JP2020038137A - Detecting device and vibration detecting device - Google Patents

Abstract

To obtain a detecting device and a vibration detecting device having, for example less inconvenient, new configuration.SOLUTION: A detecting device includes, for example a sensor, plural transmission parts, and a housing. The plural transmission parts wirelessly transmit a signal for indicating a detection result by the sensor in a different communication system. The housing includes a shielded part composed of a material for shielding radio waves transmitted from the plural transmission parts, and a transmission part composed of a material for transmitting radio waves transmitted from the plural transmission parts, and stores the sensor and the transmission parts. The plural transmission parts each are covered with the transmission part and are disposed mutually separately.SELECTED DRAWING: Figure 7

Description

  The present embodiment relates to a detection device and a vibration detection device.

  2. Description of the Related Art Conventionally, there has been known an apparatus that detects vibration using a vibration sensor attached to an inspection object.

JP 2017-32275 A

  It would be beneficial for this type of detection device to have a new configuration with less inconvenience.

  The detection device according to the embodiment includes, for example, a sensor, a plurality of transmission units, and a housing. The plurality of transmitting units wirelessly transmit a signal indicating a result of detection by the sensor by a different communication method. The housing has a shielding portion made of a material that shields radio waves transmitted from the plurality of transmission portions, and a transmission portion formed of a material that transmits radio waves transmitted from the plurality of transmission portions, and a sensor. , And a transmission unit. Each of the plurality of transmission units is covered with the transmission part and is arranged apart from each other.

FIG. 1 is an exemplary and schematic front view of the vibration detection device according to the embodiment. FIG. 2 is an exemplary and schematic perspective view of the vibration detection device according to the embodiment. FIG. 3 is an exemplary and schematic perspective view of the vibration detection device according to the embodiment, and is a diagram viewed in a direction different from FIG. 2. FIG. 4 is a sectional view taken along line IV-IV of FIG. FIG. 5 is an exemplary and schematic perspective view of a substrate assembly included in the vibration detection device according to the embodiment. FIG. 6 is an exemplary and schematic perspective view of the substrate assembly included in the vibration detection device according to the embodiment, and is a view seen in a direction different from FIG. FIG. 7 is a sectional view taken along line VII-VII of FIG. FIG. 8 is a sectional view taken along line VIII-VIII of FIG. FIG. 9 is an exemplary and schematic perspective view of a wiring member included in the vibration detection device according to the embodiment, and is a diagram in an extended state not incorporated in the vibration detection device. FIG. 10 is an exemplary schematic plan view in which a part of a wiring member included in the vibration detection device according to the embodiment is enlarged.

  Hereinafter, exemplary embodiments of the vibration detection device will be disclosed. The configuration (technical feature) of the embodiment described below is an example.

  In each figure, for convenience, arrows indicating directions are described. The direction X, the direction Y, and the direction Z are orthogonal to each other. The direction Di indicates the direction in which the protrusion 13 protrudes from the base 12, and the direction Dj indicates the thickness direction of the protrusion 13 (or the circuit board 31). The direction Di and the direction Dj are orthogonal to each other. In the following, for convenience, the direction indicated by each arrow (arrows X, Y, Z, Di, Dj) in each drawing is referred to as the front of the direction (direction X, Y, Z, Di, Dj). The direction opposite to the direction indicated by the arrow is referred to as the rear of the direction.

[Embodiment]
FIG. 1 is a front view of the vibration detection device 10, and FIGS. 2 and 3 are perspective views of the vibration detection device 10. As illustrated in FIGS. 1 to 3, the vibration detection device 10 includes an attachment 11, a base 12, and a protrusion 13. The vibration detection device 10 is an example of a detection device.

  The attachment 11 has a fixing portion 11a that is fixed in a state in contact with the surface 100a of the inspection object 100. The fixing portion 11a has a contact surface 11b that intersects (eg, is orthogonal to) the direction Z. The contact surface 11b is fixed to the surface 100a by, for example, bonding or the like, whereby the attachment 11 and thus the vibration detection device 10 are fixed to the inspection object 100. The attachment 11 can also be called a bracket. The contact surface 11b is an example of a first mounting surface.

  The base 12 is detachably connected to the attachment 11. The base 12 protrudes rearward in the direction X from the rear end of the protrusion 13 in the direction Di. In other words, the protruding portion 13 protrudes forward in the direction Di from the front end of the base portion 12 in the direction X. The base portion 12 and the protruding portion 13 have a substantially L-shaped or substantially V-shaped shape. The direction Z and the direction Di form an acute angle, and the direction Di is obliquely inclined with respect to the direction Z.

  The protrusion 13 has a flat shape with a substantially constant width and a substantially constant thickness. The shape of the protruding portion 13 is a flat rectangular parallelepiped that spreads across the direction Dj.

  The vibration detection device 10 has a front surface 10a, a rear surface 10b, a top surface 10c, a bottom surface 10d, a side surface 10e, a front lower surface 10f, a rear upper surface 10g, and a rear side surface 10h. The front surface 10a is a surface located at the front end of the projection 13 in the direction Dj and substantially orthogonal to the direction Dj. The rear surface 10b is a surface located at the rear end of the projection D in the direction Dj and substantially perpendicular to the direction Dj. The top surface 10c is a surface that is located at the front end of the protrusion 13 in the direction Di and is substantially orthogonal to the direction Di. The bottom surface 10d is located at the rear end of the base portion 12 in the direction Z, and is a surface substantially orthogonal to the direction Z. The bottom surface 10d is substantially parallel to the front surface 100a of the inspection object 100. The side surface 10e is a surface located at the front end and the rear end in the direction Y of the protruding portion 13 and substantially orthogonal to the direction Y. The front lower surface 10f is a surface located at the rear end of the projection 13 in the direction Di and substantially orthogonal to the direction Di. The rear upper surface 10g is located at the rear end of the base portion 12 in the direction X, is substantially parallel to the direction Y, and is a curved surface including a generatrix extending in the direction Y. The rear side surface 10h is a surface that is located at the front end and the rear end in the direction Y of the base portion 12, and is substantially orthogonal to the direction Y.

  The vibration detection device 10 includes a housing 20. The housing 20 has a central portion 21 located at the center in the direction Y when viewed from the front in FIG. The central portion 21 is a portion having a width D centered on a center line CL (center plane) orthogonal to the direction Y in the front view of FIG. As shown in FIGS. 2 and 3, the central part 21 has a front cover 22 and a rear case 23. The front cover 22 has a front wall 22a, and the rear case 23 has a rear wall 23a, a top wall 23b, and a bottom wall 23c. The front wall 22a is substantially perpendicular to the direction Dj. The rear wall 23a is substantially perpendicular to the direction Dj, is substantially parallel to the front wall 22a, and is located away from the front wall 22a behind the direction Dj. The top wall 23b is substantially perpendicular to the direction Di. The bottom wall 23c is substantially perpendicular to the direction Di, is substantially parallel to the top wall 23b, and is located away from the top wall 23b in the rear of the direction Di.

  The central portion 21, that is, the front cover 22 and the rear case 23 have an electromagnetic wave shielding property such as an aluminum alloy (aluminum-based material), stainless steel (iron-based material), or a magnesium alloy (magnesium-based material). Metal material. The central part 21 is an example of a shielding part.

  The side cover 24A is a part adjacent to the front of the center portion 21 in the direction Y (left side in FIG. 1) in the front view of FIG. It is a part adjacent to the rear (right side in FIG. 1). As shown in FIGS. 2 and 3, each of the side covers 24A and 24B has a front wall 24a, a rear wall 24b, a top wall 24c, a bottom wall 24d, and a side wall 24e. The front wall 24a is adjacent to the front wall 22a of the central portion 21 in the direction Y and is substantially orthogonal to the direction Dj. The rear wall 24b is adjacent to the rear wall 23a of the central portion 21 in the direction Y, is substantially perpendicular to the direction Dj, is substantially parallel to the front wall 24a, and is located away from the front wall 24a in the rear of the direction Dj. . The top wall 24c is substantially orthogonal to the direction Di. The bottom wall 24d is substantially perpendicular to the direction Di, is substantially parallel to the top wall 24c, and is located away from the top wall 24c behind the direction Di. The top wall 24c is located between front ends of the front wall 24a and the rear wall 24b in the direction Di, and the bottom wall 23c is located between rear ends of the front wall 24a and the bottom wall 23c in the direction Di. The side wall 24e is substantially perpendicular to the direction Y. The side wall 24e of the side cover 24A is located between the front end in the direction Y of the front wall 24a, the rear wall 24b, the top wall 24c, and the bottom wall 24d of the side cover 24A, and the side wall 24e of the side cover 24B is Are located between the rear ends of the front wall 24a, the rear wall 24b, the top wall 24c, and the bottom wall 24d in the direction Y. The side wall 24e of the side cover 24A and the side wall 24e of the side cover 24B are substantially parallel to each other.

  The side covers 24A and 24B can be made of, for example, a synthetic resin material or a material having electromagnetic wave permeability, such as an elastomer. The side covers 24A and 24B are an example of a transmission part.

  The front walls 22a and 24a, the rear walls 23a and 24b, the top walls 23b and 24c, the bottom walls 23c and 24d, and the side walls 24e form a flat rectangular box-shaped protrusion 13 and are provided in the protrusion 13. The substrate assembly 30 is accommodated in the first accommodation room R1 thus set. The central portion 21 covers the periphery of the central portion in the direction Y of the substrate assembly 30 including the MCU 32a (micro controller unit, see FIG. 5), and the side cover 24A places the front portion of the substrate assembly 30 in the direction Y in the direction Y. The side cover 24B covers the rear part of the board assembly 30 in the direction Y from the rear in the direction Y.

  As shown in FIG. 2, a plurality of through holes 24h are provided in the side wall 24e of the side cover 24B. The external connection connector 32c and the external operation switch 32d are exposed from the through hole 24h. The through hole 24h may be referred to as an opening.

  The base portion 12 protrudes from the rear end of the central portion 21 in the direction Di in a direction opposite to the direction X. The base 12 has a rear case 23 and a rear cover 25.

  FIG. 4 is a sectional view taken along line IV-IV of FIG. As shown in FIG. 4, the front cover 22, the rear case 23, and the side cover 24A are integrated by the male screw 14. Specifically, the male screw 14 has a through hole 23e1 provided in a flange 23e of the rear case 23 and a side cover 24A in a posture where the head is located at the rear end of the direction Dj and the screw portion is at the front end in the direction Dj. The threaded portion penetrates the provided through hole 24f and is coupled to the female screw hole 22b1 provided on the flange 22b of the front cover 22. Further, with the same configuration, the front cover 22, the rear case 23, and the side cover 24B are also integrated by the male screw 14. The male screw 14 is an example of a fastener.

  FIG. 5 is a perspective view of the substrate assembly 30. FIG. 6 is a perspective view of the substrate assembly 30 as viewed from a different direction from FIG. 5 and 6 show directions in a state where the housing 20 is assembled.

  As shown in FIGS. 5 and 6, the board assembly 30 has a plurality of circuit boards 31 electrically connected to each other. In the board assembly 30, the plurality of circuit boards 31 overlap with an interval in the thickness direction (direction Dj) of each circuit board 31. In the present embodiment, the board assembly 30 includes two circuit boards 31 having substantially the same size, but is not limited thereto. For example, three or more circuit boards electrically connected to each other may be used. The circuit board 31 may be provided, or one circuit board 31 may be provided. Further, the board assembly 30 in which a plurality of circuit boards 31 are assembled in advance may be incorporated in the housing 20, or the circuit board 31 may be constituted by incorporating each of the circuit boards 31 in the housing 20. Further, the sizes and shapes of the plurality of circuit boards 31 do not need to be the same. The circuit board 31 is an example of a board.

  The shape of the circuit board 31 is a square shape. The circuit board 31 has an upper end 31e, a lower end 31f, a right end 31g, and a left end 31h, respectively. The upper end 31e, the lower end 31f, the right end 31g, and the left end 31h can also be referred to as edges or sides, respectively. The upper end 31e is the front end of the circuit board 31 in the direction Di and extends along the direction Y. The lower end 31f is a rear end of the circuit board 31 in the direction Di and extends along the direction Y. The right end 31g is the front end in the direction Y of the circuit board 31 and extends along the direction Di. The left end 31h is the rear end of the circuit board 31 in the direction Y and extends along the direction Di.

  Further, through-holes 31b are provided at the corners 31a (four corners) of the circuit board 31. As shown in FIG. 4, the board assembly 30 is supported by the housing 20 with the corners 31a inserted into slits 24g (notches) provided in the side cover 24A and the male screw 14 penetrating the through hole 31b. ing. Note that a cushioning material or the like may be interposed between the housing 20 and the board assembly 30. Although not shown, a corner (not shown in FIG. 4) opposite to the corner 31 a shown in FIG. 4, in other words, a rear corner in the direction Y also has a similar configuration. It is integrated with the housing 20 by another male screw (not shown).

  As shown in FIG. 5, for example, an MCU 32a, a first wireless unit 32b, an external connection connector 32c, and an electronic device such as an external operation switch 32d are provided on a front surface 31c located in front of the direction Dj of the circuit board 31A. Parts are mounted. The first wireless unit 32b performs data communication in accordance with, for example, BLE (Bluetooth low energy) standards. Note that the first wireless unit 32b has a built-in antenna. Therefore, the first wireless unit 32b is an example of the first transmitting unit and the transmitting unit.

  As shown in FIG. 6, for example, the second wireless unit 32e or the second wireless unit 32e is provided on a rear surface 31d of the other circuit board 31B that is separated from the circuit board 31A in the direction Dj and located behind the direction Dj. Electronic components such as the antenna 32f of the second wireless unit 32e are mounted. The second wireless unit 32e performs data communication in accordance with, for example, LoRaWAN (registered trademark, long range wide area network) standard. The antenna 32f is an example of a second transmitting unit and a transmitting unit.

  FIG. 7 is a sectional view taken along line VII-VII of FIG. As shown in FIG. 7, the first wireless unit 32b faces the side cover 24A. In other words, the first wireless unit 32b is covered with the side cover 24A. The antenna 32f of the second wireless unit 32e faces the side cover 24B. In other words, the antenna 32f is covered with the side cover 24B. As described above, the side covers 24A and 24B are made of a material having electromagnetic wave permeability. Therefore, according to such a configuration, wireless communication by the first wireless unit 32b and the antenna 32f is not hindered by the housing 20.

  The first wireless unit 32b is mounted on the front surface 31c of the circuit board 31A, and the antenna 32f is mounted on the rear surface 31d of the circuit board 31B. In other words, the first wireless unit 32b and the antenna 32f are mounted on the opposite sides (the front side and the rear side) of the board assembly 30. The first wireless unit 32b is located closer to the right end 31g than the left end 31h of the circuit board 31A, and the antenna 32f is located closer to the left end 31h than the right end 31g of the circuit board 31B. In other words, the first wireless unit 32b and the antenna 32f are mounted on opposite sides (right and left) of the board assembly 30. Further, as shown in FIGS. 5 and 6, the first wireless unit 32b is positioned closer to the upper end 31e than the lower end 31f of the circuit board 31B, and the antenna 32f is positioned lower than the upper end 31e of the circuit board 31B. It is located near 31f. In other words, the first wireless unit 32b and the antenna 32f are mounted on opposite sides (upper and lower sides) of the board assembly 30. That is, the first wireless unit 32b and the antenna 32f are arranged diagonally on the board assembly 30. Therefore, according to such a configuration, for example, the first wireless unit 32b and the antenna 32f are separated from each other, and the circuit boards 31A and 31B including conductors are interposed between the first wireless unit 32b and the antenna 32f. Alternatively, between the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f, for example, because the central portion 21 containing a material having an electromagnetic wave shielding property is interposed between the first wireless unit 32b and the antenna 32f. And mutual interference hardly occurs.

  Further, as shown in FIG. 5, on the circuit board 31A, the external connection connector 32c and the external operation switch 32d are located at the left end 31h, and the first wireless unit 32b is located at the right end 31g. As described above, the first wireless unit 32b, the external connection connector 32c, and the external operation switch 32d are mounted on opposite sides (right and left) of the circuit board 31A (the board assembly 30). Therefore, according to such a configuration, the first wireless unit 32b and other components can be more efficiently laid out on the circuit board 31A (the board assembly 30).

  As shown in FIG. 7, the battery 32g functioning as a power source of the board assembly 30 is provided between the circuit board 31A and the circuit board 31B, in other words, the rear face 31d of the circuit board 31A and the front face 31c of the circuit board 31B. Is located between. The battery 32g has a thin flat rectangular parallelepiped shape in the direction Dj. The battery 32g is attached to at least one of the circuit board 31A and the circuit board 31B, for example, by being adhered or fixed by a fixture. According to such a configuration, the protection of the battery 32g is enhanced. Also, as shown in FIG. 7, since the battery 32g including the conductor is interposed between the first wireless unit 32b and the antenna 32f, the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f are different from each other. Mutual interference hardly occurs between them.

  FIG. 8 is a sectional view taken along line VIII-VIII of FIG. As shown in FIGS. 5 and 8, a flexible printed wiring board 40 is attached to the lower end 31f of the front surface 31c of the circuit board 31A via a connector 32h.

  In the base portion 12, a second storage chamber R2 surrounded by a rear case 23 and a rear cover 25 is provided. The second storage room R2 is connected to the first storage room R1 via an opening 23d provided at the rear end of the rear wall 23a in the direction Di. The flexible printed wiring board 40 which is a part of the board assembly 30 is accommodated in the second accommodation room R2. As described above, the housing 20 configures the first storage chamber R1 and the second storage chamber R2 as spaces for housing the substrate assembly 30.

  The flexible printed wiring board 40 has a plurality of wiring patterns (conductors, not shown in FIG. 8) and an insulating layer (not shown, not shown in FIG. 8) covering the plurality of wiring patterns. . The flexible printed wiring board 40 is an example of a wiring member. The flexible printed wiring board 40 can also be called a flexible substrate.

  The flexible printed wiring board 40 extends while bending between the first end 40a and the second end 40b. The vibration sensor 51 is mounted in the first mounting area Ai1 closer to the second end 40b than the first end 40a. The first end 40a is attached to the connector 32h while extending along the direction Di. The second end portion 40b and the first mounting area Ai1 are located in the second accommodation room R2 provided in the base portion 12, and attached to the base portion 12 while extending along the direction Z. In the present embodiment, the rear case 23 is provided with a mounting surface 23f facing rearward in the direction X along the directions Y and Z, and the second end 40b is fixed to the mounting surface 23f. The second end 40b is fixed to the mounting surface 23f with an adhesive, a sealant, or the like. That is, in the second storage chamber R2, the periphery of the vibration sensor 51 is covered with an adhesive or a sealing agent and fixed so as not to move, and the surrounding adhesive or the sealing agent is used to cover other than the mounting surface 23f. The transmission of vibration from the portion to the vibration sensor 51 is suppressed. Here, as is apparent from FIG. 8, in the line of sight along the direction Y shown in FIG. 8, the direction Z in which the second end 40b extends and the direction Di in which the first end 40a extends are oblique. Intersects. In other words, in the line of sight along the direction Y, the direction Z in which the mounting surface 23f extends and the direction Di in which the projecting portion 13 extends obliquely intersect. Note that the second end 40b may extend in a direction different from the direction Z. Further, in order to increase the detection accuracy of vibration by the vibration sensor 51, it is desirable that the rigidity of the rear case 23 having the mounting surface 23f is relatively high. The mounting surface 23f is an example of a second mounting surface. The vibration sensor 51 is an example of a sensor and a first sensor. Still, the first mounting area Ai1 is an example of a mounting part and a first mounting part.

  The flexible printed wiring board 40 has flexibility and elasticity, and is provided between the first end 40a and the second end 40b in an elastically bent state. The flexible printed wiring board 40 has two portions, a first bent portion 40d between the first end portion 40a and the intermediate portion 40c, and a second bent portion 40e between the intermediate portion 40c and the second end portion 40b. , S-shaped or crank-shaped. That is, in the first bent portion 40d and the second bent portion 40e, the flexible printed wiring boards 40 are bent in directions opposite to each other. As described above, in a state where the flexible printed wiring board 40 is incorporated in the vibration detection device 10, the flexible printed wiring board 40 has two bent portions (first bent portion 40d and second bent portion 40e) bent in opposite directions. I have. In other words, the flexible printed wiring board 40 is incorporated into the vibration detection device 10 so that two first bent portions 40d and second bent portions 40e bent in opposite directions are generated.

  At least in the vicinity of the second bent portion 40e, a gap is provided between the flexible printed wiring board 40, the housing 20, and the board assembly 30. That is, the flexible printed wiring board 40 is in a state where the bending shape (position, radius of curvature, and the like) of the flexible printed wiring board 40 at the first bent portion 40d and the second bent portion 40e can be changed, and the first accommodation room R1 is provided. And is accommodated in the second accommodation room R2.

  As is clear from FIG. 8, the connection area Ac is connected to the circuit board 31A, and the first mounting area Ai1 is located on the opposite side of the circuit board 31B from the circuit board 31B. According to such a configuration, the length between the connection region Ac and the first mounting region Ai1 in the flexible printed wiring board 40 is longer than when the connection region Ac is connected to the circuit board 31B, Since the flexible printed wiring board 40 is more easily bent, the vibration of the board assembly 30 is less likely to be transmitted from the connection area Ac to the first mounting area Ai1. The circuit board 31A is an example of a first circuit board, and the circuit board 31B is an example of a second circuit board.

  FIG. 9 is a perspective view of the flexible printed wiring board 40 in an extended state before being mounted. 9, the direction L indicated by the arrow L is the longitudinal direction of the flexible printed wiring board 40. As shown in FIG. 9, the second end 40b is provided with a connection region Ac in which a plurality of terminals 40f electrically connected to the conductor are exposed. The vibration sensor 51 is mounted in the first mounting area Ai1 closer to the first end 40a than the second end 40b and the connection area Ac. In the first mounting area Ai1, although not shown, a conductor is exposed on the first surface 40g (front surface) of the flexible printed wiring board 40, and the vibration sensor 51 electrically connects the terminal of the vibration sensor 51 and the conductor. It is mounted on the flexible printed wiring board 40 in a state of being electrically connected. Further, a sensor 52 other than the vibration sensor 51 such as a temperature sensor is mounted on the flexible printed wiring board 40. The sensor 52 is mounted in the second mounting area Ai2 closer to the first mounting area Ai1 than the second end 40b and the connection area Ac. In the second mounting area Ai2, although not shown, a conductor is exposed on the first surface 40g (front surface) of the flexible printed wiring board 40, and the sensor 52 electrically connects the terminal of the sensor 52 and the conductor. In the connected state, it is mounted on the flexible printed wiring board 40. When the sensor 52 is a temperature sensor, the thermal conductivity of the rear case 23 having the mounting surface 23f is desirably relatively high in order to increase the temperature detection accuracy of the sensor 52. Therefore, it is desirable that at least the rear case 23 is also made of a metal material. The sensor 52 is an example of a second sensor, the second mounting area Ai2 is an example of a second mounting area, and the connection area Ac is an example of a connection area. Note that the sensor 52 may be a sensor other than the temperature sensor.

  FIG. 10 is an enlarged plan view of a part of the flexible printed wiring board 40. As shown in FIG. 10, the flexible printed wiring board 40 is provided with a slit 40i penetrating between a first surface 40g and a second surface 40h (back surface) opposite to the first surface 40g. I have. The slit 40i is located between a plurality of conductors 40j (wiring) extending between the first mounting area Ai1 or the second mounting area Ai2 of the flexible printed wiring board 40 and the connection area Ac, and extends along the conductor 40j. I have. The slit 40i extends in the direction L, that is, in the longitudinal direction of the flexible printed wiring board 40. The slit 40i is not provided between the two conductors 40j forming the differential wiring 40j1, but is provided between the differential wiring 40j1 and the single wiring 40j2.

  As described above, in the present embodiment, the housing 20 has the electromagnetic wave shielding central portion 21 (shielding portion) and the electromagnetic wave transmitting side covers 24A and 24B (transmission portion). The wireless unit 32b and the antenna 32f (transmitting unit) are covered by the side covers 24A and 24B (transmitting parts) and are separated from each other. According to such a configuration, for example, it is possible to suppress the wireless communication by the first wireless unit 32b and the antenna 32f from being hindered by the housing 20. Further, mutual interference hardly occurs between the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f.

  In the present embodiment, the housing 20 has side covers 24A and 24B (two transmission portions) sandwiching the central portion 21, and the first wireless unit 32b and the antenna 32f cover the side covers 24A and 24B, respectively. Have been done. According to such a configuration, for example, a configuration in which the first wireless unit 32b and the antenna 32f are respectively covered by the side covers 24A and 24B and are separated from each other can be realized by a relatively simple configuration. . In addition, for example, since the central portion 21 is interposed between the side covers 24A and 24B, mutual interference is less likely to occur between the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f.

  In the present embodiment, the first wireless unit 32b and the antenna 32f are mounted on opposite sides of the board assembly 30, respectively. According to such a configuration, for example, the first wireless unit 32b and the antenna 32f are arranged separately from each other, and, for example, the circuit board 31, the mounting components of the circuit board 31 such as the MCU 32a, and the battery 32g. Since the electromagnetic waves are shielded by the components of the board assembly 30, mutual interference between the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f is less likely to occur.

  In the present embodiment, the first wireless unit 32b and the antenna 32f are arranged diagonally on the board assembly 30. According to such a configuration, for example, since the first wireless unit 32b and the antenna 32f are arranged apart from each other, mutual interference between the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f is more significant. It is unlikely to occur.

  In the present embodiment, the board assembly 30 has two circuit boards 31A and 31B, and the first wireless unit 32b and the antenna 32f are provided on different circuit boards 31A and 31B. According to such a configuration, for example, a configuration in which the first wireless unit 32b and the antenna 32f are mounted on opposite sides of the board assembly 30, respectively, or a configuration in which the first wireless unit 32b and the antenna 32f are diagonally mounted on the board assembly 30 Can be realized by a relatively simple configuration.

  In the present embodiment, the battery 32g is sandwiched between the two circuit boards 31A and 31B. According to such a configuration, for example, the protection of the battery 32g is improved. Further, for example, since the battery 32g including the conductor is interposed between the first wireless unit 32b and the antenna 32f, mutual interference occurs between the communication signal of the first wireless unit 32b and the communication signal of the antenna 32f. hard.

  In this embodiment, the connection area Ac (connection part) of the flexible printed wiring board 40 (wiring member) is connected to the circuit board 31A (first substrate), and the first mounting area Ai1 (mounting part) is The circuit board 31A (the first substrate) is located on the opposite side of the substrate 31B (the second substrate). According to such a configuration, for example, the length between the connection region Ac and the first mounting region Ai1 in the flexible printed wiring board 40 is longer than when the connection region Ac is connected to the circuit board 31B. As a result, the flexible printed wiring board 40 is more easily bent, so that the vibration of the board assembly 30 due to inertia or the like is more difficult to be transmitted from the connection area Ac to the first mounting area Ai1. Therefore, a decrease in the detection accuracy of the vibration sensor 51 (sensor) is suppressed.

  In the present embodiment, the flexible printed wiring board 40 has a slit extending between the plurality of conductors 40j (wiring) along the plurality of conductors 40j and penetrating between the first surface 40g and the second surface 40h. 40i are provided. According to such a configuration, for example, since the flexible printed wiring board 40 is more easily bent, the vibration of the board assembly 30 due to inertia or the like is more difficult to be transmitted from the connection area Ac to the first mounting area Ai1. Therefore, a decrease in the detection accuracy of the vibration sensor 51 (sensor) is suppressed.

  In the present embodiment, in the flexible printed wiring board 40, the second mounting area Ai2 (second mounting portion) where the sensor 52 (second sensor) different from the vibration sensor 51 is mounted is larger than the connection area Ac. It is located near the first mounting area Ai1. According to such a configuration, for example, a detection result at a position close to the vibration sensor 51 can be obtained by the sensor 52. Further, for example, it is possible to prevent the detection result of the sensor 52 from being affected by the vibration of the substrate assembly 30. Further, for example, when the sensor 52 is a temperature sensor, the temperature can be detected more accurately at a position close to the inspection object 100.

  In the present embodiment, for example, the flexible printed wiring board 40 has flexibility, electrically connects the vibration sensor 51 and the board assembly 30, and allows the bending shape to be changed in the housing 20. Is housed. According to such a configuration, for example, even when vibration due to inertia or the like occurs in the substrate assembly 30, the vibration is reduced by bending (bending) of the flexible printed wiring board 40, and is not easily transmitted to the vibration sensor 51. Become. Therefore, according to the present embodiment, for example, it is possible to prevent the vibration due to the inertia of the board assembly 30 from affecting the detection of the vibration by the vibration sensor 51. The number of the bent portions may be one, or may be three or more. Further, the wiring member having elasticity is not limited to the flexible printed wiring board 40.

  In the present embodiment, for example, the protruding portion 13 accommodates the substrate assembly 30 in a posture extending in a direction (direction Di) intersecting with the contact surface 11b, and protrudes from the base portion 12 so as to be separated from the contact surface 11b. I have. If the portion of the housing 20 that accommodates the board assembly 30 is configured to extend along the inspection target 100 while being attached to the inspection target 100, the surface 100a of the inspection target 100, that is, the vibration A relatively large area is required for mounting the vibration detection device 10 on the mounting surface of the detection device 10. In this regard, according to the present embodiment, for example, since the vibration detection device 10 can be attached to a narrower area of the surface 100a of the inspection object 100, the degree of freedom of the attachment position (detection position) of the vibration detection device 10 is reduced. Thus, the vibration detecting device 10 can be easily mounted at a position where the detection of the vibration is required or at a position more suitable for the detection of the vibration.

  In the present embodiment, for example, the protruding portion 13 protrudes in a direction Di inclined with respect to the direction Z (and the direction X). In other words, the protruding portion 13 protrudes from the base portion 12 in the direction Di between the direction Z and the direction X. According to such a configuration, for example, the center of gravity of the protruding portion 13 can be made closer to the contact surface 11b along the direction Z as compared with a configuration in which the protruding portion 13 protrudes along the direction Z. Thereby, the moment arm of the center of gravity of the base portion 12 having the fulcrum at the contact surface 11b (the center position in the direction X) can be further shortened, so that the vibration due to the inertia of the protrusion 13 can be further reduced. As a result, it is possible to prevent the vibration due to the inertia of the protrusion 13 from affecting the detection of the vibration by the vibration sensor 51. The narrower angle between the direction Di and the direction Z is, for example, not less than 0 ° and not more than 45 °.

  In the present embodiment, for example, the protruding portion 13 protrudes from the end of the base portion 12 in the direction X in the direction Di inclined with respect to the direction Z. Therefore, according to the present embodiment, for example, the center of gravity of the protruding portion 13 can be brought closer to the contact surface 11b as compared with a configuration in which the protruding portion 13 protrudes from the central portion of the base portion 12 in the direction Di. Thereby, the moment arm of the center of gravity of the base portion 12 having the fulcrum at the contact surface 11b (the center position in the direction X) can be further shortened, so that the vibration due to the inertia of the protrusion 13 can be further reduced. As a result, it is possible to prevent the vibration due to the inertia of the protrusion 13 from affecting the detection of the vibration by the vibration sensor 51. The position at which the protruding portion 13 protrudes from the base portion 12 is not limited to the front end of the base portion 12 in the direction X, and may be any position as long as the position protrudes from the center of the base portion 12 in the direction X.

  As mentioned above, although the embodiment of the present invention was illustrated, the above-mentioned embodiment is an example and is not intended to limit the scope of the invention. The above embodiments can be implemented in other various forms, and various omissions, replacements, combinations, and changes can be made without departing from the spirit of the invention. These embodiments are included in the scope and gist of the invention, and are also included in the invention described in the claims and their equivalents. Further, the configuration and shape of each embodiment can be partially replaced and implemented. In addition, the specifications (structure, type, direction, shape, size, length, width, thickness, height, number, arrangement, position, material, etc.) of each configuration and shape are appropriately changed and implemented. can do.

  For example, the number of the plurality of transmission units may be three or more. Further, the communication method of the transmission unit is not limited to the above-described communication method. Further, the form of the transmission unit may be an antenna or a module integrated with an antenna. Further, various forms can be adopted as the form of the antenna.

  Further, the wiring member is not limited to the flexible printed wiring board, and may be another wiring member having flexibility (flexibility) such as a flexible flat cable or a plurality of cables. Further, the first sensor and the second sensor may be other than the vibration sensor and the temperature sensor.

  10: Vibration detection device (detection device), 11b: Contact surface (first mounting surface), 20: Housing, 21: Central part (shielding part), 23f: Mounting surface (second mounting surface), 24A, 24B: Side Cover (transmissive part), 30 ... board assembly, 31 ... circuit board (board), 31A ... circuit board (first board, board), 31B ... circuit board (second board, board), 32b ... first wireless unit ( 32f ... antenna (second transmitter, transmitter), 32g ... battery, 40 ... flexible printed wiring board (wiring member), 40g ... first surface, 40h ... second surface, 40i ... Slit, 40j ... Conductor (wiring), 51 ... Vibration sensor (first sensor, sensor), 52 ... Sensor (second sensor), Ac ... Connection area (connection site), Ai1 ... First mounting area (First mounting) Site, mounting site), Ai2 Second mounting region (second mounting portion).

Claims (10)

Sensors and
A plurality of transmission units that wirelessly transmit a signal indicating a detection result by the sensor using different communication methods,
A shielding portion made of a material that shields radio waves transmitted from the plurality of transmission portions, and a transmission portion made of a material that transmits radio waves transmitted from the plurality of transmission portions, wherein the sensor And a housing accommodating the transmission unit,
With
The detection device, wherein each of the plurality of transmission units is covered by the transmission part and is disposed apart from each other. The transmission part includes two transmission parts sandwiching the shielding part,
The detection device according to claim 1, wherein the plurality of transmission units include two transmission units covered by each of the two transmission parts. A substrate assembly housed in the housing;
The detection device according to claim 1, wherein the plurality of transmission units include two transmission units mounted on opposite sides of the substrate assembly.   The detection device according to claim 3, wherein the two transmission units are arranged diagonally on the substrate assembly. The substrate assembly has two substrates arranged substantially parallel to each other,
The detection device according to claim 3, wherein the two transmission units are provided on different substrates, respectively. A board assembly housed in the housing;
Batteries and
With
The detection device according to any one of claims 1 to 5, wherein the substrate assembly includes two substrates arranged substantially parallel to each other and sandwiching the battery. A board assembly housed in the housing;
A wiring member having a connection portion connected to the board assembly and a mounting portion on which the sensor is mounted,
With
The substrate assembly has a first substrate and a second substrate arranged substantially parallel to each other,
The connection portion is connected to the first substrate,
The detection device according to claim 1, wherein the mounting portion is located on a side opposite to the first substrate with respect to the second substrate. A board assembly housed in the housing;
A first surface, a second surface opposite to the first surface, a connection portion connected to the board assembly, a mounting portion on which the sensor is mounted, and the first surface and the second surface. A plurality of wirings extending between the connection portion and the mounting portion along the first surface and the second surface, extending along the plurality of wirings between the plurality of wirings. A wiring member provided with a slit passing therethrough,
The detection device according to any one of claims 1 to 7, comprising: A board assembly housed in the housing;
A connection portion fixed to the board assembly, a first mounting portion on which the first sensor as the sensor is mounted, and a second sensor as the sensor located closer to the first mounting portion than the connection portion A wiring member having a second mounting portion on which is mounted,
The detection device according to any one of claims 1 to 8, comprising: A vibration sensor,
A plurality of transmission units that wirelessly transmit a signal indicating a detection result by the vibration sensor using different communication methods,
A first mounting surface mounted on the detection target,
A second mounting surface extending in a direction orthogonal to the first mounting surface and having the vibration sensor mounted thereon,
A housing that extends in a direction obliquely intersecting with the first mounting surface and houses the vibration sensor and the transmitting unit;
A vibration detection device comprising:

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