JP5801978B1 - Battery starter - Google Patents

Abstract

A battery starter capable of performing risk management over a long period of time is provided. An electrode storage portion for storing an electrode portion, an electrolyte storage portion for storing an electrolyte solution, a partition portion for partitioning the electrode storage portion and the electrolyte storage portion, and a magnetic body. And a destruction part 44 that collides with the partition part 42 and breaks at least a part thereof to allow the electrolyte solution 14 to contact the electrode part 12. And a holding portion 54 that receives the inertial force generated in the breaking portion 44 when a predetermined event occurs and allows the breaking portion 44 to move toward the partitioning portion 42 side. [Selection] Figure 2

Description

  The present invention relates to a battery starting device.

  Every day, great damage is caused by events such as natural disasters and man-made disasters such as major earthquakes and abnormal weather. It is preferable to avoid such damage, but in reality, it is almost impossible to detect and manage all dangers in advance.

  If some danger occurs chronically and there is a possibility that damage will occur as a result of a predetermined event, a risk management device is required to make the chronic danger manifest.

JP 2011-142047 A

  However, many danger management devices require a power source, and when the power source is a battery, its life is always a problem. In addition, a power source obtained from a commercial power source also has a circuit life, and regular maintenance is necessary to ensure a stable and normal power source, resulting in maintenance costs. In particular, when many risk management devices are provided, the maintenance cost is enormous.

  Even when regular maintenance is performed, the life of the battery of the danger management device may expire at a timing different from the maintenance timing. At this time, when a large natural disaster or the like occurs, the danger management device does not operate, and it becomes impossible to prevent damage in advance.

  Then, an object of this invention is to provide the battery starting device which can perform danger management over a long period of time in view of the said problem.

  The present invention is a battery activation device that activates a battery when a predetermined event occurs, and includes an electrode storage unit that stores an electrode unit, an electrolyte storage unit that stores an electrolytic solution, and the electrolyte storage unit. A cylindrical part provided inside, a partition part partitioning the electrode storage part and the electrolyte storage part, provided inside the cylindrical part, made of a magnetic material, and colliding with the partition part A destruction portion that allows at least a portion to be destroyed, and is configured by a magnet that is provided inside the cylindrical portion and holds the destruction portion at a predetermined position in a normal state, and the destruction occurs when a predetermined event occurs. Receiving the inertial force generated in the part, the holding part that enables the destruction part to move to the partition part side, the inside of the cylindrical part and between the holding part and the destruction part, and the cylinder The holding portion and the breaking portion are separated from each other by moving along the axial direction of the shape portion. A partition adjusting member capable of adjusting the magnitude of the magnetic force generated between the holding portion and the breaking portion by adjusting separation, and the electrolyte is inside the electrolyte storage portion. And being accommodated between the cylindrical part and the partition part, and allowing the destruction part to collide with the partition part and destroying at least a part thereof, thereby enabling the electrolyte solution to contact the electrode part. Features.

  In this case, when the destructive part collides with the partition part, the kinetic energy converted from the potential energy when being held at a predetermined position by the holding part is applied to the partition part, and It is preferable to destroy at least a part.

  In this case, it is preferable to have an urging portion that is made of an elastic body and urges the breaking portion toward the partition portion when being held by the holding portion.

  In this case, it is preferable to have an attracting part that is made of a magnet and draws the breaking part toward the partition part.

  In this case, it is preferable that the electrode housing portion is provided with a deterioration preventing means for preventing the occurrence of condensation in the electrode housing portion or the oxidation of the electrode portion.

  In this case, it is preferable that the partition part is provided with a stress concentration part for promoting the destruction by the collision of the destruction part.

  In this case, it is preferable that the electrode portion includes a magnesium alloy and copper, zinc and copper, and other metal pairs in which electrons move in one direction, which are pairs of materials constituting the battery.

  According to the present invention, the breaking part is held by the magnetic force of the holding part at a predetermined position in normal times, and the breaking part moves to the partition part side in response to the inertial force generated in the breaking part when a predetermined event occurs. And a destruction part collides with a division part and at least one part is destroyed. Thereby, the contact with the electrode part of electrolyte solution is attained, and it starts as a battery.

  As described above, since the electrolytic solution is not poured into the electrode portion in normal times, the electrode portion and the electrolytic solution are not in contact with each other and the battery is not started. For this reason, there is little wear of an apparatus and components. Thereby, even if the apparatus is installed for a long time, it is possible to prevent the product life from being exhausted. On the other hand, when a predetermined event occurs, the electrolytic solution is introduced into the electrode portion. Thereby, it starts as a battery for the first time. And by utilizing the chemical reaction of this battery, it becomes possible to reveal the danger and notify the surroundings.

  In addition, when the destruction part collides with the partition part, the potential energy of the destruction part when it is held at a predetermined position by the holding part (in a static state) is converted into kinetic energy and acts on the partition part. . Thereby, at least one part of a division part is destroyed. Thus, by using the potential energy of the destruction part in the static state, the partition part can be destroyed without requiring equipment for applying a special driving force to the destruction part.

  Further, by adopting a configuration having a biasing portion that biases the fractured portion toward the partitioning portion by an elastic force when being held by the holding portion (in a static state), energy by the elastic force of the biasing portion is adopted. This increases the potential energy of the fractured part in the static state. Thereby, the kinetic energy of the destruction part at the time of the collision with a division part increases, and a destructive force can be raised.

  In addition, by adopting a configuration having an attracting portion that draws the destruction portion toward the partition portion by the magnetic force, the kinetic energy of the destruction portion is increased by receiving the energy due to the magnetic force of the attraction portion. Thereby, the destructive power of a destructive part can be raised.

  In addition, by adopting a configuration in which the electrode housing part is provided with a means for preventing deterioration in the electrode housing part to prevent the occurrence of condensation in the electrode housing part or oxidation of the electrode part, dew condensation occurs inside the electrode housing part. Or oxidation of the electrode portion can be prevented. Thereby, it is possible to prevent moisture from coming into contact with the electrode part housed in the electrode housing part or being oxidized and deteriorated under the influence of the installation environment such as humidity and temperature. As a result, it is possible to prevent the battery from being erroneously activated or defectively activated when a predetermined event has not occurred.

  In addition, by adopting a configuration in which a stress concentration portion for promoting destruction by collision of the destruction portion is provided in the partition portion, stress concentrates on the stress concentration portion of the partition portion when the destruction portion collides. Since cracks and the like occur, the breakage of the partition portion is promoted. Thereby, destruction of a partition part and by extension, a starting of a battery are ensured, and the reliability of an apparatus can be improved.

  Moreover, by using a battery including a magnesium alloy and copper, zinc and copper, and other metal pairs in which electrons move in one direction, which is a pair of materials constituting the battery, it can be easily obtained at low cost, and It is possible to reliably start when a predetermined event occurs.

It is a conceptual diagram of the battery starting device of one Embodiment of this invention. It is the figure which showed the state in normal time of 1st Example of the battery starting apparatus of one Embodiment of this invention. It is the figure which showed the state when the predetermined event generate | occur | produced of the 1st Example of the battery starting apparatus of one Embodiment of this invention. It is the figure which showed the structure which provided the stress concentration part in 1st Example of the battery starting apparatus of one Embodiment of this invention. It is the figure which showed the state in normal time of 2nd Example of the battery starting apparatus of one Embodiment of this invention. It is the figure which showed the state in normal time of 3rd Example of the battery starting apparatus of one Embodiment of this invention. It is the figure which showed the state in normal time when 3rd Example of the battery starting apparatus of one Embodiment of this invention was inclined and installed with the predetermined | prescribed inclination angle.

  A battery starter according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the battery activation device 10 according to one embodiment makes danger manifest by utilizing a chemical reaction (for example, oxidation / reduction reaction) of the battery.

  The battery activation device 10 mainly includes an electrode unit 12, an electrolyte solution 14, an electrolyte solution input unit 16 that can input the electrolyte solution 14 into the electrode unit 12 when a predetermined event occurs, and a chemical reaction ( For example, it has the transmission part 18 which transmits the electrical energy produced by oxidation / reduction reaction as a physical means.

  The electrode unit 12 includes, for example, a positive electrode unit 20, a negative electrode unit 22, and a separator 24 disposed between the positive electrode unit 20 and the negative electrode unit 22.

  The positive electrode part 20 is composed of a positive electrode current collector 26. The positive electrode current collector 26 includes, for example, a positive electrode active material (a material that receives electrons) 26A and a conductive material 26B.

  The negative electrode part 22 includes a negative electrode current collector 28. The negative electrode current collector 28 is composed of, for example, a negative electrode active material (a material that emits electrons) 28A. The negative electrode current collector 28 may include other conductive materials (not shown) in addition to the negative electrode active material (material that emits electrons) 28A.

  The separator 24 is disposed between the positive electrode portion 20 and the negative electrode portion 22 in a state where they are appropriately in contact with each other. The separator 24 serves to prevent a short circuit between the positive electrode portion 20 side and the negative electrode portion 22 side, and to suck up the electrolyte solution 14 and hold the electrolyte solution 14.

  Although it does not specifically limit as the separator 24, For example, a polyethylene fiber, a polypropylene fiber, glass fiber, a resin nonwoven fabric, a glass nonwoven fabric, a filter paper etc. can be used.

  The lead wire 20A connected to the terminal on the positive electrode portion 20 side and the lead wire 22A connected to the terminal on the negative electrode portion 22 side prevent the inflow and outflow of electrons due to the reduction reaction and oxidation reaction that occur in the positive electrode portion 20 and the negative electrode portion 22. This is an area provided for outputting to the transmitter 18 in the form of current.

The electrolytic solution 14 has a role of eluting ions generated on the negative electrode part 22 side and supplying water (H ₂ O) that reacts with oxygen to the positive electrode part 20 side. As the electrolytic solution 14, an acidic, alkaline, or neutral aqueous solution can be used. For example, at least one selected from the group consisting of a sodium chloride aqueous solution, a sodium hydroxide aqueous solution, a sodium hydrogen carbonate aqueous solution, and a sodium percarbonate aqueous solution can be used. Alternatively, an aqueous solution of fluoride, an aqueous solution containing halogen, or the like can be used. Alternatively, an aqueous solution of polyvalent carboxylic acid as disclosed in JP 2010-182435 A can be used. As the electrolytic solution 14, for example, water or salt water can be used.

  The electrolytic solution charging unit 16 maintains the separated state of the electrode unit 12 and the electrolytic solution 14 in a normal state, and allows the electrolytic solution 14 to be charged into the electrode unit 12 when a predetermined event occurs. . In other words, the electrolytic solution feeding unit 16 does not feed the electrolytic solution 14 to the electrode unit 12 in a normal state, and feeds the electrolytic solution 14 to the electrode unit 12 only when a predetermined event occurs. For this reason, the electrolyte solution 14 contacts the electrode part 12 only when a predetermined event occurs. Thereby, the electrode part 12 is immersed in the electrolyte solution 14.

  Here, “normal” means a time other than when a predetermined event occurs. In addition, the “predetermined event” refers to, for example, a natural disaster such as an earthquake, storm, heavy snow, heavy rain, flood, storm surge, etc., or a predetermined acceleration or the like in application of external force from a user (human). Means a situation that acts on

  In particular, in a configuration in which the battery is activated by applying external force from the user (human), the battery activation device 10 can be operated at a timing convenient for the user.

  The transmitting unit 18 includes a load unit 30 connected to the lead wire 20A on the positive electrode unit 20 side and the lead wire 22A on the negative electrode unit 22 side, and an output unit 32. The load unit 30 receives inflow and outflow of electrons due to the reduction reaction or oxidation reaction occurring in the positive electrode unit 20 or the negative electrode unit 22 in the form of current, and generates physical means based on the current generated by the oxidation / reduction reaction. Circuit. The output unit 32 includes a circuit for outputting the physical means generated by the load unit 30. Thereby, the transmission part 18 can transmit the electrical energy produced by the chemical reaction (for example, oxidation / reduction reaction) of the electrode part 12 as a physical means.

  Note that the load unit 30 and the output unit 32 are not limited to being configured separately, and may be a single circuit, for example.

  The “physical means” means, for example, a medium generated by using an electric current generated by an oxidation / reduction reaction of a battery. For example, the medium is output to the outside using a wireless medium. Here, the wireless medium generally means radio waves, infrared rays, visible light, sound waves, ultrasonic waves, X-rays, etc., and those excluding the sound waves and ultrasonic waves are called electromagnetic waves. Included in physical means.

Here, a battery can be used for the battery starting device 10, and “magnesium battery” can be improved and applied as an example of the battery. A “magnesium battery” is, for example, a magnesium-air battery, which uses oxygen in the air as a positive electrode active material (a material that receives electrons) and magnesium as a negative electrode active material (a material that emits electrons). is there. Magnesium in the negative electrode part 22 emits electrons and becomes magnesium ions and is eluted in the electrolytic solution. On the other hand, in the positive electrode part 20, oxygen and water receive electrons and become hydroxide ions. When the battery is viewed as a whole, an electromotive force is generated between the _two electrodes as magnesium hydroxide (Mg (OH) ₂ ) is generated from magnesium, oxygen, and water. By improving a so-called magnesium battery as a battery, it can be easily obtained at low cost, and the battery can be reliably started when a predetermined event occurs.

Each reaction formula in the positive electrode part 20 and the negative electrode part 22 is as follows.
Positive electrode part: O ₂ + 2H ₂ O + 4e ⁻ → 4OH ⁻
Negative electrode portion: 2Mg → 2Mg2 ⁺⁺ 4e ⁻
Entire battery: 2Mg + O ₂ + 2H ₂ O → 2Mg (OH) ₂ ↓

Furthermore, the following side reaction is considered to have occurred.
Mg + 2H ₂ O → Mg ²⁺ + 2OH ⁻ + 2H ₂ ↑

  The positive electrode portion 20 has a role of supplying electrons to oxygen in the air. The material of the positive electrode part 20 is not particularly limited as long as it is a conductive material. For example, a carbonaceous material such as activated carbon, carbon fiber, or carbon felt, or a metal material such as iron or copper is used. Can do. As the material of the positive electrode part 20, it is particularly preferable to use carbon powder from the viewpoint of a large contact area with oxygen in the air and excellent current collection efficiency. In FIG. 1, as an example, a copper net is used for the positive electrode active material 26A, and activated carbon is used for the conductive material 26B.

  You may attach the wire etc. which consist of electroconductive materials, such as copper, with respect to the surface by the side of the positive electrode part 20 which contact | connects air. Thereby, it is possible to increase the contact area of oxygen and the positive electrode part 20, and can further improve the current collection efficiency in the positive electrode part 20 of a battery.

  The negative electrode active material 28A of the negative electrode part 22 is made of, for example, a magnesium alloy. The magnesium alloy is an alloy containing magnesium (Mg) as a main component, for example, an alloy containing 50% by weight or more of magnesium. As the magnesium alloy, for example, Mg—Al, Mg—Mn, Mg—Zn, Mg—Al—Zn, Mg—Zn—Zr, etc. are known, and moreover, aluminum (Al) It is also possible to use a magnesium alloy containing calcium (Ca).

  Elements other than aluminum and calcium may be added to the magnesium alloy. For example, other elements such as Zn, Mn, Si, Cu, Li, Na, K, Fe, Ni, Ti, and Zr may be added. These elements can be added at a ratio of, for example, 1% by weight or less with respect to the entire magnesium alloy. In particular, Zn can be added at a ratio of, for example, 2% by weight or less with respect to the entire magnesium alloy.

  The shape of the magnesium alloy used as the negative electrode portion 22 is not particularly limited, and for example, a magnesium alloy processed into a plate shape, a granular shape, or a powder shape can be used.

  In the magnesium battery, for example, a magnesium alloy containing aluminum (Al) and calcium (Ca) can be used. A magnesium alloy having such a composition has appropriate reactivity and is excellent as a battery material. Moreover, the magnesium alloy of such a composition has the capability to suppress combustion (ability to suppress reaction), and is highly valuable as an industrial material. The magnesium alloy can exhibit excellent performance as a battery material due to the synergistic effect of these conflicting characteristics.

A magnesium alloy containing aluminum and calcium usually has a multilayer structure composed of two phases of a metallic Mg phase (solid solution) and a compound phase (Al ₂ Ca). Because the compound phase is relatively inert, the alloy is less reactive macroscopically. This is confirmed by experience. Moreover, when this multiphase structure is sufficiently fine, the corrosion reaction (dissolution reaction) becomes uniform as a whole and proceeds gently. This is also presumed to play a role in the reactivity and the reaction suppressing ability. That is, it is thought that the reaction suppression by the highly reactive mother phase and the inert second phase of the magnesium alloy greatly contributes to the excellent performance as the negative electrode material of the battery.

  In addition, the arrangement | sequence of the positive electrode part 20, the separator 24, and the negative electrode part 22 which are shown in FIG. 1 shows an example, and is not specifically limited.

  The battery used for the battery starting apparatus 10 is not limited to a magnesium battery. For example, it is possible to use a battery including a metal pair that is a pair of substances constituting the battery and a metal pair in which other electrons move in one direction, such as copper, zinc and copper.

  Next, the place and location where the battery starting device according to the embodiment of the present invention is applied will be considered. For example, there are buildings, vehicles (planes, ships, trains), social infrastructure, and natural objects. Examples of social infrastructure include bridges, tunnels, and dams. Natural objects include bedrock, river beds, harbor areas, construction sites, and so on.

  For example, in the case of a building, an earthquake or storm occurs and the house shakes greatly, but after the earthquake or storm passes, the house is not damaged. However, an excessive load may act on the structural member of the house at the timing when the maximum acceleration is generated, and a crack may be generated inside the structural member. In such a case, there is clearly a risk, but it cannot usually be determined. Therefore, if it is left as it is, the risk increases. It is preferable to install the battery activation device 10 of the present invention so that the electrolytic solution charging unit 16 is located at a mechanically important point (for example, a place where the maximum acceleration occurs) in such a structural member of the house.

  For example, in the case of heavy snow, heavy snow accumulates on the roof of the house. Even if it snows, static load continues to act on the house for a certain period of time. There are cases where houses collapse when heavy snow falls overnight. Moreover, even if it does not collapse, the durability of the house is weakened by repeating such a situation every year. Even though I thought there was no problem last year, the durability of the house has actually declined, and there is a possibility that it will collapse with less snow than last year. Therefore, if it is left as it is, the risk increases. In such a house, the relative change between the structure that supports the roof load and the structure that does not support the load is displaced by the load. Even if this displacement is slight, the force acting on it increases. When the displacement exceeds a predetermined value, it is preferable to install the battery activation device 10 of the present invention so that the electrolyte charging unit 16 is positioned at a point where this force acts.

  For example, in the case of heavy rains, floods, and storm surges, these damages are significant. For example, even if there is no direct damage to the house, water may pass through the invisible channel and enter the floor and stay there. In addition, water inside the soil may be introduced into the house by capillary action. If left as it is, the house will be the same as when it is built on the pond, and the room will be highly humid, which will encourage the growth of mold and termites. Therefore, if it is left as it is, the risk increases. It is preferable to install the battery activation device 10 of the present invention so that the electrolytic solution charging unit 16 is located at a point where such natural natural water can be used as the electrolytic solution.

  For example, in the case of bridges, there are many such as road bridges and railway bridges. The bridge girder and abutment of these bridges are often fixed with bolts or the like. In the case of a road bridge, a large load is applied as a large vehicle passes, and the bolt may be damaged. Therefore, if it is left as it is, the risk increases. In such a case, it is preferable to install the battery activation device 10 of the present invention so that the electrolyte charging unit 16 is located at a point that receives a force from the bridge structure.

  According to the battery activation device 10 and the risk management method of the above embodiment, risk management can be executed over a long period of time with a simple configuration and low cost. In addition, an accident or the like can be prevented in advance by notifying the surroundings of the state in which the danger has become apparent.

  Next, each Example of the battery starting apparatus 10 of this invention is described. About the electrolyte solution injection | throwing-in part 16, it is implement | achieved by the structure shown in each following Example. In addition, the same code | symbol is attached | subjected to the structure which overlaps.

(First embodiment)
A first embodiment will be described. In the following embodiments, “normal” and “in a static state” are used with the same meaning and content.

  In the first embodiment, as shown in FIGS. 2 and 3, the battery activation device 10 has a box-shaped housing 34. An electrode storage portion 36 is provided at the lower portion of the housing 34. The electrode unit 12 is disposed inside the electrode storage unit 36. In addition, the transmitter 18 protected by a protective container 38 is disposed inside the electrode storage unit 36. The protective container 38 is provided with a seal structure so that the electrolyte solution 14 does not enter the inside, and the transmitter 18 is configured not to be submerged by the electrolyte solution 14. Further, the protective container 38 has a predetermined strength and also has a function of preventing a collision of the breaking portion 44 against the transmitting portion 18. In addition, the volume of the electrode accommodating part 36 is not specifically limited, It can set suitably.

  The electrode housing part 36 is configured by a space part surrounded by the housing 34 and the partition part 42. In addition, the electrode storage unit 36 is provided with a deterioration preventing means for preventing condensation from occurring due to humidity, temperature, or the like in the installation environment or preventing the electrode unit 12 from being oxidized.

  As the deterioration preventing means, for example, an active gas such as argon or nitrogen can be enclosed in the electrode housing portion 36. In addition, a chemical substance that absorbs moisture, a desiccant, or the like may be disposed inside the electrode housing portion 36. Furthermore, the air pressure inside the electrode storage unit 36 may be maintained higher than the external air pressure so that external air does not flow into the inside. As a result, it is possible to prevent moisture from coming into contact with the electrode portion 12 housed in the electrode housing portion 36 or being deteriorated due to oxidation under the influence of the installation environment such as humidity and temperature. As a result, it is possible to prevent the battery from being erroneously activated or defectively activated when a predetermined event has not occurred.

  An electrolyte storage unit 40 is provided above the housing 34 and above the electrode storage unit 36. The electrolyte solution 14 is stored inside the electrolyte solution storage section 40. In addition, the volume of the electrolyte storage part 40 is not specifically limited, It can set suitably.

  The electrolyte storage unit 40 is configured by a space surrounded by the casing 34, the partition unit 42, and the cylindrical unit 46. For this reason, it is possible to prevent the electrolyte solution 14 from leaking outside the electrolyte solution storage unit 40 when the electrolyte solution 14 is stored in the electrolyte solution storage unit 40 in a normal state.

  Here, the electrode storage portion 36 and the electrolyte solution storage portion 40 are partitioned by a partition portion 42 having a predetermined seal structure. For this reason, the electrolytic solution 14 in the electrolytic solution storage part 40 does not enter the electrode storage part 36 via the partition part 42 in normal times. In addition, when a predetermined event occurs, the destruction unit 44 collides with the division unit 42, so that at least a part of the division unit 42 is destroyed. Therefore, the electrolytic solution 14 stored in the electrolytic solution storage unit 40 leaks to the outside and enters the electrode storage unit 36. Thereby, the electrode part 12 is submerged by the electrolytic solution 14.

  The partition portion 42 is set to have such a strength that at least a part thereof can be broken by the collision of the breaking portion 44. The partition part 42 may be formed integrally with the cylindrical part 46, or may be formed separately and watertightly connected by a predetermined connecting means. The partition part 42 is formed with glass etc. as an example.

  Further, in the vicinity of the electrolytic solution storage section 40, a cylindrical section 46 is provided that is configured to extend vertically and guides the movement (for example, a drop movement) of the destruction section 44. For example, two space portions 50 and 52 are provided inside the cylindrical portion 46. The two space portions 50 and 52 are partitioned by a partition adjusting member 48 that can move in the axial direction of the tubular portion 46 by a known adjusting mechanism or adjusting structure such as a slide means.

  The two space portions 50 and 52 are configured by a first space portion 50 and a second space portion 52. The first space part 50 is located above the second space part 52. Inside the first space portion 50, a holding portion 54 that can hold a destruction portion 44 described later is disposed. The holding part 54 is comprised with the magnet, for example.

  The second space portion 52 is located below the first space portion 50. Inside the second space part 52, the destruction part 44 is arranged. The destruction part 44 is formed in a spherical shape, and is made of, for example, a magnetic material. As an example of the magnetic body, there are metal, iron, and the like that are attracted to a magnet. When the destruction part 44 is comprised with the magnetic body, the destruction part 44 receives the magnetic force from the holding part 54 at the time of a static state, and is hold | maintained in the air.

  The outer peripheral surface of the breaking portion 44 may be configured to be able to contact the inner peripheral surface of the cylindrical portion 46, or may be configured to be separated from the inner peripheral surface of the cylindrical portion 46. In particular, in the configuration in which the outer peripheral surface of the breaking portion 44 is separated from the inner peripheral surface of the cylindrical portion 46, no resistance force (for example, friction force) is received from the cylindrical portion 46 during the movement of the breaking portion 44. Therefore, the energy loss of the potential energy of the destruction part 44 can be suppressed.

  The partition adjustment member 48 is, for example, a plate-like member that allows magnetic force to pass therethrough, and is configured to be movable in the axial direction of the tubular portion 46 by the well-known adjustment mechanism or adjustment structure described above. The partition adjustment member 48 has a function of moving in the axial direction of the cylindrical portion 46 and adjusting the separation distance between the holding portion 54 and the breaking portion 44. For this reason, by adjusting the position of the partition adjusting member 48, the distance between the holding portion 54 and the breaking portion 44 can be shortened or lengthened.

  The lowermost part of the cylindrical part 46 is connected to the partition part 42 in a watertight manner. The cylindrical part 46 and the electrolyte solution storage part 40 are completely partitioned, and the electrolyte solution 14 of the electrolyte solution storage part 40 is configured not to enter the inside of the cylindrical part 46.

  Further, an attracting portion 56 for attracting the breaking portion 44 is detachably disposed in the vicinity of the first space portion 50, for example, on the upper surface of the housing 34. The attracting portion 56 is made of, for example, a magnet. The attracting portion 56 is a reinforcing portion for holding the breaking portion 44 so as not to collide with the partition portion 42 even when a predetermined acceleration acts on the breaking portion 44.

  Here, the magnitude relationship between the magnetic force of the attracting part 56 and the magnetic force of the holding part 54 is determined in consideration of the extent to which the breaking part 44 does not move when a large impact force or acceleration acts on the breaking part 44. Specifically, it is determined based on the magnitudes of acceleration, inertial force, and the like received by the breaking portion 44 when a large impact force or acceleration is applied to the breaking portion 44. For this reason, for example, the magnetic force of the attracting part 56 may be set so as to be larger than the magnetic force of the holding part 54, or may be set so as to be smaller. By separately providing an attracting portion 56 having a predetermined magnetic force, when the battery activation device 10 is not used, the breaking portion 44 moves and breaks the partition portion 42 when a large impact force or acceleration acts on the breaking portion 44. Can be prevented.

  According to the first embodiment, the attracting portion 56 is installed on the upper surface of the housing 34 when not in use before installing the battery activation device 10. As a result, the breaking portion 44 inside the cylindrical portion 46 is strongly held by two magnetic forces, the magnetic force from the holding portion 54 and the magnetic force from the attracting portion 56. For this reason, even when a large impact force or acceleration is applied to the battery activation device 10 when not in use, the destruction portion 44 does not move and the partition portion 42 is not destroyed.

  Next, at the time of use after installing the battery activation device 10, the attracting part 56 is removed from the upper surface of the housing 34. At this time, the breaking portion 44 is held at a predetermined position only by the magnetic force of the holding portion 54. The holding unit 54 has a predetermined potential energy.

  In FIG. 2, the predetermined potential energy is indicated by, for example, mgh. However, m: Mass of a destruction part, g: Gravitational acceleration, h: It is the distance in the vertical direction from the destruction part currently hold | maintained to a division part.

In a state where the breaking portion 44 is held by the holding portion 54 at a predetermined position (that is, a static state), when the attractive force from the holding portion 54 is F, the following (Equation 1) is always established.
F> mg (Formula 1)
m: mass of fractured part g: acceleration of gravity

Next, at a moment when a predetermined event occurs and the vibration acceleration a in the vertical direction (opposite to the gravitational direction) toward the holding portion 54 acts on the destruction portion 44 and the destruction portion 44 moves (falls), The following (Formula 2) is established.
F = mg + ma (Formula 2)
m: Mass of the fractured part g: Gravity acceleration a: Vibration acceleration acting on the fractured part

  In (Expression 2), inertial force generated by the vibration acceleration a acts on the breaking portion 44 in addition to gravity. Here, when vibration acceleration in a direction opposite to the direction of gravity occurs, the inertial force acts as a force opposite to the direction of vibration acceleration, so the inertial force acts in the same direction as the gravity direction.

For this reason, the vibration acceleration A when transmitting a physical means from the transmission part 18 can be determined by the following (Formula 3).
A = (F / m) -g (Formula 3)

  Here, the vibration acceleration A when the physical means is transmitted from the transmitting unit 18 can be easily set by adjusting the attractive force F from the holding unit 54.

  The attractive force F from the holding portion 54 can be easily adjusted by the partition adjusting member 48 moving along the axial direction of the cylindrical portion 46. For example, as the partition adjustment member 48 moves away from the holding portion 54, the distance between the holding portion 54 and the breaking portion 44 becomes longer, so that the attractive force F (magnetic force) acting on the breaking portion 44 from the holding portion 54 becomes smaller. Conversely, as the partition adjustment member 48 approaches the holding portion 54, the separation distance between the holding portion 54 and the breaking portion 44 is shortened, so that the attractive force F (magnetic force) acting on the breaking portion 44 from the holding portion 54 increases. In this way, the vibration acceleration A when the physical means is transmitted from the transmitter 18 is determined in advance by adjusting the position of the partition adjustment member 48.

  Next, when a predetermined event occurs and an acceleration greater than or equal to the vibration acceleration A acts on the breaking portion 44, (Equation 2) is established, and the breaking portion 44 counters the attractive force from the holding portion 54. However, it moves (drops) toward the partition part 42. And the destruction part 44 collides with the division part 42, and at least one part of the division part 42 is destroyed.

Here, immediately before the destruction part 44 collides with the partition part 42, the destruction part 44 has predetermined kinetic energy. In FIG. 2, if the influence of the internal resistance of the cylindrical portion 46 (friction force, air resistance, etc. due to contact with the cylindrical portion 46) is ignored as the predetermined kinetic energy, (1/2) mv ² Indicated by Where m is the mass of the destroyed part, and v is the speed of the destroyed part immediately before colliding with the partition part.

The kinetic energy of the destruction part 44 is equal to the potential energy when it is held at a predetermined position by the holding part 54 according to the energy conservation law, and the following (Equation 4) is established.
(1/2) mv ² = mgh (Formula 4)

According to (Expression 4), the momentum mv of the destruction portion 44 immediately before the destruction portion 44 collides with the partition portion 42 is expressed by the following (Expression 5).
mv = m (2gh) ^1/2 (Formula 5)

  The destruction part 44 collides with the partition part 42 with this momentum. And the intensity | strength of the division part 42 is set so that at least one part may be destroyed in response to the said momentum of the destruction part 44. FIG.

  Here, as shown in FIG. 4, a stress concentration portion 58 is formed in advance in at least a part of the partition portion 42 or in the vicinity thereof, so that when the fracture portion 44 collides with the partition portion 42, the stress concentration portion 58. The stress concentrates on the surface and becomes the starting point of fracture, and cracks and the like are likely to occur. And the division part 42 becomes easy to be destroyed. Thereby, when a predetermined event occurs, it can be activated as a battery to reliably notify the risk, and the reliability of the apparatus can be improved. In addition, as the stress concentration part 58, for example, a thin part, specifically, a hole part, a groove part, a notch or the like can be provided.

  As described above, when a predetermined event occurs and vibration acceleration equal to or greater than vibration acceleration A acts on the casing 34 or the destruction portion 44 of the battery activation device 10, the destruction portion 44 moves and collides with the partition portion 42. Then, at least a part of the partition part 42 is destroyed.

  In particular, when the breaking part 44 collides with the partition part 42, the kinetic energy obtained by converting the potential energy of the breaking part 44 when the holding part 54 is held at a predetermined position (in a static state) is transferred to the partition part 42. This acts against at least a part of the partition portion 42. Thus, by using the potential energy of the destruction portion 44 in the static state, the partition portion 42 can be destroyed without applying a special driving force to the destruction portion 44.

  When at least a part of the partition part 42 is destroyed, the electrolytic solution 14 stored in the electrolytic solution storage part 40 leaks and enters the electrode storage part 36. As a result, the electrode unit 12 is submerged, an oxidation / reduction reaction occurs in the electrode unit 12, a current flows, and the battery is activated. Then, physical means is transmitted from the transmitter 18. As a result, not only the surroundings but also a remote third party can be notified of the risk that acceleration greater than the vibration acceleration A has occurred.

(Second embodiment)
A second embodiment will be described. In addition, the same code | symbol is attached | subjected to the structure which overlaps with the structure of 1st Example, and the description is abbreviate | omitted suitably.

  As shown in FIG. 5, the battery activation device 10 according to the second embodiment includes an urging unit 60 for urging the destruction unit 44. The urging unit 60 is provided, for example, on the partition adjusting member 48 and urges the destruction unit 44 that is held at least by the holding unit 54. The urging unit 60 is made of, for example, an elastic member, and specifically a coil spring is used. The urging unit 60 is not limited to a coil spring, and any urging member that applies an elastic force can be applied.

  When a coil spring is used as the urging portion 60, the coil spring is installed between the partition adjustment member 48 and the breaking portion 44 in a state where the coil spring is contracted by a predetermined length X from the natural length of the coil spring. The

In a state where the breaking portion 44 is held by the holding portion 54 (that is, a static state), when the attractive force from the holding portion 54 is F, the following (Equation 6) always holds.
F> mg + kx (Formula 6)
m: Mass of fractured part g: Gravitational acceleration k: Spring constant of biasing part x: Length shortened from natural length of biasing part

Next, at a moment when a predetermined event occurs and the vibration acceleration a in the vertical direction (opposite to the gravitational direction) toward the holding portion 54 acts on the destruction portion 44 and the destruction portion 44 moves (falls), The following (Formula 7) is established.
F = mg + kx + ma (Formula 7)
F: attractive force from the holding part m: mass of the breaking part g: acceleration of gravity k: spring constant of the urging part x: length reduced from the natural length of the urging part a: vibration acceleration acting on the breaking part

  In (Expression 7), in addition to gravity, the inertia force generated by the vibration acceleration a and the elastic force from the urging portion 60 act on the breaking portion 44. Here, the elastic force acts in the same direction as the direction of gravity.

For this reason, the vibration acceleration A when transmitting a physical means from the transmission part 18 can be determined by the following (Formula 8).
A = {(F−kx) / m} −g (Expression 8)

  Here, the vibration acceleration A when the physical means is transmitted from the transmission unit 18 can be easily set by adjusting the attractive force F from the holding unit 54 and the spring constant k. The attractive force F from the holding portion 54 can be easily adjusted by changing the position of the partition adjusting member 48 as described above. Further, since the spring constant k is a spring constant specific to the elastic body, it can be easily adjusted by selecting an elastic body having a predetermined spring constant k.

  Next, when a predetermined event occurs and an acceleration greater than or equal to the vibration acceleration A acts on the breaking portion 44, the breaking portion 44 faces the partition portion 42 while resisting the attractive force from the holding portion 54. Move (drop). And the destruction part 44 collides with the division part 42, and at least one part of the division part 42 is destroyed.

Here, immediately before the destruction part 44 collides with the partition part 42, the destruction part 44 has predetermined kinetic energy. When the influence of a resistance force or the like inside the cylindrical portion 46 (a frictional force or an air resistance force due to contact with the cylindrical portion 46) is ignored as the predetermined kinetic energy, (1/2) mv ² is indicated. Where m is the mass of the destroyed part, and v is the speed of the destroyed part immediately before colliding with the partition part.

As for the kinetic energy of the destruction part 44, the following (formula 9) is established according to the energy conservation law.
(1/2) mv ² = mgh + (1/2) kx ² (Equation 9)
m: Mass of the destruction part g: Gravitational acceleration h: Distance in the vertical direction from the center of gravity position of the destruction part being held to the partition part v: Speed of the destruction part immediately before colliding with the partition part k: Spring of the biasing part Constant x: Length reduced from the natural length of the biasing part
(1/2) kx ² : Elastic energy of the biasing part

According to (Equation 9), the momentum mv of the destruction portion 44 immediately before the destruction portion 44 collides with the partition portion 42 is expressed by the following (Equation 10).
mv = m {2gh + (k / m) x ² } ^1/2 (Formula 10)

  Comparing the momentum of the breaking portion 44 of the second embodiment with the momentum of the breaking portion 44 of the first embodiment, the momentum of the breaking portion 44 of the second embodiment becomes larger. The destruction part 44 collides with the partition part 42 with this large momentum. And the intensity | strength of the division part 42 is set so that at least one part may be destroyed in response to the said momentum of the destruction part 44. FIG.

  According to the second embodiment, the provision of the urging unit 60 increases the momentum immediately before the destruction unit 44 collides with the partition unit 42. For this reason, the destructive force of the destruction part 44 increases, and at least a part of the partition part 42 is easily and reliably destroyed. As a result, when a predetermined event occurs, the battery can be reliably started and the risk can be reliably notified. In other words, the reliability of the battery activation device 10 can be improved.

  In the second embodiment, when installing the battery activation device in the horizontal direction, the vibration acceleration A, which is a risk, is determined by adjusting the spring constant and the position of the partition adjustment member with g = 0. be able to.

(Third embodiment)
A third embodiment will be described. In addition, the same code | symbol is attached | subjected to the structure which overlaps with the structure of 1st Example, and the description is abbreviate | omitted suitably.

  As shown in FIG. 6, the battery activation device 10 of the third embodiment is provided with an attracting portion 62 for attracting the destruction portion 44 toward the partition portion 42 side. The invitation part 62 is arrange | positioned on the division part 42, for example. In particular, the attracting part 62 is arranged at a position where the distance between the destroying part 44 and the attracting part 62 becomes shorter as the destroying part 44 moves toward the partition part 42 side. The attracting part 62 is composed of, for example, a magnet having a predetermined magnetic force.

In a state where the breaking portion 44 is held by the holding portion 54 (that is, a static state), if the attractive force from the holding portion 54 is F and the attractive force from the attracting portion 62 is Y, the following (Equation 11) is always To establish.
F> mg + Y (Formula 11)
m: mass of fractured part g: acceleration of gravity

  Here, in a state in which the breaking portion 44 is held by the holding portion 54, since the separation distance between the breaking portion 44 and the attracting portion 62 is relatively long, the attracting portion 62 attracts the breaking portion 44. The attractive force Y decreases in inverse proportion to the square of the separation distance.

Next, at a moment when a predetermined event occurs and the vibration acceleration a in the vertical direction (the direction opposite to the gravitational direction) toward the holding unit 54 acts on the destruction unit 44 and the destruction unit 44 moves (falls). The following (Formula 12) is established. However, the influence of the resistance force of air and the frictional force from the cylindrical portion 46 is ignored.
F = mg + Y + ma (Formula 12)
F: attractive force from the holding part m: mass of the breaking part g: gravitational acceleration Y: attractive force from the drawing part a: vibration acceleration acting on the breaking part

  In (Equation 12), in addition to gravity, the inertia force generated by the vibration acceleration a and the attractive force Y from the attracting portion 62 act on the breaking portion 44. Here, the attractive force Y from the attracting portion 62 acts in the same direction as the direction of gravity.

For this reason, the vibration acceleration A when transmitting a physical means from the transmission part 18 can be determined by the following (Formula 13).
A = {(F−Y) / m} −g (Expression 13)

  Here, the vibration acceleration A when the physical means is transmitted from the transmitting unit 18 is easily set by adjusting the attractive force F from the holding unit 54 and the attractive force Y from the attracting unit 62. Can do. The attractive force F from the holding portion 54 can be easily adjusted by changing the position of the partition adjusting member 48 as described above. Further, the attractive force Y from the attracting part 62 can be easily adjusted by selecting the distance from the breaking part 44 held by the holding part 54 or the optimum magnitude of the magnetic force.

  Next, when a predetermined event occurs and an acceleration greater than or equal to the vibration acceleration A acts on the breaking portion 44, the breaking portion 44 moves toward the partition portion 42 against the attractive force from the holding portion 54 ( Fall). Here, as the destruction part 44 moves (drops), the separation distance between the destruction part 44 and the attracting part 62 becomes shorter. For this reason, as the breaking part 44 moves (drops), the attractive force (magnetic force) acting on the breaking part 44 from the attracting part 62 gradually increases. And the speed of the destruction part 44 just before the destruction part 44 collides with the division part 42 becomes the maximum. The destruction part 44 collides with the partition part 42 at this maximum speed, and at least a part of the partition part 42 is destroyed.

  According to the third embodiment, by providing the attracting part 62, the speed immediately before the destruction part 44 collides with the partition part 42 can be set to the maximum speed. The momentum of the part 44 increases. For this reason, the destructive force of the destruction part 44 increases, and at least a part of the partition part 42 is easily and reliably destroyed. As a result, when a predetermined event occurs, the battery can be reliably started and the risk can be reliably notified. In other words, the reliability of the battery activation device 10 can be improved.

  The first to third embodiments described above are based on the dynamic principle when the vibration acceleration acting along the vertical direction (the direction opposite to the gravity direction) is generated.

  Next, a third embodiment will be described as an example of the mechanical principle when vibration acceleration occurs along a horizontal direction substantially orthogonal to the vertical direction.

  As shown in FIG. 7, the battery starting device 10 is set to be inclined by θ from the horizontal direction. At this time, the horizontal component due to the gravity of the breaking portion 44 is mg · sin θ. Here, m is the mass of the fracture portion, g is the gravitational acceleration, and θ is the angle of inclination from the horizontal direction.

In a state where the breaking portion 44 is held by the holding portion 54 (that is, a static state), if the attractive force from the holding portion 54 is F and the attractive force from the attracting portion 62 is Y, the following (Equation 14) is always It is established.
F> mg · sin θ + Y (Formula 14)
F: attractive force from the holding part Y: attractive force from the attracting part m: mass of the fracture part g: gravitational acceleration θ: angle of inclination from the horizontal direction

Next, at the moment when a predetermined event occurs and a predetermined vibration acceleration a along the horizontal direction toward the holding unit 54 acts on the destruction unit 44 and the destruction unit 44 moves (falls), the following ( Equation 15) holds.
F = mg · sin θ + Y + mg · acos θ (Formula 15)
F: attractive force from the holding part Y: attractive force from the attracting part m: mass of the breaking part g: gravitational acceleration a: vibration acceleration acting on the breaking part

  In (Equation 15), in addition to gravity, the inertia force generated by the vibration acceleration a and the attractive force from the attracting portion 62 act on the breaking portion 44.

For this reason, the vibration acceleration A when transmitting a physical means from the transmission part 18 can be determined by the following (Formula 16).
A = [{(F−Y) / mg} −sin θ] / cos θ (Expression 16)

  Here, the vibration acceleration A when the physical means is transmitted from the transmitting unit 18 is easily set by adjusting the attractive force F from the holding unit 54 and the attractive force Y from the attracting unit 62. Can do.

  In particular, by providing the attracting part 62, the speed of the breaking part 44 immediately before colliding with the partition part 42 becomes the maximum speed, so that the momentum of the breaking part 44 immediately before the collision with the partition part 42 increases. For this reason, the destructive force of the destruction part 44 increases, and at least a part of the partition part 42 is easily and reliably destroyed.

  Further, in the battery activation device 10, the urging unit 60 and the attracting unit 62 may be combined, or a configuration in which the stress concentration unit 58 is provided in the partition unit 42 may be employed. That is, the contents and elements of the first to third embodiments can be combined as appropriate.

  Each of the above-described embodiments is merely an example, and the present invention is not limited to the contents of the embodiment.

DESCRIPTION OF SYMBOLS 10 Battery starter 12 Electrode part 14 Electrolyte solution 16 Electrolyte injection part 18 Transmitter part 20 Positive electrode part 22 Negative electrode part 24 Separator 26 Positive electrode collector 26A Positive electrode active material 26B Conductive material 28 Negative electrode collector 28A Negative electrode active material 30 Load Part 32 output part 34 housing 36 electrode storage part 38 protective container 40 electrolyte solution storage part 42 partition part 44 destruction part 46 cylindrical part 48 partition adjustment member 50 space part (first space part)
52 Space (second space)
54 holding part 56 attracting part 58 stress concentrating part 60 biasing part 62 attracting part

Claims (7)

A battery activation device that activates a battery when a predetermined event occurs,
An electrode storage section for storing the electrode section;
An electrolytic solution storage unit for storing the electrolytic solution;
A cylindrical part provided inside the electrolyte storage part;
A partition section that partitions the electrode storage section and the electrolyte storage section;
A breaking portion provided inside the cylindrical portion, made of a magnetic material, colliding with the partitioning portion and capable of breaking at least a portion;
Provided inside the cylindrical part, composed of a magnet, holding the destruction part at a predetermined position in normal times, and receiving the inertial force generated at the destruction part when a predetermined event occurs, A holding part that is movable to the partition part side;
It is arranged inside the cylindrical part and between the holding part and the destruction part, and adjusts the separation distance between the holding part and the destruction part by moving along the axial direction of the cylindrical part. A partition adjusting member capable of adjusting the magnitude of the magnetic force generated between the holding portion and the breaking portion,
Have
The electrolytic solution is inside the electrolytic solution storage part, and is stored between the tubular part and the partition part,
The battery activation device, wherein the destruction portion collides with the partition portion and destroys at least a part thereof, thereby allowing the electrolyte solution to contact the electrode portion.   At least a part of the partitioning part is caused to act on the partitioning part by applying kinetic energy obtained by converting potential energy when the breaking part collides with the partitioning part to be held at a predetermined position by the holding part. The battery starting device according to claim 1, wherein the battery starting device is destroyed.   3. The battery starting device according to claim 1, further comprising a biasing portion that is configured by an elastic body and biases the breaking portion toward the partition when being held by the holding portion.   4. The battery starting device according to claim 1, further comprising an attracting portion that is made of a magnet and draws the destruction portion toward the partitioning portion. 5.   5. The electrode storage unit according to claim 1, further comprising a deterioration preventing means for preventing condensation in the electrode storage unit or oxidation of the electrode unit. The battery starting apparatus as described in. Wherein the partition part, the battery activation device according to any one of claims 1 to 5, characterized in that the stress concentration portion to promote the destruction by collision of the breaking portion is provided.   The battery starting device according to any one of claims 1 to 6, wherein the electrode portion includes a pair of metals in which electrons move in one direction.

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