Electrical connector

Abstract

An electrical connector includes an insulating body and a plurality of first terminals. The insulating body includes a base and a docking tongue plate extending forward from the base. The base is provided with a receiving space at its rear end face that penetrates downward and backward. The first terminal includes a holding portion fixed to the base, a contact portion extending forward from the holding portion, a connecting portion extending backward from the holding portion, and a pin extending downward and bent from the connecting portion. The connecting portion and the pin pass through the receiving space. The electrical connector further includes a first insulating block and a second insulating block received in the receiving space. The pins of the first terminals pass through the through holes provided in the second insulating block one by one. A plurality of grooves are provided on the lower surface of the first insulating block or the upper surface of the second insulating block. The connecting portions of the first terminals pass through the grooves one by one. With such a setting, the high-frequency setting of the electrical connector is improved.

Description

Technical Field

[0001] The present invention relates to an electrical connector, and more particularly to an electrical connector with excellent high-frequency performance.

Background Art

[0002] As a High Definition Multimedia Interface, with the increasing demand for the transmission speed of video information, the current HDMI version has been updated to HDMI 2.1 version, and future versions will also be updated to meet higher transmission speed requirements. At the same time, the self-structure of the original old version of the HDMI connector can no longer meet the current and even future high-frequency performance requirements.

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

Summary of the Invention

[0004] The main object of the present invention is to provide an electrical connector with better high-frequency performance.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An electrical connector includes an insulating body and a plurality of first terminals. The insulating body includes a base and a docking tongue plate extending forward from the base. The base is provided with a receiving space at its rear end surface that penetrates downward and backward. The first terminal includes a holding portion fixed to the base, a contact portion extending forward from the holding portion, a connecting portion extending backward from the holding portion, and a pin extending downward and bent from the connecting portion. The connecting portion and the pin pass through the receiving space. The electrical connector further includes a first insulating block and a second insulating block received in the receiving space. The pins of the first terminals pass through the through holes provided in the second insulating block one by one. A plurality of grooves are provided on the lower surface of the first insulating block or the upper surface of the second insulating block. The connecting portions of the first terminals pass through the grooves one by one.

[0007] Compared with the prior art, the present invention improves the high-frequency performance by passing the connecting portion of the first terminal through the groove.

Description of the Drawings

[0008] Figure 1 is a perspective view of the electrical connector of the present invention.

[0009] Figure 2 is Figure 1 a perspective view shown from another angle.

[0010] Figure 3 is Figure 2 a perspective exploded view after removing the metal housing.

[0011] Figure 4 Yes Figure 1 Exploded view after removing the metal housing.

[0012] Figure 5 Isometric view of the first insulating block.

[0013] Figure 6 Isometric view of the first insulating block and the first and second terminals, wherein the second terminal has its signal terminal removed.

[0014] Figure 7 Isometric view of the second insulating block and the first and second terminals, wherein the first terminal has its signal terminal removed.

[0015] Figure 8 Exploded isometric view of the first terminal and the second terminal.

[0016] Figure 9 Yes Figure 1 Cross-sectional view taken along the dashed line A-A as shown.

[0017] Figure 10 Yes Figure 1 Cross-sectional view taken along the dashed line B-B as shown.

Detailed implementation manner

[0018] Refer Figures 1 to 10 As shown, the present invention is an electrical connector 100, including an insulating body 1, a plurality of first terminals 2, and a metal housing 6 covering the insulating body 1. The insulating body 1 includes a base 11 and a docking tongue plate 12 extending forward from the base 11. The first terminals 2 are arranged in a row on the upper surface of the docking tongue plate 11. The base 11 is provided with a receiving space 110 that penetrates downward and backward at its rear end surface. The first terminal 2 includes a holding portion 22 fixed to the base 11, a contact portion 21 extending forward from the holding portion 22, a connecting portion 23 extending backward from the holding portion 22, and a pin 24 extending downward and bent from the connecting portion. The connecting portion 23 and the pin 24 pass through the receiving space 110. The electrical connector 100 includes a first insulating block 4 and a second insulating block 5 received in the receiving space 110. The pins 24 of the first terminals 1 pass through the through holes 51 provided in the second insulating block 5 one by one. A plurality of grooves are provided on the lower surface of the first insulating block 4 or the upper surface of the second insulating block 5. The connecting portions 23 of the first terminals 2 pass through the grooves one by one. With such an arrangement, by passing the connecting portions 23 of the first terminals 2 through the grooves, the high-frequency performance of the electrical connector is improved. The setting of the grooves in this embodiment will be specifically introduced below.

[0019] In this embodiment, the contact portions 21 of the first terminals 2 are arranged on the upper surface of the docking tongue plate 12. A plurality of first grooves 41 are provided on the lower surface of the first insulating block 4, and the connecting portions 23 of the first terminals 2 are respectively received in the corresponding first grooves 41. The plurality of first terminals 2 include signal terminals 25 and ground terminals 26. The connecting portion 23 of the signal terminal 25 is bent downward from the end of the self-retaining portion 22 and then extends horizontally backward. The connecting portion 23 of the ground terminal 26 extends horizontally backward directly from the end of the self-retaining portion 22. The connecting portion 23 extends along the inner top surface of the first groove 41. The first groove 41 through which the connecting portion 23 of the signal terminal 25 passes is relatively shallow, while the first groove 41 through which the connecting portion 23 of the ground terminal 26 passes is relatively deep. Figure 5 Clearly visible.

[0020] The electrical connector 100 further includes a row of second terminals 3. The second terminals 3 include a self-retaining portion 32 fixed to the base 11, a contact portion 31 arranged on the lower surface of the docking tongue plate 12, and a pin 34 passing through the through hole 51 of the second insulating block 5. The row of second terminals 5 includes signal terminals 35 and ground terminals 36. The pin 34 of the signal terminal 35 is formed by directly bending downward from the self-retaining portion 32. The ground terminal 36 includes a connecting portion 33 that is bent downward from the end of the self-retaining portion 32 and then extends horizontally backward, and the pin 34 is formed by bending downward from the connecting portion 33. The upper surface of the second insulating block 5 is provided with a second groove 52. The second groove 52 penetrates the outer surface of the second insulating block 5 forward and upward. The connecting portion 33 of the ground terminal 36 is received in the second groove 52. The first insulating block 4 is located above the second insulating block 5 in the accommodation space 110. The pins 24 of the signal terminals 25 in the first terminals 2 and the pins 34 of the ground terminals 35 in the second terminals 3 are both substantially Z-shaped in the horizontal projection with their respective corresponding contact portions. It should be particularly noted that the above embodiments are only the preferred embodiments of the present invention. The connecting portion of the first terminal can either pass through the groove provided on the first insulating block as shown in each of the above embodiments, or make each connecting portion of the first terminal pass through the groove provided on the second insulating block, or even part of the connecting portions of the first terminals pass through the groove provided on the first insulating block, and the other part of the connecting portions of the first terminals pass through the groove provided on the second insulating block.

[0021] Refer to Figure 5 and Figure 6 , the first insulating block 4 is provided with a plurality of abutting ribs 43 protruding downward. The abutting ribs 43 respectively abut against the connecting portions 33 of the ground terminals 36 in the second terminals 3. Adjacent two first grooves 41 are separated by a partition wall 42. At the same time, both side surfaces at the front end of the partition wall 42 are inclined surfaces for guiding installation, so that the front end of the first groove 41 forms a flared shape, which is convenient for assembly. The above-mentioned abutting ribs 43 are formed by further extending downward from the partition rib 42. The abutting ribs 43 extend into the second groove 52 to abut against the connecting portions 33 of the ground terminals 36 in the second terminals 3.

[0022] The pin 24 of the signal terminal 25 in the first terminal 2 is located at the rear row, the pin 34 of the signal terminal 35 in the second terminal 3 is located at the front row, and the pins of the ground terminals 26 and 36 in the first and second terminals 2 and 3 are located at the middle row, thus forming three rows of pins including the front, middle, and rear rows. The connecting portion 23 of the ground terminal 26 in the first terminal 2 is located above the top surface of the second insulating block 5, while the connecting portion 33 of the ground terminal 36 in the second terminal 3 is located below the top surface of the second insulating block 5. The pins 24 and 34 of the signal terminals 25 and 35 of the first and second terminals 2 and 3 are laterally offset relative to their contact portions 21 and 31, while the contact portions 21 and 31 of the ground terminals 26 and 36 of the first and second terminals 2 and 3 are on the same center line as the pins 24 and 34. The upper parts of the pins 24 and 34 of the signal terminals 25 and 35 in the first and second terminals 2 and 3 have widened portions 251 and 351, and the bottom edges of the respective widened portions 251 and 351 gradually become narrower so that the adjacent widened portions form an inverted V shape, and the lower parts of the pins 24 and 34 pass downward through the through holes 51 in the second insulating block 5, Figure 9 which is clearly visible. The metal housing 6 surrounds the insulating body 1 to form a top wall 61, a bottom wall 62, and two side walls 63 connecting the top wall 61 and the bottom wall 62. The notch 611 provided at the rear edge of the top wall 61 cooperates with the convex block 111 protruding from the top of the base 11, and the middle part of the rear edge of the bottom wall 62 further extends backward to form a fixing portion 621, and the fixing portion 621 is inserted into the fixing groove 112 opened at the bottom of the base 11 of the insulating body 1, Figure 9 which is clearly visible. The two sides of the first insulating block 4 are provided with horizontally extending first mounting portions 44, and the accommodating space 110 is provided with first mounting grooves 113 that interfere and fix with the first mounting portions 44. The two sides of the second insulating body 5 are provided with vertically extending second mounting portions 53, and the accommodating space 110 is provided with second mounting grooves 114 that interfere and fix with the second mounting portions 53.

[0023] Refer Figure 3 to this embodiment, the assembly sequence of the electrical connector is as follows.

[0024] In the first step, the first and second terminals 2 and 3 are inserted into the corresponding terminal grooves 120 provided on the docking tongue plate 12 from the accommodating space 110 and fixed to the insulating body 1.

[0025] In the second step, the first insulating block 4 is inserted into the accommodating space 110 from the rear to the front. The first grooves 41 correspond to the connecting portions 23 of the first terminals 2 one by one, so that the top surfaces of the connecting portions 23 of the first terminals 2 are received in the first grooves 41 on both sides, and the pins 24 of the first terminals 2 are in a suspended state. At the same time, the abutting ribs 43 slide through the gaps between two adjacent signal terminals 25 in the first terminals 2 to above the connecting portion 23 of the ground terminal 26 in the second terminals 2.

[0026] Step 3: Align the second insulating block 5 from bottom to top and insert it into the accommodation space 110 against the pins 24 and 34 of the first and second terminals 2 and 3. The widened portions 251 and 351 of the signal terminals 25 and 35 in the first and second terminals 2 and 3 are received in the through holes 51 of the second insulating block 5. The second groove 52 moves upward with the second insulating block 5 to the fixed position and receives the connecting portion 33 of the grounding terminal 36 in the second terminal 3.

[0027] Step 4: Fix the metal housing 6 to the insulating body 1 in the front-rear direction. The abutting piece 631 formed by the rearward extension of the side wall 63 is bent inward so as to be located at the rear side of the first mounting portion 44, preventing the first insulating block 4 from falling off backward. Figure 2 Clearly visible.

[0028] The first and second insulating blocks 4 and 5 have the same dielectric constant, but the dielectric constants of the first and second insulating blocks 4 and 5 are different from the dielectric constant of the insulating body 1, so that the high-frequency performance of the electrical connector 100 is better.

[0029] The above are only the preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby. That is, all simple equivalent changes and modifications made according to the claims of the present invention and the content of the specification of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. An electrical connector, comprising an insulating body and a plurality of first terminals. The insulating body includes a base and a docking tongue plate extending forward from the base. The base is provided with a receiving space at its rear end surface that penetrates downward and backward. The first terminal includes a holding portion fixed to the base, a contact portion extending forward from the holding portion, a connecting portion extending backward from the holding portion, and a pin extending downward and bent from the connecting portion. The connecting portion and the pin pass through the receiving space; characterized in that: The electrical connector further includes a first insulating block and a second insulating block received in the accommodation space. The pins of the first terminals respectively pass through through-holes provided in the second insulating block. A plurality of grooves are provided on the lower surface of the first insulating block or the upper surface of the second insulating block, and the connecting portions of the first terminals respectively pass through the grooves.

2. The electrical connector according to claim 1, characterized in that: The contact portions of the first terminals are arranged on the upper surface of the docking tongue plate. A first groove is provided on the lower surface of the first insulating block, and the connecting portions of the first terminals respectively pass through the first groove.

3. The electrical connector according to claim 2, characterized in that: A plurality of the first terminals include signal terminals and ground terminals. The connecting portion of the signal terminal is bent downward from the end of the holding portion and then extends horizontally backward. The connecting portion of the ground terminal extends horizontally backward directly from the end of the holding portion. The connecting portion extends along the inner top surface of the first groove.

4. The electrical connector according to claim 2, characterized in that: The electrical connector includes a row of second terminals. The second terminals include a holding portion fixed to the base, a contact portion arranged on the lower surface of the docking tongue plate, and pins passing through through-holes of the second insulating block. The row of second terminals includes signal terminals and ground terminals. The pins of the signal terminals are formed by directly bending downward from the holding portions of the signal terminals. The ground terminals include a connecting portion bent downward from the end of the holding portion of the ground terminal and then extending horizontally backward. The pins of the ground terminals are formed by bending downward from the connecting portions of the ground terminals. Second grooves are provided on the upper surface of the second insulating block, and the connecting portions of the ground terminals pass through the second grooves.

5. The electrical connector according to claim 4, characterized in that: The first insulating block is provided with a plurality of abutting ribs protruding downward, and the abutting ribs respectively abut against the connecting portions of the ground terminals in the second terminals.

6. The electrical connector according to claim 2, characterized in that: The electrical connector includes a row of second terminals. The second terminals have pins. The first and second terminals both include signal terminals and ground terminals. The pins of the signal terminals in the first terminals are located in the rear row, the pins of the signal terminals in the second terminals are located in the front row, and the pins of the ground terminals in the first and second terminals are located in the middle row.

7. The electrical connector according to claim 6, characterized in that: After the first and second terminals are fixed to the insulating body, the first insulating block is inserted into the accommodation space from the rear to the front, and the first grooves correspond to the connecting portions one by one. The second insulating block is aligned with the pins of the first and second terminals from the bottom upward and inserted into the accommodation space.

8. The electrical connector according to claim 1, characterized in that: Horizontal first mounting portions are provided on both sides of the first insulating block, and a first mounting groove is provided in the accommodation space for interference fixing with the first mounting portions.

9. The electrical connector according to claim 8, characterized in that: Vertical second mounting portions are provided on both sides of the second insulating block, and a second mounting groove is provided in the accommodation space for interference fixing with the second mounting portions.

10. The electrical connector according to claim 1, characterized in that: The dielectric constants of the first and second insulating blocks are different from the dielectric constant of the insulating body.

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