JP2018109218A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce corrosion caused by contact between dissimilar metals in antenna structure.SOLUTION: Electronic equipment includes: an antenna member which forms a part of a housing and is formed of a first metal material; a substrate; a feeding point which is provided in the substrate and is formed of a second metal material; and a first coupling member which couples the antenna member and the substrate to each other and has a first portion in contact with the antenna member and a second portion in contact with the feeding point, wherein each of metal material of the first portion and the second portion satisfies for ionization tendency on an electrochemical series, (1) a first relationship that the metal material of the first portion is the same as the first metal material, and the metal material of the second portion is between the first metal material and the second metal material, and (2) a second relationship that the metal material of the first portion is between the first metal material and the second metal material, and the metal material of the second portion is the same as the second metal material.SELECTED DRAWING: Figure 3

Description

  The present disclosure relates to an electronic device.

  In a fastening structure using different metals, a technique for preventing corrosion due to contact between different metals is known.

JP 2016-70359 JP 2001-11665

  However, with the conventional techniques as described above, it is difficult to effectively reduce corrosion caused by contact between different metals. For example, when a metal material (base metal material) having a lower natural potential than either of the two different metals is interposed between two different metals, the one having the higher natural potential of the two different metals The difference in the natural potential between the base metal material and the base metal material is larger than the difference in the natural potential between the two dissimilar metals. As a result, corrosion between the metal material having a higher natural potential and the intervening base metal material becomes a problem. In general, the greater the difference in natural potential, the more likely to cause potential difference corrosion or chemical conversion treatment failure associated with local battery formation.

  Thus, in one aspect, the present invention aims to reduce corrosion due to contact between dissimilar metals in the antenna structure.

In one aspect, an antenna member that forms part of the housing and is formed of a first metal material;
A substrate,
A feeding point provided on the substrate and formed of a second metal material different from the first metal material;
A first fastening member for fastening the antenna member and the substrate, the first fastening member transmitting high frequency power from the feeding point to the antenna member or transmitting high frequency power from the antenna member to the feeding point; Including
The electronic device is provided in which the first fastening member includes a portion where an ionization tendency on an electrochemical row is between the first metal material and the second metal material.

  In one aspect, the present invention can reduce corrosion due to contact between dissimilar metals in the antenna structure.

1 is an exploded perspective view of an electronic device according to Example 1. FIG. It is a single item figure of the metal case member by plane view from the Z1 side. It is a single item figure of the metal housing member by plane view from the Z2 side. It is explanatory drawing of the cross-sectional structure which concerns on an antenna member. It is a figure which shows an example of the electrical potential difference of the dissimilar metal which concerns on a some group. It is a figure which shows the electrical potential difference of the dissimilar metal by Example 1 regarding an antenna member. It is explanatory drawing of the cross-sectional structure which concerns on a non-antenna member. It is a figure which shows the electrical potential difference of the dissimilar metal by Example 1 regarding a non-antenna member. 6 is a plan view of a front side of an electronic device according to a second embodiment. FIG. It is a schematic sectional drawing in alignment with XY plane of the outer peripheral part of a metal housing member. It is explanatory drawing of the example of an antenna structure. It is explanatory drawing of the example of another antenna structure. It is explanatory drawing of the example of another antenna structure. It is explanatory drawing of a non-slip | skid function. It is explanatory drawing of a non-slip | skid function. It is a table | surface figure which shows the rubber material and friction coefficient of a nonelectroconductive member. FIG. 10 is an exploded perspective view of an electronic device according to a third embodiment. FIG. 10 is an exploded perspective view of an electronic device according to a third embodiment. It is an enlarged view of the A1 part of FIG. It is a top view of the front side of an electronic device. It is a top view of the back side of an electronic device. It is sectional drawing along line EE of FIG. 19A. FIG. 19B is a cross-sectional view taken along line DD in FIG. 19A. It is sectional drawing along line CC of FIG. 19A. It is sectional drawing along line BB of FIG. 19A. It is an enlarged view of the A2 part of FIG.

  Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

[Example 1]
In the following description of the first embodiment, “potential difference” means “difference in natural potential”.

  FIG. 1 is an exploded perspective view of an electronic apparatus 1 according to the first embodiment. In FIG. 1, an X axis, a Y axis, and a Z axis, which are three orthogonal axes, are defined. Here, the display surface of the LCD (Liquid Crystal Display) glass 12 of the electronic device 1 corresponds to the XY plane, the Z1 side of the Z axis corresponds to the front side of the electronic device 1, and the Z2 side corresponds to the rear (rear) side. . 2A and 2B are single product views of the metal housing member 20, FIG. 2A is a plan view seen from the Z1 side, and FIG. 2B is a plan view seen from the Z2 side.

  The electronic device 1 is a terminal having a communication function, such as a smartphone, a tablet terminal, or a portable game machine.

  The electronic device 1 includes an LCD glass 12, a holder 14 (an example of a ground member), a metal housing member 20 (an example of a housing member), a substrate 30, a battery 40, and a back panel 42.

  The LCD glass 12 integrally includes a touch panel 121. That is, the LCD glass 12 has a multilayer structure including the touch panel 121 layer on the front side. Note that the surface of the touch panel 121 extends in the XY plane. The touch panel 121 may be, for example, an electrostatic type, a pressure sensitive type, or a combination of an electrostatic type and a pressure sensitive type.

  The holder 14 is formed of, for example, a thin sheet metal. In the first embodiment, as an example, the holder 14 is formed of Ni-plated stainless steel (SUS304: nickel-plated steel).

  The holder 14 is provided on the back side of the LCD glass 12 and holds the LCD glass 12. The holder 14 has, for example, a shape that covers the center of the back surface of the LCD glass 12. The holder 14 has a supporting function for protecting (or reinforcing) the LCD glass 12 and a shielding function by being grounded. The shield function of the holder 14 can reduce the influence on the operation of the electronic components on the substrate 30 due to, for example, noise or static electricity.

  The metal housing member 20 is formed of an aluminum alloy (an example of a first metal material) such as a No. 6000 aluminum alloy or a No. 7000 aluminum alloy (super duralumin). In the first embodiment, as an example, the metal casing member 20 is formed of a No. 7000 aluminum alloy whose material rigidity is higher than that of a No. 6000 aluminum alloy. The metal housing member 20 forms an outer peripheral portion of the electronic apparatus 1 and has an opening in the center portion that exposes the holder 14 on the Z1 side in the Z direction.

  The metal housing member 20 is provided with a nonconductive film 50 on a part of the surface region. In FIG. 2A and FIG. 2B, the surface area to which the non-conductive film 50 is applied is indicated by “blank” hatching. The nonconductive film 50 is an alumite film, for example. In FIG. 2A and FIG. 2B, reference numeral 52 is assigned to a region where the nonconductive film 50 is not provided. The nonconductive film 50 is applied to the outer peripheral portion of the metal housing member 20 and is applied around a fastening point P2 described later. The nonconductive film 50 applied to the outer peripheral portion of the metal housing member 20 has a function of improving the designability of the electronic device 1, for example.

  The metal housing member 20 includes a portion that functions as an antenna (hereinafter referred to as “antenna member 21”) and a portion that does not function as an antenna (hereinafter referred to as “non-antenna member 22”). The antenna member 21 and the non-antenna member 22 can be formed at desired locations in the metal housing member 20, respectively. The metal housing member 20 includes a resin portion 26 (see FIGS. 2A and 2B) that electrically insulates between the antenna member 21 and the non-antenna member 22. In the example shown in FIGS. 2A and 2B, the resin portion 26 is provided in the vicinity of the four corners of the metal housing member 20.

  An internal housing portion 29 is coupled to the metal housing member 20. The internal housing part 29 is made of resin. The internal housing portion 29 holds nuts 92 and 94 described later. The metal housing member 20 may be formed integrally with the inner housing portion 29, or may be integrated after being formed separately.

  The antenna function of the antenna member 21 may realize arbitrary communication. For example, the antenna member 21 may be for DTV (digital television), Wi-Fi (Wireless Fidelity), GPS (Global Positioning System), and the like. The antenna member 21 may be used for wireless communication in another predetermined one or more bands.

  The metal housing member 20 is fastened to the substrate 30 at a plurality of fastening points P1 (see FIG. 2A and the like). The metal housing member 20 is fastened to the holder 14 at a plurality of fastening points P2 (see FIG. 2A and the like). In the first embodiment, as an example, the antenna member 21 is provided corresponding to the fastening location P1, and the non-antenna member 22 is provided corresponding to the fastening location P2.

  The substrate 30 is provided with various electronic circuits 32 for realizing various functions of the electronic device 1. The electronic circuit 32 includes, for example, an electronic circuit included in an electronic component in the form of a chip, and a wiring pattern (including a feeding point 36 described later) formed on the substrate 30. The substrate 30 is provided on the back side of the holder 14. The substrate 30 includes a circuit portion (a portion to be grounded) that is electrically connected to the holder 14 via, for example, a contact spring (not shown). The substrate 30 may include two or more substrates such as a main substrate and a sub substrate.

  The back panel 42 forms the back surface of the electronic device 1 and forms the housing of the electronic device 1 together with the metal housing member 20. The above-described holder 14, substrate 30, battery 40, etc. are accommodated in the housing.

  Next, a cross-sectional structure related to the antenna member 21 will be described with reference to FIG. FIG. 3 is an explanatory diagram of a cross-sectional structure related to the antenna member 21, and is a cross-sectional view of the antenna member 21 of the electronic device 1. FIG. 3 corresponds to a cross-sectional view of the electronic apparatus 1 with a cut surface corresponding to the line AA shown in FIG. 2A, and a detailed portion is a schematic cross-sectional view for explanation.

  As shown in FIG. 3, the antenna member 21 has a first surface region S1 to which the nonconductive film 50 is applied and a second surface region S2 to which the nonconductive film 50 is not applied. The first surface region S1 includes a surface region exposed to the outside (that is, a surface region serving as a design surface). The second surface region S2 includes a contact region with a nut 92 described later.

  A feeding point 36 is formed on the substrate 30. As shown in FIG. 3, the feeding point 36 is formed on the Z2 side surface of the substrate 30. A conductive pattern 31 that forms a feeding point 36 is formed on the substrate 30. In the first embodiment, as an example, the conductor pattern 31 is formed of copper (an example of a second metal material).

  As shown in FIG. 3, the substrate 30 is fastened to the antenna member 21 by a fastening member 90 (an example of a first fastening member). That is, the fastening member 90 fastens (joins together) the antenna member 21 and the substrate 30. The fastening member 90 includes a screw 91 (an example of the second part) and a nut 92 (an example of the part and the first part).

  The screw 91 is in contact with the feeding point 36 on the substrate 30. The screw refers to a member having a male screw portion and is a concept including a bolt. In the first embodiment, the screw 91 comes into contact with the feeding point 36 at the head seating surface. Thereby, the screw 91 and the feeding point 36 are electrically connected. The metal housing member 20 and the substrate 30 are provided with holes 210 and 39 through which the shafts of the screws 91 pass, respectively.

  The nut 92 is fixed to the inner housing portion 29 inside the antenna member 21. The nut 92 may be in the form of a weld nut or boss. The nut 92 contacts the antenna member 21 (see Q1 in FIG. 3). This contact is strengthened by the fastening force F1 at the time of fastening. Thereby, the nut 92 and the antenna member 21 are electrically connected.

  Therefore, the conduction path from the antenna member 21 to the feeding point 36 includes the antenna member 21 to the nut 92 (see arrow R1 in FIG. 3), the nut 92 to the screw 91 (see arrow R2 in FIG. 3), and the screw 91 to the feeding point. 36 (see arrow R3 in FIG. 3). Therefore, during operation of the antenna member 21, the fastening member 90 transmits high frequency power from the feeding point 36 to the antenna member 21 or transmits high frequency power from the antenna member 21 to the feeding point 36. For example, when the antenna member 21 is for a DTV broadcast receiving antenna, the fastening member 90 transmits high-frequency power (a signal related to the received radio wave) from the antenna member 21 to the feeding point 36. When the antenna member 21 is for Wi-Fi, the fastening member 90 transmits high-frequency power from the antenna member 21 to the feeding point 36 at the time of reception, and high-frequency power from the feeding point 36 to the antenna member 21 at the time of transmission. Transmit power.

  The nut 92 is formed of a metal material whose ionization tendency on the electrochemical row is between the metal material of the antenna member 21 and the metal material of the feeding point 36. The ionization tendency on the electrochemical column is related to the natural potential, and the higher the ionization tendency, the easier the corrosion and the higher the natural potential. Examples of metal materials having a high ionization tendency include aluminum, zinc, and magnesium. On the other hand, the lower the ionization tendency, the harder it is to corrode and the lower the natural potential. Examples of metal materials having a low ionization tendency include gold and silver.

  In Example 1, as described above, the metal material of the antenna member 21 is No. 7000 aluminum alloy, and the metal material of the feeding point 36 is copper. In the first embodiment, as an example, the nut 92 is formed of duralumin.

  The screw 91 is formed of a metal material having an ionization tendency on the electrochemical column that is the same as the metal material of the feeding point 36 or a metal material between the metal material of the antenna member 21 and the metal material of the feeding point 36. The In the first embodiment, as an example, the screw 91 is formed of the same copper as the metal material of the feeding point 36.

  By the way, although No. 7000 aluminum alloy has high material rigidity, it is more easily corroded than No. 6000 aluminum alloy. Specifically, the 7000 aluminum alloy has zinc and zinc-magnesium alloy added to the 6000 aluminum alloy, but these substances easily cause corrosion of the 7000 aluminum alloy. It is important how to reduce the corrosion of the aluminum alloy. In addition, the No. 7000 aluminum alloy has a higher natural potential than the No. 6000 aluminum alloy due to the addition of zinc and zinc-magnesium alloy. For this reason, the No. 7000 aluminum alloy has a higher potential difference when contacting different metals than the No. 6000 aluminum alloy, and is more easily corroded.

In general, from the viewpoint of preventing corrosion, the potential difference between different metals is required to be 0.6 V or less, and a method for performing surface treatment as a technique for reducing the potential difference between different metals to 0.6 V or less. was there. However, the surface treatment causes an increase in the electric resistance value, and it is difficult to easily solve the problem by the surface treatment. For example, the electrical resistance values of typical materials are as follows. The following shows the resistance value μΩ · cm at 0 ° C. From the following, it can be seen that chromium has high electric resistance and is difficult to use in surface treatment or the like.
・ Gold 2.05
・ Silver 1.47
・ Chrome 12.7
・ Copper 1.55
Nickel 6.2
・ Duralumin 3.4
In this regard, according to the first embodiment, as described above, the conduction path from the antenna member 21 to the feeding point 36 has the antenna member 21 to the nut 92 (see arrow R1 in FIG. 3) and the nut 92 to the screw 91 (see FIG. 3 and the feed point 36 (see arrow R3 in FIG. 3). At this time, the potential difference between different metals is as shown in FIG. 5 when the table of FIG. 4 is used. FIG. 4 is a table of electrochemical potentials, and shows an example of potential differences between different metals related to a plurality of sets. The electrochemical potential as shown in FIG. 4 is data obtained under the following conditions. In FIG. 4, a combination of 0.6 V or less is shown below the line L1. In FIG. 4, the materials are shown in the order of the natural potential in such a direction that the natural potential decreases toward gold and platinum.
Measurement conditions: 5% NaCl aqueous solution (adjusted to ph3 with acetic acid)
Measuring liquid area ... 100mm2
Measurement time ... 24h
Reference electrode—saturated calomel electrode Note that the data in FIG. 4 for the 7000 aluminum alloy is an example, and other 7000 aluminum alloy materials with similar data may be used.

  Here, as can be seen from FIG. 4, for example, in the comparative example in which the antenna member 21 and the feeding point 36 are in direct contact, the potential difference between the antenna member 21 and the feeding point 36 is 0.8 V (in FIG. 4). # 3), exceeding 0.6V.

  On the other hand, according to the first embodiment, as shown in FIG. 5, the potential difference between the antenna member 21 and the nut 92 is 0.45 V, and the potential difference between the nut 92 and the screw 91 is 0. The voltage between the screw 91 and the feeding point 36 is 0 V, and all are 0.6 V or less. Therefore, according to the first embodiment, corrosion caused by contact between different metals can be reduced while using No. 7000 aluminum alloy for the metal casing member 20 (antenna member 21). That is, according to the first embodiment, the potential difference between the antenna member 21 and the feeding point 36 is reduced stepwise by passing through the fastening member 90 (nut 92). Can be reduced to 0.6 V or less to reduce corrosion.

  In the first embodiment, as a preferred example, the metal casing member 20 (antenna member 21) is formed of a number 7000 aluminum alloy, but the metal casing member 20 is formed of other materials such as a number 6000 aluminum alloy. May be formed. Also in this case, corrosion can be reduced by reducing the potential difference between the different metals in contact with each other.

  In Example 1, the material of the antenna member 21 is No. 7000 aluminum alloy, the feeding point 36 is copper, the material of the nut 92 is duralumin, and the material of the screw 91 is copper. Not limited to this. For example, it may be appropriately realized by a combination below the line L1 shown in FIG. Further, combinations other than those shown in FIG. 4 may be used. However, as described above, preferably, a material containing chromium is not used from the viewpoint of electrical resistance.

  In the first embodiment, the nut 92 is formed of a metal material whose ionization tendency on the electrochemical column is between the material of the antenna member 21 and the material of the feeding point 36, but is not limited thereto. For example, the nut 92 may be formed of the same material as the metal material of the antenna member 21 in the ionization tendency on the electrochemical row. In this case, the screw 91 is formed of a metal material whose ionization tendency on the electrochemical column is between the metal material of the antenna member 21 and the metal material of the feeding point 36.

  Next, a cross-sectional structure related to the non-antenna member 22 will be described with reference to FIG. FIG. 6 is an explanatory diagram of a cross-sectional structure related to the non-antenna member 22, and is a cross-sectional view of the non-antenna member 22 of the electronic device 1. FIG. 6 corresponds to a cross-sectional view of the electronic apparatus 1 taken along a cross-section corresponding to the line BB shown in FIG. 2A, and a detailed portion is a schematic cross-sectional view for explanation.

  As shown in FIG. 6, the non-antenna member 22 includes a third surface region S3 to which the nonconductive film 50 is applied and a fourth surface region S4 to which the nonconductive film 50 is not applied. The third surface region S3 includes a surface region exposed to the outside (that is, a surface region serving as a design surface) and a contact region with the holder 14 (see Q3). The non-antenna member 22 is prevented from being directly electrically connected to the holder 14 because the non-conductive film 50 is provided in the contact area with the holder 14. The fourth surface region S4 includes a contact region (see Q2) with a nut 94 described later. As a method for forming the nonconductive film 50, the nonconductive film 50 is applied to the entire non-antenna member 22, and then the nonconductive film 50 in the fourth surface region S4 is removed by laser irradiation or the like. It may be.

  The holder 14 is made of a metal material. In the first embodiment, as an example, the holder 14 is formed of Ni-plated stainless steel (an example of a third metal material) as described above. As shown in FIG. 6, the holder 14 is fastened to the non-antenna member 22 by a fastening member 90 </ b> A (an example of a second fastening member). That is, the fastening member 90A fastens (co-fastens) the non-antenna member 22 and the holder 14. The fastening member 90A includes a screw 93 (an example of the fourth part) and a nut 94 (an example of the part and the third position).

  The screw 93 is in contact with the holder 14. In the first embodiment, the screw 93 comes into contact with the holder 14 at the head seating surface. Thereby, the screw 93 and the holder 14 are electrically connected. The metal housing member 20 and the holder 14 are provided with holes 212 and 141 through which the shafts of the screws 93 pass, respectively.

  The nut 94 is fixed to the inner housing portion 29 inside the non-antenna member 22. The nut 94 contacts the non-antenna member 22 (see Q2 in FIG. 6). This contact is strengthened by the fastening force F2 at the time of fastening. Thereby, the nut 94 and the non-antenna member 22 are electrically connected.

  Accordingly, the conduction paths from the non-antenna member 22 to the holder 14 are the non-antenna member 22 to the nut 94 (see arrow R4 in FIG. 6), the nut 94 to the screw 93 (see arrow R5 in FIG. 6), and the screw 93 to the holder. 14 (see arrow R6 in FIG. 6). Therefore, the fastening member 90 </ b> A grounds the non-antenna member 22 through the holder 14.

  The nut 94 is formed of a metal material whose ionization tendency on the electrochemical row is between the metal material of the non-antenna member 22 and the metal material of the holder 14. In Example 1, as described above, the metal material of the non-antenna member 22 is No. 7000 aluminum alloy, and the metal of the holder 14 is nickel-plated steel. In the first embodiment, as an example, the nut 94 is formed of duralumin.

  The screw 93 is formed of a metal material having an ionization tendency on the electrochemical column that is the same as the metal material of the holder 14 or a metal material between the metal material of the non-antenna member 22 and the metal material of the holder 14. . In the first embodiment, as an example, the screw 93 is formed of copper having an ionization tendency on the electrochemical column between the number 7000 aluminum alloy and nickel-plated steel.

  According to the first embodiment, as described above, the conduction path from the non-antenna member 22 to the holder 14 is from the non-antenna member 22 to the nut 94 (see arrow R4 in FIG. 6) and from the nut 94 to the screw 93 (in FIG. 6). The holder 14 (see arrow R6 in FIG. 6) is formed from the screw 93 and the arrow 93. At this time, the potential difference between different metals is as shown in FIG. 7 using the table of FIG.

  Here, as can be seen from FIG. 4, for example, in the comparative example in which the non-antenna member 22 and the holder 14 are in direct contact, the potential difference between the non-antenna member 22 and the holder 14 is 0.9 V (in FIG. 4). # 4), exceeding 0.6V.

  On the other hand, according to the first embodiment, as shown in FIG. 7, the potential difference between the non-antenna member 22 and the nut 94 is 0.45 V, and the potential difference between the nut 94 and the screw 93 is 0. .35V, and between the screw 93 and the holder 14 is 0.1V, and all are 0.6V or less. Therefore, according to the first embodiment, corrosion caused by contact between different metals can be reduced while using No. 7000 aluminum alloy for the metal housing member 20 (non-antenna member 22). That is, according to the first embodiment, the potential difference between the non-antenna member 22 and the holder 14 is reduced stepwise by passing the fastening member 90A. Corrosion can be reduced as follows.

  In the first embodiment, as a preferred example, the metal casing member 20 (non-antenna member 22) is formed of a No. 7000 aluminum alloy, but the metal casing member 20 is not limited to a No. 6000 aluminum alloy. It may be formed of a material. Also in this case, corrosion can be reduced by reducing the potential difference between the different metals in contact with each other.

  In Example 1, the material of the non-antenna member 22 is No. 7000 aluminum alloy, the holder 14 is nickel-plated steel, the material of the nut 94 is duralumin, and the material of the screw 93 is copper. There is, but is not limited to this. For example, it may be appropriately realized by a combination below the line L1 shown in FIG. Further, combinations other than those shown in FIG. 4 may be used. However, as described above, preferably, a material containing chromium is not used from the viewpoint of electrical resistance.

  In the first embodiment, the nut 94 is formed of a metal material whose ionization tendency on the electrochemical row is between the metal material of the non-antenna member 22 and the metal material of the holder 14, but is not limited thereto. For example, the nut 94 may be formed of the same metal material as that of the non-antenna member 22 in the ionization tendency on the electrochemical row. In this case, the screw 93 is formed of a metal material whose ionization tendency on the electrochemical column is between the metal material of the non-antenna member 22 and the metal material of the holder 14.

  In Example 1, in order to prevent direct electrical connection between the holder 14 and the non-antenna member 22, the non-conductive film 50 is provided on the non-antenna member 22. I can't. For example, a similar non-conductive film may be provided in a region in contact with the non-antenna member 22 in the holder 14.

[Example 2]
FIG. 8 is a plan view of the front side of the electronic apparatus 2 according to the second embodiment.

  The electronic device 2 is a terminal having a communication function, such as a smartphone, a tablet terminal, or a portable game machine.

  The electronic device 2 includes a housing member 60. The casing member 60 forms a casing of the electronic device 2. In addition, the electronic device 2 may include an LCD glass 12, a substrate, a battery, a back panel, and the like.

  FIG. 9 is a schematic cross-sectional view along the XY plane of the outer peripheral portion of the housing member 60. In FIG. 9, a non-conductive member 66 and a conductive member 68 described later are not shown.

  A concave portion (slit portion) 61 is formed on the side surface of the outer peripheral portion of the housing member 60. The recess 61 is recessed in a direction substantially perpendicular to the side surface. As shown in FIG. 9, the recesses 61 are provided at a plurality of locations on the outer peripheral portion. Each recess 61 has the same form, and a non-conductive member 66 and a conductive member 68 described later are selectively inserted into each recess 61. The interval between the recesses 61 in the circumferential direction is set according to the communication frequency of the antenna to be realized.

  The recess 61 is preferably provided in the vicinity of the corner of the housing member 60. In the example shown in FIG. 9, two recesses 61 are provided in the vicinity of the four corners of the housing member 60. The corner vicinity means that it is significantly closer to the center of the corner than the center of the side. In the example shown in FIG. 9, the recess 61 is formed at a symmetrical position from the center of each side of the outer peripheral portion of the housing member 60. Thereby, posture stability at the time of leaning, which will be described later, can be improved without depending on the direction at the time of leaning.

  A conductor 63 is provided on the outer periphery of the housing member 60. Specifically, the housing member 60 includes a non-conductive main body portion 62 and a conductor portion 63 on the outer periphery of the main body portion 62. The main body 62 is made of, for example, a resin material. The conductor portion 63 is provided over substantially the entire circumference of the housing member 60, but is divided by the recess 61. Accordingly, the recess 61 has a function of partitioning the range of the antenna member in the outer peripheral portion (conductor portion 63) of the housing member 60 and the range of the non-antenna member in the outer peripheral portion.

  A non-conductive member 66 (an example of a non-conductive rubber member) or a conductive member 68 (an example of a conductive rubber member) is selectively inserted into the recess 61.

  FIG. 10 is a schematic cross-sectional view along the XY plane of the outer peripheral portion of the housing member 60. FIG. 10 shows a state where the non-conductive member 66 and the conductive member 68 are inserted.

  The non-conductive member 66 is inserted into the recess 61 according to the communication frequency of the antenna to be realized among the plurality of recesses 61, and the conductive member 68 is inserted into the remaining recess 61.

  The nonconductive member 66 is formed of a nonconductive rubber material. The non-conductive rubber material may be, for example, natural rubber, synthetic natural rubber, styrene / butadiene rubber, etc. (see FIG. 15). In the recess 61 in which the non-conductive member 66 is inserted, the recess (electrical insulation) between the conductor portions 63 is maintained by the recess 61.

  The conductive member 68 is made of a conductive rubber material. The conductive rubber material can be formed, for example, by adding metal particles or the like to the rubber raw material. At this time, the conductive member 68 may be formed so as to uniformly include metal particles at a certain density, or may be formed so as to include metal particles concentrated on the surface. As the rubber raw material, the same non-conductive rubber material used for the non-conductive member 66 may be used.

  In the recess 61 in which the conductive member 68 is inserted, due to the conductive member 68, conduction between the conductor portions 63 on both sides of the recess 61 in the circumferential direction is realized. Therefore, the conductive member 68 has a function of expanding the range of the antenna member in the outer peripheral portion of the housing member 60 by being fitted into the recess 61.

  In FIG. 10, the range of the antenna member is indicated by An1 to An4. The length of the antenna member range An <b> 1 to An <b> 4 is related to the communication frequency used in the electronic device 2. For example, when the antenna member range An2 is for a DTV broadcast receiving antenna, the antenna member range An2 is formed such that resonance occurs at a frequency for terrestrial digital broadcasting.

  FIG. 11 is a schematic cross-sectional view along the XY plane of the outer peripheral portion of the housing member 60. FIG. 10 shows a state where the nonconductive member 66 is inserted.

  In the example shown in FIG. 11, the nonconductive member 66 is fitted into all the recesses 61 among the plurality of recesses 61. In FIG. 10, the range of the antenna member is indicated by An11 to An14. Similarly, the length of the antenna member range An <b> 11 to An <b> 14 is related to the communication frequency used in the electronic device 2.

  FIG. 12 is a schematic cross-sectional view along the XY plane of the outer peripheral portion of the housing member 60. FIG. 12 shows a state in which the non-conductive member 66 and the conductive member 68 are inserted in a manner different from that in FIG. In this case, as shown in FIG. 12, the antenna member ranges An21 to An24 are formed. Similarly, the length of the antenna member range An <b> 21 to An <b> 24 is related to the communication frequency used in the electronic device 2.

  By the way, in a mobile phone terminal such as a smartphone, it has been demanded to ensure ease of antenna change and ease of design change even with a single model. This is a problem that occurs when a single model of a mobile phone terminal is shipped to multiple countries and multiple carriers.

  In this regard, according to the second embodiment, the range of the antenna member can be varied only by changing the insertion positions of the non-conductive member 66 and the conductive member 68. Therefore, by changing the insertion position of the non-conductive member 66 and the conductive member 68 according to the difference in the communication frequency to be used or the difference in the specification, the antenna according to the difference in the communication frequency to be used or the difference in the specification etc. The configuration can be realized. Even when a single model of a mobile phone terminal is shipped to a plurality of countries and a plurality of carriers, it is possible to cope with the appearance design of the electronic device 2 being maintained (using the same housing member 60 or the like).

  10 to 12 merely show examples of each state in which the non-conductive member 66 and / or the conductive member 68 are inserted in different modes. Although illustration is omitted, many different states can be realized in addition to the states shown in FIGS.

  FIG. 13 is a diagram schematically illustrating a state in which the electronic device 2 is leaned against the wall 600 on the support base 601. The support base 601 is, for example, a desk.

  The non-conductive member 66 and the conductive member 68 preferably form a most laterally projecting portion on the side surface. Thereby, the non-conductive member 66 and the conductive member 68 can exhibit an anti-slip function in a leaned state as shown in FIG. That is, the non-conductive member 66 and / or the conductive member 68 that is in contact with the support base 601 generates a frictional force between the support base 601 and realizes an anti-slip function. Further, the non-conductive member 66 and / or the conductive member 68 in contact with the wall 600 generates a frictional force between the wall 600 and realizes an anti-slip function. As a result, the stability of the electronic device 2 when standing is improved. As shown in FIG. 14, the anti-slip function can be realized even when the non-conductive member 66 and the conductive member 68 are provided only on one side.

  FIG. 15 is a table showing the rubber material and the friction coefficient of the non-conductive member 66. In FIG. 15, NR, IR, SBR, IIR, NBR, EPDM, and ACM are natural rubber, synthetic natural rubber, styrene / butadiene rubber, butyl rubber, nitrile rubber, ethylene / propylene / diene rubber, and acrylic rubber, respectively. . CSM, EPM, and ECO are hyperon, ethylene / propylene rubber, and epichlorohydrin rubber, respectively. In order to enhance the anti-slip function, a rubber material having a high friction coefficient is used.

  By the way, generally, from the viewpoint of stably maintaining the posture of the electronic device leaning on the wall surface, preferable support points on the outer peripheral portion of the casing of the electronic device are as follows. That is, preferable support points are positions farther away from the gravity vector extending in the direction of gravity from the position of the center of gravity of the electronic device 2 and two points on both ends (that is, corners) of the side that contacts the wall or the support base. It is. Unlike the second embodiment, if the outer peripheral portion does not function as an antenna, it is easy to form a slit portion at a position that is a preferable support point and place an elastic body (an elastic body that can exhibit an anti-slip function). It is. However, when the outer peripheral portion of the housing functions as an antenna, the elastic body is disposed only from the viewpoint of mechanical stability (that is, the elastic body is disposed by forming a slit portion at a position to be a preferable support point) The antenna length is limited. In such a case, the antenna frequency characteristics are limited.

  In this regard, according to the second embodiment, since the plurality of concave portions 61 are provided in the vicinity of the four corners of the casing member 60 of the electronic device 2, the outer peripheral portion of the casing can function as an antenna. While possible, it is possible to achieve both mechanical stability and securing of a desired frequency characteristic. Therefore, according to the second embodiment, it is possible to provide the elastic body (the non-conductive member 66 and the conductive member 68) at a position where the mechanical stability of the electronic device 2 can be secured with respect to the gravity vector, and the antenna. The frequency characteristics can be easily set to a desired frequency.

  The second embodiment described above can be realized in combination with the first embodiment described above. Specifically, the conductor part 63 is formed of an aluminum alloy such as No. 6000 aluminum alloy or No. 7000 aluminum alloy (super duralumin). In the same manner as the metal housing member 20 according to the first embodiment described above, the conductor portion 63 is connected to a feeding point or a holder (not shown) on a substrate (not shown) via the fastening member 90 and the fastening member 90A. Electrically connected. Thereby, the effect of Example 1 mentioned above with the effect of Example 2 can be acquired.

  In the example shown in FIGS. 10 to 12, the non-conductive member 66 is inserted, but the non-conductive member 66 may be omitted. In this case, for example, in the example shown in FIG. 11, the anti-slip function cannot be obtained, but a desired antenna configuration can be realized.

[Example 3]
In the following description of the third embodiment, components that are substantially the same as those of the above-described first embodiment are denoted by the same reference numerals, and redundant description may be omitted.

  16 and 17 are exploded perspective views of the electronic device 3 according to the third embodiment. 16 is a perspective view seen from the Z2 side, and FIG. 17 is a perspective view seen from the Z1 side. FIG. 18 is an enlarged view of the A1 portion of FIG. FIG. 19A is a plan view of the front side of the electronic device 3, and FIG. 19B is a plan view of the rear side of the electronic device 3. FIG. 19B shows a state where the case 8 and the pressure conductive sheet 9 are removed for explanation. 20 is a cross-sectional view taken along line EE in FIG. 19A, FIG. 21 is a cross-sectional view taken along line DD in FIG. 19A, and FIG. 22 is taken along line CC in FIG. 23 is a cross-sectional view taken along line BB in FIG. 19A. FIG. 24 is an enlarged view of a portion A2 in FIG.

  The electronic device 3 is a terminal having a communication function, such as a smartphone, a tablet terminal, or a portable game machine.

  The electronic device 3 includes a case 8, a pressure conductive sheet 9 (an example of a sheet member), an LCD glass 12, a sheet metal member 15, a substrate 30 </ b> A, a battery 40, and an antenna forming member 80.

  The case 8 forms the housing of the electronic device 3. The case 8 is made of, for example, a resin material.

  The pressure conductive sheet 9 is made of a pressure conductive rubber material. The pressurized conductive sheet 9 has a relatively high thermal conductivity when pressed, and has conductivity only at the portion where the pressure is applied when pressed. That is, the pressurization conductive sheet 9 has conductivity in the pressed part and non-conductivity in the part not pressed. The pressurized conductive rubber material is a material in which metal particles are uniformly mixed with a highly insulating rubber material. When pressurized, the internal metal particles come into contact with each other or come close to each other and develop conductivity. Similarly, the pressurized conductive rubber material develops a heat flow rate (thermal conductivity) when the internal metal particles are in contact with or close to each other.

  The pressurized conductive sheet 9 is provided on the front surface of the case 8. The pressurized conductive sheet 9 is integrated with the case 8 by pasting or the like, but may be integrally formed with the case 8.

  The sheet metal member 15 is formed of a thin sheet metal. The sheet metal member 15 is provided on the back side of the LCD glass 12 and holds the LCD glass 12. The sheet metal member 15 has, for example, a shape that covers the side surface and the back surface of the LCD glass 12. The sheet metal member 15 has a function of protecting (or reinforcing) the LCD glass 12. The sheet metal member 15 is grounded on the substrate 30A via a contact spring (not shown). Thereby, the shield characteristic by the sheet-metal member 15 improves, and the influence on the operation | movement of the electronic component on the board | substrate 30A by noise, static electricity, etc. can be reduced, for example.

  Various electronic circuits 32 for realizing various functions of the electronic device 3 are provided on the substrate 30A. The electronic circuit 32 includes, for example, an electronic circuit included in an electronic component in the form of a chip, and a wiring pattern (including a land 37 serving as a feeding point described later) formed on the substrate 30A. The substrate 30 </ b> A is provided on the back side of the sheet metal member 15. The substrate 30A includes a circuit portion (a portion to be grounded) that is electrically connected to the holder 14 via, for example, a contact spring (not shown). The substrate 30A may include two or more substrates such as a main substrate 301 and a sub substrate 302 as shown in FIG.

  The antenna forming member 80 is formed of a nonconductive material such as a resin material. As will be described later, the antenna forming member 80 cooperates with the pressurized conductive sheet 9 to form an antenna portion. The antenna forming member 80 is provided on the back side of the sheet metal member 15. The antenna forming member 80 is provided in such a manner that the pressure conductive sheet 9 is sandwiched between the antenna forming member 80 and the case 8 in the Z direction. The antenna forming member 80 is in contact with the surface of the sheet metal member 15 at the back surface. Accordingly, the antenna forming member 80 is restrained by the sheet metal member 15 from being displaced toward the Z1 side in the Z direction. In the example shown in FIG. 16, four antenna forming members 80 are provided corresponding to the main substrate 301, and two antenna forming members 80 are provided corresponding to the sub substrate 302. However, the number of the antenna forming members 80 is arbitrary and is determined according to the number of communication frequencies used in the electronic device 3. Below, the antenna formation member 80 provided mainly corresponding to the main board | substrate 301 is demonstrated as a representative.

  The antenna forming member 80 includes a convex portion 81. The convex portion 81 is formed in a pattern corresponding to the antenna pattern when viewed in the Z direction. That is, the length of the convex portion 81 (the length of the pattern when viewed in the Z direction) is determined according to the communication frequency used in the electronic device 3. In the example shown in FIG. 16, convex portions 81 are respectively formed on the four antenna forming members 80 facing the main board 301. In this case, four types of antenna portions can be formed. In the third embodiment, one convex portion 81 is formed on one antenna forming member 80, but two or more convex portions 81 may be formed on one antenna forming member 80.

  The antenna forming member 80 presses the pressurized conductive sheet 9 to the Z2 side in the Z direction (an example of the first direction) by the convex portion 81. Therefore, in the pressurized conductive sheet 9, the part pressed by the convex part 81 has conductivity, and the part pressed by the convex part 81 becomes the antenna part. In FIG. 17, the part pressed by the convex part 81 in the pressurization electroconductive sheet 9 is shown concavely. 20 and 22 show ranges An30, An31, and An32 of the antenna portion formed in this way. In this way, the antenna forming member 80 forms an antenna portion in cooperation with the pressurized conductive sheet 9. Note that the shape and the like of the antenna portion can be easily changed by changing the shape and the like of the convex portion 81 in the antenna forming member 80. FIG. 23 similarly shows the antenna part ranges An40 and An41 formed by the antenna forming member 80 facing the main board 301.

  As shown in FIGS. 16 and 19B, the antenna forming member 80 includes a substrate facing portion 82 at the end position of the antenna pattern (end position on the feeding point side) in a top view. The substrate facing portion 82 faces the substrate 30A in the Z direction. The substrate facing portion 82 is formed thinner than other portions of the antenna forming member 80 (portions not facing the substrate 30A), and can be opposed to the substrate 30A (see FIGS. 22 and 24). The substrate facing portion 82 is formed with an end portion on the feeding point side of the convex portion 81. The convex portion 81 in the substrate facing portion 82 has a through hole 82a (see FIG. 24) through which a connection conductor portion 38 described later passes. ) Is formed.

  The electronic device 3 further includes a connection conductor portion 38 that electrically connects the antenna portion to the land 37 (feeding point) on the substrate 30A. The connection conductor portion 38 is formed of a conductive material. For example, as shown in FIGS. 18 and 24, the connecting conductor portion 38 is in the form of a pin. As shown in FIGS. 18 and 24, the connecting conductor portion 38 passes through the convex portion 81, and the end portion on the Z2 side in the Z direction is in contact with the pressurized conductive sheet 9 (antenna portion). In addition, the connection conductor part 38 penetrates the convex part 81 in the edge part position by the side of the feeding point of an antenna pattern as above-mentioned (refer FIG. 19B). Further, as shown in FIGS. 18 and 24, the end portion on the Z1 side in the Z direction of the connection conductor portion 38 is electrically connected to the land 37 on the substrate 30A. Thereby, the site | part (antenna part) pressed by the convex part 81 in the pressurization conductive sheet 9 can be electrically connected to the electronic circuit 32 of the board | substrate 30A.

  The electronic device 3 preferably further includes a heat radiation pressing member 83 (an example of a pressing member). The heat radiation pressing member 83 may be separate from the antenna forming member 80 or may be integrated with the antenna forming member 80. As shown in FIG. 19B, the heat radiation pressing member 83 is provided in a region overlapping the substrate 30A when viewed in the Z direction. The heat radiation pressing member 83 is separated from the convex portion 81 of the antenna forming member 80. In the heat radiation pressing member 83, the surface on the Z1 side abuts on the surface of the substrate 30A. Therefore, the displacement of the heat radiation pressing member 83 toward the Z1 side in the Z direction is restricted by the substrate 30A. The heat radiation pressing member 83 presses the pressurized conductive sheet 9 toward the Z2 side in the Z direction (see FIGS. 20, 21, and 22). In FIG. 17 and FIG. 20, the portion pressed by the heat radiation pressing member 83 in the pressurized conductive sheet 9 is shown in a concave shape. 20, FIG. 21 and FIG. 22 show a range RS1 of a portion pressed by the heat radiation pressing member 83 in the pressurized conductive sheet 9. FIG. In the pressurized conductive sheet 9, the portion pressed by the heat radiating pressing member 83 has a relatively high thermal conductivity, and the portion pressed by the heat radiating pressing member 83 becomes the heat radiating portion. In this way, the antenna forming member 80 forms a heat radiating portion capable of releasing heat to the outside through the case 8 in cooperation with the pressurized conductive sheet 9.

  The heat radiation pressing member 83 preferably further includes a grounding opening 87 (an example of an opening) as shown in FIGS. 16 and 19B. The grounding opening 87 may be in the form of a hole or notch. The grounding opening 87 is formed at a location where the grounding conductor 89 is provided as viewed in the Z direction. The grounding conductor portion 89 is conductive and includes a screw 891 and a nut 892 as shown in FIG. One or more grounding conductor portions 89 may be provided for one heat radiation pressing member 83. The grounding conductor 89 extends in the Z direction through the grounding opening 87 and electrically connects the portion pressed by the heat dissipation pressing member 83 and the sheet metal member 15. That is, as shown in FIG. 24, the head of the screw 891 contacts the heat radiating portion (the portion pressed by the heat radiating pressing member 83 in the pressurized conductive sheet 9) in the Z direction, and the nut 892 contacts the sheet metal member 15. Abuts in the Z direction. Here, as described above, the portion (heat radiating portion) pressed by the heat radiating pressing member 83 in the pressure conductive sheet 9 has conductivity. Accordingly, the portion pressed by the heat radiation pressing member 83 in the pressurized conductive sheet 9 can function as a shield portion by being grounded through the grounding conductor portion 89 in this way. As described above, the heat radiating pressing member 83 is provided in a region overlapping the substrate 30A when viewed in the Z direction, and thus functions as a heat radiating portion and a shield portion are effective.

  The heat radiation pressing member 83 preferably further has a heating element opening 84 as shown in FIGS. 16 and 19B. The heating element opening 84 is provided in a region overlapping the electronic circuit 32 to be cooled (hereinafter referred to as “heating element”) as viewed in the Z direction. A heat generating body presses the pressurization conductive sheet 9 through the opening 84 for heat generating bodies (refer FIG.21 and FIG.22). In FIG. 17, FIG. 21 and FIG. 22, the portion pressed by the heating element in the pressurized conductive sheet 9 is shown in a concave shape. 21 and 22 show a range RS2 of a portion pressed by the heating element in the pressurized conductive sheet 9. In the pressurized conductive sheet 9, the portion pressed by the heating element has a relatively high thermal conductivity, and the portion pressed by the heating element becomes a heat radiating portion. In this way, the heat from the heating element can be efficiently released to the outside via the pressurized conductive sheet 9 and the case 8.

  By the way, in a mobile phone terminal such as a smartphone, it is required to secure electromagnetic shielding characteristics from the outside to the electronic circuit 32 and to secure heat dissipation characteristics when the electronic circuit 32 is driven. In addition, even with a single model, it is newly required to ensure ease of antenna change and ease of design change. This is a problem that occurs when a single model of a mobile phone terminal is shipped to multiple countries and multiple carriers. In addition, with shipment to a plurality of countries and a plurality of carriers, it is necessary to adjust the electromagnetic shielding characteristics and the heat radiation characteristics according to the usage environment.

  In this regard, according to the third embodiment, the antenna portion can be formed by the pressurized conductive sheet 9 and the antenna forming member 80. Furthermore, changing or adjusting the antenna length is greatly facilitated only by changing the antenna forming member 80 (or changing the pattern of the convex portions 81). In addition, since the heat radiation pressing member 83 is disposed adjacent to the heating element (electronic circuit 32), changing the width or the like of the heat radiation pressing member 83 changes the expansion and reduction of the heat radiation portion and the shield portion. And adjustment is greatly facilitated. Thus, according to Example 3, it corresponds to a different communication frequency for each destination country or for each carrier only by changing the shape of the antenna forming member 80 that presses the pressurized conductive sheet 9 or the pressing member 83 for heat dissipation. it can. In addition, it is possible to easily realize shield characteristics and heat dissipation characteristics according to different performance requirements depending on the destination country and specifications, and it is easy to change specifications afterwards.

  Although each embodiment has been described in detail above, it is not limited to a specific embodiment, and various modifications and changes can be made within the scope described in the claims. It is also possible to combine all or a plurality of the components of the above-described embodiments.

In addition, the following additional remarks are disclosed regarding the above Example.
[Appendix 1]
An antenna member that forms part of the housing and is formed of a first metal material;
A substrate,
A feeding point provided on the substrate and formed of a second metal material different from the first metal material;
A first fastening member for fastening the antenna member and the substrate, the first fastening member transmitting high frequency power from the feeding point to the antenna member or transmitting high frequency power from the antenna member to the feeding point; Including
The first fastening member is an electronic device including a portion where an ionization tendency on an electrochemical row is between the first metal material and the second metal material.
[Appendix 2]
The first fastening member includes a first part that is formed of a metal material and contacts the antenna member, and a second part that is formed of a metal material and contacts the feeding point,
The electronic device according to appendix 1, wherein the metal material of at least one of the first part and the second part has an ionization tendency on an electrochemical column between the first metal material and the second metal material. .
[Appendix 3]
The difference in natural potential between the metal material in the first part and the first metal material and the difference in natural potential between the metal material in the second part and the second metal material are 0 respectively. The electronic device according to attachment 2, wherein the electronic device is 6 V or less.
[Appendix 4]
The antenna member has a first surface region to which a nonconductive film is applied, and a second surface region to which a nonconductive film is not applied,
The electronic device according to appendix 2 or 3, wherein the first portion of the first fastening member is in contact with the second surface region of the antenna member.
[Appendix 5]
5. The electronic device according to claim 1, wherein the first fastening member includes a screw that forms the second part and a nut that forms the first part. 6.
[Appendix 6]
A non-antenna member that forms another part of the housing and is formed of the first metal material;
A ground member formed of a third metal material different from the first metal material and grounded;
A second fastening member that fastens the non-antenna member and the ground member, and further includes a second fastening member that conducts between the non-antenna member and the ground member;
The electronic device according to any one of appendices 1 to 5, wherein the second fastening member includes a portion where an ionization tendency on an electrochemical row is between the first metal material and the third metal material. .
[Appendix 7]
The second fastening member includes a third portion that is formed of a metal material and contacts the non-antenna member, and a fourth portion that is formed of a metal material and contacts the ground member,
The electronic device according to appendix 6, wherein the metal material of at least one of the third part and the fourth part has an ionization tendency on the electrochemical column between the first metal material and the third metal material. .
[Appendix 8]
The difference in natural potential between the metal material in the third part and the first metal material and the difference in natural potential between the metal material in the fourth part and the third metal material are 0 respectively. The electronic device according to appendix 7, which is 6 V or less.
[Appendix 9]
The non-antenna member has a third surface region to which a non-conductive film is applied and a fourth surface region to which a non-conductive film is not applied,
The electronic device according to appendix 7 or 8, wherein the ground member is in contact with the third surface region of the non-antenna member.
[Appendix 10]
The electronic device according to appendix 9, wherein the third portion of the second fastening member contacts the fourth surface region of the non-antenna member.
[Appendix 11]
The electronic device according to any one of appendices 7 to 10, wherein the second fastening member includes a screw that forms the fourth portion and a nut that forms the third portion.
[Appendix 12]
On the outer peripheral surface of the housing, a recess that defines a range of the antenna member in the circumferential direction is formed,
The electronic device according to any one of appendices 1 to 11, further including a non-conductive rubber member fitted in the recess.
[Appendix 13]
The electronic device according to any one of appendices 1 to 12, wherein the first metal material is No. 7000 aluminum alloy.
[Appendix 14]
A housing member;
A conductor provided on the outer periphery of the housing member to form an antenna member;
A plurality of recesses formed on a side surface of the outer peripheral portion and dividing the conductor portion in a circumferential direction;
An electronic device comprising: a nonconductive rubber member formed of nonconductive rubber and provided in at least one of the plurality of recesses.
[Appendix 15]
The electronic device according to appendix 14, wherein the non-conductive rubber member forms a portion that protrudes most laterally on the side surface.
[Appendix 16]
The non-conductive rubber member is provided in a part of the plurality of recesses,
The conductive rubber member further includes a conductive rubber member that is formed of conductive rubber and is provided in a concave portion of the plurality of concave portions where the non-conductive rubber member is not provided, and forms a range of the antenna member in the outer peripheral portion. Electronic equipment according to appendix 14 or 15.
[Appendix 17]
The electronic device according to appendix 16, wherein the conductive rubber member forms, together with the non-conductive rubber member, a portion that protrudes most laterally on the side surface.
[Appendix 18]
The housing member has a substantially rectangular shape,
The electronic device according to any one of appendices 14 to 17, wherein the plurality of recesses are provided in the vicinity of corners at four corners of the housing member.
[Appendix 19]
A substrate,
A feeding point provided on the substrate;
A sheet member having conductivity in the pressed portion and non-conductive in the portion not pressed;
An antenna forming member formed of a non-conductive material and pressing the sheet member in the first direction;
An electronic device including a connection conductor portion that is formed of a conductive material and electrically connects a portion of the sheet member that is pressed by the antenna forming member and the feeding point.
[Appendix 20]
The antenna forming member includes a convex portion protruding toward the sheet member,
The convex portion is formed in a pattern corresponding to the antenna pattern when viewed in the first direction,
The electronic device according to appendix 19, wherein the antenna forming member presses the sheet member with the convex portion.
[Appendix 21]
The sheet member has higher thermal conductivity than the part where the pressed part is not pressed,
The electronic apparatus according to appendix 20, further including a pressing member that is provided apart from the convex portion and presses the sheet member in the first direction.
[Appendix 22]
The electronic device according to appendix 21, wherein the pressing member is provided in a region overlapping the substrate when viewed in the first direction.
[Appendix 23]
A grounding conductor portion for grounding a portion of the sheet member that is pressed by the pressing member;
The electronic device according to appendix 21 or 22, wherein the pressing member has an opening through which the grounding conductor portion passes in the first direction.
[Appendix 24]
The connecting conductor portion penetrates the convex portion in the first direction, one end in the first direction is in contact with the sheet member, and the other end in the first direction is electrically connected to the feeding point. 24. The electronic device according to any one of appendices 20 to 23.
[Appendix 25]
A heating element provided on the substrate;
The electronic device according to any one of appendices 19 to 24, wherein the heating element presses the sheet member in the first direction.
[Appendix 26]
An antenna member that forms part of the housing and is formed of a first metal material;
A substrate,
A feeding point provided on the substrate and formed of a second metal material different from the first metal material;
A first fastening member for fastening the antenna member and the substrate, comprising: a first part that contacts the antenna member; and a second part that contacts the feeding point; and a high frequency from the feeding point to the antenna member. A first fastening member that transmits power or transmits high-frequency power from the antenna member to the feed point;
Each metal material of the first part and the second part is about the ionization tendency on the electrochemical column.
(1) A first relationship in which the metal material of the first part is the same as the first metal material, and the metal material of the second part is between the first metal material and the second metal material,
(2) a second relationship in which the metal material of the first part is between the first metal material and the second metal material, and the metal material of the second part is the same as the second metal material; And (3) An electronic apparatus satisfying at least one of a third relationship in which each metal material of the first part and the second part is between the first metal material and the second metal material.
[Appendix 27]
A non-antenna member that forms part of the housing and is formed of a first metal material;
A ground member formed of a third metal material different from the first metal material and grounded;
A second fastening member that fastens the non-antenna member and the ground member, and includes a third part that contacts the non-antenna member and a fourth part that contacts the ground member, and the non-antenna member and the ground member A second fastening member that conducts between the ground member and the ground member;
Each metal material of the third part and the fourth part is about ionization tendency on the electrochemical column
(4) A fourth relationship in which the metal material of the third part is the same as the first metal material, and the metal material of the fourth part is between the first metal material and the third metal material,
(5) A fifth relationship in which the metal material of the third part is between the first metal material and the third metal material, and the metal material of the fourth part is the same as the third metal material, And (6) An electronic device satisfying at least one of a sixth relationship in which each metal material of the third part and the fourth part is between the first metal material and the third metal material.

1, 2, 3 Electronic device 8 Case 9 Pressurized conductive sheet 12 LCD glass 14 Holder 15 Sheet metal member 20 Metal housing member 21 Antenna member 22 Non-antenna member 30, 30A Substrate 31 Conductor pattern 32 Electronic circuit 36 Feed point 37 Land 38 Connection conductor portion 39 Hole 40 Battery 42 Rear panel 50 Non-conductive film 60 Housing member 61 Recess (slit portion)
62 Body portion 63 Conductor portion 66 Non-conductive member 68 Conductive member 80 Antenna forming member 81 Protruding portion 82 Substrate facing portion 82a Through hole 83 Heat radiating pressing member 84 Heating element opening 87 Grounding opening 89 Grounding conductor portion 90, 90A Fastening member 91 Screw 92 Nut 93 Screw 94 Nut 121 Touch panel 141 Hole 210 Hole 212 Hole 301 Main board 302 Sub board 600 Wall 601 Support base 891 Screw 892 Nut

Claims (13)

An antenna member that forms part of the housing and is formed of a first metal material;
A substrate,
A feeding point provided on the substrate and formed of a second metal material different from the first metal material;
A first fastening member for fastening the antenna member and the substrate, the first fastening member transmitting high frequency power from the feeding point to the antenna member or transmitting high frequency power from the antenna member to the feeding point; Including
The first fastening member is an electronic device including a portion where an ionization tendency on an electrochemical row is between the first metal material and the second metal material. The first fastening member includes a first part that is formed of a metal material and contacts the antenna member, and a second part that is formed of a metal material and contacts the feeding point,
2. The electron according to claim 1, wherein the metal material of at least one of the first part and the second part has an ionization tendency on an electrochemical column between the first metal material and the second metal material. machine.   The difference in natural potential between the metal material in the first part and the first metal material and the difference in natural potential between the metal material in the second part and the second metal material are 0 respectively. The electronic device according to claim 2, which is 6 V or less. The antenna member has a first surface region to which a nonconductive film is applied, and a second surface region to which a nonconductive film is not applied,
The electronic device according to claim 2, wherein the first portion of the first fastening member is in contact with the second surface region of the antenna member.   5. The electronic device according to claim 2, wherein the first fastening member includes a screw that forms the second part and a nut that forms the first part. 6. A non-antenna member that forms another part of the housing and is formed of the first metal material;
A ground member formed of a third metal material different from the first metal material and grounded;
A second fastening member that fastens the non-antenna member and the ground member, and further includes a second fastening member that conducts between the non-antenna member and the ground member;
The electron according to any one of claims 1 to 5, wherein the second fastening member includes a portion where an ionization tendency on an electrochemical row is between the first metal material and the third metal material. machine. The second fastening member includes a third portion that is formed of a metal material and contacts the non-antenna member, and a fourth portion that is formed of a metal material and contacts the ground member,
7. The electron according to claim 6, wherein the metal material of at least one of the third part and the fourth part has an ionization tendency on an electrochemical column between the first metal material and the third metal material. machine.   The difference in natural potential between the metal material in the third part and the first metal material and the difference in natural potential between the metal material in the fourth part and the third metal material are 0 respectively. The electronic device according to claim 7, wherein the electronic device is 6 V or less. The non-antenna member has a third surface region to which a non-conductive film is applied and a fourth surface region to which a non-conductive film is not applied,
The electronic device according to claim 7, wherein the ground member is in contact with the third surface region of the non-antenna member.   The electronic device according to claim 9, wherein the third portion of the second fastening member is in contact with the fourth surface region of the non-antenna member.   The electronic device according to claim 7, wherein the second fastening member includes a screw that forms the fourth portion and a nut that forms the third portion. On the outer peripheral surface of the housing, a recess that defines a range of the antenna member in the circumferential direction is formed,
The electronic device of any one of Claims 1-11 which further contains the nonelectroconductive rubber member fitted by the said recessed part.   The electronic device according to any one of claims 1 to 12, wherein the first metal material is a No. 7000 aluminum alloy.

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