JP2019214310A - Heat generation detection device and heat generation detection system - Google Patents

Abstract

To provide a heat generation detection device and a heat generation detection system which are less in influence due to deterioration of a component and can easily confirm heat generation of an object to be detected.SOLUTION: Heat generation detection devices 1A and 1B are mounted on a feeder F and detect heat generation of the feeder F. A storage part 2 stores a heat generation notification part 7 which gives notification about heat generation of the feeder F. When the feeder F exceeds a predetermined temperature, an opening part 4 opens an opening part of the storage part 2 so that the heat generation notification part 7 appears from the opening part of the storage part 2. When the opening part 4 is opened downward from the storage part 2 by its weight and a weight part 8 in the storage part 2 falls off, the heat generation notification part 7 is suspended from the opening part O of the storage part 2. When the feeder F generates heat and the opening part 4 is opened and an opening operation detection part 11 detects an opening operation of the opening part 4, the heat generation detection system 1 transmits a heat generation detection signal from a communication device 13 to a receiving device 14.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a heat generation detecting device that is attached to a detection target and detects heat generation of the detection target, and a heat generation detection system that detects heat generation of the detection target.

  In electric railways, electric power lines (train lines) are provided along the tracks on which the electric vehicles travel in order to supply electric power to electric vehicles. Supplying. An urgent task in sensing train line equipment is the discovery of a broken wire. Many of the causes of breakage of feeder wires are caused by the increase in electrical resistance due to corrosion inside the compression pipe (wire connection pipe), and the stranded wire near the outlet of the compression pipe is blown. Therefore, a method of sensing heat generation due to corrosion generated due to an abnormality inside the compression tube has been required. Conventionally, sensors using a shape memory alloy have been developed. In a sensor using such a shape memory alloy, when the temperature of the shape memory alloy reaches a set temperature, the shape memory alloy is deformed, and the presence or absence of an abnormality can be confirmed by visual observation. Further, a sensor has been developed which uses a shape memory alloy as a trigger to notify a detection state by a restoring force of a spring.

  The conventional device for detecting abnormal heat generation of an electric wire connection portion includes a frame attached in close contact with the electric wire connection portion, and a trigger piece including a shape memory alloy attached to the frame and deformed by heat generation of the electric wire connection portion. A display piece that is displaced from the standby position to the detection position when the trigger piece is deformed, and a spring member that urges the display piece from the standby position toward the detection position. reference). In such a conventional apparatus for detecting abnormal heat generation of a train line connection, when the train line connection generates heat, the trigger piece is deformed and detached from the spring member, and the display piece jumps from the standby position to the detection position by the urging force of the spring member. In addition, the heat generated at the connecting part of the train line can be visually confirmed by a display piece.

JP 2013-005602 A

  In the conventional device for detecting abnormal heat generation at the connection of the train line, the position of the feeder line is high and the display piece that indicates the heat generation at the connection of the train line is small, so even if the display piece rises, it is difficult to visually check the connection of the train line. The detection of fever in the part tends to be delayed. Further, in the conventional device for detecting abnormal heat generation at the connection portion of a train line, since a spring member is used, there is a problem that the spring is permanently deformed (set) or deteriorated by rust or the like.

  SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat generation detecting device and a heat generation detection system capable of easily confirming heat generation of an object to be detected with little influence due to deterioration of components.

The present invention solves the above-mentioned problems by the following means.
Note that description will be given with reference numerals corresponding to the embodiment of the present invention, but the present invention is not limited to this embodiment.
As shown in FIGS. 3, 5 and 6, the invention according to claim 1 is a heat generation detecting device which is attached to a detection target (F) and detects heat generation of the detection target, wherein the detection target is A heat generation notifying section (7) for notifying heat generation, a housing section (2) for housing the heat generation notification section, and this housing section so that the heat generation notification section appears from an opening (O) of the housing section. And an opening (4) for opening the opening of the container, and fixing the opening from a fixed state such that the opening is opened downward by its own weight from the housing when the object to be detected exceeds a predetermined temperature. A heat detection device (1) including a switching unit (6) for switching to a release state.

  According to a second aspect of the present invention, in the heat generation detecting device according to the first aspect, as shown in FIGS. 3 and 5, the heat generation notifying section is configured to open the opening of the housing section by the opening section. The heat generation detecting device is characterized by hanging down from an opening of the housing.

  According to a third aspect of the present invention, in the heat generation detecting device according to the second aspect, as shown in FIG. 5, when the heat generation notifying unit sees the heat generation notification unit from a length direction of the detection target, The heat generation detecting device is characterized in that the heat generation notification portion hangs down from the opening of the housing portion such that the surface of the heat generation notification portion faces forward.

  According to a fourth aspect of the present invention, in the heat generation detecting device according to the first aspect, as shown in FIG. 6, the heat generation notifying section is configured such that when the opening section opens the opening of the housing section, The heat generation detecting device is characterized by being developed from an opening of the heat generation device.

  According to a fifth aspect of the present invention, in the heat generation detecting device according to any one of the first to fourth aspects, as shown in FIGS. The heat generation detecting device is provided with a heat conducting part (10) for conducting heat from the object to be detected to the housing part by a contact surface (10a) to which the object contacts.

  According to a sixth aspect of the present invention, in the heat generation detecting device according to any one of the first to fifth aspects, as shown in FIGS. 8 and 9, an opening operation detection for detecting an opening operation of the opening portion. A heat generation detecting device comprising a unit (11).

  According to a seventh aspect of the present invention, in the heat generation detecting device according to any one of the first to sixth aspects, as shown in FIG. 11, the heat generation detecting device detects heat generation exceeding a predetermined temperature of the detection target. A heat generation detecting device comprising a part (15).

  The invention according to claim 8 is a heat generation detection system for detecting heat generation of the detection target (F), as shown in FIGS. 7 and 10, and is described in any one of claims 1 to 7. Heat generation device (1A, 1B), a transmission device (13) for transmitting a detection result of the heat generation detection device, and a reception device (14) for receiving the detection result transmitted from the transmission device. A detection system (12).

  According to the present invention, it is possible to easily confirm the heat generation of the detection target with little influence due to the deterioration of the components.

BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the heat detection apparatus which concerns on 1st Embodiment of this invention, (A) is an external view which shows the state at the time of normal, and (B) is an external view which shows the state at the time of detection. FIG. 2 is a perspective view illustrating a normal state of the heat detection device according to the first embodiment of the present invention. It is a perspective view showing a state at the time of detection of the exothermic detection device concerning a 1st embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is an external view of the heat generation detection apparatus which concerns on 1st Embodiment of this invention, (A) is a front view, (B) is a side view, (C) is a bottom view, (D) is ( It is an enlarged view of the IVD part of C). It is a perspective view showing the state at the time of detection of the exothermic detection device concerning a 2nd embodiment of this invention. It is a perspective view showing the state at the time of detection of the exothermic detection device concerning a 3rd embodiment of this invention. It is an external view of a heat generation detection system according to a fourth embodiment of the present invention, in which (A) is an external view showing a normal state, and (B) is an external view showing a state at the time of detection. FIG. 14 is a side view showing a part of a normal state of a heat detection device of a heat detection system according to a fourth embodiment of the present invention, with a part cut away. It is a side view which cuts away and shows a part of the state at the time of detection in the exothermic detection device of the exothermic detection system concerning a 4th embodiment of this invention. It is an external view of the heat detection system which concerns on 5th Embodiment of this invention, (A) is an external view which shows the state at the time of normal, (B) is an external view which shows the state at the time of detection. It is an external view which cuts away and shows a part of heat generation detection apparatus of the heat generation detection system concerning a 5th embodiment of this invention, (A) is a front view, (B) is a side view, and (C). Is a bottom view.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
Feeder wire F shown in FIG. 1 is a wire that supplies power from a feeder substation to a train line. The feeder line F is installed in parallel with a trolley wire of an overhead wire on which a current collector of an electric vehicle such as a train or an electric locomotive slides, and supplies electric power to the trolley line at regular intervals. The feeder wire F is, for example, a hard copper stranded wire or a hard aluminum stranded wire.

  The connection part C is a member for connecting the feeder wire F. The connection part C is a metal fitting for electrically and mechanically connecting the ends of the feeder wire F to each other. The connection portion C is, for example, a compression connection pipe (sleeve) that is compressed in a state of being attached to the outer peripheral surface of the end portion of the feeder wire F and grips the feeder wire F. The connecting portion C shown in FIG. 1 is a straight sleeve that electrically and mechanically connects stranded wires on which tension acts by sleeves. When the feeder wire F is a copper wire, a copper compression connection pipe is used for the connection portion C, and when the feeder wire F is an aluminum wire, an aluminum compression connection pipe is used.

  The heat generation detecting device 1 shown in FIGS. 1 to 4 is a device that is attached to a feeder wire F and detects heat generation of the feeder wire F. When detecting the heat generation of the feeder wire F, the heat generation detecting device 1 displays a warning that can visually confirm the heat generation of the feeder wire F. The heat generation detection device 1 functions as an abnormal heat generation detection sensor that detects abnormal heat generation at a compressed portion of the feeder line F in an electric railway. As shown in FIG. 1, the heat generation detecting device 1 is installed on the lower surface of the feeder wire F in the vicinity of the connection portion C of the feeder wire F. The heat generation detecting device 1 includes a housing section 2 shown in FIGS. 1 to 4, mounting sections 3A and 3B, an opening section 4, a connecting section 5 shown in FIGS. 2 to 4, a switching section 6, FIGS. It includes a heat generation notification section 7 shown in FIG. 3, a weight section 8, fixing sections 9A and 9B shown in FIGS. 2 to 4, a heat conduction section 10 shown in FIG.

  The accommodation section 2 shown in FIGS. 1 to 4 is means for accommodating the heat generation notification section 7. As shown in FIG. 3, the housing portion 2 forms an upper portion of the main body of the heat detection device 1 and is a cubic container having an opening O below. As shown in FIGS. 1 and 2, the housing 2 is mounted on the outer peripheral surface of the electric wire F such that the center line of the housing 2 and the center line of the electric wire F are parallel to each other. As shown in FIG. 4A, the housing 2 has a substantially U-shaped appearance when viewed from the front, and is formed by bending a plate member having a predetermined shape. The housing portion 2 is formed of, for example, a metal such as aluminum which has excellent corrosion resistance and is easily formed. The accommodating portion 2 includes an upper plate portion 2a, side plate portions 2b and 2c, an end plate portion 2d shown in FIGS. 3 and 4, an insertion portion 2e shown in FIGS. 2 to 4 are provided.

  The upper plate portion 2a shown in FIGS. 3 and 4 is a portion constituting the upper surface of the housing portion 2. The side plate portions 2b and 2c are portions constituting side surfaces of the housing portion 2. The side plate portions 2b and 2c function as a foreign matter entry preventing portion that prevents entry of foreign matter into the housing portion 2. The side plate portions 2b and 2c are formed by bending both edges of the upper plate portion 2a and facing each other in parallel. The end plate portion 2d is a portion that constitutes an end surface of the housing portion 2. The end plate portion 2d is formed by bending one end of the upper plate portion 2a, and functions as a foreign matter entry preventing portion together with the side plate portions 2b and 2c. The insertion portion 2e shown in FIGS. 2, 3 and 4B is a portion into which the mounting portions 3A and 3B are inserted. The insertion portion 2e is a through hole that penetrates the side plate portions 2b, 2c. 2 to 4 is a part to which the switching unit 6 is attached. The attachment portion 2f is formed by bending a part of an end of the upper plate 2a opposite to the end plate 2d side into a cylindrical shape.

  The opening O shown in FIGS. 1 and 3 is a portion for causing the heat generation notification unit 7 to appear from the storage unit 2. The opening O is formed on the lower side of the housing 2 as shown in FIG. 3, and is opened and closed by the opening 4 as shown in FIG. As shown in FIG. 2, the opening O is closed by the opening 4 when the feeder wire F is at or below a predetermined temperature, and is opened when the feeder wire F exceeds the predetermined temperature as shown in FIG. Released by

  The mounting portions 3A and 3B shown in FIGS. 1 to 4 are means for detachably mounting the housing portion 2 to the feeder wire F. Each of the mounting portions 3A and 3B has the same structure, and is inserted into the insertion portion 2e of the housing portion 2. As shown in FIG. 1, the mounting portions 3A and 3B are wound around the outer peripheral surface of the feeder wire F and fastened to connect the feeder wire F and the housing 2 to the heat conducting portion 10 as shown in FIG. And a fixing band for fixing the housing portion 2 to the feeder wire F. As shown in FIG. 1, the mounting portion 3A is fixed to the feeder wire F near one end of the housing portion 2, and the mounting portion 3B is fixed to the feeder wire F near the other end of the housing portion 2. ing.

  The opening 4 shown in FIGS. 1 to 4 is a unit that opens the opening O of the housing 2 so that the heat generation notification unit 7 appears from the opening O of the housing 2. The opening 4 constitutes a lower part of the main body of the heat detection device 1 and is a rectangular lid for opening and closing the opening O of the housing 2. As shown in FIGS. 1 and 2, when the opening O of the housing 2 is closed, the opening 4 is set so that the center line of the opening 4 is parallel to the center line of the housing 2. It is attached to the housing 2. The opening 4 is formed of, for example, a metal such as aluminum similar to the housing 2. As shown in FIGS. 1B and 3, the opening 4 has a substantially L-shaped appearance when viewed from the side, and is formed by bending a plate-like member having a predetermined shape. ing. As shown in FIGS. 1B and 3, the opening 4 opens downward from the housing 2 by its own weight. As shown in FIG. 2, when the feeder wire F is at or below a predetermined temperature, the opening 4 closes the opening O of the housing portion 2, and as shown in FIG. Then, the opening O of the storage section 2 is opened. The opening portion 4 includes a bottom plate portion 4a shown in FIGS. 2 to 4, an end plate portion 4b, a stopper portion 4c shown in FIGS. 2 and 4, a vibration stop portion 4d shown in FIGS. I have.

  The bottom plate portion 4a shown in FIGS. 2 to 4 is a portion that forms the bottom surface of the open portion 4. As shown in FIG. 2, when the opening 4 closes the opening O of the housing 2, the bottom plate 4 a functions as a bottom that closes the opening O of the housing 2. The end plate portion 4b is a portion that constitutes an end surface of the opening portion 4. The end plate portion 4b is formed by bending one end of the bottom plate portion 4a so as to face the end plate portion 2d of the storage portion 2 when the opening portion 4 closes the opening O of the storage portion 2. Have been. The end plate portion 4b functions as a foreign matter entry preventing portion together with the side plate portions 2b and 2c and the end plate portion 2d on the housing portion 2 side.

  The stopper portion 4c shown in FIGS. 2 and 4 is a portion that is fixed and released by the switching portion 6. The stopper portion 4c is supported by the switching portion 6 when the feeder wire F is at or below a predetermined temperature as shown in FIG. 2, and when the feeder wire F exceeds the predetermined temperature as shown in FIG. 6 not supported. The stopper portion 4c is formed by bending the end of the end plate portion 4b outward so that the switching portion 6 is hooked.

  2 to 4 is a portion for preventing the opening portion 4 from swinging. The vibration stopper 4 d prevents the stopper 4 c from coming off the switching unit 6 when the opening 4 is displaced from the housing 2. As shown by a dashed line in FIG. 4A, the vibration stopper 4d is sandwiched between the inner surface of the side plate 2b of the housing 2 and the inner surface of the side plate 2c, so that To prevent the opening 4 from being displaced. The vibration stopper 4d is formed by bending a part of both edges of the bottom plate 4a inward.

  The connecting part 5 shown in FIGS. 2 to 4 is means for rotatably connecting the housing part 2 and the opening part 4. The connecting part 5 is a hinge part that connects the housing part 2 and the opening part 4 so that the opening part 4 can be opened and closed with respect to the housing part 2. The connecting portion 5 is a shaft-like member such as a grommet (an engaging pin) inserted into the through-hole on the housing portion 2 side and the through-hole on the opening portion 4 side. The connecting portion 5 functions as a bearing that rotatably supports the opening 4 around the connecting portion 5 as a rotation center.

  The switching section 6 shown in FIGS. 2 to 4 releases the open section 4 from the fixed state so that the open section 4 is opened downward by its own weight when the feeder wire F exceeds a predetermined temperature. This is a means for switching to a state. As shown in FIGS. 2 and 4 (C) and 4 (D), when the feeder line F is at a predetermined temperature or lower, the switching unit 6 opens the opening unit 4 by its own weight so as not to open the housing unit 2. The part 4 is fixed. On the other hand, as shown in FIG. 3, when the feeder wire F exceeds the predetermined temperature, the switching unit 6 releases the fixing of the opening 4 so that the opening 4 opens by its own weight to open the housing 2. As shown by the solid line in FIG. 4 (D), when the feeder wire F is at a predetermined temperature or lower, the switching portion 6 has a curved appearance and supports the stopper portion 4c of the opening portion 4 from below. The part 4 is prevented from opening downward by its own weight. On the other hand, as shown by the two-dot chain line in FIG. 4D, when the feeder wire F exceeds a predetermined temperature, the switching unit 6 changes its appearance from a curved state to a linear state, and the stopper 4 c of the opening 4. And allows the opening 4 to open downward by its own weight. The switching unit 6 is, for example, a shape memory alloy (SMA) having a characteristic of changing its shape due to heat generation. The switching part 6 is a rod-shaped member in appearance, and is fixed to the mounting part 2f by caulking the mounting part 2f after being inserted into the mounting part 2f of the housing part 2. The switching unit 6 is, for example, a nickel-titanium alloy having a transformation temperature (transformation point) of 70 ± 5 ° C., and is subjected to tin plating or painting as needed to prevent corrosion due to contact with a dissimilar metal. The switching unit 6 functions as a trigger that operates when the feeder wire F generates heat. The switching unit 6 is arranged near the feeder wire F so as to operate reliably according to the temperature of the feeder wire F.

  1 and 3 is a part for notifying the heat generation of the feeder wire F. The heat generation notifying unit 7 generates a visually confirmable warning when the feeder wire F exceeds a predetermined temperature. The heat generation notifying unit 7 hangs down from the opening O of the housing 2 when the opening 4 opens the opening O of the housing 2. As shown in FIG. 1A, the heat generation notifying section 7 is housed in the housing section 2 when the feeder wire F is at a predetermined temperature or lower, and as shown in FIG. When the value exceeds, it appears from the storage unit 2. The heat generation notification unit 7 functions as a flag for notifying the heat generation state of the feeder line F and calling attention. The heat generation notification unit 7 is housed in the housing unit 2 in a state of being wound around the weight unit 8. The heat generation notification unit 7 is a band-shaped cloth having a length and a width that can be visually confirmed. The heat generation notification unit 7 is, for example, a self-weight cloth made of a synthetic resin such as aramid fiber, and is colored red or orange with good visibility and easily calling attention. In order to improve visibility, the heat generation notifying unit 7 has a reflective material such as an aluminum tape that reflects light adhered to the surface as necessary.

  The weight section 8 shown in FIGS. 1 and 3 is a means for applying a load to the heat generation notification section 7 so that the heat generation notification section 7 maintains the hanging state. The weight unit 8 is fixed to the heat generation notification unit 7 by the fixing unit 9B after being attached to the lower end of the heat generation notification unit 7 with an adhesive. The weight portion 8 is, for example, a rod-shaped member made of a polyamide synthetic resin having a length substantially equal to the width of the heat generation notification portion 7. In order to improve the visibility, the weight portion 8 is provided with a reflective material such as an aluminum tape which reflects light as needed, on the surface thereof.

  The fixing portion 9A shown in FIGS. 2 to 4 is a means for fixing the heat generation notification portion 7 to the housing portion 2. As shown in FIG. 3, the fixing portion 9 </ b> A fixes the upper end of the heat generation notification portion 7 to the housing portion 2. The fixing portion 9A is a fixing member such as a caulking pin inserted into the through hole of the grommet on the side of the heat notification portion 7 and the through hole of the side plate portion 2b of the housing portion 2. The fixing portion 9B shown in FIG. 3 is a means for fixing the weight portion 8 to the heat generation notification portion 7. The fixing portion 9 </ b> B fixes the weight 8 to the lower end of the heat generation notification portion 7. The fixing portion 9B is a fixing member such as a caulking pin inserted into the through hole of the grommet on the heat generation notification portion 7 side and the through hole on the weight portion 8 side.

  4 (A) is a means for conducting heat from the feeder wire F to the housing portion 2 by the close contact surface 10a which is in close contact with the feeder wire F. The heat conducting portion 10 transfers heat generated by the feeder wire F to the housing portion 2 by being in close contact with the outer peripheral surface of the feeder wire F over a wide range. The heat conducting part 10 includes a contact surface 10a that is in close contact with the feeder wire F. The contact surface 10a is formed into a curved surface having substantially the same curvature as the feeder wire F, for example, by bending the upper plate portion 2a of the housing portion 2 into an R shape.

Next, the operation of the heat generation detecting device according to the first embodiment of the present invention will be described.
For example, when the inside of the connection portion C is corroded, the feeder wire F near the outlet of the connection portion C generates heat. As shown in FIG. 2 and FIG. 4A, since the contact surface 10a of the heat conducting portion 10 of the heat detection device 1 is in contact with the outer peripheral surface of the electric wire F, the heat generated by the electric wire F is heat. The power is transmitted from the conduction unit 10 to the switching unit 6 through the upper plate 2 a of the storage unit 2. At this time, as shown in FIG. 4A, since the outer peripheral surface of the feeder wire F and the contact surface 10a of the heat conducting portion 10 are in close contact with each other in a wide range, the heat generated by the feeder wire F is efficiently transferred to the housing portion 2. It is transmitted to. As shown in FIG. 4D, when the heat generated by the feeder wire F exceeds a predetermined temperature, the shape of the switching unit 6 changes from a curved state to a linear state. For this reason, the tip of the switching section 6 comes off from the lower surface of the stopper section 4c of the opening section 4, and the switching section 6 switches the opening section 4 from the fixed state to the unlocked state. As a result, as shown in FIG. 3, the opening 4 rotates about the connecting portion 5 with respect to the housing 2, the opening 4 opens downward by its own weight, and the opening O of the housing 2 opens. Opened by 4. When the opening 4 opens downward, the weight 8 in the storage unit 2 falls in conjunction with the opening operation of the opening 4, and the heat generation notification unit 7 wound around the weight 8 winds. After being loosened, the heat generation notifying section 7 hangs down from the housing section 2 as shown in FIGS. As a result, for example, a crew member of a vehicle traveling on the track or a worker moving along the track visually recognizes the heat generation notification unit 7, and the heat generation of the feeder line F is notified to the crew member or the worker.

The heat detection device according to the first embodiment of the present invention has the following effects.
(1) In the first embodiment, the housing portion 2 houses the heat generation notification portion 7 that notifies the heating of the feeder wire F, and the heat generation notification portion 7 appears from the opening O of the storage portion 2. The opening 4 of the housing 2 is opened by the opening 4. Further, in the first embodiment, when the feeder wire F exceeds a predetermined temperature, the open part 4 is switched from the fixed state to the fixed release state so that the open part 4 is opened downward by its own weight from the housing part 2. The unit 6 switches. For this reason, a spring member such as a conventional device for detecting abnormal heat generation at a connection part of a train line is not required, and the heat generation notification unit 7 can be reliably caused to appear using the weight of the switching unit 6. As a result, the heat generation of the feeder wire F can be visually confirmed, and the structure of the heat generation detection device 1 is simplified, so that the heat generation detection device 1 can be manufactured at low cost.

(2) In the first embodiment, when the opening O of the housing 2 is opened by the opening 4, the heat generation notification unit 7 hangs down from the opening O of the housing 2. Therefore, the heat generation state of the feeder wire F can be easily recognized visually, and the visibility of the heat generation notification section 7 can be improved by the heat generation notification section 7 fluttering by the wind.

(3) In the first embodiment, the heat conducting portion 10 conducts heat from the feeder wire F to the housing portion 2 by the contact surface 10a that is in close contact with the feeder wire F. For this reason, the heat conduction performance between the feeder wire F and the housing portion 2 is improved, heat is efficiently transmitted from the feeder wire F to the switching portion 6 through the housing portion 2, and the opening portion 4 is reliably secured by the switching portion 6. Can be opened.

(Second Embodiment)
Hereinafter, the same portions as those shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.
The heat generation notifying section 7 shown in FIG. 5 extends from the opening O of the housing section 2 so that the surface of the heat generation notification section 7 faces forward when the heat generation notification section 7 is viewed from the length direction of the feeder wire F. Hang down. Here, the front means a heat generation notification unit on the front side of a crew member, such as a driver or a conductor of a vehicle running on the track, or a worker inspecting the state of the electric wire F while patrolling along the track. Not only the case where the surface of the heat generation notification unit 7 faces but also the case where the surface of the heat generation notification unit 7 is directed in a direction that can be visually recognized by the crew or the worker when the heat generation notification unit 7 swings. The heat generation notifying portion 7 is fixed on an inclined line inclined with respect to the center line of the housing portion 2 so that the heat generation notification portion 7 hangs down in a twisted state. Fixed to. One end of the upper end of the heat generation notification unit 7 is fixed to the side plate 2b of the housing unit 2 by a fixing unit 9A. Has been fixed by.

The heat generation detecting device according to the second embodiment of the present invention has the following effects in addition to the effects of the first embodiment.
In the second embodiment, when the heat generation notification portion 7 is viewed from the length direction of the feeder wire F, the heat generation notification portion 7 hangs down from the housing portion 2 so that the surface thereof faces forward. For this reason, for example, the heat generation notification unit 7 is directed in front of a crew of a vehicle traveling on the track or a worker traveling along the track. As a result, the crew or the worker can grasp the heat generation notification unit 7 as a surface, and the visibility of the heat generation notification unit 7 can be improved.

(Third embodiment)
6 is developed from the opening O of the housing 2 when the opening 4 opens the opening O of the housing 2. The heat generation notifying section 7 is a fan-shaped cloth having a size visually recognizable, and is colored in red or orange to draw attention with good visibility. When the feeder wire F is at or below the predetermined temperature, the heat generation notification unit 7 is stored in the storage unit 2 in a folded state, and when the feeder wire F exceeds the predetermined temperature, the storage unit becomes unfolded. Appears from 2. The heat generation notifying section 7 has one edge fixed to the housing section 2 by the fixing section 9A, and the other edge fixed to the opening section 4 by the fixing section 9A.

The heat generation detecting device according to the third embodiment of the present invention has the following effects in addition to the effects of the first embodiment.
In the third embodiment, when the opening 4 of the housing 2 is opened by the opening 4, the heat generation notification unit 7 is developed from the opening O of the housing 2. Therefore, the heat generation notifying section 7 can be changed from the folded state to the expanded state in conjunction with the opening operation of the opening section 4, and the heat generation of the feeder wire F can be reliably notified.

(Fourth embodiment)
The heat generation detection devices 1A and 1B shown in FIG. 7 include an opening operation detection unit 11, as shown in FIGS. The heat generation detection devices 1A and 1B have the same structure as the heat generation detection device 1 shown in FIGS. As shown in FIG. 7, the heat generation detecting devices 1A and 1B are detachably attached to the feeder wire F at one of the outlet sides of the connection portion C, and the heat generation detection device 1B is connected to the connection portion C as shown in FIG. Is detachably attached to the other feeder wire F on the exit side.

  The opening operation detecting unit 11 illustrated in FIGS. 8 and 9 is a unit that detects an opening operation of the opening unit 4. The opening operation detecting section 11 is detachably attached to the bottom plate 4 a of the opening section 4. As shown in FIG. 8, the opening operation detecting unit 11 does not generate an electric signal when the housing unit 2 is closed by the opening unit 4, but the housing unit 2 is opened by the opening unit 4 as shown in FIG. 9. Sometimes it generates an electrical signal. The opening operation detecting section 11 includes a contact section 11a which comes into contact with and separates from the lower surface of the upper plate section 2a of the housing section 2. As shown in FIG. 8, when the opening 4 is in the closed state and the lower surface of the upper plate 2a of the housing 2 is in contact with the contact 11a, the opening operation detecting unit 11 opens an electric contact and outputs an electric signal. Does not occur. On the other hand, as shown in FIG. 9, when the opening portion 4 is in the open state and the contact portion 11a is separated from the lower surface of the upper plate portion 2a of the housing portion 2, the opening operation detecting portion 11 closes the electric contact and turns off the electric contact. Generate a signal. The opening operation detection unit 11 is, for example, a limit switch that detects displacement of the opening unit 4 by the contact unit 11a and opens and closes an electrical contact. When detecting the opening operation of the opening unit 4, the opening operation detecting unit 11 outputs an opening operation detection signal to the transmitting device 13 illustrated in FIG.

  The heat generation detection system 12 illustrated in FIG. 7 is a system that detects heat generation of the feeder line F. The heat generation detection system 12 notifies the heat generation of the feeder wire F so that the heat generation of the feeder wire F can be visually confirmed when the heat generation of the feeder wire F is detected by the heat generation detectors 1A and 1B, and detects the detection results of the heat generation detectors 1A and 1B. Is transmitted to an external device to notify the heating of the electric wire F. As shown in FIG. 7B, the heat generation detection system 12 includes heat generation detection devices 1A and 1B, a transmission device 13, a reception device 14, and the like.

  The transmitting device 13 illustrated in FIG. 7 is a device that transmits detection results of the heat generation detecting devices 1A and 1B. As shown in FIG. 9, when the opening operation detecting unit 11 of the heat generation detecting devices 1A and 1B detects the opening operation of the opening unit 4, the transmitting device 13 displays the detection result of the opening operation detecting unit 11 in FIG. To the receiving device 14 shown in FIG. The transmitting device 13 is electrically connected to the opening operation detecting unit 11 of the heat detecting devices 1A and 1B through a signal line, and receives an electric signal (opening operation detecting signal) output from the opening operation detecting unit 11. A heat generation detection signal is transmitted as a detection result. The transmission device 13 is a transmitter that wirelessly transmits the detection results of the heat generation detection devices 1A and 1B. The transmitting device 13 is detachably attached to the connecting portion C by a fixed band similar to the attaching portions 3A and 3B shown in FIG.

  The receiving device 14 illustrated in FIG. 7B is a device that receives the detection result transmitted from the transmitting device 13. As shown in FIG. 9, when the opening operation detecting section 11 of the heat generation detecting apparatuses 1A and 1B detects the opening operation of the opening section 4, the receiving apparatus 14 transmits the detection result of the opening operation detecting section 11 to the transmitting apparatus 13 as shown in FIG. Receive from. The receiving device 14 receives the heat generation detection signal transmitted by the transmitting device 13 as a detection result. When receiving the heat generation detection signal, the receiving device 14 communicates with the command or the maintenance section. The receiving device 14 is a receiver that receives the detection results of the heat generation detecting devices 1A and 1B transmitted by the transmitting device 13. The receiving device 14 is, for example, a mobile terminal device (information processing terminal) such as a smartphone, a mobile phone, or a tablet terminal owned by a worker traveling along a track, a communication device in a signaling device room, and a communication device in a station yard. It is an indoor communication device or an operation management device in a central command center that manages the operation of a train running on a track. When receiving the heat generation detection signal, the receiving device 14 operates an alarm device that generates an alarm by sound or light, or an indicator lamp that performs a predetermined display using characters, figures, symbols, colors, or a combination thereof, as necessary. Let it.

Next, the operation of the heat generation detecting device and the heat generation detection system according to the fourth embodiment of the present invention will be described.
When the feeder wire F generates heat and the opening 4 opens the opening O of the storage section 2, the heat generation notification section 7 hangs down from the storage section 2 as shown in FIG. At this time, as shown in FIG. 9, when the opening part 4 opens the housing part 2 around the connecting part 5 as a rotation center, the contact part 11 a of the opening operation detecting part 11 is separated from the upper plate part 2 a of the housing part 2. Then, the electrical contact of the opening operation detecting section 11 is closed and the opening operation detecting section 11 outputs an opening operation detecting signal. At this time, since the opening operation detecting unit 11 is attached to the opening unit 4 side, the own weight of the opening operation detecting unit 11 is added to the opening unit 4 together with the own weight of the opening unit 4. Therefore, when the switching unit 6 releases the fixing of the opening 4, the opening 4 is more reliably opened downward. When the opening operation detecting section 11 outputs an opening operation detection signal to the transmitting device 13, the transmitting device 13 transmits a heat generation detecting signal as shown in FIG. 7B, and the receiving device 14 receives this heat generation detecting signal. As a result, the heat generation of the feeder line F is notified to the portable terminal device owned by the worker, the communication device in the signaling device room, and the like.

The heat detection device and the heat detection system according to the fourth embodiment of the present invention have the following effects in addition to the effects of the first to third embodiments.
(1) In the fourth embodiment, the opening operation of the opening unit 4 is detected by the opening operation detecting unit 11. Therefore, the opening operation of the opening unit 4 can be detected by the opening operation detecting unit 11 in synchronization with the switching operation of the switching unit 6, and the heat generation of the feeder line F can be reliably detected.

(2) In the fourth embodiment, the transmitting device 13 transmits the detection results of the heat generation detecting devices 1A and 1B, and the receiving device 14 receives the detection results transmitted from the transmitting device 13. For this reason, the heat generation of the feeder line F can be output from the transmitter to the receiver by radio or the like, and the heat generation of the feeder line F can be quickly and accurately notified.

(Fifth embodiment)
The heat detection devices 1A and 1B shown in FIG. 10 include the heat detection unit 15 shown in FIG. The transmission device 13 shown in FIG. 10 transmits the detection result of the heat generation detection unit 15 to the reception device 14 when the heat generation detection unit 15 of the heat generation detection devices 1A and 1B detects heat generation exceeding a predetermined temperature of the feeder wire F. . The transmission device 13 is electrically connected to the heat detection units 15 of the heat detection devices 1A and 1B through signal lines, and transmits an electric signal (heat detection signal) output from the heat detection unit 15 as a detection result. The receiving device 14 receives the detection result of the heat detection unit 15 from the transmission device 13 when the heat detection unit 15 of the heat detection devices 1A and 1B detects heat generation exceeding a predetermined temperature of the feeder wire F. The receiving device 14 receives the heat generation detection signal transmitted by the transmitting device 13 as a detection result.

  The heat generation detecting unit 15 shown in FIG. 11 is a unit that detects heat generation of the feeder wire F exceeding a predetermined temperature. The heat generation detecting unit 15 does not generate an electric signal when the feeder line F is at or below a predetermined temperature, but generates an electric signal when the feeder line F exceeds a predetermined temperature. The heat generation detecting unit 15 is mounted on the upper surface of the upper plate portion 2a of the housing unit 2 so as to be slightly exposed from the surface of the heat conducting unit 10 so as to be in contact with the surface of the feeding wire F. It is sandwiched between the accommodating part 2. When the feeder wire F is at or below a predetermined temperature, the heat generation detecting unit 15 has an open electrical contact and does not generate an electrical signal. On the other hand, when the feeder line F exceeds a predetermined temperature, the heat generation detecting unit 15 closes the electric contact and generates an electric signal. The opening operation detection unit 11 is, for example, a thermoswitch that closes an electrical contact by elastically deforming when a heat-sensitive element that comes into contact with the feeder wire F exceeds a specified temperature. The opening operation detection unit 11 outputs a heat generation detection signal to the transmission device 13 when detecting heat generation exceeding a predetermined temperature of the feeder line F.

Next, the operation of the heat generation detection device and the heat generation detection system according to the fifth embodiment of the present invention will be described.
When the feeder wire F generates heat and exceeds a predetermined temperature, as shown in FIG. 10 (B), the opening 4 opens the opening O of the housing 2 and the heat generation notification unit 7 hangs down from the housing 2, The electrical contact of the heat generation detecting unit 15 is closed, and the heat generation detecting unit 15 outputs a heat generation detection signal to the transmission device 13. When the heat generation detecting unit 15 outputs the heat generation detection signal to the transmission device 13, the transmission device 13 transmits the heat generation detection signal, and the reception device 14 receives the heat generation detection signal. As a result, the heat generation of the feeder line F is notified to the portable terminal device owned by the worker, the communication device in the signaling device room, and the like.

The heat generation detecting device and the heat generation detection system according to the fifth embodiment of the present invention have the following effects in addition to the effects of the first to fourth embodiments.
In the fifth embodiment, the heat generation detecting unit 15 detects heat generation of the feeder wire F exceeding a predetermined temperature. Therefore, the heat generation of the feeder wire F can be detected by the heat generation detection unit 15 independently of the switching operation of the switching unit 6, and the heat generation notification unit 7 and the heat generation detection unit 15 can more reliably detect heat. Heat generation of the electric wire F can be detected.

(Other embodiments)
The present invention is not limited to the embodiments described above, and various modifications or changes can be made as described below, and these are also within the scope of the present invention.
(1) In this embodiment, the case where the detection target is the feeder wire F has been described as an example, but the present invention can also be applied to a case where the connection portion C is the detection target. For example, a detection object such as a parallel sleeve connecting the feeder branch line branching from the feeder line F and the feeder line F, a holding clamp or a compression type holding clamp for holding the sleeve portion holding the feeder line F to the support structure, or the like. In this case, the present invention can be applied. Further, in this embodiment, the case where the detection target is a feeder line has been described as an example, but the case where a train line having a structure for supplying electric power to an electric vehicle through a current collector is set as the detection target is also described. The present invention can be applied. For example, a trolley wire with which a contact plate of a current collector of an electric car contacts, a trolley wire supporting the trolley wire, a hanger for hanging the trolley wire on the trolley wire, a feed ear for supplying power from the feeder line F to the trolley wire, and the like. The present invention can be applied to a case where a detection target is used. Further, in this embodiment, the case where the detection target is an electric wire path has been described as an example, but the present invention is also applied to the case where the detection target is a rigid wire such as a rigid suspended train line. can do.

(2) In this embodiment, the case where the heat generation detecting devices 1, 1A, and 1B are mounted on the lower surface of the feeder wire F has been described as an example. However, a plurality of heat detectors 1, 2A and 2B are mounted at intervals in the circumferential direction of the feeder wire F. The present invention can be applied to the case. Further, in the fourth embodiment, the case where the opening operation detecting unit 11 is attached to the opening unit 4 side has been described as an example, but the case where the opening operation detecting unit 11 is attached to the housing unit 2 side is also described in the present invention. Can be applied. Further, in the fourth embodiment and the fifth embodiment, the case where the heat detection devices 1A and 1B are attached to the feeder wire F on the one outlet side and the feeder wire F on the other outlet side of the connection portion C is described as an example. Although described above, the present invention can also be applied to a case where the heat generation detecting devices 1A and 1B are attached to one of the feeder wires F on the exit side. Furthermore, in the fifth embodiment, the case where the heat generation detecting unit 15 is mounted on the upper surface (outer surface) of the upper plate portion 2a of the housing unit 2 has been described as an example. The present invention can also be applied to a case where it is mounted on the lower surface (inner surface) of the upper plate portion 2a.

DESCRIPTION OF SYMBOLS 1, 1A, 1B Heat generation device 2 Housing part 3A, 3B Mounting part 4 Opening part 5 Connecting part 6 Switching part 7 Heat generation notification part 8 Weight part 9A, 9B Fixing part 10 Heat conduction part 10a Adhesion surface 11 Opening operation detection part 12 Heat generation detection system 13 Transmitter 14 Receiver 15 Heat generation detector F Feeder (detection target)
C Connection O Opening

Claims (8)

A heat generation detection device that is attached to the detection target and detects heat generation of the detection target,
A heat generation notifying unit for notifying heat generation of the detection target;
An accommodating section for accommodating the heat generation notifying section,
An opening for opening the opening of the housing portion so that the heat generation notification portion appears from the opening of the housing portion;
When the detection target exceeds a predetermined temperature, a switching unit that switches the opening from a fixed state to a fixed release state, so that the opening is opened downward by its own weight from the storage unit.
A heat detection device comprising: The heat generation detecting device according to claim 1,
The heat generation notifying portion, when the opening portion of the storage portion is opened, hanging from the opening portion of the storage portion,
A heat detection device characterized by the above-mentioned. The heat generation detecting device according to claim 2,
The heat generation notifying portion, when looking at the heat generation notification portion from the length direction of the detection target, hangs down from the opening of the housing portion such that the surface of the heat generation notification portion faces forward,
A heat detection device characterized by the above-mentioned. The heat generation detecting device according to claim 1,
The heat generation notifying portion, when the opening portion of the housing portion is opened by the opening portion, to expand from the opening portion of the housing portion,
A heat detection device characterized by the above-mentioned. The heat generation detecting device according to any one of claims 1 to 4,
By a contact surface where the detection target and the storage unit are in close contact with each other, a heat conduction unit that conducts heat from the detection target to the storage unit is provided.
A heat detection device characterized by the above-mentioned. The heat generation detecting device according to any one of claims 1 to 5,
An opening operation detecting unit that detects an opening operation of the opening unit is provided,
A heat detection device characterized by the above-mentioned. The heat generation detecting device according to any one of claims 1 to 6,
Having a heat generation detecting unit for detecting heat generation exceeding a predetermined temperature of the detection target object,
A heat detection device characterized by the above-mentioned. A heat detection system that detects heat generation of a detection target,
A heat generation detecting device according to any one of claims 1 to 7,
A transmitting device that transmits a detection result of the heat generation detecting device,
A receiving device that receives the detection result transmitted from the transmitting device,
Heat generation detection system comprising:

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