Electronic apparatus and watch

JP2025116241A5Pending Publication Date: 2025-09-25CASIO COMPUTER CO LTD
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Patent Information

Application Number
JP2025093929
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2025-09-25

AI Technical Summary

Technical Problem

Electronic devices, such as watches, face design issues due to separate device case and exterior members made of different materials, leading to mismatched colors and impaired appearance.

Method used

A cylindrical device case is enclosed by resin members, including a bezel, back cover, and decorative components, ensuring the device case's peripheral and bottom surfaces are not exposed, using additives to enhance dielectric constant and rigidity while maintaining design aesthetics.

Benefits of technology

The solution improves the appearance and functionality of electronic devices by enclosing the device case with resin members, enhancing antenna performance and impact resistance without compromising external design.

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Abstract

To improve the design of appearance.SOLUTION: A watch 100 as an electronic apparatus comprises: a cylindrical apparatus case 1 that accommodates a module 10 including an antenna 6 and various electronic components 81; and resin members such as a bezel 2 and a rear lid member 5 that are provided outside the apparatus case 1 and are formed of a plurality of parts. These resin members (bezel 2 and rear lid member 5) are configured in such a manner that at least a peripheral surface and a bottom face side of the apparatus case 1 are not exposed to the outside.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to an electronic device and a timepiece. [Background technology]

[0002] 2. Description of the Related Art Conventionally, electronic devices such as watches that include a device case that houses a module containing various electronic components are known. For example, Patent Document 1 describes a watch case formed by integrating a metallic covering member with a castable injection material disposed inside. A back cover member made of metal or resin is attached to the back side of the watch case. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 55-168890 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of a watch having an exterior member, the device case and the exterior member are separate members, and therefore typically made of different materials, and the color of the device case and the color of the exterior member are different from each other. Therefore, there is a problem that the design is impaired when the device case is exposed to the outside.

[0005] The present invention has been made to solve these problems, and has as its object to provide an electronic device and a timepiece that can improve the design of their appearance. [Means for solving the problem]

[0006] In order to solve the above problems, the electronic device according to the present invention comprises: a cylindrical device case for housing the module; a resin member provided on the outside of the device case; An electronic device comprising: the resin member is configured so that at least the peripheral surface and the bottom surface side of the device case are not exposed to the outside, and is formed of a material different from the device case; the resin members include a back cover member, a first exterior member, and a second exterior member; the first exterior member does not cover the back cover member in a direction perpendicular to a height direction of the electronic device, The second exterior member is located between the first exterior member and the back cover member. [Effects of the Invention]

[0007] According to the present invention, the design of the appearance can be improved. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of a timepiece according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing a part of the timepiece shown in FIG. 1 in cross section. [Figure 3] FIG. 2 is a cross-sectional view of the timepiece taken along line AA in FIG. [Figure 4] 2 is a cross section of the timepiece taken along line BB in FIG. 1, showing the essential parts with the module housed inside removed. FIG. [Figure 5] 2 is a cross section of the timepiece taken along line CC in FIG. 1, showing the essential parts with the module housed inside removed. FIG. [Figure 6] 6 is an enlarged cross-sectional view of a main part of a portion VI shown surrounded by a broken line in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of an electronic device and a timepiece according to the present invention will be described with reference to the drawings. In this embodiment, the electronic device will be described as a timepiece worn on the wrist of a user. It should be noted that the embodiments described below are subject to various limitations that are technically preferable for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

[0010] [composition] Fig. 1 is a front view of a timepiece according to this embodiment, and Fig. 2 is a perspective view showing a cross section of a portion of the timepiece shown in Fig. 1. Fig. 3 is a cross section of the timepiece taken along line AA in Fig. 1, Fig. 4 is a cross section of the timepiece taken along line BB in Fig. 1, and Fig. 5 is a cross section of the timepiece taken along line CC in Fig. 1. Fig. 6 is an enlarged view of part VI surrounded by a dashed dotted line in Fig. 5. Note that in the drawings other than Fig. 3, the module 10 (such as the circuit board 8 constituting the module 10) housed inside the device case 1 is not shown.

[0011] As shown in FIGS. 1 to 6, the timepiece 100 of this embodiment has a device case 1. The device case 1 of this embodiment is a cylindrical member formed in the shape of a hollow short pillar with openings at the top and bottom. The hollow part inside the device case 1 forms a storage space for storing various parts such as the module 10 of the watch 100. The device case 1 is made of a relatively hard synthetic resin, such as biomass plastic, engineering plastic, super engineering plastic, etc. Note that the material for forming the device case 1 is not limited to those exemplified here.

[0012] When the device case 1 is a resin case, various additives may be added to the resin material forming the device case 1. As will be described later, in this embodiment, the module 10 (see FIG. 3) housed inside the device case 1 includes, for example, an antenna 6 (an antenna element portion of the antenna 6). When the antenna 6 is included in the device case 1, additives that can be added to the resin material forming the device case 1 include additives for improving the antenna sensitivity, such as additives for adjusting the dielectric constant of the resin material. The type and amount of additives to be added are determined appropriately depending on the adjustment required. In order to improve the strength of the device case 1, such as water pressure resistance and impact resistance, various reinforcing agents, such as glass fiber or carbon fiber, may be added to the resin material from which the device case 1 is made.

[0013] A pair of band attachment portions 11 (see FIG. 1) to which a band 111 is attached are provided on the outer surface of the device case 1 at upper and lower positions in FIG. 1 (the 12 o'clock and 6 o'clock positions in an analog watch). 1, various operation buttons 12 (push buttons, crown, etc.) for the user to perform various input operations are provided on the left and right sides of the device case 1. That is, the operation buttons 12 are provided on the outside of resin members (bezel 2, decorative parts 23, etc.) provided on the outside of the device case 1. Therefore, even if the device case 1 is almost entirely covered with resin members, the operability of the operation buttons 12 is not impaired. In the example shown in FIG. 1, etc., push buttons are provided as operation buttons 12 on the sides of the device case 1, approximately at the 2 o'clock, 4 o'clock, 8 o'clock, 9 o'clock, and 10 o'clock positions on an analog timepiece.

[0014] The opening on the front side (the viewing side of the watch) of the device case 1 is closed by a crystal member 3. The crystal member 3 is a transparent member (cover glass) made of, for example, glass material or a resin material that is transparent to visible light. As shown in Figs. 1 to 5, the crystal member 3 is formed in a disk shape with a diameter that allows it to close the opening of the device case 1. The opening on the front side of the device case 1 in this embodiment has a step 15 (see Fig. 6 etc.) along the inner periphery. The windshield member 3 is placed on this step 15.

[0015] As will be described later, a bezel 2 serving as an exterior member is disposed on the front surface of the device case 1. As shown in FIGS. 1 to 6 , the bezel 2 is provided so as to cover at least a portion of the outer periphery of the windshield member 3, and the windshield member 3 is adhered to the device case 1 or the bezel 2. The windshield member 3 is sandwiched between the surface of the step portion 15 of the device case 1 and the bezel 2, thereby ensuring a secure fixation. Note that it is not essential that the windshield member 3 be adhered to the device case 1 or the bezel 2; it may be fixed by being sandwiched between the device case 1 and the bezel 2. In this embodiment, the windshield member 3 is fixed by adhesion or by being sandwiched between the bezel 2 and the device case 1, and is therefore configured not to depend on the strength or rigidity of the device case 1, as compared to when it is fixed by press-fitting into the device case 1, for example.

[0016] A solar panel 4 is attached to the rear surface side of the windshield member 3 (that is, the side that is disposed inside the device case 1). The solar panel 4 is a solar cell that generates electricity by receiving light, and the electricity generated by photovoltaic power generation by the solar panel 4 is stored in a secondary battery housed in the device case 1 and serves as a power source for each part of the watch 100. As shown in Figure 1, the solar panel 4 of this embodiment is a hollow, ring-shaped (annular) panel in plan view when the watch 100 is viewed from the front. The inner and outer diameters of the solar panel 4 are set appropriately depending on factors such as the amount of power that needs to be generated by the solar panel 4. However, the inside of the ring-shaped (annular) solar panel 4 becomes the display area Arv (shown by the dashed-dotted line in Figure 1) of the display unit 7, which will be described later. For this reason, the inner diameter of the solar panel 4 is set so as not to overlap the display area Arv, depending on the range that is desired to be secured as the display area Arv.

[0017] Furthermore, the solar panel 4 is made of, for example, black material, and it is undesirable from the standpoint of exterior design if it is visible through the windshield member 3. Furthermore, as mentioned above, the solar panel 4 is provided with a width according to the required amount of power generation, and is not necessarily provided all the way to the outer periphery of the windshield member 3. In areas where only the windshield member 3 is provided (i.e., areas other than the display area Arv where the display unit 7 is located below the windshield member 3 and the area where the solar panel 4 is located), the inside of the device case 1 may be visible through the transparent windshield member 3. It is not desirable from a design perspective if the inside of the device case 1 is visible.

[0018] For this reason, in this embodiment, a decoration for concealment is applied to at least a part of the windshield member 3. Specifically, a decorative portion 31 is provided on the outer periphery of the windshield member 3, and the decoration is applied to conceal the windshield member 3 so that it cannot be seen from the outside. The concealing decorative portion 31 is formed by, for example, silk printing. Note that there is no particular limitation on the method for providing the decorative portion 31. For example, the decorative portion 31 may be provided by various vapor deposition methods, plating methods, or by attaching a sticker or the like.

[0019] The concealing decorative portion 31 may be provided on at least a portion of the windshield member 3, and the specific position and range are not limited. In this embodiment, however, the concealing decorative portion 31 is provided on the back side of the windshield member 3 (the side disposed inside the device case 1) and outside the portion where the solar panel 4 is provided (i.e., on the outer periphery side of the inner periphery 41 (see FIG. 1) of the solar panel 4, which is the boundary with the display area Arv). In the illustrated example shown in FIG. 1 and other figures, the upper surface of the outer periphery edge of the windshield member 3 is chamfered to form a slope, and the shaded decorative portion 31 is provided on the outer periphery side of the inner periphery 41 of the solar panel 4, up to just before the slope. However, the decorative portion 31 may be provided over a wide range, including the sloped portion of the outer periphery edge of the windshield member 3. As a result, when the watch 100 is viewed from the front side (viewing side) of the watch 100, the display area Arv of the display unit 7, the solar panel 4, and the decorative part 31 for privacy are arranged in that order from the center of the face, preventing the inside of the device case 1 from being seen through the windshield member 3, which is a transparent material such as glass, and giving the watch a beautiful appearance.

[0020] As mentioned above, a bezel 2 is disposed on the front side of the device case 1 as a decorative exterior member. The bezel 2 is attached, for example, with screws 9 (see FIG. 1). Note that there are no particular restrictions on the method for attaching (fixing) the bezel 2, and various attachment (fixing) means other than screws 9 can be used. The bezel 2 is disposed so as to surround the outer edge of the crystal member 3 and press down on the crystal member 3 from above. The bezel 2 is formed from a flexible (elastic) resin material such as urethane, and is a member formed in a roughly annular shape when the watch 100 is viewed from the viewing side. By forming the bezel 2 from a resin material such as urethane, it is possible to reduce the weight of the bezel 2, it is easier to process than when using metal processing, and there is greater freedom in shape. Furthermore, by providing a bezel 2 made of a resin material (particularly a flexible (elastic) material such as urethane) as an exterior component of the watch 100, the bezel 2 can absorb external impacts, preventing the device case 1 from receiving direct impacts. As a result, the impact resistance of the watch 100 is improved compared to when the bezel 2 is formed from a metal material.

[0021] In this embodiment, the bezel 2 serving as an exterior member is disposed on the front surface side of the device case 1, and has a hanging portion hanging down from the front surface side so as to cover at least a part of the side surface. Specifically, the bezel 2 of this embodiment includes a first bezel 21 and a second bezel 22 held by the first bezel 21. For example, as shown in Fig. 1 etc., the first bezel 21 protrudes from other parts along the circumferential direction of the bezel 2 at four locations, such as the 3 o'clock, 6 o'clock, 9 o'clock, and 12 o'clock positions on an analog timepiece, and the first bezel 21 sandwiches the second bezel 22 in these protruding portions, thereby integrating the first bezel 21 and the second bezel 22.

[0022] The surface (top surface) of the bezel 2 is made up of four protruding portions of the first bezel 21 and an exposed portion of the second bezel 22 that is not covered by the first bezel 21 (protruding portions of the first bezel 21). 1, a part of the bezel 2 hangs down from the front surface (top surface) of the device case 1 so as to cover at least a part of the side surface of the device case 1. For example, in the examples shown in FIGS. 2 and 3 to 6, a part of the first bezel 21 wraps around to the side surface of the device case 1. The part that wraps around to the side surface of the device case 1 is the hanging part of the bezel 2.

[0023] It is not essential that the bezel 2 be composed of the first bezel 21 and the second bezel 22. The bezel 2 may be an integrated member formed so as to wrap around from the front surface to the side surface of the device case 1. In this embodiment, as described above, the operation buttons 12 are attached to multiple locations on the side surface of the device case 1, and the bezel 2 is positioned so as to avoid the operation buttons 12, but it is not essential to provide the operation buttons 12. If no operation buttons 12 are provided, the bezel 2 may be provided so as to cover the device case 1 in a continuous manner from the front surface to the side surface.

[0024] The opening on the back side of the device case 1 (the non-viewing side of the watch) is closed by a back cover member 5. As shown in Figures 2 and 3, the back cover member 5 is attached to the device case 1 via, for example, a waterproof ring 5a. By attaching the back cover member 5 via a waterproof ring 5a, the opening on the back side of the device case 1 (the non-viewing side of the watch) can be closed while ensuring waterproofness (airtightness) inside the device case 1.

[0025] The back cover member 5 is made of a relatively hard synthetic resin such as biomass plastic, engineering plastic, or super engineering plastic. In this embodiment, various reinforcing agents such as glass fiber or carbon fiber are added to the resin material forming the back cover member 5. By adding a reinforcing agent such as carbon fiber to the resin material forming the back cover member 5, the strength of the back cover member 5 is improved, preventing bending or deformation even when subjected to external pressure such as high water pressure. It also makes the back cover member less likely to break or crack even when pressure is applied, improving the water pressure resistance and impact resistance of the timepiece 100.

[0026] The back cover member 5 is a substantially dish-shaped member that includes a back cover main body 51 that covers the back side of the device case 1, and an upright portion 52 that rises from the back surface (i.e., back cover main body 51) so as to cover at least a portion of the side of the device case 1. The upright portion 52 rises from the outer peripheral edge of the back cover main body 51, but does not need to rise to the same height all around the circumference. For example, in the example shown in Figure 3, the upright portion 52 barely rises in the area where the operation buttons 12 are provided (see the left side in Figure 3), but rises to a height that is close to the bezel 2 that hangs down from the front side of the device case 1 in the area where the operation buttons 12 are not provided (see the right side in Figure 3).

[0027] Furthermore, in this embodiment, a decorative component 23 is disposed between the bezel 2 (the hanging portion of the bezel 2) that hangs down from the front surface side of the device case 1 and the back cover member 5 (the standing portion 52 of the back cover member 5). The decorative component 23 is formed in a substantially ring-like (annular) shape when viewed from the visible side in a plan view. Decorative component 23 is formed from a flexible (elastic) resin material, such as urethane, similar to that of bezel 2, and is colored a different color from bezel 2 and back cover member 5. Decorative component 23 is fixed by being sandwiched between the hanging portion of bezel 2 and the standing portion 52 of back cover member 5, and by being partially visible between bezel 2 and back cover member 5, it adds an accent color and enhances the design of the appearance of watch 100. Furthermore, by forming the components attached to the front and sides of the device case 1, such as the bezel 2 and decorative components 23, from a flexible (elastic) material such as urethane, it is possible to prevent strong direct impacts from being applied to the device case 1 enclosed by these components. This gives the watch 100 a structure with excellent impact resistance.

[0028] In this embodiment, the bezel 2 and decorative parts 23 made of urethane or the like, and the back cover member 5 made of a highly rigid resin material are all resin members provided on the outside of the device case 1. The back cover member 5 covers part of the side surface from the rear side of the device case 1, and is integrated with the bezel 2 provided on the front side (viewing side) of the device case 1 via the annular decorative part 23, so that the structure almost completely covers the periphery of the device case 1 except for the part where the windshield member 3 is provided. As a result, the resin member is configured so that at least the peripheral surface (side surface) and bottom side of the device case 1 are not exposed to the outside. The resin member surrounding the device case 1 is made up of multiple parts: a bezel 2, decorative parts 23, and a back cover member 5. The decorative component 23 may be a single component integrally formed with the bezel 2. Furthermore, the components from the back cover member 5 to the bezel 2 may be a single component integrally formed, in which case the resin components surrounding the device case 1 can be made into a seamless, integrated structure, thereby achieving higher levels of water resistance, water pressure resistance, impact resistance, and the like.

[0029] As described above, a module 10 (see FIG. 3) including a clock movement including various motors (not shown) is housed inside the hollow device case 1. In this embodiment, the module 10 includes, for example, an antenna 6, a display unit 7, a circuit board 8, and the like. The display unit 7 is, for example, a liquid crystal panel unit equipped with a liquid crystal display (LCD). In this embodiment, the display unit 7 displays the time, date, and various other information within the display area Arv. The display unit 7 is not limited to a liquid crystal panel unit. For example, it may be configured with an organic electroluminescence display or other flat display. Furthermore, the display unit 7 is not limited to a digital display, and may be an analog display with hands or a hybrid digital-analog display. Furthermore, the circuit board 8 has various electronic components 81 (see FIG. 3) mounted on the front or back surface thereof.

[0030] The antenna 6 in this embodiment is, for example, a GPS antenna capable of receiving GNSS (GPS / GLONASS / QZSS / SBAS) signals transmitted from a GPS satellite (which includes multiple types such as GLONASS in addition to GPS, but will be simply referred to as "GPS" below). In this embodiment, an inward flange portion 16 (see Figure 6, etc.) is formed near the opening on the front side of the equipment case 1, extending from the inner surface of the equipment case 1 toward the inside of the case, and the antenna 6 (the antenna element portion of the antenna 6) is arranged on the flange portion 16.

[0031] Desired frequency bands for a GPS antenna include the L1 band (near 1.6 GHz) and the L5 band (near 1.2 GHz), and it is desirable for the antenna 6 to have high antenna performance in these frequency bands (especially antenna gain corresponding to right-handed polarized waves). However, since the antenna 6 of this embodiment is housed within the device case 1, the size and length of the antenna 6 (the antenna element portion of the antenna 6) are small, and the electrical distance (electrical length) is short. For this reason, the frequencies that are easily received and easily emitted by the antenna 6 are higher than the desired frequency bands (i.e., frequency bands such as the L1 band (near 1.6 GHz) and the L5 band (near 1.2 GHz) in which GNSS (GPS) signals are transmitted, as described above).

[0032] In this regard, the device case 1 in which the antenna 6 (the antenna element portion of the antenna 6) is housed is made of a resin material, which is a dielectric, and it has been confirmed that when the antenna 6 is surrounded by a dielectric, the wavelength of the radio waves shortens according to the relative dielectric constant of the dielectric. In other words, the effect of "wavelength shortening of radio waves" has been observed, in which the original length of one period (length of one wavelength) of the wavelength itself shortens within the dielectric. For this reason, as described above, it is preferable to add a substance to increase the relative dielectric constant to the device case 1 of this embodiment as an additive. This effectively achieves the effect of "shortening the wavelength of radio waves," and even if the antenna 6 (the antenna element portion of the antenna 6) is miniaturized for storage within the device case 1, it can resonate in a low frequency band (a desired frequency band such as the aforementioned L1 band or L5 band).

[0033] [Effect] As described above, in this embodiment, the outside of the device case 1, which houses the module 10 including the antenna 6, is surrounded by resin components such as the bezel 2, the back cover member 5, and the decorative components 23, so that at least the peripheral and bottom surfaces of the device case 1 are not exposed to the outside. In this embodiment, an additive that increases the relative dielectric constant is added to the resin material forming the device case 1 so that the antenna performance (antenna gain) of the antenna 6 in the desired frequency band (for example, the L1 band, L5 band, etc. for a GPS antenna) is improved. Further, in some cases, a reinforcing agent such as glass fiber or carbon fiber is added to the device case 1 to increase its rigidity.

[0034] If an additive is added to the resin material forming the device case 1, the color of the device case 1 will be affected by the color of the additive. Furthermore, for example, carbon fiber is black, and if carbon fiber is added to the resin material forming the device case to improve rigidity, the color of the device case 1 will also be affected by the color of the carbon fiber.

[0035] In this regard, in this embodiment, as described above, resin members such as the bezel 2 and back cover member 5 are provided to encase the peripheral and bottom surfaces of the device case 1. Therefore, the device case 1 itself is not exposed to the outside, and there is no need to consider the external design. This allows the device case 1 to be formed using functionally desirable materials (materials containing various additives, reinforcing agents, etc.).

[0036] [effect] As described above, the watch 100, which is an electronic device in this embodiment, comprises a cylindrical device case 1 that houses the module 10 and a resin member provided on the outside of the device case 1, and the resin member is configured to prevent at least the peripheral surface and bottom side of the device case 1 from being exposed to the outside. As a result, even if the degree of freedom in the appearance of the device case 1, such as its color, is limited by adding an additive to the resin material forming the device case 1 to increase the relative dielectric constant or by adding a reinforcing agent such as carbon fiber to increase rigidity, the device case 1 is not visible from the outside. Therefore, the device case 1 can be formed from a functionally preferable material without considering the viewpoint of the external design. Furthermore, since no design considerations are required for the device case 1, there is no need to apply various types of painting, plating, vapor deposition, etc. to the device case 1, and it is possible to prevent the antenna characteristics that have been carefully adjusted from being distorted later due to subsequent processes such as painting.

[0037] In this embodiment, the resin member is made up of a plurality of parts such as the bezel 2, the back cover member 5, and the decorative parts 23. Therefore, manufacturing and assembly are relatively easy, and the device case 1 can be easily enclosed in a resin member.

[0038] In this embodiment, the resin member includes a back cover member 5, which has a back cover main body 51 that covers the back side of the device case 1, and has an upright portion 52 that rises from the back surface so as to cover at least a portion of the side surface. In this way, the back cover member 5 covers not only the back (bottom) side of the device case 1 but also at least a portion of the side (periphery) so that the number of seams can be reduced and the back cover member 5 can encase the device case 1 from the back (bottom) side. This prevents gaps from forming and improves waterproofing, as well as achieving a configuration with excellent impact resistance and high rigidity.

[0039] In this embodiment, the material forming the back cover member 5 contains a resin to which a reinforcing agent such as carbon fiber or glass fiber has been added. Therefore, even when high water pressure is applied to the timepiece 100, the back cover member 5 is unlikely to bend or crack, and is highly resistant to water pressure, less likely to break, and has excellent rigidity.

[0040] In this embodiment, the resin member includes a bezel 2, which is an exterior decorative member, and the bezel 2 is arranged on the front side of the device case 1 (around the opening on the front side in this embodiment) and has a hanging portion that hangs down from the front side so as to cover at least a portion of the side surface. In this way, the bezel 2 covers not only the front side of the device case 1 but also at least a portion of the side surface (circumferential surface), allowing the bezel 2 to encase a wide area of the device case 1. The bezel 2 of this embodiment is made of a flexible (elastic) material such as urethane, and therefore has excellent impact resistance, allowing more effective protection of the device case 1 and the module 10, which includes the display unit 7 and various electronic components 81 housed within the device case 1.

[0041] In this embodiment, the front surface of the device case 1 is closed by a windshield member 3, and at least a part of the windshield member 3 is provided with a decorative portion 31 for hiding the view. This makes it possible to prevent the device case 1 and various structures inside the device case 1 from being seen through the windshield member 3, which is a transparent member, and to achieve an excellent exterior design.

[0042] In this embodiment, the module 10 housed in the device case 1 includes an antenna 6 . In order to realize an antenna 6 with high antenna performance (antenna gain) in a desired frequency band (for example, the L1 band or L5 band for a GPS antenna), it is preferable to increase the relative dielectric constant of the device case 1 disposed around the antenna 6. However, additives for increasing the relative dielectric constant are often white, and if an additive is added to the resin material that forms the device case 1, the color of the device case 1 will be affected by the color of the additive. Even in such cases, the device case 1 is enclosed in a resin member so that it is not visible from the outside, allowing the antenna 6 to provide excellent antenna performance in the desired frequency band without compromising the external design of the electronic device such as the watch 100. This makes it possible to obtain time information, etc. contained in GPS signals, and to perform accurate time adjustments, etc.

[0043] In the present application, the resin members (bezel 2, back cover member 5) provided on the outside of the device case 1 are configured so that at least the peripheral surface and bottom side of the device case 1 are not exposed to the outside. This makes it possible to improve both the strength of the device case 1 and the design of its appearance. Specifically, to protect the module 10 and other components housed inside the device case 1, various reinforcing agents such as glass fiber and carbon fiber are added to the resin forming the device case 1 to improve its strength, such as water pressure resistance and impact resistance, but the carbon fiber is black. Furthermore, to improve the sensitivity of the antenna 6 mounted inside the device case 1, additives that increase the relative dielectric constant may be added to the resin forming the device case 1. However, because these additives for increasing the relative dielectric constant are sometimes white, there is a problem in that the design of the device case 1 is impaired when exposed to the exterior. These problems can be solved by covering the device case 1 with a resin member. In other words, by covering the outer side and bottom surfaces of the device case 1 with other members, it is possible to balance the strength of the device case 1 and its impact on internal electronic components such as the antenna 6 with the exterior design of the watch 100.

[0044] Furthermore, when the watch 100 has the configuration of the electronic device of this embodiment, by surrounding the device case 1 with resin components, it is possible to achieve an excellent external design for the watch 100 while still having a configuration that can enhance the functionality of the components housed inside the device case 1, such as the antenna 6, without having to worry about the external design of the device case 1 itself.

[0045] [Variations] Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to these embodiments and that various modifications are possible without departing from the spirit of the present invention.

[0046] For example, in this embodiment, the outside of the device case 1 is surrounded by a resin component consisting of multiple parts such as a bezel 2, a back cover member 5, and decorative parts 23, so that the device case 1 is not exposed to the outside, but the resin component is not limited to being composed of multiple parts. For example, the upright portion 52 of the back cover member 5 may be provided so as to surround the entire periphery of the device case 1, including the front surface side of the device case 1. In this case, the back cover member 5 alone constitutes a resin member that surrounds the outside of the device case 1. In this case, there is no need to provide a bezel 2 or the like as a resin member, so the number of parts can be reduced and the configuration can be simplified.

[0047] Furthermore, the device case 1 is not limited to a cylindrical shape. For example, it may have an irregular shape corresponding to the module or the like stored inside, and may have a shape that differs from the appearance of the watch 100. Even in this case, by encasing the device case 1 in a resin material and preventing it from being exposed to the outside, it is possible to achieve an excellent appearance as a watch.

[0048] Furthermore, for example, this embodiment exemplifies a case where the electronic device is a watch 100, and a structure in which the device case 1 is surrounded by resin members such as a bezel 2 and a back cover member 5 is installed on the watch 100, but the electronic devices to which the structure in which the device case 1 is surrounded by resin members can be applied are not limited to this. For example, it can be widely applied to electronic devices that display various data, such as wearable devices such as various smart watches and sports watches, heart rate monitors and blood pressure monitors that display biometric information such as time, heart rate and blood flow information, and devices that display environmental information such as temperature and air pressure.

[0049] Although several embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. [Explanation of symbols]

[0050] 1 Equipment case 2 bezel 23 Decorative parts 3 Windshield materials 31 Decoration Department 4. Solar panels 5 Back cover material 51 Back cover body 52 Standing section 6 Antennas 7 Display section 8 Circuit Board 100 Watches (electronic devices)

Claims

1. a cylindrical device case for housing the module; a resin member provided on the outside of the device case; Equipped with the device case is formed from a resin material to which an additive that increases the relative dielectric constant is added, The resin member is configured so that at least the peripheral surface and the bottom surface of the device case are not exposed to the outside, and is formed of a material different from that of the device case. An electronic device characterized by:

2. The resin member includes a back cover member, a first exterior member, and a second exterior member; the back cover member covers the back side of the device case and has an upstanding portion that rises from the back surface so as to cover at least a portion of the side surface, the first exterior member does not cover the back cover member in a direction perpendicular to a height direction of the electronic device, the second exterior member is located between the first exterior member and the back cover member, and at least a portion of the side surface is covered by the erected portion; 2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

3. One end side of the second exterior member is located near the contact portion between the bottom surface of the device case and the back cover member, The standing portion covers a side surface of the second exterior member on the one end side.

3. The electronic device according to claim 2.

4. The resin member is made up of multiple parts including a bezel and a back cover member, The bezel is made of a material that is more flexible than the back cover member.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

5. The material forming the back cover member includes a resin to which carbon fiber is added.

4. The electronic device according to claim 3.

6. The resin member includes an exterior member for decoration, the decorative exterior member is disposed on the front surface side of the device case and has a hanging portion hanging down from the front surface side so as to cover at least a part of the side surface, 2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

7. The front side of the device case is closed by a windshield member, At least a portion of the windshield member is decorated to provide privacy.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

8. The module includes an antenna.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

9. An operation button for accepting input operations is provided on the outer side of the resin member.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

10. An electronic device comprising: an electronic device according to any one of claims 1 to 9; A watch characterized by