CN216051824U

CN216051824U - Test clamp jig applied to BTB connector

Info

Publication number: CN216051824U
Application number: CN202121631868.3U
Authority: CN
Inventors: 谢后勇
Original assignee: Shenzhen Xinjingwei Technology Co ltd
Current assignee: Shenzhen Xinjingwei Technology Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-03-15
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a test fixture applied to a BTB connector, which comprises an upper needle plate, a carrier plate, a substrate and a PCB, wherein the upper needle plate can be elastically and floatingly arranged on the upper surface of the carrier plate, the lower surface of the carrier plate is provided with an inwards concave accommodating groove, the substrate is fixedly arranged in the accommodating groove, an elastic sheet needle array is embedded in the carrier plate, the upper end of the elastic sheet needle array penetrates through the upper needle plate and is exposed out of the upper surface of the upper needle plate, and the lower end of the elastic sheet needle array penetrates through the substrate and is electrically connected with the PCB below the substrate; the elastic sheet needle is stably pressed down through the two parallel-arranged double-contact structures, so that the contact stability of the elastic sheet needle and the BTB connector to be tested is ensured; the jig has strong universality, and different spring piece needles can be replaced according to different test products; the lower ends of the spring piece needles are arranged in a crossed mode, the safety distance is increased, and the reliability of the jig is greatly improved.

Description

Test clamp jig applied to BTB connector

Technical Field

The utility model relates to the field of test jigs, in particular to a test clamp jig applied to a BTB connector.

Background

The test fixture belongs to a category under the fixture, and is specially used for testing and experimenting functions, power calibration, service life, performance and the like of a product. The test fixture is mainly used for testing various indexes of products on a production line, so the test fixture is called. BTB connectors, also known as board-to-board connectors, are a common connector product in the electronic market. Among various types of connector products, the BTB connector has the strongest transmission function and the widest application range, and can play a good role in many fields, especially in the industries of communication networks, office equipment, intelligent home appliances, medical equipment, power systems, industrial manufacturing and the like. With the rapid development of light, thin, small and small electronic products, BTB connectors are also developed toward small Pitch, multiple pin count, low height, and high frequency applications. The thinning of electronic products also makes BTB connectors more widely used.

The conventional BTB connector applied to the pitch of 0.175mm is easy to generate short circuit during testing due to the small terminal pitch, and the reliability of the jig is not high.

SUMMERY OF THE UTILITY MODEL

The present invention mainly solves the technical problems of the prior art, and provides a test clip fixture applied to a BTB connector.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a be applied to test fixture of BTB connector, includes last faller, support plate, base plate and PCB board, but the setting of going up faller elastic floating is at the upper surface of support plate, the storage tank of indent is seted up to the support plate lower surface, base plate fixed mounting is in the storage tank, the embedded shell fragment needle array that is equipped with of support plate, the upper end of shell fragment needle array is passed the faller and is exposed needle upper surface, shell fragment needle array lower extreme passes the base plate and is connected with the PCB board electricity of base plate below.

More specifically, the upper needle plate is connected with the carrier plate through a pair of limiting screws, a plurality of spring accommodating grooves are formed between the upper needle plate and the carrier plate, and springs are installed in the spring accommodating grooves.

More specifically, a movement gap of the upper needle plate relative to the carrier plate is arranged between the upper needle plate and the carrier plate.

More specifically, the upper needle plate is provided with a raised positioning boss, the upper surface of the positioning boss is provided with a plurality of positioning fixture blocks, and the positioning boss is provided with a first array hole matched with the shrapnel needle array.

More specifically, the upper surface of the support plate is provided with a mounting boss, two accommodating cavities of the elastic sheet needle array are arranged in the mounting boss, openings communicated with the two accommodating cavities are arranged in the mounting boss of the support plate, the side wall of each accommodating cavity is provided with a clamping groove used for separating the elastic sheet needle array, an insulating spacer is arranged between the elastic sheet needle array and the elastic sheet needle array, and two ends of the insulating spacer are fixed by the clamping grooves.

More specifically, a second array hole matched with the lower end of the spring pin array is arranged on the substrate.

More specifically, the upper ends of the elastic needle arrays are arranged in two linear arrays, and the lower ends of the elastic needle arrays are arranged in a staggered manner and divided into four linear arrays.

Compared with the prior art, the utility model has the following beneficial effects:

the elastic sheet pin is only 0.075mm thick, and a spring between the upper pin plate and the carrier plate can provide stable elastic force to enable the upper pin plate to keep an elastic floating state; the elastic sheet needle is stably pressed down through the two parallel-arranged double-contact structures, so that the contact stability of the elastic sheet needle and the BTB connector to be tested is ensured; the upper needle plate and the substrate are vertically grooved, the processing is convenient, the die opening is not needed, and the production period is short; the jig has strong universality, and different spring piece needles can be replaced according to different test products; the lower ends of the spring piece needles are arranged in a crossed mode, the safety distance is increased, and the reliability of the jig is greatly improved.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic structural view of an upper needle plate of the present invention;

FIG. 3 is a schematic view of the structure of the upper surface of the carrier plate of the present invention

FIG. 4 is a schematic structural diagram of a lower surface of a carrier according to the present invention;

FIG. 5 is a cross-sectional view of the present invention;

FIG. 6 is an exploded view of the present invention;

fig. 7 is a schematic structural view of the pogo pin array of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, an embodiment of a test fixture for a BTB connector includes an upper pin plate 1, a carrier plate 2, a substrate 3, and a PCB (not shown in the drawings), wherein the upper pin plate 1 is elastically and floatingly disposed on an upper surface of the carrier plate 2, an inward-recessed accommodating groove 22 is disposed on a lower surface of the carrier plate 2, the substrate 3 is fixedly mounted in the accommodating groove 22, a pogo pin array 4 is embedded in the carrier plate 2, an upper end of the pogo pin array 4 passes through the upper pin plate 1 and is exposed out of the upper surface of the upper pin plate 1, and a lower end of the pogo pin array 4 passes through the substrate 3 and is electrically connected to the PCB below the substrate 3.

The upper needle plate 1 is connected with the carrier plate 2 through a pair of limiting screws 14, and a movement gap of the upper needle plate relative to the carrier plate is arranged between the upper needle plate 1 and the carrier plate 2, so that the upper needle plate 1 is ensured not to be separated from the carrier plate 2 while the upper needle plate 1 floats up and down relative to the carrier plate 2.

Go up and be provided with a plurality of spring storage tanks between faller 1 and the support plate 2, install spring 13 in the spring storage tank, under the effect of not exerting external force, because spring 13's elastic support power, go up faller 1 elastic support in the top of support plate 2, both keep a biggest interval, when the BTB connector that awaits measuring supports and goes up faller 1, go up faller 1 and overcome the spring support power and remove to support plate 2, both intervals shrink, when the BTB connector test finishes the back and breaks away from last faller 1, go up faller 1 and reply highest position again, it is located support plate 2 tops all the time that last faller 1 elastically floats like this.

The upper needle plate 1 is provided with a raised positioning boss 10, the upper surface of the positioning boss 10 is provided with a plurality of positioning fixture blocks 11, the positioning boss 10 is provided with a first array hole 12 matched with the upper end of the shrapnel needle array 4, and when the BTB connector moves downwards, the BTB connector is limited by the positioning fixture blocks 11 to be accurately contacted with the upper end of the shrapnel needle array 4.

The upper surface of support plate 2 is provided with installation boss 20, is provided with two in the installation boss 20 the holding chamber 23 of shell fragment needle array 4, be provided with the opening 21 with two holding chamber 23 intercommunications in the installation boss 20 of support plate 2, the lateral wall in holding chamber sets up the draw-in groove 24 that is used for separating the shell fragment needle array, is provided with insulating spacer between shell fragment needle array 4 and the shell fragment needle array 4, insulating spacer both ends are fixed by draw-in groove 24, and the setting up of insulating spacer makes the shell fragment needle array 4 between insulating mutually, has avoided the possibility of short circuit.

The substrate 3 is provided with a second array hole 31 matching with the lower end of the spring pin array 4, and the lower end of the spring pin array 4 penetrates through the second array hole 31 and is electrically connected with a PCB (not shown in the figure).

The upper end 41 of the elastic pin array 4 is two linear arrays and is arranged and penetrates through the matched first array holes 12, the lower end 42 of the elastic pin array is staggered to be divided into four linear arrays and is arranged, and penetrates through the matched second array holes 31, and by means of the design structure, the terminal space of the small BTB connector is changed into the large space of the lower end 42 of the elastic pin array, so that the safety distance is increased, and the test is safe and reliable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be applied to test fixture of BTB connector, its characterized in that, includes last faller, support plate, base plate and PCB board, but the setting of going up faller elastic floating is at the upper surface of support plate, the storage tank of indent is seted up to the support plate lower surface, base plate fixed mounting is in the storage tank, the embedded shell fragment needle array that is equipped with of support plate, the upper end of shell fragment needle array is passed the faller and is exposed needle plate upper surface, shell fragment needle array lower extreme passes the base plate and is connected with the PCB board electricity of base plate below.

2. The fixture of claim 1, wherein the fixture comprises: the upper needle plate is connected with the support plate through a pair of limiting screws, a plurality of spring accommodating grooves are formed between the upper needle plate and the support plate, and springs are installed in the spring accommodating grooves.

3. The fixture of claim 1, wherein the fixture comprises: a movement gap of the upper needle plate relative to the carrier plate is arranged between the upper needle plate and the carrier plate.

4. The fixture of claim 1, wherein the fixture comprises: the upper needle plate is provided with a raised positioning boss, the upper surface of the positioning boss is provided with a plurality of positioning fixture blocks, and the positioning boss is provided with a first array hole matched with the shrapnel needle array.

5. The fixture of claim 1, wherein the fixture comprises: the mounting structure comprises a support plate and is characterized in that a mounting boss is arranged on the upper surface of the support plate, two containing cavities of an elastic sheet needle array are arranged in the mounting boss, an opening communicated with the two containing cavities is formed in the mounting boss of the support plate, a clamping groove used for separating the elastic sheet needle array is formed in the side wall of each containing cavity, an insulating spacer is arranged between the elastic sheet needle array and the elastic sheet needle array, and two ends of the insulating spacer are fixed by the clamping groove.

6. The fixture of claim 1, wherein the fixture comprises: and a second array hole matched with the lower end of the spring plate pin array is arranged on the substrate.

7. The fixture of claim 1, wherein the fixture comprises: the upper ends of the elastic needle arrays are arranged in two linear arrays, and the lower ends of the elastic needle arrays are arranged in a staggered mode and divided into four linear arrays.