CN216529678U

CN216529678U - Connector assembly

Info

Publication number: CN216529678U
Application number: CN202122517388.0U
Authority: CN
Inventors: 陈瑶; 邹小乐
Original assignee: HENGNAN DEYI PRECISION ELECTRONIC INDUSTRIAL CO LTD
Current assignee: HENGNAN DEYI PRECISION ELECTRONIC INDUSTRIAL CO LTD
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-05-13
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a connector assembly, which comprises an electric connector, a plurality of terminals and a plurality of terminals, wherein each terminal is provided with a conductive part and a contact part; the first end of the circuit board is provided with a plurality of terminal conductive parts which are electrically connected with the corresponding conductive parts, and the second end of the circuit board is provided with a plurality of cable conductive parts which are electrically connected with the corresponding cables; the first injection molding piece is used for coating and fixing the plurality of terminal conducting parts and the plurality of conducting parts, and the second end of the circuit board is positioned outside the first injection molding piece; and the second injection molding piece is coated outside the electric connector, the circuit board and the first injection molding piece. The utility model can ensure that the molding material of the first injection molding part can be better filled to the peripheries of the conductive parts and the conductive parts of the terminals by punching glue, ensure the electrical connection between the circuit board and the terminals and avoid the influence on signal transmission caused by poor contact.

Description

Connector assembly

[ technical field ] A method for producing a semiconductor device

The present invention relates to a connector assembly, and more particularly, to a connector assembly capable of preventing signal transmission from being affected by poor glue flushing.

[ background of the utility model ]

The conventional connector assembly comprises an electrical connector, a circuit board and an insulating inner mold, wherein the electrical connector comprises a plurality of terminals, each terminal comprises a welding part, the circuit board comprises a plurality of conductive parts for welding with the corresponding welding parts, the circuit board is also used for welding with a cable, and the insulating inner mold is coated on the electrical connector, the welding parts of the terminals and the outer part of the circuit board through one-time glue punching and injection molding, so that the electrical connector and the circuit board are relatively fixed, the welding parts of the terminals and the conductive parts are relatively fixed, and a signal transmission path in the connector assembly is insulated and isolated from the outside.

The insulating inner die of the connector assembly is formed by one-time glue punching and injection molding, the volume of the insulating inner die is relatively large, if the glue punching pressure is insufficient during injection molding, the forming material of the insulating inner die can not be filled to a corresponding position easily due to poor glue punching, wherein the forming material of the insulating inner die can not be filled to the surrounding positions of the welding parts of the terminals easily, the position stability between the welding parts of the terminals and the conductive parts of the circuit board is influenced, and then the contact between the welding parts and the conductive parts is poor easily caused, so that the signal transmission of the connector assembly is influenced.

Therefore, there is a need for a new connector assembly that overcomes the above problems.

[ Utility model ] content

The utility model aims to provide a connector assembly which comprises a first injection molding part and a second injection molding part, wherein the first injection molding part is small in size, so that the injection pressure of punching glue can be controlled, molding materials of the first injection molding part can be better filled around a plurality of terminal conductive parts of a circuit board and the conductive parts of a plurality of terminals through punching glue, and a signal transmission path inside the connector assembly is isolated from the outside in an insulating way through the second injection molding part with large size; meanwhile, the second end of the circuit board is located outside the first injection molding part, so that the size of the first injection molding part is further reduced, the molding material of the first injection molding part is filled around the conducting part of the terminal, the electric connection between the circuit board and the terminal is ensured, and the influence on signal transmission caused by poor contact is avoided.

In order to achieve the purpose, the utility model adopts the following technical scheme: a connector assembly for mating with a mating element in a mating direction, comprising: an electrical connector having a plurality of terminals, each of the terminals having a conductive portion and a contact portion for contacting the mating member; a circuit board, a first end of which is provided with a plurality of terminal conductive parts, a second end of which is provided with a plurality of cable conductive parts, each terminal conductive part is electrically connected with the corresponding conductive part, each cable conductive part is used for electrically connecting with the corresponding cable, and the width of the second end of the circuit board is larger than the maximum width of the first end of the circuit board; the first injection molding piece is used for coating and fixing a plurality of terminal conducting parts of the circuit board and the conducting parts of the terminals, and the second end of the circuit board is positioned outside the first injection molding piece; and the second injection molding piece is coated outside the electric connector, the circuit board and the first injection molding piece.

Furthermore, the connector assembly further comprises a shielding shell, the shielding shell covers the periphery of the first injection molding part and covers the inside of the second injection molding part, the second end of the circuit board is located outside the shielding shell, and the width of the second end of the circuit board is not smaller than that of the shielding shell.

Furthermore, the connector assembly further comprises a shielding shell, the shielding shell covers the periphery of the first injection molding piece and covers the inside of the second injection molding piece, a filling space is formed by the shielding shell and the first injection molding piece in a surrounding mode, and a part of the second injection molding piece is filled in the filling space.

Further, the first end and the second end of the circuit board are two ends oppositely arranged along the plugging direction, the width of the second end of the circuit board is larger than the maximum width of the electric connector, and the cable conductive parts are arranged in parallel at the second end along the width direction of the circuit board to form a row.

In order to realize similar purposes, the utility model also adopts another technical scheme that: a connector assembly for mating with a mating component, comprising: an electrical connector having a plurality of terminals, each of the terminals having a conductive portion and a contact portion for contacting the mating member; the circuit board is provided with a plurality of terminal conductive parts at a first end, a plurality of cable conductive parts at a second end, each terminal conductive part is electrically connected with the corresponding conductive part, each cable conductive part is electrically connected with the corresponding cable, the circuit board is provided with a first surface and a second surface which are oppositely arranged in the thickness direction, the first surface is used for mounting at least one thermosensitive element, and the second surface is an operation surface for welding the cable conductive parts and the cables; the first injection molding part is provided with a main body part, a clearance part and an extension part extending from the main body part to the second end of the circuit board, wherein the plurality of terminal conductive parts of the circuit board and the conductive parts of the plurality of terminals are fixed in the main body part, the extension part covers one part of the first surface, the clearance part exposes one part of the second surface, the clearance part provides a yielding operation space for welding the cable conductive part and the cable, and the second end of the circuit board is positioned outside the first injection molding part; and the second injection molding piece is coated outside the electric connector, the circuit board and the first injection molding piece.

Furthermore, the extending part is used for cladding and fixing the thermosensitive element, the extending part wraps one part of the circuit board in the thickness direction of the circuit board, and the other part of the circuit board is exposed from the space avoiding part in the thickness direction of the circuit board.

Further, along the thickness direction of the circuit board, the mounting position for mounting the thermosensitive element in the first surface is completely staggered from the projection of the plurality of cable conductive parts.

Furthermore, the connector assembly further comprises a shielding shell, the shielding shell covers the periphery of the first injection molding part and covers the inside of the second injection molding part, and the projections of the cable conductive parts and the shielding shell in the thickness direction of the circuit board are completely staggered.

Further, the plurality of cable conductive parts comprise at least one first conductive part and at least one second conductive part, the width of the first conductive part is larger than that of the second conductive part, the first conductive part is used for being welded with a cable which transmits a power signal or a ground signal, and the second conductive part is used for being welded with a cable which transmits a non-power signal and a non-ground signal; wherein the second conductive portion is closer to a mounting position for mounting the thermosensitive element in the first surface than the first conductive portion.

Furthermore, a plurality of notches are concavely arranged from the edge of one side of the second end, each notch is used for inserting the corresponding cable along the concave direction of the notch, and the cable conducting part comprises a first conducting layer attached to the inner peripheral wall of the notch and a second conducting layer extending out of the notch from the first conducting layer to the second surface of the circuit board; the two sides of the second end protrude outwards in the width direction of the second end so as to form a step part on each of the two sides of the circuit board, the first injection molding part is limited on the step part towards the direction of the second end, and the extension length of the second end along the concave direction is approximately the same as the extension length of the cable conductive part along the concave direction.

Compared with the prior art, the connector assembly provided by the utility model has the following beneficial effects:

compared with the mode that the fixation between the conducting part and the terminal conducting part and the coating insulation of the electric connector and the circuit board are simultaneously realized only by one insulating inner die, the connector assembly comprises a first injection molding part and a second injection molding part, the size of the first injection molding part is small, so that the glue injection pressure is controllable, the molding material of the first injection molding part can be better filled around the conducting parts of a plurality of terminals and the conducting parts of the terminals of the circuit board by glue injection, and the second injection molding part with large size is used for insulating and isolating a signal transmission path inside the connector assembly from the outside; meanwhile, the second end of the circuit board is located outside the first injection molding part, so that the size of the first injection molding part is further reduced, the molding material of the first injection molding part is filled around the conducting part of the terminal, the electric connection between the circuit board and the terminal is ensured, and the influence on signal transmission caused by poor contact is avoided. Furthermore, the width of the second end of the circuit board is larger than the maximum width of the first end of the circuit board, so that more welding spaces can be provided for cables, and the risk of short circuit during cable welding is reduced. Furthermore, the first surface of circuit board is used for installing temperature sensing element, the second surface is as the welding lead the portion of connecing with the operating surface of cable conductive part can reduce the welding heat to temperature sensing element's influence, just keep away the vacancy and provide the operating space of stepping down, welding degree of difficulty when can reducing the welding cable.

[ description of the drawings ]

FIG. 1 is an exploded perspective view of a connector assembly and cable provided by an embodiment of the present invention;

FIG. 2 is a perspective view of a connector assembly and cable after connection is complete, according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of a connector assembly and cable after completion of connection provided by an embodiment of the present invention;

fig. 4 is a plan view of a circuit board provided by an embodiment of the present invention, viewed from the thickness direction thereof;

FIG. 5 is a plan view of the connector assembly with the first overmold, the shield shell, the second overmold, and the overmold concealed and looking toward the second surface of the circuit board provided by an embodiment of the present invention;

FIG. 6 is a plan view of the connector assembly provided by the embodiment of the present invention with the shield shell, second overmold and overmold concealed and viewed toward a second surface of the circuit board;

FIG. 7 is a plan view of the connector assembly with the shield can, second overmold and overmold concealed and as viewed toward the first surface of the circuit board according to an embodiment of the present invention;

FIG. 8 is a side view of the connector assembly provided by an embodiment of the present invention with the shield shell, second overmold and outer cover hidden;

fig. 9 is a plan view of the connector assembly of the present invention with the second overmold and the outer cover concealed and viewed toward the second surface of the circuit board.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the utility model, reference should be made to the drawings and detailed description that follow.

Referring to fig. 1 to 3, the present invention provides a connector assembly for mating with a mating component (not shown, the same applies hereinafter) in a mating direction, the connector assembly comprising an electrical connector 1, a circuit board 2, a first injection-molded part 3 and a second injection-molded part 5. The electric connector 1 is fixed with the circuit board 2, the first injection molding part 3 coats one part of the electric connector 1 and one part of the circuit board 2, and the second injection molding part 5 coats the electric connector 1, the circuit board 2 and the outer part of the first injection molding part 3. Further, in this embodiment, the connector assembly further includes a shielding shell 4, and the shielding shell 4 is wrapped outside the first injection-molded part 3 and is wrapped by the second injection-molded part 5.

The connector assembly is used for connecting with one end of a transmission line, and the other end of the transmission line can also be connected with another connector assembly, another electric connector 1 or another circuit board 2, and the like, which is not limited herein. The transmission line comprises a plurality of cables 8, each cable 8 having a solder head 81 connected to the circuit board 2. In this embodiment, the plurality of cables 8 of the transmission line includes a first cable 8a, a second cable 8b and a third cable 8c, the first cable 8a is used for transmitting power signals, the second cable 8b is used for transmitting ground signals, the third cable 8c is used for transmitting other signals which are not power signals and not ground signals, and in this embodiment, the first cable 8a and the second cable 8b have larger cross sections than the third cable 8c, which is beneficial for transmitting large current. Of course, in other embodiments, each cable 8 in the transmission line may also be used for transmitting other signals, and is not limited herein. Further, the connector assembly of this embodiment further includes an outer cover 6, the outer cover 6 further covers the second injection molding 5 and the end of the transmission line, and a molding material of the outer cover 6 may be selected according to actual needs, such as an insulating material or a metal material.

Referring to fig. 1 and fig. 3, the electrical connector 1 includes a plurality of terminals 11, an insulating body 12 fixing the plurality of terminals 11, and a metal shell 13 covering the insulating body 12. The electrical connector 1 is mated with the mating component, and each of the terminals 11 has a contact portion 111 for contacting with the mating component and a conductive portion 112 electrically connected with the circuit board 2. The electrical connector 1 may be any Type of connector, such as a Type-C connector, a USB2.0 connector or a USB3.0 connector, etc.

Referring to fig. 1 and 4, the first end 21 of the circuit board 2 is provided with a plurality of terminal conductive portions 211, the second end 22 of the circuit board 2 is provided with a plurality of cable conductive portions 221, each of the terminal conductive portions 211 is electrically connected to the corresponding conductive portion 112 of the terminal 11, and each of the cable conductive portions 221 is used for electrically connecting to the corresponding cable 8.

Referring to fig. 4, the width of the second end 22 of the circuit board 2 is greater than the maximum width of the first end 21 of the circuit board 2, and the second end 22 of the circuit board 2 is located outside the first injection-molded part 3. Specifically, the first end 21 has two widths, i.e., a first width W1 and a second width W2, the second width W2 is the maximum width of the first end 21, and the width of the second end 22 is a third width W3, so that W3> W2. So, the width of the second end 22 of the circuit board 2 is large, can provide a large welding space for the cable 8, and the cable 8 is convenient to operate and the risk of short circuit between the welding positions of the cable 8 is reduced. It should be noted that, in this embodiment, the second width W2 of the first end 21 is greater than the first width W1, so that another conductive part can be added to the first end 21 to connect the solder feet of other components of the electrical connector 1, for example, a conductive part is added to the position of the second width W2 of the first end 21 to be soldered to the solder feet of the grounding lock of the electrical connector 1; of course, in other embodiments, the width of the first end 21 may be only one or more than two, as long as the width of the second end 22 is greater than the maximum width of the first end 21, and is not limited herein. In this embodiment, the first end 21 and the second end 22 of the circuit board 2 are two ends oppositely disposed along the plugging direction, the width of the second end 22 of the circuit board 2 is greater than the maximum width of the electrical connector 1 (taking the fourth width W4 as the maximum width of the electrical connector 1), and the plurality of cable conductive parts 221 are arranged in parallel in a row at the second end 22 along the width direction of the circuit board 2. Compared with the first end 21 and the second end 22 which are two ends of the circuit board 2 that are not opposite to each other and are formed by bending and extending, the circuit board 2 of the embodiment extends along the plugging direction, so that the size of the circuit board 2 can be reduced, and the volume of the whole connector assembly is reduced; and the width of the second end 22 is larger than the maximum width of the electrical connector 1, so that a larger space is provided for the cable 8, and thicker or more cables 8 can be welded conveniently; simultaneously, the plurality of cables 8 are arranged in parallel to simultaneously perform a plurality of welding operations of the cables 8 at one time, the welding head parts 81 of the plurality of cables 8 are not required to be arranged in a staggered manner and welded in a plurality of times on a narrow welding area, and the manufacturing process of the connector assembly can be simplified.

Referring to fig. 1, 3 to 8, the circuit board 2 has a first surface 24 and a second surface 25 opposite to each other in a thickness direction thereof, the first surface 24 is used for mounting at least one heat sensitive element 7, and the second surface 25 is an operation surface for soldering the cable conductive part 221 and the cable 8. That is, when the cable conductive part 221 and the welding head part 81 of the cable 8 are welded, the welding operation is performed on the second surface 25. Compared with the case that the installation surface of the thermosensitive element 7 and the operation surface are the same surface, the present embodiment can reduce the influence of the welding heat emitted when the cable 8 is welded on the thermosensitive element 7, and prevent the welding heat from damaging the thermosensitive element 7. Further, the mounting position for mounting the thermosensitive element 7 in the first surface 24 is completely shifted from the projection of the plurality of cable conductive parts 221 in the thickness direction of the circuit board 2. Therefore, compared with the projection overlapping of the installation position and the cable conductive part 221, the present embodiment can further extend the distance between the installation position and the cable conductive part 221, reduce the transmission of the soldering heat to the heat-sensitive element 7 along the thickness direction of the circuit board 2, and further avoid the damage of the heat-sensitive element 7.

Referring to fig. 1 and 3 to 8, the cable conductive parts 221 of the circuit board 2 include two first conductive parts 211a and one second conductive part 211b, a width of the first conductive part 211a is greater than a width of the second conductive part 211b, the two first conductive parts 211a are respectively used for being soldered to the first cable 8a and the second cable 8b, and the second conductive part 211b is used for being soldered to the third cable 8 c; wherein the second conductive portion 211b is closer to a mounting position for mounting the thermosensitive element 7 in the first surface 24 than the first conductive portion 211 a. Thus, the first conductive part 211a with a larger width can be welded with a thicker cable 8, which is beneficial for the connector assembly to transmit large current; the first conductive part 211a with a larger width is required to adhere more solder and dissipate more heat, so the second conductive part 211b with a smaller width of the embodiment is closer to the heat sensitive element 7, which can relatively increase the distance between the heat sensitive element 7 and the first conductive part 211a, and reduce the influence of the soldering heat on the heat sensitive element 7. In other embodiments, the number of the first conductive portions 211a and the second conductive portions 211b may be designed according to actual needs, and is not limited to only two first conductive portions 211a and one second conductive portion 211 b.

Referring to fig. 1, 3, 4 and 8, in the circuit board 2, a plurality of notches 23 are recessed from an edge of one side of the second end 22, each notch 23 is used for inserting the corresponding cable 8 along a recessed direction of the notch 23, and the cable conductive portion 221 includes a first conductive layer 2211 attached to an inner peripheral wall of the notch 23, and a second conductive layer 2212 extending from the first conductive layer 2211 to the second surface 25 of the circuit board 2 and extending out of the notch 23. By arranging the notch 23, the welding head part 81 of the cable 8 can be abducted, and the overall thickness of the circuit board 2 after the cable 8 is welded is reduced; and since the second surface 25 is a soldering operation surface, the second conductive layer 2212 disposed on the second surface 25 can facilitate quick adhesion of solder to quickly fix the cable 8 preliminarily, and the first conductive layer 2211 can guide the solder to flow into the inner peripheral wall of the gap 23 to fix the cable 8 better. Further, in this embodiment, the notch 23 penetrates through the first surface 24 and the second surface 25 along the thickness direction of the circuit board 2, and the cable conductive portion 221 further includes a third conductive layer 2213 extending from the first conductive layer 2211 to the notch 23 to the first surface 24 of the circuit board 2, so that solder can flow from the second surface 25 into the inner peripheral wall of the notch 23, and further flow to attach to the third conductive layer 2213, thereby facilitating the contact between the cable 8 and the circuit board 2 in more areas and increasing the connection stability between the cable 8 and the circuit board 2. Furthermore, two sides of the second end 22 protrude outward in the width direction thereof to form a step portion 26 on two sides of the circuit board 2, the first injection-molded part 3 is limited at the step portion 26 in the direction of the second end 22, so as to prevent the first injection-molded part 3 from loosening in the direction of the second end 22, and the extension length of the second end 22 in the recessed direction (i.e., the first length L1) is substantially the same as the extension length of the cable conductive part 221 in the recessed direction (i.e., the second length L2), so that the area of the second end 22 can be reduced as much as possible on the premise that the second end 22 is widened, the overall size of the circuit board 2 is reduced, the area of the circuit board 2 is fully utilized, and the volume of the connector assembly is reduced. It should be noted that the first length and the second length are only required to be approximately the same, and there may be a certain length difference, so that the second end 22 is shortened as much as possible in the extending length to reduce the length of the circuit board 2, for example, the second length is not less than 80% of the first length.

Referring to fig. 3, 6 to 8, the first injection-molded part 3 covers and fixes the plurality of terminal conductive parts 211 of the circuit board 2 and the plurality of conductive parts 112 of the terminals 11, and the second injection-molded part 5 covers the exterior of the electrical connector 1, the circuit board 2 and the first injection-molded part 3. Compared with the mode that the fixation between the conducting part 112 and the terminal conducting part 211 and the cladding insulation of the electric connector 1 and the circuit board 2 are simultaneously realized by only one insulating inner die, the connector assembly comprises the first injection molding part 3 and the second injection molding part 5, and due to the fact that the size of the first injection molding part 3 is small, the injection pressure of the punching glue is controllable, the molding material of the first injection molding part 3 can be better punched and filled around the conducting parts 112 of the plurality of terminal conducting parts 211 and the plurality of terminals 11 of the circuit board 2, the electric connection between the circuit board 2 and the terminals 11 is ensured, and the influence of poor contact on signal transmission is avoided. Specifically, the first injection molding part 3 has a main body portion 31, an escape portion 32 and certainly the main body portion 31 orientation an extension 33 that the second end 22 of circuit board 2 extends, wherein, circuit board 2 is a plurality of terminal conductive portion 211 and a plurality of terminal 11 lead portion 112 and all be fixed in the inside of main body portion 31, extension 33 covers a part of first surface 24, escape portion 32 exposes a part of second surface 25, escape portion 32 is for the welding cable conductive portion 221 with cable 8 provides the operating space of stepping down. Therefore, the first injection molding part 3 is provided with the recess 32 to expose the second surface 25, the extension 33 covers the first surface 24, the first surface 24 and the second surface 25 of the circuit board 2 can be distinguished conveniently through the asymmetrically arranged recess 32 and the extension 33, the welding operation of the cable 8 is accurately carried out from the second surface 25 by accurately using the second surface 25 as an operation surface for welding in the welding process of the cable 8, and the welding process of the cable 8 is prevented from influencing the thermosensitive element 7; meanwhile, the space avoiding part 32 provides a space for avoiding operation, which is beneficial to the welding operation of the cable 8 performed in the limited space of the circuit board 2, and reduces the operation difficulty of welding the cable 8. The second end 22 of the circuit board 2 is located outside the first injection-molded part 3, which further reduces the volume of the first injection-molded part 3 and facilitates the filling of the molding material of the first injection-molded part 3 around the conductive part 112 of the terminal 11. Meanwhile, if the first injection molding part 3 coats the second end 22 together, the cable 8 needs to be welded and then the first injection molding part 3 needs to be injection molded, if the injection molding is poor, a defective product after the first injection molding part 3 is formed needs to be abandoned together with the cable 8, and the second end 22 of the embodiment is located outside the first injection molding part 3, so that the welding of the cable 8 and the injection molding of the first injection molding part 3 are not interfered with each other, and therefore, the molding process of the first injection molding part 3 is favorably advanced, the injection molding of the first injection molding part 3 is completed before the cable 8 is welded, so that the defective product does not need to be abandoned together with the cable 8 when the first injection molding part 3 is poor in forming, the production material is saved, and the production cost is reduced. Further, the extending portion 33 is further configured to wrap and fix the thermal element 7, the extending portion 33 wraps a portion of the circuit board 2 in the thickness direction of the circuit board 2, and the space-avoiding portion 32 exposes another portion of the circuit board 2 in the thickness direction of the circuit board 2, so as to better protect the thermal element 7, and ensure that the space-avoiding portion 32 can provide a sufficient space for avoiding operation, increase the contact area between the extending portion 33 and the circuit board 2, and avoid the extending portion 33 from being broken from the main body portion 31 to expose the thermal element 7.

Referring to fig. 3 to 4, the shielding shell 4 of the connector assembly is wrapped around the first injection-molded part 3 and wrapped inside the second injection-molded part 5, the second end 22 of the circuit board 2 is located outside the shielding shell 4, and the width of the second end 22 of the circuit board 2 is not smaller than the width of the shielding shell 4. The shielding shell 4 can reduce the signal interference suffered by the lead-in part 112 and the cable 8, which is beneficial to signal shielding; and the second end 22 is located outside the shielding shell 4, the size of the shielding shell 4 can be relatively reduced, and the problem that the whole volume of the connector assembly is overlarge because the shielding shell 4 is coated on the second end 22 and the cable 8 and then is coated on the second injection molding part 5 is avoided. Simultaneously, circuit board 2 the width of second end 22 is not less than the width of shield shell 4, second end 22 can block shield shell 4 toward welding head portion 81 slides, can avoid shield shell 4 pine takes off to slide to cable 8 welding head portion 81 avoids shield shell 4 with cause a plurality ofly behind the welding head portion 81 contact short circuit between the cable 8. In this embodiment, the shielding shell 4 is also in contact with the metal shell 13 of the electrical connector 1.

Further, the shielding shell 4 and the first injection-molded part 3 together enclose a filling space (not shown, the same applies hereinafter), and a part of the second injection-molded part 5 is filled in the filling space. This increases the stability of the relative position between the second injection-molded part 5, the shielding shell 4 and the first injection-molded part 3, reduces the relative displacement between the second injection-molded part 5, the shielding shell 4 and the first injection-molded part 3, in particular increases the difficulty of releasing the second injection-molded part 5 in the direction of the second end 22, and reduces the risk of exposing the circuit board 2 to the outside. It should be noted that, in the present embodiment, the filling space includes the space of the void-avoiding portion 32, but in other embodiments, the first injection-molded part 3 may not have the void-avoiding portion 32, for example, the shielding shell 4 extends beyond the end surface of the first injection-molded part 3 in the plugging direction, so that the shielding shell 4 and the end surface of the first injection-molded part 3 enclose the filling space; as another example, the inner peripheral wall of the shield shell 4 and the outer peripheral wall of the first injection-molded part 3 have a certain clearance therebetween to serve as the filling space.

Referring to fig. 9, projections of the shielding case 4 and the plurality of cable conductive parts 221 in the thickness direction of the circuit board 2 are completely staggered. Thus, the cable conductive part 221 is prevented from overlapping the thickness of the cable 8 and the solder, so that the shielding shell 4 is short-circuited with the cable 8, and the signal transmission is influenced. The second injection molding 5 further covers the exterior of the electrical connector 1, the circuit board 2 and the first injection molding 3 to be integrally and fixedly covered, so that the signal transmission path inside the connector assembly is insulated and isolated from the outside, in this embodiment, the second injection molding 5 further covers and fixes the welding head parts 81 of the plurality of cables 8, in other embodiments, the second end 22 of the circuit board 2 and the welding head parts 81 of the cables 8 may be covered and fixed by other additional injection molding parts, which is not limited herein.

The connector assembly provided by the utility model can be manufactured by the following manufacturing process:

step a, providing one electrical connector 1, wherein the electrical connector 1 has a plurality of terminals 11, and each terminal 11 has a conductive part 112;

step b, providing a circuit board 2, wherein a first end 21 of the circuit board 2 is provided with a plurality of terminal conducting parts 211, a second end 22 of the circuit board 2 is provided with a plurality of cable conducting parts 221, the width of the second end 22 is larger than that of the first end 21, and at least one thermosensitive element 7 is installed on a first surface 24 of the circuit board 2;

step c, mounting and fixing the circuit board 2 and the electrical connector 1, wherein the conductive portion 112 of each terminal 11 contacts with the corresponding terminal conductive portion 211;

d, injection molding a first injection molding part 3, which has a main body part 31, an escape part 32 and an extension part 33 extending from the main body part 31 toward the second end 22 of the circuit board 2, wherein the second end 22 is located outside the first injection molding part 3; wherein the plurality of terminal conductive portions 211 of the circuit board 2 and the conductive portions 112 of the plurality of terminals 11 are fixed inside the main body portion 31, the extending portion 33 covers a portion of the first surface 24, the clearance portion 32 exposes a portion of the second surface 25 of the circuit board 2, and the second surface 25 and the first surface 24 are disposed opposite to each other in the thickness direction of the circuit board 2;

a step e of performing a welding operation of the cable 8 and the cable conductive part 221 on the second surface 25;

f, sleeving a shielding shell 4 outside the electric connector 1 and the first injection molding part 3;

step g, injection molding a second injection molding part 5 outside the electric connector 1, the circuit board 2, the first injection molding part 3 and the welding head part 81 of the cable 8;

and h, forming an outer coating body 6 outside the second injection molding piece 5.

Through the steps, except that the first injection molding part 3 with smaller volume can be better filled with glue around the conducting part 112 of the circuit board 2 and a plurality of terminal conducting parts 211 and a plurality of terminals 11, and the second injection molding part 5 with larger volume can insulate and isolate the signal transmission path inside the connector component from the outside, the forming process of the first injection molding part 3 is positioned before the welding process of the cable 8, even if the first injection molding part 3 is formed, defective products are generated due to poor injection molding, the defective products do not need to be carried, the cable 8 is discarded together, and therefore the waste of the cable 8 caused by the poor forming of the first injection molding part 3 is reduced. In the above process, the heat-sensitive element 7 is mounted on the first surface 24 by welding the cable 8 and the cable conductive part 221 on the second surface 25, so that the heat of welding can be prevented from damaging the heat-sensitive element 7.

In summary, the connector assembly provided by the utility model has the following beneficial effects:

1. the connector assembly comprises a first injection molding part 3 and a second injection molding part 5, the size of the first injection molding part 3 is small, so that the glue injection pressure can be controlled, molding materials of the first injection molding part 3 can be better filled around the conductive parts 211 of the plurality of terminals and the conductive parts 112 of the plurality of terminals 11 of the circuit board 2 by glue, and a signal transmission path inside the connector assembly is isolated from the outside in an insulating way through the second injection molding part 5 with large size; meanwhile, the second end 22 of the circuit board 2 is located outside the first injection-molded part 3, so that the volume of the first injection-molded part 3 is further reduced, the molding material of the first injection-molded part 3 can be filled around the conducting part 112 of the terminal 11, the electrical connection between the circuit board 2 and the terminal 11 is ensured, and the influence of poor contact on signal transmission is avoided.

2. The width of the second end 22 of the circuit board 2 is larger than the maximum width of the first end 21 of the circuit board 2, so that more welding space can be provided for the cable 8, and the risk of short circuit during welding of the cable 8 is reduced.

3. The first surface 24 of the circuit board 2 is used for installing the thermal element 7, the second surface 25 is used as an operation surface for welding the lead-in part 112 and the cable conductive part 221, the influence of welding heat on the thermal element 7 can be reduced, the avoidance part 32 provides an abdicating operation space, and the welding difficulty in welding the cable 8 can be reduced.

4. The shielding shell 4 can reduce the signal interference suffered by the lead-in part 112 and the cable 8, which is beneficial to signal shielding; and the second end 22 is located outside the shielding shell 4, the size of the shielding shell 4 can be relatively reduced, and the overall size of the connector assembly is prevented from being too large.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. A connector assembly for mating with a mating member in a mating direction, comprising:

an electrical connector having a plurality of terminals, each of the terminals having a conductive portion and a contact portion for contacting the mating member;

a circuit board, a first end of which is provided with a plurality of terminal conductive parts, a second end of which is provided with a plurality of cable conductive parts, each terminal conductive part is electrically connected with the corresponding conductive part, each cable conductive part is used for electrically connecting with the corresponding cable, and the width of the second end of the circuit board is larger than the maximum width of the first end of the circuit board;

the first injection molding piece is used for coating and fixing a plurality of terminal conducting parts of the circuit board and the conducting parts of the terminals, and the second end of the circuit board is positioned outside the first injection molding piece;

and the second injection molding piece is coated outside the electric connector, the circuit board and the first injection molding piece.

2. The connector assembly of claim 1, further comprising a shield shell that surrounds the outer perimeter of the first overmold and is surrounded by the inner portion of the second overmold, wherein the second end of the circuit board is located outside the shield shell, and wherein the second end of the circuit board has a width that is no less than a width of the shield shell.

3. The connector assembly of claim 1, further comprising a shielding shell surrounding the first overmold and the second overmold, the shielding shell and the first overmold together defining a fill space, a portion of the second overmold being filled in the fill space.

4. The connector assembly of claim 1, wherein the first end and the second end of the circuit board are opposite ends in the plugging direction, the second end of the circuit board has a width greater than a maximum width of the electrical connector, and the plurality of cable conductive portions are arranged in a row in the width direction of the circuit board at the second end.

5. A connector assembly for mating with a mating component, comprising:

the circuit board is provided with a plurality of terminal conductive parts at a first end, a plurality of cable conductive parts at a second end, each terminal conductive part is electrically connected with the corresponding conductive part, each cable conductive part is electrically connected with the corresponding cable, the circuit board is provided with a first surface and a second surface which are oppositely arranged in the thickness direction, the first surface is used for mounting at least one thermosensitive element, and the second surface is an operation surface for welding the cable conductive parts and the cables;

the first injection molding part is provided with a main body part, a clearance part and an extension part extending from the main body part to the second end of the circuit board, wherein the plurality of terminal conductive parts of the circuit board and the conductive parts of the plurality of terminals are fixed in the main body part, the extension part covers one part of the first surface, the clearance part exposes one part of the second surface, the clearance part provides a yielding operation space for welding the cable conductive part and the cable, and the second end of the circuit board is positioned outside the first injection molding part;

6. The connector assembly of claim 5, wherein the extension portion is further configured to cover and fix the heat sensitive element, the extension portion covers a portion of the circuit board in a thickness direction of the circuit board, and the clearance portion exposes another portion of the circuit board in the thickness direction of the circuit board.

7. The connector assembly according to claim 5, wherein a mounting position for mounting the heat sensitive element in the first surface is completely staggered from a projection of the plurality of cable conductive parts in a thickness direction of the circuit board.

8. The connector assembly of claim 5, further comprising a shield case that covers an outer periphery of the first overmold and is covered inside the second overmold, wherein projections of the plurality of cable conductive portions and the shield case in a thickness direction of the circuit board are completely staggered.

9. The connector assembly of claim 5, wherein said plurality of cable conductive portions includes at least a first conductive portion and at least a second conductive portion, said first conductive portion having a width greater than a width of said second conductive portion, said first conductive portion being adapted to be soldered to a cable transmitting a power signal or a ground signal, said second conductive portion being adapted to be soldered to a cable transmitting a non-power signal and a non-ground signal; wherein the second conductive portion is closer to a mounting position for mounting the thermosensitive element in the first surface than the first conductive portion.

10. The connector assembly of claim 5, wherein a plurality of notches are recessed from an edge of one side of the second end, each notch is used for inserting the corresponding cable along a recessed direction of the notch, and the cable conductive portion includes a first conductive layer attached to an inner peripheral wall of the notch, and a second conductive layer extending from the first conductive layer to the second surface of the circuit board and extending out of the notch;

the two sides of the second end protrude outwards in the width direction of the second end so as to form a step part on each of the two sides of the circuit board, the first injection molding part is limited on the step part towards the direction of the second end, and the extension length of the second end along the concave direction is approximately the same as the extension length of the cable conductive part along the concave direction.