CN111509451B - Cable connection assembly - Google Patents
Cable connection assembly Download PDFInfo
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- CN111509451B CN111509451B CN202010317675.4A CN202010317675A CN111509451B CN 111509451 B CN111509451 B CN 111509451B CN 202010317675 A CN202010317675 A CN 202010317675A CN 111509451 B CN111509451 B CN 111509451B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention provides a cable connecting component which can solve the problem that the existing cable holding piece is connected with an insulating substrate only by adhesion force and is easy to fall off from the insulating substrate when being subjected to larger external force, so that the connection reliability is poor. A cable connection assembly comprising: a cable; a connector; the connector includes an insulating substrate; the contact assembly is arranged on the insulating substrate and is connected with the cable core in the cable; the injection molding fixing part is used for embedding the cable so as to relatively fix the cable and the insulating substrate; the insulating substrate is provided with a molding surface for molding the injection molding fixing part and an anti-drop molding cavity communicated with the molding surface; the anti-drop molding cavity comprises a flow passage extending from the molding surface to the inside of the insulating substrate and an anti-drop pouring cavity communicated with the flow passage; the anti-drop casting cavity is provided with an anti-drop cavity wall, and the anti-drop cavity wall and the part formed in the anti-drop casting cavity in the injection molding and fixing part are in blocking fit in the thickness direction of the insulating substrate so as to prevent the injection molding and fixing part from dropping off from the insulating substrate.
Description
Technical Field
The invention relates to a cable connection assembly.
Background
The conventional cable connection assembly includes an insulating housing, a plurality of terminal modules are inserted into the insulating housing, and the terminal modules are similar to the injection molding module disclosed in patent document No. CN207559189U and No. 2018.06.29, and mainly include an insulating substrate, on which a plurality of sets of contact assemblies are disposed, and each contact assembly is divided into a signal contact and a ground contact, and is used for being connected with a cable to form the cable connection assembly. The upper surface of the insulating substrate is provided with a concave clamping groove, the clamping groove is formed by inwards extending the side edge of the insulating substrate, and the side wall of the insulating substrate penetrates through the side wall of the insulating substrate to enable the cable core to be placed in the corresponding clamping groove, so that the cable core is aligned with the signal contact element.
Subsequently, in the using process, technicians find that the cable core is placed in the corresponding clamping groove, and the clamping groove can not completely position the cable core, so that the technicians can arrange the cable fixing piece on the insulating substrate to avoid the influence on the welding reliability of the cable core and the signal contact piece caused by the relative movement of the cable core and the insulating substrate. The cable holding member commonly used in the present stage is generally a pressing plate detachably connected to the insulating substrate, or an injection molding member placed and cast on the insulating substrate by injection molding, and the latter is widely used because of high processing efficiency and good holding effect. Specifically, when the insulating substrate is used, a technician firstly arranges the cable core in the clamping groove, welds the cable core and the signal contact element, injects a fluid injection molding material into the clamping groove after the welding is completed, and the injection molding material is cured to form an injection molding fixing part which can fix the cable core on the insulating substrate so as to prevent the cable core and the insulating substrate from moving relatively to influence the reliability of the welding of the cable core and the signal contact element.
The outer surface of the injection molding fixing part formed by curing the injection molding material is bonded with the groove wall and the groove bottom of the clamping groove, and simultaneously, each cable core passing through the cable fixing part is tightly held, so that the cable cores and the insulating substrate are relatively fixed. However, in practical use, it is found that when the cable core is subjected to an external force far away from the insulating substrate from the notch position of the clamping groove, the connection relationship between the injection molding fixing part and the clamping groove can be damaged, the cable core can drive the cable fixing part to be separated from the insulating substrate, and the cable core and the signal contact part can be desoldered in serious cases, so that the cable connecting assembly fails.
Disclosure of Invention
The invention aims to provide a cable connecting component which can solve the problem that the existing cable holding piece is connected with an insulating substrate only by adhesion force and is easy to fall off from the insulating substrate when a large external force is applied, so that the connection reliability is poor.
In order to achieve the purpose, the cable connecting assembly adopts the following technical scheme:
a cable connection assembly comprising:
a cable;
a connector connected to at least one end of the cable, the connector of the at least one end including:
an insulating substrate;
the contact assembly is arranged on the insulating substrate and is connected with the cable core in the cable;
the injection molding fixing part is used for embedding the cable so as to relatively fix the cable and the insulating substrate;
the insulating substrate is provided with a molding surface for molding the injection molding fixing part and an anti-drop molding cavity communicated with the molding surface; the anti-drop molding cavity comprises a flow passage extending from the molding surface to the inside of the insulating substrate and an anti-drop pouring cavity communicated with the flow passage;
the injection molding fixing part is integrally formed on the molding surface and in the anti-drop molding cavity, the anti-drop casting cavity is provided with an anti-drop cavity wall, and the anti-drop cavity wall and the part of the injection molding fixing part formed in the anti-drop casting cavity are in blocking fit in the thickness direction of the insulating substrate so as to prevent the injection molding fixing part from dropping from the insulating substrate.
The beneficial effects are that: the insulating substrate is provided with a molding surface and an anti-drop molding cavity, the fluid material is cured and molded into an injection molding and fixing part in the molding surface and the anti-drop molding cavity, and the molded part in the anti-drop casting cavity in the injection molding and fixing part can be in blocking fit with the anti-drop cavity wall of the anti-drop casting cavity in the thickness direction of the insulating substrate, so that even if the cable is subjected to outward pulling force vertical to the side surface of the insulating substrate, the whole injection molding and fixing part can be stably fixed on the insulating substrate by the blocking fit with the insulating substrate, and the stability of connection between the cable and the contact assembly is ensured; meanwhile, the injection molding fixing piece is solidified in the molding surface and the anti-falling molding cavity, one part fixes the cable, the other part can realize anti-falling, and the two parts are integrally molded, so that the integral strength of the injection molding fixing piece is improved, and the reliability and the stability of the cable connecting assembly are further ensured.
Further, the contact assemblies are arranged in rows, the cable cores are arranged in rows and in one-to-one correspondence with the contact assemblies, more than two anti-falling forming cavities are arranged, and the anti-falling forming cavities are arranged at intervals in the arrangement direction of the cable cores.
The beneficial effects are that: the number of the anti-drop forming cavities is increased, the number of the stop matching parts of the injection molding fixing piece and the insulating substrate is directly increased, the reliability of stop matching is further improved, meanwhile, the connecting area of the injection molding fixing piece and the insulating substrate after being formed is increased, and the connecting strength of the injection molding fixing piece and the insulating substrate is ensured.
Furthermore, the two sides of each cable core in the arrangement direction on the insulating substrate are provided with the anti-drop forming cavities.
The beneficial effects are that: the anti-drop forming cavities are arranged on the two sides of each cable core, and after the fluid material is solidified in the anti-drop forming cavities, the fluid material can be bonded and in blocking fit with the insulating substrate on the two sides of each cable core, so that each cable core can be limited by the same anti-drop function, the weak anti-drop effect of a certain cable core on the insulating substrate is avoided, and the overall strength and reliability of the cable connecting assembly are improved.
Furthermore, a communicating groove is formed in the insulating substrate, the communicating groove extends along the cable core arrangement direction and is communicated with the anti-falling forming cavities, and the bottom of the communicating groove forms the forming surface.
The beneficial effects are that: the connecting groove is arranged to communicate the anti-drop forming cavity, the injection molding fixing part becomes an integral structural part after the fluid material is solidified and formed, the processing efficiency is high, the strength of the injection molding fixing part is improved, and the reliability of connection between the cable and the contact assembly is guaranteed.
Furthermore, the insulating substrate is provided with a placing groove matched with the cable core in shape, and the extending direction of the communicating groove is the same as the arrangement direction of the placing grooves and communicated with the placing grooves.
The beneficial effects are that: the placing groove is formed in the insulating substrate, so that the contact area of the cable core and the insulating substrate is increased, and the cable core is positioned before injection molding more easily.
Further, the side surface of the injection molding holding part is flush with the side surface of the insulating substrate in the thickness direction.
The beneficial effects are that: the material amount of the fluid material poured into the molding surface and the anti-drop molding cavity is maximized, so that the injection molding fixing part formed by curing is flush with the corresponding side surface of the insulating substrate, the connecting area of the injection molding fixing part and the insulating substrate is further increased, and the connecting strength of the injection molding fixing part and the insulating substrate is improved.
Furthermore, the section of the anti-drop forming cavity is T-shaped or L-shaped.
The beneficial effects are that: the section of the anti-drop forming cavity is in a T shape or an L shape, and after the fluid material is solidified and formed in the anti-drop forming cavity, a step surface in stop fit with the cavity wall is correspondingly formed, so that the reliability of stop fit is favorably ensured.
Furthermore, an anti-falling pouring cavity in the anti-falling molding cavity penetrates through the side face, opposite to the molding face, of the insulating substrate.
The beneficial effects are that: the anti-drop pouring cavity is arranged in a penetrating mode, so that the insulating substrate can be conveniently processed, the volume of the injection molding fixing piece embedded into the insulating substrate is increased, and the injection molding fixing piece and the insulating substrate are guaranteed to have sufficient contact area so as to improve the overall strength and reliability of the cable connecting assembly.
Drawings
Fig. 1 is a schematic view of a cable connection assembly according to embodiment 1 of the present invention, without showing the injection molded retainer and a portion of the cable core;
FIG. 2 is a schematic structural view of a housing of the connector of FIG. 1;
fig. 3 is a schematic structural view of a terminal module in embodiment 1 of the cable connection assembly of the present invention;
FIG. 4 is a schematic structural view of the terminal module shown in FIG. 3 without the injection-molded holding part;
fig. 5 is a schematic structural view of the front surface of the insulating substrate in embodiment 1 of the cable connection assembly of the present invention;
fig. 6 is a schematic structural view of the back surface of the insulating substrate in embodiment 1 of the cable connection assembly of the present invention;
FIG. 7 is a schematic view of the injection molded retainer of embodiment 1 of the cable connecting assembly of the present invention;
in the figure:
10-a housing; 11-a plug cavity; 20-a terminal module; 21-an insulating substrate; 211-communicating slot;
212-a flow-through channel; 213-placing groove; 214-an anti-drop casting cavity; 22-a differential pair; 23-a shielding sheet;
24-a cable core; 241-signal lines; 242-ground line; 25-injection molding holding part; 251-upper half; 252-lower half.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the cable connection assembly of the present invention are described in further detail below with reference to examples.
Example 1 of the cable connection assembly of the present invention: as shown in fig. 1, the cable connection assembly includes a cable and connectors connected to two ends of the cable, the structures of the connectors are the same, and the specific structure of the connector is now described by taking the connector at one end as an example, but in other embodiments, the two ends of the cable may also be connected to connectors with different structures, or the connector of the present invention is connected to one end of the cable, and the other end is directly connected to a device.
As shown in fig. 2 and 3, the connector includes a plurality of terminal modules 20 and a housing 10 accommodating the terminal modules 20, wherein each of the terminal modules 20 has the same structure, is inserted into the insulative housing 10 when assembled, and the terminal modules 20 are arranged in the housing 10 in a stacked manner in a thickness direction after the plurality of terminal modules 20 are inserted into the housing 10. Each terminal module 20 includes an insulating substrate 21, and a contact assembly mounted on the insulating substrate 21. The contact assembly comprises a plurality of differential pairs 22 and a shielding sheet 23 for shielding the differential pairs 22 of one pair, the cable in the cable connector comprises cable cores 24 corresponding to the number of the contact assemblies, the cable cores 24 are provided with signal wires 241 and grounding wires 242 which are respectively welded with the differential pairs 22 and the shielding members in the contact assembly.
As shown in fig. 4, 5 and 6, the insulating substrate 21 of the terminal module 20 is rectangular, and the housing 10 of the connector is also provided with a corresponding plug cavity 11 adapted to the contour of the insulating substrate 21. In the rectangular insulating board 21, the longer long side is perpendicular to the plugging direction (i.e., the front-rear direction in the drawing), and the shorter short side is parallel to the plugging direction, and locking structures are provided at both short sides (i.e., the left and right sides in the drawing) of the insulating board 21, so that the insulating board 21 mounted in place can be prevented from coming out of the insulating housing 10.
Before each terminal module 20 is inserted into the housing 10, the welding of the cable core 24 and the contact assembly needs to be completed, in order to prevent the cable core 24 welded with the contact assembly from being detached under the action of external force, an injection molding holding part 25 is further arranged on the insulating substrate 21, the injection molding holding part 25 injects a fluid material onto the insulating substrate 21 in an injection molding manner, and after the fluid material is cured, the cable core 24 and the insulating substrate 21 can be simultaneously connected, so that the cable core 24 is prevented from moving relative to the insulating substrate 21.
At the long side of the insulating base plate 21, there are set up grooves 213 extending inward in the width direction of the insulating base plate 21, and in this embodiment, there are four set up grooves 213, spaced apart along the arrangement direction of the cable cores 24, and the number is also the same as the number of the cable cores 24 connected in the terminal module 20. The placement surface surrounded by the groove wall and the groove bottom of the placement groove 213 is matched with the corresponding outer surface of the cable core 24, the cable core 24 can be stably supported in the thickness direction of the insulating substrate 21, and the cable core 24 can be embedded in the placement groove 213 after the welding with the corresponding contact member is completed.
In the longitudinal direction of the insulating substrate 21, a straight communication groove 211 is provided, and the communication groove 211 extends in the longitudinal direction to communicate the four placing grooves 213. The anti-drop forming cavities are arranged between two adjacent cable cores 24, namely between two adjacent placing grooves 213, and meanwhile, in the arrangement direction of the cable cores 24, the anti-drop forming cavities are correspondingly arranged on the front sides of the cable cores 24 at the head ends and the rear sides of the cable cores 24 at the tail ends in the cable core sequence, five anti-drop forming cavities are arranged on the insulating substrate, and each anti-drop forming cavity is used for curing and forming a fluid material in the anti-drop forming cavity.
The anti-drop molding cavity in the embodiment comprises a flow passage 212 communicated with the bottom of the communicating groove 211 and extending inwards along the thickness direction of the insulating substrate 21, and an anti-drop pouring cavity 214 communicated with the flow passage 212, wherein the connecting position of the anti-drop pouring cavity 214 and the flow passage 212 is located inside the insulating substrate 21, and the other end of the anti-drop pouring cavity 214 is communicated with one side of the side surface of the insulating substrate 21, which is opposite to the communicating groove 211 and is provided with the overlapping groove 213.
The space enclosed by the flow passage 212 and the anti-drop casting cavity 214 is a cuboid, and the width of the anti-drop casting cavity 214 in the horizontal direction is greater than that of the flow passage 212, so that a step surface is formed at the intersection of the flow passage 212 and the anti-drop casting cavity 214, and the step surface is positioned on one part of the wall of the anti-drop casting cavity 214. Because there are five anticreep die cavities at insulating substrate, the holistic cross-section of the anticreep die cavity that is located the head end of anticreep die cavity sequence and tail end is L shape, and the holistic cross-section of three anticreep die cavities in the middle of is T shape.
As shown in fig. 7, in the insulating substrate 21, the placing groove 213, the communicating groove 211 and the anti-drop molding cavity are communicated, when an operator pours a fluid material, the fluid material is cured and molded in the placing groove 213, the communicating groove 211 and the anti-drop molding cavity to form the injection-molded holding part 25, and the injection-molded holding part 25 is relatively fixed to the insulating substrate through an adhesive force on one hand and is embedded by a cable on the other hand, so that the cable core 24 is relatively fixed to the substrate. Wherein, the groove bottom of the communicating groove 211 forms a molding surface for molding the injection molding holding part 25, the upper half part 251 of the injection molding holding part 25 is formed after the fluid material is solidified therein, and the upper half part 251 is flush with the corresponding side surface of the insulating substrate 21. The fluid material is solidified in the anti-drop molding cavities to form the lower half part 252 of the injection molding holding part 25, and because each anti-drop molding cavity is arranged at intervals in the arrangement direction of the cable cores 24, the lower half part 252 of the injection molding holding part 25 comprises five branches, the cross sections of the three branches positioned in the middle are T-shaped, the cross sections of the branches positioned at the head end and the tail end are L-shaped, and the branches are connected to the upper half part 251 of the injection molding holding part 25, and each branch and the upper half part 251 of the injection molding holding part 25 are of an integrally molded structure.
Meanwhile, the intersection of the flow passage 212 and the anti-drop casting cavity 214 forms a step surface, the step surface is located at a part of the wall of the anti-drop casting cavity 214 to form the wall of the anti-drop casting cavity 214, and can be in stop fit with the lower half part 252 of the injection-molding holding part 25 in the thickness direction of the insulating substrate 21, and when the injection-molding holding part 25 is pulled by an external force, the lower half part 252 of the injection-molding holding part 25 and the step surface can prevent the injection-molding holding part 25 from falling off from the insulating substrate 21.
According to the invention, the insulating substrate is provided with a molding surface and an anti-drop molding cavity, the fluid material is cured and molded into the injection molding and fixing part in the molding surface and the anti-drop molding cavity, and the molded part in the anti-drop casting cavity in the injection molding and fixing part can be in blocking fit with the anti-drop cavity wall of the anti-drop casting cavity in the thickness direction of the insulating substrate, so that even if the cable is subjected to an outward pulling force vertical to the side surface of the insulating substrate, the whole injection molding and fixing part can be in blocking fit with the insulating substrate to fix the cable on the insulating substrate, and the stability of connection between the cable and the contact component is ensured; meanwhile, the injection molding fixing piece is solidified in the molding surface and the anti-falling molding cavity, one part fixes the cable, the other part can realize anti-falling, and the two parts are integrally molded, so that the integral strength of the injection molding fixing piece is improved, and the reliability and the stability of the cable connecting assembly are further ensured.
Of course, the cable connection assembly in the present invention is not limited to the technical solution provided in the above embodiment 1, and the solution provided in the following embodiment may also be adopted.
Embodiment 2 of the cable connection assembly of the present invention: the difference from the above embodiments is that in this embodiment, the insulating substrate is provided with the common-cable-core placing grooves corresponding to the number of the cable cores, and the communicating grooves extending along the direction of arrangement of the placing grooves to communicate the placing grooves, and only one anti-drop forming cavity is provided in the insulating substrate, and the cross section of the anti-drop forming cavity is T-shaped and is arranged at the middle position in the direction of arrangement of the cable cores. In other embodiments, two anti-drop forming cavities may be arranged, that is, one of the anti-drop forming cavities is located at the front end in the cable core arrangement direction, and the other is located at the tail end in the cable core arrangement direction, so that the injection-molding holding portion has two portions which are embedded into the insulating substrate and are in blocking fit with the insulating substrate in the thickness direction, or the number of the anti-drop forming cavities is adjusted according to the size of the insulating substrate, and is not limited to adopt one or two schemes.
Embodiment 3 of the cable connection assembly of the present invention: the difference from the above embodiment is that in this embodiment, the anti-drop forming cavities are arranged in pairs, and each pair of anti-drop forming cavities is arranged on both sides of the cable core, that is, the number of pairs of anti-drop forming cavities is equal to the number of cable cores, so that the area for the stop fit between the injection molding fixing part and the insulating substrate is increased, and the connection strength between the insulating substrate and the injection molding fixing part is improved.
Embodiment 4 of the cable connection assembly of the present invention: the difference from the above embodiment is that, in this embodiment, the anti-drop molding cavity is composed of a flow passage and an anti-drop casting cavity, the flow passage extends along the thickness direction of the insulating substrate, one end of the flow passage is communicated with the molding surface of the insulating substrate, the other end of the flow passage is connected to the anti-drop casting cavity, the radial dimension of the anti-drop casting cavity is larger than the radial dimension of the flow passage, the cavity wall of the anti-drop casting cavity connected to the flow passage is an arc surface, and the fluid material can be in blocking fit with the arc surface in the thickness direction of the insulating substrate after being cured in the anti-drop molding cavity, so that the injection molding holding part is limited.
Embodiment 5 of the cable connection assembly of the present invention: the difference with the above embodiment lies in that, in this embodiment, anticreep shaping chamber comprises overflowing passageway and anticreep pouring cavity, overflows the passageway and extends along the thickness direction of insulating substrate, and one end communicates with insulating substrate's profiled surface, and the other end connects in anticreep pouring cavity, and anticreep pouring cavity is reducing flaring structure, and its minor diameter section meets with overflowing the passageway, and major diameter section is the profiled surface of insulating substrate dorsad. After the fluid material is cured and molded in the anti-drop casting cavity, the fluid material can be in stop fit with the whole cavity wall of the anti-drop casting cavity to limit the injection molding fixing part from being separated from the insulating substrate. In other embodiments, the anti-drop molding cavity is composed of an overflowing channel and an anti-drop pouring cavity, the whole anti-drop molding cavity is a reducing flaring structure, the flaring structure penetrates through the insulating substrate in the thickness direction, a small-diameter section, close to the molding surface, of the flaring structure is the overflowing channel, and a large-diameter section, back to the molding surface, of the flaring structure is the anti-drop pouring cavity.
Embodiment 6 of the cable connection assembly of the present invention: the difference with the above embodiment is that, in this embodiment, the anti-drop molding cavity is composed of a flow passage and an anti-drop casting cavity, the flow passage extends along the thickness direction of the insulating substrate, one end of the flow passage is communicated with the molding surface of the insulating substrate, and the other end of the flow passage is connected with the anti-drop casting cavity. The radial dimensions of the flow passage and the anti-drop casting cavity are the same, a bulge such as an agnail protruding towards the axis is arranged in the cavity wall of the anti-drop casting cavity, when the fluid material is solidified in the anti-drop casting cavity, the bulge is embedded into the injection molding fixing part, when the injection molding fixing part is subjected to external force and is to be separated from the anti-drop casting cavity, the outer surface of the bulge forms the anti-drop cavity wall of the anti-drop casting cavity, and the anti-drop casting cavity wall is matched with the injection molding fixing part in a blocking mode to limit the injection molding fixing part to be separated from the insulating substrate integrally.
Example 7 of the cable connection assembly of the present invention: the difference from the above embodiment is that, in this embodiment, the anti-drop molding cavity is composed of an overflow channel and an anti-drop casting cavity, the overflow channel extends along the thickness direction of the insulating substrate, one end of the overflow channel is communicated with the molding surface of the insulating substrate, the other end of the overflow channel is connected to the anti-drop casting cavity, the anti-drop casting cavity is integrally located in the insulating substrate, and the end of the anti-drop casting cavity facing away from the molding surface does not penetrate through the insulating substrate.
Embodiment 8 of the cable connection assembly of the present invention: the difference from the above embodiment is that in this embodiment, the insulating substrate is provided with the placing grooves corresponding to the number of the cable cores, so that the cable cores are placed in the corresponding placing grooves, each placing groove is correspondingly communicated with one or a group of anti-drop pouring cavities, when pouring the fluid material, an operator needs to pour the placing grooves and the anti-drop pouring cavities communicated with the placing grooves, and the injection molding holding parts fix the corresponding cable cores and the insulating substrate after molding and do not connect in the cable core arrangement direction. In other embodiments, the insulating substrate is provided with a communicating groove, and the communicating groove only communicates with a part of the placing grooves and the corresponding anti-drop molding cavities, and does not communicate with all the placing grooves and the anti-drop molding cavities.
Embodiment 9 of the cable connection assembly of the present invention: the difference from the above embodiment is that in this embodiment, the cable core is directly placed on the board surface of the insulating substrate, and the flow passage in the anti-drop forming cavity is directly communicated with the board surface. When pouring the fluid material, an operator may place a mold on the surface of the insulating substrate, inject the fluid material into the mold, and solidify and mold the fluid material by using the space in the mold, which is not limited to the scheme of arranging the overlapping groove on the insulating substrate.
The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A cable connection assembly comprising:
a cable;
a connector connected to at least one end of the cable, the connector of the at least one end including:
an insulating substrate;
the contact assemblies are arranged on the insulating base plate and connected with the cable cores in the cable, the contact assemblies are arranged in rows, and the cable cores are arranged in rows and correspond to the contact assemblies one by one;
the injection molding fixing part is used for embedding the cable so as to relatively fix the cable and the insulating substrate;
it is characterized in that the preparation method is characterized in that,
the insulating substrate is provided with a molding surface for molding the injection molding fixing part and an anti-drop molding cavity communicated with the molding surface; the anti-drop molding cavity comprises a flow passage extending from the molding surface to the inside of the insulating substrate and an anti-drop pouring cavity communicated with the flow passage;
the injection molding and fixing part is integrally formed on the molding surface and in the anti-drop molding cavity, the anti-drop casting cavity is provided with an anti-drop cavity wall, and the anti-drop cavity wall and the part of the injection molding and fixing part formed in the anti-drop casting cavity are in blocking fit in the thickness direction of the insulating substrate so as to prevent the injection molding and fixing part from dropping off from the insulating substrate; the anti-drop forming cavities are more than two and are arranged at intervals in the arrangement direction of the cable cores, the anti-drop forming cavities are arranged at intervals in the arrangement direction of the cable cores, and the anti-drop forming cavities are arranged on the insulating substrate on two sides of each cable core in the arrangement direction; the insulation substrate is provided with a communicating groove and a placing groove matched with the appearance of the cable core, the communicating groove extends along the arrangement direction of the cable core and is communicated with each anti-drop forming cavity, the extending direction of the communicating groove is the same as the arrangement direction of the placing groove and is communicated with each placing groove, and the bottom of the communicating groove forms the forming surface; the fluid material is solidified on the molding surface to form the upper half part of the injection molding fixing part, the fluid material is solidified in the anti-drop molding cavity to form the lower half part of the injection molding fixing part, the lower half part is arranged at intervals in the cable core arrangement direction, the intersection of the flow passage and the anti-drop casting cavity forms a step surface, the step surface is positioned on one part of the wall of the anti-drop casting cavity to form the anti-drop casting cavity wall of the anti-drop casting cavity, and the step surface can be in blocking fit with the lower half part of the injection molding fixing part in the thickness direction of the insulating substrate.
2. The cable connection assembly of claim 1, wherein a side surface of the injection molded retention portion is flush with a side surface of the insulating base plate in a thickness direction.
3. The cable connection assembly of claim 1, wherein the anti-drop forming cavity is T-shaped or L-shaped in cross-section.
4. The cable connection assembly of claim 1, wherein an anti-drop casting cavity of the anti-drop molding cavities extends through to a side of the insulating substrate opposite the molding surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317675.4A CN111509451B (en) | 2020-04-21 | 2020-04-21 | Cable connection assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317675.4A CN111509451B (en) | 2020-04-21 | 2020-04-21 | Cable connection assembly |
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| CN111509451A CN111509451A (en) | 2020-08-07 |
| CN111509451B true CN111509451B (en) | 2021-07-30 |
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| CN202010317675.4A Active CN111509451B (en) | 2020-04-21 | 2020-04-21 | Cable connection assembly |
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|---|---|---|---|---|
| JP5821825B2 (en) * | 2012-11-16 | 2015-11-24 | 日立金属株式会社 | Cable assembly and manufacturing method thereof |
| CN203288840U (en) * | 2012-12-27 | 2013-11-13 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly |
| CN107681349B (en) * | 2016-08-01 | 2020-06-02 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
| CN107565229B (en) * | 2017-07-21 | 2020-06-09 | 番禺得意精密电子工业有限公司 | Electrical connector |
| CN208478652U (en) * | 2018-06-05 | 2019-02-05 | 温州意华接插件股份有限公司 | Connector mould group |
| CN110752467A (en) * | 2019-11-18 | 2020-02-04 | 昆山雷匠通信科技有限公司 | Plate-to-plate radio frequency plug and manufacturing method thereof |
| CN110994297B (en) * | 2019-12-16 | 2021-05-18 | 昆山雷匠通信科技有限公司 | Radio frequency plug |
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2020
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