WO2019058639A1

WO2019058639A1 - Sensor module and sensor module unit

Info

Publication number: WO2019058639A1
Application number: PCT/JP2018/019806
Authority: WO
Inventors: 正展大江
Original assignee: 住友電気工業株式会社
Priority date: 2017-09-19
Filing date: 2018-05-23
Publication date: 2019-03-28
Also published as: JPWO2019058639A1; JP7020489B2

Abstract

This sensor module is to be attached to, by means of magnetic force, a vibrating subject to be inspected. The sensor module is provided with a vibration sensor, case, cable, and case holding member. The case houses the vibration sensor. The cable is electrically connected to the vibration sensor, and is led out to the outside from the inside of the case. The case holding member includes a magnet, and is attached to the outer wall of the case, said case holding member holding the case with respect to the subject to be inspected. The outer wall of the case includes a first surface that intersects the leading out direction of the cable, and a second surface that intersects the first surface. The case holding member is configured such that either a state wherein the case holding member is attached to the first surface or a state wherein the case holding member is attached to the second surface can be selected.

Description

Sensor module and sensor module unit

The present invention relates to a sensor module and a sensor module unit.

This application claims the priority based on Japanese Patent Application No. 2017-178472 filed on Sep. 19, 2017, and incorporates all the contents described in the aforementioned Japanese application.

As a part of maintenance work of equipment in a factory, there is a case where work of detecting the state of equipment with various sensors and judging abnormality of the equipment based on the detected value may be performed. For example, a vibration detection device provided with a vibration sensor capable of detecting vibration, such as an acceleration sensor, is attached to a facility under operation, and an abnormality of the facility is determined (for example, Patent Document 1).

JP, 2016-052137, A

The sensor module of the present disclosure is attached to a vibrating subject by magnetic force. The sensor module includes a vibration sensor, a case, a cable, and a case holding member. The case houses a vibration sensor. The cable is electrically connected to the vibration sensor and pulled out from the inside of the case to the outside. The case holding member includes a magnet and is attached to the outer wall of the case to hold the case to the subject. The outer wall of the case includes a first surface intersecting the cable withdrawing direction and a second surface intersecting the first surface. The case holding member is configured to be selectable between a state of being attached to the first surface and a state of being attached to the second surface.

FIG. 2 is a schematic perspective view showing a structure of a sensor module in Embodiment 1. FIG. 2 is a schematic perspective view showing a structure of a sensor module in Embodiment 1. FIG. 2 is a plan view of a sensor module according to Embodiment 1. FIG. 2 is a cross-sectional view of a sensor module in Embodiment 1; FIG. 2 is a cross-sectional view of a sensor module in Embodiment 1; FIG. 2 is a cross-sectional view of a sensor module in Embodiment 1; FIG. 2 is a side view of the sensor module in the first embodiment. FIG. 2 is a side view of the sensor module in the first embodiment. FIG. 2 is a schematic perspective view of a sensor module according to Embodiment 1. FIG. 2 is a plan view of a sensor module according to Embodiment 1. FIG. 2 is a cross-sectional view of a sensor module in Embodiment 1; FIG. 2 is a cross-sectional view of a sensor module in Embodiment 1; FIG. 2 is a side view of the sensor module in the first embodiment. 5 is a bottom view of the sensor module in Embodiment 1. FIG. FIG. 2 is a side view of the sensor module in the first embodiment. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. FIG. 16 is a schematic perspective view showing a first modified example of the sensor module in the first embodiment. FIG. 16 is a schematic perspective view showing a second modified example of the sensor module in the first embodiment. It is a schematic perspective view which shows a sensor module unit. FIG. 14 is a schematic perspective view showing the structure of a sensor module in Embodiment 2. FIG. 14 is a schematic perspective view showing the structure of a sensor module in Embodiment 2. It is a disassembled perspective view which shows the 1st member with which a sensor module is equipped, a flat screw, a 2nd member, and a magnet. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. It is a schematic perspective view for demonstrating the case where it is set as the state attached to the 1st surface from the state attached to the 2nd surface. FIG. 21 is a schematic perspective view showing a first modification of the sensor module in the second embodiment.

[Problems to be solved by the present disclosure]
The sensor module including the vibration sensor includes a case for housing the vibration sensor, and a cable electrically connected to the vibration sensor. The case is attached to the vibrating subject, and the vibration sensor in the case detects the vibration. The sensor module is attached to detect a vibration in a predetermined direction of the vibration of the subject. Depending on the mounting location of the case, the cable may interfere with the subject, making it difficult to mount the sensor module.

Therefore, it is an object of the present invention to provide a sensor module capable of facilitating attachment of a case to a subject.

[Effect of the present disclosure]
According to the present disclosure, it is possible to provide a sensor module that can facilitate attachment of a case to a subject.

Description of an embodiment of the present invention
First, embodiments of the present invention will be listed and described.

(1) The sensor module of the present invention is attached to a vibrating subject by magnetic force. The sensor module includes a vibration sensor, a case, a cable, and a case holding member. The case houses a vibration sensor. The cable is electrically connected to the vibration sensor and pulled out from the inside of the case to the outside. The case holding member includes a magnet and is attached to the outer wall of the case to hold the case to the subject. The outer wall of the case includes a first surface intersecting the cable withdrawing direction and a second surface intersecting the first surface. The case holding member is configured to be selectable between a state of being attached to the first surface and a state of being attached to the second surface.

In the sensor module of the present application, a case holding member including a magnet is attached to the case. The case is attached to the subject by the magnetic force of the magnet included in the case holding member. The case includes a first surface and a second surface intersecting the first surface. Since the case holding member is configured to be selectable between the state of being attached to the first surface and the state of being attached to the second surface, the case holding member is attached to the first surface, and the case is received Even when the cable pulled out from the case interferes with the subject when attached to the sample, the case holding member can be replaced on the second surface intersecting the first surface. Then, the cable pulling direction with respect to the subject can be changed, so that cable interference can be prevented.

Thus, according to the sensor module of the present application, it is possible to provide a sensor module capable of facilitating attachment of the case to the subject.

(2) In the above sensor module, the case holding member may include an elastic member disposed so as to include a contact surface which is a surface in contact with the subject when holding the case with respect to the subject . By disposing the elastic member on the case holding member as described above, it becomes a slip stopper that suppresses the displacement of the case with respect to the subject. Therefore, the case can be attached to the subject more stably.

(3) In the sensor module, the magnet may be flat. When the attachment point to the subject is flat, the flat magnet can ensure a large contact area with the subject, and the case can be stably attached to the subject.

(4) In the sensor module, the case holding member may include a plurality of magnets and a magnet holding member for holding the plurality of magnets in a separated manner. By doing this, when the attachment point to the object is a curved surface, the case can be stably attached to the object by the magnetic force of the plurality of separated magnets.

(5) In the sensor module, a mark indicating the detection direction of the vibration sensor may be displayed on the outer wall of the case. Such a mark makes it possible to visually recognize the detection direction of the vibration sensor when attaching the case to the subject.

(6) In the above sensor module, the direction in which the vibration sensor detects vibration is parallel or perpendicular to the first surface and the second surface, and in this way, parallel or perpendicular to the first surface Vibration in any direction can be detected by the vibration sensor. Furthermore, even if the case holding member is changed from the first surface to the second surface, vibration in a direction parallel or perpendicular to the second surface can be detected by the vibration sensor.

(7) The sensor module unit of the present application includes the sensor module and a case holding member for replacement which can be used in place of the case holding member. The case holding member for replacement has a magnetic force and / or a shape different from that of the case holding member.

The sensor module unit of the present application is provided with a replacement case holding member in which at least one of the magnetic force and the shape is different from the case holding member. By providing such a replacement case holding member, the case holding member having an appropriate magnetic force or shape can be replaced depending on the subject to which the case is attached. Therefore, the case can be appropriately attached to the subject by replacing the case holding member for replacement according to the shape or the material of the subject.

[Details of the Embodiment of the Present Invention]
Next, an embodiment of a sensor module of the present application will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated. Hereinafter, the state in which the case holding member is attached to the second surface of the case of the sensor module in the first embodiment will be described with reference to FIGS. 1 to 8, and FIGS. 9 to 15 illustrate the sensor module in the first embodiment. A state where the case holding member is attached to the first surface of the case will be described. 16 to 25 illustrate steps of removing the case holding member attached to the second surface of the case and attaching the case holding member to the first surface of the case. In FIG. 26 and FIG. 27, the modification of the sensor module in Embodiment 1 is demonstrated. Referring to FIG. 28, a sensor module unit according to an embodiment of the present invention will be described. The sensor module in the second embodiment will be described with reference to FIGS. 29 to 41. A modification of the sensor module in the second embodiment will be described with reference to FIG.

Embodiment 1
FIG. 1 is a schematic perspective view showing the structure of the sensor module in the first embodiment. FIG. 2 is a schematic perspective view showing the structure of the sensor module in the first embodiment. FIG. 2 is a schematic perspective view of the arrangement shown in FIG. 1 as viewed from above. FIG. 3 is a plan view of the sensor module in the first embodiment. FIG. 3 is a view when the sensor module is viewed from the direction opposite to the direction of the arrow indicating the Z-axis direction in FIG. FIG. 4 is a cross-sectional view of the sensor module in the first embodiment. FIG. 4 is a cross-sectional view of the sensor module cut along a plane indicated by AA in FIG. FIG. 5 is a cross-sectional view of the sensor module in the first embodiment. FIG. 5 is a cross-sectional view of the sensor module cut along a plane indicated by BB in FIG. FIG. 6 is a cross-sectional view of the sensor module in the first embodiment. 6 is a cross-sectional view of the sensor module cut along a plane indicated by C-C in FIG. FIG. 7 is a side view of the sensor module in the first embodiment. FIG. 7 is a view when the sensor module is viewed from the direction opposite to the direction of the arrow indicating the Y-axis direction in FIG. FIG. 8 is a side view of the sensor module in the first embodiment. FIG. 8 is a view when the sensor module is viewed from the direction of the arrow indicating the X-axis direction in FIG. 1 to 8 show a state in which the case holding member is attached to the second surface.

Referring to FIGS. 1 to 8, sensor module 1 includes vibration sensor 10, case 30, case holding member 40, and cable 20. The case 30 has a cubic shape. The outer walls of the case 30 each have six flat faces. That is, in the case 30, the first surface 31 and the fourth surface 34 form a pair, and are arranged in parallel at intervals in the X-axis direction. In addition, the second surface 32 and the third surface 33 form a pair, and are arranged in parallel at an interval in the Z-axis direction. In addition, the fifth surface 35 and the sixth surface 36 form a pair, and are arranged in parallel at intervals in the Y-axis direction.

The cable 20 is drawn from the inside to the outside of the case 30 and from the fourth surface 34. The cable 20 is drawn out along the drawing direction S. The extraction direction S is a direction perpendicular to the fourth surface 34 (X-axis direction in FIGS. 1 and 2). The first surface 31 is inclined with respect to the drawing direction S. More specifically, the first surface 31 is orthogonal to the drawing direction S. In addition, inclining with respect to the drawing direction S means that it is not disposed in parallel with the drawing direction S.

The case 30 can be divided into two members, and is composed of a first case component 301 and a second case component 302. The first case constituent member 301 and the second case constituent member 302 are divided into the first case constituent member 301 and the second case constituent member 302, and the vibration sensor 10 is accommodated therein. Be combined. A dividing line T appears on the first surface 31, the fourth surface 34, the fifth surface 35, and the sixth surface 36.

The case 30 has a hollow protrusion 301A that protrudes from the fourth surface 34 in the X-axis direction. Referring to FIG. 2 in particular, the projecting portion 301A is formed by combining the first case component member 301 and the second case component member 302. The protruding portion 301 </ b> A supports a portion of the cable 20 on the case 30 side such that the cable 20 is pulled out along the pulling direction S.

Referring to FIG. 1 in particular, pin holes 641 are provided in the first surface 31 in the vicinity of the corner on the side where the third surface 33 and the fifth surface 35 are located. Further, in the first surface 31, pin holes 642 are provided in the vicinity of the corner on the side where the third surface 33 and the sixth surface 36 are located. The pin holes 641 and 642 have a shape into which round bar-like pins can be inserted. Furthermore, on the first surface 31, two

screw holes

701 and 702 are provided on the second surface 32 side of the dividing line T at intervals in the Y-axis direction.

With particular reference to FIG. 5, the first case component member 301 is provided with a screw hole 306 recessed in the Z-axis direction on the side closer to the fifth surface 35. The first case component member 301 is provided with a screw hole 307 recessed in the Z-axis direction on the side closer to the sixth surface 36.

Referring particularly to FIG. 5, the second case component member 302 is provided with a screw hole 421 penetrating in the Z-axis direction on the side closer to the fifth surface 35. A screw hole 422 penetrating in the Z-axis direction is provided on the side close to the sixth surface 36.

The positions where the screw holes 306 are provided and the positions where the screw holes 421 are provided coincide with each other, and the first case component 301 and the second case component 302 are fixed by the countersunk screw 671. Ru. The position where the screw hole 307 is provided matches the position where the screw hole 422 is provided, and the first case component 301 and the second case component 302 are fixed by the countersunk screw 672. Ru. Thus, the first case component 301 and the second case component 302 are combined.

Particularly with reference to FIG. 6, the first case constituent member 301 has a recess 311 recessed in the direction of the arrow indicating the Z-axis direction in the central region in the Y-axis direction, and a fifth region than the central region in the Y-axis direction. A protrusion 312 projecting in the direction opposite to the direction of the arrow indicating the Z-axis direction on the side close to the plane 35 of the plane, and the Z-axis direction on the side closer to the sixth plane 36 than the central region in the Y-axis direction The protrusion 313 which protrudes in the direction opposite to the direction of the arrow is provided. The second case constituent member 302 has a protrusion 321 having a shape corresponding to the recess 311 and protruding in the direction of the arrow indicating the Z-axis direction, and a recess protrusion in the direction opposite to the direction of the arrow indicating the Z-axis direction A recess 322 having a shape corresponding to 312 and a recess 323 having a shape corresponding to the recess protrusion 313 in the direction opposite to the direction of the arrow indicating the Z-axis direction are provided. When the first case component member 301 and the second case component member 302 are combined, the recess 311 and the protrusion 321 are arranged to be fitted. Similarly, the protrusion 312 and the recess 322 are arranged to fit each other. Similarly, the protrusion 313 and the recess 323 are arranged to fit with each other.

Referring particularly to FIG. 4, the vibration sensor 10 is housed in the first case component 301. The vibration sensor 10 is provided in the case 30 and attached to the lower part of the substrate 12. The substrate 12 is disposed on a fixed base 13 attached to the second case component 302. The vibration sensor 10 is electrically connected to the cable 20 via the wiring 11 provided in the case 30. The vibration sensor 10 can detect vibrations in a first direction, a second direction orthogonal to the first direction, and a third direction orthogonal to each of the first direction and the second direction. In the first embodiment, the vibration sensor 10 can detect vibrations in directions of three axes in the X axis direction, the Y axis direction, and the Z axis direction in FIG. 1.

The cable 20 transmits a detection signal obtained by the vibration sensor 10 to a vibration detection device or the like connected to the other end of the cable 20.

Referring to FIG. 1 in particular, the case holding member 40 is a flat magnet 43, an elastic member 44, and a connecting member 37 (see FIG. 9) which connects the case holding member 40 to the first surface 31. , A countersunk screw 61 (see FIG. 4 etc.) described later, a screw 65 (see FIG. 11 etc.) described later, an O-ring 66 (see FIG. 11 etc.) described later, and pins 71 and 72 (see FIG. And countersunk screws 681 and 682 (see FIG. 22 and the like) described later. The connection member 37, the screw 65, the O-ring 66, the

pins

71 and 72, and the

countersunk screws

681 and 682 are not used when the case holding member 40 is attached to the second surface 32. It is a member, It is a member used when the case holding member 40 demonstrated by FIG. 9 or later mentioned later is attached to the 1st surface 31. In FIG. The magnet 43 has a rectangular parallelepiped shape. The magnet 43 is attached to be in contact with the second surface 32. Referring to FIG. 4 in particular, the magnet 43 is provided with a screw hole 411 penetrating in the Z-axis direction in a central region in the X-axis direction. The second case component member 302 is provided with a screw hole 305 penetrating in the Z-axis direction in a central region of the second surface 32 in the X-axis direction. The positions of the screw holes 411 and the positions of the screw holes 305 are arranged to coincide with each other, and the magnet 43 and the second case component 302 are fixed by the countersunk screw 61. Thus, the magnet 43 and the second case component 302 are combined.

Referring to FIG. 1 in particular, an elastic member 44 is disposed in contact with the surface 41 of the magnet 43 on the side opposite to the side where the second case component 302 is located. The elastic member 44 is flat. The surface 441 of the elastic member 44 opposite to the side where the magnet 43 is located is a contact surface that contacts the subject when the case 30 is held with respect to the subject. The elastic member 44 is made of a rubber elastic sheet. By arranging the elastic member 44 in this manner, it becomes a non-slip that suppresses the displacement of the case 30 with respect to the subject. Therefore, the case 30 can be attached to the subject more stably.

Thus, the case holding member 40 is attached to the second surface 32. The case holding member 40 can also be attached to the first surface 31 and is configured to be selectable between a state of being attached to the second surface 32 and a state of being attached to the first surface 31. .

In particular, referring to FIG. 2, a mark 50 indicating the detection direction of the vibration sensor 10 is displayed on the outer wall of the case 30. The mark 50 is displayed on the third surface 33. The mark 50 is arranged to correspond to the detection direction of the vibration sensor 10 housed in the case 30. In the present embodiment, mark 50 includes arrow-shaped mark 51 indicating the X-axis direction, arrow-shaped mark 52 indicating the Y-axis direction, and arrow-shaped mark 53 indicating the Z-axis direction. The marks 51 to 53 are provided so as to protrude from the base surface of the outer wall of the third surface 33 in three dimensions. The detection direction of the vibration sensor 10 can be visually recognized by such a mark 50. Further, since the marks 51 to 53 are provided three-dimensionally, it is possible to confirm the detection direction of the vibration sensor 10 also by touch.

Next, the case where the case holding member 40 is attached to the first surface 31 will be described. FIG. 9 is a schematic perspective view of the sensor module 1 in the first embodiment. FIG. 10 is a plan view of the sensor module 1 according to the first embodiment. FIG. 10 is a view when the sensor module 1 is viewed from the direction opposite to the direction of the arrow indicating the Z-axis direction in FIG. FIG. 11 is a cross-sectional view of the sensor module 1 in the first embodiment. FIG. 11 is a cross-sectional view of the sensor module 1 cut along a plane indicated by AA in FIG. FIG. 12 is a cross-sectional view of the sensor module 1 in the first embodiment. FIG. 12 is a cross-sectional view of the sensor module 1 cut along a plane indicated by BB in FIG. FIG. 13 is a side view of the sensor module 1 according to the first embodiment. FIG. 13 is a view when the sensor module 1 is viewed from the direction opposite to the direction of the arrow indicating the Y-axis direction in FIG. FIG. 14 is a bottom view of the sensor module 1 according to the first embodiment. FIG. 14 is a view when the sensor module 1 is viewed from the direction of the arrow indicating the Z-axis direction of FIG. 9. FIG. 15 is a side view of the sensor module 1 according to the first embodiment. FIG. 15 is a view when the sensor module 1 is viewed from the direction of the arrow indicating the X-axis direction of FIG. 9. 9 to 15 show the case holding member 40 attached to the first surface 31. FIG.

Referring to FIGS. 9-15, connecting member 37 is arranged to be in contact with first surface 31. The connection member 37 has a rectangular parallelepiped shape. The connecting member 37 has the same size as the first surface 31 when viewed in plan in the X-axis direction. With reference to FIG. 12 in particular, in the cross section shown in FIG. 12, the screw penetrating in the X-axis direction on the side closer to the second surface 32 and the sixth surface 36 than the central region in the Z-axis direction A hole 372 is provided. Further, screw holes 371 are provided as shown in FIG. 21 described later. The position where the screw hole 372 is provided matches the position where the screw hole 702 is provided, and the second case component member 302 and the connection member 37 are fixed by the countersunk screw 682. Thus, the second case component 302 and the connecting member 37 are combined.

Referring to FIG. 11 in particular, a screw hole 373 penetrating in the X-axis direction is provided in a central region of the connecting member 37 in the Z-axis direction. The position where the screw hole 373 is provided matches the position where the screw hole 411 is provided, and the connection member 37 and the magnet 43 are fixed by the countersunk screw 61. Thus, the connecting member 37 and the magnet 43 are combined.

Referring to FIG. 11 in particular, a screw 65 is fitted in a screw hole 305 provided in the second case component member 302. An O-ring 66 is disposed between the screw 65 and the second case component 302.

Referring to FIG. 9 in particular, magnet 43 is arranged to be in contact with surface 374 located on the side opposite to the side where case 30 of connecting member 37 is located. The elastic member 44 is disposed to be in contact with the surface 41 opposite to the side where the connecting member 37 of the magnet 43 is located.

Next, in the sensor module 1, a case where the case holding member 40 is attached to the second surface 32 and then attached to the first surface 31 will be described. That is, the case where the case holding member 40 attached to the second surface 32 is removed and attached to the first surface 31 will be described. 16 to 25 are schematic perspective views for describing a case where the sensor module 1 of the first embodiment is attached to the first surface 31 from the state attached to the second surface 32. is there. FIG. 16 is a view showing a state in which the elastic member 44 is removed from the sensor module 1 in the first embodiment. FIG. 17 is a view showing the sensor module 1 shown in FIG. 16 with the flathead screw 61 removed. FIG. 18 is a view showing a state in which the magnet 43 is removed from the sensor module 1 shown in FIG. FIG. 19 shows the sensor module 1 shown in FIG. 18 with the screw 65 and the O-ring 66 attached. FIG. 20 is a view showing a state in which the pin 71 and the pin 72 are inserted into the sensor module 1 shown in FIG. FIG. 21 is a view showing a state in which the connecting member 37 is attached to the sensor module 1 shown in FIG. FIG. 22 is a view showing a state in which the case 30 and the connecting member 37 are combined. FIG. 23 is a view showing a state in which the magnet 43 is attached to the sensor module 1 shown in FIG. FIG. 24 is a view showing a state in which the connecting member 37 and the magnet 43 are combined. FIG. 25 is a view showing a state in which the elastic member 44 is attached to the magnet 43 of the sensor module 1 shown in FIG.

First, referring to FIG. 1, magnet 43 is disposed on second surface 32, and elastic member 44 is disposed on surface 41 of magnet 43 opposite to the side on which second case component member 302 is located. . Next, referring to FIGS. 1 and 16, elastic member 44 is removed from magnet 43. Then, the top of the flathead screw 61 is exposed. Next, referring to FIGS. 16 and 17, the flathead screw 61 fixing the magnet 43 and the second case component 302 is removed. Then, referring to FIGS. 17 and 18, magnet 43 is removed from second case component member 302. At this time, the tops of the countersunk screw 671 and the countersunk screw 672 are exposed. Next, referring to FIGS. 18 and 19, screw 65 is fitted into screw hole 305 formed in second case component member 302. An O-ring 66 is disposed between the screw 65 and the second case component 302. Referring to FIGS. 19 and 20, pins 71 and 72 are inserted into

pin holes

641 and 642, respectively.

Thereafter, referring to FIGS. 20 and 21, pins 71 and 72 are inserted into pin holes (not shown) provided in connecting member 37 so that connecting member 37 contacts first surface 31. Be placed. At this time, the positions where the screw holes 371 and 372 provided in the connecting member 37 are provided and the positions where the screw holes 701 and 702 provided in the second case constituent member 302 are provided are aligned. Be done.

Referring to FIGS. 21 and 22, countersunk

screws

681 and 682 are attached to the screw holes 371 and 372, and the connection member 37 and the case 30 are fixed. Referring to FIGS. 22 and 23, magnet 43 is arranged to be in contact with surface 374 opposite to the side where case 30 of connecting member 37 is located. The position where the screw hole 411 provided in the magnet 43 is provided and the position where the screw hole 373 formed in the connection member 37 are provided are aligned with each other.

Referring to FIG. 23 and FIG. 24, a countersunk screw 61 is attached to screw hole 411, and magnet 43 and connecting member 37 are fixed. Then, referring to FIGS. 24 and 25, elastic member 44 is arranged to be in contact with surface 41 located on the side opposite to the side on which connecting member 37 of magnet 43 is located.

Thus, in the sensor module 1 according to the first embodiment, the case holding member 40 including the magnet 43 is attached to the case 30. The case 30 is attached to the subject by the magnetic force of the magnet 43 included in the case holding member 40. The case 30 includes a first surface 31 and a second surface 32 intersecting the first surface 31. The case holding member 40 is configured to be selectable between the state of being attached to the second surface 32 and the state of being attached to the first surface 31, so the case holding member 40 is attached to the second surface 32. When the case 30 is attached to the subject, even if the cable 20 drawn from the case 30 interferes with the subject, the case holding member 40 is replaced with the first face 31 intersecting the second face 32. Can. Then, the pulling direction S of the cable 20 with respect to the subject can be changed, so that interference of the cable 20 can be prevented. As described above, according to the sensor module 1 of the first embodiment, it is possible to provide the sensor module 1 capable of facilitating the attachment of the case 30 to the subject.

In the above embodiment, the magnet 43 is flat. When the attachment point to the subject is flat, the flat magnet 43 can ensure a large contact area with the subject, and the case 30 can be stably attached to the subject.

In the above embodiment, the vibration sensor 10 can detect the X-axis direction, the Y-axis direction, and the Z-axis direction which are the directions of the three axes. The second surface 32 is disposed parallel to the X-axis direction and the Y-axis direction in which the vibration sensor 10 detects vibration. Also, the second surface 32 is disposed perpendicularly to the Z-axis direction. The first surface 31 is disposed parallel to the Y-axis direction and the Z-axis direction in which the vibration sensor 10 detects vibration. Further, the first surface 31 is disposed perpendicularly to the X-axis direction. By doing this, vibration in a direction parallel or perpendicular to the second surface 32 can be detected by the vibration sensor 10. Furthermore, even if the case holding member 40 is changed from the second surface 32 to the first surface 31, vibration in a direction parallel or perpendicular to the first surface 31 can be detected by the vibration sensor 10.

In the above embodiment, the connecting member 37 is attached to the first surface 31 using a pin and a countersunk screw. However, the present invention is not limited to this, and the following configuration may be employed. Instead of the above-described pin, a protrusion which is integral with the connecting member 37 and protrudes from a contact surface contacting the first surface 31 is provided on the connecting member 37. The first surface 31 is provided with a recess which is recessed to correspond to the protrusion. The connecting member 37 and the case 30 are fixed by fitting the projection into the recess and attaching the connecting member 37 to the first surface 31 with a flat screw. With such a configuration, it is possible to save time and effort for attaching the pins and to reduce the number of members.

In the above embodiment, the case holding member 40 includes the connecting member 37 and the

pins

71 and 72. However, the present invention is not limited to this. The case holding member 40 includes the connecting member 37 and the pins. Alternatively, the case holding member 40 may be directly attached to the first surface 31 of the case 30.

In the above embodiment, the O-ring 66 is disposed between the screw 65 and the second case constituent member 302. However, the present invention is not limited to this. Instead of the O-ring 66, For example, a flat washer, which is a thin metal plate member, may be disposed. The same applies to the following configurations.

Next, a modification is described. FIG. 26 is a schematic perspective view showing a first modified example of the sensor module 1 in the first embodiment. Referring to FIG. 26, magnet 46 is arranged to be in contact with second surface 32 of case 30. Referring to FIG. The magnet 46 is fixed to the second case component 302 by a countersunk screw 61. The magnet 46 is made of a rectangular parallelepiped magnet. The magnet 46 is smaller than the second surface 32 in plan view in the Z-axis direction. The magnet 46 is formed smaller in volume than the magnet 43. The elastic member 47 is arranged to be in contact with the surface 461 opposite to the side where the case 30 of the magnet 46 is located. The elastic member 47 has a flat plate shape. The shape of the elastic member 47 matches the shape of the magnet 46 when viewed in plan from the Z-axis direction. When the flat shape of the subject is narrow, the case 30 can be stably fixed to the subject by the magnet 46 whose shape is smaller than that of the magnet 43.

FIG. 27 is a schematic perspective view showing a second modification of the sensor module 1 in the first embodiment. Referring to FIG. 27, magnet 48 is arranged to be in contact with second surface 32 of case 30. The magnet 48 is fixed to the second case component 302 by a countersunk screw 61. The magnet 48 has a cylindrical shape. The elastic member 49 is arranged to be in contact with the surface 481 opposite to the side where the case 30 of the magnet 48 is located. The elastic member 49 has a disk shape. The shape of the elastic member 49 may be configured to match the shape of the magnet 48 in plan view in the Z-axis direction.

FIG. 28 is a schematic perspective view showing a sensor module unit according to an embodiment of the present invention. Referring to FIG. 28, sensor module unit 2 includes sensor module 1 and replacement case holding member 45 usable in place of case holding member 40. The replacement case holding member 45 is composed of a first case holding member 451 and a second case holding member 452. Each of the first case holding member 451 and the second case holding member 452 includes a magnet, and is configured to be selectable between a state of being attached to the second surface 32 and a state of being attached to the first surface 31 ing. The first case holding member 451 and the second case holding member 452 have different shapes.

The first case holding member 451 includes a flat magnet 46, a countersunk screw 61 for fixing the magnet 46 to the case 30, and an elastic member 47 disposed on one surface 461 of the magnet 46. The countersunk screw 61 is attached to a screw hole 463 provided in the magnet 46. Further, the second case holding member 452 is constituted by a cylindrical magnet 48, a countersunk screw 61 for fixing the magnet 48 to the case 30, and an elastic member 49 disposed on one surface 481 of the magnet 48. . The countersunk screw 61 is attached to a screw hole 483 provided in the magnet 48. The magnet 46 and the magnet 48 have the same magnetic force as the magnet 43, and only the shape is different. By doing this, the case holding member 45 having an appropriate shape can be selected and attached according to the shape of the subject. The case holding member 45 for replacement has been described as being different in shape from the case holding member 40, but the case holding member 45 may have a magnetic force different from that of the case holding member 40. Further, the case holding member 45 may be different from the case holding member 40 in terms of magnet and shape.

Second Embodiment
Next, Embodiment 2 of the sensor module of the present application will be described. The second embodiment has the same configuration as that of the first embodiment except for the case holding member 40. That is, in the second embodiment, the structure of the case holding member 40 is different from that of the first embodiment. Hereinafter, points different from the case of the first embodiment will be mainly described.

FIG. 29 is a schematic perspective view showing the structure of the sensor module 3 in the second embodiment. FIG. 30 is a schematic perspective view showing the structure of the sensor module 3 in the second embodiment. FIG. 31 is an exploded perspective view showing the case 30, the first member, the countersunk screw, the second member, and the magnet provided in the sensor module 3. As shown in FIG. 29 to 31 show a state in which a case holding member 80 described later is attached to the second surface 32. As shown in FIG.

Referring to FIGS. 29 to 31, the case holding member 80 includes a first member 82, a second member 83 as a magnet holding member, a first magnet 811, a second magnet 812, and a third magnet. 813, a fourth magnet 814, and a countersunk screw 61. The first magnet 811 to the fourth magnet 814 are four spherical magnets having the same shape. Referring to FIGS. 30 and 31 in particular, second member 83 is arranged to be in contact with second surface 32. The second member 83 includes a lid 83A and a bottom 83B.

The bottom portion 83B has a flat plate shape. The outer shape of the bottom portion 83B is rectangular when viewed in plan from the Z-axis direction. The outer shape of the bottom portion 83B is the same as the outer shape of the second surface 32 in plan view in the Z-axis direction. The bottom portion 83B is provided with four

concave portions

872, 873, 874, 875 which are hemispherically recessed in the direction of the arrow indicating the Z-axis direction. The four recesses 872 to 875 are provided in the vicinity of four rectangular corners at intervals, as viewed in plan in the Z-axis direction. In the bottom portion 83B, screw holes 871 penetrating in the Z-axis direction are provided in central regions in the X-axis direction and the Y-axis direction.

In the Y-axis direction, a recess 876 recessed in a round hole shape in the Z-axis direction is provided between the recess 872 and the recess 873. Similarly, in the X-axis direction, between the recess 873 and the recess 874, a recess 877 recessed in a round hole shape in the Z-axis direction is provided. In the Y-axis direction, between the recess 874 and the recess 875, a recess 878 recessed in a round hole shape in the Z-axis direction is provided. Between the recess 875 and the recess 872 in the X-axis direction, a recess 879 recessed in a round hole shape in the Z-axis direction is provided.

The lid 83A has a flat plate shape. The outer shape of the lid 83A is rectangular when viewed in plan from the Z-axis direction. The outer shape of the lid 83A is the same as the outer shape of the second surface 32 in plan view in the Z-axis direction. The lid 83A is provided with four through

holes

833, 834, 835, 836 penetrating in the Z-axis direction. The shape of the side wall surface surrounding the through hole 833 is a shape along a part of the spherical outer diameter surface of the first magnet 811. The side wall surface surrounding the through hole 834, the side wall surface surrounding the through hole 835, and the side wall surface surrounding the through hole 836 have the same shape as the side wall surface surrounding the through hole 833. The diameters of the through holes 833 to the through holes 836 are configured such that the diameter on the side where the bottom portion 83B is disposed is larger than the diameter on the side where the first member 82 is disposed. The through holes 833 to the through holes 836 are provided in the vicinity of the four rectangular corners at intervals, as viewed in plan from the Z-axis direction. The lid 83A is provided with a screw hole 831 penetrating in the Z-axis direction in a central region in the X-axis direction and the Y-axis direction.

The lid 83A is provided with four columnar protrusions (not shown) projecting in the direction of the arrow indicating the Z-axis direction so as to correspond to the positions where the recesses 876 to 879 are provided. . The four protrusions are arranged to be fitted into the recess 876 to the recess 879.

The first magnet 811 to the fourth magnet 814 are accommodated on the inner side of the recess 872 to the recess 875, respectively. The through holes 833 to the through holes 836 are arranged to correspond to the positions where the concave portions 872 to the concave portions 875 are provided, respectively. At this time, the first magnet 811 to the fourth magnet 814 are positioned in the through hole 833 to the through hole 836, respectively. In this manner, the first magnet 811 to the fourth magnet 814 are sandwiched and held by the lid 83A and the bottom 83B, respectively.

Referring to FIG. 31 in particular, the positions of screw holes 831 provided in lid portion 83A and the positions of screw holes 871 provided in bottom portion 83B coincide with each other. Furthermore, the position where the screw hole 871 is provided is arranged to coincide with the position where the screw hole 305 is provided. Then, the second member 83 and the second case constituent member 302 are fixed by the countersunk screw 61. Thus, the second member 83 and the second case component 302 are combined.

Referring to FIGS. 30 and 31, in particular, the first member 82 is disposed such that the first member 82 is in contact with the surface 832 opposite to the side where the second case component 302 of the second member 83 is located. Be done. The first member 82 has a flat plate shape. The first member 82 includes a first through hole 821 penetrating in the Z axis direction, a second through hole 822 penetrating in the Z axis direction, a third through hole 823 penetrating in the Z axis direction, and the Z axis direction. And a fourth through hole 824 penetrating therethrough. The first through holes 821 to the fourth through holes 824 are circular in plan view in the Z-axis direction. The first through hole 821 to the fourth through hole 824 have a diameter smaller than the shapes of the first magnet 811 to the fourth magnet 814. The first through hole 821, the second through hole 822, the third through hole 823, and the fourth through hole 824 are spaced apart from each other when the first member 82 is viewed in plan from the Z-axis direction. It is provided in the vicinity of rectangular four corners. The first through holes 821 to the fourth through holes 824 are arranged to correspond to the through holes 833 to the through holes 836, respectively. The first member 82 is made of an elastic member having elasticity. In the present embodiment, the first member 82 is made of an elastic sheet. By arranging the first member 82 in this manner, it becomes a non-slip member that suppresses the displacement of the case 30 with respect to the subject. Therefore, the case 30 can be attached to the subject more stably.

Next, a case where the sensor module 3 is mounted on the second surface 32 and then mounted on the first surface 31 will be described. 32 to 41 are schematic perspective views for describing a case where the sensor module 3 of the second embodiment is attached to the first surface 31 from the state attached to the second surface 32. is there. FIG. 32 is a diagram showing a state in which the first member 82 is removed from the sensor module 3 of the second embodiment. FIG. 33 is a view showing the sensor module 3 shown in FIG. 32 with the flathead screw 61 removed. FIG. 34 is a view showing a state in which the second member 83 is removed from the sensor module 3 shown in FIG. FIG. 35 is a view showing the sensor module 3 shown in FIG. 34 with the screw 65 and the O-ring 66 inserted. FIG. 36 is a view showing a state in which the

pins

71 and 72 are inserted into the sensor module 3 shown in FIG. FIG. 37 is a view showing a state where the connecting member 37 is attached to the sensor module 3 shown in FIG. FIG. 38 is a view showing a state in which the case 30 and the connecting member 37 are combined. FIG. 39 is a view showing a state in which the second member 83 is attached to the sensor module 3 shown in FIG. FIG. 40 is a view showing a state in which the connecting member 37 and the second member 83 are combined. FIG. 41 is a view showing a state in which the first member 82 is attached to the sensor module 3 shown in FIG.

Referring first to FIG. 32, first member 82 provided on surface 832 opposite to the side on which second case component 302 of second member 83 is located is removed from the state shown in FIG. Be Then, referring to FIGS. 32 and 33, countersunk screw 61 for fixing second member 83 and case 30 is removed.

Next, referring to FIGS. 33 and 34, second member 83 is removed from case 30. Then, the tops of

flathead screws

671 and 672 are exposed. Then, referring to FIGS. 34 and 35, screw 65 is attached to screw hole 305 formed in second case component member 302 so as to close screw hole 305. An O-ring 66 is disposed between the screw 65 and the second case component 302. Referring to FIGS. 35 and 36, pins 71 and 72 are inserted into

pin holes

641 and 642, respectively.

Then, referring to FIGS. 36, 37 and 38, connecting member 37 is arranged to be in contact with first surface 31. At this time, the

pins

71 and 72 are inserted into the pin holes provided in the connecting member 37. Then, the positions where the screw holes 371 and 372 provided in the connecting member 37 are provided and the positions where the screw holes 701 and 702 provided in the second case constituent member 302 are provided are aligned. The second case component member 302 and the connecting member 37 are fixed by countersunk

screws

681 and 682.

Next, referring to FIGS. 38 and 39, the second member 83 is disposed on the surface 374 opposite to the side on which the case 30 of the connecting member 37 is located. At this time, the position where the screw hole 831 provided in the second member 83 is provided and the position where the screw hole 373 provided in the connection member 37 are provided are aligned with each other.

39 and 40, a countersunk screw 61 is attached to the screw hole 831, and the second member 83 and the connecting member 37 are fixed. Next, referring to FIGS. 40 and 41, the first member 82 is disposed on the surface 832 opposite to the side where the case 30 of the second member 83 is located. At this time, a part of the first magnet 811 is exposed by the first through hole 821. In addition, a part of the second magnet 812 is exposed by the second through hole 822. In addition, a part of the third magnet 813 is exposed by the third through hole 823. In addition, a part of the fourth magnet 814 is exposed by the fourth through hole 824.

The sensor module 3 having the structure of the second embodiment can also provide the sensor module 3 capable of facilitating the attachment of the case 30 to the subject as in the first embodiment.

In the above embodiment, the case holding member 80 separates the first magnet 811, the second magnet 812, the third magnet 813, the fourth magnet 814, and the first magnet 811 to the fourth magnet 814. And a second member 83 as a magnet holding member for holding. By doing this, when the attachment point to the subject is a curved surface, the case 30 can be stably attached to the subject by the magnetic force of the plurality of separated magnets.

Next, a modification of the second embodiment will be described. FIG. 42 is a schematic perspective view showing a first modified example of the sensor module 3 in the second embodiment. Referring to FIG. 42, the case holding member 80 includes a first member 85, a second member 86, a first magnet 841, a second magnet 842, a third magnet 843 and a fourth magnet 844. including. The first magnet 841 to the fourth magnet 844 are four spherical magnets of the same shape. The first magnet 841 to the fourth magnet 844 have a shape in which the volume of the sphere is larger than that of the first magnet 811 to the fourth magnet 814.

The outer shape of the second member 86 is rectangular as viewed in plan in the Z-axis direction. The second member 86 has a larger area than the second surface 32 in plan view in the Z-axis direction. The second member 86 is provided with a larger volume than the second member 83. The first member 85 is disposed so as to be in contact with the surface 861 opposite to the side where the second case constituent member 302 of the second member 86 is located.

The first member 85 includes a first through hole 851 penetrating in the Z axis direction, a second through hole 852 penetrating in the Z axis direction, a third through hole 853 penetrating in the Z axis direction, and the Z axis direction. And a fourth through hole 854 penetrating therethrough. The first through hole 851, the second through hole 852, the third through hole 853, and the fourth through hole 854 are spaced apart from each other when the first member 85 is viewed in plan from the Z-axis direction. It is provided in the vicinity of rectangular four corners. The first member 85 is made of an elastic member having elasticity. In the present embodiment, the first member 85 is made of an elastic sheet. The second member 86 holds the first magnet 841, the second magnet 842, the third magnet 843, and the fourth magnet 844 as magnet holding members so as to be separated from each other. The sensor module having such a configuration may attach the case 30 to the subject so as to appropriately conform to the shape of the curved surface when the attachment point of the object has a curvature of the curved surface smaller than that of the sensor module 3. it can.

The sensor module unit 2 may be configured to include the case holding member 80 in the second embodiment.

In the above embodiment, the vibration sensor 10 is a vibration sensor capable of detecting vibration in the directions of three axes. However, the present invention is not limited to this, and a vibration sensor capable of detecting vibration in the direction of one axis is also possible. Good. By doing this, among the vibrations of the subject, it is possible to detect the vibration in the direction of one axis. The direction of one axis in this case is, for example, any of the X axis direction, the Y axis direction, and the Z axis direction. The vibration sensor 10 may be a vibration sensor capable of detecting vibration in the directions of two axes. By doing this, among the vibrations of the subject, vibrations in the directions of two axes can be detected. The directions of the two axes in this case are, for example, the X-axis direction and the Y-axis direction, the X-axis direction and the Z-axis direction, the Y-axis direction and the Z-axis direction.

It should be understood that the embodiments disclosed herein are illustrative in all respects and not restrictive in any respect. The scope of the present invention is not the above description, but is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1, 3 sensor modules, 2 sensor module units, 10 vibration sensors, 11 wiring, 12 substrates, 13 fixing bases, 20 cables, 30 cases, 301 first case components, 302 second case components, 305, 306 , 307, 371, 372, 373, 411, 421, 422, 463, 483, 701, 702, 831, 871 Screw hole, 301A protrusion, 31 first surface, 32 second surface, 33 third surface , 34 fourth surface, 35 fifth surface, 36 sixth surface, 311, 322, 323, 872, 874, 875, 876, 877, 788, 879 recessed portion, 312, 313, 321 projecting portion, 37 connecting members, 374, 41, 411, 461, 481, 832, 861 surfaces, 40, 45, 80 cases Holding member, 43, 46, 48 magnet, 44, 47, 49 elastic member, 451 first case holding member, 452 second case holding member, 61, 671, 672, 681, 682 countersunk screw, 50, 51, 52, 53 mark, 641, 642 pin hole, 65 screw, 66 O-ring, 71, 72 pin, 811, 841 first magnet, 812, 842 second magnet, 813, 843 third magnet, 814, 844 fourth magnet , 82, 85 first member, 821, 851 first through hole, 822, 852 second through hole, 823, 853 third through hole, 824, 854 fourth through hole, 833, 834, 835, 836 through hole , 83, 86 second member, 83A lid, 83B bottom

Claims

A sensor module attached by a magnetic force to a vibrating subject, comprising:
Vibration sensor,
A case for housing the vibration sensor;
A cable electrically connected to the vibration sensor and drawn from the inside to the outside of the case;
And a case holding member that includes a magnet and is attached to the outer wall of the case and holds the case with respect to the subject.
The outer wall of the case is
A first surface intersecting the drawing direction of the cable;
And a second surface intersecting the first surface,
The sensor module, wherein the case holding member is configured to be selectable between a state of being attached to the first surface and a state of being attached to the second surface.
The sensor according to claim 1, wherein the case holding member includes an elastic member arranged to include a contact surface which is a surface in contact with the subject when holding the case with respect to the subject. module.
The sensor module according to claim 1, wherein the magnet is flat.
The sensor module according to claim 1, wherein the case holding member includes a plurality of magnets and a magnet holding member that holds the plurality of magnets apart from each other.
The sensor module according to any one of claims 1 to 4, wherein a mark indicating a detection direction of the vibration sensor is displayed on the outer wall of the case.
The sensor module according to any one of claims 1 to 5, wherein a direction in which the vibration sensor detects vibration is parallel or perpendicular to the first surface and the second surface.
The sensor module according to any one of claims 1 to 6.
And an exchangeable case holding member that can be used in place of the case holding member;
The sensor module unit, wherein the case holding member for replacement has at least one of a magnetic force and a shape different from that of the case holding member.