CN217484353U

CN217484353U - Test needle mould

Info

Publication number: CN217484353U
Application number: CN202121189952.4U
Authority: CN
Inventors: 林小波; 杨小华; 朱永祥; 杨水良; 刘方锐; 刘小彪
Original assignee: China Display Optoelectronics Technology Huizhou Co Ltd
Current assignee: China Display Optoelectronics Technology Huizhou Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-09-23
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses a test needle mould, including base and a plurality of test electrode, a plurality of test electrodes set up in the base along the first direction interval, every test electrode includes test section and linkage segment that connects gradually in the direction of keeping away from the base, the linkage segment is used for the electricity to connect the test box, the tip of test section has the test surface that is used for being connected with the electrode electricity of the test connector that awaits measuring, the test surface extends the setting along the second direction, because the test surface extends the setting along the second direction, the electrode of the test connector that awaits measuring has increased the area of contact of electrode and test surface, make the electrode of the test connector that awaits measuring can have the contact with the test electrode all the time in the second direction, the electrode of the test connector that has realized different proportions switches on with the electricity of test electrode, and the electrode of the test connector that avoids awaiting measuring takes place to interfere or the short circuit and damage with the base.

Description

Test needle mould

Technical Field

The utility model relates to an electronic product technical field, in particular to test needle mould.

Background

LCM (LCD Module), namely an LCD display module and an LCD module, refers to a component which assembles peripheral circuit PCB (printed circuit board), a flexible printed circuit FPC (flexible printed circuit), a backlight source, and the like of a liquid crystal display device, a connecting piece, a control and drive device, and the like, and is widely applied to mobile phones, digital cameras, digital video cameras, digital photo frames, game machines, learning machines, vehicle-mounted GPS (global positioning system), vehicle-mounted displays, handheld terminals of palm computers, and the like, and human-computer interaction products of smart homes, internet of things multimedia, and the like.

In the LCM structure, a flexible circuit board is generally connected with a female connector on a PCB of the whole machine through a male connector (part of a plane golden finger) in an interlocking way to complete electrical conduction, so that a touch display function is realized, and in the production process, due to defects and the like caused by raw materials and operation of each process flow station, the test selection link needs to meet the delivery standard of a customer through a special test fixture and a drive program. At present, a test fixture generally completes electrical performance test, quality standard inspection and the like of LCM by simulating a female connector, pin mold detection and the like of a complete machine of a client, and in a manual test link, due to tooling mold machining precision deviation, large manual clamping randomness, deformation of a flexible circuit board and the like, risks of interference damage, short circuit and the like of male connectors and clamping edges of test pin films in different proportions exist in a test process, and further, potential quality hazards exist in the electrical performance of products.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a test needle mould aims at improving prior art, because worker's mould machining precision deviation, artifical screens randomness are big, flexible line way board warp etc. in artifical test link, leads to having the public seat connector of different proportions and test needle membrane screens arris to interfere risks such as damage, short circuit in the testing process, and then leads to product electrical property to have the quality hidden danger.

In order to achieve the above object, the utility model provides a test needle die, include:

a base; and the number of the first and second groups,

the test electrodes are arranged on the base at intervals along a first direction, each test electrode comprises a test section and a connecting section which are sequentially connected in the direction away from the base, the connecting section is used for electrically connecting the test box, the end part of the test section is provided with a test surface which is used for being electrically connected with the electrode of the connector of the test piece to be tested, and the test surface extends along a second direction.

Optionally, the first direction and the second direction are arranged crosswise;

the test needle die further comprises a limiting structure arranged on the base, and the limiting structure is used for being matched with a matching structure of the to-be-tested connector when the to-be-tested connector is close to the base so as to limit the to-be-tested connector along the first direction.

Optionally, the test surface is disposed lengthwise along the second direction; and/or the presence of a gas in the gas,

the test surface is arranged in a zigzag manner.

Optionally, the test pin die further comprises:

the movable seat is positioned above the base and movably arranged relative to the base so as to have a working position close to the base and a non-working position far away from the base, one side of the movable seat, which is far away from the base, is provided with an installation area, the installation area is used for installing the connector of the to-be-tested piece, the installation area is provided with a plurality of through holes in a penetrating manner along the vertical direction, and the through holes are arranged corresponding to the test sections; and the number of the first and second groups,

and the driving assembly is arranged on the base and used for driving the movable seat to move, so that when the movable seat moves to the working position, the test section extends upwards from the through hole and is electrically connected with an electrode of a connector to be tested.

Optionally, the drive assembly comprises:

the pressing plate is positioned above the movable seat, opposite to the movable seat and movably arranged, and has a movable stroke close to the movable seat;

the floating block is elastically and telescopically arranged on the lower end surface of the pressing plate along the vertical direction through an elastic piece;

when the pressing plate moves towards the movable seat, the floating block pushes the movable seat to move towards the position close to the base to the working position.

Optionally, the pressing plate has a mounting end and a pressing end, and the mounting end is rotatably mounted on the base, so that the pressing end can move towards the movable seat and move away from the movable seat.

Optionally, the pressing end of the pressing plate is provided with a buckling part, and the base is provided with a movable buckle corresponding to the buckling part, so that when the pressing end moves towards the movable seat, the movable buckle is matched with the buckling part to fasten the pressing end to the base.

Optionally, an elastic buffer is arranged between the movable seat and the base.

Optionally, a plurality of through holes are arranged through the movable seat along the movable direction of the movable seat, the through holes are arranged at intervals along the circumferential direction of the movable seat, a screw shaft is inserted into each through hole, and the threaded end of each screw shaft is in threaded connection with the base;

elastic buffer spare is including corresponding a plurality of spring that the screw axle set up, and is a plurality of the spring is located the sliding seat with between the base, and the suit is in a plurality of that correspond on the screw axle.

Optionally, a magnetic part is further disposed on the movable seat, and the magnetic part is configured to fix the connector of the to-be-tested device to the movable seat in an adsorbing manner when the to-be-tested device connector is close to the base.

The utility model provides an among the technical scheme, because the test face is followed the second direction extends the setting, has increased the electrode of the test piece connector that awaits measuring with the area of contact of test face makes the electrode of the test piece connector of awaiting measuring can all the time the second direction with there is the contact in the test electrode, has realized the electrode of the test piece connector that awaits measuring of different proportions and test electrode's electric switch on, and avoids the electrode of the test piece connector that awaits measuring with the base takes place to interfere or the short circuit and damages.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a test pin die provided by the present invention;

FIG. 2 is a schematic exploded perspective view of the test pin die of FIG. 1;

FIG. 3 is a schematic structural view of the test electrode of FIG. 1;

FIG. 4 is a cross-sectional view of the test pin die of FIG. 1;

fig. 5 is a partial structural view of the test pin die of fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication, the directional indication is only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In the LCM structure, a flexible circuit board is generally connected with a female connector on a PCB of the whole machine through a male connector (part of a plane golden finger) in an interlocking way to complete electrical conduction, so that a touch display function is realized, and in the production process, due to defects and the like caused by raw materials and operation of each process flow station, the special test fixture and a drive program are required to test and select links to meet the delivery standard of a customer. At present, a test fixture generally finishes LCM electrical performance test, quality standard inspection and the like by simulating a female connector, a pin die detection and the like of a client complete machine, and in a manual test link, due to tooling precision deviation, large manual clamping randomness, deformation of a flexible circuit board and the like, risks of interference damage, short circuit and the like of male connectors and clamping edges of test pin films in different proportions exist in a test process, so that potential quality hazards exist in the electrical performance of products.

In order to achieve the above object, the utility model provides a test needle die. Fig. 1 to 5 show an embodiment of a testing needle mold provided by the present invention.

Referring to fig. 1 to 3, in the present embodiment, the testing needle mold 100 includes a base 1 and a plurality of testing electrodes 2, the plurality of testing electrodes 2 are disposed on the base 1 at intervals along a first direction, each testing electrode 2 includes a testing section 21 and a connecting section 22 sequentially connected in a direction away from the base 1, the connecting section 22 is used for electrically connecting a testing box, an end portion of the testing section 21 has a testing surface 21a for electrically connecting with an electrode of a connector 1000 of a device to be tested, and the testing surface 21a extends along a second direction.

The utility model provides an among the technical scheme, because test face 21a is followed the second direction extends the setting, has increased treat test piece connector 1000 the electrode with test face 21 a's area of contact makes treat test piece connector 1000 the electrode be in the second direction can all the time with test electrode 2 has the contact, has realized the electrode of the treat test piece connector 1000 of different proportions and test electrode 2's electric switch-on, and has avoided treat test piece connector 1000 the electrode with the base 1 takes place to interfere or the short circuit and damages.

It should be noted that, considering that the electrodes of the connector 1000 to be tested are generally arranged in a row along the second direction, in the embodiment of the present application, a plurality of the test electrodes 2 arranged at intervals along the first direction form a test electrode group, the test electrode group is arranged in at least two, and at least two of the test electrode groups are arranged at intervals along the second direction, so as to be matched with the electrodes of the connector 1000 to be tested to complete the electrical performance test.

In the prior art, the testing electrode 2 is usually set as a probe electrode, the diameter of the probe electrode is set to 0.2mm, the distance between two adjacent probe electrodes along the first direction is 0.2mm, a plurality of probe electrodes arranged at intervals along the first direction form a probe electrode group, the probe electrode group is set to at least two groups along the second direction, the distance between the two groups of probe electrode groups is 0.8mm, when the connector 1000 to be tested and the testing needle mold 100 have angular deflection during testing, the electrode of the connector 1000 to be tested and the testing section 21 of the testing electrode 2 are dislocated, so that the electrode of the connector 1000 to be tested and the testing needle mold 100 interfere to damage and short circuit, in an embodiment of the present application, the testing surfaces 21a of a plurality of testing electrodes 2 are all set to have a length of 0.5mm along the second direction, when the electrodes of the connector 1000 to be tested and the test section 21 of the test electrode 2 are displaced by 0.35mm when the distance between the electrodes of the connector 1000 to be tested and the test section 21 of the test electrode 2 is 0.35mm, the length of the test surface 21a in the second direction is less than 0.5mm, so that the electrodes of the connector 1000 to be tested and the test electrode 2 are always in contact, thereby avoiding the situation that the electrodes of the connector 1000 to be tested and the test section 21 of the test electrode 2 in the second direction are not in conduction or are in short circuit, thereby smoothly completing the electrical performance test.

In order to be right the test piece connector 1000 is followed spacing of first direction, refer to fig. 2, in the embodiment of this application, first direction with the second direction cross arrangement, test needle mould 100 is still including locating limit structure 11 on the base 1, limit structure 11 is used for when the test piece connector 1000 that awaits measuring is close to base 1, with the cooperation of the cooperation structure 200 of test piece connector 1000 that awaits measuring, in order to right the test piece connector 1000 that awaits measuring is followed spacing of first direction avoids the test piece connector 1000 that awaits measuring is followed first direction activity influences the electric property test of test piece connector 1000 that awaits measuring.

Specifically, the limiting structure 11 and the fitting structure 200 are correspondingly configured as a groove extending along the second direction and a protrusion adapted to the groove, and the to-be-tested piece connector 1000 is limited by the groove and the protrusion adapted to the protrusion.

It should be noted that, in the embodiment of this application, the groove is set to be the U-shaped groove, so as to pass through the U-shaped groove edge the second direction is extended and two first lateral walls that set up relatively are right the connector 1000 to be tested is followed the spacing of first direction, so as to pass through the U-shaped groove edge the second lateral wall that the first direction is extended and set up with the lateral wall of connector 1000 to be tested offsets, when avoiding testing, the connector 1000 to be tested is followed the second direction activity.

In order to realize the extending arrangement of the test surface 21a along the second direction, specifically, referring to fig. 3, in the embodiment of the present application, the test surface 21a is disposed in a longitudinal shape along the second direction, for example, the test surface 21a may be disposed in a long strip shape, a square shape, and the like, which is not limited in the present application.

In order to make the electrode of the connector 1000 to be tested and the testing surface 21a electrically connected effectively, in the embodiment of the present application, referring to fig. 3, the testing surface 21a is arranged in a zigzag manner, so that the biting force between the electrode of the connector 1000 to be tested and the testing surface 21a is increased, the contact effect is better, and the electrode of the connector 1000 to be tested and the testing surface 21a are prevented from sliding.

It should be noted that, the distance between two adjacent teeth in the saw teeth is 0.1mm, and the electrode of the connector 1000 to be tested is engaged by the saw teeth, so as to prevent the electrode of the connector 1000 to be tested from sliding and affecting the electrical performance test.

Referring to fig. 4, the testing needle mold 100 further includes a movable seat 4 and a driving component 5, the movable seat 4 is located above the base 1 and movably disposed relative to the base 1 to have a working position close to the base 1 and a non-working position far away from the base 1, one side of the movable seat 4 departing from the base 1 is provided with a mounting area 41, the mounting area 41 is used for mounting the connector 1000 to be tested, the mounting area 41 is provided with a plurality of through holes 42 (refer to fig. 5) along the vertical direction, the plurality of through holes 42 are disposed corresponding to the plurality of testing sections 21, the driving component 5 is disposed on the base 1, the movable seat 4 is driven by the driving component 5 to move, so that when the movable seat 4 moves to the working position, the testing sections 21 extend upwards from the through holes 42 and are electrically connected with the electrodes of the connector 1000 to be tested, so as to be convenient for to the test of the electrical property of piece waiting to test, simple structure, it is effectual.

Specifically, referring to fig. 4, the driving assembly 5 includes a pressing plate 51 and a floating block 52, the pressing plate 51 is located above the movable seat 4 and is in relative and movable setting with the movable seat 4, the pressing plate 51 has an activity stroke close to the movable seat 4, the floating block 52 is installed on the lower end surface of the pressing plate 51 through an elastic piece along the up-down direction elastically stretching, wherein, when the pressing plate 51 faces the movable seat 4 moves, the floating block 52 pushes the movable seat 4 to move to the working position towards being close to the base 1, so set up, because there is a compression space between the floating block 52 and the pressing plate 51, when the pressing plate 51 faces the movable seat 4 moves, the floating block 52 elastically stretches out and draws back, and is not prone to crushing the connector 1000 to be tested.

There are various ways to realize that the pressing plate 51 and the movable seat 4 are movably disposed, for example, the pressing plate 51 may move in a translational manner along the up-down direction relative to the movable seat 4, the pressing plate 51 may rotate relative to the movable seat 4, in the embodiment of the present application, the pressing plate 51 rotates relative to the movable seat 4, specifically, referring to fig. 4, the pressing plate 51 has a mounting end 51a and a pressing end 51b, the mounting end 51a is rotatably mounted on the base 1, so that when the pressing end 51b moves towards the movable seat 4, the pressing plate 51 drives the floating block 52 to move so as to push the movable seat 4 to move to the working position, so that when the pressing end 51b moves back to the movable seat 4, the movable seat 4 may move from the working position to the non-working position, and the structure is simple, the operation is easy.

In order to lock and fix the pressing plate 51 which drives the movable seat 4 to move to the working position, a pressing end 51b of the pressing plate 51 is provided with a buckling part 511b, the base 1 is provided with a movable buckle 6 corresponding to the buckling part 511b, so that when the pressing end 51b moves towards the movable seat 4, the movable buckle 6 is matched with the buckling part 511b to fasten and fix the pressing end 51b to the base 1, thereby facilitating the electrode of the connector 1000 to be tested to be electrically connected with the test electrode 2 to complete the electrical performance test.

In order to realize the sliding seat 4 is relative base 1 activity, sliding seat 4 with be equipped with elastic buffer between the base 1, so set up, through elastic buffer supports sliding seat 4 is when the extrusion institute elastic buffer, for sliding seat 4 provides the activity space, thereby realizes sliding seat 4 is relative base 1 activity, simple structure, it is effectual.

Referring to fig. 5, movable seat 4 runs through along its activity direction and is equipped with a plurality of through-holes 43, and is a plurality of through-holes 43 are followed 4 peripheral direction intervals of movable seat are laid, every equal cartridge has screw shaft 7 in the through-hole 43, screw shaft 7's screw thread end with 1 threaded connection of base, elastic buffer spare is including corresponding a plurality of springs that screw shaft 7 set up, and is a plurality of the spring is located movable seat 4 with between the base 1, and the suit is in a plurality of that correspond on the screw shaft 7, so set up, can realize movable seat 4 is relative 1 activity of base, and prevent among the test procedure test electrode 2 and the test of awaiting measuring connector 1000 hard contacts, mutual crushing.

In other embodiments, the elastic buffer may be a component made of an elastic material, such as a rubber block, a sponge block, and the like, which is not limited in this application.

Considering when testing, the examination of awaiting measuring a connector 1000 exists the condition of deformation, refer to fig. 5, still be provided with magnetism portion 8 on the sliding seat 4, through magnetism portion 8 is in wait to test a connector 1000 is close to when base 1, will await measuring a connector 1000 adsorbs fixedly extremely sliding seat 4 avoids waiting to test a connector 1000 because of warping or breaking away from in the deformation installation zone 41, for follow-up wait to test a connector 1000 with 2 electricity connections of test electrode are made ready.

In the present application, the first direction, the second direction, and the up-down direction all belong to relative directions, and may be adjusted according to specific conditions, which is not limited in the present application.

The aforesaid only is the optional embodiment of the utility model discloses a to not consequently restrict the patent scope of the utility model, all be in the utility model discloses a under the utility model conceiving, utilize the equivalent structure transform that the content of the description and the attached drawing was done, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A test pin die, comprising:

a base; and the number of the first and second groups,

2. The test pin die of claim 1, wherein the first direction and the second direction are arranged crosswise;

the test needle mold further comprises a limiting structure arranged on the base, and the limiting structure is used for being matched with a matching structure of the to-be-tested connector when the to-be-tested connector is close to the base so as to limit the to-be-tested connector along the first direction.

3. The test pin die of claim 1, wherein said test face is elongated in said second direction; and/or the presence of a gas in the gas,

the test surface is arranged in a zigzag manner.

4. The test pin die of claim 1, further comprising:

5. The test pin die of claim 4, wherein the drive assembly comprises:

the floating block is elastically and telescopically arranged on the lower end surface of the compression plate along the vertical direction through an elastic piece;

6. The test pin die of claim 5, wherein the hold-down plate has a mounting end and a hold-down end, the mounting end being rotatably mounted to the base such that the hold-down end is movable toward and away from the movable block.

7. The test pin die of claim 6, wherein the pressing end of the pressing plate is provided with a buckle portion, and the base is provided with a movable buckle corresponding to the buckle portion, so that the pressing end buckle is fastened to the base by engaging the movable buckle with the buckle portion when the pressing end moves toward the movable seat.

8. The test pin die of claim 4, wherein an elastomeric cushion is disposed between said movable seat and said base.

9. The test pin die as claimed in claim 8, wherein the movable seat has a plurality of through holes passing through along the moving direction thereof, the plurality of through holes are arranged at intervals along the circumferential direction of the movable seat, a screw shaft is inserted into each through hole, and the threaded end of the screw shaft is in threaded connection with the base;

10. The test pin die as claimed in claim 4, wherein the movable seat is further provided with a magnetic portion for fixing the connector of the device under test to the movable seat by suction when the connector of the device under test is close to the base.