CN219760074U

CN219760074U - Miniature rectangular power connector

Info

Publication number: CN219760074U
Application number: CN202320689995.1U
Authority: CN
Inventors: 代俊华; 邱晓伟; 朱永刚
Original assignee: Kunshan Xinporter Electronic Technology Co ltd
Current assignee: Kunshan Xinporter Electronic Technology Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-09-26
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a miniature rectangular power connector which comprises a connector, wherein the tail end of the connector is provided with at least one positioning groove, a waterproof piece for sealing and positioning a plurality of core wires is arranged in the positioning groove, the waterproof piece comprises a group of sealing strips which are oppositely spliced, the edges of the sealing strips are provided with a plurality of arc-shaped openings, the opposite group of sealing strips are spliced to enable the plurality of arc-shaped openings to form round holes for accommodating the core wires in a one-to-one mode, the tail end of the connector is abutted against an inner die which is provided with injection molding and covers the plurality of core wires, and an outer die which is in butt joint with the tail end of the connector and is in injection molding is arranged outside the inner die. According to the utility model, an integrated waterproof piece is arranged between the inner die and the connector for each core wire, and the sealing performance of the rectangular connector is improved.

Description

Miniature rectangular power connector

Technical Field

The utility model belongs to the technical field of connectors, and particularly relates to a miniature rectangular power connector.

Background

Rectangular power connectors are widely used in general household appliances, industrial equipment, industrial networks, etc., and have limited installation space and are generally designed as micro-structures. Most of the rectangular power connector uses a dry environment, but under a wet or corrosion-prone space environment, the terminal is extremely easy to oxidize, the contact resistance of the terminal to the mating end is increased, an overheating phenomenon can occur, and the service life and the safety of the connector are reduced. Conventional connectors use waterproof plugs or sealing plugs to seal at the interface of the connector housing, while most waterproof plugs or sealing plugs are suitable for circular connectors and cannot be used on rectangular connectors.

As a small connector socket and plug with the patent number of CN200920205423.1 in the prior patent document, a socket outer film is disclosed to cover the socket inner mold and the socket framework; the front end of the socket framework is provided with a groove, and a waterproof ring is hooped in the groove. The waterproof ring in the existing connector is positioned between the outer membrane and the socket framework, and when leakage occurs between the outer membrane and the inner mould, the usability of the inner core wire is directly affected.

Disclosure of Invention

The utility model aims to solve the technical problems and provide a miniature rectangular power connector, so that an integral waterproof piece is arranged between an inner die and a connector for each core wire, and the sealing performance of the rectangular connector is improved. In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a miniature rectangular power connector, includes the connector, the tail end of connector is provided with an at least constant head tank, be provided with the waterproof piece that is used for sealed location a plurality of heart yearns in the constant head tank, waterproof piece is including a set of sealing strip of relative concatenation setting, the edge of sealing strip is provided with a plurality of arc mouths, and a set of sealing strip concatenation of relative makes a plurality of arc mouths form the round hole of holding heart yearn in groups one by one, the tail end of connector is pasted and is leaned on the centre form that is provided with injection moulding and cladding a plurality of heart yearns, the outside of centre form is provided with the tail end injection moulding's of butt joint connector external mold.

Specifically, the tail end of the connector is provided with two positioning grooves, and the two positioning grooves are arranged in parallel relatively.

Specifically, a group of sealing strips are elastically and tightly embedded into the positioning groove, and the sealing strips are made of rubber materials.

Specifically, the terminal surface of connector is provided with the socket, be provided with a plurality of slots in the socket, penetrate the terminal of connecting the heart yearn in the slot.

Specifically, the top of connector is provided with the boss, the both sides of boss interval respectively is provided with the shaping groove, the external mold is provided with the external mold mouth of cladding connector's tail end circumference, be provided with the bending portion that extends into the shaping groove on the external mold mouth.

Specifically, a plurality of heart yearns keep away from the position of connector and are provided with the pyrocondensation pipe.

Specifically, one end of the inner die is attached to the tail end of the connector, and the other end of the inner die tightens a plurality of core wires to be close to the heat shrinkage tube.

Specifically, the tail end of external die mouth one end cladding connector of external mold, the external mold is evenly suit shaping along the outward appearance structure of centre form, the other end of external mold extends to the transition department and cladding part pyrocondensation pipe of centre form and pyrocondensation pipe.

Compared with the prior art, the miniature rectangular power connector has the following main beneficial effects:

the tail part of the core wire is sleeved with the heat shrinkage pipe, so that a plurality of core wires are conveniently positioned in the inner die injection mold in a bundling way, the core wires are positioned in the mold, and the convenience of inner die injection molding is improved; the tail end of the connector is provided with a waterproof piece, the waterproof piece isolates the position of the core wire access terminal, and the sealing performance of the connector and core wire assembly is improved; the waterproof piece adopts a group of sealing strips with opposite clamping effect, round holes formed by the sealing strips can stably and hermetically position the core wire, so that the stability of the assembly position of the core wire is ensured, and meanwhile, the sealing strips are elastically embedded into the positioning grooves, so that the assembly is simple and quick; the outer parts of the core wires are injection molded into the inner mold, so that the sealing performance of the core wires and the tail ends of the connectors is ensured; the outer part of the inner mold is subjected to injection molding again to form an outer mold, and the outer mold does not need to be too thick under the condition of supporting the inner mold, so that the molding appearance quality of the outer mold is improved; the outer die is matched with the connector through a boss and a forming groove, the outer die forming structure is stable, and the sealing performance of the outer die and the tail end of the connector is ensured; the whole connector product can reach IP67 protection security level, and connector stable in structure possesses dustproof and waterproof performance.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal mold structure in the present embodiment;

FIG. 3 is a schematic view of the structure of the outer die in this embodiment;

FIG. 4 is a schematic view of the tail end structure of the connector according to the present embodiment;

fig. 5 is a schematic view of the waterproof member structure in the present embodiment;

fig. 6 is a schematic diagram of a jack of the connector in the present embodiment;

FIG. 7 is a schematic view in section A-A of FIG. 6;

the figures represent the numbers:

1 connector, 11 constant head tank, 12 terminal, 13 sockets, 14 slots, 15 boss, 2 heart yearns, 3 sealing strips, 31 arc mouth, 4 centre form, 5 external mold, 51 outer die mouth, 52 bending part, 6 pyrocondensation pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, but is apparent to those skilled in the art in view of the present utility model.

Examples:

referring to fig. 1-7, this embodiment is a miniature rectangular power connector, including a connector 1, the tail end of the connector 1 is provided with at least one positioning groove 11, be provided with in the positioning groove 11 and be used for sealing and positioning the waterproof piece of a plurality of heart yearns 2, waterproof piece includes a set of sealing strip 3 of relative concatenation setting, the edge of sealing strip 3 is provided with a plurality of arc mouths 31, a set of relative sealing strip 3 concatenation makes a plurality of arc mouths 31 form the round hole of holding heart yearns 2 one by one, the tail end of connector 1 is leaned on and is provided with injection moulding and coats the centre form 4 of a plurality of heart yearns 2, the outside of centre form 4 is provided with butt joint connector 1 injection moulding's external mold 5.

In this embodiment, two positioning slots 11 are disposed at the tail end of the connector 1, and the two positioning slots 11 are disposed in parallel. The sealing strips 3 are elastically and tightly embedded into the positioning grooves 11, the sealing strips 3 are made of rubber materials, and round holes formed by the sealing strips 3 are used for clamping and positioning the core wires 2 relatively, so that the core wires 2 stably penetrate through the round holes and are connected with the terminals 12 in the connector 1. The sealing strip 3 has the characteristics of sealing and insulation. The end face of the connector 1 is provided with a socket 13 for the electric butt-joint device as an access terminal. A plurality of slots 14 are arranged in the socket 13, and terminals 12 connected with the core wires 2 are penetrated into the slots 14.

The top of connector 1 is provided with boss 15, and the both sides of boss 15 interval respectively is provided with the shaping groove, and external mold 5 injection molding is provided with the external mold mouth 51 of cladding connector 1's tail end circumference, is provided with the bending portion 52 that extends into the shaping groove on the external mold mouth 51. The bending part 52 is a glue grabbing position in the injection molding process of the outer die 5, ensures the binding force of the outer die 5 and the connector 1, and improves the molding sealing performance of the outer die 5 and the connector 1.

The position that a plurality of heart yearns 2 kept away from connector 1 is provided with pyrocondensation pipe 6, and behind a plurality of heart yearns 2 cartridge connector 1, adopts contain the pyrocondensation pipe to shrink a plurality of heart yearns 2 cladding into cylindrical structure, contains its inside glue after the pyrocondensation pipe heating and fills the gap of a plurality of heart yearns 2 for a plurality of heart yearns 2 are held tightly firmly. Meanwhile, after the plurality of core wires 2 are bundled, the core wires are conveniently positioned in an inner mold injection mold, the inner mold injection mold adopts PE glue to form an inner mold, the fluidity of the PE glue is not strong, and the PE glue is prevented from being rushed into the connector 1 to be contacted with the terminal 12 in the glue injection process so as to influence the electrical performance.

One end of the injection molding of the inner mold 4 is attached to the tail end of the connector 1, and the other end of the injection molding tightens up a plurality of core wires 2 to be close to the heat shrinkage tube 6. The internal mold 4 enables the plurality of core wires 2 to have strong support, and ensures uniform molding wall thickness; at the same time, the sealing performance of the inner die 4 and the connector 1 is enhanced.

One end injection molding of external mold 5 is outer die orifice 51 and cladding connector 1's tail end, and external mold 5 is evenly suit shaping along the outward appearance structure of centre form 4, and the other end injection molding of external mold 5 extends to the transition department of centre form 4 and pyrocondensation pipe 6 and cladding part pyrocondensation pipe 6. The outer mold 5 completely covers the space structure between the connector 1 and the heat shrinkage tube 6 to form the protection of the outermost layer. Due to the existence of the inner mold 4, the outer mold 5 has good appearance quality in the injection molding process, the shrinkage and pit problems of the cavity are avoided, and meanwhile, the outer mold 5 seals and protects the connector 1 again, so that the sealing performance is improved.

When the embodiment is applied, a plurality of core wires 2 are connected with the terminal 12 in the connector 1, and the waterproof piece is embedded into the tail end of the connector 1 and positions the plurality of core wires 2; sleeving heat shrinkage tubes 6 at the tail parts of the core wires 2 to form bundles, and placing the connectors 1 with the assembled core wires 2 into an internal mold injection mold to perform internal mold 4 injection molding; and taking out the connector 1 with the assembled inner die 4, and placing the connector into an outer die injection mold for outer die injection molding.

In the embodiment, the tail part of the core wire 2 is sleeved with the heat shrinkage tube 6, so that a plurality of core wires 2 are conveniently positioned in an inner die injection mold in a bundle manner, the core wires 2 are positioned in the mold, and the convenience of injection molding of the inner die 4 is improved; the waterproof piece is arranged at the tail end of the connector 1 and isolates the position of the core wire 2 connected with the terminal 12, so that the assembly sealing performance of the connector 1 and the core wire 2 is improved; the waterproof piece adopts a group of sealing strips 3 with relative clamping effect, round holes formed by the sealing strips 3 can stably and hermetically position the core wire 2, so that the stability of the assembly position of the core wire 2 is ensured, and meanwhile, the sealing strips 3 are elastically embedded into the positioning grooves 11, so that the assembly is simple and quick; the outer parts of the core wires 2 are injection molded into the inner mold 4, so that the sealing performance of the core wires 2 and the tail ends of the connectors 1 is ensured; the outer part of the inner mold 4 is subjected to injection molding to form the outer mold 5 again, and under the condition that the inner mold 4 supports, the outer mold 5 does not need to be too thick, so that the molding appearance quality of the outer mold 5 is improved; the outer die 5 is matched with the connector 1 through the boss 15 and the forming groove, the forming structure of the outer die 5 is stable, and the sealing performance of the outer die 5 and the tail end of the connector 1 is ensured; the whole connector product can reach IP67 protection security level, and connector stable in structure possesses dustproof and waterproof performance.

In the description of the present specification, the term "particular embodiment" or "a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims

1. Miniature rectangular power connector, including the connector, its characterized in that: the tail end of connector is provided with at least one constant head tank, be provided with the waterproof piece that is used for sealed location a plurality of heart yearns in the constant head tank, waterproof piece is including a set of sealing strip that the relative concatenation set up, the edge of sealing strip is provided with a plurality of arc mouths, and a set of sealing strip concatenation that is relative makes a plurality of arc mouths form the round hole of holding heart yearn in groups one by one, the tail end of connector is leaned on the centre form that is provided with injection moulding and cladding a plurality of heart yearns, the outside of centre form is provided with the tail end injection moulding's of butt joint connector external mold.

2. The miniature rectangular power connector according to claim 1, wherein: the tail end of the connector is provided with two positioning grooves, and the two positioning grooves are oppositely arranged in parallel.

3. The miniature rectangular power connector according to claim 1, wherein: the sealing strips are elastically and tightly embedded into the positioning grooves, and are made of rubber materials.

4. The miniature rectangular power connector according to claim 1, wherein: the end face of the connector is provided with a socket, a plurality of slots are arranged in the socket, and terminals for connecting core wires penetrate into the slots.

5. The miniature rectangular power connector according to claim 1, wherein: the top of connector is provided with the boss, the both sides of boss interval respectively is provided with the shaping groove, the external mold is provided with the external mold mouth of cladding connector's tail end circumference, be provided with the portion of bending that extends into the shaping groove on the external mold mouth.

6. The miniature rectangular power connector according to claim 5, wherein: and a plurality of heat shrinkage tubes are arranged at positions of the core wires far away from the connectors.

7. The miniature rectangular power connector according to claim 6, wherein: one end of the inner die is attached to the tail end of the connector, and the other end of the inner die tightens a plurality of core wires to be close to the heat shrinkage tube.

8. The miniature rectangular power connector according to claim 6, wherein: the outer die is characterized in that one end of an outer die opening of the outer die is coated with the tail end of the connector, the outer die is uniformly sleeved and formed along the appearance structure of the inner die, and the other end of the outer die extends to the transition part of the inner die and the heat shrinkage tube and is coated with part of the heat shrinkage tube.