JP3666519B2 - Contact switching device for battery compartment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a contact switching device for a battery storage unit, and more particularly to a contact switching device for a battery storage unit capable of selectively storing two types of batteries.
[0002]
[Prior art]
For example, as a power source for a portable tape recorder, a secondary battery made of a nickel cadmium battery or the like has been conventionally used. Since such a secondary battery can be charged with a commercial power source by a charger, it can be used repeatedly. Further, since it can be used repeatedly many times, there is little problem of disposal of used batteries.
[0003]
[Problems to be solved by the invention]
Thus, when a portable electronic device is driven by a secondary battery such as a nickel cadmium battery, the secondary battery must be charged when it is discharged, and the electronic device can be used during that time. Can not. That is, it is not possible to buy and use a new battery sold at a store like a primary battery made of a dry battery.
[0004]
In view of this, there has been proposed a portable electronic device that can use a secondary battery such as a nickel cadmium battery and can also use a dry battery. However, since nickel cadmium batteries and dry batteries have different shapes and dimensions on the outside, when two types of batteries are used in this way, a battery storage section for storing each battery separately is provided. Must be provided. Therefore, it is necessary to provide a battery storage section for storing these two types of batteries in the cabinet, which deteriorates the space factor and prevents downsizing of the electronic device.
[0005]
There is an electric product that has a battery storage part for storing two types of batteries at the same location. In this case, the position of the partition wall such as a partition plate is manually changed to change the size of the battery box. I have to. Therefore, when inserting different types of batteries, the partition plate as described above must be moved, which not only makes the operation cumbersome, but also switches several types of batteries without knowing this operation. I can't do that.
[0006]
The present invention has been made in view of such a problem, and a contact switching device for a battery storage unit that can be used selectively by storing two types of batteries by a common battery storage unit. Is intended to provide.
[0007]
[Means for Solving the Problems]
According to the present invention, a second terminal plate is provided at one end of a battery storage portion capable of selectively storing two types of batteries so as to be movable together with the first terminal plate. battery provided abutting portion abuts and a second terminal plate, thereby as the second terminal plate is moved to a position that does not inhibit the attachment of the first battery, the inside of the lid of the battery compartment A terminal plate having a polarity opposite to that of the first terminal plate and the second terminal plate is provided, and this terminal plate is commonly used for two types of batteries stored in the battery storage portion . Is.
[0008]
The abutting portion may be formed of a deep drawing protrusion provided on the second terminal plate.
[0010]
One of the two types of batteries selectively stored in the battery storage unit may be a square secondary battery, and the other may be a cylindrical primary battery.
[0011]
A coil spring that contacts the negative electrode of the columnar primary battery may be attached to the second terminal plate that is movably provided at one end of the battery housing.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a wireless remote controller of a portable tape recorder having a contact switching device for a battery storage unit according to an embodiment of the present invention. The remote controller includes a chassis 10 made of a synthetic resin molding. I have. A front cabinet 11 is joined to one side surface of the chassis 10, and a rear cabinet 12 is joined to the other side surface. The chassis 10, the front cabinet 11, and the rear cabinet 12 allow remote control. The controller cabinet can be assembled. The rear cabinet 12 has a built-in reel for winding the earphone cord.
[0013]
A printed circuit board holding part 13 is provided on the chassis 10, and a blunt board 14 having an irregular fan shape is accommodated in the printed circuit board holding part 13. Various electronic components 15, ICs 16, volume knobs 17, etc. are mounted on the printed circuit board 14, and these are connected to each other by a wiring pattern to form a predetermined circuit. It is configured.
[0014]
A battery housing portion 18 is provided on the opposite side of the printed circuit board holding portion 13 of the chassis 10. The battery housing portion 18 includes a step portion 19 for receiving a side surface of a square secondary battery and an arc-shaped holding portion 20 for receiving a side surface of a cylindrical primary battery. Can be stored selectively. Further, an opening at one end of the battery housing portion 18 is closed by a battery lid 21.
[0015]
Next, the configuration of the first terminal plate 25 and the second terminal plate 34 provided at one end on the back side of the battery housing portion 18 will be described. As shown in FIGS. 2 to 4, the first terminal board 25 is fixedly arranged in the back part of the battery housing part 18, and the connection part 26 provided at one end thereof is the printed circuit board 14. The connecting portion 26 is connected to the wiring pattern on the printed board 14 by soldering. And the lower end side of the terminal board 25 is comprised from the bending piece 27, and the protrusion 28 currently formed in the front-end | tip part of this bending piece 27 comprises a terminal.
[0016]
On the other hand, a connecting plate 31 is fixed to the side end side of the printed circuit board 14, and a lower end side of the connecting plate 31 includes a holding cylinder 32 constituting a hinge, and is inserted into the holding cylinder 32. The end of the second terminal plate 34 is rotatably supported by the hinge pin 33.
[0017]
The second terminal plate 34 is provided with a deep-drawn projection 35 so as to protrude upward, and an end plate 36 is provided on a side closer to the tip than the projection 35, and a terminal is formed on the end plate 36. The coil spring 37 is fixed. A pressing spring 38 made of a coil spring is disposed on the lower surface of the second terminal plate 34. As shown in FIG. 1, the pressing spring 38 is fixed at a predetermined position inside the front cabinet 11.
[0018]
Next, the structure of the terminal plate on the opposite side will be described. As shown in FIG. 1, a pin 41 is implanted so as to stand upright on the opposite end of the printed circuit board 14, and the pin 41 is connected to the positive side. The terminal plate 42 is rotatably supported. The brass side terminal plate 42 is configured such that the upper and lower edges thereof are sandwiched and held by holding ribs 43 and 44 provided inside the battery lid 21. Therefore, the pin 41 constitutes the hinge of the battery lid 21.
[0019]
Next, the operation of storing the battery in the battery storage unit configured as described above will be described. Here, a rectangular secondary battery 47 made of a nickel cadmium battery and a cylindrical primary battery 48 are selectively used.
[0020]
The gum type secondary battery 47 is housed and held in the battery housing portion 18 as shown in FIGS.
[0021]
When the gum-type secondary battery 47 is stored in the battery storage unit 18, the battery lid 21 covering the opening at one end of the battery storage unit 18 is opened together with the plus side terminal plate 42. Then, the gum type secondary battery 47 is inserted so that the side surface is in contact with the step portion 19 of the battery housing portion 18. Then, as shown in FIGS. 4 to 6, the negative electrode of the secondary battery 47 contacts the deeply drawn protrusion 35 of the second terminal plate 34 provided in the inner part of the battery housing 18. As a result, the terminal plate 34 is rotated counterclockwise about the hinge pin 33 as shown in FIGS. 3 and 4 against the pressing spring 38. That is, when the gum-type secondary battery 47 is inserted, the protrusion 35 of the second terminal board 34 is pushed by the portion on the tip side thereof and moves downward so as not to obstruct the mounting of the secondary battery 47. .
[0022]
Therefore, when the gum-type secondary battery 47 is further pushed into the battery housing portion 18, the first terminal plate 25 in which the negative electrode on the tip side is provided at the back of the battery housing portion 18. It comes into contact with the projection 28 of the bent piece 27. When the battery lid 21 is closed in such a state, the plus-side terminal plate 42 held by the ribs 43 and 44 inside the battery lid 21 is replaced with the plus-side electrode of the gum-type secondary battery 47 and FIGS. As shown in FIG. Therefore, the output of the gum type secondary battery 47 can be taken out through the positive terminal plate 42 and the negative first terminal plate 25.
[0023]
Next, in the case of using a primary battery, for example, a AAA dry battery having a cylindrical shape, a cylindrical primary battery 48 is inserted into the battery accommodating portion 18 as shown in FIGS. The primary battery 48 has a radial dimension smaller than that of the gum-type secondary battery 47 in the same direction, and is formed by a notch 50 in the first terminal plate 25 provided in the inner part of the battery housing portion 18. While being guided, the battery is stored in the battery storage unit 18 and is held by the arc-shaped holding unit 20.
[0024]
That is, in this case, the columnar primary battery 48 is inserted while the first terminal plate 25 remains in the position rotated upward by the pressing spring 38 as shown in FIG. The negative electrode of the primary battery 48 comes into contact with the coil spring 37 while deforming the coil spring 37 provided on the end plate 36 of the second terminal plate 34.
[0025]
Accordingly, when the battery lid 21 is closed in such a state, the positive side electrode of the primary battery 48 comes into contact with the positive side terminal plate 42. Therefore, the output of the cylindrical primary battery 48 can be taken out by the plus side terminal plate 42 and the coil spring 37 of the second terminal plate 34.
[0026]
Thus, according to the present embodiment, when the cylindrical primary battery 48 is inserted as shown in FIGS. 7 and 8, the coil of the negative terminal plate 34 dedicated to the cylindrical primary battery 48 is used. The spring 37 contacts the negative electrode of the primary battery 48. At this time, the terminal board 34 is pressed upward from below by a pressing spring 38. Further, since the primary battery 48 does not contact the deeply drawn protrusion 35 of the terminal plate 34, the terminal plate 34 does not rotate.
[0027]
On the other hand, as shown in FIG. 4, when a gum type secondary battery 47 made of a nickel cadmium battery is inserted, the tip of the secondary battery 47 is inserted into the taper portion of the deep drawing protrusion 35 of the second terminal plate 34. As a result, the terminal plate 34 rotates downward as shown in FIG. 4, and interference between the terminal plate 34 and the secondary battery 47 is avoided. Therefore, the negative electrode of the secondary battery 47 comes into contact with the terminal 28 formed on the bent piece 27 of the first terminal plate 25 and becomes conductive. When the gum type secondary battery 47 is removed, the second terminal plate 34 is restored from the state shown in FIG. 3 to the state shown in FIG. 2 by the elastic restoring force of the pressing spring 38.
[0028]
That is, this embodiment utilizes the difference between two types of batteries 47 and 48 having different sizes and lengths, and automatically switches the negative terminal when these batteries 47 and 48 are inserted. They are not manually switched or use special parts.
[0029]
When the gum-type secondary battery 47 is inserted, the rotary-type second terminal plate 34 dedicated to the cylindrical primary battery 48 is caused to escape by the deep-drawn taper portion 35, thereby the gum-type secondary battery 47. Does not come into contact with the second terminal plate 34 on the negative side dedicated to the cylindrical primary battery 48, but contacts the protrusion 28 of the bent piece 27 of the first terminal plate 25 dedicated to the gum type secondary battery. In this way, conduction is achieved.
[0030]
According to such a configuration, when the gum-type secondary battery 47 or the columnar primary battery 48 is inserted into the battery housing portion 18, the negative terminal is automatically used by utilizing the difference in the shape of the batteries. Since the plates 25 and 34 are switched, the operability is good. In addition, although a little ingenuity is given to the shape of the battery housing portion 18, most of the space of the battery housing portion 18 is commonly used for the gum-type secondary battery 47 and the cylindrical primary battery 48, This is far more space efficient than providing a battery compartment, which prevents an increase in cabinet size. In addition, it is possible to minimize the increase in cost compared to the case where dedicated battery storage portions are provided separately for the two types of batteries.
[0031]
【The invention's effect】
As described above, according to the present invention, the second terminal plate is provided so as to be movable together with the first terminal plate at one end of the battery storage unit capable of selectively storing two types of batteries. The first battery comes into contact with the contact portion provided on the second terminal plate, so that the second terminal plate moves to a position that does not hinder the mounting of the first battery , A terminal plate having a polarity opposite to the first terminal plate and the second terminal plate is provided on the inner side of the lid of the battery housing portion, and is used in common for two types of batteries .
[0032]
Therefore, it is possible to automatically switch between the first terminal board and the second terminal board by storing the battery, and the operability is excellent, and two types of batteries are selectively used by using a common battery storage section. It can be stored, and space efficiency is improved. In addition, a terminal plate having a polarity opposite to the first terminal plate and the second terminal plate is provided on the inner side of the lid of the battery housing part, and the polarity on the opposite side is obtained by using the two types of batteries in common. It is possible to configure the terminal plate from a single terminal plate.
[0033]
If the abutting portion is constituted by a deep drawing projection provided on the second terminal plate, the second battery is brought into contact with the first battery by the first battery coming into contact with the deep drawing projection. It is possible to move to a position that does not impede mounting.
[0035]
One of the two types of batteries is composed of a square-shaped secondary battery, and the other is composed of a cylindrical primary battery. It is possible to store and take out the output.
[0036]
According to the configuration in which the coil spring that contacts the negative electrode of the cylindrical primary battery is attached to the second terminal plate, when the cylindrical primary battery is used, the cylindrical shape is passed through the coil spring. The output of the primary battery is taken out.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a wireless remote controller having a contact switching device for a battery storage unit according to an embodiment.
FIG. 2 is a perspective view of a main part showing a structure of a minus side terminal plate provided in the battery housing part;
FIG. 3 is a perspective view of a state where a second terminal plate is rotated.
FIG. 4 is a front view of a state in which a gum type secondary battery is inserted.
FIG. 5 is a side view of the same.
FIG. 6 is a plan view of the same.
FIG. 7 is a perspective view of a main part in a state where a cylindrical primary battery is inserted.
FIG. 8 is a front view of the relevant part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Chassis 11 Front cabinet 12 Rear cabinet 13 Printed circuit board holding part 14 Printed circuit board 15 Component 16 IC
17 Volume knob 18 Battery storage part 19 Step part 20 Arc-shaped holding part 21 Battery cover 25 First terminal board 26 Connection part 27 Bending piece 28 Projection part (terminal)
31 connecting plate 32 holding cylinder 33 hinge pin 34 second terminal plate 35 protrusion 36 end plate 37 coil spring (terminal)
38 Pressing spring (coil spring)
41 Pin 42 Positive side terminal plate 43, 44 Holding rib 47 Gum-type secondary battery 48 Cylindrical primary battery 50 Notch

Claims (4)

A battery storage section capable of selectively storing two types of batteries;
A first terminal plate provided at one end of the battery housing;
A second terminal plate movably provided at one end of the battery housing;
The second terminal plate is provided on the second terminal plate. When the first battery is accommodated, the second terminal plate is brought into contact with the first battery and moved to a position that does not obstruct the mounting of the first battery. The tangent,
Equipped with,
A battery having a polarity opposite to the first terminal board and the second terminal board is provided inside a lid of the battery housing portion, and is used in common for two types of batteries. Contact switching device for storage.   2. The contact switching device for a battery storage unit according to claim 1, wherein the contact part is formed of a deep-drawn protrusion provided on the second terminal plate. 3.   2. The contact of the battery storage unit according to claim 1, wherein one of the two types of batteries is formed of a square secondary battery and the other is formed of a cylindrical primary battery. Switching device. 4. The contact switching device for a battery storage unit according to claim 3 , wherein a coil spring that contacts a negative electrode of the cylindrical primary battery is attached to the second terminal plate.

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