CN112563789A

CN112563789A - Automatic locking type connector

Info

Publication number: CN112563789A
Application number: CN202011504510.4A
Authority: CN
Inventors: 赵婵娟; 卜小笑; 张晓娟; 许柳; 曾斌; 杨建军
Original assignee: Shaanxi Huada Science Technology Co Ltd
Current assignee: Shaanxi Huada Science Technology Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-26

Abstract

The invention discloses an automatic locking type connector, which comprises a plug connector shell, wherein a plug connector base is adhered inside the plug connector shell, three contact pins with leads are inserted and arranged in the middle of the plug connector base, a filling groove is formed in the top end of the plug connector shell, plug pouring sealant is filled inside the filling groove, lock hooks are arranged on two sides of the plug connector shell and comprise elastic sheets and clamping hooks positioned at the end parts of the elastic sheets, the outer sides of the bottom ends of the clamping hooks are oblique edges, the top ends of the clamping hooks are straight edges, riveting sleeves are inserted and arranged on the outer sides of the two elastic sheets, and the elastic sheets and the plug connector shell are riveted through the riveting sleeves. According to the invention, through the arranged locking hook and the locking groove, when the plug connector is connected with the socket connector, the clamping hook of the locking hook is clamped into the locking groove, and the plane of the locking hook is clamped with the inner wall of the locking groove, so that the self-locking between the plug connector and the socket connector is completed.

Description

Automatic locking type connector

Technical Field

The invention relates to a connector, in particular to an automatic locking type connector.

Background

The micro-rectangular electric connector is a kind of electric connector which is developed rapidly in China in recent years, and has extremely high application value and development potential in military fields such as aerospace and the like. Modern weaponry has been increasingly moving towards miniaturization, light weight, high integration, multiple functions, and high reliability, and this trend will become more apparent in the future. In order to meet the development requirement of the whole machine model, the matched electronic component also has the characteristics. The technical level of the electric connector as a basic electronic component directly influences the basic quality of the whole machine, so the development trend of the whole machine also puts higher requirements on the matched electric connector.

Particularly, some connectors have the following requirements that a single needle of the connector bears 3A current, the number of cores of the connector is not more than 5, and the length and the width of the connector are not more than 8 mm; the weight of a single connector (without wire weight) cannot exceed 3 g; the application environment is that 60 connectors are required to be arranged on a circular mounting plate with the diameter of 200 mm; the connector does not need thread locking, can be plugged and pulled quickly, and can be used for automatic assembly of a mechanical arm.

Two types of conventional automatic locking micro rectangular connectors are available; the CDbA automatic locking type product plug connector consists of a shell, a base, a contact pin with a lead, a wire protecting shell, a lock hook, a spring, a riveting sleeve, a dust cover and a pressing plate. The socket connector consists of a shell, a base, a socket with a wire jack, a hook, a sealing gasket, a fixing sleeve, a screw, an elastic gasket, a flat gasket, a nut and a dust cover. The plug connector combines the lock hook and the spring with the wire protecting shell and the wire protecting shell through the riveting sleeve, the lock hook is opened and closed through spring compression, and the lock hook is clamped to a hook of the socket connector after being opened, so that the connector is locked; the MDM automatic locking type product plug connector is identical to a CDbA structure, and is improved on the basis of the CDbA only by using the socket connector, two hanging lugs are added to a socket of an MDM socket connector shell, and a hook and a shell of the CDbA socket connector are improved into an integral type, so that parts are reduced, and the length and the size of the socket connector are reduced.

However, both of the above connectors have some disadvantages in use, firstly, the product is bulky: the minimum core number of the micro rectangular connector with 3A current and 1.27 spacing is 9 cores at present, the plug connector size of CDbA (9 cores) products is 18.5 multiplied by 29.6 multiplied by 9.4 (mm), and the socket connector size is 23.7 multiplied by 10.6 multiplied by 13 (mm). MDM (9 core) product plug connector dimensions 18.7 × 28.8 × 9.4 (mm), receptacle connector dimensions 19.55 × 10.6 × 7.6 (mm); secondly, the product has heavy weight: the plug connector weight of the CDbA (9 core) product is 7.4g, and the socket connector weight is 3.3 g. The plug connector weight of the MDM (9 core) product is 7.4g, and the socket connector weight is 2.4 g; finally, the product has more parts: the hook of the CDbA socket connector needs to be fixed on the shell of the socket connector through a fixed sleeve and a screw, and parts are complicated and lacking; in addition, the length and the width of the 3-core connector cannot be within 8mm by the automatic locking structure of the existing product, so that the existing connector cannot meet the requirements, and therefore the connector is improved, and the automatic locking type connector is provided.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides an automatic locking type connector.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to an automatic locking type connector, which comprises a plug connector shell, wherein a plug connector base is adhered inside the plug connector shell, three contact pins with leads are inserted in the middle of the plug connector base, a filling groove is formed in the top end of the plug connector shell, plug pouring sealant is filled in the filling groove, two sides of the plug connector shell are respectively provided with a lock hook, each lock hook comprises a spring piece and a clamping hook positioned at the end part of the spring piece, the outer side of the bottom end of each clamping hook is a bevel edge, the top end of each clamping hook is a straight edge, riveting sleeves are inserted on the outer sides of the two spring pieces, the spring pieces and the plug connector shell are riveted through the riveting sleeves, the outer side of each spring piece is sleeved with a locking sleeve, each locking sleeve comprises a limiting part and an inserting part fixedly connected to the bottom of the limiting part, and two sides of the limiting part are respectively provided with three, the plug-in connector is characterized in that square holes corresponding to the clamping hooks are formed in two sides of the interior of the plug-in part, the clamping hooks penetrate through the square holes, and the plug-in part is sleeved with the socket connector.

According to the preferable technical scheme, the socket connector comprises a socket connector shell, a mounting plate is fixedly arranged inside the socket connector shell, a socket connector base is adhered to the middle of the mounting plate, three wire insertion holes are arranged in the middle of the socket connector base in an inserting mode, a locking pad located at the top of the socket connector base is sleeved on the wire insertion holes, socket pouring sealant is filled inside the bottom end of the socket connector shell, and locking grooves corresponding to the square holes are formed in two sides inside the socket connector shell.

According to the preferable technical scheme, the socket connector comprises a socket connector shell, mounting bases are fixedly arranged on two sides of the bottom end of the socket connector shell, mounting holes are formed in the tops of the two mounting bases, a mounting plate is fixedly arranged inside the socket connector shell, the socket connector base is adhered to the middle of the mounting plate, a wire-containing jack is inserted into the middle of the socket connector base, a locking pad located at the top of the socket connector base is sleeved on the wire-containing jack, socket pouring sealant is filled into the bottom end of the socket connector shell, and locking grooves corresponding to square holes are formed in two sides of the inside of the socket connector shell.

As a preferred technical solution of the present invention, the top end of the inside of the socket connector housing is provided with a second inclined surface, the circumference side of the bottom end of the insertion portion is provided with a third inclined surface, the bottom end of the socket connector base is fixedly provided with a fastening ring located on the circumference side of the wire-carrying insertion hole, and the length of the locking groove is smaller than that of the square hole.

As a preferred technical scheme of the invention, the top end inside the plug connector base is provided with a first inclined plane, and a contact pin in the contact pin with the lead is formed by reversely twisting inner and outer rings of 10 elastic copper wires.

As a preferred embodiment of the present invention, the length of the receptacle connector housing in the region above the mounting plate is slightly greater than the length of the insertion portion.

As a preferable technical scheme of the present invention, the front end of the insertion portion is an isosceles trapezoid structure, all corners of the locking sleeve are rounded corners, and the insertion portion and the housing of the receptacle connector have the same shape.

As a preferable technical scheme of the invention, sliding grooves matched with the end parts of the riveting sleeves are formed on two sides inside the limiting part.

The invention has the beneficial effects that: this automatic locking type connector:

1. through the arranged lock hook and the lock groove, when the plug connector is connected with the socket connector, the hook of the lock hook is clamped into the lock groove, and the plane of the lock hook is clamped with the inner wall of the lock groove, so that the self-locking between the plug connector and the socket connector is completed;

2. through the arranged locking pad, when the plug connector is inserted into the socket connector, the locking pad of the socket connector is compressed, so that the pre-locking of the connector is realized, the locking hook of the plug connector is ensured to be completely bounced open, meanwhile, the axial force is generated by the insertion and closing of the connector, the locking pad plays a role in resisting vibration and impact, and the compression amount of the locking pad is determined according to the test requirements of a user;

3. the socket connector base can be limited to a certain extent during installation through the fastening ring, so that the installation of the socket connector base with the wire insertion holes and the locking pad is facilitated, the fastening ring can be filled with epoxy resin, the wire insertion holes can be effectively fixed, and the wire compression joint is prevented from being stressed in the process of plugging and unplugging the connector; the traditional base is not designed, the jack with the wire is required to be higher than the tail part of the base by about 1mm to achieve similar effect, and the novel structure effectively reduces the height size of the connector;

4. through the locking sleeve and the trapezoidal structure at the front end of the shell of the socket connector, when the mechanical arm is used for plugging and unplugging, the identification of the mechanical arm is convenient, the reverse plugging of the plug connector is avoided during artificial plugging and unplugging, and the foolproof function is realized;

5. the mechanical arm can conveniently grab the plug connector when the mechanical arm grabs the plug connector through the strip-shaped anti-slip groove, and meanwhile, whether the mechanical arm grabbing plug connector inclines or not can be confirmed by utilizing the inclination angle of the strip-shaped anti-slip groove;

6. the socket connector is directly welded on a mounting plate of a user, so that a mounting hole is omitted, the structure not only meets the mounting requirement, but also reduces the length size of the connector, or a mounting base is mounted on the mounting plate by using a bolt;

7. the connector with the mounting base and the mounting hole can be selected according to different mounting modes of users;

8. the contact pin is arranged on the contact pin with the lead, and is extruded to be thin when being inserted into the jack with the lead, and the contact pin expands to abut against the inner wall of the jack with the lead when the elastic force of the contact pin, so that the stable connection between the contact pin and the jack with the lead can be realized, the poor contact is not easy to cause, and the plug connector is not easy to shake and drop in the process of being inserted into the socket connector;

9. through an inclined plane and No. two inclined planes that are equipped with, when inserting the socket connector with plug connector, take the wire jack to insert the plug connector base along an inclined plane in, spacing part can be more smooth insert the socket connector shell in, make the connector connect more conveniently.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of an automatic locking connector according to the present invention;

FIG. 2 is a cross-sectional view of a plug connector of an auto-locking connector according to the present invention;

FIG. 3 is a side view of a plug connector of the auto-locking connector of the present invention;

FIG. 4 is a schematic top view of a plug connector of an auto-locking connector of the present invention;

FIG. 5 is a schematic front cross-sectional view of one form of receptacle connector of the auto-locking connector of the present invention;

FIG. 6 is a side view of one form of receptacle connector of the auto-locking connector of the present invention;

FIG. 7 is a schematic top view of one form of receptacle connector of the auto-locking connector of the present invention;

FIG. 8 is a schematic front cross-sectional view of another form of receptacle connector of the auto-lock connector of the present invention;

FIG. 9 is a side view of another form of receptacle connector of the auto-locking connector of the present invention;

FIG. 10 is a schematic top view of another form of receptacle connector of the auto-locking connector of the present invention;

FIG. 11 is a schematic diagram of the CDbA auto-locking plug connector of the reference;

FIG. 12 is a schematic diagram of the CDbA auto-locking receptacle connector of the reference;

FIG. 13 is a schematic diagram of the structure of an MDM auto-locking plug connector in the comparison document;

figure 14 is a schematic diagram of the MDM auto-locking receptacle connector of the comparison document.

In the figure: 1. a plug connector housing; 2. a plug connector base; 3. a pin with a lead; 4. a latch hook; 5. a square hole; 6. riveting a sleeve; 7. a locking sleeve; 71. a stopper portion; 72. an insertion portion; 8. pouring sealant into the plug; 9. a strip-shaped anti-slip groove; 10. a receptacle connector housing; 11. a socket connector base; 12. a locking pad; 13. a wire jack is provided; 14. a locking groove; 15. pouring sealant into the socket; 16. a fastening ring; 17. mounting a base; 18. and (7) installing holes.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14, the connector of the present invention comprises a plug connector housing 1, a plug connector base 2 is adhered inside the plug connector housing 1, three pins 3 with wires are inserted in the middle of the plug connector base 2, a filling groove is formed at the top end of the plug connector housing 1, a plug potting adhesive 8 is filled inside the filling groove, locking hooks 4 are respectively arranged at both sides of the plug connector housing 1, each locking hook 4 is composed of a spring and a hook at the end of the spring, the outer sides of the bottom ends of the hooks are oblique edges, the top ends of the hooks are straight edges, riveting sleeves 6 are inserted outside the two springs, riveting sleeves 6 are used for riveting between the spring and the plug connector housing 1, locking sleeves 7 at the outer sides of the spring, the lock sleeve 7 is composed of a limiting part 71 and an inserting part 72 fixedly connected to the bottom of the limiting part 71, three strip-shaped anti-slip grooves 9 are formed in two sides of the limiting part 71, square holes 5 corresponding to the clamping hooks are formed in two sides of the inside of the inserting part 72, the clamping hooks penetrate through the square holes 5, and a socket connector is sleeved on the inserting part 72.

Wherein, the socket connector includes socket connector shell 10, the fixed mounting panel that is equipped with in inside of socket connector shell 10, the middle part adhesion of mounting panel is equipped with socket connector base 11, the middle part interlude of socket connector base 11 is equipped with three wire jack 13 of taking, the cover is equipped with the locking pad 12 that is located 11 tops of socket connector base on the wire jack 13 of taking, the inside packing of socket connector shell 10 bottom is equipped with socket casting glue 15, the inside both sides of socket connector shell 10 all seted up with 5 corresponding locking grooves of quad slit 14, socket connector beading is on user's mounting panel, the dress hole has been saved, such structure satisfies the length size that the installation requirement has reduced the connector again promptly.

Wherein, the socket connector includes socket connector shell 10, the both sides of socket connector shell 10 bottom are all fixed and are equipped with mounting base 17, mounting hole 18 has all been seted up at two mounting base 17 tops, the inside fixed mounting panel that is equipped with of socket connector shell 10, the middle part adhesion of mounting panel is equipped with socket connector base 11, the middle part interlude of socket connector base 11 is equipped with takes wire jack 13, take the wire jack 13 to go up the cover and be equipped with the locking pad 12 that is located socket connector base 11 top, the inside packing of socket connector shell 10 bottom is equipped with socket casting glue 15, the inside both sides of socket connector shell 10 all seted up with 5 corresponding locking grooves of quad slit 14, can be different according to user's mounting means, choose for use the connector that has mounting base 17 and mounting hole 18.

Wherein, the top end of the socket connector shell 10 is provided with a second inclined plane, the circumference side of the bottom end of the inserting part 72 is provided with a third inclined plane, the bottom end of the socket connector base 11 is fixedly provided with a fastening ring 16 positioned on the circumference side of the wire-carrying jack 13, and the length of the locking groove 14 is smaller than that of the square hole 5, so that the plug connector can be conveniently inserted into the socket connector.

Wherein, the contact pin in the inclined plane area wire contact pin is seted up on the inside top of plug connector base 2 is formed by the reverse transposition of 10 elastic copper line inner and outer circles, and the contact pin receives the extrusion attenuate when inserting area wire jack 13, and the contact pin inflation supports the inner wall of taking wire jack 13 during the elasticity of contact pin, can realize the contact pin and take wire jack 13 between be connected stably, is difficult to cause contact failure, and the in-process that plug connector inserted the socket connector is difficult to rock and drop simultaneously.

The length of the socket connector shell 10 above the mounting plate is slightly larger than the length of the insertion part 72, and the socket connector shell is matched with the locking pad 12, when the plug connector is inserted into the socket connector, the locking pad 12 of the socket connector is compressed, so that the pre-locking of the connector is realized, the plug connector locking hook 4 is ensured to be completely bounced, meanwhile, the axial force is generated by the plugging of the connector, and the locking pad 12 plays a role in resisting vibration and impact.

Wherein, the front end of male portion 72 is isosceles trapezoid structure, and all corners of lock sleeve 7 are the fillet, and male portion 72 is the same with socket connector shell 10's shape, and the mechanical arm's of being convenient for discernment when using the arm plug avoids inserting in the plug connector during artificial plug and turns over, has the foolproof function.

Wherein, the inside both sides of spacing part 71 are seted up and are riveted the spout that 6 tip matches settings of cover.

During working, the plug connector is assembled, firstly, the plug connector base 2 is bonded in the plug connector shell 1, then the contact pin 3 with the lead is arranged in the plug connector base 2, the plug pouring sealant 8 is fixed in the shell body, the lock hook 4 is turned over and riveted in the plug connector shell 1 through the rivet sleeve 6, and finally the lock sleeve 7 is clamped on the lock hook 4, so that the assembly is completed; assembling the socket connector, firstly, bonding a socket connector base 11 in a socket connector shell 10, installing a wire jack 13 in the socket connector base 11, fixing the socket connector base in the shell of the socket connector shell 10 by using a socket pouring sealant 15, then installing a locking pad 12 in the wire jack 13, completing the assembly, then installing the socket connector on an installation plate, when the plug connector is connected with the socket connector, inserting a corresponding inserting part 72 into the socket connector shell 10, at the moment, inserting the wire jack 13 between the plug connector base 2 and the wire pin 3, extruding a hook in a locking hook 4 by the socket connector shell 10, when the plug connector shell 1 is propped against the locking pad 12, extruding the locking pad 12 by the plug connector shell 1 to compress the locking pad 12, buffering can be carried out, and popping the hook into a locking groove 14 by a spring sheet in the locking hook 4, when the self-locking is completed, when the plug connector is separated from the socket connector, the mechanical arm pinches the locking sleeve 7 and lifts up, the inserting part 72 moves up to press the inclined surface of the hook, so that the locking hook 4 on the plug connector is contracted and then separated from the socket connector, and the locking and the separation of the plug connector and the socket connector are realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The connector comprises a plug connector shell (1) and is characterized in that a plug connector base (2) is arranged on the inner adhesion of the plug connector shell (1), three lead-containing contact pins (3) are arranged in the middle of the plug connector base (2) in an inserting mode, a filling groove is formed in the top end of the plug connector shell (1), plug pouring sealant (8) is filled in the filling groove, locking hooks (4) are arranged on two sides of the plug connector shell (1), each locking hook (4) consists of a spring sheet and a clamping hook located at the end portion of the spring sheet, the outer side of the bottom end of each clamping hook is a bevel edge, the top end of each clamping hook is a straight edge, riveting sleeves (6) are arranged on the outer sides of the two spring sheets in an inserting mode, the spring sheets are riveted through the riveting sleeves (6), and locking sleeves (7) are sleeved on the outer sides of the spring sheets, the locking sleeve (7) comprises a limiting part (71) and an inserting part (72) fixedly connected to the bottom of the limiting part (71), three strip-shaped anti-skidding grooves (9) are formed in two sides of the limiting part (71), square holes (5) corresponding to the clamping hooks are formed in two sides of the inside of the inserting part (72), the clamping hooks penetrate through the square holes (5), and a socket connector is sleeved on the inserting part (72).

2. The automatic locking type connector according to claim 1, wherein a mounting plate is fixedly arranged inside the socket connector housing (10), a socket connector base (11) is adhered to the middle of the mounting plate, three wire insertion holes (13) are inserted into the middle of the socket connector base (11), a locking pad (12) located at the top of the socket connector base (11) is sleeved on the wire insertion holes (13), a socket potting adhesive (15) is filled inside the bottom end of the socket connector housing (10), and locking grooves (14) corresponding to the square holes (5) are formed in two sides inside the socket connector housing (10).

3. An automatically locking connector according to claim 1, wherein said receptacle connector comprises a receptacle connector housing (10), mounting bases (17) are fixedly arranged on two sides of the bottom end of the socket connector shell (10), mounting holes (18) are formed in the tops of the two mounting bases (17), a mounting plate is fixedly arranged inside the socket connector shell (10), a socket connector base (11) is adhered to the middle part of the mounting plate, the middle part of the socket connector base (11) is inserted with a wire jack (13), a locking pad (12) positioned at the top of the socket connector base (11) is sleeved on the wire-carrying jack (13), socket pouring sealant (15) positioned at the bottom end of the mounting plate is filled in the socket connector shell (10), and locking grooves (14) corresponding to the square holes (5) are formed in two sides of the interior of the socket connector shell (10).

4. An automatic locking type connector according to claim 2 or 3, wherein the top end of the inside of the socket connector housing (10) is formed with a second inclined surface, the circumference of the bottom end of the insertion portion (72) is formed with a third inclined surface, the bottom end of the socket connector base (11) is fixedly provided with a fastening ring (16) located on the circumference of the wire insertion hole (13), and the length of the locking groove (14) is smaller than that of the square hole (5).

5. The automatic locking connector according to claim 1, wherein the top end of the inside of the plug connector base (2) is provided with a first inclined surface, and the pin of the pin (3) with the conducting wire is formed by reversely twisting the inner and outer rings of 10 elastic copper wires.

6. An automatic locking connector according to claim 4, wherein the length of the receptacle connector housing (10) in the area above the mounting plate is slightly larger than the length of the insertion portion (72).

7. An automatically locking connector according to claim 4, characterized in that the front end of said insertion portion (72) is of an isosceles trapezoid configuration, all the corners of said locking sleeve (7) are rounded, and the shape of said insertion portion (72) and the shape of said receptacle connector housing (10) are identical.

8. The automatic locking connector of claim 1, wherein the two sides of the inside of the limiting part (71) are provided with sliding grooves matched with the ends of the riveting sleeve (6).