[0032] In order to facilitate a better understanding of the purpose, structure, features, and effects of the present invention, the present invention will now be further described with reference to the drawings and specific embodiments.
[0033] Such as figure 1 with image 3 As shown, the electrical connector 100 of the present invention includes an insulating body 1 and a plurality of terminals 2 for connecting with a plurality of cables 3.
[0034] Such as figure 1 with Image 6 As shown, the insulating body 1 is assembled by an upper body 11, a middle body 12, and a lower body 13. The three rear ends are flush, the middle body 12 extends forward beyond the upper body 11 and the lower body 13, and the middle body 12 The upper surface and the lower surface are respectively provided with a plurality of receiving grooves 14, arranged in two rows and passing through the middle body 12 in the front and rear direction. The upper row of receiving grooves 14 penetrates the upper surface of the middle body 12, and the lower row of receiving grooves 14 penetrates the middle body. On the lower surface of 12, each receiving groove 14 has a first inclined surface 141 and a second inclined surface 142 that are inclined. The first inclined surface 141 and the second inclined surface 142 are perpendicular to each other and intersect at the bottom of the receiving groove 14 to form a The intersection line 143, the first inclined surface 141 and the second inclined surface 142 are respectively located on both sides of the vertical plane where the intersection line 143 is located; two adjacent receiving slots 14 are connected by a horizontal connecting surface 15 so that the Two adjacent receiving slots 14 are separated by a certain distance.
[0035] In other embodiments, the insulating body 1 may only be assembled from the upper body 11 and the lower body 13 into a two-piece type, or the insulating body 1 may be integrally formed into a one-piece type, and so on.
[0036] Such as figure 2 with image 3 As shown, a plurality of terminals 2 are arranged symmetrically up and down in two rows and corresponding to injection molding (insert-molding) on the upper body 11 and the lower body 13, including a plurality of pairs of signal terminals 21 to transmit differential signals and a plurality of ground terminals 22, each A signal terminal 21 has a base portion 212 in the shape of a horizontal flat plate for conducting backward connection to a circuit board 6 (please refer to Figure 7 ), a twisted portion 213 extending forward from the base 212, and a contact portion 211 extending forward from the twisted portion 213. The twisting of the twisted portion 213 makes the plate surface of the contact portion 211 and the plate surface of the base 212 present an acute angle. The multiple contact portions 211 of the multiple signal terminals 21 in the same row are arranged in a row of receiving slots 14 along the horizontal direction.
[0037] Such as Figure 5 with Image 6 As shown, the contact portion 211 has a mating surface 2111, a first surface 2112 opposite to the mating surface 2111, and a second surface 2113 and a third surface 2114 connecting the mating surface 2111 and the first surface 2112, and the mating surface 2111 The first surface 2112 is the board surface of the signal terminal 21, the second surface 2113 and the third surface 2114 are both cut surfaces of the signal terminal 21, and the second surface 2113 is perpendicular to the first surface 2112. In other embodiments, the mating surface 2111 may be a cut surface of the signal terminal 21 and the second surface 2113 may be a board surface of the signal terminal 21.
[0038] When the upper body 11 and the lower body 13 are respectively assembled with the middle body 12, the contact portion 211 enters the receiving groove 14, the first surface 2112 and the first inclined surface 141 are parallel to form a surface contact, and the height of the first surface 2112 is higher than that of the first surface 2112. The height of an inclined surface 141, the height of the first surface 2112 may also be equal to the height of the first inclined surface 141, the second surface 2113 and the second inclined surface 142 are parallel to form surface contact, so that the contact portion 211 is inclinedly disposed in the receiving groove 14 in.
[0039] Such as image 3 with Image 6 As shown, two adjacent pairs of signal terminals 21 are separated by at least one ground terminal 22 to eliminate crosstalk between two adjacent pairs of signal terminals 21. Each ground terminal 22 has a horizontal flat plate 221 resting on it. Connect surface 15 on.
[0040] Such as figure 2 As shown, two shielding sheets 23 are respectively disposed on the upper and lower surfaces of the middle body 12, each shielding sheet 23 is connected to a row of ground terminals 22, and each shielding sheet 23 is torn to form a plurality of protrusions 231 facing away from the middle. The direction of the main body 12 protrudes from the surface of the shielding sheet 23, and the plurality of protrusions 231 are arranged in two rows of front and rear. The shielding sheet 23 also has a row of circular holes 232 between the front and rear rows of protrusions 231.
[0041] In this embodiment, the protruding portion 231 is formed by tearing the shielding sheet 23. In other embodiments, the protruding portion 231 may only protrude from the surface of the shielding sheet 23 without tearing, or an additional conductor (not shown) , The same below) is electrically connected to the shielding sheet 23 to form the protrusion 231, such as welding a metal sheet (not shown, the same below) to the shielding sheet 23 to form the protrusion 231, and so on.
[0042] In this embodiment, the signal terminal 21, the ground terminal 22, and the shielding sheet 23 on the same surface of the intermediate body 12 are punched out of the same metal sheet (not shown, the same below). During the processing of the metal sheet, The circular hole 232 is used for the positioning and transmission of the metal sheet. After that, the signal terminal 21 and the shielding sheet 23 are punched and separated. The grounding terminal 22 is connected to the shielding sheet 23 and used for grounding to enhance the grounding effect. At the same time, the grounding terminal 22 and the shielding sheet 23 There is no need for punching separation and welding to fix, and the process is simple.
[0043] Such as image 3 with Figure 4 As shown, each cable 3 has two cores 31 corresponding to a pair of signal terminals 21, the two cores 31 are located on the same side of the corresponding pair of signal terminals 21, and the two cores 31 are both made of an insulating layer. 32 coating, a shielding layer 33 coating the insulating layer 32, a sheath 34 coating the shielding layer 33, and a part of each core 31 protrudes from the insulating layer 32 for the mating surface 2111 of the contact portion 211 Phase laser welding.
[0044] The core 31 is guided by the abutting surface 2111 or the second inclined surface 142, enters the accommodating groove 14 and slides downwards. One side of the core 31 abuts against the abutting surface 2111 of the contact portion 211, and the other abuts against the first Two inclined surfaces 142 (of course, in other embodiments, the wire core 31 may not contact the second inclined surface 142), the mating surface 2111 and the second inclined surface 142 together support the wire core 31 upwards, and at the same time under the action of gravity The core 31 is not easy to shake, which facilitates the subsequent laser welding of the core 31 and the mating surface 2111; the height of the axis line 311 of the core 31 is higher than the receiving groove 14 and is between the upper and lower edges of the mating surface 2111 In between, most of the wire core 31 is exposed in the receiving groove 14, which is convenient for welding.
[0045] After that, like Image 6 As shown, the laser L irradiates the contact portion between the mating surface 2111 and the core 31 vertically from above, so that the two are firmly welded.
[0046] A slot 341 is provided on the left and right sides of the sheath 34 of the cable 3, and the two slots 341 are aligned left and right. The shielding layer 33 is exposed in the two slots 341, and the two protrusions 231 enter the two slots 341 respectively. Abutting against the shielding layer 33, and the protrusion 231 is laser welded to the shielding layer 33. Since the cables 3 are very close, two spaces for the protrusions 231 aligned left and right are horizontally arranged between two adjacent cables 3 Not enough, so the projections 231 of the shielding layers 33 laser welded to the two adjacent cables 3 are staggered back and forth.
[0047] In this embodiment, since the opposite sides of each cable 3 are clamped by two protrusions 231, the two protrusions 231 can limit the left and right displacement of the cable 3, and the protrusions 231 are laser welded to the shielding layer. 33. Enhance the stability of the contact between the protruding portion 231 and the shielding layer 33, and prevent the two from separating, thereby ensuring the shielding effect; in other embodiments, the protruding portion 231 may be one or more than two, or no protruding portion may be provided 231, the protrusion 231 and the shielding layer 33 may not be laser welded.
[0048] The electrical connector of the present invention has the following beneficial effects:
[0049] 1. Since the contact portion 211 has a first surface 2112 in contact with the first inclined surface 141, and a second surface 2113 in contact with the second inclined surface 142, the contact portion 211 is inclined, so that the contact portion 211 is The butting surface 2111 is arranged obliquely and facing upwards. The inclined butting surface 2111 not only increases the irradiation area of the laser light L, but also reflects the laser light. When the laser light L deviates from the contact part of the core 31 and the butting surface 2111, the butting surface is irradiated At 2111, the butting surface 2111 reflects the laser L downwards to the contact portion 211 between the core 31 and the butting surface 2111, so that the laser energy is well focused, the energy is fully utilized, and the welding effect is better; and the butting surface 2111 Fully exposed upward is more conducive to checking the welding effect; in addition, the wire core 31 is guided into the receiving groove 14 through the inclined contact portion 211, so that the wire core 31 is assembled into the receiving groove 14.
[0050] 2. Since the core 31 abuts against the mating surface 2111 and the second inclined surface 142, and due to the action of gravity, the core 31 is not easy to shake, which facilitates the welding of the core 31 and the contact portion 211. In addition, the first inclined surface 141 and the second inclined surface 142 of the receiving groove 14 limit the positions of the two sides of the contact portion 211, and the abutting surface 2111 can still extend or contract in the width direction, so that the width of the contact portion 211 can be changed while the receiving The size of the groove 14 does not need to be redesigned. Similarly, the size of the wire core 31 and the receiving groove 14 of different diameters does not need to be redesigned, that is, the electrical connector 100 of the present invention can be applied to the wire core 31 of different diameters. Therefore, when the width of the contact portion 211 of the signal terminal 21 changes or the diameter of the core 31 of the cable 3 changes, there is no need to design a new mold to meet the requirements of the width change of the receiving groove 14, thereby reducing costs.
[0051] 3. The height of the first surface 2112 is higher than or equal to the height of the first inclined surface 141, so that the first surface 2112 fully shields the first inclined surface 141 in the vertical direction. 141 will not be exposed upward on the first surface 2112, so as to prevent the laser beam L from directly irradiating the first inclined surface 141 during the laser welding process of the core 31 and the mating surface 2111 to damage the insulating body 1.
[0052] 4. The axis line 311 of the wire core 31 is higher than the receiving groove 14 to prevent the wire core 31 from being excessively plunged into the receiving groove 14 so that most of the wire core 31 is not exposed in the receiving groove 14 and affects its cooperation with the contact portion 211 In turn affect the welding effect. The height of the axis line 311 of the core 31 is between the upper and lower edges of the mating surface 2111, so that in the horizontal direction, the widest part of the core 31 is matched with the mating surface 2111 to ensure the subsequent welding effect.
[0053] The above detailed description is only the description of the preferred embodiments of the present invention, and does not therefore limit the scope of the patent of the present invention. Therefore, all equivalent technical changes made by using the content of this creation specification and illustrations are included in the creation of the patent. Within range.
