WO2017047439A1 - 筐体 - Google Patents
筐体 Download PDFInfo
- Publication number
- WO2017047439A1 WO2017047439A1 PCT/JP2016/076116 JP2016076116W WO2017047439A1 WO 2017047439 A1 WO2017047439 A1 WO 2017047439A1 JP 2016076116 W JP2016076116 W JP 2016076116W WO 2017047439 A1 WO2017047439 A1 WO 2017047439A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reinforcing member
- cover
- joined
- bottom cover
- surface cover
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1628—Carrying enclosures containing additional elements, e.g. case for a laptop and a printer
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/36—Reinforcements for edges, corners, or other parts
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C5/00—Rigid or semi-rigid luggage
- A45C5/02—Materials therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1603—Arrangements to protect the display from incident light, e.g. hoods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3888—Arrangements for carrying or protecting transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0249—Details of the mechanical connection between the housing parts or relating to the method of assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
- H04M1/185—Improving the rigidity of the casing or resistance to shocks
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
Definitions
- the present invention relates to a housing (electronic device housing) containing electronic device parts, a housing such as an attache case and a carry case.
- Patent Document 1 discloses that the rigidity of a cabinet structure of an electric device including a resin-made lower case having upper and lower electric device mounting surfaces and an upper case having a front wall overlapping the upper electric device mounting surface is enhanced.
- the invention has been described.
- Patent Document 2 describes an invention in which the rigidity of the casing of the electronic device is increased by bringing the tip of a rib formed on the inner surface of the first casing into contact with the inner surface of the second casing.
- Patent Document 3 describes an invention that increases the rigidity of the casing of the electronic device by making the casing of the electronic device have a structure in which the surfaces of two plates are selectively bonded to each other.
- Patent Document 4 discloses an information processing apparatus including an outer casing in which a first case and a second case are coupled, and a metal frame disposed in the outer casing and attached to the outer casing.
- the invention which improves the heat dissipation of the is described.
- Patent Document 3 describes an invention that increases the rigidity of the casing of the electronic device by making the casing of the electronic device have a structure in which the surfaces of two plates are selectively bonded to each other.
- the casing is formed of a resin material, it is not possible to provide a casing having the torsional rigidity and the flexural rigidity required in the market.
- the casing is formed of a metal plate.
- the casing is formed by joining or abutting members. For this reason, even if the casing is formed of a metal plate, it is not possible to provide a casing having a torsional rigidity of a size required in the market.
- the weight of the casing increases, and the market needs cannot be met from the viewpoint of light weight.
- the rigidity of the casing of the electronic device is increased by joining the inner plate to the entire surface of the outer plate.
- the heat pipe flow path is formed by overmolding the inner plate and the thickness of the plate is reduced, the torsional rigidity required for the housing cannot be satisfied.
- joining the inner plate to the entire surface of the outer plate is not an effective method for improving rigidity from the viewpoint of weight reduction, and it is difficult to consider that the torsional rigidity is sufficiently large.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a housing capable of improving torsional rigidity and flexural rigidity while realizing reduction in thickness and weight.
- Another object of the present invention is to provide a housing capable of improving the torsional rigidity while realizing a reduction in thickness, weight and portability.
- Another object of the present invention is to provide a casing having high torsional rigidity and capable of improving dimensional stability.
- the housing according to the first aspect of the present invention includes a top cover, a bottom cover that is erected toward the top cover, and that has a standing wall part with a peripheral edge joined to the top cover;
- a reinforcing member having an opening disposed in a space defined by the top cover and the bottom cover, wherein the reinforcing member is joined to the bottom cover, and the bottom cover
- it is characterized by being formed of a material having a thickness in the range of 0.1 mm or more and 0.8 mm or less and an elastic modulus in the range of 20 GPa or more and 120 GPa or less.
- the housing according to the second aspect of the present invention includes a top cover, a bottom cover that is erected toward the top cover, and has a standing wall portion whose peripheral edge is joined to the top cover;
- a reinforcing member having an opening disposed in a space defined by the top cover and the bottom cover, wherein the reinforcing member is joined to the bottom cover, and the bottom cover Is formed of a fiber-reinforced composite material obtained by curing a laminate of prepregs composed of reinforcing fibers and a matrix resin.
- the reinforcing member has a thickness in the range of 0.3 mm or more and 0.8 mm or less, and an elastic modulus of 20 GPa or more and 120 GPa or less. It is formed by the material which exists in the range.
- the housing according to the third aspect of the present invention includes a top cover, a bottom cover having a standing wall portion that is erected toward the top cover and has a peripheral edge joined to the top cover;
- a reinforcing member having an opening disposed in a space defined by the top cover and the bottom cover, wherein the reinforcing member is joined to the bottom cover, and the reinforcing member
- it is characterized by being formed of a material having a thickness in the range of 0.3 mm or more and 0.8 mm or less and an elastic modulus in the range of 20 GPa or more and 120 GPa or less.
- the housing according to the fourth aspect of the present invention includes a top cover, a bottom cover having a standing wall portion that is erected toward the top cover and has a peripheral edge joined to the top cover; A reinforcing member having an opening disposed in a space defined by the top cover and the bottom cover, wherein the reinforcing member is joined to the bottom cover, and the reinforcing member Is formed of a fiber-reinforced composite material obtained by curing a laminate of prepregs composed of reinforcing fibers and a matrix resin.
- the housing according to the third and fourth aspects of the present invention is the above invention, wherein the bottom cover has a thickness in the range of 0.1 mm or more and 0.8 mm or less, and an elastic modulus of 20 GPa or more and 120 GPa or less. It is formed by the material which exists in the range.
- the housing according to the first, second, third, and fourth aspects of the present invention is the above-described invention, wherein the reinforcing member and the top cover or the bottom cover to which the reinforcing member is joined are provided. It is characterized by being formed of a fiber reinforced composite material obtained by curing a laminate of prepregs composed of reinforcing fibers and a matrix resin.
- a housing includes a top cover, a bottom cover having a standing wall portion that is erected toward the top cover and has a peripheral edge joined to the top cover; A reinforcing member having an opening disposed in a space defined by the top cover and the bottom cover, wherein the reinforcing member is joined to the bottom cover or the top cover.
- the ratio of the linear expansion coefficient of the reinforcing member to the linear expansion coefficient of the reinforcing member and the bottom cover or the top cover joined to the reinforcing member is in the range of 0.1 or more and 10 or less. To do.
- the reinforcing member is joined to the bottom cover or the top cover by thermal welding in the above invention. It is characterized by that.
- the casing according to the first, second, third, fourth, and fifth aspects of the present invention is the above invention, wherein the reinforcing member has a peeling load at 23 ° C. of 60 N / cm 2 or more and 5000 N / It is characterized by being joined to the bottom cover or the top cover so that it is within a range of cm 2 or less and the peeling load at 200 ° C. is within a range of less than 60 N / cm 2 .
- the reinforcing member and the top cover or the bottom cover are directly joined. It is characterized by.
- the housing according to the first, second, third, fourth, and fifth aspects of the present invention is directed to the bottom cover or the top cover that is joined to the reinforcing member in the above invention.
- the projected area of the reinforcing member is in the range of 60% to 95% of the area of the bottom cover or the top cover to which the reinforcing member is joined.
- the housing according to the first, second, third, fourth, and fifth aspects of the present invention is formed by joining the reinforcing member to the bottom cover or the top cover in the above invention.
- the volume of the hollow structure is in the range of 55% to 95% of the volume of the space.
- the housing according to the first, second, third, fourth, and fifth aspects of the present invention is formed by joining the reinforcing member and the bottom surface cover or the top surface cover in the above invention.
- the heat generating member is disposed on the hollow structure side surface of the reinforcing member.
- the housing according to the first, second, third, fourth, and fifth aspects of the present invention is formed between the reinforcing member and the bottom cover to which the reinforcing member is joined in the above invention.
- it is provided with another reinforcement member which connects the inner surface of the said reinforcement member, and the said bottom face cover to which the said reinforcement member is joined.
- the housing according to the present invention can improve the torsional rigidity and the flexural rigidity while realizing a reduction in thickness and weight. Moreover, according to the housing
- FIG. 1 is a perspective view showing a configuration of a housing according to an embodiment of the present invention.
- 2 is an exploded perspective view of the housing shown in FIG.
- FIG. 3 is a cross-sectional view illustrating an example of the configuration of the reinforcing member.
- FIG. 4 is a cross-sectional view showing an example of the configuration of the reinforcing member shown in FIG.
- FIG. 5 is a cross-sectional view showing an example of the configuration of the reinforcing member shown in FIG.
- FIG. 6 is a cross-sectional view illustrating an example of the configuration of the housing.
- FIG. 7 is a plan view and a cross-sectional view showing the configuration of another reinforcing member.
- FIG. 8 is a schematic diagram for explaining a torsional rigidity test method.
- FIG. 8 is a schematic diagram for explaining a torsional rigidity test method.
- FIG. 9 is a schematic diagram for explaining a method of a flexural rigidity test.
- FIG. 10 is a schematic diagram for explaining a method of a peeling load test.
- FIG. 11 is a schematic diagram showing the configuration of the laminate.
- FIG. 12 is a schematic diagram for explaining the press molding method.
- FIG. 13 is a schematic diagram for explaining the press molding method.
- FIG. 14 is a schematic diagram for explaining a method for manufacturing the housing.
- FIG. 15 is a schematic diagram for explaining a method for manufacturing the housing.
- Examples of the use of the case of the present invention include an attache case, a carry case, an electronic device case containing electronic device parts, and more specifically, a speaker, a display, an HDD, a notebook computer, and a mobile phone. , Digital still cameras, PDAs, plasma displays, televisions, lighting, refrigerators, and game machines. Among them, it is preferable for clamshell computers and tablet computers that have high torsional rigidity and require lightweight and thin walls. Used.
- FIG. 1 is a perspective view showing a configuration of a housing according to an embodiment of the present invention.
- a housing 1 according to an embodiment of the present invention includes a bottom cover 2 having a rectangular shape in plan view, a reinforcing member 3 having an opening joined to the bottom cover 2, and a rectangular shape in plan view.
- the top cover 4 is provided as a main component.
- the direction parallel to the short sides of the bottom cover 2 and the top cover 4 is in the x direction
- the direction parallel to the long sides of the bottom cover 2 and the top cover 4 is perpendicular to the y direction, the x direction, and the y direction. Is defined as the z direction (vertical direction).
- FIG. 2 is an exploded perspective view of the housing 1 shown in FIG.
- the bottom cover 2 includes a planar portion 21 having a rectangular shape in plan view parallel to the xy plane, and a standing wall portion 22 erected in the + z direction from the peripheral portion of the planar portion 21. I have.
- the thickness of the member forming the bottom cover 2 is desirably in the range of 0.1 mm or more and 0.8 mm or less.
- the elastic modulus of the member forming the bottom cover 2 is desirably in the range of 20 GPa or more and 120 GPa or less.
- the bottom cover 2 is preferably formed of any one of a metal material and a fiber reinforced composite material, and may be formed by combining these. From the viewpoint of expressing high torsional rigidity, the bottom cover 2 is preferably a seamless member formed of the same material. Further, from the viewpoint of productivity, the flat portion 21 having a simple shape is formed using a metal material or a fiber-reinforced composite material having high mechanical properties, and the standing wall portion 22 and the joint portion having a complicated shape are excellent in moldability.
- the resin material may be formed by injection molding or the like.
- a light metal material such as an aluminum alloy, a magnesium alloy, or a titanium alloy.
- Aluminum alloys include Al-Cu A2017, A2024, Al-Mn A3003, A3004, Al-Si A4032, Al-Mg A5005, A5052, A5083, Al-Mg-Si A6061, Examples thereof include A6063 and Al—Zn-based A7075.
- the magnesium alloy include Mg—Al—Zn-based AZ31, AZ61, and AZ91.
- Titanium alloys include alloys added with 11 to 23 types of palladium, alloys added with cobalt and palladium, 50 types ( ⁇ alloy), 60 types ( ⁇ - ⁇ alloy), and 80 types ( ⁇ alloy). -6Al-4V can be exemplified.
- Fibers such as carbon fiber, glass fiber, aramid fiber, boron fiber, PBO fiber, high-strength polyethylene fiber, alumina fiber, and silicon carbide fiber can be used as the reinforcing fiber used in the fiber-reinforced composite material. A mixture of two or more of them may be used. These reinforcing fibers can be used as fiber structures such as long fibers aligned in one direction, a single tow, a woven fabric, a knit, a non-woven fabric, a mat, and a braid.
- Matrix resins include thermosetting resins such as epoxy resins, phenol resins, benzoxazine resins, and unsaturated polyester resins, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polyethylene naphthalate.
- thermosetting resins such as epoxy resins, phenol resins, benzoxazine resins, and unsaturated polyester resins, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polyethylene naphthalate.
- Polyester resins such as phthalate and liquid crystal polyester, polyolefins such as polyethylene (PE), polypropylene (PP) and polybutylene, styrene resins and urethane resins, polyoxymethylene (POM), polyamide (PA), polycarbonate ( PC), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), polyphenylene sulfide (PPS), polyphenylene ether (PPE), modified PPE, polyimide ( I), polyamideimide (PAI), polyetherimide (PEI), polysulfone (PSU), modified PSU, polyethersulfone (PES), polyketone (PK), polyetherketone (PEK), polyetheretherketone (PEEK)
- Thermosetting resins such as polyether ketone ketone (PEKK), polyarylate (PAR), polyether nitrile (PEN), phenolic resin, and phenoxy resin can be used.
- thermosetting resin From the viewpoint of productivity and mechanical properties, it is desirable to use a thermosetting resin, and it is particularly desirable to use an epoxy resin. From the viewpoint of moldability, it is better to use a thermoplastic resin. Among them, a polyamide resin from the viewpoint of strength, a polycarbonate resin from the viewpoint of impact resistance, a polypropylene resin from the viewpoint of lightness, and a heat resistance viewpoint. It is desirable to use polyphenylene sulfide resin.
- the resin may be used not only as a matrix resin of a fiber reinforced composite material but also as a bottom cover, a top cover, or a reinforcing member made of the resin itself.
- the prepreg composed of the above-described reinforcing fiber and matrix resin as the material of each member.
- the reinforcing member 3 is a member having an opening. Specifically, the reinforcing member 3 includes a planar portion 31 having a rectangular shape in plan view parallel to the xy plane, and a standing wall portion 32 erected in the ⁇ z direction from the peripheral edge of the planar portion 31. ing. An electronic device may be loaded on the surface of the flat surface portion 31 facing the flat surface portion 21 of the bottom cover 2. The reinforcing member 3 is joined to the bottom cover 2 in a state where a hollow structure S1 is formed between the planar part 31 and the planar part 21 of the bottom cover 2 by joining to the planar part 21 of the bottom cover 2.
- the “reinforcing member having an opening” as used herein refers to a shape having an opening in a part of the reinforcing member, and includes a planar portion and a standing wall portion as shown in FIGS. 3 (a) and 3 (b). A member having a surface connecting them or a member having a curved surface may be used. Moreover, as shown in FIG. 3C, an example of the reinforcing member having an opening is a flat portion, a standing wall portion standing on the peripheral portion of the flat portion, and a joint portion extending from the peripheral portion of the standing wall portion. Or a reinforcing member having a curved surface portion and a joint portion extending from the peripheral edge portion of the curved surface portion.
- the bonding area in a plane parallel to the xy plane is desirably in the range of 10 cm 2 or more and 100 cm 2 or less. Specifically, when the bonding area is less than 10 cm 2 , when a load with a large deformation is applied to the housing 1, the reinforcing member 3 is peeled off from the bottom cover 2, and the original torsional rigidity cannot be expressed. On the other hand, when the joining area is larger than 100 cm 2, problems such as an increase in the weight of the casing 1 and a decrease in the volume of the hollow structure S1 occur as the joining area increases. For this reason, it is desirable that the bonding area be in the range of 10 cm 2 or more and 100 cm 2 or less.
- the maximum value of the distance (height of the reinforcing member 3 from the flat surface portion 21) h between the flat surface portion 31 of the reinforcing member 3 and the flat surface portion 21 of the bottom cover 2 is in the range of 3 mm or more and 30 mm or less. Is desirable.
- the height h of the reinforcing member 3 is one factor that develops torsional rigidity. For this reason, when the maximum value of the height h is less than 3 mm, the effect of the standing wall portion 32 in the housing 1 is small, and the original torsional rigidity cannot be expressed.
- the maximum value of the height h is longer than 30 mm, it is necessary to increase the thickness of the standing wall 32, resulting in a problem of an increase in the weight of the housing 1. For this reason, it is desirable that the maximum value of the height h be in the range of 3 mm or more and 30 mm or less.
- the joint portion 33 may be provided so as to extend from the peripheral portion of the standing wall portion 32 in the outward direction parallel to the xy plane. Further, as shown in FIG. 4B, the joint portion 33 may be provided so as to extend in the inward direction parallel to the xy plane from the peripheral portion of the standing wall portion 32. Further, as shown in FIGS. 5A and 5B, the angle ⁇ of the standing wall portion 32 with respect to the flat portion 21 of the bottom cover 2 (or the joint portion 33 of the reinforcing member 3) is 45 ° or more and 135 ° or less. It is desirable to be within the range. 5A shows a state where the angle ⁇ of the standing wall portion 32 is an acute angle, and FIG. 5B shows a state where the angle ⁇ of the standing wall portion 32 is an obtuse angle.
- FIG. 6 is a cross-sectional view showing an example of the configuration of the housing.
- the heating members D1 and D2 are disposed in the hollow structure S1 formed by joining the reinforcing member 3 and the bottom cover 2 or the top cover 4 together.
- the heating members D1 and D2 are desirably disposed on the surface of the reinforcing member 3 on the hollow structure S1 side.
- the “heat generating member” means a part that generates heat as the electronic device is operated, and particularly indicates a member that increases in temperature by 10 ° C. or more as the electronic device is operated.
- a heat generating member include an LED, a capacitor, an inverter, a reactor element, a thermistor element, a power transistor element, a motor, a CPU, and an electronic board on which these are mounted.
- the bending rigidity may be increased by disposing another reinforcing member in the hollow structure S1 formed between the flat portion 31 of the reinforcing member 3 and the flat portion 21 of the bottom cover 2.
- FIG. 7A is a plan view showing the configuration of another reinforcing member
- FIG. 7B is a cross-sectional view taken along line AA of FIG. 7A.
- another reinforcing member 5 is a member arranged to extend in the x direction at the center in the y direction of the hollow structure S1, and is a flat portion of the bottom cover 2. 21 and the flat portion 31 of the reinforcing member 3.
- the bottom surface cover 2 and the reinforcing member 3 are deformed synchronously when a load is applied. Therefore, the bending rigidity of the housing 1 can be improved. Further, the standing wall portion 22 of the bottom cover 2 or the standing wall portion 32 of the reinforcing member 3 and the other reinforcing member 5 are integrated, so that the standing wall portion of the bottom cover 2 and the reinforcing member 3 is particularly the housing 1. The torsional rigidity of the housing 1 can be improved.
- the other reinforcing member 5 is disposed so as to extend in the y direction at the center in the x direction of the hollow structure S1 as long as it is connected to the flat portion 21 of the bottom cover 2 and the flat portion 31 of the reinforcing member 3.
- the member may be a member arranged so as to extend in the diagonal direction of the hollow structure S1.
- the other reinforcing member 5 is preferably arranged so as to pass through a position where the amount of deflection of the flat portion 21 of the bottom cover 2 increases when a load is applied in the thickness direction. May be arranged, and members may cross each other.
- the other reinforcing member 5 be formed of an impact absorbing material having excellent elasticity such as a resin material having an elastomer or a rubber component, gel, and the like. The effect can also be expressed.
- the standing wall portion 32 may be omitted by using the flat surface portion 31 as a curved member.
- corrugated shape may be formed in the plane part 31 from a viewpoint which raises rigidity, or a viewpoint which utilizes space effectively.
- the reinforcing member 3 is joined to the bottom cover 2, but the reinforcing member 3 is joined to the top cover 4, and the space between the flat surface portion 31 of the reinforcing member 3 and the top cover 4.
- a hollow structure S1 may be formed on the substrate.
- the joint portions 33 are formed on all of the four standing wall portions 32 formed for each side of the plane portion 31, but the joint portion 33 is formed on at least one of the four standing wall portions 32. Should just be formed.
- the junction part 33 may be formed in two or more standing wall parts 32 adjacent among the four standing wall parts 32.
- the area of the joint portion 33 formed on one standing wall portion 32 is desirably 1 cm 2 or more.
- the thickness of the member forming the reinforcing member 3 is preferably in the range of 0.3 mm or more and 0.8 mm or less from the viewpoint of reducing the weight and thickness of the housing.
- the elastic modulus of the member forming the reinforcing member 3 is preferably in the range of 20 GPa or more and 120 GPa or less.
- the reinforcing member 3 is desirably formed of any one of the above-described metal material and fiber reinforced composite material, and the material can be selected according to the purpose of the reinforcing member 3. That is, from the viewpoint of developing a high reinforcing effect, it is preferable to use a metal material or fiber reinforced composite material having a high elastic modulus, and from the viewpoint of heat dissipation, it is preferable to use a metal material having a high thermal conductivity, and radio wave permeability. From the viewpoint of developing (antenna properties), it is preferable to use a resin or glass fiber reinforced composite material that is a non-conductive material. From the viewpoint of developing electromagnetic shielding properties (radio wave shielding properties), a metal that is a conductive material.
- a material or a carbon fiber composite material may be used.
- the reinforcing member 3 is formed of a fiber reinforced composite material, it is desirable that the reinforcing member 3 is constituted by a laminated body of continuous fiber prepregs. Moreover, it is desirable that the ratio of the linear expansion coefficient of the reinforcing member 3 to the linear expansion coefficient of the bottom cover 2 to which the reinforcing member 3 is joined is in the range of 0.1 or more and 10 or less.
- the reinforcing member 3 is joined to the flat portion 21 of the bottom cover 2 by heat welding.
- 23 peel load at °C is 60N / cm 2 or more, it is desirable in the 5000N / cm 2 within the range, 100 N / cm 2 or more, and more preferably in the 5000N / cm 2 within the following ranges.
- the heat welding method include an insert injection method, an outsert injection method, a vibration welding method, an ultrasonic welding method, a laser welding method, and a hot plate welding method.
- the adhesive surface between the reinforcing member 3 and the flat portion 21 has a peeling load at 200 ° C. of less than 60 N / cm 2 .
- the peeling load at 200 ° C. is more preferably 30 N / cm 2 or less.
- this peeling load is less than 60 N / cm 2 at 180 ° C., and that it can be easily peeled off at a lower temperature range, from the viewpoint of dismantling adhesion.
- the reinforcing member may be peeled off when used as a casing due to a temperature rise associated with the operation of the electronic component or the temperature of the usage environment. Therefore, it is desirable that the reinforcing member is bonded with high adhesive strength in the temperature range in which the housing is used, and that it can be easily peeled off in the temperature range where the housing is disassembled. Therefore, the peeling load at 80 °C 60N / cm 2 or more, and more preferably in the 5000N / cm 2 within the following ranges.
- the peeling load at 200 ° C. is desirably as low as possible, and is most desirably 10 N / cm 2 or less.
- the preferred because the lower limit as low peel force at 200 ° C. is not particularly limited, but is preferably 0N / cm 2 or more, because sometimes inferior in handling properties too low, with 1N / cm 2 or more More preferably.
- the reinforcing member 3 and the bottom cover 2 to which the reinforcing member 3 is joined are formed of a fiber reinforced composite material, and a thermoplastic resin is provided on at least one joining portion of the reinforcing member 3 and the bottom cover 2. It is desirable that the bottom cover 2 and the bottom cover 2 are joined via a thermoplastic resin.
- thermoplastic resin As a method of providing the thermoplastic resin at the joint portion, the reinforcing member 3 and the bottom cover 2 to which the reinforcing member 3 is joined using a fiber reinforced sheet (prepreg sheet) using a thermoplastic resin as a matrix resin or the top cover.
- preg sheet a fiber reinforced sheet
- thermoplastic resin as a matrix resin or the top cover.
- a method obtained by molding the face cover 4 may be mentioned. Since the molded body obtained by this method has a high proportion of thermoplastic resin on the surface, it is possible to have a wide adhesion area during bonding, and the degree of freedom of selection of the bonding location is increased. preferable. From the viewpoint of the mechanical properties of each member, it is preferably a fiber-reinforced composite material using a thermosetting resin as a matrix resin.
- thermoplastic resin As a method of providing a thermoplastic resin on such a member, the thermoplastic resin is heated. There is a method in which a melted melt or a solution obtained by dissolving a thermoplastic resin with a solvent is applied to provide the fiber reinforced composite material with the thermoplastic resin.
- a fiber reinforced sheet (prepreg sheet) using a thermosetting resin as a matrix resin is molded and cured, a film or nonwoven fabric made of a thermoplastic resin is laminated on the outermost layer of the fiber reinforced sheet (prepreg sheet). Examples of the method include heating and pressure forming the laminated body.
- the reinforcing member 3 and the bottom cover 2 or the top cover 4 are directly joined.
- a fiber-reinforced composite material having a thermoplastic resin at the joint between the reinforcing member 3 and / or the bottom surface cover 2 or the top surface cover 4 to be bonded to the reinforcing member 3 it is not necessary to use an adhesive other than each member. Since it becomes possible to join each member directly, the weight increase of the housing
- a suitable method for directly joining the reinforcing member 3 and the bottom cover 2 or the top cover 4 is made of a thermoplastic resin in the outermost layer of a fiber reinforced sheet (prepreg sheet) using a thermosetting resin as a matrix resin. In this method, a laminate in which a film or a non-woven fabric is laminated on the surface is used, but the thermoplastic resin used here can be selected from the group of thermoplastic resins exemplified as the matrix resin.
- thermoplastic resin having a melting point lower than a molding temperature for molding and curing a fiber reinforced sheet (prepreg sheet) in which the matrix resin is a thermosetting resin.
- preg sheet a fiber reinforced sheet
- fusing point of a thermoplastic resin is not specifically limited, From a viewpoint of expressing the heat resistance at the time of applying the housing
- the form of the thermoplastic resin is not particularly limited, and examples thereof include films, continuous fibers, woven fabrics, particles, and non-woven fabrics. From the viewpoint of handleability during the molding operation, it is preferable to be in the form of a film and non-woven fabric. .
- thermoplastic resin melts at the time of molding, and the thermoplastic resin spreads like a film on the surface of the molded body.
- the thermoplastic resin spreads like a film on the surface of the molded body.
- a thermoplastic resin is provided on both joining members to be joined.
- it is.
- the provided thermoplastic resin it is desirable that the substantially same thermoplastic resin is mutually selected.
- the “disassembling adhesion” includes not only that the reinforcing member 3 can be easily removed but also that it can be re-adhered, and expresses adhesiveness when re-adhering.
- a thermoplastic resin may be added, but it is preferable that the resin can be reattached without increasing the weight of the thermoplastic resin.
- the peeling load upon re-adhesion is preferably 50% or more, more preferably 70% or more of the original peeling load.
- the dismantling adhesion of the present invention joins the properties of thermoplastic resins, the point that the resin melts by heating and the mechanical properties decrease, and the property that solidifies at cooling or room temperature to express the original high mechanical properties. This was achieved by adapting to technology.
- a hole can be formed in the flat portion 31 and the standing wall portion 32 of the reinforcing member 3 as long as the torsional rigidity of the present invention is improved.
- it corresponds to the electronic component and the top cover 4 arranged in a space other than the hollow structure S1 defined by the electronic component built in the hollow structure S1, the bottom cover 2 and the top cover 4.
- a wiring cable for connecting a display, a keyboard, and the like is preferably formed in an arrangement for improving the air flow from the viewpoint of heat dissipation, for example, in the opposing standing wall 32.
- These holes are desirably 30% or less with respect to the surface area of the reinforcing member 3, and more desirably 15% or less from the viewpoint of torsional rigidity.
- the top cover 4 is joined to the peripheral edge of the standing wall 22 of the bottom cover 2.
- the top cover 4 has a smooth plate shape, but may have a plate shape having a curved surface or unevenness.
- the top cover 4 may be the same material and shape as the bottom cover 2, and even if the reinforcing member 3 is partitioned by the bottom cover 2 and the top cover 4 and is arranged and joined in the space.
- the casing 1 having high rigidity with respect to either surface can be obtained by adopting such a configuration.
- the top cover 4 may be an electronic device part such as a liquid crystal display or a keyboard. With such a configuration, the top cover 4 can be applied to a clamshell personal computer or a tablet personal computer.
- the reinforcing member 3 may be configured by a member having an opening, and the reinforcing member 3 may be joined to the bottom cover 2 or the top cover 4 to form the hollow structure S1.
- the projected area of the reinforcing member 3 in the direction of the bottom cover 2 or the top cover 4 to which the reinforcing member 3 is joined is the projected area of the bottom cover 2 or the top cover 4 to which the reinforcing member 3 is joined. It is desirable to adjust within the range of 60% or more and 95% or less.
- the arrangement position of the reinforcing member 3 is not particularly limited, but is preferably located at an equal position from the center position C of the bottom cover 2 or the top cover 4.
- the x direction or y The torsional rigidity in the direction can be isotropic. Further, from the viewpoint of effectively using a space other than the hollow structure S ⁇ b> 1 among the spaces defined by the bottom cover 2 and the top cover 4, the reinforcing member 3 is attached to either the bottom cover 2 or the top cover 4. You may bring it.
- the standing wall that contributes to the torsional rigidity of the present invention.
- the portion is formed at a position close to the center position of the bottom cover 2 or the top cover 4, and there arises a problem that the original torsional rigidity cannot be expressed.
- the projected area of the reinforcing member 3 is larger than 95% of the area of the bottom cover 2 or the top cover 4 to which the reinforcing member 3 is joined, high torsional rigidity can be expressed, but other than the hollow structure S1.
- the projected area in the direction of the bottom cover 2 or the top cover 4 to which the reinforcing member 3 is joined is 60% or more of the area of the bottom cover 2 or the top cover 4 to which the reinforcing member 3 is joined, It is desirable to be within the range of 95% or less.
- the shape of the projection surface of the reinforcing member 3, that is, the shape of the flat surface portion 31 is not particularly limited, but may be a circular shape or a polygonal shape other than the rectangular shape, and from the viewpoint of developing high deflection rigidity, the bottom cover 2 and / or a shape corresponding to the shape of the top cover 4 is preferable.
- the shape of the projection surface of the reinforcing member 3 is preferably a rectangular shape.
- the shape of the projection surface of the reinforcing member 3 is preferably a shape that matches the shape of the electronic component to be loaded.
- the shape of the projection surface of the reinforcing member 3 is preferably symmetric with respect to the axis in the x direction and / or the y direction.
- the reinforcing member 3 is configured by a member having an opening and the hollow member S1 is formed by joining the reinforcing member 3 to the bottom cover 2 or the top cover 4, the reinforcing member 3 of the bottom cover 2 is formed.
- the volume of the hollow structure S1 formed by the above is in the range of 55% or more and 95% or less of the volume of the space defined by the bottom cover 2 and the top cover 4.
- the volume of the hollow structure S1 is less than 55% of the volume of the space defined by the bottom surface cover 2 and the top surface cover 4, the height of the standing wall portion that contributes to the torsional rigidity of the present invention.
- the volume of the hollow structure S1 is larger than 95% of the volume of the space defined by the bottom cover 2 and the top cover 4, high torsional rigidity can be expressed, but the space other than the hollow structure S1 is small.
- the volume of the hollow structure S1 is in the range of 55% or more and 95% or less of the volume of the space defined by the bottom cover 2 and the top cover 4.
- Torsional rigidity test As shown in FIG. 8A, one side of the housing 1 is fixed with a U-shaped fixing jig 100, and the other side opposite to the fixed side is a supporting jig. After being fixed to the testing machine while being held at 101, the amount of displacement of the housing 1 when a load of 50 N is applied at a change rate of the angle ⁇ of 1 ° / min as shown in FIG. 8B is measured. The measured value was the torsional rigidity value of the casing.
- An "Instron” (registered trademark) universal testing machine 4201 type manufactured by Instron was used as a testing machine, and a support span was set to a test piece thickness of 16 using a three-point bending test jig (indenter diameter 10 mm, fulcrum diameter 10 mm). The bending elastic modulus was measured by setting to double. The test piece was tested under the conditions of a moisture content of 0.1% by mass or less, an atmospheric temperature of 23 ° C., and a humidity of 50% by mass.
- the bottom cover 2 or the top cover 4 of the housing 1 is fixed with a fixing jig 103, and the reinforcing member 3 is fixed with a tension jig 104.
- a tensile load F was applied with each member fixed, and evaluation was performed until the reinforcing member 3 was peeled off or the tensile jig 104 was detached from the reinforcing member 3.
- the adhesion area at this time was calculated by measuring the width and length of the joining surface of the reinforcing member 3 before joining. When joining was made partially, those areas were measured and added together to obtain the joining area.
- the peeling load of the reinforcing member 3 was calculated from the obtained tensile load value and the bonding area.
- the peeling load of the reinforcing member 3 at 200 ° C. was set in the thermostatic chamber together with the jig for fixing the housing 1, and the ambient temperature in the thermostatic bath was raised to 200 ° C. After maintaining the temperature for 10 minutes after the temperature rise, evaluation was performed by applying a tensile load in the same manner as the peeling load test of the reinforcing member 3.
- Example 1 Example 1- (1): Production of bottom cover Seven sheets having a predetermined size were cut out from the material 1. Four of them are cut so that the fiber direction of the prepreg is parallel to the longitudinal direction (x direction in FIG. 1), and the remaining three sheets have the fiber direction in the lateral direction (y direction in FIG. 1). It was made parallel. In this embodiment, the lateral direction (y direction) is 0 °, and as shown in FIG. 11, the prepreg sheet 105a having a fiber direction of 90 ° and the prepreg sheet 105b having a fiber direction of 0 ° are symmetrically laminated. A laminate composed of seven prepreg sheets was obtained.
- a laminate 107 obtained in the pair of molds 106 was disposed.
- the hot platen temperature of the press molding apparatus is set to 150 ° C., and the mold 106 is moved as shown in FIG. did.
- the mold 106 was opened, and the molded product was taken out from the mold 106. Trimming was performed so as to be the height of the obtained molded product, and a bottom cover was obtained.
- Example 1- (2) Production of top cover A molded product was obtained in the same manner as in Example 1- (1) except that a mold having a smooth shape was obtained. Trimming was performed so that the dimension of the obtained molded product was a desired size, and a top cover was obtained.
- Example 1- (3) Production of reinforcing member A molded product was obtained in the same manner as in Example 1- (1) except that a mold 106 as shown in FIG. 13 was used. Trimming was performed so that the joint surface of the obtained molded product had a desired width, and a reinforcing member was obtained.
- Example 1- (4) Production of Case Each member obtained in Example 1- (1) to (3) was joined using an adhesive 108 as shown in FIG. The molding conditions and evaluation results in Example 1 are shown in Table 2 below.
- Example 2 A casing was obtained in the same manner as in Examples 1- (1) to (4) except that a bottom cover having the dimensions shown in Table 2 was molded and used. The molding conditions and evaluation results in Example 2 are shown in Table 2 below.
- Example 3 A case was obtained in the same manner as in Examples 1- (1) to (4) except that the materials shown in Table 2 were used as the bottom cover, the hot platen temperature was 220 ° C., and the molding pressure was 10 MPa. .
- the molding conditions and evaluation results in Example 3 are shown in Table 2 below.
- Example 4 A case was obtained in the same manner as in Examples 1- (1) to (4) except that the materials shown in Table 2 were used as the bottom cover, the hot platen temperature was 200 ° C., and the molding pressure was 10 MPa. .
- the molding conditions and evaluation results in Example 4 are shown in Table 2 below.
- Example 5 A casing was obtained in the same manner as in Examples 1- (1) to (4) except that a bottom cover made of the material shown in Table 3 was used. The molding conditions and evaluation results in Example 5 are shown in Table 3 below.
- Example 6 A casing was obtained in the same manner as in Examples 1- (1) to (4) except that the reinforcing member made of the material shown in Table 3 was used. The molding conditions and evaluation results in Example 6 are shown in Table 3 below.
- Example 7 As another reinforcing member, 25 sheets of the material 1 were laminated so that the prepreg sheets of 0 ° and the prepreg sheets of 90 ° were alternately laminated so as to have a thickness of 3 mm. In the same manner as in Example 1- (1), heating and pressing were performed with a press molding apparatus to obtain a molded product. The obtained molded product was processed so as to have a width of 7.2 mm, and another reinforcing member having the dimensions shown in Table 3 was obtained. Another obtained reinforcing member was arranged as shown in FIG. 7 and joined with an adhesive, and the other cases were obtained in the same manner as in Examples 1- (1) to (4). The molding conditions and evaluation results in Example 7 are shown in Table 3 below.
- Example 8 A casing was obtained in the same manner as in Examples 1- (1) to (4) except that reinforcing members having the dimensions shown in Table 3 were molded and used. The molding conditions and evaluation results in Example 8 are shown in Table 3 below.
- Example 9 Example 1 A hot-melt resin (manufactured by Cemedine Co., Ltd.) obtained by melting a bottom cover and a reinforcing member obtained in the same manner as in (1) and (3) with a hot melt applicator at 140 ° C. at the joint of the reinforcing member. HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes. A casing was obtained in the same manner as in Example 1- (1) to (4) except for the way of joining. The molding conditions and evaluation results in Example 9 are shown in Table 4 below.
- Example 10- Production of Bottom Cover Film having a thickness of 50 ⁇ m made of copolymerized polyamide resin (“Amilan (registered trademark)” CM8000, manufactured by Toray Industries, Inc.) on the side to be joined to the reinforcing member Were laminated to obtain a laminate. A bottom cover was obtained in the same manner as in Example 1- (1) except that the obtained laminate was used.
- Example 10- (2) Production of top cover As in Example 10- (1), a copolymerized polyamide resin (“Amilan” manufactured by Toray Industries, Inc.) was formed on the surface to be joined to the bottom cover. ) A film having a thickness of 50 ⁇ m made of “CM8000) was laminated to obtain a laminate. A top cover was obtained in the same manner as in Example 1- (2) except that the obtained laminate was used.
- a copolymerized polyamide resin (“Amilan” manufactured by Toray Industries, Inc.) was formed on the surface to be joined to the bottom cover.
- a film having a thickness of 50 ⁇ m made of “CM8000) was laminated to obtain a laminate.
- a top cover was obtained in the same manner as in Example 1- (2) except that the obtained laminate was used.
- Example 10- (3) Production of reinforcing member Similar to Example 10- (1), a copolymerized polyamide resin ("Amilan (registered trademark)" manufactured by Toray Industries, Inc.) was formed on the surface to be joined to the bottom cover. A film made of “CM8000” and having a thickness of 50 ⁇ m was laminated to obtain a laminate. A reinforcing member was obtained in the same manner as in Example 1- (3) except that the obtained laminate was used.
- Example 10- (4) Fabrication of casing
- the reinforcing member obtained in Example 10- (3) was superposed on the bottom cover obtained in Example 10- (1) in the joining form, as shown in FIG.
- Using the joining jig 109 it was placed in a press molding apparatus set so that the surface temperature of the joining jig 109 was 180 ° C., and heated and pressurized. After 1 minute, the bottom cover 2, the reinforcing member 3, and the joining jig 109 were taken out of the press molding apparatus and cooled. After 5 minutes, the joining jig 109 was removed to obtain an integrated product of the bottom cover 2 and the reinforcing member 3. Thereafter, a housing was obtained in the same manner as in Example 1- (4).
- the molding conditions and evaluation results in Example 10 are shown in Table 4 below.
- Example 11 A casing was obtained in the same manner as in Example 10 except that a reinforcing member having the dimensions shown in Table 4 was molded and used. The molding conditions and evaluation results in Example 11 are shown in Table 4 below.
- Example 12 to 14 A casing was obtained in the same manner as in Example 10 except that the reinforcing members having the dimensions shown in Tables 4 and 5 were molded and used. The molding conditions and evaluation results in Examples 12 to 14 are shown in Table 4 and Table 5 below.
- Reference Example 1 A bottom cover and a reinforcing member were obtained in the same manner as in Example 12 except that the dimensions shown in Table 5 were used. An electronic component was placed in the hollow structure S1 formed by the bottom cover and the reinforcing member, and the joint was joined by an ultrasonic welder in the same manner as in Example 12. In addition, a liquid crystal display was prepared as a top cover and joined to the bottom cover with a double-sided tape. The molding conditions and evaluation results for the electronic device casing obtained in Reference Example 1 are shown in Table 5 below.
- Comparative Example 1 A casing was obtained in the same manner as in Examples 1- (1) to (4) except that no reinforcing member was used.
- the molding conditions and evaluation results in Comparative Example 1 are shown in Table 6 below.
- Comparative Example 2 A casing was obtained in the same manner as in Comparative Example 1 except that the laminate in which the material 1 and the material 2 were laminated was used as the material for the bottom cover.
- the molding conditions and evaluation results in Comparative Example 2 are shown in Table 6 below.
- Comparative Example 3- (2) Production of Reinforcing Member and Top Cover Except that the mold used was changed so as to have the dimensions shown in Table 6, in the same manner as Comparative Example 3- (1), the reinforcing member and I got the top cover.
- Comparative Example 3- (3) Production of Case The top cover was joined using an adhesive in the same manner as in Example 1- (4) except that the obtained bottom cover and reinforcing member were used.
- the molding conditions and evaluation results in Comparative Example 3 are shown in Table 6 below.
- Example 1 was a housing that can mount many electronic devices or the like inside the hollow structure because the hollow structure has a high ratio while exhibiting very high torsional rigidity.
- Example 7 there was also an effect of another reinforcing member, and it was confirmed that not only torsional rigidity but also higher flexural rigidity was developed.
- Examples 9 to 11 since the bottom cover and the reinforcing member are joined by heat welding, it is possible to dismantle the joint by heating while exhibiting high torsional rigidity and deflection rigidity. It is preferable from the viewpoint.
- Examples 10 and 11 since the reinforcing member and the bottom cover are directly joined, there is little increase in weight compared to the case where an adhesive, hot melt resin, or the like is used, which is preferable from the viewpoint of weight reduction. .
- Examples 3 and 4 exhibited not only high torsional rigidity but also flexural rigidity by using a metal material having high mechanical properties of the bottom cover. Moreover, since it is also a material with high heat conductivity, it is preferable also from a viewpoint of thermal characteristics.
- Example 5 is preferable from the viewpoint of enabling radio wave communication as well as high torsional rigidity because a non-conductive material having electromagnetic wave permeability is used for the bottom cover.
- the bottom cover is thinned, and the torsional rigidity is maintained while contributing to weight reduction and thinning of the casing.
- Reference Example 1 as a method of utilizing the casing, electronic components were arranged in a hollow structure, and an electronic device was manufactured using a liquid crystal display as a top cover. It was confirmed that by satisfying the requirements of the present invention, it is possible to provide an electronic device that exhibits high torsional rigidity and flexural rigidity.
- Comparative Examples 1 and 2 were very weak against torsion and the internal electronic components could be damaged. Moreover, although the comparative example 3 uses the reinforcement member, the resin material is used for each member, and the bending rigidity was inferior.
- Torsional rigidity test As shown in FIG. 8A, one side of the housing 1 is fixed with a U-shaped fixing jig 100, and the other side opposite to the fixed side is a supporting jig. After being fixed to the testing machine while being held at 101, the amount of displacement of the housing 1 when a load of 10 N is applied with a change rate of the angle ⁇ of 1 ° / min as shown in FIG. 8B is measured. The measured value was the torsional rigidity value of the casing.
- An "Instron” (registered trademark) universal testing machine 4201 type manufactured by Instron was used as a testing machine, and a support span was set to a test piece thickness of 16 using a three-point bending test jig (indenter diameter 10 mm, fulcrum diameter 10 mm). The bending elastic modulus was measured by setting to double. The test piece was tested under the conditions of a moisture content of 0.1% by mass or less, an atmospheric temperature of 23 ° C., and a humidity of 50% by mass.
- the bottom cover 2 or the top cover 4 of the housing 1 is fixed with a fixing jig 103, and the reinforcing member 3 is fixed with a tension jig 104.
- a tensile load F was applied with each member fixed, and evaluation was performed until the reinforcing member 3 was peeled off or the tensile jig 104 was detached from the reinforcing member 3.
- the adhesion area at this time was calculated by measuring the width and length of the joining surface of the reinforcing member 3 before joining. When joining was made partially, those areas were measured and added together to obtain the joining area.
- the peeling load of the reinforcing member 3 was calculated from the obtained tensile load value and the bonding area.
- the peeling load of the reinforcing member 3 at 200 ° C. was set in the thermostatic chamber together with the jig for fixing the housing 1, and the ambient temperature in the thermostatic bath was raised to 200 ° C. After maintaining the temperature for 10 minutes after the temperature rise, evaluation was performed by applying a tensile load in the same manner as the peeling load test of the reinforcing member 3.
- Aluminum alloy A5052 was prepared as material 13. The properties of material 13 are shown in Table 7 below.
- Magnesium alloy AZ31 was prepared as material 14. The properties of material 14 are shown in Table 7 below.
- a titanium alloy Ti-6Al-4V was prepared as material 15. The properties of material 15 are shown in Table 7 below.
- [Material 16] A terpolymer of polyamide 6 resin (“Amilan” (registered trademark) CM1021T manufactured by Toray Industries, Inc.) and 90% by mass of polyamide 6/66/610 (“Amilan” (registered trademark) manufactured by Toray Industries, Inc.) CM4000) using a master batch composed of 10% by mass, a thermoplastic resin film having a basis weight of 124 g / m 2 was prepared and prepared as material 16. The properties of material 16 are shown in Table 7 below.
- Example 21- (1) Production of bottom cover Seven sheets having a predetermined size were cut out from the material 11. Four of them are cut so that the fiber direction of the prepreg is parallel to the longitudinal direction (x direction in FIG. 1), and the remaining three sheets have the fiber direction in the lateral direction (y direction in FIG. 1). It was made parallel.
- the lateral direction (y direction) is 0 °
- the prepreg sheet 105a having a fiber direction of 90 ° and the prepreg sheet 105b having a fiber direction of 0 ° are symmetrically laminated. A laminate composed of seven prepreg sheets was obtained.
- a laminate 107 obtained in the pair of molds 106 was disposed.
- the hot platen temperature of the press molding apparatus is set to 150 ° C., and the mold 106 is moved as shown in FIG. did.
- the mold 106 was opened, and the molded product was taken out from the mold 106. Trimming was performed so that the standing wall of the obtained molded product had a desired height, and a bottom cover was obtained.
- Example 21- (2) Production of top cover A molded product was obtained in the same manner as in Example 21- (1) except that a mold having a smooth shape was obtained. Trimming was performed so that the dimension of the obtained molded product was a desired size, and a top cover was obtained.
- Example 21- (3) Production of reinforcing member A molded product was obtained in the same manner as in Example 21- (1) except that a mold 106 as shown in FIG. 13 was used. Trimming was performed so that the joint surface of the obtained molded product had a desired width, and a reinforcing member was obtained.
- Example 21- (4) Production of Case Each member obtained in Example 21- (1) to (3) was bonded using an adhesive 108 as shown in FIG. The molding conditions and evaluation results in Example 21 are shown in Table 8 below.
- Example 22 A casing was obtained in the same manner as in Example 21- (1) to (4) except that a reinforcing member made of the material shown in Table 8 was used. The molding conditions and evaluation results in Example 22 are shown in Table 8 below.
- Example 23 A casing was obtained in the same manner as in Example 22 except that the bottom cover having the dimensions shown in Table 8 was used. The molding conditions and evaluation results in Example 23 are shown in Table 8 below.
- Example 24 A case was obtained in the same manner as in Examples 21- (1) to (4) except that the materials listed in Table 8 were used as the reinforcing member, the hot platen temperature was 220 ° C., and the molding pressure was 10 MPa. .
- the molding conditions and evaluation results in Example 24 are shown in Table 8 below.
- Example 25 A case was obtained in the same manner as in Examples 21- (1) to (4) except that the materials shown in Table 9 were used as the reinforcing member, the hot platen temperature was 200 ° C., and the molding pressure was 10 MPa. .
- the molding conditions and evaluation results in Example 25 are shown in Table 9 below.
- Example 26 A case was obtained in the same manner as in Examples 21- (1) to (4) except that the materials shown in Table 9 were used as the reinforcing member, the hot platen temperature was 240 ° C., and the molding pressure was 10 MPa. .
- the molding conditions and evaluation results in Example 26 are shown in Table 9 below.
- Example 27 A casing was obtained in the same manner as in Example 21- (1) to (4) except that a reinforcing member having the dimensions shown in Table 9 was molded and used. The molding conditions and evaluation results in Example 27 are shown in Table 9 below.
- Example 28 As another reinforcing member, 25 sheets of the material 11 were laminated so that the prepreg sheets of 0 ° and the prepreg sheets of 90 ° were alternately laminated so as to have a thickness of 3 mm. In the same manner as in Example 21- (1), heating and pressing were performed with a press molding apparatus to obtain a molded product. The obtained molded product was processed so as to have a width of 7.2 mm, and another reinforcing member having the dimensions shown in Table 9 was obtained. Another reinforcing member obtained was arranged as shown in FIG. 7 and joined with an adhesive, and the other cases were obtained in the same manner as in Example 21- (1) to (4). The molding conditions and evaluation results in Example 28 are shown in Table 9 below.
- Example 21- Hot melt resin manufactured by Cemedine Co., Ltd. obtained by melting the bottom cover and the reinforcing member obtained in the same manner as in (1) and (3) with a 140 ° C. hot melt applicator at the joint of the reinforcing member HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes.
- a casing was obtained in the same manner as in Example 21- (1) to (4) except for the joining method.
- the molding conditions and evaluation results in Example 29 are shown in Table 10 below.
- Example 30 Production of Bottom Cover Film having a thickness of 50 ⁇ m made of copolymerized polyamide resin (“Amilan (registered trademark)” CM8000 manufactured by Toray Industries, Inc.) on the side to be joined to the reinforcing member Were laminated to obtain a laminate. A bottom cover was obtained in the same manner as in Example 21- (1) except that the obtained laminate was used.
- Example 30- (2) Production of top cover As in Example 30- (1), a copolymerized polyamide resin (“Amilan” manufactured by Toray Industries, Inc.) was formed on the surface to be the joint surface with the bottom cover. ) A film having a thickness of 50 ⁇ m made of “CM8000) was laminated to obtain a laminate. A top cover was obtained in the same manner as in Example 21- (2) except that the obtained laminate was used.
- a copolymerized polyamide resin (“Amilan” manufactured by Toray Industries, Inc.) was formed on the surface to be the joint surface with the bottom cover.
- a film having a thickness of 50 ⁇ m made of “CM8000) was laminated to obtain a laminate.
- a top cover was obtained in the same manner as in Example 21- (2) except that the obtained laminate was used.
- Example 30- (3) Production of reinforcing member Similar to Example 30- (1), a copolymer polyamide resin ("Amilan (registered trademark)" manufactured by Toray Industries, Inc.) A film made of “CM8000” and having a thickness of 50 ⁇ m was laminated to obtain a laminate. A reinforcing member was obtained in the same manner as in Example 21- (3) except that the obtained laminate was used.
- Example 30- (4) Fabrication of casing
- the reinforcing member obtained in Example 30- (3) was superposed on the bottom cover obtained in Example 30- (1) in the joining form, as shown in FIG.
- Using the joining jig 109 it was placed in a press molding apparatus set so that the surface temperature of the joining jig 109 was 180 ° C., and heated and pressurized. After 1 minute, the bottom cover 2, the reinforcing member 3, and the joining jig 109 were taken out of the press molding apparatus and cooled. After 5 minutes, the joining jig 109 was removed to obtain an integrated product of the bottom cover 2 and the reinforcing member 3. Thereafter, a housing was obtained in the same manner as in Example 21- (1) to (4).
- the molding conditions and evaluation results in Example 30 are shown in Table 10 below.
- Example 31 A material was obtained in the same manner as in Example 24 except that a bottom cover and a top cover were prepared and used as in Example 30. Each member was joined in the same manner as in Example 30- (4) to obtain a casing. The molding conditions and evaluation results in Example 31 are shown in Table 10 below.
- Example 32 A material was obtained in the same manner as in Example 28 except that a bottom cover, a top cover, and a reinforcing member were obtained as in Example 30. Each member was joined in the same manner as in Example 30- (4) to obtain a casing. The molding conditions and evaluation results in Example 32 are shown in Table 10 below.
- Example 33 to 35 A casing was obtained in the same manner as in Example 30 except that a reinforcing member having the dimensions shown in Table 11 was used. The molding conditions and evaluation results in Examples 33 to 35 are shown in Table 11 below.
- Comparative Example 11 A casing was obtained in the same manner as Example 21- (1) to (4) except that the reinforcing member was not used.
- the molding conditions and evaluation results in Comparative Example 11 are shown in Table 12 below.
- Comparative Example 12 A casing was obtained in the same manner as in Comparative Example 11 except that a laminate in which the material 11 and the material 12 were laminated was used as the material for the bottom cover.
- the molding conditions and evaluation results in Comparative Example 12 are shown in Table 12 below.
- Comparative Example 13- (1) Production of Bottom Cover Using a laminate in which 10 materials shown in Table 12 were laminated, a press molding apparatus, and a pair of molds 106 as shown in FIG. A laminate was placed in the mold 106. At this time, the hot platen temperature of the press molding apparatus was set to 260 ° C., and pressurization was performed while the molding pressure was maintained at 1.0 MPa. After 10 minutes, cooling water was passed through the hot platen of the press molding apparatus to start cooling. After the mold temperature reached 100 ° C. or lower, the mold 106 was opened, and the molded product was taken out from the mold 106. Trimming was performed so that the standing wall of the obtained molded product had a desired height, and a bottom cover was obtained.
- Comparative Example 13- (2) Production of Reinforcing Member and Top Cover Except that the mold used was changed so as to have the dimensions shown in Table 12, the reinforcing member and the top cover were the same as in Comparative Example 13- (1). I got the top cover.
- Comparative Example 13- (3) Production of Case The top cover was joined using an adhesive in the same manner as in Example 21- (4) except that the obtained bottom cover and reinforcing member were used.
- the molding conditions and evaluation results in Comparative Example 13 are shown in Table 12 below.
- Example 21 was a housing that can mount a large number of electronic devices and the like inside the hollow structure because the hollow structure has a high ratio while exhibiting very high torsional rigidity.
- Example 28 and 32 it was confirmed that not only torsional rigidity but also flexural rigidity was exhibited due to the effect of another reinforcing member.
- Examples 29 to 32 since the top cover and the reinforcing member are joined by heat welding, it is possible to disassemble the joint by heating while exhibiting high torsional rigidity and deflection rigidity. Or from the viewpoint of recycling.
- Examples 30 to 32 since the reinforcing member and the bottom cover are directly joined, there is little increase in weight compared to the case of using an adhesive, hot melt resin, or the like, which is preferable from the viewpoint of weight reduction. .
- Examples 33 and 34 are made by reducing the thickness of each member, and contribute to reducing the weight and the thickness of the housing while maintaining torsional rigidity.
- Reference Example 11 as a method for utilizing the housing, electronic components were arranged in a hollow structure, and an electronic device was manufactured using a liquid crystal display as a top cover. It was confirmed that by satisfying the requirements of the present invention, it is possible to provide a housing that exhibits high torsional rigidity and flexural rigidity.
- Comparative Examples 11 and 12 were very weak against torsion, and the internal electronic components could be damaged. Moreover, although the comparative example 13 also used the reinforcing member, it did not satisfy the requirements of the present invention, and it was impossible to develop satisfactory torsional rigidity.
- Torsional rigidity test As shown in FIG. 8A, one side of the housing 1 is fixed with a U-shaped fixing jig 100, and the other side opposite to the fixed side is a supporting jig. After being fixed to the testing machine while being held at 101, the amount of displacement of the housing 1 when a load of 10 N is applied with a change rate of the angle ⁇ of 1 ° / min as shown in FIG. 8B is measured. The measured value was the torsional rigidity value of the casing.
- An "Instron” (registered trademark) universal testing machine 4201 type (manufactured by Instron) is used as a testing machine, and a support span is set to a specimen thickness of 16 using a three-point bending test jig (indenter diameter 10 mm, fulcrum diameter 10 mm) The bending elastic modulus was measured by setting to double. The test piece was tested under the conditions of a moisture content of 0.1% by mass or less, an atmospheric temperature of 23 ° C., and a humidity of 50% by mass.
- the bottom cover 2 or the top cover 4 of the housing 1 is fixed with a fixing jig 103, and the reinforcing member 3 is fixed with a tension jig 104.
- a tensile load F was applied with each member fixed, and evaluation was performed until the reinforcing member 3 was peeled off or the tensile jig 104 was detached from the reinforcing member 3.
- the adhesion area at this time was calculated by measuring the width and length of the joining surface of the reinforcing member 3 before joining. When joining was made partially, those areas were measured and added together to obtain the joining area.
- the peeling load of the reinforcing member 3 was calculated from the obtained tensile load value and the bonding area.
- the peeling load of the reinforcing member 3 at 200 ° C. was installed in the thermostatic chamber together with the jig for fixing the housing 1, and the ambient temperature in the thermostatic bath was raised to 200 ° C. After maintaining the temperature for 10 minutes after the temperature rise, evaluation was performed by applying a tensile load in the same manner as the peeling load test of the reinforcing member 3.
- Aluminum alloy A5052 was prepared as material 23. The properties of material 23 are shown in Table 13 below.
- Magnesium alloy AZ31 was prepared as material 24. The properties of material 24 are shown in Table 13 below.
- Example 41- (1) Production of bottom cover Seven sheets having a predetermined size were cut out from the material 21. Four of them are cut so that the fiber direction of the prepreg is parallel to the longitudinal direction (x direction in FIG. 1), and the remaining three sheets have the fiber direction in the lateral direction (y direction in FIG. 1). It was made parallel.
- the lateral direction (y direction) is 0 °
- the prepreg sheet 105a having a fiber direction of 90 ° and the prepreg sheet 105b having a fiber direction of 0 ° are symmetrically laminated. A laminate composed of seven prepreg sheets was obtained.
- a laminate 107 obtained in the pair of molds 106 was disposed.
- the hot platen temperature of the press molding apparatus is set to 150 ° C., and the mold 106 is moved as shown in FIG. did.
- the mold 106 was opened, and the molded product was taken out from the mold 106. Trimming was performed so that the standing wall of the obtained molded product had a desired height, and a bottom cover was obtained.
- Example 41- (2) Production of top cover A molded product was obtained in the same manner as in Example 41- (1) except that a mold having a smooth shape was obtained. Trimming was performed so that the dimension of the obtained molded product was a desired size, and a top cover was obtained.
- Example 41- (3) Production of reinforcing member A molded product was obtained in the same manner as in Example 41- (1) except that a mold 106 as shown in FIG. 13 was used. Trimming was performed so that the joint surface of the obtained molded product had a desired width, and a reinforcing member was obtained.
- Example 41- (4) Production of Case Each member obtained in Example 41- (1) to (3) was joined using an adhesive 108 as shown in FIG. The molding conditions and evaluation results in Example 41 are shown in Table 14 below.
- Example 42 A casing was obtained in the same manner as in Example 41- (1) to (4) except that the materials listed in Table 14 were used. The molding conditions and evaluation results in Example 42 are shown in Table 14 below.
- Example 43 A case was obtained in the same manner as in Examples 41- (1) to (4) except that the materials shown in Table 14 were used, the hot platen temperature was set to 220 ° C., and the molding pressure was set to 10 MPa. The molding conditions and evaluation results in Example 43 are shown in Table 14 below.
- Example 44 Using the injection molding machine, the materials listed in Table 14 were set so that the cylinder temperature was 260 ° C. and the mold temperature was 80 ° C., and injection molding was performed to obtain each member. Using the obtained member, a housing was obtained in the same manner as in Example 41- (4). The molding conditions and evaluation results in Example 44 are shown in Table 14 below.
- Example 45 A bottom cover and a top cover were produced in the same manner as in Example 43, and a reinforcing member was produced in the same manner as in Example 44. Using the obtained member, a housing was obtained in the same manner as in Example 41- (4). The molding conditions and evaluation results in Example 45 are shown in Table 15 below.
- Example 46 A bottom cover and a top cover were produced in the same manner as in Example 43, and a reinforcing member was produced in the same manner as in Example 42. Using the obtained member, a housing was obtained in the same manner as in Example 41- (4). The molding conditions and evaluation results in Example 46 are shown in Table 15 below.
- Example 41--A hot melt resin manufactured by Cemedine Co., Ltd. obtained by melting the bottom cover and the reinforcing member obtained in the same manner as in (1) and (3) with a hot melt applicator at 140 ° C. at the joint of the reinforcing member. HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes.
- a casing was obtained in the same manner as in Example 41- (1) to (4) except for the joining method.
- the molding conditions and evaluation results in Example 47 are shown in Table 15 below.
- Example 48 Example 42- Hot melt resin (manufactured by Cemedine Co., Ltd.) obtained by melting a bottom cover and a reinforcing member obtained in the same manner as in (1) and (3) with a 140 ° C. hot melt applicator at the joint of the reinforcing member HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes.
- a casing was obtained in the same manner as in Example 42- (1) to (4) except for the joining method.
- the molding conditions and evaluation results in Example 48 are shown in Table 15 below.
- Example 43- A hot melt resin (manufactured by Cemedine Co., Ltd.) obtained by melting the bottom cover and the reinforcing member obtained in the same manner as in (1) and (3) at the joint of the reinforcing member with a 140 ° C. hot melt applicator. HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes.
- a casing was obtained in the same manner as in Example 43- (1) to (4) except for the joining method.
- the molding conditions and evaluation results in Example 49 are shown in Table 16 below.
- Example 44- Hot melt resin manufactured by Cemedine Co., Ltd. obtained by melting a bottom cover and a reinforcing member obtained in the same manner as in (1) and (3) with a 140 ° C. hot melt applicator at the joint of the reinforcing member HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes.
- a casing was obtained in the same manner as in Example 44- (1) to (4) except for the joining method.
- the molding conditions and evaluation results in Example 50 are shown in Table 16 below.
- Example 45- A hot melt resin (manufactured by Cemedine Co., Ltd.) obtained by melting the bottom cover and the reinforcing member obtained in the same manner as in (1) and (3) with a 140 ° C. hot melt applicator at the joint of the reinforcing member. HM712) was applied, the reinforcing members were overlapped, and a weight was placed from above, and joined as they were for 3 minutes. A casing was obtained in the same manner as in Example 45- (1) to (4) except for the joining method. The molding conditions and evaluation results in Example 51 are shown in Table 16 below.
- Example 52 A bottom cover and a top cover were produced in the same manner as in Example 44. Using the injection molding machine, the materials listed in Table 16 were set to a cylinder temperature of 280 ° C. and a mold temperature of 100 ° C., and injection molding was performed to obtain a reinforcing member. Apply the hot melt resin (HM712 manufactured by Cemedine Co., Ltd.) obtained by melting the bottom cover and the reinforcing member to the joint of the reinforcing member with a hot melt applicator at 140 ° C. It was put on and joined as it was for 3 minutes. A casing was obtained in the same manner as in Example 50- (1) to (4) except for the joining method. The molding conditions and evaluation results in Example 52 are shown in Table 16 below.
- Example 53 Each member was obtained in the same manner as in Example 46. Apply the hot melt resin (HM712 manufactured by Cemedine Co., Ltd.) obtained by melting the bottom cover and the reinforcing member to the joint of the reinforcing member with a hot melt applicator at 140 ° C. It was put on and joined as it was for 3 minutes. A casing was obtained in the same manner as in Example 46- (1) to (4) except for the joining method. The molding conditions and evaluation results in Example 53 are shown in Table 17 below.
- HM712 manufactured by Cemedine Co., Ltd.
- Example 54 As another reinforcing member, the material 25 was injection-molded using an injection molding machine at a cylinder temperature of 260 ° C. and a mold temperature of 80 ° C. to obtain a plate-shaped molded product having a thickness of 3 mm. The obtained molded product was processed so as to have a width of 7.2 mm, and another reinforcing member having the dimensions shown in Table 17 was obtained. Another reinforcing member obtained was arranged as shown in FIG. 7 and joined with an adhesive, and the other cases were obtained in the same manner as in Examples 50- (1) to (4). The molding conditions and evaluation results in Example 54 are shown in Table 17 below.
- Example 50- The bottom cover and the reinforcing member obtained in the same manner as in (1) and (2) were joined by an ultrasonic welding method. A casing was obtained in the same manner as in Example 50- (1) to (4) except for the joining method. The molding conditions and evaluation results in Example 55 are shown in Table 17 below.
- Example 56- (1) Production of Bottom Cover Film having a thickness of 50 ⁇ m made of copolymerized polyamide resin (“Amilan (registered trademark)” CM8000, manufactured by Toray Industries, Inc.) on the side to be joined to the reinforcing member Were laminated to obtain a laminate. A bottom cover was obtained in the same manner as in Example 41- (1) except that the obtained laminate was used.
- Example 56- (2) Production of top cover As in Example 56- (1), a copolymerized polyamide resin (“Amilan” manufactured by Toray Industries, Inc.) was formed on the surface to be joined to the bottom cover. ) A film having a thickness of 50 ⁇ m made of “CM8000) was laminated to obtain a laminate. A top cover was obtained in the same manner as in Example 41- (2) except that the obtained laminate was used.
- a copolymerized polyamide resin (“Amilan” manufactured by Toray Industries, Inc.) was formed on the surface to be joined to the bottom cover.
- a film having a thickness of 50 ⁇ m made of “CM8000) was laminated to obtain a laminate.
- a top cover was obtained in the same manner as in Example 41- (2) except that the obtained laminate was used.
- Example 56- (3) Production of Reinforcing Member Similar to Example 56- (1), a copolymerized polyamide resin (“Amilan (registered trademark)” manufactured by Toray Industries, Inc.) A film made of “CM8000” and having a thickness of 50 ⁇ m was laminated to obtain a laminate. A reinforcing member was obtained in the same manner as in Example 41- (3) except that the obtained laminate was used.
- Example 56- (4) Fabrication of casing
- the reinforcing member obtained in Example 56- (3) was superposed on the bottom cover obtained in Example 56- (1) in the joining form, as shown in FIG.
- Using the joining jig 109 it was placed in a press molding apparatus set so that the surface temperature of the joining jig 109 was 180 ° C., and heated and pressurized. After 1 minute, the bottom cover 2, the reinforcing member 3, and the joining jig 109 were taken out of the press molding apparatus and cooled. After 5 minutes, the joining jig 109 was removed to obtain an integrated product of the bottom cover 2 and the reinforcing member 3. Thereafter, the top cover 4 was joined using an adhesive in the same manner as in Example 41- (4).
- Table 17 The molding conditions and evaluation results in Example 56 are shown in Table 17 below.
- Example 57 A casing was obtained in the same manner as in Examples 56- (1) to (4) except that the materials listed in Table 56 were used. The molding conditions and evaluation results in Example 57 are shown in Table 18 below.
- Example 58 A casing was obtained in the same manner as in Example 57 except that the reinforcing member obtained in the same manner as in Example 43 was used.
- the molding conditions and evaluation results in Example 58 are shown in Table 18 below.
- Example 59 A bottom cover and a top cover were obtained in the same manner as in Example 43 except that the hot platen temperature was 200 ° C. Further, a reinforcing member was obtained in the same manner as in Example 57. A casing was obtained in the same manner as in Example 56 except that each member obtained was used. The molding conditions and evaluation results in Example 59 are shown in Table 18 below.
- Example 60 A bottom cover and a top cover were obtained in the same manner as in Example 43. Further, a reinforcing member was obtained in the same manner as in Example 57. A casing was obtained in the same manner as in Example 56 except that each member obtained was used. The molding conditions and evaluation results in Example 60 are shown in Table 18 below.
- Example 61 to 63 Each member was obtained in the same manner as in Example 60 except that the dimensions shown in Table 19 were used. Using the obtained member, a housing was obtained in the same manner as in Example 56. The molding conditions and evaluation results in Examples 61 to 63 are shown in Table 19 below.
- Reference Example 21 A bottom cover and a reinforcing member were obtained in the same manner as in Example 60 except that the dimensions described in Table 19 were used. An electronic component was placed in the hollow structure S1 formed by the bottom cover and the reinforcing member, and the joint was joined by an ultrasonic welder in the same manner as in Example 60. In addition, a liquid crystal display was prepared as a top cover and joined to the bottom cover with a double-sided tape. The molding conditions and evaluation results in Reference Example 21 are shown in Table 19 below.
- Comparative Example 21 A bottom cover and a top cover were obtained in the same manner as in Example 41. Further, a reinforcing member was obtained in the same manner as in Example 44. A casing was obtained in the same manner as in Example 41- (1) to (4) except that each member obtained was used. The molding conditions and evaluation results in Comparative Example 21 are shown in Table 20 below.
- the bottom cover has electromagnetic wave permeability, which is preferable from the viewpoint of enabling radio wave communication as well as high torsional rigidity. It was confirmed that the example using only the resin material exhibited torsional rigidity although the flexural rigidity was inferior.
- Comparative Example 21 exhibited torsional rigidity and deflection rigidity, but the reinforcing member and the bottom cover peeled off after the thermal cycle test. Such a casing can be used only in a limited environment and does not satisfy the requirements of the market.
- a housing capable of improving torsional rigidity and flexural rigidity while realizing a reduction in thickness and weight. Further, according to the present invention, it is possible to provide a housing capable of improving torsional rigidity while realizing reduction in thickness and weight and improvement in portability. Further, according to the present invention, it is possible to provide a housing that has high torsional rigidity and can improve dimensional stability.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
(1)ねじり剛性試験
図8(a)に示すように筐体1の1辺をコの字型の固定治具100で固定し、固定した1辺に対向するもう一方の辺を支持治具101で保持する形で試験機に固定した後、図8(b)に示すように角度θの変化速度を1°/minとして50Nの荷重を付与した時の筐体1の変位量を測定し、測定値を筐体のねじり剛性値とした。
図9に示すように、補強部材が接合された底面カバー2または天面カバー4側から荷重Fを付与できるように筐体を試験機に設置した。試験機として“インストロン”(登録商標)万能試験機4201型(インストロン社製)を用いた。直径20mmの圧子102を用いて筐体1の中心位置をクロスヘッド速度1.0mm/minで押し、100Nの荷重を付与したときの底面カバー2または天面カバー4のたわみ量を測定し、測定値をたわみ剛性値とした。
ASTM D-790(1997)の規格に準拠し、補強部材3、底面カバー2、および天面カバー4に用いる材料の曲げ弾性率を評価した。実施例または比較例により得られた各部材からそれぞれ、幅25±0.2mm、厚みDとスパンLの関係がL/D=16となるように、長さをスパンL+20±1mmの曲げ試験片を、任意の方向を0°方向とした場合に、0°、+45°、-45°、90°方向の4方向について切り出して試験片を作製した。それぞれの方向について測定回数nは5回とし、全ての測定値(n=20)の平均値を曲げ弾性率とした。試験機として“インストロン”(登録商標)万能試験機4201型(インストロン社製)を用い、3点曲げ試験冶具(圧子直径10mm、支点直径10mm)を用いて支持スパンを試験片厚みの16倍に設定し、曲げ弾性率を測定した。試験片の水分率0.1質量%以下、雰囲気温度23℃、および湿度50質量%の条件下において試験を行った。
JIS K6849(1994)に規定される「接着剤の引張接着強さ試験方法」に基づいて補強部材の引き剥がし荷重を評価した。本試験における試験片は、実施例または比較例で得られる筐体を用いた。この時、補強部材の引き剥がし強度を測定するために、補強部材が接合されていない天面カバーまたは底面カバーがない状態(接合される前)で評価を行った。具体的には、図10に示すように筐体1の底面カバー2または天面カバー4を固定治具103で固定し、補強部材3を引張治具104で固定した。そして、各部材を固定した状態のまま引張荷重Fを付与し、補強部材3が剥がれるまたは引張治具104が補強部材3から外れるまで評価を行った。この時の接着面積は、接合前の補強部材3の接合面の幅や長さを測定して算出した。接合が部分的になされている場合は、それらの面積を測定し、合算して接合面積とした。得られた引張荷重値と接合面積から補強部材3の引き剥がし荷重を算出した。また、200℃における補強部材3の引き剥がし荷重は、筐体1を固定する治具ごと恒温槽内に設置し、恒温槽内の雰囲気温度を200℃まで昇温した。昇温後、10分間その状態を保持した後、補強部材3の引き剥がし荷重試験と同様に引張荷重を付与し、評価を行った。
評価に用いた材料を以下に示す。
東レ(株)製“トレカ”プリプレグP3252S-12を材料1として準備した。材料1の特性は以下の表1に示す。
スーパーレジン工業(株)製SCF183 EP-BL3を材料2として準備した。材料2の特性は以下の表1に示す。
アルミニウム合金A5052を材料3として準備した。材料3の特性は以下の表1に示す。
マグネシウム合金AZ31を材料4として準備した。材料4の特性は以下の表1に示す。
ポリアミド6樹脂(東レ(株)製“アミラン”(登録商標)CM1021T)90質量%と、ポリアミド6/66/610からなる3元共重合ポリアミド樹脂(東レ(株)製“アミラン”(登録商標)CM4000)10質量%とからなるマスターバッチを用いて、目付124g/m2の熱可塑性樹脂フィルムを作製し、材料5として準備した。材料5の特性は以下の表1に示す。
実施例1-(1):底面カバーの作製
材料1から所定の大きさを有するシートを7枚切り出した。このうち4枚は、プリプレグの繊維方向が縦方向(図1でいうx方向)と平行となるようにしてカットし、残りの3枚は繊維方向が横方向(図1でいうy方向)と平行となるようにした。本実施例においては、横方向(y方向)を0°とし、図11に示すように、繊維方向が90°のプリプレグシート105aと繊維方向が0°のプリプレグシート105bとの対称積層となるように7枚のプリプレグシートからなる積層体を得た。
得られる成形品の形状が平滑となる金型を用いること以外は、実施例1-(1)と同様にして成形品を得た。得られた成形品の寸法が所望の大きさとなるようにトリミングを行い、天面カバーを得た。
図13に示すような金型106を用いること以外は、実施例1-(1)と同様にして成形品を得た。得られた成形品の接合面が所望の幅となるようにトリミングを行い、補強部材を得た。
実施例1-(1)~(3)で得た各部材を図14に示すように接着剤108を用いて接合した。実施例1における成形条件および評価結果は以下の表2に示す。
表2に記載の寸法の底面カバーを成形して用いること以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例2における成形条件および評価結果は以下の表2に示す。
底面カバーとして、表2に記載の材料を用い、熱盤温度220℃、成形圧力を10MPaとすること以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例3における成形条件および評価結果は以下の表2に示す。
底面カバーとして、表2に記載の材料を用い、熱盤温度200℃、成形圧力を10MPaとすること以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例4における成形条件および評価結果は以下の表2に示す。
表3に記載の材料の底面カバーを成形して用いること以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例5における成形条件および評価結果は以下の表3に示す。
表3に記載の材料の補強部材を成形して用いること以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例6における成形条件および評価結果は以下の表3に示す。
別の補強部材として、材料1を厚み3mmとなるように0°のプリプレグシートと90°のプリプレグシートを交互に対称積層となるように25枚積層した。実施例1-(1)と同様にしてプレス成形装置で加熱・加圧を行い、成形品を得た。得られた成形品を幅7.2mmとなるように加工を行い、表3に記載の寸法となる別の補強部材を得た。得られた別の補強部材を図7に示すように配置して接着剤で接合し、その他は実施例1-(1)~(4)と同様にして、筐体を得た。実施例7における成形条件および評価結果は以下の表3に示す。
表3に記載の寸法の補強部材を成形して用いること以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例8における成形条件および評価結果は以下の表3に示す。
実施例1-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例1-(1)~(4)と同様にして、筐体を得た。実施例9における成形条件および評価結果は以下の表4に示す。
実施例10-(1):底面カバーの作製
補強部材との接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例1-(1)と同様にして、底面カバーを得た。
実施例10-(1)と同様に底面カバーとの接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例1-(2)と同様にして、天面カバーを得た。
実施例10-(1)と同様に底面カバーとの接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例1-(3)同様にして、補強部材を得た。
実施例10-(1)で得た底面カバーに実施例10-(3)で得た補強部材を接合形態に重ね合わせ、図15に示すような接合用治具109を用い、接合用治具109の表面温度が180℃となるように設定したプレス成形装置の中に配置して加熱・加圧した。1分後、底面カバー2、補強部材3、および接合用治具109をプレス成形装置から取り出し冷却した。5分後、接合用治具109を取り外して底面カバー2と補強部材3の一体化品を得た。その後、実施例1-(4)と同様にして、筐体を得た。実施例10における成形条件および評価結果は以下の表4に示す。
表4に記載の寸法の補強部材を成形して用いること以外は、実施例10と同様にして、筐体を得た。実施例11における成形条件および評価結果は以下の表4に示す。
表4および表5の寸法の補強部材を成形して用いること以外は、実施例10と同様にして、筐体を得た。実施例12~14における成形条件および評価結果は以下の表4および表5に示す。
表5に記載の寸法とすること以外は実施例12と同様にして、底面カバーと補強部材を得た。底面カバーと補強部材によって形成される中空構造S1内に電子部品を配置し、接合部を実施例12と同様に超音波溶着機で接合した。また、天面カバーとして、液晶ディスプレイを準備し、両面テープで底面カバーと接合した。参考例1で得られた電子機器筐体における成形条件および評価結果は以下の表5に示す。
補強部材を用いないこと以外は、実施例1-(1)~(4)と同様にして、筐体を得た。比較例1における成形条件および評価結果は以下の表6に示す。
材料1と材料2を積層した積層体を底面カバーの材料として用いること以外は、比較例1と同様にして、筐体を得た。比較例2における成形条件および評価結果は以下の表6に示す。
比較例3-(1):底面カバーの作製
表6に記載の材料を10枚積層した積層体とプレス成形装置と図12(a)に示すような一対の金型106を用い、一対の金型106内に積層体を配置した。このとき、プレス成形機の熱盤温度が260℃となるように設定しており、成形圧力1.0MPaを保持した状態で加圧した。そして、10分後、プレス成形装置の熱盤に冷却水を流し、冷却を開始した。金型温度が100℃以下となってから、金型106を開放し、成形品を金型106から取り出した。得られた成形品の立ち壁が所望の高さとなるようにトリミングを行い、底面カバーを得た。
表6に記載の寸法となるように用いる金型を変更した以外は、比較例3-(1)と同様にして、補強部材および天面カバーを得た。
得られた底面カバーおよび補強部材を用いること以外は、実施例1-(4)と同様にして天面カバーを接着剤を用いて接合した。比較例3における成形条件および評価結果は以下の表6に示す。
実施例で得られた筐体は、高いねじり剛性およびたわみ剛性を発現することが確認された。中でも、実施例1は非常に高いねじり剛性を発現しつつ、中空構造の割合が高いため、中空構造の内部に電子機器などを多く搭載可能な筐体であった。実施例7は、別の補強部材の効果もあり、ねじり剛性のみならず、さらに高いたわみ剛性も発現することが確認された。実施例9~11は熱溶着により底面カバーと補強部材が接合されているため、高いねじり剛性やたわみ剛性を発現しつつ、加熱により接合部を解体することが可能であるため、修理やリサイクルの観点で好ましい。また、実施例10,11は、補強部材と底面カバーとが直接接合されているため、接着剤やホットメルト樹脂などを用いた場合と比較して重量の増加が少なく、軽量化の観点から好ましい。
(1)ねじり剛性試験
図8(a)に示すように筐体1の1辺をコの字型の固定治具100で固定し、固定した1辺に対向するもう一方の辺を支持治具101で保持する形で試験機に固定した後、図8(b)に示すように角度θの変化速度を1°/minとして10Nの荷重を付与した時の筐体1の変位量を測定し、測定値を筐体のねじり剛性値とした。
図9に示すように、補強部材が接合された底面カバー2または天面カバー4側から荷重Fを付与できるように筐体を試験機に設置した。試験機として“インストロン”(登録商標)万能試験機4201型(インストロン社製)を用いた。直径20mmの圧子102を用いて筐体1の中心位置をクロスヘッド速度1.0mm/minで押し、100Nの荷重を付与したときの底面カバー2または天面カバー4のたわみ量を測定し、測定値をたわみ剛性値とした。
ASTM D-790(1997)の規格に準拠し、補強部材3、底面カバー2、および天面カバー4に用いる材料の曲げ弾性率を評価した。実施例または比較例により得られた各部材からそれぞれ、幅25±0.2mm、厚みDとスパンLの関係がL/D=16となるように、長さをスパンL+20±1mmの曲げ試験片を、任意の方向を0°方向とした場合に、0°、+45°、-45°、90°方向の4方向について切り出して試験片を作製した。それぞれの方向について測定回数nは5回とし、全ての測定値(n=20)の平均値を曲げ弾性率とした。試験機として“インストロン”(登録商標)万能試験機4201型(インストロン社製)を用い、3点曲げ試験冶具(圧子直径10mm、支点直径10mm)を用いて支持スパンを試験片厚みの16倍に設定し、曲げ弾性率を測定した。試験片の水分率0.1質量%以下、雰囲気温度23℃、および湿度50質量%の条件下において試験を行った。
JIS K6849(1994)に規定される「接着剤の引張接着強さ試験方法」に基づいて補強部材の引き剥がし荷重を評価した。本試験における試験片は、実施例または比較例で得られる筐体を用いた。この時、補強部材の引き剥がし強度を測定するために、補強部材が接合されていない天面カバーまたは底面カバーがない状態(接合される前)で評価を行った。具体的には、図10に示すように筐体1の底面カバー2または天面カバー4を固定治具103で固定し、補強部材3を引張治具104で固定した。そして、各部材を固定した状態のまま引張荷重Fを付与し、補強部材3が剥がれるまたは引張治具104が補強部材3から外れるまで評価を行った。この時の接着面積は、接合前の補強部材3の接合面の幅や長さを測定して算出した。接合が部分的になされている場合は、それらの面積を測定し、合算して接合面積とした。得られた引張荷重値と接合面積から補強部材3の引き剥がし荷重を算出した。また、200℃における補強部材3の引き剥がし荷重は、筐体1を固定する治具ごと恒温槽内に設置し、恒温槽内の雰囲気温度を200℃まで昇温した。昇温後、10分間その状態を保持した後、補強部材3の引き剥がし荷重試験と同様に引張荷重を付与し、評価を行った。
評価に用いた材料を以下に示す。
東レ(株)製“トレカ”プリプレグP3252S-12を材料11として準備した。材料11の特性は以下の表7に示す。
スーパーレジン工業(株)製SCF183 EP-BL3を材料12として準備した。材料12の特性は以下の表7に示す。
アルミニウム合金A5052を材料13として準備した。材料13の特性は以下の表7に示す。
マグネシウム合金AZ31を材料14として準備した。材料14の特性は以下の表7に示す。
チタン合金Ti-6Al-4Vを材料15として準備した。材料15の特性は以下の表7に示す。
ポリアミド6樹脂(東レ(株)製“アミラン”(登録商標)CM1021T)90質量%と、ポリアミド6/66/610からなる3元共重合ポリアミド樹脂(東レ(株)製 “アミラン”(登録商標)CM4000)10質量%とからなるマスターバッチを用いて、目付124g/m2の熱可塑性樹脂フィルムを作製し、材料16として準備した。材料16の特性は以下の表7に示す。
実施例21-(1):底面カバーの作製
材料11から所定の大きさを有するシートを7枚切り出した。このうち4枚は、プリプレグの繊維方向が縦方向(図1でいうx方向)と平行となるようにしてカットし、残りの3枚は繊維方向が横方向(図1でいうy方向)と平行となるようにした。本実施例においては、横方向(y方向)を0°とし、図11に示すように、繊維方向が90°のプリプレグシート105aと繊維方向が0°のプリプレグシート105bとの対称積層となるように7枚のプリプレグシートからなる積層体を得た。
得られる成形品の形状が平滑となる金型を用いること以外は、実施例21-(1)と同様にして成形品を得た。得られた成形品の寸法が所望の大きさとなるようにトリミングを行い、天面カバーを得た。
図13に示すような金型106を用いること以外は、実施例21-(1)と同様にして成形品を得た。得られた成形品の接合面が所望の幅となるようにトリミングを行い、補強部材を得た。
実施例21-(1)~(3)で得た各部材を図14に示すように接着剤108を用いて接合した。実施例21における成形条件および評価結果は以下の表8に示す。
表8に記載の材料の補強部材を成形して用いること以外は、実施例21-(1)~(4)と同様にして、筐体を得た。実施例22における成形条件および評価結果は以下の表8に示す。
表8に記載の寸法の底面カバーを用いること以外は、実施例22と同様にして、筐体を得た。実施例23における成形条件および評価結果は以下の表8に示す。
補強部材として表8に記載の材料を用い、熱盤温度を220℃、成形圧力を10MPaとすること以外は、実施例21-(1)~(4)と同様にして、筐体を得た。実施例24における成形条件および評価結果は以下の表8に示す。
補強部材として表9に記載の材料を用い、熱盤温度を200℃、成形圧力を10MPaとすること以外は、実施例21-(1)~(4)と同様にして、筐体を得た。実施例25における成形条件および評価結果は以下の表9に示す。
補強部材として表9に記載の材料を用い、熱盤温度を240℃、成形圧力を10MPaとすること以外は、実施例21-(1)~(4)と同様にして、筐体を得た。実施例26における成形条件および評価結果は以下の表9に示す。
表9に記載の寸法の補強部材を成形して用いること以外は、実施例21-(1)~(4)と同様にして、筐体を得た。実施例27における成形条件および評価結果は以下の表9に示す。
別の補強部材として、材料11を厚み3mmとなるように0°のプリプレグシートと90°のプリプレグシートを交互に対称積層となるように25枚積層した。実施例21-(1)と同様にしてプレス成形装置で加熱・加圧を行い、成形品を得た。得られた成形品を幅7.2mmとなるように加工を行い、表9に記載の寸法となる別の補強部材を得た。得られた別の補強部材を図7に示すように配置して接着剤で接合し、その他は実施例21-(1)~(4)と同様にして、筐体を得た。実施例28における成形条件および評価結果は以下の表9に示す。
実施例21-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例21-(1)~(4)と同様にして、筐体を得た。実施例29における成形条件および評価結果は以下の表10に示す。
実施例30-(1):底面カバーの作製
補強部材との接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例21-(1)と同様にして、底面カバーを得た。
実施例30-(1)と同様に底面カバーとの接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例21-(2)と同様にして、天面カバーを得た。
実施例30-(1)と同様に底面カバーとの接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例21-(3)と同様にして、補強部材を得た。
実施例30-(1)で得た底面カバーに実施例30-(3)で得た補強部材を接合形態に重ね合わせ、図15に示すような接合用治具109を用い、接合用治具109の表面温度が180℃となるように設定したプレス成形装置の中に配置して加熱・加圧した。1分後、底面カバー2、補強部材3、および接合用治具109をプレス成形装置から取り出し冷却した。5分後、接合用治具109を取り外して底面カバー2と補強部材3の一体化品を得た。その後、実施例21-(1)~(4)と同様にして、筐体を得た。実施例30における成形条件および評価結果は以下の表10に示す。
実施例30と同様に底面カバーおよび天面カバーを作製して用いたこと以外は、実施例24と同様にして材料を得た。実施例30-(4)と同様に各部材を接合して、筐体を得た。実施例31における成形条件および評価結果は以下の表10に示す。
実施例30と同様に底面カバーおよび天面カバー、補強部材を得ること以外は、実施例28と同様にして材料を得た。実施例30-(4)と同様に各部材を接合して、筐体を得た。実施例32における成形条件および評価結果は以下の表10に示す。
表11の寸法の補強部材を成形して用いること以外は、実施例30と同様にして、筐体を得た。実施例33~35における成形条件および評価結果は以下の表11に示す。
表11に記載の寸法とすること以外は実施例32と同様にして、底面カバーと補強部材を得た。底面カバーと補強部材によって形成される中空構造S1内に電子部品を配置し、接合部を実施例30と同様に超音波溶着機で接合した。また、天面カバーとして、液晶ディスプレイを準備し、両面テープで底面カバーと接合した。参考例11で得られた電子機器筐体における成形条件および評価結果は以下の表11に示す。
補強部材を用いないこと以外は、実施例21-(1)~(4)と同様にして、筐体を得た。比較例11における成形条件および評価結果は以下の表12に示す。
材料11と材料12を積層した積層体を底面カバーの材料として用いること以外は、比較例11と同様にして、筐体を得た。比較例12における成形条件および評価結果は以下の表12に示す。
比較例13-(1):底面カバーの作製
表12に記載の材料を10枚積層した積層体とプレス成形装置と図12(a)に示すような一対の金型106を用い、一対の金型106内に積層体を配置した。このとき、プレス成形装置の熱盤温度が260℃となるように設定しており、成形圧力1.0MPaを保持した状態で加圧した。そして、10分後、プレス成形装置の熱盤に冷却水を流し、冷却を開始した。金型温度が100℃以下となってから、金型106を開放し、成形品を金型106から取り出した。得られた成形品の立ち壁が所望の高さとなるようにトリミングを行い、底面カバーを得た。
表12に記載の寸法となるように用いる金型を変更した以外は、比較例13-(1)と同様にして、補強部材および天面カバーを得た。
得られた底面カバーおよび補強部材を用いること以外は、実施例21-(4)と同様にして天面カバーを接着剤を用いて接合した。比較例13における成形条件および評価結果は以下の表12に示す。
実施例で得られた筐体は、高いねじり剛性を発現することが確認された。中でも、実施例21は非常に高いねじり剛性を発現しつつ、中空構造の割合が高いため、中空構造の内部に電子機器などを多く搭載可能な筐体であった。実施例28,32は、別の補強部材の効果もあり、ねじり剛性のみならず、たわみ剛性も発現することが確認された。また、実施例29~32は熱溶着により天面カバーと補強部材が接合されているため、高いねじり剛性やたわみ剛性を発現しつつ、加熱により接合部を解体することが可能であるため、修理やリサイクルの観点で好ましい。また、実施例30~32は、補強部材と底面カバーとが直接接合されているため、接着剤やホットメルト樹脂などを用いた場合と比較して重量の増加が少なく、軽量化の観点から好ましい。
(1)ねじり剛性試験
図8(a)に示すように筐体1の1辺をコの字型の固定治具100で固定し、固定した1辺に対向するもう一方の辺を支持治具101で保持する形で試験機に固定した後、図8(b)に示すように角度θの変化速度を1°/minとして10Nの荷重を付与した時の筐体1の変位量を測定し、測定値を筐体のねじり剛性値とした。
図9に示すように、補強部材が接合された底面カバー2または天面カバー4側から荷重Fを付与できるように筐体を試験機に設置した。試験機として“インストロン”(登録商標)万能試験機4201型(インストロン社製)を用いた。直径20mmの圧子102を用いて筐体1の中心位置をクロスヘッド速度1.0mm/minで押し、100Nの荷重を付与したときの底面カバー2または天面カバー4のたわみ量を測定し、測定値をたわみ剛性値とした。
ASTM D-790(1997)の規格に準拠し、補強部材3、底面カバー2、および天面カバー4に用いる材料の曲げ弾性率を評価した。実施例または比較例により得られた各部材からそれぞれ、幅25±0.2mm、厚みDとスパンLの関係がL/D=16となるように長さをスパンL+20±1mmとした曲げ試験片を、任意の方向を0°方向とした場合に、0°、+45°、-45°、90°方向の4方向について切り出して試験片を作製した。それぞれの方向について測定回数nは5回とし、全ての測定値(n=20)の平均値を曲げ弾性率とした。試験機として“インストロン”(登録商標)万能試験機4201型(インストロン社製)を用い、3点曲げ試験冶具(圧子直径10mm、支点直径10mm)を用いて支持スパンを試験片厚みの16倍に設定し、曲げ弾性率を測定した。試験片の水分率0.1質量%以下、雰囲気温度23℃、および湿度50質量%の条件下において試験を行った。
JIS K6849(1994)に規定される「接着剤の引張接着強さ試験方法」に基づいて補強部材の引き剥がし荷重を評価した。本試験における試験片は、実施例または比較例で得られる筐体を用いた。この時、補強部材の引き剥がし強度を測定するために、補強部材が接合されていない天面カバーまたは底面カバーがない状態(接合される前)で評価を行った。具体的には、図10に示すように筐体1の底面カバー2または天面カバー4を固定治具103で固定し、補強部材3を引張治具104で固定した。そして、各部材を固定した状態のまま引張荷重Fを付与し、補強部材3が剥がれるまたは引張治具104が補強部材3から外れるまで評価を行った。この時の接着面積は、接合前の補強部材3の接合面の幅や長さを測定して算出した。接合が部分的になされている場合は、それらの面積を測定し、合算して接合面積とした。得られた引張荷重値と接合面積から補強部材3の引き剥がし荷重を算出した。また、200℃における補強部材3の引き剥がし荷重は、筐体1を固定する治具ごと恒温槽内に設置し、恒温槽内の雰囲気温度を200℃まで昇温した。昇温後、10分間その状態を保持した後、補強部材3の引き剥がし荷重試験と同様に引張荷重を付与し、評価を行った。
JIS K7197(1991)に規定される「プラスチックの熱機械分析による線膨張率試験方法」を参考にして、各部材の線膨張係数を評価した。本評価における試験片は、実施例または比較例で得られる各部材を用いた。この時、厚みは各部材の厚みとし、一辺の長さが5mmとなるように加工を行って、試験片を作製した。測定数はn=5とし、平均値を各部材の線膨張係数とした。
得られた筐体を庫内の雰囲気温度を制御可能な試験機に入れ、プログラム運転を行った。プログラム運転の条件は、最低温度を-25℃、最高温度を85℃とし、各温度に到達してから10分間その温度を保持し、その後、1℃/分の温度変化となるようにした。この最低温度から最高温度、最高温度から最低温度に到達する周期を1サイクルとして、10サイクル行った後、筐体に剥離や反りが生じていないか確認を行った。試験前と比較して変化がない場合を○、剥離や反りが生じた場合を×とした。
評価に用いた材料を以下に示す。
東レ(株)製“トレカ”プリプレグP3252S-12を材料21として準備した。材料21の特性は以下の表13に示す。
スーパーレジン工業(株)製SCF183 EP-BL3を材料22として準備した。材料22の特性は以下の表13に示す。
アルミニウム合金A5052を材料23として準備した。材料23の特性は以下の表13に示す。
マグネシウム合金AZ31を材料24として準備した。材料24の特性は以下の表13に示す。
ポリアミド6樹脂(東レ(株)製“アミラン”(登録商標)CM1021T)90質量%と、ポリアミド6/66/610からなる3元共重合ポリアミド樹脂(東レ(株)製 “アミラン”(登録商標)CM4000)10質量%とからなるマスターバッチを用いて、目付124g/m2の熱可塑性樹脂フィルムを作製し、材料25として準備した。材料25の特性は以下の表13に示す。
ポリカーボネート樹脂(三菱エンジニアリングプラスチック(株)製“ユーピロン”(登録商標)H-4000)の樹脂ペレットを準備した。成形前に庫内温度を120℃に設定した熱風循環式乾燥機で5時間乾燥させた。材料26の特性は以下の表13に示す。
実施例41-(1):底面カバーの作製
材料21から所定の大きさを有するシートを7枚切り出した。このうち4枚は、プリプレグの繊維方向が縦方向(図1でいうx方向)と平行となるようにしてカットし、残りの3枚は繊維方向が横方向(図1でいうy方向)と平行となるようにした。本実施例においては、横方向(y方向)を0°とし、図11に示すように、繊維方向が90°のプリプレグシート105aと繊維方向が0°のプリプレグシート105bとの対称積層となるように7枚のプリプレグシートからなる積層体を得た。
得られる成形品の形状が平滑となる金型を用いること以外は、実施例41-(1)と同様にして成形品を得た。得られた成形品の寸法が所望の大きさとなるようにトリミングを行い、天面カバーを得た。
図13に示すような金型106を用いること以外は、実施例41-(1)と同様にして成形品を得た。得られた成形品の接合面が所望の幅となるようにトリミングを行い、補強部材を得た。
実施例41-(1)~(3)で得た各部材を図14に示すように接着剤108を用いて接合した。実施例41における成形条件および評価結果は以下の表14に示す。
表14に記載の材料を用いること以外は、実施例41-(1)~(4)と同様にして、筐体を得た。実施例42における成形条件および評価結果は以下の表14に示す。
表14に記載の材料を用い、熱盤温℃を220℃、成形圧力を10MPaとすること以外は、実施例41-(1)~(4)と同様にして、筐体を得た。実施例43における成形条件および評価結果は以下の表14に示す。
表14に記載の材料を射出成形機を用いて、シリンダ温度260℃、金型温度80℃となるように設定して射出成形を行い、各部材を得た。得られた部材を用い、実施例41-(4)と同様にして、筐体を得た。実施例44における成形条件および評価結果は以下の表14に示す。
実施例43と同様にして底面カバーおよび天面カバーを作製し、実施例44と同様にして補強部材を作製した。得られた部材を用い、実施例41-(4)と同様にして、筐体を得た。実施例45における成形条件および評価結果は以下の表15に示す。
実施例43と同様にして底面カバーおよび天面カバーを作製し、実施例42と同様にして補強部材を作製した。得られた部材を用い、実施例41-(4)と同様にして、筐体を得た。実施例46における成形条件および評価結果は以下の表15に示す。
実施例41-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例41-(1)~(4)と同様にして筐体を得た。実施例47における成形条件および評価結果は以下の表15に示す。
実施例42-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例42-(1)~(4)と同様にして筐体を得た。実施例48における成形条件および評価結果は以下の表15に示す。
実施例43-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例43-(1)~(4)と同様にして筐体を得た。実施例49における成形条件および評価結果は以下の表16に示す。
実施例44-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例44-(1)~(4)と同様にして筐体を得た。実施例50における成形条件および評価結果は以下の表16に示す。
実施例45-(1)および(3)と同様にして得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例45-(1)~(4)と同様にして筐体を得た。実施例51における成形条件および評価結果は以下の表16に示す。
実施例44と同様にして底面カバーおよび天面カバーを作製した。表16に記載の材料を射出成形機を用いて、シリンダ温度280℃、金型温度100℃となるように設定して射出成形を行い、補強部材を得た。得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例50-(1)~(4)と同様にして筐体を得た。実施例52における成形条件および評価結果は以下の表16に示す。
実施例46と同様にして、各部材を得た。得られた底面カバーと補強部材を、補強部材の接合部に140℃のホットメルトアプリケーターで溶融させたホットメルト樹脂(セメダイン(株)製HM712)を塗布し、補強部材を重ね合わせ上から錘を乗せ、3分間そのままの状態として接合した。接合の仕方以外は、実施例46-(1)~(4)と同様にして筐体を得た。実施例53における成形条件および評価結果は以下の表17に示す。
別の補強部材として材料25を射出成形機を用いて、シリンダ温度260℃、金型温度80℃となるように設定して射出成形を行い、厚み3mmとなる板状の成形品を得た。得られた成形品を幅7.2mmとなるように加工を行い、表17に記載の寸法となる別の補強部材を得た。得られた別の補強部材を図7に示すように配置して接着剤で接合し、その他は実施例50-(1)~(4)と同様にして、筐体を得た。実施例54における成形条件および評価結果は以下の表17に示す。
実施例50-(1),(2)と同様にして得られた底面カバーおよび補強部材を、超音波溶着法で接合した。接合の仕方以外は、実施例50-(1)~(4)と同様にして筐体を得た。実施例55における成形条件および評価結果は以下の表17に示す。
実施例56-(1):底面カバーの作製
補強部材との接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例41-(1)と同様にして、底面カバーを得た。
実施例56-(1)と同様に底面カバーとの接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例41-(2)と同様にして、天面カバーを得た。
実施例56-(1)と同様に底面カバーとの接合面となる側の面に共重合ポリアミド樹脂(東レ(株)製“アミラン(登録商標)”CM8000)からなる厚み50μmとなるフィルムを積層して積層体を得た。得られた積層体を用いること以外は実施例41-(3)と同様にして、補強部材を得た。
実施例56-(1)で得た底面カバーに実施例56-(3)で得た補強部材を接合形態に重ね合わせ、図15に示すような接合用治具109を用い、接合用治具109の表面温度が180℃となるように設定したプレス成形装置の中に配置して加熱・加圧した。1分後、底面カバー2、補強部材3、および接合用治具109をプレス成形装置から取り出し冷却した。5分後、接合用治具109を取り外して底面カバー2と補強部材3の一体化品を得た。その後、実施例41-(4)と同様にして天面カバー4を接着剤を用いて接合した。実施例56における成形条件および評価結果は以下の表17に示す。
表56に記載の材料を用いること以外は、実施例56-(1)~(4)と同様にして、筐体を得た。実施例57における成形条件および評価結果は以下の表18に示す。
実施例43と同様にして得た補強部材を用いること以外は、実施例57と同様にして、筐体を得た。実施例58における成形条件および評価結果は以下の表18に示す。
熱盤温度を200℃とすること以外は、実施例43と同様にして底面カバーおよび天面カバーを得た。また、実施例57と同様にして補強部材を得た。得られた各部材を用いること以外は、実施例56と同様にして、筐体を得た。実施例59における成形条件および評価結果は以下の表18に示す。
実施例43と同様に底面カバーおよび天面カバーを得た。また、実施例57と同様にして補強部材を得た。得られた各部材を用いること以外は、実施例56と同様にして、筐体を得た。実施例60における成形条件および評価結果は以下の表18に示す。
表19に記載の寸法とすること以外は、実施例60と同様にして、各部材を得た。えら得た部材を用いて、実施例56と同様にして筐体を得た。実施例61~63における成形条件および評価結果は以下の表19に示す。
表19に記載の寸法とすること以外は実施例60と同様にして、底面カバーと補強部材を得た。底面カバーと補強部材によって形成される中空構造S1内に電子部品を配置し、接合部を実施例60と同様に超音波溶着機で接合した。また、天面カバーとして、液晶ディスプレイを準備し、両面テープで底面カバーと接合した。参考例21における成形条件および評価結果は以下の表19に示す。
実施例41と同様にして底面カバーおよび天面カバーを得た。また、実施例44と同様にして補強部材を得た。得られた各部材を用いること以外は、実施例41-(1)~(4)と同様にして、筐体を得た。比較例21における成形条件および評価結果は以下の表20に示す。
実施例で得られた筐体は、熱サイクル試験後も補強部材と底面カバーで剥離や反りは発生しない寸法安定性に優れたものであることを確認した。また、これらの筐体は、高いねじり剛性もあわせもっていることが確認された。中でも、実施例47~63は熱溶着により天面カバーと補強部材が接合されているため、高いねじり剛性やたわみ剛性を発現しつつ、加熱により補強部材を解体することが可能であるため、修理やリサイクルの観点で好ましい。また、実施例56~63は、補強部材と底面カバーとが直接接合されているため、接着剤やホットメルト樹脂などを用いた場合と比較して重量の増加が少なく、軽量化の観点から好ましい。実施例54は、別の補強部材の効果もあり、ねじり剛性のみならず、たわみ剛性も発現することが確認された。
2 底面カバー
3 補強部材
4 天面カバー
5 別の補強部材
21 平面部
22 立ち壁部
31 平面部
32 立ち壁部
33 接合部
Claims (15)
- 天面カバーと、前記天面カバーに向かって立設され、周縁部が前記天面カバーに接合された立ち壁部を有する底面カバーと、前記天面カバーと前記底面カバーとによって区画された空間内に配置された、開口部を有する補強部材と、を備え、前記補強部材が底面カバーに接合されている筐体であって、
前記底面カバーが、厚みが0.1mm以上、0.8mm以下の範囲内にあり、弾性率が20GPa以上、120GPa以下の範囲内にある材料によって形成されていることを特徴とする筐体。 - 天面カバーと、前記天面カバーに向かって立設され、周縁部が前記天面カバーに接合された立ち壁部を有する底面カバーと、前記天面カバーと前記底面カバーとによって区画された空間内に配置された、開口部を有する補強部材と、を備え、前記補強部材が底面カバーに接合されている筐体であって、
前記底面カバーが、強化繊維とマトリックス樹脂からなるプリプレグの積層体を硬化した繊維強化複合材料によって形成されていることを特徴とする筐体。 - 前記補強部材が、厚みが0.3mm以上、0.8mm以下の範囲内にあり、弾性率が20GPa以上、120GPa以下の範囲内にある材料によって形成されていることを特徴とする請求項1または2に記載の筐体。
- 天面カバーと、前記天面カバーに向かって立設され、周縁部が前記天面カバーに接合された立ち壁部を有する底面カバーと、前記天面カバーと前記底面カバーとによって区画された空間内に配置された、開口部を有する補強部材と、を備え、前記補強部材が底面カバーに接合されている筐体であって、
前記補強部材が、厚みが0.3mm以上、0.8mm以下の範囲内にあり、弾性率が20GPa以上、120GPa以下の範囲内にある材料によって形成されていることを特徴とする筐体。 - 天面カバーと、前記天面カバーに向かって立設され、周縁部が前記天面カバーに接合された立ち壁部を有する底面カバーと、前記天面カバーと前記底面カバーとによって区画された空間内に配置された、開口部を有する補強部材と、を備え、前記補強部材が底面カバーに接合されている筐体であって、
前記補強部材が、強化繊維とマトリックス樹脂からなるプリプレグの積層体を硬化した繊維強化複合材料によって形成されていることを特徴とする筐体。 - 前記底面カバーが、厚みが0.1mm以上、0.8mm以下の範囲内にあり、弾性率が20GPa以上、120GPa以下の範囲内にある材料によって形成されていることを特徴とする請求項4または5に記載の筐体。
- 前記補強部材、並びに、該補強部材が接合されている前記天面カバーまたは前記底面カバーが、強化繊維とマトリックス樹脂からなるプリプレグの積層体を硬化した繊維強化複合材料によって形成されていることを特徴とする請求項1~6のうち、いずれか1項に記載の筐体。
- 天面カバーと、前記天面カバーに向かって立設され、周縁部が前記天面カバーに接合された立ち壁部を有する底面カバーと、前記天面カバーと前記底面カバーとによって区画された空間内に配置された、開口部を有する補強部材と、を備え、前記補強部材が底面カバーまたは天面カバーに接合されている筐体であって、
前記補強部材と前記補強部材と接合されている底面カバーまたは天面カバーの線膨張係数に対する前記補強部材の線膨張係数の比が0.1以上、10以下の範囲内にあることを特徴とする筐体。 - 前記補強部材が、前記底面カバーまたは天面カバーに熱溶着によって接合されていることを特徴とする請求項1~8のうち、いずれか1項に記載の筐体。
- 前記補強部材は、23℃における引き剥がし荷重が60N/cm2以上、5000N/cm2以下の範囲内になり、且つ、200℃における引き剥がし荷重が60N/cm2未満の範囲内になるように、前記底面カバーまたは天面カバーに接合されていることを特徴とする請求項1~9のうち、いずれか1項に記載の筐体。
- 前記補強部材と、前記天面カバーまたは底面カバーとが直接接合されていることを特徴とする請求項1~10のうち、いずれか1項に記載の筐体。
- 前記補強部材と接合されている前記底面カバーまたは前記天面カバーの方向への前記補強部材の投影面積が、前記補強部材が接合されている前記底面カバーまたは前記天面カバーの面積の60%以上、95%以下の範囲内にあることを特徴とする請求項1~11のうち、いずれか1項に記載の筐体。
- 前記補強部材を前記底面カバーまたは前記天面カバーに接合することによって形成された中空構造の体積が、前記空間の体積の55%以上、95%以下の範囲内にあることを特徴とする請求項1~12のうち、いずれか1項に記載の筐体。
- 前記補強部材と前記底面カバーまたは前記天面カバーが接合されることによって形成された中空構造において、発熱部材が、前記補強部材の前記中空構造側表面に配設されていることを特徴とする請求項1~13のうち、いずれか1項に記載の筐体。
- 前記補強部材と前記補強部材が接合されている前記底面カバーとの間に形成されている中空構造内において、前記補強部材の内面と前記補強部材が接合されている前記底面カバーとを接続する別の補強部材を備えることを特徴とする請求項1~14のうち、いずれか1項に記載の筐体。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680053896.7A CN108029215B (zh) | 2015-09-18 | 2016-09-06 | 壳体 |
US15/760,333 US10571963B2 (en) | 2015-09-18 | 2016-09-06 | Housing |
KR1020187007639A KR20180056653A (ko) | 2015-09-18 | 2016-09-06 | 하우징 |
EP16846310.7A EP3352540B1 (en) | 2015-09-18 | 2016-09-06 | Housing |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-185985 | 2015-09-18 | ||
JP2015185987A JP6736859B2 (ja) | 2015-09-18 | 2015-09-18 | 電子機器筐体 |
JP2015-185992 | 2015-09-18 | ||
JP2015-185987 | 2015-09-18 | ||
JP2015185985A JP6728606B2 (ja) | 2015-09-18 | 2015-09-18 | 電子機器筐体 |
JP2015185992A JP6728607B2 (ja) | 2015-09-18 | 2015-09-18 | 電子機器筐体 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017047439A1 true WO2017047439A1 (ja) | 2017-03-23 |
Family
ID=58289244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/076116 WO2017047439A1 (ja) | 2015-09-18 | 2016-09-06 | 筐体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10571963B2 (ja) |
EP (1) | EP3352540B1 (ja) |
KR (1) | KR20180056653A (ja) |
CN (1) | CN108029215B (ja) |
TW (1) | TW201717726A (ja) |
WO (1) | WO2017047439A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3625645A4 (en) * | 2017-06-19 | 2020-06-03 | Samsung Electronics Co., Ltd. | ELECTRONIC DEVICE WITH WINDOW |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170217056A1 (en) * | 2016-01-29 | 2017-08-03 | Dell Products L.P. | Carbon Fiber Information Handling System Housing and Process for Manufacture |
CN112187969A (zh) * | 2019-07-05 | 2021-01-05 | 昇印光电(昆山)股份有限公司 | 光学模组 |
CN114449787A (zh) * | 2020-11-06 | 2022-05-06 | 威刚科技股份有限公司 | 壳体结构及使用其的电子产品 |
KR102292964B1 (ko) * | 2020-11-25 | 2021-08-25 | 주식회사 노바텍 | 보호 케이스용 커버 부재 및 이를 포함하는 보호 케이스 |
WO2023126667A1 (en) * | 2021-12-29 | 2023-07-06 | Bosch Car Multimedia Portugal S.A | Cover, enclosure and manufacturing method thereof, for electromagnetic shielding |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003101250A (ja) * | 2001-09-20 | 2003-04-04 | Fujitsu Frontech Ltd | 携帯用電子機器 |
US20080146293A1 (en) * | 2006-12-14 | 2008-06-19 | Samsung Electronics Co., Ltd. | Portable terminal having reinforcement member |
WO2010109957A1 (ja) * | 2009-03-25 | 2010-09-30 | 東レ株式会社 | エポキシ樹脂組成物、プリプレグ、炭素繊維強化複合材料および電子電気部品筐体 |
WO2015119064A1 (ja) * | 2014-02-10 | 2015-08-13 | 新日鉄住金マテリアルズ株式会社 | 熱伝導性複合材及びその製造方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08288681A (ja) | 1995-04-12 | 1996-11-01 | Hitachi Ltd | 電子機器用筐体およびその製造方法 |
JPH10150280A (ja) | 1996-11-20 | 1998-06-02 | Kansei Corp | 電気機器のキャビネット構造 |
JP2007305041A (ja) | 2006-05-15 | 2007-11-22 | Sony Corp | 情報処理装置 |
US7851204B2 (en) * | 2006-06-09 | 2010-12-14 | Pall Microreactor Technologies, Inc. | Closure for milliliter scale bioreactor |
JP2009218444A (ja) | 2008-03-11 | 2009-09-24 | Sumitomo Electric Ind Ltd | 超電導装置 |
JP2011022848A (ja) | 2009-07-16 | 2011-02-03 | Panasonic Corp | 電子機器 |
JP4995873B2 (ja) * | 2009-08-05 | 2012-08-08 | 株式会社東芝 | 半導体装置及び電源回路 |
CN102404952A (zh) | 2010-09-16 | 2012-04-04 | 富泰华工业(深圳)有限公司 | 电子装置及该电子装置的金属壳体的成型方法 |
MX358463B (es) * | 2011-08-25 | 2018-08-22 | Merck Patent Gmbh | Pirano[3,2-d][1,3]tiazol como inhibidores de glicosidasa. |
JP2013074043A (ja) | 2011-09-27 | 2013-04-22 | Nec Casio Mobile Communications Ltd | 電子機器、及び、補強部材 |
US10265928B2 (en) | 2012-07-18 | 2019-04-23 | Mitsubishi Chemical Corporation | Fiber reinforced composite material structure, composite material molded body using the same, and manufacturing method therefor |
PT2939818T (pt) | 2012-12-26 | 2019-05-08 | Toray Industries | Produto moldado tendo uma estrutura oca e processo para o produzir |
JP6728606B2 (ja) | 2015-09-18 | 2020-07-22 | 東レ株式会社 | 電子機器筐体 |
JP6728607B2 (ja) | 2015-09-18 | 2020-07-22 | 東レ株式会社 | 電子機器筐体 |
-
2016
- 2016-09-06 EP EP16846310.7A patent/EP3352540B1/en active Active
- 2016-09-06 CN CN201680053896.7A patent/CN108029215B/zh active Active
- 2016-09-06 KR KR1020187007639A patent/KR20180056653A/ko unknown
- 2016-09-06 WO PCT/JP2016/076116 patent/WO2017047439A1/ja active Application Filing
- 2016-09-06 US US15/760,333 patent/US10571963B2/en active Active
- 2016-09-13 TW TW105129692A patent/TW201717726A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003101250A (ja) * | 2001-09-20 | 2003-04-04 | Fujitsu Frontech Ltd | 携帯用電子機器 |
US20080146293A1 (en) * | 2006-12-14 | 2008-06-19 | Samsung Electronics Co., Ltd. | Portable terminal having reinforcement member |
WO2010109957A1 (ja) * | 2009-03-25 | 2010-09-30 | 東レ株式会社 | エポキシ樹脂組成物、プリプレグ、炭素繊維強化複合材料および電子電気部品筐体 |
WO2015119064A1 (ja) * | 2014-02-10 | 2015-08-13 | 新日鉄住金マテリアルズ株式会社 | 熱伝導性複合材及びその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3625645A4 (en) * | 2017-06-19 | 2020-06-03 | Samsung Electronics Co., Ltd. | ELECTRONIC DEVICE WITH WINDOW |
US10993341B2 (en) | 2017-06-19 | 2021-04-27 | Samsung Electronics Co., Ltd. | Electronic device including window |
Also Published As
Publication number | Publication date |
---|---|
TW201717726A (zh) | 2017-05-16 |
CN108029215A (zh) | 2018-05-11 |
US10571963B2 (en) | 2020-02-25 |
EP3352540A1 (en) | 2018-07-25 |
EP3352540A4 (en) | 2019-04-24 |
EP3352540B1 (en) | 2021-03-17 |
US20180299925A1 (en) | 2018-10-18 |
CN108029215B (zh) | 2020-10-27 |
KR20180056653A (ko) | 2018-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2017047443A1 (ja) | 筐体 | |
WO2017047439A1 (ja) | 筐体 | |
CN108029222B (zh) | 电子设备壳体 | |
WO2017047442A1 (ja) | 筐体 | |
JP6168242B1 (ja) | 筐体 | |
JP6728607B2 (ja) | 電子機器筐体 | |
JP6736859B2 (ja) | 電子機器筐体 | |
JP6728606B2 (ja) | 電子機器筐体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16846310 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15760333 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20187007639 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2016846310 Country of ref document: EP |