Plastic package connector with insert terminal

Abstract

The utility model discloses a plastic -coated connector with insert terminal, including connector main part and a plurality of conductive terminal, arbitrary conductive terminal includes first conductive end and second conductive end, and first conductive end includes first conductive muscle board and first end body, and second conductive end includes second conductive muscle board and second end body, the connector main part includes connector end seat and plastic -coated main part, and the connector end seat includes with the end seat wrapping portion for wrapping first conductive muscle board, and is equipped with the interval recess between arbitrary adjacent end seat wrapping portion, and the plastic -coated main part includes wrapping pipe cylinder, and is equipped with the connecting plate body between arbitrary adjacent wrapping pipe cylinder. The utility model discloses through the design of end seat wrapping portion and wrapping pipe cylinder, realizes stable wrapping and positioning, and interval recess and connecting plate body design can eliminate certain deformation, and plastic -coated forming is more regular, and terminal exposed end position degree is more accurate, improves product pass rate. Satisfy the unobstructedness of insert terminal pipe cavity, improve terminal structure strength, and product scrap rate obtains effective control.

Description

Technical Field

[0001] This utility model relates to a plastic-coated connector with embedded terminals, and belongs to the technical field of plastic-coated connectors. Background Technology

[0002] Plastic overmolding technology in connector manufacturing improves product sealing, structural strength, and production efficiency by integrating metal terminals (such as PIN pin modules) with a plastic shell through injection molding. It is widely used in electronics, industry, communications and other fields.

[0003] There is currently a type of plastic-coated connector with multiple spaced conductive terminals inside. The conductive terminals have a first conductive end and a second conductive end that are perpendicular to each other. The plastic coating needs to cover the turning point of the first conductive end and the second conductive end, while the free ends of the first conductive end and the second conductive end need to be exposed.

[0004] The layout of these multiple conductive terminals and the exposed structure at both ends make the plastic coating process quite difficult. This is mainly because the connector body experiences certain tension changes during the plastic coating process, which causes changes in the embedded position of the conductive terminals. Ultimately, the free ends of the first and second conductive terminals will have a certain relative positional deviation, making the connector unsuitable and resulting in a very low product qualification rate.

[0005] In addition, the free end of the first conductive terminal needs to be designed as a round tubular terminal, which is generally welded. However, the round tubular terminal has a tube channel, which can easily cause the tube cavity to be blocked during the plastic coating process, resulting in a high product scrap rate. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the prior art and to propose a plastic-coated connector with insert terminals, which addresses the problems of large relative positional accuracy deviations of the exposed terminals and high scrap rates in traditional plastic-coated connectors.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A plastic-coated connector with insert terminals includes a connector body and a plurality of conductive terminals disposed in parallel and spaced apart within the connector body. Each of the conductive terminals includes a first conductive end and a second conductive end having a relative included angle, and the free ends of the first conductive end and the free ends of the second conductive end are exposed relative to the connector body. The first conductive end includes a first conductive rib and a first end body disposed on the free end of the first conductive rib; the second conductive end includes a second conductive rib and a second end body disposed on the free end of the second conductive rib. The connector body includes a connector end seat and a plastic-coated body disposed on the connector end seat. The connector end seat includes end seat wrapping portions that are spaced apart from the first conductive ribs and are corresponding to each other. An interval groove is provided between any two adjacent end seat wrapping portions. The plastic-coated body includes wrapping tube columns that are spaced apart from each other. A connecting plate is provided between any two adjacent wrapping tube columns.

[0008] Preferably, inclined support ribs are provided on both sides of any of the connecting plates. The inclined support ribs extend from the connector end seat toward the side of the connecting plate away from the connector end seat, and the wide end of the inclined support ribs is located on one side of the connector end seat.

[0009] Preferably, the wrapping tube column is a truncated cone with a circular cross-section, and the diameter of the end of the wrapping tube column located on the side of the connector end seat is greater than the diameter of the end of the wrapping tube column located away from the connector end seat.

[0010] Preferably, the connector end seat has a plurality of recessed cavities on the side opposite to the spacer groove, which correspond one-to-one with the wrapping tube column, and the bottom wall of the recessed cavity has a protruding column.

[0011] Preferably, the connector end seat has two spaced-apart sidewall portions on the side away from the wrapping tube column, and any end seat wrapping body is disposed between the two sidewall portions and connected to the two sidewall portions; The first end of the first conductive rib extends outward from the side wall portion and is relatively exposed.

[0012] Preferably, any of the end-cap wrapping portions has a structural rib connected to the connector end-cap on the side opposite to the first end body.

[0013] Preferably, the connector end cap is provided with a plurality of fastener insertion holes.

[0014] Preferably, the free end of the second conductive rib is provided with two wing plates, and the second end body is a cylindrical terminal formed by rolling the two wing plates. A sealing notch matching the position of the free end of the wrapping tube column is formed between the cylindrical terminal and the second conductive rib for injection molding sealing.

[0015] Preferably, the sealing notch includes an arc-shaped groove on the second conductive rib plate, a right-angle notch between the tubular terminal and the two wing plates, and a tapered transition section between the second conductive rib plate and the tubular terminal.

[0016] Preferably, the first end body includes a first connecting plate connected to the first conductive rib plate and a U-shaped end with a U-shaped cross-section connected to the first connecting plate; The first connecting plate is provided with at least one limiting protrusion, and the free end of the U-shaped end is provided with at least one conductive extension end.

[0017] The beneficial effects of this utility model are mainly reflected in: 1. The design of the end-mount wrapping part and the wrapping tube column ensures stable wrapping and positioning of the first and second conductive ribs. At the same time, the design of the interval groove and the connecting plate can eliminate certain deformations, making the plastic coating more regular and the position of the exposed end of the terminal more accurate, thus improving the product qualification rate.

[0018] 2. Ensures unobstructed flow in the insert terminal cavity, virtually eliminating cavity blockage, while simultaneously improving the structural strength of the terminal and effectively controlling the product scrap rate.

[0019] 3. The overall structural strength of the connector is reliable and stable. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the plastic-coated connector with embedded terminals according to this utility model.

[0021] Figure 2 This is a schematic diagram of the plastic-coated connector with insert terminals from another perspective.

[0022] Figure 3 This is a top view of the plastic-coated connector with insert terminals according to this utility model.

[0023] Figure 4 This is a side view of the plastic-coated connector with insert terminals according to this utility model.

[0024] Figure 5 This is a schematic diagram of another side view of the plastic-coated connector with insert terminals according to this utility model.

[0025] Figure 6 This is a schematic diagram of the conductive terminals in the plastic-coated connector with embedded terminals of this utility model.

[0026] Figure 7 This is a schematic diagram of the conductive terminals in the plastic-coated connector with embedded terminals according to this utility model from another perspective.

[0027] Figure 8 This is a side view of the conductive terminals in the plastic-coated connector with insert terminals of this utility model.

[0028] Figure 9 This is a schematic diagram of another embodiment of the plastic-coated connector with insert terminals according to this utility model. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0031] This utility model provides a plastic-coated connector with embedded terminals, such as... Figures 1 to 8 As shown, the connector includes a connector body 1 and a plurality of conductive terminals 2 arranged in parallel and spaced apart within the connector body 1. Each conductive terminal 2 includes a first conductive end 21 and a second conductive end 22 having a relative included angle. The free ends of the first conductive end 21 and the free ends of the second conductive end 22 are exposed relative to the connector body.

[0032] The first conductive end 21 includes a first conductive rib plate 211 and a first end body 212 disposed on the free end of the first conductive rib plate 211. The second conductive end 22 includes a second conductive rib plate 221 and a second end body 222 disposed on the free end of the second conductive rib plate.

[0033] The connector body 1 includes a connector end seat 11 and a plastic-coated body 12 disposed on the connector end seat. The connector end seat 11 includes an end seat wrapping part 3 that is spaced apart from the first conductive rib plate 211 and is used to wrap the first conductive rib plate. An interval groove 4 is provided between any adjacent end seat wrapping parts. The plastic-coated body 12 includes a wrapping tube column 5 that is spaced apart from the second conductive rib plate and is provided between any adjacent wrapping tube columns. A connecting plate 6 is provided between any adjacent wrapping tube columns.

[0034] Detailed implementation process and principle explanation: Conductive terminal 2 adopts Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown in the parallel spacing arrangement, the positional accuracy of the exposed free ends of the first conductive end 21 and the second conductive end 22 after the connector body 1 is molded with plastic-coated conductive terminals 2 is required. The outer surface of the traditional connector body 1 is a flat surface, and during the injection molding and cooling process, a certain stress difference will occur, resulting in a deviation in the positional accuracy of the free ends and a low product qualification rate.

[0035] In this case, the design of end-mount wrapping part 3 and wrapping tube column 5 is adopted, which can realize the separate wrapping and stable fixation of the first conductive rib plate and the second conductive rib plate. In addition, the design of the spacer groove 4 and the connecting plate 6 makes a certain isolation between the mutual wrapping molding. When the connector body 1 is injection molded, it can stably and reliably wrap the conductive terminal 2 while eliminating a certain mutual stress influence, thereby improving the relative position accuracy of the exposed free end of the conductive terminal 2.

[0036] This connector is mainly used in automotive thermal management systems as a heater terminal. It has a certain working heat effect. The plastic-coated connector body design of this case meets certain heat dissipation performance and deformation resistance, making the terminal conduction and mating more reliable and stable, and significantly improving the effective service life.

[0037] In one specific embodiment, inclined support ribs 60 are provided on both sides of any connecting plate 6. The inclined support ribs extend from the connector end seat toward the side of the connecting plate away from the connector end seat, and the wide end of the inclined support ribs is located on one side of the connector end seat.

[0038] like Figure 1 and Figure 2 As shown, the inclined support rib 60 serves as a reinforcement for the connecting plate 6. It is designed with the wide end located on one side of the connector end seat and gradually narrows towards the far end of the connecting plate. This design satisfies the requirement that the stress at the injection molding end gradually narrows and decreases, thereby reducing deformation and satisfying the structural strength of the plastic-coated body 12.

[0039] In one specific embodiment, the wrapping tube column 5 is a flat-sectioned cone with a circular cross-section, and the diameter of the end of the wrapping tube column located on the connector end seat side is greater than the diameter of the end of the wrapping tube column located away from the connector end seat side.

[0040] This design involves using a tube with a progressively smaller cross-sectional area along its extension direction. During injection molding, the material is collected from the wide end to the narrow end, thus reducing the impact on terminal displacement after injection molding and greatly ensuring the positional accuracy of the conductive terminal 2.

[0041] In one specific embodiment, the free end of the encapsulated tube 5 is provided with a chamfered tapered end 50.

[0042] The chamfered conical end 50 is also a flat truncated cone with a circular cross-section. Its inclined taper is narrowed, which meets the end fixing requirements and makes its terminal limiting and wrapping more reliable and stable.

[0043] In one specific embodiment, such as Figure 9 As shown, the connector end seat 11 has several recessed cavities 10 on the side opposite to the spacer groove, which correspond one-to-one with the wrapping tube column. The bottom wall of the recessed cavity is provided with protruding columns 101.

[0044] Specifically, the recessed cavity 10 is used to eliminate a certain amount of injection stress, making the injection molding more precise, while the protruding column 101 is mainly used for structural strength reinforcement. It should be noted that the protruding column 101 is connected to the wall of the recessed cavity facing the side of the enclosing tube column, thus playing a supporting and reinforcing role. In addition, the two side walls of the recessed cavity adjacent to the wall where the protruding column 101 is set are provided with arc-shaped transition slopes 102, which further enhance the structural strength.

[0045] In one specific embodiment, the connector end seat 11 has two spaced-apart sidewall portions 110 on the side away from the wrapping tube column, and any end seat wrapping body is disposed between the two sidewall portions and connected to the two sidewall portions; the first end body of the first conductive rib extends out of the sidewall portion and is relatively exposed.

[0046] This satisfies the structural strength requirements of the connector end cap 11, while also ensuring the mounting requirements of the end cap enclosure, and the first end cap is exposed neatly and reliably on the same side.

[0047] In one specific embodiment, the side of any end-cap wrapping portion 3 facing away from the first end body is provided with a structural rib 30 connected to the connector end-cap.

[0048] This satisfies the support requirements for the end-mount enclosure 3, while ensuring the overall structural strength and stability of the connector end-mount.

[0049] In one specific embodiment, the connector end cap 3 is provided with a plurality of fastener inlay holes.

[0050] It meets the design requirements for embedded mounting of structural components such as locking nuts.

[0051] In one specific embodiment, such as Figures 6 to 8 As shown, the free end of the second conductive rib plate 221 is provided with two wing plates 2210, and the second end body 222 is a cylindrical terminal formed by rolling the two wing plates. A sealing notch 7 for injection molding sealing is formed between the cylindrical terminal and the second conductive rib plate, which matches the position of the free end of the wrapped tube column.

[0052] Specifically, the cylindrical terminal is used for conductive mating. Since the cylindrical terminal has an inner cavity, in this case, a sealing notch 7 design is adopted to prevent the injection molding material from blocking the inner cavity during the plastic coating process. This satisfies the plastic coating molding qualification rate and reduces the scrap rate.

[0053] In one specific embodiment, the sealing gap 7 includes an arc-shaped groove 71 located on the second conductive rib plate, a right-angled gap 72 located between the circular tubular terminal and the two wing plates, and a tapered transition section 73 is provided between the second conductive rib plate and the circular tubular terminal.

[0054] This design satisfies the requirements of the moving module design during plastic coating molding, making the positioning, sealing, and detachment of the moving module convenient. At the same time, it ensures the internal locking stability of the second conductive rib plate 221 after plastic coating, making it less prone to loosening.

[0055] In one specific embodiment, the first end body 212 includes a first connecting plate 2121 connected to the first conductive rib plate and a U-shaped end 2122 with a U-shaped cross section connected to the first connecting plate; the first connecting plate is provided with at least one limiting protrusion 8, and the free end of the U-shaped end is provided with at least one conductive extension end 9.

[0056] Specifically, the U-shaped end 2122 is mainly used for tenon and mortise engagement with the conductive mating part to meet the reliability requirements of conductive locking, while the conductive extension end 9 facilitates precise positioning and mating, and the limiting protrusion 8 achieves precise positioning during plastic wrapping, further ensuring the reliable stability of the built-in conductive terminal.

[0057] As can be seen from the above description, this utility model, through the design of the end-cap wrapping part and the wrapping tube column, satisfies the stable wrapping and positioning of the first and second conductive rib plates. Simultaneously, the use of spaced grooves and connecting plates eliminates certain deformations, resulting in more regular plastic coating and more precise positioning of the exposed terminal ends, thus improving the product qualification rate. It ensures unobstructed flow in the insert terminal cavity, virtually eliminating cavity blockage, while also improving the terminal structural strength and effectively controlling the product scrap rate. The overall structural strength of the connector is reliable and stable.

[0058] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0059] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A plastic-coated connector with insert terminals, comprising a connector body and a plurality of parallel and spaced conductive terminals disposed within the connector body, wherein any of the conductive terminals includes a first conductive end and a second conductive end having a relative included angle, and the free ends of the first conductive end and the free ends of the second conductive end are exposed relative to the connector body; characterized in that: The first conductive end includes a first conductive rib and a first end body disposed on the free end of the first conductive rib; the second conductive end includes a second conductive rib and a second end body disposed on the free end of the second conductive rib. The connector body includes a connector end seat and a plastic-coated body disposed on the connector end seat. The connector end seat includes end seat wrapping portions that are spaced apart from the first conductive ribs and are corresponding to each other. An interval groove is provided between any two adjacent end seat wrapping portions. The plastic-coated body includes wrapping tube columns that are spaced apart from each other. A connecting plate is provided between any two adjacent wrapping tube columns.

2. The plastic-coated connector with insert terminals according to claim 1, characterized in that: Inclined support ribs are provided on both sides of any of the connecting plates. The inclined support ribs extend from the connector end seat toward the side of the connecting plate away from the connector end seat, and the wide end of the inclined support ribs is located on one side of the connector end seat.

3. The plastic-coated connector with insert terminals according to claim 2, characterized in that: The wrapping tube column is a flat-sectioned cone with a circular cross-section, and the diameter of the end of the wrapping tube column located on the side of the connector end seat is greater than the diameter of the end of the wrapping tube column located away from the connector end seat.

4. The plastic-coated connector with insert terminals according to claim 1, characterized in that: The connector end seat has several recessed cavities on the side opposite to the spacer groove, which correspond one-to-one with the wrapping tube column. The bottom wall of each recessed cavity has a protruding column.

5. The plastic-coated connector with insert terminals according to claim 1, characterized in that: The connector end seat has two spaced-apart sidewalls on the side away from the wrapping tube column, and any end seat wrapping body is disposed between the two sidewalls and connected to the two sidewalls. The first end of the first conductive rib extends outward from the side wall portion and is relatively exposed.

6. The plastic-coated connector with insert terminals according to claim 5, characterized in that: Any of the end-cap wrapping portions has a structural rib on the side opposite to the first end body that is connected to the connector end-cap.

7. The plastic-coated connector with insert terminals according to claim 1, characterized in that: The connector end cap is provided with several locking fastener insertion holes.

8. The plastic-coated connector with insert terminals according to any one of claims 1 to 7, characterized in that: The free end of the second conductive rib is provided with two wing plates, and the second end body is a cylindrical terminal formed by rolling the two wing plates. A sealing notch matching the position of the free end of the wrapping tube column is formed between the cylindrical terminal and the second conductive rib for injection molding sealing.

9. The plastic-coated connector with insert terminals according to claim 8, characterized in that: The sealing opening includes an arc-shaped groove on the second conductive rib plate, a right-angled slot between the tubular terminal and the two wing plates, and a tapered transition section between the second conductive rib plate and the tubular terminal.

10. The plastic-coated connector with insert terminals according to claim 8, characterized in that: The first end body includes a first connecting plate connected to the first conductive rib plate and a U-shaped end with a U-shaped cross section connected to the first connecting plate; The first connecting plate is provided with at least one limiting protrusion, and the free end of the U-shaped end is provided with at least one conductive extension end.

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