JPH0927309A - Secondary battery charger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a highly reliable and exceedingly durable secondary battery charger enabling a secondary battery, which is fittingly inserted in a recessed insertion part of a secondary battery charger case, to be pulled out of the recessed insertion part easily, safely and securely. SOLUTION: A secondary battery charger 2 is equipped with a pull-out means, including a lever 4, for pulling a secondary battery 1 out of a recessed insertion part 3, one end of the lever 4 or a point part 4c of application being positioned on the bottom surface of the recessed insertion part 3, the other end or a force point part 4b being provided projectingly outside a case for the secondary battery charger 2. A secondary battery thereby can be pulled out of the recessed insertion part easily and securely, danger is not caused because the secondary battery will not spring out of the recessed insertion part, electrodes of the secondary battery or electrode plates equipped on the secondary battery charger are neither deformed nor damaged, and therefore the highly reliable and exceedingly durable secondary battery charger can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a secondary battery charger for charging a secondary battery, and more particularly to a secondary battery charger housing fitted in a fitting recess formed on one surface of the housing. And a means for removing the secondary battery.

[0002]

2. Description of the Related Art In recent years, a nickel-cadmium battery that can be reused by recharging is used as a power source for portable electronic devices, such as camera-integrated video tape recorders, word processors and personal computers, which are brought outdoors for use. Secondary batteries such as lead batteries, lithium-ion batteries and nickel-hydrogen batteries are widely used. Further, a secondary battery charger that charges a consumed secondary battery is indispensable. FIG. 7 is a schematic perspective view showing a configuration of a general secondary battery charger, and an arrow in the fitting recess 3 formed in the upper surface 2a, which is one constituent surface of the secondary battery charger 2, has an arrow. The worn secondary battery 1 is inserted from the direction, and the electrode 1a provided on the secondary battery 1 and the fitting recess 3 are provided.
An electrode plate or an electrode pin (both not shown) provided inside is pressure-bonded, and the secondary battery 1 is in a chargeable state. Then, during charging of the secondary battery 1, the indicator 16 such as an LED is made to blink, and when charging is completed, the indicator 16 is turned off to notify the operator that the secondary battery 1 has been charged. is there. A conventional technique will be described below with reference to FIGS.

Conventional Example 1 This conventional example has a lock means for a secondary battery in a secondary battery charger, and FIG.
It is a schematic sectional drawing which shows the state fitted in. When the consumed secondary battery 1 is inserted into the fitting recessed portion 3, the secondary battery 1 contacts the inclined surface 9a of the lock claw 9, but the lock claw 9
Rotates counterclockwise around the lock claw fulcrum 9d, and the secondary battery 1 can be inserted without any trouble. Further, the secondary battery 1 is inserted against the push spring 14,
When the upper surface 2a and the exposed surface 1c of the secondary battery 1 become substantially flush with each other, the lock claw 9 rotates clockwise around the lock claw fulcrum 9d by the biasing force of the lock spring 11 in the engagement groove 1b of the secondary battery 1. The secondary battery 1 is moved and engaged, and is locked so that it cannot be pulled out from the fitting / recessing portion 3 while receiving the pushing force of the pushing spring 14. In such a state, the electrode 1a of the secondary battery 1 and the electrode plate 6 provided in the fitting insertion recess 3 are configured to be pressure-bonded to each other, and the secondary battery 1 can be charged.

Then, the operator, who knows the completion of charging of the secondary battery 1 by the indicator (not shown) indicating the completion of charging, presses the push key 12 as shown in FIG. Rotate clockwise around the arm fulcrum 13a,
Since the lock claw 9 rotates counterclockwise about the lock claw fulcrum 9d, the lock claw 9 is released from the engagement groove 1b of the secondary battery 1. Then, the secondary battery 1 is pushed up by the pushing force of the push spring 14 against the frictional force due to the pressure bonding between the electrode 1 a and the electrode plate 6, and is pulled out from the fitting recess 3. Further, the height of the exposed surface 1c of the removed secondary battery 1 is set to a position higher than the upper surface 2a so that the operator can easily take the secondary battery 1 out of the fitting recess 3 manually. It has been pushed up.

In the secondary battery charger 2 of the above-mentioned case, it is general that the frictional force due to the pressure bonding between the electrode plate 6 and the electrode 1a fluctuates due to the deformation of the electrode plate 6, the error of the mounting position and the deviation. is there. Therefore, the push-up force of the conventional push spring 14 is taken into consideration so that the secondary battery 1 can be completely removed from the fitting recess 3 even when the frictional force due to the pressure bonding between the electrode plate 6 and the electrode 1a becomes large. It's big.

In the case where the frictional force due to the pressure bonding between the electrode plate 6 and the electrode 1a becomes large, the fitting recessed portion 3 as described above.
There is no problem in removing the secondary battery 1 from the. However, in the case where the frictional force due to the pressure contact between the electrode plate 6 and the electrode 1a becomes small, when the operator presses the push key 12 and the lock claw 9 is released from the engagement groove 1b of the secondary battery 1, the force is increased. There is a possibility that the secondary battery 1 often pops out of the fitting recess 3 and injures the operator. Further, the pop-up secondary battery 1 is damaged, or the pop-up secondary battery 1 causes the secondary battery 1
There is also a risk that both the secondary battery charger 2 and the secondary battery charger 2 may be damaged.

In order to prevent the above-mentioned accidents, if the pushing force of the push spring 14 is made small, in the case where the frictional force due to the pressure bonding between the electrode plate 6 and the electrode 1a becomes large, the secondary battery 1 is Not pushed out from the fitting recess 3,
There is a possibility that it may be difficult to remove the secondary battery 1 fitted in the fitting recessed portion 3.

Conventional Example 2 In this conventional example, the insertion and removal of the secondary battery into and from the fitting recess is done manually by an operator. FIG. FIG. 4 is a schematic cross-sectional view showing a state in which is fitted into a fitting recess 3. The exhausted secondary battery 1
The operator inserts the electrode 1a of the secondary battery 1 into the fitting insertion recess 3 manually, and the electrode 1a of the secondary battery 1 is fitted and crimped onto the electrode pin 15 provided in the fitting insertion recess 3 so that charging is possible. Become. Further, as shown in the figure, the secondary battery 1 is fitted into the fitting concave portion 3 with the exposed surface 1c projecting from the upper surface 2a which is one constituent surface of the housing of the secondary battery charger 2. Then, when the charging of the secondary battery 1 is completed, the operator manually removes the secondary battery 1 from the fitting recess 3.

However, in the secondary battery charger 2 of the above-mentioned case, the electrode pin 15 provided in the fitting recess 3 and the electrode 1a of the secondary battery 1 may occlude.
In such a case, the operator uses a means for withdrawing the rechargeable battery 1 from the fitting insertion recess 3 while rocking the rechargeable battery 1, and when the withdrawal is repeated while rocking, either the electrode pin 15 or the electrode 1a is used. On the other hand, there is a possibility that the electrode pin 15 and the electrode 1a may not be pressure-bonded due to deformation of either or both of them, making charging impossible.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to mount a secondary battery fitted in a fitting recess formed on one surface of a secondary battery charger housing, to the secondary battery and the secondary battery. Easy and safe from the fitting recess without damaging any of the chargers, and
An object of the present invention is to provide a secondary battery charger which can be reliably removed and which is highly reliable and has excellent durability.

[0011]

[Means for Solving the Problems]

In order to solve the above-mentioned problems, in the first invention of the present application (claim 1), the secondary battery charger is provided with a removing means for removing the secondary battery from the fitting recess by an external force. Is.

Further, in the second invention (claim 4) of the present application, the secondary battery charger is provided with an ejecting means for ejecting the secondary battery from the fitting / recessing portion by an external force and a secondary member in the fitting / recessing portion. Locking means for locking the battery is provided.

In any of the inventions, as a preferred embodiment thereof, the secondary battery charger is provided with a withdrawing means including a lever, and one end of the lever is arranged on the bottom surface of the fitting recess and the other end is arranged. By projecting the secondary battery outside the charger housing, and applying an external force such as a manual force of the operator to the portion of the lever projecting outside the secondary battery charger housing It is something to pull out. Alternatively, the other end is connected to a solenoid plunger provided in the secondary battery charger housing, and the secondary battery is pulled out from the fitting recess by the operating force of the solenoid plunger.

In another preferred embodiment, the secondary battery charger is provided with a withdrawal means including a lever,
One end of the lever is placed on the bottom surface of the fitting recess, the other end is projected outside the battery charger housing, and the secondary battery is attached to the extreme end of the extended part extending the middle part of the lever. The lock means is configured to lock in the fitting recess. Then, an external force such as a manual force of an operator is applied to a portion of the lever projecting from the housing of the secondary battery charger to remove the secondary battery from the fitting recess.

[0016] In still another preferred embodiment, the secondary battery charger comprises a withdrawal means including a lever, wherein one end of the lever is disposed on the bottom surface of the fitting recess and the secondary battery is provided at the other end. The lock means is configured to lock the inside of the fitting recess. Then, the solenoid plunger provided in the housing of the secondary battery charger is connected to the middle portion of the lever, and the secondary battery is removed from the fitting recess by the operating force of the solenoid plunger.

[0017]

In the present invention, the operator does not need a large force to remove the secondary battery fitted in the fitting recess. Also, since the secondary battery does not pop out from the fitting recess,
It is safe and does not hurt the operator.

Since the secondary battery does not jump out from the fitting recess, neither the secondary battery nor the secondary battery charger is likely to be damaged.

The secondary battery is reliably and reliably removed from the fitting / recessing portion, and the electrode of the secondary battery and the electrode plate provided in the fitting / recessing portion are not deformed or damaged.

[0020]

Embodiments of the present invention will be described below with reference to FIGS. It should be noted that the constituent elements in the drawing that have the same structure as that of the conventional technique are denoted by the same reference numerals.

Embodiment 1 In this embodiment, the secondary battery charger does not have a locking means for the secondary battery, and the lever is provided as a removing means for removing the secondary battery from the fitting recess. It is configured to include. This will be described with reference to FIGS.

FIG. 1 is a schematic sectional view showing a state in which the secondary battery 1 is fitted and inserted in the fitting / recessing recess 3. A lever 4 is arranged near the bottom surface of the fitting / recessing portion 3, and an action point portion 4c, which is one end of the lever 4, is located below the bottom surface of the fitting / recessing portion 3 and is arranged with a slight gap from the bottom surface of the secondary battery 1. ing. In addition, the power point portion 4b, which is the other end, penetrates a notch hole 7 provided in the housing of the secondary battery charger 2 and projects outside the housing of the secondary battery charger 2. A lever fulcrum 4a and a lever stopper 4d are provided between the action point portion 4c and the force point portion 4b. The lever 4 rotates about the lever fulcrum 4a,
Further, one end of the return spring 5 is hooked on the housing of the secondary battery charger 2 and the other end is hooked in the vicinity of the action point portion 4c. It abuts the inner wall surface 2b to hold the lever 4 at a predetermined position.

1 and 2, the procedure for inserting the exhausted secondary battery 1 into the insertion recess 3 and the procedure for removing the charged secondary battery 1 from the insertion recess 3 will be described with reference to FIGS. Explain. When the operator manually inserts the secondary battery 1 into the fitting / recessing portion 3, the electrode 1a is inserted into the fitting / recessing portion 3 and the electrode plate 6
Abut. When the secondary battery 1 is further inserted, the upper surface 2a, which is one component surface of the housing of the secondary battery charger 2, and the exposed surface 1c of the secondary battery 1 become substantially flush with each other, and the electrode 1a and the electrode The plate 6 and the secondary battery 1 are pressure-bonded to each other, and the secondary battery 1 is in a chargeable state.

FIG. 2 is a schematic sectional view showing a state in which the secondary battery 1 which has been charged is removed from the fitting recess 3.
When the operator presses the power point portion 4b from the direction of the arrow shown in the figure, the lever 4 rotates clockwise around the lever fulcrum 4a, and the secondary battery 1 is fitted into the fitting recess 3 by the action point portion 4c.
The electrode 1a is easily and surely pushed up from the inside, and the electrode 1a is released from the pressing force of the electrode plate 6 and pulled out from the fitting recessed portion 3. In addition, in the removed secondary battery 1, the exposed surface 1c of the secondary battery 1 is pushed up to a height higher than the upper surface 2a so that the operator can easily take the secondary battery 1 out of the fitting recess 3. It has become.

With such a structure, when the secondary battery 1 fitted in the fitting recess 3 is to be removed, the operator applies the force 4
By pressing b, the secondary battery 1 can be easily and surely pulled out from the fitting recess 3. Further, since the secondary battery 1 does not pop out from the fitting recessed portion 3, neither the operator is injured nor the secondary battery 1 and the secondary battery charger 2 are damaged. Further, even in the secondary battery charger having the structure in which the electrode pin is provided in the fitting / recessing portion described in the second conventional example, the secondary battery can be removed from the fitting / recessing portion 3 without rocking. Since the electrode 1a, the electrode plate 6 or the electrode pin of the secondary battery 1 is not deformed or damaged, it is possible to provide the secondary battery charger 2 having high reliability and excellent durability.

Embodiment 2 In this embodiment, the secondary battery charger does not have a locking means for the secondary battery. Then, the withdrawing means for withdrawing the secondary battery from the fitting / recessing portion is configured to include a lever, and the external force applied to the lever is the operating force of the solenoid plunger for driving the lever. This will be described with reference to FIG.

The action point portion 4c which is one end of the lever 4
The description of the arrangement, the configuration of the return spring 5 and the lever stopper 4d, and the procedure for inserting the exhausted secondary battery 1 into the insertion recess 3 are the same as those in the case of the first embodiment, and will be omitted.

FIG. 3 is a schematic sectional view showing a state in which the secondary battery 1 is fitted and inserted in the fitting / recessing portion 3. As shown in the figure,
A hole 4e is provided in the power point portion 4b which is the other end of the lever 4. The hole 4e and the iron core 8a of the solenoid plunger 8 fixed in the housing of the secondary battery charger 2 are connected together by a pin 8b that is inserted therethrough. Hereinafter, a procedure for removing the fully charged secondary battery 1 from the fitting recess 3 will be described.

When an operator operates a switch key (not shown) provided on the secondary battery charger 2, a current flows through the solenoid plunger 8 and the iron core 8a moves in the direction shown by the arrow in FIG. It is sucked into a solenoid plunger 8. Therefore, the lever 4 rotates clockwise around the lever fulcrum 4a. The description of the procedure below is given in Example 1.
2 is the same as the case of referring to FIG.

With such a structure, if the operator operates the switch key provided on the secondary battery charger 2, the secondary battery 1 can be easily and surely removed from the fitting recess 3. be able to. Further, since the secondary battery 1 does not jump out from the fitting / recessing recess 3, the operator may be injured or the secondary battery 1 may be damaged.
Neither the secondary battery charger 2 nor the secondary battery charger 2 is damaged. Further, even in the secondary battery charger having the structure in which the electrode pin is provided in the fitting / recessing portion described in the second conventional example, the secondary battery can be removed from the fitting / recessing portion 3 without rocking. Since the electrode 1a, the electrode plate 6 or the electrode pin of the secondary battery 1 is not deformed or damaged, it is possible to provide the secondary battery charger 2 having high reliability and excellent durability.

Embodiment 3 In this embodiment, the withdrawing means for withdrawing the secondary battery from the fitting recess includes a lever, and extends between the lever fulcrum of the lever and the force point portion. An extending portion is provided, and a locking means configured to include a directly moving locking claw for a secondary battery is provided at an end portion of the extending portion. This will be described with reference to FIG.

The action point portion 4c which is one end of the lever 4
The arrangement of No. 2, the arrangement of the force point portion 4b which is the other end, and the configurations of the return spring 5 and the lever stopper 4d are the same as those described in the case of the first embodiment, and will be omitted.

FIG. 4 is a schematic sectional view showing a state in which the secondary battery 1 is fitted and inserted in the fitting / recessing portion 3. The locking means for the secondary battery 1 is configured at the end of the extending portion 4f extending between the lever fulcrum 4a of the lever 4 and the force applying portion 4b, and is provided on the slide portion 9b provided on the lock claw 9. Is the lock spring 11
Is inserted, and is inserted so as to move smoothly without any extra gap with the slide hole 4g provided in the extending portion 4f,
Further, a retaining ring 10 is fitted to the end so that the lock claw 9 does not come off from the extending portion 4f. And the inclined portion 9
a projects into the fitting recess 3 so that the projected extreme end of the inclined portion 9a and the center of the lever fulcrum 4a substantially coincide with each other in the extension direction of the inserting direction of the secondary battery 1 into the fitting recess 3. It is configured. Further, the rotation preventing portion 9c provided on the lock claw 9
Is inserted in a rotation prevention hole 4h provided in the extending portion 4f so as not to prevent the slide portion 9b from smoothly moving in the slide hole 4g, and holds the lock claw 9 at a predetermined position and does not rotate. I am trying.

The procedure for inserting the exhausted secondary battery 1 into the fitting recess 3 and the procedure for removing the charged secondary battery 1 from the fitting recess 3 will be described with reference to FIG. . When the operator manually inserts the secondary battery 1 into the fitting recessed portion 3, the operator comes into contact with the inclined portion 9a of the lock claw 9, and when the secondary battery 1 is further inserted, the lock spring 11 is compressed and locked. The claw 9 will move linearly in the direction indicated by the arrow in the figure. Then, the secondary battery 1 can be inserted into the fitting recess 3 without any trouble, and when the secondary battery 1 is further inserted, the upper surface 2a and the exposed surface 1c of the secondary battery 1 become substantially the same surface, and the electrode 1a and the electrode plate 6 are pressure-bonded, and the secondary battery 1 is in a chargeable state. The lock claw 9 is fitted with the secondary battery 1 and is inserted into the concave portion 3
Then, the secondary battery 1 is locked in the fitting recess 3 by being engaged with the engaging groove 1b by the urging force of the lock spring 11.

The procedure for removing the fully charged secondary battery 1 from the fitting / recessing recess 3 is the same as in the case of the first embodiment, when the operator presses the force application point 4b, the lever 4 is moved to the lever fulcrum 4a. When the secondary battery 1 is rotated clockwise around the point of action, the secondary battery 1 is easily and completely pushed up from the inside of the fitting recess 3 by the action point portion 4c, and the electrode 1a is released from the pressing force of the electrode plate 6 and fitted. It is removed from the recess 3. Further, the lock claw 9 that interlocks with the lever 4 rotates clockwise around the lever fulcrum 4a and, at the same time, disengages from the engagement groove 1b. Then, in the secondary battery 1, the electrode 1 a is released from the pressure-bonding force of the electrode plate 6 provided in the fitting / recessing portion 3 and is removed from the fitting / recessing portion 3.
The removed secondary battery 1 is pushed up from the upper surface 2a to a sufficient height so that the operator can easily take the secondary battery 1 out of the fitting recess 3.

With such a structure, when the secondary battery 1 fitted in the fitting concave portion 3 is removed, the operator applies the force applied to the secondary battery 1.
By pressing b, the secondary battery 1 can be easily and surely pulled out from the fitting recess 3. Further, since the secondary battery 1 does not pop out from the fitting recessed portion 3, neither the operator is injured nor the secondary battery 1 and the secondary battery charger 2 are damaged. Further, even in the secondary battery charger having the structure in which the electrode pin is provided in the fitting / recessing portion described in the second conventional example, the secondary battery can be removed from the fitting / recessing portion 3 without rocking. Since the electrode 1a, the electrode plate 6 or the electrode pin of the secondary battery 1 is not deformed or damaged, it is possible to provide the secondary battery charger 2 having high reliability and excellent durability. Furthermore, the secondary battery 1 fitted in the fitting recess 3 is automatically locked in the fitting recess 3 and is not removed from the fitting recess 3 unless the force point portion 4b is pressed.

Embodiment 4 In this embodiment, the withdrawing means for withdrawing the secondary battery from the fitting recess includes a lever, and extends between the lever fulcrum of the lever and the force point portion. An extending portion is provided, and locking means having a structure including a rotating locking claw for a secondary battery is provided at an end portion of the extending portion. This will be described with reference to FIG.

The action point portion 4c which is one end of the lever 4
The arrangement of No. 2, the arrangement of the force point portion 4b which is the other end, and the configurations of the return spring 5 and the lever stopper 4d are the same as those described in the case of the first embodiment, and will be omitted.

FIG. 5 is a schematic sectional view showing a state in which the secondary battery 1 is fitted and inserted in the fitting recess 3. The lock means for the secondary battery 1 is configured at the end of the extending portion 4f extending between the lever fulcrum 4a of the lever 4 and the force applying portion 4b, and the inclined portion 9a that is one end of the lock claw 9 is It is configured so that it projects into the fitting recess 3 and the projected extreme end of the inclined portion 9a and the center of the lever fulcrum 4a substantially coincide with each other in the extension direction of the inserting direction of the secondary battery 1 into the fitting recess 3. There is. Also, the lock claw 9
The other end is locked by the lock spring 11 with the extending portion 4f,
Further, a lock claw fulcrum 9d is provided between the inclined portion 9a of the lock claw 9 and one end where the lock spring 11 is locked, and the lock claw 9 is configured to rotate. The extending portion 4f is provided with a lock claw stopper 4i that holds the lock claw 9 at a predetermined position.

The procedure for inserting the exhausted secondary battery 1 into the insertion recess 3 and the procedure for removing the charged secondary battery 1 from the insertion recess 3 will be described with reference to FIG. . When the operator manually inserts the secondary battery 1 into the fitting recessed portion 3, the operator comes into contact with the inclined portion 9a of the lock claw 9. When the secondary battery 1 is further inserted, the lock claw 9 rotates while extending the lock spring 11 in the counterclockwise direction about the lock claw fulcrum 9d as shown by the arrow in the figure. Therefore, the secondary battery 1 can be further inserted into the fitting recess 3 without any trouble, and when the secondary battery 1 is further inserted, the upper surface 2
a and the exposed surface 1c of the secondary battery 1 become substantially the same surface, and the electrode 1a and the electrode plate 6 are pressure-bonded to each other, so that the secondary battery 1 can be charged. When the secondary battery 1 is fitted and inserted in the fitting / inserting recessed portion 3, the lock claw 9 engages with the engaging groove 1 b by the urging force of the lock spring 11 to lock the secondary battery 1 in the fitting / inserting recessed portion 3.

The procedure for withdrawing the secondary battery 1 that has been charged from the fitting concave portion 3 is the same as that of the case of the third embodiment, and the description thereof is omitted.

With this structure, when the secondary battery 1 fitted in the fitting recess 3 is removed, the operator applies the force 4
By pressing b, the secondary battery 1 can be easily and surely pulled out from the fitting recess 3. Further, since the secondary battery 1 does not pop out from the fitting recessed portion 3, neither the operator is injured nor the secondary battery 1 and the secondary battery charger 2 are damaged. Further, even in the secondary battery charger having the structure in which the electrode pin is provided in the fitting / recessing portion described in the second conventional example, the secondary battery can be removed from the fitting / recessing portion 3 without rocking. Since the electrode 1a, the electrode plate 6 or the electrode pin of the secondary battery 1 is not deformed or damaged, it is possible to provide the secondary battery charger 2 having high reliability and excellent durability. Furthermore, the secondary battery 1 fitted in the fitting recess 3 is automatically locked in the fitting recess 3 and is not removed from the fitting recess 3 unless the force point portion 4b is pressed.

Embodiment 5 In this embodiment, the withdrawal means for withdrawing the secondary battery from the fitting recess includes a lever, and one end of the lever is the lock of the case shown in the fourth embodiment. Means is provided, and a solenoid plunger for driving the lever of the case shown in the second embodiment is provided between the lever fulcrum 4a and the locking means. This will be described with reference to FIG.

FIG. 6 is a schematic sectional view showing a state in which the secondary battery 1 is fitted and inserted in the fitting / recessing portion 3. In this embodiment, the arrangement of the action point portion 4c which is one end of the lever 4 and the configurations of the return spring 5 and the lever stopper 4d are the same as those in the case of the first embodiment, and the secondary battery 1 is fitted. The description of the procedure for inserting and inserting the secondary battery 1 into the insertion recess 3 and the procedure for locking the secondary battery 1 in the insertion recess 3 is the same as that of the case of the fourth embodiment, and will be omitted. The description of the procedure for withdrawing the fully charged secondary battery 1 from the fitting / recessing recess 3 is also the same as that of the case of the second embodiment, and is therefore omitted.

In the present embodiment, it goes without saying that the locking means for the secondary battery 1 may be constituted by the locking claw 9 which moves directly in the case shown in the third embodiment.

With this structure, the operator can easily operate the secondary battery 1 from the fitting recess 3 by operating the switch key (not shown) provided on the secondary battery charger 2. Can be reliably removed. Further, since the secondary battery 1 does not pop out from the fitting recessed portion 3, neither the operator is injured nor the secondary battery 1 and the secondary battery charger 2 are damaged. Further, even in the secondary battery charger having the structure in which the electrode pin is provided in the fitting / recessing portion described in the second conventional example, the secondary battery can be removed from the fitting / recessing portion 3 without rocking. Since the electrode 1a, the electrode plate 6 or the electrode pin of the secondary battery 1 is not deformed or damaged, it is possible to provide the secondary battery charger 2 having high reliability and excellent durability. Further, the secondary battery 1 fitted in the fitting recess 3 is automatically locked in the fitting recess 3 and unless the switch key (not shown) for energizing the solenoid plunger 8 is operated. It is never pulled out of 3.

[0047]

As described above in detail, according to the present invention, the operator is one end of the lever which is the pulling-out means for pulling out the secondary battery from the fitting concave portion, and the outside of the secondary battery charger housing. The secondary battery can be easily and surely removed from the fitting recess by pressing the force point portion protruding from the power switch or operating the switch key provided on the secondary battery charger housing. it can.

Since the secondary battery does not jump out from the fitting recess, a safe secondary battery charger is provided which does not damage the operator or damage the secondary battery or the secondary battery charger. can do.

The secondary battery is removed from the fitting / recessing portion without rocking the secondary battery, and the electrodes of the secondary battery and the electrode plate provided in the fitting / recessing portion are not deformed or damaged. Therefore, it is possible to provide a secondary battery charger which has a long-lasting charging function, high reliability, and excellent durability.

The secondary battery fitted in the fitting recess is automatically locked in the fitting recess and presses the force point portion which is one end of the lever projecting outside the battery charger housing, or The secondary battery charger will not be removed from the fitting / recessing recess unless the switch key for energizing the solenoid plunger provided in the housing is operated. Therefore, a highly safe secondary battery charger can be provided.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing the first embodiment of the present invention and showing a state in which a secondary battery is fitted and inserted in a fitting recess.

FIG. 2 is a schematic cross-sectional view showing the first embodiment of the present invention and showing a state in which the fully charged secondary battery is pulled out from the fitting recess.

FIG. 3 is a schematic cross-sectional view showing the second embodiment of the present invention and showing a state in which the secondary battery is fitted and inserted in the fitting recess.

FIG. 4 is a schematic cross-sectional view showing a third embodiment of the present invention and showing a state in which the secondary battery is fitted and inserted in the fitting recess.

FIG. 5 is a schematic cross-sectional view showing the fourth embodiment of the present invention and showing a state in which the secondary battery is fitted and inserted in the fitting recess.

FIG. 6 is a schematic cross-sectional view showing a fifth embodiment of the present invention and showing a state in which a secondary battery is fitted and inserted in a fitting recess.

FIG. 7 is a schematic perspective view showing a configuration of a general secondary battery charger showing a conventional example.

FIG. 8 is a schematic cross-sectional view showing Conventional Example 1 and showing a state in which a secondary battery is fitted and inserted in a fitting / recessing portion.

FIG. 9 is a schematic cross-sectional view showing Conventional Example 1 and showing a state in which a secondary battery, which has been charged, is removed from the fitting recess.

FIG. 10 is a schematic cross-sectional view showing Conventional Example 2 and showing a state in which the secondary battery is fitted into the fitting recess.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Secondary battery 1a Electrode 1b Engagement groove 1c Exposed surface 2 Secondary battery charger 2a Upper surface 2b Inner wall surface 3 Fitting concave portion 4 Lever 4a Lever fulcrum 4b Force point portion 4c Action point portion 4d Lever stopper 4e Hole 4f Extension portion 4g Slide hole 4h Anti-rotation hole 4i Lock claw stopper 5 Return spring 6 Electrode plate 7 Notch hole 8 Solenoid plunger 8a Iron core 8b Pin 9 Lock claw 9a Inclined part 9b Sliding part 9c Anti-rotation part 9d Lock claw fulcrum 10 Snap ring 11 Lock spring 12 Push key 13 Arm 13a Arm fulcrum 14 Push spring 15 Electrode pin 16 Indicator

Claims (6)

[Claims] 1. A fitting insertion recess formed on one surface of a secondary battery charger housing, and an exposed surface of the secondary battery fitted into the fitting insertion recess are substantially the same as the one surface. In the secondary battery charger which is charged in a state where the electrode of the secondary battery and the electrode plate provided in the fitting insertion recess are pressure-bonded, the secondary battery is externally applied from the fitting insertion recess. A secondary battery charger, characterized in that the secondary battery charger is provided with a removing means for removing the secondary battery. 2. The withdrawal means is configured to include a lever, one end of the lever is disposed on the bottom surface of the fitting recess, and the other end is projected outside the rechargeable battery charger housing. At the same time, the secondary battery charger according to claim 1, wherein the external force is applied to the protruding portion. 3. The solenoid, wherein the extracting means includes a lever, one end of the lever is disposed on the bottom surface of the fitting recess, and the other end is provided inside the casing of the secondary battery charger. The rechargeable battery charger according to claim 1, wherein the external force is an actuating force of the solenoid plunger connected to the lever while being connected to the plunger. 4. A fitting insertion recess formed on one surface of a secondary battery charger housing, and an exposed surface of the secondary battery fitted into the fitting insertion recess are substantially flush with the one surface. And is charged in a state where the electrode of the secondary battery and the electrode plate provided in the fitting insertion recess are pressure-bonded, and the secondary battery is at least one surface facing the inner surface of the fitting recess. A locking means for engaging the engaging groove with the secondary battery, and a removing means for removing the secondary battery from the fitting insertion recess by an external force. In the rechargeable battery charger, the extracting means includes a lever,
One end of the lever is arranged on the bottom surface of the fitting recess, and the other end is protruded to the outside of the rechargeable battery charger housing, and the locking means is provided at the end of the extending part extending from the intermediate part of the lever. A lock claw and a lock spring, wherein the lock claw is biased and engaged with the engagement groove by the lock spring, and the external battery is added to the projecting portion and the secondary battery is inserted and inserted. It is characterized in that the lock claw is released from the engagement groove while being removed from the recess.
Secondary battery charger. 5. The withdrawal means is configured to include a lever, one end of the lever is disposed on the bottom surface of the fitting recess, the other end is provided with the locking means, and an intermediate portion of the lever is provided. The secondary plunger according to claim 4, wherein a solenoid plunger provided in a secondary battery charger housing is connected to the portion, and the external force is an operating force of the solenoid plunger connected to the lever. Battery charger. 6. The extreme end of the lock claw projecting into the fitting insertion recess is substantially extended in the same direction as the fulcrum center of the lever and the direction in which the secondary battery is inserted into the secondary battery charger. The secondary battery charger according to claim 4 or 5, wherein the secondary battery charger is provided as follows.