JP4675783B2 - Plate unit with electrode - Google Patents

Description

  The present invention relates to a plate member unit with electrodes such as a so-called crime prevention plate glass, which detects breakage of a plate glass and issues breakage information to a security system or the like.

  A plate glass for crime prevention that attaches an electrode module to a plate glass having a transparent conductive film, detects a change in the resistance value of the conductive film, and reports damage information to a security system or the like is well known.

  Moreover, not only when using a plate glass with a transparent conductive film as a single plate, but also a laminated glass with an intermediate film of PVB or EVA, or a multilayer with an air layer sealed by a spacer around the plate glass. It is also well known when used as a glass.

  The transparent conductive film is formed by sputtering on the float glass as a conductive film such as ITO by secondary processing, or the conductive film is formed on-line with titanium, chromium, tin, indium or their oxides during glass production.

The following Patent Document 1 is known as a structure of an electrode module for connecting a lead wire to the conductive film.
JP 2000-277243 (Abstract)

  In the conventional security glass, the position, material, shape, and processing method of the electrode module have not been sufficiently studied in order to reliably detect a change in resistance value. For this reason, there are cases in which the strength of the attachment is small and the lead wire can be removed during construction, or the resistance value fluctuates with time.

  In addition, it is difficult to attach the terminal board, so that the workability is not good or defects are likely to occur.

  The main object of the present invention is to provide an electrode-attached plate material unit that has good adhesion in mounting of lead wires and terminal plates, mounting of terminal plates and connecting portions, and mounting of connecting portions to conductive films and does not easily come off. .

  Another object of the present invention is to prevent defects during the production of laminated glass and multi-layer glass, improve workability during construction, and ensure the strength in the state of being housed in a window. It is to provide a plate material unit with electrodes that can be a good fit.

A plate unit with an electrode for crime prevention glass, in which a conductive film is formed on the surface of a plate made of a glass plate, and lead wires are connected to the conductive film through a plurality of electrode modules in order to detect a change in resistance of the conductive film. The electrode modules are provided at the four corners of the plate material, and each electrode module is formed long along the upper and lower sides of the plate material, and the electrode module is a conductive adhesive. Is thicker than a portion of one metal foil of the metal foil tape, and the metal foil tape coated on one side of the metal foil tape is bonded to the conductive film via the adhesive. before from the metal foil tape and a terminal plate connected to the lead wire with brazed at both sides in the width direction of the metal foil tape covering at least a portion of the upper surface of the metal foil tape A conductive paste containing silver particles coated on and protruding from the conductive film, and the terminal board protrudes from the edge of the plate material toward the outside of the plate material, thereby protruding from the end surface of the plate material An end portion of a lead wire is connected to the projecting portion, the lead wire in the vicinity of the projecting portion is disposed along an end surface of the plate member, and the lead wire and the projecting portion along the end surface The connecting portion is sealed with a resin sealing material, wherein the connection portion includes a first band-shaped first metal foil tape covered with the conductive paste, and the first current-carrying portion. And a pedestal including a second metal foil tape that is wider and shorter than the metal foil tape, and substantially the entire surfaces of the first and second metal foil tapes are bonded onto the conductive film. The ends of the first and second metal foil tapes Characterized in that it is connected to each other in a mutually superposed state.

According to the present invention, since the metal foil tape is bonded to the conductive film through the adhesive, a large connection area can be obtained without impairing the structure of the conductive film, and the connection resistance between the conductive film and the connection portion can be obtained. Since the resistance value of the adhesive is generally sufficiently smaller than the resistance value of the conductive film, detection of a change in the resistance value of the conductive film is not affected. Further, since the adhesive can be firmly bonded over a wide area, there is no possibility that the resistance value of the connection changes with time.
On the other hand, since the terminal plate to which the lead wire is connected is connected to the conductive film via the metal foil tape, the terminal plate is attached to the metal foil thicker than the conductive film, unlike the case where the terminal plate is directly connected to the thin conductive film. The solder can be “brazed”, and the board and the foil can be firmly connected even with a small bonding area.
That is, since a metal foil thicker than this conductive film is bonded to an extremely thin conductive film, and a terminal board thicker than this metal foil is welded to the metal foil, the thickness is gradually increased. There is no unreasonable connection, the resistance value of each connection portion becomes sufficiently small, and the change in resistance value over time can be prevented.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, a conductive film 10 is formed on the surface (one surface) 1 f of the plate glass 1. As the conductive film 10, a known metal thin film, metal oxide thin film, or the like can be used (for example, JP 2000-277243 A), and it is not always necessary to provide the entire surface of the plate glass 1.

  A plurality of electrode modules M are provided at the end of the glass sheet 1. Each of the electrode modules M is connected to a known resistance detector (not shown: see, for example, Japanese Patent No. 3677749) for detecting a change in resistance of the conductive film 10 via the lead wire 2.

  Each electrode module M includes a connection portion 3 and a terminal plate 4.

As the connection portion 3 attached to the conductive film 10, elongated first and second copper foil tapes (first and second metal foil tapes) 31, 32 having a conductive adhesive applied on one side are used. As a result, the copper foil is firmly bonded to the conductive film 10 by the conductive adhesive, the conductivity of the connection portion 3 is increased by the conductive component in the conductive adhesive, and the connection resistance between the conductive film 10 and the connection portion 3 is increased. The value is sufficiently smaller than the resistance value of the conductive film 10, and does not affect the detection of the change in the resistance value of the conductive film 10. Further, there is no possibility that the connection resistance value changes with time.
In addition, the thickness (for example, about 0.1 mm to 0.2 mm) of the terminal board 4 is larger than the thickness (for example, about 50 μm to 100 μm) of each of the first and second copper foil tapes 31 and 32. Also thick.

As shown in FIG. 2, the connection portion 3 includes a current-carrying portion 31 made of an elongated strip-shaped first copper foil tape in contact with the conductive film 10 and a pedestal portion 32 made of a substantially rectangular second copper foil tape. The pedestal portion 32 is first attached to the conductive film 10 in the vicinity of the edge of the plate glass, and the energization portion 31 is attached to a part of the pedestal portion 32.
The width W2 of the pedestal portion 32 (for example, about 4 mm to 8 mm) is larger than the width W1 of the energization portion 31, and the length L2 of the pedestal portion 32 (for example, about 15 mm to 25 mm) is the length of the energization portion 31. It is shorter than L1 (for example, about 30 mm to 1000 mm).

The width W3 (for example, about 4 mm to 8 mm) of the terminal plate 4 in FIG. 4 is equal to or slightly larger than the width W2 (FIG. 2) of the pedestal portion 32.
Since the pedestal portion 32 is wider than the energization portion 31, it is easier to solder the terminal plate 4 than when the terminal plate 4 is soldered to the thin energization portion 31, and the pedestal portion 32 is made of the terminal plate 4. Since it becomes a standard of positioning of a solder position when soldering one end with solder 33, positioning becomes easy.
In addition, a drop and stability of connection resistance are ensured by putting solder also in the said electricity supply part 31. FIG.

Prior to soldering the terminal board 4 (an example of soldering 33), as shown in FIG. 3, the silver paste 34 is coated over the energizing part 31 and the pedestal part 32 of the connecting part 3 by silk printing or the like. Is done.
The silver paste 34 is naturally dried and then baked at a low temperature. The silver paste 34 covers the entire current-carrying part 31 and the periphery of the pedestal part 32 wrapped around the current-carrying part 31 to prevent the copper foil tapes 31 and 32 from being peeled off, and the solder to be placed on the current-carrying part 31. 33 is easily attached.

  Here, the silver paste 34 is formed by dispersing fine silver particles in a binder to form a paste, and is baked after printing. The silver paste 34 exhibits conductivity by contact between the silver particles. Since the silver paste 34 cannot be made too thick (for example, several μm to 20 μm), the resistance value becomes large and the resistance value is not stable at a long distance. Therefore, in this embodiment, by using a copper foil tape coated with a conductive adhesive, the resistance value is stabilized to be low, and further, the silver paste 34 is overlapped on the copper foil so as to overlap the copper foil. It prevents the tape from peeling off and improves adhesion.

The terminal plate 4 of FIG. 4 is soldered to the connection portion 3 and the solder 33 in the pedestal portion 32 in a state in which a part protrudes from the edge 1 e of the plate glass 1. A small hole 42 is provided in the protruding portion 41 protruding from the edge 1e of the plate glass 1 in FIG. 1, and the lead wire 2 is securely fixed to the protruding portion 41 by soldering one end of the lead wire 2 with the coating removed. , Never pull out.
The lead wire 2 may be soldered to the terminal plate 4 in advance before the terminal plate 4 is soldered to the connecting portion 3.

  As shown in FIG. 7A, the electrode module M is provided at, for example, four corners of the plate glass 1, but along the upper and lower sides when the plate glass 1 is attached to the window frame regardless of the aspect ratio of the plate glass 1. When the sliding window is provided, it is easy to detect a change in the glass resistance value when the glass pane 1 is broken and penetrated at the sash crescent position.

  In the case of a single plate, after the connecting portion 3, the terminal plate 4 and the lead wire 2 are attached, the lead wire 2, the terminal plate 4 and the connecting portion 3 are connected to the silicone seal (FIG. An example of a sealing material: Cover and protect with S or the like.

The length of the lead wire 2 is set to a dimension obtained by adding about 50 cm to the total width and height of the plate glass 1, so that when the plate glass 1 is fitted on the sash in the field, either side leads to one side. The lead wires 2 can be drawn out from the holes provided in the sash through the sash to the external wall or housing.
By laying the power supply line near the end of the lead wire in advance, it is easy to connect the glass breakage detector (resistance detector), the power supply line, and the lead wire on site.

  When the four lead wires 2 shown in FIG. 7 are connected to the glass breakage detector and the power supply by connecting the upper and lower sides to each other, in the case of a sliding window, when the glass plate 1 is broken and penetrated at the sash crescent position Moreover, it becomes easy to detect a change in the resistance value of the glass sheet 1.

Invasion To be able to focus detect the input which is likely locations is preferably provided an electrode module M at the four corners of the glass plate 1, in this case, achieving a reduction in cost by reducing the amount of expensive silver paste 34 be able to.

  In the case of the laminated glass of FIG. 6B, after attaching the connecting portion 3, the terminal plate 4, and the lead wire 2, the intermediate film 11 such as PVB or EVA is stacked by a necessary thickness and the other side glass plate 1A is placed. Then, heat the glass with an autoclave or vacuum device to make a laminated glass. The part of the electrode module M of the intermediate film 11 may be adjusted so that a part of the intermediate film 11 is cut off as necessary and the part corresponding to the electrode module M is not thickened.

  The lead wire 2 may be soldered to the protruding portion 41 of the terminal plate 4 that partially protrudes after the laminated glass is manufactured. The length of the lead wire 2 is the same as that of the single plate.

  The lead wire 2, the protruding portion 41 that partially protrudes, and the end surface of the laminated glass are covered with a silicone seal S for protection. In this case, the protruding portion 41 and the lead wire 2 can be protected by covering the end face of the laminated glass with a silicone seal in the direction perpendicular to the laminated glass end face along the length direction of the connecting portion 3 with about 50 mm to 100 mm.

  As shown in FIG. 7A, the lead wire 2 is preferably fixed to both surfaces of the laminated glass with the adhesive tape 100 in the vicinity of the end of the silicone seal S to prevent the lead wire 2 from being pulled off during transportation or construction. In addition, it is preferable that the free lead wire is also rolled and bundled and attached to one side of the laminated glass with an adhesive tape.

  In the case of the multi-layer glass or the laminated multi-layer glass shown in FIG. 7C, the periphery of the spacer containing the desiccant is sealed with a sealing material 101 of silicone or polysulfide in order to keep dry air. Therefore, since it can seal with the said raw material including a terminal board and a part of lead wire, the silicone seal | sticker of a glass end surface becomes unnecessary.

The present invention can be applied with the security for the plate glass units.

It is a schematic perspective view which expands and shows the part of the electrode module of the board | plate material unit with an electrode concerning one Example of this invention. It is the top view and side view which show the adhesion state of the 1st and 2nd copper foil tape. It is the top view and side view which show the state which covered the 2nd copper foil tape with the electrically conductive paste. It is the top view and side view of an electrode module. It is the top view and side view which show the state which connected the lead wire to the same electrode module. It is the top view and sectional drawing which show the electrode module in a laminated glass. (A) is a plane layout diagram of an electrode module shown with a part of the plate glass omitted in the plate unit with electrode, (b) is a side view showing the laminated glass, and (c) is a side view showing the laminated multilayer glass. .

Explanation of symbols

1: Plate material (glass plate)
1e: Edge 10: Conductive film 2: Lead wire 3: Connection part 31: Current-carrying part 32: Base part 33: Conductive paste 4: Terminal board 41: Projection part L1: Length of current-carrying part L2: Length of base part M: Electrode module S: Silicone seal W1: Width of current-carrying part W2: Width of base part W3: Width of terminal board

Claims (2)

A plate unit with an electrode for crime prevention glass, in which a conductive film is formed on the surface of a plate made of a glass plate, and lead wires are connected to the conductive film through a plurality of electrode modules in order to detect a change in resistance of the conductive film. Because
The electrode modules are provided at the four corners of the plate material, and each electrode module is formed long along the upper and lower sides of the plate material, and the electrode module is
A connection part in which a metal foil tape coated with a conductive adhesive on one side is bonded onto the conductive film via the adhesive;
A terminal plate that is thicker than one metal foil portion of the metal foil tape and brazed onto the metal foil tape and connected to the lead wire ;
A conductive paste that covers at least a part of the upper surface of the metal foil tape and includes silver particles applied on both sides in the width direction of the metal foil tape so as to protrude from the metal foil tape onto the conductive film;
The terminal plate has a protruding portion protruding from the end surface of the plate material by protruding from the edge of the plate material toward the outside of the plate material, and the end portion of the lead wire is connected to the protruding portion,
The lead wire in the vicinity of the projecting portion is disposed along the end surface of the plate member, and the lead wire and the projecting portion along the end surface are sealed with a resin sealing material,
Here, the connection portion includes a current-carrying portion including a thin strip-shaped first metal foil tape that is entirely covered with the conductive paste, and a width that is wider and shorter than the first metal foil tape. A pedestal portion including two metal foil tapes, and substantially the entire surfaces of the first and second metal foil tapes are bonded onto the conductive film, and ends of the first and second metal foil tapes. A plate unit unit with electrodes connected in a state where they are overlapped with each other. 2. The plate member unit with an electrode according to claim 1, wherein the terminal plate is brazed and connected to the pedestal portion.

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