JP6141560B2 - Electronic equipment and assembly structure thereof - Google Patents

Description

  The present invention relates to an assembly structure of an electronic device having a casing composed of a plurality of members.

  In a conventional electronic device, an assembly structure is employed in which one casing member is rotated and attached to the other casing member in order to increase the positioning accuracy of the two casing members when the plurality of casing members are assembled. For example, in a control board box according to Patent Document 1, an operator engages an engagement piece provided on one housing member with a slit provided on the other housing member, and the engagement portion is a rotation support shaft. As described above, one housing member is rotated and attached.

Japanese Patent Laid-Open No. 10-65349

  In the assembly structure of the conventional electronic device, since it is necessary to engage the engaging piece with the slit, there is a problem that the assembling property is poor.

  The present invention has been made to solve the above-described problems, and an object thereof is to improve assemblability in an electronic apparatus in which one casing member is rotated and attached to the other casing member. .

An electronic apparatus according to the present invention includes a first housing member and a second housing member that constitute a housing, a notch-shaped groove formed on one side of the first housing member, and a second housing member. And a projecting piece that can be inserted from the opening of the groove and abuts the bottom of the groove and serves as a rotation support shaft of the second housing member relative to the first housing member , and projects from the base of the projecting piece. The protruding piece side step portion has a shape that covers a part of the opening of the groove, and includes a groove side step portion that hooks the protruding piece side step portion to prevent the protruding piece from coming off the groove .

  According to the present invention, since the protruding piece can be easily inserted from the opening of the groove, the assemblability is improved as compared with the conventional assembly structure provided with the engaging piece and the slit.

It is a perspective view which shows the structural example of the electronic device to which the assembly structure which concerns on Embodiment 1 of this invention is applied. FIG. 2 is an enlarged view of a portion surrounded by a frame line A in FIG. 1. 4 is a perspective view illustrating a configuration example of a base member in an electronic device to which the assembly structure according to Embodiment 1 is applied. FIG. 4 is a side view showing a base member and a cover member in the middle of assembly in the electronic device to which the assembly structure according to Embodiment 1 is applied. FIG. FIG. 5 is an enlarged view of a portion surrounded by a frame line B in FIG. 4. FIG. 3 is a side view showing a base member and a cover member that have been assembled in the electronic device to which the assembly structure according to Embodiment 1 is applied. FIG. 7 is an enlarged view of a portion surrounded by a frame line C in FIG. 6. FIG. 5 is a perspective view showing a base member and a cover member in the middle of assembly in the electronic device to which the assembly structure according to Embodiment 1 is applied. FIG. 9 is an enlarged view of a portion surrounded by a frame line D in FIG. 8. It is an enlarged view which shows the part corresponded to the frame line A of FIG. 1 among the electronic devices to which the assembly structure which concerns on Embodiment 2 of this invention is applied. It is an enlarged view which shows the part corresponded to the frame line B of FIG. 4 among the electronic devices to which the assembly structure which concerns on Embodiment 2 is applied.

Hereinafter, in order to explain the present invention in more detail, modes for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 is a perspective view illustrating a configuration example of an electronic apparatus 1 to which the assembly structure according to Embodiment 1 is applied. FIG. 2 is an enlarged view of a portion surrounded by a frame line A in FIG. The housing of the electronic device 1 is composed of two members, a first housing member and a second housing member. In the first embodiment, the base member 10 made of sheet metal and the second housing member are used as the first housing member. A cover member 20 made of sheet metal is used. A circuit board 11 is installed on the base member 10, a circuit board 21 is installed on the cover member 20, and these circuit boards 11 and 21 are connected by a connecting member. The connecting member may be a flexible flat cable (FFC) 2 or a flexible printed circuit board (FPC) having a planar structure as shown in FIG. 1, or a cable having another shape. The assembly structure applied to the electronic apparatus 1 includes a groove 14 and a projecting piece 24.

FIG. 3 is a perspective view showing a configuration example of the base member 10, and shows the base member 10 of FIG. 1 as viewed from the back side.
Of the four sides of the base member 10, two fitting recesses 12 and a fitting recess 13 are formed on one of a pair of two opposing sides. Two grooves 14 are formed on the other of the two opposing sides of the set. The groove 14 has a shape in which one side of the base member 10 is cut out, and is an opening that opens upward. Further, a groove-side step portion 15 that covers a part of the opening of the groove 14 is formed. In order to make it easier to insert a projecting piece 24 to be described later into the groove 14, it is desirable that the width of the opening portion of the portion not covered with the groove side step portion 15 is larger than the width of the projecting piece 24.

Each of the four sides of the cover member 20 has a bent edge.
On the edge of the cover member 20 facing one side where the fitting recess 12 and the fitting recess 13 of the base member 10 are formed, there are two fitting claws 22 and a fitting piece 23 with the edge cut out. Is formed. The two fitting recesses 12 are fitted into the two fitting claws 22 when the base member 10 and the cover member 20 are attached. The fitting piece 23 is positioned one step inside the edge of the cover member 20, and when the base member 10 and the cover member 20 are attached, the base member 10 has a gap between the edge and the fitting piece 23. One side is sandwiched, and the fitting protrusion 23 a formed on the fitting piece 23 is fitted into the fitting recess 13 of the base member 10.

  Further, two projecting pieces 24 that can be inserted into the two grooves 14 are formed on the edge of the cover member 20 that faces one side where the groove 14 of the base member 10 is formed. A projecting piece side step portion 25 and a rotation positioning portion 26 are formed at the base of the projecting piece 24, and a stepped portion 27 is formed at the tip of the projecting piece 24. The projecting piece side step 25 and the rotation positioning unit 26 are arranged on both sides of the projecting piece 24 therebetween, but the projecting piece side step 25 is caught by the groove step 15 as will be described later. For example, the protruding piece side step portion 25 and the rotation positioning portion 26 may be arranged together on either side of the protruding piece 24.

Next, the assembly procedure of the base member 10 and the cover member 20 will be described.
FIG. 4 is a side view showing the base member 10 and the cover member 20 during assembly. FIG. 5 is an enlarged view of a portion surrounded by a frame line B in FIG. FIG. 6 is a side view showing the base member 10 and the cover member 20 that have been assembled. FIG. 7 is an enlarged view of a portion surrounded by a frame line C in FIG. 4 to 7, the base member 10 is shown in a cross section cut so as to pass through the groove 14. FIG. 8 is a perspective view showing the base member 10 and the cover member 20 during assembly. FIG. 9 is an enlarged view of a portion surrounded by a frame line D in FIG.

  The operator first connects the circuit boards 11 and 21 with the FFC 2, and inserts the protruding piece 24 of the cover member 20 from the opening of the groove 14 of the base member 10. Alternatively, the operator may insert the protruding piece 24 of the cover member 20 into the groove 14 of the base member 10 and connect the circuit boards 11 and 21 with the FFC 2 while holding the cover member 20 with a jig or the like. Subsequently, as shown in FIGS. 4 and 5, the operator makes the cover member 20 in the direction of the arrow E with the projecting piece 24 in contact with the bottom of the groove 14 and the contact portion as the rotation support shaft F. Rotate to A fitting claw 22 and a fitting piece 23 are formed on the side of the cover member 20 opposite to the side serving as the rotation support shaft F. When the cover member 20 rotates in the direction of arrow E, the fitting is performed. As shown in FIGS. 6 and 7, the joint claw 22 is fitted into the fitting recess 12 of the base member 10 and the fitting protrusion 23a of the fitting piece 23 is fitted into the fitting recess 13 of the base member 10. The cover member 20 is attached to the base member 10.

In the conventional assembly structure such as Patent Document 1 described earlier, it is necessary to make the FFC 2 long and have a margin so that the engaging piece can be easily engaged with the slit. However, if the FFC 2 is lengthened, the FFC 2 is likely to be bitten between the base member 10 and the cover member 20 when the base member 10 is rotated in the direction of arrow E, which may cause a defect.
On the other hand, in the assembly structure according to the first embodiment, the projecting piece 24 can be inserted from the opening of the groove 14, so that the assemblability is good even if the FFC 2 is lengthened and no allowance is provided.

  Further, when the projecting piece 24 is inserted into the groove 14 to the base, the rotation positioning portion 26 formed at the base of the projecting piece 24 contacts the outer wall surface of the base member 10, so that the position of the rotation support shaft F is changed. By rotating the cover member 20 in a fixed state, the cover member 20 is always rotated along a predetermined rotation locus. In the absence of the rotation positioning portion 26, the rotation locus may change depending on how the protrusion 24 is inserted into the groove 14, and there is a possibility that the components on the circuit board 21 may come into contact with the base member 10. By forming 26, the cover member 20 can be attached to the base member 10 with a fixed rotation locus at all times, and damage to parts can be prevented more reliably. In addition, the cover member 20 always rotates with a predetermined rotation path, so that the fitting claw 22 and the fitting recess 12 can be easily fitted, and the fitting piece 23 and the fitting recess 13 can be easily fitted.

  Further, as shown in FIGS. 8 and 9, during the rotation of the cover member 20, the projecting piece side step portion 25 formed at the base of the projecting piece 24 enters the groove 14, thereby covering the cover member 20 during the rotation. Even if the member 20 is displaced upward, it is possible to prevent the protruding piece side step portion 25 from being caught by the groove side step portion 15 of the groove 14 and the protruding piece 24 from coming off the groove 14.

  Further, as shown in FIGS. 6 and 7, when the cover member 20 is attached to the base member 10, the stepped portion 27 formed at the tip of the protruding piece 24 presses the inner wall surface of the base member 10, Tension is applied to the base member 10 and the cover member 20. For this reason, the base member 10 and the cover member 20 can be fixed to the rotation support shaft F side without using a fastening member to suppress rattling, and the generation of abnormal noise during vibration can be prevented. The projection 27 may be a projection such as a fitting projection 23a instead of the stepped portion 27 having a bent tip, but the stepped portion 27 can create a larger step than the projection, and the base Shaking can be suppressed by pressing the inner wall surface of the member 10 more strongly.

  As described above, according to the first embodiment, the assembly structure of the electronic device 1 is formed in the notch-shaped groove 14 formed on one side of the base member 10 and the cover member 20, from the opening of the groove 14. Since it is configured to be provided with a projecting piece 24 that can be inserted and abuts against the bottom of the groove 14 and serves as the rotational support shaft F of the cover member 20 with respect to the base member 10, the projecting piece 24 can be easily removed from the opening of the groove 14. As a result, the assemblability is improved as compared with the conventional assembly structure provided with the engagement piece and the slit. Accordingly, when the base member 10 and the cover member 20 are connected by the FFC 2, it is not necessary to make the FFC 2 longer and have a margin as in the conventional assembly structure in which the engagement piece and the slit are provided. Therefore, biting can be prevented.

  In addition, according to the first embodiment, the assembly structure of the electronic device 1 is a shape that covers the protruding piece side stepped portion 25 protruding from the base of the protruding piece 24 and a part of the opening of the groove 14. Since the structure is provided with the groove-side step portion 15 that hooks the one-side step portion 25 to prevent the protruding piece 24 from coming off the groove 14, the assemblability can be further improved.

  Further, according to the first embodiment, the protruding piece 24 has the stepped portion 27 at the tip, and the stepped portion 27 covers the inner wall surface of the base member 10 with the base member 10 and the cover member 20 attached. Since it is configured to press, rattling between the base member 10 and the cover member 20 can be suppressed.

Embodiment 2. FIG.
The electronic device to which the assembly structure according to the second embodiment is applied may be the same as the electronic device 1 shown in FIG. Here, in the electronic device 1 to which the assembly structure according to the second embodiment is applied, an enlarged view of a portion corresponding to the frame line A in FIG. 1 is shown in FIG. 10, and a portion corresponding to the frame line B in FIG. An enlarged view is shown in FIG. 10 and 11, the same or corresponding parts as those in FIGS. 1 to 9 are denoted by the same reference numerals and description thereof is omitted.

  In the assembly structure according to the second embodiment, the projecting piece 24 has a curved portion 28 that swells on the same side as the rotation locus of the cover member 20. As described in the first embodiment, when the upper cover member 20 is attached to the lower base member 10 by rotating it in the direction of arrow E shown in FIG. Is centered on the rotation support shaft F and bulges outward. In this configuration, as shown in FIG. 11, the bending portion 28 also has a shape that bulges outward about the rotation support shaft F.

As shown in FIG. 5 of the first embodiment, when the projecting piece 24 has a planar shape, the projecting piece 24 comes into line contact with the inner edge or the outer edge of the groove 14 according to the rotational position of the cover member 20 or the groove. 14 is in surface contact with the bottom surface of the shaft 14, the rotation support shaft F is difficult to be determined, and rotation is likely to be unstable.
On the other hand, as shown in FIG. 11 of the second embodiment, when the curved portion 28 is formed on the projecting piece 24, the concave surface side of the curved portion 28 comes into line contact with the inner edge or the outer edge of the groove 14. The axis F is easily determined and the rotation is easily stabilized. Therefore, assemblability is improved.

  As described above, according to the second embodiment, the projecting piece 24 has the curved portion 28 that swells on the same side as the rotation trajectory of the cover member 20, so that the rotation of the cover member 20 is stable and the assemblability is improved. More improved.

  In the first and second embodiments, the groove 14 is formed in the base member 10 and the projecting piece 24 is formed in the cover member 20. On the contrary, the projecting piece 24 is formed in the base member 10 and the cover member is formed. The groove 14 may be formed in the groove 20. Further, the cover member 20 is rotated and attached to the base member 10. However, the base member 10 may be rotated and attached to the cover member 20. Moreover, although it was set as the structure which forms the groove | channel 14 and the protrusion piece 24 2 sets, number and arrangement | positioning may be arbitrary. Furthermore, although it was set as the structure which fixes the base member 10 and the cover member 20 by the fitting of the dents 12 and 13 for fitting, the fitting nail | claw 22, and the fitting piece 23, it is set as the structure fixed using fastening members, such as a screw. Also good.

  In addition to the above, within the scope of the present invention, the present invention can freely combine each embodiment, modify any component of each embodiment, or omit any component of each embodiment. It is.

  The assembly structure of an electronic device according to the present invention is suitable for use in an electronic device that assembles members connected by a connection member.

  DESCRIPTION OF SYMBOLS 1 Electronic device, 2 FFC (connection member), 10 Base member (1st housing member), 11, 21 Circuit board, 12 Fitting for fitting, 13 Fitting for fitting, 14 Groove, 15 Groove side step, 20 Cover member (Second housing member), 22 fitting claw, 23 fitting piece, 23a fitting protrusion, 24 protruding piece, 25 protruding piece side step portion, 26 rotation positioning portion, 27 stepped portion, 28 bending portion, E rotation locus , F Rotating spindle.

Claims (5)

A first housing member and a second housing member constituting the housing;
A notch-shaped groove formed on one side of the first housing member;
A projecting piece that is formed on the second housing member, can be inserted from the opening of the groove, and is in contact with the bottom of the groove and serves as a rotation support shaft of the second housing member with respect to the first housing member and,
A projecting piece side step projecting from the base of the projecting piece;
An electronic device comprising: a groove-side step portion that covers a part of the opening of the groove and prevents the protrusion piece from being detached from the groove by hooking the protrusion-side step portion.   The electronic device according to claim 1, wherein the protruding piece has a curved portion that swells on the same side as one rotation locus of the first housing member or the second housing member. The protruding piece has a stepped portion at the tip,
The electronic device according to claim 1, wherein the stepped portion presses an inner wall surface of the first housing member in a state where the first housing member and the second housing member are attached.   The electronic device according to claim 1, wherein the first housing member and the second housing member are connected by a connection member. A notch-shaped groove formed on one side of the first housing member;
A projecting piece that is formed on the second housing member, can be inserted from the opening of the groove, contacts the bottom of the groove, and serves as a rotation support shaft of the second housing member with respect to the first housing member; ,
A projecting piece side step projecting from the base of the projecting piece;
An assembly structure of an electronic apparatus, comprising: a groove-side step portion that covers a part of the opening portion of the groove and that prevents the protrusion piece from being detached from the groove by hooking the protrusion-side step portion .

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