Electric connector

Abstract

An electric connector comprises a shell, a first built-in circuit board and a second built-in circuit board. The shell comprises a first shell body and a second shell body, and the first shell body is provided with a first abutting protruding column. The first built-in circuit board comprises a first base part and a first lingual plate part. The second built-in circuit board comprises a second base part and a second tongue plate part. The first built-in circuit board and the second built-in circuit board are arranged in a stacked mode. The first abutting protruding column at least partially penetrates through the first base part in the second direction so as to abut against the second base part. Through the arrangement, the electric connector provided by the invention omits a middle component for fixing the first built-in circuit board and the second built-in circuit board, so that the structure is simplified, and the installation convenience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to an electrical connector, and belongs to the technical field of connectors. BACKGROUND

[0002] An electrical connector in the related art comprises a first housing, a second housing, a first built-in circuit board, a second built-in circuit board, and an intermediate member. The intermediate member is located between the first housing and the second housing, and is used to separate and fix the first built-in circuit board and the second built-in circuit board.

[0003] However, this design structure is complex, and since the intermediate member occupies the space between the first built-in circuit board and the second built-in circuit board, it is not conducive to installation. SUMMARY

[0004] The present application aims to provide an electrical connector with an improved structure.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: an electrical connector comprising:

[0006] a housing comprising a mating space configured to mate with a mating connector; the housing comprises a first housing and a second housing, wherein the first housing is provided with a first abutting protrusion;

[0007] a first built-in circuit board comprising a first base and a first tongue plate part protruding from the first base in a first direction; and

[0008] a second built-in circuit board comprising a second base and a second tongue plate part protruding from the second base in the first direction;

[0009] the first built-in circuit board and the second built-in circuit board are arranged in a stacked manner in a second direction perpendicular to the first direction;

[0010] the first built-in circuit board and the second built-in circuit board are at least partially located between the first housing and the second housing, and the first tongue plate part and the second tongue plate part protrude into the mating space in the first direction to be configured to be inserted into the mating connector;

[0011] the first abutting protrusion at least partially penetrates the first base in the second direction to abut the second base.

[0012] As a further improved technical solution of the present application, the first abutting protrusion comprises a first main part, a first end part connected to the first main part, and a first abutting surface located at the junction of the first main part and the first end part.

[0013] The first base is provided with a first slot penetrating through the first base along the second direction;

[0014] The second base is provided with a second slot penetrating through the second base along the second direction;

[0015] The first main body part at least partially penetrates through the first slot, the first abutting surface abuts the second base along the second direction, and the first end part is accommodated in the second slot.

[0016] As a further improved technical solution of the present application, the first end part is in a contracted shape relative to the first main body part;

[0017] The size of the first slot is greater than the size of the second slot, so that the first end part can penetrate through the first slot to be accommodated in the second slot.

[0018] As a further improved technical solution of the present application, the outer contour of the first main body part is adapted to the first slot, so that the first main body part can at least limit the first built-in circuit board along the first direction.

[0019] As a further improved technical solution of the present application, the outer contour of the first end part is adapted to the second slot, so that the first end part can at least limit the second built-in circuit board along the first direction.

[0020] As a further improved technical solution of the present application, the first housing includes a first side wall and a second side wall opposite to the first side wall, wherein the inner side of the first side wall and the inner side of the second side wall are both provided with at least one first abutting protrusion;

[0021] The first built-in circuit board includes a first side edge and a second side edge opposite to the first side edge, wherein the first side edge and the second side edge are both provided with at least one first slot;

[0022] The second built-in circuit board includes a third side edge and a fourth side edge opposite to the third side edge, wherein the third side edge and the fourth side edge are both provided with at least one second slot.

[0023] As a further improved technical solution of the present application, the first side wall and the second side wall are both provided with a plurality of first abutting protrusions arranged at intervals along the first direction;

[0024] The first side edge and the second side edge are both provided with a plurality of first slots arranged at intervals along the first direction;

[0025] The third side edge and the fourth side edge are both provided with a plurality of second grooves arranged at intervals along the first direction.

[0026] As a further improved technical solution of the present application, the second shell is provided with a second abutting protrusion which at least partially penetrates the second base along the second direction to abut against the first base.

[0027] As a further improved technical solution of the present application, the second base is provided with a clearance slot penetrating the second base along the second direction; the second abutting protrusion at least partially penetrates the clearance slot along the second direction to abut against the first base.

[0028] As a further improved technical solution of the present application, the first base comprises a first surface and a second surface opposite to the first surface;

[0029] The second base comprises a third surface and a fourth surface opposite to the third surface;

[0030] The second surface of the first base and the third surface of the second base are arranged face to face along the second direction;

[0031] After the first abutting protrusion at least partially penetrates the first base along the second direction, the first abutting surface abuts against the third surface of the second base;

[0032] After the second abutting protrusion at least partially penetrates the second base along the second direction, the second abutting protrusion abuts against the second surface of the first base.

[0033] As a further improved technical solution of the present application, the second abutting protrusion comprises an abutting protrusion at the end of the second abutting protrusion, which abuts against the second surface of the first base.

[0034] As a further improved technical solution of the present application, the second shell comprises a third side wall and a fourth side wall opposite to the third side wall, wherein the inner side of the third side wall and the inner side of the fourth side wall are both provided with at least one second abutting protrusion;

[0035] The second built-in circuit board comprises a third side edge and a fourth side edge opposite to the third side edge, wherein the third side edge and the fourth side edge are both provided with at least one clearance slot.

[0036] As a further improved technical solution of the present application, the third side wall and the fourth side wall are both provided with a plurality of second abutting protrusions arranged at intervals along the first direction;

[0037] The third side edge and the fourth side edge are both provided with a plurality of the accommodation slots arranged at intervals along the first direction.

[0038] As a further improved technical solution of the present application, the first base comprises a plurality of first mounting conductive sheets arranged on the first surface and a plurality of second mounting conductive sheets arranged on the second surface.

[0039] The second base comprises a plurality of third mounting conductive sheets arranged on the third surface and a plurality of fourth mounting conductive sheets arranged on the fourth surface.

[0040] The electric connector further comprises a plurality of first cables electrically connected with the plurality of first mounting conductive sheets, a plurality of second cables electrically connected with the plurality of second mounting conductive sheets, a plurality of third cables electrically connected with the plurality of third mounting conductive sheets, and a plurality of fourth cables electrically connected with the plurality of fourth mounting conductive sheets, the plurality of second cables and the plurality of fourth cables being located in a receiving space between the first base and the second base along the second direction.

[0041] As a further improved technical solution of the present application, the electric connector further comprises a pull tape assembly fixed to the housing and configured to pull the electric connector out of the counterpart connector.

[0042] As a further improved technical solution of the present application, the pull tape assembly comprises a fixing sheet fixed to the first housing, a pull tape connected with the fixing sheet, and a pull ring connected with the pull tape.

[0043] Compared with the prior art, the first housing of the electric connector of the present application is provided with a first abutting protrusion, wherein the first abutting protrusion at least partially penetrates the first base along the second direction to abut against the second base. In this way, the intermediate component in the related art is omitted, the structure is simplified, and the installation convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a perspective view of the electric connector of the present application in an embodiment;

[0045] Figure 2 is Figure 1 a perspective view from another angle;

[0046] Figure 3 is Figure 1 a partial perspective exploded view of

[0047] Figure 4 is Figure 3 a partial perspective exploded view from another angle;

[0048] Figure 5 isFigure 3 Close-up view of circled portion B;

[0049] Figure 6 Figure 3 Close-up view of circled portion C;

[0050] Figure 7 Figure 4 Close-up view of circled portion D;

[0051] Figure 8 Cross-sectional view along line E-E; Figure 1

[0052] Figure 9 Cross-sectional view along line F-F. Figure 1 DETAILED DESCRIPTION

[0053] The exemplary embodiments of the present application will now be described in detail below with reference to the accompanying drawings. If there are several embodiments, the features of the embodiments can be combined with each other unless they conflict. When the description refers to the drawings, the same numbers on different drawings represent the same or similar elements unless otherwise indicated. The matters identified as the example exemplary embodiments described in the following exemplary embodiments of the present application are intended to be illustrative only and are not intended to limit the scope of the present application as claimed. Rather, they are intended to cover all alternatives, modifications and equivalents that are within the scope of the present application as claimed.

[0054] The terms used in the present application are merely for the purpose of describing particular embodiments and are not intended to limit the scope of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0055] It should be understood that the use of terms such as "first", "second", and the like, used in the description and the claims of the present application are merely intended to distinguish between similar elements and are not intended to signify order or precedence of such elements. Also, the use of the terms "a" or "an", as well as "the" and / or "said", are intended to convey a quantity of one or more of the referenced elements, unless the context clearly indicates otherwise. As used herein, the terms "front", "back", "upper", "lower", and the like, are merely intended to facilitate the description of the application and are not intended to limit the scope of the application to a particular position or spatial orientation. The terms "include", "comprise", and the like, are inclusive and meant to convey that the elements listed after such terms are encompassed, but not limited to, the elements specifically recited. As used herein, the term "plurality" means two or more. ​​​​

[0056] Referring to Figures 1 to 9 The present application discloses an electrical connector 100, which comprises a housing 3, a first built-in circuit board 1 mounted in the housing 3, a second built-in circuit board 2 mounted in the housing 3, a plurality of cables 4, and a pull strap assembly 5 fixed on the housing 3. In the embodiment of the present application, the electrical connector 100 is a plug connector, which is used to be inserted into a mating connector (not shown) to achieve electrical connection with the mating connector. The pull strap assembly 5 is configured to pull out the electrical connector 100 from the mating connector when it is needed to separate the electrical connector 100 from the mating connector.

[0057] The housing 3 comprises a mating space 30 configured to cooperate with the mating connector. In the embodiment of the present application, the housing 3 comprises a first housing 31 and a second housing 32, wherein the first housing 31 and the second housing 32 are assembled together. The mating space 30 is formed by the first housing 31 and the second housing 32.

[0058] Referring to Figure 3 , Figure 4 , Figure 8 and Figure 9 In the embodiment of the present application, the first housing 31 comprises a first body portion 311 and a first extension portion 312 extending from the first body portion 311. The first body portion 311 comprises a substantially T-shaped mounting groove 3111, a protrusion 3112 located in the mounting groove 3111, a first mounting passage 3113 located in the mounting groove 3111 and communicating with the mounting groove 3111, and a second mounting passage 3114. The protrusion 3112 is located between the first mounting passage 3113 and the second mounting passage 3114.

[0059] The first extension portion 312 comprises a first side wall 3121, a second side wall 3122 opposite to the first side wall 3121, and a first outer wall 3123 (e.g., a top wall) connecting the first side wall 3121 and the second side wall 3122. The first outer wall 3123 is provided with a top surface 3123c.

[0060] In the embodiment of the present application, the first side wall 3121 and the second side wall 3122 are symmetrically arranged, wherein the inner side of the first side wall 3121 and the inner side of the second side wall 3122 are both provided with a plurality of first abutting protrusions 33 arranged at intervals along a first direction A1-A1 (e.g., a front-rear direction). In the embodiment of the present application, the plurality of first abutting protrusions 33 are integrally formed with the first side wall 3121 and the second side wall 3122 to improve the structural strength.

[0061] In the illustrated embodiment of the present application, each first abutting protrusion 33 comprises a first body portion 331, a first end portion 332 connected to the first body portion 331, and a first abutting surface 333 located at the junction of the first body portion 331 and the first end portion 332. In the illustrated embodiment of the present application, the first body portion 331 and the first end portion 332 each have a side surface 334 in the shape of a circular arc.

[0062] In addition, the first side wall 3121 is provided with a first notch 3121a, and the second side wall 3122 is provided with a second notch 3122a. The first notch 3121a and the second notch 3122a are used to cooperate with the second housing 32.

[0063] In the illustrated embodiment of the present application, the first outer wall 3123 is provided with a first clamping recess 3123a and a second clamping recess 3123b, which are used to cooperate with the pull-tab assembly 5.

[0064] In the illustrated embodiment of the present application, the pull-tab assembly 5 comprises a fixing sheet 51 fixed to the first housing 31, a pull-tab 52 connected to the fixing sheet 51, and a pull ring 53 connected to the pull-tab 52. In an embodiment of the present application, the fixing sheet 51 comprises a T-shaped mounting portion 510 received in the mounting groove 3111, a first hook portion 511 extending forward from the mounting portion 510, and a second hook portion 512 extending forward from the mounting portion 510. The first hook portion 511 and the second hook portion 512 are located on both sides of the fixing sheet 51, the first hook portion 511 is clamped in the first clamping recess 3123a, and the second hook portion 512 is clamped in the second clamping recess 3123b. In an embodiment of the present application, the fixing sheet 51 and the first housing 31 are each made of a metal material. The first hook portion 511 and the second hook portion 512 can also be welded to the first housing 31 to improve the bonding force therebetween.

[0065] In the illustrated embodiment of the present application, the mounting portion 510 is provided with a first mounting hole 5101 corresponding to the first mounting passage 3113, a second mounting hole 5102 corresponding to the second mounting passage 3114, and a cooperation groove 5103 cooperating with the protrusion 3112. The front end of the pull-tab 52 is buckled on the protrusion 3112.

[0066] The second housing 32 comprises a second body portion 321 and a second extension portion 322 extending from the second body portion 321. The second body portion 321 cooperates with the first body portion 311. The second body portion 321 is provided with a third mounting passage 3211 corresponding to the first mounting passage 3113 and a fourth mounting passage 3212 corresponding to the second mounting passage 3114.

[0067] In the illustrated embodiment of the present application, the electrical connector 100 is further provided with a first fastener 61 and a second fastener 62. In one embodiment of the present application, the first fastener 61 and the second fastener 62 are both fastening bolts.

[0068] When the pull strap assembly 5 is mounted to the first housing 31, the first fastener 61 is sequentially inserted into the first mounting hole 5101, the first mounting passage 3113 and the third mounting passage 3211, and is fixed to the second housing 32; similarly, the second fastener 62 is sequentially inserted into the second mounting hole 5102, the second mounting passage 3114 and the fourth mounting passage 3212, and is fixed to the second housing 32. Of course, those skilled in the art can understand that the mounting mode of the pull strap assembly 5 to the first housing 31 can be flexibly adjusted as needed, and the present application does not limit this.

[0069] The second extension portion 322 comprises a third side wall 3221, a fourth side wall 3222 opposite to the third side wall 3221, and a second outer wall 3223 (e.g. a bottom wall) connecting the third side wall 3221 and the fourth side wall 3222.

[0070] In the illustrated embodiment of the present application, the third side wall 3221 and the fourth side wall 3222 are symmetrically arranged, wherein the inner side of the third side wall 3221 and the inner side of the fourth side wall 3222 are both provided with a plurality of second abutting protrusions 34 arranged at intervals along the first direction A1-A1. In the illustrated embodiment of the present application, the plurality of second abutting protrusions 34 are integrally formed with the third side wall 3221 and the fourth side wall 3222 to improve the structural strength.

[0071] Please refer to Figure 6As shown, in the illustrated embodiment of the present application, each second abutting protrusion 34 comprises an abutting protrusion 341 at the end (e.g. top end) of the second abutting protrusion 34. The abutting protrusion 341 is provided with a second abutting surface 3411. It is understood by those skilled in the art that, in the illustrated embodiment of the present application, the abutting protrusion 341 is small in size, so that the second abutting surface 3411 can achieve reliable abutment with the first built-in circuit board 1 without being subject to its own flatness requirements.

[0072] In the illustrated embodiment of the present application, the third side wall 3221 and the fourth side wall 3222 are at least partially accommodated in the first notch 3121a and the second notch 3122a. The second outer wall 3223 is provided with a bottom surface 3223a.

[0073] Please refer to Figure 5 , Figure 8 and Figure 9 As shown, in the illustrated embodiment of the present application, the first built-in circuit board 1 comprises a first base 11 and a first tongue plate portion 12 protruding from the first base 11 in the first direction A1-A1. The first base 11 comprises a first surface 111 (e.g. upper surface), a second surface 112 (e.g. lower surface) opposite to the first surface 111, a first side edge 113 at one side (e.g. left side) of the first base 11, a second side edge 114 at the other side (e.g. right side) of the first base 11, a plurality of first mounting conductive pads 115 provided on the first surface 111, and a plurality of second mounting conductive pads 116 provided on the second surface 112.

[0074] In the illustrated embodiment of the present application, the first side edge 113 and the second side edge 114 are each provided with a plurality of first slots 117 arranged at intervals in the first direction A1-A1. The first slots 117 extend through the first base 11 in a second direction A2-A2 (e.g. up-down direction). In the illustrated embodiment of the present application, the first slots 117 are C-shaped. Of course, those skilled in the art can understand that the number and shape of the first slots 117 can be flexibly designed as needed; for example, the first slots 117 can also be U-shaped, rectangular, circular, etc.

[0075] The first tongue plate portion 12 protrudes into the docking space 30, and comprises a plurality of first contact conductive pads (not shown) exposed in the docking space 30 to electrically contact the docking connector.

[0076] In the illustrated embodiment of the present application, the second built-in circuit board 2 comprises a second base 21 and a second tongue plate portion 22 protruding from the second base 21 along the first direction A1-A1. The second base 21 comprises a third surface 211 (e.g., an upper surface), a fourth surface 212 (e.g., a lower surface) opposite to the third surface 211, a third side edge 213 located at one side (e.g., a left side) of the second base 21, a fourth side edge 214 located at the other side (e.g., a right side) of the second base 21, a plurality of third mounting conductive pads 215 provided on the third surface 211, and a plurality of fourth mounting conductive pads 216 provided on the fourth surface 212.

[0077] In the illustrated embodiment of the present application, the third side edge 213 and the fourth side edge 214 are each provided with a plurality of second slots 217 arranged at intervals along the first direction A1-A1. The second slots 217 extend through the second base 21 along the second direction A2-A2. In the illustrated embodiment of the present application, the second slots 217 are C-shaped. Of course, it will be appreciated by those skilled in the art that the number and shape of the second slots 217 can be designed flexibly as needed; for example, the first slots 117 can also be U-shaped, rectangular, circular, etc. In the illustrated embodiment of the present application, the size of the first slots 117 is greater than the size of the second slots 217, so as to facilitate the first abutting protrusion column 33 to pass through the first slots 117 smoothly. In the illustrated embodiment of the present application, the size of the first slots 117 along the first direction A1-A1 is greater than the size of the second slots 217 along the first direction A1-A1, so as to facilitate the first abutting protrusion column 33 to pass through the first slots 117 smoothly.

[0078] In the illustrated embodiment of the present application, the second base 21 is further provided with a plurality of accommodation slots 218 extending through the second base 21 along the second direction A2-A2. In the illustrated embodiment of the present application, the third side edge 213 and the fourth side edge 214 are each provided with a plurality of accommodation slots 218 arranged at intervals along the first direction A1-A1.

[0079] The second tongue plate portion 22 protrudes into the docking space 30, and the second tongue plate portion 22 comprises a plurality of second contact conductive pads (not shown) exposed in the docking space 30 to electrically contact the docking connector.

[0080] The plurality of cables 4 includes a plurality of first cables 41 electrically connected with the plurality of first mounting conductive sheets 115, a plurality of second cables 42 electrically connected with the plurality of second mounting conductive sheets 116, a plurality of third cables 43 electrically connected with the plurality of third mounting conductive sheets 215, and a plurality of fourth cables 44 electrically connected with the plurality of fourth mounting conductive sheets 216. The plurality of second cables 42 and the plurality of fourth cables 44 are located in the receiving space 10 between the first base 11 and the second base 21 along the second direction A2-A2, thereby facilitating arrangement of the plurality of second cables 42 and the plurality of fourth cables 44.

[0081] The first built-in circuit board 1 and the second built-in circuit board 2 are arranged in a stacked manner along the second direction A2-A2 and at least partially located between the first housing 31 and the second housing 32. The first tongue plate portion 12 and the second tongue plate portion 22 protrude into the docking space 30 along the first direction A1-A1 to be configured to be inserted into the docking connector.

[0082] When assembled, the first abutting protrusion 33 at least partially penetrates the first base 11 along the second direction A2-A2 to abut against the second base 21, and the second abutting protrusion 34 at least partially penetrates the second base 21 along the second direction A2-A2 to abut against the first base 11. In this way, the first built-in circuit board 1 and the second built-in circuit board 2 can be fixed in the second direction A2-A2.

[0083] Please refer to Figures 5 to 9As shown, specifically, in the illustrated embodiment of the present application, the first main body part 331 of the first abutting protrusion 33 at least partially passes through the first slot 117, and the first abutting surface 333 of the first abutting protrusion 33 abuts against the third surface 211 of the second base 21 along the second direction A2-A2. The first end part 332 of the first abutting protrusion 33 is accommodated in the second slot 217. Specifically, after the first abutting protrusion 33 at least partially passes through the first base 11 along the second direction A2, the first abutting surface 333 of the first abutting protrusion 33 abuts against the third surface 211 of the second base 21. In the illustrated embodiment of the present application, the outer contour of the first main body part 331 is adapted to the first slot 117, so that the first main body part 331 can limit the first built-in circuit board 1 along the first direction A1-A1 and / or along a third direction A3-A3 (e.g., left-right direction). In the illustrated embodiment of the present application, the outer contour of the first end part 332 is adapted to the second slot 217, so that the first end part 332 can limit the second built-in circuit board 2 along the first direction A1-A1 and / or along the third direction A3-A3. The third direction A3-A3 is perpendicular to the first direction A1-A1 and the second direction A2-A2.

[0084] The second abutting protrusion 34 at least partially passes through the accommodation slot 218 along the second direction A2-A2 to abut against the first base 11. Specifically, after the second abutting protrusion 34 at least partially passes through the second base 21 along the second direction A2-A2, the second abutting surface 3411 of the abutting protrusion 341 of the second abutting protrusion 34 abuts against the second surface 112 of the first base 11.

[0085] After installation, the top surface 3123c, the first built-in circuit board 1, the second built-in circuit board 2, and the bottom surface 3223a are sequentially arranged from top to bottom along the second direction A2-A2.

[0086] Compared with the prior art, the first housing 31 and the second housing 32 of the electrical connector 100 of the present application are respectively provided with the first abutting protrusion 33 and the second abutting protrusion 34, wherein the first abutting protrusion 33 at least partially passes through the first base 11 along the second direction A2-A2 to abut against the second base 21, and the second abutting protrusion 34 at least partially passes through the second base 21 along the second direction A2-A2 to abut against the first base 11. In this way, the intermediate member in the related art is omitted, the structure is simplified, and the installation convenience is improved. In addition, the accommodation space 10 between the first base 11 and the second base 21 is beneficial to cable arrangement, weight reduction, increase of electronic components on the built-in circuit board, and heat dissipation.

[0087] The above embodiments are only used for illustrating the present application and not limiting the technical solutions described in the present application. The understanding of the present application should be based on the skilled in the art. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the skilled in the art can still modify or equivalently replace the present application, and all the technical solutions and improvements which do not deviate from the spirit and scope of the present application should be covered in the scope of claims of the present application.

Claims

1. An electrical connector (100), characterized in that, include: The housing (3) includes a mating space (30) configured to mate with a mating connector; the housing (3) includes a first housing (31) and a second housing (32), wherein the first housing (31) is provided with a first abutting protrusion (33); The first built-in circuit board (1) includes a first base (11) and a first tongue portion (12) protruding from the first base (11) along a first direction (A1-A1); as well as The second built-in circuit board (2) includes a second base (21) and a second tongue portion (22) protruding from the second base (21) along the first direction (A1-A1); The first built-in circuit board (1) and the second built-in circuit board (2) are stacked along the second direction (A2-A2), which is perpendicular to the first direction (A1-A1). The first built-in circuit board (1) and the second built-in circuit board (2) are at least partially located between the first housing (31) and the second housing (32), and the first tongue portion (12) and the second tongue portion (22) protrude into the mating space (30) along the first direction (A1-A1) to be configured for insertion into the mating connector; The first abutting protrusion (33) passes at least partially through the first base (11) along the second direction (A2-A2) to abut against the second base (21).

2. The electrical connector (100) as claimed in claim 1, characterized in that: The first abutting protrusion (33) includes a first main body (331), a first end (332) connected to the first main body (331), and a first abutting surface (333) located at the junction of the first main body (331) and the first end (332); The first base (11) is provided with a first slot (117) that runs through the first base (11) along the second direction (A2-A2); The second base (21) is provided with a second slot (217) that penetrates the second base (21) along the second direction (A2-A2); The first main body (331) passes through the first slot (117) at least partially, the first abutting surface (333) abuts against the second base (21) along the second direction (A2-A2), and the first end (332) is received in the second slot (217).

3. The electrical connector (100) as described in claim 2, characterized in that: The first end portion (332) is constricted relative to the first main body portion (331); The first slot (117) is larger than the second slot (217) so that the first end (332) can pass through the first slot (117) and be received in the second slot (217).

4. The electrical connector (100) as claimed in claim 2, characterized in that: The outer contour of the first main body (331) is adapted to the first slot (117) so that the first main body (331) can limit the first built-in circuit board (1) at least along the first direction (A1-A1).

5. The electrical connector (100) as described in claim 2, characterized in that: The outer contour of the first end (332) is adapted to the second slot (217) so that the first end (332) can limit the second built-in circuit board (2) at least along the first direction (A1-A1).

6. The electrical connector (100) as claimed in claim 2, characterized in that: The first housing (31) includes a first sidewall (3121) and a second sidewall (3122) opposite to the first sidewall (3121), wherein at least one first abutting protrusion (33) is provided on the inner side of the first sidewall (3121) and the inner side of the second sidewall (3122); The first built-in circuit board (1) includes a first side edge (113) and a second side edge (114) opposite to the first side edge (113), wherein the first side edge (113) and the second side edge (114) are each provided with at least one of the first slots (117); The second built-in circuit board (2) includes a third side edge (213) and a fourth side edge (214) opposite to the third side edge (213), wherein the third side edge (213) and the fourth side edge (214) are each provided with at least one second slot (217).

7. The electrical connector (100) as claimed in claim 6, characterized in that: Both the first sidewall (3121) and the second sidewall (3122) are provided with a plurality of first abutting protrusions (33) arranged at intervals along the first direction (A1-A1); Both the first side edge (113) and the second side edge (114) are provided with a plurality of first slots (117) arranged at intervals along the first direction (A1-A1); Both the third side edge (213) and the fourth side edge (214) are provided with a plurality of second slots (217) arranged at intervals along the first direction (A1-A1).

8. The electrical connector (100) as claimed in claim 2, characterized in that: The second housing (32) is provided with a second abutting protrusion (34), which at least partially passes through the second base (21) along the second direction (A2-A2) to abut against the first base (11).

9. The electrical connector (100) as claimed in claim 8, characterized in that: The second base (21) is provided with a relief groove (218) extending through the second base (21) along the second direction (A2-A2); the second abutting protrusion (34) extends at least partially through the relief groove (218) along the second direction (A2-A2) to abut against the first base (11).

10. The electrical connector (100) as claimed in claim 9, characterized in that: The first base (11) includes a first surface (111) and a second surface (112) opposite to the first surface (111); The second base (21) includes a third surface (211) and a fourth surface (212) opposite to the third surface (211); The second surface (112) of the first base (11) and the third surface (211) of the second base (21) are arranged face to face along the second direction (A2-A2); After the first abutting protrusion (33) passes through the first base (11) at least partially along the second direction (A2-A2), the first abutting surface (333) abuts against the third surface (211) of the second base (21); After the second abutting protrusion (34) passes at least partially through the second base (21) along the second direction (A2-A2), the second abutting protrusion (34) abuts against the second surface (112) of the first base (11).

11. The electrical connector (100) as claimed in claim 10, characterized in that: The second abutting protrusion (34) includes an abutting protrusion (341) located at the end of the second abutting protrusion (34), the abutting protrusion (341) abutting against the second surface (112) of the first base (11).

12. The electrical connector (100) as claimed in claim 9, characterized in that: The second housing (32) includes a third sidewall (3221) and a fourth sidewall (3222) opposite to the third sidewall (3221), wherein at least one second abutting protrusion (34) is provided on the inner side of the third sidewall (3221) and the inner side of the fourth sidewall (3222); The second built-in circuit board (2) includes a third side edge (213) and a fourth side edge (214) opposite to the third side edge (213), wherein the third side edge (213) and the fourth side edge (214) are each provided with at least one of the relief grooves (218).

13. The electrical connector (100) as claimed in claim 12, characterized in that: Both the third sidewall (3221) and the fourth sidewall (3222) are provided with a plurality of second abutting protrusions (34) arranged at intervals along the first direction (A1-A1); Both the third side edge (213) and the fourth side edge (214) are provided with a plurality of clearance grooves (218) arranged at intervals along the first direction (A1-A1).

14. The electrical connector (100) as claimed in claim 10, characterized in that: The first base (11) includes a plurality of first mounting conductive sheets (115) disposed on the first surface (111) and a plurality of second mounting conductive sheets (116) disposed on the second surface (112); The second base (21) includes a plurality of third mounting conductive sheets (215) disposed on the third surface (211) and a plurality of fourth mounting conductive sheets (216) disposed on the fourth surface (212); The electrical connector (100) further includes a plurality of first cables (41) electrically connected to the plurality of first mounting conductive plates (115), a plurality of second cables (42) electrically connected to the plurality of second mounting conductive plates (116), a plurality of third cables (43) electrically connected to the plurality of third mounting conductive plates (215), and a plurality of fourth cables (44) electrically connected to the plurality of fourth mounting conductive plates (216). The plurality of second cables (42) and the plurality of fourth cables (44) are located in a receiving space (10) between the first base (11) and the second base (21) along the second direction (A2-A2).

15. The electrical connector (100) as claimed in claim 1, characterized in that: The electrical connector (100) further includes a pull strap assembly (5) fixed to the housing (3) and configured to pull the electrical connector (100) out of the mating connector.

16. The electrical connector (100) as claimed in claim 15, characterized in that: The pull strap assembly (5) includes a fixing piece (51) fixed to the first housing (31), a pull strap (52) connected to the fixing piece (51), and a pull ring (53) connected to the pull strap (52).

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