JP3026848U - Battery box replacement battery lid - Google Patents

Abstract

(57) An object of the present invention is to provide an alternative battery lid for a battery box that replaces the original battery and replaces the lid so that different types of batteries can be used with the same battery voltage. SOLUTION: A screw thread 9a is screwed into a screw seat around the periphery.
On the inner surface of the disk-shaped conductive lid body 10a provided with the above, the insulating substrate 20 in which the diode 21 exhibiting a forward voltage drop corresponding to the difference in the battery voltage between the original type battery and another type battery is arranged is mounted. . 21 anode terminal 21a of the diode is connected to the lid body 10a, cathode terminal 21
b is connected to the conductive surface 22 formed on the outer surface of the insulating substrate 20. The position of the conductive surface 22 that defines the thickness of the lid body 10a is adjusted such that the positive electrode of the different type battery is inside the battery box while the lid body 10a is screwed into the screw seat and the negative electrode of the different type battery is in contact with the conductive surface 22. Set so that it can be pressed against the contact point of.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention is a different type of battery box with a higher battery voltage than the battery box that houses the button type battery, which is configured by insulating the periphery of the disk-shaped case of one pole and providing the sealing plate of the other pole. The present invention relates to an alternative battery lid for a battery box that enables the button-type battery of the above item to be used as an alternative.

[0002]

[Prior art]

 HB type button-type mercury batteries are used in cameras, etc., but their production has been discontinued due to environmental conservation, and it is becoming difficult to obtain them in Japan.

[0003]

[Problems to be solved by the device]

 Therefore, the device using this type of battery has a problem that it cannot be used unless a substitute with the same outer shape and the same battery voltage is available.

The present invention focuses on the existence of a battery having a slightly higher battery voltage with an outer shape similar to that of an unobtainable battery, and replaces the original battery with a lid to replace the battery. It is an object of the present invention to provide an alternative battery lid for a battery box that allows different types of batteries to be used at the same voltage.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the present invention provides a screw seat into which a disk-shaped conductive lid is screwed into a conductive opening provided in a device body according to claim 1, and a contact is provided at the center of the inside of the screw seat. The button-type battery of the first type, in which the positive electrode sealing plate is provided by insulating the surroundings at the upper end of the negative electrode case, makes the positive electrode sealing plate contact the contact, and the bottom surface of the negative electrode case contacts the lid. In order to store the alternative second type button type battery, which has substantially the same or a small outer shape as the first type button type battery and has a high battery voltage, in the battery box , An alternative battery lid to be screwed into the screw seat instead of the lid, the first type and the second type being provided on the inner surface of the disk-shaped conductive lid body having the screw thread to be screwed into the screw seat in the periphery. The difference in the battery voltage of Install an insulating substrate on which a diode that exhibits a forward voltage drop is mounted, connect the anode terminal of the diode to the lid body, connect the cathode terminal to the conductive surface formed on the outer surface of the insulating substrate, and then connect the lid body. The position of the conductive surface that defines the thickness of the second type battery is pressed into contact with the positive electrode of the second type battery with the lid body screwed into the screw seat and the negative electrode of the second type battery contacting the conductive surface. The feature is that it is set to obtain.

When the second type battery is housed in a battery box and its negative electrode contacts the outer conductive surface of the insulating substrate and the positive electrode contacts the contact, the alternative battery lid is screwed in, and the negative electrode becomes a diode. Through to the lid body. Therefore, between the contacts and the conductive lid body, the battery voltage of the battery of the second type is lowered by the voltage drop in the forward direction of the diode, and a voltage approximately equivalent to the battery voltage of the first type is obtained. To be

[0007]

[Embodiment of device]

 An alternative battery cover for a battery box according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. In FIG. 5, 2 is an H-B type button-type mercury battery (FIG. 5B) with a battery voltage of about 1.3 V, which becomes difficult to obtain, and has a disk shape whose outer diameter becomes smaller in the middle of the height direction. On the upper end of the negative electrode case 3, there is provided a positive electrode sealing plate 4 which is insulated from the surroundings and slightly protrudes. The overall height is 3.2 mm, and the maximum outer diameter of the negative electrode case 3 is 11 mm.

As shown in FIG. 6, this mercury battery has a screw seat in which a disc-shaped lid 9 made of a conductive metal is screwed into an opening 7a of a conductive metal bottom plate 7 of a camera body of a product name Asahi Pentax SP type, for example. 8a is formed, an insulative wall portion 8b is provided inside thereof, and a contact 8c is attached to the central portion thereof to be housed in a battery box 8. That is, the mercury battery 2 is housed in a battery box 8 having a space corresponding to its outer shape so that the positive electrode sealing plate 4 contacts the contact 8c, and the screw thread 9a of the lid 9 is screwed into the screw seat 8a. , Its inner surface is brought into contact with the bottom surface of the negative electrode case 3. Thereby, a battery voltage is obtained between the electrode 8d connected to the contact 8c and the lid 9 or the bottom plate 7.

On the other hand, 1 is an SR62 6W type silver battery (FIG. 5A) having a battery voltage of about 1.5 V that can be a substitute battery for the mercury battery 2. This silver battery is also button-shaped, has the same 6.7 mm disk-shaped positive electrode case 5 with an outer diameter directed upward, and has its periphery insulated at its upper end and slightly protruding. A negative electrode sealing plate 6 is provided. The total height is 2.5 mm, which is lower than that of the mercury battery 2.

In FIG. 1, reference numeral 10 denotes an alternative battery lid of the battery box 8. Reference numeral 10a denotes a conductive metal lid body having a disk shape whose outer shape corresponds to the original lid 9, a thread 9a on the periphery, and a coin insertion groove 9b on the outer surface. A circular recess 11 having a diameter larger than that of the negative electrode sealing plate 6 is formed on the inner surface of the lid body, and a disk-shaped insulating substrate 20 of a corresponding size is concentrically mounted.

A cutout 20a having a corresponding shape into which a MA110 type diode 21 manufactured by Matsushita Electric Industrial Co., Ltd. is inserted is formed on the insulating substrate. The thickness of the insulating substrate 20 corresponds to the thickness of the diode 21 and is about 0.5 mm. As a printed circuit board, the conductive surface 22 (FIG. 2A) is formed on the entire outer surface thereof, and the diode 21 and the front and back surfaces are formed on the inner surface. A conductive surface 23 (FIG. 2B) is formed while leaving the periphery of the through hole 24 as a conductive member in a sector shape. The insulating substrate 20 slightly projects outward from the recess 11 so that the conductive surface 22 does not come into contact with the lid body 10a.

The anode terminal 21 a of the diode 21 is soldered to the conductive surface 23, and the cathode terminal 21 b thereof is soldered to the through hole 24 so as to be electrically connected to the conductive surface 22. The forward voltage drop of the diode 21 in the standard conductive state is about 0.15V, which corresponds approximately to the difference of 0.2V between the two battery voltages. A recess 11a is further formed on the inner surface of the lid body 10a so that the inner surface of the lid body 10a does not come into contact with the periphery of the cathode terminal 21b of the diode 21.

The conductive surface 22 has a ring shape with a corresponding inner diameter and has elasticity and insulation so that the silver battery 1 having a smaller outer diameter can be attached to the mercury battery 2 without displacement. A battery mounting wall 25 made of synthetic resin is attached. Its height is set slightly lower than that of the silver battery 1. The thickness position of the conductive surface 22 that defines the thickness of the lid main body 10a is approximately the same height position as when the mercury battery 2 is set in the original lid 9 with the negative electrode sealing plate 6 in contact with the conductive surface 22. The thicknesses of the recess 11, the conductive surfaces 22 and 23, and the insulating substrate 20 are set so that

FIG. 4 shows a state in which the lid main body 10 a is mounted on the battery mounting wall 25 of the silver battery 1 and is screwed into the battery box 8. The negative electrode sealing plate 6 is in contact with the conductive surface 22. Due to the protrusion of the conductive surface, the bottom surface of the positive electrode case 5 is pressed against the contact 8c like the positive electrode sealing plate 4 of the mercury battery 2.

As a result, as shown in FIG. 3, the battery voltage of the silver battery 1 of 1.5 V drops by about 0.15 V by the diode 21 while the power is being supplied to the exposure circuit of the camera. A battery voltage of about 1.3 V is output between the alternative battery lid 10. This causes the same operation as the original mercury battery 2.

It should be noted that the anode terminal may be connected to the lid body 10a without forming a conductive surface on the inner surface of the insulating substrate on which the diode is arranged. Further, the lid of the present invention is not limited to the above-mentioned silver battery, and can be configured to correspond to another type of button type battery having the same or small outer shape and high battery voltage. In that case, it is possible to arrange a plurality of diodes connected in series depending on the difference in battery voltage between the two types. The present invention can also be applied to a battery box provided in a body such as a hearing aid.

[0017]

[Effect of device]

 According to the first aspect of the present invention, by replacing the lid of the battery box of the device having the battery driving part, a different type battery having the same or relatively small size as the original battery and a high battery voltage is provided. It can be used as a substitute. For example, the 1.3V H-B type button-type mercury cell, which is no longer available on the market, can be replaced by a miniaturized 1.5V SR626W type silver cell, and thus this type of mercury cell was used. It becomes possible to continue to use devices such as cameras and hearing aids.

According to the invention of claim 2, it is possible to use an alternative battery having the same outer shape or a small size and high voltage for the battery box for the button type battery provided on the bottom plate of the camera body. This will prevent the camera from becoming unusable due to the discontinuation of the battery of.

According to the third aspect of the present invention, particularly the mercury battery, which has recently been discontinued, can be replaced with, for example, a button type silver battery by replacing the mercury battery with the lid containing one diode. According to the invention of claim 4, even if the alternative battery is significantly reduced in size, it can be securely housed in the battery box that creates a gap.

[Brief description of drawings]

1 is a cross-sectional view of an alternative battery lid of a battery box according to an exemplary embodiment of the present invention taken along line AA of FIG.

2A and 2B show an insulating substrate mounted on the lid, FIG. 2A is a plan view of an outer surface thereof, and FIG. 2B is a plan view of an inner surface thereof.

FIG. 3 is a circuit diagram showing a connection state of diodes mounted on the lid.

FIG. 4 is a cross-sectional view showing the usage state of the lid at the position of line BB in FIG.

FIG. 5 shows both types of batteries associated with the lid,
FIG. A is a side view of an SR626W type silver battery, and FIG.
FIG. 3 is a side view of an HB type mercury battery.

6A and 6B show a battery box of a camera to which the present invention is applied. FIG. 6A is a perspective view of the battery box, FIG. 6B is a sectional view of its lid, and FIG. 6C is a sectional view of the battery box. .

[Explanation of symbols]

 1 silver battery 2 mercury battery 3 negative electrode case 4 positive electrode sealing plate 5 positive electrode case 6 negative electrode sealing plate 8 battery box 8a screw seat 8c contact 9a screw thread 10 lid 10a lid body 20 insulating substrate 21 diode 22, 23 conductive surface

Claims (4)

[Scope of utility model registration request] 1. A screw seat into which a disk-shaped conductive lid is screwed is formed in a conductive opening provided in an apparatus body, and a contact is provided at an inner center of the device so that the upper end of the negative electrode case is insulated from the surroundings. The first type of button-type battery provided with the positive electrode sealing plate then contacts the positive electrode sealing plate with the contacts, and contacts the bottom surface of the negative electrode case with the lid to store the battery in the battery box. In order to accommodate a second type alternative button type battery having a substantially same or small outer shape as that of the first type button type battery and having a high battery voltage, the screw seat is used instead of the lid. An alternative battery lid to be screwed in, wherein the battery voltage of the battery of the first type and the second type is provided on an inner surface of a disk-shaped conductive lid body having a screw thread to be screwed into the screw seat around the lid. Is equal to The insulating substrate is a diode exhibiting a forward voltage drop are arranged mounted, connect the anode terminal of the diode to the lid body,
The cathode terminal is connected to a conductive surface formed on the outer surface of the insulating substrate, and the position of the conductive surface that defines the thickness of the lid body is set so that the lid body is screwed into the screw seat. An alternative battery lid for a battery box, characterized in that the positive electrode of the second type battery is set in pressure contact with the contact while the negative electrode of the battery is in contact with the conductive surface. 2. A screw seat for screwing a disk-shaped conductive lid is formed in an opening provided in a conductive metal bottom plate of a camera body, and a contact is provided at the center of the inside of the screw seat, so that the upper end portion of the negative electrode case is provided. A button type battery of the first type having a positive electrode sealing plate insulated from the surroundings is provided in a battery box to be housed by bringing the positive electrode sealing plate into contact with the contact and the bottom surface of the negative electrode case in contact with the lid. A second alternative, which is provided with a negative electrode sealing plate that insulates its periphery from the upper end of the positive electrode case, and has substantially the same or a small outer shape as the button type battery of the first type and has a high battery voltage Is a lid for an alternative battery that is screwed into the screw seat in place of the lid in order to accommodate a button-type battery of Of the lid body An insulating substrate is mounted on the surface, and a diode that exhibits a forward voltage drop corresponding to the battery voltage difference between the first type battery and the second type battery is inserted into the notch formed in the insulating substrate. , Connect the anode terminal of this diode to the lid body,
The cathode terminal is connected to a conductive surface formed on the outer surface of the insulating substrate, and the position of the conductive surface that defines the thickness of the lid body is adjusted such that the lid body is screwed into the screw seat and the negative electrode sealing plate is An alternative battery lid for a battery box, wherein the bottom surface of the positive electrode case is set in pressure contact with the contact in a state of being in contact with a conductive surface. 3. The first type of battery has a battery voltage of about 1.
It is a button type mercury battery with a voltage of 3V, the second type battery is a button type silver battery with a battery voltage of about 1.5V, and the diode has a forward voltage drop of around 0.2V. An alternative battery lid for the battery box according to claim 1 or 2, wherein: 4. An outer surface of an insulating substrate for accommodating a second alternative button type battery having an outer diameter smaller than that of the first type button battery in a battery box. An alternative battery lid for a battery box according to claim 1 or 2, wherein the conductive surface is provided with a ring-shaped insulating battery mounting wall having an inner diameter corresponding to the outer diameter and exhibiting elasticity. .