JP2018125152A - Electromotion method of waterproof type battery and water detection sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a contradictory requirement that a battery used for a water detection sensor for automatically detecting a rise in water level of a river or the like requires water at the time of power generation, but must block water at the time of non-operation. Provide a moisture-proof battery. SOLUTION: A battery that generates electricity by infiltrating external water into a powder filler is configured to be shielded from external moisture by a waterproof mechanism, and an expansion force or contraction force of a substance that expands or contracts by absorbing external water. As a result, the waterproof function is released, it is possible for outside water to infiltrate into the moisture-proof battery, and power generation is started by the infiltration of outside water. [Selection diagram] Fig. 2-5

Description

  The present invention relates to an electromotive method for a moisture-proof battery that starts power generation by absorbing water, and a water detection sensor using the moisture-proof battery based on the method.

Examples of the moisture-proof battery and the prior art using the moisture-proof battery include the following.
Patent Document 1: Japanese Patent Application Laid-Open No. 2014-107243 Document 1 discloses a bag-like shape in which a battery part made of battery members such as a positive electrode body, a negative electrode cylinder body, and a powder filler, and a liquid serving as an electrochemical reaction catalyst are contained. A moisture-proof type that consists of a liquid storage part (liquid storage bag) and a needle part, and when the needle is pressed, the tip of the needle part penetrates the liquid storage bag, the liquid inside is supplied to the powder filler, and power generation is started A battery is described.

Patent Document 2: Japanese Patent Application Laid-Open No. 2015-179656 Document 2 describes that a moisture-proof battery, a laminate pouch in which water is sealed and an LED are stored in a resin tray, and a boundary portion that separates the moisture-proof battery and the laminate pouch A flow path through which water flows is formed in the moisture-proof battery. A thin light with built-in moisture-proof battery is described in which power is generated by manually pressing a resin tray in which the laminate pouch is stored to supply moisture to the moisture-proof battery from the laminate pouch and the LED is lit.

Patent Document 3: Japanese Patent Laid-Open No. 52-086122 Document 3 includes a battery member, a container containing an electrolytic solution, and a lamp. In an emergency, the electrolytic solution is injected into the battery member to generate electric power and the lamp is turned on. An hour battery lamp is described.

Patent Document 4: Japanese Utility Model Publication No. 50-023787 Document 4 provides a power generation element, an electrolytic solution stored in a container, and a blade for cutting the container of the electrolytic solution. A liquid injection battery to be injected into the power generation element is described.

Patent Document 5: Japanese Utility Model Publication No. 52-057388 In Document 5, an electrolytic solution storage bag for storing an electrolytic solution, a battery member such as an anode mixture and negative electrode zinc, and a plug for cutting the storage bag are integrally provided to generate power. There is described a liquid injection type dry battery in which an electrolytic solution storage bag is incised by sometimes pressing a stopper and the stored electrolytic solution is injected into a battery member.

Patent Document 6: Japanese Utility Model Publication No. 54-067227 Document 6 discloses a blade provided on the upper surface of a water storage tank in an air battery comprising a battery tank for storing battery members and a water tank separated from the battery tank and a thin film. Describes a water-injected air battery that breaks the thin film and starts power generation.

Patent Document 7: JP-A-2006-076361 discloses a positive electrode composed of a metal material having a lower ionization tendency than magnesium, a negative electrode composed of a magnesium alloy material, and one or more filled in a housing. A solid electrolyte moisture-proof battery composed of seed citrate is described.

Patent Document 8: Japanese Patent No. 5695854 In Document 8, an electrically insulating and water-permeable outer sheet having a bag-shaped first holding part, a negative electrode plate having a negative electrode terminal, and a first holding part, A thin moisture-proof battery comprising a positive electrode terminal having a positive electrode plate in which a positive electrode active material is interposed between the negative electrode plate and the negative electrode plate is described.

Patent Document 9: Japanese Patent No. 5638273 discloses a positive electrode plate having a positive electrode terminal, a negative electrode plate having a negative electrode terminal, a positive electrode active material between the positive electrode plate and the negative electrode plate, and electrical insulation. And a positive electrode active material layer contacting the inner surface of the positive electrode plate between the positive electrode plate and the negative electrode plate, and a positive electrode active material layer and an inner surface of the negative electrode plate. A thin and small moisture-proof battery is described in which a layer of an electrical insulator formed by an outer sheet is interposed, and both outer surfaces of the positive electrode plate and the negative electrode plate are encapsulated by the outer sheet.

JP 2014-107243 A JP2015-179656A JP 52-086122 A Japanese Utility Model Publication No. 50-023787 Japanese Utility Model Publication No. 52-057388 Japanese Utility Model Publication No. 54-066727 JP 2006-076361 A Japanese Patent No. 5695854 Japanese Patent No. 5638273

The configurations described in Documents 1 to 6 are provided with a moisture-proof battery and a storage bag that holds liquid supplied to the moisture-proof battery in the container, and the user breaks or presses the storage bag so that the user can The liquid is supplied to the moisture-proof battery. Since the moisture-proof battery is housed in the container, it is not exposed to the outside air, absorbs moisture in the outside air, does not deteriorate, and can be stored for a long time.
However, the configuration of each document is such that the user supplies the liquid held in the storage bag to the moisture-proof battery, and the moisture-proof battery automatically starts power generation when a flood occurs, etc. Can not be used.
The present invention relates to a moisture-proof battery used for a water detection sensor that automatically notifies danger when a flood or the like occurs. Water is required during power generation, but water must be shut off during non-operation. Provided is a moisture-proof battery electromotive method that solves conflicting requirements, and a water detection sensor using the electromotive method.

  In order to solve the conflicting requirement that water is required during power generation but moisture must be shut off during non-operation, the present invention provides an expansion force or contraction force of a substance that expands or contracts by absorbing water. Accordingly, the waterproof function of the moisture-proof battery is released, and external water can enter the moisture-proof battery. With this configuration, when river flooding or road flooding occurs, it becomes possible for water such as flood flooding to release the waterproof function of the moisture-proof battery and enter the moisture-proof battery and start power generation. .

  According to the configuration of the present invention, it is possible to wait for a long time without requiring frequent maintenance, and it is possible to provide a moisture-proof battery that automatically starts power generation using external water during flood inundation.

Conceptual diagram of a water detection sensor using a moisture-proof battery according to the present invention. Appearance and perspective view of a water detection sensor according to Example 1 Assembly drawing of water detection sensor according to embodiment 1 1 is a configuration diagram of a moisture-proof battery for a water detection sensor according to a first embodiment. The figure of the moisture-proof type battery and electromotive case of the water detection sensor which concern on Example 1. The figure of the moisture-proof type battery and electromotive case where the water detection sensor which concerns on Example 1 was combined. Figure of the battery part of the water detection sensor according to Example 1 (before water injection) Figure of the battery part of the water detection sensor according to Example 1 (after water injection) Explanatory drawing of the operation | movement water level of the water detection sensor which concerns on Example 1. FIG. External view of moisture-proof battery according to Example 2 Exploded view of the electromotive case of the moisture-proof battery according to Example 2 Operation explanatory diagram of moisture-proof battery according to Example 2 (before water immersion) Operation explanatory diagram of moisture-proof battery according to Example 2 (before water immersion) Operation explanatory diagram of moisture-proof battery according to Example 2 (after immersion) Operation explanatory diagram of moisture-proof battery according to Example 2 (after immersion) Explanatory drawing of the operating water level of the moisture-proof battery according to Example 2 External view of moisture-proof battery according to Example 3 Exploded view of the electromotive case of the moisture-proof battery according to Example 3 Front side of moisture-proof battery according to Example 3 (before water immersion) Front side of moisture-proof battery according to Example 3 (after water immersion) Operational diagram of shrinkable material and thin film of moisture-proof battery according to Example 3 Explanatory drawing of the operating water level of the moisture-proof battery according to Example 3 Explanatory drawing of the operating water level of the moisture-proof battery according to Example 3 The figure which shows the modification of an output part

[Outline of the Invention]
FIG. 1A is a conceptual diagram of a first water detection sensor using a moisture-proof battery according to the present invention, and includes a power supply device 10 that uses the moisture-proof battery as a power source and a warning indicator 11 that includes an LED or the like. ing. The device is installed at a height at which water enters the power supply device 10 when the water level of a river or road floods rises to a dangerous level. In a situation where the water level of a river or the like is lower than a significant water level and water does not enter the power supply device 10, the moisture-proof battery of the power supply device 10 does not generate power and the warning indicator 11 does not light up. When the water level of a river or the like reaches a significant water level, water enters the moisture-proof battery, the moisture-proof battery starts generating power, and the warning indicator 11 is lit.

  FIG. 1B is a conceptual diagram of a second water detection sensor using a moisture-proof battery according to the present invention, and includes a power supply device 20 that uses the moisture-proof battery as a power source, a microcontroller 21, a positioning device 22, and communication. The network communication I / F 23 is used. Similarly to (a), when the water level of a river or the like rises to a significant water level, the water is installed at a height at which the water enters the power supply device 10. It enters, and the moisture-proof battery of the power supply device 20 starts power generation. The microcontroller 21 is activated by the power of the moisture-proof battery, collects various information of the water detection sensor such as information on the position where the device is installed by the GPS function of the position measurement device 22, the power generation capability of the moisture-proof battery, and communicates. The data is transmitted to the center through the network communication I / F 23.

[Example 1]
FIGS. 2-1 to 2-8 are views showing a water detection sensor according to Example 1 using the moisture-proof battery according to the present invention.
FIG. 2-1 is a diagram of the first embodiment, (a) is a top view, (b) is a perspective view, (c) is a cross-sectional view of “A-A” in (d), (d) is a front view, (E) is a rear view, (f) is a perspective view, and (g) is a bottom view.
FIG. 2-2 is an assembly diagram of the first embodiment, where (a) is a perspective view from above, (b) is a perspective view from below, and (c) is a perspective view.

In the water detection sensor of the first embodiment, a moisture-proof battery 110 and an electromotive case 130 are housed in a cylindrical case 120. The upper lid 103 of the case 120 is provided with an LED fixing portion 101, and the LED 102 is installed.
The LED 102 and the moisture-proof battery 110 are connected by a pair of positive and negative conductive wires 105. The electrode part of the moisture-proof battery 110, the LED 102, and the conductive wire 105 are covered with a protective cover 112 and protected from water. The upper lid 103 is aligned and bonded to the protective cover 112 and the case 120 by the positioning member 104.

A plurality of side holes 121 and bottom holes 122 which are holes for taking water are provided at the bottom and bottom of the case 120. When the water level of a river or the like where the water detection sensor is installed rises and exceeds the height of the water intake hole, water enters the case 120.
Above the insertion plate 131 in the electromotive case 130, a material 140 that expands greatly by absorbing water, such as a water-absorbing polymer, is arranged, absorbs water that has entered the case 120, and expands. The waterproof function of the moisture-proof battery 110 is canceled. As a result, the water in the case 120 is supplied to the powder filler 154 in the moisture-proof battery 110, the moisture-proof battery 110 starts generating power, and the LED 102 is lit. When the water detection sensor described above is installed at a specified height from the ground level, the moisture-proof battery 110 starts power generation and turns on the LED 102 when the water level rises to that height. It can be used as a water gauge with a specified height.

FIG. 2-3 is an example of a moisture-proof battery used in Example 1.
The moisture-proof battery 110 includes a negative electrode cylinder 156, a powder filler 154 filled in the negative electrode cylinder 156, and a positive electrode current collector inserted in a positive electrode current collector insertion hole 155 provided in the center of the powder filler 154. The electric body 153 is configured. The powder filler 154 is placed in a permeable bag and is press-fitted and fixed.
An insulator 152 is stacked on the powder filler 154 and accommodated in the outer cylinder 150. In the center of the insulator 152, there is a positive electrode current collector through hole 158 through which the positive electrode current collector 153 extending from the positive electrode current collector insertion hole 155 passes. The upper end of the positive electrode current collector 153 penetrating the positive electrode current collector through hole 158 is located in the outer cylinder protrusion 157 provided on the upper surface of the outer cylinder 150, and the positive electrode terminal 151 is mounted.
The positive conducting wire of a pair of positive and negative conducting wires 105 that drive the LED 102 is connected to the positive terminal 151, and the negative conducting wire is connected to the negative electrode cylinder 156 through the outer cylinder 150.

2-4 are detailed views of the electromotive case 130, (a) is a perspective view from above, and (b) is a perspective view from below. FIGS. 2-5 are views in which the moisture-proof battery 110 and the electromotive case 130 are combined, where (a) is a perspective view from above and (b) is a perspective view from below.
The electromotive case 130 includes a pair of front and rear side plates 137 having water intrusion holes 132 and a pair of left and right side plates 138 having insertion plate insertion holes 139 into which the insertion plates 131 are inserted. Each side plate is made of resin, and the ridges between the side plates are thinned. By making each ridge side thinner, it usually has a waterproof effect, but by applying a force from the inside, it can be easily broken to create a gap.

The upper part of the electromotive case 130 is bonded to an electromotive case mounting part 158 provided at the bottom of the moisture-proof battery 110. Moreover, the partition plate 141 is provided in the space formed by each side plate, and the upper space of the partition plate 141 is separated from the lower space. With this configuration, the moisture-proof battery 110 is separated from the outside and the lower space of the electromotive case 130 to prevent water from entering from the outside and the bottom. After the water-absorbing expansion material 140 is stored in the lower part of the partition plate 141, the insertion plate 131 is inserted through the insertion plate insertion holes 139 provided in the left and right side plates 138, and the water-absorbing expansion material 140 is inserted into the electromotive case 130. Support in the lower space.
A plurality of water intrusion holes 132 are formed in the front and rear side plates 137 of the electromotive case 130, and since there is a gap between the insertion plate 131 and the front and rear side plates 137, water that has entered the case 120 can be easily removed. It is possible to reach the water-absorbing expansion material 140.

FIG. 2-6 is a view of the moisture-proof battery 110 and the electromotive case 130 before water immersion, FIG. 2-7 is a view of the moisture-proof battery 110 and the electromotive case 130 after water immersion, (a) is a top view, and (b) ) Is a perspective view, (c) is a left side view, (d) is a cross-sectional view taken along line AA of (e), (e) is a front side view, (f) is a right side view, and (g) is a rear view. Side view, (h) is a bottom view.
In the same figure, 110 is a moisture-proof battery, 130 is an electromotive case, 131 is an insertion plate, 132 is a water penetration hole of the electromotive case, 137 is a front and rear side plate of the electromotive case, 138 is a left and right side plate of the electromotive case, 140 is a water-absorbing expansion material, 141 is a partition plate, 142 is a gap generated by deformation of each side plate, 150 is an outer cylinder, 151 is a positive terminal, 152 is an insulator, 153 is a positive current collector, 154 is powder-filled The material 156 is a negative electrode cylinder, and 157 is an outer cylinder protrusion.

2-6, the volume of the water-absorbing expansion material 140 in the electromotive case 130 is smaller than the space formed by the front and rear side plates 137, the left and right side plates 138, the partition plate 141, and the insertion plate 131. The ridges between the side plates are closed, and the moisture-proof battery 110 is placed in a waterproof state.
When the water level of a river or the like where the water detection sensor is installed rises and exceeds the height of the water intake hole of the case 120, water enters the case 120, and then the water intrusion hole 132 of the electromotive case 130 Enters the lower space in the electromotive case 130. The water-absorbing expansion material 140 absorbs the invading water and expands, and presses each side plate toward the outside. Since the ridges between the side plates are thinned, the side plates are broken by the expansion pressure of the water-absorbing expansion material 140, and the side plates are deformed outward.
As a result, a gap 142 reaching above the partition plate 141 is formed between the side plates, and water in the case 120 is supplied to the moisture-proof battery 110 through the gap 142 to start power generation.

2-8 is a diagram showing the relationship between the water level in the case 120 and the moisture-proof battery 110, where (a) shows the water level at which water starts to enter the case, and (b) shows the water level during power generation. It is.
(A) When the water level of a river or the like rises and exceeds the water intake hole 121 of the case 120 and reaches the water level 161, the water absorbent expansion material 140 expands and pushes the front and rear side plates and the left and right side plates of the electromotive case 130 outward. As a result, the waterproof function of the moisture-proof battery 110 is canceled and water can enter the powder filler 154.
When the water level further rises and reaches the water level 162, water is supplied to the powder filler 154, the moisture-proof battery 110 starts generating power, and the LED 102 is lit.
With this configuration, when in a standby state, the moisture-proof battery 110 of the water detection sensor is not exposed to the outside air and is not deteriorated by moisture such as a river. When the water level of a river or the like exceeds the height at which the water detection sensor is installed, the waterproof function of the water detection sensor is automatically released, and the moisture-proof battery 110 starts generating power and turns on the LED 102.

[Example 2]
FIGS. 3-1 to 3-7 are views showing Example 2 of the moisture-proof battery according to the present invention.
3-1 is an external view of Example 2, (a) is a top view, (b) is a perspective view, (c) is a left side view, (d) is a front side view, and (e) is a right side view. (F) is a rear side view, and (g) is a bottom view.
In the figure, 210 is a moisture-proof battery, 250 is an outer cylinder, 251 is a positive electrode terminal, 257 is an outer cylinder protrusion, 231 is an insertion plate, 232 is a water intrusion hole in the electromotive case, and 237 is an electromotive case. Front and rear side plates 238 are left and right side plates of the electromotive case, and these are the moisture-proof battery 110, the outer cylindrical body 150, the positive terminal 151, the outer cylindrical protrusion 157, the plug-in of FIGS. Corresponding to the plate 131, the water intrusion hole 132 of the electromotive case, the front and rear side plates 137 of the electromotive case, and the left and right side plates 138 of the electromotive case (the ridges between the side plates are thinned). Never).

3-2 is a detailed view of the electromotive case 230, (a) is a perspective view from above, and (b) is a perspective view from below.
The electromotive case 230 includes a pair of front and rear side plates 237 having water intrusion holes 232 and a pair of left and right side plates 238 having insertion plate insertion holes 239 into which the insertion plates 231 are inserted. A fixing plate 242 for fixing the water-absorbing expansion material is provided in the central portion of the space formed by each side plate of the electromotive case 230, and a fixing plate hole 244 is formed in the central portion of the fixing plate 242.
An electromotive case mounting portion 258 for mounting the electromotive case 230 is provided at the bottom of the moisture-proof battery 210, and a separation thin film 243 is fixed with an adhesive or the like. The thin film 243 functions as a waterproof means for the moisture-proof battery 210 by separating the interior of the moisture-proof battery 210 from the space of the electromotive case 230. The thin film 243 is made of a soft material and can be pierced by a projection such as a needle.
The water-absorbing expansion material 140 is installed in the space below the fixed plate 242, and the insertion plate 131 is inserted through the insertion plate insertion holes 139 provided in the left and right side plates 138. A needle 241 is installed on the upper part of the water-absorbing expansion material 140 from the fixed plate hole 244 toward the thin film 243.

FIG. 3C is a diagram of the moisture-proof battery 210 and the electromotive case 230 before water injection, excluding the side plate 237 in front of the electromotive case 230, and FIG. 3-4 is a diagram of the moisture-proof battery 210 before water immersion. It is the external appearance and sectional drawing of the electromotive case 230. FIG. In each figure, (a) is a top view, (b) is a perspective view, (c) is a left side view, (d) is a front side view, (e) is a right side view, (f) is a rear side view, ( g) is a bottom view, and FIG. 3-4 (h) is a “A-A” cross-sectional view of FIG. 3-4 (d).
FIG. 3-5 is a diagram of the moisture-proof battery 210 and the electromotive case 230 after water immersion, excluding the side plate 237 in front of the electromotive case 230, and FIG. 3-6 is a diagram of the moisture-proof battery 210 after water immersion. It is the external appearance and sectional drawing of the electromotive case 230. FIG. In each figure, (a) is a top view, (b) is a perspective view, (c) is a left side view, (d) is a front side view, (e) is a right side view, (f) is a rear side view, ( g) is a bottom view, and (h) of FIG. 3-6 is a “A-A” cross-sectional view of (d) of FIG. 3-6.

3-3 to 3-6, 210 is a moisture-proof battery, 230 is an electromotive case, 231 is an insertion plate, 232 is a water penetration hole of the electromotive case, 237 is a front and rear side plate of the electromotive case, and 238 is Left and right side plates of the electromotive case, 240 is a water-absorbing expansion material, 250 is an outer cylinder, 251 is a positive electrode terminal, 252 is an insulator, 253 is a positive electrode current collector, 254 is a powder filler, 256 is a negative electrode cylinder, 257 Is an outer cylindrical protrusion.
In the state before water immersion shown in FIGS. 3-3 and 3-4, the water absorbent expansion material 240 in the electromotive case 230 is not expanded, and the protrusions 241 provided on the water absorbent expansion material 240 are fixed. Although protruding from the fixed plate hole 244 of the plate 242, it does not reach the separating thin film 243, and the thin film 243 is not damaged. Accordingly, the thin film 243 functions as a waterproof means for the moisture-proof battery 210.

When the water level of a river or the like where the water detection sensor is installed rises and water enters the electromotive case 230, the water-absorbing expansion material 240 expands, and the state shown in FIGS. 3-5 and 3-6 Become.
The water-absorbing expansion material 240 that has absorbed water expands to form a protruding bulge 245 from the fixing plate hole 244 of the fixing plate 242. The protrusion 241 provided on the upper surface of the water-absorbing expansion material 240 is pushed by the bulge 245 and breaks through the thin film 243 to be damaged. When the thin film 243 is damaged, the waterproof function of the moisture-proof battery 210 is released, and water in the electromotive case 230 is supplied to the powder filler 254 via the damaged portion to start power generation.

FIG. 3-7 is a diagram showing the relationship between the intrusion water level and the moisture-proof battery 210, where (a) shows the water level 261 at which water starts to enter the electromotive case 230, and (b) shows the water-absorbing expansion material 240. The water level 262 that expands and the protrusions damage the thin film 243 is shown in FIG.
(A) When the water level of a river or the like rises and exceeds the water intake hole of the case and reaches the water level 261, the water enters the electromotive case 230 and the water-absorbing expansion material 240 starts to expand.
(B) When the water level further increases, the water-absorbing expansion material 240 expands and protrudes from the fixing plate hole 244 of the fixing plate 242 to form a protruding bulge 245. When the water level reaches the water level 262, the protrusion 241 is pushed by the bulge 245 to break through the thin film 243, and the waterproof function of the moisture-proof battery 210 is released.
(C) When the water level further rises and reaches the water level 263, water is supplied to the powder filler 254 via the damaged portion of the thin film 243, and the moisture-proof battery 210 starts power generation.

Example 3
FIGS. 4-1 to 4-7 are views showing Example 3 of the moisture-proof battery according to the present invention.
4-1 is an external view of Example 3, (a) is a top view, (b) is a perspective view, (c) is a left side view, (d) is a front side view, and (e) is a right side view. (F) is a rear side view, and (g) is a bottom view.
In the figure, 310 is a moisture-proof battery, 350 is an outer cylinder, 351 is a positive terminal, 357 is an outer cylinder protrusion, 331 is an insertion plate, 332 is a water intrusion hole in the electromotive case, and 337 is an electromotive case. Front and rear side plates 338 are left and right side plates of the electromotive case, and these are the moisture-proof battery 110, the outer cylindrical body 150, the positive terminal 151, the outer cylindrical protrusion 157, the plug-in of FIGS. Corresponding to the plate 131, the water intrusion hole 132 of the electromotive case, the front and rear side plates 137 of the electromotive case, and the left and right side plates 138 of the electromotive case (the ridges between the side plates are thinned). Never).
Reference numeral 361 denotes a water-absorbing shrinkage material, which is made of a material that shrinks by containing moisture such as sisal hemp. One end of the water-absorbing shrink material 361 is fixed to the insertion plate 331 by a shrink material fixing ring 362. As shown in FIG. 4B, the water-absorbing shrink material 361 passes through the shrink material through hole 365 of the insertion plate 331 and is coupled to the separation thin film 364.

FIGS. 4-2 and 4-3 are exploded views of the moisture-proof battery 310 and the electromotive case 330. FIG. 4A is a perspective view from above of the electromotive case 330, and FIG. (C) is a perspective view from above during assembly, (d) is a perspective view from below of (c), and (e) is an assembled moisture-proof battery 310 and electromotive case 330. (F) is a perspective view from below of (e).
The cylindrical water-absorbing shrink material 361 is passed through a shrink material through hole 365 provided in the center of the insertion plate 331 inserted into the insertion plate insertion hole 339 of the left and right side plates 338 of the electromotive case. On the inner surface of the insertion plate 331, the positioning ring 363 is fixed to the water-absorbing shrinkable material 361 by adhesion or the like, and the fixing ring 362 is fitted on the lower surface side. The water-absorbing shrinkable material 361 is fixed to the insertion plate 331 with the insertion plate 331 sandwiched between the fixing ring 362 and the positioning ring 363.

An electromotive case mounting part 358 for mounting the electromotive case 330 is provided at the bottom of the moisture-proof battery 310, and a separation thin film 364 is fixed with an adhesive or the like. The thin film 364 functions as a waterproof means for the moisture-proof battery 310 by separating the interior of the moisture-proof battery 310 from the space of the electromotive case 330. Further, the thin film 364 is made of a soft material, and can be broken by applying a tension to cause a crack.
The upper end of the water-absorbing shrinkable material 361 is fixed to the center of the thin film 364 by adhesion or the like.
A plurality of water intrusion holes 332 are formed in the front and rear side plates 337 of the electromotive case 330, and external water enters the electromotive case 330 through the water intrusion holes 332 when the water level of a river or the like rises. The water-absorbing shrinkable material 361 that has absorbed the infiltrated water shrinks, pulls the central portion of the thin film 364 downward, and applies tension to the thin film 364.

4-4 is an external view and a cross-sectional view of the moisture-proof battery 310 and the electromotive case 330 before water immersion, and FIG. 4-5 is an external view and a cross-sectional view of the moisture-proof battery 310 and the electromotive case 330 after water immersion. is there. In both figures, (a) is a top view, (b) is a perspective view, (c) is a left side view, (d) is a front side view, (e) is a right side view, (f) is a rear side view, ( g) is a bottom view, and (h) is a “A-A” cross-sectional view of (d).
4-4 and 4-5, 310 is a moisture-proof battery, 330 is an electromotive case, 331 is an insertion plate, 332 is a water penetration hole of the electromotive case, 337 is a front and rear side plate of the electromotive case, 338 is Left and right side plates of the electromotive case, 350 is an outer cylinder, 351 is a positive electrode terminal, 352 is an insulator, 353 is a positive electrode current collector, 354 is a powder filler, 356 is a negative electrode cylinder, and 357 is an outer cylinder protrusion. is there.

FIG. 4-6 is a view showing the operation of the shrinkable material 361 and the thin film 364. (a) is a perspective view from below when not flooded, (b) is a perspective view from below when flooded, and (c) is a perspective view from below. The figure from the side of (b), (d) is a perspective view from the upper part of (b).
4-4 (h) and 4-6 (a), there is no water in the lower space of the electromotive case 330, the upper end is fixed to the separation thin film 364, and the lower end is fixed by the fixing ring 362 and the positioning ring 363. The water-absorbing shrinkable material 361 fixed to the insertion plate 331 is dry. Therefore, the thin film 364 is not damaged, and the moisture-proof battery 310 is kept waterproof.
In FIG. 4-5 (h) and FIG. 4-6 (b), water immersion occurs in the lower space of the electromotive case 330, and the water-absorbing shrinkable material 361 shrinks. This contraction becomes a tension that pulls the center of the thin film 364 downward, a strain 365 is generated, and a crack 366 is formed in the thin film 364. The waterproof function of the moisture-proof battery 310 is canceled by this crack, and water in the electromotive case 330 is supplied to the powder filler 354 of the moisture-proof battery 310 via the crack 366 to start power generation.

FIG. 4-6 is a diagram showing the relationship between the intrusion water level and the moisture-proof battery 310, where (a) shows the water level 371 at which water starts to enter the electromotive case 330, and (b) shows the water-absorbing shrinkable material 361. The water level 372 which contracts and the crack 366 generate | occur | produces in the thin film 364 is a figure which shows the water level 373 at the time of electric power generation.
(A) When the water level of a river or the like rises and exceeds the water intake hole of the case and reaches the water level 371, water enters the electromotive case 330 and the water-absorbing shrinkable material 361 starts to shrink.
(B) When the water level further increases, the shrinkage of the water-absorbing shrink material 361 proceeds, and a downward tensile strain 365 is generated at the center of the thin film 364. When the water level reaches the water level 372, the tension generated by the shrinkage of the water-absorbing shrinkable material 361 increases until the crack 366 is generated in the thin film 364, and the waterproof function of the powder filler 354 is released.
(C) When the water level further rises and reaches the water level 373, water is supplied to the powder filler 354 through the crack 366 of the thin film 364, and the moisture-proof battery 310 starts power generation.

FIG. 5 is a diagram showing a modified example of the output unit driven by the moisture-proof battery, where 410 is a moisture-proof battery, 413 is a pair of positive and negative conductors connected to the positive terminal 411 and the outer cylinder 412, and 414 is a micro A circuit board provided with a controller and the like, 413 is a spacer for protecting electrical components and the like from water, 415 is an antenna, and 416 is an LED.
The microcontroller holds identification information and the like, collects state information such as electromotive force of the moisture-proof battery, and transmits the information to the center via the antenna. Further, by providing a GPS function, it is possible to acquire own position information, and to add own position information to transmission information.
With this configuration, when the water level of a river or the like where the water detection sensor is installed exceeds a predetermined value and the battery starts generating power, the LED 416 is automatically turned on to notify the neighborhood of the presence of the danger of flooding and to the center. It becomes possible to transmit that the water level exceeded the dangerous value together with the location information. By collecting information in the device, such as the power generation state of the moisture-proof battery, and transmitting it to the center, the center can know the state of the water detection sensor and predict the operational time.

In order to use a moisture-proof battery for a water detection sensor that notifies the danger of flooding a river or flooding a road, it is necessary for the moisture-proof battery to automatically generate power when the water level exceeds a dangerous value.
However, a moisture-proof battery that starts power generation by adding water absorbs moisture in the atmosphere and discharges and deteriorates. In order to prevent this and enable long-term storage, it is necessary to block the moisture-proof battery from outside air and cut off contact with moisture in the atmosphere.

In order to solve the conflicting requirement that water is required during power generation but moisture must be shut off during non-operation, the present invention provides for the expansion of materials that expand or contract by absorbing external water such as floods. The waterproof function of the moisture-proof battery is released by force or contraction force, and the outside water can enter the moisture-proof battery.
With this configuration, it is possible to wait for a long time without requiring frequent maintenance, and it is possible to provide a moisture-proof battery that automatically starts power generation using external water during a flood.
Further, when the water detection sensor using the moisture-proof battery according to the present invention described above is installed at a specified height from the ground level, the moisture-proof battery generates power when the water level rises to the specified height. Since the light emitting element is caused to emit light when it is started, the water detection sensor can be used as a water level gauge having a specified height.

110 Moisture-proof battery 150 Outer cylindrical body 151 Positive electrode terminal 130 Electromotive case 131 Plug-in plate 132 Electromotive case water intrusion hole 137 Electromotive case front and rear side plate 138 Electromotive case left and right side plate 140 Water-absorbing expansion material

Claims (9)

  It is a method of generating electricity for a moisture-proof battery that has a waterproof function and starts power generation by absorbing external water. The waterproof function of the moisture-proof battery is canceled by the expansion force or contraction force of the material that changes its shape due to the external water. Then, a method for generating electricity in the moisture-proof battery, wherein outside water enters the moisture-proof battery and starts power generation.   2. The method for generating electricity in a moisture-proof battery according to claim 1, wherein the moisture-proof battery is covered with a waterproof side wall that is isolated from the outside, and the expansion force of the water-absorbing expansion material that expands by absorbing outside water is used. A method for generating electricity in a moisture-proof battery, wherein the side plate is deformed to allow intrusion of external water.   2. The method for generating electricity in a moisture-proof battery according to claim 1, wherein the moisture-absorbing battery is provided with a waterproof thin film that isolates the moisture-proof battery from the outside and a breakage means that breaks the thin film, and expands by absorbing outside water. A method for generating electricity in a moisture-proof battery, wherein the thinning film is broken by moving the breakage means by an expansion force of an expandable material, and allows intrusion of external water.   The electromotive method of the moisture-proof battery according to claim 1, comprising a waterproof thin film that isolates the moisture-proof battery from the outside, and a water-absorbing shrinkable material that is bonded to the thin film and contracts by absorbing water, A method for generating electricity in a moisture-proof battery, wherein the water-absorbing shrinkable material is damaged by applying tension to the thin film due to a shrinkage force generated by absorbing the outside water, thereby allowing the entry of the outside water. A water detection sensor for detecting outside water,
It has a waterproof function and has a moisture-proof battery that starts power generation by absorbing outside water.
The waterproof function of the moisture-proof battery is released by the expansion force or contraction force of the material whose shape changes due to the outside water, and the outside water enters the moisture-proof battery and power generation is started, so that the outside water is detected. A water detection sensor characterized by that.   The water detection sensor according to claim 5, wherein the moisture-proof battery is covered with a waterproof side wall that is isolated from the outside, and the side plate is formed by an expansion force of a water-absorbing expansion material that expands by absorbing external water. A water detection sensor that is deformed to allow ingress of outside water.   The water detection sensor according to claim 5, comprising a waterproof thin film that isolates the moisture-proof battery from the outside, a breakage means that breaks the thin film, and a water absorbing expansion material that expands by absorbing external water. A water detection sensor characterized in that, due to an expansion force, the damaging means is moved to break the thin film and allow intrusion of outside water.   6. The water detection sensor according to claim 5, further comprising: a waterproof thin film that isolates the moisture-proof battery from the outside; and a water-absorbing shrinkable material that is bonded to the thin film and contracts by absorbing water. A water detection sensor, wherein the thin film is damaged by applying tension to the thin film by a contraction force generated by absorbing the external water, and allows the ingress of external water.   The water detection sensor according to any one of claims 5 to 8, wherein the water is detected by emitting light with an electromotive force when the moisture-proof battery is generated. Detection sensor.

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