JPH07245088A - Battery pack attachment/detachment mechanism - Google Patents

Abstract

PURPOSE:To lock a battery pack securely, and install it stably by providing a movable pin penetrating both side surfaces in the battery pack, and a lock pawl protruded from a side wall and a locking hole facing it in an installation part. CONSTITUTION:A lock pawl 6 protruded by a lock spring 11 is provided in one side wall 2A of an installation part 2 of an electronic instrument 1, and a lock hole 7 is provided in the other. A battery pack 3 is provided with a movable pin 8 held by a spring 9 in such a way that end parts 8A, 8B become the same plane as side surfaces 3A. For installing the pack 3, the pawl 6 is retracted by a knob 10 into the side wall 2A, the pack 3 is installed on the installation part 2, and the knob 10 is released, so the pawl 6 pushes the pin 8 by the spring 11 for its end part 8B to be inserted into the hole 7, where the pack 3 is locked by both side surfaces 3A securely. For removal, only the pawl 6 is retracted by the knob 10 to restore the pin 8, then locking is released for the pack 3 to be taken out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack attachment / detachment mechanism formed so that a battery pack can be attached / detached to / from a mounting portion provided in an electronic device.

A portable electronic device is generally provided with a battery pack, and is designed to be operated by supplying power from the battery pack. In addition, such an electronic device is usually provided with a charged battery pack, and when the power source in the battery pack is consumed, for example, at the time of going out, the operating time can be extended by replacing it with a new battery pack. It is designed so that the battery pack can be freely attached and detached.

Therefore, when mounting such a battery pack, it is important that the power supply from the battery pack is reliably supplied to the electronic device.

[0004]

2. Description of the Related Art Conventionally, the structure is formed as shown in the conventional explanatory view (No. 1) of FIG. 5 and the conventional explanatory view (No. 2) of FIG. 5A is a perspective view, FIG. 5B is a side view of the mounting portion, FIG. 5C is a plan view of the mounting portion, FIG. 6A is a perspective view, and FIG.
Is a front view of the mounting portion, (c) is a side view of the mounting portion, and (d) is a plan view of the mounting portion.

As shown in FIG. 5 (a), the printed board 1-3
The portable electronic device 1-1, which is configured so that the display unit 1-2 made of a liquid crystal display panel is provided on the cover 1-1A and the cover 1-1A has a plurality of cases in the case 3-1C. The battery pack 3-1 accommodating the nickel cadmium element 30 of is formed so that the battery pack 3-1 can be attached / detached, and the power supply from the battery pack 3-1 activates the printed boards 1-3 to display predetermined display data. The display is shown on the display section 1-2.

A U-shaped mounting portion 2-1 having a side wall 2-1A and an abutting surface 2-1B is formed at a predetermined position of such a cover 1-1A, and both side walls 2-1A are provided. The formed guide 5 is inserted into the groove 5 provided on both side surfaces 3-1A of the battery pack 3-1, so that the battery pack 3-1 is attached and detached as shown by the arrow.

Further, as shown in FIG. 5 (b), the mounting portion 2-1 is provided with a lock claw 31 which rotates about a shaft 32, and the spring 33 normally causes a claw portion 31A of the lock claw 31 to be provided. Is projected to the mounting portion 2-1, and the claw portion 31A is formed so as to be retracted in the arrow A direction by sliding the knob 34 in the arrow B direction.

Therefore, when the battery pack 3-1 is inserted into the mounting portion 2-1 by aligning the guide 5 with the groove 4 as shown by the arrow F, the claw portion 31A is inserted into the battery pack 3-1.
Of the battery pack 3-1 is locked, and the terminal piece 3-1D arranged on the back surface 3-1B of the battery pack 3-1 is provided on the contact surface 2-1B. Connected to the contacts 1-4A, the power supply from the battery pack 3-1 and the charging to the battery pack 3-1 are connected to the terminal strip.
3-1D and contacts 1-4A.

Further, the battery pack 3-from the mounting portion 2-1
When removing 1, the claw portion 31A can be retracted by sliding the knob 34 in the direction of the arrow B, and the battery pack 3-1 can be removed by pulling the battery pack 3-1 in the direction opposite to the arrow F by releasing the lock.

Further, in the case of FIG. 6 (a), the portable electronic device 1-5 is constructed by housing the printed board 1-6 in the cover 1-5A, and a plurality of nickel is contained in the case 3-2C. The battery pack 3-2 accommodating the cadmium element 30 is formed so as to be attached and detached, and the printed board 1-6 is operated by the supply of power from the battery pack 3-2.

A U-shaped mounting portion 2-2 having a side wall 2-2A and an abutting surface 2-2B is formed at a predetermined position of such a cover 1-5A, and both side walls 2-2A are attached to the side wall 2-2A. The formed guide 5 is inserted into the grooves 5 provided on both side surfaces 3-2A of the battery pack 3-2, whereby the battery pack 3-2 is attached and detached as shown by the arrow.

Further, as shown in FIG. 6 (b), the mounting portion 2-2 is provided with a lock pawl 35 which slides by a knob 36, and a spring 37 normally holds a pawl portion 35A of the lock pawl 35.
Are formed so as to project into the mounting portion 2-2.

Therefore, as shown in (c) of FIG.
Battery pack by matching groove 5 with groove 4
Insert 3-2 into mounting part 2-2 in the direction of arrow F, and
A falls into the hook hole 3-2E of the battery pack 3-2,
The mounting of the battery pack 3-2 is locked, the back surface 3-2B of the battery pack 3-2 abuts on the contact surface 2-2B of the mounting portion 2-2, and the terminal piece provided on the battery pack 3-2.
3-2D is connected to the connection terminal 1-7 provided on the mounting portion 2-2, and the power supply from the battery pack 3-2 and the charging to the battery pack 3-2 are performed by the terminal piece 3-2D and the contact 1-. 7 and through.

Further, the battery pack 3-from the mounting portion 2-2
When removing 2, the tab 36A is retracted by sliding the knob 36 in the direction of arrow B, and the battery pack 3-2 can be removed by pulling the battery pack 3-2 in the direction opposite to arrow F by releasing the lock.

Therefore, the battery packs 3-1 and 3-2 are mounted on the mounting portions 2-1 and 2-2 so as to be easily attached and detached.

[0016]

[Problems to be Solved by the Invention]
By configuring the battery packs 3-1, 3-2 in 2-2 to be locked or unlocked by the lock claws 31, 35, as shown in (c) of FIG. 5 and (d) of FIG. To
When the battery packs 3-1 and 3-2 are attached to the attachment portions 2-1 and 2-2, respectively, in the case of FIG. 5C, the battery pack 3-
Since almost the central part of 1 is locked by the lock claw 31, in the case of FIG. 6 (d), the battery pack 3-2
Since one side surface 3-2A is locked by the lock claw 35, in any case, when the external force indicated by the arrow F1 is applied to the battery packs 3-1, 3-2, the contact surfaces 2-1B, 2- 2B and back 3-
A gap S is created between 1B and 3-2B, and part of the battery packs 3-1 and 3-2 protrudes from the outer periphery of the covers 1-1A and 1-5A.
D will occur, especially the length L of the mounting parts 2-1 and 2-2
The gap S and the step D become larger as is increased.

Therefore, the external appearance is not preferable, and in addition, the configuration of FIG. 5 has a problem that a connection failure occurs between the connection portion 1-4 and the terminal piece 3-1D. Therefore, in the present invention,
The purpose is to ensure that the battery pack is locked in the mounting part and to ensure stable mounting of the battery pack.

[0018]

FIG. 1 is a diagram illustrating the principle of the first invention, and FIG. 2 is a diagram illustrating the principle of the second invention.
As shown in FIG. 1, a mounting portion 2 formed in a U shape so as to have both side walls 2A and a contact surface 2B at a predetermined position of the electronic device 1.
A battery pack attaching / detaching mechanism for detachably forming the battery pack 3 in the
It is made to protrude from one side of 2A by the lock spring 11,
Lock claw 6 having a knob 10 for retracting, and the lock claw 6
Lock hole 7 provided on the other side of the side wall 2A so as to face
And the battery pack 3 penetrates the battery pack 3 and ends 8A and 8B of the battery pack 3 are
To have a slidable movable pin 8 held by a holding spring 9 so that it is flush with both side surfaces 3A of
Alternatively, as shown in FIG. 2, a battery in which a battery pack 3 is detachably formed in a mounting portion 2 formed in a U shape so as to have both side walls 2A and a contact surface 2B at a predetermined position of an electronic device 1. A mounting and demounting mechanism for the pack, wherein the mounting section 2 is
The battery pack 3 has a first lock claw 12 projected by a lock spring 11 and a second lock claw 13 having a knob 15 so as to face the side walls 2A.
Is configured to have a slidable movable pin 8 penetrating the battery pack 3 so that the end portions 8A and 8B are substantially flush with both side surfaces 3A of the battery pack 3.

The above-mentioned problems can be solved by such a configuration.

[0020]

Operation: That is, one side wall 2A of the mounting portion 2 is provided with the lock claw 6 projected by the lock spring 11 and the other side wall 2A.
2A are provided with lock holes 7 respectively, and the battery pack 3 is provided with a movable pin 8 which is held by a holding sling 9 and slides in conjunction with the protrusion and retreat of the lock claw 6. 3 so as to lock and unlock both side surfaces 3A, or one side wall 2A of the mounting portion 2 is provided with a first lock claw 12 projected by a lock spring 11 and the other side wall 2A is provided with a guide hole. Second lock claws 13 that are projected and retracted by the guide of 14 are provided respectively, and the battery pack 3 has a first lock claw 12 and a second lock claw 13.
The movable pin 8 which slides by the protrusion of 13 is provided, and the second
The both sides 3A of the battery pack 3 are locked and unlocked by projecting and retracting the lock claw 13 of the battery pack 3.

In either case, the battery pack 3 is locked and unlocked on both sides of the battery pack 3.
3A, when the battery pack 3 is mounted on the mounting part 2, the gap S and the step like the conventional
It is possible to prevent D from occurring.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIGS. FIG. 3 is an explanatory view of an embodiment according to the first invention, (a) is a front view, (b1) to (b3) are illustrations of attachment / detachment, and FIG. 4 is an embodiment according to the second invention. In the explanatory view, (a) is a front view, and (b1) to (b3) are detachable explanatory views. Throughout the drawings, the same reference numerals denote the same objects.

According to the present invention, as shown in FIG. 3A, a lock claw 6 protruding by a lock spring 11 is provided on one side wall 2A of a mounting portion 2 formed at a predetermined position of an electronic device 1.
The other side wall 2A is provided with a lock hole 7 facing the lock claw 6 respectively, and the mounting portion 2 is used to attach and detach the battery pack 3 formed by housing a plurality of nickel cadmium elements 30 in the case 3C. It was done like this.

The battery pack 3 is provided with a movable pin 8 which is slidable. Normally, as shown in FIG. 3 (b1), the ends 8A and 8B of the movable pin 8 are connected to the battery pack 3.
One end is provided on the holding piece 3E and the other end is provided with a holding spring 9 that is locked to the movable pin 8 so as to be flush with the side face 3A of the device 3.

Therefore, the guide 5 formed on the side wall 2A of the mounting portion 2 and the groove formed on the side surface 3A of the battery pack 3
Match the battery pack 4 with the battery pack 3
Put on and take off.

When the battery pack 3 is mounted on the mounting portion 2, first, as shown in FIG. 3 (b2), the knob 10 is indicated by an arrow D.
Slide in the direction to retract the protrusion of the claw portion 6A of the lock claw 6, and attach the battery pack 3 to the attachment portion 2 as shown by arrow F.

Next, as shown in FIG. 3 (b3), the mounting portion 2
The rear surface 3B of the battery pack 3 is brought into contact with the contact surface 2B of the connection terminal 1A provided on the mounting portion 2.
And the terminal piece 3D provided on the back surface 3B of the battery pack 3.
Are connected to charge and discharge the power supply in the battery pack 3, and one end of the movable pin 8 is connected.
8A is pressed by the protrusion of the claw 6A, the other end 8B is inserted into the lock hole 7, and both side surfaces 3A of the battery pack 3 are locked.

Therefore, even if an external force is applied to the battery pack 3, the above-mentioned gap S or step D does not occur. When removing the battery pack 3 from the mounting portion 2, slide the knob 10 in the direction of arrow D to retract the protrusion 6A of the lock pawl 6 as described above.
The spring force of the holding spring 9 causes the end 8B of the movable pin 8 to be removed from the lock hole 7 to release the lock, and the battery pack 3 can be removed from the mounting portion 2 in the direction opposite to the arrow F.

In the case of FIG. 4A, one side wall 2A of the mounting portion 2 is always provided with a first lock claw 12 protruding from the side wall 2A by the lock spring 11, and the other side wall 2A is provided with a lock claw. 2nd which is slidable by guide hole 14 facing 12
The lock claws 13 are provided respectively, and the battery pack 3 formed by accommodating a plurality of nickel cadmium elements 30 in the case 3C in the mounting portion 2 can be attached and detached.

The battery pack 3 has a flange 8C.
When the movable pin 8 is formed, the flange 8C is located between the stoppers 3F and 3G formed on the case 3C, and one end 8A of the movable pin 8 projects from the side surface 3A, the other end The portion 8B slides so as to retract from the side surface 3A, and the slide is formed so as to be restrained by the stoppers 3F and 3G.

Therefore, the guide 5 formed on the side wall 2A of the mounting portion 2 and the groove formed on the side surface 3A of the battery pack 3
Match the battery pack 4 with the battery pack 3
Put on and take off.

When mounting the battery pack 3 on the mounting portion 2, first, as shown in FIG. 4 (b1), mount the battery pack 3 on the mounting portion 2 as shown by the arrow F, and As shown in b2), the side 3A of the battery pack 3
The protrusion of the lock claw 12 is retracted. In this case, even if the first lock claw 13 projects, it is also retracted.

Next, as shown in (b3) of FIG.
The rear surface 3B of the battery pack 3 is brought into contact with the contact surface 2B of the connection terminal 1A provided on the mounting portion 2.
And the terminal piece 3D provided on the back surface 3B of the battery pack 3.
Are connected to charge and discharge the power supply in the battery pack 3, and one end of the movable pin 8 is connected.
8A is pressed by the protrusion of the first locking claw 12, and the other end 8B is moved by the sliding of the movable pin 8 to the second locking claw 13
The battery pack.
Both sides 3A of 3 will be locked.

Therefore, even if an external force is applied to the battery pack 3, the above-mentioned gap S or step D does not occur. Also, when removing the battery pack 3 from the mounting portion 2, slide the knob 15 in the direction of arrow E, project the second lock claw 13, and set both ends 8A and 8B of the movable pin 8 in place.
By aligning and with both sides 3A of the battery pack 3, the battery pack 3 can be pulled in the direction opposite to the arrow F and the battery pack 3 can be removed from the mounting portion 2.

Therefore, in any case, the battery pack is mounted on both sides of the battery pack by the lock, so that the battery pack can be securely mounted, and the battery pack can be removed / removed by one picking operation. The lock is released by this, and the operation becomes easy.

[0036]

As described above, according to the present invention,
The battery pack is provided with movable pins penetrating both side surfaces, and the mounting portion has a lock claw protruding from the side wall, a lock hole facing the lock claw, or a first lock claw protruding from the side wall. A second lock claw facing the lock claw is provided so that the battery pack is locked on both side surfaces of the battery pack when the battery pack is mounted.

Therefore, as compared with the conventional battery pack mounting, the lock is more reliable, the appearance is impaired and the contact failure of the connection terminals can be prevented, and the battery pack can be mounted stably, which is a practical effect. Is large.

[Brief description of drawings]

FIG. 1 is an explanatory view of the principle of the first invention.

FIG. 2 is an explanatory view of the principle of the second invention.

FIG. 3 is an explanatory diagram of an embodiment according to the first invention.

FIG. 4 is an explanatory diagram of an embodiment according to the second invention.

FIG. 5 is a conventional explanatory view (No. 1)

FIG. 6 is a conventional explanatory view (No. 2)

[Explanation of symbols]

1 electronic device 2 mounting part 3 battery pack 4 groove 5 guide 6 lock claw 7 lock hole 8 movable pin 9 holding spring 10 knob 11 lock spring 12 first lock claw 13 second lock claw 14 guide hole 2A side wall 2B contact Side 3A Side 3B Rear 8A, 8B End

Claims (2)

[Claims] 1. A mounting portion formed in a U-shape so as to have both side walls (2A) and an abutting surface (2B) at a predetermined position of an electronic device (1).
A battery pack attaching / detaching mechanism in which a battery pack (3) is detachably formed in (2), wherein the mounting portion (2) is projected from one of the side walls (2A) by a lock spring (11), Picks for evacuation (10)
And a lock hole (7) provided on the other side wall (2A) so as to face the lock claw (6), and the battery pack (3) is a battery pack (3).
Penetrating (3), the ends (8A, 8B) of the battery pack (3)
A battery pack attaching / detaching mechanism having a movable slidable pin (8) held by a holding spring (9) so as to be flush with both side faces (3A) of the battery. 2. A mounting portion formed in a U shape so as to have both side walls (2A) and a contact surface (2B) at a predetermined position of the electronic device (1).
A battery pack attaching / detaching mechanism in which a battery pack (3) is detachably formed in (2), wherein the attaching part (2) includes a first lock claw (12) protruded by a lock spring (11). And a second lock claw (13) having a knob (15) so as to face the both side walls (2A), and the battery pack (3) has end portions (8A, 8B) of the battery pack. A battery pack attaching / detaching mechanism comprising a slidable movable pin (8) penetrating the battery pack (3) so as to be substantially flush with both side surfaces (3A) of (3).