JP2017040497A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shock-resistant structure for protecting an electronic component from a shock while the structure does not include an additional buffer member for the electronic component.SOLUTION: A relief member 20 is provided at a portion corresponding to side corners and end corners of a patch antenna 31, of a holding member 10 and a holding part 21 is provided at a portion corresponding to a surface of the patch antenna 31, of the holding member 10, so that the holding member 10 comes in contact with the electronic component 31 to secure shock resistance and an additional buffer member is unnecessary, that is, the number of components can be reduced, and besides, a component cost and an assembly cost can be reduced.SELECTED DRAWING: Figure 10

Description

  The present invention relates to an electronic device that employs a holding structure for an electronic component having impact resistance.

The holding structure of the electronic component built in the conventional electronic device employs an impact resistant structure in which the electronic component is held in contact with a buffer member separate from the holding member. (See Patent Document 1)
A conventional technique will be described with reference to FIG. FIG. 31 is a cross-sectional view showing an impact resistant structure in which the patch antenna 31 mounted on the board member 32 is held by the holding member 100 provided with the buffer members 201 to 202, and serves as a watch that receives radio waves from GPS satellites. It is an example.

  The watch case includes an electronic board on which a patch antenna or the like is mounted, a train wheel and other components, a ground plate for positioning them, a circuit holder for holding the circuit board, a battery, and the like. The ground plane has a space for accommodating the patch antenna. When the electronic board and the ground plane are assembled in the watch case, the patch antenna comes into contact with the ground plane via the buffer member 201 and fits in this space. (FIG. 2 of Patent Document 1) Accordingly, the patch antenna is always supported by the buffer member 201, and even if a strong impact such as being dropped on the ground is applied to the watch, the buffer member 201 absorbs the impact, and the patch antenna and the ground plate Can prevent collisions.

Japanese Patent No. 5570462 (FIG. 1)

  Since the prior art shown in Patent Document 1 has a structure in which a buffer member separate from the holding member is disposed, there is a problem that the number of parts of the buffer member increases, and the part cost and assembly cost increase. Accordingly, an object of the present invention is to provide an impact-resistant structure that protects an electronic component from an impact while having a structure in which no additional buffer member is provided on the electronic component.

  In order to solve the above problem, an electronic apparatus according to the present invention includes an electronic component, a board member for mounting the electronic component, and a holding member for holding an outer periphery of the electronic component, and the electronic component includes a plurality of electronic components. And a corner portion that is a portion where the adjacent surfaces intersect each other, and an end corner portion that is a portion where the corner portions intersect, and the holding member faces the corner portion. A holding part is provided on the surface, and a relief part is provided at a position facing the end corner part, and the distance between the electronic component and the holding member is the shortest at the central part of the holding part. .

  According to the impact resistant structure of the present invention, the holding member is brought into contact with the electronic component to ensure impact resistance, and an additional buffer member is not required, so that not only the number of components can be reduced but also the component cost and assembly cost can be reduced. .

1 is a plan view of a satellite radio timepiece according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view taken along one-dot chain line I of the satellite radio timepiece in FIG. It is a schematic perspective view of the patch antenna mounted on the board member. It is a top view of a patch antenna and the conventional holding member when an impact is applied. FIG. 2 is an enlarged view of a principal part of a cross-section of a patch antenna and a holding member according to the first embodiment of the present invention along a chain line I of FIG. It is a top view of a patch antenna and a holding member concerning a 1st embodiment of the present invention. It is a top view of a patch antenna and a holding member concerning a 1st embodiment of the present invention. It is a top view of the holding member which concerns on a patch antenna and 1st Embodiment of this invention when an impact is applied. It is a top view of the holding member which concerns on a patch antenna and 1st Embodiment of this invention when an impact is applied. It is a schematic three-dimensional view of the patch antenna mounted on the board member and the holding member according to the first embodiment of the present invention. It is a schematic diagram of the three-dimensional shape of the holding | maintenance part which concerns on 1st Embodiment of this invention. FIG. 6 is an enlarged view of a main part of a cross section of a modification of the patch antenna and the holding member according to the first embodiment of the present invention along the alternate long and short dash line I of the satellite timepiece in FIG. It is a top view of a modification of a patch antenna and a holding member concerning a 1st embodiment of the present invention. It is a top view of a modification of a patch antenna and a holding member concerning a 1st embodiment of the present invention. It is a top view of the modification of the holding member which concerns on an octagonal patch antenna and 1st Embodiment of this invention. It is a three-dimensional view of a ring-shaped antenna. It is sectional drawing of the modification of the ring-shaped antenna mounted in the board | substrate member, and the holding member which concerns on 1st Embodiment of this invention. It is a top view of a holding member concerning a patch antenna and a 2nd embodiment of the present invention. It is a top view of a modification of a patch antenna and a holding member concerning a 2nd embodiment of the present invention. It is a top view of a modification of a patch antenna and a holding member concerning a 3rd embodiment of the present invention. It is sectional drawing of the modification of the patch antenna and the holding member which concern on 3rd Embodiment of this invention along the dashed-dotted line II of the satellite radio timepiece in FIG. It is a top view of a modification of a patch antenna and a holding member concerning a 3rd embodiment of the present invention. It is sectional drawing of the modification of the patch antenna along the dashed-dotted line III in FIG. 22, and the holding member which concerns on 3rd Embodiment of this invention. It is a principal part enlarged view of the cross section of the patch antenna along the dashed-dotted line I of FIG. 1, and the modification of the holding member which concerns on 4th Embodiment of this invention. It is a three-dimensional view of the holding member which concerns on 4th Embodiment of this invention. It is a top view of a modification of a patch antenna and a holding member concerning a 5th embodiment of the present invention. FIG. 3 is a three-dimensional view of a patch antenna mounted on a substrate member and having a feeding electrode on a side surface. It is a schematic diagram explaining the movement range of the outline of a patch antenna. It is a top view of the holding member which concerns on a patch antenna and the ideal shape of this invention. It is a top view of the holding member which concerns on a patch antenna and the ideal shape of this invention when an impact is applied. It is a schematic sectional drawing of the conventional impact-resistant structure.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  Note that the patch antenna is described as an example of the electronic component for preventing breakage, but the present invention is not limited to this, and other electronic components made of a brittle material are also targeted.

  FIG. 1 is a plan view showing an example of the appearance of the satellite radio timepiece 990, and FIG. 2 is a cross-sectional view taken along the alternate long and short dash line I in FIG. In the following, the present invention will be described as a satellite radio clock equipped with a patch antenna for receiving radio waves such as GPS signals, but it can also be applied to portable electronic devices other than satellite radio clocks.

  In the satellite radio-controlled timepiece 990, a clock movement (not shown) is accommodated in a metal outer case 400, a transparent cover glass 410 is press-fitted into the opening on the time display plate side of the clock movement, and the other opening is back. A lid 401 is fitted. Further, the outer case 400 is provided with a crown and a push button for the user to operate the watch.

  In the following, the cover glass 410 side with respect to the watch movement is referred to as the upper surface side, and the back cover 401 side is referred to as the lower surface side, and the time from 6 o'clock to 12 o'clock is 12 o'clock, and 3 o'clock to 9 o'clock is 9 o'clock. We will call it direction.

  The timepiece movement includes a pointer 501, a dial (not shown), and a holding member 100. The holding member 100 includes a drive mechanism 500 including a motor and gears, a battery 450, and a board member 32. It has been incorporated. The board member 32 is mounted with electronic components such as a patch antenna 31, an electrical wiring, a receiving circuit, a power supply circuit, a microcomputer, and a motor driver, and operates with the battery 450 as a main power source. Functions as a satellite radio clock such as signal processing and control of the drive mechanism 500 are realized.

  The patch antenna 31 is an antenna that receives a radio wave having a frequency of about 1.6 GHz transmitted from a GPS (Global Positioning System) satellite. GPS is a kind of satellite positioning system, and is realized by a plurality of GPS satellites orbiting around the earth. Each of these GPS satellites is equipped with a high-accuracy atomic clock, and periodically transmits a satellite signal including time information measured by the atomic clock. The receiving circuit (not shown) includes a high-frequency circuit and a decoding circuit (not shown), decodes the satellite signal received by the patch antenna 31 by the receiving circuit, and receives the received data as a control circuit (not shown). Output to. Next, the operation of the satellite radio wave wristwatch will be described in detail.

  The high-frequency circuit performs amplification and detection on the high-frequency analog signal received by the patch antenna 31 and converts it to a baseband signal. The decoding circuit decodes the baseband signal output from the high frequency circuit and outputs the decoded baseband signal to the control circuit. The control circuit is a circuit that controls various circuits and mechanisms of the satellite radio-controlled wristwatch 990, and includes a microcontroller, a motor drive circuit, and an RTC (Real Time Clock) not shown.

  The RTC supplies a clock signal used for timing in the satellite radio wave wristwatch 990. Further, a counter (not shown) included in the microcontroller counts pulses included in the clock signal output from the RTC, and a calculation unit (not shown) of the microcontroller determines the number of pulses counted by the counter. The corresponding internal time is acquired, and the time (display time) to be displayed on the time display unit (not shown) is determined. In accordance with the display time, the motor drive circuit outputs a drive signal for driving the motor of the drive mechanism 500, drives the hands 501, and the display time is displayed on the time display unit.

When the satellite radio wave wristwatch 990 obtains time and position information from the received data, the satellite timepiece 990 corrects the internal time measured by the signal and counter supplied from the RTC based on the received time and position information.

  The patch antenna 31 is made of a brittle dielectric material such as ceramic, and includes an antenna electrode 311 having about ½ wavelength. The ½ wavelength is an electrical length with respect to the wavelength of the satellite radio wave to be received. From the physical dimensions of the antenna electrode 311 and the dielectric constant of the dielectric disposed around the antenna electrode 311. Determined. Since the dielectric constant of ceramic is a high dielectric constant of several to 100 times that of vacuum, the wavelength shortening effect is large, and the physical length of the antenna electrode 311 can be reduced by using it as an antenna dielectric.

  On the other hand, since ceramic is a brittle material, it is easily damaged when subjected to an impact, and not only the reception performance as an antenna deteriorates, but also there is a high possibility that ceramic fragments caused by the damage will be caught between mechanical parts such as gears. This can also cause the train to stop moving. The patch antenna 31 is large and heavy as an electronic component built in the watch, along with the battery. In order to reduce the size and thickness of the wristwatch, the space required for mounting the patch antenna 31 needs to be minimized.

  Since the radio wave transmitted from the GPS satellite is circularly polarized, the antenna electrode 311 is often formed in a shape obtained by partially deforming a square suitable for receiving circularly polarized waves. FIG. 3 is a perspective view showing the patch antenna 31 mounted on the board member 32. The patch antenna 31 has a square shape in accordance with the shape of the antenna electrode 311 and has six faces and twelve sides as shown in FIG. In the following, in the rectangular patch antenna 31, a boundary where two adjacent planes are combined, that is, a side portion is referred to as a side corner portion 70, and a portion where the side corner portions 70 intersect each other, that is, a portion which is an end of the side Is referred to as an end corner portion 71, and a portion of the surface excluding the side corner portion 70 and the end corner portion 71 from the surface of the patch antenna 31 is referred to as a surface portion.

  The holding member 100 is also referred to as a base plate, and incorporates various parts constituting the timepiece. Therefore, the holding member 100 has a high-precision shape according to the parts. As described above, the driving mechanism 500 such as a motor and a gear, the battery 450, The board member 32 and the like are fixed with screws, pins, and the like. The holding member 100 is molded from a resin such as plastic so as to reach the patch antenna 31 without reflecting the radio waves incident from the cover glass 410.

  Electronic components such as a patch antenna 31, a receiving circuit, a power supply circuit, a microcomputer, and a motor driver are mounted on the substrate member 32, and these mounted components are held with the substrate member 32 so that they are accommodated in the recesses of the holding member 100. The members 100 are overlapped, and a circuit holder (not shown) is screwed to the holding member 100 from behind the substrate member 32 to fix the substrate member 32. More specifically, positioning is performed by fitting pins, bosses, dowels, and the like provided in the holding member 100 with holes in the board member 32 so that the board member can be fixed at a correct position with respect to the holding member 100. Then, when the circuit pressing member in close contact with the non-mounting surface side of the substrate member 32 is screwed to the holding member 100, the substrate member 32 is fixed to the holding member 100 by the pressing force of the circuit pressing member.

  Since there are actually errors such as dimensional tolerances in the holes of the pin, boss, dowel and board member 32 of the mechanically coupled holding member 100, the pins and bosses can be assembled even if errors occur. There is play in the dimensions of the holes of the dowel and the substrate member 32, and a gap is generated in the connecting portion. In addition, since the patch antenna 31 is mounted on the board member 32 with solder and may be misaligned, there are assembly errors and dimensions between the concave portion for the patch antenna 31 and the patch antenna 31 in the holding member 100. A gap corresponding to an error such as tolerance is provided. As a result, the concave portion of the holding member 100 and the patch antenna 31 do not interfere with each other, and the assembly is facilitated.

Accordingly, there is a degree of freedom corresponding to the gap between the coupling portions in the positional relationship between the holding portion 100 and the board member 32, and each component is not a complete rigid body, and therefore deforms when an external force is applied. As described above, although there is a gap between the concave portion of the holding member 100 and the patch antenna 31, when a strong impact is applied to the watch, it cannot be fixed by the circuit holder and the pin, the boss, the dowel and the substrate The substrate member 32 moves by a distance corresponding to the coupling portion between the hole of the member 32 and the patch antenna recess of the holding member 100 collides with the patch antenna 31. Furthermore, the amount of movement and the movement speed of the substrate member 32 increase depending on the number and position of the coupling portions between the holding member 100 and the substrate member 32 and the rigidity of the pins, bosses, and dowels.

  FIG. 4 is a plan view of the patch antenna 31 and the conventional holding member when an impact is applied. Arrows indicate the direction of impact, 23 is a fixing member such as a boss for positioning the substrate member 32, 31 is a patch antenna, 311 is a receiving surface thereof, and 100 is a conventional holding member.

  When an impact is applied in the twelve o'clock direction (upward direction in FIG. 4) by dropping the watch or the like, an inertial force acts on the heavy patch antenna 31 and the substrate member 32 on which the patch antenna 31 is mounted is also applied. Inertia is transmitted. Then, the substrate member 32 moves in the plane due to the elastic deformation of the constituent material such as the gap between the holding member 100 and the substrate member 32 and the fixing member 23 and the substrate member 32, and the patch antenna 31 and the holding member 100. Collide.

  At this time, the moving direction of the substrate member 32, that is, the patch antenna 31 is not a simple translation in the direction in which the impact is applied, but a rotation direction with the fixing member 23 close to the patch antenna 31 on which an inertial force acts as a fulcrum.

  That is, even if the surface of the patch antenna 31 and the holding member 100 is completely parallel when no impact is applied, when the impact is applied, the side corners or end corners of the patch antenna 31 are There is a possibility of colliding with the holding member 100.

  Since the patch antenna 31 is made of a brittle material, if stress is concentrated on the side corners or end corners due to impact or the like, breakage such as cracking or chipping occurs, the antenna does not function, and radio waves cannot be received. Further, even if the chipping is slight enough not to affect the operation of the patch antenna 31 as an antenna, the patch antenna 31 or a part of the holding member 100 is used for a part opened in the gap or the holding member 100. May move through the holes and adhere to, for example, gears or switches inside the timepiece of the driving mechanism 500, which may cause malfunction.

  As a countermeasure, there is a method of providing a sufficient gap between the holding member 100 and the patch antenna 31 so that the holding member 100 does not come into contact with the patch antenna 31 when an impact is applied. If the area occupied by a large component such as the patch antenna 31 is further increased in a watch module where components must be arranged, the arrangement configuration of other components will be greatly limited, resulting in deterioration of characteristics such as reception performance. It can be connected.

  In addition, if a cushioning material is provided between the holding member 100 and the patch antenna 31, a space for arranging the cushioning material is required, and the number of parts increases, resulting in an increase in material costs and work costs.

  Next, a first embodiment of the impact resistant structure in the holding member of the present invention will be described.

  5 and 6 show the structure of the holding member 10 according to the first embodiment of the present invention.

FIG. 5 is an enlarged view of an essential part of a cross section of the patch antenna 31 and the holding member 10 taken along the alternate long and short dash line I in FIG. The escape portion 20 and the holding portion 21 of the holding member facing the side corner portion 70 and the end corner portion 71 of the patch antenna 31 are three-dimensionally continuous on the side surface and the upper surface as shown in FIG. FIG. 6 is a plan view of the patch antenna 31 and the holding member 10. The requirements such as the size and position of the patch antenna 31, the fixing member 23 such as a pin, boss, and dowel provided on the holding member 10 and the hole of the substrate member 32 are the same as those in FIG. 4.

  The feature of FIG. 5 is the shape of the holding member 10, and a relief portion 20 is provided in the portion of the holding member 10 with respect to the side corner portion 70 and the end corner portion 71 of the patch antenna shown in FIG. A holding portion 21 is provided at the site of the member 10. Specifically, the holding portion 21 of the holding member 10 facing the surface portion of the patch antenna 31 has a gentle convex shape in the direction of the patch antenna 31 in a top view, and the side corner portion 70 and the end corner portion of the patch antenna. A semicircular space is provided as a relief portion 20 at a portion of the holding member 10 facing 71 so as not to collide with the holding member 10 even if the patch antenna 31 moves.

  Next, the effects brought about by the shapes of the escape portion 20 and the holding portion 21 will be described.

  When the side corner portion 70 and the end corner portion 71 of the patch antenna 31 collide with the holding member 10, since the area subjected to the impact is small, stress concentrates and a part of the side corner portion 70 and the end corner portion 71 is lost. Even in the holding member 10, the reaction force due to the collision from the side corner portion 70 and the end corner portion 71 of the patch antenna 31 is concentrated on a small area, and therefore, there is a possibility that chipping occurs. Further, as described above, there is play in the dimensions of the fixing member 23 of the holding member 10 and the hole (not shown) of the substrate member 32, and the patch antenna 31 moves in accordance with the direction of impact received by the watch. The direction changes. Accordingly, the relief portion 20 is provided so that the side corner portion 70 and the end corner portion 71 of the patch antenna 31 do not contact the holding member 10, and does not collide with the side corner portion 70 and the end corner portion 71 even when an impact is applied from any direction. Thus, it is set as the semicircle shape which can take distance equally with respect to each direction.

  If the amount of movement of the patch antenna 32 can be reduced by increasing the number of the fixing members 23, increasing the fixing force of the board member 32, or reducing the play in the dimensions of the fixing members 23 and the holes, the shape of the relief portion 20 is changed. The shape is not limited to a semicircular shape, and may be a square shape or a shape in which a mountain-shaped relief portion 20 having a small semicircular vertex and a holding portion 21 are connected with a smooth curve as shown in FIG. In particular, the shape shown in FIG. 7 has an effect of improving impact resistance by eliminating the corners on the holding member 10 side so that stress due to impact is easily dispersed and is not easily damaged. In this way, by providing the holding member 10 with the escape portion 20 and the holding portion 21, the impact resistance of an electronic member made of a brittle material such as a patch antenna is ensured, and an additional buffer member is not required. Not only can the number of points be reduced, but also the parts cost and assembly cost can be reduced.

  Taking a rectangular parallelepiped patch antenna as an example, there are twelve side corners and eight end corners, and therefore, the relief portions 20 are all provided in the portions of the holding member 10 facing the end corners and the side corners. It is good to provide. However, among the corner portions of the patch antenna 31, the four side corner portions 70 and the end corner portions 71 that are in contact with the substrate member 32 are always in close contact with the substrate member 32, so even when an impact is applied, The possibility of contact with the holding member 10 is low. Therefore, by not providing relief portions at the four corners and end corners that are in contact with the substrate member 32, the shape of the holding member 10 can be simplified without impairing the impact resistance. There is an effect that the molding of the shape becomes easy.

  Further, when the patch antenna 31 and the holding member 10 collide, the holding portion 21 receives the surface portion of the patch antenna 31 by the surface, so that the area subjected to the impact can be increased and the stress can be dispersed to prevent damage. The structure that receives the surface portion of the patch antenna 31 by the surface is a gentle convex shape in the holding portion 21. The reason will be described below.

FIG. 8 shows a state when an impact is applied to the holding member 10 and the patch antenna 31 according to the first embodiment of the present invention in the same direction as FIG. Since the requirements other than the holding member 10 are the same as those in FIG. 4, the description of the common requirements is omitted here.

  As described with reference to FIG. 4, when an impact force in the 12 o'clock direction is applied, the gap (not shown) between the fitting portion due to the play of the hole portion of the fixing member 23 and the substrate member 32 and the fixing member 23 are the center. Due to the rotational force, the side corners and end corners of the patch antenna 31 and the surface part approach the A of the holding part 21. The side corners and end corners do not need to collide with the holding member 10 by the escape portion 20.

  The surface portion collides with the holding member 10, but by providing a gentle convex shape on the holding member 10, the surface portion moved by the impact and the A of the holding portion 21 facing this are close to parallel and collide with each other. Sometimes, since the collision area is widened, the stress is diffused, and the patch antenna 31 can be prevented from being damaged.

  When the direction in which the impact force is applied is the 6 o'clock direction opposite to the 12 o'clock direction, the rotational force in the direction opposite to the above acts around the fixing member 23, and the side corners and the end corners of the patch antenna 31. The surface portion is close to C of the holding portion 21. Also at this time, by providing a gentle convex shape on the holding portion 21 with respect to the surface portion, the C of the surface portion and the holding portion 21 becomes nearly parallel, so the C of the surface portion and the holding portion 21 collide for the same reason as described above. However, damage to the patch antenna 31 can be prevented.

  FIG. 9 shows a state where the direction in which the impact force is applied to the holding member 10 and the patch antenna 31 according to the first embodiment of the present invention is the 9 o'clock direction. Since the configuration requirements are the same as those in FIG. 8, the description of the common requirements is omitted here.

  When the direction in which the impact force is applied is 9 o'clock, no rotational force is generated around the fixing member 23, and the patch antenna 31 is equal to the gap between the fitting portions due to the play between the hole portions of the fixing member 23 and the board member 32. Moves, and the surface portion and B of the holding portion 21 facing the surface portion approach and collide with each other. At this time, by providing the holding portion 21 with a gentle convex shape, the surface portion and B of the holding portion 21 opposed to the surface portion become nearly parallel to each other. Therefore, for the same reason as described above, the surface portion and B of the holding portion 21 The collision area is increased, the stress is dispersed, and damage to the patch antenna 31 can be prevented.

  Here, for the sake of simplicity of explanation, the description is made by omitting the influence of the elastic deformation of the fixing member 23 and the substrate member 32. However, even if these influences are taken into account, a case where a collision occurs is a surface portion. The holding part 21 can be broadly divided into the above-mentioned three types that collide with A, B, or C. By providing the holding part 21 with a gentle convex shape, the stress is concentrated in a narrow part at the time of any part collision. Therefore, the patch antenna 31 and the holding member 10 can be prevented from being damaged without the need for an additional buffer member, and the number of parts can be reduced to reduce the part cost and assembly cost.

  The rotational force due to the impact rotates mainly along the axis of the fixing member 23 and becomes a rotational component in the same plane as the substrate member 32. Therefore, the side surface that is orthogonal to the surface of the substrate member 32 in which a component in the rotational direction is less likely to occur. The cross-sectional shape of the holding part 21 as viewed from the direction may be flat. While holding down the impact resistance, it is easy to shape the holding member 10 and to save space corresponding to the height of the convex shape.

  Details of the reason why the shape according to this embodiment is suitable will be described at the end of the sentence.

If the shape and dimension are set so that the portion of the holding portion 21 closest to the patch antenna 31 has a minimum distance that does not come into contact with the patch antenna 31, further effects can be obtained. The minimum distance here refers to the manufacturing tolerances of the holding member 10, the patch antenna 31, the board member 32, and the fixing member 23 such as a boss and its fitting hole, and the patch antenna 31 is soldered to the board member 32. It is the distance obtained by adding up the misalignment allowable range when attached and adding the allowance dimension to the maximum amount. The installation allowance dimension means that when the operator installs the substrate member 32 into the holding member 10, even if the substrate member 32 is inclined, the holding member 10 and the patch antenna 31 do not come into contact with each other, and the installation operation can be completed in a short time. In this case, the clearance between the holding member 10 and the patch antenna 31 is provided with a margin, and here, it is set to 100 μm to 300 μm.

  As described above, when the shape dimension is set so that the gap between the holding portion 21 and the patch antenna 31 is a minimum distance, the patch antenna 31 is in contact with the holding portion 21 and starts to be held when receiving an impact. The moving distance is minimized, the holding member 10 holds the inertial force acting on the patch antenna 31, and the effect of reducing the shearing force applied to the portion where the patch antenna 31 is soldered to the substrate member 32 is achieved. is there. Accordingly, the holding unit 21 also prevents the patch antenna 31 from being peeled off from the substrate member 32 due to an impact.

  So far, for ease of explanation, the escape portion 20 and the holding portion 21 have been described two-dimensionally using the cross-sectional view of the holding member 10. However, since the patch antenna 31 is a cube, the escape portion 20 and the holding portion. The shape of 21 can be applied three-dimensionally. This will be specifically described below. As an example, FIG. 10 shows a configuration in which the holding portion 21 and the relief portion 20 are provided on the patch antenna 31 mounted on the board member 32 and the holding member 10 disposed so as to surround the patch antenna 31 in the periphery thereof. Show. FIG. 3 shows a state where the holding member 10 of FIG. 10 is removed.

  First, the holding unit 21 will be described. In the holding member 10 of FIG. 10, the holding portion 21 is provided on a surface of each surface portion of the patch antenna 31 that faces the five surfaces excluding the substrate member 32 side. FIG. 11 schematically represents the shape of the holding unit 21. The thickness direction of the patch antenna 31 is the M-axis and the direction perpendicular to the M-axis is the N-axis with respect to the surface of the holding unit 21 facing the patch antenna 31. In FIG. The M axis and the longitudinal direction are the N axis.

  When the patch antenna 31 moves due to an impact and comes into contact with the holding unit 21, when the patch antenna 31 performs only an ideal translation with respect to the holding unit 21, the surface portion of the patch antenna 31 is parallel to the holding unit 21. Because of the contact, the shape of the holding portion 21 may be a planar shape as shown in FIG. However, in reality, the impact applied to the timepiece is applied from all directions in three dimensions, and as described above, a component in the rotational direction about the fixed portion around the patch antenna 31 is generated. As long as the rotation direction is limited to the axis orthogonal to the surface of the holding unit and the rotation in the L-axis direction, there is no problem because the patch antenna 31 and the holding unit 21 are in parallel contact, but the patch antenna 31 rotates in the M-axis or N-axis direction. If the flat holding portion 21 is contacted with the flat holding portion 21 in a tilted state, the surfaces are not brought into parallel contact with each other, and stress due to impact is concentrated on the edge of the surface, and the patch antenna 31 and the holding portion 21 may be damaged. There is.

  As described above, if the surface of the holding portion 21 that faces the patch antenna 31 has a gentle convex shape in the direction of the patch antenna 31, the patch antenna 31 and the holding portion 21 come into contact with each other by movement including the rotational direction component. Even if it exists, while the surface part which the patch antenna 31 and the holding | maintenance part 21 oppose is contacted in a parallel state, the stress by an impact is disperse | distributed by a gentle convex shape, and the effect which prevents damage to the patch antenna 31 and the holding | maintenance part 21 is effective. can get.

FIG. 11B shows a holding portion in which the alternate long and short dash line M ′ has a gently convex shape in order to bring the opposing surface portions into parallel contact even if the patch antenna 31 rotates around the M axis and contacts the holding portion 21. 21. That is, the surface of the holding portion 21 that faces the patch antenna 31 has a gentle convex shape in the N-axis direction. 11B, even when the patch antenna 31 moves due to an impact including rotational direction components about the L axis and the M axis, the patch antenna 31 and the holding unit 21 The opposing surface portions are brought into contact with each other in a nearly parallel state, and the stress due to the impact is dispersed with a gentle convex shape, thereby preventing the patch antenna 31 and the holding portion 21 from being damaged.

  Furthermore, the surface of the holding portion 21 facing the patch antenna 31 may have a gentle convex shape in the M-axis direction, and the patch antenna 31 that has received an impact moves so that its posture changes in the M-axis direction. In this case, the stress due to the impact is dispersed with a gentle convex shape, and damage to the patch antenna 31 and the holding portion 21 can be prevented.

  In FIG. 11C, even if the patch antenna 31 is further rotated in the N-axis direction and is in contact with the holding portion 21, the opposing surface portions are brought into contact in a nearly parallel state. Is a holding portion 21 having a gently convex shape. That is, the surface of the holding portion 21 facing the patch antenna 31 has a gentle convex shape with respect to both the M axis and the N axis. 11C, even when the patch antenna 31 moves due to an impact, including the L-axis, M-axis, and N-axis, including rotational direction components in all directions, the patch antenna 31 is provided. And the opposing surface portions of the holding portion 21 are brought into contact with each other in a nearly parallel state, and the stress due to the impact is dispersed by a gentle convex shape, thereby preventing the patch antenna 31 and the holding portion 21 from being damaged.

  Ideally, if the shape of all of the five holding portions 21 in FIG. 10 is a gently convex shape with a cubic surface as shown in FIG. 11C, the patch antenna 31 is rotated and moved in all directions. Even so, the effect of preventing breakage can be obtained. However, from the viewpoint of forming the shape of the holding member 10, the shape of the holding portion 21 is easier for a quadratic curved surface than a cubic curved surface, and a flat surface is easier to form than a quadratic curved surface. Therefore, when the axis of the rotational movement direction of the patch antenna 31 is limited, the shape of the holding portion 21 may be a quadric surface or a flat surface. In other words, the surface of the holding portion 21 that faces the patch antenna 31 has a gentle convex shape toward the patch antenna 31 with respect to one or both of the M axis and the N axis, thereby dispersing stress due to impact. Thus, the effect of preventing the patch antenna 31 and the holding part 21 from being damaged can be obtained.

  Hereinafter, the thickness direction of the patch antenna 31 will be described as the Z-axis direction, the 12 o'clock direction as the Y-axis direction, and the 9 o'clock direction as the X-axis direction.

  For example, in the configuration of FIG. 10, since the substrate member 32 and the holding member 10 are in contact with each other, when movement in the rotation direction occurs, the relative rotation between the holding member 10 and the substrate member 32 occurs. The rotation is in the plane of the substrate member 32, and only the rotational movement of the Z-axis direction component is performed. Therefore, the shape of the holding portion 21 may be a convex shape that is gentle with respect to the rotation of the Z-axis direction component.

  The shape of the holding portion 21 facing the upper surface 3001 of the patch antenna 31 does not tilt relatively even when rotated in the Z-axis direction, and may be a flat surface, avoiding a decrease in impact resistance, and holding member 10. The effect which becomes easy to form is acquired.

  In addition, the shape of the holding portion 21 facing the side surfaces 3002, 3003, 3004, and 3005 of the patch antenna 31 may be a gently convex quadratic curved surface that draws an arc in the Z-axis rotation direction, resulting in reduced impact resistance. The effect which becomes easy to form the holding member 10 is acquired, avoiding.

  Next, the escape portion 20 will be described. The relief portion 20 shown in FIG. 10 is missing by preventing the end corner portion 71 and the side corner portion 70 of the patch antenna 31 from contacting the holding member 10 when an impact is applied and the patch antenna 31 and the holding member 10 are in contact. This is a space provided to prevent this.

The relief part 20 can be provided three-dimensionally on the holding member 10 side facing the respective end corners 71 and all the twelve side corners 70 of the rectangular patch antenna 31. However, since the end corner portion 71 and the side corner portion 70 that are in contact with the substrate member 32 are unlikely to come into contact with the holding member 10, the corresponding relief portion 20 may be omitted, and a reduction in impact resistance is avoided. On the other hand, an effect of easily forming the holding member 10 is obtained.

  Further, when the patch antenna 31 rotates only with the Z-axis direction component, the side corner portion 70 parallel to the substrate member 32 among the side corner portions 70 of the patch antenna 31 is unlikely to contact the holding member 10. Therefore, of the side corners 70 of the patch antenna 31, only the side corners 70 perpendicular to the substrate member 32 are provided with the corresponding relief portions 20 in the holding member 10, and the patch antenna 31 is parallel to the board member 32. The relief portion 20 corresponding to the side corner portion 70 may be omitted, and an effect of simplifying and easily forming the holding member 10 while avoiding a decrease in impact resistance can be obtained.

  Thus, by providing the holding portion 21 and the relief portion 20 three-dimensionally, it is possible to prevent breakage of electronic components due to brittle materials such as the patch antenna 31 even when impact is applied from all directions, and separate components. Therefore, not only the number of parts can be reduced, but also the part cost and the assembly work cost can be reduced.

  Next, a modification of the first embodiment will be described.

  FIG. 12 is an enlarged view of a main part of a cross section taken along the alternate long and short dash line I in FIG. 1 showing the structure of a modified example of the holding member 10 according to the first embodiment of the present invention. When an impact other than the same plane occurs on the surface of the substrate member 32, that is, the impact may be received from the upper surface side or the lower surface side of the watch, as shown in FIG. 12, it faces the upper surface side of the patch antenna 31. The holding portion 21 may have a gentle convex shape, and there is an effect of improving the impact resistance regardless of the direction in which the rotation component is included. Moreover, the shape of the holding | maintenance part 21 should just be a moderate convex shape as a whole, and is good also as a shape comprised by the some curved surface as shown in FIG.13 and FIG.14.

  Accordingly, the holding member 10 according to the present invention has a clearance portion 20 due to a space for preventing the end corner portion of the patch antenna 31 from colliding with the surface facing the end corner portion, and the holding member 10 collides with the corner portion of the patch antenna 31. Thus, the patch antenna 31 and the holding member 10 are formed by connecting the holding portion 21 and the relief portion 20 with a smooth curve so that stress is not concentrated, and eliminating the corner on the holding member 10 side to make the surface gentle. To prevent damage.

  More specifically, the holding portion 21 has a shape in which the shortest distance from the patch antenna is different between the central portion 213 and the end portion 211, and the shortest distance of the central portion 213 is shorter than the end portion 211. As shown in FIG. 13, a portion 1 mm from the end 211 toward the center of the holding part is called an end boundary 212, and the center part 213 is from the end boundary 212 to the holding part center. If there is a distance of at least 1 mm from the end portion, a gentle curved surface can be formed from the end portion 211 to the central portion 213, and the stress caused by the impact of the collision with the patch antenna can be dispersed. The position of the end boundary 212 moves back and forth with respect to the distance depending on the size of the gap between the patch antenna and the holding member, the material and size of each, the fixing position and fixing force of the substrate member, and the like.

In the first embodiment, a rectangular parallelepiped patch antenna 31 has been described as an example for ease of explanation. However, the present invention is not limited to this, and a patch having an octagonal shape in a top view as shown in FIG. The same effect can be obtained by applying the present invention to the holding member 10 also at the corners of the antenna 31 and the ring-shaped antenna made of a brittle material as shown in FIGS. 16 and 17. The same applies to the embodiments described below.
[Second Embodiment]
Next, a second embodiment of the impact resistant structure in the holding member according to the present invention will be described.

FIG. 18 is a plan view showing the structure of the holding member 10 according to the second embodiment. The holding member 10 is disposed around the patch antenna 31, and the holding member 10 is provided with an escape portion 20 and a holding portion 21.

  18 differs from FIG. 6 in that the holding portion 21 has a comb-shaped groove and has a plurality of convex portions 2101. As an envelope shape connecting the tips of the convex portions 2101 of the holding portion 21, This is a point having a gentle convex shape when viewed from the upper surface side, and the other requirements are the same as those in FIG.

  Since the material of the holding member 21 is a resin as a structural material of the watch and is not intended to absorb shocks, the amount of deformation with respect to stress is small, but a comb-shaped groove is dug in the holding portion 21 and a plurality of convex portions. Since each of the convex portions 2101 is easily deformed by stress because it has a shape having 2101, the impact resistance is improved by absorbing the impact, compared with the case where there are no plural convex portions. .

  Hereinafter, the structure and effect of the holding portion 21 will be described in detail.

  The feature of the holding portion 21 is that a plurality of convex portions 2101 are provided and the envelope shape at the tip thereof is a gentle convex shape. The patch antenna 31 moved by the impact comes into contact with the tip surface of the convex portion 2101 provided in the holding portion 21, and the envelope shape of the plurality of tip surfaces is a gentle convex shape. In any case where the surface portion of the patch antenna 31 collides, the plurality of tip surfaces of the convex portions 2101 provided on the holding portion 21 come into contact with the patch antenna, so that stress due to impact is dispersed and an additional buffer member It is possible to prevent the patch antenna 31 from being damaged without the need for. Thereby, since an additional buffer member becomes unnecessary, the number of parts can be reduced, and parts cost and assembly cost can be reduced.

  In addition to this, each convex portion 2101 is deformed and absorbs shock when subjected to stress due to impact from the patch antenna 31, so that the impact resistance is improved as compared with the case where there are no plural convex portions. is there. Further, since the holding portion 21 has a plurality of convex shapes, a concave space is created, and an electronic component that needs to be installed in the vicinity of the patch antenna 31 can be arranged on the substrate member 32 so as to fit in the concave space. It is possible to contribute to improvement of reception characteristics and the like.

  When the holding member 10 and the board member 32 are combined, an electronic component cannot be disposed at a position where the holding member 10 and the board member 32 are in contact with each other. For example, an electronic component cannot be mounted in the region of the board member 32 corresponding to the shaded portion of the holding member 10 shown in FIG. Therefore, conventionally, electronic components to be arranged in the vicinity of the patch antenna 31 have to be mounted at distant positions. In this case, if the wiring from the patch antenna 31 to the signal processing circuit is long, the wiring resistance increases, so that the signal is attenuated and noise is likely to be mixed, and the reception characteristics are deteriorated.

  In addition, when a component for frequency tuning of the antenna is arranged at a location away from the antenna, the impedance and inductance due to the wiring are increased, which adversely affects the tuning frequency.

  In the present embodiment, since a chip such as a preamplifier IC, a filter IC, and a tuning capacitor can be arranged in a concave space created by forming the holding portion 21 into a plurality of convex shapes, the patch antenna 31 is provided. The wiring between each chip can be made extremely short, and wireless signals can be received without causing the above-mentioned problems.

When the shape and dimensions are set so that the portions of the plurality of convex portions of the holding portion 21 that are closest to the patch antenna 31 have a minimum distance that does not come into contact with the patch antenna 31, the patch antenna 31 is The moving distance until it comes into contact with the holding portion 21 and begins to be held is minimized, and there is an effect of reducing the shearing force applied to the portion where the patch antenna 31 is soldered to the board member 32. The reason for this is omitted because it has already been described.

Further, the comb-shaped groove of the holding portion 21 may be other than the comb shape, and may be a corrugated shape in which the shape of the front end surface of the plurality of convex portions 2102 is a smooth curved surface as shown in FIG. Since there are no corners on the holding portion 21 side, stress due to impact is dispersed, and both the patch antenna 31 and the holding portion 21 are less likely to be damaged, and the impact resistance is improved.
[Third Embodiment]
Next, a third embodiment of the impact resistant structure in the holding member according to the present invention will be described.

  FIG. 20 is a plan view showing the structure of the first holding member 10 according to the third embodiment.

  FIG. 20 is different from FIG. 6 in that a hollow portion 22 is provided at the back surface position of the holding portion 21 of the holding member 10. Since other requirements are the same as those in FIG. 6, description of common requirements is omitted here.

  Since the material of the holding member 10 is resin and is not intended for shock absorption, the amount of deformation with respect to stress is small. However, by providing the holding portion 21 with the hollow portion 22, the thickness of the holding portion 21 is reduced, Since the amount of elastic deformation in the holding portion 21 is greatly increased, the stress when the patch antenna 31 collides can be reduced, and damage to the patch antenna 31 can be prevented. Further, since the hollow portion 22 has a larger space than the concave portion of FIG. 18, many electronic components 501 that need to be installed in the vicinity of the patch antenna 31 are arranged on the substrate member 10 so as to be accommodated in the space of the hollow portion 22. Can contribute to further improvement of noise characteristics and the like. In addition, since the electronic component 501 can be disposed in the escape portion 20 and the wiring with the patch antenna 31 can be shortened, the same effect as described above can be obtained.

  Furthermore, an electric wiring pattern may be arranged on the surface of the patch antenna side substrate member immediately below the hollow portion 22. Since the board member surface on the patch antenna side is in contact with the holding member 10, the electric wiring pattern is often avoided, and the electric wiring pattern is concentrated on the board member surface on the opposite side, and the degree of freedom is lost. If the electric wiring pattern can be arranged on the surface of the patch antenna side substrate member directly below the hollow portion 22, the wiring can be three-dimensionally crossed using the through holes, and the degree of freedom of layout in component mounting is increased.

  21 is a cross-sectional view of the holding member 10 and the patch antenna 31 taken along the alternate long and short dash line II in FIG. Since the impact on the watch may be impacted from the upper surface side or the lower surface side, the holding portion can be provided by providing the hollow portion 22 in the vicinity of the upper surface side of the patch antenna 31 so as to be substantially parallel to the holding portion 21. It is possible to increase the amount of elastic deformation 20 and reduce the stress applied to the surface portion of the patch antenna 31 at the time of collision.

  The hollow portion 22 arranged in the side surface direction of the patch antenna 31 may be formed so as to penetrate the holding member 10 from the lower surface side to the upper surface side, but the depth of the hollow portion 22 can be increased without penetrating. As shown in FIG. 21, the structure on the upper surface side of the holding member 10 is not changed from that before the hollow portion 22 is set by making it equal to or less than the thickness of the patch antenna 31, so that the strength of the holding member 10 is ensured. It becomes possible to do.

  Next, a modification of the third embodiment according to the present invention will be described.

  FIG. 22 is a plan view showing the structure of the second holding member 10 according to the third embodiment. 22 differs from FIG. 20 in that the hollow portion 22 and the escape portion 20 are not closed spaces.

  As shown in FIG. 20, the hollow portion 22 of the closed space includes a wall E on the holding portion 21 side, two walls F and G on both sides thereof, and a wall D facing the wall E. That is, the hollow portion 22 is located on the back surface of the holding portion 21. The hollow portion 22 is provided for the purpose of reducing the thickness of the holding portion 21 with which the patch antenna 31 collides. The wall E and the walls F and G are related to the deformation amount and strength of the holding portion 21 and cannot be eliminated. . However, the wall D is related only to the overall strength of the holding member 10, and the wall D may be omitted if the overall strength is satisfied. Thereby, since the shape of the holding member 10 becomes simple, there exists an effect which becomes easy to shape | mold. In this case, it is desirable to eliminate the wall D in the hollow portion 22 in the direction where the possibility of applying an impact is low so as not to reduce the impact resistance of the holding member 10. By eliminating the wall of the hollow portion 22 as described above, a large electronic component that does not fit in the hollow portion 22 of the closed space can be disposed in the vicinity of the patch antenna 32.

  If there is no wall H in the escape portion 20, the corner portion of the patch antenna 32 does not need to be in contact, and only relates to the overall strength of the holding member 10. Is not necessary. Thereby, since the holding member 10 has a simple shape, molding becomes easy, and a large electronic component that does not fit in the escape portion 20 in the closed space can be disposed in the vicinity of the patch antenna 32.

  23 is a cross-sectional view of the holding member 10 and the patch antenna 31 taken along the alternate long and short dash line III in FIG. The hollow portion 22 may be provided so as to penetrate the holding member 10 from the lower surface side to the upper surface side, and the wall D may be eliminated. However, the depth of the patch antenna 31 is not penetrated through the hollow portion 22 as shown in FIG. Or the wall D may be eliminated. As a result, the structure on the upper surface side of the holding member 10 does not change from that before the hollow portion 22 is installed, so that the strength of the holding member 10 can be ensured.

Further, the escape portion 20 may be continuous with the outer shape of the holding member 10, and there is an effect that the holding member 10 can be easily molded.
[Fourth Embodiment]
Next, a fourth embodiment of the impact resistant structure in the holding member according to the present invention will be described.

  FIG. 24 is a cross-sectional view showing the structure of the holding member 10 according to the fourth embodiment. 24 is different from FIG. 5 in that a dividing portion 15 is provided so as to pass through the escape portion 20 of the holding member 10. FIG. 25 is a three-dimensional view showing the structure of the holding member 10 divided by the dividing unit 15 of FIG.

  When the present invention is applied to the holding member 10 three-dimensionally, it is necessary to form a reverse gradient shape, and it becomes difficult to secure a draft necessary for molding with a mold. By being divided into two parts as shown in FIG. 25A and FIG. 25B, the reverse gradient shape is eliminated, and an effect of facilitating injection molding with a mold can be obtained.

In practice, there may be a step due to a dimensional error at the joint of the divided portions, but the divided portion 15 is arranged so as to pass through the escape portion 20 that does not contact the patch antenna 31. The stress due to the impact is not concentrated on the step portion, and the holding member 10 is prevented from being damaged.
[Fifth Embodiment]
Next, a fifth embodiment of the impact resistant structure in the holding member according to the present invention will be described.

FIG. 26 is a plan view from the upper surface direction showing the structure of the holding member 10 according to the fifth embodiment. FIG. 27 is a three-dimensional view of the patch antenna 31 including the feeding electrode 312 incorporated in the holding member 10 of FIG. The feeding electrode 312 is a component for propagating high-frequency energy between the antenna electrode 311 and the substrate member 32 and performing impedance matching of the antenna by its shape, and is an important component that affects the performance of the antenna.

  26 differs from FIG. 6 in that the patch antenna 31 includes a feeding electrode 312 and the holding unit 21 and the patch antenna are arranged so that the holding unit 21 of the holding member 10 facing the feeding electrode 312 does not come into contact with the feeding electrode 312. This is that the electrode escape portion 25 having a gap wider than the gap with 31 is provided. Since the electrode escape portion 25 is provided, the patch antenna 31 moves when an impact is applied, and even when the surface portion of the patch antenna 31 and the holding portion 21 of the holding member 10 are in contact with each other, the power feeding electrode 312 is held by the holding member 10. There is an effect of preventing deterioration of antenna characteristics due to a shape change due to wear or breakage of the feeding electrode 312.

Next, an ideal shape setting method for the holding member according to the present invention will be described.
The ideal shape of the holding member 10 is a shape that can be held without concentrating stress on both the patch antenna 31 and the holding member 10, regardless of the direction in which the patch antenna 31 moves. A high impact resistance structure can be obtained even with respect to the impact from the direction.

  FIG. 28A shows an outline 317 when the patch antenna 31 is viewed from the upper surface side, and a corner portion 70 of the patch antenna 31.

  FIG. 28B shows all the positions that can be taken by the outline 317 by setting the parallel movement distance and rotation angle allowed for the patch antenna 31 when an impact is applied to the patch antenna 31 of FIG. Are the added outlines 318.

  The parallel movement distance and the rotation angle allowed for the patch antenna 31 are preferably small from the viewpoint of stability of the antenna characteristics by improving the positioning accuracy. However, in actuality, mounting error, dimensional error, amount of gap at the fixed location, assembly It occurs due to the necessary gap.

  FIG. 28C shows the outermost outline 319 of the addition outline 318 and the side corner movement range 708 of FIG. Since the movement in the rotation direction is taken into account, each side of the outermost line 319 excluding the side corner part movement range 708 has a gently convex shape toward the center of the patch antenna 31. The shape of the side corner portion movement range 708 is a shape close to a circle when there is little parallel movement and movement in the rotation direction.

  FIG. 29A shows the patch antenna 31 on the holding member 10 along the holding portion 21 set along the outermost line 319 in FIG. 28C and along the side corner movement range 708 in FIG. This is an example in which an escape portion 20 in which a gap that does not contact the holding member 10 is set is provided. For the reasons described above, the holding portion 21 has a gently convex shape, and the escape portion 20 has a shape similar to a circle.

  In FIG. 29B, the holding portion 21 and the relief portion 20 of FIG. 29A are connected by a smooth curve, and the corner on the holding member 10 side is eliminated. FIG. 29B shows an ideal shape of the holding member 10. Hereinafter, the operation when an impact is applied to the shape of FIG. 29B will be described.

FIG. 30 is a diagram when the patch antenna 31 of FIG. 29B is moved by an impact. 30A shows the parallel movement of the patch antenna 31 in the lower right direction of the drawing, FIG. 30B shows the clockwise rotation of the drawing, and FIG. 30C shows the drawing of the drawing in addition to the clockwise rotation of the drawing. It is an example of parallel translation in the upper left direction. The escape portion 20 is set by adding a gap based on the end portion moving range 708 obtained by overlapping all cases in which the patch antenna 31 can move. Even if it exists, the edge part of the patch antenna 31 does not contact the holding member 10, and stress is not applied to the side corner part, so that the patch antenna 31 is not easily damaged, and does not require an additional buffer member and has high impact resistance. There is an effect that can be obtained.

  Since the shape of the holding portion 21 is set based on the outermost line 319 obtained by superimposing all cases where the patch antenna 31 itself can move, no matter how the patch antenna 31 moves. The contact portion between the holding portion 21 and the patch antenna 31 is in a state of being nearly parallel. Further, since the holding portion 21 has a gently convex shape, the patch antenna 31 is held while the stress due to contact is dispersed, and there is an effect that high impact resistance can be obtained.

  Further, since the holding portion 21 and the relief portion 20 are connected with a smooth curved surface, stress due to impact is less likely to concentrate on the holding member 10 side, and the holding member 10 is less likely to be damaged, and high impact resistance is obtained. effective.

  The above example has been described as an example of a two-dimensional shape with respect to a specific cross-sectional direction, but can also be applied to other cross-sectional directions and three-dimensional shapes in the same way, and when an impact in any direction is applied However, the shape of the holding member 10 having high impact properties can be obtained.

The present embodiment may be applied to a part or all of the surfaces of the holding member facing the patch antenna 31. Further, although the present embodiment has been described by taking the patch antenna 31 as an example, the present embodiment can be similarly applied as long as it is an electronic component made of another brittle material.
The brittle material is not limited to ceramic, and may be a brittle sintered body such as ferrite, inorganic glass, or sapphire, amorphous, crystalline, or the like.

DESCRIPTION OF SYMBOLS 10 ... Holding member, 20 ... Escape part, 21 ... Holding part, 23 ... Fixing member, 25 ... Electrode escape part,
31 ... Patch antenna, 32 ... Substrate member, 70 ... Side corner, 71 ... End corner

Claims (14)

Electronic components,
A board member for mounting the electronic component;
A holding member for holding the outer periphery of the electronic component;
With
The electronic component is
Multiple faces,
A corner portion that is a portion where the adjacent surfaces intersect,
An end corner portion that is a portion where the side corner portions intersect;
Have
The holding member is
While having a holding portion on the surface facing the side corner portion, and having a relief portion at a position facing the end corner portion,
The distance between the said electronic component and the said holding member was the shortest in the center part of the said holding | maintenance part, The electronic device characterized by the above-mentioned. The holding part is
The electronic device according to claim 1, wherein the electronic device has a convex shape toward the electronic component. The holding part is
Have multiple irregularities,
The electronic apparatus according to claim 1, wherein when the apexes of the convex portions facing the electronic component are connected, the connected shape is convex toward the electronic component. The holding part is
In the surface facing each surface of the electronic component,
The thickness direction of the electronic component is the M axis,
When the direction perpendicular to the M axis is the N axis,
4. The electronic apparatus according to claim 1, wherein a convex shape is formed toward one or both of the M axis and the N axis toward the electronic component. The shape of the space in the escape portion is
The electronic device according to any one of claims 1 to 4, wherein the electronic device has a semicircular shape, a square shape, or a mountain shape. The holding member is
In the part facing the end corner on the side of fixing the electronic component to the substrate member,
The electronic device according to claim 1, wherein the escape portion is not provided. The holding member is
The adjacent escape portion and the holding portion are
The electronic apparatus according to claim 1, wherein the electronic apparatus is connected by a curved surface. The holding member is
The electronic device according to claim 1, further comprising a hollow portion formed in a space for increasing an elastic deformation amount of the holding portion on a back surface of the holding portion. The electronic device according to claim 8, wherein the depth of the hollow portion is equal to or less than or equal to the thickness of the patch antenna. The hollow part is
The electronic apparatus according to claim 8, wherein the electronic apparatus is continuous with a space for storing other electronic components. The hollow part is
I lost a part of the wall,
The electronic device according to claim 8 or 9, characterized in that. The escape portion is
The electronic device according to claim 1, wherein the electronic device is connected to a space for storing other electronic components. The holding member is
The electronic apparatus according to claim 1, wherein the electronic apparatus is divided into two parts, the substrate member side and the opposite side. The electronic device according to claim 1, wherein the electronic component is made of a brittle material.

Images