Electric connector

Abstract

An electrical connector includes a first housing, a second housing, a first device, a first thermal pad, and a heat sink. The first shell is provided with a first inner wall, and the first inner wall is provided with a first protruding block. The first thermal pad is disposed between the first device and the first bump. One side of the first heat conduction pad is in contact with the first device, and the other side of the first heat conduction pad is in contact with the first protruding block. And the radiator is arranged on the first shell. According to the electric connector, heat generated by the first device during working can be transmitted to the radiator through the first heat conduction pad and the first shell for heat dissipation, so that the heat dissipation performance of the electric connector is improved.

Description

TECHNICAL FIELD

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

[0002] The electric connector in the related art generally comprises a first shell, a second shell, an inner circuit board located between the first shell and the second shell, and a plurality of cables electrically connected with the inner circuit board.

[0003] The inner circuit board is provided with a plurality of electronic devices, including but not limited to chips and the like. With the continuous enhancement of the function of the electric connector, the power of the electronic devices is increasing. The problem that arises is how to dissipate heat from the electronic devices to ensure that they are within the normal operating temperature range. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide an electric connector with an improved heat dissipation structure.

[0005] The embodiments of the present application adopt the following technical solutions: an electric connector comprises:

[0006] a first shell, the first shell being provided with a first inner wall, the first inner wall being provided with a first protrusion;

[0007] a second shell, the first shell and the second shell being fixed together;

[0008] a first device;

[0009] a first heat-conducting pad, the first heat-conducting pad being arranged between the first device and the first protrusion, one side of the first heat-conducting pad being in contact with the first device, and the other side of the first heat-conducting pad being in contact with the first protrusion; and

[0010] a heat sink, the heat sink being arranged on the first shell.

[0011] As a further improved technical solution of the embodiments of the present application, the electric connector comprises an inner circuit board arranged at least partially between the first shell and the second shell, the inner circuit board comprising a first surface and a second surface opposite to the first surface, the first device protruding from the first surface, and the inner circuit board further comprising a second device protruding from the second surface.

[0012] the second shell being provided with a second inner wall and a second outer wall opposite to the second inner wall, the second inner wall being provided with a second protrusion;

[0013] The electric connector further comprises a second heat-conductive pad, which is arranged between the second device and the second bump, and one side of the second heat-conductive pad is in contact with the second device, and the other side of the second heat-conductive pad is in contact with the second bump.

[0014] As a further improved technical solution of the embodiment of the present application, the first bump is provided with a first positioning groove, and the first heat-conductive pad is at least partially clamped in the first positioning groove.

[0015] As a further improved technical solution of the embodiment of the present application, the second bump is provided with a second positioning groove, and the second heat-conductive pad is at least partially clamped in the second positioning groove.

[0016] As a further improved technical solution of the embodiment of the present application, the first housing comprises a first outer wall opposite to the first inner wall, and the first outer wall comprises a first outer wall surface and a receiving groove, wherein the first outer wall surface is located at the bottom of the receiving groove.

[0017] The heat sink is at least partially clamped in the receiving groove and fixed to the first outer wall surface.

[0018] As a further improved technical solution of the embodiment of the present application, the heat sink comprises a clamping portion clamped in the receiving groove and a top plate protruding from the clamping portion; the clamping portion is provided with a plurality of heat dissipation grooves, which are arranged at intervals along a first direction; each heat dissipation groove penetrates through the heat sink along a second direction; and the second direction is perpendicular to the first direction.

[0019] As a further improved technical solution of the embodiment of the present application, the first inner wall is provided with a third bump, and the first bump and the third bump are arranged at intervals.

[0020] The electric connector further comprises a third heat-conductive pad, which is arranged between the built-in circuit board and the third bump, and one side of the third heat-conductive pad is in contact with the first surface and / or the first electronic component protruding from the first surface, and the other side of the third heat-conductive pad is in contact with the third bump.

[0021] As a further improved technical solution of the embodiment of the present application, the second inner wall is provided with a fourth bump, and the second bump and the fourth bump are arranged at intervals.

[0022] The electric connector further comprises a fourth heat-conductive pad, which is arranged between the built-in circuit board and the fourth bump, and one side of the fourth heat-conductive pad is in contact with the second surface and / or the second electronic component protruding from the second surface, and the other side of the fourth heat-conductive pad is in contact with the fourth bump.

[0023] As a further improved technical solution of the embodiment of the present application, the electric connector further comprises a fixing member for fixing the first shell and the second shell together.

[0024] The first shell is provided with a first extension protrusion, the second shell is provided with a second extension protrusion, and the built-in circuit board further comprises a tongue plate portion located between the first extension protrusion and the second extension protrusion, and the first extension protrusion, the tongue plate portion and the second extension protrusion are sequentially and spaced apart.

[0025] As a further improved technical solution of the embodiment of the present application, the electric connector further comprises a pull strap unlocking assembly, the pull strap unlocking assembly comprises a lock catch arm, a pull strap connected with the lock catch arm, and an elastic member abutting against the lock catch arm.

[0026] The lock catch arm comprises a first arm, a second arm opposite to the first arm, and a connecting wall connecting the first arm and the second arm; the first arm is provided with a first lock catch protrusion and a first abutting protrusion; the second arm is provided with a second lock catch protrusion and a second abutting protrusion.

[0027] The lock catch arm is mounted on the second shell, and the first lock catch protrusion and the second lock catch protrusion respectively protrude from both sides of the second shell.

[0028] The elastic member is two compression springs, one end of one compression spring abuts on the first abutting protrusion, and the other end abuts on the second shell; one end of the other compression spring abuts on the second abutting protrusion, and the other end abuts on the second shell.

[0029] As a further improved technical solution of the embodiment of the present application, the first heat-conducting pad is a heat-conducting silica gel sheet.

[0030] As a further improved technical solution of the embodiment of the present application, the built-in circuit board comprises a plurality of first conductive sheets exposed to the first surface, the plurality of first conductive sheets comprising a first signal conductive sheet, a second signal conductive sheet adjacent to the first signal conductive sheet, a first ground conductive sheet adjacent to the first signal conductive sheet and located on one side of the first signal conductive sheet, and a second ground conductive sheet adjacent to the second signal conductive sheet and located on one side of the second signal conductive sheet, the first signal conductive sheet and the second signal conductive sheet being arranged side by side along a first direction to form a first signal conductive sheet group, and the first ground conductive sheet and the second ground conductive sheet being respectively located on both sides of the first signal conductive sheet group along the first direction.

[0031] The electric connector further comprises:

[0032] a first cable including a first core, a second core, a first insulating layer wrapped on the first core, a second insulating layer wrapped on the second core, and a first ground layer located on an outer layer of the first insulating layer and the second insulating layer; the first core is in electrical contact with the first signal conductive sheet, and the second core is in electrical contact with the second signal conductive sheet; and

[0033] a first metal shield including a first main body, a first sidewall extending from one side of the first main body, a first extension extending outward from the first sidewall, a second sidewall extending from another side of the first main body, and a second extension extending outward from the second sidewall; the first metal shield is at least partially covered on the first cable, the first extension is in electrical contact with the first ground sheet, and the second extension is in electrical contact with the second ground sheet.

[0034] As a further improved technical solution of the embodiment of the present application, the first main body is provided with a first through hole, and the first ground layer is exposed in the first through hole; the first through hole is configured to accommodate solder to connect the first main body and the first ground layer together.

[0035] As a further improved technical solution of the embodiment of the present application, the first extension corresponds to the first ground sheet, and the first extension is provided with at least one first notch configured to accommodate solder to solder and fix the first extension and the first ground sheet.

[0036] As a further improved technical solution of the embodiment of the present application, the second extension corresponds to the second ground sheet, and the second extension is provided with at least one second notch configured to accommodate solder to solder and fix the second extension and the second ground sheet.

[0037] As a further improved technical solution of the embodiment of the present application, the plurality of first conductive sheets include a third signal conductive sheet, a fourth signal conductive sheet adjacent to the third signal conductive sheet, a third ground sheet adjacent to the third signal conductive sheet and located on one side of the third signal conductive sheet, and a fourth ground sheet adjacent to the fourth signal conductive sheet and located on one side of the fourth signal conductive sheet; the third signal conductive sheet and the fourth signal conductive sheet are arranged side by side along the first direction to form a second signal conductive sheet group, and the third ground sheet and the fourth ground sheet are respectively located on two sides of the second signal conductive sheet group along the first direction.

[0038] The electrical connector further includes:

[0039] A second cable includes a third core, a fourth core, a fourth insulation layer wrapped on the third core, a fifth insulation layer wrapped on the fourth core, and a second ground layer located on the outer layer of the fourth insulation layer and the fifth insulation layer; the third core is in electrical contact with the third signal conductive sheet, and the fourth core is in electrical contact with the fourth signal conductive sheet; and

[0040] A second metal shielding cover includes a second main body part, a third side wall extending from one side of the second main body part, a third extension part extending outward from the third side wall, a fourth side wall extending from the other side of the second main body part, and a fourth extension part extending outward from the fourth side wall; the second metal shielding cover is at least partially covered on the second cable, the third extension part is in electrical contact with the third ground sheet, and the fourth extension part is in electrical contact with the fourth ground sheet.

[0041] As a further improved technical solution of the embodiment of the present application, the second main body part is provided with a second through hole, and the second ground layer is exposed in the second through hole; the second through hole is configured to accommodate solder to connect the second main body part and the second ground layer together.

[0042] As a further improved technical solution of the embodiment of the present application, the first signal conductive sheet group is located in a first row, and the second signal conductive sheet group is located in a second row, and the first row and the second row are parallel to each other.

[0043] The first signal conductive sheet group and the second signal conductive sheet group are arranged in a second direction, and the second direction is perpendicular to the first direction.

[0044] As a further improved technical solution of the embodiment of the present application, the first cable and the second cable are arranged adjacent to each other in the first direction and located in the same layer.

[0045] Compared with the prior art, the electric connector in the embodiment of the present application includes a first housing provided with a first protrusion, a first heat-conductive pad is arranged between a first device and the first protrusion, one side of the first heat-conductive pad is in contact with the first device, and the other side of the first heat-conductive pad is in contact with the first protrusion. A heat sink is arranged on the first housing. In this way, the heat generated by the first device during operation can be transmitted to the heat sink through the first heat-conductive pad and the first housing for heat dissipation, thereby improving the heat dissipation performance of the electric connector. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a schematic perspective view of an electric connector in an embodiment of the present application;

[0047] Figure 2 is Figure 1 a perspective view from another angle;

[0048] Figure 3 is Figure 1 a partial exploded view of the frame;

[0049] Figure 4 is Figure 3 a partial exploded view of the frame from another angle;

[0050] Figure 5 is Figure 3 a further partial exploded view of the frame;

[0051] Figure 6 is Figure 5 a partial exploded view of the frame from another angle;

[0052] Figure 7 is Figure 6 a further exploded view of the frame with the heat sink, the fixing member and the pull-tab unlocking assembly removed;

[0053] Figure 8 is Figure 7 a perspective view from another angle;

[0054] Figure 9 is Figure 7 a partial exploded view of the internal circuit board, the cables and the metal shielding covers in the frame, wherein a first metal shielding cover, a second metal shielding cover, a third metal shielding cover and a fourth metal shielding cover are separated;

[0055] Figure 10 is Figure 9 a partial exploded view of the frame from another angle;

[0056] Figure 11 is Figure 9 a close-up view of the framed portion B in the frame;

[0057] Figure 12 is Figure 10 a close-up view of the framed portion C in the frame;

[0058] Figure 13 is Figure 1 a cross-sectional view along the line F-F in the frame;

[0059] Figure 14 is Figure 13 a close-up view of the framed portion D in the frame;

[0060] Figure 15 is Figure 13 a partial exploded view of the frame;

[0061] Figure 16 is Figure 15 partial enlarged view of the frame portion E.

[0062] Those skilled in the art will understand that the drawings provided herein are for illustrative purposes and that the drawings presented in the specification are only schematic and are shown by way of example and not as limitations. DETAILED DESCRIPTION

[0063] The exemplary embodiments of the present application will be described in detail below with reference to the attached 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 stated. The description of the following exemplary embodiments is not meant to represent all embodiments consistent with the present application; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present application as recited in the claims of the present application.

[0064] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present application. As used in the specification and claims of the present application, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0065] It should be understood that the use of terms such as "first" and "second", etc. in the specification and claims of the present application does not imply any order, quantity, or importance, but is only used to distinguish the features. Similarly, "one" or "a" and the like do not indicate a quantity limitation, but indicate the presence of at least one. Unless otherwise indicated, the terms "front", "back", "up", "down", and the like in the present application are used for convenience of description only and are not limited to a particular position or spatial orientation. The terms "include" or "contain" and the like are open-ended terms, which means that the elements before "include" or "contain" cover the elements after "include" or "contain" and their equivalents, and this does not exclude that the elements before "include" or "contain" can also contain other elements. If "several" appears in the present application, it means two and more.

[0066] Reference will now be made to Figures 1 to 16As shown, the embodiment of the present application discloses an electric connector 100, which comprises a first shell 41, a second shell 42, an inner circuit board 1 located at least partially between the first shell 41 and the second shell 42, a plurality of cables electrically connected with the inner circuit board 1, a plurality of metal shielding covers shielding the connection between the inner circuit board 1 and the cables, a plurality of heat-conducting pads 5 adhering to the inner circuit board 1, a plurality of fixing members 7 fixing the first shell 41 and the second shell 42 together, a heat sink 6 arranged on the first shell 41, and a pull-tab unlocking assembly 8.

[0067] In the embodiment of the present application, the first shell 41 is a metal shell, i.e. the first shell 41 is made of metal material. The first shell 41 comprises a first base portion 411, a first extended protruding portion 412 connected with one end of the first base portion 411, and a first mounting portion 413 connected with the other end of the first base portion 411. The first base portion 411 comprises a first inner wall 4111 and a first outer wall 4112 opposite to the first inner wall 4111. The first inner wall 4111 is provided with a first inner wall surface 41111, and a first protruding block 4111a and a third protruding block 4111b protruding from the first inner wall surface 41111. The first protruding block 4111a is provided with a first positioning groove 4111a1 extending along a first direction A1-A1 (e.g. left-right direction). The third protruding block 4111b is provided with a third positioning groove 4111b1 extending along the first direction A1-A1. In the embodiment of the present application, the first protruding block 4111a and the third protruding block 4111b are arranged at intervals along a second direction A2-A2 (e.g. front-rear direction).

[0068] The first outer wall 4112 comprises a first outer wall surface 41121 and a receiving groove 41122, wherein the first outer wall surface 41121 is located at the bottom of the receiving groove 41122.

[0069] The heat sink 6 is at least partially clamped in the receiving groove 41122 and fixed to the first outer wall surface 41121. In the embodiment of the present application, the heat sink 6 comprises a clamping portion 61 clamped in the receiving groove 41122 and a top plate 62 protruding upwardly from the clamping portion 61. The clamping portion 61 is provided with a plurality of heat dissipation grooves 611 extending through the clamping portion 61 along the second direction A2-A2. In the embodiment of the present application, the heat dissipation grooves 611 are arranged at intervals along the first direction A1-A1. The heat dissipation grooves 611 are through along the second direction A2-A2, so as to facilitate the air flow to take away heat as much as possible when the air flow flows through the heat dissipation grooves 611.

[0070] In the illustrated embodiment of the present application, the heat sink 6 is provided separately from the first housing 41 and fixed together (e.g., fixed by welding). The heat sink 6 and the first housing 41 are made of materials having different thermal conductivities.

[0071] The first extension protrusion 412 includes a first guide wall 4121, a first guide side wall 4122 vertically extending upward from one end of the first guide wall 4121, and a second guide side wall 4123 vertically extending upward from the other end of the first guide wall 4121.

[0072] The first mounting portion 413 is provided with a plurality of first mounting holes 4131 extending through the first mounting portion 413 in the third direction A3-A3.

[0073] In the illustrated embodiment of the present application, the second housing 42 is a metal housing, i.e., the second housing 42 is made of a metal material. The second housing 42 includes a second base portion 421, a second extension protrusion 422 connected to one end of the second base portion 421, and a second mounting portion 423 connected to the other end of the second base portion 421. The second base portion 421 includes a second inner wall 4211 and a second outer wall 4212 opposite to the second inner wall 4211. The second inner wall 4211 is provided with a second inner wall surface 42111, and a second protrusion 4211a and a fourth protrusion 4211b protruding from the second inner wall surface 42111. The second protrusion 4211a is provided with a second positioning groove 4211a1 extending in a first direction A1-A1 (e.g., left-right direction). The fourth protrusion 4211b is provided with a fourth positioning groove 4211b1 extending in the first direction A1-A1. In the illustrated embodiment of the present application, the second protrusion 4211a and the fourth protrusion 4211b are spaced apart in a second direction A2-A2 (e.g., front-rear direction).

[0074] The second extension protrusion 422 is spaced apart from the first extension protrusion 412 in the third direction A3-A3.

[0075] The second mounting portion 423 is provided with a plurality of second mounting holes 4231 extending in the third direction A3-A3.

[0076] In the illustrated embodiment of the present application, the first housing 41 and the second housing 42 are fixed together to form an accommodation space 40 between the first housing 41 and the second housing 42. The built-in circuit board 1 is at least partially accommodated in the accommodation space 40.

[0077] The fixing member 7 passes through the first mounting hole 4131 and is fixed in the second mounting hole 4231 to fix the first shell 41 and the second shell 42 together. In the illustrated embodiment of the present application, the fixing member 7 is a fastening screw. Of course, the fixing manner of the first shell 41 and the second shell 42 can be various, and the present application is not limited in this aspect.

[0078] The pull strap unlocking assembly 8 comprises a lock catch arm 81, a pull strap 82 connected with the lock catch arm 81, and an elastic member 83 abutting against the lock catch arm 81.

[0079] The lock catch arm 81 comprises a first arm 811, a second arm 812 opposite to the first arm 811, and a connecting wall 813 connecting the first arm 811 and the second arm 812. The first arm 811 is provided with a first lock catch protrusion 8111 and a first abutting protrusion 8112. The second arm 812 is provided with a second lock catch protrusion 8121 and a second abutting protrusion 8122.

[0080] In the illustrated embodiment of the present application, the pull strap 82 is overmolded on the lock catch arm 81 to drive the lock catch arm 81 to move back and forth along the second direction A2-A2.

[0081] In the illustrated embodiment of the present application, the lock catch arm 81 is mounted on the second shell 42, and the first lock catch protrusion 8111 and the second lock catch protrusion 8121 protrude from both sides of the second shell 42, respectively. In the illustrated embodiment of the present application, the elastic member 83 is two compression springs, one end of one compression spring abuts against the first abutting protrusion 8112, and the other end abuts against the second mounting portion 423 of the second shell 42; one end of the other compression spring abuts against the second abutting protrusion 8122, and the other end abuts against the second mounting portion 423 of the second shell 42.

[0082] The lock catch arm 81 can be driven by the pull strap 82 to move along the second direction A2-A2. When the lock catch arm 81 is pulled by the pull strap 82, the lock catch arm 81 moves backward along the second direction A2-A2, the elastic member 83 is compressed, and the first lock catch protrusion 8111 and the second lock catch protrusion 8121 move toward the inside of the second shell 42 along the first direction A1-A1 to realize unlocking. When the pulling force on the pull strap 82 is removed after unlocking, the elastic member 83 restores the elastic force to drive the lock catch arm 81 to move forward along the second direction A2-A2.

[0083] Please refer to Figures 5 to 12As shown, in the illustrated embodiment of the present application, the built-in circuit board 1 comprises a first surface 11 (e.g. an upper surface), a second surface 12 (e.g. a lower surface) opposite to the first surface 11, a plurality of first conductive pads 13 exposed to the first surface 11, and a plurality of second conductive pads 14 exposed to the second surface 12.

[0084] The plurality of first conductive pads 13 comprises a first signal conductive pad S1, a second signal conductive pad S2 adjacent to the first signal conductive pad S1, a first ground conductive pad G1 adjacent to the first signal conductive pad S1 and located at one side of the first signal conductive pad S1, and a second ground conductive pad G2 adjacent to the second signal conductive pad S2 and located at one side of the second signal conductive pad S2. The first signal conductive pad S1 and the second signal conductive pad S2 are arranged side by side along the first direction A1-A1 (e.g. left-right direction) to form a first signal conductive pad group DP1, and the first ground conductive pad G1 and the second ground conductive pad G2 are respectively located at two sides of the first signal conductive pad group DP1 along the first direction A1-A1. In an embodiment of the present application, the first signal conductive pad group DP1 is a first differential pair for transmitting signals.

[0085] In the illustrated embodiment of the present application, the first ground conductive pad G1 and the second ground conductive pad G2 are both in the shape of a straight strip and extend along the second direction A2-A2 (e.g. front-back direction), which is perpendicular to the first direction A1-A1. The width of the first ground conductive pad G1 along the first direction A1-A1 is greater than the width of the first signal conductive pad S1 along the first direction A1-A1, and also greater than the width of the second signal conductive pad S2 along the first direction A1-A1; the width of the second ground conductive pad G2 along the first direction A1-A1 is greater than the width of the first signal conductive pad S1 along the first direction A1-A1, and also greater than the width of the second signal conductive pad S2 along the first direction A1-A1. In this way, the first ground conductive pad G1 and the second ground conductive pad G2 can provide better shielding effect for the first signal conductive pad group DP1, thereby facilitating to improve the quality of signal transmission.

[0086] The first plurality of conductive sheets 13 further comprises a third signal conductive sheet S3, a fourth signal conductive sheet S4 adjacent to the third signal conductive sheet S3, a third ground conductive sheet G3 adjacent to the third signal conductive sheet S3 and on one side of the third signal conductive sheet S3, and a fourth ground conductive sheet G4 adjacent to the fourth signal conductive sheet S4 and on one side of the fourth signal conductive sheet S4. The third signal conductive sheet S3 and the fourth signal conductive sheet S4 are arranged side by side along the first direction A1-A1 (e.g. left-right direction) to form a second signal conductive sheet group DP2, and the third ground conductive sheet G3 and the fourth ground conductive sheet G4 are respectively located on two sides of the second signal conductive sheet group DP2 along the first direction A1-A1. In an embodiment of the present application, the second signal conductive sheet group DP2 is a second differential pair for transmitting signals.

[0087] In the illustrated embodiment of the present application, the third ground conductive sheet G3 and the fourth ground conductive sheet G4 are both in the shape of a straight strip and extend along a second direction A2-A2 (e.g. front-back direction), which is perpendicular to the first direction A1-A1. The width of the third ground conductive sheet G3 along the first direction A1-A1 is greater than the width of the third signal conductive sheet S3 along the first direction A1-A1, and also greater than the width of the fourth signal conductive sheet S4 along the first direction A1-A1; the width of the fourth ground conductive sheet G4 along the first direction A1-A1 is greater than the width of the third signal conductive sheet S3 along the first direction A1-A1, and also greater than the width of the fourth signal conductive sheet S4 along the first direction A1-A1. In this way, the third ground conductive sheet G3 and the fourth ground conductive sheet G4 can provide better shielding effect for the first signal conductive sheet group DP1, thereby facilitating improvement of the quality of signal transmission.

[0088] In the illustrated embodiment of the present application, the first signal conductive sheet group DP1 is located in a first row, and the second signal conductive sheet group DP2 is located in a second row, which are parallel to each other. The first signal conductive sheet group DP1 and the second signal conductive sheet group DP2 are arranged in a staggered manner along the second direction A2-A2. In this way, crosstalk between the first signal conductive sheet group DP1 and the second signal conductive sheet group DP2 can be reduced.

[0089] The second plurality of conductive sheets 14 are arranged in the same way as the first plurality of conductive sheets 13, and the present application will not be described again.

[0090] In addition, in the illustrated embodiment of the present application, the built-in circuit board 1 further comprises a tongue plate portion 15 located at one end (e.g., the front end) of the built-in circuit board 1. The tongue plate portion 15 is configured to be inserted into a mating connector (not shown), and at least one surface of the tongue plate portion 15 is provided with a plurality of mating conductive pieces (not shown). The tongue plate portion 15 is located between the first extension protrusion 412 and the second extension protrusion 422 along the third direction A3-A3. The first extension protrusion 412, the tongue plate portion 15, and the second extension protrusion 422 are sequentially and spaced apart along the third direction A3-A3.

[0091] As shown in Figure 11 and Figure 12 The plurality of cables include a plurality of first cables 21, a plurality of second cables 22, a plurality of third cables 23, and a plurality of fourth cables 24. The first cables 21 are electrically connected to the first signal conductive piece S1 and the second signal conductive piece S2. The second cables 22 are electrically connected to the third signal conductive piece S3 and the fourth signal conductive piece S4. The plurality of third cables 23 and the plurality of fourth cables 24 are electrically connected to the plurality of second conductive pieces 14. For simplicity of description, only one first cable 21 and one second cable 22 located on the same side of the built-in circuit board 1 are described below.

[0092] The first cable 21 includes a first core 211, a second core 212, a first insulating layer 213 wrapped around the first core 211, a second insulating layer 214 wrapped around the second core 212, and a first ground layer 215 located on the outer layer of the first insulating layer 213 and the second insulating layer 214.

[0093] The first core 211 is in electrical contact with the first signal conductive piece S1, and the second core 212 is in electrical contact with the second signal conductive piece S2. In an embodiment of the present application, the first core 211 is fixedly connected to the first signal conductive piece S1 by welding, and the second core 212 is fixedly connected to the second signal conductive piece S2 by welding.

[0094] Similarly, the second cable 22 includes a third core 221, a fourth core 222, a fourth insulating layer 223 wrapped around the third core 221, a fifth insulating layer 224 wrapped around the fourth core 222, and a second ground layer 225 located on the outer layer of the fourth insulating layer 223 and the fifth insulating layer 224.

[0095] The third core 221 is in electrical contact with the third signal conductive sheet S3, and the fourth core 222 is in electrical contact with the fourth signal conductive sheet S4. In an embodiment of the present application, the third core 221 is welded with the third signal conductive sheet S3, and the fourth core 222 is welded with the fourth signal conductive sheet S4.

[0096] Those skilled in the art can understand that, by arranging the first signal conductive sheet group DP1 and the second signal conductive sheet group DP2 to be misaligned along the second direction A2-A2, the first cable 21 and the second cable 22 can be arranged on the same layer, thereby avoiding the increase in height caused by cable stacking.

[0097] The metal shielding covers include a first metal shielding cover 31, a second metal shielding cover 32, a third metal shielding cover 33, and a fourth metal shielding cover 34. The first metal shielding cover 31 is buckled around the connection between the first cable 21 and the first conductive sheet 13, the second metal shielding cover 32 is buckled around the connection between the second cable 22 and the first conductive sheet 13, the third metal shielding cover 33 is buckled around the connection between the third cable 23 and the second conductive sheet 14, and the fourth metal shielding cover 34 is buckled around the connection between the fourth cable 24 and the second conductive sheet 14.

[0098] In the illustrated embodiment of the present application, the first metal shielding cover 31 includes a first main body portion 310, a first side wall 311 extending from one side of the first main body portion 310, a first extension portion 313 extending outward from the first side wall 311, a second side wall 312 extending from the other side of the first main body portion 310, and a second extension portion 314 extending outward from the second side wall 312. The first metal shielding cover 31 is at least partially covered on the first cable 21, the first extension portion 313 is in electrical contact with the first ground sheet G1, and the second extension portion 314 is in electrical contact with the second ground sheet G2. The first main body portion 310 is provided with a first through hole 3101, and the first ground layer 215 is exposed in the first through hole 3101. The first through hole 3101 is used to fill solder to connect the first main body portion 310 and the first ground layer 215 together. Preferably, the solder in the first through hole 3101 fills the first through hole 3101, so as to completely cover the part of the first ground layer 215 exposed in the first through hole 3101, so as to further improve the shielding.

[0099] In the illustrated embodiment of the present application, the first extension 313 corresponds to the first ground sheet G1, and the first extension 313 is provided with at least one first notch 3131 for filling with solder to solder-fix the first extension 313 to the first ground sheet G1. It is understood by those skilled in the art that the number, shape and size of the first notches 3131 can be flexibly adjusted according to actual needs, and the present application will not be described hereinafter.

[0100] Similarly, the second extension 314 corresponds to the second ground sheet G2, and the second extension 314 is provided with at least one second notch 3141 for filling with solder to solder-fix the second extension 314 to the second ground sheet G2. It is understood by those skilled in the art that the number, shape and size of the second notches 3141 can be flexibly adjusted according to actual needs, and the present application will not be described hereinafter.

[0101] In the illustrated embodiment of the present application, the second metal shield 32 includes a second main body portion 320, a third side wall 321 extending from one side of the second main body portion 320, a third extension 323 extending outwardly from the third side wall 321, a fourth side wall 322 extending from the other side of the second main body portion 320, and a fourth extension 324 extending outwardly from the fourth side wall 322. The second metal shield 32 is at least partially covered on the second cable 22, the third extension 323 is in electrical contact with the third ground sheet G3, and the fourth extension 324 is in electrical contact with the fourth ground sheet G4. The second main body portion 320 is provided with a second through hole 3201 in which the second ground layer 225 is exposed; the second through hole 3201 is used to fill with solder to connect the second main body portion 320 and the second ground layer 225 together. Preferably, the solder in the second through hole 3201 fills the second through hole 3201, so as to completely cover the part of the second ground layer 225 exposed in the second through hole 3201, so as to further improve the shielding.

[0102] In the illustrated embodiment of the present application, the third extension 323 corresponds to the third ground sheet G3, and the third extension 323 is provided with at least one third notch 3231 for filling with solder to solder-fix the third extension 323 to the third ground sheet G3. It is understood by those skilled in the art that the number, shape and size of the third notches 3231 can be flexibly adjusted according to actual needs, and the present application will not be described hereinafter.

[0103] Similarly, the fourth extension 324 corresponds to the fourth ground sheet G4, and the fourth extension 324 is provided with at least one fourth notch 3241 for filling solder to weld and fix the fourth extension 324 and the fourth ground sheet G4. It can be understood by those skilled in the art that the number, shape and size of the fourth notches 3241 can be flexibly adjusted according to actual needs, and the present application will not be repeated here.

[0104] In the illustrated embodiment of the present application, the second metal shielding cover 32 is the same as the first metal shielding cover 31 to share parts and reduce costs.

[0105] The present application is provided with a first metal shielding cover 31, which includes a first main body part 310, a first side wall 311 extending from one side of the first main body part 310, a first extension 313 extending outward from the first side wall 311, a second side wall 312 extending from the other side of the first main body part 310, and a second extension 314 extending outward from the second side wall 312; the first metal shielding cover 31 is at least partially covered on the first cable 21, the first extension 313 is in electrical contact with the first ground sheet G1, and the second extension 314 is in electrical contact with the second ground sheet G2; the first main body part 310 is provided with a first through hole 3101, and the first ground layer 215 is exposed in the first through hole 3101; the first through hole 3101 is used to fill solder to connect the first main body part 310 and the first ground layer 215 together. In this way, the electrical connector 100 of the present application has better shielding effect.

[0106] The second metal shielding cover 32 can have similar shielding effect as the first metal shielding cover 31, and the present application will not be repeated here.

[0107] Please refer to Figures 1 to 16 In the illustrated embodiment of the present application, the built-in circuit board 1 further includes a first device 171 (for example, a first chip) protruding upward from the first surface 11 and a second device 172 (for example, a second chip) protruding downward from the second surface 12.

[0108] The several heat-conducting pads 5 include a first heat-conducting pad 51, a second heat-conducting pad 52, a third heat-conducting pad 53, and a fourth heat-conducting pad 54. The first heat-conducting pad 51 is arranged on the first device 171 and is at least partially clamped in the first positioning groove 4111a1. The second heat-conducting pad 52 is arranged on the second device 172 and is at least partially clamped in the second positioning groove 4211a1. In an embodiment of the present application, the first heat-conducting pad 51 and the second heat-conducting pad 52 are both heat-conducting silica gel sheets, i.e., are made of heat-conducting silica gel. In this way, on the one hand, the heat-conducting efficiency can be improved, and on the other hand, the first device 171 and the second device 172 can be prevented from being damaged due to excessive extrusion.

[0109] The third heat-conducting pad 53 is in contact with the first surface 11 of the built-in circuit board 1 or with the first electronic component protruding from the first surface 11 of the built-in circuit board 1 to conduct heat. The third heat-conducting pad 53 is at least partially clamped in the third positioning groove 4111b1.

[0110] The fourth heat-conducting pad 54 is in contact with the second surface 12 of the built-in circuit board 1 or with the second electronic component protruding from the second surface 12 of the built-in circuit board 1 to conduct heat. The fourth heat-conducting pad 54 is at least partially clamped in the fourth positioning groove 4211b1.

[0111] In the illustrated embodiment of the present application, the first heat-conducting pad 51 and the third heat-conducting pad 53 are respectively in contact with the first protrusion 4111a and the third protrusion 4111b. The second heat-conducting pad 52 and the fourth heat-conducting pad 54 are respectively in contact with the second protrusion 4211a and the fourth protrusion 4211b.

[0112] As can be understood by those skilled in the art, the heat generated by the first device 171 is conducted to the heat sink 6 through the first heat-conducting pad 51 and the first shell 41, and the heat generated by the built-in circuit board 1 and / or the first electronic component is conducted to the heat sink 6 through the third heat-conducting pad 53 and the first shell 41. Of course, as can be understood by those skilled in the art, the heat generated by the first device 171 can also be conducted to the first shell 41 through the first heat-conducting pad 51 and dissipated through the first shell 41, and the heat generated by the built-in circuit board 1 and / or the first electronic component can also be conducted to the first shell 41 through the third heat-conducting pad 53 and dissipated through the first shell 41.

[0113] The heat generated by the second device 172 is transferred to the second housing 42 through the second heat-conducting pad 52 for heat dissipation; the heat generated by the built-in circuit board 1 and / or the second electronic component is transferred to the second housing 42 through the fourth heat-conducting pad 54 for heat dissipation. Of course, those skilled in the art can understand that the heat generated by the second device 172 can also be transferred to the second housing 42 through the second heat-conducting pad 52 and dissipated through the second housing 42; the heat generated by the built-in circuit board 1 and / or the second electronic component can also be transferred to the second housing 42 through the fourth heat-conducting pad 54 and dissipated through the second housing 42.

[0114] The above embodiments are only used to illustrate the technical solutions described in the present application and not to limit 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 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, characterized in that, include: A first housing, the first housing having a first inner wall, the first inner wall having a first protrusion; A second housing, wherein the first housing is fixed together with the second housing; First device; A first thermal pad is disposed between the first device and the first bump, with one side of the first thermal pad in contact with the first device and the other side of the first thermal pad in contact with the first bump. as well as A radiator is disposed on the first housing.

2. The electrical connector as described in claim 1, characterized in that: The electrical connector includes an embedded circuit board at least partially disposed between the first housing and the second housing. The embedded circuit board includes a first surface and a second surface opposite to the first surface. The first device protrudes from the first surface, and the embedded circuit board also includes a second device protruding from the second surface. The second housing has a second inner wall and a second outer wall opposite to the second inner wall, and the second inner wall has a second protrusion; The electrical connector further includes a second thermal pad, which is disposed between the second device and the second bump, with one side of the second thermal pad in contact with the second device and the other side of the second thermal pad in contact with the second bump.

3. The electrical connector as described in claim 2, characterized in that: The first protrusion is provided with a first positioning groove, and the first thermal pad is at least partially held in the first positioning groove.

4. The electrical connector as described in claim 3, characterized in that: The second protrusion is provided with a second positioning groove, and the second thermal pad is at least partially engaged in the second positioning groove.

5. The electrical connector as described in claim 1, characterized in that: The first housing includes a first outer wall opposite to the first inner wall, the first outer wall including a first outer wall surface and a receiving groove, wherein the first outer wall surface is located at the bottom of the receiving groove; The radiator is at least partially held in the receiving groove and fixed to the first outer wall surface.

6. The electrical connector as described in claim 5, characterized in that: The radiator includes a retaining part that is held in the receiving groove and a top plate that protrudes from the retaining part; the retaining part is provided with a plurality of heat dissipation grooves, which are spaced apart along a first direction; each heat dissipation groove passes through the radiator along a second direction; the second direction is perpendicular to the first direction.

7. The electrical connector as claimed in claim 2, characterized in that: The first inner wall is provided with a third protrusion, and the first protrusion and the third protrusion are spaced apart; The electrical connector further includes a third thermal pad, which is disposed between the built-in circuit board and the third protrusion. One side of the third thermal pad is in contact with the first surface and / or the first electronic component protruding from the first surface, and the other side of the third thermal pad is in contact with the third protrusion.

8. The electrical connector as claimed in claim 7, characterized in that: The second inner wall is provided with a fourth protrusion, and the second protrusion and the fourth protrusion are spaced apart; The electrical connector further includes a fourth thermal pad, which is disposed between the built-in circuit board and the fourth protrusion. One side of the fourth thermal pad is in contact with the second surface and / or a second electronic component protruding from the second surface, and the other side of the fourth thermal pad is in contact with the fourth protrusion.

9. The electrical connector as claimed in claim 2, characterized in that: The electrical connector further includes a fastener that secures the first housing and the second housing together; The first housing has a first extended protrusion, the second housing has a second extended protrusion, and the built-in circuit board also includes a tongue plate portion, which is located between the first extended protrusion and the second extended protrusion, and the first extended protrusion, the tongue plate portion and the second extended protrusion are arranged sequentially at intervals.

10. The electrical connector as claimed in claim 1, characterized in that: The electrical connector further includes a pull-tap unlocking assembly, which includes a locking spring arm, a pull strap connected to the locking spring arm, and an elastic member abutting against the locking spring arm. The locking spring arm includes a first spring arm, a second spring arm opposite to the first spring arm, and a connecting wall connecting the first spring arm and the second spring arm; the first spring arm is provided with a first locking protrusion and a first abutting protrusion; the second spring arm is provided with a second locking protrusion and a second abutting protrusion; The latching arm is mounted on the second housing, and the first latching protrusion and the second latching protrusion protrude from the second housing from both sides respectively; The elastic element consists of two compression springs, one end of which abuts against the first abutting protrusion and the other end of which abuts against the second housing; the other compression spring abuts against the second abutting protrusion and the other end of which abuts against the second housing.

11. The electrical connector according to any one of claims 1 to 10, characterized in that: The first thermal pad is a thermally conductive silicone sheet.

12. The electrical connector as claimed in claim 2, characterized in that: The built-in circuit board includes a plurality of first conductive sheets exposed on the first surface. The plurality of first conductive sheets include a first signal conductive sheet, a second signal conductive sheet adjacent to the first signal conductive sheet, a first ground sheet adjacent to the first signal conductive sheet and located on one side of the first signal conductive sheet, and a second ground sheet adjacent to the second signal conductive sheet and located on one side of the second signal conductive sheet. The first signal conductive sheet and the second signal conductive sheet are arranged side by side along a first direction to form a first signal conductive sheet group. The first ground sheet and the second ground sheet are respectively located on both sides of the first signal conductive sheet group along the first direction. The electrical connector also includes: A first cable, comprising a first core, a second core, a first insulating layer wrapped around the first core, a second insulating layer wrapped around the second core, and a first grounding layer located outside the first and second insulating layers; the first core is electrically in contact with a first signal conductive piece, and the second core is electrically in contact with a second signal conductive piece; and A first metal shielding cover includes a first main body, a first sidewall extending from one side of the first main body, a first extension extending outward from the first sidewall, a second sidewall extending from the other side of the first main body, and a second extension extending outward from the second sidewall; the first metal shielding cover at least partially covers the first cable, the first extension is in electrical contact with the first grounding plate, and the second extension is in electrical contact with the second grounding plate.

13. The electrical connector as claimed in claim 12, characterized in that: The first body portion is provided with a first through hole, and the first ground layer is exposed in the first through hole; the first through hole is configured to accommodate solder to connect the first body portion to the first ground layer.

14. The electrical connector as claimed in claim 13, characterized in that: The first extension corresponds to the first grounding piece, and the first extension has at least one first notch configured to receive solder to weld and fix the first extension to the first grounding piece.

15. The electrical connector as claimed in claim 14, characterized in that: The second extension corresponds to the second grounding piece, and the second extension has at least one second notch configured to receive solder to weld the second extension to the second grounding piece.

16. The electrical connector as claimed in claim 12, characterized in that: The plurality of first conductive sheets include a third signal conductive sheet, a fourth signal conductive sheet adjacent to the third signal conductive sheet, a third grounding sheet adjacent to the third signal conductive sheet and located on one side of the third signal conductive sheet, and a fourth grounding sheet adjacent to the fourth signal conductive sheet and located on one side of the fourth signal conductive sheet. The third signal conductive sheet and the fourth signal conductive sheet are arranged side by side along the first direction to form a second signal conductive sheet group. The third grounding sheet and the fourth grounding sheet are respectively located on both sides of the second signal conductive sheet group along the first direction. The electrical connector also includes: The second cable includes a third core, a fourth core, a fourth insulating layer wrapped around the third core, a fifth insulating layer wrapped around the fourth core, and a second grounding layer located outside the fourth and fifth insulating layers; the third core is electrically in contact with the third signal conductive piece, and the fourth core is electrically in contact with the fourth signal conductive piece; and The second metal shield includes a second main body, a third sidewall extending from one side of the second main body, a third extension extending outward from the third sidewall, a fourth sidewall extending from the other side of the second main body, and a fourth extension extending outward from the fourth sidewall; the second metal shield at least partially covers the second cable, the third extension is in electrical contact with the third grounding plate, and the fourth extension is in electrical contact with the fourth grounding plate.

17. The electrical connector as claimed in claim 16, characterized in that: The second body portion is provided with a second through hole, and the second ground layer is exposed in the second through hole; the second through hole is configured to accommodate solder to connect the second body portion to the second ground layer.

18. The electrical connector as claimed in claim 16, characterized in that: The first signal conductive sheet group is located in the first row, and the second signal conductive sheet group is located in the second row, with the first row and the second row being parallel to each other; The first signal conductive sheet group and the second signal conductive sheet group are staggered along a second direction, which is perpendicular to the first direction.

19. The electrical connector as claimed in claim 16, characterized in that: The first cable and the second cable are arranged adjacent to each other along the first direction and are located on the same layer.

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