CN210156592U

CN210156592U - First connector, second connector and connector assembly

Info

Publication number: CN210156592U
Application number: CN201921488179.4U
Authority: CN
Inventors: 陈宏基; 王开德
Original assignee: Dongguan Xuntao Electronic Co Ltd
Current assignee: Dongguan Xuntao Electronic Co Ltd
Priority date: 2019-09-07
Filing date: 2019-09-07
Publication date: 2020-03-17
Anticipated expiration: 2029-09-07

Abstract

A first connector comprises a first insulating body, a first terminal module and a first shell covering the first insulating body, wherein the first connector is provided with a hollow groove for guiding a second connector when the second connector is inserted. The utility model discloses still relate to a second connector, it includes second insulator and second terminal module, second insulator includes the main part and certainly the convex guide in both sides of main part is protruding, guide bellied top surface with the top surface of main part flushes or is less than the top surface of main part, guide in protruding being used for inserting the dead slot of first connector. The utility model discloses still relate to the connector assembly who has above-mentioned first connector and above-mentioned second connector, wherein guide protruding and dead slot as both guide structures when pegging graft the cooperation, improved the butt joint precision.

Description

First connector, second connector and connector assembly

Technical Field

The utility model relates to a first connector, second connector and connector assembly can be applied to high-speed connector technical field.

Background

Existing connector assemblies typically include a first connector and a second connector that mate with each other, where the first connector includes a dielectric body and the second connector includes a metal housing. In order to achieve the insertion guiding and positioning of the first connector and the second connector, the insulation body of the first connector is designed to be wider, so that positioning grooves are formed on two sides of the insulation body to clamp two side surfaces of the metal shell of the second connector. However, this design makes the insulative body of the first connector wider, which is disadvantageous for size reduction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a first connector, second connector and connector components with butt joint guide structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a first connector comprises a first insulating body, a first terminal module and a first shell covering the first insulating body, wherein the first connector is provided with two empty grooves for guiding a second connector when the second connector is inserted, and the two empty grooves are arranged correspondingly.

As a further improved technical solution of the present invention, the empty groove is formed by the first insulating body; or

The empty slot is formed by the first shell; or

The empty groove is formed by the first insulating body and the first shell together.

As a further improved technical scheme of the utility model, the dead slot is located corner department about first insulator's upper end, the dead slot sets up first insulator's top surface or side.

As a further improved technical scheme of the utility model, the dead slot is located corner department about first insulator's upper end, the dead slot is L shape and sets up first insulator's top surface and side.

As a further improved technical solution of the present invention, the first insulating body includes a first top wall, and the first top wall is provided with two bumps near two sides and an accommodating space located between the two bumps; the first shell comprises an upper shell covered on the first top wall, the upper shell comprises a locking plate, the accommodating space is located between the first top wall and the locking plate, and the locking plate is provided with at least one locking hole used for being locked with the second connector.

As a further improved technical solution of the present invention, the upper shell corresponds to the top surface of the empty slot and the upper shell corresponds to the top surface of the accommodating space is approximately flush.

As a further improved technical solution of the present invention, the bump is located the accommodating space and between the empty slots, the upper shell covers on the bump and supported by the bump.

The utility model discloses still relate to a second connector, it includes second insulator and second terminal module, second insulator includes the main part and certainly the convex guide in both sides of main part is protruding, guide bellied top surface with the top surface of main part flushes or is less than the top surface of main part, guide in protruding being used for inserting the dead slot of first connector.

As a further improved technical solution of the present invention, the second insulating body includes a protrusion the tongue plate and the protrusion of the main body portion is located the extension portion above the tongue plate, the extension portion in the vertical direction with the tongue plate has an overlapping portion.

As a further improved technical proposal of the utility model, the guide bulge is L-shaped; the guide protrusion is integrally extended from the main body portion or the guide protrusion and the main body portion are two different parts assembled together.

The utility model discloses still relate to a connector assembly, it includes aforementioned first connector and aforementioned second connector, wherein first connector with the second connector cooperatees.

Compared with the prior art, the first connector of the utility model is provided with the empty groove for guiding the second connector when the second connector is plugged; correspondingly, the second connector of the utility model is provided with a guide projection for inserting into the empty slot of the first connector, the top surface of the guide projection is flush with the top surface of the main body part or lower than the top surface of the main body part, so that the space is saved, and the guide projection can be matched with the empty slot; furthermore, the present invention relates to a connector assembly having the first connector and the second connector.

Drawings

Fig. 1 is a perspective view of the connector assembly of the present invention, wherein the first connector is mounted on a circuit board.

Fig. 2 is a partially exploded perspective view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is an assembled view of fig. 3.

Fig. 5 is a schematic sectional view taken along line a-a in fig. 1.

Fig. 6 is an exploded view of the first connector and the circuit board of fig. 2.

Fig. 7 is a front view of the first connector of fig. 2.

Fig. 8 is a partially exploded perspective view of the first connector.

Fig. 9 is a further exploded perspective view of fig. 8.

Fig. 10 is an exploded perspective view of fig. 8 from another angle.

Fig. 11 is an exploded perspective view from another angle of fig. 9.

Fig. 12 is a top view of the first terminal unit of fig. 11.

Fig. 13 is a top view of the insulator block of fig. 11.

Fig. 14 is a perspective view of the second connector of fig. 2.

Fig. 15 is a partially exploded perspective view of fig. 14.

Fig. 16 is a front view of fig. 14.

Fig. 17 is a schematic view showing the state in which the locking tab is engaged with the pull-tab and the locking portion is before unlocking.

Fig. 18 is a schematic view of the tab of fig. 17 mated with a pull tab with the catch portion unlocked.

Detailed Description

Referring to fig. 1 to 5, the present invention discloses a connector assembly, which includes a first connector 100 and a second connector 200 mated with the first connector 100. In the illustrated embodiment of the present invention, the first connector 100 is a board end connector, which is configured to be mounted on the circuit board 101; the second connector 200 is a cable connector for connecting with a cable 201.

Referring to fig. 6 to 11, the first connector 100 includes a first insulating body 1, a first terminal module 2 mounted on the first insulating body 1, and a first housing 3 covering the periphery of the first insulating body 1. The first housing 3 is made of a metal material.

The first insulating body 1 includes a mating surface 14 and a mounting surface 15 for mounting the first connector 100 on the circuit board 101, wherein the mating surface 14 has a slot 141 formed thereon for mating with the second connector 200, and the mounting surface 15 has a mounting groove 151 formed thereon for receiving the first terminal module 2.

From a structural point of view, the first insulating body 1 generally includes a first top wall 11, a first bottom wall 12, and two first side walls 13 connecting the first top wall 11 and the first bottom wall 12. The insertion groove 141 is defined by the first top wall 11, the first bottom wall 12 and the two first side walls 13. A plurality of convex strips 121 arranged at intervals are arranged on the inner side of the first top wall 11 and the inner side of the first bottom wall 12, and a terminal groove 122 is formed between two adjacent convex strips 121. The first top wall 11 is further provided with two protrusions 112 near two sides and an accommodating space 113 between the two protrusions 112. Each of the projections 112 is provided with a notch 1121 at the front end surface. In the illustrated embodiment of the present invention, the notch 1121 is in the shape of an inverted T including a first notch 1122 at an upper end and a second notch 1123 at a lower end, wherein the width of the first notch 1122 is less than the width of the second notch 1123. In order to fix the first terminal module 2, the first top wall 11 and the first bottom wall 12 are further respectively provided with a first engaging groove 115 and a second engaging groove 123. In addition, two of the first side walls 13 are respectively provided with a holding groove 131 which is located at the outer side and is used for matching with the first housing 3.

The first terminal module 2 includes a first terminal unit 21, a second terminal unit 22, and a conductive plastic 23 clamped between the first terminal unit 21 and the second terminal unit 22. Referring to fig. 8 to 11, in the embodiment of the present invention, the first terminal unit 21 and the second terminal unit 22 are symmetrically disposed on the upper and lower sides of the conductive plastic 23. Preferably, the first terminal unit 21 and the second terminal unit 22 may be made of the same component, and when assembling, the components are turned over by 180 degrees.

The first terminal unit 21 is provided with a first insulator 211 and a plurality of first terminals 212 fixed to the first insulator 211. In an embodiment of the present invention, the first terminal 212 is insert-molded on the first insulator 211. The first insulator 211 is provided with a first latching block 2111 for cooperating with the first latching groove 115. In terms of structure, the first terminal 212 includes a first fixing portion (not shown) fixed on the first insulator 211, a first contact portion 2122 extending forward from the first fixing portion, and a first welding portion 2123 bent backward from the first fixing portion. Functionally, the first terminal 212 includes a signal terminal and a ground terminal, wherein two adjacent signal terminals and ground terminals form a set, and the first terminal 212 includes a plurality of sets of such signal terminals and ground terminals.

Similarly, the second terminal unit 22 is provided with a second insulator 221 and a plurality of second terminals 222 fixed to the second insulator 221. In one embodiment of the present invention, the second terminal 222 is insert-molded on the second insulator 221. The second insulator 221 is provided with a second latch (not shown) for engaging with the second latch groove 123. In terms of structure, the second terminal 222 includes a second fixing portion (not shown) fixed to the second insulator 221, a second contact portion 2222 extending forward from the second fixing portion, and a second soldering portion 2223 extending backward from the second fixing portion. Functionally, the second terminals 222 include signal terminals and ground terminals, wherein two adjacent signal terminals and ground terminals form a set, and the second terminals 222 include multiple sets of such signal terminals and ground terminals.

Referring to fig. 9 to 13, the conductive plastic 23 has a plurality of ribs 231 on the upper and lower surfaces thereof, and the inner surfaces of the first insulator 211 and the second insulator 221 have grooves 24 respectively matching with the ribs 231. In addition, the conductive plastic 23, the first insulator 211 and the second insulator 221 are further provided with a plurality of engaging arms 25 which are engaged with each other to prevent the conductive plastic 23 from being withdrawn backwards after being inserted. In the illustrated embodiment of the present invention, the conductive plastic 23 is provided with a first engaging arm 232, the first insulator 211 and the second insulator 221 are respectively provided with a second engaging arm 2112 and a third engaging arm 2211, and the second engaging arm 2112 and the third engaging arm 2211 are respectively engaged with the first engaging arm 232. It should be noted that, in the illustrated embodiment of the present invention, the conductive plastic 23 is separated from the first terminal 212 and the second terminal 222 by a layer of plastic, and the rib 231 of the conductive plastic 23 does not directly contact with the first terminal 212 or the second terminal 222. Referring to fig. 12, the position of the groove 24 corresponds to the position of the ground terminal (G) in the first terminal 212 and the second terminal 222.

When the first terminal module 2 is completely inserted into the mounting groove 151 from back to front, the first latching block 2111 and the second latching block are respectively retained in the first latching groove 115 and the second latching groove 123, so as to prevent the first terminal module 2 from being withdrawn backwards. At this time, the first contact portion 2122 and the second contact portion 2222 are respectively located in the corresponding terminal grooves 122 to protect the terminals. In addition, the first contact portion 2122 and the second contact portion 2222 extend toward each other and each protrude into the slot 141 to mate with the second connector 200.

The first housing 3 is substantially shaped like a frame and is sleeved on the first insulating body 1. The first housing 3 includes an upper shell 31 covered on the first top wall 11, a lower shell 32 covered on the first bottom wall 12, and two side shells 33 connecting the upper shell 31 and the lower shell 32 and respectively covered on the two first side walls 13, wherein the upper shell 31 is covered on the projection 112 and supported by the projection 112. In an embodiment of the present invention, the upper case 31, the lower case 32, and the side case 33 may be integrally formed.

The first connector 100 is provided with a hollow 114 for guiding the second connector 200 when the second connector 200 is inserted. The empty slot 114 is used to match with the second connector 200 to realize the positioning when the two are plugged. Referring to fig. 7, in the illustrated embodiment of the present invention, the empty groove 114 is formed by the first insulating body 1 and the first housing 3. Of course, in other embodiments, the empty groove 114 may be formed by the first insulating body 1 or the first housing 3. In the illustrated embodiment of the present invention, the empty groove 114 is L-shaped and is disposed on the top surface and the side surface of the first insulating body 1. The empty slots 114 are located at the left and right corners of the upper end of the first insulating body 1 and are located outside the corresponding bumps 112. Of course, in other embodiments, the empty groove 114 may be disposed on the top surface or the side surface of the first insulating body 1. The two empty slots 114 are correspondingly disposed and respectively located at the left and right sides of the first connector 100.

In addition, the upper case 31 is provided with a latch plate 311 covering the receiving space 113, and the latch plate 311 is provided with at least one latch hole 3111. The top surface 34 of the upper shell 31 corresponding to the empty slot 114 and the top surface 35 of the upper shell 31 corresponding to the receiving space 113 are substantially flush, so that the height of the first connector 100 can be reduced. In addition, the receiving space 113 overlaps the first contact portion 2122 and the second contact portion 2222 in the vertical direction, and is provided so as to reduce the front-rear length of the first connector 100. The upper case 31 further includes T-shaped bent portions 3112 bent downward from two sides of the locking plate 311, wherein the T-shaped bent portions 3112 are held in the corresponding notches 1121 to prevent the first housing 3 from being separated from the first insulating body 1 in the direction X, Y (horizontal direction). The side cases 33 are respectively provided with tabs 331 that are snapped into the catching grooves 131 to prevent the first housing 3 from being detached from the first insulating body 1 in the Z direction (vertical direction).

Referring to fig. 14 to 16, the second connector 200 includes a second insulating housing 4, a second terminal module 5 fixed on the second insulating housing 4, a latch piece 6 mounted on the second insulating housing 4, and a pull tab 7 connected to the latch piece 6. The pull tab 7 is a flexible pull strap in the illustrated embodiment of the invention.

In the illustrated embodiment of the present invention, the second insulating body 4 includes a main body portion 41, a tongue plate 42 protruding from the main body portion 41, guide protrusions 43 protruding from two sides of the main body portion 41, and an extension portion 44 protruding from the main body portion 41 and located above the tongue plate 42. In the illustrated embodiment of the present invention, the tongue plate 42 is formed by a circuit board; the guide protrusion 43 and the extension portion 44 are integrally extended from the main body portion 41; the guide protrusion 43 is L-shaped to fit the L-shaped recess 114. The top surface 431 of the guide protrusion 43 is flush with the top surface 411 of the body portion 41 or lower than the top surface 411 of the body portion 41 so that the guide protrusion 43 can be fitted into the empty slot 114. Of course, in other embodiments, the guide protrusion 43 may have other shapes, and may be two different parts from the main body 41, but assembled together. For example, the guide projection 43 is a metal member that is fixed to or insert-molded in the body portion 41 by a snap groove.

In the embodiment of the present invention, the second terminal modules 5 are flat and distributed on the upper and lower surfaces of the tongue plate 42, wherein the combination of the second terminal modules 5 and the tongue plate 42 may be a circuit board with a contact piece or a gold finger (PIN), and the second terminal modules 5 are electrically connected to the cable 201. The end of the extending portion 44 is provided with a guiding inclined surface 441 for guiding the extending portion 44 to be inserted into the receiving space 113 and guiding angles 442 located at two sides of the extending portion 44. The L-shaped guide protrusion 43 is inserted into the L-shaped hollow groove 114.

The extension 44 projects forward from the main body 41 to save space and reduce the front-rear length of the second connector 200. In addition, the extension 44 has an overlapping portion with the tongue plate 42 in the vertical direction, so as to save space and reduce the front-rear length of the second connector 200. In addition, the top surface of the second insulating housing 4 is substantially flat, so as to reduce the height of the second connector 200.

The locking tab 6 is secured to the extension 44. The top surfaces of the locking pieces 6 are substantially flush with the top surface of the body 41 to reduce the height of the second connector 200. In one embodiment of the present invention, the locking piece 6 is insert-molded on the extension 44. The locking piece 6 includes a locking portion 64 that protrudes upward. When the second connector 200 is mated with the first connector 100, the extension 44 is inserted into the receiving space 113; at this time, the locking portions 64 are held in the locking holes 3111 to prevent the second connector 200 from loosening from the first connector 100.

In the illustrated embodiment of the present invention, the locking piece 6 is made of a metal plate to increase the structural strength and reduce the overall height of the second connector 200. Referring to fig. 15, in the illustrated embodiment of the present invention, the locking strip 6 includes an upper plate 61 and a lower plate 62, wherein the upper plate 61 is provided with an upper through hole 611 and a first guiding surface 612 located at the rear end of the upper through hole 611, and the first guiding surface 612 is an inclined surface inclined toward the lower plate 62; the lower plate 62 is provided with a lower perforation 621, a second guide surface 622 located beside the lower perforation 621, and two holding portions 623 located at two sides; in the illustrated embodiment of the present invention, the lower plate 62 is provided with a protrusion 63, and the second guide surface 622 is located on the protrusion 63. A guide groove 624 for guiding the pull tab 7 is formed between the two holding portions 623.

The pull tab 7 is provided with a hook 71 passing through the upper perforation 611 and the lower perforation 621. The upper perforation 611 and the lower perforation 621 at least partially overlap in a vertical direction to increase the pulling force of the tab 7. As shown in fig. 5 and 17, when the locking portion 64 is locked to the locking hole 3111 (i.e., the locking portion 64 is in a state before unlocking), the upper plate 61 and the lower plate 62 are substantially parallel to each other, and the locking portion 64 is at a high position, so that the locking portion can be locked to the locking hole 3111.

As shown in fig. 18, when the pull tab 7 is pulled horizontally backward in the direction of the arrow, a downward component force is generated in the vertical direction by the cooperation of the hook portion 71 and the first guide surface 612, so that the upper plate 61 tilts downward in the direction of the arrow, and the position of the locking portion 64 is lowered to unlock the locking portion 64 from the locking hole 3111, that is, the second connector 200 can be pulled out from the first connector 100 by applying a horizontal pulling force to the pull tab 7.

It should be noted that the terms "first", "second" and "third" used in the present invention are only used for distinguishing the names of the elements, and do not have any logical meaning.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A first connector (100) comprising a first insulating body (1), a first terminal module (2), and a first housing (3) shielded on the first insulating body (1), characterized in that: the first connector (100) is provided with two empty grooves (114) for guiding the second connector (200) when the second connector (200) is inserted, wherein the two empty grooves (114) are arranged correspondingly.

2. The first connector (100) of claim 1, wherein: the empty slot (114) is formed by the first insulating body (1); or

The empty slot (114) is formed by the first housing (3); or

The empty groove (114) is formed by the first insulating body (1) and the first shell (3) together.

3. The first connector (100) of claim 1, wherein: the empty groove (114) is located at the left and right corners of the upper end of the first insulating body (1), and the empty groove (114) is formed in the top surface or the side surface of the first insulating body (1).

4. The first connector (100) of claim 1, wherein: the empty groove (114) is located at the left and right corners of the upper end of the first insulating body (1), and the empty groove (114) is L-shaped and is arranged on the top surface and the side surface of the first insulating body (1).

5. The first connector (100) of claim 1, wherein: the first insulating body (1) comprises a first top wall (11), wherein the first top wall (11) is provided with two bumps (112) close to two sides and an accommodating space (113) between the two bumps (112); the first shell (3) comprises an upper shell (31) covered on the first top wall (11), the upper shell (31) comprises a locking plate (311), the accommodating space (113) is located between the first top wall (11) and the locking plate (311), and the locking plate (311) is provided with at least one locking hole (3111) for locking with the second connector (200).

6. The first connector (100) of claim 5, wherein: the upper shell (31) corresponds to the top surface (34) of the empty groove (114) and the top surface (35) of the upper shell (31) corresponding to the containing space (113) is approximately flush.

7. The first connector (100) of claim 5, wherein: the lug (112) is positioned between the accommodating space (113) and the empty groove (114), and the upper shell (31) covers the lug (112) and is supported by the lug (112).

8. A second connector (200) comprising a second insulative housing (4) and a second terminal module (5), the second insulative housing (4) comprising a main body portion (41) and guide protrusions (43) protruding from both sides of the main body portion (41), characterized in that: the top surface (431) of the guide projection (43) is flush with the top surface (411) of the main body part (41) or lower than the top surface (411) of the main body part (41), and the guide projection (43) is used for being inserted into the empty groove (114) of the first connector (100).

9. The second connector (200) of claim 8, wherein: the second insulating body (4) comprises a tongue plate (42) protruding out of the main body portion (41) and an extension portion (44) protruding out of the main body portion (41) and located above the tongue plate (42), and the extension portion (44) has an overlapping portion with the tongue plate (42) in the vertical direction.

10. The second connector (200) of claim 8, wherein: the guide projection (43) is L-shaped; the guide protrusion (43) is integrally extended from the main body (41) or the guide protrusion (43) and the main body (41) are two different parts assembled together.

11. A connector assembly, characterized by: comprising a first connector (100) according to any of claims 1 to 7 and a second connector (200) according to any of claims 8 to 10, wherein the first connector (100) is mated with the second connector (200).