JP2013143356A - Battery fixing structure, and portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery fixing structure capable of saving a space and suppressing breakage due to impact when dropped.SOLUTION: A battery fixing structure fixes a battery to a housing formed by fitting a front case and a rear case. Near a boundary between one side surface of the battery and the other side surface adjacent to each other, a housing side battery fixing portion configured by a first fixing shape formed on the front case and a second fixing shape formed on a rear case adjacently to the first fixing shape, is disposed to face the one side surface of the battery via a predetermined clearance. The housing side battery fixing portion has a complementary shape with the one side surface of the battery, and the housing side battery fixing portion and the battery are fitted with each other. When the battery moves in a direction decreasing a clearance, the first fixing shape and the second fixing shape come into contact with the one side surface of the battery, thereby suppressing the movement of the battery.

Description

  The present invention relates to a battery fixing structure and a portable terminal. In particular, the present invention relates to a battery fixing structure for fixing a battery built in a portable terminal, and a portable terminal equipped with the battery fixing structure.

  In general, a mobile terminal represented by a mobile phone is generally fitted with two housings on the front side and the rear side. In the present specification, the two cases are referred to as a “front case” and a “rear case”, respectively. In addition, the term “casing” includes a front case and a rear case. In these portable terminals, a battery fixing shape is provided in the housing in order to fix a built-in battery.

  FIG. 9 is a perspective view showing a battery fixing structure of Comparative Example 1 related to the present invention. FIG. 10 is a diagram of the battery fixing portion. The rear case side fixing shape 7 and the battery side fixing shape 9 are cross-sectional views, and in other regions, the cross-sectional shape in the depth direction is overlaid. . As shown in FIG. 10, the convex rear case side fixing shape 7 formed on the rear case 4 is fitted to the concave battery side fixing shape 9 formed on the battery 5 to fix the battery 5. Like to do. In a general portable terminal, as in Comparative Example 1, a fixed shape on the housing side is provided only in one of the front case 2 and the rear case 4.

  FIG. 11 is a perspective view showing a battery fixing structure of Comparative Example 2 related to the present invention. As shown in FIG. 11, the battery fixing structure of Comparative Example 2 further includes a partition wall 10 on the front case side 2, and the battery 5 is fixed by both the rear case side fixing shape 7 and the partition wall 10 on the front case 2 side. ing. Thereby, the comparative example 2 implement | achieves the fixed structure which is hard to be damaged by the stress received from the battery 5 at the time of the fall of a portable terminal.

  Patent Document 1 discloses a battery pack that is housed in a mobile phone terminal and includes a SIM card presser. The battery pack has protrusions that are higher than the SIM card holder at the corners and ridges of the battery pack in order to avoid an impact when dropped from being applied to the battery body via the SIM card holder. With such a structure, even if the battery pack is dropped at the time of SIM card replacement or battery replacement, the impact on the battery body can be remarkably reduced by the protrusion receiving the impact of dropping.

JP 2003-338858 A

  The following analysis is given by the present invention.

  However, with the recent increase in capacity of batteries, the stress applied to the battery fixing shape when the portable terminal is dropped is increasing. Therefore, in the case of the battery fixing structure shown in Comparative Example 1, with the rear case side fixing shape 7 alone, when the drop impact is applied to the mobile terminal, the movement of the battery cannot be suppressed and the battery fixing shape on the housing side may be damaged. Has occurred.

  Further, Patent Document 1 describes a method for reducing the impact when the battery pack is dropped, but does not touch on the problem of the impact when the battery pack is dropped in a portable terminal. .

  On the other hand, since the battery fixing structure of Comparative Example 2 fixes the battery 5 with both the rear case side fixing shape 7 and the front case side partition wall 10 as described above, the stress can be dispersed against the drop impact. This can reduce the possibility of the battery fixing shape being damaged. However, since the partition wall 10 of the comparative example 2 is disposed between the printed circuit board 3 and the battery 5, there is a problem that various layout restrictions occur in the casing of the mobile terminal.

  In particular, when the mobile terminal is made thin or waterproof, it is difficult to provide the partition wall 10 of Comparative Example 2 in the housing due to layout restrictions. For example, FIG. 14 shows a battery fixing portion which is a waterproof compatible portable terminal (Comparative Example 3). As shown in FIG. 14, since the waterproof packing 13 is necessary, the UIM card 12 is arranged on the front case 2 side, and the partition wall 10 cannot be provided near the space S3.

  Moreover, when dealing with not only waterproofing but also thinning and multi-functionalization, the partition wall 10 of the comparative example 2 cannot often be used due to restrictions on the layout of other components. Therefore, in a portable terminal, a space-saving battery fixing structure that can be arranged regardless of the layout of other components is desired.

  Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery fixing structure that is space-saving and hardly breaks due to an impact such as dropping.

  A battery fixing structure according to a first aspect of the present invention is a battery fixing structure in which a battery is fixed inside a casing formed by fitting a front case and a rear case. A first fixed shape formed on the front case and disposed adjacent to the one side surface of the battery with a predetermined clearance in the vicinity of the boundary of the other side surface adjacent to the first side surface. And a second fixed shape formed in the rear case. Here, the case-side battery fixing portion has a shape complementary to one side surface of the battery, and the case-side battery fixing portion and the battery are fitted and the battery moves in a direction in which the clearance is eliminated. In addition, the first fixed shape and the second fixed shape are brought into contact with the one side surface of the battery, thereby suppressing the movement of the battery.

  A mobile terminal according to a second aspect of the present invention is a mobile terminal provided with at least one battery fixing structure according to the first aspect.

  According to the portable terminal of the present invention, it is possible to provide a battery fixing structure that is space-saving and is not easily damaged by an impact such as dropping.

It is a perspective view which shows the battery fixing structure which concerns on the 1st Embodiment of this invention. It is a figure which shows the battery fixing structure which concerns on the 1st Embodiment of this invention. It is a figure for demonstrating the 1st Embodiment of this invention. It is a figure for demonstrating the 1st Embodiment of this invention. It is a disassembled perspective view which shows the portable terminal which concerns on the 1st Embodiment of this invention. It is a figure which shows the battery fixing structure which concerns on the modification of the 1st Embodiment of this invention. It is a figure which shows the battery fixing structure which concerns on the 2nd Embodiment of this invention. It is a figure for demonstrating the 3rd Embodiment of this invention. It is a perspective view which shows the battery fixing structure of the comparative example 1 relevant to this invention. It is a figure which shows the battery fixing structure of the comparative example 1 relevant to this invention. It is a perspective view which shows the battery fixing structure of the comparative example 2 relevant to this invention. It is a figure for demonstrating the comparative example 2 relevant to this invention. It is CC sectional drawing of FIG. It is a figure which shows the battery fixing structure of the comparative example 3 relevant to this invention. It is a figure for demonstrating the comparative example 4 relevant to this invention. It is BB sectional drawing of FIG.

  First, the outline | summary of embodiment of this invention is demonstrated. Note that the reference numerals of the drawings added in the description of the outline of the embodiment are merely examples for helping understanding, and are not intended to be limited to the illustrated modes.

  The battery fixing structure in one embodiment of the present invention fixes the battery 5 to a casing formed by fitting the front case 2 and the rear case 4 as shown in any of FIGS. 1, 2, and 5. In the battery fixing structure, in the vicinity of the boundary between the one side surface 21 of the battery 5 and the other side surface 22 adjacent to the one side surface 21, it faces the one side surface 21 of the battery via a predetermined clearance (C1, C2, etc. in FIG. 2). A housing-side battery comprising a first fixed shape 8 formed on the front case 2 and a second fixed shape 7 formed on the rear case 4 adjacent to the first fixed shape 8. A fixing unit 20 is provided. Here, the case-side battery fixing portion 20 has a shape complementary to the one side surface 21 of the battery 5, and the case-side battery fixing portion 20 and the battery 5 are fitted and the battery 5 moves in a direction in which there is no clearance. Further, the first fixed shape 8 and the second fixed shape 7 are brought into contact with one side surface 21 of the battery 5, thereby suppressing the movement of the battery 5.

  As described above, the fixed shape of the battery is divided into the front case 2 and the rear case 4, so that when a shock such as dropping is applied, the fixed shape (first fixed shape 8, Since the second fixed shape 7) suppresses the movement of the battery 5, the stress due to the impact is dispersed, and the fixed shape of the battery can be prevented from being damaged.

  In the above battery fixing structure, as shown in FIG. 2, the clearances (C1, C2) of the first fixing shape 8 and the second fixing shape 7 with respect to the side surface 21 of the battery 5 are substantially the same. It is preferable that it is set to.

  In the above battery fixing structure, as shown in FIG. 2, the battery 5 has, on one side surface 21, a third fixing shape 9 that is a concave shape or a convex shape (a concave shape in the case of FIG. 2; The first fixed shape 8 and the second fixed shape 7 are set so that the respective clearances (C1, C2) with respect to the third fixed shape 9 are substantially the same. It is preferable that the battery fixing portion 20 and the third fixing shape 9 are fitted.

  In the battery fixing structure described above, the rear case 4 may have a groove into which the waterproof packing 13 is inserted (for example, the space S5 of the rear case 4 in FIG. 1 is a portion where the waterproof packing 13 abuts. ).

  In the battery fixing structure described above, as shown in FIG. 8, the front case 2 has a second fixing shape 7 facing the second fixing shape 7 on the surface opposite to the surface facing the battery 5. 4 fixed shapes 14 may be provided.

  In the above battery fixing structure, as shown in FIG. 2, the sheet metal 2 b may enter the first fixing shape 8.

  A mobile terminal according to an embodiment of the present invention includes at least one battery fixing structure.

  The mobile terminal may further be provided with a waterproof material (waterproof packing 13 or the like). That is, it is good also as a structure which comprises said battery fixing structure in a waterproof portable terminal.

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

[First Embodiment]
First, the configuration of the first embodiment and the configurations of Comparative Examples 1 to 4 will be described. Next, the viewpoint of strength against impact at the time of dropping will be described while comparing the first embodiment with Comparative Example 1. Next, the viewpoint of space saving will be described while comparing the first embodiment with Comparative Examples 2 to 4.

(Configuration of First Embodiment 1)
FIG. 5 is an exploded perspective view of the mobile terminal 100 according to the first embodiment of the present invention. As shown in FIG. 5, the mobile terminal 100 includes an LCD unit 1 made of a glass plate or LCD (Liquid Crystal Display), a front case 2 to which the LCD unit 1 is attached, a printed circuit board 3 included in a housing, A rear case 4 fitted to the front case 2, a battery 5 that is a power source, and a battery cover 6 that closes the battery 5 are provided. The front case 2 is an integrally molded product of resin 2a and sheet metal 2b.

  Next, the battery fixing structure of the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing a casing-side battery fixing portion 20 provided to fix the battery 5 and its peripheral portion. As shown in FIG. 1, the case-side battery fixing portion 20 includes a front case side fixed shape (first fixed shape) 8 formed on the front case 2 and a rear case side fixed shape (second shape) formed on the rear case 4. (Fixed shape) 7). As shown in FIG. 1, the front case side fixed shape (first fixed shape) 8 and the rear case side fixed shape (second fixed shape) 7 are arranged adjacent to each other.

  Moreover, the battery 5 to be fixed has a rectangular parallelepiped shape as shown in FIG. 5 and has four side surfaces (21 to 24). The position where the case side battery fixing unit 20 fixes the battery 5 is near the boundary between two side surfaces (21 and 22, 22 and 23, 23 and 24, 24 and 21) of the battery 5 for space saving. Is provided. In the first embodiment, the fixing portion is provided near the boundary between the side surface 21 and the side surface 22. However, the present invention is not limited to this, and a plurality of locations may be fixed.

  The case-side battery fixing portion 20 is disposed at a position corresponding to the vicinity of the boundary between the side surface 21 and the side surface 22 of the battery 5 so as to face the side surface 21 of the battery 5 via clearances C1 and C2. FIG. 1 shows the case-side battery fixing portion 20 arranged as described above.

  As shown in FIG. 2, the battery 5 has a concave battery-side fixed shape (third fixed shape) 9. On the other hand, the case-side battery fixing portion 20 has a shape complementary to the concave battery-side fixing shape 9, and the case-side battery fixing portion 20 and the battery-side fixing shape 9 are fitted. Further, the clearances (C1, C2) of the front case side fixed shape (first fixed shape) 8 and the rear case side fixed shape (second fixed shape) 7 with respect to the battery side fixed shape 9 are substantially the same. Is set as follows. When the battery 5 moves in a direction in which the clearances C1 and C2 disappear due to an impact such as dropping, the front case side fixed shape 8 and the rear case side fixed shape 7 are brought into contact with the battery side fixed shape 9, The movement of the battery 5 is suppressed.

  In addition, as shown in FIG. 2, the front case side fixed shape 8 has the sheet metal 2b partially inserted therein, thereby strengthening the close contact with the sheet metal 2b and increasing the strength.

(Comparative Example 1)
Next, the structure of the comparative example 1 is demonstrated, referring FIG. 9, FIG. FIG. 9 is a perspective view showing a battery fixing structure of Comparative Example 1. FIG. 9, components having the same functions as those in FIG. 1 are denoted by the same reference numerals. As can be seen by comparing FIG. 9 with FIG. 1 (first embodiment), the battery fixing structure on the housing side of Comparative Example 1 is composed of only the rear case side fixing shape 7, and the front case side fixing shape of FIG. 8 is not provided.

  FIG. 10 is a diagram of the battery fixing structure portion of FIG. 9, the rear case side fixing shape 7 and the battery side fixing shape 9 are cross-sectional views, and in other regions, the cross-sectional shape in the depth direction is overlaid. doing. 10, components having the same functions as those in FIG. 2 are denoted by the same reference numerals. As shown in FIG. 10, the convex rear case side fixing shape 7 formed on the rear case 4 is fitted to the concave battery side fixing shape 9 formed on the battery 5 to fix the battery 5. doing. Further, the rear case side fixed shape 7 has a clearance C <b> 3 with respect to the battery side fixed shape 9.

(Comparative Example 2)
Next, the configuration of Comparative Example 2 will be described with reference to FIGS. FIG. 11 is a perspective view showing a portable terminal having the battery fixing structure of Comparative Example 2. FIG. In Comparative Example 2, as shown in FIG. 11, a partition 10 formed on the front case 2 is provided between the battery 5 and the printed board 3 as a battery-fixing shape on the housing side. Moreover, the rear case side fixed shape 7 of the comparative example 1 shown in FIG. 10 is also provided. Accordingly, the battery 5 is fixed by both the partition wall 10 on the front case 2 side and the rear case side fixing shape 7 of the rear case 4.

  12 is a top view of the periphery of the partition wall 10 of FIG. 11, and FIG. 13 is a cross-sectional view taken along the line CC of FIG. 12 and 13, 12 is a UIM (User Identity Module) card, and 11 is a UIM card connector. Here, the UIM card 12 is an IC card in which contractor information issued by a mobile phone company is recorded. The UIM card 12 is inserted into a mobile terminal and used for user identification. As shown in FIG. 12, the UIM card 12 can be inserted into and removed from the UIM card connector 11 only when the battery 5 is removed.

(Comparative Example 3)
Next, the configuration of Comparative Example 3 will be described with reference to FIG. FIG. 14 is a diagram showing the battery fixing structure of Comparative Example 3. The rear case-side fixing shape 7 and the battery-side fixing shape 9 are cross-sectional views, and in other regions, the cross-sectional shape in the depth direction is overlaid. ing. The portable terminal of Comparative Example 3 has a waterproof function added to the portable terminal of Comparative Example 1. As can be seen by comparing FIG. 14 with FIG. 10 (Comparative Example 1), in FIG. 14, a waterproof packing 13 provided on the battery cover 6 is added to FIG.

(Comparative Example 4)
Next, the configuration of Comparative Example 4 will be described with reference to FIGS. 15 and 16. In Comparative Example 4, the printed circuit board 3 becomes larger as the mobile terminal becomes more multifunctional, and the arrangement of the printed circuit board 3 in Comparative Example 1 is changed. FIG. 15 is a top view of the printed circuit board 3. 16 is a cross-sectional view taken along the line BB in FIG. As shown in FIG. 16, the printed circuit board 3 is disposed so as to overlap the battery 5 in a planar manner.

(About strength against impact when dropped)
Next, the difference in operation resulting from the difference in configuration between the first embodiment and the comparative example 1 will be described. First, it is assumed that the mobile terminal 100 according to the first embodiment has dropped. The case where the greatest stress is generated in the case-side battery fixing unit 20 is when the case-side battery fixing unit 20 falls in a posture in which the case-side battery fixing unit 20 is grounded before the battery 5. FIG. 3 shows the drop direction by arrows. In the present embodiment, when the display screen of the LCD unit 1 of the mobile terminal 100 is the front, the attitude of grounding from the upper end of the mobile terminal is the attitude that causes the most stress. Also in FIG. 5, the dropping direction shown in FIG. 3 is indicated by an arrow.

  However, in the first embodiment, the dropping direction shown in FIGS. 3 and 5 causes the greatest stress on the case-side battery fixing part 20, but the case-side battery fixing part 20 is arranged at another position. In some cases, the most stressed part is in a different position.

  FIG. 3 is a diagram of the portion when the portable terminal 100 is dropped and the housing is grounded. The front case side fixed shape 8, the rear case side fixed shape 7, the battery side fixed shape 9, and the rear case 4 are shown. The cross-sectional portion shows a cross-sectional view, and in other regions, the cross-sectional shape in the depth direction is displayed in an overlapping manner. As shown in FIG. 3, when the casing of the mobile terminal 100 is grounded, the battery 5 is still falling due to the clearances C <b> 1 and C <b> 2, and then the battery-side fixing shape 9 and the casing-side battery fixing portion 20 collide. To do. FIG. 4 is a diagram showing a state where the battery side fixing shape 9 and the housing side battery fixing portion 20 collide with each other. Since the clearance C1 and the clearance C2 shown in FIG. 3 are set to be substantially the same, as shown in FIG. 4, the clearance C1 and the clearance C2 become substantially 0 simultaneously, and the front case side fixed shape 8 and the rear case The side fixing shape 7 abuts on the battery fixing shape 9, receives stress from the battery 5, and suppresses the movement of the battery 5. In this way, the stress generated in each of the fixed shapes (the front case side fixed shape 8 and the rear case side fixed shape 7) is dispersed.

  On the other hand, considering the case where the mobile terminal having the battery fixing structure of Comparative Example 1 falls, the battery 5 is still falling due to the clearance C3 when the casing of the mobile terminal is grounded. 9 and the rear case side fixed shape 7 collide (the figure when the battery side fixed shape 9 and the rear case side fixed shape 7 collide is not shown). In the case of the comparative example 1, the battery 5 is received only by the rear case side fixed shape 7 when dropped.

  As described above, when the first embodiment and the comparative example 1 are compared, in the first embodiment, both the front case 2 and the rear case 4 receive an impact from the battery 5 when dropped. Therefore, compared with the comparative example 1 which receives the impact from the battery 5 only by the rear case 4, the battery fixing structure with a low possibility of breakage can be provided.

  Further, the first embodiment can have a fixed cross-sectional area larger than that of the first comparative example. Specifically, in the first embodiment, the cross-sectional area of the fixed shape can be increased by the area of the portion where the front case side fixed shape 8 contacts the battery side fixed shape 9 when dropped. Therefore, the first embodiment can provide a battery fixing structure that can be made strong against stress from the battery 5 when dropped and has a low possibility of breakage.

  Furthermore, in the first embodiment, the sheet metal 2b is partially inserted into the front case side fixed shape 8, thereby strengthening the adhesion with the sheet metal 2b and increasing the strength. It is possible to provide a battery fixing structure with improved resistance to damage and low possibility of breakage.

(About space saving)
Next, problems of the partition wall 10 of Comparative Example 2 will be described. The partition wall 10 of the comparative example 2 has an advantage that it is strong against impact at the time of dropping as described above, but there is a problem that there are many restrictions on the layout in use. For example, the portable terminal of Comparative Example 2 cannot be applied to a portable terminal with a waterproof function. The reason for this is that in order to provide a waterproof function, it is necessary to provide a waterproof packing in the space S2 of FIG. 13, but when the waterproof packing 13 is provided in the space S2, the battery 5 is removed. The UIM card 12 cannot be taken in and out.

  Moreover, when the partition 10 of the comparative example 2 is arrange | positioned, the layout of the UIM card connector 11 and the UIM card 12 will be limited to the position shown in FIG. For example, if the UIM card connector 11 is arranged on the front case 2 side, the UIM card connector 11 is arranged adjacent to the partition wall 10, so that the UIM card 12 cannot be inserted / removed with the battery 5 removed. Therefore, there is a restriction that the UIM card connector 11 must be disposed on the rear case 4 side of the partition wall 10 as shown in FIG.

  Further, in Comparative Example 3, since a waterproof function is added, as shown in FIG. 14, the UIM card 12 is provided with a waterproof packing 13 provided on the battery cover 6 so that it can be inserted and removed only when the battery 5 is removed. Implemented to dive under. Therefore, the partition wall 10 of Comparative Example 2 is disposed at the position of the space S3 shown in FIG. 14 (however, the space S3 is the central portion in the width direction of the mobile terminal) because the UIM card 12 needs to be taken in and out. I can't.

  The waterproof function support and battery fixing structure in Comparative Example 2 and Comparative Example 3 described above are summarized below. First, the battery fixing structure using the partition wall 10 of Comparative Example 2 cannot be applied to a portable terminal having a waterproof function. On the other hand, the battery fixing structure of Comparative Example 3 can cope with the waterproof function, but cannot provide the partition wall 10. Therefore, as shown in FIG. 14, only the rear case side fixed shape 7 is subjected to stress from the battery 5 at the time of dropping, and the battery fixed shape may be damaged as in Comparative Example 1. There is.

  Further, as in Comparative Example 4, when the printed circuit board 3 becomes larger due to multifunctionalization and the printed circuit board 3 is arranged so as to overlap the battery 5 in a planar manner, the printed circuit board 3 is positioned at the space S4 (FIG. 16). The partition wall 10 of Comparative Example 2 cannot be provided. This is because the printed circuit board 4 passes through the space S4.

  As described above, as in Comparative Examples 3 to 4, it is understood that the partition wall 10 of Comparative Example 2 cannot be arranged due to restrictions on the layout of other components when it is waterproof or has multiple functions. That is, the conditions for using the battery fixing structure with the partition wall 10 of Comparative Example 2 are considerably limited. On the other hand, in the battery fixing structure of the first embodiment, the housing side battery fixing portion 20 (including the front case side fixing shape 8 and the rear case side fixing shape 7) is arranged at a position not related to the layout of other components. Yes. Specifically, the case-side battery fixing unit 20 realizes a space-saving structure that is not related to the layout of other components by fixing the vicinity of the boundary between two adjacent side surfaces of the battery 5.

  As described above, according to the battery fixing structure according to the first embodiment, it is possible to provide a battery fixing structure that saves space and is less likely to be damaged by an impact such as when dropped.

(Modification of the first embodiment)
Next, a modification of the first embodiment will be described with reference to FIG. FIG. 6 is a diagram showing a battery fixing structure according to a modification of the first embodiment. As can be seen by comparing FIG. 6 with FIG. 2 (first embodiment), in FIG. 6, the battery side fixed shape (third fixed shape) 9 is a convex shape, and the housing side battery fixed portion 20 is It has a shape complementary to the convex shape and is fitted to the battery 5. The front case side fixed shape (first fixed shape) 8 and the rear case side fixed shape 7 (second fixed shape) of the battery fixed shape 9 have substantially the same clearances (C1, C2). It is set to be.

  Also in the modification of the first embodiment, as described with reference to FIGS. 3 to 4, when the mobile terminal is dropped, the clearances C <b> 1 and C <b> 2 become 0 substantially at the same time, and the front case side fixed shape 8. The rear case side fixed shape 7 abuts on the battery fixed shape 9 and receives stress from the battery 5 to suppress the movement of the battery 5. In this way, the stress generated in each of the fixed shapes (the front case side fixed shape 8 and the rear case side fixed shape 7) is dispersed. Therefore, the same effect as the first embodiment can be obtained.

[Second Embodiment]
(Configuration of Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. The mobile terminal according to the second embodiment is provided with a waterproof function with respect to the mobile terminal 100 according to the first embodiment. FIG. 7 is a diagram showing portions for fixing the battery 5 in the mobile terminal according to the second embodiment. The front case side fixed shape 8, the rear case side fixed shape 7, the battery side fixed shape 9, and the rear case 4. A cross-sectional portion of the cross-sectional view shows a cross-sectional view, and in other regions, the cross-sectional shape in the depth direction is displayed in an overlapping manner. In FIG. 7, components having the same functions as those in FIG. 2 (first embodiment) are denoted by the same reference numerals, and the description thereof is omitted. As can be seen by comparing FIG. 7 with FIG. 2 (first embodiment), when the battery cover 6 is provided with a waterproof packing 13 and the rear case 4 is shielded by the battery cover 6 in FIG. The packing 13 is configured to perform a waterproof function.

  Further, in FIG. 7, in order to provide the waterproof packing 13, the rear case 4 is deleted in the portion S1 below the waterproof packing 13 (in FIG. 7, what is depicted in the upper part of the space S1 is This is the rear case 4 on the far side, and there is no rear case 4 under the waterproof packing 13). As a result, the printed circuit board 3 can be arranged in this portion, and the thickness is reduced. As described in the first embodiment, since the case-side battery fixing portion 20 receives an impact from the battery 5 in both the front case 2 and the rear case 4, S <b> 1 below the waterproof packing 13. Even if the rear case 4 is removed, sufficient strength against impact at the time of dropping can be obtained.

  Further, as described in Comparative Example 3, in Comparative Example 3, the partition wall 10 of Comparative Example 2 cannot be provided at the time of waterproofing, so that the impact at the time of dropping is received only by the rear case side fixed shape 7. Therefore, the fixed shape may be damaged. On the other hand, in the waterproof portable terminal having the battery fixing shape according to the second embodiment, the battery 5 due to the impact at the time of dropping can be received by both the front case side fixing shape and the rear case side fixing shape 7. As in the first embodiment, it is possible to provide a battery fixing shape that is not easily damaged by an impact when dropped.

  As described above, the same effects as those of the first embodiment can be obtained. Furthermore, according to the battery fixing structure of the second embodiment, it is possible to provide a battery fixing structure that is compatible with a waterproof function and can be applied to a thin mobile terminal.

  Also in the second embodiment, as shown in FIG. 2 (Embodiment 1), the sheet metal 2b is partially inserted into the front case side fixed shape 8, thereby strengthening the adhesion to the sheet metal 2b. Strength can be increased.

(Third embodiment)
Next, a third embodiment will be described. FIG. 8 is a cross-sectional view showing a battery fixing structure according to the third embodiment. In FIG. 8, components having the same functions as those in FIG. 7 (second embodiment) are denoted by the same reference numerals, and description thereof is omitted. As can be seen by comparing FIG. 8 with FIG. 7 (second embodiment), in FIG. 8, a rear case side fixed shape support portion (fourth fixed shape) 14 is newly added.

  As shown in FIG. 8, the rear case side fixed shape support portion 14 is disposed on the surface opposite to the surface on which the rear case side fixed shape 7 faces the battery 5, facing the rear case side fixed shape 7. . The rear case side fixed shape support portion 14 may be formed of the front case 2 or may be formed of another component.

  As described above, according to the battery fixing structure according to the third embodiment, in addition to the effects of the first embodiment, the rear case side fixed shape support portion 14 is further provided, so that the rear case side The bending which arises in the rear case side fixed shape 7 by the collision of the fixed shape 7 and the battery side fixed shape 9 can be suppressed.

  On the other hand, in the same way as in the first embodiment, the sheet metal 2b is partially inserted into the front case side fixed shape 8, whereby the adhesion with the sheet metal 2b can be strengthened and the strength can be increased.

  The battery fixing structure of the present invention can be applied to a mobile terminal so that the housing-side battery fixing portion is not easily damaged even when the mobile terminal is subjected to an impact when it falls. Further, the present invention is not limited to a portable terminal, and can be applied to various electronic devices having a built-in battery with a housing structure in which two housings are fitted.

  Note that, within the scope of the entire disclosure (including claims and drawings) of the present invention, the embodiments can be changed and adjusted based on the basic technical concept. Various combinations or selections of various disclosed elements (including each element of each claim, each element of each embodiment, each element of each drawing, etc.) are possible within the scope of the claims of the present invention. . That is, the present invention naturally includes various variations and modifications that could be made by those skilled in the art according to the entire disclosure including the claims and the drawings, and the technical idea.

1: LCD unit 2: Front case 2a: Resin 2b (of front case): Sheet metal (of front case) 3: Printed circuit board 4: Rear case 5: Battery 6: Battery cover 7: Rear case side fixed shape (second case) Fixed shape)
8: Front case side fixed shape (first fixed shape)
9: Battery side fixed shape (third fixed shape)
10: Bulkhead 11: UIM card connector 12: UIM card 13: Waterproof packing 14: Rear case side fixed shape support portion (fourth fixed shape)
20: Case side battery fixing portion 21, 22, 23, 24: Side surface (of battery) 31: Memory card adapter 32: Memory card 100: Portable terminal C1, C2, C3: Clearance

Claims (8)

A battery fixing structure for fixing a battery inside a housing formed by fitting a front case and a rear case,
A first fixed shape formed on the front case, disposed in the vicinity of a boundary between one side surface of the battery and the other side surface adjacent to the one side surface, with a predetermined clearance facing the one side surface of the battery; A housing-side battery fixing portion configured by a second fixing shape formed in the rear case adjacent to the first fixing shape;
The casing-side battery fixing portion has a shape complementary to the one side surface of the battery, and the casing-side battery fixing portion and the battery are fitted,
Suppressing the movement of the battery when the first fixed shape and the second fixed shape are in contact with the one side surface of the battery when the battery moves in a direction in which the clearance is eliminated. Battery fixing structure.   2. The battery fixing according to claim 1, wherein clearances of the first fixing shape and the second fixing shape with respect to the one side surface of the battery are set to be substantially the same. Construction. The battery has a third fixed shape which is a concave shape or a convex shape on the one side surface,
The first fixed shape and the second fixed shape are set so that the respective clearances with respect to the third fixed shape are substantially the same,
The battery fixing structure according to claim 2, wherein the casing-side battery fixing portion and the third fixing shape are fitted.   The battery fixing structure according to any one of claims 1 to 3, wherein the rear case has a groove for receiving a waterproof packing.   The said front case has the 4th fixed shape opposite to the said 2nd fixed shape in the surface on the opposite side to the surface where the said 2nd fixed shape opposes the said battery. The battery fixing structure according to any one of 1 to 4.   The battery fixing structure according to any one of claims 1 to 5, wherein a sheet metal is inserted into the first fixing shape.   A portable terminal comprising at least one battery fixing structure according to any one of claims 1 to 6.   The portable terminal according to claim 7, further comprising a waterproof material.