WO2018030535A1

WO2018030535A1 - Sensor module with seat

Info

Publication number: WO2018030535A1
Application number: PCT/JP2017/029212
Authority: WO
Inventors: 剛真砂
Original assignee: 株式会社ブリヂストン
Priority date: 2016-08-10
Filing date: 2017-08-10
Publication date: 2018-02-15
Also published as: JP2018024352A

Abstract

The present invention is provided with: a sensor module 10 having a power supply unit 12, sensor unit 11, and a wiring unit 13 for connecting the supply unit 12 with the sensor unit 11; and a seat 20 having a bottom plate 21 for installing the sensor module 10 on an inner surface of a tire. The power supply unit 12, the sensor unit 11, and the wiring unit 13 are arranged in a plane parallel to a plate surface of the bottom plate 21 of the seat 20. Side surfaces 13A, 13B of the wiring unit 13 are provided with recessed parts in such a manner that when viewed from a vertical direction, the width therebetween decreases with distance away from the power supply unit 12 and the sensor unit 11, and the width is narrower at a vertical center part than at vertical end parts. A pair of holding members 22A, 22B which fit into the recessed parts are erected on the bottom plate 21 of the seat 20.

Description

Sensor module with pedestal

The present invention relates to a sensor module attached to the inner surface of a tire.

Conventionally, a sensor unit such as a pressure sensor, a temperature sensor, and an acceleration sensor, a sensor unit in which an amplifier and a transmitter are arranged, a power source unit including a battery or a power generation element, and a wiring unit that connects the sensor unit and the power source unit. A technology is known in which an integrated sensor module is mounted on the inner surface of a tire via a rubber pedestal to detect the state of the running tire, such as tire internal pressure, and to transmit the detected sensor information to the vehicle side. (For example, refer to Patent Document 1).

Japanese Patent Laying-Open No. 2015-160512

However, in the above configuration, the shape of the rubber pedestal is not only complicated, but the power supply unit, the sensor unit, and the wiring unit are stacked in the tire radial direction. Therefore, there was a problem that durability was not sufficient.

The present invention has been made in view of conventional problems, and an object of the present invention is to provide a sensor module with a pedestal having a simple configuration and excellent durability.

As a result of intensive studies, the inventor has arranged the power supply unit, the sensor unit, and the wiring unit in a plane parallel to the tire circumferential direction and the tire width direction, and provided a recess in the wiring unit, and the recess is formed on both sides of the base. As a result, the present inventors have found that the sensor module can be reliably gripped with a simple configuration and have reached the present invention.
That is, the present invention includes a sensor module having a power supply unit, a sensor unit, a wiring unit that connects the power supply unit and the sensor unit, and a pedestal having a bottom plate for installing the sensor module on the inner surface of a tire. A sensor module with a pedestal, wherein the power supply unit, the sensor unit, and the wiring unit are arranged in a plane parallel to a plate surface of the bottom plate of the pedestal, and a direction perpendicular to the plate surface of the bottom plate of the pedestal When the vertical direction, the arrangement direction is the length direction, and the direction perpendicular to the length direction in the plane parallel to the plate surface of the base plate of the pedestal is the width direction, the wiring portion has a length in the width direction. The width direction, which has a recess that becomes narrower as it is farther from the power supply unit and the sensor unit at both ends, and the base is erected on the bottom plate and fits into the recess of the wiring unit A pair of It characterized by having a member.

It should be noted that the summary of the invention does not list all necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

1 (a) to 1 (c) are diagrams showing a sensor module with a pedestal according to the present embodiment;
FIG. 2 is a view showing another example of a sensor module with a base according to the present invention;
FIG. 3 is a view showing another example of a sensor module with a base according to the present invention;
4 (a) to 4 (c) are diagrams showing another example of a sensor module with a base according to the present invention;
5A to 5C are diagrams showing another example of the sensor module with a pedestal according to the present invention.

Embodiments FIGS. 1A to 1C are diagrams showing the present embodiment, in which FIG. 1A is a plan view, FIG. 1B is a side view, and FIG. FIG.
A sensor module 10G with a pedestal according to the present embodiment includes a sensor module 10 including a sensor unit 11, a power supply unit 12, and a wiring unit 13, and a pedestal 20 including a bottom plate 21 and a pair of

holding members

22A and 22B. Is provided. The sensor module with base 10G is fixed to the inner surface of a tire (not shown) by bonding or the like.
In this example, the bottom plate 21 of the pedestal 20 fixed to the inner surface side of the tire is formed of a rectangular plate material whose sides are parallel to the tire circumferential direction and the tire width direction, and the sensor module 10 is replaced with the pedestal 20. The bottom plate 21 was placed on the plate surface. That is, the sensor unit 11, the power supply unit 12, and the wiring unit 13 of the sensor module 10 are arranged in a plane parallel to the plate surface of the bottom plate 21 of the base 20.
Here, the tire radial direction that is a direction perpendicular to the plate surface of the bottom plate 21 of the base 20 is the vertical direction, and the tire width direction that is the arrangement direction of the sensor modules 10 that is the direction from the sensor unit 11 toward the power supply unit 12 is the length. When the tire circumferential direction, which is a direction orthogonal to the direction, the tire radial direction and the tire width direction, is the width direction, the sensor unit 11 is a cylindrical member having an axis parallel to the vertical direction, and includes a pressure sensor, A sensor 11a such as a temperature sensor and an acceleration sensor, an amplifier 11b, and a transmitter 11c are accommodated.
The power supply unit 12 is also a cylindrical member having an axis parallel to the vertical direction, and a button battery 12B is built therein.
On the other hand, the wiring part 13 accommodates the power supply line 13p and the ground line 13q that connect the connection terminals 12p and 12q of the power supply part 12 and the

connection terminals

11p and 11q of the sensor part 11, and has dimensions in the length direction. The length of the sensor module 10 was about 1/8.
Moreover, in this example, as shown in FIG. 1A, the width that is the length dimension in the width direction is separated from the power supply unit 12 and the sensor unit 11 on the side surfaces 13 A and 13 B that are surfaces that intersect in the width direction. As shown in FIG. 1 (c), a concave portion is provided so that the width of the central portion in the vertical direction is narrower than the width of the end portion in the vertical direction.

In this example, as shown in FIGS. 1A and 1C, the side surfaces 13 A and 13 B of the wiring portion 13 of the sensor module 10 are supported by a pair of holding members 22 A and 22 B erected on the bottom plate 21 of the base 20. By holding, the sensor module 10 is gripped by the pedestal 20.
Specifically, the

holding members

22A and 22B are arranged so that the interval when viewed in the vertical direction is such that the interval in the width direction is narrow at the central portion, and at the central portion in the vertical direction between the

holding members

22A and 22B. By making the distance narrower than the distance between the end portions in the vertical direction, the

side surfaces

13A and 13B of the wiring portion 13 of the sensor module 10 can be fitted between the

holding members

22A and 22B.
At this time, the

holding members

22A and 22B are made of, for example, a resin plate, and the distance between the

holding members

22A and 22B may be set slightly smaller than the distance between the

side surfaces

13A and 13B of the wiring portion 13. In this case, the sensor module 10 can be securely held on the base 20 by the spring effect of the resin plate.

As mentioned above, although this invention was demonstrated using embodiment and an Example, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the embodiment. It is apparent from the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

For example, in the above embodiment, the arrangement direction of the sensor modules 10, which is the direction from the sensor unit 11 toward the power supply unit 12, is the tire width direction, but may be a tire circumferential direction. Or the direction which cross | intersects a tire circumferential direction and a tire width direction may be sufficient.
Moreover, in the said embodiment, although the length of the wiring part 13 was about 1/8 of the length of the sensor module 10, as shown in FIG. 2, while making the length of a wiring part long, holding member If the lengths of 22A and 22B are increased, the sensor module 10 can be gripped over a wide area, so that the sensor module 10 can be firmly gripped on the pedestal 20.
The length of the wiring portion 13 is preferably about 2/5 or less of the length of the sensor module 10. Thereby, the sensor module 10 can be reliably gripped by the base 20 without unnecessarily increasing the volume of the sensor module 10.
Moreover, in the said embodiment, although holding

member

22A, 22B was comprised from resin board, you may use a rubber member. When the

holding members

22A and 22B are rubber members, the

holding members

22A and 22B may have a plate shape as shown in FIGS. 1A to 1C, but are shown in FIG. Thus, it is preferable to use a block shape. Thereby, the sensor module 10 can be reliably gripped on the base 20 by the elastic force of the rubber member.

In the above embodiment, the length of the bottom plate 21 of the base 20 is slightly larger than the length of the

holding members

22A and 22B. However, as shown in FIGS. 4 (a) to 4 (c), the bottom plate 21 is expanded. If the sensor unit 11 and the power supply unit 12 are also configured to be mounted on the bottom plate 21, the sensor module 10G with a pedestal can be more firmly attached to the inner surface of the tire.
Alternatively, as shown in FIGS. 5 (a) to 5 (c), a pedestal 20 may be provided with a side wall 23 standing on the bottom plate 21 and covering the side surfaces of the power supply unit 12, the sensor unit 11, and the wiring unit 13. Good. Thereby, since the whole sensor module 10 is covered with holding members, such as rubber | gum, the sensor module 10 and the base 20 are integrated. Therefore, the sensor module 10 can be securely and stably gripped.

As mentioned above, although this invention was demonstrated using embodiment and an Example, when it puts together, it can describe as follows. That is, the present invention includes a sensor module having a power supply unit, a sensor unit, a wiring unit that connects the power supply unit and the sensor unit, and a pedestal having a bottom plate for installing the sensor module on the inner surface of a tire. A sensor module with a pedestal, wherein the power supply unit, the sensor unit, and the wiring unit are arranged in a plane parallel to a plate surface of the bottom plate of the pedestal, and a direction perpendicular to the plate surface of the bottom plate of the pedestal When the vertical direction, the arrangement direction is the length direction, and the direction perpendicular to the length direction in the plane parallel to the plate surface of the base plate of the pedestal is the width direction, the wiring portion has a length in the width direction. The width direction, which has a recess that becomes narrower as it is farther from the power supply unit and the sensor unit at both ends, and the base is erected on the bottom plate and fits into the recess of the wiring unit A pair of It characterized by having a member.
In this manner, the pair of holding members are erected on the bottom plate so that the interval in the width direction becomes narrow at the center, and the wiring portion is fitted between the pair of holding members. With this configuration, the sensor module can be reliably gripped.
Further, the distance between the pair of holding members in the vertical center is also narrower than the distance between the vertical ends, so that the wiring portion can be firmly held between the pair of holding members.
Moreover, since the length dimension and width method of the said baseplate were made larger than the length dimension and width dimension of the said sensor module, a sensor module can be stably mounted | worn on the tire inner surface.
In addition, since the pedestal further includes a side wall portion that stands on the bottom plate and covers the side surfaces of the power source portion, the sensor portion, and the wiring portion, the sensor module can be securely and stably gripped.

Sensor module with 10G pedestal, 10 sensor module,
11 sensor unit, 12 power supply unit, 12B button battery,
13 Wiring part, 13A, 13B Side surface of wiring part, 20 pedestal, 21 Bottom plate,
22A, 22B, 23 Side wall portions.

Claims

A sensor module with a pedestal comprising a sensor module having a power supply part, a sensor part, a wiring part for connecting the power supply part and the sensor part, and a pedestal having a bottom plate for installing the sensor module on an inner surface of a tire. There,
The power supply unit, the sensor unit, and the wiring unit are arranged in a plane parallel to the plate surface of the bottom plate of the pedestal,
The direction perpendicular to the plate surface of the base plate of the pedestal is the vertical direction
The arrangement direction is the length direction,
When the direction perpendicular to the length direction in the plane parallel to the plate surface of the base plate of the pedestal is the width direction,
The wiring part is
The width that is the length dimension in the width direction has a concave portion that becomes narrower as the distance from the power supply unit and the sensor unit is both ends,
The pedestal is
It is erected on the bottom plate and fits into the recess of the wiring part,
A sensor module with a pedestal comprising a pair of holding members having a narrow interval in the center in the width direction.
The sensor module with a pedestal according to claim 1, wherein the distance between the pair of holding members in the vertical center is narrower than the distance between the vertical ends.
3. The sensor module with a pedestal according to claim 1, wherein a length dimension and a width dimension of the bottom plate are larger than a length dimension and a width dimension of the sensor module.
The pedestal is
The sensor module with a pedestal according to claim 3, further comprising a side wall portion standing on the bottom plate and covering a side surface of the power source portion, the sensor portion, and the wiring portion.