Method for attaching a flat-shaped battery and apparatus to be attached to a rotary portion
View Patent ↗An apparatus to be attached to a rotary portion includes a substrate and a flat-shaped battery buried in resin. The substrate and the flat-shaped battery are connected to each other via a terminal in such a manner that one of a positive electrode can and a negative electrode can constituting the flat-shaped battery, the can having a smaller amount of deformation caused by bulging at a time of the expansion of the flat-shaped battery, is opposed to the substrate. A surface of the flat-shaped battery having a smaller amount of deformation is opposed to the substrate, and hence, adverse effects on the apparatus, such as the displacement of the terminal and the deformation of the substrate, can be reduced even when the flat-shaped battery expands.
1. A method for attaching a flat-shaped battery used in an apparatus that has a substrate and is to be attached to a rotary portion,
the flat-shaped battery being a combination of a positive electrode can and a negative electrode can opposed to each other, and
the method comprising:
connecting the substrate and the flat-shaped battery to each other via a terminal;
wherein one of the positive electrode can and the negative electrode can is opposed to an inner or outer side of the substrate with respect to a rotation center of the rotary portion;
the negative electrode can has a different amount of deformation than the positive electrode can, wherein the deformation is caused by bulging at a time of expansion of the flat-shaped battery; and
the can having the smaller amount of deformation is opposed to the substrate; and burying the substrate and the flat-shaped battery in resin.
2. The method for attaching a flat-shaped battery according to claim 1 , wherein the flat-shaped battery is placed on the inner side of the substrate with respect to the rotation center of the rotary portion.
3. The method for attaching a flat-shaped battery according to claim 1 , wherein a mass of the flat-shaped battery is larger than a mass of the substrate.
4. The method for attaching a flat-shaped battery according to claim 1 , wherein the rotary portion is a tire.
5. An apparatus to be attached to a rotary portion, comprising a substrate and a flat-shaped battery,
wherein the flat-shaped battery is a combination of a positive electrode can and a negative electrode can opposed to each other,
wherein one of the positive electrode can and the negative electrode can is opposed to an inner or outer side of the substrate with respect to a rotation center of the rotary position;
the negative electrode can has a different amount of deformation than the positive electrode can, wherein the deformation is caused by bulging at a time of expansion of the flat-shaped battery; and
the can having the smaller amount of deformation is opposed to the substrate;
the substrate and the flat-shaped battery are connected to each other via a terminal, and the substrate and the flat-shaped battery are buried in resin.
6. The apparatus to be attached to a rotary portion according to claim 5 , wherein the flat-shaped battery is placed on the inner side of the substrate with respect to the rotation center of the rotary portion.
7. The apparatus to be attached to a rotary portion according to claim 5 , wherein a mass of the flat-shaped battery is larger than a mass of the substrate.
8. The apparatus to be attached to a rotary portion according to claim 5 , wherein the rotary portion is a tire.
9. The apparatus to be attached to a rotary portion according to claim 5 , wherein the apparatus is a transmitter of a tire air pressure monitoring system.
10. The method for attaching a flat-shaped battery according to claim 1 , wherein the negative electrode can has a smaller amount of deformation than the positive electrode can.
11. The method for attaching a flat-shaped battery according to claim 1 , wherein the negative electrode can has a larger amount of deformation than the positive electrode can.
12. The apparatus to be attached to a rotary portion according to claim 5 , wherein the negative electrode can has a smaller amount of deformation than the positive electrode can.
13. The apparatus to be attached to a rotary portion according to claim 5 , wherein the negative electrode can has a larger amount of deformation than the positive electrode can.