CN204668563U - Type low-voltage cable connector - Google Patents

Abstract

The utility model discloses a low-voltage cable connector, which comprises left and right housings connected as one, a plurality of pins and corresponding shrapnel sockets, and inner and outer upper layers are arranged between the connection surfaces of the left housing and the right housing Sealed structure, the cell cable is connected to the left and right housings respectively through the fixing seat, and a waterproof sealing ring is set between the connecting surfaces, and the fixing seat and the housing are firmly connected as a whole. It has simple structure, convenient and reliable insertion and connection, and is suitable for fast connection and quick separation of multi-core cables, and can effectively prevent water from seeping into the connector, prolong the service life, and improve the safety of use.

Description

Low voltage cable connector

technical field

The utility model relates to the technical field of low-voltage cable connection devices, in particular to a low-voltage cable connector with better waterproof effect.

Background technique

As one of the basic components of electrical connection, cable connectors are widely used in communications, computers, household appliances and other fields. Existing cable connections often rely on simple connections between pins and differential pins. The two ends of the connected cable are easy to loosen, and the waterproof effect is poor. The safety and reliability of the cable cannot be guaranteed.

Utility model content

The purpose of the utility model is to provide a low-voltage cable connector with simple structure, good connection reliability and safety.

The technical solution adopted by the utility model to solve the technical problem is: a low-voltage cable connector, including a left housing and a right housing connected as one, a plurality of pins and shrapnel jacks corresponding to the pins;

The mold cavity of the left housing is divided into three sections, and the inner diameter of the middle section is the smallest, and a tapered cavity is formed at the junction of the middle section and the right section, and the large end of the tapered cavity faces right;

An annular groove is arranged at the inner end of the tapered cavity of the left housing; an annular groove is arranged on the bottom surface of the right section of the cavity of the left housing, and a waterproof sealing ring is arranged in the annular groove;

A tapered boss is provided on the left end surface of the right housing, so that the maximum outer diameter of the tapered boss is smaller than the outer diameter of the left end surface of the right housing;

An annular groove is arranged in the middle of the tapered boss and a waterproof sealing ring is arranged in the annular groove;

The axial length of the tapered cavity is not less than the axial length of the tapered boss and the diameter of the right port of the tapered cavity is not smaller than the outer diameter of the right end of the tapered boss;

The left end of the right housing is placed in the right section of the mold cavity of the left housing so that the conical cavity contacts the conical boss, and at this time the annular groove on the conical cavity is in contact with the conical boss. The annular grooves on the shaped boss are partially intersected;

A fixing seat 1 is fixedly arranged on the left section of the mold cavity of the left housing, and a through hole for the pin to pass is arranged on the fixing seat 1; a slot is arranged on the outer end surface of the fixing seat 1, and the cable core After inserting the cable into the slot, use screws to securely connect the cable core to the fixing seat;

The right end of the pin extends into the right section of the cavity of the left housing, and the left end is connected to the cable core wire;

Fixing seat 2 is fixedly arranged on the left end of the right housing, and a through hole for the shrapnel jack to pass is set on the fixing seat 2; a slot is provided on the outer end surface of the fixing seat 2, and the cable core wire is inserted into the After the slot, use screws to securely connect the cable core wire to the second fixing seat;

The left end of the shrapnel jack extends to the left end of the cavity of the right housing, and the right end is connected to the cable core wire;

Between the cable core wire and the contact end surfaces of the corresponding fixing seat 1 and fixing seat 2, between the contacting end surfaces of the fixing seat 1 and the left housing, and between the contacting end surfaces of the fixing seat 2 and the right housing, respectively A waterproof sealing ring is provided.

After the right housing is inserted into the left housing, the pins are inserted into the insertion holes of the elastic sheets one by one. The specific way of fixing between the right housing and the left housing can be that the two are fixed together by screws, or can be fixedly connected by a surface pressing method. After the left and right shells are fixedly connected, an inner and outer double-layer sealing structure is formed between the contact surfaces between the two, and the annular groove on the tapered cavity partially intersects with the annular groove on the tapered boss, so the right When the casing is inserted into the right end of the left casing, the waterproof sealing ring will be deformed due to the extrusion force, and will be filled into the annular groove on the tapered cavity, so that no seal is formed between the contact surface of the tapered cavity and the tapered boss. Gaps for enhanced sealing. The cable core wires to be connected are plugged into the fixed seat 1 and the fixed seat 2 respectively, and the fixed seat 1 and the fixed seat 2 are respectively fixed in the left housing and the right housing, so the connected cable core wires are connected Not easy to loose, good waterproof effect, safe and reliable.

Further, an axial cylindrical boss is provided on the left end surface of the tapered boss at the left end of the right housing, and the outer diameter of the cylindrical boss is consistent with the inner diameter of the middle section of the cavity of the left housing. This is beneficial to increase the coaxiality of the connection between the left and right housings and ensure accurate connection between the pins and the corresponding elastic sockets.

Further, on the outer wall of the left housing corresponding to the right section of the cavity, a plurality of axially extending bar-shaped slots are evenly distributed along the circumference; on the outer wall of the right housing, corresponding to the bar-shaped slots are arranged Fixing column; after the right housing is inserted into the left housing, the fixing column is correspondingly embedded in a bar-shaped slot, and a washer nut is arranged on the top of the fixing column to connect the left housing and the right housing.

Further, the cable core wire is connected to the pin and the elastic sheet socket through the soldered part, and the fixed seat counterbore is provided on the fixed seat 1 and the fixed seat 2 for accommodating the soldered part.

The utility model has the advantages of simple structure, convenient and reliable insertion and connection, and is suitable for quick connection and quick separation of multi-core cables, and can effectively prevent water from seeping into the inside of the connector, prolong the service life, and improve the safety of use.

Description of drawings

Fig. 1 is the schematic diagram of the conjoined structure of the utility model;

Fig. 2 is the schematic diagram of the main view section structure of the split body of the present invention;

Fig. 3 is a top view structural schematic diagram of the left housing in the utility model;

Fig. 4 is a top view structural schematic diagram of the right housing in the utility model;

In the figure: 1 left housing, 11 fixing column, 12 conical boss, 2 right housing, 21 bar-shaped slot, 22 conical cavity, 3 fixed seat 1, 4 electric core cable, 5 pin, 6 Fixed seat two, 7 fixed seat counterbores, 8 shrapnel jacks, 91 waterproof sealing rings, 92 waterproof sealing rings.

Detailed ways

In order to facilitate the understanding of the technical content of the present utility model, the technical solution thereof will be further described below in conjunction with the accompanying drawings.

A low-voltage cable connector as shown in Figures 1 to 4:

It includes a left housing 1 and a right housing 2 connected as one, four pins 5 and shrapnel insertion holes 8 corresponding to the pins 5 .

The mold cavity of the left housing 1 is divided into three sections, and the inner diameter of the middle section is the smallest. A conical cavity 22 is formed at the junction of the middle section and the right section, and the large end of the conical cavity 22 faces right. An annular groove is provided at the inner end of the tapered cavity 22 of the left housing 1 . An annular groove is provided on the bottom surface of the right section of the cavity of the left casing 1, and a waterproof sealing ring 91 is arranged in the annular groove.

A conical boss 12 is provided on the left end surface of the right housing 2 , so that the maximum outer diameter of the conical boss 12 is smaller than the outer diameter of the left end surface of the right housing 2 . An annular groove is arranged in the middle of the tapered boss 12 and a waterproof sealing ring 92 is arranged in the annular groove.

The axial length of the tapered chamber 22 on the left housing 1 is equal to the axial length of the tapered boss 12 on the right housing 2 and the right port diameter of the tapered chamber 22 is larger than the tapered boss 12 right-hand outer diameter.

The left end of the right housing 2 is placed in the right section of the cavity of the left housing 1 so that the tapered cavity 22 is in contact with the tapered boss 12. At this time, the annular ring on the tapered cavity 22 The groove partially intersects the annular groove on the tapered boss 12 .

A fixing seat 3 is fixedly arranged on the left section of the mold cavity of the left housing 1 , and a through hole for the insertion pin 5 is provided on the fixing seat 3 . A slot is provided on the end surface of the outer 3 of the fixing seat 1, and the cable core wire 4 is fixedly connected with the fixing seat 1 3 with screws after the cable core wire 4 is inserted into the slot. The right end of the pin 5 extends into the right section of the cavity of the left housing 1 , and the left end is connected to the cable core wire 4 .

On the left end of the right housing 2, a second fixing seat 6 is fixedly arranged, and a through hole through which the elastic piece insertion hole 8 passes is arranged on the second fixing seat 6. A slot is arranged on the outer end surface of the second fixing seat 6, and the cable core wire 4 is fixedly connected with the second fixing seat 6 with screws after the cable core wire 4 is inserted into the slot. The left end of the shrapnel insertion hole 8 extends to the left end of the mold cavity of the right housing 2 , and the right end is connected to the cable core wire 4 .

The cable core wire 4 is connected to the pin 5 and the shrapnel socket 8 through the soldering part, and the fixing seat counterbore 7 is provided on the fixing seat 1 3 and the fixing seat 2 6 to accommodate the soldering part .

Between the cable core wire 4 and the contact end faces of the corresponding fixing seat 3 and the fixing seat 2 6, between the contacting end faces of the fixing seat 3 and the left housing 1, the fixing seat 2 6 and the right housing 2 Waterproof sealing rings are respectively arranged between the contact end faces.

After the right housing 2 is inserted into the left housing 1 , the pins 5 are inserted into the elastic sheet insertion holes 8 one by one. The specific fixing method between the right housing 2 and the left housing 1 can be fixed as a whole by screws, or the two can be fixed as a whole by means of profile pressing. As shown in the figure, a plurality of axially extending bar-shaped slots 21 are evenly distributed along the circumference on the outer wall of the left housing 1 corresponding to the right section of the cavity. A fixing post 11 is provided on the outer wall of the right housing 2 corresponding to the bar-shaped slot 21 . After the right housing 2 is inserted into the left housing 1, the fixing column 11 is correspondingly embedded in the bar-shaped slot 21, and a washer nut is arranged on the top of the fixing column 11 to connect the left housing 1 and the right housing. 2 connections.

After the left housing 1 and the right housing 2 are fixedly connected, an inner and outer double-layer sealing structure is formed between the contact surfaces between the two, and the annular groove 22 on the tapered cavity and the annular groove part on the tapered boss 12 cross, so when the right housing 2 is inserted into the right end of the left housing 1, the waterproof sealing ring 92 will be deformed due to the extrusion force, and fill in the annular groove on the tapered cavity 22, so that the tapered cavity 22 and the No gap is formed between the contact surfaces of the tapered bosses 12, which enhances the sealing performance. The cable core wires 4 to be connected are correspondingly plugged into the first fixing seat 3 and the second fixing seat 5, and the first fixing seat 3 and the second fixing seat 6 are respectively fixed in the left housing 1 and the right housing 2, so The joint of the cable core wire 4 after connection is not easy to loosen, has good waterproof effect, and is safe and reliable.

An axial cylindrical boss is arranged on the left end face of the tapered boss at the left end of the right housing 2 , and the outer diameter of the cylindrical boss is consistent with the inner diameter of the middle section of the cavity of the left housing 1 . This is beneficial to increase the coaxiality of the connection between the left housing 1 and the right housing 2 , and ensure accurate connection between the pins 5 and the corresponding elastic sockets 8 .

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (5)

1. a type low-voltage cable connector, is characterized in that:

Comprise the left shell and right shell body, many contact pins and the shell fragment jack corresponding with contact pin that connect as one;

The die cavity of described left shell is divided into three sections and the internal diameter of interlude is minimum, the interlude of left shell die cavity and right section of joining place form conical cavity and the large end of this conical cavity towards the right side;

In conical cavity the inner of described left shell, cannelure is set; Annular groove is set in right section of bottom surface of described left shell die cavity, and waterproof seal ring is set in this annular groove;

Establish cone boss in the left side of described right shell body, make the maximum outside diameter of described cone boss be less than described right shell body left side external diameter;

Cannelure is set at the middle part of described cone boss and waterproof grommet is set in this cannelure;

The axial length of described conical cavity is not less than the axial length of described cone boss and the right output port diameter of described conical cavity is not less than the right-hand member external diameter of described cone boss;

In right section of the die cavity that the left end of described right shell body is placed in described left shell, described conical cavity is contacted with described cone boss, the cannelure now on described conical cavity intersects with the annular groove portion on described cone boss;

Be fixedly installed holder one left section of the die cavity of described left shell, holder one established the through hole passed for contact pin; Establish slot in the outer face of holder one, with screw, cable core and holder one are connected after cable core inserts this slot;

The right-hand member of described contact pin extends in right section of left shell die cavity, left end stube cable heart yearn;

Be fixedly installed holder two at the left end of described right shell body, holder two established the through hole passed for described shell fragment jack; Establish slot in the outer face of holder two, with screw, cable core and holder two are connected after cable core inserts this slot;

The left end of described shell fragment jack extends to the die cavity left end of described right shell body, right-hand member stube cable heart yearn;

Between the contact end face of the described cable core holder one corresponding with it, holder two, between the contact end face of holder one and left shell, between the contact end face of holder two and right shell body, be respectively arranged with waterproof seal ring.

2. type low-voltage cable connector according to claim 1, is characterized in that: arrange axial column-shaped boss in the left side of described right shell body left end cone boss, and the external diameter of described column-shaped boss is consistent with the interlude internal diameter of described left shell die cavity.

3. type low-voltage cable connector according to claim 1 and 2, is characterized in that: the outer wall corresponding to right section of its die cavity at described left shell circumferentially uniformly arranges multiple axially extended bar shaped slot; On the outer wall of described right shell body, corresponding described bar shaped slot arranges fixed leg; After described right shell body is inserted described left shell, described fixed leg correspondence embeds in bar shaped slot, arranges pad nut be connected with right shell body by left shell on the top of fixed leg.

4. type low-voltage cable connector according to claim 1 and 2, is characterized in that: described cable core is connected by tin welding portion with contact pin and shell fragment jack, and described holder one and described holder two all arrange holder counterbore, is used for holding tin welding portion.

5. type low-voltage cable connector according to claim 4, is characterized in that: the outer wall corresponding to right section of its die cavity at described left shell circumferentially uniformly arranges multiple axially extended bar shaped slot; On the outer wall of described right shell body, corresponding described bar shaped slot arranges fixed leg; After described right shell body is inserted described left shell, described fixed leg correspondence embeds in bar shaped slot, arranges pad nut be connected with right shell body by left shell on the top of fixed leg.