CN106877065B

CN106877065B - Dustproof cover structure of connector

Info

Publication number: CN106877065B
Application number: CN201710058141.2A
Authority: CN
Inventors: 叶超; 姜伟清; 张小刚
Original assignee: Suzhou Fengnian Technology Co ltd
Current assignee: Suzhou Fengnian Technology Co ltd
Priority date: 2017-01-23
Filing date: 2017-01-23
Publication date: 2023-09-12
Anticipated expiration: 2037-01-23
Also published as: CN106877065A

Abstract

The invention discloses a dust cover structure of a connector, which is characterized in that: the circuit protection device comprises a cover body and a circuit protection device arranged in the cover body, wherein one end of the cover body is provided with an opening, a cavity for accommodating a male end or a female end of a connector is formed in the middle of the cover body, the circuit protection device comprises a rubber core, one side of the rubber core is provided with a positive contact terminal and a negative contact terminal connected with the male end or the female end of the connector, the other side of the rubber core is provided with an arc-preventing resistor, and the arc-preventing resistor is connected between the positive contact terminal and the negative contact terminal in series. The invention realizes the protection of the contact of the external connector by combining the cover body and the circuit protection device, and improves the use safety.

Description

Dustproof cover structure of connector

Technical Field

The present disclosure relates to cable connectors, and particularly to a dust cap structure of a connector.

Background

Along with the continuous innovation and progress of technology, people have a more and more intimate relationship with electronic technology products in every aspect of life, and the connector is a common accessory in electronic products. When the connector is in a non-use state, the male end or the female end of the connector is exposed, especially when the connector is applied to agricultural machinery, production and processing enterprises or outdoor equipment, dust and rainwater easily enter the connector and adhere to the contact piece to cause the connector to fail or poor contact, short circuit or open circuit occurs, and the internal circuit of the equipment is damaged when serious.

In addition, dust, rainwater and the like can enter the connector to damage the connector, and an arc can be generated, when the current is disconnected, if the voltage of the circuit is not lower than 10-20V, the current is not lower than 80-100mA, the arc can be generated between contacts of the electric appliance, and the arc is free gas with high temperature and high conductivity, so that the arc has a great damage effect on the contacts, and the circuit disconnection time is prolonged.

Therefore, how to solve the above-mentioned problems of exposure and arcing of the contact terminals (contacts) is the direction that current connector designers should study.

Disclosure of Invention

The invention aims to provide a dust cover structure of a connector, which can protect an exposed contact terminal (contact) from being polluted, effectively avoid the harm of electric arcs, improve the use safety of the connector and prolong the service life.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a shield structure of connector, includes the lid and sets up in the circuit protection device in the lid, lid one end opening is equipped with the cavity that holds the public end of connector or female end in the middle, circuit protection device includes glues the core, should glue core one side be equipped with the public end of connector or female end terminal connection's positive, negative contact terminal, glue core opposite side is equipped with one and prevents electric arc resistance, should prevent electric arc resistance and establish ties between positive, negative contact terminal.

In the above technical scheme, the lid cavity is divided into a first cavity for accommodating the male end or the female end of the connector, and a second cavity for accommodating the circuit protection device, a limiting groove is arranged in the second cavity, and a convex rib matched with the limiting groove is arranged on the rubber core.

The further technical scheme is that the convex rib is arranged on one side face of the rubber core, and extends from the contact terminal side to the arc-proof resistor side to form the foolproof convex rib.

In the technical scheme, the resistance of the arc-proof resistor is not less than 10KΩ, a groove is arranged on the rubber core, the arc-proof resistor is arranged in the groove, and pins at two ends are electrically connected with the positive contact terminal and the negative contact terminal.

In the above technical scheme, the two sides of the cover body are respectively provided with an elastic claw or a jack which is in plug-in fit with the male end or the female end of the connector.

In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a shield structure of female end of connector, includes the lid and sets up in the circuit protection device in the lid, lid one end opening is equipped with the cavity that holds female end in the middle, circuit protection device includes glues the core, should glue core one side be equipped with female end terminal connection's positive, negative contact terminal, glue the core opposite side and be equipped with one and prevent electric arc resistance, should prevent electric arc resistance and establish ties between positive, negative contact terminal, prevent electric arc resistance's resistance is not less than 10KΩ.

In the above technical scheme, the lid cavity divide into and holds female end's first cavity, and hold circuit protection device's second cavity, be equipped with a spacing groove in the second cavity, be equipped with on the gum core with this spacing groove complex protruding muscle, be equipped with the recess on the gum core, arc resistance sets up in this recess, and both ends pin is connected with positive, negative contact terminal electricity.

In a further technical scheme, the convex rib is arranged on one side surface of the rubber core, and extends from the contact terminal side to the arc-proof resistor side to form the foolproof convex rib.

In a further technical scheme, the female end is provided with a foolproof groove, and a guide convex rib matched with the foolproof groove is arranged in the first cavity.

In the above technical scheme, the lid both sides are equipped with the jack respectively, be equipped with on the female end with this jack grafting complex elasticity jack catch, both grafting cooperations.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. the invention comprises a cover body and a circuit protection device arranged in the cover body, wherein the cover body is used for conducting dust-proof and waterproof protection on the male end or the female end of the exposed connector to protect the exposed contact piece, and meanwhile, the arc-proof resistor in the circuit protection device is used for isolating the positive electrode and the negative electrode by using high-resistance resistors, so that the generation of an arc can be prevented, and the use safety of the connector and the connecting equipment is ensured;

2. the gum core is provided with the fool-proof convex rib, and the limiting groove is arranged in the second cavity of the cover body and matched with the second cavity of the cover body, so that the convex rib can be used as a guide bar when the cover body is covered on one hand, and on the other hand, the assembly is convenient, and the polarity plugging error is prevented.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present invention;

FIG. 2 is an enlarged top view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a first embodiment of the invention;

FIG. 4 is a schematic view of a cover according to an embodiment of the invention;

FIG. 5 is a schematic view of a first embodiment of the present invention assembled with a female terminal;

fig. 6 is a schematic structural diagram of an assembly of a protection circuit device and a female terminal according to a first embodiment of the present invention.

Wherein: 1. a cover body; 2. a circuit protection device; 3. a rubber core; 4. a contact terminal; 5. an arc protection resistor; 6. a female end; 7. a first chamber; 8. a second chamber; 9. a limit groove; 10. convex ribs; 11. fool-proof grooves; 12. guiding the convex ribs; 13. a jack; 14. and an elastic claw.

Detailed Description

The invention is further described below with reference to the accompanying drawings and examples:

embodiment one: referring to fig. 1-6, a dust cover structure of a connector comprises a cover body 1 and a circuit protection device 2 arranged in the cover body 1, wherein one end of the cover body 1 is opened, a cavity for accommodating a male end or a female end of the connector is arranged in the middle of the cover body, the circuit protection device 2 comprises a rubber core 3, one side of the rubber core 3 is provided with a positive contact terminal 4 and a negative contact terminal 4 connected with a male end or a female end terminal of the connector, the other side of the rubber core 3 is provided with an arc resistance 5, the arc resistance 5 is connected between the positive contact terminal 4 and the negative contact terminal 4 in series, and the resistance value is 10kΩ.

In this embodiment, the dustproof cover structure of the female end 6 of the connector is characterized in that the cavity of the cover body 1 is divided into a first cavity 7 for accommodating the female end 6 and a second cavity 8 for accommodating the circuit protection device 2, a limit groove 9 is arranged in the second cavity 8, a convex rib 10 matched with the limit groove 9 is arranged on the rubber core 3, a groove is arranged on the rubber core 3, the arc-preventing resistor 5 is arranged in the groove, and pins at two ends are electrically connected with the positive contact terminal 4 and the negative contact terminal 4.

As shown in fig. 5 and 6, the rib 10 is disposed on one side surface of the rubber core 3, and extends from the contact terminal 4 side to the arc-proof resistor 5 side, so as to form a foolproof rib. The fool-proof protruding ribs can prevent the positive contact terminal 4 and the negative contact terminal 4 on the rubber core from being wrongly inserted, and can be used as the guide for covering the cover body 1 and the support for the rubber core 3 in the second cavity 8.

As shown in fig. 5, the female end 6 is provided with a fool-proof groove 11, and the first chamber 7 is provided with a guiding rib 12 matched with the fool-proof groove 11, as shown in fig. 2.

As shown in fig. 5 and 6, two sides of the cover body 1 are respectively provided with an inserting hole 13, and the female end 6 is provided with an elastic claw 14 which is in inserting fit with the inserting hole 13, and the two elastic claws are in inserting fit.

When in use, the positive and negative contact terminals 4 on the circuit protection device 2 are inserted into the contact jacks on the female end 6 in alignment, as shown in fig. 5, and then the cover body 1 is covered on the female end 6, so that the elastic claws 14 on the female end 6 are inserted into the jacks 13 on both sides of the cover body 1, thereby completing the assembly.

Claims

1. A dust cover structure of a connector is characterized in that: the circuit protection device comprises a rubber core, wherein one side of the rubber core is provided with a positive contact terminal and a negative contact terminal which are connected with a male end terminal or a female end terminal of the connector, the other side of the rubber core is provided with an arc-preventing resistor, and the arc-preventing resistor is connected between the positive contact terminal and the negative contact terminal in series;

the cover body cavity is divided into a first cavity for accommodating the male end or the female end of the connector and a second cavity for accommodating the circuit protection device, a limiting groove is arranged in the second cavity, and a convex rib matched with the limiting groove is arranged on the rubber core; the convex rib is arranged on one side surface of the rubber core, and extends from the contact terminal side to the arc-proof resistor side to form a foolproof convex rib;

the rubber core is provided with a groove, the arc-proof resistor is arranged in the groove, and pins at two ends are electrically connected with the positive contact terminal and the negative contact terminal.

2. The dust cover structure of the connector according to claim 1, wherein: the resistance value of the arc-proof resistor is not less than 10KΩ.

3. The dust cover structure of the connector according to claim 1, wherein: elastic clamping claws or jacks which are in plug-in fit with the male end or the female end of the connector are respectively arranged on two sides of the cover body.