High temperature detection device, mechanical parts, coke oven mobile device, and high temperature detection method

Abstract

The present invention provides a high-temperature detection device, a mechanical component, a coke oven mobile device, and a high-temperature detection method that can detect when a target object has reached a high temperature and output a predetermined value, even in a high-temperature environment. [Solution] A high-temperature detection device 10 for detecting when a detection target W has reached a predetermined high-temperature state, comprising: a rubber battery 14 that generates electricity when a positive electrode 12 and a negative electrode 13 are in contact with an electrolyte-containing rubber 11 containing an electrolyte solution; a spacer 15 that, under normal conditions, positions the negative electrode 13 at a distance from the electrolyte-containing rubber 11 to keep the rubber battery 14 in a non-power-generating state; and an electric output means 16 that is energized by the power generated by the rubber battery 14 and produces a predetermined output. The spacer 15 deforms when the detection target W reaches a predetermined temperature or higher, causing the negative electrode 13 to move relative to the electrolyte-containing rubber 11 and come into contact with it, thereby causing the rubber battery 14 to generate electricity.

Description

Technical Field

[0001] The present invention relates to a high-temperature detection device that detects that a detection target has reached a high-temperature state, a machine part including the same, a traveling machine for a coke oven including the machine part, and a high-temperature detection method.

Background Art

[0002] In a belt conveyor, a belt moves by rotation of a plurality of rollers rotatably attached to bearing portions, respectively, to convey an object. When a roller with abnormal rotation occurs due to a defect in the bearing portion or the like, as described in Patent Document 1, frictional heat is generated between the corresponding roller and the belt, and there is a risk that this heat is transmitted to the belt and causes ignition. On the other hand, Patent Document 1 describes a mechanism in which a color and a pattern whose appearance changes according to the rotation speed of the roller are provided on the side surface of each roller, so that a roller with abnormal rotation can be visually recognized.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in order to adopt the mechanism described in Patent Document 1, it is necessary that the corresponding equipment is designed so that the side surfaces of all the rollers can be visually recognized. Further, when the belt conveyor is installed outdoors, or when a large amount of dust is generated even indoors, fine particles, dust, etc. adhere to the side surface of the roller, and the side surface of the roller cannot be visually recognized.

[0005] In this regard, since rollers experiencing rotational abnormalities tend to have a rising temperature in the bearing area to which the roller is attached, if a device is used that detects when the bearing area becomes hot and the electric device (hereinafter also referred to as "electric output device") outputs a predetermined output (such as generating an alarm sound or outputting an abnormal signal), it is possible to detect the rotational abnormality of the roller without visually inspecting the side of the roller.

[0006] However, there was a limitation: if the installation environment of the belt conveyor exceeded the upper limit temperature at which dry cell batteries could be used, dry cell batteries could not be used to supply power to the electric output unit. In this case, conventional alkaline dry cell batteries often have an operating temperature range of 5°C to 45°C, and for example, conventional alkaline batteries cannot be used in a 60°C atmosphere. Furthermore, since the bearing part itself becomes hot, it is not desirable to place dry cell batteries with an operating temperature of 45°C or lower in its vicinity.

[0007] Furthermore, the objects to be detected when they reach a high temperature vary depending on the site, and are not limited to the bearings of the belt conveyor. For example, various mechanical parts used in the moving parts of the belt conveyor, such as rollers, gears, belts, and chains, may be used as detection targets. Also, the detection targets are not limited to tangible objects, but may include intangible substances such as gases and liquids.

[0008] The present invention has been made in view of these circumstances, and aims to provide a high-temperature detection device, a machine part, a coke oven mobile, and a high-temperature detection method that can detect when a target has reached a high temperature and output a predetermined value, even in a high-temperature environment. [Means for solving the problem]

[0009] A high-temperature detection device according to the first invention, which is in line with the above objective, is a high-temperature detection device that detects when a detection target has reached a predetermined high-temperature state, comprising: a rubber battery that generates electricity by having a positive electrode and a negative electrode in contact with an electrolyte-containing rubber containing an electrolyte solution; a spacer that, under normal conditions, positions the negative electrode at a distance from the electrolyte-containing rubber to put the rubber battery in a non-power-generating state; and an electric output means that is energized by the power generated by the rubber battery and produces a predetermined output, wherein the spacer deforms when the detection target reaches a predetermined temperature or higher, causing the negative electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby causing the rubber battery to generate electricity.

[0010] A second high-temperature detection device according to the above-mentioned objective is a high-temperature detection device that detects when a detection target has reached a predetermined high-temperature state, comprising: a rubber battery that generates electricity by having a positive electrode and a negative electrode in contact with an electrolyte-containing rubber containing an electrolyte solution; a spacer that, under normal conditions, positions the positive electrode at a distance from the electrolyte-containing rubber to put the rubber battery in a non-power-generating state; and an electric output means that is energized by the power generated by the rubber battery and produces a predetermined output, wherein the spacer deforms when the detection target reaches a predetermined temperature or higher, causing the positive electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby causing the rubber battery to generate electricity.

[0011] A mechanical component relating to the third invention, which is in line with the aforementioned purpose, is equipped with a high-temperature detection device relating to the first or second invention. A coke oven mobile according to the fourth invention, which is in line with the aforementioned purpose, is equipped with the mechanical parts according to the third invention.

[0012] A fifth high-temperature detection method according to the invention in line with the above-mentioned objective is a high-temperature detection method for detecting when a detection target has reached a predetermined high-temperature state, comprising the steps of: placing the negative electrode of a rubber battery, which generates electricity by contacting an electrolyte-containing rubber containing an electrolyte solution, at a distance from the electrolyte-containing rubber using a spacer, thereby putting the rubber battery into a non-power-generating state; and when the detection target reaches a predetermined temperature or higher, the spacer deforms, causing the negative electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby causing the rubber battery to generate electricity, energizing an electric output means, and causing the electric output means to produce a predetermined output.

[0013] A high-temperature detection method according to the sixth invention in line with the above objective is a high-temperature detection method for detecting when a detection target has reached a predetermined high-temperature state, comprising the steps of: positioning the positive electrode of a rubber battery, which generates electricity by contacting an electrolyte-containing rubber containing an electrolyte solution, at a distance from the electrolyte-containing rubber using a spacer, thereby putting the rubber battery into a non-power-generating state; and when the detection target reaches a temperature above the predetermined temperature, the spacer deforms, causing the positive electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby causing the rubber battery to generate electricity, energizing an electric output means, and causing the electric output means to produce a predetermined output. [Effects of the Invention]

[0014] The high-temperature detection device according to the first invention comprises a rubber battery that generates electricity when its positive and negative electrodes are in contact with an electrolyte-containing rubber containing an electrolyte solution, a spacer that normally positions the negative electrode at a distance from the electrolyte-containing rubber to keep the rubber battery in a non-power-generating state, and an electric output means that is energized by the power generated by the rubber battery and produces a predetermined output. The spacer deforms when the object to be detected reaches a temperature above a predetermined level, causing the negative electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby generating electricity in the rubber battery. This makes it possible to detect that the object to be detected has reached a high temperature and produce a predetermined output even in a high-temperature environment. This is due to the fact that the rubber battery functions normally even in a high-temperature environment.

[0015] The high-temperature detection device according to the second invention is different from the high-temperature detection device according to the first invention in that the positive electrode is arranged at a position having a distance from the electrolyte-containing rubber by a spacer in the normal state, and due to the deformation of the spacer, the positive electrode contacts the electrolyte-containing rubber. Therefore, even in a high-temperature environment, it is possible to detect that the detection target has reached a high-temperature state and perform a predetermined output.

[0016] The mechanical part according to the third invention includes the high-temperature detection device according to the first invention or the second invention, and the moving machine for a coke oven according to the fourth invention includes the mechanical part according to the third invention. Therefore, even in a high-temperature environment, it is possible to detect that the detection target has reached a high-temperature state and perform a predetermined output. Also, since the high-temperature detection methods according to the fifth and sixth inventions respectively correspond to the high-temperature detection devices according to the first and second inventions, even in a high-temperature environment, it is possible to detect that the detection target has reached a high-temperature state and perform a predetermined output.

Brief Description of the Drawings

[0017] [Figure 1] (A) and (B) are explanatory diagrams showing the normal state and the high-temperature detection state of the high-temperature detection device according to the first embodiment of the present invention, respectively. [Figure 2] (A) and (B) are explanatory diagrams showing the normal state and the high-temperature detection state of the high-temperature detection device according to the second embodiment of the present invention, respectively. [Figure 3] (A) and (B) are explanatory diagrams showing the normal state and the high-temperature detection state of the high-temperature detection device according to the third embodiment of the present invention, respectively. [Figure 4] (A) and (B) are explanatory diagrams showing the normal state and the high-temperature detection state of the high-temperature detection device according to the fourth embodiment of the present invention, respectively. [Figure 5] (A) and (B) are explanatory diagrams showing the normal state and the high-temperature detection state of the high-temperature detection device according to the fifth embodiment of the present invention, respectively.

Modes for Carrying Out the Invention

[0018] Next, with reference to the accompanying drawings, embodiments of the present invention will be described to facilitate understanding of the present invention. As shown in FIGS. 1(A) and 1(B), a high-temperature detection device 10 according to a first embodiment of the present invention is a device that detects that a detection target W has reached a predetermined high-temperature state, and includes a rubber battery 14 in which a positive electrode 12 and a negative electrode 13 are in contact with an electrolyte-containing rubber 11 containing an electrolyte solution to generate electricity, a spacer 15 that, in a normal state, disposes the negative electrode 13 at a position having a distance from the electrolyte-containing rubber 11 to make the rubber battery 14 in a non-power generation state, and an electric power output means 16 that is energized by the power generation of the rubber battery 14 and performs a predetermined output.

[0019] In the present embodiment, the detection target W is, for example, a bearing that rotatably supports a roller of a belt conveyor or a metal cover fixed to the bearing, and the high-temperature detection device 10 is directly fixed to the detection target W and used as shown in FIG. 1(A). Note that the high-temperature detection device 10 may be attached to the detection target W via a member having a high thermal conductivity.

[0020] Moreover, mechanical parts such as a roller of a belt conveyor, a bearing, and a metal cover may be provided with the high-temperature detection device 10 (that is, the high-temperature detection device 10 is used as a part of the mechanical parts). By circulating the mechanical parts, it is not necessary to perform the work of attaching the high-temperature detection device 10 to each of the mechanical parts that are numerous in the belt conveyor at the site, and the convenience for the user can be improved. Further, from the viewpoint of improving the convenience for the user of a moving machine for a coke oven (equipment for transporting coke used in a coke oven), it is preferable to design a moving machine for a coke oven provided with the mechanical parts.

[0021] In the present embodiment, the spacer 15 is annular and is fixed in a state of contacting the detection target W. In the present embodiment, the spacer 15 is placed on the detection target W. A circular insulator 17, whose inner and outer diameters are approximately equal to those of the spacer 15, is placed on the spacer 15. A disc-shaped electrolyte-containing rubber 11 is fixed on the insulator 17, and a disc-shaped positive electrode 12, whose radius is equal to that of the electrolyte-containing rubber 11, is fixed on the electrolyte-containing rubber 11. The diameters of the electrolyte-containing rubber 11 and the positive electrode 12 are larger than the inner diameters of the spacer 15 and the insulator 17, respectively, and cover the inner space of the spacer 15 and the insulator 17 from above. Also, the diameters of the electrolyte-containing rubber 11 and the positive electrode 12 are smaller than the outer diameters of the spacer 15 and the insulator 17, respectively.

[0022] Furthermore, a negative electrode 13, which is in contact with the detection target W, is positioned in the inner space between the spacer 15 and the insulator 17. When the spacer 15 is in its normal state (i.e., without deformation due to melting, etc., and maintaining its original shape), the negative electrode 13 is not in contact with the spacer 15, the insulator 17, or the electrolyte-containing rubber 11. Moreover, since an insulator 17 is provided between the electrolyte-containing rubber 11 and the spacer 15, even if the spacer 15 and the detection target W are conductive (not to mention when the spacer 15 and the detection target W are insulators), the negative electrode 13 and the electrolyte-containing rubber 11 are not electrically connected via the detection target W and the spacer 15.

[0023] Therefore, when the spacer 15 is not in contact with the negative electrode 13 under normal conditions, the rubber battery 14 is in a non-power-generating state and does not generate electricity. In this embodiment, even if the insulator 17 is replaced with one made of the same material as the positive electrode 12, the rubber battery 14 will not generate electricity with the spacer 15 in its normal state. Therefore, it is possible to replace the insulator 17 with a component made of the same material as the positive electrode 12. This is because even if multiple conductors are brought into contact with the electrolyte-containing rubber 11, no electricity will be generated if the ionization tendencies of each conductor are similar.

[0024] With T°C being a predetermined temperature between 45°C and 120°C, the spacer 15 is formed from a low-melting-point alloy (in this embodiment, a gallium alloy) with a melting point of T°C. When an abnormality occurs in the detection target W and the temperature rises above the predetermined temperature (hereinafter, this predetermined temperature will be referred to as P°C, where P ≥ T), the spacer 15 melts and deforms, mainly in the area near the detection target W (including the part in contact with the detection target W), as the temperature rises above T°C.

[0025] As a result of the deformation of the spacer 15, the electrolyte-containing rubber 11, the positive electrode 12, and the insulator 17 move relative to the negative electrode 13 and come into contact with the electrolyte-containing rubber 11, as shown in Figure 1(B). The rubber battery 14 generates electricity when the negative electrode 13 comes into contact with the electrolyte-containing rubber 11. Therefore, when the detection target W reaches a predetermined temperature or higher, the spacer 15 deforms, causing the negative electrode 13 to move relative to the electrolyte-containing rubber 11 and come into contact with it, thereby generating electricity in the rubber battery 14.

[0026] The rubber battery 14 is a so-called chemical battery. It has been verified that the rubber battery 14 can generate electricity without any problems even when exposed to an atmosphere hotter than 100°C for a long period of time, as long as the negative electrode 13 is in contact with the electrolyte-containing rubber 11. Here, the electric output means 16 is connected to the positive electrode 12 and the negative electrode 13, respectively, by wires (not shown). Therefore, the electric output means 16 is energized when the rubber battery 14 generates electricity.

[0027] In this embodiment, the electric output means 16 is energized and transmits a predetermined signal wirelessly. The signal transmitted from the electric output means 16 is received by a remote device, and it is detected that an abnormality has occurred in the detection target W. An abnormality in the detected object W means, for example, if the detected object W is a rolling bearing, that dust has entered between the inner and outer rings of the bearing, preventing the rolling elements from rolling smoothly, causing the rollers to rotate and the bearing to heat up to P°C or higher due to frictional heat (reaching a predetermined high temperature state). If the detected object W is a sliding bearing, an abnormality in the detected object W means that dust has entered between the bearing and the shaft rotatably supported by the bearing, preventing the shaft from rotating smoothly, causing the bearing to heat up to P°C or higher due to frictional heat.

[0028] In this embodiment, the spacer 15 is a gallium alloy, but it is not necessary to form the spacer 15 from a gallium alloy, and in fact, the spacer 15 does not even need to be an alloy. For example, by forming the spacer 15 from a metal containing at least one or more atoms selected from the group consisting of Ga, Sn, Pb, Bi, In, Ag, Cu, and Zn, the melting point of the spacer 15 can be adjusted to be between 45°C and 120°C. The spacer 15 may also be formed from a resin.

[0029] Furthermore, the spacer 15 does not necessarily need to be designed to bring the negative electrode 13 into contact with the electrolyte-containing rubber 11 through deformation by melting. For example, the spacer 15 could be made of a resin that softens when heated, and as the spacer 15 softens, it could deform under the weight of the electrolyte-containing rubber 11 and the positive electrode 12, bringing the electrolyte-containing rubber 11 and the negative electrode 13 into contact.

[0030] Furthermore, the spacer 15 can also be formed from a shape memory alloy. In that case, when the temperature W to be detected is below P℃, the spacer 15 keeps the negative electrode 13 in a non-contact state with the electrolyte-containing rubber 11. When the temperature W to be detected rises above P℃, the spacer 15 is heated and deforms back to its original stored shape, causing the negative electrode 13 to come into contact with the electrolyte-containing rubber 11. The important aspect of the spacer 15 is that when the temperature W to be detected rises above P°C, the heat transferred from the temperature W to the spacer 15 deforms the spacer 15, causing the negative electrode 13, which was not in contact with the electrolyte-containing rubber 11, to come into contact with the electrolyte-containing rubber 11.

[0031] Alternatively, the spacer may be positioned so that the positive electrode (not the negative electrode) is at a distance from the electrolyte-containing rubber in its normal state, thereby keeping the rubber battery in a non-power-generating state. In this case, the high-temperature detection device is designed so that when the object to be detected reaches a temperature above a predetermined level, the spacer deforms, causing the positive electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby causing the rubber battery to generate electricity.

[0032] The positive electrode 12 can be composed of a material with a low ionization tendency, such as carbon nanotubes (which may be either SWCNTs or MWCNTs), carbon black, carbon nanofibers, graphite, Au, Pt, Ag, or Cu (meaning substantially only the relevant materials), or mostly composed of such materials, i.e., mainly composed of carbon nanotubes, carbon black, carbon nanofibers, Au, Pt, Ag, or Cu.

[0033] Furthermore, the negative electrode 13 is a material that has a significantly higher ionization tendency (lower standard electrode potential) than the positive electrode 12. For example, the negative electrode 13 can be constructed mainly from Li, Mg, Al, Zn, Fe, Ni, Sn, or Pb. From the perspective of increasing the voltage (current) output from the rubber battery 14, it is preferable that the difference in ionization tendency between the negative electrode 13 and the positive electrode 12 is large. In this embodiment, the standard electrode potential of the positive electrode 12 is set to be 0.2V or more higher than the standard electrode potential of the negative electrode 13.

[0034] In this embodiment, the electrolyte-containing rubber 11 is a rubber material in which an electrolyte solution is distributed, and the electrolyte solution is a solution in which a water-soluble substance is dissolved in water. As water-soluble substances, one or more substances selected from the group including calcium chloride, magnesium chloride, potassium carbonate, potassium pyrophosphate, magnesium perchlorate, calcium nitrate, magnesium nitrate, potassium acetate, urea, and potassium thiocyanate can be used. These substances are hygroscopic and have a solubility of 40 g / 100 g or more in water at 20°C.

[0035] Water-soluble substances do not need to be hygroscopic; they only need to be soluble in water (or a water-containing solution). For example, substances with a solubility of 5 g / 100 g or more in water (H2O) at 20°C can be used. Specifically, one or more substances selected from the group consisting of potassium benzoate, trehalose, glucose, sucrose, aluminum phosphate, sodium dihydrogen phosphate, citric acid, and water-soluble oils may be used as water-soluble substances. However, in order for the electrolyte-containing rubber 11 to stably acquire moisture from the surrounding atmosphere, it is preferable that the water-soluble substance is hygroscopic.

[0036] The rubber material is not particularly limited; for example, natural rubber, styrene-butadiene rubber, chloroprene rubber, acrylonitrile rubber, butyl rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, urethane rubber, silicone rubber, fluororubber, chlorosulfonated polyethylene rubber, acrylic rubber, isoprene rubber, or epichlorohydrin rubber can be used.

[0037] In this embodiment, the electrolyte-containing rubber 11 has an electrolyte solution dispersed substantially uniformly within the rubber material. This substantially uniform dispersion of the electrolyte solution within the rubber material can be achieved by mixing and dispersing the carrier to which the electrolyte solution is attached with the rubber material before crosslinking. The carrier is one or more substances selected from the group including, for example, zeolite, diatomaceous earth, shirasu balloon, carbon black, carbon nanotubes, graphene, silica gel, montmorillonite, kaolinite, pumice, shale, mesoporous silica, porous polymer beads, graphite, cellulose nanofiber, cork, and γ-alumina. Alternatively, the electrolyte solution may be distributed within the rubber material without the use of a carrier.

[0038] Furthermore, in this embodiment, the contact area between the positive electrode 12 and the electrolyte-containing rubber 11 is 1 cm². 2 As described above, when the negative electrode 13, which is in contact with the electrolyte-containing rubber 11, stops moving substantially relative to the electrolyte-containing rubber 11, the contact area between the negative electrode 13 and the electrolyte-containing rubber 11 is 1 cm².2 This concludes the explanation. Therefore, the positive electrode 12 and the negative electrode 13 are each 1 cm in the electrolyte-containing rubber 11. 2 This will result in contact with the person in question.

[0039] The larger the contact area between the positive electrode 12 and the negative electrode 13 and the electrolyte-containing rubber 11, the larger the current output from the rubber battery 14 to the electric output means 16. Since the electric output means 16 requires a current of a certain magnitude or larger to produce a predetermined output, the larger the output current of the rubber battery 14, the greater the variety of devices that can be used as the electric output means 16. Therefore, the positive electrode 12 and the negative electrode 13 are each 1 cm in the electrolyte-containing rubber 11. 2 Making contact in this manner is preferable in that it increases the options for the electric output means 16.

[0040] Furthermore, the high-temperature detection device 10 includes a cover body 18 that isolates the electrolyte-containing rubber 11, positive electrode 12, negative electrode 13 (i.e., rubber battery 14), and spacer 15 from the surrounding atmosphere. In this embodiment, in addition to these, an insulator 17 and an electric output means 16 are also placed inside the cover body 18 and isolated from the surrounding atmosphere. By shielding the cover body 18 from the surrounding atmosphere, it is possible to suppress situations where the electrolyte-containing rubber 11 fails to make contact with the negative electrode 13 at the appropriate time due to dust adhesion or the like.

[0041] From the above explanation, it is possible to realize a high-temperature detection method by using the high-temperature detection device 10 to detect when the object to be detected W has reached a predetermined high-temperature state, comprising the steps of: placing the negative electrode 13 (or positive electrode 12, or both positive electrode 12 and negative electrode 13) of a rubber battery 14, which generates electricity by contacting the electrolyte-containing rubber 11 with a positive electrode 12 and a negative electrode 13, at a distance from the electrolyte-containing rubber 11 using a spacer 15, thereby putting the rubber battery 14 into a non-power-generating state; and when the object to be detected W reaches a predetermined temperature or higher, the spacer 15 deforms, causing the negative electrode 13 (or positive electrode 12 if the positive electrode 12 was placed at a distance from the electrolyte-containing rubber 11, or both positive electrode 12 and negative electrode 13 if both positive electrode 12 and negative electrode 13 were placed at a distance from the electrolyte-containing rubber 11) to move relative to the electrolyte-containing rubber 11 and bring it into contact, thereby causing the rubber battery 14 to generate electricity, energizing the electric output means 16, and causing the electric output means 16 to produce a predetermined output.

[0042] In this case, there is no need to provide an insulator 17 or the like between the spacer 15 and the electrolyte-containing rubber 11, nor is it necessary for the positive electrode 12 to be positioned at a distance from the detection target W. Referring to Figures 2(A) and (B), a high-temperature detection device 20 in which there is no insulator 17 or the like between the spacer 15 and the electrolyte-containing rubber 11 will be described. Referring to Figures 3(A) and (B), a high-temperature detection device 30 in which the positive electrode 31 is in contact with the object to be detected W will be described.

[0043] In addition, in the high-temperature detection devices 20 and 30, components with the same configuration as those in the high-temperature detection device 10 are denoted by the same reference numerals, and detailed explanations are omitted. Furthermore, in the high-temperature detection devices 20 and 30, the electric output means 16 and the cover body 18 are not shown in the illustration. The same applies to the high-temperature detection devices 40 and 50, which will be described later.

[0044] In the high-temperature detection device 20 according to the second embodiment of the present invention, as shown in Figures 2(A) and (B), the spacer 15 and the electrolyte-containing rubber 11 are in direct contact. When the object to be detected W is an insulator, the spacer 15 may be a conductor or an insulator. When the object to be detected W is a conductor, an insulator is generally selected as the spacer 15 (however, even if the object to be detected W is a conductor, a conductor can be selected as the spacer 15 if the ionization tendency of the spacer 15 is equivalent to that of the positive electrode 12).

[0045] In the third embodiment of the present invention, as shown in Figures 3(A) and (B), a plate-shaped positive electrode 31 is directly attached to the object to be detected W, and a plate-shaped electrolyte-containing rubber 32 is fixed on the positive electrode 31. An annular spacer 15 is arranged to surround the positive electrode 31 and the electrolyte-containing rubber 32, and a plate-shaped negative electrode 33 is placed on the spacer 15. As shown in Figure 3(A), the spacer 15 has a height such that, under normal conditions, the negative electrode 33 does not come into contact with the electrolyte-containing rubber 32.

[0046] When the detected temperature W rises above P°C, the spacer 15 deforms, and as shown in Figure 3(B), the negative electrode 33 comes into contact with the electrolyte-containing rubber 32, causing the rubber battery 34, which has a positive electrode 31, an electrolyte-containing rubber 32, and a negative electrode 33, to start generating electricity. In this embodiment, the spacer 15 is an insulator, but depending on the material of the object to be detected W (for example, if the object to be detected W is an insulator), the spacer 15 may be a conductor. Furthermore, if an insulator is placed between the spacer 15 and the negative electrode 33, the object to be detected W may be an insulator or a conductor.

[0047] Furthermore, as shown in Figure 4(A), the positive electrode 12 may not be in contact with the electrolyte-containing rubber 11 when the detection target W is below P℃. In the high-temperature detection device 40 according to the fourth embodiment of the present invention shown in Figure 4(A), an annular spacer 41 is provided between the positive electrode 12 and the electrolyte-containing rubber 11, and the spacer 41 causes the positive electrode 12 to be positioned at a distance from the electrolyte-containing rubber 11. The heat from the object to be detected W is transferred to the spacer 41 via the spacer 15, the insulator 17, and the electrolyte-containing rubber 11.

[0048] When the temperature W reaches P°C or higher, the spacers 15 and 41 melt, causing the positive electrode 12 to come into contact with the electrolyte-containing rubber 11, and the electrolyte-containing rubber 11 to come into contact with the negative electrode 13, as shown in Figure 4(B), and the rubber battery 14 begins to generate electricity. In Figure 4(B), spacers 15 and 41 are shown to be completely dissolved, but it is sufficient for the positive electrode 12 and negative electrode 13 to come into contact with the electrolyte-containing rubber 11, and it is not necessary for spacers 15 and 41 to be completely dissolved (spacers 15 and 41 may deform without melting, causing the positive electrode 12 and negative electrode 13 to come into contact with the electrolyte-containing rubber 11). Note that the complete dissolution of spacer 15 (and the same applies to spacer 41) is included in the deformation of spacer 15.

[0049] Furthermore, as shown in Figure 5(A), the weight of a weight (an example of an auxiliary member) 51 may be used to assist in the contact of the positive electrode 12 and the negative electrode 13 with the electrolyte-containing rubber 11. In the high-temperature detection device 50 according to the fifth embodiment of the present invention shown in Figure 5(A), a weight 51 is placed on the positive electrode 12, and the load of the weight 51 acts on the electrolyte-containing rubber 11 via the positive electrode 12. As a result, when the temperature of the detection target W rises above P°C and the spacer 15 melts, the electrolyte-containing rubber 11 is pressed against the negative electrode 13 by the weight of the weight 51.

[0050] Although embodiments of the present invention have been described above, the present invention is not limited to the above-described forms, and any changes to the conditions, etc., that do not depart from the gist of the invention are all within the scope of application of the present invention. For example, the shapes and arrangements of the positive electrode, negative electrode, electrolyte-containing rubber, and spacer are not limited to the patterns of the above-described embodiments.

[0051] Furthermore, the predetermined output performed by the electric output means is not limited to the transmission of a predetermined signal. For example, the electric output means can be one that emits sound or lights up when energized. Spacers with melting points below 45°C or above 120°C may be used. The spacers that space the negative electrode and the electrolyte-containing rubber apart (and similarly the spacers that space the positive electrode and the electrolyte-containing rubber apart) may be composed of multiple spacer pieces made of different materials.

[0052] Furthermore, the cover that isolates the rubber battery and spacer from the surrounding atmosphere may be omitted. The auxiliary members that assist in the contact of the positive and negative electrodes with the electrolyte-containing rubber do not have to be weights. For example, an elastic body that assists the contact by elastic force or a magnetic body that assists the contact by magnetic force can be used. When an elastic body or a magnetic body is used as an auxiliary member, even if the high-temperature detection device is attached to the bottom of the object to be detected, it is possible to bring the negative electrode (or positive electrode, or both the negative and positive electrodes) positioned at a distance from the electrolyte-containing rubber into contact with the electrolyte-containing rubber against gravity, and the reliability of contact between the negative electrode (or positive electrode, or both the negative and positive electrodes) and the electrolyte-containing rubber can be increased. [Explanation of Symbols]

[0053] 10: High temperature detection device, 11: Electrolyte-containing rubber, 12: Positive electrode, 13: Negative electrode, 14: Rubber battery, 15: Spacer, 16: Electric output means, 17: Insulator, 18: Cover body, 20: High temperature detection device, 30: High temperature detection device, 31: Positive electrode, 32: Electrolyte-containing rubber, 33: Negative electrode, 34: Rubber battery, 40: High temperature detection device, 41: Spacer, 50: High temperature detection device, 51: Weight, W: Detection target

Claims

1. A high-temperature detection device that detects when the object to be detected reaches a predetermined high-temperature state, A rubber battery that generates electricity by having a positive electrode and a negative electrode in contact with an electrolyte-containing rubber containing an electrolyte solution, In the normal state, the negative electrode is positioned at a distance from the electrolyte-containing rubber, and a spacer is provided to put the rubber battery into a non-power-generating state. The system includes an electric output means that is energized by the power generated by the rubber battery and provides a predetermined output, The high-temperature detection device is characterized in that the spacer deforms when the object to be detected reaches a predetermined temperature or higher, causing the negative electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby generating electricity in the rubber battery.

2. A high-temperature detection device that detects when the object to be detected has reached a predetermined high-temperature state, A rubber battery that generates electricity by having a positive electrode and a negative electrode in contact with an electrolyte-containing rubber containing an electrolyte solution, In the normal state, the positive electrode is positioned at a distance from the electrolyte-containing rubber, and a spacer is provided to put the rubber battery into a non-power-generating state. The system includes an electric output means that is energized by the power generated by the rubber battery and provides a predetermined output, The high-temperature detection device is characterized in that the spacer deforms when the object to be detected reaches a predetermined temperature or higher, causing the positive electrode to move relative to the electrolyte-containing rubber and come into contact with it, thereby generating electricity in the rubber battery.

3. The high-temperature detection device according to claim 1 or 2, characterized in that the spacer has a melting point of 45°C or more and 120°C or less, and when the object to be detected reaches a predetermined temperature or higher, the spacer melts and deforms.

4. The high-temperature detection device according to claim 3, characterized in that the spacer is a metal containing one or more types of atoms selected from the group consisting of Ga, Sn, Pb, Bi, In, Ag, Cu, and Zn.

5. The positive electrode and the negative electrode are each made of the electrolyte-containing rubber by 1 cm ２ The high-temperature detection device according to claim 1 or 2, characterized by making contact as described above.

6. The high-temperature detection device according to claim 1 or 2, further comprising a cover body that isolates the rubber battery and the spacer from the surrounding atmosphere.

7. The high-temperature detection device according to claim 1, further comprising an auxiliary member that assists in the movement of the negative electrode to the electrolyte-containing rubber due to the deformation of the spacer.

8. The high-temperature detection device according to claim 2, further comprising an auxiliary member that assists in the movement of the positive electrode to the electrolyte-containing rubber due to the deformation of the spacer.

9. A mechanical component characterized by comprising a high-temperature detection device according to claim 1 or 2.

10. A mobile coke oven, characterized by comprising the mechanical parts described in claim 9.

11. A high-temperature detection method for detecting when a target object has reached a predetermined high-temperature state, A step of placing the negative electrode of a rubber battery, which generates electricity by contacting an electrolyte-containing rubber containing an electrolyte solution, at a distance from the electrolyte-containing rubber using a spacer, thereby putting the rubber battery in a non-power-generating state. A high-temperature detection method characterized by comprising the steps of: the detection target reaches a predetermined temperature or higher, the spacer deforms, the negative electrode moves relative to the electrolyte-containing rubber and brings it into contact, the rubber battery generates electricity, energizes the electric output means, and causes the electric output means to produce a predetermined output.

12. A high-temperature detection method for detecting when a target object has reached a predetermined high-temperature state, A step of placing the positive electrode of a rubber battery, which generates electricity by contacting an electrolyte-containing rubber containing an electrolyte solution, at a distance from the electrolyte-containing rubber using a spacer, thereby putting the rubber battery in a non-power-generating state. A high-temperature detection method characterized by comprising the steps of: the detection target reaches a predetermined temperature or higher, the spacer deforms, the positive electrode moves relative to the electrolyte-containing rubber and brings it into contact, the rubber battery generates electricity, energizes the electric output means, and causes the electric output means to produce a predetermined output.

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