CN109037995B

CN109037995B - Electric connector combination

Info

Publication number: CN109037995B
Application number: CN201810734422.XA
Authority: CN
Inventors: 罗国强; 何东明; 林庆其
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2017-12-25
Filing date: 2018-07-06
Publication date: 2020-08-28
Anticipated expiration: 2038-07-06
Also published as: CN109037995A

Abstract

The invention discloses an electric connector combination, comprising: the plug connector is provided with a first body and first terminals accommodated in the first body, a hole slot is arranged between the two first terminals, the first terminals are provided with a first contact arm and a second contact arm which are oppositely arranged, the first contact arm and the second contact arm are respectively provided with a first contact part, a second contact part, a third contact part and a fourth contact part, and a fifth contact part is arranged behind the second contact part; the socket connector is provided with a second body and second terminals accommodated in the second body, one side of the second body convexly extends to a position between the partition and the two second terminals, when the plug connector is butted with the socket connector, the partition is matched with the hole groove, the second terminals are firstly contacted with the first contact part, the second contact part, the third contact part and the fourth contact part and are contacted with the fifth contact part in the continuous inserting process, so that the correct butt joint of the plug connector and the socket connector is ensured, and the first terminals are stably contacted with the second terminals and are not easy to fall off.

Description

Electric connector combination

Technical Field

The present invention relates to an electrical connector assembly, and more particularly, to an electrical connector assembly with good heat dissipation and capable of ensuring the correct insertion of a mating connector and achieving stable contact.

Background

In order to guide the plug connector to be correctly inserted, a narrow groove is usually formed on the partition of the socket connector or a chamfer is arranged at the edge of the receiving cavity of the second body, and a raised strip and a chamfer corresponding to the narrow groove are arranged on the plug connector for matching. Meanwhile, the first terminal of the plug connector usually has a pair of interfaces and a main body part, and two opposite sides of the main body part respectively extend to the direction of the interfaces to form an elastic arm for being butted with the second terminal, however, each elastic arm only has one contact part and can only be contacted with two surfaces of the second terminal, so that the stable contact between the first terminal and the second terminal cannot be ensured in the butting process, and the function of the connector is easily influenced; in addition, since the contact portion is only located near the mating opening and the elastic contact portion is not additionally provided at a position behind the mating opening in the direction close to the main body, a sufficient insertion and extraction force cannot be provided during the mating of the connectors, and the connectors are likely to fall off during use, thereby affecting the use effect.

Therefore, there is a need to design a new electrical connector assembly to overcome the above problems.

Disclosure of Invention

The invention aims to provide an electric connector combination which has good heat dissipation performance and can ensure that a butting connector is correctly inserted and realize stable contact.

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

an electrical connector assembly, comprising: a plug connector having a first body; the first terminals are accommodated in the first body and provided with a main body part, a first contact arm and a second contact arm extend forwards from two opposite sides of the main body part, the first contact arm is provided with a first contact part and a second contact part, the second contact arm is provided with a third contact part and a fourth contact part, a first angle is formed between the first contact part and the second contact part, a second angle is formed between the third contact part and the fourth contact part, and a fifth contact part is arranged behind the second contact part and close to the main body part.

Further, a sixth contact portion is disposed behind the fourth contact portion and in a direction close to the main body portion, and the sixth contact portion is disposed opposite to the fifth contact portion.

Further, the first angle is equal to the second angle is equal to 90 degrees.

Further, the first contact arm has a first base portion, the first base portion extends forward to form a first elastic arm, the first contact portion is located on the first elastic arm, the second contact arm has a third base portion, the third base portion extends forward to form a third elastic arm, the third contact portion is located on the third elastic arm, and a projection of the first elastic arm in the direction of the third elastic arm is only partially overlapped with the third elastic arm.

Further, the first base portion extends to the second contact arm direction to form a second base portion, the second base portion extends forward to form a second elastic arm, the second contact portion is located on the second elastic arm, the third base portion extends to the first contact arm direction to form a fourth base portion, the fourth base portion extends forward to form a fourth elastic arm, the fourth contact portion is located on the fourth elastic arm, and a projection of the second elastic arm in the fourth elastic arm direction is only partially overlapped with the fourth elastic arm.

Further, the second contact portion is located on a second elastic arm extending from the first contact arm, the fifth contact portion is located on a fifth elastic arm extending from the body portion, the fifth elastic arm is located on a side adjacent to the first contact arm, and the length of the fifth elastic arm is greater than that of the second elastic arm.

Further, a socket connector has a second body, the second body has a receiving cavity, the receiving cavity receives a plurality of second terminals and has an opening for the plug connector to insert, and in the process of butting the plug connector and the socket connector, the second terminals are simultaneously contacted with the first contact portion, the second contact portion, the third contact portion and the fourth contact portion.

Furthermore, the accommodating cavity is provided with a plurality of terminal holes far away from the opening, the second terminals are accommodated in the terminal holes, a partition is arranged in the accommodating cavity, and the partition protrudes from one side of the second body to a position between the two second terminals.

Further, the first body is provided with a plurality of accommodating holes, the first terminals are accommodated in the accommodating holes, a hole groove is formed between the two first terminals, and the hole groove is matched with the partition.

Furthermore, a clamping arm is arranged on one side of the first body outside the accommodating hole and is perpendicular to the hole groove.

Furthermore, one side of the second body, which is far away from the partition outside the accommodating cavity, is provided with a fixture block, the fixture block is provided with an inclined plane and two first side surfaces positioned on two sides of the inclined plane, the second terminal is provided with a top surface, a bottom surface and two second side surfaces, the top surface and the bottom surface are oppositely arranged, the area of the second side surfaces is larger than that of the top surface, that of the bottom surface, the second side surfaces are parallel to the first side surfaces, and the fixture arm is matched with the fixture block.

Furthermore, the height of the partition fence close to the terminal hole is larger than that of the partition fence close to the opening.

Further, a virtual central horizontal line is defined and located in the center of the accommodating cavity, and the height of one side, close to the terminal hole, of the partition is lower than that of the central horizontal line.

Meanwhile, the present invention provides another electrical connector assembly, comprising: the plug connector is provided with a first body, the first body is provided with a plurality of accommodating holes, and a hole groove is formed between the two accommodating holes;

the first terminals are accommodated in the accommodating holes; the socket connector is provided with a second body, the second body is provided with an accommodating cavity, the accommodating cavity is provided with a plurality of terminal holes, a plurality of second terminals are accommodated in the terminal holes, a partition is arranged in the accommodating cavity, and the partition protrudes from one side of the second body to a position between the two second terminals; when the plug connector is butted with the socket connector, the hole and the groove are correspondingly matched with the partition fence.

Furthermore, the accommodating cavity is provided with an opening, the terminal hole is far away from the opening, and the height of one side of the partition, which is close to the terminal hole, is greater than the height of one side of the partition, which is close to the opening.

Further, the first terminal has a main body portion, a first contact arm and a second contact arm extend forwards from two opposite sides of the main body portion, the first contact arm has a first contact portion and a second contact portion, the second contact arm has a third contact portion and a fourth contact portion, a first angle is formed between the first contact portion and the second contact portion, a second angle is formed between the third contact portion and the fourth contact portion, and a fifth contact portion is arranged behind the second contact portion and close to the main body portion.

Further, the first angle is equal to the second angle is equal to 90 degrees.

Further, during the mating process of the plug connector and the socket connector, the second terminals are simultaneously contacted with the first contact portion, the second contact portion, the third contact portion and the fourth contact portion.

Compared with the prior art, the chamfer angle is not additionally arranged on the periphery of the accommodating cavity, the original totally-enclosed partition is removed, and the partition is arranged on one side of the accommodating cavity and protrudes to the position between the two second terminals, so that the heat dissipation performance of the socket connector can be improved while materials are saved, and the partition can be matched with the hole groove to achieve the foolproof effect; in addition, the first contact arm, the second contact part, the third contact part and the fourth contact part are respectively arranged for the first contact arm and the second contact arm, and a fifth contact part and a sixth contact part which are symmetrically arranged are arranged behind the second contact part and the fourth contact part and close to the main body part, so that in the process of butting with the second terminal, the first terminal can be in contact with four surfaces of the second terminal and simultaneously provides two sections of insertion and extraction forces, and the stable contact between the first terminal and the second terminal is ensured, and the stable contact is not easy to fall off, so that the use effect is influenced.

[ description of the drawings ]

FIG. 1 is a perspective view of an electrical connector assembly of the present invention;

FIG. 2 is a partially exploded perspective view of the plug connector portion;

fig. 3 is a front view of the first terminal of fig. 2;

fig. 4 is a perspective view of the first terminal mated with the second terminal;

FIG. 5 is a left side view of FIG. 2;

FIG. 6 is a cross-sectional view taken along A-A of FIG. 1;

fig. 7 is a cross-sectional view of the plug connector of fig. 6 mated with the receptacle connector;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;

fig. 9 is a sectional view taken along the direction C-C of fig. 8.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

plug connector 100	Socket connector 200	First body 1	Receiving hole 11
				Hole groove 12	Clamp arm 13	First terminal 2	Main body part 21
First wall 211	Second wall 212	Third wall 213	Fourth wall 214
				Fifth elastic arm 215	Fifth contact part 2151	Sixth elastic arm 216	Sixth contact portion 2161
First contact arm 22	First base 221	Second base 222	First elastic arm 223
				First contact portion 2231	Second elastic arm 224	Second contact part 2241	Second contact arm 23
Third base 231	Fourth base 232	Third elastic arm 233	Third contact 2331
				Fourth elastic arm 234	Fourth contact portion 2341	Second body 3	Accommodating cavity 31
Upper wall 311	Lower wall 312	Side wall 313	Terminal hole 32
				Partition 33	Opening 34	Latch 35	Bevel 351
First side 352	Second terminal 4	Top surface 41	Bottom surface 42
				Second side 43	First angle A	Second angle B	Center horizontal line C

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

Referring to fig. 1 to 9, a main embodiment of an electrical connector assembly of the present invention includes a plug connector 100 and a receptacle connector 200.

Referring to fig. 1 to 9, the plug connector 100 includes a first body 1 and a plurality of first terminals 2. The first body 1 is provided with four receiving holes 11 divided into an upper row and a lower row, each row is provided with two receiving holes 11, a hole groove 12 is arranged between the two receiving holes 11 on the lower row, a clamping arm 13 is arranged on one side of the first body 1, which is far away from the hole groove 12, outside the receiving holes 11, and the clamping arm 13 is perpendicular to the hole groove 12. The plurality of first terminals 2 are accommodated in the accommodating holes 11, the first terminals 2 have a main body 21, and the main body 21 has a first wall 211 and a third wall 213 oppositely arranged and a second wall 212 and a fourth wall 214 connecting the first wall 211 and the third wall 213 oppositely arranged. A first contact arm 22 and a second contact arm 23 respectively extend forwards from the first wall 211 and the third wall 213, a fifth elastic arm 215 and a sixth elastic arm 216 respectively extend forwards from the second wall 212 and the fourth wall 214, a fifth contact part 2151 is arranged on the fifth elastic arm 215, and a sixth contact part 2161 is arranged on the sixth elastic arm 216; the first contact arm 22 has a first base portion 221, the first base portion 221 extends a first elastic arm 223 and a second base portion 222 respectively forward and toward the second contact arm 23, (in the present embodiment, the fifth elastic arm 215 extends from the body portion 21, but is not limited thereto, in other embodiments, the fifth elastic arm 215 may be disposed on the first contact arm 22 or the second contact arm 23 or the body portion 21, the fifth elastic arm 215 may also extend from the first contact arm 22 or the second contact arm 23 or the second base portion 222), the first elastic arm 223 is provided with a first contact portion 2231, the second base portion 222 extends a second elastic arm 224 forward, the second elastic arm 224 has a second contact portion 2241, a first angle a is provided between the first elastic arm 223 and the second elastic arm 224, the fifth elastic arm 215 is located behind the second elastic arm 224, between the main body 21 and the second elastic arm 224 and the length of the fifth elastic arm 215 is greater than that of the second elastic arm 224; the second contact arm 23 has a third base 231, the third base 231 extends a third elastic arm 233 and a fourth base 232 respectively forward and toward the first contact arm 22, (in the present embodiment, the sixth elastic arm 216 extends from the body portion 21, but not limited thereto, in other embodiments, the sixth elastic arm 216 may be disposed on the first contact arm 22 or the second contact arm 23 or the body portion 21, and the sixth elastic arm 216 may also extend from the first contact arm 22 or the second contact arm 23 or the fourth base 232), the third elastic arm 233 is provided with a third contact portion 2331, the fourth base 232 is extended forward with a fourth elastic arm 234, the fourth elastic arm 234 is provided with a fourth contact portion 2341, and a second angle B is formed between the third elastic arm 233 and the fourth elastic arm 234, and the first angle a is equal to the second angle B and equal to 90 degrees. The projection of the first elastic arm 223 in the direction of the third elastic arm 233 is only partially overlapped with the third elastic arm 233, the projection of the second elastic arm 224 in the direction of the fourth elastic arm 234 is only partially overlapped with the fourth elastic arm 234, the sixth elastic arm 216 is located behind the fourth elastic arm 234, and the length of the sixth elastic arm 216 is greater than the length of the fourth elastic arm 234 between the main body 21 and the fourth elastic arm 234.

Referring to fig. 1, 4, 6 to 9, the socket connector 200 includes a second body 3 and a plurality of second terminals 4. The second body 3 has a receiving cavity 31, four terminal holes 32, a partition 33, an opening 34 and a latch 35. The accommodating cavity 31 is defined by an upper wall 311, a lower wall 312, two side walls 313 connecting the upper wall 311 and the lower wall 312, and a bottom wall 314 connecting the upper wall 311, the lower wall 312, and the two side walls 313, which are oppositely arranged, and a virtual central horizontal line C is located at the center of the accommodating cavity 31. Four terminal holes 32 divided into upper and lower rows are disposed on the bottom wall 314, each row has two terminal holes 32, the partition 33 is located in the accommodating cavity 31, the opening 34 is located on the opposite side of the bottom wall 314, and the height of the partition 33 close to one side of the terminal holes 32 is greater than the height of the partition close to one side of the opening 34 and is smaller than the height of the central horizontal line C. The latch 35 is located on the upper wall 311, and protrudes from the upper wall 311 in a direction away from the receiving cavity 31, and the latch 35 has a slope 351 and a first side 352 located at two sides of the slope 351. The second terminal 4 is accommodated in the terminal hole 32, the partition 33 protrudes from the lower wall 312 to between the two second terminals 4, the second terminal 4 has a top surface 41 and a bottom surface 42 which are oppositely arranged and two second side surfaces 43 which are connected with the top surface 41 and the bottom surface 42 and are oppositely arranged, the area of the second side surfaces 43 is larger than that of the top surface 41 and the bottom surface 42, and the second side surfaces 43 are parallel to the first side surfaces.

Referring to fig. 1 and fig. 7 to fig. 9, when the plug connector 100 is mated with the receptacle connector 200, the hole 12 is correspondingly mated with the partition 33, and when the insertion direction of the plug connector 100 is incorrect, the plug connector cannot be inserted into the receptacle connector 200, so that the plug connector 100 can be correctly mated with the receptacle connector 200, and the internal structures of the plug connector 100 and the receptacle connector 200 are prevented from being damaged in the case of incorrect insertion. The dashed lines show the state before the first elastic arm 223, the second elastic arm 224, the third elastic arm 233, the fourth elastic arm 234, the fifth elastic arm 215 and the sixth elastic arm 216 are mated with the second terminal 4, when the plug connector 100 and the receptacle connector 200 are initially mated, the first contact 2231, the second contact 2241, the third contact 2331 and the fourth contact 2341 are simultaneously contacted with the second terminal 4, the first contact 2231 is contacted with the top surface 41, and the second contact 2241 is contacted with one of the second side surfaces 43, so that the first contact 2231 and the second contact 2241 move in a direction away from the third contact 2331 and the fourth contact 2341; the third contact portion 2331 contacts the bottom surface 42, and the fourth contact portion 2341 contacts the other second side surface 43, so that the third contact portion 2331 and the fourth contact portion 2341 move away from the first contact portion 2231 and the second contact portion 2241; during the process of inserting the plug connector 100, one of the second side surfaces 43 further contacts the fifth contact portion 2151, the other second side surface 43 further contacts the sixth contact portion 2161, and the latch arm 13 cooperates with the latch 35.

In summary, the electrical connector assembly of the present invention has the following advantages:

1. by providing the first contact arm 22 and the second contact arm 23 with the first contact portion 2231, the second contact portion 2241, the third contact portion 2331 and the fourth contact portion 2341, respectively, when contacting the second terminal 4, the first contact portion 2231 contacts the top surface 41, the second contact portion 2241 contacts one of the second side surfaces 43, the third contact portion 2331 contacts the bottom surface 42, and the fourth contact portion 2341 contacts the other of the second side surfaces 43, and the first terminal 2 contacts all four surfaces of the second terminal 4, so that the stable contact between the first terminal 2 and the second terminal 4 is ensured.

2. The first contact 2231 is located on the first elastic arm 223, the second contact 2241 is located on the second elastic arm 224, the third contact 2331 is located on the third elastic arm 233, the fourth contact 2341 is located on the fourth elastic arm 234, the fifth elastic arm 215 having the fifth contact 2151 and the sixth elastic arm 216 having the sixth contact 2161 are respectively disposed behind the second elastic arm 224 and the fourth elastic arm 234, and a second insertion and extraction force can be provided during the mating of the first terminal 2 and the second terminal 4, so that the first terminal 2 does not fall off and the use effect is not affected.

3. The partition 33 is disposed on only one side of the second body 3 and protrudes between the two second terminals 4, so that the material is saved and the device can be matched with the slot 12 for fool-proofing.

4. The partition 33 is provided with a chamfer so that the height of the partition 33 close to the terminal hole 32 is greater than the height of the partition 33 close to the opening 34, which can enhance the strength of the partition 33, so that the partition 33 is not easily damaged when the plug connector 100 is plugged with the socket connector 200 for multiple times.

5. The height of the partition 33 is lower than the height of the central horizontal line C, so that the partition 33 has a sufficient space to the upper wall 311, thereby facilitating the improvement of the heat dissipation effect of the receptacle connector 200.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector assembly, comprising:

a plug connector having a first body;

a plurality of first terminals accommodated in the first body, each first terminal having a body portion, a first contact arm and a second contact arm extending forward from opposite sides of the body portion, the first contact arm having a first contact portion and a second contact portion, the second contact arm having a third contact portion and a fourth contact portion, a first angle being formed between the first contact portion and the second contact portion, a second angle being formed between the third contact portion and the fourth contact portion, and a fifth contact portion being arranged behind the second contact portion and adjacent to the body portion;

the first contact arm is provided with a first base part, a first elastic arm extends forwards from the first base part, the first contact part is positioned on the first elastic arm, the second contact arm is provided with a third base part, a third elastic arm extends forwards from the third base part, the third contact part is positioned on the third elastic arm, and the projection of the first elastic arm in the direction of the third elastic arm is only partially overlapped with the third elastic arm;

the first base part extends to the direction of the second contact arm to form a second base part, the second base part extends forwards to form a second elastic arm, the second contact part is located on the second elastic arm, the third base part extends to the direction of the first contact arm to form a fourth base part, the fourth base part extends forwards to form a fourth elastic arm, the fourth contact part is located on the fourth elastic arm, and the projection of the second elastic arm in the direction of the fourth elastic arm is only partially overlapped with the fourth elastic arm.

2. The electrical connector assembly of claim 1, wherein: a sixth contact portion is arranged behind the fourth contact portion and close to the main body portion, and the sixth contact portion and the fifth contact portion are arranged oppositely.

3. The electrical connector assembly of claim 1, wherein: the first angle equals the second angle equals 90 degrees.

4. The electrical connector assembly of claim 1, wherein: the second contact portion is located on a second elastic arm extending from the first contact arm, the fifth contact portion is located on a fifth elastic arm extending from the body portion, the fifth elastic arm is located on a side adjacent to the first contact arm, and the length of the fifth elastic arm is greater than that of the second elastic arm.

5. The electrical connector assembly of claim 1, further comprising a receptacle connector, wherein: the socket connector is provided with a second body, the second body is provided with an accommodating cavity, the accommodating cavity accommodates a plurality of second terminals and is provided with an opening for the insertion of the plug connector, and in the butt joint process of the plug connector and the socket connector, the second terminals are simultaneously contacted with the first contact part, the second contact part, the third contact part and the fourth contact part.

6. The electrical connector assembly of claim 5, wherein: the accommodating cavity is provided with a plurality of terminal holes far away from the opening, the second terminals are accommodated in the terminal holes, a partition is arranged in the accommodating cavity, and the partition protrudes from one side of the second body to a position between the two second terminals.

7. The electrical connector assembly of claim 6, wherein: the first body is provided with a plurality of accommodating holes, the first terminals are accommodated in the accommodating holes, a hole groove is formed between the two first terminals, and the hole groove is matched with the partition.

8. The electrical connector assembly of claim 7, wherein: one side of the first body outside the accommodating hole is provided with a clamping arm which is perpendicular to the hole groove.

9. The electrical connector assembly of claim 8, wherein: the second body is provided with a fixture block on one side far away from the partition outside the accommodating cavity, the fixture block is provided with an inclined plane and two first side surfaces located on two sides of the inclined plane, the second terminal is provided with a top surface, a bottom surface and two second side surfaces connected with the top surface and the bottom surface, the area of the second side surfaces is larger than that of the top surface, that of the bottom surface, that of the second side surfaces and the first side surfaces are arranged in parallel, and the clamping arms are matched with the fixture block.

10. The electrical connector assembly of claim 6, wherein: the height of the partition fence close to one side of the terminal hole is larger than that of the partition fence close to one side of the opening.

11. The electrical connector assembly of claim 6, wherein: and defining a virtual central horizontal line which is positioned in the center of the accommodating cavity, wherein the height of one side of the partition, which is close to the terminal hole, is lower than that of the central horizontal line.