JPH09307246A - Battery pack housing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact battery pack housing structure of simple construction. SOLUTION: The battery pack housing part 1a formed on a device main body 1 and the battery cover 3 which is movably connected to the side wall 1c become the housing member of a battery pack 2. A lock lever 4 is provided with a lever part 4a and a lever shaft penetrating the wall 3h of the battery housing part 1a. When the lever part 4a is rotated in A-direction, a battery pack cover 3 is fixedly supported to the battery pack housing part 1a by the battery pack cover fixing means which is formed on the battery pack housing part 1a, the battery pack cover 5 and the lever shaft. The battery pack 2 is fixed to the battery pack housing part 1a and the battery pack cover 3 by the battery pack fixing means, and the wall 3h penetrating part of the lever shaft is formed in a waterproof structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery pack accommodating structure having a battery pack accommodating portion suitable for a portable device using a battery pack as a power source and a battery pack cover forming a lid of the battery pack accommodating portion. In particular, the present invention relates to a battery pack housing structure capable of fixing a battery pack cover to the battery pack housing portion, fixing the battery pack to the battery pack housing portion, and waterproofing the battery pack.

[0002]

2. Description of the Related Art Japanese Patent Laying-Open No. 58-211131 (title of invention: battery lid device in waterproof camera) is disclosed as a conventional battery pack housing structure of this kind.
The disclosed battery pack housing structure includes a first battery cover that seals the periphery of the opening of the battery housing with an elastic member, and a second battery cover that has a lock portion for fixing the first battery cover. The second battery cover is supported by the first battery cover with a shaft that is slidable in the battery storage chamber in a vertical direction, and the shaft has an elastic member that seals the slide portion when locked, When the lock is released, the first battery cover can be removed from the battery storage cover by pulling the second battery cover. This battery pack housing structure is characterized in that it can be formed compactly.

[0003]

The above-mentioned conventional battery pack housing structure requires two battery lids and is complicated in structure, so that not only the cost is increased but also the battery is easily broken. .

In addition, the above-described battery pack housing structure has a drawback that the battery pack can be housed and taken out only in one direction of the battery housing room, and the operation of housing and taking out the battery pack is troublesome.

[0005]

The battery pack accommodating structure of the present invention includes a substantially rectangular bottom surface formed in the main body of the apparatus and side walls formed on three surfaces vertically surrounding the outer periphery of the bottom surface. A battery pack accommodating portion having an outer surface of the bottom surface having no side wall in the vertical direction as an opening surface and a substantially rectangular parallelepiped space on the bottom surface as an accommodating space for the battery pack; A first wall body movably connected to the first side wall and a second wall body having an opening facing the first wall, and an outer periphery of the bottom surface facing the opening surface. Each of the battery packs has an abuttable wall, and an open surface of the wall abuts on a corresponding surface of the battery pack accommodating portion such that the first side wall and the second wall are opposed to each other. The battery together with the battery pack housing A battery pack cover accommodating the battery pack, and a lever shaft disposed in the opening so as to penetrate the second wall, and rotating the lever disposed on the outer surface side of the opening to open the opening. A lock lever that rotates about the axis of the battery pack; a battery pack cover fixing means that fixes the battery pack cover to the battery pack housing by rotation of the lever shaft; and a battery that rotates the lever shaft. Battery pack fixing means for bringing one surface of the pack into contact with the first side wall of the battery pack accommodating portion; and waterproof means for forming a waterproof structure between the opening and the lever shaft by rotation of the lever shaft. Is provided.

In one of the battery pack housing structures, the battery pack cover fixing means is fixed to the lever shaft.
A lock piece having a hook provided on an arm extending in a direction perpendicular to the lever shaft, and an engaging portion provided on the battery pack accommodating portion and engaging the hook moved by rotation of the lever shaft. Can be adopted.

[0007] Another one of the battery pack accommodating structures is that the battery pack fixing means is provided with a lock plate disposed at a tip of the lever shaft with a plate surface perpendicular to the axis, and a lock plate provided by rotation of the lever shaft. A lock plate pushing mechanism for moving a lever in the direction of the first wall to move the lock plate in the direction of the first side wall may be provided.

In the battery pack accommodating structure, the waterproofing means may move the lock lever in the direction of the first wall to move the lock lever to the opening, the shaft of the lock lever, and the outer surface of the first wall. A configuration including an O-ring compressed between the opposing surfaces of the lock lever may be employed.

In the battery pack housing structure, the open surface of the wall of the battery pack cover is inclined with respect to the bottom surface of the battery pack housing, and the open surface of the wall and the battery pack housing are formed. The packing which is compressed by the rotation of the lever shaft may be arranged on the contact surface with the corresponding surface.

[0010]

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

FIG. 1 is a perspective view showing an embodiment of a battery pack housing structure according to the present invention. The battery pack accommodating structure according to the present embodiment is arranged in the device main body 1 of a portable device using the battery pack 2 as a power source. The battery pack 2 includes at least one battery in a package, and has a substantially rectangular parallelepiped structure in the drawing. The battery pack housing 1a and the battery pack cover 3 forming the lid form a housing for the battery pack 2. The battery pack accommodating portion 1a has a substantially rectangular bottom surface 1d installed in the device body 1, a side wall 1c vertically surrounding the outer periphery of the bottom surface 1d, and another two side walls. The surface facing the bottom surface 1d and the surface facing the side wall 1c are opening surfaces. Battery pack cover 3
Has four walls including a top surface 3g and walls 3h and 3j that are vertically continuous on the outer periphery of the top surface 3g. The shape of the open surface 3b of these four walls is substantially the same as the open side of the side wall 1c of the battery pack accommodating portion 1a and the open side of the other two side walls and the side wall width portion at the end of the battery pack 2 insertion direction on the outer circumferential surface of the bottom surface 1d. The surface having the same shape and corresponding to the open surface 3b of the battery pack accommodating portion 1a is referred to as a cover contact portion 1b.

A wall 3j of the battery pack cover 3 is movably connected to a side wall 1c of the battery pack housing 1a by a hinge (not shown in FIG. 1). Note that a surface facing the wall 3j is a wall 3h. Battery pack cover 3
Are rotated in the direction of the clockwise arrow in the figure around the cover rotation axis 3a, which is the rotation axis of the hinge, to open the side walls 3h of the battery pack cover 3 and the like.
b contacts the side wall including the side wall 1c of the battery pack accommodating part 1a and the cover contact part 1b of the bottom surface 1d. The space surrounded by the battery pack housing portion 1a and the battery pack cover 3 at the time of this contact is the housing space of the battery pack 2. This accommodation space is the open surface 3b of the battery pack cover 3 on the bottom surface 1d.
It is an almost rectangular parallelepiped space surrounded by.

The battery pack 2 is inserted through the opening surface above or to the right of the battery pack housing 1a in FIG. After the battery pack 2 is accommodated in the battery pack accommodating portion 1a, the open surface 3b of the battery pack cover 3 is brought into contact with the cover contact portion 1b of the battery pack accommodating portion 1a, and the battery pack cover 3 is brought into contact with the battery pack accommodating portion 1a. Make a lid. Here, the side wall 1c of the battery pack accommodating portion 1a and the wall 3h of the battery pack cover 3 are facing each other. Wall 3 of battery pack cover 3
h has an opening 3d (not shown).
Is provided with a lock cover 4. The lock lever 4 is provided with a lever portion 4a. As will be described in detail later, by rotating the lever portion 4a in the direction A, the battery pack cover 3 is fixed to the battery pack accommodating portion 1a, and the battery pack 2 is fixed. The fixing to the battery pack housing 1a and the formation of the waterproof structure for the battery pack 2 are simultaneously realized. In addition,
A packing (not shown in FIG. 1) is provided on the opening surface 3b in the present embodiment, and after the battery pack 2 is accommodated in the battery pack accommodating portion 1a, the opening surface 3b of the battery pack cover 3 is attached to the battery pack. When the packing comes into contact with the cover abutting portion 1b of the housing portion 1a, the packing is compressed between the open surface 3b and the cover abutting portion 1b, so that the battery pack housing portion 1a and the battery back cover 3 The contact part also has a waterproof structure.

FIG. 2 is a sectional view of the battery pack housing structure of FIG. FIG. 3 is a sectional view showing a main part of the battery pack housing structure of FIG. 2 in detail. FIG. 4 is an exploded perspective view showing a main component configuration in the battery pack housing structure of FIG. 2 and 3 show a state where the battery pack 2 is housed in the battery pack housing 1a and the battery pack cover 3. 2, 3 and 4, the lock lever 4 and the lock piece 7 fixed to the lock lever 4 show the state after the lock lever 4a is rotated in the direction A for convenience. However, other components show the state before the rotation of the lock lever 4a. Hereinafter, the battery pack cover 3 is fixed to the battery pack accommodating portion 1a with reference to FIG. 2, FIG. 3 and FIG.
Of the battery pack to the battery pack housing 1a and the battery pack 2
The waterproof structure will be described in detail.

The bottom surface 1d of the battery pack housing 1a is an inner wall of the main body 1. Wall 3 of battery pack cover 3
An opening 3d passes through h. The lock lever 4 has a lever portion 4a arranged with a maximum surface parallel to the outer surface of the wall 3h and a lever shaft 4b having an axis perpendicular to the maximum surface of the lever portion 4a and penetrating through the opening 3d. Prepare. A lock piece 7 and a lock plate 8 are sequentially fixed to the tip of the lever shaft 4b by screws 9. In addition, wall 3h
A leaf spring 6 is disposed between the inside of the lock piece 7 and the lock piece 7.
In the direction of the side wall 1c of the battery pack housing 1a.

The lock piece 7 has a hook 7a on an arm extending in a direction perpendicular to the lever shaft 4b. Also,
When the hook 7a moves to the bottom surface 1d of the battery pack housing 1a by the rotation of the lever shaft 4b, the hook 7a
a is engaged. Now, when the lever portion 4a of the lock lever 4 is rotated in the A direction (see FIG. 4), the lever shaft 4b rotates about the axis of the opening 3d, and the lock piece 7 is entangled to rotate the hook 7a. It is engaged with the engaging portion 1e (see FIGS. 2 and 3). As a result, the cover contact portion 1b of the battery pack housing portion 1a (FIG. 1)
And the open surface 3b of the battery pack cover 3 are in strong contact with each other, so that the battery pack cover 3 is fixedly held in the battery pack accommodating portion 1a.

Here, the contact surface between the battery pack accommodating portion 1a and the battery pack cover 3, that is, the open surface 3b of the battery pack cover 3 is inclined with respect to the bottom surface 1d of the battery pack accommodating portion 1a. 2 and 4). This slope is a uniform flat slope without bending. A shallow groove is dug in the open surface 3b, and a packing 11 made of an elastic material such as rubber is adhered to the groove only in the central portion of the groove. The cover contact portion 1b of the battery pack housing portion 1a also has an open surface 3b.
A shallow trench is dug in a location corresponding to the. The depth of these grooves may be the same, and the sum of the depths of the two grooves is smaller than the diameter of the packing 11. With the setting as described above, when the cover abutting portion 1b of the battery pack accommodating portion 1a and the open surface 3b of the battery pack cover 3 strongly abut due to the rotation of the lever shaft 4b, the packing 11 abuts on the cover. It is compressed between the portion 1b and the open surface 3b, and the contact portion between the battery pack housing portion 1a and the battery back cover 3 also has a waterproof structure. Since the cover abutting portion 1b and the open surface 3b are formed as a uniform flat slope, the packing 11 has a good compression effect and the waterproof structure is improved.

FIG. 2 shows a hinge 10 that movably connects the wall 3j of the battery pack cover 3 and the side wall 1c of the battery pack housing 1a. This figure shows a state in which the open surface 3b of the battery pack cover 3 is in contact with the cover contact portion 1b of the battery pack housing portion 1a as a result of rotating the battery pack cover 3 leftward in FIG. Is shown.

Now, the lock plate 8 is attached to the lock piece 7.
The plate surface is disposed at the end of the lever shaft 4b with the plate surface perpendicular to the axis. When the lever shaft 4b is rotated by the rotation operation of the lever portion 4a, a portion of the battery pack cover 3 having the lever portion 4a outside the wall 3h is moved in the direction of the wall 3h. The lock plate 8 integrally coupled to the lock lever 4 is pushed by the leaf spring 6 and pushed out in the direction of the side wall 1c of the battery pack housing 1a. As a result, the plate surface of the lock plate 8 is
Of the battery pack 2 is brought into contact with the side wall 1c of the battery pack housing 1a. As a result, the freedom of movement of the battery pack 2 in the battery pack accommodating portion 1a and the battery pack cover 3, that is, rattling is eliminated.

In the battery pack accommodating structure according to the present embodiment, a waterproof structure is provided between the opening 3d of the battery pack cover 3 and the lever shaft 4b of the lock lever 4 by the O-rig 5 by the rotation of the lever 4a. . The opening 4d is the wall 3
The tapered portion 3c whose diameter increases in the outer direction of h is provided, and an O-ring 5 made of an elastic material such as synthetic rubber is embedded in the tapered portion 3c. Now, when the lever shaft 4b rotates in the direction A, the portion of the battery pack cover 3 having the lever portion 4a outside the wall 3h is moved in the direction of the wall 3h. As a result, the O-ring 5 is
d, between the lever shaft 4b and the surface of the lock lever 4 facing the outer surface of the wall 3h, and the space between the opening 3d and the lever shaft 4b becomes a waterproof structure.

The above-mentioned lock lever 4, lock piece 7 and lock plate 8 for fixing the battery pack 2 and the battery pack cover 3 can be composed of very small parts, and the waterproof O-ring 5 is a wall of the battery pack cover 3. Since the battery pack is inserted into 3h, the battery pack housing structure according to the present embodiment also has an effect that it can be formed compact.

FIG. 5 is a detailed structural view of the battery pack cover 3 of the battery pack accommodating structure according to the present embodiment.
Is a sectional view, and (b) is a front view. FIGS. 6A and 6B are detailed structural views of the lock lever 4 of the battery pack housing structure according to the present embodiment, wherein FIG. 6A is a sectional view and FIG. 6B is a front view. Hereinafter, the lever portion 4a will be described with reference to FIGS.
Battery housing 1a of lock shaft 4b by rotating
The operation of moving in the direction of the side wall 1c will be described in detail.

The battery pack cover 3 has four fitting protrusions 3e protruding from the outer surface 3f of the wall 3h by a predetermined height h.
1, 3e2, 3e3 and 3e4 are provided concentrically around the opening 3d. Fitting projections 3e1 to 3e
e4 Each is separated into four equal parts, and these separated parts are at the same height as the outer surface 3f. The circumferential length of each of the fitting projections 3e1 to 3e4 is set to be longer than the circumferential length of each of the separating portions.

The lock lever 4 has four fitting recesses 4e1, 4e2, 4e3 and 4e4 dug from the inner surface 4f facing the wall 3h by a predetermined height h and is concentric about the lever shaft 4b. It is provided in. Fitting recess 4
Each of e1 to 4e4 is separated into four equal parts, and these separated parts are at the same height as the inner surface 4f. The diameter and circumferential length of each of the fitting recesses 4e1 to 4e4 are:
It is the same as each of the fitting projections 3e1 to 3e4 of the battery pack cover 3.

Now, the lever portion 4b of the lock lever 4 is
When facing in the direction shown in FIG. 1, the inner surface 4 f of the lock lever 4 faces the fitting projection 3 e 1 of the battery pack cover 3.
Or 3e4. At this time, the lock piece 7 coupled to the lever shaft 4b by the screw 9 fastened to the screw hole 4c of the lock lever 4 does not push the battery pack 2, and the battery pack 2 is replaced with the battery pack housing 1a and the battery pack. It is in a state where it can move freely inside the cover 3. Here, the lever portion 4a is rotated in the direction A, and the fitting recesses 4e1 and 4e of the lock lever 4 are rotated.
When the protrusions 2, 4 e 3 and 4 e 4 respectively overlap with the fitting projections 3 e 1, 3 e 2, 3 e 3 and 3 e 4 of the battery pack cover 3, the lock lever 4 is pulled in the direction of the side wall 1 c of the battery pack housing 1 a by the elastic force of the leaf spring 6. The fitting recesses 4e1, 4e2, 4e3 and 4e4 are fitted to the fitting protrusions 3e.
1, 3e2, 3e3 and 3e4, respectively.
As a result, the lock plate 8 and the side wall 1c fixedly hold the battery pack 2, and the O-ring 5 held by the tapered portion 3c is compressed to provide a waterproof structure between the opening 3d and the lever shaft 4b. become.

[0026]

As described above, in the battery pack housing structure of the present invention, the battery pack is housed in the battery pack housing portion formed in the main body of the apparatus and the battery pack cover serving as the lid of the battery pack housing portion. A lever shaft disposed at an opening of the first wall is penetrated through the first wall of the battery pack cover, and the lever is disposed at an outer surface of the opening to rotate the lever shaft. A battery pack cover fixing means for fixing the battery pack cover to the battery pack accommodating portion, the lock lever being provided with a lock lever for rotating the opening around the axis; Since the battery pack fixing means to be in contact with one of the side walls and the waterproof means for forming a waterproof structure between the opening and the lever shaft are simultaneously driven by the rotation of the lever shaft, it is simple. Can be a compact structure, there is an effect that reliable yet can be produced at low cost.

Further, the present invention is characterized in that the battery pack can be accommodated / removed from at least two directions and the above three functions are realized by one operation, so that the operation is easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a battery pack housing structure according to the present invention.

FIG. 2 is a cross-sectional view of the battery pack housing structure of FIG.

FIG. 3 is a sectional view showing a main part of the battery pack housing structure of FIG. 2 in detail.

FIG. 4 is an exploded perspective view showing a main component configuration in the battery pack housing structure of FIG.

5A and 5B are detailed structural views of a battery pack cover 3 of a battery pack housing structure according to the present embodiment, wherein FIG.
(B) is a front view.

FIG. 6 is a detailed structural view of a lock lever 4 of the battery pack housing structure according to the present embodiment, where (a) is a sectional view,
(B) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 1a Battery pack accommodating part 1b Cover contact part 1c Side wall 1d Bottom surface 1e Engaging part 2 Battery pack 3 Battery pack cover 3a Cover rotating shaft 3b Open surface 3c Taper part 3d Opening 3e1-3e4 Fitting convex part 3f Outside Surface 3g Top surface 3h, 3j Wall 4 Lock lever 4a Lever part 4b Lever shaft 4c Screw hole 4e1-4e4 Fitting recess 4f Inner surface 5 O-ring 6 Leaf spring 7 Lock piece 7a Hook 8 Lock plate 9 Screw 10 Hinge 11 Packing

Claims (5)

[Claims] 1. A surface including a substantially rectangular bottom surface formed in an apparatus main body and side walls formed on three surfaces vertically surrounding an outer periphery of the bottom surface, and having no vertical side wall on an outer periphery of the bottom surface. A battery pack accommodating portion having a substantially rectangular parallelepiped space on the bottom surface as an accommodating space for the battery pack, and a first side wall facing the opening surface of the side wall.
Abuts on an outer periphery of the side wall including a first wall body movably connected to a side wall of the first wall body and a second wall body having an opening opposed to the first wall body and the bottom surface opposed to the opening surface. An open surface of the wall is in contact with a corresponding surface of the battery pack housing so that the first side wall and the second wall are opposed to each other. A battery pack cover accommodating the battery pack together with the battery pack accommodating portion; and a lever portion arranged on an outer surface side of the opening portion with a lever shaft arranged on the opening portion so as to penetrate the second wall. A lock lever that rotates about the axis of the opening substantially by a rotation operation of the opening, a battery pack cover fixing means that fixedly holds the battery pack cover in the battery pack housing by rotation of the lever shaft, The rotation of the lever shaft Battery pack fixing means for bringing one surface of the battery pack into contact with the first side wall of the battery pack accommodating portion; and waterproofing for forming a waterproof structure between the opening and the lever shaft by rotation of the lever shaft. Means for accommodating a battery pack. 2. A lock piece having a hook provided on an arm fixed to the lever shaft and extending in a direction perpendicular to the lever shaft, wherein the battery pack cover fixing means is provided on the battery pack accommodating portion. 2. The battery pack housing structure according to claim 1, further comprising an engaging portion for engaging said hook moved by rotation of said lever shaft. 3. The battery pack fixing means comprises: a lock plate disposed at a tip of the lever shaft with a plate surface perpendicular to the axis; and a rotation of the lever shaft for moving the lock lever toward the first wall. 2. A battery pack housing structure according to claim 1, further comprising: a lock plate pushing mechanism for moving the lock plate toward the first side wall by moving the lock plate toward the first side wall. 4. The lock lever, wherein the waterproofing means faces the opening, the shaft of the lock lever, and the outer surface of the first wall by moving the lock lever in the direction of the first wall. 4. The battery pack housing structure according to claim 3, further comprising an O-ring compressed between the battery pack and the surface of the battery pack. 5. An open surface of the wall of the battery pack cover is inclined with respect to a bottom surface of the battery pack housing, and the open surface of the wall and a corresponding surface of the battery pack housing are provided. 5. The battery pack housing structure according to claim 4, wherein a packing compressed by rotation of said lever shaft is disposed on said contact surface.