JP2012157074A - Housing structure and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing structure and an electronic apparatus which correct warpage of a case without using a separate member.SOLUTION: A housing structure is composed of a first case 11 and a second case 12. The first case 11 and the second case 12 respectively include protrusions 11f, 12e, which contact with each other, at longitudinal one-end portions. The protrusion 11f extends toward the second case 12, and the protrusion 12e extends toward the first case 11. Contact surfaces of the protrusions 11f, 12e are disposed perpendicular to the first case 11 and the second case 12. An electronic apparatus includes a housing having the above-described housing structure.

Description

  The present invention relates to a housing structure using a split case and an electronic apparatus including a housing using the housing structure.

  Patent Document 1 discloses an information communication terminal device in which a lower case and an intermediate case are fixed with screws and the opposite side of the intermediate case is covered with an upper case.

  Also, Patent Document 2 discloses a mobile phone in which a deformation preventing member made of a rubber member is provided between a casing and internal components.

JP 2003-204381 A JP-A-5-235822

  By the way, in order to achieve waterproofing, there is a case where packing is sandwiched between cases, but in the case where the case is fixed with screws as in Patent Document 1, a large number of screws must be secured so as not to lose the reaction force of the packing. Become.

As shown in FIG. 10A, when the upper and lower cases 101 and 102 are combined, if warping occurs in at least one of the cases 101 and 102, as shown in FIG. -A step is generated at the end of 102.
However, in order to prevent the occurrence of warping of the case, it is necessary to newly provide a deformation preventing member as in Patent Document 2, for example.

  The subject of this invention is correcting the curvature of a case, without requiring another member.

  In order to solve the above problems, the invention described in claim 1 includes a box-shaped first case and a second case each having a bottom plate and an opening surface facing the bottom plate, and the first case. And the second case, the casing structure is formed by overlapping the opening surfaces of the first case and the second case, provided at the end of the bottom plate of each of the first case and the second case, A contact portion extending from one of the case and the second case toward the other bottom plate, and contacting each other at a contact surface perpendicular to the bottom plate of each of the first case and the second case; It is characterized by that.

  Invention of Claim 2 is the housing | casing structure of Claim 1, Comprising: The said contact part is the one end part of the longitudinal direction of each said baseplate of a said 1st case and a 2nd case. The protrusion is provided.

  The invention described in claim 3 is an electronic device including a casing having the casing structure described in claim 1 or 2.

  According to the present invention, the warp of the case can be corrected without using a separate member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a configuration of an embodiment of an electronic apparatus to which the present invention is applied and illustrating a use state in which a mobile phone is opened. It is a disassembled perspective view which shows one housing structure of the mobile telephone of FIG. It is sectional drawing which showed the engagement state of the 1st case and 3rd case of FIG. It is sectional drawing which also showed the contact state of a 1st case and a 2nd case with the engagement state of the 1st case and 3rd case of FIG. It is sectional drawing which also showed the contact state of a 2nd case and a 1st case with the engagement state of the 2nd case and 3rd case of FIG. It is sectional drawing which showed the engagement state of the 1st case and 2nd case of FIG. It is a partially broken perspective view which shows one housing structure of the mobile phone of FIG. It is an enlarged view of the housing | casing front-end | tip part of FIG. It is the top view (a) which showed the inside of the 1st case edge part which comprises the housing | casing edge part of FIG. 8, and the top view (b) which showed the inside of the 2nd case edge part. It is the side view (a) which shows an example at the time of combining an upper and lower case, and the side view (b) which showed the case where the level | step difference by the curvature of the upper and lower cases generate | occur | produced.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment)
FIG. 1 shows a use state in which a mobile phone is opened as a configuration of an embodiment of an electronic apparatus to which the present invention is applied. 1 is a first casing, 2 is a second casing, and 3 is a hinge portion. Reference numeral 4 denotes a display unit, and 5 denotes an operation unit. As shown in the figure, the first casing 1 and the second casing 2 are connected to each other so as to be foldable (openable and closable) via a hinge portion 3. The operation unit 5 is provided in the second casing 2.

  FIG. 2 shows the housing structure of the first housing 1 in an exploded manner. 11 is a first case, 12 is a second case, and 13 is a third case. As illustrated, the first housing 1 includes a first case 11, a second case 12, and a third case 13 disposed between the first case 11 and the second case 12. It is composed of

  The first case 11 is made of synthetic resin using PC (polycarbonate) ABS (acrylonitrile butadiene styrene), and an acrylic transparent plate 14 is integrated into a large opening corresponding to the display unit 4 by two-color molding. A packing groove 11a is formed around the entire inner surface. A pair of first engaging claws 11b (see FIG. 6) that are largely separated from each other on the inner surfaces of the left and right side portions of the first case 11 and a pair of third engaging claws 11d that are closer to the center between them. (See FIG. 3) are formed upright. The tip portions of the first engagement claw 11b and the third engagement claw 11d are both directed inward.

  The second case 12 is made of a synthetic resin made of glass fiber-containing PA (Polyamide), and is formed by standing protruding pieces 12a around the entire inner surface. On the inner surfaces of the left and right sides of the second case 12, a pair of first engagement pieces 12b (see FIG. 6) that are spaced apart from each other, and a single second engagement claw 12d (in the middle between them) FIG. 5) and are formed upright. Here, the engagement hole 12c is formed in the 1st engagement piece 12b, and the front-end | tip part of the 2nd engagement nail | claw 12d has faced inward. The engagement hole 12c corresponds to the first engagement claw 11b of the first case 11 as shown in FIG.

  The third case 13 is made of a metal made of a magnesium alloy, and a pair of third engaging protrusions 13d (see FIG. 3) are provided on the left and right sides of the outer peripheral surface of the thick portion 13a around the periphery, respectively. The individual second engaging protrusions 13c (see FIG. 5) are formed so as to protrude therebetween. These third engagement protrusions 13d correspond to the third engagement claws 11d of the first case 11 as shown in FIG. 3, and the second engagement protrusions 13c are as shown in FIG. Further, it corresponds to the second engaging claw 12d of the second case 12.

  In the case structure including the above engaging portions, for example, the third case 13 is overlapped on the first case 11, and the pair of third engaging claws 11d near the center are provided on both the left and right side portions. As shown in FIG. 2, it engages with the upper surface of the third engaging projection 13d.

  Then, the second case 12 is overlaid thereon, and each single second engaging claw 12d at the center is engaged with the lower surface of the second engaging projection 13c as shown in FIG. The pair of first engaging claws 11b that are largely separated from each other are engaged with the engaging holes 12c of the first engaging piece 12b as shown in FIG. Thereafter, the first case 11, the second case 12, and the third case 13 inside the first case 11 are fixed by screws at positions corresponding to the four corners of the third case 13. 1 is assembled.

  At this time, as shown in FIG. 4, the base side of the projecting piece 12a is in contact with the outer side of the distal end portion of the third engaging claw 11d, while projecting outside the first engaging claw 11b as shown in FIG. As shown in FIG. 5, the projecting piece 12a is pushed into the packing groove 11a while the piece 12a contacts. As a result, the first engaging claw 11b and the third engaging claw 11d are backed up by the projecting piece 12a and its base, and a packing (not shown) fitted in the packing groove 11a in advance is pressed by the projecting piece 12a. Pressure contact.

As described above, according to the case structure of the first case 1 of the embodiment, the first case 11 and the second case 12 made of synthetic resin and the third case 13 made of metal therein are Since the first engaging portions 11b, 12b, and 12c, the second engaging portions 12d and 13c, and the third engaging portions 11d and 13d are engaged with each other on both side surfaces, the three-part case 11 It can be firmly joined by pressing the lateral direction of 12.13.
Therefore, even when the width is reduced while increasing the rigidity of the housing to make it a waterproof type, screwing can be reduced to only the four corners.

  Next, FIG. 7 is a partially broken view of the housing structure of the first housing 1, FIG. 8 is an enlarged view of the front end portion of the housing 1, and 15 and 16 are the first case. 11 and a cover attached to the tip of the second case 12 opposite to the hinge 3. FIG. 9A shows the inside of the end of the first case 11 that constitutes the end of the housing 1, and FIG. 9B shows the inside of the end of the second case 12. Is.

  That is, a small recess 11e is formed on the inner surface of the tip portion of the first case 11 opposite to the hinge portion 3, and the small recess 11e is formed on the inner surface of the tip portion of the second case 12 opposite to the hinge portion 3. A projection 12e is formed. The protrusion 12e contacts the protrusion 11f formed by the outer peripheral edge outside the small recess 11e, and thus forms a contact portion where the protrusion 12e and the protrusion 11f contact each other.

  In the illustrated example, as shown in FIG. 9 (a), two small concave portions 11e are arranged on the right side of the first case 11 and a single small concave portion 11e is provided on the left side, and as shown in FIG. 9 (b), Two protrusions 12e are arranged on the left side of the second case 12, and a single protrusion 12e is provided on the right side.

  And while forming the small hole 11g in the vicinity of the small recessed part 11e of the 1st case 11, and forming the engaging claw 11h in the small hole 11g, in the vicinity of the protrusion 12e of the 2nd case 12, An engagement claw 12g that enters the small hole 11g and engages with the engagement claw 11h is formed.

  In the illustrated example, as shown in FIG. 9A, a small hole 11g and an engaging claw 11h are provided inside a small recess 11e arranged on the right side of the first case 11, and a single small recess is provided on the left side. A small hole 11g and an engaging claw 11h are provided on the left side of 11e. Further, as shown in FIG. 9B, the engaging claw 12g is provided inside the two protrusions 12e arranged on the left side of the second case 12, and the engaging claw 12g is provided on the right side of the single protrusion 12e. Is provided.

  In the case structure including the above-described contact portion, the first case 11 and the second case 12 are joined together by the engaging portion described above, and at the same time, the second case 12 is inserted into the small recess 11e of the first case 11. The protrusions 12e are inserted, and the engaging claws 12g of the second case 12 are inserted into the small holes 11g of the first case 11, respectively.

  As a result, as shown in FIG. 8, the projection 11f of the first case 11 and the projection 12e of the second case 12 come into contact with each other, and the engaging claw 11h of the first case 11 and the second case 11 The 12 engaging claws 12g engage with each other.

  As described above, according to the housing structure of the first housing 1 of the embodiment, the protrusion 11f formed by the outer peripheral edge of the distal end portion of the first case 11 made of PCABS is formed on the second case 12 made of glass fiber PA. Since the second case 12 is warped due to molding or a difference in the molding material, the first case 11 is brought into contact with the projections 11f and 12e because it is in contact with the outside of the projection 12e provided at the tip. Can suppress the warpage and correct it.

  Conversely, even if the first case 11 is about to be warped, the second case 12 can suppress and correct the warp by the inner wall surface of the small recess 11e coming into contact with the inside of the protrusion 12e. it can.

  Moreover, the first case 11 and / or the second case 11 is also engaged with the engagement claw 11 h at the front end of the first case 11 and the engagement claw 12 g at the front end of the second case 12. The warp of the case 12 can be suppressed and corrected.

(Modification)
In the above embodiment, the cellular phone is used. However, the present invention is not limited to this, and may be used for all electronic devices such as a camera, a PDA, a notebook computer, a wearable computer, a calculator, and an electronic dictionary. it can.
In the embodiment, the second case is assembled after the third case is assembled to the first case. However, the first case is assembled after the third case is assembled to the second case. Anyway.
Furthermore, it is needless to say that other specific detailed structures can be appropriately changed.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
A housing structure including a first case, a second case, and a third case disposed between the first case and the second case,
A first engaging portion provided in the first case and the second case and engaged with each other;
A second engagement portion provided in the second case and the third case and engaged with each other;
A housing structure, comprising: a third engaging portion that is provided in the third case and the first case and engages with each other.

(Appendix 2)
The housing structure according to appendix 1, wherein the first case and the second case are made of synthetic resin, and the third case is made of metal.

(Appendix 3)
The housing structure according to appendix 1 or 2, wherein the engaging portion is provided on both side portions of the case.

(Appendix 4)
A housing structure composed of a first case and a second case,
A housing structure comprising a contact portion provided at an end portion of the first case and the second case and contacting each other.

(Appendix 5)
The housing structure according to appendix 4, wherein the contact portion is a protrusion provided at one end portion in the longitudinal direction of the case.

(Appendix 6)
An electronic device comprising a housing having the housing structure according to any one of appendices 1 to 5.

  According to the configuration of Supplementary Note 1, the fastening of the three-divided case is strengthened, and screwing can be reduced.

  Moreover, according to the structure of appendix 4, the curvature of a case can be corrected without using another member.

DESCRIPTION OF SYMBOLS 1 Case 11 1st case 11b 1st engaging claw 11d 3rd engaging claw 11e Small recessed part 11f Contact part (protrusion)
11g small hole 11h engagement claw 12 second case 12b first engagement piece 12c first engagement hole 12d second engagement claw 12e abutting portion (protrusion)
12g engaging claw 13 third case 13c second engaging protrusion 13d third engaging protrusion

Claims (3)

A box-shaped first case and a second case each having a bottom plate and an opening surface facing the bottom plate are provided, and the opening surfaces of the first case and the second case are overlapped with each other. A housing structure,
The first case and the second case are provided at end portions of the bottom plate, respectively, and extend from one of the first case and the second case toward the other bottom plate, respectively. And abutting portions that abut against each other on the abutting surface perpendicular to the bottom plate of each of the second cases,
A housing structure characterized by that.   The housing structure according to claim 1, wherein the contact portion is a protrusion provided at one end portion in the longitudinal direction of the bottom plate of each of the first case and the second case.   An electronic apparatus comprising a housing having the housing structure according to claim 1.

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