CN217134728U - A film needle for testing connector - Google Patents

Abstract

The utility model provides a sheet pin for testing a connector, which comprises an integrally formed head part, a spring part and a tail part; the head comprises a first connecting part and two first testing contact parts, and the two first testing contact parts are symmetrically arranged along the width direction of the sheet needle; the tail part comprises a second connecting part and two second testing contact parts, and the two second testing contact parts are symmetrically arranged at two ends of the second connecting part in the width direction; the spring part comprises a first arc-shaped elastic sheet, a second arc-shaped elastic sheet and a third arc-shaped elastic sheet. The utility model provides a film needle for testing connector includes integrated into one piece's head, spring portion and afterbody, realizes the purpose to the whole compression of film needle through the spring portion in film needle middle section to can ensure that the head and the afterbody of film needle all can keep good contact with the connector, ensure the stability of contact during the test; the whole piece needle is made of nickel alloy materials, and the surface of the piece needle is plated with gold, so that the service life of the piece needle can be greatly prolonged.

Description

A film needle for testing connector

Technical Field

The utility model belongs to the technical field of flexible circuit board test technique and specifically relates to a film needle for test connector is related to.

Background

With the continuous development of science and technology, flexible circuit boards are adopted as core components in more and more electronic products. The layout space for the flexible circuit board is also developing towards being more compact and more optimized. The traditional double-ended needle for the flexible circuit board cannot meet the requirement of the existing flexible circuit board connector pich for use in products with the diameter less than 0.35mm due to the limitation of the tube diameter of the needle tube. And the traditional double-ended needle for the flexible circuit board has the defects of small needle inserting position tolerance, too fast abrasion in the test process and unstable contact resistance, so that the service life and the accuracy of the test are directly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the current double-ended needle structure that is used for flexible circuit board and can't satisfy the current pich and be less than 0.35 mm's product use because the restriction of needle tubing pipe diameter to the shortcoming of life and the accuracy of its self acupuncture position tolerance little, wearing and tearing piece, contact resistance unstable and direct influence test provides a piece needle for testing connector.

The utility model provides a technical scheme that its technical problem adopted is: a sheet pin for testing a connector comprises a head part, a spring part and a tail part which are integrally formed; the head part comprises a first connecting part fixed with the spring part and two first testing contact parts extending along the length direction of the sheet needle from the first connecting part, and the two first testing contact parts are symmetrically arranged along the width direction of the sheet needle; the tail part comprises a second connecting part fixed with the spring part and two second testing contact parts extending from the second connecting part along the length direction of the sheet needle, and the two second testing contact parts are symmetrically arranged at two ends of the second connecting part in the width direction; the spring part comprises a first arc-shaped elastic sheet, a second arc-shaped elastic sheet and a third arc-shaped elastic sheet which are used for connecting the first connecting part of the head part and the second connecting part of the tail part into a whole.

Further, the first test contact part comprises a mounting section fixed with the first connecting part and a test section capable of contacting with a test product, and the width of the test section is gradually reduced from one side close to the mounting section to one side far away from the mounting section.

Specifically, the test section is provided with an abutting surface which is in a shape of a profile design with a contact surface of the test product on an end surface far away from the installation section.

Further, the first connecting portion has a first side and a second side perpendicular to each other at an end close to the second connecting portion, and the second connecting portion has a third side and a fourth side perpendicular to each other at an end close to the first connecting portion; the first side edge of the first connecting portion and the third side edge of the second connecting portion are arranged in parallel, and the second side edge of the first connecting portion and the fourth side edge of the second connecting portion are located on the same horizontal line.

Furthermore, the first arc-shaped elastic sheet comprises a first arc-shaped section, a U-shaped section and a second arc-shaped section which are sequentially connected; the first arc-shaped section and the second arc-shaped section are symmetrically arranged on two sides of the U-shaped section.

Specifically, the first arc-shaped section extends from the end of the first side edge of the first connecting part to the end of the U-shaped section, and the second arc-shaped section extends from the end of the third side edge of the second connecting part to the end of the U-shaped section.

Further, the second arc-shaped elastic sheet extends from the intersection of the first side edge and the second side edge to the intersection of the third side edge and the fourth side edge.

Furthermore, the third arc-shaped elastic sheet extends from the middle section of the second side edge of the first connecting portion to the middle section of the fourth side edge of the second connecting portion.

Specifically, the head portion further includes a first support portion extending in the width direction of the sheet pin from an end portion of the second side edge of the first connection portion away from the second connection portion.

Specifically, the tail portion further includes a second support portion extending from an end portion of the second side edge of the second connection portion away from the first connection portion in the width direction of the sheet needle.

The utility model provides a beneficial effect that is used for test connector's film needle lies in: the blade needle comprises a head part, a spring part and a tail part which are integrally formed, and the aim of integrally compressing the blade needle is fulfilled through the spring part at the middle section of the blade needle, so that the head part and the tail part of the blade needle can be ensured to be in good contact with a connector, and the contact stability during testing is ensured; the whole nickel alloy material that adopts of piece needle is processed, and surface gold-plating is handled, can be greatly along the life of piece needle, and piece needle head portion has two first test contact portions simultaneously to can improve the stability of contact between piece needle and the connector by a wide margin, simultaneously, this first test contact portion surface produces slight friction when contacting with the connector, can get rid of dust or oxide on the connector, can further pass through the stability of test.

Drawings

Fig. 1 is a schematic perspective view of a wafer pin for testing a connector according to the present invention;

FIG. 2 is a front view of a wafer pin for testing a connector provided by the present invention;

fig. 3 is a front view of a head of a wafer pin for testing a connector in contact with the connector according to the present invention.

In the figure: 100-piece pins, 10-head part, 11-first connecting part, 111-first side edge, 112-second side edge, 12-first testing contact part, 121-mounting section, 122-testing section, 123-abutting surface, 13-first supporting part, 20-spring part, 21-first arc-shaped elastic sheet, 211-first arc-shaped section, 212-U-shaped section, 213-second arc-shaped section, 22-second arc-shaped elastic sheet, 23-third arc-shaped elastic sheet, 30-tail part, 31-second connecting part, 311-third side edge, 312-fourth side edge, 32-second testing contact part, 33-second supporting part and 200-testing product.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and 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.

Referring to fig. 1-3, a wafer probe 100 for testing connectors is provided in accordance with the present invention. The chip pin 100 can be applied to various testing connectors for testing flexible circuit boards, and is particularly applicable to testing flexible circuit boards with the pich smaller than 0.35 mm.

Further, as shown in fig. 1, a perspective view of a wafer pin 100 for testing a connector according to the present invention is shown. The utility model provides a film pin 100 for testing connector includes integrated into one piece's head 10, spring portion 20 and afterbody 30. The flat needle 100 comprises a head part 10, a spring part 20 and a tail part 30 which are connected in sequence, and the three parts are integrally formed and processed. In this embodiment, the sheet pin 100 is made of a nickel alloy material by mold opening processing, and gold is plated on the entire surface of the sheet pin 100. The spring part 20 between the head part 10 and the tail part 30 of the flat needle 100 is designed to be a bent structure, so that the spring part 20 is pressed between the head part 10 and the tail part 30 during the test, and the bending deformation of the spring part 20 is utilized to absorb the pressure transmitted from the two sides. The nickel alloy material is adopted for processing, good high-frequency characteristics can be provided for the whole sheet 100, the surface gold plating design is not easy to wear, and the service life of the sheet 100 can be greatly prolonged.

Specifically, as shown in fig. 1 and 2, the head 10 of the slice needle 100 provided by the present invention includes a first connecting portion 11 fixed with a spring portion 20 and two first testing contact portions 12 extending from the first connecting portion 11 along the length direction of the slice needle 100, and the two first testing contact portions 12 are symmetrically disposed along the width direction of the slice needle 100. The first connecting portion 11 of the head portion 10 connects the two first test contact portions 12, and connects the spring portion 20 to perform the function of moving up and down. One side surface of the first connection portion 11 is provided with two first test contact portions 12, and the two first test contact portions 12 are arranged at intervals along the width direction of the sheet needle 100, that is, at intervals in the Y direction shown in fig. 2. And the two first test contacts 12 are symmetrically arranged along the length direction of the sheet pin 100. The two first test contacts 12 have the same length and can be abutted against the test product 200 at the same time. The two first test contacts 12, on the one hand, increase the chance of contacting the test product 200 compared to a conventional probe with a double-ended needle structure, i.e. both first test contacts 12 can contact the test product 200 at the same time; on the other hand, the thickness of the sheet pin 100 can be adaptively adjusted according to the requirement of the test product 200, so that the use of the test product 200 with the pich smaller than 0.35mm can be met, and the thickness of the first test contact part 12 is consistent with that of the sheet pin 100, so that the use of different test products 200 can be met; and two first test contact parts 12 contact with test product 200 simultaneously, compare in the double-ended needle structure and increased the contact point, reduced the position requirement and the processing requirement to the contact end of first test contact part 12, two first test contact parts 12 are difficult to the slope after contacting with test product 200, also can not slide the needle, have reduced the risk of test connector mistesting. The two first test contact parts 12 arranged on the first connection part 11 side of the head part 10 are symmetrically arranged, a fork is formed in the middle, the position tolerance is large, when the head part is contacted with a test product in a fork way, a friction action is generated, dust and oxide on the surface of the test product 200 can be rubbed off, and the head part has stable contact resistance.

Further, as shown in fig. 1, the first testing contact portion 12 of the head 10 of the present invention includes a mounting section 121 fixed to the first connecting portion 11 and a testing section 122 contactable with the testing product 200, and a width of the testing section 122 is gradually reduced from a side close to the mounting section 121 toward a side far from the mounting section 121. The two first test contacts 12 are identical in structure and are symmetrically arranged, so that a fork is formed between the two first test contacts 12, and the design of the fork will cause the two first test contacts 12 to generate friction with the test product 200 when contacting the test product 200. In particular the test section 122 of the first test contact 12. The two sides of the two testing sections 122 are reduced toward the center, resulting in the width of the two testing sections 122 being gradually reduced from the side close to the mounting section 121 toward the side far from the mounting section 121. The ends of the two test sections 122 are brought into contact with the test product 200 and then conducted for testing.

In particular, as shown in fig. 2, the testing section 122 of the first testing contact 12 in this head 10 is provided with an abutment surface 123 of a profile design with the contact surface of the test product 200 on the end face remote from the mounting section 121. The contact surface 123 is located at the end face of the testing section 122 remote from the spring portion 20, the contact surface 123 being intended to be in contact with the test product 200. In the present embodiment, as shown in fig. 3, the test product 200 has a U-shaped structure, and particularly, both sides of the contact surface of the test product 200 and the sheet pin 100 have downward curved arcs. Therefore, in the present embodiment, the abutting surface 123 of the head 10 of the sheet pin 100 is a curved surface structure designed to follow the side surface of the test product 200. And the curved direction of the arc is the same as the arc structure of the contact surface of the test product 200. The utility model provides a butt face 123's of head 10 structure also can be adjusted according to test product 200's actual shape and structure, and convenient design and processing also does benefit to this head 10 and test product 200's contact more.

Specifically, as shown in fig. 1 and fig. 2, the tail portion 30 of the slice needle 100 provided by the present invention includes a second connecting portion 31 fixed with the spring portion 20 and two second testing contact portions 32 extending along the length direction of the slice needle 100 from the second connecting portion 31, and the two second testing contact portions 32 are symmetrically disposed at two ends of the width direction of the second connecting portion 31. The second connecting portion 31 of the tail portion 30 connects the two second test contact portions 32, and connects the spring portion 20, and functions to hold the head portion in the up-and-down direction like the first connecting portion 10 of the head portion 10. One side surface of the second connection portion 12 is provided with two second test contact portions 32, and the two second test contact portions 32 are symmetrically arranged along the width direction of the sheet pin 100, that is, the Y direction shown in fig. 2. The two second test contacts 32 are of the same length and are each adapted to contact the signal relay PCB board.

Specifically, as shown in fig. 1 and fig. 2, the spring portion 20 of the slice needle 100 provided by the present invention includes a first arc-shaped elastic piece 21, a second arc-shaped elastic piece 22, and a third arc-shaped elastic piece 23, which connect the first connecting portion 11 of the head portion 10 and the second connecting portion 31 of the tail portion 30 into a whole. The spring portion 20 is designed to have three arc-shaped sheet structures, and provides a space for the head portion 10 and the tail portion 30 to elastically deform, so that the pressure applied to both sides can be absorbed. And the design of the three arc-shaped elastic sheets of the spring part 20 can better serve the contact between the head part 10 and the tail part 20, when the compression amount of the spring part 20 of the sheet needle 100 is 0.2mm, the corresponding elastic force is 2.7N, and the three arc-shaped elastic sheets can disperse and absorb the pressure transmitted by the two sides.

Further, as shown in fig. 2, the first connecting portion 11 of the head portion 10 of the lamellar needle 100 provided by the present invention has a first side 111 and a second side 112 perpendicular to each other at an end close to the second connecting portion 31. The first connecting portion 11 has a rectangular shape as a whole, and has a first side 111 and a second side 112 perpendicular to each other at an end close to the second connecting portion 31. The second connecting portion 31 of the tail portion 30 of the slice needle 100 provided by the present invention has two mutually perpendicular third sides 311 and fourth sides 312 at the end close to the first connecting portion 11. The second connecting portion 31 has a rectangular structure as a whole, and has a third side plate 311 and a fourth side plate 312 perpendicular to each other at an end close to the first connecting portion 11. The first side 111 of the first connecting portion 11 of the head portion 10 and the third side 311 of the second connecting portion 31 of the tail portion 30 are parallel to each other, and the second side 112 of the first connecting portion 11 of the head portion 10 and the fourth side 312 of the second connecting portion 31 of the tail portion 30 are on the same horizontal line.

Specifically, as shown in fig. 2, the first arc-shaped elastic piece 21 in the spring portion 20 of the lamellar needle 100 provided by the present invention includes a first arc-shaped section 211, a U-shaped section 212, and a second arc-shaped section 213 connected in sequence; the first arc-shaped section 211 and the second arc-shaped section 213 are symmetrically arranged at two sides of the U-shaped section 212. The first arc-shaped elastic sheet 21 is positioned at the inner side of the whole sheet needle 100. As shown in fig. 3, when two sheet pins 100 are simultaneously mounted on the pin mold, two first arc-shaped elastic pieces 21 are located at the center of the entire pin mold. The curvature of the first arc-shaped spring piece 21 is changed more than that of the second arc-shaped spring piece 22 and the third arc-shaped spring piece 23. Accordingly, the first dome spring 21 has a first arc-shaped section 211, a U-shaped section 212 and a second arc-shaped section 213 connected between the first connection portion 11 and the second connection portion 31. The first arc-shaped segment 211 extends from the end of the first side 111 of the first connecting portion 11 to the end of the U-shaped segment 212, and the second arc-shaped segment 213 extends from the end of the third side 311 of the second connecting portion 31 to the end of the U-shaped segment 212. When the head 10 and the tail 30 of the stylet 100 are simultaneously pressed, the first arc-shaped section 211, the second arc-shaped section 213 and the bent part of the U-shaped section 212 are pressed to be more deformed, so as to absorb the pressure on the two sides.

Specifically, as shown in fig. 2, the utility model provides a second arc-shaped elastic piece 22 and third arc-shaped elastic piece 23 in spring portion 20 of slice needle 100 are two semi-circular arc pieces that set up concentrically, and the bending section three of the U-shaped section 212 in this second arc-shaped elastic piece 22, third arc-shaped elastic piece 23 and the first arc-shaped elastic piece 21 is concentric setting, and it is only that the radius of curvature is different. The second arc-shaped elastic piece 22 of the spring portion 20 extends from the intersection of the first side 111 and the second side 112 to the intersection of the third side 311 and the fourth side 312, and the third arc-shaped elastic piece 23 of the spring portion 20 extends from the middle section of the second side 112 of the first connecting portion 11 to the middle section of the fourth side 312 of the second connecting portion 31.

Further, as shown in fig. 1, in the lamellar needle 100 provided by the present invention, the head portion 10 further includes a first supporting portion 13 extending along the width direction of the lamellar needle 100 from the end portion of the second side 112 of the first connecting portion 11 away from the second connecting portion 31. The first support part 13 is used for fixing the head part 10 of the sheet needle 100 in the needle mould core, and the relative position of the head part 10 of the sheet needle 100 in the vertical and horizontal directions in the needle mould core is limited by the first support part 13, so that the accuracy of the sheet needle 100 in installation can be improved.

Further, as shown in fig. 1, in the sheet needle 100 provided by the present invention, the tail portion 30 further includes a second supporting portion 33 extending along the width direction of the sheet needle 100 from the end portion of the second side 112 of the second connecting portion 31 far away from the first connecting portion 11. The second supporting portion 33 is used for fixing the tail portion 30 of the sheet needle 100 in the needle die core, and the relative positions of the tail portion 30 of the sheet needle 100 in the vertical and horizontal directions in the needle die core are limited through the second supporting portion 33, so that the accuracy of the sheet needle 100 in installation can be improved.

The utility model provides a film pin 100 for testing connector includes integrated into one piece's head 10, spring portion 20 and afterbody 30, realizes the purpose to the whole compression of film pin 100 through the spring portion 20 in the middle section of film pin 100 to can ensure that both head 10 and afterbody 30 of film pin 100 can keep good contact with the connector, ensure the stability of contact during the test; the whole wafer needle 100 is made of nickel alloy, the surface is plated with gold, the service life of the wafer needle 100 can be greatly prolonged, meanwhile, the head 10 of the wafer needle 100 is provided with two first test contact parts 12, so that the contact stability between the wafer needle 100 and a connector can be greatly improved, meanwhile, the surface of the first test contact part 12 generates slight friction when contacting with the connector, dust or oxide on the connector can be removed, and the test stability can be further passed.

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

Claims (10)

1. A chip pin for testing a connector is characterized by comprising a head part, a spring part and a tail part which are integrally formed;

the head part comprises a first connecting part fixed with the spring part and two first testing contact parts extending along the length direction of the sheet needle from the first connecting part, and the two first testing contact parts are symmetrically arranged along the width direction of the sheet needle;

the tail part comprises a second connecting part fixed with the spring part and two second testing contact parts extending from the second connecting part along the length direction of the sheet needle, and the two second testing contact parts are symmetrically arranged at two ends of the second connecting part in the width direction;

the spring part comprises a first arc-shaped elastic sheet, a second arc-shaped elastic sheet and a third arc-shaped elastic sheet which are used for connecting the first connecting part of the head part and the second connecting part of the tail part into a whole.

2. The wafer pin for testing a connector according to claim 1, wherein the first test contact portion includes a mounting section fixed to the first connecting portion and a test section contactable with a test product, and a width of the test section is gradually reduced from a side close to the mounting section toward a side away from the mounting section.

3. A wafer pin for testing a connector as claimed in claim 2, wherein the testing section is provided with an abutment surface on an end face remote from the mounting section, which abutment surface is of a profile design with a contact surface of the test product.

4. A wafer pin for testing connectors according to claim 1, wherein the first connecting portion has two first and second mutually perpendicular sides at an end adjacent to the second connecting portion, and the second connecting portion has two third and fourth mutually perpendicular sides at an end adjacent to the first connecting portion; the first side edge of the first connecting portion and the third side edge of the second connecting portion are arranged in parallel, and the second side edge of the first connecting portion and the fourth side edge of the second connecting portion are located on the same horizontal line.

5. The wafer pin for testing a connector of claim 4, wherein the first dome-shaped spring comprises a first arc-shaped section, a U-shaped section and a second arc-shaped section which are connected in sequence; the first arc-shaped section and the second arc-shaped section are symmetrically arranged on two sides of the U-shaped section.

6. The wafer pin for testing connectors according to claim 5, wherein the first arcuate section extends from an end of a first side of the first connecting portion to an end of the U-shaped section, and the second arcuate section extends from an end of a third side of the second connecting portion to an end of the U-shaped section.

7. The wafer pin for testing a connector of claim 4, wherein the second dome extends from a junction of the first side and the second side to a junction of the third side and the fourth side.

8. The wafer pin for testing a connector of claim 4, wherein the third arc-shaped spring plate extends from a middle section of the second side of the first connecting portion to a middle section of the fourth side of the second connecting portion.

9. The wafer pin for testing connectors according to claim 4, wherein the head portion further comprises a first support portion extending in a width direction of the wafer pin from an end portion of the second side of the first connecting portion away from the second connecting portion.

10. The wafer pin for testing connectors according to claim 4, wherein the tail portion further comprises a second support portion extending in a width direction of the wafer pin from an end of the second side of the second connection portion away from the first connection portion.

Images