Mobile terminal device

Abstract

To provide a mobile terminal device that can prevent deterioration of antenna performance and stably ensure continuity between a circuit member and an antenna.SOLUTION: A mobile terminal device according to the present disclosure includes a circuit member, a conductive member having a connecting portion extending toward the circuit member, and a flexible member connecting the connecting portion and the circuit member, and the flexible member has two or more points of contact with the connecting portion, and the conductive member is arranged at a position that does not overlap the circuit member in the vertical direction when viewed from the side.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a mobile terminal device.

Background Art

[0002] Conventionally, various mobile terminal devices have been disclosed.

[0003] For example, in Patent Document 1, in order to stabilize the contact between the metal housing and the printed circuit board without reducing the component mounting area of the printed circuit board and prevent deterioration of wireless performance, between the seating surface of the boss and the contact surface of the printed circuit board that contacts the seating surface, a metal plate processed to contact those seating surface and contact surface with spring pressure is sandwiched, and the printed circuit board and the case member are fastened to the boss in a state where the metal plate is fixed to the boss. A boss mounting structure of a portable wireless device is disclosed.

[0004] Also, in Patent Document 2, in order to achieve stabilization of grounding and freedom of grounding position in a mobile phone with a metal housing, a plurality of conductive rubber members whose one ends contact the metal battery cover 1 are provided on the plastic frame portion, and it is disclosed that the other ends of the conductive rubber members are brought into contact with the metal plate 4. Further, in the above document, it is disclosed that a metal spring portion provided on the metal plate is brought into contact with each grounding point provided on the circuit board 3, and the conductive rubber member is brought into contact with the grounding point on the circuit board.

[0005] Furthermore, Patent Document 3 discloses a spring connector in which the electrical contact resistance is stable and the contact portion is not damaged even when the plunger is contacted not only in the axial direction but also in a direction perpendicular to it, by arranging a plunger made of a conductive material in a hole a of a holding member so as to be movable in the axial direction but not to rotate around the axis, and compressing a spring in the hole to elastically bias the plunger in the protruding direction. It also discloses forming the end face of the plunger as a bevel that intersects obliquely with respect to the axial direction, forming the tip surface of the contact portion as a bevel in the same direction as the bevel, assembling a conductive terminal made of a conductive material to the holding member so as to prevent the plunger from coming out and so as to allow the contact portion to protrude, and arranging the sliding contact portion of the conductive terminal on the holding member so that the off-center plunger slides against the bevel when the spring elastically biases it.

[0006] Furthermore, Patent Document 4 discloses a structure in which, in a side-projecting type surface mount, the surface mount contact is surface mounted by soldering the bottom plate to the ground pattern of the printed circuit board, and after the printed circuit board is assembled to the housing, when the housing lid or other printed circuit boards are assembled on top of the surface mount contact, the retraction locking part is pressed and disengaged from the locking hole. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2000-251972 [Patent Document 2] Japanese Patent Publication No. 2009-194223 [Patent Document 3] Japanese Patent Publication No. 2003-100374 [Patent Document 4] Japanese Patent Publication No. 2009-117769 [Overview of the project] [Problems that the invention aims to solve]

[0008] However, in the device disclosed above, antenna performance may deteriorate as the distance between the screw and the display decreases. Also, antenna characteristics may deteriorate as the distance between the display and the antenna entry point decreases. Furthermore, due to variations in assembly in the planar direction, the contact pressure may weaken and conductivity may become unstable when the distance to the contacts increases.

[0009] Therefore, in view of the above problems, this disclosure provides a portable terminal device that prevents deterioration of antenna performance and can stably ensure conductivity between circuit components and the antenna. [Means for solving the problem]

[0010] One aspect of the present disclosure comprises a circuit member, a conductive member having a connecting portion extending toward the circuit member, and a flexible member connecting the connecting portion and the circuit member, wherein the flexible member has two or more contact points with the connecting portion, and the conductive member is positioned so as not to overlap with the circuit member in the vertical direction when viewed from the side. [Effects of the Invention]

[0011] As explained above, this disclosure provides a portable terminal device that can prevent deterioration of antenna performance and stably ensure conductivity between circuit components and the antenna. [Brief explanation of the drawing]

[0012] [Figure 1] Figure 1 is a perspective view showing a schematic of a mobile terminal device according to the first embodiment, and is a view before the flexible member is connected to the conductive member. [Figure 2] Figure 2 is a perspective view showing a schematic of a portable terminal device according to the first embodiment, and is a view after the flexible member has been connected to the conductive member. [Figure 3] Figure 3 is a side view of Figure 2. [Figure 4] Figure 4 is a side view showing a modified example of the flexible member shown in Figure 1. [Figure 5]FIG. 5 is a perspective view showing another modification of the flexible member shown in FIG. 1. [Figure 6] FIG. 6 is a perspective view showing another modification of the flexible member shown in FIG. 1. [Figure 7] FIG. 7 is a perspective view showing a modification of the conductive member shown in FIG. 1. [Figure 8] FIG. 8 is a perspective view showing an outline of a mobile terminal device according to the second embodiment, and is a view before the flexible member is connected to the conductive member. [Figure 9] FIG. 9 is a perspective view showing an outline of a mobile terminal device according to the second embodiment, and is a view after the flexible member is connected to the conductive member. [Figure 10] FIG. 10 is a perspective view showing a modification of the mobile terminal device according to the second embodiment, and is a view before the flexible member is connected to the conductive member. [Figure 11] FIG. 11 is a perspective view showing a modification of the mobile terminal device according to the second embodiment, and is a view after the flexible member is connected to the conductive member. [Figure 12] FIG. 12 is a perspective view showing an outline of a mobile terminal device according to the third embodiment, and is a view before the flexible member is connected to the conductive member. [Figure 13] FIG. 13 is a perspective view showing a modification of the mobile terminal device according to the third embodiment, and is a view before the flexible member is connected to the conductive member. [Figure 14] FIG. 14 is a perspective view showing another modification of the mobile terminal device according to the third embodiment, and is a view before the flexible member is connected to the conductive member. [Figure 15] FIG. 15 is a side view showing another modification of the flexible member. [Figure 16] FIG. 16 is a perspective view showing an outline of a mobile terminal device according to the fourth embodiment using the flexible member shown in FIG. 15, and is a view after the flexible member is connected to the conductive member. [Figure 17] FIG. 17 is a side view showing another modification of the flexible member. [Figure 18]FIG. 18 is a perspective view showing an outline of a mobile terminal device according to a fifth embodiment using the flexible member shown in FIG. 17, and is a view after the flexible member is connected to the conductive member.

Embodiments for Carrying out the Invention

[0013] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the content of the present disclosure described in the claims, and not all of the configurations described in the embodiments are essential as the solution means of the present disclosure. The drawings show a mobile terminal device, etc. by the X-axis, Y-axis (depth), and Z-axis (height).

[0014] [First Embodiment] FIG. 1 is a perspective view showing an outline of a mobile terminal device 100 according to a first embodiment, and is a view before the flexible member 30 is connected to the conductive member 20. FIG. 2 is a perspective view showing an outline of the mobile terminal device 100 according to the first embodiment, and is a view after the flexible member 30 is connected to the conductive member 20. FIG. 3 is a side view of FIG. 2. As shown in FIGS. 1, 2, and 3, the mobile terminal device 100 according to the first embodiment includes a circuit member 10, a conductive member 20, and a flexible member 30. When the flexible member 30 provided in the mobile terminal device 100 shown in FIG. 1 is connected to the conductive member 20, it becomes as shown in FIGS. 2 and 3, and the flexible member 30 and the conductive member 20 are electrically connected. A display (not shown) is provided in the -Z direction shown in FIGS. 1, 2, and 3.

[0015] The mobile terminal device 100 is applicable to devices that perform wireless communication such as smartphones, tablets, and notebook computers. Further, the mobile terminal device 100 is applicable to devices using power supply electrodes and ground electrodes for general electronic devices such as the above-mentioned mobile terminals. The configuration of the mobile terminal device 100 will be described below.

[0016] The circuit member 10 is a printed circuit board on which electronic components are mounted. The printed circuit board is composed of a plurality of circuits, insulating resins, etc.

[0017] The conductive member 20 is a conductive member that receives radio waves, such as an antenna. The conductive member 20 has a connecting portion 22 that extends toward the circuit member 10. The connecting portion 22 extends toward the circuit member 10 from the base portion 21 of the conductive member 20. In addition, the conductive member 20 is positioned so as not to overlap with the circuit member 10 in the vertical direction in the side view in Figure 3. In other words, the conductive member 20 and the connecting portion 22 that constitutes a part of it are positioned so as not to overlap with the circuit member 10 in the vertical direction in both the plan view and the side view.

[0018] The flexible member 30 is mounted on the circuit member 10, connecting the connection part 22 to the circuit member 10 and providing electrical contact between the connection part 22 and the circuit member 10. The flexible member 30 has two or more contact points with the connection part 22. The flexible member 30 is made of a metal such as copper, iron, stainless steel, or titanium, and examples include leaf springs.

[0019] Since the conductive member 20 is positioned so as not to overlap with the circuit member 10 in the vertical direction when viewed from the side, the distance between the conductive member 20 and the display can be increased, thereby preventing deterioration of antenna performance. Furthermore, since the flexible member 30 has two or more contact points with the connection part 22, stable electrical conductivity between the circuit member 10 and the antenna can be ensured.

[0020] The specific details are described below.

[0021] As shown in Figures 1, 2, and 3, the connecting portion 22 of the conductive member 20 is L-shaped and has a convex portion 23 and a concave portion 24. The convex portion 23 engages with the R portion 35 and the first curved portion 36a, which will be described later.

[0022] The flexible member 30 has a mating portion 31 that connects to and mats with the protrusion 23. The mating portion 31 has an R portion 35 and a first curved portion 36a. In other words, the R portion 35 and the first curved portion 36a of the flexible member 30 mat with the conductive member 20, thereby making electrical contact between the circuit member 10 and the conductive member 20.

[0023] As shown in Figure 3, the R portion 35 has an R shape in a side view. The R portion 35 is in contact with the convex portion 23 on a surface that protrudes in the direction of the convex portion 23. The first curved portion 36a is curved in the direction of the convex portion 23 from the opposite direction to the R portion 35 and is in contact with the convex portion 23 on a surface that protrudes in the direction of the convex portion 23. The first curved portion 36a is J-shaped, L-shaped, or U-shaped. In this way, the R portion 35 and the first curved portion 36a are in contact with the connection portion 22 at two or more points. Furthermore, as shown in Figures 1, 2, and 3, the flexible member 30 has a base surface 32 perpendicular to the surface of the circuit member 10, an upper surface 33 extending from the upper part of the base surface 32 to the R portion 35, and a lower surface 34 extending from the lower part of the base surface 32 to the first curved portion 36a.

[0024] The structure of the connection part 22 and the flexible member 30 as described above has the following effects. Even if the position of the circuit member 10, the flexible member 30 mounted on the circuit member 10, and the conductive member 20 shift during assembly, causing variations in their positions, the upper part of the base surface 32 of the flexible member 30 tilts in the +X or -X direction, the R part 35 becomes movable in the +X or -X direction, and the first curved part 36a is curved, so it can follow the above-mentioned positional shift, and the contact pressure with the connection part 22 can be appropriately adjusted to ensure stable conductivity. In addition, stable conductivity between the circuit member 10 and the flexible member 30 can be ensured without increasing the number of parts in the device. Furthermore, since screw tightening is not required, workability is not worsened, and manufacturing can be done efficiently. Therefore, deterioration of antenna performance can be prevented, and conductivity between the circuit member 10 and the antenna can be ensured more stably. Furthermore, if the depth of the connection portion 22 of the conductive member 20 is longer than the depth (in the Y direction) of the connection portion 22 of the flexible member 30, the connection position between the conductive member 20 and the circuit member 10 can be freely changed. Therefore, the length of the antenna can be adjusted in effect.

[0025] If the conductive member is positioned so as to overlap the circuit member vertically in a side view, and power is supplied from the -Z direction surface (back surface) of the circuit member and a power supply section extending from the conductive member, changing the power supply position would require changing the mold, etc., thus increasing costs and manufacturing time and making it difficult to do so easily. Furthermore, if the power supply position is changed by increasing the area of ​​the power supply section, deterioration of antenna characteristics may occur. Moreover, if the conductive member is positioned so as to overlap the circuit member vertically in a side view, and power is supplied from the +Z direction surface (front surface) of the circuit member and a power supply section extending from the conductive member, changing the power supply position would require changing the external shape of the circuit member, thus increasing costs and manufacturing time and making it difficult to do so easily. Therefore, according to the portable terminal device 100 of the first embodiment, since it has the above configuration, the above effects can be obtained.

[0026] The following describes a preferred form of the flexible member 30.

[0027] Figure 4 is a side view showing a modified example of the flexible member 30 shown in Figure 1. As shown in Figure 4, it is preferable that the first curved portion 36a of the flexible member 30 extends and curves further from the lower surface 34 and has a contact portion 40 that contacts the upper surface 33 of the flexible member 30.

[0028] Even if the positions of the circuit member 10, the flexible member 30 mounted on the circuit member 10, and the conductive member 20 are significantly misaligned, deterioration of antenna performance can be prevented, and stable conductivity between the circuit member 10 and the antenna can be ensured. For example, if the circuit member 10 is misaligned in the +X direction (to the right), the contact pressure between the R portion 35 of the flexible member 30 and the connection portion 22 will be greater than the contact pressure between the first curved portion 36a and the connection portion 22, and conductivity from the conductive member 20 will be through the R portion 35, the upper surface 33 of the flexible member 30, the base surface 32 of the flexible member 30, the lower surface 34 of the flexible member 30, and the circuit member 10. On the other hand, if the circuit member 10 is shifted in the -X direction (leftward), the contact pressure between the first curved portion 36a of the flexible member 30 and the connection portion 22 becomes greater than the contact pressure between the R portion 35 and the connection portion 22, and conductivity from the conductive member 20 becomes limited to the first curved portion 36a, the lower surface 34 of the flexible member 30, and the circuit member 10. In other words, if the positions of the circuit member 10 or the conductive member 20 are significantly shifted, variations in path length may occur, potentially degrading the antenna characteristics.

[0029] Therefore, by having a contact portion 40 in the flexible member 30 as shown in Figure 4, even if the positions of the circuit member 10 and the conductive member 20 are significantly shifted, variations in path length are suppressed by preventing the creation of multiple paths, thereby preventing deterioration of antenna performance and ensuring stable electrical contact between the circuit member 10 and the antenna. The first curved portion 36a may further extend and curve from the lower surface 34 and have a contact portion 41 that contacts the base surface 32 of the flexible member 30.

[0030] Furthermore, as shown in Figures 1 and 4, there may be a gap 60 between the R portion 35 and the first curved portion 36a that is smaller than the thickness (in the X direction) of the connecting portion 22. The gap 60 is the gap between the tip of the R portion 35 in the -Z direction and the first curved portion 36a on the lower surface 34 side. This makes it easier to insert the flexible member 30 into the protrusion 23 of the connecting portion 22, thereby facilitating the manufacture of the portable terminal device 100.

[0031] Figure 5 is a perspective view showing another modified example of the flexible member 30 shown in Figure 1. As shown in Figure 5, it is preferable that the flexible member 30 further has a side portion 37 connecting the upper surface 33 and the lower surface 34. By having the side portion 37, separation between the upper surface 33 and the lower surface 34 is prevented, variations in contact pressure between the connecting portion 22 and the R portion 35 and between the connecting portion 22 and the first curved portion 36a are suppressed, and the conductivity between the circuit member 10 and the antenna can be more stably ensured. The side portion 37 is made of the same material and components as the flexible member 30.

[0032] Figure 6 is a perspective view showing another modified example of the flexible member 30 shown in Figure 1. As shown in Figure 6, it is preferable that the flexible member 30 has a reinforcing portion 38 that covers the base surface 32 side of the flexible member 30. The reinforcing portion 38 covers the upper surface 33 and the base surface 32 of the flexible member 30. By having the reinforcing portion 38, the shape of the flexible member 30 is reinforced, and when the flexible member 30 is mounted on the circuit member 10, the weight of the flexible member 30 is balanced, and displacement of the flexible member 30 during mounting can be suppressed. The reinforcing portion 38 is made of resin or the like.

[0033] A preferred form of the conductive member 20 is described below. Figure 7 is a perspective view showing a modified example of the conductive member 20 shown in Figure 1. As shown in Figure 7, it is preferable that the convex portion 23 has a tapered portion 23a. Having a tapered portion 23a makes it easier to insert the flexible member 30 into the connecting portion 22, thereby facilitating the manufacture of the portable terminal device 100.

[0034] [Second Embodiment] Next, a second embodiment will be described. The portable terminal device 200 according to the second embodiment has modified forms of the connecting portion 22 and the flexible member 30.

[0035] Figure 8 is a schematic perspective view of the portable terminal device 200 according to the second embodiment, showing the flexible member 30 before it is connected to the conductive member 20. Figure 9 is a schematic perspective view of the portable terminal device 200 according to the second embodiment, showing the flexible member 30 after it has been connected to the conductive member 20.

[0036] As shown in Figures 8 and 9, the connection portion 22 has a first contact portion 25 and a second contact portion 26 that extend from the upper and lower parts of the conductive member 20 toward the circuit member 10 (+X direction) and contact the flexible member 30. The flexible member 30 also has a first curved portion 36a and a U-shaped second curved portion 36b that is further curved from the first curved portion 36a. The lower surface 25b of the first contact portion 25 and the upper surface 26a of the second contact portion 26 are connected to the second curved portion 36b. In this way, the first contact portion 25 and the second contact portion 26 are connected to the second curved portion 36b of the flexible member 30, thereby creating electrical contact between the circuit member 10 and the conductive member 20.

[0037] The second curved portion 36b is U-shaped and convex in the +Z direction. The second curved portion 36b connects to the connection portion 22 by its convex surface and tip in the +Z direction, thereby making electrical contact between the circuit member 10 and the conductive member 20. The second curved portion 36b can also be further curved to form a C shape.

[0038] In this way, even if the positions of the circuit member 10, the flexible member 30 mounted on the circuit member 10, and the conductive member 20 shift significantly, the first curved portion 36a and the second curved portion 36b of the flexible member 30 can move and deform in the +X direction or the -X direction, allowing them to follow the above-mentioned positional shift and ensure appropriate contact pressure with the connection portion 22, thereby ensuring more stable conductivity. Furthermore, since the contact between the second curved portion 36b and the first contact portion 25 and the second contact portion 26 occurs at two locations in the + / -Z direction, it is not directly affected by variations in the +X / -X direction, and changes in path length when variations occur are less likely to occur. Therefore, deterioration of antenna performance can be prevented more effectively, and stable conductivity between the circuit member 10 and the antenna can be ensured.

[0039] As shown in Figures 8 and 9, the base surface 32 of the flexible member 30 may be omitted.

[0040] Preferably, the connecting portion 22 further has a first hook portion 27 on the upper surface 26a of the second contact portion 26 for fixing the second curved portion 36b. This stabilizes the connection between the tip of the second curved portion 36b and the second contact portion 26. The first hook portion 27 only needs to be able to fix the second curved portion 36b, and can be, for example, one or more convex members in the +Z direction. Alternatively, the first hook portion 27 may be an inclined member on the upper surface 26a of the second contact portion 26 that is +Z in the X direction. The first hook portion 27 is made of the same material and components as the conductive member 20.

[0041] Next, a modified example of the mobile terminal device 200 according to the second embodiment will be described. The modified example of the mobile terminal device 200 according to the second embodiment is one in which the form of the flexible member 30 is changed.

[0042] Figure 10 is a perspective view showing a modified example of the mobile terminal device 200 according to the second embodiment, before the flexible member 30 is connected to the conductive member 20. Figure 11 is a perspective view showing a modified example of the mobile terminal device 200 according to the second embodiment, after the flexible member 30 is connected to the conductive member 20.

[0043] As shown in Figures 10 and 11, the flexible member 30 has a first curved portion 36a and an S-shaped third curved portion 36c that is further curved from the first curved portion 36a. The lower surface 25b of the first contact portion 25 and the upper surface 26a of the second contact portion 26 are connected to the third curved portion 36c. In this way, the first contact portion 25 and the second contact portion 26 are connected to the third curved portion 36c of the flexible member 30, thereby providing electrical connection between the circuit member 10 and the conductive member 20.

[0044] The third curved portion 36c is S-shaped and convex in the -X and +Z directions. The third curved portion 36c is connected to the connection portion 22 by its convex surface and tip in the -X and +Z directions, thereby making electrical contact between the circuit member 10 and the conductive member 20.

[0045] In this way, even if the positions of the circuit member 10, the flexible member 30 mounted on the circuit member 10, and the conductive member 20 shift significantly, the first curved portion 36a and the third curved portion 36c of the flexible member 30 can deform in the +X direction or the -X direction, allowing them to follow the above-mentioned positional shift and ensure appropriate contact pressure with the connection portion 22, thereby ensuring even more stable conductivity. Furthermore, since the contact between the third curved portion 36c and the first contact portion 25 and the second contact portion 26 occurs at two locations in the + / -Z direction, it is not directly affected by variations in the +X / -X direction, and changes in path length when variations occur are less likely to occur. Therefore, deterioration of antenna performance can be further prevented, and stable conductivity between the circuit member 10 and the antenna can be ensured.

[0046] Preferably, the connecting portion 22 has a second hook portion 28 on the lower surface 25b of the first contact portion 25 for fixing the third curved portion 36c. This stabilizes the connection between the tip of the third curved portion 36c and the first contact portion 25. The second hook portion 28 only needs to be able to fix the third curved portion 36c, and can be, for example, a member with one or more protrusions in the -Z direction. Alternatively, the second hook portion 28 may be an inclined member on the lower surface 25b of the first contact portion 25 that is -Z in the X direction. The second hook portion 28 is made of the same material and components as the conductive member 20.

[0047] [Third Embodiment] Next, a third embodiment will be described. The portable terminal device 300 according to the third embodiment has modified forms of the connecting portion 22 and the flexible member 30.

[0048] Figure 12 is a perspective view showing a schematic of the portable terminal device 300 according to the third embodiment, before the flexible member 30 is connected to the conductive member 20. As shown in Figure 12, the portable terminal device 300 according to the third embodiment includes a fixing part 50 mounted on the circuit member 10. The fixing part 50 clamps and fixes the flexible member 30. Since the flexible member 30 is not mounted on the circuit member 10, it can move independently in the X direction. The flexible member 30 can be T-shaped. The cross-section of the T-shaped flexible member 30 shown in Figure 12 is rectangular. The fixing part 50 is made of the same material and components as the conductive member 20.

[0049] Furthermore, the connecting portion 22 has a first contact portion 25 and a second contact portion 26 that extend from the upper and lower parts of the conductive member 20 toward the circuit member 10 and come into contact with the flexible member 30. In this way, the tip portion 30a of the T-shaped flexible member 30 fixed to the fixing portion 50 is connected to the first contact portion 25 and the second contact portion 26, thereby creating electrical contact between the circuit member 10 and the conductive member 20.

[0050] In this way, even if the positions of the circuit member 10, the flexible member 30, and the conductive member 20 shift significantly, the flexible member 30 can move significantly in the +X or -X direction, allowing it to follow the positional shift and ensure appropriate contact pressure with the connection part 22, thereby securing stable conductivity. As a result, deterioration of antenna performance can be further prevented, and stable conductivity between the circuit member 10 and the antenna can be ensured.

[0051] Furthermore, as shown in Figure 12, it is preferable to have a third hook portion 29 for hooking the T-shaped flexible member 30. This stabilizes the connection between the T-shaped flexible member 30 and the first contact portion 25 and the second contact portion 26. The third hook portion 29 only needs to be able to fix the T-shaped flexible member 30, and can be, for example, a plurality of convex members in the +Z direction. Alternatively, the third hook portion 29 may be a slope that is -Z in the X direction provided on the lower surface 25b of the first contact portion 25, or a slope that is +Z in the X direction provided on the upper surface 26a of the second contact portion 26. The third hook portion 29 is made of the same material and components as the conductive member 20.

[0052] As shown in Figure 13, the flexible member 30 can also be H-shaped. Furthermore, as shown in Figure 14, the cross-section of the T-shaped flexible member 30 can be circular. In the third embodiment, the flexible member 30 of the portable terminal device 300 may be hollow and cylindrical for the purpose of reducing weight.

[0053] [Fourth Embodiment] Next, a fourth embodiment will be described. The portable terminal device 400 according to the fourth embodiment is a modified version of the flexible member 30.

[0054] Figure 15 is a side view showing another modified example of the flexible member 30. Figure 16 is a perspective view showing a schematic of a portable terminal device according to a fourth embodiment using the flexible member 30 shown in Figure 15, after the flexible member 30 has been connected to the conductive member 20.

[0055] As shown in Figure 15, the flexible member 30 has a fourth curved portion 36d that curves downward and upward from the upper surface 33 of the flexible member 30. Also, as shown in Figure 16, the connecting portion 22 is L-shaped, similar to the connecting portion 22 shown in Figure 1, and has a convex portion 23 and a concave portion 24. It also has a fixing portion 50 mounted on the circuit member 10. The fixing portion 50 clamps and fixes the flexible member 30. Since the flexible member 30 is not mounted on the circuit member 10, it can move independently in the X direction.

[0056] As shown in Figure 16, the fourth curved portion 36d curves from the upper surface 33 of the flexible member 30 at the recess 24 and connects to the connecting portion 22 (conductive member 20) by contacting the base portion 21 and the convex portion 23. The flexible member 30 may also be provided with a side portion 37 to prevent the curvature from opening in the X direction. Furthermore, it is preferable that the tip of the fourth curved portion 36d is in contact with the upper surface 33 of the flexible member 30 in order to suppress variations in path length.

[0057] In this way, even if the positions of the circuit member 10, the flexible member 30, and the conductive member 20 shift significantly, the flexible member 30 can move significantly in the +X or -X direction, allowing it to follow the positional shift and ensure appropriate contact pressure with the connection part 22, thereby securing stable conductivity. As a result, deterioration of antenna performance can be further prevented, and stable conductivity between the circuit member 10 and the antenna can be ensured.

[0058] [Fifth Embodiment] Next, a fifth embodiment will be described. The portable terminal device 500 according to the fifth embodiment is a modified version of the flexible member 30.

[0059] Figure 17 is a side view showing another modified example of the flexible member 30. Figure 18 is a schematic perspective view of a portable terminal device 500 according to a fifth embodiment using the flexible member 30 shown in Figure 17, after the flexible member 30 has been connected to the conductive member 20.

[0060] As shown in Figures 17 and 18, the flexible member 30 fixes the circuit member 10 by sandwiching it in the thickness direction. The flexible member 30 can be fixed by having a pair of gripping portions 39 that sandwich the circuit member 10 in the thickness direction. The gripping portions 39 may be provided in at least one of the +Z direction and the -Z direction, or in both the +Z direction and the -Z direction. Electrical conductivity is provided from the conductive member 20 to the circuit member 10 through the gripping portions 39.

[0061] In the fifth embodiment as well, the mating portion 31, which connects and mates with the connecting portion 22, has an R portion 35 and a first curved portion 36a.

[0062] In this way, even if the positions of the circuit member 10 and the conductive member 20 are shifted further, the R portion 35 and the first curved portion 36a of the flexible member 30 remain curved, and the connection position between the gripping portion 39 and the circuit member 10 can be significantly changed in the +X or -X direction. Therefore, it is possible to follow the positional shift, appropriately adjust the contact pressure with the connection portion 22, and ensure stable conductivity through the gripping portion 39. Thus, deterioration of antenna performance can be further prevented, and stable conductivity between the circuit member 10 and the antenna can be ensured.

[0063] Based on the above, the mobile terminal devices 100, 200, 300, 400, and 500 of this disclosure can prevent deterioration of antenna performance and ensure stable conductivity between the circuit member 10 and the antenna.

[0064] Although each embodiment and example of this disclosure has been described in detail above, it will be readily apparent to those skilled in the art that many modifications are possible without substantially departing from the novelty and effects of this disclosure. Therefore, all such modifications are included within the scope of this disclosure.

[0065] For example, any term that appears at least once in the specification or drawings alongside a broader or synonymous term may be replaced with that different term anywhere in the specification or drawings. Furthermore, the configuration and operation of the mobile terminal device are not limited to those described in the embodiments and examples of this disclosure, and various modifications are possible. [Explanation of symbols]

[0066] 10 Circuit components, 20 Conductive member, 21 Base, 22 Connecting part, 23 Protruding part, 23a Tapered part, 24 Recessed part, 25 First contact part, 25b Lower surface (of the first contact part), 26 Second contact part, 26a Upper surface (of the second contact part), 27 First hooking part, 28 Second hooking part, 29 Third hooking part, 30 Flexible member, 31 Fitting part, 32 Base surface, 33 Upper surface, 34 Lower surface, 35 R part, 36a First curved part, 36b Second curved part, 36c Third curved part, 36d Fourth curved part, 37 Side part, 38 Reinforcement part, 39 Gripping part, 40, 41 contact part, 50 Fixed part, 60 gaps, 100, 200, 300, 400, 500 Mobile Terminal Devices

Claims

1. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The portable terminal device is characterized in that the flexible member is connected to the connection part in such a way that it can follow the front-to-back positional displacement of the antenna in the direction toward the circuit member, while maintaining at least one of the two or more contact points that has a greater contact pressure than the other contact points.

2. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The aforementioned connecting portion is L-shaped and has a convex portion and a concave portion. The portable terminal device is characterized in that the flexible member has a mating portion that connects to and mats with the protrusion.

3. The portable terminal device according to claim 2, characterized in that the mating portion has an R portion and a first curved portion.

4. The flexible member has a base surface perpendicular to the surface of the circuit member, an upper surface extending from the upper part of the base surface to the R portion, and a lower surface extending from the lower part of the base surface to the first curved portion. The portable terminal device according to claim 3, characterized in that the first curved portion has a contact portion that contacts the upper surface.

5. The portable terminal device according to claim 3, characterized in that there is a gap between the R portion and the first curved portion.

6. The portable terminal device according to claim 4, wherein the flexible member further has a side portion connecting the upper surface and the lower surface.

7. The portable terminal device according to claim 4, characterized in that the flexible member has a reinforcing portion that covers the base surface side of the flexible member.

8. The portable terminal device according to claim 2, characterized in that the convex portion has a tapered portion.

9. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The connecting portion has a first contact portion and a second contact portion that extend from the upper and lower parts of the antenna toward the circuit member and contact the flexible member, The flexible member has a first curved portion and a U-shaped second curved portion that is further curved from the first curved portion. A portable terminal device characterized in that the lower surface of the first contact portion and the upper surface of the second contact portion are connected to the second curved portion.

10. The portable terminal device according to claim 9, characterized in that the connecting portion further has a first hook portion on the upper surface of the second contact portion for fixing the second curved portion.

11. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The connecting portion has a first contact portion and a second contact portion that extend from the upper and lower parts of the antenna toward the circuit member and contact the flexible member, The flexible member has a first curved portion and an S-shaped third curved portion that is further curved from the first curved portion. A portable terminal device characterized in that the lower surface of the first contact portion and the upper surface of the second contact portion are connected to the third curved portion.

12. The portable terminal device according to claim 11, characterized in that the connecting portion has a second hook portion on the upper surface of the first contact portion for fixing the third curved portion.

13. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The circuit member is mounted and further comprises a fixing part for fixing the flexible member, The connecting portion has a first contact portion and a second contact portion that extend from the upper and lower parts of the antenna toward the circuit member and contact the flexible member, The flexible member has a T-shape or H-shape in which the tip portion that contacts the first contact portion and the second contact portion extends in a direction intersecting the direction of the circuit member when viewed in plan. The height between the first contact portion and the second contact portion is equal to the height of the tip portion. A mobile terminal device characterized by the following features.

14. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The aforementioned connecting portion is L-shaped and has a convex portion and a concave portion. The flexible member has a fourth curved portion that curves within the recess, The portable terminal device is characterized in that the fourth curved portion is connected to the connecting portion within the recess.

15. Circuit components and, An antenna having a connecting portion extending toward the circuit member side, A flexible member connecting the aforementioned connection part and the circuit member, Equipped with, The flexible member has two or more contact points with the connecting portion, The aforementioned antenna is positioned in a location that does not overlap with the circuit member in the vertical direction when viewed from the side, in a portable terminal device. The flexible member is fixed so as to sandwich the circuit member in the thickness direction, A portable terminal device characterized in that the mating portion, in which the flexible member connects and mates with the connecting portion, has an R portion and a first curved portion.

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