JP2001313703A - Portable electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent chips, scratches, or the like which occur at the slide of an engaging member holding a battery pack, from being exposed to the outside. SOLUTION: In a battery pack setting mechanism 4, a hook reception part 41 where a hook 42 holding the battery pack is stored is provided with a recessed part 41A on which an upper face part 42A of the hook head part is slidably arranged and a guide recessed part 41B in which a lower face part 42B of a hook base part is stored so that it can be moved forward and backward. In the peripheral edge part of a shoulder part formed between the guide recessed part 41B and the bottom face of the recessed part 41A of the hook reception part, an outer peripheral rib 41D projecting along the peripheral edge part is formed. This outer peripheral rib 41D is formed in a position where the rib is covered with the upper face part 42A of the hook 42 throughout the movement range of the hook 42 and abutting projecting parts 41E, 41F, and 41G which are abutted on an inside face 42H of the upper face part 42A at the slide of the hook 42 are provided in plural positions on the outer peripheral rib 41D.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device, such as a portable telephone or a portable information terminal, provided with a battery pack mounting mechanism capable of detachably mounting a battery pack on an apparatus housing.

[0002]

2. Description of the Related Art Conventionally, as a mounting mechanism of a battery pack used for a portable electronic device such as a portable telephone, for example, JP-A-8-317024, JP-A-9-331382 and JP-A-10-117224 are disclosed. Are known.

For example, in a battery pack holding device described in Japanese Patent Application Laid-Open No. 10-117224, as shown in FIG. 5, a housing 6 has a mounting portion 6A having a space for mounting the battery pack 5, and a housing 6A. A hook 7 slidably attached to the body 6 and engaged with the mounted battery pack 5; a spring 8 for applying an elastic force to the hook 7 to urge the battery pack 5; and the hook 7 and the spring And a hook receiving portion 6B for accommodating the same 8 are disclosed. The end of the battery pack 5 is provided with a concave portion 51, and the front end of the hook 7 is provided with a convex portion 71 that engages with the concave portion 51 of the battery pack 5.

[0004] In the battery pack holding device having such a configuration, the pressing force generated on the hook 7 side by the elastic force of the spring 8 is particularly applied between the longitudinal direction of the battery pack 5 and the thickness direction perpendicular thereto. By disassembling the battery pack into two parts and maintaining the battery pack 5 in a stable state by these component forces, rattling when the battery pack is mounted is prevented.

[0005]

Generally, in a portable electronic device having a battery pack of this type, a resin material such as plastic is used to reduce the weight and realize a complicated design. Often done. In the battery pack holding device having the above-described configuration, when the battery pack 5 is taken out from the mounting portion 6, the user can use the hook 7
When the hook 7 is pushed in a direction away from the battery pack 5 (leftward in FIG. 5) while the finger is being hooked, the hook 7 moves in the same direction while sliding along the hook receiving portion 6B of the housing 6. . As a result, friction occurs between the hook 7 and the hook receiving portion 6B, so that at least one of them may be worn.

For example, it is assumed that the housing has a higher surface hardness than the hook. In this case, as shown in FIG. 5, from the state in which the hook 7 is engaged with the battery pack 5 (hereinafter, this is referred to as a “front end position”), the hook 7 is released backward ( When the hook 7 is moved backward to a state where the hook 7 is moved backward (to the left in the figure) (hereinafter, this is referred to as a “rearmost position”), the contact surface 6C of the hook receiving portion 6B of the housing 6 having a large surface hardness is used. For example, the back surface 7A of the hook 7 may be scraped off. For this reason, when shavings are generated, they are accumulated near the “rearmost position” of the contact surface 6C. And usually, hook 7
Is pushed forward to the "frontmost position" by the elastic force of the spring 8, and the rear end 7B of the hook 7 is brought into contact with the contact surface 6C.
Is located forward of the "rearmost position", the accumulated shavings are exposed to the outside, which may cause discomfort to the user.

On the other hand, when the surface hardness of the hook is higher than that of the housing, the back surface 7 of the hook 7 having the higher surface hardness is used.
A and the like, the contact surface 6C on the housing side may be scraped off.
Not only is accumulated near the "rearmost end position", but also causes a scar at the time of cutting on the contact surface 6C. As a result, not only the accumulated shavings but also scars on the contact surface 6C are exposed, which may further cause discomfort.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is intended to reduce shavings and shaving marks of a member when an engaging member for detachably mounting a detachable battery pack is slid on a housing. It is an object of the present invention to provide a portable electronic device having a battery pack mounting mechanism capable of minimizing generation and preventing the shavings and shaving marks from being exposed to the outside.

[0009]

According to the present invention, first, there is provided a mounting portion for mounting a battery pack, and an engaging member for engaging and fixing and holding the battery pack. A portable electronic device provided with a battery pack mounting mechanism that releases a holding state of a battery pack by movement, comprising: an engagement member receiving portion that stores the engagement member so as to be able to advance and retreat in a direction of the mounting portion; The contact part that comes into contact when the joint member moves back and forth,
In any of the moving ranges of the engaging member, the engaging member is provided at a plurality of positions located inside the engaging member.

Second, the engaging member receiving portion is open to the mounting portion side and has a guide portion in which a base portion of the engaging member is housed so as to be able to advance and retreat, and is exposed to the outside of the engaging member. A recessed portion in which the head is slidably housed and arranged, and at the bottom of the recessed portion, at a plurality of locations near the periphery along the step with the guide portion, as the contact portion It is assumed that a contact projection is provided to contact the inner surface of the head of the engagement member.

Third, an outer peripheral rib protruding along the peripheral portion is formed near the peripheral edge of the step with the guide portion on the bottom surface of the concave portion of the engaging member receiving portion.
The outer peripheral rib is located at a position covered by the engaging member over the entire moving range of the engaging member, and the contact protrusion is provided at a plurality of positions on the outer peripheral rib.

Fourthly, the outer peripheral rib is extended to a peripheral portion on the mounting portion side on the bottom surface of the concave portion, and this terminal portion is cut off by interrupting the space between the peripheral rib and the side wall of the concave portion. In this case, it is assumed that a communication path is formed in which the bottom surface of the concave portion communicates with the mounting portion.

Fifth, it is assumed that the surface of the contact portion has been subjected to a surface treatment for increasing the surface hardness. Sixth, the surface treatment includes a UV coat.

A seventh aspect of the present invention includes a mounting portion for mounting the battery pack, and an engaging member for engaging and fixing and holding the battery pack. The holding state of the battery pack is changed by the movement of the engaging member. A portable electronic device provided with a battery pack mounting mechanism to be released, comprising: an engaging member receiving portion that stores the engaging member so as to be able to move forward and backward in the mounting portion direction. A guide portion which is open to the side and in which the base of the engaging member is housed so as to be able to advance and retreat, and has a recessed portion in which a head exposed to the outside of the engaging member is slidably housed and arranged, An outer peripheral rib protruding along the peripheral portion is provided near the peripheral portion along the step with the guide portion on the bottom surface of the concave portion.

In the above configuration, the contact portion of the engaging member receiving portion that comes into contact when the engaging member moves forward and backward is always located inside the engaging member and is not exposed to the outside. Even when shavings and shavings are generated due to sliding with the engaging member receiving portion, these shavings and shavings are hidden by the engaging members and are not exposed to the outside and are not visible from the outside. Further, by providing the contact portions at a plurality of positions, the engagement member can be slidably stably without rattling. Therefore, giving the user discomfort is suppressed.

Further, by applying a surface treatment such as UV coating to the surface of the contact portion, the abrasion resistance on the housing side can be improved, and at the same time, the appearance, design and fashion can be improved. .

Further, an outer peripheral rib is provided on a peripheral portion of the bottom surface of the concave portion of the engaging member receiving portion, and a communication passage communicating with a mounting portion of the battery pack is formed at an end of the outer peripheral rib.
When water droplets such as rainwater enter the recessed portion of the engagement member receiving portion, it can be guided to the mounting portion side through the communication path,
It is possible to prevent water droplets from entering the inside of the housing. Therefore, it is possible to prevent a problem that the electronic circuit inside the housing is corroded or short-circuited due to water intrusion.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a portable telephone, which is a kind of portable electronic device provided with a battery pack mounting mechanism according to the present invention. The mobile phone according to the present embodiment includes a battery pack mounting mechanism 4 on which a battery pack 5 is mounted on the back side of the housing 1.

The housing 1 has a structure in which an upper case 2 and a lower case 3 are joined and integrated. Also, this case 1
, A telescopic rod-shaped antenna 11 for transmitting or receiving a high-frequency signal and capable of being extended and retracted, a diversity receiving antenna 12, a receiver 13 for outputting sound, and a display section for displaying characters and symbols. Liquid crystal display section 14
And a key sheet 15 on which characters and symbols are printed, a transmitter 16, a printed circuit board 17, and the like.

The upper case 2 has a receiver sound hole 2A for guiding the sound generated from the receiver 13 to the outside of the housing 1, a key hole 2B formed in the same number as the protrusions 15A of the key sheet 15, and having the protrusions 15A inserted therein. An opening 2 </ b> C and the like that are opened to a size equivalent to the size of the liquid crystal display unit 14 are provided. The opening 2C is covered with a transparent window 2D so that a user can recognize and read characters, symbols, and the like displayed on the liquid crystal display unit 14.

Although not shown, an oscillator (VCO) for controlling the oscillation frequency with a voltage and a temperature-compensated crystal oscillator (VC-T) for stably controlling the oscillation frequency are provided on the back surface of the printed circuit board 17.
Electronic components such as CXO), a plurality of resistors, and capacitors are mounted, and a receiving circuit unit including a low-noise amplifier and a first mixer is formed. On the other hand, on a surface of the printed circuit board 17, although not shown, electronic components such as a modulator, a power amplifier (PA), a plurality of resistors, and a capacitor are mounted to form a transmission circuit portion. The receiving circuit section and the transmitting circuit section are made of a resin-made shield case 1 to prevent electromagnetic waves from entering from outside.
7A.

The shield case 17A of the present embodiment is formed of a plastic resin material such as acrylonitrile, butadiene, styrene, etc., and its surface is subjected to electroless copper plating to prevent passage of electromagnetic waves. further,
The surface is electroless nickel plated,
Rust prevention treatment is applied to the electroless copper plating. Also, on the shield case 17A, an annular speaker 18 for notifying the user of an incoming call by sounding a single tone or a melody of a chord, or a back surface for performing voice recording by pressing during use. A side key 19 is provided.

On the other hand, the lower case 3 has a speaker sound hole 3A for guiding the sound of the speaker 18 to the outside of the housing 1,
9 is provided with a rear side key hole 3B for projecting the projection 9 outward. Further, the lower case 3 includes a mounting portion 3C for mounting a battery pack 10 containing a battery for supplying power to the portable telephone, and a battery pack mounting mechanism 4 for mounting and holding the battery pack 5. Is provided. The lower case 3 and the upper case 2 are both formed using ABS resin, polycarbonate (PC), polystyrene (PS), or various resin materials or alloy materials, and furthermore, have an external appearance. In order to improve the surface, an appropriate coating treatment such as painting, printing, and UV coating is applied to the surface.

[0024] The UV coating means that an ultraviolet curable resin (UV resin) is applied to the surface of the object to be coated, and the surface is irradiated with a predetermined ultraviolet ray so that the applied ultraviolet curable resin is cured. It was made. This UV-curable resin contains a photopolymerizable oligomer, a reactive diluent, a pigment,
It is composed of a photoinitiator, additives and the like. The UV coat may be selected according to the raw material of the object to be coated, and the raw material may be, for example, polycarbonate (PC) or an alloy material.

As shown in FIG. 4, an engagement groove 5B is formed in the battery pack 5 as an engaged portion to be engaged with a projection 42D of a hook 42 described later. The engagement groove 5B is formed such that the ceiling surface is gradually lowered toward the back.

Next, the battery pack mounting mechanism 4 according to the embodiment of the present invention will be described in detail.

The battery pack mounting mechanism 4 detachably mounts the battery pack 10 and holds the same. As a schematic configuration, a hook corresponding to an engaging member receiving portion provided in contact with the mounting portion 3C is provided. A receiving portion 41, a hook 42 stored in the hook receiving portion 41 and corresponding to an engaging member for engaging and holding the battery pack 5,
2 is provided with a coil spring 43 as an elastic member for constantly pressing the battery pack 2 toward the battery pack 5.

The hook receiving portion 41 has a concave portion 41A which is opened to face the mounting portion 3C at a position one step lower than the surface of the lower case 3 and is surrounded by three surfaces by a step surface (side wall) 3D. The mounting portion 3 is located at the center of the recess 41A.
A guide recess 41B corresponding to a guide portion formed by notching further deeper so as to open toward C is provided.

The guide recess 41B is provided in the recess 41A.
An outer peripheral rib 41D having a narrow width (constituting a convex portion) is provided along the inner peripheral portion from one end to the other end over the entire periphery. The lower case 3 including the hook receiving portion 41
Has a so-called push-cut configuration formed by a fixed-side mold and a movable-side mold due to its structure. As shown in FIGS. 2 and 3, the left and right sides of the guide recess 41B in the width direction Is formed with a communication hole 41C that communicates the inside and outside of the lower case 3. As shown in FIG. 3, an upright wall portion 41I is provided upright so as to surround the guide recess 41B inside the case of the communication hole 41C.

The outer peripheral rib 41D located above the communication hole 41C is slightly higher than the bottom surface of the concave portion 41A, and water such as rainwater may enter the concave portion 41A of the hook receiving portion 41. Even so, the outer peripheral rib 41D acts like a bank and is dammed to prevent water from flowing into the guide recess 41B. Further, the outer peripheral rib 41D has first contact portions protruding upward at a plurality of locations on a part of the upper surface, for example, in this embodiment, at each side of the outer edge of the guide recess 41B, that is, at three locations on the left, right, and center. A contact convex portion 41E to a third contact convex portion 41G are formed, and thereby an upper surface (head) 42A protruding in a flange shape of a hook 42 to be described later is attached to an inner surface 42H (FIG. 3).
(See Reference) side.

The first contact convex portion 41E and the second contact convex portion 41
F is elongated and protrudes in a direction parallel to the moving direction of the hook 42 and is formed in a state of being curved upward and convex at a constant curvature. On the other hand, the third contact convex portion 41G is
The guide recess 41B is formed in a state of protruding hemispherically at substantially the center in the width direction. By minimizing the contact area with the hook 42 as described above, the sliding friction resistance with the hook 42 is reduced as much as possible. In addition, since the hook 42 is always in contact with the contact protrusions 41E to 41G at three locations, the hook 42 is prevented from tilting during sliding movement. Is secured.

The hook 42 has a depression 42 for pressing with a finger.
The upper surface portion 42A provided with I and the lower surface portions (base portions) of the right and left twin bodies.
42B, and a neck 42C formed to be narrower than the upper surface portion 42A and the lower surface portion 42B to connect them. Of these, the mounting portion 3 is provided on the lower surface portion 42C.
A substantially triangular protrusion 42D that protrudes toward C and forms an engagement portion that engages with the engaged portion of the battery pack 5 is formed symmetrically with respect to the left and right, and engages with the engagement groove 5B provided in the battery pack 5. Are to be combined. In addition, on the lower surface portion 42B,
Engaging claw 42E protruding rearward opposite to mounting portion 3C
Are formed bilaterally symmetrically, and these engaging claws 42E are inserted into the communication holes 41C by penetrating inside the left and right standing walls 41I provided on the hook receiving portion 41.

As shown in FIG. 3, a cylindrical portion 42F into which a coil spring 43 inserted between the neck portion 42C and the hook receiving portion 41 is inserted is formed at the center of the rear end surface 42G side of the neck portion 42C. ing. Height d1 of this neck 42C (see FIG. 2)
Is slightly larger than the height d2 from the upper end of the communication hole 41C of the hook receiving portion 41 to the upper surface of the outer peripheral rib 41D, and the difference between the height of the hook 42 and the lower case 3 is (d1-d2). Clearance is secured.

The neck 42C has a width W1 narrower than the width W2 of the guide recess 41B by a very small amount, so that a clearance is secured between the two. From the “front end position” (the state of FIG. 4A) to the “rear end position”
(The state shown in FIG. 4B). An extremely fine clearance is also formed in the vertical direction between the outer peripheral rib 41D and the hook 42, but the clearance is set to 0.3 mm or less in consideration of the precision of parts and the precision of assembly. Is preferred.

As the coil spring 43, a compression coil spring is used. The compression spring is mounted on a cylindrical portion 42F provided at the center of the neck 42C of the hook 42. The rear end surface 42G of the hook 42 and the hook receiving portion 41 shown in FIG. It is interposed between the guide recess 41B and the rear end surface 41K. Note that this rear end face 41
In K, a hole 41M is formed at the center thereof, into which the tip end side of the cylindrical portion 42F of the hook 42 is engaged.

Next, the operation of the battery pack mounting mechanism 4 according to the embodiment of the present invention will be described in detail.

In describing this operation, the operation of accommodating and assembling the hook 42 in the hook receiving portion 41 will be described. After the coil spring 43 is mounted on the cylindrical portion 42F of the hook 42, the neck portion 42C is engaged and inserted along the inner peripheral surface 41L of the outer rib 41D of the lower case 3. Then, the engaging claw 42E of the hook 42 abuts against the standing wall portion 41I, and is bent and bent. In this state, when the hook 42 is further inserted toward the back, the engaging claw 42E crosses the corner of the standing wall portion 41I which has bent the engaging claw 42E and advances toward the inside of the communication hole 41C. Is released and standing wall 4
1I.

At this time, the coil spring 43 is
Since the seat on the other end side opposite to the one end inserted into the rear end has already contacted the rear end face 41K on the lower case 3 side, the coil spring 43 is somewhat compressed, and the reaction force is reduced by the hook. Acts on 42. As a result, when the battery pack 5 is mounted, the reaction is urged toward the battery pack 5 and the hook 42 is fixed to a stationary state. This state is the “front end position” described above. In this state, the hook 42 can be moved backward in the direction in which the coil spring 43 further compresses.

Therefore, for example, the upper surface portion 42 of the hook 42
It is assumed that the hook 42 is pushed further rearward (in the direction opposite to the direction in which the battery pack 5 is located) while the finger is held on A. Then, the coil spring 43 is further compressed, and the hook 42 moves backward while the neck 42C is guided by the inner peripheral surface 41L of the recess 41A. That is, this hook 4
2, the inner surface 42H (see FIG. 3) of the upper surface portion 42A abuts on the first to third abutting projections 41E to 41G of the outer peripheral rib 41D and slides backward. Thereafter, when the distal end of the engaging claw 42E abuts against a stopper wall 3F (see FIGS. 3 and 4) provided further inside the hook receiving portion 41, the retreating operation is completed. This state is the “rearmost position” described above.

Therefore, in the battery pack mounting mechanism 4 having the above-described structure, in order to attach and detach the battery pack 5,
From the state shown in (A), a finger is put on the upper surface portion 42A of the hook 42 and pushed in the left direction in the figure. And FIG.
As shown in (B), the battery pack 5 is lifted up and removed while the hook 42 is retracted (moved leftward in the drawing) to the “rearmost position”. In order to mount the battery pack 5, the user sets the battery pack 5 on the mounting portion 3C with the hook 42 of FIG. 4B retracted, and then removes the hooked finger from the hook 42. With the elastic restoring force of the coil spring 43, the hook 42 moves forward to the original “frontmost end position”. As a result, as shown in FIG. 4A, the engagement groove 5B of the battery pack 5 is engaged with the protrusion 42D of the hook 42, and the battery pack 5 is locked.
Is fixedly held in a stable state. It should be noted that even when the battery pack 5 is merely pushed in from above with the hook 42 advanced as shown in FIG.
2 along the slope of the projecting portion 42D.
Since D is engaged with the engagement groove 5B, the battery pack 5 may be mounted and fixed in this manner.

Next, the abrasion state of the lower case 3 and the hook 42 in the battery pack mounting mechanism 4 according to the present embodiment will be described.

In a normal use condition, the back surface 42A of the upper surface 42A of the hook 42 depends on the use condition of the portable telephone.
Since there is a certain clearance between H and the first contact protrusion 41E to the third contact protrusion 41G on the lower case 3 side, no particular problem occurs. However, when the battery pack 5 is attached or detached, the hook 42 is pushed toward the lower case 3 with a finger or the like to slide along the recess 41A.
At this time, friction occurs between both the hook 42 and the lower case 3. Then, the smaller surface hardness is worn by the friction.

Here, a method for measuring the “surface hardness” of the resin product will be specifically described.

In this measuring method, for example, a pencil
mm, the tip is cut at a right angle, and it is inclined at 45 degrees to the test piece whose hardness is to be measured, and pressed in the direction opposite to the inclined direction to measure the hardness. That is, in this method, the hardness of the pencil when a line is drawn without damaging the test piece is identified as “surface hardness”. For example, the housing 1 (upper case 2 and lower case 3) of the present embodiment is coated with a top paint (UV coat, H series) (manufactured by Origin Electric Co., Ltd.), and the hardness is measured by this measuring method. As a result, the pencil manufactured by Mitsubishi Pencil Co., Ltd. had a hardness of "H". On the other hand, the hardness of the hook 42 not subjected to the UV coating was “H” or less. As a result, "surface hardness"
In the relationship of lower case 3> hook 42.

Accordingly, in this embodiment, when both the lower case 3 and the hook 42 are rubbed while abutting each other,
The hook 42 having the smaller “surface hardness” wears, and shavings are generated from the hook 42. by the way,
When the upper surface portion 42A is pressed by a finger or the like from above, the hook 42 comes into contact with three points of the first contact protrusion 41E to the third contact protrusion 41G on the lower case 3 side. Therefore, when the hook 42 is moved from the "frontmost position" to the "rearmost position", the hook 42 moves while being in contact with these contact convex portions 41E to 41G. As a result, in the vicinity of the first to third contact projections 41E to 41G, shavings may be generated and adhere to or accumulate there.

However, in this embodiment, the hook 4
Even when 2 is at the “front end position” A, the entire hook receiving portion 41 is covered with the hook 42 except for the exposed region S of the recess 41A. For this reason, even if shavings are generated, the first to third contact projections 41 </ b> E to 41 </ b> G to which they are attached are always covered by the upper surface 42 </ b> A of the hook 42. It is invisible. When the battery pack 5 is taken out, the hook 42 is moved to the “rearmost position”. In this case as well, the first to third contact projections 41 </ b> E to 41 </ b> E to which shavings adhere are similarly used.
G is covered with the hook 42 and cannot be seen from the outside.

As described above, the first contact protrusions 41E to the third contact protrusions 41E to 3
Even if the contact protrusion 41G moves the hook 42 from the “frontmost position” to the “backmost position”, the contact protrusion 41G is hidden by the hook 42 and cannot be seen, so that the user does not feel uncomfortable.

Next, the waterproofness of the battery pack mounting mechanism 4 according to the present embodiment will be described.

The battery pack mounting mechanism 4 of the present embodiment is used for a portable telephone. Therefore, since the portable telephone is usually used frequently outdoors, it is used even in rainy weather and sometimes receives rainwater.

Normally, a portable telephone is used with the antenna 11 facing upward at the time of an incoming call. When rainwater adheres to the rear side of the housing 1 (the lower case 3 side), sometimes the rainwater is hooked. There is a possibility that the electronic device may enter the housing 1 through the guide concave portion 41B of the portion 41 and penetrate as far as the built-in printed circuit board 17 side, causing troubles such as short-circuit, corrosion, and breakage of the electronic circuit. To avoid this situation,
For example, when molding the lower case 3 provided with the hook receiving portion 41, it is conceivable to adopt, for example, a mold structure using a slider. Such a structure is advantageous because it can prevent the formation of a communication hole through which rainwater or the like can enter, but is accompanied by an increase in the cost of the mold and an increase in the molding time, resulting in a reduction in the equipment cost. Will increase.

Therefore, in the present embodiment, attention is paid to the fact that the amount of water adhering to the housing surface when used in rainy weather is usually small, and this small amount of water is prevented from entering the housing 1. Therefore, the structure is as follows.

The height of the outer peripheral rib 41D is slightly higher than the depth of the bottom of the concave portion 41A provided in the hook receiving portion 41. And this outer peripheral rib 41D is
Even when the hook 42 is at the “front end position”, the hook 42 is always covered by the upper surface 42A together with the dent 41A in the vicinity thereof. Note that the remaining region S (shown by oblique lines in FIG. 2) of the depression 41A remains exposed. On the other hand, when the hook 42 retreats to the "rearmost position",
Part or all (depending on the amount of movement of the hook) of the previously exposed region S of the recess 41A is covered with the upper surface 42A of the hook 42.

Therefore, in such a configuration, especially when the hook 42 is usually at the "frontmost position", there is a possibility that water adhering to the surface of the housing is flooded and accumulated in the recess 41A. However, since the clearance between the outer peripheral rib 41D and the hook 42 is set to be extremely fine, even if water accumulates in the recess 41A, the accumulated water is removed by the outer peripheral rib 41D due to the action of surface tension. It is difficult to get over.

If the outer peripheral rib 41D is not provided, when the hook 42 is retracted to the "rearmost end position", the water accumulated in the concave portion 41A cannot completely withstand the action due to the surface tension. The guide hole 41B passes through the gap between the rib 41D and the hook 42 and enters the guide recess 41B.
Intrusion into the inside of the housing 1 from 1C may occur. In other words, the water accumulated in the depression 41A has a property of rising from the upper surface of the outer peripheral rib 41D due to surface tension. However, if there is no outer rib 41D for blocking the water, the water does not stay in the depression 41A and the guide concave 41B does not stay. However, in the configuration of the present embodiment, such intrusion of water can be prevented by the outer peripheral rib 41D.

Further, in this embodiment, as shown in FIG. 2, the outer peripheral rib 41D is extended to a peripheral portion facing the mounting portion 3C of the lower case 3 on the bottom surface of the concave portion 41A, and the terminal portion thereof is formed by a step surface. 3D is interrupted and cut off, and the communication path 4 through which the recess 41A communicates with the mounting section 3C.
1N is formed. A groove is formed on the wall surface of the mounting portion 3C communicating with the communication passage 41N toward the bottom surface. Therefore, the outer peripheral rib 41 is accumulated in the recess 41A.
The water blocked by D can be drained toward the mounting portion 3C through the communication passage 41N, and the guide concave portion 41B
Can be prevented from entering the communication hole 41C.

In order to confirm the waterproof performance in the present embodiment, the outer peripheral rib 41D is provided to determine whether or not the outer peripheral rib 41D can actually prevent the water accumulated in the recess 41A from entering the guide concave portion 41B. Thing and outer rib 41
A prototype without D was manufactured and an experiment of the drip-proof effect was performed. As a result, the former provided with the outer peripheral rib 41D satisfied "JIS-C0920 protection class 3 (rainproof type)", but the latter provided with the outer rib 41D could not satisfy this. Grade 1 "was satisfied.

[0057]

As described above, according to the present invention, when the engaging member for holding the battery pack advances or retreats, the contacting portion is brought into contact with the engaging member regardless of the moving range of the engaging member. By arranging it at multiple locations located inside,
When the engaging member that detaches the detachable battery pack from the housing is slid, the generation of shavings and shavings on the members is minimized, and the shavings and shavings are externally removed. There is an effect that it is possible to provide a battery pack mounting mechanism capable of preventing exposure to the battery pack.

Further, an outer peripheral rib is provided at the peripheral edge of the bottom surface of the recessed portion of the engaging member receiving portion, and a communication passage communicating with the mounting portion of the battery pack is formed at the end of the outer peripheral rib.
When water droplets such as rainwater enter the recessed portion of the engagement member receiving portion, it is possible to prevent the water droplets from entering the inside of the housing.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of a mobile phone as a mobile electronic device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a configuration of a battery pack mounting mechanism of the mobile phone according to the embodiment.

FIG. 3 is a schematic perspective view showing an internal structure of a main part of the battery pack mounting mechanism according to the embodiment.

4A and 4B are diagrams illustrating a relationship between a battery pack and a hook in the battery pack mounting mechanism according to the present embodiment, wherein FIG. 4A is a diagram illustrating a state at the time of mounting, and FIG. is there.

5A and 5B are diagrams illustrating a relationship between a battery pack and a hook in an example of a battery pack mounting mechanism according to a conventional portable electronic device, wherein FIG. 5A illustrates a state at the time of mounting, and FIG. FIG.

[Explanation of symbols]

 Reference Signs List 1 housing 2 upper case (housing) 3 lower case (housing) 3C mounting portion 3D step surface 3E wall surface 3F stopper wall portion 4 battery pack mounting mechanism 5 battery pack 41 hook receiving portion 41A recess 41B guide recess 41C communication hole 41D Outer peripheral rib 41E, 41F, 41G Contact convex part 41H Bottom surface 41I Standing wall part 41K Rear end surface 41L Inner peripheral surface (of rib) 41M Hole 42 Hook 42A Upper surface part (head) 42B Lower part (base) 42C Neck 42D Projecting part 42E Engagement claw 42F Cylinder 42H Inner surface (of upper surface) 42G Rear end surface 43 Coil spring

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G003 BA01 FA03 5H040 AA06 AA32 AS13 AY04 CC16 CC24 CC46 5K023 AA07 BB25 BB26 LL04

Claims (7)

[Claims] 1. A battery having a mounting portion for mounting a battery pack and an engaging member for engaging and fixing and holding the battery pack, wherein the holding state of the battery pack is released by movement of the engaging member. A portable electronic device having a pack mounting mechanism, comprising: an engagement member receiving portion that stores the engagement member so as to be able to advance and retreat in the mounting portion direction, and a contact portion that abuts when the engagement member advances and retreats. Are provided at a plurality of positions located inside the engaging member in any of the moving ranges of the engaging member. 2. The engaging member receiving portion has a guide portion which is open to the mounting portion side and in which a base portion of the engaging member is housed so as to be able to advance and retreat, and a head exposed to the outside of the engaging member. A recess portion slidably housed and arranged, and the engagement member serving as the abutment portion at a plurality of locations on the bottom surface of the recess portion near a peripheral portion along a step with the guide portion. 2. The portable electronic device according to claim 1, further comprising: a contact protrusion that contacts the inner surface of the head. 3. An outer peripheral rib protruding along the peripheral portion is formed near the peripheral edge of the step with the guide portion on the bottom surface of the concave portion of the engaging member receiving portion. 3. The portable electronic device according to claim 2, wherein the contact projection is provided at a plurality of positions on the outer peripheral rib at a position covered by the engagement member over the entire moving range of the engagement member. 4. The outer peripheral rib is extended to a peripheral portion on the mounting portion side on the bottom surface of the concave portion, and a terminal portion of the peripheral rib is cut off by interrupting a gap between the peripheral portion and a side wall of the concave portion. 4. The portable electronic device according to claim 3, wherein a communication path is formed between the bottom surface of the recess and the mounting portion. 5. The surface of said contact portion is subjected to a surface treatment for increasing surface hardness.
A portable electronic device according to any one of the above. 6. The portable electronic device according to claim 5, wherein the surface treatment includes a UV coating. 7. A battery having a mounting portion for mounting a battery pack and an engaging member for engaging and fixing and holding the battery pack, wherein the holding state of the battery pack is released by movement of the engaging member. A portable electronic device having a pack mounting mechanism, comprising: an engaging member receiving portion that stores the engaging member so as to be able to advance and retreat in a direction of the mounting portion, wherein the engaging member receiving portion is opened toward the mounting portion. A guide portion in which a base portion of the engaging member is housed so as to be able to advance and retreat; and a concave portion in which a head exposed to the outside of the engaging member is slidably housed and arranged, wherein the bottom surface of the hollow portion is provided. The portable electronic device according to any one of claims 1 to 3, wherein an outer peripheral rib protruding along the peripheral portion is provided near a peripheral portion along a step with the guide portion.