JP2018072127A - Portable electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable electronic apparatus which has an antifogging effect of suppressing fogging on the inner surface of a substrate.SOLUTION: A portable electronic apparatus 100 includes: a case 10; a display unit 30 in the case 10; a substrate 20 covering the opening of the case 10 so that the substrate overlaps with the display unit 30 in a plane view; and a ring-shaped seal member 50 located along the outer edge of the display unit 30 to seal the space between the substrate 20 and the display unit 30.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a portable electronic device.

  In recent years, with the improvement of sensing technology, many types of wristwatch-type activity meters have been commercialized by various companies as examples of portable electronic devices. For example, Patent Document 1 discloses an electronic timepiece equipped with a digital display unit, such as a wristwatch-type activity meter, attached to a part such as a wrist (subject) by a band or the like.

JP 2005-98990 A

  However, when the transparent substrate that covers the active meter display is rapidly cooled due to changes in the external environment, moisture (moisture) in the air is condensed as the temperature of the transparent substrate decreases, causing condensation on the inner surface of the transparent substrate. (Cloudy) may occur.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

[Application Example 1]
The portable electronic device according to this application example includes a case, a display unit accommodated in the case, a substrate that closes the opening of the case so as to overlap the display unit in plan view, An annular seal member disposed along the outer edge of the display unit so as to seal a space between the substrate and the display unit.

  According to the portable electronic device of this application example, since the space formed by the substrate and the display unit can be sealed by the sealing member, the temperature difference between the external temperature and the temperature inside the case is determined by the sealed space. Can be relaxed. Therefore, it is possible to reduce the occurrence of cloudiness due to dew condensation caused by fluctuations in the external temperature on the substrate.

[Application Example 2]
The portable electronic device according to the application example includes a parting plate disposed along an outer edge of the display unit between the substrate and the display unit, and the annular seal member is a first annular member And the second annular member, wherein the first annular member is disposed between the substrate and the surface of the parting plate on the substrate side, and the second annular member includes the display unit and the second annular member. It arrange | positions between the surfaces by the side of the said display part of a parting board.

  According to the portable electronic device of this application example, the space formed by the substrate, the parting plate arranged along the outer edge of the display unit, and the display unit is annular between the substrate and the parting plate. Since the first annular member, which is a seal member, is disposed and the second annular member, which is a seal member, is disposed between the parting plate and the display unit and is sealed, the external temperature and the temperature inside the case are The temperature difference can be mitigated through a sealed space. Therefore, it is possible to reduce the occurrence of cloudiness due to dew condensation caused by fluctuations in the external temperature on the substrate.

[Application Example 3]
In the portable electronic device according to the application example described above, the annular seal member is an elastic member having water resistance.

  According to the portable electronic device of this application example, the annular seal member is formed of an elastic member having water resistance, thereby preventing moisture from entering the space formed by the substrate and the display unit. It is possible to reduce the occurrence of clouding due to condensation on the substrate due to temperature fluctuations.

[Application Example 4]
In the portable electronic device according to the application example, a cross-sectional shape of the annular seal member is a circle or an ellipse.

  According to the portable electronic device of this application example, the cross-sectional shape of the annular seal member is circular or elliptical, so that the seal member is between the seal member and the substrate and between the seal member and the display unit. The degree of adhesion between the two can be increased, and the airtightness of the space formed by the substrate and the display portion can be improved.

[Application Example 5]
In the portable electronic device according to the application example described above, a recess is provided on at least one of a surface of the annular seal member that contacts the substrate and a surface that contacts the display unit.

  According to the portable electronic device of this application example, the seal member is provided with a recess on at least one of the surface of the annular seal member that contacts the substrate and the surface that contacts the display unit. The degree of adhesion between the seal member and the substrate and between the seal member and the display unit can be increased, and the airtightness of the space formed by the substrate and the display unit can be improved.

[Application Example 6]
In the portable electronic device according to the application example described above, a cross-sectional shape of the annular seal member is a trapezoid.

  According to the portable electronic device of this application example, the cross-sectional shape of the annular seal member is formed in a trapezoidal shape, thereby increasing the degree of adhesion by the seal member and improving the airtightness of the space constituted by the substrate and the display unit. Can be made.

[Application Example 7]
In the portable electronic device according to the application example, the annular seal member is a parting plate.

  According to the portable electronic device of this application example, the design property can be improved by forming the annular seal member with a parting plate and applying a color tone different from that of the case.

[Application Example 8]
In the portable electronic device according to the application example described above, a recess is provided in at least one of the substrate and the display unit in contact with the annular seal member.

  According to the portable electronic device of this application example, the annular seal member can be stabilized by providing a recess in the contacted portion of either the substrate or the display unit that is in contact with the annular seal member. Thus, the adhesion to the substrate or the display portion can be improved.

[Application Example 9]
In the portable electronic device according to the application example, the space is filled with an inert gas.

  According to the portable electronic device of this application example, the humidity (moisture) of the sealed space is low by filling the space constituted by the substrate, the sealing member, and the display unit with an inert gas such as nitrogen, helium, and argon. Can be configured to state. Therefore, it is possible to reduce the occurrence of cloudiness due to dew condensation caused by fluctuations in the external temperature on the substrate.

[Application Example 10]
In the portable electronic device according to the application example, the space has a decompressed atmosphere.

  According to the portable electronic device of this application example, the humidity of the sealed space 60 (by the vacuum (high vacuum state)) of the space formed by the substrate, the seal member, and the display unit is reduced. (Moisture) can be configured in a low state. Therefore, it is possible to reduce the occurrence of cloudiness due to dew condensation caused by fluctuations in the external temperature on the substrate.

The front side perspective view of the wrist apparatus which concerns on Embodiment 1 of a portable electronic device. FIG. 3 is a plan view of the wrist device according to the first embodiment. FIG. 3 is an exploded perspective view illustrating a schematic configuration of the wrist device according to the first embodiment. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2 illustrating a schematic configuration of the wrist device according to the first embodiment. The elements on larger scale of FIG. The partial enlarged view which shows the modification 1 of a cyclic | annular sealing member and corresponds to FIG. The partial enlarged view which shows the modification 2 of a cyclic | annular sealing member and corresponds to FIG. The partial enlarged view which shows the modification 3 of a cyclic | annular sealing member and corresponds to FIG. FIG. 6 is a partial enlarged view corresponding to FIG. 5, showing a fourth modification of the annular seal member. FIG. 6 is a partial enlarged view corresponding to FIG. 5, showing a modified example 5 of the annular seal member. FIG. 6 is a partial enlarged view corresponding to FIG. 5, showing Modification 6 of the annular seal member. FIG. 6 is a partially enlarged view showing a schematic configuration of a wrist device according to Embodiment 2 and corresponding to FIG. 5. FIG. 9 is a partial plan view showing a display example on a parting board according to the second embodiment. FIG. 6 is a plan view of a wrist device according to a second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the scale of each layer and each member is made different from the actual scale so that each layer and each member can be recognized.

(Embodiment 1)
A wrist device according to the first embodiment in a portable electronic device according to the present invention will be described with reference to FIGS. 1, 2, and 3. FIG. 1 is a front perspective view of a wrist device 1000 according to the first embodiment. FIG. 2 is a plan view of the wrist device 1000 according to the first embodiment. FIG. 3 is an exploded perspective view illustrating a schematic configuration of the wrist device 1000 according to the first embodiment. In the present specification, in the first embodiment, the second embodiment, and the modifications, for convenience of explanation, the board side of the wrist device 1000 is the front side (front side), and the side opposite to the board (the side that comes into contact with the user when worn) ) May be described as the back (back side). The wrist device 1000 according to the first embodiment is equipped with a runner's watch, a multi-sports runner's watch such as a duathlon and a triathlon, and a barometric pressure sensor and a direction sensor for trekking and mountain climbing that can display altitude and direction. It can be widely applied to re-stable devices such as suitable watches.

  As shown in FIGS. 1, 2, and 3, a wrist device 1000 as an example of a portable electronic device (wearable electronic device) is attached to a given part (for example, wrist) of a user (wearer). It is possible to detect the user's altitude information, direction information, and the like. The wrist device 1000 is attached to the user to detect the altitude information, the azimuth information, etc., the device main body 100, the first band unit 200 attached to the device main body 100 for attaching the device main body 100 to the user, and A second band portion 201 is included. The wrist device 1000 can be provided with a function of detecting biological information such as pulse wave information and a function of acquiring time information in addition to the user's altitude information and direction information.

  In the device main body 100, a bottom case 12 is arranged on the user wearing side, and a top case 10 as a case having an opening 90 (shown in FIG. 3) opened on the front side is arranged on the side opposite to the user wearing side. Has been. An electronic component such as an electronic circuit, a battery, and various sensors is accommodated in the device main body 100 constituted by the top case 10 and the bottom case 12. The opening 90 located on the front side (top case 10) of the device main body 100 is provided with a windshield plate (a glass plate in this example) 20 as a transparent substrate so as to overlap a display unit described later in plan view. Yes. The windshield 20 functions as a top plate portion (outer wall) that protects the internal space. The bezel 11 is provided so as to surround the outer periphery of the windshield 20, and the windshield 20 and the bezel 11 are integrated. The bezel 11 can be provided with characters, symbols, and the like that are visible from the front side. Further, on the bottom case 12 side of the windshield 20, a display unit 30 constituted by a liquid crystal display (LCD) or the like, and an annular seal member 50 for sealing a space sandwiched between the windshield 20 and the display unit 30. And is housed. A plurality of operation buttons 40, 41, 42, 43 are provided on the front side (top case 10) of the device main body 100, and a circuit board 84 described later is operated.

  The device main body 100 has a configuration in which the user can view the display of the display unit 30 via the windshield 20 and displays various information such as detected elevation information, azimuth information, and time information on the display unit 30. The display can be viewed by the user from the front side of the device main body 100. Further, a pair of band mounting portions (not shown) which are connecting portions to the first band portion 200 and the second band portion 201 are provided on both sides of the bottom case 12.

  Next, a cross-sectional structure of the device main body 100 of the wrist device 1000 according to the first embodiment will be described with reference to FIGS. 4 and 5. 4 is a cross-sectional view taken along the line AA of FIG. 2 showing a schematic configuration of the portable electronic device according to the first embodiment. FIG. 5 is a partially enlarged view of FIG. 4 showing a schematic configuration of the portable electronic device according to the first embodiment.

  As shown in FIG. 4, the device main body 100 is provided with a device housing portion 81 that is a sealed space surrounded by the top case 10, the bottom case 12, and the windshield 20 that closes the opening 90 of the top case 10. It has been. In the device housing portion 81, electronic components such as a circuit board 84, a pressure sensor 82 as an example of a sensor, a secondary battery 85, and a vibration portion 86, which are component parts constituting the device body 100, are housed. . However, the apparatus main body 100 is not limited to the structure shown in FIG. 4, For example, you may add a GPS (Global Positioning System) antenna, an electronic component, etc. In addition, a display unit 30 is disposed on the back side of the windshield plate 20, and a seal member 50 is sandwiched between the windshield plate 20 and the display unit 30.

  As shown in FIG. 5, the device main body 100 is configured such that the display unit 30 is accommodated on the opening 90 side of the protrusion 10 a that protrudes inside the top case 10, and the outer peripheral part 30 a of the display unit 30 is the top case. 10 with a gap from the inner peripheral surface 10b. An inner surface 20a of the rear surface of the windshield 20 is arranged to face a display surface 30b on which various information of the display unit 30 is displayed. An annular seal member 50 is disposed along the outer edge of the display unit 30 between the step unit 20 b provided on the windshield 20 and the step unit 30 c provided on the display unit 30. That is, a sealed space 60 is formed in which the annular seal member 50 is sandwiched between the windshield 20 and the display unit 30 and sealed. The sealed space 60 is configured so as to be included in the device housing portion 81, and the sealed space 60 is disposed between the windshield plate 20 and the device housing portion 81 so that the inside air of the device housing portion 81 does not touch the windshield plate 20. It is configured as follows.

  Further, at least one portion of the windshield 20 and the display unit 30 with which the annular seal member 50 is in contact is provided with a step 20b and a step 30c as depressions. The seal member 50 is housed in a housing portion 100 a configured by the step portion 20 b of the windshield 20, the step portion 30 c of the display unit 30, and the inner peripheral surface 10 b of the top case 10.

  A cross-sectional shape before the seal member 50 is assembled is indicated by a two-dot chain line. The seal member 50 accommodated in the accommodating portion 100a has at least a cross-sectional shape that is pressed between the step portion 20b and the step portion 30c. The cross-sectional shape before the seal member 50 is assembled is a circle or an ellipse, and the seal member 50 is elastically deformed by being pressed by the stepped portion 20b and the stepped portion 30c by being incorporated in the accommodating portion 100a. Then, the sealing member 50 is brought into close contact with the stepped portion 30c and the stepped portion 20b by compressive elastic force, whereby the space sandwiched between the windshield 20 and the display portion 30 is sealed and the sealed space 60 is formed.

  Next, the condensing action of moisture generated in the windshield 20 due to a change in the external temperature will be described. When the temperature around the device body 100 is the external temperature T1, the temperature inside the sealed space 60 is the space temperature T2, and the temperature inside the device housing portion 81 is the housing temperature T3, the external environment changes by providing the sealed space 60. Even if the external temperature T1 decreases due to the windshield 20 being rapidly cooled, the sealed space 60 provided on the back side of the windshield 20 can alleviate the temperature difference between the external temperature T1 and the accommodation temperature T3. Generation | occurrence | production of the condensation effect | action of the water | moisture content which arises in the inner surface 20a of the windshield 20 can be reduced.

  More specifically, when the external temperature T1 is lower than the wearer's body temperature, the relationship between the external temperature T1, the space temperature T2 inside the sealed space 60, and the accommodation temperature T3 is a relationship of T1 <T2 <T3. It becomes. When the external temperature T1 rapidly decreases in a state where this relationship holds, the temperature difference between the external temperature T1 and the space temperature T2 in contact with the inner surface 20a of the windshield 20 that has been quenched by the external temperature T1 is small. In addition, it is possible to reduce the occurrence of moisture condensation on the inner surface 20a. On the other hand, when the sealed space 60 is not provided, the inside air heated by the body temperature of the device accommodating portion 81 is in direct contact with the inner surface 20a. The plate 20 is rapidly cooled, the temperature difference from the housing temperature T3 with which the inner surface 20a contacts is increased, and moisture inside the device housing portion 81 is condensed on the inner surface 20a to cause dew condensation.

  The top case 10 is located on the outer edge side of the top case 10 and has a circumferential recess 10c that opens toward the front side. The concave portion 10c includes a first wall portion 10d provided on the outer peripheral side and a second wall portion 10e provided on the inner peripheral side. At least a part of the bezel 11 is inserted and fixed in the recess 10c. In this manner, by inserting the bezel 11 into the recess 10c, the bezel 11 can be easily aligned with the top case 10.

  The bezel 11 has a flange portion 11a that projects to the windshield 20 side. On the inner peripheral surface (inner surface) side of the flange portion 11 a of the bezel 11, the windshield 20 is arranged so as to be aligned with the bezel 11. In addition, the collar part 11a may be contact | abutted to the top part of the 2nd wall part 10e of the top case 10 inner peripheral side. When the collar part 11a is contact | abutted by the top part of the 2nd wall part 10e of the top case 10, a deformation | transformation of the collar part 11a can be reduced.

  The windshield 20 is disposed so as to contact the inner surface of the flange portion 11 a of the bezel 11. The windshield 20 is held by the bezel 11 so as not to drop from the device main body 100 (top case 10).

  As a material used for the top case 10 and the bottom case 12, it is only necessary to be able to house electronic components in the device housing part 81, and it is a plastic material that has good productivity and can easily form a holding structure for various sensors. Is preferably used. As a material used for the bezel 11, for example, a surface of a stainless steel material or a brass (brass) material can be formed with a plating process. The material used for the windshield 20 is not limited to a glass plate, but is a transparent member capable of browsing the display unit 30, a top case 10 such as a liquid crystal display (LCD) constituting the display unit 30, a bottom case 12, Any material other than glass, such as a transparent plastic, can be used as long as it is a member having a strength capable of protecting the structure housed inside.

  The material used for the seal member 50 may be an elastic member having water resistance, and NBR (nitrile rubber) or IIR (isobutylene isoprene rubber) used as a seal member for portable electronic devices is generally used. preferable.

  The liquid crystal display (LCD) constituting the display unit 30 has, for example, altitude information using an atmospheric pressure sensor, temperature information using an air temperature sensor, position information using a GPS or geomagnetic sensor, according to various detection modes, Movement information such as a movement amount using an amount of movement, an angular velocity sensor, an acceleration sensor, or the like, or time information such as the current time is displayed. This display can be viewed (viewed) by the user via the windshield 20.

  By assembling the sealed space 60 in an environment where the humidity (moisture) is controlled to be low, the sealed space 60 can be configured to have a low humidity (moisture). In addition, by assembling the sealed space 60 in an environment filled with an inert gas such as nitrogen, helium, or argon, the sealed space 60 is filled with the inert gas so that the humidity (moisture) is low. Also good. Furthermore, the sealed space 60 can be configured to have a low humidity (moisture) by configuring the sealed space 60 in a decompressed atmosphere. By making the sealed space 60 low in this manner, even if the windshield 20 is rapidly cooled, the humidity of the sealed space 60 in contact with the inner surface 20a is low, so that the occurrence of moisture condensation can be reduced.

  A moisture absorbing member 65 may be disposed in the sealed space 60 constituted by the windshield 20 and the display unit 30. The hygroscopic member 65 is made of, for example, a material containing polyacrylate fiber, and can absorb moisture (humidity). As a preferred example in which the hygroscopic member 65 is arranged, as shown in FIG. 5, the hygroscopic member 65 formed in an annular shape is fixed to the display surface 30b using an adhesive or the like. By arranging in this way, moisture (moisture) inside the sealed space 60 is absorbed to reduce the humidity, and even if the windshield 20 is rapidly cooled, the occurrence of the condensation action due to the moisture sealed in the sealed space 60 is reduced. can do.

  As described above, by forming the sealed space 60 by sealing the space formed by the windshield 20 and the display unit 30 in the device accommodating portion 81 by elastically deforming the annular seal member 50, The temperature difference between the external temperature T1 and the housing temperature T3 can be relaxed by the sealed space 60. And by reducing the temperature difference between the external temperature T1 and the space temperature T2, even if the external temperature T1 changes suddenly, it prevents the condensation of moisture generated on the inner surface 20a of the windshield 20 and reduces the occurrence of cloudiness. can do.

  Furthermore, the windshield 20 is rapidly cooled by performing the assembly work of the sealed space 60 in a low humidity environment or by disposing the moisture absorbing member 65 in the sealed space 60 to make the sealed space 60 a low humidity environment. However, it is possible to effectively prevent moisture condensation and reduce the occurrence of condensation.

(Modification 1)
As a modification of the device main body 100 according to the first embodiment, a device main body 101 according to Modification 1 will be described with reference to FIG. FIG. 6 is a partially enlarged view of the device main body 101. Note that the device main body 101 according to this modification is different from the device main body 100 according to the first embodiment in the cross-sectional shape of the seal member 51. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the device main body 101 according to the first modification, a space formed by the windshield 20 and the display unit 30 is sealed with a seal member 51 to form a sealed space 60. The seal member 51 is accommodated in an accommodating portion 101 a configured by the inner peripheral surface 10 b of the top case 10, the step portion 20 b of the windshield 20, and the step portion 30 c of the display unit 30. The cross-sectional shape of the annular seal member 51 is an oval shape or a rectangular shape whose longitudinal direction is formed in parallel with the display surface 30b. FIG. 6 illustrates an example in which the sealing member 51 has a rectangular cross-sectional shape.

  A shape before the seal member 51 is assembled into the case is indicated by a two-dot chain line. The seal member 51 accommodated in the accommodating portion 101a has at least a cross-sectional shape that is pressed between the step portion 20b and the step portion 30c. When the sealing member 51 is accommodated in the accommodating portion 101a, the sealing member 51 is pressed and elastically deformed by the step portion 20b and the step portion 30c.

  The seal member 51 is formed in an oval shape or a rectangle, and the contact area between the step portion 20b and the step portion 30c and the seal member 51 is widened by arranging the longitudinal direction of the oval or rectangle in parallel with the display surface 30b. be able to.

  With the above configuration, the same effect as that of the first embodiment can be obtained.

(Modification 2)
As a modification of the device main body 100 according to the first embodiment, a device main body 102 according to Modification 2 will be described with reference to FIG. FIG. 7 is a partially enlarged view of the device main body 102. The device main body 102 according to the present modification is different from the device main body 100 according to the first embodiment in the cross-sectional shape of the seal member 52. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The cross-sectional shape of the seal member 52 according to the modified example 2 is that the concave portion 52a is provided in the center of the back side surface that contacts the step 30c of the display unit 30, and the front side surface that contacts the step 20b of the windshield 20 is provided. A recess 52b is provided at the center. The recess 52a is formed over the entire circumference of the back side surface in contact with the stepped portion 30c, and the recess 52b is formed over the entire circumference of the front side surface in contact with the stepped portion 20b. Moreover, in this modification, although the recess was provided in the front side and back side of the sealing member 52, it is not restricted to this, You may provide a recess in any one of a front side or a back side. The seal member 52 is accommodated in an accommodating portion 102a configured by the inner peripheral surface 10b, the stepped portion 20b, and the stepped portion 30c.

  A shape before the seal member 52 is incorporated into the case is indicated by a two-dot chain line. The seal member 52 accommodated in the accommodating portion 102a has at least a cross-sectional shape that is pressed between the step portion 20b and the step portion 30c. Since the recesses 52a and 52b are provided by accommodating the seal member 52 in the accommodating portion 102a, the corners of the seal member 52 are pressed and elastically deformed by the step portions 20b and 30c. When the corner portion of the seal member 52 is elastically deformed, a compression elastic force is intensively generated at the corner portion, and the adhesion of the seal member 52 can be enhanced.

  With the above configuration, the same effect as that of the first embodiment can be obtained.

(Modification 3)
As a modification of the device main body 100 according to the first embodiment, a device main body 103 according to Modification 3 will be described with reference to FIG. FIG. 8 is a partially enlarged view of the device main body 103. Note that the device main body 103 according to this modification is different from the device main body 100 according to the first embodiment in the cross-sectional shape of the seal member 53. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As for the cross-sectional shape of the seal member 53 according to the modification 3, the concave portion 53a is provided on the surface that contacts the step portion 30c of the display unit 30, and the concave portion 53b is provided on the surface that contacts the step portion 20b of the windshield plate 20. ing. The outer peripheral surface of the seal member 53 is opposed to the inner peripheral surface 10b of the top case 10, the concave portion 53d is provided on the outer peripheral surface over the entire circumference, and the concave portion 53c is provided on the inner peripheral surface opposite to the outer peripheral surface. It is provided over. The seal member 53 is accommodated in an accommodating portion 103a configured by the inner peripheral surface 10b, the stepped portion 20b, and the stepped portion 30c.

  A shape before the seal member 53 is assembled into the case is indicated by a two-dot chain line. The seal member 53 accommodated in the accommodating portion 103a has at least a cross-sectional shape that is pressed between the step portion 20b and the step portion 30c. That is, by providing the recesses 53a, 53b, 53c, and 53d on the four sides constituting the cross section of the seal member 53, the corners of the cross section are formed in a protruding shape, and the seal member 53 is accommodated in the accommodating portion 103a. Then, the protrusions at the corners are elastically deformed intensively.

  As described above, by providing the seal member 53 with the recesses 53a, 53b, 53c, and 53d, a protrusion is formed at the corner of the seal member 53, and the protrusion is formed by the step 20b and the step 30c. It is elastically deformed intensively. The adhesion of the sealing member 53 can be increased by the compression elastic force obtained by elastic deformation, and the airtightness of the sealed space 60 can be improved.

(Modification 4)
As a modification of the device main body 100 according to the first embodiment, a device main body 104 according to Modification 4 will be described with reference to FIG. FIG. 9 is a partially enlarged view of the device main body 104. Note that the device main body 104 according to this modification is different from the device main body 100 according to the first embodiment in the cross-sectional shape of the seal member 54. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The cross-sectional shape of the seal member 54 according to the modification 4 has a shape in which a recess is provided at a rectangular corner, and the shape before the seal member 54 is assembled into the case is indicated by a two-dot chain line. The seal member 54 is accommodated in an accommodating portion 104a configured by the inner peripheral surface 10b, the stepped portion 20b, and the stepped portion 30c. The seal member 54 accommodated in the accommodating part 104a has at least a cross-sectional shape that is pressed between the step part 20b and the step part 30c. In other words, the concave portion 54b is provided at the front corner portion that contacts the step portion 20b, and the concave portion 54a is provided at the rear corner portion that contacts the step portion 30c. When the seal member 54 is accommodated in the accommodating portion 104a, the central portion 54c sandwiched between the recess portions 54a of the seal member 54 contacts the step portion 30c, and the central portion 54d sandwiched between the recess portions 54b contacts the step portion 20b. To do. Moreover, in this modification, although the dent was provided in the corner | angular part of the front side and back side of the sealing member 54, it is not restricted to this, You may provide a dent in any one corner | angular part of a front side or a back side. .

  A shape before the seal member 54 is incorporated into the case is indicated by a two-dot chain line. When the seal member 54 is accommodated in the accommodating portion 104a, the seal member 54 is pressed and elastically deformed by the step portion 20b and the step portion 30c. Since the central portions 54c and 54d are partially elastically deformed by providing the concave portions 54a and 54b, the compression elastic force is concentrated on the central portions 54c and 54d, and the windshield 20, the display portion 30, and the seal member 54 are generated. Adhesion can be improved.

  With the above configuration, the same effect as that of the first embodiment can be obtained.

(Modification 5)
As a modification of the device main body 100 according to the first embodiment, a device main body 105 according to Modification 5 will be described with reference to FIG. FIG. 10 is a partially enlarged view of the device main body 105. Note that the device main body 105 according to this modification is different from the device main body 100 according to the first embodiment in the cross-sectional shape of the seal member 55. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The cross-sectional shape of the seal member 55 according to the modified example 5 is formed in a trapezoidal shape, and has an end surface 55b in contact with the step portion 20b of the windshield 20 and an end surface 55a in contact with the step portion 30c of the display unit 30, and the end surface 55a. And a side surface connecting the end face 55b. In this modification, the seal member 55 is configured in a trapezoidal shape such that L1> L2 when the length L1 of the end surface 55a and the length L2 of the end surface 55b are set. Moreover, it is not restricted to this, The trapezoid which made L1 <L2 by comprising length L1 and length L2 reversely may be sufficient. The seal member 55 is accommodated in an accommodating portion 105a configured by the inner peripheral surface 10b, the stepped portion 20b, and the stepped portion 30c.

  A shape before the seal member 55 is assembled into the case is indicated by a two-dot chain line. When the seal member 55 is accommodated in the accommodating portion 105a, the seal member 55 is pressed and elastically deformed by the step portion 20b and the step portion 30c. Since the contact area with the end surface 55b in contact with the stepped portion 20b is small, elastic deformation is intensively generated to increase the compression elastic force, and the adhesion between the stepped portion 20b and the seal member 55 can be enhanced. Moreover, since the end surface 55a is formed corresponding to the step portion 30c, the step portion 20b and the end surface 55b can be stably adhered to each other.

  With the above configuration, the same effect as that of the first embodiment can be obtained.

(Modification 6)
As a modification of the device main body 100 according to the first embodiment, a device main body 106 according to Modification 6 will be described with reference to FIG. FIG. 11 is a partially enlarged view of the device main body 106. The device main body 106 according to the present modification is different from the device main body 100 according to the first embodiment in the cross-sectional shape of the seal member 56. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The cross-sectional shape of the seal member 56 according to the modified example 6 includes an end surface 56a disposed to face the stepped portion 30c of the display unit 30, and an end surface 56b disposed to face the stepped portion 20b of the windshield 20. An outer peripheral surface 56d disposed opposite to the inner peripheral surface 10b of the top case 10, and an inner peripheral surface 56c formed as an inclined surface with respect to the end surface 56a, an end surface 56a, and an end surface 56b. , Are formed over. In other words, the seal member 56 is configured as a parting plate by configuring the seal member 56 with a cross-sectional shape that increases in thickness from the inner peripheral side toward the outer peripheral side.

  A projection 56e is provided on the end surface 56a toward the step portion 30c, and the step portion 30c and the projection 56e are in contact with each other. Further, a projection 56f is provided on the end surface 56b toward the step portion 20b, and is in contact with the step portion 20b. By incorporating the seal member 56 into the top case 10, the projection 56f is pressed by the stepped portion 20b, and the projection 56e is pressed by the stepped portion 30c, causing elastic deformation. When the protrusions 56e and 56f are elastically deformed, a compressive elastic force is generated, and the space formed by the windshield 20 and the display unit 30 is sealed to form a sealed space 60.

  With the above configuration, since the inner peripheral surface 56c of the seal member 56 is configured as an inclined surface, the seal member 56 is added with a function as a parting plate, and the design of the device body 106 is not uncomfortable and the seal member 56 can be used to form the sealed space 60. Further, by using a color tone different from that of the top case 10, the seal member 56 can be used as a design accent, and the design can be improved.

  As mentioned above, although the cross-sectional shape of the sealing member was demonstrated using the modification, if the airtightness of the sealed space 60 can be ensured, it will not be limited to these shapes.

(Embodiment 2)
A device main body 107 according to the second embodiment will be described with reference to FIG. FIG. 12 is a partially enlarged view of the device main body 107. Note that the device main body 107 according to this embodiment is different from the device main body 100 according to the first embodiment in that the first seal member 57 as a first annular member and the second seal member 58 as a second annular member. And the parting plate 70 is included. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 12, the device main body 107 is a device housing that is a sealed space surrounded by the top case 10, the bottom case 12 (not shown), and the windshield 20 that closes the opening 90 of the top case 10. A portion 81 is provided. The device housing portion 81 includes a parting plate 70 disposed along the outer edge of the display unit 30 between the windshield plate 20 and the display unit 30, and the first seal member 57 is connected to the windshield plate 20. The second seal member 58 is disposed between the display unit 30 and the surface of the parting plate 70 on the display unit 30 side. ing. Furthermore, as shown in FIG. 4, the component housing 81 accommodates the component parts that constitute the device main body 107, but since this is the same as in the first embodiment, the description thereof is omitted here.

  A parting plate 70 is disposed between the display unit 30 and the windshield 20, and a lower surface 70 b of the parting plate 70 is formed facing the display surface 30 b, and is opposed to the stepped part 30 c on the outer peripheral side of the lower surface 70 b. Thus, a step portion 70f is formed. On the opposite side of the lower surface 70b, an upper surface 70a is formed facing the inner surface 20a of the windshield plate 20, and on the outer peripheral side of the upper surface 70a, a step portion 70e is formed facing the step portion 20b of the windshield plate 20. ing. The outer peripheral surface 70d disposed to face the inner peripheral surface 10b of the top case 10 is provided across the step portion 70e and the step portion 70f, and the inner peripheral portion 70c formed as an inclined surface with respect to the lower surface 70b. Is formed over the upper surface 70a and the lower surface 70b.

  A shape before the first seal member 57 and the second seal member 58 are assembled into the case is indicated by a two-dot chain line. The cross-sectional shapes of the first seal member 57 and the second seal member 58 are circular or elliptical. The first seal member 57 is accommodated in an accommodating portion 107a configured by the step portion 20b, the step portion 70e, and the inner peripheral surface 10b, and is pressed and elastically deformed by the step portion 20b and the step portion 70e. Further, the second seal member 58 is accommodated in an accommodating portion 107b configured by the step portion 30c, the step portion 70f, and the inner peripheral surface 10b, and is pressed and elastically deformed by the step portion 30c and the step portion 70f. The space formed by the windshield 20 and the display unit 30 is elastically deformed by the first seal member 57 and the second seal member 58 via the parting plate 70, thereby obtaining a sealed space 60 that is sealed by obtaining a compression elastic force. Is formed.

  In the present embodiment, the step portion 20b is provided on the windshield plate 20 corresponding to the first seal member 57, and the step portion 70e is provided on the parting plate 70 to constitute the housing portion 107a. The accommodating portion 107a may be configured on either the plate 20 side or the parting plate 70 side. That is, the accommodating part 107a may be comprised by the step part 70e and the inner surface 20a, and may be comprised by the step part 20b and the upper surface 70a. In addition, regarding the accommodating portion 107b, the accommodating portion 107b may be configured on either the display unit 30 side or the parting plate 70 side. That is, the accommodating part 107b may be comprised by the step part 70f and the display surface 30b, and may be comprised by the lower surface 70b and the step part 30c.

  As the material of the parting plate 70, for example, a metal mainly composed of aluminum, stainless steel, brass (brass) or the like is used, or an ultraviolet curable transparent resin material (resin made) such as urethane acrylate, acrylic resin acrylate, or epoxy acrylate. Or the like) can be used. Here, if a metal material is used for the parting plate 70, a high-class feeling can be added to the periphery of the display unit 30, and the strength can be increased. Further, if the parting plate 70 is made of resin, it can be easily molded by, for example, molding and curing with ultraviolet rays or the like, and can easily cope with diversification of shapes.

  Moreover, the cross-sectional shape of the 1st seal member 57 and the 2nd seal member 58 is not restricted to the ellipse illustrated in FIG. 12, What is necessary is just the shape which can seal the sealed space 60. FIG. For example, it can be oval, rectangular, or trapezoidal.

  FIG. 13 illustrates an embodiment in which a display 71 is provided on the inner peripheral portion 70 c of the parting plate 70 of the device main body 107. FIG. 13 is a partial plan view relating to the device main body 107. The display 71 can include, for example, a character 71a, a symbol (pictogram) 71b, and a scale not shown. The display 71 only needs to be provided with at least one of a character 71a, a symbol (pictogram) 71b, and a scale (not shown). The display 71 may change the color tone or display a pattern. Thus, the design can be improved by providing the display 71 on the parting plate 70 and providing characters, patterns, and the like.

  As described above, the parting plate 70 is disposed between the windshield 20 and the display unit 30 to form a space, and the space is sealed by the first seal member 57 and the second seal member 58 and sealed. By configuring the space 60, the temperature difference between the external temperature T <b> 1 and the housing temperature T <b> 3 of the device housing portion 81 can be relaxed by the sealed space 60. And even if the temperature of the inner surface 20a of the windshield 20 decreases with the rapid decrease of the external temperature T1, the temperature difference with the space temperature T2 of the sealed space 60 in contact with the inner surface 20a is small, so that it occurs on the inner surface 20a. Generation | occurrence | production of the condensation function of a water | moisture content can be prevented and generation | occurrence | production of cloudy can be reduced.

  Further, since the display 71 can be provided on the inner peripheral portion 70c of the parting plate 70, the function display of the operation buttons and the display linked with the display content of the display unit 30 can be performed. Then, by using a metal material as the material of the parting plate 70, a high-class feeling can be added and the design can be improved.

  The planar shape of the display unit 30 described in the present embodiment has been described using a circle, but is not limited to a circle, and may be, for example, a rectangle or an ellipse. An example in which the planar shape of the display unit 31 is rectangular will be described with reference to FIG. FIG. 14 is a plan view of the device main body 108. The device main body 108 according to the present embodiment is different from the device main body 100 according to the first embodiment in the planar shape of the display unit 31. Therefore, the same components as those of the device main body 100 according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The windshield 21 is formed in a rectangular shape along the planar shape of the display unit 31, and the first seal member 57 is disposed along the outer edge of the display unit 31, thereby forming a sealed space 60 (not shown). ing. A bezel 14 is formed on the outer periphery of the windshield 21 along the outer periphery of the windshield 21.

    As described above, even if the planar shape of the display unit 31 is a rectangle or an ellipse, the windshield plate 21 and the display unit are configured by forming the first seal member 57 along the outer edge of the display unit 31. 31 can be sealed, and the cloudiness generated on the inner surface of the windshield 21 can be reduced.

  In the above description, the wrist device attached to the wrist of the user is exemplified as the portable electronic device attached to a given part of the user (wearer). can do. The portable electronic device may have, for example, a necklace-type configuration that hangs around the neck, a configuration that is worn on the trunk, ankle, or the like.

  DESCRIPTION OF SYMBOLS 10 ... Top case as a case, 11 ... Bezel, 12 ... Bottom case, 20 ... Windshield as a board | substrate, 20a ... Inner surface, 20b ... Step part as a dent, 30 ... Display part, 30a ... Outer peripheral part, 30b ... Display As a surface, 30c ... a step as a recess, 50 ... a seal member, 51 ... a seal member, 52a ... a recess, 52b ... a recess, 57 ... a first seal member as a first annular member, 58 ... as a second annular member Second sealing member, 60 ... sealed space, 70 ... parting plate, 90 ... opening, 100 ... device body, 200 ... first band portion, 201 ... second band portion, 1000 ... portable electronic device List equipment.

Claims (10)

Case and
A display unit housed in the case;
A substrate that covers the opening of the case so as to overlap the display unit in plan view;
An annular seal member disposed along an outer edge of the display unit so as to seal a space between the substrate and the display unit,
Portable electronic device. In claim 1,
Including a parting plate disposed along an outer edge of the display unit between the substrate and the display unit;
The annular seal member is composed of a first annular member and a second annular member,
The first annular member is disposed between the substrate and the surface of the parting plate on the substrate side,
The second annular member is disposed between the display unit and the display unit side surface of the parting plate.
Portable electronic device. In claim 1 or claim 2,
The annular seal member is an elastic member having water resistance,
Portable electronic device. In any one of Claims 1-3,
The cross-sectional shape of the annular seal member is a circle or an ellipse.
Portable electronic device. In any one of Claims 1-3,
A recess is provided in at least one of the surface of the annular seal member that contacts the substrate and the surface that contacts the display unit.
Portable electronic device. In any one of Claims 1-3,
The cross-sectional shape of the annular seal member is a trapezoid,
Portable electronic device. In claim 1,
The annular seal member is a parting plate,
Portable electronic device. In any one of Claims 1-7,
A recess is provided in the contacted portion of at least one of the substrate that is in contact with the annular seal member and the display unit.
Portable electronic device. In any one of Claims 1-8,
The space is filled with an inert gas;
Portable electronic device. In any one of Claims 1-8,
The space is a decompressed atmosphere.
Portable electronic device.

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