CN111682345B

CN111682345B - Connector with a locking member

Info

Publication number: CN111682345B
Application number: CN202010554690.0A
Authority: CN
Inventors: 陈志成; 黄国华; 许永隆
Original assignee: Speed Tech Corp
Current assignee: Speed Tech Corp
Priority date: 2020-05-11
Filing date: 2020-06-17
Publication date: 2021-09-21
Anticipated expiration: 2040-06-17
Also published as: TW202109988A; CN111682345A; TWI729804B

Abstract

The application discloses a connector, which comprises a first terminal assembly and a second terminal assembly, wherein the first terminal assembly comprises a first insulating seat and a plurality of first terminals, and the first insulating seat is provided with a first joint surface and a first buckling part; the plurality of first terminals are arranged on the first insulating base; the second terminal assembly is provided with a second insulating seat and a second buckling part, and the second insulating seat is provided with a second joint surface and a second buckling part; the plurality of second terminals are arranged on the second insulating seat; the first terminal assembly is arranged on the second terminal assembly, the first buckling part is connected with the second buckling part, and the first joint surface is adjacent to the second joint surface so as to prevent the first insulating seat and the second insulating seat from generating displacement in the direction perpendicular to the first joint surface and the direction parallel to the first joint surface.

Description

Connector with a locking member

Technical Field

The application relates to the technical field of connectors, in particular to a connector with stable connectivity.

Background

The connector generally includes two terminal assemblies connected by a connecting structure to form two insertion portions, each insertion portion having two terminal sets opposite to each other. The connection structure makes only an interference connection in a single direction, such as a cylindrical and round hole connection. When two insertion parts of the connector are repeatedly inserted into and pulled out of another connector or in a high-temperature use environment, the two terminal assemblies are easily propped apart, so that the gap between the two terminal assemblies is increased, and poor contact is caused.

Disclosure of Invention

The embodiment of the application provides a connector, which solves the problem that poor contact occurs due to the fact that two terminal assemblies of the existing connector are connected in a single-direction interference mode through a connecting structure, the two terminal assemblies are repeatedly inserted and pulled out or are easily separated from each other in a high-temperature use environment, and gaps between the two terminal assemblies are increased.

In order to solve the technical problem, the present application is implemented as follows:

provided is a connector, including: a first terminal assembly comprising: the first insulating seat is provided with a first joint surface and a first buckling part, and the first buckling part is positioned on the first joint surface; the first terminals are arranged on the first insulating seat and are far away from the first joint surface, and the extending directions of the first terminals are parallel to the first joint surface; a second terminal assembly comprising: the second insulating seat is provided with a second joint surface and a second buckling part, and the second buckling part is positioned on the second joint surface; the plurality of second terminals are arranged on the second insulating seat and are far away from the second joint surface, and the extending directions of the plurality of second terminals are parallel to the second joint surface; the first terminal assembly is arranged on the second terminal assembly, the first buckling part is connected with the second buckling part, and the first joint surface is adjacent to the second joint surface so as to prevent the first insulating seat and the second insulating seat from generating displacement in the direction perpendicular to the first joint surface and the direction parallel to the first joint surface.

In the embodiment of the application, the first buckling part and the second buckling part are in multi-direction interference connection, so that the connection performance between the first terminal assembly and the second terminal assembly is stable, the first terminal assembly and the second terminal assembly are not easy to separate in a repeatedly plugging use environment or a poor use environment, gaps between a plurality of first terminals of the first terminal assembly and a plurality of second terminals of the second terminal assembly are kept constant, and the problem that the connector is poor in contact is avoided.

Drawings

Fig. 1 is a perspective view of a connector of a first embodiment of the present application;

FIG. 2 is a cross-sectional view taken along line A-A' of FIG. 1;

fig. 3 is a combined perspective view of a first terminal assembly and a second terminal assembly of the first embodiment of the present application;

FIG. 4 is a perspective view of a first terminal assembly of the first embodiment of the present application;

figure 5 is a perspective view of a second terminal assembly of the first embodiment of the present application;

FIG. 6 is a cross-sectional view taken along line B-B' of FIG. 4;

FIG. 7 is a cross-sectional view taken along line C-C' of FIG. 5;

FIG. 8 is a combined cross-sectional view of a first latch and a second latch of the first embodiment of the present application;

FIG. 9 is a cross-sectional view taken along line D-D' of FIG. 4;

FIG. 10 is a cross-sectional view taken along line E-E' of FIG. 5;

FIG. 11 is another assembled cross-sectional view of the first and second latch portions of the first embodiment of the present application;

FIG. 12 is another perspective view of the first terminal assembly of the first embodiment of the present application;

figure 13 is another perspective view of the second terminal assembly of the first embodiment of the present application;

fig. 14 is a schematic view of a combination of a first terminal assembly and a second terminal assembly of a second embodiment of the present application;

FIG. 15 is a perspective view of a first terminal assembly of a second embodiment of the present application;

figure 16 is a perspective view of a second terminal assembly of the second embodiment of the present application;

FIG. 17 is a cross-sectional view taken along line I-I' of FIG. 15;

FIG. 18 is a cross-sectional view taken along line F-F' of FIG. 16;

fig. 19 is a combined cross-sectional view of a first terminal assembly and a second terminal assembly of a second embodiment of the present application;

FIG. 20 is a sectional view taken along line G-G' of FIG. 15;

FIG. 21 is a cross-sectional view taken along line H-H' of FIG. 16; and

fig. 22 is a combined cross-sectional view of a first terminal assembly and a second terminal assembly of the second embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, there are shown a perspective view of a connector according to a first embodiment of the present application and a cross-sectional view taken along line a-a' in fig. 1; as shown in the drawings, the connector 1 of the present embodiment includes a housing 10, a plurality of first terminal assemblies 11, and a plurality of second terminal assemblies 12, the housing 10 has a first surface 10a, a second surface 10b, and a plurality of insertion holes 101, the first surface 10a is opposite to the second surface 10b, the plurality of insertion holes 101 are respectively located on the first surface 10a and the second surface 10b, and the plurality of insertion holes 101 located on the first surface 10a are respectively opposite to the plurality of insertion holes 101 located in the plurality of insertion holes 101 located on the second surface 10 b. The plurality of first terminal assemblies 11 are respectively disposed on the plurality of second terminal assemblies 12 to form a plurality of sets of connected first terminal assemblies 11 and second terminal assemblies 12, each first terminal assembly 11 has a plurality of first terminals 111, each second terminal assembly 12 has a plurality of second terminals 121, the housing 10 accommodates the plurality of connected first terminal assemblies 11 and second terminal assemblies 12, the plurality of first terminals 111 of the first terminal assemblies 11 and the plurality of second terminals 121 of the second terminal assemblies 12 are respectively inserted into the two opposite insertion holes 101, that is, the plurality of first terminals 111 and the plurality of second terminals 121 are inserted into the insertion holes 101 on the first surface 10a and are opposite to each other, and the plurality of first terminals 111 and the plurality of second terminals 121 are also inserted into the insertion holes 101 on the second surface 10b and are opposite to each other. The number of the insertion holes 101 corresponds to the number of sets of the first terminal assembly 11 and the second terminal assembly 12.

Reference is also made to fig. 3, 4 and 5, which are perspective views of the first terminal assembly and the second terminal assembly, respectively, according to the first embodiment of the present application; as shown in the figure, each first terminal assembly 11 further includes a first insulating base 112, the plurality of first terminals 111 are disposed on the first insulating base 112, the first insulating base 112 has a first joint surface 112a, a first bottom surface 112b, a first upper surface 112c, a first lower surface 112d, a first left side surface 112e and a first right side surface 112f, the first joint surface 112a is opposite to the first bottom surface 112b, the first upper surface 112c is opposite to the first lower surface 112d, the first left side surface 112e is opposite to the first right side surface 112f, and the first joint surface 112a, the first bottom surface 112b, the first left side surface 112e and the first right side surface 112f are located between the first upper surface 112c and the first lower surface 112 d. The first insulating base 112 further has a first fastening portion 1121, and the first fastening portion 1121 is located on the first joint surface 112 a. The plurality of first terminals 111 are disposed at intervals on the first insulating base 112 and far away from the first bonding surface 112a, the plurality of first terminals 111 penetrate through the first upper surface 112c and the first lower surface 112d of the first insulating base 112, two ends of the plurality of first terminals 111 extend in a direction far away from the first insulating base 112, and an extending direction of the plurality of first terminals 111 is parallel to the first bonding surface 112 a.

Each second terminal assembly 12 further includes a second insulating base 122, the plurality of second terminals 121 are disposed on the second insulating base 122, the second insulating base 122 has a second engaging surface 122a, a second bottom surface 122b, a second upper surface 122c, a second lower surface 122d, a second left side surface 122e and a second right side surface 122f, the second engaging surface 122a is opposite to the second bottom surface 122b, the second upper surface 122c is opposite to the second lower surface 122d, the second left side surface 122e is opposite to the second right side surface 122f, and the second engaging surface 122a, the second bottom surface 122b, the second left side surface 122e and the second right side surface 122f are located between the second upper surface 122c and the second lower surface 122 d. The second insulating base 122 further has a second fastening portion 1221, and the second fastening portion 1221 is located on the second engaging surface 122 a. The plurality of second terminals 121 are disposed at intervals on the second insulating base 122 and are far away from the second bonding surface 122a, the plurality of second terminals 121 penetrate through the second upper surface 122c and the second lower surface 122d of the second insulating base 122, two ends of the plurality of second terminals 121 extend in a direction far away from the second insulating base 122, and the extending direction of the plurality of second terminals 121 is parallel to the second bonding surface 122 a.

When the first terminal assembly 11 is disposed on the second terminal assembly 12, the first latching portion 1121 and the second latching portion 1221 are connected, and the first engaging surface 112a and the second engaging surface 122a are adjacent to each other, so as to prevent the first insulating base 112 and the second insulating base 122 from being displaced in a direction (X direction) perpendicular to the first engaging surface 112a and a direction (Z direction) parallel to the first engaging surface 112 a.

As can be seen from the above description, the first terminal assembly 11 and the second terminal assembly 12 of the present embodiment are in interference connection with the second fastening portion 1221 in the X direction and the Z direction through the first fastening portion 1121, so that the first terminal assembly 11 and the second terminal assembly 12 can be prevented from being displaced (including moving and rotating), the first terminal assembly 11 and the second terminal assembly 12 have stable connectivity, the first terminal assembly 11 and the second terminal assembly 12 are not easily separated in a repeatedly plugging and unplugging usage environment or in a poor usage environment, a gap between the plurality of first terminals 111 of the first terminal assembly 11 and the plurality of second terminals 121 of the second terminal assembly 12 is maintained constant, and the problem of poor contact of the connector 1 is avoided.

In this embodiment, the number of the first fastening portions 1121 and the number of the second fastening portions 1221 are multiple, the number of the first fastening portions 1121 is consistent with the number of the second fastening portions 1221, and the number of the first fastening portions 1121 is two, as shown in the area a and the area a' in fig. 4; the second locking portion 1221 has two structures, as shown in regions B and B' in fig. 5. When the first terminal assembly 11 is disposed on the second terminal assembly 12, the first latching portion 1121 shown in the area a in fig. 4 is connected to the second latching portion 1221 shown in the area B in fig. 5, and the first latching portion 1121 shown in the area a 'in fig. 4 is connected to the second latching portion 1221 shown in the area B' in fig. 5. Of course, the structure of the first fastening portion 1121 of the first terminal assembly 11 can be shown in area a or area a' in fig. 4, and if the structure of the first fastening portion 1121 of the first terminal assembly 11 is shown in area a in fig. 4, the structure of the second fastening portion 1221 is shown in area B in fig. 5; if the structure of the first fastening portion 1121 of the first terminal assembly 11 is shown in the area a 'in fig. 4, the structure of the second fastening portion 1221 is shown in the area B' in fig. 5.

The following describes the structure of the first latching portion 1121 shown in the area a in fig. 4 and the second latching portion 1221 shown in the area B in fig. 5, with reference to fig. 6 and 7, which are a cross-sectional view taken along the line B-B 'in fig. 4 and a cross-sectional view taken along the line C-C' in fig. 5; as shown in the drawing, the first latching portion 1121 shown in the area a in fig. 4 has a first latching groove 11211, the first latching groove 11211 has an upper latching wall 11211a, a lower latching wall 11211b and an insertion opening 11211c, the insertion opening 11211c is located on the first engagement surface 112a, the upper latching wall 11211a corresponds to the first upper surface 112c, and the lower latching wall 11211b corresponds to the first lower surface 112 d. The upper catch wall 11211a and the lower catch wall 11211b each have at least one positioning groove 11211 d. The second fastening portion 1221 shown in the area B in fig. 5 includes a positioning column 12211 and at least two positioning protrusions 12212, the positioning column 12211 is disposed on the second engagement surface 122a, the positioning column 12211 includes an upper positioning surface 12211a and a lower positioning surface 12211B, the upper positioning surface 12211a corresponds to the second upper surface 122c, and the lower positioning surface 12211B corresponds to the second lower surface 122 d. At least two positioning protrusions 12212 are respectively disposed on the upper positioning surface 12211a and the lower positioning surface 12211 b.

Please refer to fig. 8, which is a combined cross-sectional view of the first locking portion and the second locking portion according to the first embodiment of the present application; as shown in the figure, when the first fastening portion 1121 is connected to the second fastening portion 1221, the second fastening portion 1221 enters the first slot 11211 from the insertion opening 11211c, and at least two positioning protrusions 12212 are respectively located in the corresponding positioning slots 11211 d. The upper locking wall 11211a and the upper positioning surface 12211a of the first locking slot 11211 of this embodiment limit the displacement of the positioning protrusion 12212 located on the upper positioning surface 12211a in the direction (Z direction) parallel to the first engagement surface 112a, and the lower locking wall 11211b and the lower positioning surface 12211b of the first locking slot 11211 limit the displacement of the positioning protrusion 12212 located on the lower positioning surface 12211b in the direction (Z direction) parallel to the first engagement surface 112 a.

The positioning groove 11211d has a positioning sidewall 11211e, the positioning sidewall 11211e is close to the first engagement surface 112a and is parallel to the first engagement surface 112a, the positioning projection 12212 has an abutment surface 12213, the abutment surface 12213 is far from the second engagement surface 122a and is parallel to the second engagement surface 122a, and when the positioning projection 12212 is located at the corresponding positioning groove 11211d, the abutment surface 12213 abuts against the positioning sidewall 11211e, limiting displacement of the positioning projection 12212 in a direction (X direction) perpendicular to the first engagement surface 112 a.

The number of the positioning grooves 11211d on the upper fastening wall 11211a matches the number of the positioning protrusions 12212 on the upper positioning surface 12211a of the positioning post 12211, the number of the positioning grooves 11211d on the lower fastening wall 11211b matches the number of the positioning protrusions 12212 on the lower positioning surface 12211b of the positioning post 12211, in this embodiment, the number of the positioning grooves 11211d on the upper fastening wall 11211a and the number of the positioning protrusions 12212 on the upper positioning surface 12211a of the positioning post 12211 are both two, and the number of the positioning grooves 11211d on the lower fastening wall 11211b and the number of the positioning protrusions 12212 on the lower positioning surface 12211b of the positioning post 12211 are both two.

The following describes the structure of the first latching portion 1121 shown in the area a 'in fig. 4 and the second latching portion 1221 shown in the area B' in fig. 5, referring to fig. 9 and 10 together, which are a cross-sectional view taken along the line D-D 'in fig. 4 and a cross-sectional view taken along the line E-E' in fig. 5; as shown, the second latching portion 1221 shown in the region B' in fig. 5 has a second latching groove 12214, the second latching groove 12214 has an upper latching wall 12214a, a lower latching wall 12214B, and an insertion opening 12214c, the insertion opening 12214c is located on the second engagement surface 122a, the upper latching wall 12214a corresponds to the second upper surface 122c, and the lower latching wall 12214B corresponds to the second lower surface 122 d. The upper and

lower catch walls

12214a and 12214b each have at least one detent 12214 d. The first fastening portion 1121 shown in the area a' in fig. 4 has a positioning column 11212 and at least two positioning bumps 11213, the positioning column 11212 is disposed on the first bonding surface 112a, the positioning column 11212 has an upper positioning surface 11212a and a lower positioning surface 11212b, the upper positioning surface 11212a corresponds to the first upper surface 112c, and the lower positioning surface 11212b corresponds to the second lower surface 122 d. At least two positioning bumps 11213 are respectively disposed on the upper positioning surface 11212a and the lower positioning surface 11212 b. Please refer to fig. 11, which is another combined cross-sectional view of the first locking portion and the second locking portion according to the first embodiment of the present application; as shown in the drawings, when the first latching portion 1121 is connected to the second latching portion 1221, the first latching portion 1121 enters the second latching groove 12214 from the insertion opening 12214c, and the at least two positioning protrusions 11213 are respectively located in the corresponding positioning slots 12214 d. The upper locking wall 12214a and the upper positioning surface 11212a of the second locking slot 12214 of the present embodiment limit the displacement of the positioning protrusion 11213 on the upper positioning surface 11212a in the direction (Z direction) parallel to the first engagement surface 112a, and the lower locking wall 12214b and the lower positioning surface 11212b of the second locking slot 12214 limit the displacement of the positioning protrusion 11213 on the lower positioning surface 11212b in the direction (Z direction) parallel to the first engagement surface 112 a.

The positioning groove 12214d has a positioning sidewall 12214e, the positioning sidewall 12214e is close to the second engagement surface 122a and is parallel to the second engagement surface 122a, the positioning protrusion 11213 has an abutment surface 11214, the abutment surface 11214 is far from the first engagement surface 112a and is parallel to the first engagement surface 112a, when the positioning protrusion 11213 is located at the corresponding positioning groove 12214d, the abutment surface 11214 abuts against the positioning sidewall 12214e, and displacement of the positioning protrusion 11213 in a direction (X direction) perpendicular to the first engagement surface 112a is limited.

In this embodiment, the number of the positioning slots 12214d on the upper fastening wall 12214a is equal to the number of the positioning protrusions 11213 on the upper positioning surface 11212a of the positioning post 11212, the number of the positioning slots 12214d on the lower fastening wall 12214b is equal to the number of the positioning protrusions 11213 on the lower positioning surface 11212b of the positioning post 11212, in this embodiment, the number of the positioning slots 12214d on the upper fastening wall 12214a is equal to the number of the positioning protrusions 11213 on the upper positioning surface 11212a of the positioning post 11212, and the number of the positioning slots 12214d on the lower fastening wall 12214b is equal to the number of the positioning protrusions 11213 on the lower positioning surface 11212b of the positioning post 11212.

In this embodiment, the first latching portion 1121 shown in the area a in fig. 4 may be disposed side by side with the first latching portion 1121 shown in the area a' in fig. 4, as the middle portion in fig. 4. The first latching portion 1121 shown in the area a in fig. 4 may be disposed separately from the first latching portion 1121 shown in the area a' in fig. 4, as shown in two side portions in fig. 4. The position of the second latching portion 1221 is opposite to the position of the first latching portion 1121, and the second latching portion 1221 shown in the region B in fig. 5 may be arranged side by side or separated from the second latching portion 1221 shown in the region B' in fig. 5. The first insulating base 112 and the second insulating base 122 of the embodiment have the same structure, so that the first insulating base 112 and the second insulating base 122 can be manufactured by a same set of mold, development of the mold is reduced, production cost is reduced, and production efficiency is improved.

Referring to fig. 6 and 10 again, one end of the positioning groove 11211d of the first buckling portion 1121 shown in the area a in fig. 4, which is away from the first engaging surface 112a, penetrates through the first bottom surface 112b, the first buckling portion 1121 shown in the area a' in fig. 4 further has a plurality of demolding grooves 11215, and the plurality of demolding grooves 11215 penetrate through the first engaging surface 112a and the first bottom surface 112b and respectively correspond to the plurality of positioning protrusions 11213; similarly, referring to fig. 7 and 9 again, the second locking portion 1221 shown in the area B in fig. 5 further has a plurality of mold stripping grooves 12215, a plurality of mold stripping grooves 12215 penetrate through the second engagement surface 122a and the second bottom surface 122B and respectively correspond to the plurality of positioning protrusions 12212, and an end of the positioning groove 12214d of the second locking portion 1221 shown in the area B' in fig. 5, which is far away from the first engagement surface 112a, penetrates through the second bottom surface 122B. The

positioning grooves

11211d and 12214d and the

mold release grooves

11215 and 12215 penetrating the bottom surface are formed by molding, and the first insulating base 112 and the second insulating base 122 of the embodiment can be formed by a simple two-layer mold to form the second insulating base 122 having the positioning bumps 12212 and the first insulating base 112 having the positioning bumps 11213.

Preferably, referring to fig. 4 and fig. 5 again, the first insulating base 112 of the present embodiment further includes a first auxiliary positioning portion 1122, the first auxiliary positioning portion 1122 is located on the first joint surface 112a, the second insulating base 122 further includes a second auxiliary positioning portion 1222, and when the first terminal assembly 11 is disposed on the second terminal assembly 12, the first auxiliary positioning portion 1122 and the second auxiliary positioning portion 1222 are connected to perform a pre-positioning operation, so that the first fastening portion 1121 can be smoothly connected to the second fastening portion 1221. First auxiliary positioning portion 1122 of the present embodiment includes auxiliary positioning posts, such as first auxiliary positioning portion 1122 near first left side surface 112e in fig. 4, and second auxiliary positioning portion 1222 corresponds to first auxiliary positioning portion 1122, so that second auxiliary positioning portion 1222 includes auxiliary positioning holes, such as second auxiliary positioning portion 1222 near second right side surface 122f in fig. 5, and the auxiliary positioning posts of first auxiliary positioning portion 1122 are disposed in the auxiliary positioning holes of second auxiliary positioning portion 1222. Of course, the first auxiliary positioning portion 1122 of the present embodiment may also include auxiliary positioning holes, such as the first auxiliary positioning portion 1122 close to the first right side surface 112f in fig. 4, and the second auxiliary positioning portion 1222 corresponds to the first auxiliary positioning portion 1122, so that the second auxiliary positioning portion 1222 includes auxiliary positioning posts, such as the second auxiliary positioning portion 1222 close to the second left side surface 122e in fig. 5, and the auxiliary positioning posts of the second auxiliary positioning portion 1222 are disposed in the auxiliary positioning holes of the first auxiliary positioning portion 1122. In the present embodiment, the number of first auxiliary positioning portions 1122 is two, the number of second auxiliary positioning portions 1222 is two, and each first auxiliary positioning portion 1122 is connected to the corresponding second auxiliary positioning portion 1222, but only a single first auxiliary positioning portion 1122 and a single second auxiliary positioning portion 1222 corresponding to the first auxiliary positioning portion 1122 may be provided, or two or more first auxiliary positioning portions 1122 and second auxiliary positioning portions 1222 may be provided, and the number of first auxiliary positioning portions 1122 corresponds to the number of second auxiliary positioning portions 1222.

Preferably, reference is made to fig. 12 and 13 together, which are another perspective view of the first terminal assembly and another perspective view of the second terminal assembly of the first embodiment of the present application; as shown, the first insulating base 112 further has first locking portions 1123, the first locking portions 1123 are located at one end of the first insulating base 112, in the embodiment, the number of the first locking portions 1123 is two, and the two first locking portions 1123 are respectively located at two ends of the first insulating base 112 and are respectively located on the first left side surface 112e and the first right side surface 112f of the first insulating base 112. The second insulating base 122 further has two second locking portions 1223, the second locking portions 1223 are located at one end of the second insulating base 122, in this embodiment, the number of the second locking portions 1223 is two, two second locking portions 1223 are respectively located at two ends of the second insulating base 122, and two second locking portions 1223 are located on the second left side surface 122e and the second right side surface 122f of the second insulating base 122. When the first terminal assembly 11 is disposed on the second terminal assembly 12, the first locking portion 1123 on the first left side surface 112e is connected to the second locking portion 1223 on the second right side surface 122f, and the first locking portion 1123 on the first right side surface 112f is connected to the second locking portion 1223 on the second left side surface 122e, in addition to the connection between the first locking portion 1121 and the second locking portion 1221, the connection between the first terminal assembly 11 and the second terminal assembly 12 of the present embodiment is further increased by the connection between the first locking portion 1123 and the second locking portion 1223, so as to increase the connection strength between the first terminal assembly 11 and the second terminal assembly 12.

In this embodiment, the first locking portion 1123 on the first right side surface 112f includes a locking piece 11231, the locking piece 11231 protrudes from the first engagement surface 112a, and the locking piece 11231 has a locking protrusion 11232. The second locking portion 1223 on the second right side surface 122f has the same structure as the first locking portion 1123 on the first right side surface 112f, and the second locking portion 1223 on the second right side surface 122f includes a locking piece 12231, the locking piece 12231 protrudes from the second engagement surface 122a, and the locking piece 12231 has a locking projection 12232.

The second locking portion 1223 on the second left surface 122e is connected to the first locking portion 1123 on the first right surface 112f, the second locking portion 1223 on the second left surface 122e includes a locking groove 12233, the locking groove 12233 is located on the side surface of the second insulating base 122, and in this embodiment, the locking groove 12233 is located on the second left surface 122e of the second insulating base 122. When the second locking portion 1223 on the second left side surface 122e is connected to the first locking portion 1123 on the first right side surface 112f, the locking protrusion 11232 of the locking piece 11231 of the first locking portion 1123 is engaged with the locking groove 12233 of the second locking portion 1223. Wherein the locking protrusion 11232 has a locking surface 11232a, and the locking surface 11232a is parallel to the first engagement surface 112 a; the locking groove 12233 has a locking side wall 12233a, the locking side wall 12233a is parallel to the second engagement surface 122a, and when the locking protrusion 11232 is locked in the locking groove 12233, the locking surface 11232a abuts against the locking side wall 12233a, thereby preventing the first locking portion 1123 and the second locking portion 1223 from being displaced in a direction (X direction) perpendicular to the first engagement surface 112 a. The two sidewalls of the locking groove 12233 perpendicular to the second engagement surface 122a abut against the opposite side surfaces of the locking piece 11231, preventing the first locking portion 1123 and the second locking portion 1223 from being displaced in a direction (Z direction) parallel to the first engagement surface 112a (see fig. 3).

The first locking portion 1123 on the first left side surface 112e is connected to the second locking portion 1223 on the second right side surface 122f, the first locking portion 1123 on the first left side surface 112e includes a locking groove 11233, the locking groove 11233 is located on the side surface of the first insulating base 112, and in this embodiment, the locking groove 11233 is located on the first left side surface 112e of the first insulating base 112. When the first locking portion 1123 on the first left side surface 112e is connected to the second locking portion 1223 on the second right side surface 122f, the locking protrusion 12232 of the locking piece 12231 of the second locking portion 1223 is engaged with the locking groove 11233 of the first locking portion 1123. Wherein the locking projection 12232 has a locking surface 12232a, the locking surface 12232a is parallel to the second engagement surface 122 a; the locking groove 11233 has a locking sidewall 11233a, the locking sidewall 11233a is parallel to the second engagement surface 122a, and when the locking protrusion 12232 is locked in the locking groove 11233, the locking surface 12232a abuts against the locking sidewall 11233a, thereby preventing the first locking portion 1123 and the second locking portion 1223 from being displaced in a direction (X direction) perpendicular to the first engagement surface 112 a. The two sidewalls of the locking groove 11233 perpendicular to the first engagement surface 112a abut against the opposite side surfaces of the locking piece 12231, preventing the first locking portion 1123 and the second locking portion 1223 from being displaced in a direction (Z direction) parallel to the first engagement surface 112 a.

Referring to fig. 14, 15 and 16, there are shown a combination of a first terminal assembly and a second terminal assembly, a perspective view of the first terminal assembly and a perspective view of the second terminal assembly in accordance with a second embodiment of the present application; as shown in the drawings, the connector 1 of the present embodiment is different from the connector of the first embodiment in the structures of the first latching portion 1121 and the second latching portion 1221. In this embodiment, the number of the first fastening portions 1121 and the number of the second fastening portions 1221 are multiple, the number of the first fastening portions 1121 is consistent with the number of the second fastening portions 1221, and the number of the first fastening portions 1121 is two, as shown in the areas C and C' in fig. 15; the second locking portion 1221 has two structures, as shown in regions D and D' in fig. 16. When the first terminal assembly 11 is disposed on the second terminal assembly 12, the first latching portion 1121 shown in the area C in fig. 15 is connected to the second latching portion 1221 shown in the area D in fig. 16, and the first latching portion 1121 shown in the area C 'in fig. 15 is connected to the second latching portion 1221 shown in the area D' in fig. 16. Of course, the structure of the first fastening portion 1121 of the first terminal assembly 11 can be shown in the area C or the area C' in fig. 15, and if the structure of the first fastening portion 1121 of the first terminal assembly 11 is shown in the area C in fig. 15, the structure of the second fastening portion 1221 is shown in the area D in fig. 16; if the structure of the first fastening portion 1121 of the first terminal assembly 11 is shown in the region C 'in fig. 15, the structure of the second fastening portion 1221 is shown in the region D' in fig. 16.

The following description is made of the structure of the first locking portion 1121 shown in the area C of fig. 15 and the second locking portion 1221 shown in the area D of fig. 16, with reference to fig. 17 and 18, which are a sectional view taken along the line I-I 'of fig. 15 and a sectional view taken along the line F-F' of fig. 16; as shown in the figure, the first latching portion 1121 shown in the region C in fig. 15 has a first groove 11216 and a stopper 11217, the first groove 11216 has an upper sidewall 11216a and a lower sidewall 11216b, the upper sidewall 11216a corresponds to the first upper surface 112C, and the lower sidewall 11216b corresponds to the first lower surface 112 d. The upper sidewall 11216a and the lower sidewall 11216b have a limiting notch 11216c, respectively, and in the present embodiment, the limiting notch 11216c on the upper sidewall 11216a is opposite to the limiting notch 11216c on the lower sidewall 11216 b. The limit block 11217 is disposed in the first groove 11216, the limit block 11217 has an upper limit surface 11217a and a lower limit surface 11217b, the upper limit surface 11217a and the lower limit surface 11217b respectively have at least one limit groove 11217c, and each limit groove 11217c is exposed from the corresponding limit notch 11216 c.

The second locking portion 1221 shown in the area D in fig. 16 has an offset groove 12216 and two locking pieces 12217, the offset groove 12216 has an upper offset sidewall 12216a and a lower offset sidewall 12216b, the upper offset sidewall 12216a corresponds to the second upper surface 122c, the lower offset sidewall 12216b corresponds to the second lower surface 122D, and the two locking pieces 12217 are disposed on the second engaging surface 122a and are respectively located on the upper offset sidewall 12216a and the lower offset sidewall 12216 b. Each locking member 12217 has at least one locking protrusion 12217 a. Fig. 19 is a combined cross-sectional view of a first terminal assembly and a second terminal assembly according to a second embodiment of the present application; as shown in the figures, when the first fastening portion 1121 is connected to the second fastening portion 1221, the two fastening pieces 12217 enter the corresponding limiting notches 11216c, the limiting blocks 11217 enter the receding grooves 12216, and each fastening protrusion 12217a is located in the corresponding limiting groove 11217 c. The latch 12217 and the stopper 11217 limit the displacement of the latch 12217a in a direction parallel to the first engagement surface 112 a. The limiting groove 11217c has a limiting side wall 11217d, the limiting side wall 11217d is parallel to the first engagement surface 112a, the latching protrusion 12217a has a latching surface 12217b, the latching surface 12217b is parallel to the second engagement surface 122a, and when the latching protrusion 12217a is located in the corresponding limiting groove 11217c, the latching surface 12217b abuts against the limiting side wall 11217d to limit the displacement of the latching protrusion 12217a in the direction perpendicular to the first engagement surface 112 a.

The following description is made of the structure of the first latching portion 1121 shown in the area C 'in fig. 15 and the second latching portion 1221 shown in the area D' in fig. 16, with reference to fig. 20 and 21, which are a sectional view taken along the line G-G 'in fig. 15 and a sectional view taken along the line H-H' in fig. 16; as shown in the figure, the second fastening portion 1221 shown in the area D' in fig. 16 includes a second groove 12218 and a limiting block 12219, the second groove 12218 has an upper side wall 12218a and a lower side wall 12218b, the upper side wall 12218a corresponds to the second upper surface 122c, the lower side wall 12218b corresponds to the second lower surface 122D, and the upper side wall 12218a and the lower side wall 12218b respectively have limiting notches 12218c, in this embodiment, the limiting notch 12218c located on the upper side wall 12218a is opposite to the limiting notch 12218c located on the lower side wall 12218 b. The stopper 12219 is disposed in the second groove 12218, the stopper 12219 has an upper stopper surface 12219a and a lower stopper surface 12219b, the upper stopper surface 12219a and the lower stopper surface 12219b respectively have at least one stopper groove 12219c, and each stopper groove 12219c is exposed from the corresponding stopper notch 12218 c.

The first locking portion 1121 shown in the area C' in fig. 15 has an offset groove 11218 and two locking elements 11219, the offset groove 11218 has an upper offset sidewall 11218a and a lower offset sidewall 11218b, the two locking elements 11219 are disposed on the second engagement surface 122a and respectively located on the upper offset sidewall 11218a and the lower offset sidewall 11218b, and each locking element 11219 has at least one locking protrusion 11219 a. Fig. 22 is a combined cross-sectional view of a first terminal assembly and a second terminal assembly according to a second embodiment of the present application; as shown in the figure, when the second latching portion 1221 shown in the area D 'in fig. 16 is connected to the first latching portion 1121 shown in the area C' in fig. 15, the two latching members 11219 enter the corresponding limiting notches 12218C, the limiting block 12219 enters the relief groove 11218, and each latching protrusion 11219a is located in the corresponding limiting groove 12219C. The locking member 11219 and the stopper 12219 limit the displacement of the locking protrusion 11219a in a direction parallel to the first engagement surface 112 a. The limiting groove 12219c has a limiting sidewall 12219d, the limiting sidewall 12219d is parallel to the second engagement surface 122a, the latching protrusion 11219a has a latching surface 11219b, the latching surface 11219b is parallel to the first engagement surface 112a, and when the latching protrusion 11219a is located in the corresponding limiting groove 12219c, the latching surface 11219b abuts against the limiting sidewall 12219d to limit the displacement of the latching protrusion 11219a in a direction perpendicular to the first engagement surface 112 a.

In this embodiment, the first latching portion 1121 shown in the area C in fig. 15 may be disposed side by side with the first latching portion 1121 shown in the area C' in fig. 15, as the middle portion in fig. 15. The position of the second latching portion 1221 is opposite to the position of the first latching portion 1121, and the second latching portion 1221 shown in the area D in fig. 16 may be arranged side by side with the second latching portion 1221 shown in the area D' in fig. 16. Of course, in this embodiment, the first latching portion 1121 shown in the area C in fig. 15 may be provided separately from the first latching portion 1121 shown in the area C 'in fig. 15, and the second latching portion 1221 shown in the area D in fig. 16 may be provided separately from the second latching portion 1221 shown in the area D' in fig. 16. The first insulating base 112 and the second insulating base 122 have the same structure, so that the first insulating base 112 and the second insulating base 122 can be manufactured by using the same set of mold, development of the mold is reduced, production cost is reduced, and production efficiency is improved.

Referring to fig. 17 and 21, one end of the limiting groove 11217C of the first fastening portion 1121, which is shown in the area C in fig. 15 and is far from the first engaging surface 112a, penetrates through the first bottom surface 112b, the first fastening portion 1121 of the structure shown in the area C' in fig. 15 further has a plurality of demolding grooves 11215, and the plurality of demolding grooves 11215 penetrate through the surface of the avoiding groove 11218, which is parallel to the first engaging surface 112a, and the first bottom surface 112b, and respectively correspond to the plurality of fastening protrusions 11219 a; similarly, referring to fig. 18 and 20 again, the second locking portion 1221 shown in the area D in fig. 16 further has a plurality of mold stripping grooves 12215, a plurality of mold stripping grooves 12215 penetrate through the relief groove 12216 and the second bottom surface 122b parallel to the second engagement surface 122a, and respectively correspond to the plurality of locking protrusions 12217a, and an end of the limiting groove 12219c of the second locking portion 1221 shown in the area D' in fig. 16, which is far away from the second engagement surface 122a, penetrates through the second bottom surface 122 b. The above-mentioned limiting

grooves

11217c, 12219c and the

demolding grooves

11215, 12215 penetrating the bottom surface are all manufactured by mold forming, and the first insulating base 112 and the second insulating base 122 of the embodiment can form the second insulating base 122 having the plurality of snap protrusions 12217a and the first insulating base 112 having the plurality of snap protrusions 11219a through a simple two-layer mold.

The first terminal assembly 11 of this embodiment also has the first auxiliary positioning portion and the first locking portion of the first embodiment, and the second terminal assembly 12 of this embodiment also has the second auxiliary positioning portion and the second locking portion of the first embodiment, which are not described herein again.

In summary, the present application provides a connector, in which a first terminal assembly and a second terminal assembly are connected in a multi-directional interference manner through a first locking portion and a second locking portion, so as to prevent the first terminal assembly and the second terminal assembly from being displaced, and provide stable connectivity between the first terminal assembly and the second terminal assembly, the first terminal assembly and the second terminal assembly are not easily separated in a repeatedly plugging and unplugging usage environment or in a poor usage environment, so that gaps between a plurality of first terminals of the first terminal assembly and a plurality of second terminals of the second terminal assembly are maintained to be constant, and the problem of poor contact of the connector is avoided. Simultaneously the first terminal subassembly of this application and second terminal subassembly's structure is the same, so first terminal subassembly and second terminal subassembly see through the preparation of same set of mould to first terminal subassembly and second terminal subassembly as long as see through simple two layers of mould preparation can, simplify mould development and mould structure, reduction in production cost by a wide margin, and promote production efficiency.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

Claims

1. A connector, comprising: a first terminal assembly comprising: the first insulating seat is provided with a first joint surface and a first clamping part, the first clamping part is positioned on the first joint surface, the first clamping part is provided with a first clamping groove, and the first clamping groove is provided with at least one positioning groove; the first terminals are arranged on the first insulating seat and are far away from the first joint surface, and the extending direction of the first terminals is parallel to the first joint surface; a second terminal assembly comprising: the second insulating seat is provided with a second joint surface and a second buckling part, the second buckling part is positioned on the second joint surface, the second buckling part is provided with a positioning column and at least two positioning convex blocks, the positioning column is arranged on the second joint surface, and the at least two positioning convex blocks are respectively arranged on the positioning column; the second terminals are arranged on the second insulating seat and are far away from the second joint surface, and the extending directions of the second terminals are parallel to the second joint surface; the first terminal assembly is arranged on the second terminal assembly, the first buckling part is connected with the second buckling part, the first joint surface is adjacent to the second joint surface, the positioning column enters the first clamping groove, and at least two positioning lugs are respectively positioned in the corresponding positioning grooves to prevent the first insulating seat and the second insulating seat from displacing in the direction perpendicular to the first joint surface and in the direction parallel to the first joint surface.

2. The connector of claim 1, wherein the first card slot has an upper catch wall and a lower catch wall, the upper catch wall and the lower catch wall each having the positioning slot; the positioning column is provided with an upper positioning surface and a lower positioning surface, and the positioning convex blocks are respectively arranged on the upper positioning surface and the lower positioning surface.

3. The connector of claim 2, wherein the positioning sidewall of the positioning groove adjacent to the first engagement surface is parallel to the first engagement surface, and the abutment surface of the positioning projection adjacent to the second engagement surface is parallel to the second engagement surface, the abutment surface abutting against the positioning sidewall when the positioning projection is located in the corresponding positioning groove.

4. The connector of claim 2, wherein the first insulator has a first bottom surface opposite the first engagement surface, and an end of the positioning groove remote from the first engagement surface extends through the first bottom surface.

5. The connector of claim 2, wherein the second housing has a second bottom surface and a plurality of stripping grooves, the second bottom surface is opposite to the second engagement surface, and the plurality of stripping grooves penetrate the second engagement surface and the second bottom surface and correspond to the plurality of positioning protrusions, respectively.

6. The connector of claim 1, wherein the second latch portion has a second latch slot having an upper latch wall and a lower latch wall, the upper latch wall and the lower latch wall each having at least one detent slot; the first buckling part is provided with a positioning column and at least two positioning convex blocks, the positioning column of the first buckling part is arranged on the first joint surface, the positioning column of the first buckling part is provided with an upper positioning surface and a lower positioning surface, the at least two positioning convex blocks of the first buckling part are respectively arranged on the upper positioning surface and the lower positioning surface, when the first buckling part is connected with the second buckling part, the positioning column of the first buckling part enters the second clamping groove, and the at least two positioning convex blocks of the first buckling part are respectively positioned in the corresponding positioning grooves of the second clamping groove.

7. The connector of claim 6, wherein a positioning sidewall of the positioning groove of the second card slot adjacent to the second engagement surface is parallel to the second engagement surface, an abutting surface of the positioning protrusion of the first card-engaging portion adjacent to the first engagement surface is parallel to the first engagement surface, and the abutting surface abuts against the positioning sidewall when the positioning protrusion of the first card-engaging portion is located in the positioning groove of the corresponding second card slot.

8. The connector of claim 6, wherein the second housing has a second bottom surface opposite the second mating surface, and an end of the positioning slot of the second card slot remote from the second mating surface extends through the second bottom surface.

9. The connector of claim 6, wherein the first insulating base has a first bottom surface and a plurality of demolding grooves, the first bottom surface is opposite to the first joint surface, the plurality of demolding grooves penetrate through the first joint surface and the first bottom surface and respectively correspond to the plurality of positioning protrusions of the first fastening portion.

10. The connector according to claim 1, wherein the first insulating housing has a first pilot portion, the first pilot portion being located at the first engaging surface, the second insulating housing has a second pilot portion, the second pilot portion being located at the second engaging surface, and the first pilot portion is connected to the second pilot portion.

11. The connector according to claim 10, wherein the first auxiliary positioning portion includes an auxiliary positioning post or an auxiliary positioning hole, and the second auxiliary positioning portion includes an auxiliary positioning hole or an auxiliary positioning post corresponding to the first auxiliary positioning portion.

12. The connector of claim 1, wherein the first housing has a first locking portion at one end thereof, the second housing has a second locking portion at one end thereof, and the first locking portion is connected to the second locking portion.

13. The connector of claim 12, wherein the first latching portion includes a latching member projecting from the first engagement surface, the latching member having a latching protrusion, the second latching portion includes a latching groove located on a side surface of the second insulating base, and the latching protrusion is engaged with the latching groove.

14. The connector of claim 13, wherein said latch surface of said latch projection adjacent said first engagement surface is parallel to said first engagement surface, said latch side wall of said latch recess adjacent said second engagement surface is parallel to said second engagement surface, and said latch surface abuts said latch side wall.

15. The connector of claim 13, wherein the second locking portion includes a locking member protruding from the second engagement surface, the locking member having a locking protrusion, the first locking portion includes a locking groove located on a side surface of the first insulating base, and the locking protrusion is engaged with the locking groove.

16. The connector of claim 15, wherein said latch surface of said latch projection adjacent said second engagement surface is parallel to said second engagement surface, said latch side wall of said latch recess adjacent said first engagement surface is parallel to said first engagement surface, and said latch surface abuts said latch side wall.

17. The connector of claim 1, further comprising a housing, said housing receiving said first terminal assembly and said second terminal assembly, said housing having two opposing receptacles through which a plurality of said first terminals and a plurality of said second terminals are disposed.

18. A connector, comprising:

a first terminal assembly comprising:

the first insulating seat is provided with a first joint surface and a first buckling part, the first buckling part is positioned on the first joint surface, the first buckling part is provided with a first groove and a limiting block, the first groove is provided with a limiting notch, the limiting block is arranged in the first groove, the limiting block is provided with at least one limiting groove, and each limiting groove is exposed out of the corresponding limiting notch; and

a plurality of first terminals disposed on the first insulating base and far away from the first bonding surface, wherein an extending direction of the first terminals is parallel to the first bonding surface;

a second terminal assembly comprising:

the second insulating seat is provided with a second joint surface and a second buckling part, the second buckling part is positioned on the second joint surface, the second buckling part is provided with a yielding groove and two buckling pieces, the two buckling pieces are arranged on the second joint surface, and each buckling piece is provided with at least one buckling lug; and

a plurality of second terminals disposed on the second insulating base and distant from the second bonding surface, wherein the extending direction of the plurality of second terminals is parallel to the second bonding surface;

wherein first terminal subassembly set up in second terminal subassembly, first buckle portion with second buckle portion connects, first composition surface with the second composition surface adjoins, two buckle spare gets into respectively and corresponds spacing breach, the stopper gets into the groove of stepping down, each buckle spare the buckle lug is located the correspondence in the spacing groove to prevent first insulator seat with the second insulator seat is in the perpendicular to the direction of first composition surface and be on a parallel with produce the displacement in the direction of first composition surface.

19. The connector of claim 18, wherein the first recess has an upper sidewall and a lower sidewall, the upper and lower sidewalls having the retention notches, respectively, the retention block having an upper retention surface and a lower retention surface, the upper and lower retention surfaces having the retention grooves, respectively; the yielding groove is provided with an upper yielding side wall and a lower yielding side wall, and the two buckling pieces are respectively positioned on the upper yielding side wall and the lower yielding side wall.

20. The connector of claim 19, wherein the position-limiting side walls of the position-limiting grooves adjacent to the first engagement surface are parallel to the first engagement surface, the latching surfaces of the latching projections adjacent to the second engagement surface are parallel to the second engagement surface, and the latching surfaces abut against the position-limiting side walls when the latching projections are located in the corresponding position-limiting grooves.

21. The connector of claim 19, wherein the first insulating base has a first bottom surface opposite to the first engaging surface, and an end of the limiting groove away from the first engaging surface extends through the first bottom surface.

22. The connector of claim 19, wherein the second housing has a second bottom surface and a plurality of demolding grooves, the second bottom surface is opposite to the second engagement surface, and the plurality of demolding grooves extend through a surface of the relief groove parallel to the second engagement surface and the second bottom surface and respectively correspond to the plurality of snap protrusions.

23. The connector of claim 18, wherein the second latching portion has a second groove and a stop, the second groove has an upper sidewall and a lower sidewall, the upper sidewall and the lower sidewall of the second groove each have a stop notch, the stop of the second latching portion is disposed in the second groove, the stop of the second latching portion has an upper stop surface and a lower stop surface, the upper stop surface and the lower stop surface of the second latching portion each have at least one stop slot, each stop slot of the second latching portion is exposed from the stop notch of the corresponding second groove; the first buckling part is provided with a yielding groove and two buckling pieces, the yielding groove of the first buckling part is provided with an upper yielding side wall and a lower yielding side wall, the two buckling pieces of the first buckling part are arranged on the second joint surface and are respectively positioned on the upper yielding side wall and the lower yielding side wall of the first buckling part, each buckling piece of the first buckling part is provided with at least one buckling lug, when the first buckling part is connected with the second buckling part, the two buckling pieces of the first buckling part respectively enter the corresponding limiting notches of the second groove, the limiting blocks of the second buckling part enter the yielding groove of the first buckling part, and the buckling lugs of the first buckling part are positioned in the corresponding limiting grooves of the second buckling part.

24. The connector of claim 23, wherein a position-limiting sidewall of the position-limiting groove of the second engaging portion adjacent to the second engaging surface is parallel to the second engaging surface, wherein the engaging protrusion of the first engaging portion adjacent to the engaging surface is parallel to the first engaging surface, and wherein the engaging surface abuts against the position-limiting sidewall when the engaging protrusion of the first engaging portion is located in the position-limiting groove of the second engaging portion.

25. The connector of claim 23, wherein the second housing has a second bottom surface opposite to the second engagement surface, and an end of the limiting groove of the second engaging portion away from the second engagement surface extends through the second bottom surface.

26. The connector of claim 23, wherein the first insulating base has a first bottom surface and a plurality of demolding grooves, the first bottom surface is opposite to the first engaging surface, and the plurality of demolding grooves penetrate through a surface of the relief groove of the first locking portion, which is parallel to the first engaging surface, and the first bottom surface, and correspond to the locking protrusions of the plurality of first locking portions, respectively.

27. The connector according to claim 18, wherein the first insulating housing has a first pilot portion, the first pilot portion being located at the first engaging surface, the second insulating housing has a second pilot portion, the second pilot portion being located at the second engaging surface, and the first pilot portion is connected to the second pilot portion.

28. The connector according to claim 27, wherein the first auxiliary positioning portion includes auxiliary positioning posts or auxiliary positioning holes, and the second auxiliary positioning portion includes auxiliary positioning holes or auxiliary positioning posts corresponding to the first auxiliary positioning portion.

29. The connector of claim 18, wherein the first housing has a first locking portion at one end thereof, the second housing has a second locking portion at one end thereof, and the first locking portion is connected to the second locking portion.

30. The connector of claim 29, wherein the first latching portion includes a latching member projecting from the first engagement surface, the latching member having a latching protrusion, the second latching portion includes a latching groove located on a side surface of the second insulating base, and the latching protrusion is engaged with the latching groove.

31. The connector of claim 30, wherein said latch surface of said latch projection adjacent said first engagement surface is parallel to said first engagement surface, said latch side wall of said latch recess adjacent said second engagement surface is parallel to said second engagement surface, and said latch surface abuts said latch side wall.

32. The connector of claim 30, wherein the second locking portion includes a locking member protruding from the second engagement surface, the locking member having a locking protrusion, the first locking portion includes a locking groove located on a side surface of the first insulating base, and the locking protrusion is engaged with the locking groove.

33. The connector of claim 32, wherein said latch surface of said latch projection adjacent said second engagement surface is parallel to said second engagement surface, said latch side wall of said latch recess adjacent said first engagement surface is parallel to said first engagement surface, and said latch surface abuts said latch side wall.

34. The connector of claim 18, further comprising a housing receiving said first terminal assembly and said second terminal assembly, said housing having two opposing receptacles through which a plurality of said first terminals and a plurality of said second terminals are disposed.