A quick-fit connector

Abstract

The utility model discloses a quick connector, including insulating outer mode, shell and a plurality of terminal, the terminal group side of insulating outer mode inside still is equipped with shunt subassembly and clamping assembly, the line connection of one to two of shunt subassembly realizes, and clamping assembly is embedded on the shell and can clamping core line. The utility model discloses simple structure, and it is convenient for production and assembly, can effectively restrain core line and concentrate pressure joint together and realize reliable electric connection and shunt, save space and reduce the size of connector, and can tightly press every core line in the shell from the top and the bottom of shell, avoid or limit all core line and the terminal connected along the axial movement, ensure the stability of cable and the terminal on the connector, clamping every core line on the shell, and external force is not easy to pull off cable, and can be directly sealed as sealing element the junction of shell and terminal, save subsequent glue liquid sealing process and sealing working hours, reduce production cost, shorten production cycle, improve production efficiency, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a quick-connect connector. Background Technology

[0002] In production, common quality problems with connectors mainly focus on the following two aspects:

[0003] The first issue is that during the outer mold encapsulation process, the adhesive material flowing into the terminal area affects the mating function of the terminals. This problem can be solved by sealing the area between the wire core and the outer shell with resin or glue of appropriate viscosity, allowing it to cure before the outer mold encapsulation process. However, viscosity fluctuations in the glue / resin itself or due to environmental temperature fluctuations can cause problems. A decrease in viscosity can lead to overfilling and the adhesive flowing into the terminal functional area, affecting the mating function, while an increase in viscosity can lead to insufficient filling and inadequate sealing. Consequently, during the final outer mold forming, adhesive material may enter the terminal functional area, affecting the mating function. Furthermore, the sealing and curing processes undoubtedly increase the total production time.

[0004] Secondly, the internal wiring of the connector is inconvenient to operate and prone to loosening. Currently, the commonly used connection methods for 1-to-2 splitters are soldering and PCB conversion. Soldering is difficult to operate when facing situations with high current carrying capacity, large conductive parts, and limited space. The large contact points are prone to burning the insulation, and the solder at the solder joints may soften due to high temperature and cause contact failure. PCB conversion is relatively convenient to operate, but due to the large current and limited space, the copper layer on the PCB is thick, resulting in high cost. Although using pad soldering saves space, the pads are prone to detachment under stress after soldering, leading to functional problems. Although using through-hole soldering can improve the detachment problem, it requires more space for PCB traces, increasing the size of the PCB and connector, which is not suitable for small space scenarios. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a quick-connect connector. The connector has a small overall size, simple structure, and is easy to manufacture and assemble. It is not easily pulled loose by external force, and can directly seal the connection between the housing and the terminal, eliminating the need for subsequent adhesive sealing processes and sealing time, thereby reducing production costs, shortening the production cycle, improving production efficiency, and reducing production costs.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A quick-connect connector includes an insulating outer mold, a housing, and a terminal group arranged from the outside to the inside. The terminal group includes a plurality of terminals extending in the same direction. Each terminal is fixed inside the housing and electrically connected to a core wire. Each core wire includes an insulating portion and a conductive portion from the outside to the inside. An insulating outer sheath is sleeved around the plurality of core wires. The insulating outer mold is disposed at one end of the insulating outer sheath and around the housing, and the other end extends to the outside of the insulating outer mold. The connector is characterized by further including a branching assembly and a locking assembly disposed inside the insulating outer mold and beside the terminal group, wherein:

[0008] The shunt assembly includes several sets of copper tubes and insulating sleeves. Each copper tube is riveted to the periphery of two conductive parts, and each insulating sleeve is fitted around one of the copper tubes. The insulating sleeves are arranged in parallel or side by side.

[0009] The clamping assembly includes two clamping sleeves, which are respectively fitted into the upper and lower walls of the rubber shell and aligned vertically. Each clamping sleeve passes through the rubber shell and extends into its inner side to clamp the upper or lower wall of one of the insulating parts.

[0010] As a further explanation of the above technical solution:

[0011] In the above technical solution, each of the sleeves is a T-shaped structure, including a positioning part and a clamping part. Each positioning part is fitted into the outer wall of the rubber shell. Each clamping part has a plurality of arc-shaped grooves at its end. The plurality of arc-shaped grooves are arranged in the same direction as the plurality of terminals, and each arc-shaped groove is adapted to the contour of an insulating part.

[0012] In the above technical solution, each of the arc-shaped slots has two or more ribs arranged axially on its inner wall, and each rib can be matched and abutted against or embedded in the outer wall of an insulating part.

[0013] In the above technical solution, a row of independent cavities extending through the front and rear ends of the housing are formed on the housing. Each cavity can accommodate one terminal. The upper and lower ends of the housing are symmetrically provided with two positioning grooves. Each positioning groove can accommodate one sleeve and is connected to all the cavities. Each sleeve can pass through a positioning groove and extend into a cavity to clamp the insulation of each core wire.

[0014] In the above technical solution, each clamp part is provided with a positioning protrusion on both sides of each arc-shaped slot. When each sleeve is installed on the rubber shell, each positioning protrusion passes through a positioning groove and is attached to the upper or lower wall of the cavity to secure the rubber shell. The sleeve cannot be removed in reverse without damaging the positioning protrusion or the rubber shell.

[0015] In the above technical solution, two or more guide grooves and first guide protrusions are formed on the inner wall of each cavity on the housing. All the guide grooves are provided on the inner wall of the end of the cavity facing the shunt assembly and are matched and provided on the periphery of the insulating part. Each group of first guide protrusions is adapted to the outer contour of a terminal.

[0016] In the above technical solution, each terminal is located beside the clamping assembly. The two axial ends of each terminal are a plug-in part and a wiring part, respectively. Each wiring part can be matched with a clamping clamp and a conductive part. Each plug-in part includes two cantilever springs that are inclined towards each other and bent away from each other. The two cantilever springs can be separated under the action of external force and clamped between them under the action of rebound force. Each terminal has two or more second guide protrusions between the plug-in part and the wiring part. Each second guide protrusion matches the guide groove.

[0017] In the above technical solution, the end of the rubber shell away from the insulating outer mold can be matched with a male connector. The male connector includes a shell and a plurality of male pins fixed therein and arranged side by side. One end of each male pin can extend into the rubber shell and match and connect with a terminal therein, and the other end extends to the outside of the shell.

[0018] In the above technical solution, the outer wall of the rubber shell is provided with a first anti-fooling protrusion, and the outer wall of the male connector is provided with a matching second anti-fooling protrusion.

[0019] Compared with the prior art, the advantages of this utility model are as follows: the structure is simple, which facilitates production and assembly. The branching component can effectively constrain the conductive parts of the core wires and press them together to achieve reliable electrical connection and branching. The compact structure and flat riveting shape can save space and reduce the size of the connector. The clamping component can press each core wire tightly into the housing from the top and bottom, avoiding or restricting the axial movement of all core wires and connected terminals, ensuring the stability of the cables and terminals on the connector. Furthermore, it clamps each core wire onto the housing, making it difficult for external forces to loosen the cable. It can also be used as a sealant to directly seal the connection between the housing and the terminal, eliminating the need for subsequent adhesive sealing processes and sealing time, reducing production costs, shortening the production cycle, improving production efficiency, and reducing production costs. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of this embodiment;

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the uninsulated outer mold;

[0022] Figure 3 yes Figure 2 A schematic diagram of the decomposed structure;

[0023] Figure 4 This is a schematic diagram of the card sleeve structure in this embodiment;

[0024] Figure 5 This is a cross-sectional view of the shell in this embodiment;

[0025] Figure 6 This is a schematic diagram of the terminal structure in this embodiment;

[0026] Figure 7 This is a schematic diagram of the male connector in this embodiment.

[0027] In the diagram: 1. Insulating outer sheath; 2. Copper tube; 3. Insulating sleeve; 4. Arc-shaped groove; 5. Rib; 6. Cavity; 7. Positioning protrusion; 8. Cantilever spring; 9. Second guide protrusion; 20. Insulating outer mold; 30. Plastic shell; 31. Positioning groove; 32. Guide groove; 33. First guide protrusion; 34. First foolproof protrusion; 40. Terminal; 41. Plug-in part; 42. Wiring part; 50. Core wire; 51. Insulating part; 52. Conductive part; 70. Sleeve; 71. Positioning part; 72. Clamping part; 80. Male connector; 81. Housing; 82. Male pin; 83. Second foolproof protrusion. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] like Figure 1-2As shown, a quick-connect connector includes an insulating outer mold 20, a housing 30, and a terminal group arranged from the outside to the inside. The terminal group includes a plurality of terminals 40 extending in the same direction. Each terminal 40 is fixed inside the housing 30 and is electrically connected to a core wire 50. Each core wire 50 includes an insulating part 51 and a conductive part 52 from the outside to the inside. An insulating outer sheath 1 is sleeved around the plurality of core wires 50. An insulating outer mold 20 is provided at one end of the insulating outer sheath 1 and around the housing 30, and the other end extends to the outside of the insulating outer mold 20. The connector also includes a branching assembly and a clamping assembly disposed inside the insulating outer mold 20 and beside the terminal group.

[0031] like Figure 2-3 As shown, the shunt assembly includes several sets of copper tubes 2 and insulating sleeves 3. Each copper tube 2 is riveted to the periphery of two conductive parts 52, and each insulating sleeve 3 is fitted around a copper tube 2. Several insulating sleeves 3 are arranged side by side. In this embodiment, each copper tube 2 is fitted around the two conductive parts 52 and riveted tightly to achieve electrical connection and branching between the two core wires. Each insulating sleeve 3 is fitted onto the riveted copper tube 2 to achieve insulation between the lines. The cooperation of multiple sets of copper tubes 2 and insulating sleeves 3 can effectively constrain and guide the core wires 50 and concentrate them together. The two clamping sleeves 70 can further clamp the insulating part 51 of each core wire 50 onto the housing 30, making it difficult for external force to easily loosen the individual core wires 50 inside the cable. At the same time, the branching assembly constrains multiple core wires 50 together. Combined with the flat riveted shape of the copper tubes 2 and their parallel or side-by-side arrangement, the overall outer contour is relatively small, ultimately achieving the purpose of reducing the volume of the housing 30 and the insulating outer mold 20, thereby reducing the size of the connector head. In application, heat shrink tubing, corrosion-resistant sleeves, fiberglass tubes, or electrical adhesives can be used to make the insulating sleeves 3.

[0032] like Figure 4As shown, the clamping assembly includes two retainers 70, which are respectively fitted into the upper and lower walls of the housing 30 and aligned vertically. Each retainer 70 passes through the housing 30 and extends into its inner side to clamp the upper or lower wall of an insulating part 51. Each retainer 70 has a T-shaped structure, including a positioning part 71 and a clamping part 72. Each positioning part 71 is fitted into the outer wall of the housing 30. Each clamping part 72 has several arc-shaped grooves 4 formed at its end. The arc-shaped grooves 4 are arranged in the same direction as several terminals 40, and each arc-shaped groove 4 is adapted to the contour of an insulating part 51. Each arc-shaped groove 4 has two or more ribs 5 arranged axially on its inner wall. Each rib 5 can match and abut against or be embedded in the outer wall of an insulating part 51, thereby achieving a tight seal between the sleeve 70 and each core wire 50. At the same time, due to the matching tight seal between the sleeve 70 and the housing 30, a sealed connection can be achieved between the housing 30, the terminal 40 and the core wire 50. Before the subsequent molding of the insulating outer mold 20, there is no need to seal the terminal and housing with adhesive, reducing the sealing process and time, reducing production costs, shortening the production cycle and improving production efficiency. The clamp part 72 has a positioning protrusion 7 on both sides of the axial direction of each arc-shaped groove 4. When each sleeve 70 is clamped onto the housing 30, the positioning protrusion 7 passes through the positioning groove 31 of the housing 30 and enters the cavity 6, sticking to the upper or lower wall of the cavity 10, fixing the sleeve 70 to the housing 30. The sleeve 70 cannot be removed in reverse without damaging the positioning protrusion 7 or the housing 30.

[0033] like Figure 3-4 As shown, during assembly, first cut a section from each core wire 50 inside the insulating outer sheath 1 as a jumper wire. Strip the insulation from both ends of the jumper wire to expose two conductive sections 52. At the same time, strip the insulation from the end of the core wire and the area of ​​the core wire near the outer sheath to expose two conductive sections 52. Fit one core wire 50 and one jumper wire near the outer sheath end into a copper tube 2, and rivet it into a flat shape before fitting it into the insulating sheath 3. Then, connect and fix the other conductive section 52 on each core wire 50 to the wiring part 42 of a terminal 40, and then connect each terminal... The core wires 50, terminals 40, and housing 30 are inserted one by one into the housing. After this, the two retaining sleeves 70 are inserted into the housing 30 from the top and bottom respectively, pressing down on each insulating part 51. This completes the assembly and sealing of the core wires 50, terminals 40, and housing 30. This process avoids damaging the conductive part 52 of the core wires 50 and tightly presses each core wire 50 into the housing 30, preventing axial movement of the core wires 50 and terminals 40. This ensures the stability of the cable and terminals on the connector. The structure is simple, easy to manufacture and assemble, and has a low cost. In applications, a section of the core wire 50 can be cut from the cable itself as a jumper wire, or a section of electronic wire of similar specifications can be directly cut as a jumper wire.

[0034] like Figure 5As shown, a row of independent cavities 6 are formed on the housing 30, extending through the front and rear ends of the housing 30. Each cavity 6 can accommodate a terminal 40. Two positioning grooves 31 are symmetrically provided at the upper and lower ends of the housing 30. Each positioning groove 31 can accommodate a retainer 70 and is connected to all cavities 6. Each retainer 70 can pass through a positioning groove 31 and extend into a cavity 6 to clamp the insulation portion 51 of each core wire 50. Two or more guide grooves 32 and first guide protrusions 33 are formed on the inner wall of each cavity 6 on the housing 30. All guide grooves 32 are provided on the inner wall of the end of a cavity 6 facing the shunt assembly and are matched to the periphery of an insulation portion 51. Each set of first guide protrusions 33 is adapted to the outer contour of a terminal 40.

[0035] like Figure 6 As shown, each terminal 40 is located on the side of the clamping assembly. The two ends of each terminal 40 are a plug-in part 41 and a wiring part 42, respectively. Each wiring part 42 can be matched with a clamping conductive part 52. Each plug-in part 41 includes two cantilever springs 8 that are inclined towards each other and bent away from each other. The two cantilever springs 8 can be separated under the action of external force and clamped between them under the action of rebound force. Each terminal 40 has two or more second guide protrusions 9 between the plug-in part 41 and the wiring part 42. Each second guide protrusion 9 matches the guide groove 32.

[0036] Understandably, the guide groove 32, the first guide protrusion 33, and the second guide protrusion 9 work together to ensure that each terminal 40 can be correctly and quickly installed into the housing 30 and assembled in place.

[0037] like Figure 7 As shown, the end of the housing 30 facing away from the insulating outer mold 20 can mate with a male connector 80. The male connector 80 includes a housing 81 and a plurality of male pins 82 fixed therein and arranged side by side. One end of each male pin 82 extends into the housing 30 and mates with a terminal 40 therein, while the other end extends to the outside of the housing 30. The outer wall of the housing 30 is provided with a first anti-fooling protrusion 34, and the outer wall of the male connector 80 is provided with a matching second anti-fooling protrusion 83.

[0038] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A quick-connect connector, the connector comprising an insulating outer mold, a housing, and a terminal group arranged from the outside to the inside, the terminal group comprising a plurality of terminals extending in the same direction, each terminal being fixed inside the housing and electrically connected to a core wire, each core wire including an insulating portion and a conductive portion from the outside to the inside, an insulating outer sheath surrounding the plurality of core wires, one end of the insulating outer sheath and the outer periphery of the housing being provided with the insulating outer mold, the other end of which extends to the outside of the insulating outer mold; characterized in that, It also includes a branching assembly and a clamping assembly disposed inside the insulating outer mold and beside the terminal group, wherein: The shunt assembly includes several sets of copper tubes and insulating sleeves. Each copper tube is riveted to the periphery of two conductive parts, and each insulating sleeve is fitted around one of the copper tubes. The insulating sleeves are arranged in parallel or side by side. The clamping assembly includes two clamping sleeves, which are respectively fitted into the upper and lower walls of the rubber shell and aligned vertically. Each clamping sleeve passes through the rubber shell and extends into its inner side to clamp the upper or lower wall of one of the insulating parts.

2. The quick-connect connector according to claim 1, characterized in that, Each of the aforementioned sleeves is a T-shaped structure, including a positioning part and a clamping part. Each of the positioning parts is fitted into the outer wall of the rubber shell. Each of the clamping parts has several arc-shaped grooves formed at its end. The arc-shaped grooves are arranged in the same direction as the terminals, and each arc-shaped groove is adapted to the contour of an insulating part.

3. A quick-connect connector according to claim 2, characterized in that, Each of the arc-shaped slots has two or more ribs arranged axially on its inner wall, and each rib can be matched and abutted against or embedded in the outer wall of an insulating part.

4. A quick-connect connector according to claim 2, characterized in that, The housing has a row of independent cavities that extend through the front and rear ends of the housing. Each cavity can accommodate one terminal. The upper and lower ends of the housing are symmetrically provided with two positioning grooves. Each positioning groove can accommodate one sleeve and is connected to all the cavities. Each sleeve can pass through a positioning groove and extend into a cavity to clamp the insulation of each core wire.

5. A quick-connect connector according to claim 4, characterized in that, Each clamp part has a positioning protrusion on both sides of each arc-shaped slot. When each sleeve is fitted onto the plastic shell, each positioning protrusion passes through a positioning groove and is attached to the upper or lower wall of the cavity to secure the plastic shell. The sleeve cannot be removed in reverse without damaging the positioning protrusion or the plastic shell.

6. A quick-connect connector according to claim 4, characterized in that, Two or more guide grooves and first guide protrusions are formed on the inner wall of each cavity on the housing. All the guide grooves are provided on the inner wall of the end of the cavity facing the shunt assembly and are matched on the periphery of the insulating part. Each set of first guide protrusions is adapted to the outer contour of a terminal.

7. A quick-connect connector according to claim 6, characterized in that, Each terminal is located beside the clamping assembly. The two axial ends of each terminal are a plug-in portion and a wiring portion, respectively. Each wiring portion can be matched with a clamping clamp and a conductive portion. Each plug-in portion includes two cantilever springs that are inclined towards each other and bent away from each other. The two cantilever springs can be separated under the action of external force and clamped between them under the action of rebound force. Each terminal has two or more second guide protrusions between the plug-in portion and the wiring portion. Each second guide protrusion matches the guide groove.

8. A quick-connect connector according to any one of claims 1-7, characterized in that, The end of the housing away from the insulating outer mold can be matched with a male connector. The male connector includes a housing and a plurality of male pins fixed therein and arranged side by side. One end of each male pin can extend into the housing and match with a terminal therein, and the other end extends to the outside of the housing.

9. A quick-connect connector according to claim 8, characterized in that, The outer wall of the housing is provided with a first anti-foolproof protrusion, and the outer wall of the male connector is provided with a matching second anti-foolproof protrusion.

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