JPH08185841A - Battery casing attaching and detaching device - Google Patents

Abstract

PURPOSE: To provide a battery casing attaching and detaching device in which the exposed part of an electrode on the connecting surface of a battery casing to a main body casing is eliminated, the main body casing is made compact, and operation is made simple. CONSTITUTION: In a battery casing attaching and detaching device, an engaging axis 21 and a battery holder 22 having a battery side electrode terminal are arranged on the connecting surface 20 of a battery casing 2. A locking mechanism having an engaging axis hole 11 and holding the engaging axis 21, a main body side electrode terminal set on the inside of a holder opening 12 on the connecting surface, and a release knob 5b for unlocking are arranged on the connecting surface 10 of a main body casing 1. An electrode cover 3 for covering a main body side electrode terminal is arranged, and for connection, the electrode cover 3 is moved in connection with relative sliding of the battery casing 2, and the electrode terminals on the main body side and the battery side are connected. The useless space is not generated on the connecting surface between both casings, and the main body casing is made compact. Since the main body side electrode terminal is positioned on the inside of the opening, damage caused by external force is hardly received.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery casing attachment / detachment device which can be attached to and detached from a portable cassette player, MD (mini disc) player or the like.

[0002]

2. Description of the Related Art In a small-sized device such as a portable cassette player or MD player, a secondary battery is generally provided inside the main body of the device, but the primary battery is often used to extend the driving time during carrying. It is used by connecting a detachable battery casing with a built-in battery. Therefore, the attachment / detachment frequency of the main body casing and the battery casing becomes high, and the durability of the attachment / detachment device is required. The attachment / detachment device for the battery casing provided in such a conventional portable MD player will be described below.

FIG. 15 shows a device body such as an MD player. A battery casing 7 is attached to and detached from the body casing 6. The main body casing 6 has a concave portion, and female hooks 61 ... Are integrally formed with the main body casing 6 at the opening edge of the concave portion.

On the bottom surface of the concave portion of the main body casing 6, a semi-disc shaped electrode terminal 62 and a lock member 8 are arranged so as to project. On the other hand, the connection surface of the main body casing 6 has a rectangular opening, and a release knob 8a integrally formed with the lock member 8 is arranged in the opening.

FIG. 16 shows a battery casing 7 connected to the body casing 6, and the battery casing 7 has male hooks 71 ... Further, an electrode hole 72 into which the main body side electrode terminal 62 is inserted is formed in the center of the connection surface, and the main body side electrode terminal 62 is energized by the electrode terminal inside the electrode hole 72. Further, a lock member hole 9 for inserting the lock member 8 is formed in the connection surface of the battery casing.

FIG. 17 shows a cross-sectional view of the hook fitting portion in a direction perpendicular to the connecting surface when the main body casing 6 and the battery casing 7 are mounted. When the battery casing 7 is attached to the body casing 6, the width is W, and the body casing 6 and the battery casing 7 are
A space having a width of a is formed between and by the convex portion.

When the battery casing 7 is attached to the main body casing 6, a release knob 8a provided on the main body of the device.
Is slid by a certain amount to push down the lock member 8 into the body casing 6, and the female hooks 61 ...
... are slid relative to each other and fitted.
Further, when the release knob 8a is released, the lock member 8 is inserted into the lock member hole 9 by the urging force. As a result, the battery casing 7 is locked to the main body casing 6 and accidental detachment is prevented. In order to detach the battery casing 7 from the main body casing 6, first, the release knob 8a is slid by a certain amount in the unlocking direction, and then the battery casing 7 is relatively slid with respect to the main body casing 6 to make the female hook. 61 ...
The battery casing 7 was detached after the connection between the male hook 71 and the male hook 71 was released.

[0008]

In the above-mentioned conventional attaching / detaching device, since the fitting structure of the female hook 61 and the male hook 71 is adopted, there is a waste having a width a between the battery casing 7 and the main body casing 6. This creates a space that is unfavorable for downsizing the equipment. Further, the electrode terminal 62 is
Since it is exposed to a large extent except when the battery casing 7 is connected, the appearance of the product becomes unsightly, and there is the problem that the conductivity decreases due to the adhesion of dust and the corrosion of the plating on the exposed electrode terminals. It exists and is easily affected by external force, and there is a risk of damage to the electrode terminals. in addition,
To remove the mounted battery casing 7 from the main casing 6, (1) slide the release knob 8a in the releasing direction, (2) move the battery casing 7 from the connection surface to release the fitting of the hooks. Was going on. That is, the operation of separating the battery casing 7 requires two steps, and the separating operation is performed with both hands, which is troublesome.

In order to solve the above-mentioned problems, the present invention eliminates the exposed portion of the electrode on the connection surface with which the battery casing abuts, reduces the size of the main body casing, and attaches and detaches the battery casing with less operation. Is intended to provide.

[0010]

In order to achieve the above object, the invention according to claim 1 is a battery casing attaching / detaching device for connecting a main body casing of an electronic device and a battery casing containing a battery to the main body casing. A plurality of engaging shaft holes and openings are formed on the connection surface of the main body side electrode terminal on the inside of the opening, while the connecting surface of the battery casing is inserted into each of the engaging shaft holes and the relative casings of both casings are connected. A plurality of engaging shafts that engage with the engaging shaft holes by sliding, and project the battery portion side electrode terminals that are inserted into the opening of the body casing and that are connected to the body side electrode terminals in the engaged state of the engaging shafts and the engaging shaft holes. And a lock mechanism for holding the engagement state between the engagement shaft and the engagement shaft hole.

According to a second aspect of the present invention, in the first aspect of the present invention, an electrode cover having an opening into which a battery-side electrode terminal is inserted is slidably provided inside the main body casing, and the electrode cover is always provided. An elastic member for urging in one direction to hold the electrode terminal at a position is provided, and the electrode cover is slid along with the battery casing. According to a third aspect of the invention, in the second aspect of the invention, one of the engaging shafts and the electrode cover are engaged with each other.

According to a fourth aspect of the present invention, in the first, second or third aspect of the present invention, the lock mechanism is rotatable between an engaging position and a non-engaging position in the main body casing and is always engaged by an elastic member. The lock lever is rotated from the engagement position to the non-engagement position as the engagement shaft moves in the engagement direction, and the engagement lever is engaged with the engagement shaft by returning to the engagement position. It is characterized by preventing the movement of the in the engagement releasing direction.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the lock mechanism is rotatable between an engaging position and a non-engaging position in the main body casing and is always held at the engaging position by an elastic member. A lock lever is included, and the lock lever is rotated from the engagement position to the non-engagement position with the movement of the engagement shaft in the engagement direction, and is engaged with the engagement shaft by returning to the engagement position to release the engagement shaft in the engagement release direction. While the lock lever is displaced along with the rotation of the lock lever and the lock lever is rotated from the engaging position to the non-engaging position, the battery casing is temporarily restricted from sliding in the detaching direction. It is characterized in that a regulating member is provided. According to a sixth aspect of the invention, in the invention according to the fourth or fifth aspect, a release knob for rotating the lock lever to a non-engaging position is exposed to the outside at a position near the connecting surface of the main body casing, and is released. The operation direction of the knob and the sliding direction when the battery casing is detached are matched.

[0014]

Therefore, according to the first aspect of the present invention, the main body casing and the battery casing can be slid relative to each other to be connected, and no useless space is generated between both casings. Further, according to the second aspect of the invention, since the main body side electrode terminal is inside the opening and is covered with the electrode cover, the main body side electrode terminal is less likely to be affected by external force, and the possibility of damage to the main body side electrode terminal is reduced. . According to the third aspect of the invention, the electrode cover can be moved in conjunction with the battery casing without providing any additional means for sliding the electrode cover.

According to the fourth aspect of the invention, the lock lever is rotated from the engagement position to the non-engagement position with the movement of the engagement shaft in the engagement direction. Furthermore, when the lock lever returns to the engagement position, it engages with the engagement shaft,
The engagement shaft is prevented from moving in the engagement release direction. According to the invention of claim 5, when the lock lever is pivoted to the non-engaged position to release the lock, the battery casing does not slide to the detached position and accidentally fall off. According to the sixth aspect of the invention, when the lock lever is rotated to the non-engagement position by operating the release knob, the battery casing slides in the same direction as the operation direction of the release knob to release the engagement shaft. Move to the separated position.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. FIG. 1 is a perspective view of a device main body equipped with the attachment / detachment device of the present invention, in which the main body casing 1 and the connection surface 10 with the battery casing 2 are front faces. At the center of the connection surface 10, the main body side electrode terminal 1 is provided inside.
A rectangular holder opening 12 with 3a and 13b is drilled. Further, the connecting surface 10 is provided with four engaging shaft holes 11a and 11b having the same shape. The hook shaft hole 1
In the shape of No. 1, a circular hole for inserting the engaging shaft 21 is opened, and a long hole for slidingly engaging the engaging shaft 21 is formed at the right end of the circular hole. In addition, the vertical width of the elongated hole is smaller than the diameter of the circular hole.

FIG. 2 is a perspective view of the battery casing 2 of the present invention, and the connection surface 20 with the main body casing 1 is the front surface. On the connection surface 20, in order to connect the battery casing 2 to the main body casing 1, four engaging shafts 21a to 21d of the same shape are provided.
One is arranged. An engaging shaft 21b is provided near the upper left end of the connecting surface 20, and an engaging shaft 21a is provided near the lower left end. Further, the engaging shaft 21b is the engaging shaft 21.
It is located closer to the center of the upper part of the connection surface 20 than a. On the other hand, the engaging shaft 21c is provided in the vicinity of the upper right end of the connecting surface 20,
The engaging shaft 21d is provided just below the engaging shaft 21c near the lower right end.
Are arranged respectively.

The structure of the engaging shaft 21 is a cylinder as can be seen from FIG. 2, but as shown in the sectional view of FIG. 3, the tip portion 211 and the end portion 212 near the connecting surface 20 have different diameters. The diameter of the tip portion 211 is larger than the diameter of the end portion 212. As described in the explanation of the shape of the engaging shaft hole 11, after inserting the engaging shaft 21 into the circular hole portion of the engaging shaft hole 11 and sliding the engaging shaft 21 into the long hole portion of the engaging shaft hole 11. , The end portion 211 is engaged.

A cube-shaped terminal holder 22 is arranged at the center of the connecting surface 20. The terminal holder 22 is
Insulating member 22c from the upper surface, plus battery-side electrode terminal 2
2a, insulating member 22c, negative battery side electrode terminal 2
2b and the insulating member 22c are stacked in this order in the form of plate-shaped members. The terminal holder 22 is provided at the center of the connection surface 20 in order to avoid interference with internal parts when the battery casing 2 is mounted. That is, the terminal holder 22 is arranged so as to project from the central portion of the connection surface 20 so as to be inserted into the holder opening 12 of the main body casing 1.

FIG. 4 shows a state in which the battery casing 2 is mounted on the main body casing 1. Here, the main body casing 1 and the battery casing 2 have substantially the same shape and the same dimensions as the connection surface 10 and the connection surface 20 in order to improve the design perfection at the time of uniting. Further, FIG. 5 shows the battery casing 2 shown in FIG. In the state where the battery casing 2 of FIG. 5 is attached to the main body casing 1, there is a rectangular lower portion near the right end of the main body casing 1 of the connection line on the upper surface, and the release knob 5b is provided here. Has been done.

FIG. 6 is a front view of the connection surface 20 of the battery casing 2, and the engaging shafts 21a to 21d are hatched for easy distinction from the attachment / detachment device of the main body casing 1. As shown in FIG. A procedure for mounting the battery casing 2 will be described in order from FIG. 7 to FIG. 7 and 9
Is a view of the inside of the connection surface 10 from the inside of the main body casing 1. FIG. 8 is a view of the connection surface 10 from the opposite direction of FIG. 7 and FIG.

In FIGS. 7 and 8, the engaging shaft 11 is in the non-engaging position, and the engaging shaft hole 1 provided in the main body casing 1 is shown.
1a, the engaging shaft 21a in the circular hole portion, the engaging shaft 21b in the circular hole portion in the engaging shaft hole 11b, the engaging shaft 21c in the circular hole portion in the engaging shaft hole 11c, the engaging shaft 21c in the circular hole portion in the engaging shaft hole 11d. 21d
Each is in a state of being inserted. The plate-shaped electrode cover 3 disposed on the inner surface of the connection surface 10 has a horizontally long mounting hole 30a,
30 b is bored, and an electrode cover shaft 3 a and an electrode cover shaft 3 b are arranged on the inner surface of the connection surface 10. The electrode cover 3 is connected to the electrode cover shaft 3a through the mounting hole 30a,
It is movably supported in the horizontal direction by the electrode cover shaft 3b through the mounting hole 30b. Further, the electrode cover 3 is biased rightward by the spring 33.

On the other hand, a rectangular electrode cover hole 31 is formed in the central portion of the electrode cover 3, and the terminal holder 2
The electrode cover hole 31 for inserting the 2 into the terminal holder 2
Made slightly larger than 2. Terminal holder 22
Is inserted through the holder opening 12 and the electrode cover hole 31. The contact portion 32 of the electrode cover 3 is in contact with the engaging shaft 21b. A lock lever 4 is rotatably arranged by a lock lever shaft 42 in the vicinity of the engaging shaft hole 11a, and is biased counterclockwise by a spring 41. The right end portion of the lock lever 4 is provided with an inclined portion 4a that is in contact with the engaging shaft 21a. Further, a lock release claw 4b is provided on the lower right end of the lock lever 4. Further, on the inner surface of the main body casing 1, a release lever 5 is rotatably arranged at a lower right position of the lock lever 4 by a release lever shaft 51. Release lever 5
The lower part has a release knob 5b exposed to the outside of the main body casing 1, and the upper part has an action part 5a.

FIG. 9 shows the state of the engaging position. The operation of the lock lever 4 when the non-engaging position shown in FIG. 7 reaches the engaging position shown in FIG. 9 will be described below. When a force is applied to the inclined portion 4a of the lock lever 4 from the engaging shaft 21a, the lock lever 4 rotates clockwise, and when the engaging shaft 21a passes over the upper end portion of the inclined portion 4a, it is applied to the lock lever 4. Since the force that had been applied disappears and the lock lever 4 is biased by the spring 41, it rotates counterclockwise and returns to the initial position, and the engaging shaft 21a
Is held so as not to move by a lock portion 4c perpendicular to the engaging shaft 21a.

During the operation of the lock lever 4, the contact portion 32 of the electrode cover 3 is pushed by the engaging shaft 21b, so that the electrode cover 3 slides to the left. Thereby, the electrode cover hole 31
The terminal holder 22 inserted in the battery holder also moves to the left integrally with the electrode cover hole 31 and then stops, and the battery side electrode terminal 22a is connected to the positive main body side electrode terminal 13a and the negative main body side electrode terminal 13b. The battery-side electrode terminals 22b are respectively connected to. The detaching operation of the battery casing 2 mounted on the main body casing 1 will be described with reference to FIG. When the battery casing 2 is attached, the lock casing 4 holds the battery casing 2 at the engaging position shown in FIG. Here, by rotating the release knob 8a exposed to the outside of the main body casing 1 clockwise, the release lever 5 rotates clockwise.
Further, the release knob 8a is attached to the release lever shaft 5c.
By the action portion 5a existing in a direction substantially opposite to the above, the lock release claw 4b is pushed down, whereby the lock lever 4 rotates counterclockwise. Thereby, the lock portion 4c of the lock lever 4
Is pushed down below the opening of the engaging shaft hole 11a to unlock the battery casing 2. This time,
The engaging shaft 21b is biased to the right by the abutting portion 32 of the electrode cover 3. Therefore, when the lock is released as described above, the battery casing 2 automatically moves to the right. And the state shown in FIG. 11 is obtained.

Simultaneously with the movement of the battery casing 2, the body side electrode terminals 13a and 13b are moved to the battery side electrode terminal 22.
Since a and 22b are separated from each other, the power supply from the battery casing 2 is cut off. In FIG. 11, the engaging shafts 21a-
The d moves to the circular holes of the engaging shaft holes 11a to 11d to reach the non-engaging position, and the battery casing 2 is in the detached state. When the battery casing 2 is detached, the connecting surface 10 becomes the battery casing 2
Before mounting, that is, the positive electrode terminal 13 on the main body side
The “a” and the main body negative terminal 13b have returned to the state of being hidden by the electrode cover 3. Summarizing the detaching operation described above, the battery casing 2 can be separated by only one-step operation such as moving the release knob 5b to unlock.

In the case of this embodiment shown in FIG. 12, there is no space between the connecting surface 10 and the connecting surface 20 for the entire length in the state where the battery casing 2 is attached to the main body casing 1. Since there is no space of width a, the value is (W−a), which is smaller than the conventional example.

Next, another embodiment of the present invention shown in FIGS. 13 and 14 will be described. In the above-described embodiment, when the lock of the battery casing 2 by the lock lever 4 is released, the battery casing 2 receives the biasing force of the spring 33 via the electrode cover 3, so that the battery casing 2 immediately moves to the state of FIG. Therefore, the engaging shafts 21a to 21d are connected to the engaging shaft holes 11a to 11d.
In the present embodiment, there is a concern that the battery casing 2 may be disengaged from d and may be accidentally detached. The regulating member 6 for temporarily regulating the sliding in the direction is provided, and the battery casing 2 is regulated by the regulating member 6.
Is suddenly restricted from sliding to the detached position shown in FIG.

Specifically, as shown in FIGS. 13 and 14, the restricting member 6 is provided integrally or integrally with the lock lever 4, and the restricting member 6 is engaged with the lock lever 4 as shown in FIG. It is located outside the circular hole portion of the engaging shaft hole 11b when it is in the position, and protrudes into the circular hole portion of the engaging shaft hole 11b when it is rotated to the non-engaging position as shown in FIG. .

Therefore, when the lock lever 4 is rotated from the position of FIG. 13 to the position of FIG. 14 and the lock is released,
Although the battery casing 2 slides due to the urging force of the spring 33, the battery casing 2 does not suddenly slide to the detached position shown in FIG. 11 due to the contact between the regulation member 6 and the engaging shaft 21b. Therefore, unlike the previous embodiment, the battery casing 2 will not accidentally drop off. The battery casing 2 is slid to the position shown in FIG. 11 after the lock lever 4 is returned to the position shown in FIG. 13 by the spring 41.

[0031]

As described above, according to the first aspect of the present invention, it is possible to reduce the size of the main body casing without generating a wasteful space between the connecting surface between the main body casing and the battery casing. Further, the main body side electrode terminal is located inside the opening, and thus is less likely to be damaged by an external force.

According to the second aspect of the present invention, since the electrode terminal is covered with the electrode cover, damage to the electrode terminal on the main body side due to external force can be prevented, and dust can be prevented from adhering to the electrode terminal. Since the electrode cover moves along with the sliding of the battery casing, there is no need to increase the labor for operation.

According to the third aspect of the present invention, since one of the engaging shafts is directly engaged with the electrode cover to interlock the battery casing and the electrode cover, a separate interlocking means is not required and a simple structure is provided. In addition, when detaching, the battery casing can be moved quickly in the detaching direction by using the elastic member for the electrode cover, which improves the operability.

According to the fourth aspect of the invention, the lock lever is rotated from the engagement position to the non-engagement position with the movement of the engagement shaft in the engagement direction. Then, the lock lever returns to the engagement position and engages with the engagement shaft,
By preventing the engagement shaft from moving in the engagement release direction, the battery casing can be locked without any special locking operation, so that the operation when mounting the battery casing becomes very easy.

Further, according to the invention of claim 5, there is no concern that the battery casing may accidentally drop off when the lock of the battery casing is released by the lock lever, and the battery casing is damaged due to the accidental drop. Etc. can be prevented in advance.

Further, according to the sixth aspect of the present invention, by making the operation direction of the release knob coincide with the detaching operation direction, the detachment of the battery casing can be very easily performed by the operation with one hand. it can.

[Brief description of drawings]

FIG. 1 is a perspective view of a main body casing according to an embodiment of the present invention.

FIG. 2 is a perspective view of a battery casing in the embodiment.

FIG. 3 is an enlarged cross-sectional view of a hooking portion showing a hooking state of a hooking shaft.

FIG. 4 is an external perspective view of a mounted state of the main body casing and the battery casing.

5 is an external perspective view of FIG. 4 which is turned upside down.

FIG. 6 is an external view of a battery casing connection surface.

FIG. 7 is an inner view of the connection surface of the main body casing with the engaging shaft inserted.

8 is an external view of the connection surface of FIG.

FIG. 9 is an inner view of the connecting surface of the main body casing when the engaging shaft is locked.

10 is an external view of the connection surface of FIG.

FIG. 11 is an inner view of the connection surface of the main body casing in the unlocked state.

FIG. 12 is a side sectional view showing a state in which the battery casing is engaged with the main body casing.

FIG. 13 is an internal view of the connecting surface of the main body casing showing the locked state of the engaging shaft in another embodiment of the present invention.

FIG. 14 is an inner view of the connecting surface of the main body casing showing a state immediately after the lock of the engaging shaft is released in the embodiment.

FIG. 15 is a perspective view of a conventional main body casing.

FIG. 16 is a perspective view of a conventional battery casing.

FIG. 17 is a side sectional view showing a state in which a battery casing is attached to a conventional main body casing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body casing 11a, 11b, 11c, 11d Engagement shaft hole 12 Holder opening part 13a, 13b Main body side electrode terminal 2 Battery casing 21a, 21b, 21c, 21d Engagement shaft 22 Terminal holder 22a, 22b Battery side electrode terminal 3 Electrode cover 31 Electrode cover hole 4 Lock lever 4a Inclined part 4b Lock release claw 4c Lock part 5 Release lever 5 5b Release knob 6 Regulation member

Claims (6)

[Claims] 1. A battery casing attaching / detaching device for connecting a main body casing of an electronic device and a battery casing containing a battery, wherein a plurality of engaging shaft holes and openings are formed on a connecting surface of the main body casing, and inside the opening. On the other hand, the main body side electrode terminal is provided on the other hand, and on the other hand, on the connection surface of the battery casing, a plurality of engaging shafts which are inserted into the respective engaging shaft holes and engage with the engaging shaft holes by relative sliding of both casings, and an opening of the main body casing are provided. A locking mechanism for projecting a battery section side electrode terminal which is connected to the main body side electrode terminal in a state where the engaging shaft and the engaging shaft hole are engaged with each other, and further holds the engaging state between the engaging shaft and the engaging shaft hole. A battery casing attaching / detaching device comprising: 2. An electrode cover having an opening into which a battery-side electrode terminal is inserted is slidably provided inside the main body casing, and the electrode cover is always biased in one direction to be held at a position to cover the electrode terminal. The battery casing attaching / detaching device according to claim 1, further comprising an elastic member for sliding the electrode cover along with the battery casing. 3. The battery casing attaching / detaching device according to claim 2, wherein one of the engaging shafts is engaged with the electrode cover. 4. The lock mechanism includes a lock lever which is rotatable between a hooking position and a non-hooking position in the main body casing and is always held at the hooking position by an elastic member, the lock lever being in the hooking direction of the hooking shaft. 2. The rotation of the engagement shaft from the engagement position to the non-engagement position according to the movement to the engagement position, and the return to the engagement position causes engagement with the engagement shaft to prevent movement of the engagement shaft in the engagement release direction. The battery casing attaching / detaching device according to 2 or 3. 5. The lock mechanism includes a lock lever that is rotatable in a main body casing between a hooking position and a non-hooking position and is always held in a hooking position by an elastic member, the lock lever being in a hooking direction of a hooking shaft. The lock lever is rotated from the engagement position to the non-engagement position and is returned to the engagement position to engage with the engagement shaft to prevent the engagement shaft from moving in the engagement release direction. 4. The regulating member according to claim 3, further comprising: a regulating member that is displaced in accordance with the above, and temporarily restrains the sliding of the battery casing in the detaching direction when the lock lever is rotated from the engaging position to the non-engaging position. Battery casing attaching / detaching device. 6. A slide knob for rotating the lock lever to a non-engaged position is exposed to the outside at a position near the connection surface of the main body casing, and slides when the release knob is operated and when the battery casing is detached. The battery casing attaching / detaching device according to claim 4 or 5, wherein the directions are made to coincide with each other.