CN212587760U

CN212587760U - Elastic contact piece for high-speed connector

Info

Publication number: CN212587760U
Application number: CN202021000291.1U
Authority: CN
Inventors: 肖顺群
Original assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Current assignee: Shanghai Aerospace Science and Industry Appliance Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-02-23
Anticipated expiration: 2030-06-04

Abstract

An elastic contact piece for a high-speed connector comprises a fixed main board, wherein a contact main body axially extends from the end part of the fixed main board, the contact main body comprises side elastic pieces and a middle elastic piece, the middle elastic piece is embedded into the side elastic pieces at intervals, the side elastic pieces and the middle elastic piece are both positioned at the end part of the contact main body, and the side elastic pieces, the middle elastic pieces and the fixed main board are all positioned at the same axial center line; the side elastic sheet is bent inwards to form a protrusion with a contact point A, and the middle elastic sheet is bent inwards to form a protrusion with a contact point B; the utility model discloses newly increase contact point B under the unchangeable prerequisite of original contact point A to contact point B highly is less than contact point A, can effectual reduction Stup length, can reduce original Stup length LA into Stup length LB, and then improves the signal transmission rate of contact piece.

Description

Elastic contact piece for high-speed connector

Technical Field

The utility model belongs to the technical field of high-speed interconnection, in particular to insert the elasticity contact piece that closes high-speed connector of interconnection with golden finger used.

Background

The structure of the elastic contact piece in the high-speed connector is shown in fig. 8, the elastic contact piece is provided with a convex contact point a, the matching structure of the elastic contact piece and the connector is shown in fig. 9, the distance between the contact point a and the bottom end of the connector is LA, and the Stup length (the shortest contact distance of serial communication) between the elastic contact piece and the connector is LA due to the lack of other contact points, so that the Stup length is longer, and the signal transmission rate of the elastic contact piece is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the not enough of prior art existence, provide a high-speed elastic contact piece for connector, concrete technical scheme as follows:

an elastic contact piece for a high-speed connector comprises a fixed main board, wherein a contact main body axially extends from the end part of the fixed main board, the contact main body comprises side elastic pieces and a middle elastic piece, the middle elastic piece is embedded into the side elastic pieces at intervals, the side elastic pieces and the middle elastic piece are both positioned at the end part of the contact main body, and the side elastic pieces, the middle elastic pieces and the fixed main board are all positioned at the same axial center line;

the contact point A is formed by inwards bending and protruding the side elastic sheet, the contact point B is formed by inwards bending and protruding the middle elastic sheet, the distance between the contact point A and the fixed main board is SA, the distance between the contact point B and the fixed main board is SB, and SA is larger than SB; the contact B is used to reduce the Stup length.

Further, the contact points a and B are arc-shaped or conical.

Further, the mirror symmetry interval of side shell fragment is located the both sides of middle part shell fragment, the side shell fragment includes interior folded plate, outer folded plate, the slope of interior folded plate inwards sets up, the one end of interior folded plate is connected fixed mainboard, the other end of interior folded plate is connected outer folded plate, the slope of outer folded plate outwards sets up, the junction of interior folded plate and outer folded plate is contact point A.

Furthermore, the width of the outer folded plate is larger than that of the inner folded plate, the inner folded plate is arranged on the side part of the middle elastic sheet at intervals, and the length of the inner folded plate is larger than that of the middle elastic sheet.

Further, the side folded plate includes folded plate in first interior folded plate, the second and outer folded plate, folded plate mirror symmetry interval is located in the first interior folded plate, the second the both sides of middle part shell fragment, the length of folded plate in first interior folded plate, the second is greater than the length of middle part shell fragment, the one end of folded plate in first interior folded plate, the second all is connected to fixed mainboard, the other end of folded plate in first interior folded plate, the second all is connected to outer folded plate, the inner department of bending of outer folded plate is contact point A.

The utility model has the advantages that: on the premise of keeping the original contact point A unchanged, the contact point B is newly added, the height of the contact point B is lower than that of the contact point A, the Stup length can be effectively reduced, the original Stup length LA can be reduced to the Stup length LB, and the signal transmission rate of the contact piece is further improved.

Drawings

Fig. 1 shows an overall cross-sectional structural view of an embodiment of the resilient contact strip of the present invention;

fig. 2 shows a schematic view of the overall structure of the resilient contact piece of fig. 1;

FIG. 3 shows a side cross-sectional structural view of the resilient contact patch of FIG. 1;

fig. 4 shows a schematic view of the resilient contact piece and connector mating structure of fig. 1;

fig. 5 is a schematic view of the overall structure of a second embodiment of the elastic contact piece of the present invention;

fig. 6 shows an overall cross-sectional structural view of the male contact piece of fig. 5;

fig. 7 shows a schematic view of the resilient contact piece and connector mating structure of fig. 5;

fig. 8 is a schematic view showing a structure of a conventional elastic contact piece in the background art;

fig. 9 is a schematic view showing a connection structure of a resilient contact piece and a connector in the related art.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An elastic contact piece for a high-speed connector comprises a fixed main board 1, wherein a contact main body axially extends from the end part of the fixed main board 1, the contact main body comprises side elastic pieces 2 and middle elastic pieces 3, the middle elastic pieces 3 are embedded into the side elastic pieces 2 at intervals, the side elastic pieces 2 and the middle elastic pieces 3 are both positioned at the end part of the contact main body, and the side elastic pieces 2, the middle elastic pieces 3 and the fixed main board 1 are all positioned at the same axial central line;

the side elastic sheet 2 is bent inwards to form a protrusion with a contact point A, the middle elastic sheet 3 is bent inwards to form a protrusion with a contact point B, the distance between the contact point A and the fixed main board 1 is SA, the distance between the contact point B and the fixed main board 1 is SB, and SA is greater than SB; the contact B is used for reducing the Stup length; on the premise of keeping the original contact point A unchanged, the contact point B is newly added, the height of the contact point B is lower than that of the contact point A, the Stup length can be effectively reduced, the original Stup length LA can be reduced to the Stup length LB, and the signal transmission rate of the contact piece is further improved.

As an improvement of the technical scheme, the contact point A and the contact point B are arc-shaped or conical; the arc shape or the taper shape can realize the quick point contact of the contact points A and B with the external connector.

Exemplarily, the side spring piece 2 has two embodiments:

the first embodiment is as follows:

as shown in fig. 1 to 3, the side elastic pieces 2 are arranged on two sides of the middle elastic piece 3 at intervals in a mirror symmetry manner, each side elastic piece 2 includes an inner folded plate 21 and an outer folded plate 22, the inner folded plate 21 is arranged obliquely inward, one end of the inner folded plate 21 is connected to the fixed main board 1, the other end of the inner folded plate 21 is connected to the outer folded plate 22, the outer folded plate 22 is arranged obliquely outward, and a connection position between the inner folded plate 21 and the outer folded plate 22 is a contact point a; the outward-inclined outer folded plate 22 and the inward-inclined inner folded plate 21 are pressed and deformed when the elastic contact pieces are butted with the connector, and the deformed outer folded plate 22 and the deformed inner folded plate 21 reversely abut against the connector, so that the outer folded plate 22 and the inner folded plate 21 are stably fixed in the connector; at the same time, the deformed outer and

inner flaps

22, 21 will make the contact points a, B flush and contact the connector, ensuring the stability of the point contact.

The angle of inclination of the inner flap 21 is less than the angle of inclination of the outer flap 22, illustratively the angle of inclination of the inner flap 21 is between 0 ° and 20 ° and the angle of inclination of the outer flap 22 to the inner flap 21 is between 100 ° and 150 °.

The width of the outer folded plate 22 is greater than that of the inner folded plate 21, the inner folded plate 21 is arranged at the side part of the middle elastic sheet 3 at intervals, and the length of the inner folded plate 21 is greater than that of the middle elastic sheet 3; the design that length is great, width is great can the effectual storage space that increases middle part shell fragment 3.

As shown in fig. 4, in the first embodiment, when the elastic contact piece is inserted into the connector 4 during insertion, the two side spring pieces 2 and the middle spring piece 3 are pressed and deformed, the inner folded plate 21, the outer folded plate 22 and the middle spring piece 3 are pressed by the inner wall of the connector, so that the angle between the outer folded plate 22 and the inner folded plate 21 is increased, at this time, the two independent contact points a and B are attached to the inner wall of the connector, the contact points a and B are fully contacted with the connector, and the contact points a and B are distributed in parallel and level; the distance between the contact point A and the bottom end of the connector is LA, the distance between the contact point B and the bottom end of the connector is LB, and the contact distance between the elastic contact piece and the connector is reduced by the contact point B, so that the Stup length is LB.

Example two:

as shown in fig. 5 and 6, the side elastic sheet 2 includes a first inner folded plate 21, a second inner folded plate 22 and an outer folded plate 23, the first inner folded plate 21 and the second inner folded plate 22 are arranged on both sides of the middle elastic sheet 3 at intervals in a mirror symmetry manner, one ends of the first inner folded plate 21 and the second inner folded plate 22 are both connected to the fixed main board 1, the lengths of the first inner folded plate 21 and the second inner folded plate 22 are greater than the length of the middle elastic sheet 3, the other ends of the first inner folded plate 21 and the second inner folded plate 22 are both connected to the outer folded plate 23, and the inner end bending position of the outer folded plate 23 is a contact point a; the outer folded plate 23 with the integrated structure is convenient for rapid signal transmission, the first inner folded plate 21 and the second inner folded plate 22 are symmetrically arranged on two sides of the middle elastic sheet 3, and signals can be stably and rapidly transmitted while the inner folded plate and the middle elastic sheet are arranged at intervals; the length of interior folded plate is longer, can realize reserving sufficient installation space in the side shell fragment 2 and place the middle part shell fragment.

The inclination angles of the first inner folded plate 21 and the second inner folded plate 22 are smaller than the inclination angle of the outer folded plate 23, and illustratively, the inclination angles of the first inner folded plate 21 and the second inner folded plate 22 are 0-20 degrees, and the included angle between the outer folded plate 23 and the inner folded plate is 100-150 degrees.

As shown in fig. 7, in the second embodiment, when the elastic contact piece is inserted into the connector 4, the side elastic pieces 2 and the middle elastic piece 3 are all pressed and deformed, the first inner folded plate 21, the second inner folded plate 22, the outer folded plate 23 and the middle elastic piece 3 are all pressed and deformed by the inner wall of the connector, at this time, the contact points a and B are both attached to the inner wall of the connector, the contact points a and B of the integral structure are both fully contacted with the connector, and the contact points a and B are distributed in parallel; the distance between the contact point A and the bottom end of the connector is LA, the distance between the contact point B and the bottom end of the connector is LB, and the contact distance between the elastic contact piece and the connector is reduced by the contact point B, so that the Stup length is LB.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An elastic contact piece for a high-speed connector, characterized in that: the contact structure comprises a fixed main board, wherein a contact main body axially extends from the end part of the fixed main board, the contact main body comprises side elastic sheets and a middle elastic sheet, the middle elastic sheet is embedded in the side elastic sheets at intervals, the side elastic sheets and the middle elastic sheet are both positioned at the end part of the contact main body, and the side elastic sheets, the middle elastic sheets and the fixed main board are all positioned at the same axial center line;

the side shell fragment is inwards buckled and is protruding to have contact point A, the middle part shell fragment is inwards buckled and is protruding to have contact point B, contact point A with interval between the fixed mainboard is SA, contact point B with interval between the fixed mainboard is SB, SA > SB.

2. The elastic contact piece for a high-speed connector according to claim 1, wherein: the contact points A and B are arc-shaped or conical.

3. An elastic contact piece for a high-speed connector according to claim 1 or 2, wherein: the side shell fragment mirror symmetry interval is located the both sides of middle part shell fragment, the side shell fragment includes interior folded plate, outer folded plate, the slope of interior folded plate inwards sets up, the one end of interior folded plate is connected fixed mainboard, the other end of interior folded plate is connected outer folded plate, the slope of outer folded plate outwards sets up, the junction of interior folded plate and outer folded plate is contact point A.

4. The elastic contact piece for a high-speed connector according to claim 3, wherein: the width of outer folded plate is greater than the width of interior folded plate, interior folded plate interval is located the lateral part of middle part shell fragment, the length of interior folded plate is greater than the length of middle part shell fragment.

5. An elastic contact piece for a high-speed connector according to claim 1 or 2, wherein: the side folded plate includes folded plate in first interior folded plate, the second and outer folded plate, folded plate mirror symmetry interval is located in folded plate in first interior folded plate, the second the both sides of middle part shell fragment, the length of folded plate in first interior folded plate, the second is greater than the length of middle part shell fragment, the one end of folded plate in first interior folded plate, the second all is connected to fixed mainboard, the other end of folded plate in first interior folded plate, the second all is connected to outer folded plate, the inner department of bending of outer folded plate is contact point A.