Heat shielding structure of ATS ground coil

Abstract

To suppress a temperature elevation of an ATS ground element body.SOLUTION: A heat insulation structure 2 of an ATS ground element body includes a cover member 12 which has a roof part 14 to cover the whole ground element body 62 from above in a plan view and a longitudinal part 16 that is continuously formed in series to the roof part 14 to cover at least parts of the ground element body 62 on both parallel sides of an extending direction of the rails 80. Also, vent holes 20 constituted of openings or notches are provided in longitudinal parts 16 of the cover member 12. By this arrangement, direct sun light beams from the upper side and in an extending direction of the rails 80 can be shut. Especially, when a train passes, an air stream from the vent hole 20 of one longitudinal part 16 to the vent hole 20 of the other longitudinal part 16 which passes in peripheries of the ground element body 62 located inside of the cover member 12 can be generated. Accordingly, a radiation performance can be improved and a temperature elevation of the ground element body 62 can be effectively suppressed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a heat insulating structure used in an ATS ground coil. [Background technology]

[0002] Conventionally, ATS (Automatic Train Stop) has been used as one of the safety devices for train operation. In general, ATS receives signals from a ground coil installed on the ground side along the rail via an on-board coil installed on the train, and issues alarms and controls the operation of the train's brake device based on information obtained from the received signals. Since the ground coil is exposed to the outdoor environment, some ATSs have measures in place to protect against falling snow, such as the invention in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-039457 A Summary of the Invention [Problem to be solved by the invention]

[0004] Here, there are concerns that some ATS beacons will break down after a period of use that is shorter than their expected service life, shortening the replacement cycle and resulting in large repair costs.It has been discovered that one of the causes of this is that the surroundings and inside of the ATS beacon become hot due to the outdoor environment, such as exposure to direct sunlight, which causes some of the electronic components used in the ATS beacon to break down, leading to the failure of the ATS beacon. The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to suppress a rise in temperature of an ATS ground coil. [Means for solving the problem]

[0005] (Modes of the Invention) The following aspects of the invention are illustrative of the configuration of the present invention, and are described in terms of items to facilitate understanding of the various configurations of the present invention. Each item does not limit the technical scope of the present invention, and the technical scope of the present invention may include any embodiment in which some of the components of each item are replaced or deleted, or other components are added, while taking into account the best mode for carrying out the invention.

[0006] (1) A heat-shielding structure used for an ATS ground coil whose ground coil body is installed along a rail on a sleeper via a mounting base, the heat-shielding structure for an ATS ground coil including a cover member including a roof portion that covers the entire ground coil body from above in a plan view, and front and rear portions that are formed continuously from the roof portion and cover at least a portion of both sides of the ground coil body in a direction parallel to the extension direction of the rail, the front and rear portions being provided with ventilation holes consisting of openings or notches.

[0007] The heat shielding structure of the ATS ground coil described in this section includes a cover member having a roof portion and front and rear portions, and the roof portion of the cover member has a size and shape that covers the entire ground coil body of the ATS ground coil from above in a plan view. Therefore, direct sunlight is blocked from at least above the ground coil body, and the temperature rise of the ground coil body caused by direct sunlight is suppressed. In addition, the front and rear portions of the cover member are formed continuously from the roof portion and cover at least a part of both sides of the ground coil body in the direction parallel to the extension direction of the rail, so that direct sunlight from the extension direction of the rail is also blocked. Moreover, since the front and rear portions are provided with vents consisting of openings or notches, air flows from the vents of one front and rear portions to the vents of the other front and rear portions around the ground coil body located inside the cover member, especially when a train passes over the ATS ground coil. This improves heat dissipation performance, and the temperature rise of the ground coil body is more effectively suppressed.

[0008] (2) In the above (1), a heat insulating structure for an ATS ground coil includes a fixing means for fixing the cover member to the mounting base without interfering with the ground coil main body. The heat shielding structure of the ATS ground coil described in this section further includes a fixing means, which fixes the cover member to the mounting base of the ATS ground coil on which the ground coil main body is installed, without interfering with the ground coil main body. This makes it possible to easily attach the cover member to an existing ATS ground coil in which the ground coil main body is installed via a mounting base, without making any changes to the ground coil main body.

[0009] (3) In the above paragraph (2), the mounting base fixes the ground coil body to the sleeper, and the fixing means includes a screw seat fixed to the mounting base and a plurality of long bolts having one end connected to the roof portion and the other end inserted into the screw seat at a position avoiding the sleeper, and the penetration length of the plurality of long bolts into the screw seat is adjustable. This is a heat-shielding structure of an ATS ground coil.

[0010] The heat shielding structure of the ATS ground coil described in this section is applied to an ATS ground coil having a structure in which the mounting base fixes the ground coil body to the sleeper, and the fixing means includes a screw seat and a plurality of long bolts. The screw seat is fixed to the mounting base of the ATS ground coil, and each of the plurality of long bolts has one end connected to the roof part and the other end penetrated into the screw seat at a position where it avoids the sleeper. In other words, the roof part is supported by the plurality of long bolts penetrated into the screw seat so that the roof part is located further above the ground coil body installed on the sleeper via the mounting base. Furthermore, the penetration length of the other end side of the plurality of long bolts into the screw seat is adjustable, and the penetrated part does not come into contact with the sleeper. Therefore, the installation height of the roof part connected to one end side can be adjusted to any height by adjusting the penetration length of the other end side of the long bolt. As a result, the height of the space between the mounting base to which the screw seat is fixed and the roof part can be adjusted, so that it can be adapted to various sizes and shapes of ground coil bodies installed in that space, improving versatility.

[0011] (4) In the above items (1) to (3), the roof portion is a plate-like structure bent with a bending line parallel to the extension direction of the sleepers, so that the bending line is located at the upper end. The heat shielding structure of the ATS ground coil described in this section is such that the roof part of the cover member is in the form of a plate folded at a folding line parallel to the extension direction of the sleepers, and the folding line is located at the top end. In other words, it has a so-called gable roof shape with the extension direction of the sleepers as the gable side. As a result, compared to when the roof part is flat, dirt that has adhered to it is more easily washed away by rainwater, etc., and air convection is more easily generated inside the cover member, so both the adhesion of dirt and temperature rise are suppressed.

[0012] (5) In the above items (1) to (3), the cover member has a spherical shape with its upper end located approximately at the center position in a plan view. In the heat shielding structure of the ATS ground coil described in this section, the cover member is spherical with the upper end located approximately at the center in plan view. That is, the cover member extends obliquely downward or downward while curving from the approximately center in plan view toward the periphery, covering not only the upper part of the ground coil body but also the entire periphery of the ground coil body in plan view, at least a part of the range from the upper part. As a result, the roof part and the front and rear parts are integrally formed, and direct sunlight is more efficiently blocked, and dirt that has adhered to the ground coil body is easily washed away by rainwater, etc., thereby suppressing both temperature rise and adhesion of dirt. Moreover, the curved spherical shape of the cover member improves rigidity.

[0013] (6) In the above items (1) to (4), the cover member is formed continuously from the roof portion and includes a side portion covering at least a portion of both sides of the ground coil main body in a direction parallel to the extension direction of the sleepers. In the heat shielding structure of the ATS beacon described in this section, the cover member includes a side portion in addition to the roof portion and the front and rear portions, and the side portion is formed continuously from the roof portion and covers at least a part of both sides of the beacon main body in the direction parallel to the extension direction of the sleepers. This not only blocks direct sunlight from the extension direction of the sleepers, but also makes it easier for air convection to occur inside the cover member, thereby further suppressing the temperature rise of the beacon main body.

[0014] (7) A heat-insulating structure for an ATS ground coil according to any one of (1) to (6) above, wherein the cover member is coated with a heat-insulating paint. The heat-insulating structure of the ATS ground coil described in this section has a heat-insulating paint applied to the cover member, which further suppresses the temperature rise of the ground coil body arranged inside the cover member. Effect of the Invention

[0015] Since the present invention has the above-mentioned configuration, it is possible to suppress the temperature rise of the ATS ground coil. [Brief description of the drawings]

[0016] [Figure 1] 1A and 1B show a heat shielding structure for an ATS ground coil according to a first embodiment of the present invention, in which (a) is a perspective view of the heat shielding structure applied to an ATS ground coil, and (b) is a side view of the same state. [Diagram 2] 5A and 5B show a heat shielding structure for an ATS ground coil according to a second embodiment of the present invention, in which (a) is a perspective view of the heat shielding structure applied to an ATS ground coil, and (b) is a side view of the same state. [Diagram 3] 13A and 13B show a heat shielding structure for an ATS ground coil in accordance with a third embodiment of the present invention, in which (a) is a perspective view of a cover member, and (b) is a schematic side view of the state in which it is applied to an ATS ground coil. [Figure 4] 13A and 13B show a heat shielding structure for an ATS ground coil according to a fourth embodiment of the present invention, in which (a) is a perspective view of a cover member, and (b) is a schematic side view of the state in which it is applied to an ATS ground coil. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, the embodiments of the present invention will be described with reference to the accompanying drawings. Here, detailed descriptions of the same or corresponding parts as those in the prior art will be omitted, and the same or corresponding parts are indicated by the same reference numerals throughout the drawings. Fig. 1 shows a heat insulating structure 2 for an ATS ground coil according to a first embodiment of the present invention, which is applied to an ATS ground coil 60 having a structure in which a ground coil main body 62 is fixed to a sleeper 82 via a mounting base 64. Note that in Fig. 1, a rail 80 on the sleeper 82 is shown in a cutaway view. As shown in the figure, the heat insulating structure 2 for an ATS ground coil is roughly composed of a cover member 12 that covers the ground coil main body 62, and a fixing means 30 that fixes the cover member 12.

[0018] In this embodiment, the cover member 12 includes a roof portion 14 and two front and rear portions 16. The roof portion 14 is large enough to cover the ground element body 62 of the ATS ground element 60 in plan view, has a so-called gable roof shape, and is a rectangular plate shape in plan view bent at a bending line L parallel to the extension direction of the sleepers 82. Furthermore, a plate-shaped reinforcing member 42 bent along the shape of the roof portion 14 is attached near the center of the roof portion 14 in plan view, thereby increasing its strength. The two front and rear portions 16 are integrally formed continuously from the left and right edge of the roof portion 14 in FIG. 1(b) and are rectangular plate shapes extending downward from those edge edges.

[0019] That is, the two front and rear parts 16 have a surface perpendicular to the extending direction of the rail 80, in other words, a surface perpendicular to the traveling direction of the train running on the rail 80, and the ventilation openings 20 are formed on these surfaces, penetrating to the back surface. The ventilation openings 20 in this embodiment are rectangular openings corresponding to the shape of the front and rear parts 16, and the ventilation openings 20 of the two front and rear parts 16 are positioned opposite each other along the traveling direction of the train. Such a cover member 12 is preferably formed of a material that does not interfere with communication between the on-board device and the ground device 60 of the ATS, and that takes into consideration heat insulation, heat insulation, heat dissipation, strength, and the like, and is formed of, for example, polycarbonate resin. Furthermore, in the cover member 12 of this embodiment, the roof part 14 and the two front and rear parts 16 are coated with a heat insulating paint 40, and any heat insulating paint that takes into consideration the heat insulating property, the material of the cover member 12, and the like is used for such heat insulating paint 40.

[0020] On the other hand, the fixing means 30 of this embodiment includes four long bolts 32, two screw seats 34, and four adjustment spacers 36. The upper end side of each of the four long bolts 32 is connected to the roof part 14 of the cover member 12 via the adjustment spacer 36, and each of the four adjustment spacers 36 is attached to the roof part 14 by penetrating the roof part 14. The two screw seats 34 are fixed by bolts, nuts, etc., near both left and right ends in FIG. 1(b) away from the sleeper 82 on the back side of the mounting base 64 that fixes the ground coil main body 62 to the sleeper 82. Each of the screw seats 34 has two penetration holes, and the lower end side of the long bolt 32 is inserted into these penetration holes. The penetration amount of the long bolt 32 into the screw seat 34 can be adjusted by rotating the long bolt 32, and the penetration depth of the long bolt 32 is maintained by a nut on the screw seat 34, etc.

[0021] 1(b), the lower end portion of the long bolt 32 protruding downward from the screw seat 34 is separated from the sleeper 82, and a sufficient distance is ensured between the insertion hole of the screw seat 34 through which the long bolt 32 is inserted and the sleeper 82 so that the long bolt 32 will not come into contact with the sleeper 82 even if it is inserted deeper. Any material that can exert the necessary and sufficient strength to support the cover member 12 is used for each member constituting the fixing means 30. For reference, it is preferable that the heat insulating structure 2 of the ATS ground coil configured as described above has a strength that will not break even if a person accidentally stands on the cover member 12, and the load resistance is, for example, 200 kg or more. In addition, the heat insulating structure 2 of the ATS ground coil has an overall shape and size that does not interfere with the claws of a multiple tamper of a track maintenance machine.

[0022] Next, a heat insulating structure 4 of an ATS ground coil according to a second embodiment of the present invention will be described with reference to Fig. 2. In Fig. 2, the same parts as or corresponding parts to the heat insulating structure 2 of an ATS ground coil according to the first embodiment of the present invention are given the same reference numerals. Note that, with respect to the heat insulating structure 4 of an ATS ground coil according to the second embodiment of the present invention, only the parts that differ from the heat insulating structure 2 of an ATS ground coil shown in Fig. 1 will be described, and the configuration and the effects of the parts that are the same as those of the heat insulating structure 2 of an ATS ground coil will not be described. Also, as in Fig. 1, in Fig. 2, the rail 80 on the sleeper 82 is shown cut away.

[0023] As shown in Fig. 2, the heat shielding structure 4 for an ATS ground coil according to the second embodiment of the present invention is roughly composed of a cover member 12 and a fixing means 30, and the shape of the cover member 12 is significantly different from that of the heat shielding structure 2 for an ATS ground coil shown in Fig. 1. That is, the cover member 12 of this embodiment has a spherical shape that is elongated and biased in a direction parallel to the extending direction of the rail 80, with the center position C in a plan view as the upper end, and the roof portion 14 including the center position C to the two front and rear portions 16 and the two side portions 24 are integrally formed from a smoothly curved plate material. Such a smooth spherical cover member 12 is formed by any method according to the material of the cover member 12, such as cutting or hand layup molding.

[0024] The two front and rear parts 16 are located on both the left and right sides of the roof part 14 in FIG. 2(b) (both sides in the direction parallel to the extending direction of the rail 80), protruding obliquely downward from the roof part 14, and in this embodiment, a vent hole 20 consisting of a notch provided from the lower side is formed. The two side parts 24 are located on both sides of the roof part 14 in the direction parallel to the extending direction of the sleepers 82, and protruding obliquely downward from the roof part 14. The roof part 14, the two front and rear parts 16, and the two side parts 24 that constitute the cover member 12 in this way are coated with a heat insulating paint 40. The cover member 12 is also provided with four recesses, and is connected to the upper ends of the four long bolts 32 of the fixing means 30 via the adjustment spacers 36 attached to the recesses. The other configuration of the fixing means 30 is the same as that of the heat insulating structure 2 of the ATS ground coil shown in FIG. 1.

[0025] Next, referring to Fig. 3 and Fig. 4, the heat insulating structures 6, 8 of the ATS ground coil according to the third and fourth embodiments of the present invention will be described. In Fig. 3 and Fig. 4, the same parts as or corresponding parts to the heat insulating structures 2, 4 of the ATS ground coil according to the first and second embodiments of the present invention are given the same reference numerals. Note that, for the heat insulating structures 6, 8 of the ATS ground coil according to the third and fourth embodiments of the present invention, only the parts different from the heat insulating structures 2, 4 of the ATS ground coil shown in Fig. 1 and Fig. 2 will be described, and the configurations and effects of the parts similar to those of the heat insulating structures 2, 4 of the ATS ground coil will not be described. In Fig. 3(b) and Fig. 4(b), the left-right direction in the figures corresponds to the extension direction of the rail 80, and the direction perpendicular to the paper surface in the figures corresponds to the extension direction of the sleepers 82.

[0026] First, as shown in FIG. 3, the heat shielding structure 6 for an ATS ground coil according to the third embodiment of the present invention is roughly composed of a cover member 12 and a fixing means 30, and is different from the heat shielding structure 2 for an ATS ground coil shown in FIG. 1 only in the shape of the roof portion 14 of the cover member 12. That is, the roof portion 14 of the cover member 12 of this embodiment is a rectangular plate in plan view, and is not particularly processed, such as by bending. Then, from both end edges of the roof portion 14 in a direction parallel to the extension direction of the rail 80 (left and right direction in FIG. 3(b)), a rectangular plate-shaped front and rear portion 16 extends downward, and a vent hole 20 consisting of a rectangular opening is formed there. Although it is illustrated in a simplified manner in FIG. 3(b), the configuration of the fixing means 30 and the method of fixing the cover member 12 by the fixing means 30 are generally similar to the fixing means 30 in FIG. 1 and FIG. 2, and the cover member 12 is supported above the ground coil main body 62 by a plurality of long bolts 32 whose penetration amount can be adjusted.

[0027] Next, as shown in Fig. 4, a heat shielding structure 8 for an ATS ground coil according to a fourth embodiment of the present invention is roughly composed of a cover member 12 and fixing means 30, and differs from the heat shielding structure 6 for an ATS ground coil in Fig. 3 only in that the cover member 12 is further provided with two side portions 24. That is, the cover member 12 of this embodiment has rectangular plate-shaped side portions 24 extending downward from both end edges of the roof portion 14, which has a rectangular plate shape in a plan view, in a direction parallel to the extension direction of the sleepers 82 (a direction perpendicular to the paper surface in Fig. 4(b)). The two side portions 24 are coated with heat shielding paint 40, just like the roof portion 14 and the two front and rear portions 16. Although shown in a simplified manner in Figure 4(b), the configuration of the fixing means 30 and the method of fixing the cover member 12 by the fixing means 30 are generally similar to those of the fixing means 30 in Figures 1 and 2, and the cover member 12 is supported above the ground coil main body 62 by multiple long bolts 32 whose penetration amount can be adjusted.

[0028] Here, the heat shielding structures 2, 4, 6, 8 of the ATS ground coil according to the embodiment of the present invention are not limited to the configurations shown in Figs. 1 to 4, and for example, the shape and size of the openings and cutouts forming the ventilation holes 20 may be different from those shown in Figs. 1 to 4. Furthermore, the shape of the cover member 12 is arbitrary as long as it has a roof portion 14 large enough to cover the entire ground coil body 62 and two front and rear portions 16 in which the ventilation holes 20 are provided. Furthermore, the configuration of the fixing means 30 may be arbitrary as long as it can fix the cover member 12 without interfering with the ground coil body 62, and even in the case of a configuration using long bolts 32, the number of bolts may be different from those shown in Figs. 1 to 4. Furthermore, the heat shielding paint 40 does not need to be applied to the cover member 12 as long as the required heat shielding effect is sufficiently obtained.

[0029] According to the embodiment of the present invention having the above-mentioned configuration, the following operational effects can be obtained. That is, as shown in Fig. 1 to Fig. 4, the heat shielding structures 2, 4, 6, 8 of the ATS ground coil according to the first to fourth embodiments of the present invention include a cover member 12 having a roof portion 14 and front and rear portions 16, and the roof portion 14 of this cover member 12 has a size and shape that covers the entire ground coil body 62 of the ATS ground coil 60 from above in a plan view. Therefore, it is possible to block direct sunlight from at least above the ground coil body 62, and to suppress a temperature rise in the ground coil body 62 caused by direct sunlight.

[0030] In addition, the front and rear parts 16 of the cover member 12 are formed continuously from the roof part 14 and cover at least a part of both sides of the ground coil body 62 in the direction parallel to the extending direction of the rail 80, so that it is possible to block direct sunlight from the extending direction of the rail 80. Moreover, since the front and rear parts 16 are provided with the ventilation openings 20 consisting of openings or notches, it is possible to generate an air flow passing around the ground coil body 62 located inside the cover member 12 from the ventilation openings 20 of one front and rear part 16 to the ventilation openings 20 of the other front and rear part 16, particularly when a train passes over the ATS ground coil 60. This improves the heat dissipation performance, so that it is possible to more effectively suppress the temperature rise of the ground coil body 62.

[0031] Moreover, the heat shielding structures 2, 4, 6, 8 of the ATS ground coil according to the first to fourth embodiments of the present invention further include a fixing means 30, and this fixing means 30 fixes the cover member 12 to the mounting base 64 of the ATS ground coil 60 on which the ground coil body 62 is installed, without interfering with the ground coil body 62. This makes it possible to easily attach the cover member 12 to an existing ATS ground coil 60 having a structure in which the ground coil body 62 is installed via the mounting base 64, without making any changes to the ground coil body 62.

[0032] Furthermore, the heat shield structures 2, 4, 6, and 8 of the ATS ground coil according to the first to fourth embodiments of the present invention are applied to an ATS ground coil 60 having a structure in which an attachment base 64 fixes a ground coil body 62 to a sleeper 82, and the fixing means 30 includes a screw seat 34 and a plurality of long bolts 32. The screw seat 34 is fixed to the attachment base 64 of the ATS ground coil 60, and each of the plurality of long bolts 32 has one end connected to the roof portion 14 and the other end inserted into the screw seat 34 at a position that avoids the sleeper 82. In other words, the roof portion 14 is supported by the plurality of long bolts 32 inserted into the screw seat 34 so that the roof portion 14 is disposed further above the ground coil body 62 that is installed on the sleeper 82 via the attachment base 64.

[0033] Furthermore, the penetration length of the other end of each of the long bolts 32 into the screw seat 34 is adjustable, and the penetrated portion does not come into contact with the sleeper 82. Therefore, by adjusting the penetration length of the other end of the long bolt 32, the installation height of the roof section 14 connected to one end can be adjusted to any height. This allows the height of the space between the mounting base 64 to which the screw seat 34 is fixed and the roof section 14 to be adjusted, making it possible to accommodate ground coil bodies 62 of various sizes and shapes that are installed in that space, thereby improving versatility. In addition, by applying the heat insulating paint 40 to the cover member 12, the temperature rise of the ground coil main body 62 arranged inside the cover member 12 can be further suppressed.

[0034] On the other hand, in the heat shield structure 2 of the ATS ground coil according to the first embodiment of the present invention, as shown in Fig. 1, the roof portion 14 of the cover member 12 is in the form of a plate folded at a folding line L parallel to the extension direction of the sleepers 82, with the folding line L located at the upper end. In other words, it has a so-called gable roof shape with the extension direction of the sleepers 82 as the gable side. This makes it easier for dirt to flow away by rainwater and the like compared to when the roof portion 14 is flat, and makes it easier to generate air convection inside the cover member 12, making it possible to suppress both the adhesion of dirt and temperature rise.

[0035] On the other hand, in the heat shielding structure 4 of the ATS ground coil according to the second embodiment of the present invention, as shown in Fig. 2, the cover member 12 has a spherical shape with the upper end at the approximate center position C in the plan view. That is, the cover member 12 extends obliquely downward or downward while curving from the approximate center position C in the plan view toward the periphery, and can cover not only the upper part of the ground coil main body 62 but also the entire periphery of the ground coil main body 62 in the plan view, at least a part of the range from the upper part. As a result, the roof part 14 and the front and rear parts 16 are integrally formed, which can more efficiently block direct sunlight and can easily wash away attached dirt with rainwater, etc., thereby suppressing both temperature rise and adhesion of dirt. Moreover, since the cover member 12 has a curved spherical shape, it is also possible to improve rigidity.

[0036] 2 and 4, in the heat shielding structures 4, 8 of the ATS ground coil according to the second and fourth embodiments of the present invention, the cover member 12 includes side portions 24 in addition to the roof portion 14 and the front and rear portions 16, and these side portions 24 are formed continuously from the roof portion 14 and cover at least a portion of both sides of the ground coil body 62 in the direction parallel to the extension direction of the sleepers 82. This not only makes it possible to block direct sunlight from the extension direction of the sleepers 82, but also makes it easier to generate air convection inside the cover member 12, making it possible to further suppress the temperature rise of the ground coil body 62. [Explanation of symbols]

[0037] 2, 4, 6, 8: heat-shielding structure of ATS ground coil, 12: cover member, 14: roof portion, 16: front and rear portions, 20: ventilation hole, 24: side portion, 30: fixing means, 32: long bolt, 34: screw seat, 40: heat-shielding paint, 60: ATS ground coil, 62: ground coil body, 64: mounting base, 80: rail, 82: sleeper, L: bending line, C: center position

Claims

1. A heat insulating structure used for an ATS ground coil in which a ground coil body is installed along a rail on a sleeper via a mounting base, A cover member including a roof portion that covers the entire ground device body from above in a plan view, and front and rear portions that are formed continuously from the roof portion and cover at least a portion of both sides of the ground device body in a direction parallel to the extension direction of the rail, A heat insulating structure for an ATS ground coil, characterized in that ventilation openings consisting of openings or notches are provided at the front and rear portions.

2. 2. The heat insulating structure of the ATS ground coil according to claim 1, further comprising fixing means for fixing the cover member to the mounting base without interfering with the ground coil body.

3. The mounting base fixes the ground coil body to the sleeper, the fixing means includes a screw seat fixed to the mounting base, and a plurality of long bolts each having one end connected to the roof portion and the other end inserted into the screw seat at a position avoiding the sleepers, 3. The heat insulating structure of an ATS ground coil according to claim 2, wherein the plurality of long bolts are adjustable in the length of penetration into the screw seat.

4. A heat-shielding structure for an ATS ground coil as described in any one of claims 1 to 3, characterized in that the roof portion is in the form of a plate bent with a bending line parallel to the extension direction of the sleepers, the bending line being positioned at the upper end.

5. 4. The heat insulating structure of an ATS ground coil according to claim 1, wherein the cover member has a spherical shape with an upper end located approximately at the center position in a plan view.

6. A heat-shielding structure of an ATS ground coil as described in any one of claims 1 to 4, characterized in that the cover member is formed continuously from the roof portion and includes side portions that cover at least a portion of both sides of the ground coil main body in a direction parallel to the extension direction of the sleepers.

7. 7. The heat insulating structure of an ATS ground coil according to claim 1, wherein the cover member is coated with a heat insulating paint.

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