KR102690669B1 - A Flex Fixing Guide Module for Testing Chip On Flex Electrode Terminal of Flexible Printed Circuit Board - Google Patents

Abstract

The present invention provides a flex fixing guide module for inspecting chip-on-flex electrode terminals of a flexible circuit board, which includes: a main stage which forms a fixing groove capable of fixing and accommodating a flex electrode terminal of a flexible circuit board loaded from the outside in correspondence with an inspection position, so as to guide and fix the position of the chip-on-flex electrode terminal when automatically inspecting the chip-on-flex electrode terminal of the flexible circuit board, a fixing guide part which is installed on an upper side of one side of the main stage and fixes by point contact corresponding to the left and right sides and the front end of the flex electrode terminal; and a terminal pusher part which is installed on the main stage corresponding to the fixing guide part and supports the lower surface of the flex electrode terminal while elastically pushing the flex electrode terminal so that it comes into contact with the fixing guide part.

Description

{A Flex Fixing Guide Module for Testing Chip On Flex Electrode Terminal of Flexible Printed Circuit Board}

The present invention relates to a flex fixing guide module for inspecting chip-on-flex electrode terminals of flexible circuit boards, and more specifically, to guide and fix the position of chip-on-flex electrode terminals when automatically inspecting chip-on-flex electrode terminals of flexible circuit boards. This relates to a flex fixation guide module for inspecting chip-on flex electrode terminals of flexible circuit boards that can efficiently provide accuracy and fixation of the inspection position.

Generally, electronic devices such as display modules include a printed circuit board (PCB) and flex electrode terminals such as a flexible printed circuit board (FPCB) connected to the printed circuit board.

At this time, the flex electrode terminal is a component to minimize the connector area through which signals are transmitted in order to thin and miniaturize the display module. When performing the process of automatically driving and inspecting the display module, the flex electrode terminal among the flexible circuit boards applied to the display module is used. The terminal part is tested by applying pressure from the top to connect it to the connector.

Referring to FIG. 1, if we look roughly at the method of aligning the flex electrode terminals of the flexible circuit board of the conventional display module, in order to automatically drive and inspect the display module (1), the flexible circuit board of the printed circuit board of the display module (1) In order to adjust the position of the flex electrode terminal 20 connected to (10), the folded portion 11 is mounted using an SMT (surface mount technology) process using adhesive tape or resin, and the amount of lead or reflow ( Depending on the temperature of the reflow, the electrode terminal rotates or moves in a specific direction for mounting.

During this adhesion process, a problem occurs in which the position and arrangement angle of the flex electrode terminal 20 are not formed consistently due to an alignment error (SMT error) of the flex electrode terminal 20. In other words, the alignment error of the flex electrode terminal 20 due to the error causes breakage and surface damage to the flex electrode terminal 20 during operation for driving inspection, causing discard of the display module 1 or causing inspection malfunction. There was a problem that this would cause re-examination, etc.

In order to solve problems such as product damage and inspection errors during automatic operation inspection of such display modules, there is a need for technology that can automate the alignment method for the press electrode terminals of flexible circuit boards among display modules.

As a prior art disclosed in relation to a device for inspecting a flexible circuit board as described above, Republic of Korea Patent Publication No. 1924413 (November 27, 2018) describes a substrate on which a substrate to be inspected (P), which is a flexible circuit board, is seated and set. Setting module; A position adjustment module capable of position adjustment through left and right horizontal movement and provided with a bridge substrate whose OLB end overlaps the OLB end of the inspection target board; a substrate connection module that pressurizes the overlapping OLB ends and brings them into contact with each other so that the inspection target substrate and the bridge substrate can be connected; It includes an alignment control module that determines the alignment state between the OLB ends and automatically controls the alignment, wherein the alignment control module is arranged at the OLB end of the bridge substrate while the OLB ends are in pressure contact with each other. Depending on whether a short circuit occurs between the reference terminal and the neighboring terminals on the left and right, the reference terminal is connected to the neighboring terminal via the OLB terminal of the board to be inspected. It is configured to automatically align the module substrate by including a short determination unit that determines whether or not it is in contact with the module, and an operation control unit that controls the operation of the position adjustment module and the board connection module according to the determination of the short circuit determination unit. A flexible circuit board inspection device capable of automatic alignment is known.

However, in the above-described prior art, when pressing for inspection of the connector of the board to be inspected, that is, the flex electrode terminal of the flexible circuit board, the pressing member simply presses the flex electrode terminal, so the flexible flex electrode terminal is lifted or shaken from the inspection block. There was a problem that accurate and precise inspection was difficult.

KR Registered Patent Publication No. 10-1924413 (2018.11.27.)

The present invention is intended to solve the above problems. It is configured to fix the pressed state of the flex electrode terminals among the flexible circuit boards loaded into the inspection position from all directions, thereby automating the inspection alignment position and improving inspection accuracy and precision. The purpose is to provide a flex fixing guide module for inspecting chip-on flex electrode terminals of flexible circuit boards that can increase

The flex fixing guide module for inspecting chip-on flex electrode terminals of flexible circuit boards proposed by the present invention includes a main stage that forms a seating groove capable of seating flex electrode terminals of a flexible circuit board loaded from the outside in response to an inspection position; A fixing guide part installed on one upper side of the main stage and fixed by point contact in response to the left and right side ends and the front end of the flex electrode terminal; A terminal pusher unit is installed on the main stage in response to the fixed guide unit, supports the lower surface of the flex electrode terminal, and elastically pushes the flex electrode terminal into contact with the fixed guide unit.

The fixed guide part forms at least one of the 'ㄷ' shape, 'ㄱ' shape, 'ㄴ' shape, and straight shape, and forms a support protrusion capable of point contact with the flex electrode terminal corresponding to the seating groove of the main stage. It consists of a guide film and a fixing rivet that secures the guide film to the main stage.

The guide film includes mounting holes formed symmetrically on both sides to enable mounting in response to the fixing rivet, and a path open on one side corresponding to the mounting hole to guide the guide film so that it can be fitted into the fixing rivet. Provide a guide.

The guide film is constructed using any one of polyimide (PI) film, kapton tape, and metal foil.

The guide film is made of a thin film with a thickness of 0.1 to 0.02 mm.

The terminal pusher unit includes a terminal support member that contacts the lower surface of the flex electrode terminal and is installed to move up and down on the main stage, and is provided corresponding to the lower part of the terminal support member and has a repulsive force for upward movement of the terminal support member. It constitutes a loading reaction means that generates.

The loading repulsion means can be constructed of a magnetic member of the same pole that is installed embedded in the terminal support member and the main stage and generates a repulsive force for upward movement of the terminal support member. It is also possible to construct a spring member that generates a repulsive force due to elasticity between the main stage and the terminal support member.

According to the flex fixation guide module for inspecting chip-on flex electrode terminals of flexible circuit boards according to the present invention, when inspecting flex electrode terminals of flexible circuit boards, the flex electrode terminals are provided with a uniform point contact fixation structure in multiple directions toward the flex electrode terminals. It is constructed to form a fixed structure that utilizes the repulsive force caused by the pressing of the electrode terminal, preventing fluid phenomena such as shaking or twisting during the inspection process, and mechanically correcting the X/Y position of the connector lead on the device to prevent inspection errors in advance. This has the effect of improving inspection accuracy and precision as well as prevention.

In addition, the flex fixing guide module for inspecting chip-on-flex electrode terminals of a flexible circuit board according to the present invention is configured to be provided with a guide path that can fit and couple the guide film in the fixed guide part, thereby improving the installation and replacement efficiency of the guide film. There is an effect that can be improved.

Figure 1 is a configuration diagram schematically showing a method of aligning flex electrode terminals of a flexible circuit board in a conventional display module.
Figure 2 is a plan view showing one embodiment according to the present invention.
Figure 3 is a cross-sectional view showing one embodiment according to the present invention.
Figure 4 is a perspective view showing the guide film of the fixed guide portion in one embodiment according to the present invention.
Figures 5 (a) to (c) are plan views each showing first to third examples of the guide film in one embodiment according to the present invention.
Figures 6 (a) to (c) are partial enlarged views showing first to third examples of support protrusions in the guide film in one embodiment according to the present invention, respectively.
Figure 7 is a cross-sectional view schematically showing the use state of the terminal pusher part in one embodiment according to the present invention.
Figure 8 is a cross-sectional view showing a second embodiment of the terminal pusher portion in one embodiment according to the present invention.

The present invention includes a main stage that forms a seating groove capable of seating and receiving the flex electrode terminal of a flexible circuit board loaded from the outside in response to an inspection position; A fixing guide part installed on one upper side of the main stage and fixed by point contact in response to the left and right side ends and the front end of the flex electrode terminal; A terminal pusher portion installed on the main stage in response to the fixed guide portion and supporting the lower surface of the flex electrode terminal in contact with the terminal pusher portion that elastically pushes the flex electrode terminal into contact with the fixed guide portion. The technology features a flex fixation guide module for on-flex electrode terminal inspection.

Next, a preferred embodiment of the flex fixing guide module for inspecting chip-on flex electrode terminals of a flexible circuit board according to the present invention will be described in detail with reference to the drawings.

First, an embodiment of the flex fixing guide module for inspecting chip-on flex electrode terminals of a flexible circuit board according to the present invention, as shown in FIGS. 2 and 3, includes a main stage 100, a fixing guide unit 200, It includes a terminal pusher unit 300.

As shown in FIGS. 2 and 3, the main stage 100 seats and supports a flexible circuit board loaded from the outside, and the flex electrode terminal (F) on the flexible circuit board is inspected on the upper surface of the main stage 100. A seating groove 110 capable of receiving seating is formed corresponding to the position.

A mounting groove 120 is formed in the main stage 100 so that the fixing guide part 200 and the terminal pusher part 300 can be installed in separate positions. That is, the main stage 100 has a first mounting groove 120a that can be installed while accommodating the fixing guide part 200 on the upper surface corresponding to the inspection position of the flex electrode terminal (F), and the main stage 100 ), a second mounting groove 120b that can be installed is formed on the seating groove 110 while accommodating the terminal pusher part 300.

The fixing guide unit 200 performs the function of fixing the flex electrode terminal (F) introduced into the seating groove 110 so that it can be positioned in a uniform, horizontal state as a whole.

The fixing guide unit 200 is installed on one upper side of the main stage 100, that is, in the first mounting groove 120a.

As shown in Figures 2 and 3, the fixing guide part 200 is a structure that fixes the flex electrode terminal (F) by contact and fixes it by point contact corresponding to the left and right side ends and the front end of the flex electrode terminal (F). , constitutes a guide film 210 and a fixing rivet 220.

As shown in FIG. 4, the guide film 210 is made of a thin film structure and is positioned on at least one of the three sides of the flex electrode terminal (F) introduced into the seating groove 110 of the main stage 100. It forms a shape that can be positioned in response to .

The guide film 210 has at least one of the following shapes: 'ㄷ' shape, 'ㄱ' shape, 'ㄴ' shape, and straight shape.

The first embodiment of the guide film 210 has a 'ㄷ' shaped cross-sectional shape, as shown in (a) of FIG. 5. That is, the guide film 210 forms a 'ㄷ' shape so that it can wrap both left and right sides and the front side of the flex electrode terminal (F).

The second embodiment of the guide film 210 has an 'ㄱ' or 'ㄴ' cross-sectional shape, as shown in (b) of FIG. 5. That is, the guide film 210 is formed to cover two sides (one of the left and right sides and the front side) of the flex electrode terminal (F) in a package.

The third embodiment of the guide film 210 has a straight shape capable of one-point support, as shown in Figure 5 (c). That is, the guide film 210 is configured to correspond to only one of the three sides of the flex electrode terminal (F).

The guide film 210 is provided with a support protrusion 211 formed to enable point contact with the flex electrode terminal (F) corresponding to the seating groove 110. That is, as the support protrusion 211 protrudes from the guide film 210 in response to the entry path of the flex electrode terminal (F) in the vertical direction toward the seating groove 110, it is supported and fixed by point contact.

The guide film 210 is made of any one of polyimide (PI) film, kapton tape, and metal foil.

In general, polyimide film is a film that can withstand high temperatures (above 400℃) or low temperatures (-269℃). It is a thin, flexible, cutting-edge, high-performance industrial material that maintains stable performance due to its strong chemical and abrasion resistance.

Since the guide film 210 is composed of a thin film with a thickness of 0.1 to 0.02 mm, it is possible to secure ductility for smooth entry of the product.

As the support protrusion 211 is configured to have a '∨' cross-sectional shape, as shown in (a) of FIG. 6, it is possible to minimize the contact area with the flex electrode terminal (F).

In addition, the support protrusion 211 is configured to have a semicircular cross-sectional shape, as shown in (b) of FIG. 6, thereby minimizing the contact area with the flex electrode terminal (F) and simultaneously achieving stable support efficiency. It is possible.

In addition, since the support protrusion 211 is configured to have a square cross-sectional shape, as shown in (c) of FIG. 6, it is possible to achieve more stable support efficiency of the flex electrode terminal (F).

The guide film 210 is provided with mounting holes 213 that are symmetrically formed on both sides so that they can be mounted corresponding to the fixing rivets 220.

The mounting port 213 is provided with a guide path 215 that forms a path open on one side.

The guide 215 guides the guide film 210 to fit into the fixing rivet 220. That is, in a state in which the fixing rivet 220 is coupled to the main stage 100, the guide path 215, which is an open path toward the mounting hole 213, is formed to secure the guide film 210 to the guide path 215. It is configured so that it can be pushed toward the rivet (220).

The fixing rivet 220 is coupled to the main stage 100, and the fixing rivet 220 is connected from the upper surface of the main stage 100 to secure a space where the guide film 210 can be fitted. The heads are combined to form a spaced apart structure.

The fixing rivet 220 is configured to be provided at least one (two in FIG. 2) on the main stage 100.

The terminal pusher unit 300 contacts and supports the lower surface of the flex electrode terminal (F), which is pressed and supplied from the outside toward the seating groove 110, and allows the flex electrode terminal (F) to come into contact with the fixing guide unit (200). It performs an elastic pushing function.

As shown in FIGS. 2 and 3, the terminal pusher unit 300 is installed on the seating groove 110 of the main stage 100 at a position corresponding to the fixed guide unit 200. That is, the terminal pusher unit 300 is installed in the second mounting groove 120b in the seating groove 110 of the main stage 100, and is connected to the terminal support member 310 and the loading reaction means 320. Compose.

The terminal support member 310 is configured in a block shape to directly contact and support the lower surface of the flex electrode terminal (F) entering the seating groove 110.

The terminal support member 310 is inserted into the second mounting groove 120b of the main stage 100 and is configured to move vertically up and down.

The loading repulsion means 320 is provided to correspond to the lower part of the terminal support member 310, and is configured to be arranged and coupled between the terminal support member 310 and the main stage 100.

In the above, the terminal support member 310 and the main stage 100 are formed to have an installation groove into which the loading reaction means 320 can be mounted and coupled.

The loading repulsion means 320 generates a repulsive force for upward movement of the terminal support member 310. That is, as shown in (a) of FIG. 7, the loading repulsion means 320 maintains the terminal support member 310 spaced upward from the bottom surface of the second mounting groove 120b during normal times. 310), and when a pressing pressure is applied toward the terminal support member 310 due to the entry of the flex electrode terminal (F) as shown in (b) of FIG. 7, a repulsive force is generated from the loading reaction means 320. is created to move the terminal support member 310 upward, so that the upper surface of the flex electrode terminal (F) is fixed to the support protrusion 211 of the fixing guide portion 200 by point contact.

The loading repulsion means 320 is a structure capable of generating a repulsive force according to the pressing pressure applied to the terminal support member 310, and is constructed by applying a magnet or spring structure.

As shown in FIG. 3, the first embodiment of the loading repulsion means 320 is configured to move the terminal support member 310 upward while spaced apart within the second mounting groove 120b. It is constructed by applying a magnetic member with the same pole that generates a repulsive force for movement.

The loading repulsion means 320 are installed embedded in the terminal support member 310 and the main stage 100, respectively, so that they face each other.

As shown in FIG. 8, the second embodiment of the loading repulsion means 320 consists of a spring member that generates a repulsive force due to elasticity between the main stage 100 and the terminal support member 310.

That is, according to the flex fixing guide module for inspecting chip-on flex electrode terminals of a flexible printed circuit board according to the present invention configured as described above, when inspecting the flex electrode terminals of a flexible printed circuit board, the flex electrode terminals are inspected in a single direction in multiple directions toward the flex electrode terminals. In addition to the point contact fixation structure, it is composed of a fixation structure that uses the repulsion force caused by the pressing of the flex electrode terminal, preventing movement phenomena such as shaking or twisting during the inspection process, and mechanically adjusts the X/Y position of the connector lead on the device. By making corrections, it is possible to prevent inspection errors in advance and improve inspection accuracy and precision.

In addition, since the present invention is configured to provide a guide path into which the guide film can be fitted in the fixed guide part, it is possible to improve the installation and replacement efficiency of the guide film.

In the above, a preferred embodiment of the flex fixation guide module for inspecting chip-on flex electrode terminals of a flexible circuit board according to the present invention has been described. However, the present invention is not limited thereto and is provided in the claims, the specification of the invention, and the accompanying drawings. It is possible to implement various modifications within the scope, and this also falls within the scope of the present invention.

100: Main stage 110: Seating groove
120: Mounting groove 120a: First mounting groove
120b: Second mounting groove
200: fixed guide part 210: guide film
211: support protrusion 213: mounting hole
215: Guide 220: Fixed rivet
300: terminal pusher part 310: terminal support member
320: Loading reaction means F: Flex electrode terminal

Claims (8)

a main stage forming a seating groove for seating and receiving the flex electrode terminal of a flexible circuit board loaded from the outside at an inspection position;
A fixing guide part installed on one upper side of the main stage and fixed by point contact to the left and right sides and the front end of the flex electrode terminal;
A terminal pusher unit installed on the main stage in response to the fixed guide unit, contacting and supporting the lower surface of the flex electrode terminal and elastically pushing the flex electrode terminal into contact with the fixed guide unit,
The fixed guide part forms at least one of the 'ㄷ' shape, 'ㄱ' shape, 'ㄴ' shape, and straight shape, and forms a support protrusion capable of point contact with the flex electrode terminal in correspondence with the seating groove of the main stage. A flex fixing guide module for inspecting chip-on flex electrode terminals of a flexible circuit board, including a guide film and a fixing rivet for fixing the guide film on the main stage.
delete In claim 1,
The guide film includes mounting holes formed symmetrically on both sides to enable mounting in response to the fixing rivet, and a path open on one side corresponding to the mounting hole to guide the guide film so that it can be fitted into the fixing rivet. Flex fixing guide module for inspecting chip-on flex electrode terminals of flexible circuit boards including a guide.
In claim 1,
The guide film is a flex fixation guide module for inspecting chip-on-flex electrode terminals of a flexible circuit board made of any one of polyimide (PI) film, kapton tape, and metal foil.
In claim 1,
The guide film is a flex fixing guide module for inspecting chip-on-flex electrode terminals of a flexible circuit board made of a thin film with a thickness of 0.1 to 0.02 mm.
In claim 1,
The terminal pusher unit includes a terminal support member that contacts the lower surface of the flex electrode terminal and is installed to move up and down on the main stage, and is provided corresponding to the lower part of the terminal support member and has a repulsive force for upward movement of the terminal support member. A flex fixation guide module for inspecting chip-on flex electrode terminals of a flexible circuit board, including a loading reaction means for generating a .
In claim 6,
The loading repulsion means is installed embedded on the terminal support member and the main stage, respectively, and is made of a magnetic member of the same pole that generates a repulsive force for upward movement of the terminal support member. Chip-on-flex electrode terminal inspection of a flexible circuit board For flex fixed guide module.
In claim 6,
The loading repulsion means is a flex fixing guide module for inspecting chip-on-flex electrode terminals of a flexible circuit board, wherein the loading repulsion means is a spring member that generates a repulsion force due to elasticity between the main stage and the terminal support member.

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