CN-224217730-U - Terminal, female connector and electric connection device

CN224217730UCN 224217730 UCN224217730 UCN 224217730UCN-224217730-U

Abstract

The application provides a terminal, a female connector and an electric connection device. The terminal is used for being connected with the fixed seat and the floating seat respectively, and comprises a welding part, a first fixing part, a floating part, a second fixing part, a reverse-folding elastic arm and a contact part which are connected in sequence, wherein the first fixing part is used for being fixed on the fixed seat, the second fixing part is used for being fixed on the floating seat, and the distance between the reverse-folding elastic arm and the welding surface of the welding part is smaller than that between the second fixing part and the welding surface. Because the second fixing part is fixed on the floating seat, the contact part is pressed to drive the reverse-folding elastic arm to deform after the female connector and the male connector are matched in an opposite way, the distance between the welding surface of the reverse-folding elastic arm and the welding part is smaller than that between the second fixing part and the welding surface, the length of the reverse-folding elastic arm is prolonged, and particularly for a floating connector with a compact space, the fatigue of the elastic arm caused by compression after the female connector and the male connector are matched in an opposite way is avoided, and the matching contact reliability of the electric connector device is further improved.

Inventors

CHEN ZHILIN
WANG XU
WANG JIAN
ZHANG ZIMENG
WANG JUN

Assignees

上海航天科工电器研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20250429

Claims (10)

1. The terminal is used for being connected to the fixed seat and the floating seat respectively and is characterized by comprising a welding part, a first fixing part, a floating part, a second fixing part, a reverse-folding elastic arm and a contact part which are connected in sequence; The first fixing part is used for being fixedly held on the fixing seat; the second fixing part is used for being fixedly held on the floating seat, and the floating part is used for being arranged between the floating seat and the fixing seat; The distance between the reverse-folded elastic arm and the welding surface of the welding part is smaller than that between the second fixing part and the welding surface.
2. The terminal of claim 1, wherein a distance between the holding position of the first fixing portion and the soldering surface is smaller than a distance between the holding position of the second fixing portion and the soldering surface.
3. The terminal of claim 2, wherein the distance between the folded-back elastic arm and the welding surface is smaller than the distance between the holding position of the first fixing portion and the welding surface, the distance between the folded-back elastic arm and the welding surface is equal to the distance between the lowest end of the folded-back elastic arm and the welding surface, and/or, The lowest end of the reverse-folded elastic arm is higher than the welding surface.
4. The terminal of claim 1, wherein the folded-back elastic arm comprises an extension part, an elastic arm body and a folded-back part which are sequentially connected, the extension part is connected to the second fixing part, the extension part extends towards the direction of the second fixing part close to the welding surface, and the end part of the folded-back part, which is far away from the elastic arm body, is connected to the contact part; The distance between the reverse bending elastic arm and the welding surface is equal to the distance between the bending protrusion of the elastic arm body and the welding surface.
5. The terminal of claim 4, wherein the connection of the first end of the spring arm body to the extension forms an angle of 180 degrees, and/or, The second end of the elastic arm body is connected with the reverse folding part to form an included angle of 100-150 degrees.
6. The terminal of claim 1, further comprising a guide portion connected to an end of the contact portion remote from the return spring arm, the end of the guide portion remote from the contact portion being less distant from the second securing portion than an end of the guide portion adjacent the contact portion.
7. The terminal of claim 4, wherein the contact portion is of a bent structure, the contact portion is bent to protrude toward a side away from the second fixing portion to form a contact area of the contact portion, and/or, The included angle formed by connecting the reverse folding part and the contact part is 150-175 degrees.
8. The terminal according to any one of claims 1 to 7, wherein the contact area of the contact portion is located between the holding position of the first fixing portion and the holding position of the second fixing portion, and/or, The terminal is of an integrated structure.
9. A female connector comprising a fixed base, a floating base and the terminal of any one of claims 1 to 8; The floating seat is positioned in the accommodating cavity and floats relative to the fixed seat, the fixed seat is provided with a first clamping hole, the first fixing part is positioned in the first clamping hole and is fixedly held in the fixed seat, the floating seat is provided with a second clamping hole, the second fixing part is positioned in the second clamping hole and is fixedly held in the floating seat, and the floating part is arranged between the floating seat and the fixed seat and is supported by the floating seat; The floating seat is provided with a penetrating hole and an opposite inserting hole which are communicated, the reverse-folding elastic arm is penetrated in the penetrating hole, and the contact part is positioned in the opposite inserting hole.
10. An electrical connection device comprising the female connector of claim 9.

Description

Terminal, female connector and electric connection device Technical Field The present application relates to the field of electrical connectors, and more particularly, to a terminal, a female connector, and an electrical connection device. Background The electric connection device comprises a female connector and a male connector, wherein the female connector is connected with the male connector in a plug-in mode. For a floating connection scene, the female connector and the male connector allow displacement or dislocation compensation within a preset range in the connection process, so that the requirement on installation precision is reduced, and the reliability of the system under vibration, thermal expansion or mechanical stress is improved. However, the elastic arm of the related art electrical connection device is fatigued due to compression after the female connector and the male connector are mated, such as CN104347993B, so that the reliability of the mating contact of the electrical connector device is poor. Disclosure of utility model The application aims to overcome the defects in the prior art and provide a terminal, a female connector and an electric connection device with better mutual matching contact reliability. The aim of the application is realized by the following technical scheme: The terminal is used for being connected to the fixed seat and the floating seat respectively and comprises a welding part, a first fixing part, a floating part, a second fixing part, a reverse elastic arm and a contact part which are connected in sequence; The first fixing part is used for being fixedly held on the fixing seat; the second fixing part is used for being fixedly held on the floating seat, and the floating part is used for being arranged between the floating seat and the fixing seat; The distance between the reverse-folded elastic arm and the welding surface of the welding part is smaller than that between the second fixing part and the welding surface. In one embodiment, the distance between the holding position of the first fixing portion and the welding surface is smaller than the distance between the holding position of the second fixing portion and the welding surface. In one embodiment, the distance between the folded-back elastic arm and the welding surface is smaller than the distance between the holding position of the first fixing part and the welding surface, the distance between the folded-back elastic arm and the welding surface is equal to the distance between the lowest end of the folded-back elastic arm and the welding surface, and/or, The lowest end of the reverse-folded elastic arm is higher than the welding surface. In one embodiment, the folded elastic arm comprises an extension part, an elastic arm body and a folded part which are sequentially connected, wherein the extension part is connected with the second fixing part, the extension part extends towards the direction of the second fixing part, which is close to the welding surface, and the end part of the folded part, which is far away from the elastic arm body, is connected with the contact part; The distance between the reverse bending elastic arm and the welding surface is equal to the distance between the bending protrusion of the elastic arm body and the welding surface. In one embodiment, the first end of the elastic arm body and the extension portion are connected to form an included angle of 180 degrees, and/or, The second end of the elastic arm body is connected with the reverse folding part to form an included angle of 100-150 degrees. In one embodiment, the terminal further includes a guide portion connected to an end of the contact portion remote from the folded-back elastic arm, and a distance between the end of the guide portion remote from the contact portion and the second fixing portion is smaller than a distance between an end of the guide portion adjacent to the contact portion and the second fixing portion. In one embodiment, the contact part is a bending structure, the contact part is bent and raised towards one side far away from the second fixing part to form a contact area of the contact part, and/or, The included angle formed by connecting the reverse folding part and the contact part is 150-175 degrees. In one embodiment, the contact area of the contact portion is located between the holding position of the first fixing portion and the holding position of the second fixing portion, and/or, The terminal is of an integrated structure. A female connector comprises a fixed seat, a floating seat and a terminal of any embodiment; The floating seat is positioned in the accommodating cavity and floats relative to the fixed seat, the fixed seat is provided with a first clamping hole, the first fixing part is positioned in the first clamping hole and is fixedly held in the fixed seat, the floating seat is provided with a second clamping hole, the second fixing part is positioned in the second clamping hole