Board-to-board connector

Abstract

A board-to-board connector includes an insulating body, a plurality of conductive terminals, and ground isolation sheets. The ground isolation sheets include a first ground isolation sheet and a second ground isolation sheet. The first ground isolation sheet includes a first base, a first connecting arm, and a first ground spring arm. The first ground spring arm includes a first abutting portion. The second ground isolation sheet includes a second base, a second connecting arm, and a second ground spring arm. The second ground spring arm includes a second abutting portion. The first connecting arm is in contact with the second connecting arm. Compared with the prior art, the split first and second ground isolation sheets facilitate assembly.

Description

Technical Field

[0001] This invention relates to a board-to-board connector, belonging to the field of connector technology. Background Technology

[0002] Board-to-board connectors in related technologies typically include an insulating body and a plurality of conductive terminals fixed within the insulating body. Each conductive terminal includes a first contact spring arm and a second contact spring arm protruding from the insulating body. The first contact spring arm is configured to abut against a first circuit board to achieve an electrical connection. The second contact spring arm is configured to abut against a second circuit board to achieve an electrical connection.

[0003] With the increasing demands on signal transmission in board-to-board connectors, reducing crosstalk between signals has become a technical challenge for those skilled in the field.

[0004] To address this, related technologies have proposed adding grounding isolation plates between adjacent conductive terminals. However, considering issues such as terminal density and the structural strength of the insulating body, optimizing the grounding isolation plate is a technical problem that those skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this invention is to provide a board-to-board connector with an optimized structure grounding isolation plate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a board-to-board connector, comprising:

[0007] An insulating body, the insulating body including a first mounting surface and a second mounting surface opposite to the first mounting surface;

[0008] A plurality of conductive terminals, wherein the plurality of conductive terminals are arranged at least in a first row and a second row, the first row and the second row being spaced apart along a first direction; each conductive terminal includes a first contact spring arm extending out of the first mounting surface and a second contact spring arm extending out of the second mounting surface; and

[0009] A grounding isolation plate is located between the conductive terminals of the first row and the conductive terminals of the second row, and the grounding isolation plate includes a first grounding isolation plate and a second grounding isolation plate;

[0010] The first grounding isolation plate includes a first base installed in the insulating body, a first connecting arm extending from the first base, and a first grounding spring arm extending from the first base. The first grounding spring arm includes a first abutting portion protruding from the first mounting surface.

[0011] The second grounding isolation plate includes a second base mounted in the insulating body, a second connecting arm extending from the second base, and a second grounding spring arm extending from the second base. The second grounding spring arm includes a second abutting portion protruding from the second mounting surface.

[0012] The first connecting arm contacts the second connecting arm to connect the first grounding isolation plate and the second grounding isolation plate in series.

[0013] As a further improvement of the present invention, the first contact spring arm includes a first contact portion configured to abut against the first circuit board, and the second contact spring arm includes a second contact portion configured to abut against the second circuit board; the first abutting portion is configured to abut against the first circuit board; and the second abutting portion is configured to abut against the second circuit board.

[0014] As a further improved technical solution of the present invention, the first connecting arm is provided with a first deflection portion located at the free end of the first connecting arm, and the second connecting arm is provided with a second deflection portion located at the free end of the second connecting arm. The first deflection portion deflects outward to the side away from the second connecting arm, and the second deflection portion deflects outward to the side away from the first connecting arm. The first deflection portion and the second deflection portion are in contact with each other along the first direction in a manner that at least partially overlaps.

[0015] As a further improved technical solution of the present invention, both the first row and the second row extend along the second direction, and the first direction is perpendicular to the second direction.

[0016] The first connecting arm of the first grounding isolation plate is a plurality of them and is arranged at intervals along the second direction;

[0017] The second connecting arm of the second grounding isolation plate is a plurality of them and is arranged at intervals along the second direction;

[0018] The first connecting arm and the second connecting arm are in one-to-one correspondence and contact.

[0019] As a further improved technical solution of the present invention, the insulating body includes a first mounting groove penetrating the first mounting surface, a second mounting groove penetrating the second mounting surface, a connecting groove connecting the first mounting groove and the second mounting groove, and a reinforcing portion located between the first mounting groove and the second mounting groove;

[0020] The first base of the first grounding isolating plate is installed in the first mounting groove, the second base of the second grounding isolating plate is installed in the second mounting groove, and the first connecting arm of the first grounding isolating plate and the second connecting arm of the second grounding isolating plate are at least partially inserted into the connecting groove.

[0021] As a further improvement of the present invention, the first base is provided with a first protrusion that abuts against the insulating body to fix the first grounding isolation piece to the insulating body; and / or

[0022] The second base is provided with a second protrusion that abuts against the insulating body to fix the second grounding isolation piece to the insulating body.

[0023] As a further improvement of the present invention, the first connecting arm is provided with a first barb that abuts against the insulating body to fix the first grounding isolation piece to the insulating body; and / or

[0024] The second connecting arm is provided with a second barb that abuts against the insulating body to fix the second grounding isolation piece to the insulating body.

[0025] As a further improved technical solution of the present invention, both the first row and the second row extend along the second direction, and the first direction is perpendicular to the second direction.

[0026] The first grounding spring arm of the first grounding isolation plate is a plurality of them and is arranged at intervals along the second direction;

[0027] The second grounding spring arm of the second grounding isolation plate is a plurality of them and is arranged at intervals along the second direction.

[0028] As a further improved technical solution of the present invention, the first grounding spring arm is cantilevered, and the first grounding spring arm is always connected to the first base through the first connecting part;

[0029] When the first contact portion of the first grounding spring arm comes into contact with the first circuit board, the first grounding spring arm contacts the first base portion through the first circuit portion.

[0030] As a further improved technical solution of the present invention, the first grounding spring arm includes a first arm portion and a first free end portion, the first abutting portion is connected between the first arm portion and the first free end portion, and the first circuit portion is located at the first free end portion;

[0031] When the first abutting portion of the first grounding spring arm abuts against the first circuit board, the side of the first free end portion contacts the first base portion.

[0032] As a further improved technical solution of the present invention, the first base is provided with a first protrusion protruding along the thickness direction of the first base, and the first protrusion is provided with a first groove corresponding to the first free end portion and a first contact surface exposed in the first groove.

[0033] When the first abutting part of the first grounding spring arm abuts against the first circuit board, the side of the first free end portion contacts the first contact surface.

[0034] As a further improvement of the present invention, the first contact surface includes a first inclined surface that extends inclinedly into the first groove.

[0035] When the first abutting part of the first grounding spring arm abuts against the first circuit board, the side of the first free end portion contacts the first inclined surface.

[0036] As a further improved technical solution of the present invention, the second grounding spring arm is cantilevered, and the second grounding spring arm is always connected to the second base through the second connecting part;

[0037] When the second abutting part of the second grounding spring arm abuts against the second circuit board, the second grounding spring arm contacts the second base part through the second circuit part.

[0038] As a further improved technical solution of the present invention, the second grounding spring arm includes a second arm portion and a second free end portion, the second abutting portion is connected between the second arm portion and the second free end portion, and the second circuit portion is located at the second free end portion;

[0039] When the second abutting part of the second grounding spring arm abuts into place with the second circuit board, the side of the second free end portion contacts the second base portion.

[0040] As a further improved technical solution of the present invention, the second base is provided with a second protrusion protruding along the thickness direction of the second base, and the second protrusion is provided with a second groove corresponding to the second free end portion and a second contact surface exposed in the second groove;

[0041] When the second abutting part of the second grounding spring arm abuts into place with the second circuit board, the side of the second free end portion contacts the second contact surface.

[0042] As a further improvement of the present invention, the second contact surface includes a second inclined surface that extends inclinedly into the second groove;

[0043] When the second abutting part of the second grounding spring arm abuts into place with the second circuit board, the side of the second free end portion contacts the second inclined surface.

[0044] As a further improved technical solution of the present invention, the first grounding spring arm includes a first arm portion and a first free end portion, the first abutting portion is connected between the first arm portion and the first free end portion; the first circuit portion is located in the first arm portion;

[0045] The first base portion is provided with a first abutting arm configured to cooperate with the first arm portion, and the first abutting arm is cantilevered;

[0046] When the first abutting part of the first grounding spring arm abuts the first circuit board, the first arm part contacts the first abutting arm.

[0047] As a further improved technical solution of the present invention, the second grounding spring arm includes a second arm portion and a second free end portion, the second abutting portion is connected between the second arm portion and the second free end portion; the second circuit portion is located in the second arm portion;

[0048] The second base is provided with a second abutting arm configured to cooperate with the second arm portion, and the second abutting arm is cantilevered;

[0049] When the second abutting part of the second grounding spring arm abuts into place with the second circuit board, the second arm part contacts the second abutting arm.

[0050] As a further improvement of the present invention, the plurality of conductive terminals are arranged along the first direction and along a second direction perpendicular to the first direction;

[0051] There are multiple grounding isolation plates, and each grounding isolation plate is located between two adjacent rows of the plurality of conductive terminals along the first direction.

[0052] As a further improved technical solution of the present invention, both the first grounding isolation plate and the second grounding isolation plate are metal plates, and the components can be shared.

[0053] Compared to existing technologies, the grounding isolation plate of the present invention includes a first grounding isolation plate and a second grounding isolation plate. The first grounding isolation plate includes a first connecting arm and a first grounding spring arm, the first grounding spring arm being configured to abut against the first circuit board. The second grounding isolation plate includes a second connecting arm and a second grounding spring arm, the second grounding spring arm being configured to abut against the second circuit board. The first connecting arm and the second connecting arm are in contact to connect the first grounding isolation plate and the second grounding isolation plate in series. With this configuration, the grounding isolation plate of the present invention improves the grounding effect when in contact with the first and second circuit boards by providing the first and second grounding spring arms. Furthermore, the separate design of the first and second grounding isolation plates facilitates assembly. Attached Figure Description

[0054] Figure 1 This is a three-dimensional schematic diagram of the board-to-board connector of the present invention in the first embodiment.

[0055] Figure 2 yes Figure 1 A magnified view of part B circled in the middle.

[0056] Figure 3 yes Figure 1 A three-dimensional diagram from another angle.

[0057] Figure 4 yes Figure 3 A magnified view of part C circled in the middle.

[0058] Figure 5 yes Figure 1 Top view.

[0059] Figure 6 It is along Figure 5 A cross-sectional schematic diagram of the DD line.

[0060] Figure 7 yes Figure 6 The exploded view shows that the first grounding isolation plate and the second grounding isolation plate are separated.

[0061] Figure 8 yes Figure 7 An exploded view of another embodiment.

[0062] Figure 9 It is along Figure 5 A cross-sectional schematic diagram of the EE line.

[0063] Figure 10 It is along Figure 5 A cross-sectional view of the FF line.

[0064] Figure 11yes Figure 10 A magnified view of the circled area G.

[0065] Figure 12 yes Figure 1 Partial exploded 3D diagram.

[0066] Figure 13 yes Figure 12 An exploded perspective view of the first grounding isolation plate and the second grounding isolation plate.

[0067] Figure 14 yes Figure 13 Another perspective of the exploded 3D view.

[0068] Figure 15 This is a three-dimensional schematic diagram of the board-to-board connector in the first embodiment of the present invention when it is coupled with the first circuit board and the second circuit board.

[0069] Figure 16 yes Figure 15 A magnified view of the circled area H.

[0070] Figure 17 yes Figure 15 A three-dimensional diagram from another angle.

[0071] Figure 18 yes Figure 17 A magnified view of part I circled in the middle.

[0072] Figure 19 It is along Figure 15 A cross-sectional schematic diagram of the JJ line, wherein the first circuit board and the second circuit board are schematically shown.

[0073] Figure 20 yes Figure 19 A magnified view of the circled area K.

[0074] Figure 21 This is a three-dimensional schematic diagram of the board-to-board connector of the present invention in a second embodiment.

[0075] Figure 22 yes Figure 21 A three-dimensional diagram from another angle.

[0076] Figure 23 yes Figure 21 Partial exploded 3D diagram.

[0077] Figure 24 yes Figure 23 An exploded three-dimensional view of the first and second grounding isolation plates.

[0078] Figure 25 yes Figure 24 Another perspective of the exploded 3D view.

[0079] Figure 26 It is along Figure 21 A cross-sectional view of the MM line, wherein the board-to-board connector does not abut against the first circuit board and the second circuit board.

[0080] Figure 27 It is along Figure 21 A cross-sectional view of the MM line, wherein the board-to-board connector abuts against the first circuit board and the second circuit board.

[0081] Figure 28 yes Figure 26 A magnified view of the circled area N.

[0082] Figure 29 yes Figure 27 A magnified view of the circled area O.

[0083] Figure 30 This is a three-dimensional schematic diagram of the board-to-board connector of the present invention in the third embodiment.

[0084] Figure 31 yes Figure 30 A three-dimensional diagram from another angle.

[0085] Figure 32 yes Figure 30 A magnified view of the circled area P.

[0086] Figure 33 yes Figure 31 A magnified view of the circled area Q.

[0087] Figure 34 yes Figure 30 An exploded three-dimensional view of the first and second grounding isolation plates.

[0088] Figure 35 yes Figure 34 Another perspective of the exploded 3D view. Detailed Implementation

[0089] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0090] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0091] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0092] Please refer to Figures 1 to 29 As shown, the present invention discloses a board-to-board connector 100, which includes an insulating body 1, a plurality of conductive terminals 2 and a grounding isolation plate 3.

[0093] Please combine Figure 1 , Figure 3 , Figure 7 as well as Figure 9 As shown, the insulating body 1 includes a first mounting surface 11 (e.g., an upper surface) and a second mounting surface 12 (e.g., a lower surface) opposite to the first mounting surface 11. In the illustrated embodiment of the present invention, the insulating body 1 further includes a plurality of terminal mounting grooves 13 extending vertically through the first mounting surface 11 and the second mounting surface 12. Furthermore, the insulating body 1 includes a plurality of first mounting grooves 14 extending upward through the first mounting surface 11, a plurality of second mounting grooves 15 extending downward through the second mounting surface 12, a connecting groove 16 connecting a corresponding first mounting groove 14 and a corresponding second mounting groove 15, and a reinforcing portion 17 located between the first mounting groove 14 and the second mounting groove 15. In the illustrated embodiment of the present invention, there are multiple reinforcing portions 17, each reinforcing portion 17 located between two adjacent connecting grooves 16. Those skilled in the art will understand that the reinforcing portion 17 is an internal wall of the insulating body 1.

[0094] Please combine Figure 5 as well as Figure 9As shown, the plurality of conductive terminals 2 are arranged in at least a first row L1 and a second row L2. The first row L1 and the second row L2 are arranged at intervals along a first direction A1-A1 (e.g., a left-right direction). Those skilled in the art will understand that the first row L1 and the second row L2 can be two rows that are close to each other or two rows that are far apart from each other along the first direction A1-A1. In the embodiment illustrated in the present invention, the first row L1 and the second row L2 are two rows that are close to each other along the first direction A1-A1. Each conductive terminal 2 includes a fixing part 20 fixed in the terminal mounting groove 13, a first contact spring arm 21 extending out of the first mounting surface 11, and a second contact spring arm 22 extending out of the second mounting surface 12. Please refer to... Figure 9 as well as Figure 19 As shown, the first contact spring arm 21 includes a first contact portion 211 configured to abut against the first circuit board 201, and the second contact spring arm 22 includes a second contact portion 221 configured to abut against the second circuit board 202.

[0095] In the embodiment illustrated in the present invention, the plurality of conductive terminals 2 are arranged in a matrix along the first direction A1-A1 and along a second direction A2-A2 (e.g., the front-to-back direction) perpendicular to the first direction A1-A1 to improve signal transmission capability. Both the first row L1 and the second row L2 extend along the second direction A2-A2.

[0096] Please combine Figures 5 to 14 As shown in the illustrated embodiment of the present invention, there are multiple grounding isolation plates 3, and each grounding isolation plate 3 is located between two adjacent rows of the plurality of conductive terminals 2 along the first direction A1-A1 to improve shielding. The following description focuses on the grounding isolation plate 3 located between the conductive terminals 2 of the first row L1 and the conductive terminals 2 of the second row L2.

[0097] In the illustrated embodiment of the present invention, the grounding isolation plate 3 includes a split first grounding isolation plate 31 and a second grounding isolation plate 32. In the illustrated embodiment, both the first grounding isolation plate 31 and the second grounding isolation plate 32 are metal sheets. Preferably, the first grounding isolation plate 31 and the second grounding isolation plate 32 can share components, that is, the first grounding isolation plate 31 and the second grounding isolation plate 32 have the same structure, differing only in their installation angle. For example, the second grounding isolation plate 32 is formed by inverting the first grounding isolation plate 31 by 180°, and vice versa.

[0098] Please combine Figure 7As shown in the illustrated embodiment of the present invention, the first grounding isolation plate 31 includes a first base 311 mounted in the first mounting groove 14, a plurality of first connecting arms 312 extending from the first base 311, and a plurality of first grounding spring arms 313 extending from the first base 311. Each first grounding spring arm 313 includes a first abutting portion 3131 protruding from the first mounting surface 11 and configured to abut against the grounding path of the first circuit board 201. The plurality of first connecting arms 312 are arranged at intervals along the second direction A2-A2.

[0099] Similarly, the second grounding isolation plate 32 includes a second base 321 mounted in the second mounting groove 15, a plurality of second connecting arms 322 extending from the second base 321, and a plurality of second grounding spring arms 323 extending from the second base 321. Each second grounding spring arm 323 includes a second abutting portion 3231 protruding from the second mounting surface 12 and configured to abut against the grounding path of the second circuit board 202. The plurality of second connecting arms 322 are arranged at intervals along the second direction A2-A2.

[0100] After the first grounding isolation plate 31 and the second grounding isolation plate 32 are assembled in place, the first connecting arm 312 of the first grounding isolation plate 31 and the second connecting arm 322 of the second grounding isolation plate 32 are respectively inserted into the connecting groove 16 at least partially in opposite directions. The first connecting arm 312 and the second connecting arm 322 correspond one-to-one and abut against each other to connect the first grounding isolation plate 31 and the second grounding isolation plate 32 in series.

[0101] In the illustrated embodiment of the present invention, each first connecting arm 312 is provided with a first deflection portion 3121 located at the free end of the first connecting arm 312; the second connecting arm 322 is provided with a second deflection portion 3221 located at the free end of the second connecting arm 322; the first deflection portion 3121 deflects outward to a side away from the second connecting arm 322, and the second deflection portion 3221 deflects outward to a side away from the first connecting arm 312. Please refer to... Figure 10 as well as Figure 11As shown, the first deflecting portion 3121 and the second deflecting portion 3221 are in contact with each other (e.g., abutting each other) along the first direction A1-A1 with at least partial overlap. In the embodiment illustrated in the present invention, the first deflecting portion 3121 and the second deflecting portion 3221 partially overlap along a third direction A3-A3 (e.g., vertical direction). The third direction A3-A3 is perpendicular to the first direction A1-A1 and the second direction A2-A2. Compared with related technologies, the side of the first deflecting portion 3121 of the present invention contacts the side of the second deflecting portion 3221, which ensures contact reliability while reducing the abutting force between the two, thereby improving the convenience of installation. Of course, those skilled in the art will understand that the first connecting arm 312 and the second connecting arm 322 can also contact each other in other ways, which will not be described in detail in the present invention.

[0102] Please combine Figure 13 as well as Figure 14 As shown, in order to improve the holding force between the first grounding isolation plate 31 and the second grounding isolation plate 32 and the insulating body 1, the first base 311 is provided with a first protrusion 3111 that abuts against the insulating body 1 to fix the first grounding isolation plate 31 to the insulating body 1; the second base 321 is provided with a second protrusion 3211 that abuts against the insulating body 1 to fix the second grounding isolation plate 32 to the insulating body 1.

[0103] Of course, in other implementation methods, please refer to... Figure 8 As shown, the first connecting arm 312 has a first barb 3120 that abuts against the insulating body 1 to fix the first grounding isolation piece 31 to the insulating body 1; the second connecting arm 322 has a second barb 3220 that abuts against the insulating body 1 to fix the second grounding isolation piece 32 to the insulating body 1. The first barb 3120 and the second barb 3220 are inserted into the insulating body 1 to achieve fixation.

[0104] Please combine Figures 13 to 20As shown in the illustrated embodiment of the present invention, each first grounding spring arm 313 is cantilevered. The first grounding spring arm 313 is always connected to the first base 311 via a first connecting portion 3130. When the first abutting portion 3131 of the first grounding spring arm 313 abuts against the first circuit board 201, the first grounding spring arm 313 contacts the first base 311 via a first loop portion to generate a secondary grounding loop, thereby enhancing the high-frequency characteristics of the board-to-board connector 100. The first grounding spring arm 313 includes a first arm portion 3134 and a first free end portion 3135, with the first abutting portion 3131 connecting between the first arm portion 3134 and the first free end portion 3135.

[0105] In the first embodiment illustrated in the present invention, the first circuit portion is located at the first free end portion 3135. When the first abutting portion 3131 of the first grounding spring arm 313 abuts against the first circuit board 201, a first grounding circuit is formed through the first grounding spring arm 313, the first connecting portion 3130, and the first base portion 311; when the first abutting portion 3131 of the first grounding spring arm 313 is in place with the first circuit board 201, the side of the first free end portion 3135 contacts (e.g., overlaps) the first base portion 3111. At this time, a second grounding circuit is formed through the first free end portion 3135 of the first grounding spring arm 313 and the first base portion 311. Specifically, the first base portion 3111 is provided with a first protrusion 3112 protruding along the thickness direction of the first base portion 3111, and the first protrusion 3112 is provided with a first groove 3113 corresponding to the first free end portion 3135 and a first contact surface 3114 exposed in the first groove 3113. When the first abutting portion 3131 of the first grounding spring arm 313 abuts against the first circuit board 201, the side of the first free end portion 3135 contacts (e.g., overlaps) the first contact surface 3114.

[0106] Please combine Figure 2As shown in the illustrated embodiment of the present invention, the first contact surface 3114 includes a first vertical surface 3114a and a first inclined surface 3114b extending obliquely into the first groove 3113 relative to the first vertical surface 3114a. The first vertical surface 3114a is configured to guide and limit the side surface of the first free end portion 3135. When the first abutting portion 3131 of the first grounding spring arm 313 abuts into place with the first circuit board 201, the side surface of the first free end portion 3135 contacts (e.g., overlaps) the first inclined surface 3114b. Compared with related technologies, the present invention, by providing the first inclined surface 3114b, can improve the reliability of contact with the first free end portion 3135. In addition, by making the side surface of the first free end portion 3135 contact (e.g., overlap) the first inclined surface 3114b, it is advantageous to reduce the contact force between the two.

[0107] Similarly, in the embodiment illustrated in the present invention, each second grounding spring arm 323 is cantilevered, and the second grounding spring arm 323 is always connected to the second base 321 through the second connecting portion 3230. When the second abutting portion 3231 of the second grounding spring arm 323 abuts against the second circuit board 202, a first grounding loop is formed through the second grounding spring arm 323, the second connecting portion 3230, and the second base 321. When the second abutting portion 3231 of the second grounding spring arm 323 is fully engaged with the second circuit board 202, the second grounding spring arm 323 contacts the second base 321 through the second loop portion to generate a secondary grounding loop, thereby enhancing the high-frequency characteristics of the board-to-board connector 100. At this time, a second grounding loop is formed through the second free end portion 3235 of the second grounding spring arm 323 and the second base 321. The second grounding spring arm 323 includes a second arm portion 3234 and a second free end portion 3235, and the second abutting portion 3231 is connected between the second arm portion 3234 and the second free end portion 3235.

[0108] In the second embodiment illustrated in the present invention, the second circuit portion is located at the second free end portion 3235. When the second abutting portion 3231 of the second grounding spring arm 323 abuts against the second circuit board 202, the side of the second free end portion 3235 contacts (e.g., overlaps) the second base portion 321. Specifically, the second base portion 321 is provided with a second protrusion 3212 protruding along the thickness direction of the second base portion 321, and the second protrusion 3212 is provided with a second groove 3213 corresponding to the second free end portion 3235 and a second contact surface 3214 exposed in the second groove 3213. When the second abutting portion 3231 of the second grounding spring arm 323 abuts against the second circuit board 202, the side of the second free end portion 3235 contacts (e.g., overlaps) the second contact surface 3214.

[0109] Please combine Figure 4 As shown in the illustrated embodiment of the present invention, the second contact surface 3214 includes a second vertical surface 3214a and a second inclined surface 3214b extending obliquely into the second groove 3213 relative to the second vertical surface 3214a. The second vertical surface 3214a is configured to guide and limit the side surface of the second free end portion 3235. When the second abutting portion 3231 of the second grounding spring arm 323 abuts against the second circuit board 202, the side surface of the second free end portion 3235 contacts (e.g., overlaps) the second inclined surface 3214b. Compared to related technologies, the present invention, by providing the second inclined surface 3214b, can improve the reliability of contact with the second free end portion 3235. In addition, by making the side surface of the second free end portion 3235 contact (e.g., overlap) the second inclined surface 3214b, it is advantageous to reduce the contact force between the two.

[0110] Please combine Figures 21 to 29 As shown in the second embodiment illustrated in the present invention, the first circuit portion is located at the first arm portion 3134. The first base portion 311 is provided with a first recessed groove 3116 configured to receive the first free end portion 3135 and a first abutting arm 3117 that cooperates with the first arm portion 3134, the first abutting arm 3117 being cantilevered. When the first abutting portion 3131 of the first grounding spring arm 313 abuts into place with the first circuit board 201, the first arm portion 3134 contacts (e.g., overlaps) the first abutting arm 3117.

[0111] Similarly, the second circuit portion is located in the second arm portion 3234. The second base portion 321 is provided with a second groove 3216 configured to receive the second free end portion 3235 and a second abutment arm 3217 that mates with the second arm portion 3234, the second abutment arm 3217 being cantilevered. When the second abutment portion 3231 of the second grounding spring arm 323 abuts against the second circuit board 202, the second arm portion 3234 contacts (e.g., overlaps) the second abutment arm 3217.

[0112] Please combine Figures 30 to 35 As shown in the figure, the board-to-board connector 100 disclosed in the third embodiment of the present invention and Figures 1 to 20 Similar to the board-to-board connector 100 disclosed in the figure, the main difference is that the first protrusion 3112 of the board-to-board connector 100 disclosed in the third embodiment of the present invention tears the first base 311 outward along the thickness direction of the first base 311, and the second protrusion 3212 tears the second base 321 outward along the thickness direction of the second base 321.

[0113] Compared to existing technologies, the grounding isolation plate 3 of the present invention includes a first grounding isolation plate 31 and a second grounding isolation plate 32. The first grounding isolation plate 31 includes a first connecting arm 312 and a first grounding spring arm 313, the first grounding spring arm 313 being configured to abut against the first circuit board 201. The second grounding isolation plate 32 includes a second connecting arm 322 and a second grounding spring arm 323, the second grounding spring arm 323 being configured to abut against the second circuit board 202. The first connecting arm 312 and the second connecting arm 322 are in contact to connect the first grounding isolation plate 31 and the second grounding isolation plate 32 in series. With this configuration, the grounding isolation plate 3 of the present invention improves the grounding effect when in contact with the first circuit board 201 and the second circuit board 202 by providing the first grounding spring arm 313 and the second grounding spring arm 323. Furthermore, the separate design of the first grounding isolation plate 31 and the second grounding isolation plate 32 facilitates assembly.

[0114] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present invention should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A board-to-board connector (100), characterized in that, include: An insulating body (1) includes a first mounting surface (11) and a second mounting surface (12) opposite to the first mounting surface (11); A plurality of conductive terminals (2), the plurality of conductive terminals (2) being arranged at least in a first row (L1) and a second row (L2), the first row (L1) and the second row (L2) being spaced apart along a first direction (A1-A1); each conductive terminal (2) includes a first contact spring arm (21) extending out of the first mounting surface (11) and a second contact spring arm (22) extending out of the second mounting surface (12); and A grounding isolation plate (3) is located between the conductive terminals (2) of the first row (L1) and the conductive terminals (2) of the second row (L2). The grounding isolation plate (3) includes a first grounding isolation plate (31) and a second grounding isolation plate (32). The first grounding isolation plate (31) includes a first base (311) installed in the insulating body (1), a first connecting arm (312) extending from the first base (311) and a first grounding spring arm (313) extending from the first base (311). The first grounding spring arm (313) includes a first abutting portion (3131) protruding from the first mounting surface (11). The second grounding isolation plate (32) includes a second base (321) mounted in the insulating body (1), a second connecting arm (322) extending from the second base (321), and a second grounding spring arm (323) extending from the second base (321). The second grounding spring arm (323) includes a second abutting portion (3231) protruding from the second mounting surface (12). The first connecting arm (312) contacts the second connecting arm (322) to connect the first grounding isolation plate (31) and the second grounding isolation plate (32) in series.

2. The board-to-board connector (100) as described in claim 1, characterized in that: The first contact spring arm (21) includes a first contact portion (211) configured to abut against the first circuit board (201), and the second contact spring arm (22) includes a second contact portion (221) configured to abut against the second circuit board (202); the first abutting portion (3131) is configured to abut against the first circuit board (201); and the second abutting portion (3231) is configured to abut against the second circuit board (202).

3. The board-to-board connector (100) as described in claim 1, characterized in that: The first connecting arm (312) is provided with a first deflection portion (3121) located at the free end of the first connecting arm (312), and the second connecting arm (322) is provided with a second deflection portion (3221) located at the free end of the second connecting arm (322). The first deflection portion (3121) is deflected outward to a side away from the second connecting arm (322), and the second deflection portion (3221) is deflected outward to a side away from the first connecting arm (312). The first deflection portion (3121) and the second deflection portion (3221) are in contact with each other in a manner that at least partially overlaps along the first direction (A1-A1).

4. The board-to-board connector (100) as described in claim 3, characterized in that: Both the first row (L1) and the second row (L2) extend along the second direction (A2-A2), and the first direction (A1-A1) and the second direction (A2-A2) are perpendicular to each other; The first connecting arm (312) of the first grounding isolation plate (31) is a plurality of them and is arranged at intervals along the second direction (A2-A2); The second connecting arm (322) of the second grounding isolation plate (32) is a plurality of them and is arranged at intervals along the second direction (A2-A2); The first connecting arm (312) and the second connecting arm (322) are in one-to-one correspondence and in contact with each other.

5. The board-to-board connector (100) as described in claim 1, characterized in that: The insulating body (1) includes a first mounting groove (14) penetrating the first mounting surface (11), a second mounting groove (15) penetrating the second mounting surface (12), a connecting groove (16) connecting the first mounting groove (14) and the second mounting groove (15), and a reinforcing part (17) located between the first mounting groove (14) and the second mounting groove (15); The first base (311) of the first grounding isolation plate (31) is installed in the first mounting groove (14), the second base (321) of the second grounding isolation plate (32) is installed in the second mounting groove (15), and the first connecting arm (312) of the first grounding isolation plate (31) and the second connecting arm (322) of the second grounding isolation plate (32) are at least partially inserted into the connecting groove (16).

6. The board-to-board connector (100) as described in claim 5, characterized in that: The first base (311) is provided with a first protrusion (3111) that abuts against the insulating body (1) to fix the first grounding isolation piece (31) to the insulating body (1); and / or The second base (321) is provided with a second protrusion (3211) that abuts against the insulating body (1) to fix the second grounding isolation piece (32) to the insulating body (1).

7. The board-to-board connector (100) as described in claim 5, characterized in that: The first connecting arm (312) is provided with a first barb (3120) that abuts against the insulating body (1) to fix the first grounding isolation piece (31) to the insulating body (1); and / or The second connecting arm (322) is provided with a second barb (3220) that abuts against the insulating body (1) to fix the second grounding isolation piece (32) to the insulating body (1).

8. The board-to-board connector (100) as described in claim 1, characterized in that: Both the first row (L1) and the second row (L2) extend along the second direction (A2-A2), and the first direction (A1-A1) and the second direction (A2-A2) are perpendicular to each other; The first grounding spring arms (313) of the first grounding isolation plate (31) are a plurality of ones and are arranged at intervals along the second direction (A2-A2); The second grounding spring arms (323) of the second grounding isolation plate (32) are a plurality of ones and are arranged at intervals along the second direction (A2-A2).

9. The board-to-board connector (100) as described in claim 2, characterized in that: The first grounding spring arm (313) is cantilevered, and the first grounding spring arm (313) is always connected to the first base (311) through the first connecting part (3130); When the first contact portion (3131) of the first grounding spring arm (313) is in place with the first circuit board (201), the first grounding spring arm (313) contacts the first base portion (311) through the first circuit portion.

10. The board-to-board connector (100) as described in claim 9, characterized in that: The first grounding spring arm (313) includes a first arm portion (3134) and a first free end portion (3135), the first abutting portion (3131) is connected between the first arm portion (3134) and the first free end portion (3135), and the first circuit portion is located at the first free end portion (3135). When the first abutting portion (3131) of the first grounding spring arm (313) abuts against the first circuit board (201), the side of the first free end portion (3135) contacts the first base portion (311).

11. The board-to-board connector (100) as described in claim 10, characterized in that: The first base (311) is provided with a first protrusion (3112) protruding along the thickness direction of the first base (311), and the first protrusion (3112) is provided with a first groove (3113) corresponding to the first free end portion (3135) and a first contact surface (3114) exposed in the first groove (3113); When the first abutting portion (3131) of the first grounding spring arm (313) abuts against the first circuit board (201), the side of the first free end portion (3135) contacts the first contact surface (3114).

12. The board-to-board connector (100) as described in claim 11, characterized in that: The first contact surface (3114) includes a first inclined surface (3114b) that extends obliquely into the first groove (3113); When the first abutting portion (3131) of the first grounding spring arm (313) abuts against the first circuit board (201), the side of the first free end portion (3135) contacts the first inclined surface (3114b).

13. The board-to-board connector (100) as described in claim 2, characterized in that: The second grounding spring arm (323) is cantilevered, and the second grounding spring arm (323) is always connected to the second base (321) through the second connecting part (3230); When the second abutting part (3231) of the second grounding spring arm (323) abuts against the second circuit board (202), the second grounding spring arm (323) contacts the second base (321) through the second circuit part.

14. The board-to-board connector (100) as described in claim 13, characterized in that: The second grounding spring arm (323) includes a second arm portion (3234) and a second free end portion (3235), the second abutment portion (3231) is connected between the second arm portion (3234) and the second free end portion (3235), and the second circuit portion is located at the second free end portion (3235); When the second abutting portion (3231) of the second grounding spring arm (323) abuts against the second circuit board (202), the side of the second free end portion (3235) contacts the second base portion (321).

15. The board-to-board connector (100) as described in claim 14, characterized in that: The second base (321) is provided with a second protrusion (3212) protruding along the thickness direction of the second base (321), and the second protrusion (3212) is provided with a second groove (3213) corresponding to the second free end portion (3235) and a second contact surface (3214) exposed in the second groove (3213); When the second abutting portion (3231) of the second grounding spring arm (323) abuts against the second circuit board (202), the side of the second free end portion (3235) contacts the second contact surface (3214).

16. The board-to-board connector (100) as described in claim 15, characterized in that: The second contact surface (3214) includes a second inclined surface (3214b) that extends obliquely into the second groove (3213); When the second abutting portion (3231) of the second grounding spring arm (323) abuts against the second circuit board (202), the side of the second free end portion (3235) contacts the second inclined surface (3214b).

17. The board-to-board connector (100) as described in claim 9, characterized in that: The first grounding spring arm (313) includes a first arm portion (3134) and a first free end portion (3135), and the first abutting portion (3131) is connected between the first arm portion (3134) and the first free end portion (3135); the first circuit portion is located in the first arm portion (3134); The first base (311) is provided with a first abutting arm (3117) configured to cooperate with the first arm (3134), and the first abutting arm (3117) is cantilevered; When the first abutting portion (3131) of the first grounding spring arm (313) abuts against the first circuit board (201), the first arm portion (3134) contacts the first abutting arm (3117).

18. The board-to-board connector (100) as claimed in claim 13, characterized in that: The second grounding spring arm (323) includes a second arm portion (3234) and a second free end portion (3235), and the second abutment portion (3231) is connected between the second arm portion (3234) and the second free end portion (3235); the second circuit portion is located in the second arm portion (3234); The second base (321) is provided with a second abutting arm (3217) configured to cooperate with the second arm (3234), and the second abutting arm (3217) is cantilevered; When the second abutting portion (3231) of the second grounding spring arm (323) abuts against the second circuit board (202), the second arm portion (3234) contacts the second abutting arm (3217).

19. The board-to-board connector (100) as claimed in claim 1, characterized in that: The plurality of conductive terminals (2) are arranged along the first direction (A1-A1) and along the second direction (A2-A2) perpendicular to the first direction (A1-A1); There are multiple grounding isolation plates (3), and each grounding isolation plate (3) is located between two adjacent rows of the plurality of conductive terminals (2) along the first direction (A1-A1).

20. The board-to-board connector (100) as claimed in claim 1, characterized in that: Both the first grounding isolation plate (31) and the second grounding isolation plate (32) are metal sheets and can share parts.

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