Electric connector

Abstract

An electric connector comprises an insulator and a plurality of terminals, the insulator is provided with an upper surface, a lower surface and terminal grooves penetrating through the upper surface and the lower surface, the terminals are arranged in the corresponding terminal grooves in a one-to-one mode, and each terminal comprises a body part and an elastic arm extending upwards from the body part in an inclined mode. The elastic arm is provided with a contact part positioned above the upper surface of the insulator; the terminal comprises an additional part integrally arranged with the body part, the additional part and the body part are arranged face to face at an interval, and the additional part is located below the elastic arm. The impedance of the terminal is reduced by arranging the additional part which is spaced from the body part on the opposite side of the body part, and compared with the mode that the impedance of the terminal is reduced through various bends in the prior art, the terminal is simple in structure and low in manufacturing cost.

Description

[Technical field]

[0001] The invention relates to an electric connector. [Background technology]

[0002] The transmission speeds of electrical connectors currently under development are getting higher and higher. The transmission bandwidth of some connectors has even reached 128Gbps. In high-frequency connectors with such high transmission speeds, high-speed transmission has high requirements for terminal impedance. However, in order to reduce the impedance of the terminals, the connectors in the prior art need to be bent in multiple places on the terminals, which will undoubtedly greatly increase the stamping and electroplating costs of the terminals.

[0003] Therefore, it is necessary to provide an improved electrical connector to solve the above problems. [Summary of the invention]

[0004] The main purpose of the present invention is to provide an electrical connector with a simple structure.

[0005] In order to solve the above technical problems, the present invention can adopt the following technical solutions:

[0006] An electrical connector includes an insulator and a plurality of terminals, wherein the insulator is provided with an upper surface, a lower surface and terminal grooves penetrating the upper and lower surfaces, and the terminals are arranged one by one in the corresponding terminal grooves, and the terminals include a main body portion and an elastic arm extending obliquely upward from the main body portion, and the elastic arm is provided with a contact portion located above the upper surface of the insulator; the terminal includes an additional portion integrally arranged with the main body portion, the additional portion and the main body portion are face to face with each other and are arranged at a distance, and the additional portion is located below the elastic arm.

[0007] Preferably, the elastic arm is provided with a slot penetrating in the up-down direction; when looking from top to bottom, the upper end of the additional part is exposed in the slot.

[0008] Preferably, the terminal is formed by stamping a metal sheet, the main body is vertically arranged, the additional portion and the main body are parallel to each other, and the distance between the two is not less than 3 times the thickness of the metal sheet.

[0009] Preferably, the distance between the additional portion and the main body portion is between 4 and 5 times the thickness of the metal sheet.

[0010] Preferably, the thickness of the metal sheet is between 0.04 mm and 0.06 mm, and the distance between the additional portion and the main body portion is between 0.20 mm and 0.25 mm.

[0011] Preferably, the height of the additional portion is not less than one third of the height of the main body portion.

[0012] Preferably, the additional portion is formed by folding back from the lower end of the main body portion and extending upward.

[0013] Preferably, the main body portion and the additional portion are connected by a first connecting portion, and the first connecting portion is torn to form a pin.

[0014] Preferably, the ends of the pins form horizontal pads.

[0015] Preferably, the additional portion is formed by bending and extending the side edge of the main body toward the front side of the main body.

[0016] Preferably, the additional portion and the main body portion are connected via a second connecting portion, and along the up-down direction, the height of the second connecting portion is less than half of the height of the main body portion.

[0017] Preferably, the additional portion and the main body are connected via a second connecting portion, the second connecting portion is arranged close to the lower end of the main body, the width of the main body close to the elastic arm is d1, the width of the main body close to the second connecting portion is d2, wherein d1 is greater than d2.

[0018] The impedance of the terminal is reduced by arranging the additional part and the main body part relative to each other. Compared with the prior art in which impedance is reduced by arranging multiple bends, the terminal of the present invention has a simple structure, is easy to process and has a low manufacturing cost.

Brief Description of the Drawings

[0019] Figure 1 FIG. 4 is a perspective view of an electrical connector according to a first embodiment of the present invention.

[0020] Figure 2 for Figure 1 A stereogram from another angle.

[0021] Figure 3 for Figure 1 Exploded perspective view of an electrical connector.

[0022] Figure 4 for Figure 1 Cross-sectional view of the electrical connector along line AA.

[0023] Figure 5 for Figure 2 Exploded perspective view of an electrical connector.

[0024] Figure 6 for Figure 5 A three-dimensional view of the middle terminal.

[0025] Figure 7 for Figure 6 Side view of the terminal.

[0026] Figure 8 for Figure 6Rear view of the terminal.

[0027] Fig. 9 FIG. 4 is a perspective view of an electrical connector according to a second embodiment of the present invention.

[0028] Fig.10 for Fig. 9 Exploded perspective view of an electrical connector.

[0029] Fig.11 for Fig.10 Exploded three-dimensional image from another angle.

[0030] Fig.12 for Fig.11 A three-dimensional view of the middle terminal.

[0031] Fig.13 for Fig.12 Side view of the middle terminal.

[0032] Fig.14 for Fig. 9 Section view along line BB.

[0033] Fig.15 for Fig.12 Rear view of the terminal.

[0034] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings.

[0035]

Component Symbol Description

[0036] Electrical connector 100 Elastic portion 220

[0037] Insulator 10 Inclined portion 221

[0038] Upper surface 11 horizontal portion 222

[0039] Lower surface 12 Contact portion 23

[0040] Terminal groove 13 Additional portion 24, 24a

[0041] Fixed seam 131 Slot 25

[0042] Accommodating groove 132 First connecting portion 26

[0043] Terminal 20 Pin 27, 27a

[0044] Main body 21, 21a Solder pad 270

[0045] Elastic arm 22 Second connecting portion 28 [Specific implementation method]

[0046] See also Figure 1-4As shown, the electrical connector 100 of the first embodiment of the present invention is used to electrically connect a chip (not shown in the figure) to a circuit board (not shown in the figure), and includes an insulator 10 and a plurality of terminals 20. The insulator 10 is provided with an upper surface 11, a lower surface 12 and terminal slots 13 penetrating the upper and lower surfaces 11 and 12. The terminals 20 are arranged one by one in the corresponding terminal slots 13. The terminals 20 include a main body 21, and elastic arms 22 extending upwardly obliquely from the main body 21. The elastic arms 22 are provided with contact portions 23 located above the upper surface 11. The terminal 20 further includes an additional portion 24 integrally provided with the main body 21, and the additional portion 24 is located below the elastic arm 22. The additional portion 24 and the main body 21 are arranged face to face and spaced apart to reduce the impedance of the terminal. The elastic arm 22 is provided with a slot 25 penetrating in the vertical direction. When viewed from top to bottom, the upper end of the additional portion 24 is exposed in the slot 25, so that the fixture can extend into the slot 25 to clamp the terminal 20 to achieve the installation of the terminal, thereby facilitating the installation of the terminal 20. Figure 4 , 5 As shown, the terminal slot 13 includes a fixing slot 131 and a receiving slot 132 that are connected to each other, the main body 21 is inserted and fixed in the fixing slot 131, the elastic arm 22 extends out of the fixing slot 131, and the additional portion 24 is received in the receiving slot 132. Its transverse width is small and does not form a fixed relationship with the side wall of the terminal slot 13. One side of the main body 21 is a material strip cutting surface 211 after the material strip is cut. In this embodiment, the material strip has been cut before the terminal is assembled into the terminal slot 13 of the insulator 10.

[0047] Further integration Figure 7 In this embodiment, the terminal 20 is formed by stamping a metal sheet, the main body 21 and the additional part 24 are both vertically arranged, parallel to each other and the distance between them is d1, d1 is not less than 3 times the thickness of the metal sheet, in this embodiment, d1 is not less than 0.15 mm; preferably, the distance d1 between the additional part 24 and the main body 21 is between 4 and 5 times the thickness of the metal sheet, in this embodiment, the thickness of the metal sheet is between 0.04 mm and 0.06 mm, and d1 is between 0.2 mm and 0.25 mm; more preferably, the thickness of the metal sheet is 0.05 mm, in this embodiment, the distance d1 between the main body 21 and the additional part 24 is 0.22 mm. It should be particularly noted that in actual products, the insulator 10 of the connector 100 has thousands of terminals 20, and the drawings of this application only schematically show the insulator 10 and a part of the terminal 20, and do not show the entire insulator 10. It is understandable that, for the installation of the terminal 20 in the insulator 10 , one terminal 20 may be clamped at a time by a jig to be installed in the insulator 10 , or 2-3 terminals or more may be clamped at a time to be installed in the insulator 10 .

[0048] See also Figure 5-8 As shown, in this embodiment, the additional portion 24 is formed by folding the lower end of the main body 21 upward, and the height of the additional portion 24 is not less than one-third of the height of the main body 21. Preferably, the height of the additional portion 24 exceeds the height of the main body 21, and it extends upward to at least partially overlap with the elastic arm 22 in the up and down direction. The additional portion 24 and the main body 21 are connected by a first connecting portion 26 that is bent upward, and the first connecting portion 26 is torn to form a pin 27, and a horizontal pad 270 is formed at the end of the pin 27. In this embodiment, the width L1 of the additional portion 24 is smaller than the width L2 of the main body 21, and the additional portion 24 is located directly in front of the main body 21, and the distances from the two side edges of the additional portion 24 to the two side edges of the main body 21 are equal. In this embodiment, the elastic arm 22 includes an elastic portion 220 and a contact portion 23, the contact portion 23 is located at the end of the elastic portion 220, and the slot 25 is provided on the elastic portion 220. In order to better realize the slotting in the elastic portion 220, the width L3 of the widest part of the elastic portion 220 is greater than the width L2 of the main body 21. The elastic portion 220 includes an inclined portion 221 connected to the main body 21 and extending obliquely upward, and a horizontal portion 222 extending from the inclined portion 221 in the horizontal direction, and the slot 25 spans the inclined portion 221 and the horizontal portion 222. It can be understood that in this embodiment, since the thickness of the metal sheet forming the terminal is about 0.05 mm, and the width L3 of the widest part of the elastic portion 220 is greater than the width L2 of the main body 21, the elastic portion 220 needs to be elastically deformed when the force is relatively large. The existence of the slot 25 can not only be used to accommodate the fixture, but also improve the elasticity of the elastic arm 22.

[0049] See also Figure 9-15 The insulator and terminal structure of the electrical connector 200 of the second embodiment of the present invention are substantially the same as those of the first embodiment. Only the main differences are described below. The same components and symbols are used for the same structures and are not described in detail. In this embodiment, the terminal 20 is different from the terminal 20 of the first embodiment in that the additional portion 24a is formed by bending and extending the side edge of the main body 21a toward the front side of the main body 21a. In this way, the additional portion 24a and the main body 21a are connected by the second connecting portion 28. In the vertical direction, the height h1 of the second connecting portion 28 is less than half of the height h2 of the main body 21a. The second connecting portion 28 is arranged near the lower end of the main body 21a. The width of the main body 21a near the elastic arm 22 is d2, and the width of the main body 21a corresponding to the second connecting portion 28 is d3, and d2 is greater than d3. In this way, the second connecting portion 28 is located below the main body 21a with a width of d2, that is, the side edge of the main body 21a with a width of d2 extends outward beyond the second connecting portion 28 below it. In addition, different from the first embodiment, in this embodiment, the pin 27 a is formed by extending downward from the lower terminal of the body portion 21 a .

[0050] The above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and the contents of the present invention should still fall within the scope of the present invention.

Claims

1. An electrical connector, comprising an insulator and a plurality of terminals, wherein the insulator is provided with an upper surface, a lower surface and terminal grooves penetrating the upper and lower surfaces, wherein the terminals are arranged one by one in the corresponding terminal grooves, wherein the terminals comprise a body portion, an elastic arm extending obliquely upward from the body portion, wherein the elastic arm is provided with a contact portion located above the upper surface of the insulator; characterized in that: The terminal comprises an additional portion integrally arranged with the main body, the additional portion and the main body face each other and are arranged at an interval, and the additional portion is located below the elastic arm.

2. The electrical connector according to claim 1, wherein: The elastic arm is provided with a slot penetrating in the up-down direction; when viewed from top to bottom, the upper end of the additional part is exposed in the slot.

3. The electrical connector according to claim 1, wherein: The terminal is formed by stamping a metal sheet, the main body is vertically arranged, the additional part and the main body are parallel to each other, and the distance between them is not less than 3 times the thickness of the metal sheet.

4. The electrical connector according to claim 3, wherein: The distance between the additional portion and the main body portion is between 4 and 5 times the thickness of the metal sheet.

5. The electrical connector according to claim 4, wherein: The thickness of the metal sheet is between 0.04 mm and 0.06 mm, and the distance between the additional part and the main body part is between 0.20 mm and 0.25 mm.

6. The electrical connector according to claim 1, wherein: The height of the additional portion is not less than one third of the height of the main body portion.

7. The electrical connector according to claim 1, wherein: The additional portion is formed by folding back from the lower end of the main body portion and extending upward.

8. The electrical connector according to claim 7, wherein: The main body portion and the additional portion are connected by a first connecting portion, and the first connecting portion is torn to form a pin.

9. The electrical connector according to claim 8, wherein: The ends of the pins form horizontal pads.

10. The electrical connector according to claim 1, wherein: The additional portion is formed by bending and extending the side edge of the main body toward the front side of the main body.

11. The electrical connector according to claim 10, wherein: The additional portion and the main body portion are connected via a second connecting portion, and along the up-down direction, the height of the second connecting portion is less than half of the height of the main body portion.

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