Tag with built-in battery

Abstract

To provide a tag with a built-in battery which can easily perform the attachment / detachment of a lid body without using a large number of fastening members and hardly causes the coming-off of the lid body when external vibration or impact is applied.SOLUTION: A tag with a built-in battery includes: a communication device 11 that includes an IC chip and an antenna; a battery 12 that drives the communication device 11; and a housing 13 that houses the communication device 11 and the battery 12 inside. The housing 13 includes a housing main body 15 and a lid body 16. The housing main body 15 has a cylindrical main body-side peripheral wall portion, and the communication device 11 is placed inside. The lid body 16 has: a top plate portion that closes an opening 14 of the main body-side peripheral wall portion; and a lid body-side peripheral wall portion that covers an outer peripheral surface of the main body-side peripheral wall portion. A spiral engaging portion and an engaged portion that is engaged with the engaging portion are provided between the outer peripheral surface of the main body-side peripheral wall portion and an inner peripheral surface of the lid body-side peripheral wall portion.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a battery-equipped tag that incorporates a communication device and a battery. [Background technology]

[0002] In recent years, electronic tags with contactless data transmission and reception functions have become widespread as a method for managing the location of moving objects in fields such as logistics, material management, inventory management, and warehouse management. Known examples of this type of electronic tag include LPWA (Low Power Wide Area) electronic tags that perform LPWA communication, and RFID tags (see, for example, Patent Document 1). LPWA electronic tags have built-in batteries for powering them, and active RFID tags also have built-in batteries for powering them. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-218829 Summary of the Invention [Problem to be solved by the invention]

[0004] In the electronic tag with a built-in battery described above (hereinafter referred to as a "battery-equipped tag"), the battery has a limited lifespan, so the housing must be designed to allow the battery to be replaced. For this reason, the housing of a battery-equipped tag is designed to include a housing main body that houses the communication device and battery, and a lid that closes the opening in the housing main body for battery replacement. The lid is usually detachably attached to the housing main body with multiple fastening members (screws).

[0005] However, in the case of a method in which the lid is detachably attached to the housing body by a plurality of fastening members, the large number of fastening members makes it cumbersome to remove and attach the lid.

[0006] Another known method for attaching the lid is to slidably engage the lid with the housing body in a direction intersecting the fastening direction and fasten the lid to the housing body with a single fastening member. However, while this method makes it easy to attach and remove the lid, it is difficult to secure the lid to the housing body with sufficient strength, and there is a concern that the lid may fall off the housing body when external vibrations or impacts are applied.

[0007] The present invention provides a battery-equipped tag whose lid can be easily attached and detached without using a large number of fastening members, and whose lid is less likely to fall off when subjected to external vibrations or impacts. [Means for solving the problem]

[0008] A battery-equipped tag according to one embodiment of the present invention comprises a communication device including an IC chip and an antenna, a battery that powers the communication device, and a housing that houses the communication device and the battery, the housing having a cylindrical body-side peripheral wall portion and a housing main body in which the battery is placed, a top plate portion that closes the opening of the body-side peripheral wall portion, and a lid having a lid-side peripheral wall portion that covers the outer surface of the body-side peripheral wall portion, and between the outer surface of the body-side peripheral wall portion and the inner surface of the lid-side peripheral wall portion, a spiral engaging portion and an engaged portion that engages with the engaging portion are provided.

[0009] When fixing the lid to the housing body of the battery-equipped tag with the above configuration, the lid is aligned with the body-side peripheral wall of the housing body and then rotated in one direction. This causes the spiral engaging portion to engage with the engaged portion, fixing the lid to the housing body. At this time, the top plate of the lid closes the opening in the body-side peripheral wall, and the lid-side peripheral wall covers the outer periphery of the body-side peripheral wall of the housing body. As a result, the communication device and battery are covered on the outside by the housing and protected from the outside by the housing. When removing the cover for battery replacement, the cover is rotated in the other direction relative to the housing body, disengaging the spiral engaging portion from the engaged portion and removing the cover from the housing body. This opens an opening at the end of the body-side peripheral wall, allowing battery replacement.

[0010] The housing main body may have a flange portion that protrudes radially outward from near the end of the main body side peripheral wall portion opposite the opening and faces the end face of the lid body side peripheral wall portion of the lid body, and a first sealing member that is in close contact with both the flange portion and the end face of the lid body side peripheral wall portion may be interposed between the flange portion and the end face of the lid body side peripheral wall portion, and a second sealing member that is in close contact with both the end face of the main body side peripheral wall portion and the top plate portion of the lid body may be interposed between the end face of the main body side peripheral wall portion and the top plate portion of the lid body.

[0011] In this case, when the lid is tightened onto the housing body, the first seal between the flange of the housing body and the end face of the lid-side peripheral wall comes into tight contact with both, and the second seal between the end face of the body-side peripheral wall and the top plate of the lid comes into tight contact with both. As a result, the inside of the housing is doubly sealed by the first seal and the second seal, more reliably preventing water and dust from entering the inside of the housing.

[0012] The housing body and the lid body may be provided with a loosening control portion that engages with each other and controls rotation of the lid body in the loosening direction when the lid body is tightened in the engagement direction between the engaging portion and the engaged portion by more than a specified amount.

[0013] In this case, if the lid is tightened to the housing body in the tightening direction beyond a specified amount, the loosening prevention part will prevent the lid from rotating in the loosening direction. Therefore, even if the lid attempts to rotate in the loosening direction due to vibration or impact, the loosening prevention part will prevent the lid from rotating in the loosening direction. Therefore, by adopting this configuration, it is possible to prevent the lid from loosening or falling off.

[0014] The housing body and the lid may be provided with tightening start marks that indicate tightening start positions for the two.

[0015] In this case, when attaching the lid to the housing body, by aligning the tightening start marks on the housing body and the lid, it is possible to efficiently start tightening the lid to the housing body. Therefore, when this configuration is adopted, it is possible to improve the workability of assembling the lid.

[0016] The housing body and the lid may be provided with tightening completion marks that indicate the tightening completion positions of the two.

[0017] In this case, when tightening the lid to the housing body, by stopping tightening at the position where the tightening completion marks on the housing body and the lid are aligned, it is possible to avoid over-tightening the lid.

[0018] A pair of fixing pieces may be provided near the end opposite the opening of the main body side peripheral wall portion, each protruding radially outward from positions corresponding to opposite positions on the outer periphery of the main body side peripheral wall portion, and these fixing pieces may serve as connecting parts for the object to be installed.

[0019] In this case, a pair of fixing pieces that are connected to the installation object extend radially outward from positions that correspond to opposite positions on the outer periphery of the main body peripheral wall. This makes it possible to attach the battery-equipped tag to the installation object in a balanced manner while avoiding an increase in the size of the battery-equipped tag. Therefore, when this configuration is adopted, it is possible to ensure stable installation on the installation object while avoiding an increase in the size of the battery-equipped tag. [Effects of the Invention]

[0020] The above-mentioned battery-embedded tag has a spiral engaging portion and an engaged portion that engages with the engaging portion between the outer surface of the main body side peripheral wall portion and the inner surface of the lid side peripheral wall portion, and is structured so that the lid can be attached to and detached from the housing body by rotating the lid body in a predetermined direction relative to the housing body. Therefore, when the above-mentioned battery-equipped tag is used, the lid can be easily attached and detached without using a large number of fastening members, and the lid can be prevented from falling off due to external vibrations or impacts. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a perspective view of a mobile object to which a battery-integrated tag according to an embodiment is attached. [Figure 2] FIG. 2 is a plan view of the battery-equipped tag according to the embodiment. [Figure 3] FIG. 2 is an exploded perspective view of the battery-equipped tag according to the embodiment. [Figure 4] FIG. 2 is a perspective view of a housing body of the battery-equipped tag according to the embodiment. [Figure 5] FIG. 2 is a plan view of a housing body of the battery-embedded tag according to the embodiment. [Figure 6] FIG. 2 is a perspective view of a cover of the battery-embedded tag according to the embodiment. [Figure 7] 10 is a plan view showing the state in which the fastening start mark on the lid body of the battery-embedded tag and the casing body of the embodiment are aligned. FIG. [Figure 8] 10 is a perspective view showing a mark indicating when the lid of the battery-embedded tag is completely fastened in the embodiment; FIG. [Figure 9] 10 is a perspective view showing a state in which the cover of the battery-embedded tag and the fastening completion mark of the housing body are aligned with each other according to the embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] Next, an embodiment of the present invention will be described with reference to the drawings.

[0023] FIG. 1 is a perspective view of a moving object 1 to which a battery-integrated tag 10 according to an embodiment is attached. The mobile body 1 is, for example, the item itself to be managed, such as materials or products, or an item storage member, such as a cart or pallet, on which the item is placed. The battery-equipped tag 10 can be detachably attached to the mobile body 1 (the object to be installed) by, for example, fastening with screws.

[0024] FIG. 2 is a plan view of the battery-embedded tag 10, and FIG. 3 is an exploded perspective view of the battery-embedded tag 10. As shown in FIG. The battery-equipped tag 10 comprises a communication device 11 including an IC chip and an antenna, a button-type battery 12 that powers the communication device 11, and a housing 13 that houses the communication device 11 and the battery 12. The communication device 11 stores ID information and the like in its IC chip. The battery-equipped tag 10 is an LPWA electronic tag, and is powered by the battery 12 to transmit the ID information and the like stored in the IC chip to the outside via the antenna. The battery tag 10 may also incorporate various sensors such as a temperature sensor, a GPS receiver, etc. In this case, the battery tag 10 can transmit not only its own ID information but also information detected by the various sensors and location information obtained by the GPS to the outside.

[0025] The housing 13 includes a housing body 15 having an opening 14 for placing the communication device 11 and the battery 12 therein, and a lid 16 that is detachably attached to the housing body 15 so as to close the opening 14. The housing body 15 and the lid 16 are formed of, for example, a hard resin, etc. However, the material of the housing 13 is not limited to this.

[0026] FIG. 4 is a perspective view of the housing body 15, and FIG. 5 is a plan view of the housing body 15. As shown in FIG. The housing main body 15 includes a circular bottom wall portion 17 on which the communication device 11 and the battery 12 are placed, a short-axis cylindrical peripheral wall portion 18 that protrudes from the periphery of the bottom wall portion 17 in a direction perpendicular to the bottom wall portion 17, an annular flange portion 19 that protrudes from the periphery of the bottom wall portion 17 radially outward beyond the peripheral wall portion 18, and a pair of fixing pieces 20 that protrude radially outward from two positions on the outer periphery of the flange portion 19. The pair of fixing pieces 20 protrude radially outward from opposite positions on the outer periphery of the flange portion 19 (positions that correspond to the opposite positions on the outer periphery of the peripheral wall portion 18). In this embodiment, the peripheral wall 18 of the housing body 15 constitutes the housing-side peripheral wall.

[0027] The protruding height of the peripheral wall 18 is sufficiently small compared to the outer diameter of the bottom wall 17. In other words, the housing body 15 has a generally flat shape with a small height. The opening 14 described above is formed at the end of the protruding direction of the peripheral wall 18. The communication device 11 and the battery 12 are placed inside the peripheral wall 18 through the opening 14.

[0028] A band-shaped protrusion 21 is provided on the outer peripheral surface of the peripheral wall 18 and is formed in a spiral shape along the outer peripheral surface. The band-shaped protrusion 21 extends continuously from near the base of the peripheral wall 18 to near the protruding end of the peripheral wall 18. In this embodiment, the strip-shaped projection 21 forms a spiral engaging portion.

[0029] In the following, for ease of explanation, the end of the band-shaped protrusion 21 that is close to the protruding end of the peripheral wall portion 18 will be referred to as the "starting end," and the end that is close to the base of the peripheral wall portion 18 will be referred to as the "ending end." A recess 22 is formed in a region close to the terminal end of the band-shaped projection 21. The recess 22 constitutes a loosening prevention portion together with a protrusion 23 on the lid 16 side, which will be described later. The recess 22 is formed on the surface of the band-shaped projection 21 facing the upper surface of the flange 19. The recess 22 is capable of engaging with the protrusion 23 on the lid 16 side.

[0030] The fixing piece 20 also has a base portion 20a that is approximately the same thickness as the flange portion 19, and a fastening block portion 20b that is thicker than the base portion 20a. As shown in FIG. 5, the base portion 20a is a plate-like portion that is approximately triangular in plan view, with two sides extending tangentially from the outer circumferential surface of the circular flange portion 19. The fastening block portion 20b is formed integrally with a substantially right-angled corner portion of the base portion 20a. The fastening block portion 20b has an insertion hole 24 that penetrates the fastening block portion 20b in the plate thickness direction. The insertion hole 24 of the fastening block portion 20b is designed to allow the shank of a screw 25 (see FIGS. 1 and 2) to be inserted therethrough for fastening the battery-embedded tag 10 to the moving object 1.

[0031] Furthermore, an annular first seal member 26 can be placed on the upper surface of the flange 19 (the surface on the protruding side of the peripheral wall 18). The first seal member 26 is interposed between an end surface 35a of a peripheral wall 35 (lid-side peripheral wall) of the lid 16, which will be described later, and seals the gap between the housing main body 15 and the lid 16. The first seal member 26 is formed to have approximately the same width as the upper surface of the flange 19. The annular first seal member 26 is fitted onto the peripheral wall 18 of the housing main body 15 from the protruding end side, and is placed on the upper surface of the flange 19.

[0032] FIG. 6 is a perspective view of the cover 16 as seen from the rear side. The lid 16 includes a top plate 30 that closes the opening 14 in the peripheral wall 18 of the housing body 15, and a peripheral wall 35 that covers the outer periphery of the peripheral wall 18 of the housing body 15. In this embodiment, the peripheral wall 35 forms the lid-side peripheral wall.

[0033] The top panel 30 is formed in a disk shape. A circular raised wall 31 is formed on the back surface of the top panel 30 (the surface facing the opening 14 of the housing body 15) and is concentric with the outer circumferential circle of the top panel 30. A small-diameter pressing protrusion 32 is formed at the center of the back surface of the top panel 30. The tip of this pressing protrusion 32 abuts against the top surface of the communication device 11 inside the housing body 15 when the lid 16 is attached to the housing body 15. This prevents the communication device 11 from rattling inside the housing body 15. In this embodiment, the cover 16 is fixed to the housing body 15 by tightening, as will be described later, and therefore the pressing protrusion 32 can gently and reliably press the communication device 11 by tightening the cover 16. Therefore, the pressing protrusion 32 can reliably suppress rattle of the communication device 11 without damaging the communication device 11.

[0034] Additionally, a second sealing member 33 in the form of an annular sheet is disposed in the outer region of the annular raised wall 31 on the back surface of the top plate 30. The second sealing member 33 in the form of a sheet is attached to the back surface of the top plate 30 in a state where its position is restricted by the inner peripheral surface of the base side of the peripheral wall 35 and the outer peripheral surface of the raised wall 31.

[0035] When the lid body 16 is attached to the housing body 15, the second seal member 33 is interposed between the end face of the peripheral wall portion 18 on the housing body 15 side and the back surface of the top plate portion 30 of the lid body 16. At this time, the second seal member 33 is in tight contact with the end face of the peripheral wall portion 18 on the housing body 15 side and the back surface of the top plate portion 30 of the lid body 16, sealing the gap between the lid body 16 and the housing body 15. Therefore, the gap between the housing body 15 and the lid body 16 is doubly sealed by the first seal member 26 and the second seal member 33.

[0036] A plurality of anti-slip grooves 36 are formed on the outer peripheral surface of the peripheral wall 35 of the lid 16. The anti-slip grooves 36 extend along the axial direction of the peripheral wall 35 and are formed at equal intervals on the outer peripheral region of the peripheral wall 35.

[0037] Furthermore, a plurality of belt-shaped engaged protrusions 37 are formed on the inner peripheral surface of the peripheral wall 35 to engage with the spiral belt-shaped protrusions 21 of the peripheral wall 35 on the housing main body 15 side. The plurality of engaged protrusions 37 are arranged intermittently so that the entirety of the plurality of engaged protrusions 37 forms a spiral shape that follows the inner peripheral surface of the peripheral wall 35. The plurality of engaged protrusions 37 are arranged in a spiral shape from the vicinity of the end of the opening side of the peripheral wall 35 to the vicinity of the base of the peripheral wall 35 (the joint with the top plate 30).

[0038] When the peripheral wall 35 of the cover 16 is rotated in one direction, the multiple engaged protrusions 37 are engaged with the band-like protrusions 21 on the housing body 15 side. As this engagement progresses, the amount of axial overlap between the peripheral wall 35 on the cover 16 side and the peripheral wall 18 on the housing body 15 side increases, and the cover 16 is ultimately fixed to the housing body 15. When the peripheral wall 35 of the cover 16 is rotated in the other direction from this state, the multiple engaged protrusions 37 and the band-like protrusions 21 are disengaged, and the cover 16 can be removed from the housing body 15. In this embodiment, the engaged projections 37 provided on the peripheral wall 35 of the cover 16 constitute engaged portions that engage with the spiral engaging portions (band-shaped projections 21) on the housing body 15 side.

[0039] Furthermore, the engaged projection 37, which is disposed in a position close to the base of the peripheral wall 35, has a protrusion 23 formed thereon that can engage with the recess 22 of the band-shaped projection 21 on the housing body 15 side. The protrusion 23 is formed on the surface of the engaged projection 37 that faces the back surface of the top plate 30. The protrusion 23 engages with the recess 22 when the lid 16 is tightened to the housing body 15 or when the lid 16 moves slightly in the disengagement direction from the tightening end position. By engaging the protrusion 23 with the recess in this way, loosening of the lid 16 in the rotational direction relative to the housing body 15 is restricted.

[0040] 2 and 5, one tightening start mark 27 indicating the tightening start position (the tightening start position between the engaged projection 37 and the strip-shaped projection 21) of the lid 16 and the casing body 15 is formed on the upper surface of the base portion 20a of one fixing piece 20 of the casing body 15. In addition, the other tightening start mark 38 indicating the tightening start position of the lid 16 and the casing body 15 is formed on the outer peripheral edge of the surface of the top plate portion 30 of the lid 16, as shown in FIGS. The tightening start marks 27, 38 can be configured, for example, by circular or other shaped depressions or protrusions, colored marks, or the like.

[0041] FIG. 7 is a plan view showing the state in which the tightening start marks 38 and 27 of the cover 16 and the housing body 15 are aligned. When tightening the peripheral wall 35 of the lid 16 to the peripheral wall 18 of the housing body 15, the circumferential positions of the peripheral wall 35 of the lid 16 and the peripheral wall 18 of the housing body 15 are adjusted so that the tightening start mark 38 on the lid 16 and the tightening start mark 27 on the housing body 15 are aligned, as shown in Figure 7. The peripheral wall 35 of the lid 16 is rotated in the tightening direction, with this position being the initial position. This promptly starts the engagement between the engaged protrusion 37 on the lid 16 and the strip-shaped protrusion 21 on the housing body 15.

[0042] FIG. 8 is a perspective view of the cover 16 as seen from the front side, and FIG. 9 is a perspective view of the battery-embedded tag 10 as seen from the back side. 8 and 9, the anti-slip grooves 36 on the outer peripheral surface of the peripheral wall portion 35 of the lid body 16 have a shape that is different from the others at one location on the circumference. One of the multiple anti-slip grooves 36 has a shorter axial length than the other anti-slip grooves 36. In this embodiment, the other anti-slip grooves 36 extend continuously along the axial direction from the base of the peripheral wall portion 35 to the protruding end, but one anti-slip portion 36A ends before reaching the protruding end of the peripheral wall portion 35. In this embodiment, this non-slip portion 36A having a short axial length constitutes one of the tightening completion marks that indicates the tightening completion position of the lid body 16 and the housing body 15. Hereinafter, the non-slip portion 36A having a short axial length will be referred to as the "tightening completion mark 36A."

[0043] Meanwhile, the other tightening completion mark 28, which indicates the tightening completion position of the lid 16 and the housing body 15, is formed on a part of the outer peripheral edge of the back surface of the housing body 15. Similar to the tightening start marks 27 and 38, the tightening completion mark 28 can be configured, for example, by a circular or other shaped depression or protrusion, a colored mark, or the like. The tightening completion mark 36A on the cover 16 side may be configured as a circular or other shaped depression or protrusion, a colored mark, or the like, similar to the tightening completion mark 28 on the housing body 15 side.

[0044] When tightening the peripheral wall 35 of the lid 16 to the peripheral wall 18 of the housing body 15, the tightening start mark 38 on the lid 16 is aligned with the tightening start mark 27 on the housing body 15 as described above, and the lid 16 is then rotated in the tightening direction. When the lid 16 is tightened to the housing body 15 by a specified amount or more, the convex portion 23 on the engaging projection 37 on the lid 16 engages with the recessed portion 22 of the strip-shaped projection on the housing body 15. Further tightening of the lid 16 from this state will reach the tightening end position. The operator confirms that the tightening completion mark 36A on the lid 16 is aligned with the tightening completion mark 28 on the housing body 15, as shown in FIG. 8, and then finishes tightening the lid 16.

[0045] As described above, the battery-equipped tag 10 of this embodiment has a housing 13 that houses the communication device 11 and the battery 12, and includes a housing body 15 and a lid 16. The spiral strip-shaped projections 21 (engaging portion) and the engaged projections 37 (engaged portion) are provided between the outer peripheral surface of the peripheral wall portion 18 on the housing body 15 side and the inner peripheral surface of the peripheral wall portion 35 on the lid 16 side, which are engaged with each other. Therefore, by rotating the lid 16 in one direction relative to the housing body 15, the lid 16 can be fastened and fixed to the housing body 15, and by rotating the lid 16 in the other direction relative to the housing body 15 from this state, the lid 16 can be removed from the housing body 15 to replace the battery 12. Therefore, when the battery-equipped tag 10 of this embodiment is used, the lid body 16 can be easily attached and detached without using a large number of fastening members, and the lid body 16 can be prevented from falling off due to external vibrations or impacts.

[0046] Furthermore, in the battery-embedded tag 10 of this embodiment, the housing body 15 has a flange portion 19 that protrudes radially outward from the base of the peripheral wall portion 18, and a first seal member 26 is interposed between the flange portion 19 and the end face of the peripheral wall portion 35 on the lid body 16 side. Furthermore, a second seal member 33 is interposed between the end face of the peripheral wall portion 18 on the housing body 15 side and the back surface of the top plate portion 30 on the lid body 16 side. Therefore, when the lid body 16 is tightened onto the housing body 15, the first seal member 26 between the flange portion 19 of the housing body 15 and the end face of the peripheral wall portion 35 on the lid body 16 side comes into tight contact with both, and the second seal member 33 between the end face of the peripheral wall portion 18 on the housing body 15 side and the top plate portion 30 of the lid body 16 also comes into tight contact with both. Therefore, when the battery-equipped tag 10 of this embodiment is adopted, the inside of the housing 13 is doubly sealed by the first sealing member 26 and the second sealing member 33, making it possible to more reliably prevent water and dust from entering the inside of the housing 13.

[0047] Furthermore, in this embodiment, a first sealing member 26 is interposed between the flange portion 19 and the end face of the peripheral wall portion 35 on the lid body 16 side, and a second sealing member 33 is interposed between the end face of the peripheral wall portion 18 on the housing body 15 side and the back surface of the top plate portion 30 on the lid body 16 side, so that tightening the lid body 16 to the housing body 15 can further improve the airtightness between the housing body 15 and the lid body 16 by the two sealing members 26, 33.

[0048] Furthermore, the battery-embedded tag 10 of this embodiment is configured such that a recess 22 is provided on the outer periphery of the peripheral wall 18 on the housing body 15 side, and a protrusion 23 is provided on the inner periphery of the peripheral wall 35 on the lid body 16 side, and the protrusion 23 can engage with the recess 22 when the lid body 16 is tightened to the housing body 15 in the engagement direction by a specified amount or more. Therefore, even if the lid body 16 attempts to rotate in the loosening direction due to vibration or impact, the rotation of the lid body 16 is restricted by the protrusion 23 and the recess 22 (loosening restriction portion). Particularly in a structure such as this embodiment in which the elastic reaction force of the first seal member 26 and the second seal member 33 acts greatly in the direction to open the lid body 16, the engagement between the protrusion 23 and the recess 22 can effectively prevent the lid body 16 from loosening. Therefore, when this configuration is adopted, it is possible to prevent the lid 16 from loosening or falling off.

[0049] Furthermore, in the battery-equipped tag 10 of this embodiment, fastening start marks 27, 38 that indicate the fastening start positions for the main housing body 15 and the lid body 16 are provided on the main housing body 15 and the lid body 16. Therefore, when attaching the lid body 16 to the main housing body 15, fastening start marks 38, 27 on the main housing body 15 and the lid body 16 can be aligned to efficiently start fastening the lid body 16 to the main housing body 15. Therefore, when this configuration is adopted, the workability of assembling the lid body 16 can be improved.

[0050] Furthermore, in the battery-embedded tag 10 of this embodiment, fastening completion marks 28, 36A that indicate the fastening completion positions of the housing body 15 and the lid body 16 are provided on the housing body 15 and the lid body 16. Therefore, when fastening the lid body 16 to the housing body 15, by stopping the fastening at a position where the fastening completion marks 28, 36A of the housing body 15 and the lid body 16 match, it is possible to avoid over-fastening the lid body 16. Furthermore, when the cover 16 is removed to replace the battery 12 while the battery-equipped tag 10 is still fixed to the mobile object 1, the worker can tell that the tightening is nearing completion due to the clicking sensation felt when the convex portion 23 engages with the concave portion 22 when tightening the cover 16 after the battery replacement.

[0051] Furthermore, the battery-equipped tag 10 of this embodiment has a pair of fixing pieces 20 that extend from the base of the peripheral wall 18 on the housing main body 15 side, protruding radially outward from positions that correspond to opposite positions on the outer periphery of the peripheral wall 18, and the fixing pieces 20 serve as connecting parts for connecting to the installation object (moving body 1). Therefore, the battery-equipped tag 10 can be attached to the installation object in a balanced manner while minimizing the size of the connecting part for connecting to the installation object. Therefore, when the battery-equipped tag 10 of this embodiment is used, it is possible to avoid the battery-equipped tag 10 becoming larger, while ensuring stability when it is installed on the object to be installed.

[0052] The present invention is not limited to the above-described embodiment, and various design modifications are possible without departing from the spirit of the present invention. For example, in the above-described embodiment, the battery-equipped tag 10 is attached to the installation object (mobile body 1) with a screw 25, but the method of attaching the battery-equipped tag 10 to the installation object is not limited to this. The battery-equipped tag 10 may be attached to the installation object by other methods, such as by fastening with a fastener or by adhesive. Furthermore, in the above embodiment, the recessed portion 22 and the protruding portion 23 that constitute the loosening prevention portion are formed on the housing body 15 side and the lid body 16 side, respectively, but it is also possible to form the recessed portion 22 on the lid body 16 side and the protruding portion 23 on the housing body 15 side.

[0053] In the above embodiment, the spiral band-shaped projection 21 is formed on the outer peripheral surface of the peripheral wall 18 on the housing body 15 side, and the multiple engaged projections 37 are formed on the inner peripheral surface of the peripheral wall 35 on the lid body 16 side, but the configuration of the engaging portion between the housing body 15 and the lid body 16 is not limited to this. The lid body 16 and the housing body 15 may have a structure that allows the lid body 16 to be fastened to and released from the housing body 15 by rotating the peripheral wall 18 of the lid body 16. For example, a spiral band-shaped protrusion may be formed on the inner peripheral surface of the peripheral wall portion 35 of the cover body 16, and a plurality of engagement protrusions that can be engaged with the band-shaped protrusion may be formed on the outer peripheral surface of the housing body 15. Alternatively, a spiral strip-shaped projection may be formed on the outer peripheral surface of the housing body 15 and the inner peripheral surface of the peripheral wall portion 35 of the lid body 16 so as to engage with each other.

[0054] Furthermore, in the above embodiment, the battery-equipped tag 10 is configured as an LPWA electronic tag. However, the battery-equipped tag 10 is not limited to an LPWA electronic tag, and may be an active RFID tag or the like. [Explanation of symbols]

[0055] 10...battery-equipped tag, 11...communication equipment, 12...battery, 13...casing, 14...opening, 15...casing main body, 16...lid, 18...peripheral wall portion (casing-side peripheral wall portion), 19...flange portion, 20...fixing piece, 21...band-shaped protrusion (spiral engaging portion), 22...recessed portion (loosening prevention portion), 23...convex portion (loosening prevention portion), 26...first sealing member, 27...tightening start mark, 28...tightening completion mark, 30...top plate portion, 35...peripheral wall portion (lid-side peripheral wall portion), 36A...tightening completion mark, 37...engaged protrusion (engaged portion), 38...tightening start mark

Claims

1. a communication device including an IC chip and an antenna; a battery that drives the communication device; a housing that houses the communication device and the battery, The housing includes: a housing main body having a cylindrical main body side peripheral wall portion and having the battery disposed therein; a top plate portion that closes the opening of the main body side peripheral wall portion, and a lid body having a lid body side peripheral wall portion that covers an outer peripheral surface of the main body side peripheral wall portion, A battery-embedded tag, wherein a spiral engaging portion and an engaged portion that engages with the engaging portion are provided between the outer peripheral surface of the main body side peripheral wall portion and the inner peripheral surface of the lid side peripheral wall portion.

2. the housing main body has a flange portion that protrudes radially outward from a vicinity of an end portion of the main body side peripheral wall portion opposite the opening and faces an end surface of the cover body side peripheral wall portion of the cover body, a first seal member is interposed between the flange portion and an end face of the lid-side peripheral wall portion so as to be in close contact with both the flange portion and the end face of the lid-side peripheral wall portion; 2. The battery-embedded tag according to claim 1, wherein a second seal member is interposed between the end face of the main body peripheral wall and the top plate of the lid, the second seal member being in tight contact with both of them.

3. The battery-equipped tag according to claim 1 or 2, wherein the housing body and the lid body are provided with loosening prevention portions that engage with each other to prevent the lid body from rotating in the loosening direction when the lid body is tightened in the engagement direction between the engaging portion and the engaged portion by a specified amount or more.

4. 2. The battery-embedded tag according to claim 1, wherein the housing body and the lid are provided with fastening start marks that indicate fastening start positions for the two bodies.

5. 2. The battery-embedded tag according to claim 1, wherein the housing body and the lid are provided with fastening completion marks that indicate the fastening completion positions of the housing body and the lid.

6. 2. The battery-equipped tag according to claim 1, wherein a pair of fixing pieces extend radially outward from positions corresponding to opposite positions on the outer periphery of the main body side peripheral wall near the end opposite the opening, and the fixing pieces serve as connecting parts for connecting to an object to be installed.

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