Electrical connectors

Abstract

An electrical connector includes: an insulating body having a plurality of through signal channels and grounding channels on two long sidewalls, the signal channels being grouped in pairs, with one group of signal channels located between two grounding channels; a terminal mounting assembly; two terminal assemblies disposed on the terminal mounting assembly and including a plurality of signal terminals and grounding terminals; and two grounding shells embedded in the top of the insulating body, each having a grounding portion, a plurality of separators, and an opening, the grounding portion being embedded in the insulating body, the separators connecting the grounding portion, the openings being located between the grounding portion and the separators and aligned with one group of signal channels, the grounding channels being closed by the separators, and each grounding terminal having a grounding end portion extending into the grounding channel and contacting the separators.

Description

Technical Field

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector that can operate stably in a high-frequency environment. Background Technology

[0002] In recent years, the booming development of the electronics industry and consumers' preference for lighter, thinner, smaller, and more portable electronic products have driven small electronic products to become the mainstream in the market. For these reasons, electronic devices are becoming increasingly smaller, leading to the miniaturization of circuit boards and corresponding connectors. However, with the miniaturization of circuits, the distance between terminals inside electronic components such as connectors is shortened, resulting in more frequent coupling between the electric fields of the terminals. This contributes to the generation of more noise signals and exacerbates crosstalk problems when transmitting high-frequency signals, causing connectors to be unable to operate stably in high-frequency environments.

[0003] Therefore, it is necessary to provide an electrical connector with better resistance to high-frequency noise and crosstalk. Summary of the Invention

[0004] The purpose of this utility model is to provide an electrical connector, comprising: an insulating body, wherein a plurality of signal channels and grounding channels are provided at the top ends of two long sidewalls of the insulating body, the signal channels being adjacent to each other in a group, and two grounding channels being located on both sides of a group of signal channels; a terminal fixing assembly fixed in the insulating body; two terminal groups, the two terminal groups being disposed in the terminal fixing assembly and symmetrically arranged, each of the two terminal groups comprising a plurality of signal terminals and a plurality of grounding terminals arranged side by side, the signal terminals being adjacent to each other in a group, and two grounding terminals being located on both sides of a group of signal terminals; and two grounding shells. Two grounding shells are symmetrically arranged and embedded at the top of the insulating body. Each grounding shell has a grounding portion, a plurality of partition strips, and a plurality of openings. The grounding portion is embedded in the insulating body. The plurality of partition strips connect the grounding portion. The plurality of openings are formed between the grounding portion and the plurality of partition strips. The position and width of the openings are aligned with a set of signal channels. The grounding channels are closed by the partition strips. The top of the grounding terminal has a grounding end portion, and the top of the signal terminal has a signal end portion. The signal end portion extends into the signal channel and is located in the opening. The grounding end portion extends into the grounding channel and contacts the partition strip.

[0005] In some embodiments, the grounding shell is provided with partitions located on the front and rear sides of each of the openings, and the partitions are bent perpendicularly toward the adjacent surfaces of the two grounding shells.

[0006] In some embodiments, the spacer is embedded in the channel wall of the grounding channel.

[0007] In some embodiments, the signal terminal and the ground terminal each include a fixing portion fixed and covered in the terminal mounting assembly, a mating portion extending upward from the fixing portion, and a welding portion extending downward from the fixing portion, wherein the grounding end portion extends to the top of the mating portion of the ground terminal, and the signal end portion extends to the top of the mating portion of the signal terminal.

[0008] In some embodiments, the grounding shell is formed by stamping a single metal sheet.

[0009] In some embodiments, the insulating body has two opposing short sidewalls, each of which has two grooves recessed inward from the surface of the short sidewall. The grooves are located on the upper side of the short sidewall. The front and rear edges of the grounding portion have two inwardly extending fixing pieces, which are covered inside the short sidewall. Each fixing piece has a protrusion that engages with the groove. An outer shell surrounds the outside of the insulating body, and the protrusion contacts the outer shell.

[0010] Another objective of this utility model is to provide an electrical connector, comprising: an insulating body having at least one long sidewall, the top of which has a plurality of signal channels and grounding channels penetrating the long sidewall, the signal channels being adjacent to each other in a group, and two grounding channels being located on opposite sides of a group of signal channels; an insulating base fixed within the insulating body; at least one terminal group, the terminal group being disposed within the insulating base, the terminal group comprising a plurality of signal terminals and a plurality of grounding terminals arranged side by side, the signal terminals being adjacent to each other in a group, and two grounding terminals being located on opposite sides of a group of signal terminals; and at least A grounding shell is embedded at the top end of an insulating body. The grounding shell has a grounding portion, a plurality of partition strips, and a plurality of openings. The grounding portion is embedded in the insulating body. The plurality of partition strips connect the grounding portion. The plurality of openings are formed between the grounding portion and the plurality of partition strips. The positions of the openings are aligned with a set of signal channels. The partition strips are disposed in the grounding channels. The top end of the grounding terminal has a grounding end portion, and the top end of the signal terminal has a signal end portion. The signal end portion extends into the signal channel and is located in the opening. The grounding end portion extends into the grounding channel and contacts the partition strips.

[0011] As described above, the electrical connector of this utility model has a grounding shell embedded in the insulating body. The grounding shell has a grounding portion that blocks the grounding channel, so that the grounding end of the grounding terminal abuts against the separator strip of the grounding portion when the electrical connector of this utility model is connected, which can suppress the resonance point of crosstalk. Furthermore, the grounding shell has a partition extending inward from the grounding portion and located on both sides of the front and rear of a group of signal channels, which can reduce the coupling between electric fields, thereby effectively improving the crosstalk problem of high-frequency signals and enhancing the working capability of the electrical connector of this utility model in high-frequency environments. Attached Figure Description

[0012] To make the above and other objects, features, advantages and embodiments of this utility model more apparent and understandable, the contents of this case can be better understood when read in conjunction with the accompanying drawings.

[0013] Figure 1 This is a perspective view of the electrical connector of this utility model.

[0014] Figure 2 This is an exploded view of the electrical connector of this utility model.

[0015] Figure 3 This is an exploded view of the terminal assembly of this utility model.

[0016] Figure 4 This is a partial perspective view of the terminal assembly of this utility model.

[0017] Figure 5 This is a perspective view of the insulating body of this utility model.

[0018] Figure 6 This utility model electrical connector is along Figure 5 A magnified view of part X.

[0019] Figure 7 This is a left view of the electrical connector of this utility model, omitting the outer shell.

[0020] Figure 8 This utility model electrical connector is along Figure 7 A cross-sectional view of line AA.

[0021] Figure 9 This is a perspective view of the grounding shell of this utility model.

[0022] Figure 10 This utility model electrical connector is along Figure 7 A cross-sectional view of the BB line.

[0023] Figure 11 This utility model electrical connector is along Figure 8 A magnified view of the Y-section.

[0024] Figure 12 This utility model electrical connector is along Figure 7 A cross-sectional view of the CC line.

[0025] Figure 13 This is a schematic diagram of the electrical connector of this utility model being connected to a mating connector. Detailed Implementation

[0026] To illustrate in detail the technical content, structural features, objectives, and effects of the electrical connector of this utility model, the following embodiments are provided in conjunction with the accompanying drawings.

[0027] Please see Figure 1 and Figure 2 An electrical connector 100 of this utility model includes a housing 10, an accommodating space 15 disposed inside the housing 10, an insulating body 20 disposed in the accommodating space 15, two grounding shells 30 covered by the insulating body 20, and a terminal assembly 110 installed inside the insulating body 20.

[0028] Please see Figures 1 to 3 The terminal assembly 110 includes a terminal holder assembly 40 and a terminal group 50 fixed in the terminal holder assembly 40. The terminal holder assembly 40 includes a first insulating base 41, a second insulating base 42 assembled with the first insulating base 41, and a conductive connector 60 clamped and covered by the first insulating base 41 and the second insulating base 42. The terminal group 50 includes a first terminal group 51 passing through the first insulating base 41 and a second terminal group 52 passing through the second insulating base 42.

[0029] Please see Figure 3 and Figure 4 Both the first terminal group 51 and the second terminal group 52 include a plurality of signal terminals 501 and a plurality of ground terminals 502 arranged side by side. The signal terminals 501 and the ground terminals 502 are spaced apart from each other, and two signal terminals 501 form a differential terminal pair. The two ground terminals 502 are respectively located on both sides of a differential terminal pair.

[0030] Continue reading Figure 3 and Figure 4The signal terminal 501 and the ground terminal 502 are both elongated strips and each includes a fixing part 5011 and 5021 fixed and covered in the terminal fixing base assembly 40, a mating part 5012 and 5022 extending upward from the fixing part 5011 and 5021 respectively, and a welding part 5013 and 5023 extending downward from the fixing part 5011 and 5021 respectively. The mating part 5012 and 5022 extend upward from the top of the fixing part 5011 and 5021 and bend slightly inward before bending outward.

[0031] The mating portion 5022 of the grounding terminal 502 extends outward and upward at its tip, then bends inward and extends upward again to form a grounding end portion 5024. The mating portion 5012 of the signal terminal 5014 extends outward and upward at its tip to form a signal end portion 5014. The grounding end portion 5024 has an extension section 5025 and a bending section 5026. The mating portion 5022 of the grounding terminal 502 extends outward and upward at its tip to form the extension section 5025, and the tip of the extension section 5025 bends inward and then extends upward again to form the bending section 5026. In this embodiment, the slope of the signal end portion 5014 is greater than the slope of the extension section 5025.

[0032] Please see Figures 5 to 8 The insulating body 20 has two opposing long sidewalls 201 and two opposing short sidewalls 202, and at the top of the two long sidewalls 201 of the insulating body 20, there are a plurality of signal channels 21 and grounding channels 22 that penetrate from the left and right, and four grooves 23 that are recessed inward from the surface of the short sidewalls 202. The arrangement of the signal channels 21 and the grounding channels 22 corresponds to the arrangement of the signal terminals 501 and the grounding terminals 502. The signal channels 21 are also arranged in pairs, with two grounding channels 22 located on either side of each pair of signal channels 21. The signal channels 21 and the grounding channels 22 are arranged in a row on the upper side of the long sidewall 201 to accommodate the signal end portion 5014 of the signal terminal 201 and the grounding end portion 5024 of the grounding terminal 202, respectively. The signal end portion 5014 can move into the signal channel 21, and the grounding end portion 5024 can move into the grounding channel 22, allowing for movement between the grounding end portion 5024 and the signal end portion 5014 when they are mated with the electrical connector 100. The grooves 23 are arranged in pairs and are respectively located on the upper side inside the short sidewall 202.

[0033] Please see Figures 7 to 11The grounding shells 30 are arranged symmetrically on the left and right sides and are respectively embedded and fixed to the top of the insulating body 10. In this preferred embodiment, the grounding shells 30 are formed by stamping a single metal sheet. The grounding shells 30 are located on the upper side of the long sidewall 201 and include a grounding part 31, a plurality of openings 32 arranged side by side at fixed intervals on the grounding part 31, and spacers 33 arranged on the front and rear sides of each opening 32. The spacers 33 are formed by bending the grounding part 31 after stamping and are all bent at 90 degrees toward the adjacent surfaces of the two grounding shells 30. The grounding portion 31 extends forward and backward along the long sidewall 201. The grounding portion 31 is provided with two inwardly extending fixing pieces 311. The fixing pieces 311 are covered inside the short sidewall 202 and are located at the front end and rear end of the grounding portion 31, respectively. Each fixing piece 311 is provided with a protrusion 3111. The protrusion 3111 engages with the groove 23 to fix the grounding shell 30 inside the insulating body 20. The protrusion 3111 contacts the inner surface of the shell 10.

[0034] The grounding portion 31 is generally elongated, with its front and rear ends bent inward to form the fixing plate 31. The fixing plate 31 has protrusions 3111 extending in a forward-backward direction. The upper edge of the grounding portion 31 extends upward to form a plurality of partition strips 34, with a certain distance maintained between each partition strip 34. The top ends of the plurality of partition strips 34 are connected to a connecting strip 35. Therefore, the opening 32 is defined between the grounding portion 31, the partition strips 34, and the connecting strip 35. The front and rear sides of the partition strips 34 are bent inward and extended to form the spacer 33.

[0035] Please see again Figures 7 to 10 and Figure 12The signal channel 21 and the grounding channel 22 penetrate the insulating body 20 from left to right. The position and width of the opening 32 are aligned with a set of signal channels 21, and the interval between two openings 32 is set to be equivalent to the width of the grounding channel 22. This allows the grounding channel 22 to be closed by the partition strip 34 between the openings 32, and the partition 33 is embedded in the channel wall of the grounding channel 22. The grounding portion 31 is embedded below the signal channel 21 and the grounding channel 22, and the connecting strip 35 is embedded above the signal channel 21 and the grounding channel 22. The signal terminal 501 extends into the signal channel 21 and the opening 32, exposing the signal end portion 5014 in the signal channel 21 and the opening 32. The grounding end portion 5024 of the grounding terminal 502 extends into the grounding channel 22, and the bent section 5026 of the grounding end portion 5024 contacts the partition strip 34 within the grounding channel 22.

[0036] Please see again Figure 9 , Figure 12 and Figure 13 When a mating connector 200 is inserted into the electrical connector 100 of this invention, the mating portions 5022 of each grounding terminal 502 are pushed outward by the mating connector 200, and the bent section 5026 of the grounding end portion 5024 abuts against the separator strip 34, thereby achieving mutual conductivity through the grounding shell 30 and having the same potential. Furthermore, the spacer 33 is disposed on the front and rear sides of a set of signal channels 21 to isolate the electric field between the differential terminal pairs, reducing coupling between electric fields and suppressing the generation of noise signals, thus improving crosstalk problems.

[0037] In summary, the electrical connector 100 of this invention adds a grounding shell 30 embedded at the top of the insulating body 10. The grounding shell 30 has a partition strip 34 that closes the grounding channel 22, so that the grounding end portion 5024 of the grounding terminal 502 abuts against the partition strip 34 during the mating of the electrical connector 100, thereby eliminating the potential difference between the grounding terminals 502 and pushing the resonant point of crosstalk to a higher frequency. The grounding shell 30 also has partitions 33 bent from the partition strip 34 and extending into the channel wall of the grounding channel 22. The partitions 33 are located on the front and rear sides of a set of signal channels 21 to separate the electric field between the differential terminal pairs, weaken the coupling phenomenon between the electric fields, and thus reduce noise signals. Therefore, the electrical connector 100 of this invention can effectively suppress the resonant point of crosstalk, improve the crosstalk problem of high-frequency signals, and enhance the transmission capability of high-frequency signals.

[0038] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An electrical connector, characterized in that: The system comprises: an insulating body having a plurality of signal channels and grounding channels penetrating the two long sidewalls at their top ends, the signal channels being adjacent to each other in a group, and two grounding channels located on either side of each group of signal channels; a terminal mounting assembly fixed within the insulating body; two terminal groups, each containing a plurality of signal terminals and a plurality of grounding terminals arranged side-by-side, the signal terminals being adjacent to each other in a group, and two grounding terminals located on either side of each group of signal terminals; and two grounding shells symmetrically arranged. The grounding shell is provided with a grounding portion, a plurality of partition strips, and a plurality of openings, and is embedded in the top of the insulating body. The grounding portion is embedded in the insulating body, the plurality of partition strips are connected to the grounding portion, and the plurality of openings are formed between the grounding portion and the plurality of partition strips. The position and width of the openings are aligned with a set of signal channels, and the grounding channels are closed by the partition strips. The top of the grounding terminal is provided with a grounding end portion, and the top of the signal terminal is provided with a signal end portion. The signal end portion extends into the signal channel and is located in the opening, and the grounding end portion extends into the grounding channel and contacts the partition strip.

2. The electrical connector as described in claim 1, characterized in that: The grounding shell is provided with partitions located on the front and rear sides of each of the openings, and the partitions are bent perpendicularly toward the adjacent surfaces of the two grounding shells.

3. The electrical connector as described in claim 2, characterized in that: The partition is embedded in the channel wall of the grounding channel.

4. The electrical connector as described in claim 1, characterized in that: The signal terminal and the ground terminal each include a fixing part fixed and covered in the terminal fixing base assembly, a mating part extending upward from the fixing part, and a welding part extending downward from the fixing part. The grounding end part extends to the top of the mating part of the ground terminal, and the signal end part extends to the top of the mating part of the signal terminal.

5. The electrical connector as claimed in claim 1, characterized in that: The grounding shell is made of a single metal sheet formed by stamping.

6. The electrical connector as claimed in claim 1, characterized in that: The insulating body has two opposing short sidewalls, each of which has two grooves recessed inward from the surface of the short sidewall. The grooves are located on the upper side of the short sidewall. The front and rear edges of the grounding part have two inwardly extending fixing pieces, which are covered inside the short sidewall. Each fixing piece has a protrusion that engages with the groove. The insulating body is surrounded by a shell, and the protrusion contacts the shell.

7. An electrical connector, characterized in that: The device comprises: an insulating body having at least one long sidewall, the top of which has a plurality of signal channels and grounding channels penetrating the sidewall, the signal channels being adjacent to each other in a group, and two grounding channels being located on opposite sides of each group of signal channels; an insulating base fixed within the insulating body; at least one terminal group passing through the insulating base, the terminal group comprising a plurality of signal terminals and a plurality of grounding terminals arranged side by side, the signal terminals being adjacent to each other in a group, and two grounding terminals being located on opposite sides of each group of signal terminals; and at least one grounding shell, the grounding shell being embedded in... At the top of the insulating body, the grounding shell is provided with a grounding portion, a plurality of partition strips and a plurality of openings. The grounding portion is embedded in the insulating body. The plurality of partition strips connect the grounding portion. The plurality of openings are formed between the grounding portion and the plurality of partition strips. The positions of the openings are aligned with a set of signal channels. The partition strips are disposed in the grounding channels. The top of the grounding terminal is provided with a grounding end portion. The top of the signal terminal is provided with a signal end portion. The signal end portion extends into the signal channel and is located in the opening. The grounding end portion extends into the grounding channel and contacts the partition strips.

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