CN2606467Y

CN2606467Y - Gas-tight connector

Info

Publication number: CN2606467Y
Application number: CN 03232926
Authority: CN
Inventors: 范国君
Original assignee: Chengdu Hongming Electronics Co Ltd
Current assignee: Chengdu Hongming Electronics Co Ltd
Priority date: 2003-01-21
Filing date: 2003-01-21
Publication date: 2004-03-10
Anticipated expiration: 2013-01-21

Abstract

A gas-tight connector comprises a plurality of contact pins fixed on a fixing plate 1 and encased in a shell 3, wherein, two sides of the fixing plate 1 are sealed with epoxy resin 4 and sealing gum 5; a front rubber pad 6 is arranged on the upper part while a back rubber pad 7 arranged on the lower part. The installation size of the gas-tight connector is completely consistent with the common connectors, and can realize butt joint with the common connectors. The utility model adopts a copper casting shell plated with cadmium and passivated, and is better in electrical and mechanical performance, and adopts a laser mark, which is clear and beautiful. The utility model is mainly used in the military products requiring air tightness and salt fog prevention and having special regulations to pins (such as grounding requirement) as well as the situations requiring high reliability.

Description

The airproof connector

Technical field: the utility model relates to connector in the electronic connector, relates in particular to the airproof connector.

Background technology: the connector of common DB model adopts two insulation boards with contact pin or jack location, with the fixing mode of metal shell.Because the restriction of structure can't seal, let alone air-tightness.Such connector can not satisfy the requirement of military use product to waterproof.

Summary of the invention: the purpose of this utility model is to overcome the shortcoming that prior art does not have waterproof measure, and a kind of airproof connector that can waterproof is provided.

The internal structure of airproof connector as shown in Figure 3.The airproof connector comprises: many contact pins 2 are fixed on the fixed head 1, in the shell 3 of packing into, epoxy resin 4 and fluid sealant 5 sealings are arranged in the both sides of fixed head 1, and preceding rubber cushion 6 is installed in top, and back rubber cushion 7 is installed in the bottom.

Advantage: the common connector of airproof connector installation dimension and common DB25 (P) model is in full accord, can achieve a butt joint with the common connector of DB25 (S) model.

The airproof connector adopts casting in bronze to make shell, and shell cadmium plating passivation is electric better with mechanical performance.Product adopts laser mark, and is clear attractive in appearance.Be mainly used in and require air-tightness, anti-salt fog, pin is had the military use product of particular provisions (if any grounding requirement) and highly reliable occasion.Specifeca tion speeification

Rated operational voltage: 300V _DC

Rated current: 3A

Insulation resistance: 〉=5000M Ω

Contact resistance :≤0.01 Ω

Matching: smooth and easy insertion DB25 core socket

Dielectric strength: direct current 1000V, 1min, flicker free, arcing

Ground capacitance :≤5PF

Plug number of times:＞500 times

Airproof connector air-tightness characteristics: the airproof connector is fixed on the airtight capsule, injects the air of 196kPa in the box, and capsule is put into the water of cleaning together with the airproof connector, and no bubble is overflowed from the airproof connector in 5 seconds.The environment for use condition:

Temperature range :-55～125 ℃

Relative humidity :+40 ℃ reach 93 ± 3%

Low pressure: 4.4kPa

Description of drawings:

Fig. 1: airproof connector vertical view.

Fig. 2: airproof connector upward view.

Fig. 3: airproof connector cut-away view.

Fig. 4: preceding rubber cushion 6 structure charts among Fig. 3.

Fig. 5: back rubber cushion 7 structure charts among Fig. 3.

Embodiment:

Described airproof connector, shell is made in the casting in bronze that shell 3 adopts.

Preceding rubber cushion 6 and back rubber cushion 7 are oil-resistant rubber slab.

Operation principle: the airproof connector makes the sealing of airproof connector because epoxy resin 4 and fluid sealant 5 are arranged, and can not make moist, and air-tightness is arranged, the energy waterproof, and make contact pin 2 and fixed head 1 fixation loosening.

For satisfying the requirement of different user, the only difference slightly on outer cover height that has, identical as performance, outer cover height is 16.8mm, the model of the closed type connector of no grounding leg is DB25 (P)/L-2 etc.The contour structures of DB25 (P)/L-1 model airproof connector as shown in Figure 1.

Claims

1, airproof connector, it is characterized in that: many contact pins (2) be fixed on fixed head 1 (on), in the shell of packing into (3), have in the both sides of fixed head (1) epoxy resin (4) and fluid sealant (5) sealing, preceding rubber cushion (6) is installed in top, and back rubber cushion (7) is installed in the bottom.

2, according to the described airproof connector of claim 1, it is characterized in that: shell (3) adopts casting in bronze to make shell.

3, according to the described airproof connector of claim 1, it is characterized in that: preceding rubber cushion (6) and back rubber cushion (7) are oil-resistant rubber slab.