WO2019114040A1

WO2019114040A1 - Press ram

Info

Publication number: WO2019114040A1
Application number: PCT/CN2017/119279
Authority: WO
Inventors: 高长华
Original assignee: 昆山精讯电子技术有限公司
Priority date: 2017-12-15
Filing date: 2017-12-28
Publication date: 2019-06-20
Also published as: CN107909953A

Abstract

A press ram comprising press blocks (30) mounted on a bottom plate (10) and used for fixing one or more circuit boards (20) and moving blocks (40) having the same quantity as that of the circuit boards (20). The bottom plate (10) is used for the placement of a test board; the circuit boards (20) are inserted in the press blocks (30), and either end of each circuit board (20) is exposed on the two sides of each press block (30); the moving blocks (40) are slidably connected to the press blocks (30) and are in one-to-one correspondence with the upper portion of one end of each circuit board (20); the press blocks (30) are provided with first adjusting assemblies for driving the moving blocks (40) to press down the circuit boards (20) to crimp the corresponding end portions of the circuit boards (20) with products placed on the test board and second adjusting assemblies for driving the moving blocks (40) to rise up, the first adjusting assemblies and the second adjusting assemblies having the same quantity as that of the moving blocks (40) and being in one-to-one correspondence with the moving blocks (40).

Description

Indenter

Technical field

The present disclosure relates to the field of organic light-emitting diode (OLED) display technology, for example, to a pressure head.

Background technique

The OLED module (ie, the OLED display module) needs to perform performance tests in various aspects before leaving the factory. In order to detect the aging life of the OLED module, it is generally required to perform an aging life test on the OLED module in a high temperature environment.

During the aging life test, the external test signal needs to be connected to the OLED module to be tested through the test ram. Therefore, the crimping accuracy and the crimping strength of the test ram are particularly important, and different structural designs may cause the indenter. The crimping accuracy and the crimping strength are different. In the relevant design, the indenter is usually designed to be directly pressed down, and the downward pressure of the indenter is not adjustable, which often causes the crimping force to be too large or too small, resulting in damage or poor conduction of the module to be tested.

In addition, different test circuit boards are required for different OLED module aging life test to adapt to the test circuit on the OLED module to be tested. The aging test indenter in the related art is usually fixed to the test substrate. When the test circuit board is replaced, the components on the ram assembly need to be disassembled one by one, and then the test circuit board is removed from the ram assembly, and the new test circuit board is replaced. After re-assembly, the disassembly process is complicated and time-consuming, which greatly affects the test efficiency.

Summary of the invention

The present disclosure proposes an indenter that can quickly and conveniently mount and remove a test board and a product to be tested (eg, an OLED module).

The present disclosure provides a ram comprising: a compact block mountable on a bottom plate and at least one movable block, the press block being configured to fix at least one circuit board, wherein the at least one movable block and the at least one The number of the circuit boards is equal, the pressure block is disposed on the circuit board, and two ends of the circuit board are respectively exposed on both sides of the pressure block;

The movable block is slidably connected to the pressing block, and the movable block is disposed above one end of the circuit board, and is disposed in one-to-one correspondence with one end of the circuit board;

The pressing block is provided with a first adjusting component and a second adjusting component, and the first adjusting component is configured to drive the movable block to press the circuit board to make the circuit board correspond to the movable block. Pressing a product to be tested on a test board placed on the bottom plate, the second adjustment component being configured to drive the movable block up, the first adjustment component and the second adjustment component and the The number of active blocks is equal, and are respectively set in one-to-one correspondence with the active blocks.

Optionally, the movable block includes: a connecting portion and a pressing portion perpendicularly connected to the connecting portion; the pressing block is provided with a groove equal to the movable block for inserting the connecting portion, A sliding groove is disposed on a bottom wall of the groove, and the sliding groove is connected with a micro wire rail, and the micro wire rail is connected to the connecting portion.

Optionally, the first adjusting component comprises at least one first spring and at least one adjusting screw, and the pressing block is provided on the side of the groove with a hole for inserting the first spring and the adjusting screw ,among them,

One end of the first spring is located in the hole, and the other end of the first spring is connected to the pressing portion;

The adjustment screw is located in the bore and presses against the first spring.

Optionally, a guiding column is connected between the pressing block and the pressing portion, and the movable block is slidable along the guiding column.

Optionally, the pressing block is provided with a slot for mounting the second adjusting component adjacent to a sidewall of the movable block, and the second adjusting component comprises a lever supporting seat and a lever.

The lever support seat is mounted on the bottom wall of the slot;

The lever passes through the slot toward the movable block and is rotatably coupled to the lever support, and the lever abuts the movable block toward an end of the movable block.

Optionally, the lever and the top wall of the slot and the lever and the bottom wall are respectively connected by a second spring.

Optionally, the movable block is provided with an opening, the opening is rotatably connected with a pin, and the pin shaft is movably sleeved with a rubber sleeve; the lever is facing the end of the movable block The part is pressed against the rubber sleeve.

Optionally, a first slot is disposed on the two sidewalls of the parallel groove, and two sidewalls parallel to the connecting portion are respectively disposed with a second slot corresponding to the first slot. The first slot and the second slot are used for inserting a tab to limit the movable block to a set position.

Optionally, an elastic strip is disposed on a bottom edge region of the pressing portion.

Optionally, a circuit board adapter board electrically connected to the circuit board is disposed between the pressure block and the bottom plate.

The indenter provided by the present disclosure can apply a force to the movable block through the first adjusting component, so that the movable block presses the circuit board with the product to be tested at a suitable pressure, and quickly installs the product to be tested on the test board; When the product is taken out, the movable block can be detached from the product by the second adjusting component, and the product can be taken out more conveniently.

DRAWINGS

FIG. 1 is a schematic perspective view of a pressure head provided by an embodiment.

FIG. 2 is a schematic perspective structural view of a movable block in an indenter according to an embodiment.

FIG. 3 is a schematic perspective structural view of a pressure block in an indenter according to an embodiment.

4 is a schematic structural view of another angle of a pressure block in an indenter according to an embodiment.

Fig. 5 is a front view of Fig. 1.

Figure 6 is a cross-sectional view taken along line A-A of Figure 5;

In the picture: 10-base plate, 20-circuit board, 30-press block, 31-groove, 32-slot, 33-miniature rail, 34-through slot, 35-first slot, 36-hole, 40 - movable block, 41 - connecting part, 42 - pressing part, 43 - opening, 44 - pin shaft, 45 - rubber sleeve, 46 - second socket, 47 - silicone strip, 51 - first spring, 52 - adjustment Screw, 53-guide post, 61-bar support, 62-bar, 63-second spring, 70-tab, 80-board adapter.

Detailed ways

The technical solutions of the present application will be described below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 to 6, the indenter of the present application is mounted on a base plate 10, the indenter comprising: a pressure block 30 mountable on the base plate 10 and at least one movable block 40, the clamp block 30 being arranged to fix at least one line The board 20, wherein the at least one movable block 40 is equal in number to the at least one circuit board 20. The circuit board 20 described herein may be a Flexible Printed Circuit (FPC) or a Printed Circuit Board (PCB), or may be other types of electrical connection materials. The pressing block 30 is disposed on the circuit board 20, and both ends of the circuit board 20 are exposed on both sides of the pressing block 30, respectively. The movable block 40 is slidably connected to the pressing block 30. The movable block 40 is disposed above one end of the circuit board 20 and is disposed in one-to-one correspondence with one end of the circuit board 20; the pressing block 30 is provided with a first adjusting component and a second An adjustment component, the first adjustment component is configured to drive the movable block 40 to press the circuit board 20 to press the end of the circuit board 20 corresponding to the movable block 40 with the product to be tested placed on the test board on the bottom plate 10, the second adjustment The component is configured to drive the movable block 40 up, wherein the first adjustment component and the second adjustment component are equal in number to the movable block 40, and are respectively disposed in one-to-one correspondence with the movable block 40. The pressure of the movable block 40 against the circuit board 20 and the product is moderate and adjustable by the first adjustment assembly and the slidable connection arrangement of the movable block 40 on the clamp 30. Through the above design, the pressing block 30, the movable block 40, the first adjusting component and the second adjusting component are combined into a single indenter, which can be integrally assembled and disassembled on the bottom plate 10, and the whole of the pressing head can be removed to realize the circuit board. Replacement improves the replacement efficiency of the board.

Optionally, the movable block 40 in the present application includes: a connecting portion 41 and a pressing portion 42 perpendicularly connected to the connecting portion 41; the pressing block 30 is provided with a groove equal to the number of the movable blocks 40 for inserting the connecting portion 41 31. In order to slidably connect the movable block 40 and the pressing block 30, the present application is provided with a sliding slot 32 on the bottom wall of the recess 31. The sliding slot 32 is connected with the micro-track 33, and the micro-track 33 is connected to the connecting portion 41. can. For example, under the action of the first adjustment component, the movable block 40 can be moved down along the micro-track 33, and the circuit board 20 is pressed down; under the action of the second adjustment component, the movable block 40 can be moved up along the micro-track 33. Lifted from the circuit board 20.

Optionally, the first adjusting component includes at least one first spring 51 and at least one adjusting screw 52. The pressing block 30 is provided on the side of the groove 31 with a hole 36 for inserting the first spring 51 and the adjusting screw 52, wherein One end of the first spring 51 is located in the hole 36 and the other end of the first spring 51 is connected to the pressing portion 42; the adjusting screw 52 is located in the hole 36 and presses against the first spring 51. The screwing adjustment screw 52 can adjust the compression amount of the first spring 51, and the elastic potential energy generated by the first spring 51 acts on the pressing portion 42, and the movable block 40 is moved down along the micro-track 33, and the circuit board 20 is pressed downward to A suitable pressure crimps the circuit board 20 to the product to be tested. Optionally, the embodiment of the present application may be provided with holes 36 for inserting the first spring 51 and the adjusting screw 52 on both sides of each groove 31, and the two holes 36 are symmetrically arranged with respect to the center line of the groove 31. A first spring 51 and an adjusting screw 52 are inserted into each of the holes 36. Thus, the pressure of the first spring 51 is adjusted from both sides of the recess 31, so that the pressing portion 42 can stably press the circuit board 20 to ensure the crimping effect of the circuit board 20 and the product to be tested. At the same time, by screwing in or unscrewing the adjusting screw 52, the lowering degree of the pressing portion 42 is also adjusted, and the crimping effect of the pressing head is improved.

Optionally, in order to smoothly move the movable block 40 along the micro-track 33 , the present application connects a guide post 53 between the pressing block 30 and the pressing portion 42 , and the movable block 40 can slide along the guiding post 53 . The guide post 53 serves to guide the sliding.

Optionally, the embodiment of the present application is provided with a through slot 34 for mounting the second adjusting component on the side wall of the pressing block 30 adjacent to the movable block 40. The second adjusting component includes a lever supporting base 61 and a lever 62, wherein The lever support seat 61 is mounted on the bottom wall of the slot 34; the lever 62 passes through the slot 34 toward the movable block 40 and is rotatably coupled to the lever support 61, and the lever 62 faces the end of the movable block 40. The active block 40 is pressed. Using the lever principle, the lever 62 is pressed, and the lever 62 presses against the end of the movable block 40 to lift the movable block 40 upward, so that the movable block 40 moves up along the micro-track 33, so that the movable block 40 is separated from the product to be tested, and The product to be tested is taken out.

After the product to be tested is taken out, in order to smoothly move the movable block 40 up and down, the lever 62 and the top wall of the through groove 34, and the lever 62 and the bottom wall, respectively, may be connected by the second spring 63. The pair of levers 62 of the second spring 63 generate an elastic force, so that when the lever 62 is used to move the movable block 40, the lever 62 slowly rotates relative to the lever support 61 on the one hand, and the second spring on the other hand. Under the elastic action of 63, the lever 62 can be smoothly returned to the original position.

In order to make the lever 62 can press against the movable block 40, the embodiment of the present application can provide an opening 43 on the movable block 40. The opening 43 is rotatably connected with a pin 44, and the pin 44 is movably sleeved with a rubber sleeve. 45; the lever 62 presses against the rubber sleeve 45 toward the end of the movable block 40.

When the lever 62 lifts the movable block 40, the movable block 40 needs to be restricted to the set position. Optionally, a first slot 35 is respectively disposed on two parallel sidewalls of the recess 31, and a second slot 46 corresponding to the first slot 35 is respectively disposed on two parallel sidewalls of the connecting portion 41. The first slot 35 and the second slot 46 are used for inserting the insert 70, and the movable block 40 can be restricted to the set position by the insert 70.

In order to prevent the movable block 40 from crushing the product, in the embodiment of the present application, optionally, an elastic strip 47 is disposed on the bottom edge region of the pressing portion 42, and the elastic strip 47 may be a silicone strip or a rubber strip or the like. The elastic strip 47 is in elastic contact with the circuit board 20 and the product to be tested. In order to ensure stable crimping of the circuit board 20 and the test board, damage to the circuit board 20 and the product to be tested can be avoided under a slight downward pressure. In addition, between the pressing block 30 and the bottom plate 10, a circuit board adapter board 80 capable of electrically connecting to the circuit board 20 is disposed, and the product to be tested on the test board is tested by the circuit board adapter board 80.

In summary, in the embodiment of the present application, by pressing the pressing block 30, a force can be applied to the movable block 40, so that the movable block 40 presses the circuit board 20 with the product to be tested with a suitable pressure, and the product to be tested is quickly installed in the test. On the board. When the product to be tested is taken out, only the lever 62 is pressed, and the lever block principle is used to disengage the movable block 40 from the product to be tested, and the product to be tested is conveniently taken out.

Industrial applicability

The present disclosure provides a pressure head through which a force can be applied to a movable block, and the movable block can press the circuit board with the product to be tested at a suitable pressure, thereby quickly mounting the product to be tested on the test board. With the second adjustment component, the movable block can be separated from the product to be tested, and the product to be tested can be taken out more conveniently.

Claims

An indenter comprising: a compact block mountable on a bottom plate and at least one movable block, the press block being arranged to fix at least one circuit board, wherein the at least one movable block and the at least one circuit board The plurality of blocks are disposed on the circuit board, and two ends of the circuit board are respectively exposed on both sides of the pressing block;

The movable block is slidably connected to the pressing block, and the movable block is disposed above one end of the circuit board, and is disposed in one-to-one correspondence with one end of the circuit board;

The pressing block is provided with a first adjusting component and a second adjusting component, and the first adjusting component is configured to drive the movable block to press the circuit board to make the circuit board correspond to the movable block. Pressing a product to be tested on a test board placed on the bottom plate, the second adjustment component being configured to drive the movable block up, the first adjustment component and the second adjustment component and the The number of active blocks is equal, and are respectively set in one-to-one correspondence with the active blocks.
The indenter according to claim 1, wherein the movable block comprises: a connecting portion and a pressing portion vertically connected to the connecting portion; and the pressing block is provided with a supply of the same number as the movable block A groove is formed in the connecting portion, and a sliding groove is disposed on a bottom wall of the groove, and the sliding groove is connected with a micro wire rail, and the micro wire rail is connected to the connecting portion.
The indenter according to claim 2, wherein said first adjustment assembly comprises at least one first spring and at least one adjustment screw, said clamp being provided on said side of said groove for said first spring And the hole into which the adjusting screw is inserted, wherein

One end of the first spring is located in the hole, and the other end of the first spring is connected to the pressing portion;

The adjustment screw is located in the bore and presses against the first spring.
The indenter according to claim 3, wherein a guide post is coupled between the press block and the pressing portion, and the movable block is slidable along the guide post.
The indenter according to claim 2, wherein said press block is provided with a through groove for mounting said second adjustment member on a side wall of said movable block, said second adjustment assembly comprising a lever support And the lever,

The lever support seat is mounted on the bottom wall of the slot;

The lever passes through the slot toward the movable block and is rotatably coupled to the lever support, and the lever abuts the movable block toward an end of the movable block.
The ram according to claim 5, wherein said lever and said top wall of said slot, and said lever and said bottom wall are respectively connected by a second spring.
The indenter according to claim 5 or 6, wherein the movable block is provided with an opening, the opening is rotatably connected with a pin shaft, and the pin shaft is movably sleeved with a rubber sleeve; The lever is pressed against the rubber sleeve toward the end of the movable block.
The indenter according to claim 7, wherein the two sides of the groove are parallel with a first slot, and the two parallel sides of the connecting portion are respectively provided with the first a second slot corresponding to the slot, the first slot and the second slot are for inserting a tab to limit the movable block to a set position.
The indenter according to claim 2, wherein an elastic strip is provided on a bottom edge region of the pressing portion.
The indenter according to claim 1, wherein a circuit board adapter plate electrically connected to the circuit board is disposed between the pressure block and the bottom plate.