JPH10270001A - Battery pack lock structure - Google Patents

Abstract

(57) [Summary] A small electronic device such as a mobile phone prevents a spring from buckling against an impact due to a drop or the like and keeps a stable lock state of a battery pack. A battery pack lock is formed such that a button for unlocking is incorporated in a housing and the button is engaged with the housing by a hook interlocked with a spring to attach and detach a battery pack. In the structure, a pin-shaped protrusion 9 into which the spring 8 is fitted, and one end provided on the housing 1 so that the spring 8 abuts and the spring 8 does not shift in the left-right direction, has one closed end face and the other is open. It has a convex wall portion 10 having a U-shaped concave portion 11, and a wall 12 provided on the hook 4 so that the spring 8 does not shift in a direction in which the spring 8 opens on the opposite side to the closed end surface of the concave portion 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack lock structure, and more particularly to a battery pack lock structure for a small electronic device such as a portable telephone.

[0002]

2. Description of the Related Art Conventionally, this type of battery pack lock structure is used, for example, in a portable telephone so as to make a battery pack detachable from a housing thereof.

FIG. 3 is a sectional view showing an example of a conventional battery pack lock structure. As the battery pack lock structure,
A slide lock 32 which is housed from the opening in a closed concave portion 31 opened to the housing portion of the battery pack 40 of the housing 30 and has a lock claw portion which can be advanced to and retracts from the housing portion of the battery pack 40 at the tip thereof; A spring 33 for pressing the slide lock 32 in the advance direction, and a slide lock 32 from the outside of the housing 30.
And a slide knob 34 for sliding the slide to the retracted position by engaging with the slide knob 34.

[0004]

The above-described conventional battery pack lock structure has a structure in which one end of the spring is merely abutted against the housing, and the method of holding the spring is incomplete. There is a possibility that internal and external parts may be distorted due to an impact due to dropping or the like, and the lock function of the battery pack may be lost, and there is a problem that reliability and reliability are lacking.

An object of the present invention is to provide a battery pack lock structure that can prevent a spring from buckling even in the event of a drop or the like in a small electronic device such as a mobile phone and maintain a stable lock state of the battery pack. To provide.

[0006]

According to a battery pack lock structure of the present invention, a button for unlocking is incorporated in a housing of an electronic device, and the button is engaged with the housing by a hook interlocked with the button by a spring. In the battery pack lock structure formed so as to be able to be attached and detached, a pin-shaped convex portion into which the spring is fitted and one provided on the housing so that the spring abuts and the spring does not shift in the left-right direction are closed. A convex wall portion having a U-shaped concave portion having an open end surface and the other end being opened; and a wall provided on the hook so that the spring does not shift in the opening direction on the opposite side to the end surface. The pin-shaped protrusion may be attached to one of the hook and the recess, and the pin-shaped protrusion may be any of a round shape, an elliptical shape, and a square shape.

According to the present invention, by adding a wall to the hook, the lateral direction of the end face of the spring fixed to the U-shaped concave side of the convex wall of the housing is held by the wall of the U-shaped concave. One of the vertical portions is held by a closed end surface of one of the U-shaped concave portions, and the other is in an unsupported state because the concave portion is open in a U-shape. It may shift. Therefore, even if a strong shock due to a fall or the like is applied to the housing, the spring can be prevented from buckling by locking the battery pack in the direction in which the spring is displaced, that is, in the opening direction of the U-shaped recess. It leads to improved reliability and certainty.

[0008]

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

Referring to FIG. 1, the battery pack lock structure of the present invention has a lock release button 2 incorporated in a housing 1 of an electronic device such as a portable telephone, and a hook 4 interlocked with the button 2 and a spring 8 to operate the housing. In a battery pack lock structure formed so as to be engaged with the body 1 so that the battery pack can be attached and detached, a pin-shaped projection 9 into which a spring 8 is fitted.
A convex wall portion 1 having a U-shaped concave portion 11 having one closed end surface and the other open end provided on the housing 1 so that the spring 8 strikes and the spring 8 does not shift in the left-right direction.
0 and a wall 12 provided on the hook 4 so that the spring 8 does not shift in the direction of opening opposite to the closed end face of the recess 11.

The details of the structure will be described below. The button 2 incorporated in the housing 1 and the hook 4 having the square hole 3 are engaged so that the protrusion 5 of the button 2 and the square hole 6 of the hook 4 slide. It is fixed so that it can engage with the hook 7 of the body 1 and slide. At this time, the spring 8 is first assembled into the pin-shaped convex portion 9 of the hook 4 and mounted so as to abut against the convex wall portion 10 of the housing 1.

As a result, the hook 4 is always pushed out in a fixed direction, that is, in the lock direction of the battery pack, and when the button 2 is pressed, the hook 4 slides in the opposite direction. In this state, one end surface of the spring 8 is fitted into the pin-shaped convex portion 9 on the hook 4 side and the U-shaped concave portion 11 is provided on the convex wall portion 10 on the housing 1 side. 8 the other end face is incorporated.

At this time, since the housing 1 is held by the U-shaped recess 11, the spring 8 is shifted only in one direction where the recess 11 is open. The wall 12 provided in the holder 4 holds the spring 8 by holding it down, thereby preventing the spring 8 from shifting in all directions, that is, preventing the spring 8 from buckling.

In the present embodiment, the pin-shaped protrusion 9
Has been described as an example in which it is attached to the hook 4 side, but may be attached to the concave portion 11 of the convex wall portion 10 on the housing 1 side. In addition, the pin-shaped protrusion 9 is shown as a round one, but may be any one of an ellipse and a square.

Next, the operation of the present invention will be described with reference to FIG. FIG. 2A is a cross-sectional view illustrating a state where the battery pack is locked to the housing, and FIG. 2B is a cross-sectional view illustrating a state where the battery pack is unlocked from the housing. Battery pack 13
Button 2 is pressed in the direction A in order to remove from the housing 1. At this time, the protrusion 5 of the button 2 and the square hole 6 of the hook 4 are linked to each other, and the hook 4 slides in the direction B and the battery pack 1
3, and the battery pack 13 is released.

The hook 4 is held so that the square hole 14 formed in the wall of the housing 1, the square hole 3 of the hook 4, and the hook 7 of the housing 1 can be engaged and slid. Further, the end face of the spring 8 is inserted into the pin-shaped projection 9 of the hook 4, and the opposite end face is inserted into and held by the U-shaped recess 11 of the projection wall 10 provided in the housing 1.

As a result, the hook 4 is pushed out in the direction C by the spring 8, and the battery pack 13 is mechanically held. At this time, the spring 8 is held and fixed in one of three directions by a U-shaped concave portion 11 in one end surface, but in the A direction, a wall 12 provided on the hook 4 in FIG. In either state, it is securely pressed down and held and fixed so as not to buckle.

[0017]

As described above, according to the present invention, the button for unlocking is incorporated in the housing of the electronic device, and the button is engaged with this housing by the hook interlocked with the spring to attach and detach the battery pack. In the battery pack lock structure formed so that the spring can be fitted, a pin-shaped convex portion into which a spring is fitted and an end face closed on one side provided on the housing so that the spring abuts and the spring does not shift in the left-right direction. A convex wall portion having a U-shaped concave portion that is open,
By providing a closed end surface of the U-shaped concave portion and a wall provided on the hook so as not to shift in the opening direction on the opposite side, even when a strong impact due to dropping is applied to the housing, the spring is provided. Buckling can be prevented, and the reliability and reliability of the lock of the battery pack can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2A is a cross-sectional view illustrating a state where a battery pack is locked to a housing. (B) is sectional drawing in the state where the battery pack was unlocked from the housing | casing.

FIG. 3 is a sectional view showing an example of a conventional battery pack lock structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Button 3, 6, 14 Square hole 4 Hook 5, 9 Convex part 7 Hook part 8 Spring 10 Convex wall part 11 Concave part 12 Wall 13 Battery pack

Claims (3)

[Claims] 1. A battery pack lock structure in which a button for unlocking is incorporated in a housing of an electronic device, and the button is engaged with the housing by a hook interlocked with a spring to allow the battery pack to be attached and detached. , A pin-shaped convex portion into which the spring is fitted, and one end provided on the housing so that the spring abuts and the spring does not shift in the left-right direction.
A battery pack lock structure, comprising: a convex wall portion having a U-shaped concave portion; and a wall provided on the hook so that the spring does not shift in a direction in which the spring is open on the side opposite to the end face. 2. The battery pack lock structure according to claim 1, wherein said pin-shaped convex portion is attached to one of said hook and said concave portion. 3. The battery pack lock structure according to claim 1, wherein the pin-shaped protrusion has any one of a round shape, an elliptical shape, and a square shape.