CN219039139U

CN219039139U - Microneedle testing device

Info

Publication number: CN219039139U
Application number: CN202223134767.2U
Authority: CN
Inventors: 计富强
Original assignee: Kunshan Dayang Printed Circuit Board Co ltd
Current assignee: Kunshan Dayang Printed Circuit Board Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-05-16
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses a microneedle test device, comprising: the needle dial comprises a fixed sleeve, a test layer fiberboard and a plurality of guide pin layer fiberboard, wherein the guide pin layer fiberboard is arranged in parallel, the guide pin layer fiberboard is fixedly installed on the fixed sleeve, the bottom of the fixed sleeve is fixedly installed on the wire disc, the top of the fixed sleeve is penetrated and arranged on the test layer fiberboard, the inside of the fixed sleeve is provided with a first internal thread, a first fastening piece is in threaded connection with the fixed sleeve, the bottom of the first fastening piece is in threaded connection with the wire disc, a probe is arranged on the guide pin layer fiberboard, the test layer fiberboard is elastically connected with the uppermost guide pin layer fiberboard, the top of the probe is penetrated and arranged on a first through hole on the test layer fiberboard, and a positioning pin is arranged on the test layer fiberboard. Compared with the prior art, the utility model effectively protects the head of the test probe, avoids bending and breaking of the test probe, and ensures the test effect of the microneedle test device.

Description

Microneedle testing device

Technical Field

The utility model relates to the technical field of microneedle testing, in particular to a microneedle testing device.

Background

The PCB, i.e., a printed circuit board, is a carrier for electronic component mounting. Testing is needed after PCB processing is completed, and unqualified products are removed to ensure product quality.

In PCB testing, microneedle testing is typically performed by a microneedle test fixture. The microneedle test fixture generally comprises a base, a needle plate, a bottom plate, a plurality of probe assemblies and wires, wherein the needle plate is formed by combining a plurality of layers of plates, a space is arranged between the plates, a plurality of perforations are formed in the needle plate and the bottom plate, the probe assemblies are arranged in the perforations of the needle plate and the bottom plate, and the heads of the probes are exposed out of the surface of the needle plate.

In the existing microneedle test fixture, the head of the test probe keeps a state of exposing the surface of the needle plate, the head of the test probe is easy to damage, bend and break, and the test effect of the microneedle test fixture is affected.

Disclosure of Invention

The utility model aims at: the micro-needle testing device is provided, the head of the testing probe is effectively protected, the bending and breaking of the testing probe are avoided, and the testing effect of the micro-needle testing device is ensured.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a microneedle testing arrangement, including dial and drum, the dial includes fixed cover, test layer fibreboard and a plurality of layer guide pin layer fibreboard, a plurality of layer guide pin layer fibreboard parallel arrangement, guide pin layer fibreboard fixed mounting is on fixed cover, fixed cover bottom fixed mounting is on the drum, the test layer fibreboard is worn to locate at fixed cover top, fixed cover inside is provided with first internal thread, first fastener threaded connection is in fixed cover, first fastener bottom threaded connection is on the drum, be provided with the probe on the guide pin layer fibreboard, test layer fibreboard elastic connection is on the layer guide pin layer fibreboard that is uppermost, first through-hole on the test layer fibreboard is worn to locate at the probe top, be provided with the locating pin on the test layer fibreboard, the drum includes a plurality of range upon range of first fibreboard of arranging, be provided with a plurality of wire on the drum, the connection probe is connected to wire one end, the ox horn connector is connected to relative other end.

As a further description of the above technical solution:

an elastic connecting piece is arranged between the test layer fiber board and the uppermost guide pin layer fiber board, the elastic connecting piece comprises a first shell, a second shell and a first elastic element, the first shell is inserted into the test layer fiber board, the second shell is inserted into the uppermost guide pin layer fiber board, one end of the first elastic element is fixedly arranged on the first shell, and the other opposite end of the first elastic element is fixedly arranged on the second shell.

As a further description of the above technical solution:

cushion blocks are arranged between two adjacent guide pin layer fiber boards, plug connectors which are symmetrically arranged are arranged at two ends of each cushion block, and the plug connectors are plugged in the guide pin layer fiber boards.

As a further description of the above technical solution:

the dial also comprises a support column, the guide pin layer fiberboard is fixedly arranged on the support column, and the top of the support column penetrates through the test layer fiberboard.

As a further description of the above technical solution:

the locating pin elastic connection is on the fibre board of the guide pin layer of the uppermost layer, and the locating pin top wears to locate the test layer fibre board.

As a further description of the above technical solution:

the wire coil below is provided with the base, is provided with a plurality of spliced pole on the base, and the spliced pole supports the wire coil below, and the wire coil passes through second fastener fixed mounting on the spliced pole, and second fastener threaded connection is on the spliced pole.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. in the utility model, under the conventional state, the top of the probe in the micro-needle testing device is arranged in the first through hole on the test layer fiber board, the probe is protected and hidden by the test layer fiber board, the head of the test probe is effectively protected, the bending and breaking of the test probe are avoided, and the testing effect of the micro-needle testing jig is ensured. When the PCB is tested, the test layer fiber board is extruded, and the top of the probe is exposed out of the test layer fiber board and is contacted with the PCB, so that the test is realized.

2. In the utility model, the locating pin is elastically connected to the fiber plate of the uppermost guide pin layer, and the top of the locating pin penetrates through the fiber plate of the test layer. On the one hand, the locating pin along with descending of the test layer fiberboard keeps extending out of the length of the test layer fiberboard, and on the other hand, the locating pin is arranged in a floating mode, so that collision damage can not occur between the locating pin and the locating pin when the PCB is placed to deviate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a microneedle test device.

Fig. 2 is a partial enlarged view at a in fig. 1.

Fig. 3 is a schematic diagram showing a state change of a microneedle test device.

Fig. 4 is a partial enlarged view at B in fig. 3.

FIG. 5 is a schematic diagram of a spacer block in a microneedle test device.

Legend description:

1. a dial; 11. testing the layer fiber board; 12. a guide pin layer fiber board; 13. a fixed sleeve; 14. a first fastener; 15. a support column; 2. wire coil; 21. a first fiberboard; 22. a wire; 23. a second fastener; 3. a probe; 4. a positioning pin; 5. an elastic connection member; 51. a first housing; 52. a second housing; 53. a first elastic element; 6. a cushion block; 61. a plug; 7. a base; 71. and (5) connecting the columns.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a microneedle testing arrangement, including needle dial 1 and drum 2, needle dial 1 includes fixed cover 13, test layer fibreboard 11 and a plurality of layer guide pin layer fibreboard 12, a plurality of layer guide pin layer fibreboard 12 parallel arrangement, guide pin layer fibreboard 12 quantity can be according to probe 3 length adjustment, specifically adopt 3 layer guide pin layer fibreboard 12 in this embodiment, guide pin layer fibreboard 12 bonding is fixed on fixed cover 13, fixed cover 13 bottom bonding is fixed on drum 2, test layer fibreboard 11 is worn to locate at fixed cover 13 top, fixed cover 13 inside is provided with first internal screw thread, first fastener 14 threaded connection is in fixed cover 13, first fastener 14 bottom threaded connection is on drum 2, the head of first fastener 14 restricts test layer fibreboard 11 and can not break away from guide pin layer fibreboard 1, be provided with probe 3 on the guide pin layer fibreboard 12, test layer fibreboard 11 elastic connection is on the uppermost layer fibreboard 12, the first through-hole on test layer fibreboard 11 is worn to locate at probe 3 top, be provided with the locating pin 4 on the test layer fibreboard 11, a plurality of wire reel 21 is connected with a plurality of relative ends 21, a plurality of wire reel 22 are connected to the opposite end, a plurality of wire reel 22 is connected to the other end of wire reel 2. The fixed sleeve 13, the locating pin 4 and the supporting column 15 are positioned on the outer side of the locating pin 4, and when a PCB is tested, the lengths of the tops of the fixed sleeve 13, the locating pin 4 and the supporting column 15 extending out of the fiber board 11 of the testing layer are smaller than the extending height of the locating pin 4, so that the PCB test cannot be influenced.

An elastic connecting piece 5 is arranged between the test layer fiberboard 11 and the uppermost guide pin layer fiberboard 12, the elastic connecting piece 5 comprises a first shell 51, a second shell 52 and a first elastic element 53, the first shell 51 is inserted into the test layer fiberboard 11, the second shell 52 is inserted into the uppermost guide pin layer fiberboard 12, one end of the first elastic element 53 is fixedly arranged on the first shell 51, the other opposite end is fixedly arranged on the second shell 52, and the first elastic element 53 can specifically adopt a spring to realize the elastic connection of the test layer fiberboard 11.

Be provided with cushion 6 between two-layer adjacent guide pin layer fibreboard 12, cushion 6 both ends are provided with symmetrical arrangement's plug 61, and plug 61 is pegged graft in guide pin layer fibreboard 12, and cushion 6 can effectively guarantee the interval between two-layer adjacent guide pin layer fibreboard 12, guarantees the stable in structure of dial 1, guarantees the test effect.

The dial 1 further comprises a supporting column 15, the guide pin layer fiberboard 12 is fixedly arranged on the supporting column 15, the top of the supporting column 15 penetrates through the test layer fiberboard 11, the structural stability of the dial 1 is further improved, and the test effect is ensured.

The locating pin 4 is elastically connected to the uppermost guide pin layer fiberboard 12, and the top of the locating pin 4 penetrates through the test layer fiberboard 11. On the one hand, the locating pins 4 keep extending out of the length of the test layer fiberboard 11 along with the descending of the test layer fiberboard 11, and on the other hand, the locating pins 4 are arranged in a floating mode, so that collision damage can not occur between the locating pins 4 when the PCB is placed and offset occurs.

The wire coil 2 below is provided with base 7, is provided with a plurality of spliced pole 71 on the base 7, and spliced pole 71 supports in wire coil 2 below, and wire coil 2 passes through second fastener 23 fixed mounting on spliced pole 71, and second fastener 23 threaded connection realizes the installation of wire coil 2 on spliced pole 71, and base 7 is convenient for install microneedle testing arrangement.

Working principle: when the microneedle test device is used, two are usually required to be matched. One is arranged below, the position is unchanged, the other is arranged above, and the direction of the needle dial faces to the microneedle test device below and descends under the action of the driving device. The fixed sleeve 13, the locating pin 4 and the supporting column 15 between the two microneedle test devices are arranged in a staggered way. When the PCB is tested by the micro-needle testing device, the PCB is placed on the testing layer fiberboard 11 and between the positioning pins 4, and then the other micro-needle testing device is driven by the driving device to descend, the testing layer fiberboard 11 is extruded, and the top of the probe 3 is exposed out of the testing layer fiberboard 11 and is contacted with the PCB, so that the test is realized. Under the conventional state, the top of the probe 3 in the micro-needle testing device is arranged in the first through hole on the test layer fiberboard 11, the probe 3 is protected and hidden by the test layer fiberboard 11, the head of the test probe is effectively protected, the test probe is prevented from being bent and broken, and the testing effect of the micro-needle testing jig is ensured. When the PCB is tested, the test layer fiber board 11 is extruded, and the top of the probe 3 is exposed out of the test layer fiber board 11 and is contacted with the PCB, so that the test is realized.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a microneedle test device, its characterized in that includes needle dial (1) and drum (2), needle dial (1) is including fixed cover (13), test layer fibreboard (11) and a plurality of layer guide pin layer fibreboard (12), a plurality of layers guide pin layer fibreboard (12) parallel arrangement, guide pin layer fibreboard (12) fixed mounting is in on fixed cover (13), fixed cover (13) bottom fixed mounting is in on drum (2), fixed cover (13) top wears to locate test layer fibreboard (11), fixed cover (13) inside is provided with first internal screw thread, first fastener (14) threaded connection is in fixed cover (13), first fastener (14) bottom threaded connection is in on drum (2), be provided with probe (3) on guide pin layer fibreboard (12), test layer fibreboard (11) elastic connection is in on the uppermost layer guide pin layer fibreboard (12), probe (3) top wears to locate on test layer fibreboard (11) first layer (11), be provided with a plurality of wire coil (21) on a plurality of stacked fibre board (2), one end of the wire (22) is connected with the probe (3), and the opposite end is connected with the ox horn connector.

2. A microneedle test device according to claim 1, characterized in that an elastic connection member (5) is arranged between the test layer fibre board (11) and the uppermost layer of the guide pin layer fibre board (12), the elastic connection member (5) comprises a first shell (51), a second shell (52) and a first elastic element (53), the first shell (51) is inserted on the test layer fibre board (11), the second shell (52) is inserted on the uppermost layer of the guide pin layer fibre board (12), one end of the first elastic element (53) is fixedly mounted on the first shell (51), and the opposite end is fixedly mounted on the second shell (52).

3. The microneedle testing device according to claim 1, characterized in that a cushion block (6) is arranged between two adjacent layers of the guide pin layer fiber boards (12), two ends of the cushion block (6) are provided with symmetrically arranged plug connectors (61), and the plug connectors (61) are plugged in the guide pin layer fiber boards (12).

4. A microneedle test device according to claim 1, characterized in that the dial (1) further comprises a support column (15), the guiding-needle layer fibreboard (12) is fixedly mounted on the support column (15), and the top of the support column (15) is arranged through the test layer fibreboard (11).

5. A microneedle test device according to claim 1, characterized in that the positioning pins (4) are elastically connected to the uppermost-layer of the guiding-pin-layer fibreboard (12), and the tops of the positioning pins (4) are arranged through the test-layer fibreboard (11).

6. The microneedle testing device according to claim 1, characterized in that a base (7) is arranged below the wire coil (2), a plurality of connecting columns (71) are arranged on the base (7), the connecting columns (71) are propped against the lower side of the wire coil (2), the wire coil (2) is fixedly arranged on the connecting columns (71) through second fastening pieces (23), and the second fastening pieces (23) are connected to the connecting columns (71) in a threaded mode.