JP6669990B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device in which a substrate structure is housed in a housing.

  2. Description of the Related Art Conventionally, various electronic devices in which a substrate structure is housed in a housing are known (for example, see Patent Documents 1 to 3). Here, as an example of a structure for accommodating the board structure in the housing, the following structure can be given.

  FIG. 10 is a diagram illustrating an example of a housing structure of a substrate structure in a housing in a conventional electronic device.

  In the electronic device 6 shown in FIG. 10, a board structure 61 in which a board 611 is combined with various components 612 is housed in a housing 62. The electronic device 6 employs a structure in which a groove 621a into which the side edge 611a of the substrate 611 of the substrate structure 61 is fitted is provided on the inner wall surface 621 of the housing 62. According to this structure, the board structure 61 is inserted into the housing 62 from the opening 62a of the housing 62 in the insertion direction D61 such that the side edge 611a of the board 611 is fitted along the groove 621a. The structure 61 can be easily accommodated.

  By the way, some electronic devices are configured such that various attachment objects such as cables and antennas can be attached from the outside of the housing. In many cases, such electronic devices have a structure in which a component to be mounted to which a mounting target is mounted is mounted on a substrate, and the substrate structure is housed in a housing with the mounting portion exposed.

  In an electronic device of this type, when an object to be mounted is attached to a component to be attached, the component to be attached is attached together with the substrate structure due to, for example, the play between the substrate holding groove and the substrate as described above. It may move. Such movement of the mounted component is troublesome for the worker performing the mounting operation, and it is desirable that the movement be suppressed as much as possible.

Japanese Utility Model Laid-Open No. 3-033088 Japanese Patent Application Laid-Open No. 2007-059808 Patent No. 3846082

  At this time, in the vicinity of the side edge of the substrate fitted into the groove, it is conceivable to suppress the movement by narrowing the groove. However, when the mounting position of the component to be mounted is away from the side edge of the substrate, etc., the movement of the component to be mounted is suppressed only by narrowing the groove due to the bending of the substrate due to the force applied during the mounting operation. May not be possible. Further, there is a problem that the cost is increased when the structure of the housing is changed to make the groove for holding the substrate narrow.

  The present invention has been made in view of the above circumstances, and provides an electronic device in which the movement of a component to be mounted during the work of mounting the component to be mounted on the component to be mounted is favorably suppressed while suppressing the cost. With the goal.

  In order to solve the above problems, an electronic apparatus according to the present invention includes a board structure having at least a board on which a component to be mounted is mounted, and a groove provided with a side edge of the board. A housing that has one wall and a second wall facing the board with a gap therebetween, and that accommodates the board structure in a state where a mounting location of the mounting target on the mounted component is exposed; A holding member that holds and releases the vicinity of the component to be mounted on the board by suppressing relative movement with respect to the second wall and supporting the holding and release by access from outside the housing. It is characterized by the following.

  Here, in the electronic device of the present invention, a concave portion provided on one of the substrate and the housing, and a convex portion provided on the other side and entering the concave portion when the side edge is fitted into the groove. , May be further provided.

  Further, in the electronic device of the present invention, the holding member may hold the vicinity of the attached component via a spacer having a thickness corresponding to the gap.

  In the electronic device according to the aspect of the invention, the holding member may be a rod member that penetrates the second wall and a cylindrical member that is attached to the substrate and into which the rod member is inserted. A push rivet may be provided which includes a tubular member whose peripheral wall is expanded on the side opposite to the insertion side of the rod member in the substrate when inserted.

  In the electronic device according to the aspect of the invention, the housing may be combined with the first housing portion and the second housing portion such that the outer walls partially overlap each other to form the second wall. The holding member suppresses the relative movement of a portion of the second wall where an outer wall of the first housing portion and an outer wall of the second housing portion overlap with each other. May hold the substrate.

  Further, in the electronic device of the present invention, the attached component may be an electrical component that handles a signal for wireless communication, and the holding member may be formed of a non-conductive material.

  In this electronic device, the object to be mounted may be an antenna, and the electric component may be an antenna connector.

  In the electronic device according to the aspect of the invention, the relative movement with respect to the second wall in the vicinity of the component to be mounted on the board is suppressed by the holding member. Accordingly, not only the movement of the substrate structure due to the backlash between the substrate holding groove and the substrate, but also the bending of the substrate in the vicinity of the component to be mounted is suppressed. As a result, the movement of the component to be attached during the work of attaching the component to the component to be attached is favorably suppressed. For such suppression, auxiliary holding by a holding member at one location near the component to be attached is sufficient. Further, the holding member can be attached by a simple additional processing on an existing housing or the like, for example, by providing an access hole in the housing or the substrate. In view of the fact that the existing housing can be used, the processing is simple, and the like, the cost of the holding member is reduced. As described above, according to the present invention, it is possible to obtain an electronic device in which the movement of the component to be attached during the work of attaching the component to the component to be attached is suppressed while reducing the cost.

FIG. 1 is a schematic diagram illustrating a device system in which an electronic device according to an embodiment of the present invention is mounted. FIG. 2 is a perspective view illustrating the electronic device that performs wireless data communication illustrated in FIG. 1. FIG. 3 is a diagram illustrating the device main body from which an antenna is removed. FIG. 4 is a diagram showing the device main body from which a bezel has been removed. FIG. 5 is a diagram illustrating a latch mechanism for an upper side edge in FIG. 4 of the substrate. FIG. 5 is a diagram illustrating a latch mechanism for a lower side edge in FIG. 4 of the substrate. FIG. 5 is a partial plan view of the vicinity of the antenna connector in the device main body shown in FIG. 4 when viewed from an opening side of a case, excluding the antenna connector so that push rivets can be seen. FIG. 8 is an enlarged view of a region A11 in FIG. 7. FIG. 9 is a diagram schematically showing how the push rivets shown in FIGS. 7 and 8 are attached. It is a figure which shows an example of the accommodation structure of the board | substrate structure in the housing | casing in the conventional electronic device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram showing a device system equipped with an electronic device according to an embodiment of the present invention.

  The device system 1 illustrated in FIG. 1 is a data logger that collects data transmitted from a plurality of external devices, and includes an electronic device 10 that performs wireless data communication, an electronic device 20 that performs wired data communication, The control device 30 includes a control device 30, a power device 40, and a device base 50.

  One device base 50 is provided for each device, for a total of four devices. Each device is inserted and installed from the opening 51 of each device base 50 in the insertion direction D11. A connection connector is installed on the back side of the opening 51 of the device base 50, and is connected to the connector of the inserted device. Further, the four device bases 50 are mechanically and electrically connected to each other, and the device system 1 as a data logger is constructed.

  FIG. 2 is a perspective view showing the electronic device that performs wireless data communication shown in FIG.

  The electronic device 10 shown in FIG. 2 includes a device main body 110 and an antenna 120. The antenna 120 has an antenna body 121 and a detachable connector 122 integrally formed, and the detachable connector 122 is detachably attached to the device main body 110.

  The device main body 110 is a housing 111 in which a substrate structure described later is housed. The housing 111 includes a resin case 111 a and a bezel 111 b made of resin and covering the front surface of the device main body 110.

  FIG. 3 is a diagram illustrating the device main body from which the antenna is removed, and FIG. 4 is a diagram illustrating the device main body from which the bezel is removed.

  An opening 111a-1 in the case 111a to which the bezel 111b is attached is provided with a step 111a-2 shifted inward by the thickness of the bezel 111b. The bezel 111b is attached so as to cover the opening 111a-1 of the case 111a such that the step 111a-2 fits inside the bezel 111b.

  In the case 111a, the following substrate structure 112 is inserted from the opening 111a-1 in the insertion direction D12 and accommodated. The board structure 112 has a board 112b on which an antenna 120 is mounted and on which an antenna connector 112a is mounted as an electric component for handling a signal for wireless communication. A board structure 112 is constructed by combining the board 112b, a LAN connector 112c, various switches 112d, a display 112e, a metal frame 112f, and the like.

  When the board construction 112 is accommodated in the case 111a and the bezel 111b is attached, the attachment portion 112a-1 in the antenna connector 112a is exposed as shown in FIG. Attachment / removal connector 122 of antenna 120 is attached to attachment point 112a-1. In addition, the LAN connector 112c, various switches 112d, the display 112e, and the like are also exposed from the bezel 111b.

  Attachment point 112a-1 in antenna connector 112a has a male screw formed on the outer periphery. On the other hand, a female screw is formed on the inner periphery of the detachable connector 122 of the antenna 120. The antenna 120 is attached to the attachment portion 112a-1 such that the female screw of the attachment / detachment connector 122 is screwed with the male screw of the attachment portion 112a-1 in the antenna connector 112a.

  Here, in the case 111a of the housing 111, a pair of vertically opposed side edges 112b-1 of the substrate 112b fits into inner surfaces of a pair of vertically opposed first walls 111a-3 in FIG. A pair of grooves 111a-4 are provided. The outer surfaces of the first wall 111a-3 of the case 111a and a pair of first walls 111b-1 opposed to each other in the up and down direction in the bezel 111b shown in FIG. 3 are flush with each other. The body 111 forms a pair of first walls 111c opposed in the vertical direction in the figure.

  The groove 111a-4 illustrated in FIG. 4 extends from the opening 111a-1 to the inside of the case 111a along the insertion direction D12 of the substrate structure 112. The board structure 112 is slid in the insertion direction D12 such that the side edge 112b-1 of the board 112b is fitted along the groove 111a-4. In addition, the substrate 112b of the substrate structure 112 accommodated in the case 111a is disposed closer to a second wall 111a-5 located on the right side in the figure among a pair of left and right side walls in the figure.

  In the present embodiment, a second wall 111a-5 of the case 111a, a second wall 111b-2 located on the right side of the pair of left and right side walls of the bezel 111b shown in FIG. Are combined. With this combination, the housing 111 forms a second wall 111d located on the right side in the drawing of the pair of left and right side walls in the drawing. The outer surface of the second wall 111a-5 of the case 111a and the outer surface of the second wall 111b-2 of the bezel 111b are flush with each other to form the outer surface of the second wall 111d of the housing 111.

  The inner surface of the second wall 111d of the housing 111, that is, the inner surface of the second wall 111a-5 of the case 111a is separated from the substrate 112b of the substrate structure 112 by a gap S11 as shown in FIG. Face to face.

  In the present embodiment, each of the pair of side edges 112b-1 of the board 112b is locked to the pair of first walls 111a-3 of the case 111a by the following latch mechanism.

  FIG. 5 is a diagram showing a latch mechanism for the upper side edge in FIG. 4 of the substrate, and FIG. 6 is a diagram showing a latch mechanism for the lower side edge in FIG. 4 of the substrate.

  The upper latch mechanism is provided on the first wall 111a-3 and the concave portion 112b-2 provided on the upper side edge 112b-1 of the substrate 112b to be fitted into the groove 111a-4 of the upper first wall 111a-3. And the convex portion 111a-6 provided. The protruding portion 111a-6 is provided at the tip of a cantilever 111a-7 that is bendable in a bending direction D13 provided on the first wall 111a-3.

  The lower latch mechanism includes a concave portion 112b-3 provided on a lower side edge 112b-1 of the substrate 112b that fits into the groove 111a-4 of the lower first wall 111a-3, and a first wall 111a-3. 3 is provided with a convex portion 111a-8. The convex portion 111a-8 is provided at the tip of a cantilever 111a-9 that is bendable in a bending direction D14 provided on the first wall 111a-3.

  When the substrate structure 112 is inserted in the insertion direction D12 from the opening 111a-1 of the case 111a, the upper and lower cantilevers 111a-7 and 111a-9 are bent, and the side edge 112b-1 of the substrate 112b is formed into the groove 111a-4. Pass through. When the substrate structure 112 is inserted all the way into the case 111a, the cantilevers 111a-7 and 111a-9 return, and the convex portions 111a-6 and 111a-8 enter the concave portions 112b-2 and 112b-3 to engage. Stop.

  In the present embodiment, in the substrate structure 112, the side edge 112b-1 is fitted into the groove 111a-4 as described above, and the substrate 112b locked by the latch mechanism further uses a push rivet described below. And is held in the case 111a. The push rivet is intended to auxiliaryally hold the vicinity of the antenna connector 112a with respect to the substrate 112b originally held by the insertion of the side edge 112b-1 into the groove 111a-4.

  FIG. 7 is a partial plan view of the vicinity of the antenna connector in the device main body shown in FIG. 4 when viewed from the opening side of the case, excluding the antenna connector so that the push rivet can be seen. . FIG. 8 is an enlarged view of a region A11 in FIG. FIG. 9 is a diagram schematically showing a state of attachment of the push rivets shown in FIGS. 7 and 8.

  The push rivet 113 is a holding member that auxiliaryally holds the vicinity of the antenna connector 112a on the board 112b by suppressing relative movement with respect to the second wall 111d of the housing 111. The push rivet 113 includes a rod member 113a and a cylindrical member 113b, each of which is formed of resin.

  The rod member 113a includes a rod body 113a-1 penetrating the second wall 111d of the housing 111 as described later, and a dish-shaped head 113a-2. The tubular member 113b includes a cracked barrel 113b-1 penetrating the substrate 112b, and an annular flange portion 113b-2.

  First, the cylindrical member 113b is attached so that the flange portion 113b-2 faces the second wall 111a-5 side of the case 111a and penetrates the substrate 112b. At this time, the cylindrical member 113b is attached to the substrate 112b with the resin washer 114 interposed between the flange portion 113b-2 and the substrate 112b. Thereby, the distance from the substrate 112b to the surface of the flange portion 113b-2 of the cylindrical member 113b becomes substantially equal to the gap S11 between the substrate 112b and the second wall 111a-5 of the case 111a. The resin washer 114 is selected from a plurality of sizes of resin washers so as to function as a spacer having a thickness corresponding to the gap S11 between the substrate 112b and the second wall 111d of the housing 111, and is provided for use. It is a thing.

  Subsequently, the rod member 113a is attached by access from the outside of the housing 111. As shown in FIG. 9, in the present embodiment, the through-hole 111 b-2 a through which the rod body 113 a-1 passes is formed by the second wall 111 b-2 of the bezel 111 b constituting the second wall 111 d of the housing 111. It is provided in. The rod body 113a-1 has the rod body 113a-1 penetrated through the through hole 111b-2a of the second wall 111b-2 of the bezel 111b, and the end of the step 111a-2 of the case 111a is grazed and inserted into the cylindrical member 113b. Is done. As a result of this insertion, as shown in FIG. 8, in the front-end cracked tube 113b-1 of the tube member 113b, the front-end cracked peripheral wall 113b-1a is expanded on the side opposite to the insertion side of the rod member 113 in the substrate 112b. .

  The insertion of the rod member 113a prevents the cylindrical member 113b from falling off the substrate 112b. Furthermore, when the cracked peripheral wall 113b-1a is expanded, the substrate 112b is pressed against the second wall 111d of the housing 111 with the resin washer 114 and the flange 113b-2 interposed therebetween. As a result, the vicinity of the antenna connector 112a on the board 112b is restrained from relative movement with respect to the second wall 111d of the housing 111, and is held auxiliary.

  Further, the push rivet 113 can complete the auxiliary holding state with respect to the vicinity of the antenna connector 112a as described above, when the operator pushes the rod member 113a by hand. Further, by applying a somewhat strong force to the head 113a-2 of the rod member 113a, the rod member 113a can be removed without any special tool or the like to release the auxiliary holding in the vicinity of the antenna connector 112a. Can be.

  In the electronic device 10 described above, the push rivet 113 suppresses relative movement of the substrate 112b near the antenna connector 112a with respect to the second wall 111c. Accordingly, not only the movement of the substrate structure 112 caused by the play between the substrate holding groove 111a-4 and the substrate 112b, but also the bending of the substrate 112a near the antenna connector 112a is suppressed. As a result, the movement of the antenna connector 112a during the work of attaching the antenna 120 to the antenna connector 112a is favorably suppressed. For such suppression, auxiliary holding by the push rivet 113 at one location near the antenna connector 112a is sufficient. Further, the push rivet 113 can be attached by simple additional processing to an existing housing or the like, such as providing a through hole 111b-2a for access in the housing 111 or the substrate 112b. The cost of the push rivet 113 is reduced in view of the fact that the existing housing can be used, the processing is simple, and the like. As described above, in the electronic device 10 of the present embodiment, the movement of the antenna connector 112a during the work of attaching the antenna 120 to the antenna connector 112a is favorably suppressed while the cost is suppressed.

  Here, in the electronic device 10 of the present embodiment, a latch mechanism including the concave portions 112b-2 and 112b-3 of the substrate 112b and the convex portions 111a-6 and 111a-8 of the housing 111 is provided. Thereby, the original holding of the substrate 112b by the fitting of the side edge 112b-1 into the above-described groove 111a-4 is also strengthened.

  Further, in the electronic device 10 of the present embodiment, the push rivet 113 closes the vicinity of the antenna connector 112a via the resin washer 114 as a spacer having a thickness corresponding to the gap S11 between the substrate 112b and the second wall 111d of the housing 111. Hold. As a result, the gap S11 is substantially filled, and the movement of the antenna connector 112a is further suppressed.

  Further, in the electronic device 10 of the present embodiment, the push rivet 113 is employed for auxiliary holding of the board 112b near the antenna connector 112a. This makes it possible to supplementally hold and release the vicinity of the antenna connector 112a on the board 112b by a simple operation of inserting and removing the rod member 113a into and out of the cylinder member 113b, so that the cost is further reduced. It has become.

  In the electronic device 10 according to the present embodiment, the housing 111 includes the case 111a (first housing portion) and the bezel 111b (second housing portion) in which the outer walls partially overlap with each other. They are combined so as to form a wall 111d. Then, the push rivet 113 suppresses relative movement of the substrate 112b with respect to a portion of the second wall 111d where the second wall 111a-5 of the case 111a and the second wall 111b-2 of the bezel 111b overlap. Hold auxiliary. Accordingly, the substrate 111d is held on a strong portion of the second wall 111d of the housing 111 where the outer walls overlap, and the holding strength is improved.

  Further, in the electronic device 10 of the present embodiment, the head 113a-2 of the rod member 113a of the push rivet 113 is a thin plate-shaped member. For this reason, the head 113a-2 of the bar member 113a does not interfere with other adjacent devices when the device is loaded on the device system 1 shown in FIG.

  Further, in the electronic device 10 of the present embodiment, the antenna connector 112a as a component to be attached to which the component is attached on the board 112b is an electrical component for handling a signal for wireless communication. On the other hand, the push rivet 113 is a resin part formed of a non-conductive material. Thereby, electromagnetic disturbance to a wireless communication signal flowing through the antenna connector 112a, a pattern connected to the antenna connector 112a on the board 112b, and the like is favorably suppressed.

  Further, in the electronic device 10 of the present embodiment, as described above, the mounting target is the antenna 120, and the electrical component as the component to be mounted is the antenna connector 112a. In this embodiment, since the wireless communication signal flowing through the antenna connector 112a is easily affected by electromagnetic disturbance, the effect of suppressing the disturbance due to the push rivet 113 being formed of a non-conductive material is effectively enjoyed. It has become.

  The embodiment described above merely shows a typical embodiment of the present invention, and the present invention is not limited to this embodiment. That is, various modifications can be made without departing from the gist of the present invention. As long as the configuration of the electronic device of the present invention is provided even by such a modification, the electronic device is, of course, included in the scope of the present invention.

  For example, in the above-described embodiment, the electronic device 10 that performs wireless data communication in the device system 1 as a data logger is illustrated as an example of the electronic device according to the present invention. However, the electronic device according to the present invention is not limited to this. The electronic device according to the present invention may be, for example, another electronic device in the above-described device system 1, or may be an electronic device mounted on another device system such as a measuring instrument system. Alternatively, an electronic device or the like that functions independently without being mounted in such a device system may be used, and the electronic device according to the present invention does not ask a specific application mode.

  Further, in the above-described embodiment, as an example of the board structure according to the present invention, the board structure 112 formed by combining various components such as the LAN connector 112c in addition to the board 112b is illustrated. However, the substrate structure according to the present invention is not limited to this, and may be, for example, one composed of only one substrate.

  In the above-described embodiment, the antenna 120 and the antenna connector 112a are illustrated as examples of the mounting target and the mounted component according to the present invention. However, the object to be attached and the part to be attached according to the present invention are not limited to these, and may be, for example, a cable and a cable connector to which the cable is connected. The mounting object and the component to be mounted according to the present invention are not limited to a specific component mode as long as one of them is a pair of components that are mounted on the other.

  In the embodiment described above, the push rivet 113 is illustrated as an example of the holding member according to the present invention. However, the holding member according to the present invention is not limited to this, and the specific mode of the holding member is not limited as long as the holding member can be held and released by access from the outside of the housing. Another aspect of the holding member according to the present invention may be, for example, a resin screw or the like that is inserted into a through hole of a housing and fits into a screw hole provided in a substrate.

DESCRIPTION OF SYMBOLS 1 Device system 10, 20 Electronic device 30 Control device 40 Power supply device 50 Device base 110 Device main body 111 Case 111a Case 111a-1 Opening 111a-2 Step portion 111a-3, 111b-1, 111c First wall 111a-4 Groove 111a-5, 111b-2, 111d Second wall 111a-6, 111a-8 Convex part 111a-7, 111a-9 Cantilever 111b Bezel 112 Board structure 112a Antenna connector 112a-1 Attachment point 112b Board 112b-1 Side edge 112b-2, 112b-3 recess 112c LAN connector 112d switch, etc. 112e display 112f metal frame 113 push rivet 113a rod member 113a-1 rod body 113a-2 head 113b cylinder member 113b-1 tip-break cylinder 11 3b-1a Peripheral wall 113b-2 Flange part 114 Resin washer 120 Antenna 121 Antenna body 122 Detachable connector D11, D12 Insertion direction D13, D14 Bending direction S11 Gap

Claims (7)

A board structure having at least a board on which a component to be attached to which the attachment object is attached is mounted,
A first wall provided with a groove into which a side edge of the substrate is fitted, and a second wall facing the substrate with a gap therebetween, and a mounting position of the mounting target on the mounted component is exposed; A housing for accommodating the substrate structure in a state where
A holding member capable of holding and releasing the vicinity of the component to be mounted on the board by holding the auxiliary movement while suppressing the relative movement with respect to the second wall;
An electronic device comprising:   A latch mechanism comprising a concave portion provided on one of the substrate and the housing, and a convex portion provided on the other and which enters the concave portion when the side edge is fitted into the groove. The electronic device according to claim 1, wherein:   The electronic device according to claim 1, wherein the holding member holds the vicinity of the mounted component via a spacer having a thickness corresponding to the gap. The holding member,
A rod member penetrating the second wall;
A cylindrical member to which the rod member is inserted by being attached to the substrate, wherein the peripheral wall is expanded on the side of the substrate opposite to the insertion side of the rod member when the rod member is inserted. When,
The electronic device according to any one of claims 1 to 3, wherein the electronic device is a push rivet including: Wherein the housing is a combination of a first housing portion and a second housing portion such that the outer walls partially overlap each other to form the second wall;
The holding member holds the substrate while suppressing the relative movement of a portion of the second wall where an outer wall of the first housing portion and an outer wall of the second housing portion overlap with each other. The electronic device according to any one of claims 1 to 4, wherein The attached component is an electrical component that handles a signal for wireless communication,
The electronic device according to claim 1, wherein the holding member is formed of a non-conductive material. The mounting object is an antenna,
The electronic device according to claim 6, wherein the electric component is an antenna connector.