CN215299567U - Socket and small two-core high-voltage rectangular connector - Google Patents

Abstract

The utility model discloses a small-size two-core high pressure rectangular connector, including plug and socket, the plug includes plug base, install contact element component a on the plug base, contact element component a's one end is connected with the cable, contact element component a's the other end and contact element component b insert and close, the socket includes the casing, install socket base on the casing, install contact element component b in the socket base, the shoulder hole has been seted up on the casing, the shoulder hole is located one side of socket base, the explosive body is installed to the bottom of shoulder hole, the mid-mounting of shoulder hole has the electricity transfer detonator, the lead wire of electricity transfer detonator is connected with contact element component b, sealed through sealed glue at the top of shoulder hole. The electric transfer detonator, the explosive body and the high-voltage plug are integrated together, are fixed into a whole through a screw and epoxy glue, and are powered up through the high-voltage socket with the low-inductance coaxial cable, so that high-voltage ignition and detonation are realized, and miniaturization, low-inductance, low-impedance and high-reliability connection of a high-voltage connector in the detonation component is realized.

Description

Socket and small two-core high-voltage rectangular connector

Technical Field

The utility model relates to an electric primer detonator, especially small-size two-core high pressure rectangular connector.

Background

The electric detonating detonator adopts a high-voltage and large-current short-pulse ignition mode, the detonating power reaches megawatt level, and the energy can be rarely generated in nature, so that a high-voltage and large-current electric connector needs to be designed for matched ignition.

At present, the initiation assembly is widely applied to the civil blasting and military fields as a disposable power source, an integrated miniaturization design is the development direction of the product, and with the continuous development of the initiation assembly technology, new requirements are provided for the design and the processing of an electric energy adapter for ensuring the reliable work of the initiation assembly.

In the existing detonation component, a flat cable high-voltage rectangular electric connector is connected with a detonation device, and although the inductance of the flat cable of the high-voltage rectangular electric connector is small, the flat cable has the following defects: the flexibility is not enough, the bending radius is smaller, the cable is not suitable for occasions needing larger bending, and the width of the flat cable is generally wider for low inductance and is not suitable for special-shaped environments of installation spaces.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art's shortcoming, provide small-size two core high pressure rectangular connector.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a socket, includes the casing, installs the socket base on the casing, installs contact element assembly b in the socket base, has seted up the shoulder hole on the casing, and the shoulder hole is located one side of socket base, and the explosive body is installed to the bottom of shoulder hole, and the mid-mounting of shoulder hole has the electric detonator that explodes, and the lead wire of electric detonator that explodes is connected with contact element assembly b, and sealed through sealed glue in the top of shoulder hole.

Optionally, the sealant is epoxy glue.

Optionally, the stepped hole comprises a stepped small hole, a stepped middle hole and a stepped large hole, the stepped small hole is filled with the explosive body, the electric detonator is installed in the stepped middle hole through the locking screw, the lead is located in the stepped large hole, and the stepped large hole is encapsulated through the sealant.

The small two-core high-voltage rectangular connector comprises a plug and the socket, wherein the plug comprises a plug base, a contact component a is installed on the plug base, one end of the contact component a is connected with a cable, and the other end of the contact component a is inserted into a contact component b.

Optionally, an inserting cavity is formed in the plug base, two protruding columns are arranged in the inserting cavity at intervals, mounting holes are axially formed in the protruding columns, the contact element assembly a is located in the mounting holes, recesses corresponding to the protruding columns are formed in the inserting end of the socket base, the socket base is located in the inserting cavity after the contact element assembly a and the contact element assembly b are inserted and combined, and the protruding columns are located in the corresponding recesses.

Optionally, the socket base and the plug base are both made of PPS plastic.

The utility model has the advantages of it is following: the utility model discloses a small-size two-core high pressure rectangular connector is in the same place electric transmission blasting cap, explosive body, high-pressure plug integration, fixes into a whole through screw and epoxy glue, and the high-pressure socket of rethread area low inductance coaxial cable adds the electricity, realizes that high voltage ignition is detonating, has realized that high voltage connector is miniaturized in the detonating subassembly, low inductance, low impedance, high reliable connection.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

FIG. 2 is a schematic cross-sectional view of C-C in FIG. 1

FIG. 3 is a schematic view of a socket

FIG. 4 is a schematic cross-sectional view of A-A in FIG. 3

FIG. 5 is a schematic sectional view of B-B in FIG. 3

FIG. 6 is a schematic structural view of an electric detonator

FIG. 7 is a schematic view of the structure of the plug;

FIG. 8 is a schematic view of D-D of FIG. 7;

FIG. 9 is a schematic structural view of the stud;

FIG. 10 is a schematic view of a pocket structure;

in the figure, 100-plug, 200-plug, 101-plug base, 102-cable, 103-contact assembly a, 104-mating cavity, 105-boss, 201-housing, 202-plug base, 203-contact assembly b, 204-stepped hole, 205-electric detonator, 206-explosive body, 207-lead, 208-recess.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as 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 accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the small two-core high-voltage rectangular connector comprises a plug and a socket, in this embodiment, as shown in fig. 3 to 6, the socket comprises a housing, a socket base is mounted on the housing, a contact component b is mounted in the socket base, further, a mounting hole is axially formed in the socket base, when the contact component b is mounted, epoxy adhesive glue is coated on the outer surface of the contact component b, then the contact component b is mounted in the mounting hole of the socket base, and then high-temperature curing is performed.

In this embodiment, as shown in fig. 3, a stepped hole is formed in the housing, the stepped hole is located on one side of the socket base, a explosive body is installed at the bottom of the stepped hole, an electric detonator is installed in the middle of the stepped hole, a lead of the electric detonator is connected with the contact component b, the top of the stepped hole is sealed by a sealant, further, the stepped hole comprises a stepped small hole, a stepped middle hole and a stepped large hole, the explosive body is filled with the stepped small hole, the electric detonator is installed in the stepped middle hole by a locking screw, the lead is located in the stepped large hole, the stepped large hole is encapsulated by the sealant, the sealant is preferably epoxy glue, when the explosive body is installed in the stepped small hole, the electric detonator is then installed and fixed by a screw, specifically, a screw hole is formed at the bottom of the stepped large hole, through holes are formed in four corners of the electric detonator, and (3) putting the electric detonator into the hole in the step, aligning the through hole with the screw hole, finally locking the electric detonator by the screw, connecting the lead with the contact component b, finally filling epoxy glue into the large hole of the step, and curing at high temperature.

In this embodiment, as shown in fig. 7 and 8, the plug includes a plug base, a contact component a is mounted on the plug base, one end of the contact component a is connected with a cable, the other end of the contact component a is plugged into the contact component b, the cable is a low-inductance coaxial cable, after the cable is processed according to a prescribed process, the cable is welded with the contact component b, then the welded part is protected by a heat-shrinkable tube, when the contact component a is mounted, an adhesive is coated on the contact component a, the contact component a is mounted in the plug base, the contact component a is fixed by a special tool, and is cured at high temperature, after the high-temperature curing, whether the contact component a is mounted in place in the base is checked, and finally, a cavity at the tail of the plug base is encapsulated by epoxy glue.

In this embodiment, the connector must have sufficient dielectric strength for the connector to have a high voltage condition, and all lines from high potential to low potential or to ground must be an insulator, so the material chosen should be a high dielectric strength insulating material, however, due to various factors, it is impossible to fill the interior of the connector with a high dielectric strength insulating material everywhere, but there are larger or smaller electrical gaps, which is much lower than the dielectric strength of a solid insulator, which results in a higher field strength for the holes than for the insulating material, thus, at the nominal operating voltage of the connector, the voltage across the cavity may exceed the breakdown value and create a breakdown within the aperture, and therefore the best way to prevent air gap breakdown is to design the electrical connector without an air gap, secondly, a reasonable structure is designed in an effective volume, and the insulation distance and the creepage distance of the contact piece are improved as far as possible. However, the distance between the two pins of the electric detonator determines the center distance of two pairs of contact elements in the high-voltage connector to be 4mm, namely, the electric gap is fixed to be 3.2mm, if corresponding structural optimization is not adopted, the electric detonator cannot bear corresponding voltage action, the plugging interface can certainly not meet the requirement of the withstand voltage of 6kv according to the electric gap, a partition plate is required to be added between the contact elements to block the direct breakdown of air, after the partition plate is added, the creepage distance is increased, the minimum creepage distance and the sealing performance between the adjacent contact element and the shell are increased, the socket base and the plug base are both made of PPS plastic, under the condition of high voltage, the current creeps along the surface of the PPS base, the possibility of the air ionization breakdown is effectively avoided, the withstand voltage performance of the product is further improved, and further, as shown in FIG. 9 and FIG. 10, a plugging cavity is arranged on the plug base, the plug cavity is internally provided with two convex columns which are arranged at intervals, the convex columns are axially provided with mounting holes, the contact element assemblies a are positioned in the mounting holes, the plug end of the socket base is provided with concave cavities corresponding to the convex columns, after the contact element assemblies a and the contact element assemblies b are plugged, the socket base is positioned in the plug cavity, the convex columns are positioned in the corresponding concave cavities, the arrangement of the convex columns and the concave cavities increases the creepage distance of the connector, and the high-voltage performance of the connector is ensured.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. A socket, characterized in that: the socket comprises a housing, install the socket base on the casing, install contact element subassembly b in the socket base, the shoulder hole has been seted up on the casing, the shoulder hole is located one side of socket base, the explosive body is installed to the bottom of shoulder hole, the mid-mounting of shoulder hole has the electric shock detonator, the lead wire of electric shock detonator with contact element subassembly b is connected, sealed through sealed glue at the top of shoulder hole.

2. A socket according to claim 1, wherein: the sealant is epoxy glue.

3. A socket according to claim 2, wherein: the ladder hole includes ladder aperture, ladder mesopore and ladder macropore, the explosive body is filled up the ladder aperture, the electricity passes through the booster cap and installs through locking screw downthehole in the ladder, the lead wire is located in the ladder macropore, just the ladder macropore passes through sealed glue embedment.

4. Small-size two core high pressure rectangular connector, its characterized in that: the socket comprises a plug and the socket of any one of claims 1 to 3, wherein the plug comprises a plug base, a contact component a is mounted on the plug base, one end of the contact component a is connected with a cable, and the other end of the contact component a is plugged with the contact component b.

5. The miniature two-core high pressure rectangular connector of claim 4, wherein: the plug comprises a plug base and is characterized in that an inserting cavity is formed in the plug base, two convex columns arranged at intervals are arranged in the inserting cavity, mounting holes are axially formed in the convex columns, a contact element component a is located in the mounting holes, recesses corresponding to the convex columns are formed in the inserting end of the socket base, the socket base is located in the inserting cavity after the contact element component a and the contact element component b are inserted, and the convex columns are located in the corresponding recesses.

6. The miniature two-core high pressure rectangular connector of claim 5, wherein: the socket base and the plug base are both made of PPS plastic.

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