Electrical connector

Abstract

An electrical connector includes an insulating body and a terminal arranged on the insulating body, wherein the terminal includes three independent first, second and third terminal parts. The first terminal part includes a first fixed part fixed to the insulating body, a first elastic part extending from the first fixed part to the upper surface of the insulating body, a first contact part and a first abutment part located at the end of the first elastic part. The second terminal part includes a second fixed part, a second elastic part, a second contact part and a second abutment part. The third terminal part includes a third fixed part fixed to the insulating body, a first lap part extending upward from the third fixed part, and a second lap part extending downward from the third fixed part. The first abutment part can abut against the first lap part, and the second abutment part can abut against the second lap part. The terminal of the present invention is assembled from three independent terminal parts, is not affected by the stamping process of the terminal, improves the mechanical structure of the terminal, and thus improves the mechanical and electrical properties of the terminal.

Description

[Technical field]

[0001] The invention relates to an electric connector which is used for loading a chip module. [Background technology]

[0002] An electrical connector disclosed in Chinese invention patent CN110098507A comprises: an insulating body provided with a receiving hole; the receiving hole receives a terminal and a conductor which are separately arranged, and the terminal comprises: a base, which is arranged in the corresponding receiving hole; two elastic arms, which are respectively bent and extended from the base, each elastic arm extends to form a contact portion, each contact portion extends to form an extension arm, the extension arm has a first side edge, a second side edge and a terminal edge, wherein each first side edge has an abutment portion for abutting and contacting with the corresponding conductor, each first side edge has a first guide portion extending between the corresponding contact portion and the abutment portion and a second guide portion extending between the corresponding abutment portion and the terminal edge. The setting of the first guide portion can facilitate the installation of the conductor and the terminal in sequence, and the setting of the second guide portion can facilitate the extension arm to guide the conductor when the contact portion is subjected to force, so that the abutment portion abuts and contacts with the conductor, and the terminal has multiple electrical paths, which can meet the high-frequency requirements of the terminal.

[0003] However, in order to ensure that the volume of the electrical connector is not increased while ensuring or improving the signal transmission speed of the electrical connector, the size of the terminal slot of the insulating body is usually kept unchanged or even further reduced. The size of the terminal slot usually limits the length of the upper and lower elastic arms of the conductive terminal, resulting in the upper and lower elastic arms being unable to achieve effective elastic deformation, thereby affecting the overall mechanical properties of the connector.

[0004] Therefore, it is necessary to provide an improved electrical connector to solve the above problems. [Summary of the invention]

[0005] The main purpose of the present invention is to provide an electrical connector which can improve both the mechanical and electrical properties of the terminal.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electrical connector, comprising an insulating body and a terminal arranged on the insulating body, the insulating body having an upper surface and a lower surface; the terminal comprising three independent first terminal parts, a second terminal part and a third terminal part; the first terminal part comprises a first fixed part fixed on the insulating body, a first elastic part extending from the first fixed part to the upper surface of the insulating body, a first contact part and a first abutting part located at the end of the first elastic part; the second terminal part comprises a second fixed part fixed on the insulating body, a second elastic part extending from the second fixed part to the lower surface of the insulating body, a second contact part and a second abutting part located at the end of the second elastic part; the third terminal part comprises a third fixed part fixed on the insulating body, a first overlapping part extending upward from the third fixed part, and a second overlapping part extending downward from the third fixed part, the first abutting part can abut on the first overlapping part, and the second abutting part can abut on the second overlapping part.

[0007] Compared with the prior art, the terminal of the present invention is assembled from three independent terminal parts, is not affected by the stamping process of the terminal, improves the mechanical structure of the terminal, and thus improves the mechanical and electrical properties of the terminal.

Brief Description of the Drawings

[0008] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0009] Figure 2 yes Figure 1 A three-dimensional image from another angle.

[0010] Figure 3 yes Figure 1 A three-dimensional view of a portion of the insulating body cut away along the dotted line AA to show the structures of the first and second terminal portions.

[0011] Figure 4 yes Figure 1 A portion of the three-dimensional portion of the insulating body is cut away along the dotted line BB to show the structure of the third terminal portion.

[0012] Figure 5 This is a three-dimensional diagram of the terminal.

[0013] Figure 6 yes Figure 5 A three-dimensional image from another angle.

[0014] Figure 7 yes Figure 5 Exploded three-dimensional diagram.

[0015] Figure 8 yes Figure 6 Exploded three-dimensional diagram.

[0016]

Component Symbol Description

[0017] Electrical connector 100 First terminal portion 20 Second terminal portion 30

[0018] Insulation body 10 First fixing portion 21 Second fixing portion 31

[0019] Upper surface 101 Vertical portion 211 Second elastic portion 32

[0020] Lower surface 102 Connecting portion 212 Second contact portion 33

[0021] Terminal hole 11 Barb 213 Second abutting portion 34

[0022] First fixing seam 12 First elastic portion 22 Third terminal portion 40

[0023] Second fixing slit 13 First contact portion 23 Third fixing portion 41

[0024] Protruding portion 15 First abutting portion 24 First overlapping portion 42

[0025] Terminal 20A Third abutting portion 25 Second bridging portion 43

[0026] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0027] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0028] Ginseng Figure 1-8 The electrical connector 100 of the present invention is a chip connector for loading a chip module, which includes an insulating body 10 and a terminal 20A disposed on the insulating body. In actual products, the insulating body is provided with thousands of terminal holes, and the thousands of terminals are received in the corresponding terminal holes one by one. To simplify the drawing, the drawing of the present invention only shows a part of the insulating body 10, on which only one terminal hole 11 is provided. The insulating body 10 has an upper surface 101 and a lower surface 102 that are opposite to each other.

[0029] Combination Figure 3-4 , see Figure 7-8The terminal 20A includes three independent first terminal parts 20, a second terminal part 30 and a third terminal part 40. The first terminal part 20 includes a first fixed part 21 fixed to the insulating body 10, a first elastic part 22 extending from the first fixed part to the upper surface 101 of the insulating body, a first contact part 23 and a first abutment part 24 located at the end of the first elastic part. The second terminal part 30 includes a second fixed part 31 fixed to the insulating body 10, a second elastic part 32 extending from the second fixed part to the lower surface 102 of the insulating body, a second contact part 33 and a second abutment part 34 located at the end of the second elastic part. The third terminal part 40 includes a third fixed part 41 fixed to the insulating body 10, a first lap part 42 extending upward from the third fixed part, and a second lap part 43 extending downward from the third fixed part. After the terminal parts are assembled together, the reference Figure 5-6 As shown, the first abutting portion 24 abuts against the first overlapping portion 42, and the second abutting portion 34 abuts against the second overlapping portion 43. When the first and second contact portions are subjected to force, the first abutting portion 24 moves along the first overlapping portion 41 to contact, and the second abutting portion 34 moves along the second overlapping portion 43 to contact. In other embodiments, when no external force is applied, the first and second abutting portions 24 and 34 do not contact the first and second overlapping portions 42 and 43. After the force is applied, the first and second abutting portions 24 and 34 contact the first and second overlapping portions 42 and 43 and can move along the first and second overlapping portions to contact. In summary, the first abutting portion 24 can abut against the first overlapping portion 42, and the second abutting portion 34 can abut against the second overlapping portion 43. The three terminal portions are stamped independently of each other, and the third terminal portion can be designed to be wider to provide a short and relatively wide current path. The third terminal portion has no mechanical strength requirements, and lower cost materials can be used to meet the requirements, such as different materials and plate thicknesses. In this way, the high-frequency impedance matching has more design flexibility and is easier to manufacture.

[0030] The first overlap portion 42 extends obliquely toward the first elastic portion 22, and the first abutting portion 24 is bent downward from the end of the first contact portion 23 and pressed against the first overlap portion 42. Similarly, the second overlap portion 43 extends obliquely toward the second elastic portion 32, and the second abutting portion 34 is bent upward from the end of the second contact portion and pressed against the second overlap portion 43. The first and second overlap portions 42 and 43 are inclined structures, and the first and second abutting portions 24 and 34 are spoon-shaped structures, which can slide on the inclined structures of the first and second overlap portions. The metal plate surface size of the inclined surface structure and the spoon-shaped structure is larger than the metal plate surface size of the contact portion, so as to maintain the reliability of sliding contact.

[0031] Furthermore, the first and second fixing parts 21 and 31 are electrically connected to each other, for example, one of the first and second fixing parts extends out a third abutting part 25, and the third abutting part 25 elastically abuts against the other of the first and second fixing parts. It can be seen that at this time, the terminal has two conductive paths between the first and second contact parts, one of which goes through the first and second fixing parts, and the other goes through the first and second abutting parts, the overlapping part and the third fixing part, forming a parallel structure, shortening the electrical path, effectively reducing high-frequency loss and providing a better high-frequency impedance matching, thereby improving high-frequency and high-speed signal transmission performance.

[0032] In a specific embodiment, the third abutting portion 25 extends downward from the lower edge of the first fixing portion 21, and the third abutting portion 25 is wavy-shaped, which increases elasticity and helps it to elastically press against the second fixing portion 31. The third abutting portion can also be an inclined sheet structure extending obliquely. The third abutting portion 25 is located between the second fixing portion 31 and the third fixing portion 41.

[0033] Ginseng Figure 3-4 , the first terminal part 20 is assembled downward from the upper surface 101 of the insulating body 10 and fixed, the second terminal part 30 is assembled upward from the lower surface 102 of the insulating body and fixed, and the third terminal part 40 can be installed from the upper surface or the lower surface according to actual conditions. Specifically, the insulating body 10 is provided with a terminal hole 11, and the first fixing slit 12 and the second fixing slit 13 are provided at the opposite inner walls of the terminal hole 11. The first and second fixing slits and the terminal hole penetrate each other, and both penetrate the insulating body upward and downward. The first and second fixing parts 21 and 31 are fixed to the first fixing slit 12 at the same time, and the first and second elastic parts pass through the terminal hole 11 respectively to reach the upper and lower surfaces of the insulating body. The third fixing part 41 is fixed to the second fixing slit 31. The second fixing part 31 is located directly below the first fixing part 21. Both sides of the first, second and third fixing parts are provided with protruding barbs 213, which play a hard interference role with the fixing slits.

[0034] Ginseng Figure 3 , 5As shown, the first fixing portion 21 is provided with a groove extending downward and its upper half is divided into two parts, forming a U-shape, namely, a vertical portion 211 and a connecting portion 212. The vertical portion 211 is formed after the connected material strip is cut, and is the material strip connecting portion. The connecting portion 212 is connected to the first elastic portion 22. One side of the connecting portion 212 is blocked in the first fixing seam 12, and a part is exposed in the part connected between the first fixing seam 12 and the terminal hole 11, which is prepared for the elastic deformation of the first elastic portion and also for the elastic deformation of the terminal. Similarly, the second terminal portion is also provided with a vertical portion and a connecting portion, and the third terminal portion is provided with two vertical portions and a connecting portion. The principle is the same and will not be described in detail. The insulating body 10 has a pair of protrusions 15 extending from its upper and lower surfaces respectively. The protrusions are located on both sides of the extension direction of the first and second elastic portions 22 and 32, respectively. The protrusions 15 are the supporting surface for the chip module and protect the elastic portion at the same time.

[0035] 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 insulating body and a terminal disposed on the insulating body, wherein the insulating body has an upper surface and a lower surface; characterized in that: The terminal includes three independent first terminal parts, a second terminal part and a third terminal part; the first terminal part includes a first fixed part fixed on the insulating body, a first elastic part extending from the first fixed part to the upper surface of the insulating body, a first contact part and a first abutting part located at the end of the first elastic part; the second terminal part includes a second fixed part fixed on the insulating body, a second elastic part extending from the second fixed part to the lower surface of the insulating body, a second contact part and a second abutting part located at the end of the second elastic part; the third terminal part includes a third fixed part fixed on the insulating body, a first overlapping part extending upward from the third fixed part, and a second overlapping part extending downward from the third fixed part, the first abutting part can abut on the first overlapping part, and the second abutting part can abut on the second overlapping part.

2. The electrical connector according to claim 1, wherein: The first and second fixing parts are electrically connected to each other.

3. The electrical connector according to claim 2, wherein: A third abutting portion extends from one of the first and second fixing portions, and the third abutting portion elastically presses against the other of the first and second fixing portions.

4. The electrical connector according to claim 3, wherein: The third abutting portion is bent in a wave shape.

5. The electrical connector according to claim 3, wherein: The second fixing portion is located directly below the first fixing portion, and the third contact portion is located between the second fixing portion and the third fixing portion.

6. The electrical connector according to claim 1, wherein: The first overlapping portion extends obliquely toward the first elastic portion, and the first abutting portion is bent downward from the end of the first contact portion and pressed against the first overlapping portion; the second overlapping portion extends obliquely toward the second elastic portion, and the second abutting portion is bent upward from the end of the first contact portion and pressed against the second overlapping portion.

7. The electrical connector according to claim 6, wherein: When the first and second contact portions are subjected to force, the first abutting portion moves along the first overlapping portion, and the second abutting portion moves along the second overlapping portion.

8. The electrical connector according to claim 1, wherein: The insulating body is provided with a terminal hole, and a first fixing slit and a second fixing slit are provided at the opposite inner walls of the terminal hole. The first and second fixing slits and the terminal hole penetrate each other, the first and second fixing parts are fixed to the first fixing slit at the same time, and the first and second elastic parts respectively pass through the terminal hole to reach the upper and lower surfaces of the insulating body; the third fixing part is fixed to the second fixing slit.

9. The electrical connector according to claim 8, wherein: The insulating body has a pair of protrusions extending from the upper and lower surfaces thereof, respectively. The pair of protrusions are located at two lateral sides of the extending direction of the first and second elastic parts, respectively.

10. The electrical connector according to claim 1, wherein: Both side edges of the first, second and third fixing parts are provided with protruding barbs.

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