CN110391525B

CN110391525B - Electric connector and terminal thereof

Info

Publication number: CN110391525B
Application number: CN201810347142.3A
Authority: CN
Inventors: 杨策航
Original assignee: All Best Precision Technology Co Ltd
Current assignee: All Best Precision Technology Co Ltd
Priority date: 2018-04-18
Filing date: 2018-04-18
Publication date: 2020-11-13
Anticipated expiration: 2038-04-18
Also published as: CN110391525A

Abstract

The invention provides an electric connector and a terminal thereof, wherein the electric connector comprises an insulating body and a terminal, the insulating body is provided with a fixing hole, and the fixing hole is provided with a first inner side wall and a second inner side wall opposite to the first inner side wall. The terminal comprises a contact part, a fixing part and a connecting part, wherein the contact part and the connecting part respectively extend from the fixing part and are exposed out of the insulating body, the fixing part is provided with a first side surface and a second side surface opposite to the first side surface, the fixing part is provided with a through hole, the fixing part is fixed in the fixing hole, the through hole is positioned in the fixing hole, the first side surface faces the first inner side wall and is separated from the first inner side wall by a first distance, and the second side surface faces the second inner side wall and is separated from the second inner side wall by a second distance. The structural design makes the impedance of the electric connector easy to adjust, and is beneficial to reducing the cost and time for developing the electric connector.

Description

Electric connector and terminal thereof

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector with a tuned impedance terminal.

Background

Electrical connectors are widely used in a variety of electronic devices. Through the electric connector, electric connection and signal transmission are carried out between electronic devices and between elements in the electronic devices. As the frequency of signal transmission increases, the impedance of the electrical connector also increases in its effect on signal transmission. Under the condition of high-frequency transmission, when the impedance of the electrical connector is not matched with that of the transmission line, the electrical connector reflects signals, so that the signals are attenuated. The higher the impedance mismatch, the more signal attenuation, and the loss of signal transmission function of the electrical connector. At present, the structural design of the electrical connector is mainly focused on the mechanical characteristics of the electrical connector, such as insertion and extraction force, durability and the like; design experience is largely relied upon in the electrical characteristics of the electrical connector. In the structural design process of the electrical connector, when the electrical connector for testing does not meet the impedance requirement through physical testing, the dimensions of the insulating body and the conductive terminals are often required to be corrected at the same time, which is time-consuming and increases the cost.

Disclosure of Invention

In view of the above-mentioned problems, the present invention provides an electrical connector, in which a conductive terminal has a through hole at a portion fixed in an insulative housing and has a side surface spaced from the insulative housing, and the structure is designed to help adjust the impedance of the electrical connector.

The electrical connector according to the present invention comprises an insulative housing and a terminal. The insulation body is provided with a fixing hole, and the first fixing hole is provided with a first inner side wall and a second inner side wall opposite to the first inner side wall. The first terminal comprises a contact part, a fixing part and a connecting part, wherein the contact part and the connecting part respectively extend from the fixing part and are exposed out of the insulating body. The fixing part is provided with a first side surface and a second side surface opposite to the first side surface in one direction, and the fixing part is provided with a through hole. The fixing part is fixed in the fixing hole, the through hole is positioned in the fixing hole, the first side face faces the first inner side wall and is separated from the first inner side wall by a first distance, and the second side face faces the second inner side wall and is separated from the second inner side wall by a second distance. Therefore, in practice, the impedance of the electrical connector can be adjusted by changing the structural size of the fixing portion with respect to the through hole (e.g., the peripheral profile in the direction and the aperture of the through hole) or changing the first pitch and the second pitch.

Another object of the present invention is to provide a terminal for use in an electrical connector. The terminal has a through hole in the portion fixed in the insulating body of the electrical connector, and the structure design is favorable for adjusting the impedance of the electrical connector.

The terminal according to the present invention includes a fixing portion, a contact portion and a connecting portion. The fixing part is provided with a first side surface and a second side surface opposite to the first side surface in a first direction, the fixing part comprises a propping part and a through hole, the propping part is protruded in a second direction perpendicular to the first direction, the through hole is positioned in the propping part and penetrates through the first side surface and the second side surface, and the fixing part is fixed in the electric connector through the propping part. The contact portion extends from the fixing portion. The connecting part extends from the fixing part. Therefore, in practice, the impedance of the electric connector can be adjusted by changing the aperture of the through hole and the contour of the abutting part.

Compared with the prior art, the electrical connector and the terminal according to the present invention can adjust the impedance of the electrical connector by changing the structural dimensions of the fixing portion (such as the profile of the abutting portion and the aperture of the through hole) or changing the first pitch and the second pitch. The structural design makes the impedance of the electric connector easy to adjust, is beneficial to reducing the cost and time of developing the electric connector, and effectively solves the problem of the background technology.

The advantages and spirit of the present invention can be further understood by the following detailed description of the invention and the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of an electrical connector according to an embodiment of the invention.

Fig. 2 is an exploded perspective view of the electrical connector of fig. 1.

Fig. 3 is a schematic view of the dielectric body of the electrical connector of fig. 1 taken along line X-X.

Fig. 4 is a side view of the upper row of terminals of the electrical connector of fig. 1.

Fig. 5 is a side view of the lower row of terminals of the electrical connector of fig. 1.

Fig. 6 is a cross-sectional view of the electrical connector of fig. 1 taken along line X-X.

Fig. 7 is a partially enlarged view of circle a in fig. 6.

Fig. 8 is a cross-sectional view of a portion of the electrical connector of fig. 1 taken along line Y-Y.

Fig. 9 is an exploded perspective view of a simplified variation portion of the electrical connector of fig. 1.

Fig. 10 is a cross-sectional view taken along line Z-Z after assembly of the structure shown in fig. 9.

Reference numerals

1 electric connector

12. 13 insulating body

12a front side

12b rear side

122 upper row of fixing holes

1222. 1322 first inner side wall

1224. 1324 second inner side wall

1226 third inner side wall

1227. 1229 groove

1228 fourth inner side wall

124 lower row of fixing holes

126 jack

128 positioning column

132 fixing hole

14 back cover

16 upper row terminal

162 contact part

164 fixed part

164a first side

164b second side

1642 body

1642a external diameter

1644 first abutting part

1646 second abutting part

1648 first through hole

1648a aperture

1650 second through hole

1650a Aperture

166 connecting part

166a side surface

168 stop part

18 lower row terminal

182 contact part

184 fixed part

186 connecting part

186a side surface

19 terminal

192 contact part

194 fixed part

194a first side

194b second side

1942 body

1944 abutting part

1946A through hole

196 connecting part

20 fixing piece

3 electric connector

32 terminal

4 Circuit board

D1 first direction

D2 second direction

Third direction D3

L1, L2 outer diameter

W0, W0' outside diameter

W1, W1' first spacing

W2, W2' second pitch

P1 first pitch

P2 second pitch

Detailed Description

Please refer to fig. 1 to 6. An electrical connector 1 according to an embodiment of the present invention includes an insulative housing 12, a rear cover 14, a plurality of upper row terminals 16 and a plurality of lower row terminals 18 (only a plurality are shown in fig. 2). The insulative housing 12 (e.g., but not limited to, a plastic injection member) has a plurality of upper fixing holes 122 and a plurality of lower fixing holes 124, which are arranged in parallel and respectively correspond to the upper terminals 16 and the lower terminals 18. The upper row terminal 16 includes a contact portion 162, a fixing portion 164 and a connecting portion 166, the contact portion 162 and the connecting portion 166 respectively extend from the fixing portion 164, the upper row terminal 16 is fixed in the corresponding upper row fixing hole 122 through the fixing portion 164, so that the contact portion 162 and the connecting portion 166 are exposed out of the insulating body 12; similarly, the lower terminal 18 includes a contact portion 182, a fixing portion 184 and a connecting portion 186, the contact portion 182 and the connecting portion 186 respectively extend from the fixing portion 184, and the lower terminal 18 is fixed in the corresponding lower fixing hole 124 through the fixing portion 184, such that the contact portion 182 and the connecting portion 186 are respectively exposed at the front side 12a and the rear side 12b of the insulating body 12.

In the present embodiment, the electrical connector 1 is a female-end and board-side electrical connector, the insulating body 12 has a front side 12a and a rear side 12b, the insulating body 12 has a receptacle 126 at the front side 12a, and the upper row of fixing holes 122 and the lower row of fixing holes 124 penetrate through the insulating body 12 and communicate with the front side 12a and the rear side 12b, so that the contact portions 162 of the upper row of terminals 16 and the contact portions 182 of the lower row of terminals 18 are exposed in the receptacle 126 (or exposed from the front side 12a to the insulating body 12). In practice, a mating male electrical connector 3 (shown in dashed lines in fig. 6) is inserted into the insertion hole 126 (the insertion direction is shown in fig. 6 with arrows) to electrically contact the conductive terminals 32 with the upper and lower

conductive terminals

16, 18, so as to achieve connection (including mechanical and electrical connection) of the electrical connectors 1, 3. The male electrical connector 3 may be a board-side electrical connector, a cable connector, or even an adapter. In addition, in the present embodiment, the connecting portions 166 of the upper row terminals 16 and the connecting portions 186 of the lower row terminals 18 are exposed from the rear side 12b of the insulating body 12 to the insulating body 12 and bent downward to be fixed to the circuit board 4 (shown in fig. 6 by dotted lines) by, but not limited to, through-hole mounting technology (such as surface mount technology). The bottom of the insulating body 12 has two positioning posts 128 protruding downward and capable of being inserted into positioning holes (not shown) of the circuit board 4; the electrical connector 1 further includes a plurality of fixing members 20 (e.g., metal members) connected to the insulative housing 12 and extending downward, and capable of being inserted into and fixed (e.g., soldered) to fixing holes (not shown) of the circuit board 4, which has positioning and fixing effects.

In the present embodiment, the upper row terminal 16 and the lower row terminal 18 have a logical structure, and the upper row fixing hole 122 and the lower row fixing hole 124 have a logical structure, so the following description uses the upper row terminal 16 and the upper row fixing hole 122 as an example; for the description of the lower row terminals 18 and the lower row fixing holes 124, the description of the upper row terminals 16 and the upper row fixing holes 122 can be referred to directly, unless otherwise specified, and will not be repeated. Please refer to fig. 7 and 8. The fixing portion 164 of the upper row terminal 16 has a first side 164a and a second side 164b opposite to the first side 164a in a first direction D1, the fixing portion 164 includes a body 1642, a first abutting portion 1644 and a second abutting portion 1646, the first abutting portion 1644 and the second abutting portion 1646 are protruded in a second direction D2 perpendicular to the first direction D1, and the body 1642 extends in a third direction D3 perpendicular to the first direction D1 and the second direction D2 and connects the first abutting portion 1644 and the second abutting portion 1646. In the upper row of terminals 16, the fixing portion 164 extends in the third direction D3, and the contact portion 162 and the connecting portion 166 extend from opposite ends of the fixing portion 164 in the third direction D3. With respect to the first direction D1, the upper row of fastening holes 122 has a first inner sidewall 1222, a second inner sidewall 1224 opposite the first inner sidewall 1222; with respect to the second direction D2, the upper row of fastening holes 122 has a third inner sidewall 1226 between the first inner sidewall 1222 and the second inner sidewall 1224, and a fourth inner sidewall 1228 opposite to the third inner sidewall 1226. The fixing portion 164 presses against the upper row of fixing holes 122 by the first abutting portion 1644 and the second abutting portion 1646, so that the upper row of terminals 16 is fixed to the insulating body 12 (or the fixing portion 164 is fixed to the upper row of fixing holes 122). In the present embodiment, the upper row of terminals 16 is inserted into the upper row of fixing holes 122 in the third direction D3, and the second abutting portion 1646 is located between the first abutting portion 1644 and the contact portion 162, so in principle, the outer diameter L1 of the first abutting portion 1644 in the second direction D2 is greater than the outer diameter L2 of the second abutting portion 1646 in the second direction D2, so that the upper row of terminals 16 can be smoothly inserted into the upper row of fixing holes 122 and the first abutting portion 1644 and the second abutting portion 1646 can maintain effective clamping effect with the upper row of fixing holes 122.

In the embodiment, the first abutting portion 1644 and the second abutting portion 1646 are both protruded from the two sides of the body 1642 in parallel to the second direction D2, so that the first abutting portion 1644 and the second abutting portion 1646 abut against the third inner sidewall 1226 and the fourth inner sidewall 1228 at the same time; in practice, however, the first abutting portion 1644 and the second abutting portion 1646 may be a structure protruding from one side of the body 1642 in parallel to the second direction D2 (e.g., the structure protruding from the upper side of the fixing portion 164 in fig. 4 abuts against the third inner sidewall 1226; and the lower side of the fixing portion 164 is kept flat and abuts against the fourth inner sidewall 1228). In addition, in the present embodiment, the upper row of fixing holes 122 forms opposite grooves 1227, 1229 (extending in the third direction D3) in the second direction D2, and the width (i.e. the width in the first direction D1) of the upper row of fixing holes 122 is substantially equal to the thickness of the upper row of terminals 16 in the first direction D1 (e.g. when the upper row of terminals 16 is made of a metal plate, the thickness is equivalent to the plate thickness), which facilitates smooth insertion and positioning of the upper row of terminals 16 in the upper row of fixing holes 122. In practice, the fixing portion 164 may only have the first abutting portion 1644 and the second abutting portion 1646 received in the

grooves

1227, 1229. In the present embodiment, the body 1642 is loosely fitted into the upper row of fixing holes 122, so that the holding force between the upper row of terminals 16 and the upper row of fixing holes 122 can be easily determined by controlling the degree of structural interference between the first abutting portion 1644 and the second abutting portion 1646 (and (the third inner sidewall 1226 and the fourth inner sidewall 1228 of) the upper row of fixing holes 122. In practice, however, the body 1642 may also interfere with the upper row of fixing holes 122 to contribute to the above-mentioned holding force. In addition, in fig. 8, the cross section of the upper row terminal 16 is not vertically symmetrical with respect to the upper row fixing hole 122, because the first abutting portion 1644 is embedded into the fourth inner sidewall 1228 (i.e. pushes the fourth inner sidewall 1228 downwards), which can also be understood from fig. 7 (side cross-sectional view).

In the present embodiment, when the fixing portion 164 is fixed in the upper row of fixing holes 122, the first side surface 164a faces the first inner sidewall 1222 and is separated from the first inner sidewall 1222 by a first distance W1, and the second side surface 164b faces the second inner sidewall 1224 and is separated from the second inner sidewall 1224 by a second distance W2, so that air bands can exist between the first side surface 164a and the first inner sidewall 1222, and between the second side surface 164b and the second inner sidewall 1224; in practice, the first side 164a and the second side 164b are substantially parallel to the first inner sidewall 1222 and the second inner sidewall 1224, respectively. By designing the first spacing W1 and the second spacing W2, the impedance of the electrical connector 1 can be adjusted (or changed); in practice, the first spacing W1 and the second spacing W2 may be equal to each other and the sum of the first spacing W1 and the second spacing W2 is greater than one third of the outer diameter W0 of the fixing portion 164 in the first direction D1 (i.e., the thickness of the fixing portion 164).

In the present embodiment, the fixing portion 164 has a first through hole 1648 and a second through hole 1650, both of which penetrate through the first side surface 164a and the second side surface 164b along the first direction D1. When the fixing portion 164 is fixed in the upper row of fixing holes 122, the first through hole 1648 and the second through hole 1650 are both located in the upper row of fixing holes 122. By designing the sizes of the first through hole 1648 and the second through hole 1650, the impedance of the electrical connector 1 can be adjusted (or changed). In the embodiment, the first through hole 1648 and the second through hole 1650 are respectively located on the first abutting portion 1644 and the second abutting portion 1646, the

apertures

1648a and 1650a of the first through hole 1648 and the second through hole 1650 in the second direction D2 are both larger than the outer diameter 1642a of the body 1642 in the second direction D2, and the first through hole 1648 is larger than the second through hole 1650 (or the aperture 1648a is larger than the aperture 1650a), but this is not limited in the implementation, for example, the first through hole 1648 and the second through hole 1650 may not be formed on the first abutting portion 1644 and the second abutting portion 1646, and for example, the aperture value satisfying the impedance of the electrical connector 1 may be obtained by simple trial.

In the present embodiment, the upper row terminal 16 further includes a stop portion 168 extending from the connecting portion 166 along the second direction D2 (or upward). When the fixing portion 164 is fixed in the upper row of fixing holes 122, the stopper 168 abuts against the rear side 12b of the insulating housing 12, which serves as a positioning mechanism for inserting the upper row of terminals 16 into the upper row of fixing holes 122. In contrast, during the process of inserting the lower row of terminals 18 into the lower row of fixing holes 124, the connecting portions 186 of the lower row of terminals 18 abut against the rear side 12b of the insulative housing 12 toward the side 186a of the insulative housing 12 as a positioning mechanism. In addition, in the present embodiment, after the lower row of terminals 18 are inserted into the lower row of fixing holes 124, the rear cover 14 is assembled to the rear side 12b to cover the lower row of fixing holes 124 and the connecting portion 186 of the lower row of terminals 18; at this time, the fixing portion 184 of the lower row terminal 18 is not completely visible from the rear side 12 b. The connecting portion 166 of the upper row terminal 16 is exposed from the rear cover 14, but the fixing portion 164 is also shielded by the stopper portion 168 and the connecting portion 166 in principle, and the fixing portion 164 can be regarded as being invisible from the rear side 12b in structure. In addition, the rear cover 14 can provide a positioning effect for the upper row of terminals 16, so that the stopper 168 can be omitted if the connecting portion 166 abuts against the rear cover 14 toward the side surface 166a of the insulating body 12 as a positioning mechanism.

In addition, in the present embodiment, as shown in fig. 1 and 8, the upper rows of terminals 16 are identical in structure and are arranged at a first pitch P1 in the first direction D1 (the upper rows of fixing holes 122 are also identical), and the lower rows of terminals 18 are identical in structure and are arranged at a second pitch P2 in the first direction D1 (the lower rows of fixing holes 124 are also identical). The first pitch P1 is the same as the second pitch P2. However, this is not a limitation in practice, and for example, the upper row terminals 16 and the lower row terminals 18 are arranged at different pitches in the first direction D1. In addition, although the electrical connector 1 with double rows of terminals is taken as an example for description, the description can be applied to the electrical connector with single row of terminals. Although the female-side and board-side electrical connectors (i.e., the electrical connector 1) are described above as an example, in practice, the above description is also applicable to a male-side and cable connector, and even an adapter, which is not described herein.

In addition, in the present embodiment, the upper row terminals 16 are plate-shaped structures, which can be cut from a metal plate, and the plate-shaped structures extend parallel to the second direction D2 and the third direction D3, so that the upper row terminals 16 are disposed on the insulating body 12 in parallel and non-coplanar manner; in practice, however, the upper row of terminals 16 may be implemented by a bent plate-like structure instead. The lower row terminals 18 are also the same and will not be described in detail. Referring to fig. 9 and fig. 10, only the structure of a simplified variation of the electrical connector 1 is shown, and for simplicity, the structure of a single row of terminals is taken as an example. As shown in fig. 9 and 10, the structure of the terminal 19 is equivalent to that of the upper row terminal 16 (or the lower row terminal 18) for simplification, so that other descriptions (including a variation description) about the terminal 19 (and the insulating body 13 combined therewith) can refer to the above description about the upper row terminal 16 (or the lower row terminal 18), and are not repeated herein. The terminal 19 includes a contact portion 192, a fixing portion 194 and a connecting portion 196, wherein the contact portion 192 and the connecting portion 196 extend from two opposite ends of the fixing portion 194 in the third direction D3. The fixing portion 194 has a first side surface 194a and a second side surface 194b opposite to the first side surface 194a in the first direction D1, the fixing portion 194 includes a body 1942, an abutting portion 1944 and a through hole 1946, the abutting portion 1944 is connected to the body 1942 and protrudes in the second direction D2, the through hole 1946 is located in the abutting portion 1944 and penetrates through the first side surface 194a and the second side surface 194b, wherein the fixing portion 194 is fixed in the fixing hole 132 of the insulating body 13 through the abutting portion 1944. The fixing hole 132 has a first inner sidewall 1322 facing the first side surface 194a and a second inner sidewall 1324 facing the second side surface 194b, the first side surface 194a is separated from the first inner sidewall 1322 by a first distance W1', the second side surface 194b is separated from the second inner sidewall 1324 by a second distance W2', and the sum of the first distance W1' and the second distance W2' is greater than one third of an outer diameter W0' of the fixing portion 194 in the first direction D1. The terminals 19 are bent in a plate shape (bent perpendicular to the second direction D2), and two adjacent terminals 19 are arranged (or coplanar) in the second direction D2 and fixed in the corresponding fixing holes 132. This structure facilitates the terminals 19 to be manufactured by a continuous stamping method (i.e., the terminals 19 are all connected to a strip of material, as shown by the dotted lines in fig. 9), and facilitates the simultaneous insertion of a plurality of terminals 19 into the fixing holes 132 of the insulative housing 13 (as shown by the insertion direction of the arrows in fig. 9), which can reduce the assembly cost. In practice, the terminals 19 and the mating insulative housing 13 can be extended to a dual-row terminal structure based on the above description of the electrical connector 1, and are not described in detail herein.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and all equivalent changes and modifications made by the claims of the present invention should be covered by the scope of the present invention.

Claims

1. An electrical connector, comprising:

the insulating body is provided with a first fixing hole, and the first fixing hole is provided with a first inner side wall and a second inner side wall opposite to the first inner side wall; and

a first terminal including a contact portion, a fixing portion and a connecting portion, the contact portion and the connecting portion respectively extending from the fixing portion and exposing out of the insulating body, the fixing portion having a first side and a second side opposite to the first side in a first direction, the fixing portion having a first through hole, the fixing portion being fixed in the first fixing hole, the first through hole being located in the first fixing hole, the first side facing the first inner sidewall and spaced from the first inner sidewall by a first distance, the second side facing the second inner sidewall and spaced from the second inner sidewall by a second distance;

the fixing part comprises a first abutting part, the first abutting part protrudes in a second direction perpendicular to the first direction and abuts against the first fixing hole, and the first through hole is located in the first abutting part;

the fixing part comprises a body, the body extends perpendicular to the first direction and the second direction and is connected with the first abutting part, and the aperture of the first through hole in the second direction is larger than the outer diameter of the body in the second direction.

2. The electrical connector of claim 1, wherein the first through hole penetrates the first side surface and the second side surface along the first direction.

3. The electrical connector of claim 1, wherein a sum of the first pitch and the second pitch is greater than one third of an outer diameter of the fixing portion in the first direction.

4. The electrical connector of claim 1, wherein the fixing portion further comprises a second abutting portion, the body is connected to the second abutting portion, the second abutting portion protrudes in the second direction and abuts against the first fixing hole, the body is loosely fitted in the first fixing hole, the second abutting portion is located between the first abutting portion and the contact portion, and an outer diameter of the first abutting portion in the second direction is larger than an outer diameter of the second abutting portion in the second direction.

5. The electrical connector of claim 4, wherein the fixing portion has a second through hole located at the second abutting portion.

6. The electrical connector of claim 5, wherein the first via is larger than the second via.

7. The electrical connector of claim 1, wherein the fixing portion extends in a third direction perpendicular to the first direction, and the contact portion and the connecting portion extend from opposite ends of the fixing portion in the third direction.

8. The electrical connector of claim 1, further comprising a second terminal identical to the first terminal, wherein the housing has a second fixing hole identical to the first fixing hole, and the second terminal is fixed to the second fixing hole adjacent to the first terminal in the first direction.

9. The electrical connector of claim 1, further comprising a second terminal identical to the first terminal, wherein the housing has a second fixing hole identical to the first fixing hole, and the second terminal is fixed to the second fixing hole adjacent to the first terminal in a direction perpendicular to the first direction.

10. The electrical connector of claim 1, further comprising a rear cover, wherein the housing has a front side and a rear side, the contact portion is exposed from the front side of the housing, the connecting portion is exposed from the rear side of the housing, and the rear cover is assembled to the rear side to cover the first fixing hole and a portion of the connecting portion.

11. A terminal for use in an electrical connector, the terminal comprising:

the fixing part is provided with a first side surface and a second side surface opposite to the first side surface in a first direction and comprises a first abutting part and a first through hole, the first abutting part is protruded in a second direction perpendicular to the first direction, the first through hole is positioned in the first abutting part and penetrates through the first side surface and the second side surface, and the fixing part is fixed in the electric connector through the first abutting part;

a contact portion extending from the fixing portion; and

a connecting part extending from the fixing part;

12. The terminal of claim 11, wherein the fixing portion further comprises a second abutting portion, the body is connected to the second abutting portion, the second abutting portion is located between the first abutting portion and the contact portion, an outer diameter of the first abutting portion in the second direction is larger than an outer diameter of the second abutting portion in the second direction, and the fixing portion is fixed in the electrical connector through the first abutting portion and the second abutting portion.

13. The terminal of claim 12, wherein the fixing portion has a second through hole located at the second abutting portion.

14. The terminal of claim 13, wherein the first through hole is larger than the second through hole.

15. The terminal of claim 11, wherein the fixing portion extends in a third direction perpendicular to the first direction and the second direction, and the contact portion and the connecting portion extend from opposite ends of the fixing portion in the third direction.