CN219917665U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, comprising: the circuit board comprises a main body part and a plug-in part connected with the main body part, wherein the main body part comprises a plurality of conductive pads in a matrix, the plug-in part comprises a plurality of conductive connection parts arranged along the left-right direction, and the plurality of conductive pads are electrically connected with the plurality of conductive connection parts; the terminals are arranged in a matrix, and each terminal comprises a fixing part and a spring arm formed by bending and extending upwards from the fixing part, and each spring arm is provided with a contact part; the lower surface of the plastic film is stuck with a plurality of fixing parts, the plastic film is provided with a plurality of through holes, and the elastic arms upwards penetrate through the through holes; the insulating adhesive film is adhered to the lower surface of the plastic film, the insulating adhesive film is provided with a plurality of accommodating grooves, the fixing part is accommodated in the accommodating grooves, the plurality of terminals are in pressure connection and conduction with the plurality of conductive pads to realize welding-free between the terminals and the conductive pads, the plurality of terminals are convenient to assemble or disassemble and replace, and the manufacturing cost and the maintenance cost are reduced.

Description

Electric connector

[ field of technology ]

The present utility model relates to an electrical connector, and more particularly, to a solderless electrical connector.

[ background Art ]

Chinese application number CN201720185387.1 discloses an electronic assembly comprising a flexible printed circuit board 222 comprising a contact array 216 arranged at a first end of the flexible printed circuit board; and a rigid printed circuit board 224 including an array of pads 214 disposed along an exterior surface of the rigid printed circuit board, the flexible printed circuit board 222 and the rigid printed circuit board 224 being electrically coupleable by applying solder to the pads 214 and positioning the contacts 216 against the solder.

In the above structure, there are the following problems:

because the bonding pad of the rigid printed circuit board is electrically coupled with the contact of the flexible printed circuit board through solder, and the bonding pad and the contact are in a matrix; when the flexible circuit board is out of order and needs to be disassembled, replaced and assembled, the operation is very inconvenient, and the replaceability of the flexible printed circuit board is low.

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

[ utility model ]

In view of the problems faced by the background art, an object of the present utility model is to provide a solderless electrical connector in which a plurality of terminals and a plurality of conductive strips of a circuit board are arranged in a matrix, and the plurality of terminals are in press-contact with the plurality of conductive strips of the circuit board.

In order to achieve the above purpose, the utility model adopts the following technical means:

an electrical connector, comprising: the circuit board comprises a main body part and a plug-in part connected with the main body part, wherein the main body part comprises a plurality of conductive pads in a matrix, the plug-in part comprises a plurality of conductive connection parts arranged along the left-right direction, and the conductive pads are electrically connected with the conductive connection parts; the terminals are arranged in a matrix manner, the terminals are in pressure connection and conduction with the conductive pads, the terminals comprise fixing parts and spring arms which are formed by bending and extending upwards from the fixing parts, and the spring arms are provided with contact parts; the plastic film is stuck with a plurality of fixing parts on the lower surface of the plastic film, the plastic film is provided with a plurality of through holes, and the elastic arms upwards penetrate through the through holes; the insulating adhesive film is adhered to the lower surface of the plastic film, a plurality of accommodating grooves are formed in the insulating adhesive film, and the fixing parts are accommodated in the accommodating grooves.

Further, the insulating film is adhered to the upper surface of the main body, and the lower surfaces of the fixing parts are in pressure contact with the conductive pads.

Further, the lower surface of the plastic film is adhered to the upper surface of the insulating adhesive film through an adhesive, a notch is concavely formed in one end, far away from the spring arm, of the fixing portion, and is opposite to the spring arm of the adjacent terminal along the extending direction of the spring arm when seen from top to bottom, and the adhesive part enters the notch.

Further, the insulating film is adhered to the upper surface of the main body, and the edge of the accommodating groove is at least partially exposed in the through hole when seen in the vertical direction.

Further, the number of the conductive pads is greater than the number of the conductive connection portions, the plurality of conductive pads include a plurality of pairs of signal conductive pads and a plurality of ground conductive pads, the plurality of conductive connection portions include a plurality of pairs of signal conductive connection portions and a plurality of ground conductive connection portions, the signal conductive connection portions are electrically connected to the signal conductive pads, the ground conductive connection portions are electrically connected to the ground conductive pads, and at least one pair of signal conductive pads are adjacent to and surrounded by a plurality of ground conductive pads.

Further, the plurality of conductive pads include two pairs of first signal conductive pads and a plurality of ground conductive pads, and a plurality of conductive portions include two pairs of first signal conductive portions and a plurality of ground conductive portions, first signal conductive portions with first signal conductive pads one-to-one electric conduction, the quantity of ground conductive pads is greater than the quantity of ground conductive portions, ground conductive portions with ground conductive pads electric conduction, two pairs of first signal conductive pads dislocation and interval setting, and observe from front to back direction two pairs of first signal conductive pads between be equipped with at least one ground conductive pad.

Further, the plurality of conductive pads further includes two pairs of second signal conductive pads, the plurality of conductive portions are arranged in two rows along an up-down direction, the plurality of conductive portions of the first row include two pairs of first signal conductive portions and a plurality of ground conductive portions, the plurality of conductive portions of the second row include two pairs of second signal conductive portions and a plurality of ground conductive portions, the second signal conductive portions and the second pairs of signal conductive pads are electrically conducted in one-to-one correspondence, each pair of second signal conductive pads are staggered with the two pairs of first signal conductive pads and are arranged at intervals, and at least one ground conductive pad is arranged between the second signal conductive pad and the first signal conductive pad.

Further, the plurality of conductive pads include a pair of first signal conductive pads, a pair of second signal conductive pads and a plurality of ground conductive pads, a plurality of the conductive portions are arranged in two rows along the up-down direction, a plurality of the conductive portions of the first row include a pair of first signal conductive portions and a plurality of ground conductive portions, a plurality of the conductive portions of the second row include a pair of second signal conductive portions and a plurality of ground conductive portions, the first signal conductive portions are electrically conducted in one-to-one correspondence with the first signal conductive pads, the second signal conductive portions are electrically conducted in one-to-one correspondence with the second pair of signal conductive pads, the number of the ground conductive pads is greater than the number of the ground conductive portions, the ground conductive portions are electrically conducted with the ground conductive pads, a pair of the first signal conductive pads and a pair of the second signal conductive pads are arranged in a staggered manner, and at least one ground conductive pad is arranged between the two.

Further, the plurality of conductive parts comprise a plurality of signal conductive parts and a plurality of grounding conductive parts, the plug-in part further comprises a plate part and a locking part fixed on the plate part, the plurality of signal conductive parts are fixed on the surface of the plate part, the plurality of grounding conductive parts and the locking part are integrally formed, and the thickness of the locking part is larger than that of the plate part along the vertical direction.

Further, the upper surface of the grounding guide connection part is an inclined surface, the plug connection part is provided with a plug connection end, and the thickness of the grounding guide connection part close to one end of the plug connection end is smaller than that of the grounding guide connection part far away from one end of the plug connection end.

Compared with the prior art, the utility model has the following beneficial effects:

the fixing part for pasting the terminals through the plastic film realizes the positioning of the terminals, and the main body part of the circuit board comprises a plurality of matrix conductive pads, the terminals are in pressure connection with the conductive pads, and the flat conductive connection part is converted into an elastic terminal; the through hole that the elastic arm upwards passes the plastic film is arranged, the through hole can provide the space of stepping down for elastic deformation of the elastic arm, the contact part is favorable to upwards abutting against the first conductive element, the fixing part is accommodated in the accommodating groove, the accommodating groove can provide the space of stepping down for the fixing part, so that a plurality of terminals are in press connection and conduction with a plurality of conductive pads, and the design is convenient for assembling or disassembling and replacing a plurality of terminals due to the fact that welding is avoided between the terminals and the conductive pads, and the manufacturing cost and the maintenance cost are reduced.

[ description of the drawings ]

FIG. 1 is a perspective view of an electrical connector according to the present utility model;

FIG. 2 is an enlarged view of FIG. 1 along line A;

FIG. 3 is a front view of the electrical connector of the present utility model;

FIG. 4 is an exploded view of the electrical connector according to the first embodiment of the present utility model;

fig. 5 is a top view of an electrical connector according to a first embodiment of the present utility model;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5 without crimping with the first conductive element;

fig. 7 is a cross-sectional view of an electrical connector according to a first embodiment of the present utility model in compression with a first conductive member;

FIG. 8 is an enlarged view taken along line C of FIG. 5;

fig. 9 is a top view of a circuit board according to a first embodiment of the utility model;

fig. 10 is an exploded view of a plastic film, terminals and an insulating film according to a second embodiment of the present utility model;

fig. 11 is a combination diagram of a plastic film, a terminal and an insulating film according to a second embodiment of the present utility model;

fig. 12 is a cross-sectional view of an electrical connector according to a second embodiment of the present utility model not crimped with a first conductive element;

fig. 13 is a crimped cross-sectional view of an electrical connector according to a second embodiment of the present utility model with a first conductive element;

reference numerals of the specific embodiments illustrate:

electric connector 100	Circuit board 1	Body 11
			Conductive pad 111	Signal conductive pad 111S	First signal conductive pad 1111S
Second signal conductive pad 1112S	Grounding conductive pad 111G	Plug-in portion 12
			Conductive connection part 121	Signal conductor 121S	First signal lead 1211S
Second signal conductive connection portion 1212S	Ground conductive connection portion 121G	Plug end 122
			Plate portion 123	Latch portion 124	Terminal 2
Fixing portion 21	Notch 211	Spring arm 22
			Contact portion 221	Plastic film 3	Through hole 31
Insulating film 4	Accommodating groove 41	First conductive element 200

[ detailed description ] of the utility model

For a better understanding of the utility model with objects, structures, features, and effects, the utility model will be described further with reference to the drawings and to the detailed description.

In order to better understand the technical scheme of the utility model, an X axis in a three-dimensional coordinate axis in the drawing of the specification is defined as a front-back direction, a Y axis is defined as a left-right direction, and a Z axis is defined as an up-down direction.

As shown in fig. 1 to 9, a first embodiment of an electrical connector 100 according to the present utility model is used for electrically connecting a first conductive element 200 to a second conductive element (not shown), wherein the first conductive element 200 is preferably a motherboard, and the second conductive element (not shown) is preferably a mating connector. The electrical connector 100 includes a circuit board 1, a plurality of terminals 2 in contact with the circuit board 1, a plastic film 3 fixing the plurality of terminals 2, and an insulating film 4 fixed under the plastic film 3. The circuit board 1 is electrically connected to the second conductive element (not shown), and the terminals 2 are electrically connected to the first conductive element 200.

As shown in fig. 1 to 3 and 9, the circuit board 1 includes a main body portion 11 and a plug portion 12 connected to the main body portion 11. The main body 11 includes a plurality of conductive pads 111 in a matrix. The plugging portion 12 is configured to interface with the second conductive element (not shown), and the plugging portion 12 includes a plurality of conductive portions 121 arranged in a left-right direction, and the plurality of conductive portions 121 are arranged in two rows in a vertical direction. The second conductive element (not shown) has a plurality of butt terminals (not shown), and the plurality of conductive parts 121 are electrically connected to the plurality of butt terminals (not shown). The conductive connection portions 121 are electrically connected to the conductive pads 111, and the number of the conductive pads 111 is greater than the number of the conductive connection portions 121. The plugging portion 12 further includes a plugging end 122, a plate portion 123, and a locking portion 124 fixed to the plate portion 123, wherein a thickness H1 of the locking portion 124 is greater than a thickness H2 of the plate portion 123 in an up-down direction. The second conductive element (not shown) has a locking portion (not shown), and the locking portion 124 is configured to lock with the locking portion (not shown).

As shown in fig. 1 to 3 and 9, the plurality of conductive pads 111 includes a plurality of pairs of signal conductive pads 111S and a plurality of ground conductive pads 111G, wherein each pair of signal conductive pads 111S transmits a differential signal. The plurality of conductive parts 121 include a plurality of pairs of signal conductive parts 121S and a plurality of ground conductive parts 121G, wherein each pair of signal conductive parts 121S transmits a differential signal, and the plurality of pairs of signal conductive parts 121S and the plurality of ground conductive parts 121G are arranged in two rows in the up-down direction. The plurality of butt terminals (not shown) of the second conductive element (not shown) includes a plurality of pairs of butt signal terminals (not shown) and a plurality of butt ground terminals (not shown), the signal conductive portion 121S is for conductive connection with the butt signal terminals (not shown) of the second conductive element (not shown), and the ground conductive portion 121G is for conductive connection with the butt ground terminals (not shown) of the second conductive element (not shown). The signal conductive portions 121S are electrically connected to the signal conductive pads 111S, and the ground conductive portions 121G are electrically connected to the ground conductive pads 111G, wherein the number of the ground conductive pads 111G is greater than the number of the ground conductive portions 121G. Each pair of the signal conductive pads 111S is adjacent to the plurality of the ground conductive pads 111G and surrounded by the plurality of the ground conductive pads 111G. In other embodiments, only one pair of the signal conductive pads 111S is adjacent to the plurality of the ground conductive pads 111G and surrounded by the plurality of the ground conductive pads 111G. A pair of the signal conductive pads 111S is adjacent to the plurality of the ground conductive pads 111G and surrounded by the plurality of the ground conductive pads 111G, which is advantageous for shielding electromagnetic signal interference between one pair of the signal conductive pads 111S and another pair of the signal conductive pads 111S, thereby improving crosstalk. The plurality of signal connection parts 121S are fixed on the surface of the plate 123, and the plurality of ground connection parts 121G and the locking parts 124 are integrally formed, so that the strength and hardness of the ground connection parts 121G and the locking parts 124 can be enhanced, and the connection and disconnection stability during the connection can be facilitated. The upper surface of the grounding conductive portion 121G is an inclined surface, and the thickness of the grounding conductive portion 121G near the end of the insertion end 122 is smaller than that of the end far away from the insertion end 122, so that the grounding conductive portion is convenient to repeatedly insert and extract the second conductive element (not shown), and is favorable for realizing ten thousand times of insertion and extraction resistance.

As shown in fig. 9, the plurality of pairs of signal conductive pads 111S include two pairs of first signal conductive pads 1111S, the two pairs of first signal conductive pads 1111S are offset and spaced apart, and a plurality of ground conductive pads 111G are disposed between the two pairs of first signal conductive pads 1111S. In other embodiments, one of the ground conductive pads 111G is disposed between two pairs of the first signal conductive pads 1111S. The plurality of signal conductive parts 121S of the first row includes two pairs of first signal conductive parts 1211S arranged in the left-right direction. The first signal conductive portions 1211S are electrically connected to the first signal conductive pads 1111S in a one-to-one correspondence. The two pairs of the first signal conductive portions 1211S are arranged along the left-right direction, and are electrically connected to the two pairs of the first signal conductive pads 1111S in a one-to-one correspondence manner, so as to be converted into two pairs of the first signal conductive pads 1111S which are staggered and arranged at intervals, the two pairs of the first signal conductive pads 1111S are staggered and arranged at intervals, and the grounding conductive pad 111G is arranged between the two pairs of the first signal conductive pads 1111S when the two pairs of the first signal conductive pads 1111S are observed from the front-back direction, which is beneficial to reducing electromagnetic signal interference between the two pairs of the first signal conductive pads 1111S and improving signal crosstalk.

As shown in fig. 9, the plurality of pairs of signal conductive pads 111S further includes two pairs of second signal conductive pads 1112S, the two pairs of second signal conductive pads 1112S are offset and spaced apart, and a plurality of ground conductive pads 111G are disposed between the two pairs of second signal conductive pads 1112S. In other embodiments, one of the ground conductive pads 111G is disposed between two pairs of the second signal conductive pads 1112S. The plurality of signal conductors 121S of the second row includes two pairs of second signal conductors 1212S arranged in a left-right direction. The second signal conductive portions 1212S are electrically connected to the second signal conductive pads 1112S in a one-to-one correspondence. The two pairs of second signal conductive portions 1212S are arranged along the left-right direction, and are electrically connected to the two pairs of second signal conductive pads 1112S in a one-to-one correspondence manner, so as to be converted into two pairs of second signal conductive pads 1112S which are staggered and arranged at intervals, the two pairs of second signal conductive pads 1112S are staggered and arranged at intervals, and the grounding conductive pad 111G is arranged between the two pairs of second signal conductive pads 1112S when the two pairs of second signal conductive pads 1112S are observed from the front-back direction, which is beneficial to reducing electromagnetic signal interference between the two pairs of second signal conductive pads 1112S and improving signal crosstalk.

As shown in fig. 9, each pair of the second signal conductive pads 1112S is offset from and spaced apart from two pairs of the first signal conductive pads 1111S, and a plurality of the ground conductive pads 111G are disposed between the second signal conductive pads 1112S and the first signal conductive pads 1111S, which is beneficial to reducing electromagnetic signal interference between the second signal conductive pads 1112S and the first signal conductive pads 1111S and further improving signal crosstalk. In other embodiments, only one pair of the second signal conductive pads 1112S is offset from and spaced apart from one pair of the first signal conductive pads 1111S, and one of the ground conductive pads 111G is disposed between the second signal conductive pads 1112S and the first signal conductive pads 1111S.

As shown in fig. 4 to 8, a plurality of the terminals 2 are arranged in a matrix, and the plurality of the terminals 2 are in pressure-contact conduction with the plurality of the conductive pads 111. The terminal 2 includes a fixing portion 21 and spring arms 22 formed by bending and extending upward from the fixing portion 21. The spring arm 22 is provided with a contact portion 221, the contact portion 221 elastically abuts against the first conductive member 200 upward, and the lower surfaces of the plurality of fixing portions 21 are in pressure contact with the plurality of conductive pads 111 for pressure contact with the circuit board 1 downward. One end of the fixing portion 21, which is far away from the spring arm 22, is concavely provided with a notch 211, and the notch 211 is opposite to the spring arm 22 of the adjacent terminal 2 along the extending direction of the spring arm 22 when seen from top to bottom.

As shown in fig. 4 to 6, a plurality of fixing parts 21 are attached to the lower surface of the plastic film 3, the plastic film 3 is provided with a plurality of through holes 31, and the spring arms 22 pass through the through holes 31 upward.

As shown in fig. 5 and 8, the insulating film 4 is attached to the lower surface of the plastic film 3 and the upper surface of the main body 11 by an adhesive (not shown), and the adhesive (not shown) partially enters the notch 211. The insulating film 4 is provided with a plurality of receiving grooves 41, the fixing portion 21 is received in the receiving grooves 41, and the edge of the receiving groove 41 is at least partially exposed in the through hole 31 when viewed in the vertical direction. The first conductive element 200, the plastic film 3, the insulating film 4 and the main body 11 are fixed together by screws (not shown) and nuts (not shown).

As shown in fig. 1 to 3 and fig. 10 to 13, a second embodiment of an electrical connector 100 according to the present utility model is used for electrically connecting a first conductive element 200 to a second conductive element (not shown), wherein the first conductive element 200 is preferably a motherboard, and the second conductive element (not shown) is preferably a mating connector, and the main difference between the configuration and the first embodiment is that: the terminals 2 are arranged in a matrix, the terminals 2 are arranged in an upper layer and a lower layer, and the terminals 2 on the upper layer and the terminals 2 on the lower layer are arranged in a vertically symmetrical manner. The terminal 2 includes a fixing portion 21 and spring arms 22 formed by bending and extending upward from the fixing portion 21. The spring arm 22 is provided with a contact portion 221, the contact portion 221 of the upper terminal 2 is elastically abutted against the first conductive element 200, the fixing portion 21 of the upper terminal 2 and the fixing portion 21 of the lower terminal 2 are stacked up and down and are electrically conducted, and the contact portion 221 of the lower terminal 2 is abutted against the conductive pad 111 downward to be electrically conducted with the circuit board 1.

As shown in fig. 11 and 12, the plastic film 3 has two layers, an upper layer, a lower surface of the plastic film of the upper layer is adhered with a plurality of fixing portions 21 of the terminal 2 of the upper layer, the plastic film 3 of the upper layer is provided with a plurality of through holes 31, the spring arms 22 of the terminal 2 of the upper layer pass through the through holes 31 upwards, an upper surface of the plastic film of the lower layer is adhered with a plurality of fixing portions 21 of the terminal 2 of the lower layer, the plastic film 3 of the lower layer is provided with a plurality of through holes 31, and the spring arms 22 of the terminal 2 of the lower layer pass through the through holes 31 downwards.

As shown in fig. 10 and 11, the insulating film 4 is spaced from the main body 4, and the insulating film 4 is adhered to the lower surface of the upper plastic film 3 and the upper surface of the lower plastic film 3 by an adhesive. The insulating film 4 is provided with a plurality of receiving grooves 41, the fixing portion 21 on the upper layer and the fixing portion 21 on the lower layer are both received in the receiving grooves 41, and the edges of the receiving grooves 41 are at least partially exposed in the through holes 31 when viewed in the vertical direction. The first conductive member 200, the plastic film 3 of the upper layer, the insulating film 4, the plastic film 3 of the lower layer, and the main body 11 are fixed together by screws and nuts.

In summary, the electrical connector 100 of the present utility model has the following advantages:

(1) The plugging portion 12 includes a plurality of conductive portions 121 arranged in a left-right direction, and is electrically connected to the plurality of conductive pads 111 through the plurality of conductive portions 121, so as to be converted into the main body portion 11 having a plurality of conductive pads 111 in a matrix; on the basis, the fixing part 21 of the plurality of terminals 2 is stuck by the plastic film 3 to realize the positioning of the plurality of terminals 2, and the main body part 11 of the circuit board 1 comprises a plurality of conductive pads 111 in a matrix shape, and the plurality of terminals 2 are in pressure connection and conduction with the plurality of conductive pads 111 to realize the conversion from the flat plate-shaped conductive connection part 121 to the elastic terminal 2; the elastic arm 22 is arranged to pass through the through hole 31 of the plastic film 3, the through hole 31 can provide a space for yielding for elastic deformation of the elastic arm 22, the contact part 221 is beneficial to being propped against the first conductive element 200 upwards, the fixing part 21 is accommodated in the accommodating groove 41, the accommodating groove 41 can provide a space for yielding for the fixing part 21, so that a plurality of terminals 2 are in pressure connection and conduction with a plurality of conductive pads 111, and the design is beneficial to assembling or disassembling and replacing the terminals 2 and reducing the manufacturing cost and the maintenance cost due to the fact that welding is avoided between the terminals 2 and the conductive pads 111.

(2) By arranging the fixing portion 21 to be accommodated in the accommodating groove 41 of the insulating film 4, the insulating film 4 is adhered to the upper surface of the main body 11, so that a plurality of fixing portions 21 and a plurality of conductive pads 111 are in pressure connection and conduction, and as the fixing portions 21 and the conductive pads 111 can be in direct electrical contact, the fixing portions 21 and the conductive pads 111 do not need to be in contact with each other through solder, a welding process can be reduced, the terminal 2 can be assembled or disassembled and replaced conveniently, the manufacturing cost and the maintenance cost can be reduced, the height from the first conductive element 200 to the main body 11 along the vertical direction can be reduced, the low height can be realized, and the stability of current transmission can be ensured.

(3) The fixing portion 21 of the terminal 2 and the spring arm 22 of the adjacent terminal 2 have a preset interval, and under the condition that the preset interval is kept unchanged, a notch 211 is concavely arranged at one end of the fixing portion 21 away from the spring arm 22, and the notch 211 is opposite to the spring arm 22 of the adjacent terminal 2 along the extending direction of the spring arm 22 from top to bottom, so that the interval between the terminal 2 and the adjacent terminal 2 is beneficial to shortening, the space occupied by the terminal 2 is saved, and the dense distribution of a plurality of terminals 2 is realized; while the adhesive portion enters the gap 211, the gap 211 provides a receiving space for the adhesive.

(4) Since the insulating film 4 is to be adhered to the upper surface of the main body 11 and the lower surface of the plastic film 3, the edges of the receiving groove 41 are at least partially exposed in the through hole 31 when the plastic film 3 and the main body 11 are pulled from opposite directions from top to bottom, and the area of the insulating film 4 is increased, so that the adhesive strength between the insulating film 4 and the plastic film 3 and between the insulating film 4 and the main body 11 is increased.

(5) Since the grounding conductive portion 121G is used for conductive connection with the butt-joint grounding terminal of the second conductive element (not shown), the locking portion 124 is used for locking with the locking portion of the second conductive element (not shown), and the plurality of grounding conductive portions 121G and the locking portion 124 are integrally formed, so that strength and hardness of the grounding conductive portion 121G and the locking portion 124 can be enhanced, stable insertion and extraction during butt-joint can be facilitated, and since the signal conductive portion 121S is used for conductive connection with the butt-joint signal terminal of the second conductive element (not shown), in order to ensure stable butt-joint of the electrical connector 100 with the second conductive element (not shown), the signal conductive portion 121S and the grounding conductive portion 121G are generally provided with a consistent height, and thickness of the locking portion 124 along the upper and lower direction is greater than that of the plate portion 123, so that the plurality of grounding conductive portions 121G and the locking portion 124 can be integrally formed, and the consistent thickness of the locking portion 124 can be further increased, so that the strength of the locking portion 124 can be further enhanced, and the strength of the butt-joint portion 124 can be further enhanced.

The above detailed description is merely illustrative of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the utility model.

Claims (10)

1. An electrical connector, comprising:

the circuit board comprises a main body part and a plug-in part connected with the main body part, wherein the main body part comprises a plurality of conductive pads in a matrix, the plug-in part comprises a plurality of conductive connection parts arranged along the left-right direction, and the conductive pads are electrically connected with the conductive connection parts;

the terminals are arranged in a matrix manner, the terminals are in pressure connection and conduction with the conductive pads, the terminals comprise fixing parts and spring arms which are formed by bending and extending upwards from the fixing parts, and the spring arms are provided with contact parts;

the plastic film is stuck with a plurality of fixing parts on the lower surface of the plastic film, the plastic film is provided with a plurality of through holes, and the elastic arms upwards penetrate through the through holes;

the insulating adhesive film is adhered to the lower surface of the plastic film, a plurality of accommodating grooves are formed in the insulating adhesive film, and the fixing parts are accommodated in the accommodating grooves.

2. The electrical connector of claim 1, wherein: the insulating adhesive film is adhered to the upper surface of the main body part, and the lower surfaces of the fixing parts are in pressure contact with the conductive pads.

3. The electrical connector of claim 1, wherein: the lower surface of the plastic film is adhered to the upper surface of the insulating adhesive film through an adhesive, a notch is concavely formed in one end, far away from the spring arm, of the fixing portion, and is opposite to the spring arm of the adjacent terminal along the extending direction of the spring arm when seen from top to bottom, and the adhesive part enters the notch.

4. The electrical connector of claim 1, wherein: the insulating adhesive film is adhered to the upper surface of the main body part, and the edge of the accommodating groove is at least partially exposed in the through hole when seen in the vertical direction.

5. The electrical connector of claim 1, wherein: the number of the conductive pads is larger than that of the conductive connection parts, the conductive pads comprise a plurality of pairs of signal conductive pads and a plurality of grounding conductive pads, the conductive connection parts comprise a plurality of pairs of signal conductive connection parts and a plurality of grounding conductive connection parts, the signal conductive connection parts are electrically conducted with the signal conductive pads, the grounding conductive connection parts are electrically conducted with the grounding conductive pads, and at least one pair of signal conductive pads are adjacent to the grounding conductive pads and are surrounded by the grounding conductive pads.

6. The electrical connector of claim 1, wherein: the plurality of conductive pads comprise two pairs of first signal conductive pads and a plurality of grounding conductive pads, the plurality of conductive parts comprise two pairs of first signal conductive parts and a plurality of grounding conductive parts, the first signal conductive parts are electrically conducted in one-to-one correspondence with the first signal conductive pads, the number of the grounding conductive pads is larger than that of the grounding conductive parts, the grounding conductive parts are electrically conducted with the grounding conductive pads, the two pairs of the first signal conductive pads are staggered and arranged at intervals, and at least one grounding conductive pad is arranged between the two pairs of first signal conductive pads when being observed from front and back directions.

7. The electrical connector of claim 6, wherein: the plurality of conductive pads further comprises two pairs of second signal conductive pads, the plurality of conductive connection parts are arranged in two rows along the up-down direction, the plurality of conductive connection parts of the first row comprise two pairs of first signal conductive connection parts and a plurality of grounding conductive connection parts, the plurality of conductive connection parts of the second row comprise two pairs of second signal conductive connection parts and a plurality of grounding conductive connection parts, the second signal conductive connection parts are electrically conducted in one-to-one correspondence with the second pairs of signal conductive pads, each pair of second signal conductive pads are staggered with the two pairs of first signal conductive pads and are arranged at intervals, and at least one grounding conductive pad is arranged between the second signal conductive pad and the first signal conductive pad.

8. The electrical connector of claim 1, wherein: the plurality of conductive pads comprise a pair of first signal conductive pads, a pair of second signal conductive pads and a plurality of grounding conductive pads, the plurality of conductive connection parts are arranged into two rows along the up-down direction, the plurality of conductive connection parts of the first row comprise a pair of first signal conductive connection parts and a plurality of grounding conductive connection parts, the plurality of conductive connection parts of the second row comprise a pair of second signal conductive connection parts and a plurality of grounding conductive connection parts, the first signal conductive connection parts are electrically conducted in one-to-one correspondence with the first signal conductive pads, the second signal conductive connection parts are electrically conducted in one-to-one correspondence with the second pair of signal conductive pads, the number of grounding conductive pads is greater than that of the grounding conductive connection parts, the grounding conductive connection parts are electrically conducted with the grounding conductive pads, the pair of first signal conductive pads and the pair of second signal conductive pads are arranged in a staggered manner, and at least one grounding conductive pad is arranged between the first signal conductive pads and the second signal conductive pads.

9. The electrical connector of claim 1, wherein: the plurality of conductive parts comprise a plurality of signal conductive parts and a plurality of grounding conductive parts, the plug-in part further comprises a plate part and a locking part fixed on the plate part, the plurality of signal conductive parts are fixed on the surface of the plate part, the grounding conductive parts and the locking part are integrally formed, and the thickness of the locking part is larger than that of the plate part along the vertical direction.

10. The electrical connector of claim 9, wherein: the upper surface of the grounding guide connection part is an inclined surface, the plug connection part is provided with a plug connection end, and the thickness of the grounding guide connection part, which is close to one end of the plug connection end, is smaller than that of one end, which is far away from the plug connection end.