JP2019126982A - Metal laminate, female connector, male connector and connector structure - Google Patents

Abstract

To provide a metal laminate capable of achieving excellent fitting strength.SOLUTION: There is provided a metal laminate comprising: a resin sheet A having at least one thermoplastic resin layer; and a metal layer B laminated on one face of the resin sheet A, an elastic modulus of the resin sheet A is 4-7.2 GPa, an elastic modulus of the metal layer B is 100-140 GPa.SELECTED DRAWING: Figure 1

Description

  The present invention relates to metal laminates. More particularly, the present invention relates to a metal laminate, a female connector, a male connector and a connector structure.

  In recent years, in the field of electronic materials, the trend toward lighter products has become a major trend, centering on electronic devices for mobile applications. Among them, a connector is an important component for connecting a cable and a cable, a cable and a substrate, and a substrate and a substrate, but the reduction in height or the space saving is required. In addition, FPC (Flexible Printed Circuits, hereinafter the same) using an insulating layer of a polyimide film, a liquid crystal polymer film, and the like has recently been used not only for mobile electronic devices but also for LED lighting applications, in-vehicle substrate applications, etc. It is expanding rapidly.

  For example, in Patent Document 1, the insulating base, the at least one through hole formed in the thickness direction of the desired position of the insulating base, and the insulating in a state where at least the opening of the through hole is closed. A circuit board comprising a conductive circuit bonded to one side of a base material and a conductor circuit formed by processing a metal foil having spring elasticity, and a connector structure using the circuit board are proposed. It is done.

JP, 2007-281253, A

  Under the circumstances described above, various methods for integrating the FPC and the connector have been studied in order to reduce the weight of products centered on mobile electronic devices. There is no one that has developed a strong strength. The technology proposed in Patent Document 1 is a circuit board comprising a metal foil and a film having spring characteristics and having a through hole, and the metal foil has a thickness of 50 μm or less and a spring limit value of 350 N / mm or more. It is a circuit board characterized by a certain thing, and a connector structure using the same.

  However, the technique proposed in Patent Document 1 may not be able to further improve the fitting strength.

  Therefore, the present invention has been made in view of such circumstances, a metal laminate capable of realizing excellent fitting strength, a female connector having excellent fitting strength, a male connector, and a connector structure. The main purpose is to provide.

  As a result of earnest research to solve the above-mentioned object, the present inventor cannot avoid annealing the material in the thermocompression bonding process, so that only a soft material can be obtained. The knowledge that the combined strength was not obtained was obtained.

  Based on the above findings, the present inventor conducted further diligent research, studied combinations of various metal foils and resin films, and surprisingly superior fitting by using a metal that is not easily annealed. We succeeded in developing a metal laminate that can achieve strength. Then, as a result of producing a fitting type | mold connector using this metal laminated body and evaluating fitting strength, it demonstrated that sufficient fitting strength was expressed, and came to complete this invention.

That is, in the present invention, first, a metal laminate including a resin sheet A having at least one thermoplastic resin layer and a metal layer B laminated on one surface of the resin sheet A, the resin laminate A metal laminate is provided in which the elastic modulus of the sheet A is 4 to 7.2 GPa and the elastic modulus of the metal layer B is 100 to 140 GPa.
In the metal laminate according to the present invention, the proof stress may be 300 N / mm ² or less.

Further, in the present invention, including the metal laminate according to the present invention, the metal laminate has a female terminal portion, the female terminal portion has an opening formed in the stacking direction of the metal laminate. Provide female connector,
Furthermore, the metal laminated body which concerns on this invention is included, The said metal laminated body has a male terminal part, and this male terminal part protruded at one surface and / or the other surface of the said metal laminated body at least. A male connector is provided having one protruding bump.

  Furthermore, the present invention provides a connector structure in which the male terminal portion of the male connector according to the present invention is inserted and assembled into the female terminal portion of the female connector according to the present invention.

  According to the present invention, a metal laminate capable of achieving excellent fitting strength, and a female connector, male connector and connector structure having excellent fitting strength can be provided. In addition, the effect described here is not necessarily limited and may be any effect described in the present invention.

It is a figure which shows the structural example of the metal laminated body of 1st Embodiment which concerns on this invention. It is a figure which shows the structural example of the metal laminated body of 2nd Embodiment which concerns on this invention. It is a figure for demonstrating a pull strength test. It is a figure for demonstrating a pull strength test. It is a figure for demonstrating a pull strength test. It is a figure for demonstrating a pull strength test. It is a figure which shows the structural example of the female connector of 3rd Embodiment, the male connector of 4th Embodiment, and the connector structure of 5th Embodiment concerning this invention.

  Hereinafter, preferred embodiments for carrying out the present invention will be described. The embodiments described below show an example of a representative embodiment of the present invention, and the scope of the present invention is not narrowly interpreted.

The description will be made in the following order.
1. First Embodiment (Example 1 of Metal Laminate)
2. Second Embodiment (Example 2 of Metal Laminate)
3. Third embodiment (example of female connector)
4. Fourth Embodiment (Example of Male Connector)
5. Fifth embodiment (example of connector structure)

<1. First Embodiment (Example 1 of Metal Laminate)>
The metal laminate of the first embodiment (Example 1 of metal laminate) according to the present invention includes a resin sheet A having at least one thermoplastic resin layer and a metal layer laminated on one surface of the resin sheet A. B, a metal laminate in which the elastic modulus of the resin sheet A is 4 to 7.2 GPa and the elastic modulus of the metal layer B is 100 to 140 GPa. According to the metal laminate of the first embodiment of the present invention, excellent fitting strength can be realized.

  In the metal laminate of the first embodiment according to the present invention, the elastic modulus of the resin sheet A is 4 to 7.2 GPa. When the modulus of elasticity of the resin sheet A is less than 4 GPa, sufficient fitting strength may not be obtained, while when the modulus of elasticity of the resin sheet A is more than 7.2 GPa, it becomes a brittle material, and as a metal laminate Cracks may occur.

  In the metal laminate according to the first embodiment of the present invention, the elastic modulus of the metal layer B is 100 to 140 GPa. If the modulus of elasticity of the metal layer B is less than 100 GPa, sufficient fitting strength may not be obtained, while if the modulus of elasticity of the metal layer B is more than 140 GPa, the material becomes a brittle material and cracks of the metal layer B It may occur, and the bump of the mating pin or the male connector may be scratched.

  The resin sheet A has at least one thermoplastic resin layer. That is, the resin sheet A may be comprised from 1 type of thermoplastic resin layers, and may be comprised from 2 or more types of thermoplastic resin layers. The thermoplastic resin may be any thermoplastic resin, for example, polyimide (PI), liquid crystal polymer (LCP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyetheretherketone (PEEK), polyphenyl A sulfide (PPS) or a tetrafluoroethylene perfluoroalkyl vinyl ether copolymer (PFA) etc. are mentioned. Examples of the liquid crystal polymer include a liquid crystal polymer having ethylene terephthalate and parahydroxybenzoic acid as structural units, a liquid crystal polymer having phenol, phthalic acid and parahydroxybenzoic acid as structural units, 6-hydroxy-2-naphthoic acid and parahydroxy Examples thereof include liquid crystal polymers having benzoic acid as a structural unit.

  The thickness of the resin sheet A may be any thickness, but is preferably 5 to 100 μm, and more preferably 12.5 to 25 μm. If the thickness of the resin sheet A is less than 5 μm, the resin sheet A may be broken. If it exceeds 100 μm, the flexibility may tend to be lowered.

  The shape of the resin sheet A is not particularly limited and may be any shape, but the shapes of a film, a sheet, and a plate are preferable.

  The metal layer B may include an optional metal as long as it is a metal that is not easily annealed. However, the metal included in the metal layer B includes, for example, a metal such as Ni, Si, or Mg containing copper as a main component. Copper alloy copper foils are preferred. The copper alloy copper foil includes, for example, 94 to 97% by mass of copper, 3 to 4% by mass of Ni, 0 to 1% by mass of Si, 0 to 0.2% by mass of Mg, and 0 to 0. 2% by mass of Mn.

  Although the thickness of the metal layer B may be any thickness, it is preferably 6 to 35 μm and preferably 9 to 18 μm from the viewpoint of flexibility and strength as a connector.

  The shape of the metal layer B is not particularly limited and may be any shape, but a foil shape is preferable. The conductivity of the metal layer B is not particularly limited, but is preferably 34 to 100 IACS. IACS refers to International annealed copper standard. In addition, when the metal layer B contains, for example, a copper alloy copper foil, the copper alloy copper foil is easily oxidized. Therefore, the metal layer B is surface-treated by plating with Cr, Ni, or Au. It is also good.

The proof stress of the metal layer B may have any value but is preferably 880 to 1100 N / mm ² . When the proof strength of the metal layer B is less than 880 N / mm ² , sufficient spring characteristics can not be obtained at the time of fitting, and adhesion with the fitting pins or the protruding bumps of the male connector may not be obtained. When the proof strength of layer B is more than 1100 N / mm ² , flaws may occur in the projection bumps of the fitting pin or the male connector.

  Examples of the metal laminate of the first embodiment according to the present invention include a laminate in which a copper alloy foil that is difficult to be annealed and a highly elastic resin film are combined. A fitting-type connector (one in which a female connector and a male connector are fitted) using this metal laminate has a higher fitting strength and can sufficiently meet the market required performance.

Although the proof stress of the metal layered product of a 1st embodiment concerning the present invention may have an arbitrary value, it is preferred that it is 300 N / mm ² or less.

  The fitting strength of the metal laminate of the first embodiment according to the present invention may have an arbitrary value, but it is 0.6 N / mm (the strength per circumference of the protrusion pin of the fitting pin or the male connector. Or more) is preferable. When the metal laminate of the first embodiment according to the present invention is used as a female connector, there is no abnormality in the opening of the female connector in a state where the fitting pin is inserted as an appearance, for example, a crack or the like It is necessary that there is no abnormality. In addition, when the metal laminate of the first embodiment according to the present invention is used as a female connector, it is necessary that the side surfaces and the like of the protruding bumps have no flaws in a state where the protruding bumps are inserted as an appearance. .

(Method of Manufacturing Metal Laminated Body of First Embodiment of the Present Invention)
In the method of manufacturing a metal laminate according to the first embodiment of the present invention, it is optional if the metal laminate can be manufactured to include a resin sheet A and a metal layer B laminated on one surface of the resin sheet A. It can manufacture using the well-known manufacturing method of. For example, the metal laminate of the embodiment of the first embodiment according to the present invention can be manufactured using the double belt press device described in International Publication WO 2013/021893. A first embodiment according to the present invention, using a double belt press apparatus, pressing a metal layer B on one side of a resin sheet A under high temperature and high pressure conditions with a resin sheet A (thermoplastic resin film). Metal laminates can be manufactured. In a place where one side or the other side (front or back) of the resin sheet A (thermoplastic resin film) is softened, the resin sheet A and the metal layer B are integrated under high temperature and high pressure, and the cooling process is performed No adhesive layer (adhesive) is required since it can be laminated.

  Hereinafter, the metal laminate according to the first embodiment of the present invention will be described in more detail with reference to FIG. The metal laminate of the first embodiment according to the present invention is the structure of the metal laminate of the first embodiment according to the present invention shown in FIG. 1 without departing from the object and the gist of the present invention. It is not limited to the example.

  Fig.1 (a) is a perspective view which shows the structural example of the metal laminated body of 1st Embodiment which concerns on this invention. FIG.1 (b) is sectional drawing which shows the structural example of the metal laminated body of 1st Embodiment which concerns on this invention in P1 part shown by FIG. 1 (a).

  Referring to FIGS. 1A and 1B, a metal laminate 1 includes a resin sheet A11 and a metal layer B21 laminated on one surface of the resin sheet A11 (the upper surface of the resin sheet A11 in FIG. 1). And consists of Although the total thickness of the metal laminated body 1 is not specifically limited, 100 micrometers or less are preferable.

<2. Second Embodiment (Example 2 of Metal Laminate)>
The metal laminate of the second embodiment (Example 2 of metal laminate) according to the present invention includes a resin sheet A having at least one thermoplastic resin layer and a metal layer laminated on one surface of the resin sheet A. B and the metal layer C including the metal layer C laminated on the other surface of the resin sheet A, the elastic modulus of the resin sheet A is 4 to 7.2 GPa, and the elastic modulus of the metal layer B is 100. It is a metal laminated body which is -140 GPa and whose elasticity modulus of the metal layer C is 90-140 GPa. According to the metal laminate of the second embodiment of the present invention, excellent fitting strength can be realized.

  The resin sheet A and the metal layer B included in the metal laminate of the second embodiment (example 2 of the metal laminate) according to the present invention are the first embodiment (example 1 of the metal laminate) according to the present invention Here, the detailed description is omitted because it is as described in the section of the metal laminate.

  The metal contained in the metal layer C may be any metal, but can be optionally selected from, for example, the metals contained in the metal layer B described above. The thickness of the metal layer C may be any thickness, but is preferably 6 to 35 μm, and more preferably 9 to 18 μm from the viewpoint of flexibility and strength as a connector.

  The shape of the metal layer C is not particularly limited and may be any shape, but a foil shape is preferable. The conductivity of the metal layer C is not particularly limited, but is preferably 34 to 100 IACS. In addition, when the metal layer C includes, for example, a copper alloy copper foil, the copper alloy copper foil is easily oxidized. Therefore, the metal layer C is surface-treated by plating with Cr, Ni, or Au. It is also good.

The proof stress of the metal layer C may have any value, but is preferably 880 to 1100 N / mm ² . When the proof strength of the metal layer C is less than 880 N / mm ² , sufficient spring characteristics can not be obtained at the time of fitting, and adhesion with the projecting pins of the fitting pin or the male connector may not be obtained. When the proof strength of layer C is more than 1100 N / mm ² , scratches may occur on the projection bumps of the fitting pin or the male connector.

  The metal laminate of the second embodiment according to the present invention includes, for example, a laminate in which two hard-to-annealed copper alloy foils are combined on both sides of a high elasticity resin film. A fitting-type connector (one in which a female connector and a male connector are fitted) using this metal laminate has a higher fitting strength and can sufficiently meet the market required performance.

Although the proof stress of the metal layered product of a 2nd embodiment concerning the present invention may have an arbitrary value, it is preferred that it is 300 N / mm ² or less.

  The fitting strength of the metal laminate of the second embodiment according to the present invention may have any value, but 0.6 N / mm (strength per circumference of the fitting pin or the protruding bump of the male connector) Or more) is preferable. When the metal laminate of the second embodiment according to the present invention is used as a female connector, there is no abnormality in the opening of the female connector in a state where the fitting pin is inserted as an appearance, for example, a crack etc. It is necessary that there is no abnormality. In addition, when the metal laminate of the second embodiment according to the present invention is used as a female connector, it is necessary that the side surfaces and the like of the protruding bumps have no flaws in a state where the protruding bumps are inserted as an appearance. .

(Method of Manufacturing Metal Laminated Body of Second Embodiment of the Present Invention)
In the method of manufacturing a metal laminate according to the second embodiment of the present invention, the resin sheet A, the metal layer B laminated on one side of the resin sheet A, and the other side of the resin sheet A If the metal laminate can be manufactured to include the metal layer C, it can be manufactured using any known manufacturing method. For example, the metal laminate of the embodiment according to the present invention can be manufactured using the double belt press device described in International Publication WO 2013/021893. Using a double-belt press, press the metal layer B and metal layer C on one side and the other side of the resin sheet A under high temperature and high pressure conditions of the resin sheet A (thermoplastic resin film) The metal laminate can be manufactured. In a place where one side and the other side (front and back) of the resin sheet A (thermoplastic resin film) are softened, the resin sheet A, the metal layer B and the metal layer C are integrated under high temperature and high pressure. Since the lamination process can be performed through the cooling process, no adhesive layer (adhesive) is required.

  Hereinafter, the metal laminate according to the second embodiment of the present invention will be described in more detail with reference to FIG. In addition, the metal laminated body of 2nd Embodiment which concerns on this invention is a range which does not deviate from the objective and main point of this invention, and is a structure of the metal laminated body of 2nd Embodiment which concerns on this invention shown by FIG. It is not limited to the example.

  Fig.2 (a) is a perspective view which shows the structural example of the metal laminated body of 2nd Embodiment which concerns on this invention. FIG.2 (b) is sectional drawing which shows the structural example of the metal laminated body of 2nd Embodiment concerning this invention in P2 part shown by FIG. 2 (a).

  Referring to FIGS. 2A and 2B, the metal laminate 2 includes a resin sheet A12 and a metal layer B22 laminated on one surface of the resin sheet A12 (the upper surface of the resin sheet A12 in FIG. 2). And a metal layer C32 laminated on the other surface of the resin sheet A (the lower surface of the resin sheet A12 in FIG. 2). Specifically, the order of the metal layer C32, the resin sheet A12, and the metal layer B22. Is stacked on. The metal laminate of the second embodiment according to the present invention may be laminated in the order of the metal layer B, the thermoplastic resin layer A, and the metal layer C. Further, as shown in FIG. 2, the thickness of the metal layer C32 may be thicker than the thickness of the metal layer B22, or the thickness of the metal layer C may be thinner than the thickness of the metal layer B, or the metal layer The thickness of C may be substantially equal to the thickness of the metal layer B. And although the total thickness of the metal laminated body 2 is not specifically limited, 100 micrometers or less are preferable.

<3. Third embodiment (example of female connector)>
A female connector according to a third embodiment (example of a female connector) according to the present invention includes the metal laminate according to the first embodiment according to the present invention or the metal laminate according to the second embodiment, and the metal laminate Is a female connector having a female terminal portion, and the female terminal portion having an opening formed in the stacking direction of the metal laminate. The female connector of the third embodiment according to the present invention has excellent fitting strength to any male connector.

  In the female connector of the third embodiment according to the present invention, for example, the metal layer B of the metal laminate of the first embodiment according to the present invention is patterned or the metal laminate of the second embodiment The metal layer B and / or the metal C are patterned, and an opening is formed in the female terminal portion in order to electrically connect the female connector and the male connector through the protruding bumps of the male connector.

  Hereinafter, the female connector according to the third embodiment of the present invention will be described in more detail with reference to FIG. It should be noted that the female connector of the third embodiment according to the present invention is a female connector of the third embodiment according to the present invention shown in FIG. It is not limited to the configuration example of the connector.

  FIG. 7A-1 is a perspective view illustrating a configuration example of the female connector according to the third embodiment of the present invention.

  Referring to FIG. 7 (a-1), the female connector 407-A includes a metal laminate 7-A-1 composed of a resin sheet A17-A-1 and a metal layer B27-A-1. Metal laminated body 7-A-1 has female terminal part 407-A-1. The female terminal portion 407-A-1 has an opening 407-A-2 having a diameter d407-A-2. As shown in FIG. 7 (a-1), the opening 407-A-2 is formed in the stacking direction of the metal laminate 7-A-1 (vertical direction in FIG. 7 (a-1)). .

<4. Fourth Embodiment (Example of Male Connector)>
The male connector according to the fourth embodiment (example of the male connector) according to the present invention includes the metal laminate according to the first embodiment according to the present invention or the metal laminate according to the second embodiment, and the metal laminate Is a male connector having a male terminal portion, and the male terminal portion having at least one protruding bump provided on one surface and / or the other surface of the metal laminate. The male connector of the fourth embodiment according to the present invention has an excellent fitting strength to any female connector.

  In the male connector of the fourth embodiment according to the present invention, for example, the metal layer B of the metal laminate of the first embodiment according to the present invention is patterned or the metal laminate of the second embodiment The metal layer B and / or the metal C are patterned, and protruding bumps are provided on the male terminal portion in order to electrically connect the male connector and the female connector through the opening of the female connector.

  Hereinafter, the male connector according to the fourth embodiment of the present invention will be described in more detail with reference to FIG. The male connector of the fourth embodiment according to the present invention is a male connector of the fourth embodiment according to the present invention shown in FIG. 7 (a-2) within a range not departing from the object and the spirit of the present invention. It is not limited to the configuration example of the connector.

  FIG. 7A-2 is a perspective view showing a configuration example of the male connector according to the fourth embodiment of the present invention.

  Referring to FIG. 7 (a-2), the male connector 507-A includes a metal laminate 7-A-2 composed of a resin sheet A17-A-2 and a metal layer B27-A-2. The metal laminate 7-A-2 has a male terminal portion 507-A-1. The male terminal portion 507-A-1 has a protruding bump 507-A-2 having a diameter d507-A-2. As shown in FIG. 7 (a-2), the bump bump 507-A-2 protrudes from one surface (the upper surface in FIG. 7 (a-2)) of the metal laminate 7-A-2. It is formed.

<5. Fifth Embodiment (Example of Connector Structure)>
The connector structure of the fifth embodiment (example of the connector structure) according to the present invention is the same as the male terminal according to the fourth embodiment of the present invention in the female terminal portion of the female connector of the third embodiment according to the present invention. It is a connector structure which inserts and assembles the male terminal part which a connector has. The connector structure of the fifth embodiment according to the present invention has excellent fitting strength, and is further excellent in conductivity due to the excellent fitting strength.

  Hereinafter, the connector structure of the fifth embodiment according to the present invention will be described in more detail with reference to FIGS. 7 (a-1) and (a-2) and FIG. 7 (b). The connector structure of the fifth embodiment according to the present invention is the connector structure of the fifth embodiment according to the present invention shown in FIG. 7 (b) without departing from the object and the gist of the present invention. It is not limited to the configuration example.

  As shown in FIGS. 7 (a-1) and (a-2), the male connector 507-A has a male connector 507-A in the opening 407-A-2 of the female terminal portion 407A-1 of the female connector 407-A. The protruding bumps 507-A-2 of the terminal portion 507-A-1 are inserted in the direction of the arrow Q7A along L1 and L2. The diameter d507-A-2 of the protruding bumps is preferably larger than the diameter d407-A-2 of the opening, although it is not particularly limited if it is assembled and fitted.

  Refer to FIG. 7 (b). The connector structure 607-B includes a female connector 407-B formed of a metal laminate 7-B-1 including a resin sheet A17-B-1 and a metal layer B27-B-1, and a resin sheet A17-. A male connector 507-B formed of a metal laminate 7-B-2 composed of B-2 and a metal layer B27-B-2 is provided with a bump bump 507-B at the opening of the female connector 407-B. -2 is inserted, assembled and fitted and formed. In the connector structure 607-B, the female connector 407-B and the male connector 507-B are electrically connected to each other through the protruding bumps 507-B-2.

  The effects of the present invention will be specifically described below with reference to examples. The scope of the present invention is not limited to the examples.

<Method of producing metal laminate>
(Configuration of double belt press)
The metal laminate was made using a double belt press. The double belt press apparatus is a hydraulic system, has a mechanism for heating with a liquid medium, and comprises an apparatus for heating the liquid medium, and a pump for pressurizing and flowing the heated liquid medium into the apparatus main body. It is a well-known double belt press apparatus described in 021893. The endless belt is disposed as a lower belt so as to be engaged with the drive and guide rollers. On the upstream side in the transport direction of the double belt press apparatus, there is a feeding shaft for feeding the raw material, and on the downstream side in the transport direction, there is a winding shaft.

(Method 1 of producing a metal laminate)
The metal layer B was laminated | stacked on one surface side of resin sheet A using said double belt press apparatus, and the metal laminated body was produced. As lamination conditions (lamination conditions), the set temperature of the liquid medium was set to 270 ° C. to 340 ° C., and the set pressure was set to 3.0 MPa for thermocompression bonding.

(Method 2 of producing a metal laminate)
The metal layer B was laminated on one surface side of the resin sheet A using the above-described double belt press apparatus, and the metal layer C was laminated on the other surface side of the resin sheet A to produce a metal laminate. As lamination conditions (lamination conditions), the set temperature of the liquid medium was set to 270 ° C. to 340 ° C., and the set pressure was set to 3.0 MPa for thermocompression bonding.

<Test and evaluation method>
The material tensile test, the measurement of elastic modulus, the measurement of proof stress and the pull strength test (fitting strength measurement) will be described in detail below.

(Material tensile test)
In order to evaluate the respective materials of the resin sheet A, the metal layer B and the metal layer C, the respective materials of the resin sheet A, the metal layer B and the metal layer C are made into sheet-like simple substances, Each was passed using a double belt press at the lamination conditions described above, and a tensile test was performed using a tensile tester (type 5985, Instron Corporation). At this time, with respect to the resin sheet A, the upper and lower sides of the resin film A were sandwiched between the release films and passed. The release film may be selected from films having high heat resistance and good release property, and UPILEX-S (manufactured by Ube Industries, Ltd., thickness: 25 μm) was used. Moreover, based on the above-mentioned manufacturing method 1 or 2 of a metal laminated body, the metal laminated body was produced and the tension test was implemented by the method similar to the above-mentioned. In the material tension test, strip-shaped samples (12 mm wide × 200 mm long) were prepared, and were measured at a speed of 2 mm / min as a distance between chucks of 100 mm. The tensile strength (N / mm ² ) was measured three times each in the longitudinal direction (MD direction) and the width direction (TD direction) of each strip-shaped sample of resin sheet A, metal layer B and metal layer C, The minimum value was taken as the final measurement value.

(Measurement of elastic modulus)
The elastic modulus was measured from the stress-strain curve based on JIS K 7161 according to the method of the above-mentioned material tension test.

(Measurement of proof stress)
From the stress strain curve based on JIS K 7161 according to the method of the above-mentioned material tension test, the stress of 0.2% strain was read as the proof stress.

(Pull strength test (Mapping strength measurement))
The pull strength test (fitting strength measurement) will be described with reference to FIGS. 3 to 6 are diagrams for explaining the pull strength test.

[Method of pull strength test (fitting strength measurement)]
First, as shown in FIG. 3A, a female connector 403 is prepared. The female connector 403 is composed of a metal laminate 3 having a female hole (through hole) 3C. The diameter (φ) d3C of the female hole 3C is 4.0 mm. In addition, the metal laminated body 3 is comprised from resin sheet A13 and metal layer B23 which were laminated | stacked. The female connector 403 is manufactured by drilling a through hole of φ 4.0 mm at the center of the 50 mm × 50 mm metal laminate 3.

  Next, as shown in FIG. 3B, a pseudo male connector 503 is prepared. The pseudo male connector 503 is composed of a SUS foil 103 and a convex pin (snap button) 203. The SUS foil 103 has a through hole 103C. The diameter (φ) d103C of the through hole 103C is 4.0 mm. The SUS foil 103 is manufactured by drilling a through hole of φ 4.0 mm at the center of a 50 mm × 50 mm SUS foil. The convex pin (snap button) 203 is composed of a cylindrical convex portion 203-1 and a substantially circular flat portion 203-2. In the convex pin (snap button) 203, the cylindrical convex portion 203-1 is formed on a substantially circular plane portion 203-2. The diameter (φ) d203 of the cylindrical convex portion 203-1 is 4.1 mm.

  As shown in FIG. 4, the female connector 404 and the pseudo male connector 504 are connected to the pull test jig 304-1 in the upper part in FIG. 4 and the pull test jig 304 in the lower part in FIG. 4. Prepare to pinch with -2. The female connector 404 is composed of a metal laminate 4 having a female hole (through hole) 4C, and the metal laminate 4 is composed of a laminated resin sheet A14 and a metal layer B24. The diameter (φ) d4C of the female hole 4C is 4.0 mm. The pseudo male connector 504 is composed of the SUS foil 104 and the convex pin (snap button) 204, and the cylindrical convex portion 204-1 of the convex pin (snap button) 204 in the through hole 104 C of the SUS foil 104. Is inserted and fitted. The diameter (φ) d104C of the through hole 104C of the SUS foil 104 is 4.0 mm, and the diameter (φ) d204 of the cylindrical convex portion 204-1 is 4.1 mm. The upper pull test jig 304-1 is a metal having a quadrangular pyramidal main body 304-1-2 formed of a metal rod and a metal extended from the apex of the quadrangular pyramidal main body 304-1-2. It is comprised from the handle part 304-1-1 which consists of rods. The lower pull test jig 304-2 includes a quadrangular pyramid-shaped body portion 304-2-2 formed of a metal rod and a metal extending from the top of the quadrangular pyramid-shaped body portion 304-2-2. It is comprised from handle part 304-2-1 which consists of sticks. As shown in FIG. 4, the rectangular bottom surface of the quadrangular pyramid main body 304-1-2 and the upper surface of the female connector 404 (the other surface of the metal layer B 24 on which the resin sheet A 14 is not laminated) Are arranged opposite to each other, and the lower surface of the pseudo male connector 504 (the surface in the direction opposite to the direction in which the male connector 504 is fitted with the female connector 404) It is arrange | positioned facing the bottom face part.

  Next, the female connector 404 and the upper pull test jig 304-1 are connected to the upper surface of the female connector 404 (the other surface of the metal layer B24 on which the resin sheet A14 is not laminated) and the pyramid-shaped main body 304. The rectangular bottom surface portion of -1-2 is attached and fixed with double-sided tape, and the pseudo male connector 504 and the lower pull test jig 304-2 are connected to the lower surface of the male connector 504 (male connector 504). Is attached to the rectangular bottom surface of the main body 304-2-2 having a quadrangular pyramid shape with a double-sided tape. And the cylindrical convex part 204-1 which the pseudo | simulation male connector 504 has is inserted in the female hole (through-hole) 4C which the female connector 404 has, and it is assembled | attached and fitted.

  As shown in FIG. 5, the female connector 405 and the pseudo male connector 505 are fitted, the female connector 405 and the pull test jig 305-1 at the top in FIG. 5 are joined, and the pseudo male connector A pull test jig 305-2 in the lower part of FIG. The female connector 405 includes the metal laminate 5, and the metal laminate 5 is configured of the laminated resin sheet A <b> 15 and the metal layer B <b> 25. Pseudo male connector 505 is composed of SUS foil 105 and convex pin (snap button) 205, and cylindrical convex part 205-1 of convex pin (snap button) 205 is inserted into the through hole of SUS foil 105. Are fitted.

  With the above-mentioned fitted and joined state, the handle portion 305-1-1 made of a metal rod, which is extended from the top of the quadrangular pyramid-shaped main body portion 305-1-2 formed of a metal rod, is chucked. With a chuck, grasp the handle portion 305-2-1 consisting of a metal rod extended from the top of the square pyramid shaped main body portion 305-2-2 formed of a metal rod with a chuck, and use a tensile tester (5985 type) , In the direction of arrow Q5 at Instron Corporation), and the measurement of the maximum load was performed. The measurement was performed three times each, and the minimum value of the three measurements was taken as the data value of the pull strength. The test conditions were such that the crosshead speed was 10 mm / min and the distance between chucks was 120 mm.

[Evaluation of appearance]
The appearance was evaluated as follows using the female connector 406 and the pseudo male connector 506 in a state in which the fitting state is released after the tensile test shown in FIG. As the evaluation method and evaluation standard of the appearance, the presence or absence of the crack on the substrate and the flaw of the fitting pin (convex pin) was confirmed, and the presence or absence of 1 mm or more was visually confirmed for the crack on the substrate. Furthermore, the presence or absence of 1 mm or more was visually confirmed also about the flaw of a convex-shaped pin.

  The female connector 406 is composed of a metal laminate 6 having a female hole (through hole) 6C. The metal laminate 6 is composed of a laminated resin sheet A16 and a metal layer B26. The appearance of the female hole (through hole) 6C was evaluated for any scratches, cracks or the like. In addition, it was visually evaluated whether the diameter (φ) d6C of the female hole 6C was maintained at 4.0 mm. The pseudo male connector 506 is composed of the SUS foil 106 and the convex pin (snap button) 206, and the cylindrical convex portion 206-1 of the convex pin (snap button) 206 in the through hole 106 C of the SUS foil 106. Is inserted and fitted. Whether a crack, a crack, or the like was present on the cylindrical convex portion 206-1 of the convex pin (snap button) 206 was evaluated for appearance.

Example 1
As metal layer B, metal-1 having a metal composition shown in Table 1 below (thickness: 18 μm) was used, and as resin sheet A, polyimide (PI) film-1 (thickness: 25 μm) was used. The measurement of Subsequently, metal laminate 1 was produced according to production method 1 of the metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminate 1.

Results of material tensile test of metal-1 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-1 (elasticity Table 1 below shows the results of measurement of the rate (Gpa) and tensile strength (N / mm ² )), the yield strength (N / mm ² ) of the metal laminate-1 and the pull strength test (fitting strength measurement). Shown in.

Example 2
As the metal layer B, metal-1 (thickness: 18 μm) having a metal composition shown in Table 1 below is used, and as the resin sheet A, polyimide (PI) film-2 (thickness: 12.5 μm) is used. Measurement of tensile test was performed. Subsequently, metal laminate 2 was produced according to production method 1 of the metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminated body-2.

Results of material tensile test of metal-1 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-2 (elasticity Table 1 below shows the results of measurement of the rate (Gpa) and tensile strength (N / mm ² )), the yield strength (N / mm ² ) of the metal laminate-2 and the pull strength test (fitting strength measurement). Shown in.

Example 3
As a metal layer B, metal-2 (thickness: 18 μm) having a metal composition shown in Table 1 below is used, and as a resin sheet A, a polyimide (PI) film-1 (thickness: 25 μm) is used. The measurement of Subsequently, metal laminate 3 was produced according to production method 1 of the metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminated body-3.

Results of material tensile test of metal-2 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-1 (elasticity Ratio (Gpa) and tensile strength (N / mm ² )), measurement results of proof stress (N / mm ² ) of metal laminate-3 and pull strength test (fitting strength measurement) are shown in Table 1 below. Shown in.

Example 4
As metal layer B, metal-1 having a metal composition shown in Table 1 below (thickness: 18 μm) was used, and as resin sheet A, liquid crystal polymer (LCP) film-1 (thickness: 25 μm) was used. Test measurements were made. Next, a metal laminate 4 was produced according to Method 1 for producing a metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminated body-4.

Results of metal-1 material tensile test (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of liquid crystal polymer (LCP) film-1 ( The results of measurement of elastic modulus (Gpa) and tensile strength (N / mm ² )), yield strength (N / mm ² ) of metal laminate-4 and pull strength test (fitting strength measurement) are shown in the table below. Shown in 1.

Example 5
As the metal layer B, metal-1 (thickness: 18 μm) having the metal composition shown in Table 1 below is used, and as the resin sheet A, polyimide (PI) film-1 (thickness: 25 μm) is used. The material tensile test was measured using Metal-3 (thickness: 18 μm) having the metal composition shown in Table 1 below as Subsequently, metal laminate 5 was produced according to production method 2 of the metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminated body-5.

Results of material tensile test of metal-1 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), results of material tensile test of polyimide (PI) film-1 (elastic modulus) (Gpa) and tensile strength (N / mm ² )), and results of material tensile test of metal-3 (elastic modulus (Gpa) and tensile strength (N / mm ² )), and proof stress of metal laminate-5 ( The results of the measurement of N / mm ² ) and the results of the pull strength test (fitting strength measurement) are shown in Table 1 below.

Example 6
As the metal layer B, metal-1 (thickness: 18 μm) having the metal composition shown in Table 1 below is used, and as the resin sheet A, polyimide (PI) film-1 (thickness: 25 μm) is used. The measurement of the material tension test was performed using Metal-1 (thickness: 18 μm) having the metal composition shown in Table 1 below. Subsequently, metal laminate 6 was produced according to production method 2 of the metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminated body-6.

Results of material tensile test of metal-1 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-1 (elasticity Ratio (Gpa) and tensile strength (N / mm ² )), the results of measurement of the yield strength (N / mm ² ) of the metal laminate-6, and the results of the pull strength test (fitting strength measurement) are shown in Table 1 below. Shown in.

Comparative Example 1
As metal layer B, metal-4 having a metal composition shown in Table 2 below (thickness: 20 μm) was used, and as resin sheet A, polyimide (PI) film-1 (thickness: 25 μm) was used. The measurement of Next, a metal laminate-a was produced according to Method 1 for producing a metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminate-a.

Results of material tensile test of metal-4 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-1 (elasticity Table 2 below shows the results of the measurement of the rate (Gpa) and the tensile strength (N / mm ² )), the yield strength (N / mm ² ) of the metal laminate-a, and the result of the pull strength test (fitting strength measurement). Shown in.

Comparative Example 2
As a metal layer B, metal-5 (thickness: 20 μm) having a metal composition shown in Table 2 below is used, and as a resin sheet A, a polyimide (PI) film-1 (thickness: 25 μm) is used. The measurement of Next, a metal laminate-b was produced according to Method 1 for producing a metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminate-b.

Results of material tensile test of metal-5 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-1 (elasticity Table 2 below shows the results of the measurement of the rate (Gpa) and the tensile strength (N / mm ² )), the yield strength (N / mm ² ) of the metal laminate-b, and the pull strength test (fitting strength measurement). Shown in.

Comparative Example 3
As the metal layer B, metal-1 having a metal composition shown in Table 2 below (thickness: 18 μm) was used, and as the resin sheet A, a PFA film (thickness: 25 μm) was used, and a material tensile test was measured. . Next, metal laminate-c was produced according to metal laminate production method 1. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminate-c.

Results of metal-1 material tensile test (elastic modulus (Gpa), proof stress (N / mm ² ) and tensile strength (N / mm ² )), and PFA film material tensile test results (elastic modulus (Gpa) and Table 2 below shows the results of measurement of tensile strength (N / mm ² )), proof stress (N / mm ² ) of metal laminate-c, and pull strength test (fitting strength measurement).

Comparative Example 4
As metal layer B, metal-3 having a metal composition shown in Table 2 below (thickness: 18 μm) was used, and as resin sheet A, polyimide (PI) film-1 (thickness: 25 μm) was used. The measurement of Next, a metal laminate-d was produced according to Method 1 for producing a metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminate-d.

Results of material tensile test of metal-3 (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and results of material tensile test of polyimide (PI) film-1 (elasticity Table 2 below shows the results of measurement of the rate (Gpa) and tensile strength (N / mm ² )), the yield strength (N / mm ² ) of the metal laminate-d, and the result of the pull strength test (fitting strength measurement). Shown in.

Comparative Example 5
As the metal layer B, metal-1 having a metal composition shown in Table 2 below (thickness: 18 μm) was used, and as the resin sheet A, a PEN film (thickness: 25 μm) was used to measure a material tensile test. . Next, a metal laminate-e was produced according to Method 1 for producing a metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using the obtained metal laminate-e.

Results of metal-1 material tensile test (elastic modulus (Gpa), proof stress (N / mm ² ) and tensile strength (N / mm ² )), and PEN film material tensile test results (elastic modulus (Gpa) and Table 2 below shows the results of measurement of tensile strength (N / mm ² )), yield strength (N / mm ² ) of metal laminate-e, and pull strength test (measurement of fitting strength).

Comparative Example 6
As the metal layer B, metal-1 having a metal composition shown in Table 2 below (thickness: 18 μm) was used, and as the resin sheet A, an epoxy film (thickness: 25 μm) was used, and a material tensile test was measured. . Next, a metal laminate-f was produced according to Method 1 for producing a metal laminate. The measurement of proof stress and the pull strength test (fitting strength measurement) were performed using obtained metal laminated body-f.

Results of metal-1 material tensile test (elastic modulus (Gpa), yield strength (N / mm ² ) and tensile strength (N / mm ² )), and epoxy film material tensile test results (elastic modulus (Gpa) and Table 2 below shows the results of measurement of tensile strength (N / mm ² )), proof stress of metal laminate-f (N / mm ² ), and pull strength test (fitting strength measurement).

  As is apparent from Table 1 to Table 2, the metal laminates 1 to 1 produced in Examples 1 to 6 are the metal laminates produced in Comparative Examples 1 to 6-a. It was confirmed that the proof stress was large with respect to the metal laminate-f. Moreover, the metal laminated body-1 to metal laminated body 6 manufactured in Examples 1-6 have a pull strength with respect to the metal laminated body -a to metal laminated body -f manufactured in Comparative Examples 1 to 6 Was confirmed to be large.

  In the metal laminates 1-1 to metal laminates 6 produced in Examples 1 to 6, there was no occurrence of cracks or the like in the hole shape of the insertion of the convex pin (snap button), but there was no abnormality. It was confirmed that the metal laminate-b and the metal laminate-f produced in and 6 had occurrences of cracking and the like, and had abnormality. The metal laminate-1 to metal laminate-6 produced in Examples 1 to 6 were produced in Comparative Example 2 although the external shape of the convex pin (snap button) was not damaged and was not abnormal. It was confirmed that the metal laminate-b had a defect etc. and there was an abnormality.

  In addition, the effect described in this specification is an illustration to the last, is not limited, and may have other effects.

Moreover, the present invention can also take the following configurations.
[1]
A resin sheet A having at least one thermoplastic resin layer,
A metal laminate including a metal layer B laminated on one side of the resin sheet A, wherein
The elastic modulus of the resin sheet A is 4 to 7.2 GPa,
The metal laminated body whose elastic modulus of this metal layer B is 100-140 GPa.
[2]
The metal laminated body as described in [1] whose proof stress is 300 N / mm < ² > or less.
[3]
Including the metal laminate according to [1] or [2],
The metal laminate has a female terminal portion,
A female connector, wherein the female terminal portion has an opening formed in the stacking direction of the metal laminate.
[4]
Including the metal laminate according to [1] or [2],
The metal laminate has a male terminal portion,
The male connector, wherein the male terminal portion has at least one protruding bump protruding on one side and / or the other side of the metal laminate.
[5]
A connector structure in which the male terminal portion of the male connector described in [4] is inserted into and assembled with the female terminal portion of the female connector described in [3].

1 Metal Laminate 11 Resin Sheet A
21 Metal layer B

Claims (5)

A resin sheet A having at least one thermoplastic resin layer,
A metal laminate including a metal layer B laminated on one side of the resin sheet A, wherein
The elastic modulus of the resin sheet A is 4 to 7.2 GPa,
The metal laminated body whose elastic modulus of this metal layer B is 100-140 GPa. The metal laminated body of Claim 1 whose proof stress is 300 N / mm < ² > or less. A metal laminate according to claim 1 or 2, comprising
The metal laminate has a female terminal portion,
A female connector, wherein the female terminal portion has an opening formed in the stacking direction of the metal laminate. A metal laminate according to claim 1 or 2, comprising
The metal laminate has a male terminal portion,
The male connector, wherein the male terminal portion has at least one protruding bump protruding on one side and / or the other side of the metal laminate. The connector structure which inserts | assembles and inserts the said male terminal part which the male connector of Claim 4 has in the said female terminal part which the female connector of Claim 3 has.

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