WO2017149931A1 - Capteur à ultrasons et dispositif de capteur à ultrasons le comprenant - Google Patents

Capteur à ultrasons et dispositif de capteur à ultrasons le comprenant Download PDF

Info

Publication number
WO2017149931A1
WO2017149931A1 PCT/JP2017/000382 JP2017000382W WO2017149931A1 WO 2017149931 A1 WO2017149931 A1 WO 2017149931A1 JP 2017000382 W JP2017000382 W JP 2017000382W WO 2017149931 A1 WO2017149931 A1 WO 2017149931A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic sensor
claw
bumper
arm
claw portion
Prior art date
Application number
PCT/JP2017/000382
Other languages
English (en)
Japanese (ja)
Inventor
拓司 渡部
一將 山内
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Publication of WO2017149931A1 publication Critical patent/WO2017149931A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521—Constructional features

Definitions

  • the present invention relates to an ultrasonic sensor and an ultrasonic sensor device including the ultrasonic sensor, and more particularly to an ultrasonic sensor attached to a bumper and an ultrasonic sensor device including the ultrasonic sensor.
  • an ultrasonic sensor including a bezel member (first mounting member) and an ultrasonic sensor main body is known (see, for example, Patent Document 1).
  • the bezel member is inserted from the front side of the bumper into a mounting hole drilled so as to penetrate the front and back of the bumper of the vehicle, and sandwiches the bumper from the front and back.
  • the ultrasonic sensor main body houses an ultrasonic microphone.
  • the ultrasonic sensor main body is provided with an assembly claw.
  • the bezel member is provided with an elastically deformable arm portion. An assembly hole is formed in the arm portion.
  • the ultrasonic sensor main body is coupled and mounted to the bezel member from the back side of the bumper by engaging the assembly pawl and the assembly hole.
  • the ultrasonic sensor of the present disclosure includes a housing, a first claw portion, a second claw portion, and a transducer.
  • the housing has a cylindrical portion.
  • claw part protrudes from the side surface of a cylinder part.
  • claw part protrudes from the side surface of a cylinder part.
  • the transducer is accommodated in the cylindrical portion and transmits / receives (transmits / receives) an ultrasonic wave.
  • the first claw portion can be hooked on the first arm portion protruding from the surface through the hole to the back surface in the first mounting member attached to the surface of the first bumper provided with the hole.
  • the second claw portion can be hooked on the second arm portion protruding from the back surface in the thickness direction of the second bumper in the second mounting member mounted on the back surface of the second bumper.
  • the first claw portion and the second claw portion are separated from each other.
  • the second claw portion is preferably provided so that a gap is formed between the second claw portion and the first arm portion in a state where the first claw portion is caught by the first arm portion.
  • the first claw portion and the second claw portion are separated from each other.
  • the first claw portion is preferably provided so that a gap is formed between the first claw portion and the second arm portion in a state where the second claw portion is caught by the second arm portion.
  • the cylindrical portion has an opening exposing the ultrasonic wave transmitting / receiving surface of the transducer, and the first claw portion is provided at a position closer to the opening than the second claw portion.
  • the cylindrical portion includes a first cylindrical body and a second cylindrical body in which the control unit is accommodated, and the outer diameter of the second cylindrical body is larger than the outer diameter of the first cylindrical body. Preferably it is.
  • the ultrasonic sensor device of the present disclosure includes the above-described ultrasonic sensor and the first mounting member or the second mounting member.
  • the first attachment member has a first arm portion that is attached to the surface of the first bumper having a hole and protrudes to the back surface through the hole.
  • the second attachment member has a second arm portion attached to the back surface of the second bumper and protruding from the back surface.
  • the first claw portion can be hooked on the first arm portion protruding from the surface through the hole to the back surface in the first mounting member attached to the surface of the first bumper.
  • claw part can be hooked on the 2nd arm part of the 2nd attachment member attached to the back surface of the 2nd bumper. Therefore, since the ultrasonic sensor of the present disclosure includes the first claw portion and the second claw portion, both the first attachment member that penetrates the first bumper and the second attachment member that does not penetrate the second bumper. It can be attached to.
  • the above-described ultrasonic sensor can be hooked on the first arm portion of the first attachment member attached to the surface of the first bumper, and attached to the back surface of the second bumper. It is possible to hook onto the second arm portion of the second mounting member.
  • FIG. 1 is a perspective view of the ultrasonic sensor according to the embodiment.
  • 2A is a left side view of the ultrasonic sensor of FIG.
  • FIG. 2B is a front view of the ultrasonic sensor of FIG.
  • FIG. 3 is an exploded perspective view of the ultrasonic sensor of FIG.
  • FIG. 4 is an exploded perspective view of an ultrasonic sensor device including the ultrasonic sensor of FIG. 1 and a first attachment member.
  • FIG. 5 is a perspective view of an ultrasonic sensor device including the ultrasonic sensor of FIG. 1 and a first attachment member.
  • FIG. 6 is a cross-sectional view of the ultrasonic sensor device including the ultrasonic sensor of FIG. 1 and a first attachment member on the XZ plane.
  • FIG. 1 is a perspective view of the ultrasonic sensor according to the embodiment.
  • 2A is a left side view of the ultrasonic sensor of FIG.
  • FIG. 2B is a front view of the ultrasonic sensor of FIG.
  • FIG. 7 is an exploded perspective view of an ultrasonic sensor device including the ultrasonic sensor of FIG. 1 and a second attachment member.
  • FIG. 8 is a perspective view of an ultrasonic sensor device including the ultrasonic sensor of FIG. 1 and a second attachment member.
  • FIG. 9 is a cross-sectional view of the XZ plane of the ultrasonic sensor device including the ultrasonic sensor of FIG. 1 and a second attachment member.
  • This indication is made in view of the above-mentioned problem, and provides an ultrasonic sensor which can be attached to both the 1st attachment member which penetrates a bumper, and the 2nd attachment member which does not penetrate a bumper, and an ultrasonic sensor device provided with the same Objective.
  • the ultrasonic sensor 1 of the present embodiment will be described with reference to FIGS.
  • the ultrasonic sensor 1 is attached to a vehicle bumper, for example.
  • the ultrasonic sensor 1 transmits ultrasonic waves and receives reflected ultrasonic waves.
  • the ultrasonic sensor 1 is configured so as to be able to determine, for example, the presence or absence (presence / absence) of an object near the bumper and to obtain the distance to the object near the bumper.
  • the ultrasonic sensor 1 includes a housing 2, a first claw part 10, a second claw part 20, and a transducer 3.
  • the housing 2 has a cylindrical portion 200.
  • the first claw portion 10 protrudes from the side surface of the tube portion 200.
  • the second claw portion 20 protrudes from the side surface of the cylindrical portion 200.
  • the transducer 3 is accommodated in the cylindrical portion 200 and transmits and receives ultrasonic waves.
  • the first claw portion 10 has a hole from the first surface 111 (front surface) in the bezel 8 (first mounting member) attached to the first surface 111 (front surface) of the first bumper 110 having the hole 113 shown in FIG.
  • the second claw portion 20 extends from the second surface 122 (back surface) to the second bumper.
  • the second arm portion 94 protruding in the thickness direction of 120 can be hooked.
  • the directions of arrows indicating x, y, and z shown at the lower right in each of FIGS. 1 to 9 are defined as an x direction, a y direction, and a z direction, respectively.
  • the x direction is a direction parallel to the axis of the cylindrical portion 200 and the transducer 3 transmitting ultrasonic waves.
  • the y direction and the z direction are directions orthogonal to each other on a plane orthogonal to the x axis.
  • the transducer 3 has a transmission / reception surface for transmitting and receiving ultrasonic waves. As shown in FIG. 1, the transducer 3 transmits and receives ultrasonic waves on the vibration surface 31. That is, the vibration surface 31 is an ultrasonic wave transmission / reception surface.
  • the vibration surface 31 is, for example, a bottom surface on the outside of a bottomed cylindrical case.
  • the case of the transducer 3 opens in the direction opposite to the x direction.
  • An ultrasonic transducer piezoelectric element
  • the ultrasonic transducer is electrically connected to the control unit 7 (see FIG. 3). The ultrasonic vibrator is vibrated by an electric signal from the control unit 7.
  • the transducer 3 vibrates the vibration surface 31 and transmits ultrasonic waves. Further, the vibration surface 31 vibrates when receiving an ultrasonic reflected wave.
  • the ultrasonic transducer outputs an electrical signal to the control unit 7 in accordance with the vibration.
  • the control unit 7 includes, for example, a substrate on which a microcomputer is mounted.
  • the microcomputer can determine the presence / absence (presence / absence) of an object and the distance to the object based on the electrical signal from the ultrasonic transducer.
  • the housing 2 is formed of a resin material.
  • the cylindrical portion 200 of the housing 2 includes a first cylindrical body 21 and a second cylindrical body 22, as shown in FIGS.
  • the cylinder part 200 is formed in a bottomed cylinder shape whose axis faces the x direction.
  • An opening 231 is provided at one end of the cylindrical portion 200.
  • the cylinder part 200 accommodates the control part 7 and the transducer 3 in the internal space.
  • a connector 23 is provided on the side surface of the cylindrical portion 200.
  • the first cylinder 21 is formed in a cylindrical shape.
  • the axis of the first cylinder 21 is along the x direction.
  • An opening 231 (see FIG. 3) is formed at the end of the first cylinder 21 in the x direction.
  • the inner diameter of the opening 231 of the first cylinder 21 is larger than the outer diameter of the transducer 3.
  • a part of the transducer 3 is accommodated in the internal space of the first cylinder 21.
  • the first cylinder 21 is formed to be coaxial with the transducer 3 housed in the opening 231.
  • the end of the first cylinder 21 opposite to the x direction is connected to the second cylinder 22, and the internal space of the first cylinder 21 is connected to the internal space of the second cylinder 22.
  • the second cylinder 22 is formed in a cylindrical shape.
  • the axis of the second cylinder 22 is on the axis of the first cylinder 21 and is formed in a rectangular cylinder shape that is flat in the y direction when viewed from the x direction.
  • a flat surface 222 that intersects the z direction is formed on the peripheral surface of the second cylindrical body 22.
  • the second cylinder 22 has a dimension in the y direction that is longer than a dimension in the z direction.
  • the corner portion of the side surface 221 in the second cylinder 22 is rounded.
  • the dimension of the second cylinder 22 in the y direction is larger than the outer diameter of the first cylinder 21. Since the thickness of the second cylinder 22 is the same as the thickness of the first cylinder 21, the internal space of the second cylinder 22 is wider in the y direction than the internal space of the first cylinder 21. ing. The internal space of the second cylinder 22 is connected to the internal space of the first cylinder 21.
  • the control unit 7 is accommodated in the internal space of the second cylinder 22. Since the dimension in the y direction in the internal space of the second cylinder 22 is larger than the outer diameter of the first cylinder 21, for example, when the size of the substrate of the control unit 7 is larger than the outer diameter of the first cylinder 21. Even if it exists, the control part 7 can be accommodated in the 2nd cylinder 22.
  • FIG. The opening on the opposite side to the x direction of the second cylinder 22 is closed by the bottom plate 64 in a state where the control unit 7 is housed in the second cylinder 22.
  • the transducer 3 is accommodated in the cylindrical portion 200 so as to be coaxial with the first cylindrical body 21 with a part of the vibration surface 31 and the side surface 32 protruding from the opening 231.
  • a side surface 32 of the transducer 3 protruding from the first cylinder 21 is covered with the elastic member 5.
  • a pedestal 63, a fixing member 62, and a cover 61 are disposed between the transducer 3 and the first cylinder 21.
  • the pedestal 63, the fixing member 62, and the cover 61 are made of an elastic material such as rubber, for example.
  • the pedestal 63, the fixing member 62, and the cover 61 are formed in a ring shape.
  • the pedestal 63 is disposed on the surface of the flange portion 234 that protrudes from the inner surface 232 of the first cylindrical body 21 toward the axis.
  • the transducer 3 is housed in the cylindrical portion 200 in a state in which the pedestal 63, the transducer 3, the fixing member 62, the cover 61, and the elastic member 5 are arranged in this order along the x direction.
  • the inner diameters of the fixing member 62 and the cover 61 are substantially the same as the outer diameter of the transducer 3.
  • the fixing member 62 and the cover 61 are disposed between the side surface 32 of the transducer 3 and the inner side surface 232 of the first cylindrical body 21 with the transducer 3 being passed through the respective holes.
  • the cover 61 closes the gap between the transducer 3 and the inner surface 232 of the first cylinder 21.
  • the fixing member 62 is in contact with the transducer 3 and is sandwiched between the cover 61 and the pedestal 63 to restrict the movement of the transducer 3.
  • the pedestal 63 suppresses vibration from being transmitted from the first cylinder 21 to the transducer 3.
  • the pedestal 63 also prevents vibration from being transmitted from the transducer 3 to the first cylinder 21.
  • the pedestal 63, the fixing member 62, and the cover 61 make it difficult for a gap to be formed between the inner surface 232 of the first cylinder 21 and the transducer 3.
  • the elastic member 5 is made of a soft resin material such as rubber.
  • the elastic member 5 is formed in a cylindrical shape with both ends opened.
  • the inner diameter of the elastic member 5 is substantially equal to the outer diameter of the transducer 3.
  • a flange 51 protruding in the radial direction is formed at the end of the elastic member 5 in the direction opposite to the x direction.
  • the outer diameter of the flange 51 is substantially the same as the outer diameter of the side surface 210 of the first cylinder 21.
  • a portion of the transducer 3 protruding in the x direction from the opening 231 of the first cylinder 21 is passed through the hole of the elastic member 5. That is, the portion of the transducer 3 exposed from the cylindrical portion 200 is surrounded by the elastic member 5.
  • the elastic member 5 suppresses the vibration from the bezel 8 and the holding member 9 from being transmitted to the transducer 3.
  • the elastic member 5 also suppresses vibration from being transmitted from the transducer 3 to the bezel 8 and the holding member 9.
  • a controller 7 is disposed in the opening of the housing 2 in the direction opposite to the x direction.
  • the control unit 7 controls the transducer 3 to cause the transducer 3 to transmit / receive ultrasonic waves.
  • substrate of the control part 7 is fixed in the 2nd cylinder 22 by screwing etc., for example.
  • the opening in the direction opposite to the x direction in the housing 2 is closed by the bottom plate 64.
  • the housing 2 is filled with a resin material. This makes it difficult for foreign matter such as water and dust to enter the housing 2.
  • the bottom plate 64 and the housing 2 can be bonded with an adhesive or the like to ensure the hermeticity of the internal space of the housing 2, the filling of the resin material can be omitted.
  • the sealing property of the internal space of the housing 2 can be secured by the resin material filled in the internal space of the housing 2, the bottom plate 64 can be omitted.
  • the transducer 3 vibrates the ultrasonic vibrator and transmits ultrasonic waves from the vibration surface 31.
  • the transducer 3 receives the reflected ultrasonic wave at the vibration surface 31.
  • a voltage is generated in the ultrasonic vibrator due to the vibration of the vibration surface 31 generated when the reflected ultrasonic wave is received.
  • a voltage signal from the ultrasonic transducer is input to the control unit 7 to the microcomputer of the control unit 7.
  • the microcomputer based on the time difference from when the ultrasonic wave is transmitted from the vibration surface 31 to when the reflected wave is received by the vibration surface 31, is the distance from the vibration surface 31 to the object that has reflected the ultrasonic wave. Is obtained by calculation or the like.
  • the first cylinder 21 is provided with four first claw portions 10. More specifically, two first claw portions 10 are provided on the side surface 210 on the z direction side of the first cylindrical body 21. The remaining two first claw portions 10 are provided on the side surface 210 of the first cylindrical body 21 on the opposite side to the z direction. In the following description, the two first claw portions 10 provided on the side surface 210 in the z direction of the first cylindrical body 21 will be described.
  • the two first claw portions 10 are provided so as to protrude from the side surface 210 of the first cylindrical body 21 in the z direction.
  • the two first claw portions 10 are arranged in the y direction.
  • Each of the two first claw portions 10 is formed with a tapered surface 102.
  • the tapered surface 102 is formed so that the protruding dimension of the end portion on the x direction side of the first claw portion 10 is smaller than the protruding dimension of the first claw portion 10 in the reverse direction of the x direction.
  • a locking surface 101 is formed at a portion of the first claw portion 10 in the direction opposite to the x direction.
  • the locking surface 101 is a surface that intersects the x-axis.
  • An overhang portion 105 is formed between the first claw portion 10 and the second cylinder 22 on the side surface 210 of the first cylinder 21.
  • the overhang part 105 projects from the side surface 210 of the first cylinder 21 in the radial direction of the first cylinder 21.
  • the dimension of the overhang part 105 in the y direction is substantially equal to the dimension of the first claw part 10 in the y direction.
  • a flat surface 103 that intersects the z direction is formed in the overhang portion 105.
  • the plane 103 is flush with the plane 222 of the second cylinder 22.
  • the first tubular body 21 is provided with four overhanging portions 212. More specifically, two projecting portions 212 are provided on the side surface 210 on the z-direction side of the first cylindrical body 21. The remaining two overhang portions 212 are provided on the side surface 210 of the first cylinder 21 on the opposite side to the z direction. In the following description, the two overhang portions 212 provided on the side surface 210 in the z direction of the first cylindrical body 21 will be described. The two overhang portions 212 are provided on both sides of the two first claw portions 10. In other words, two first claw portions 10 are provided between the two overhang portions 212. The overhanging portion 212 protrudes from the side surface 210 of the first cylinder 21 in the y direction and the z direction, respectively.
  • a plane 213 that is parallel to a plane that intersects the z-axis is formed in the overhanging portion 212.
  • the flat surface 213 is formed at a portion adjacent to the first claw portion 10 in the overhang portion 212.
  • the overhanging portion 212 is formed with a plane 214 that is parallel to a plane that intersects the x-axis.
  • a flat surface 104 is formed at the tip of the first claw portion 10 protruding in the z direction.
  • the plane 104 is a plane that intersects the z-axis (a plane including the x-axis and the y-axis).
  • the two first claw portions 10 and the two overhang portions 212 are symmetric with respect to the axis of the first cylinder body 21, so that the z-direction side in the first cylinder body 21 is Side surface 210 and side surface 210 opposite to the z direction.
  • the “z direction” is changed to the “opposite direction to the z direction”. The description is omitted because it may be replaced.
  • Two side claws 20, four guides 4, and two planes 222 are provided on the side surface of the second cylinder 22.
  • the two flat surfaces 222 are respectively provided on the side surface on the z direction side of the second cylindrical body 22 and the side surface on the opposite side to the z direction of the second cylindrical body 22.
  • On the plane 222 one second claw portion 20 and two guide portions 4 are provided.
  • one second claw portion 20 and two guide portions 4 provided on the plane 222 on the z direction side in the second cylindrical body 22 will be described.
  • the second claw portion 20 protrudes from the plane 222 in the z direction.
  • claw part 20 is provided so that it may protrude in the z direction from the plane 222.
  • a tapered surface 202 is formed on the second claw portion 20.
  • the tapered surface 202 is formed such that the protruding dimension of the second claw portion 20 from the side surface 221 of the second cylinder 22 decreases in the x direction.
  • a locking surface 201 is formed at a portion of the second claw portion 20 in the direction opposite to the x direction.
  • the locking surface 201 is a surface that intersects the x-axis.
  • a groove 205 common to the tapered surface 202 and the flat surface 203 is provided in the second claw portion 20 along the x direction. The groove 205 is provided to prevent the resin material from contracting when the second claw portion 20 is molded and causing sink marks in the second claw portion 20.
  • a flat surface 203 is formed at the tip of the second claw portion 20 on the x direction side.
  • the dimension from the flat surface 203 of the second claw part 20 to the surface of the collar part 51 on the y direction side is referred to as “dimension L1”.
  • the dimension L1 (refer FIG. 6) is mentioned in detail later, it is set to the magnitude
  • Two guide portions 4 are formed on the flat surface 222 of the second cylindrical body 22.
  • the two guide portions 4 are respectively provided on both sides of the second claw portion 20.
  • the guide part 4 includes a protruding part 401 and an overhang part 402.
  • the protruding portion 401 is provided so as to protrude in the z direction from the plane 222 of the second cylindrical body 22.
  • the overhanging portion 402 protrudes in the y direction from the side surface of the protruding portion 401 opposite to the second claw portion 20.
  • a concave portion 403 is formed by the side surface 221 of the second cylindrical body 22, the protruding portion 401, and the overhang portion 402.
  • a tapered surface 404 is formed at a portion adjacent to the second cylindrical body 22 in the protruding portion 401.
  • the tapered surface 404 is formed so that the protruding dimension of the protruding portion 401 becomes smaller as it approaches the second cylindrical body 22.
  • a flat surface 204 is formed at the tip of the portion protruding in the z direction in the second claw portion 20.
  • the plane 204 is a plane that intersects the z-axis (a plane that includes the x-axis and the y-axis).
  • claw part 20 and the two guide parts 4 are provided also in the plane 222 on the opposite side to the z direction in the 2nd cylinder 22, as shown to FIG. 2A and 2B.
  • the “z direction” can be read as “a direction opposite to the z direction”. Since it is good, explanation is omitted.
  • the connector 23 includes a peripheral wall 230 formed in a cylindrical shape and pins arranged inside the peripheral wall.
  • the peripheral wall 230 is along the y direction.
  • the connector 23 is formed in a cylindrical shape that is flat in the z direction when viewed from the y direction.
  • the connector 23 is connected to the side surface 210 of the first cylinder body 21 and the side surface 221 of the second cylinder body 22.
  • the internal space of the connector 23 is connected to the internal space of the first cylinder 21 and the internal space of the second cylinder 22.
  • connection pins that are electrically connected to the control unit 7 are arranged.
  • a cable terminal connected to the connection pin is inserted.
  • a control signal for controlling the control unit 7 is supplied to the cable at the cable terminal.
  • the bezel 8 is attached to the first bumper 110 (see FIG. 6) of the vehicle, for example.
  • the first bumper 110 is provided with a hole 113 that penetrates the first bumper 110 in the x direction.
  • the bezel 8 has two first arm portions 82.
  • the two first arm portions 82 project from the first surface 111 side of the first bumper 110 through the hole 113 provided in the first bumper 110 and protrude toward the second surface 112 side of the first bumper 110.
  • the ultrasonic sensor 1 is attached to the bezel 8 by being sandwiched between the two first arm portions 82.
  • the bezel 8 will be described.
  • the bezel 8 further includes a cylindrical body 81, a flange portion 80, and four support portions 85.
  • the bezel 8 is made of a resin material.
  • the axis of the cylinder 81 is along the x direction.
  • the flange 80 protrudes in the radial direction from the end of the cylindrical body 81 in the x direction.
  • An end 812 of the cylindrical body 81 in the direction opposite to the x direction is formed so as to be parallel to a plane intersecting the x axis.
  • the elastic member 5 and a part of the transducer 3 are arranged.
  • the first surface 801 of the flange 80 is exposed to the first surface 111 (front surface) (see FIG. 6) of the first bumper 110 in a state where the bezel 8 is attached to the first bumper 110.
  • the second surface 802 in the opposite direction to the x direction in the flange 80 is parallel to the surface intersecting the x axis.
  • the second surface 802 of the flange 80 is in contact with the first surface 111 of the first bumper 110.
  • the two first arm portions 82 protrude from the first surface 111 side of the first bumper 110 through the hole 113 of the first bumper 110 to the second surface 112 side (back surface) (see FIG. 6).
  • the first arm portion 82 includes two support portions 820, one locking portion 84, two spring portions 840, and two gaps 83.
  • the two support portions 820 protrude from the second surface 802 of the flange portion 80 in the direction opposite to the x direction.
  • the two support portions 820 are arranged in the y direction.
  • the support portion 820 is formed with a plane 821 that is parallel to a plane that intersects the z-axis.
  • the plane 821 is provided at each end in the y direction of the support portion 820.
  • the dimension from the front end of the support part 820 to the surface of the end part 812 of the cylinder 81 is referred to as “dimension L2”.
  • the dimension L2 corresponds to the length of the first arm portion 82.
  • the dimension L2 is smaller than the dimension L1 from the plane 203 of the 2nd nail
  • FIG. In other words, the support portion 820 is formed such that the dimension L2 is smaller than the dimension L1.
  • a locking part 84 and two gaps 83 are provided between the two support parts 820.
  • the locking portion 84 and the gap 83 are provided so that the first claw portion 10 is caught by the support portion 820.
  • the locking portion 84 is disposed at the end of the two planes 821 in the direction opposite to the z direction.
  • the locking portion 84 is formed integrally with the two support portions 820.
  • the locking portion 84 has a locking surface 843 that intersects the x-axis and a plane 842 that intersects the plane that intersects the z-axis.
  • Two spring portions 840 are provided on the locking surface 843.
  • the two spring portions 840 protrude from the locking surface 843 of the locking portion 84 in the x direction.
  • a pressing portion 841 projecting in the z direction is provided at the tip of each of the two spring portions 840.
  • the dimension from the two pressing portions 841 to the second surface 802 of the flange portion 80 is smaller than the thickness of the first bumper 110.
  • the two pressing portions 841 and the flange portion 80 sandwich the first bumper 110.
  • the two pressing portions 841 are arranged such that when the first bumper 110 is sandwiched between the flange portions 80, a portion that is in contact with the edge of the hole 113 of the first bumper 110 is pressed against the edge of the hole 113 so as to follow the edge of the hole 113.
  • the first bumper 110 is pressed against the second surface 802 of the flange 80. Since the two pressing portions 841 are deformed according to the thickness of the first bumper 110, the two pressing portions 841 can be attached to the first bumper 110 having various thicknesses.
  • the bezel 8 is attached to the first bumper 110 by the two pressing portions 841 and the flange 80 sandwiching the first bumper 110.
  • the first arm portion 82 is difficult to bend in the direction in which the two first arm portions 82 are separated from each other. Further, by arranging the ultrasonic sensor 1 between the two first arm portions 82, the first arm portion 82 is less likely to bend in the direction in which the two first arm portions 82 approach each other.
  • the first arm portion 82 is sandwiched between the ultrasonic sensor 1 and the edge of the hole 113 of the first bumper 110.
  • the bezel 8 is fixed to the first bumper 110 while being sandwiched between the ultrasonic sensor 1 and the edge of the hole 113 of the first bumper 110.
  • the spring portion 840 can apply a restoring force to the support portion 820 to return the support portion 820 to the original position when the support portion 820 is bent in the direction along the z-axis.
  • a gap 83 is provided between the spring portion 840 and the support portion 820.
  • the gap 83 is a space surrounded by the spring portion 840, the support portion 820, the locking surface 843 of the locking portion 84, and the second surface 802 of the flange portion 80.
  • the width of the gap 83 in the y direction is wider than the width of the first claw portion 10 in the ultrasonic sensor 1 in the y direction.
  • the support portion 85 is formed in a plate shape.
  • the support portion 85 protrudes from the second surface 802 of the flange portion 80 in the direction opposite to the x direction.
  • the support portion 85 is provided with a curved surface 851 that is curved along the side surface 210 of the first cylinder 21.
  • the support portion 85 is formed so as to be integrated with the flange portion 80 and the support portion 820.
  • the support portion 85 limits the amount of bending of the support portion 820 when the support portion 820 is applied with a force in the z direction (and the opposite direction) to the flange portion 80.
  • the support portion 820 is inserted into the hole 113 from the first surface 111 of the first bumper 110 in the direction opposite to the x direction. With the pressing portion 841 in contact with the edge of the hole 113, the support portion 820 is further pressed in the direction opposite to the x direction, so that the spring portion 840 is bent in a direction approaching the cylinder 81. When the spring portion 840 is pushed in a direction approaching the axis of the cylindrical body 81 until the second surface 802 of the flange portion 80 contacts the first bumper 110, the pressing portion 841 passes through the hole 113.
  • the pressing portion 841 that has passed through the hole 113 returns to its original position by the bending restoring force of the spring portion 840, and the pressing portion 841 contacts the first bumper 110 and applies a force in the x direction to the first bumper 110.
  • the bezel 8 is attached to the first bumper 110 by the pressing portion 841 and the flange portion 80 sandwiching the first bumper 110.
  • the structure in which the ultrasonic sensor 1 is attached to the bezel 8 will be described.
  • the bezel 8 is attached to the first bumper 110 (see FIG. 6), but the illustration of the first bumper 110 is omitted in FIGS.
  • a method for attaching the ultrasonic sensor 1 to the bezel 8 will be described.
  • the operator places the ultrasonic sensor 1 on the first arm portion 82 side of the bezel 8 so that the transducer 3 of the ultrasonic sensor 1 and the cylindrical body 81 of the bezel 8 are coaxial.
  • the operator brings the ultrasonic sensor 1 close to the bezel 8 until the transducer 3 and the elastic member 5 are arranged in the cylinder 81.
  • the two support portions 820 of the bezel 8 are returned to their original positions by the restoring force of the bending, and are locked.
  • the locking surface 843 of the portion 84 is in contact with the locking surfaces 101 of the four first claw portions 10 of the ultrasonic sensor 1.
  • the end portion 812 of the cylinder 81 presses the flange portion 51 of the elastic member 5 in the direction opposite to the x direction to elastically deform the flange portion 51. Therefore, the housing 2 is in a state where movement in the x direction is restricted by the locking portion 84 of the bezel 8 and the cylinder 81.
  • the four flat surfaces 821 of the bezel 8 are in contact with the flat surfaces 213 of the four overhanging portions 212 in a state where the elastic member 5 and a part of the transducer 3 are disposed in the cylinder 81, respectively.
  • the flat surfaces 842 of the two locking portions 84 are in contact with the two flat surfaces 103, respectively. Therefore, the housing 2 of the ultrasonic sensor 1 is in a state where movement in the z direction is restricted by the four flat surfaces 821 and the two locking portions 84 in the support portion 820 of the bezel 8. Accordingly, the ultrasonic sensor 1 is attached to the bezel 8.
  • each of the four support portions 85 of the bezel 8 includes a part (tip portion) of the elastic member 5 of the ultrasonic sensor 1 and the transducer 3 in the cylindrical body 81. Is placed.
  • the ultrasonic sensor 1 contacts the side surface 210 of the first cylinder 21 of the housing 2. That is, the four support portions 85 of the bezel 8 support the first cylinder 21 of the housing 2 in the ultrasonic sensor 1. Therefore, the housing 2 is in a state where movement in the z direction and movement in the y direction are restricted by the four support portions 85.
  • the dimension L2 from the front end of the support portion 820 to the surface of the end portion 812 of the cylindrical body 81 in the bezel 8 is from the flat surface 203 of the second claw portion 20 in the ultrasonic sensor 1. It is smaller than the dimension L1 to the surface of the part 51 on the x direction side. Therefore, a gap is formed between the second claw portion 20 of the ultrasonic sensor 1 and the support portion 820 of the bezel 8 with the ultrasonic sensor 1 attached to the bezel 8. For this reason, the support part 820 in the bezel 8 is less likely to interfere with the second claw part 20 in the ultrasonic sensor 1.
  • the holding member 9 is attached to the second bumper 120 (see FIG. 9) of the vehicle, for example.
  • the second bumper 120 is provided with a hole 123 that penetrates the second bumper 120 in the x direction.
  • the diameter of the hole 123 is substantially equal to the outer diameter of the side surface 52 of the elastic member 5.
  • the holding member 9 has two second arm portions 94.
  • the two second arm portions 94 are attached to the second surface 122 (back surface) (see FIG. 9) of the second bumper 120 and protrude from the second surface 122 of the second bumper 120 in the thickness direction of the second bumper 120. .
  • the ultrasonic sensor 1 is attached to the holding member 9 by being sandwiched between the two second arm portions 94.
  • the holding member 9 will be described.
  • the holding member 9 has a base 91, four support portions 92, and two second arm portions 94.
  • the holding member 9 is made of a resin material.
  • the base 91 is formed in a flat plate shape whose thickness direction is the x direction, for example.
  • a double-sided tape is attached to the first surface 901 of the base 91 on the x direction side.
  • the base 91 is attached to the second surface 122 of the second bumper 120 with a double-sided tape.
  • the two second arm portions 94 in the holding member 9 are respectively caught by the two second claw portions 20 in the ultrasonic sensor 1.
  • the four support portions 92 are in contact with the side surface 221 of the second cylinder 22 in the ultrasonic sensor 1.
  • the ultrasonic sensor 1 is attached to the holding member 9 by the two second claw portions 20 and the four support portions 92.
  • the vibration surface 31 of the transducer 3 in the ultrasonic sensor 1 is exposed from the first surface 121 (surface) of the second bumper 120 through the hole 123 of the second bumper 120.
  • two second arm portions 94, four support portions 92, four ribs 95, and a circular recess 912 are provided on the second surface 902 of the base 91 opposite to the x direction.
  • the four ribs 95 are in contact with the four overhanging portions 212 of the first cylinder 21 in the ultrasonic sensor 1.
  • the recess 912 is formed so as to be recessed from the second surface 902 side of the base 91.
  • the inner diameter of the recess 912 is larger than the outer diameter of the first cylinder 21 when viewed from the x direction.
  • the concave portion 912 is formed by reducing the thickness of the base 91.
  • the recess 912 is provided with a hole 911 that is coaxial with the recess 912 and has a diameter smaller than the inner diameter of the recess 912.
  • the hole 911 passes through the base 91 in the x direction. Therefore, a flange 913 that is thinner than the thickness of the base 91 is formed in the recess 912.
  • the surface of the flange portion 913 opposite to the x direction is a plane that intersects the x axis.
  • the diameter of the hole 911 of the flange 913 is larger than the outer diameter of the side surface 52 of the elastic member 5 in the ultrasonic sensor 1.
  • two reinforcing portions 903 projecting from the second surface 902 of the holding member 9 in the direction opposite to the x direction are provided.
  • the dimension (thickness) in the x direction of the reinforcing portion 903 is larger than the thickness of the base 91.
  • the two reinforcing portions 903 are respectively provided on both sides around the recess 912 so as to be aligned in the z direction.
  • Two support portions 92, two ribs 95, and one second arm portion 94 are provided on each surface of the two reinforcing portions 903.
  • the reinforcing portion 903 makes the portion around the hole 911 in the base 91 difficult to bend.
  • the four support portions 92 protrude from the second surface 902 of the holding member 9 in the direction opposite to the x direction.
  • the four support portions 92 are arranged around the recess 912.
  • Two of the four support portions 92 are arranged around the recess 912 on the z direction side of the axis of the recess 912 and aligned in the y direction.
  • the other two support portions 92 out of the four support portions 92 are arranged around the recess 912 opposite to the z direction from the axis of the recess 912 and aligned in the y direction.
  • the support portion 92 is provided with a curved surface 921, a groove 922, a rib 95, and a rib 904.
  • the rib 95 is provided between the support portion 92 and the reinforcement portion 903.
  • the rib 95 is formed integrally with the concave portion 912 and the support portion 92.
  • the rib 95 has a curved surface 952 and a flat surface 951.
  • the curved surface 952 is a curved surface along the surface of the protruding portion 212 in the ultrasonic sensor 1, and is the same curved surface that is continuous with the inner surface of the recess 912.
  • the plane 951 is a plane that intersects the x-axis.
  • the flat surface 951 is formed at a portion in contact with the support portion 92 in the rib 95.
  • the rib 904 protrudes from the surface intersecting the z axis of the support portion 92 in a direction away from the axis of the hole 911 along the z direction.
  • the rib 904 is formed integrally with the support portion 92 and the reinforcement portion 903. The rib 904 limits the amount of bending of the support portion 92 when the support portion 92 is bent in a direction away from the axis of the hole 911.
  • the groove 922 is provided in a portion of the support portion 92 that is close to the axis of the recess 912 in the surface opposite to the axis of the recess 912.
  • the groove 922 is provided to reduce the dimension in the y direction and the dimension in the z direction of the support portion 92 in the support portion 92.
  • the groove 922 is provided so as to reach from the substantially center of the support portion 92 in the x direction to the tip of the support portion 92. More specifically, the groove 922 has a plane 924 and a plane 923.
  • the plane 924 is a plane that intersects the x-axis.
  • the plane 923 is a plane that intersects the z-axis.
  • the curved surface 921 is formed on the surface of the support portion 92 opposite to the surface on which the groove 922 is provided.
  • the curved surface 921 is a curved surface along the side surface 221 of the second cylindrical body 22.
  • the second arm portion 94 is provided between two support portions 92 arranged in the y direction.
  • the second arm portion 94 is formed in a rectangular flat plate shape.
  • the second arm portion 94 is disposed so that the thickness direction is the z direction and protrudes from the reinforcing portion 903 in the direction opposite to the x direction.
  • the dimension of the second arm portion 94 in the y direction is larger than the interval between the two second claws 20 arranged in the y direction in the ultrasonic sensor 1.
  • the second arm portion 94 is provided with a hole 93 that penetrates the second arm portion 94 in the z direction.
  • the hole 93 is formed in a rectangular shape when viewed from the z direction.
  • the locking surface 931 near the tip of the second arm portion 94 is a surface that intersects the x-axis.
  • the dimension of the hole 93 in the y direction (the dimension of the locking surface 931 in the y direction) is larger than the dimension of the second claw portion 20 in the y direction.
  • the dimension in the x direction of the hole 93 is larger than the dimension in the x direction of the second claw portion 20 in the ultrasonic sensor 1.
  • the dimension from the locking surface 931 of the second arm portion 94 to the surface on the opposite side to the x direction of the flange portion 913 is from the surface in the x direction of the flange portion 51 of the elastic member 5 to the second claw portion 20 in the ultrasonic sensor 1. Is substantially equal to the dimension up to the locking surface 201.
  • the plane 941 on the side close to the axis of the hole 911 in the second arm portion 94 is a plane that intersects the z-axis.
  • the dimension from the axis of the hole 911 to the flat surface 941 of the second arm portion 94 is larger than the radius of the concave portion 912 in the reinforcing portion 903. More specifically, the dimension from the axis of the hole 911 of the base 91 to the plane 941 is determined from the axis of the first cylinder 21 of the housing 2 in the ultrasonic sensor 1 to the plane 104 of the first claw part 10 (first claw part 10 Larger than the dimension up to the tip in the z direction).
  • a tapered surface 942 is formed between the flat surface 941 of the second arm portion 94 and the reinforcing portion 903.
  • the tapered surface 942 is formed so that the thickness of the second arm portion 94 becomes thicker as it approaches the reinforcing portion 903.
  • the tapered surface 942 is formed so as not to contact the first claw portion 10 in a state where the ultrasonic sensor 1 is held by the holding member 9 (see FIG. 9).
  • the tapered surface 942 is formed, for example, so as not to overlap the flat surface 104 of the first claw portion 10 in the z direction in a state where the ultrasonic sensor 1 is held by the holding member 9.
  • Tapered surfaces 943 are formed on both sides of the hole 93 in the second arm portion 94 in the y direction.
  • the two tapered surfaces 943 are inclined surfaces between the flat surface 941 and both side surfaces of the second arm portion 94 in the y direction.
  • the tapered surface 943 is formed so that the thickness of the second arm portion 94 decreases as the distance from the hole 93 increases.
  • Each of the two tapered surfaces 943 is a plane parallel to the two tapered surfaces 404 of the guide portion 4 in the ultrasonic sensor 1.
  • the structure in which the ultrasonic sensor 1 is attached to the holding member 9 will be described.
  • the holding member 9 is attached to the second bumper 120 (see FIG. 9), but the second bumper 120 is not shown in FIGS.
  • the operator brings the ultrasonic sensor 1 close to the holding member 9 in a state where the axis of the transducer 3 of the ultrasonic sensor 1 and the axis of the recess 912 of the holding member 9 are aligned.
  • the operator brings the ultrasonic sensor 1 close to the holding member 9 until the flange 3 of the transducer 3 and the elastic member 5 is disposed in the recess 912.
  • the second claw portion 20 of the ultrasonic sensor 1 is pressed in the x direction in a state where the second arm portion 94 of the holding member 9 is in contact with the tapered surface 202 of the second claw portion 20 of the ultrasonic sensor 1. 9 bend in a direction away from each other.
  • both ends in the y direction of the second arm portion 94 of the holding member 9 are less likely to contact (interfere) with the guide portion 4 of the ultrasonic sensor 1.
  • the dimension between the planes 941 of the two second arm portions 94 in the holding member 9 is larger than the dimension between the planes 104 of the two first claw portions 10 of the ultrasonic sensors 1 arranged in the z direction. . Therefore, in the state where each of the two second claws 20 in the ultrasonic sensor 1 is disposed in the hole 93 in the holding member 9, the two first claws 10 and the second arms 94 arranged in the y direction are arranged. There is a gap between them. Therefore, the four first claw portions 10 in the ultrasonic sensor 1 are unlikely to contact (interfere) with the two second arm portions 94 in the holding member 9.
  • each of the two second claw portions 20 in the ultrasonic sensor 1 is disposed in the hole 93 in the holding member 9, the four guide portions 4 are respectively in the grooves 922 of the four support portions 92 in the holding member 9. Placed in.
  • the overhanging portion 402 of the guide portion 4 in the ultrasonic sensor 1 is in contact with the flat surface 923 and the flat surface 924 of the groove 922 of the second arm portion 94.
  • the protruding portion 402 of the guide portion 4 in the ultrasonic sensor 1 is in contact with the flat surface 924, the movement of the housing 2 of the ultrasonic sensor 1 in the x direction is suppressed.
  • the four support portions 92 of the second arm portion 94 can come into contact with a portion close to the bottom plate 64 on the side surface 221 of the second cylindrical body 22 in the ultrasonic sensor 1.
  • the housing 2 in the ultrasonic sensor 1 is supported by the support portions 92 of the four holding members 9. This makes it difficult to cause a position shift.
  • the flange 913 of the recess 912 in the holding member 9 is the flange of the elastic member 5 of the ultrasonic sensor 1.
  • the flange portion 51 is elastically deformed by pressing the portion 51 in the direction opposite to the x direction. Therefore, the housing 2 of the ultrasonic sensor 1 is in a state where movement in the x direction is restricted by the second arm portion 94 of the holding member 9, the flat surface 924 of the groove 922, and the flange portion 913.
  • Each of the curved surfaces 921 of the four support portions 92 in the holding member 9 is in a state where the two second claw portions 20 in the ultrasonic sensor 1 are disposed in the holes 93 in the holding member 9. It contacts the side surface 221 of the cylindrical body 22. Therefore, the housing 2 in the ultrasonic sensor 1 is in a state in which the movement in the z direction and the movement in the y direction are restricted by the recess 912 in the holding member 9, the four ribs 95, and the four support portions 92. . Therefore, the ultrasonic sensor 1 is attached to the holding member 9 in a state in which movement with respect to the holding member 9 is restricted.
  • the ultrasonic sensor 1 includes the housing 2, the first claw portion 10, the second claw portion 20, and the transducer 3.
  • claw part 10 can be hooked on the 1st arm part 82 of the bezel 8 (1st attachment member).
  • the bezel 8 is attached to the first surface 111 (front surface) of the first bumper 110.
  • claw part 20 can be hooked on the 2nd arm part 94 of the holding member 9 (2nd attachment member).
  • the holding member 9 is attached to the second surface 122 (back surface) of the second bumper 120.
  • the first claw portion 10 is formed on the second surface 112 (back surface) from the first surface 111 through the hole 113 in the bezel 8 (first mounting member) attached to the first surface 111 (front surface) of the first bumper 110. It is possible to hook on the protruding first arm portion 82.
  • claw part 20 can be hooked on the 2nd arm part 94 of the holding member 9 (2nd attachment member) attached to the 2nd surface 122 (back surface) of the 2nd bumper 120.
  • the ultrasonic sensor 1 includes the first claw portion 10 and the second claw portion 20, both the bezel 8 that penetrates the first bumper 110 and the holding member 9 that does not penetrate the second bumper 120. It can be attached.
  • claw part 20 are separated.
  • the second claw portion 20 is preferably provided such that a gap is formed between the second claw portion 20 and the first arm portion 82 in a state where the first claw portion 10 is caught by the first arm portion 82. Accordingly, the second claw portion 20 is unlikely to contact (interfere) with the first arm portion 82 in a state where the ultrasonic sensor 1 is attached to the bezel 8 (first attachment member).
  • claw part 20 are separated.
  • the first claw portion 10 is preferably provided such that a gap is formed between the first claw portion 10 and the second arm portion 94 in a state where the second claw portion 20 is caught by the second arm portion 94. This makes it difficult for the first claw portion 10 to contact (interfere) with the second arm portion 94 in a state where the ultrasonic sensor 1 is attached to the holding member 9 (second attachment member).
  • the cylindrical portion 200 has an opening 231 that exposes the ultrasonic wave transmission / reception surface (vibration surface 31) of the transducer 3, and the first claw portion 10 is more open than the second claw portion 20. It is preferable to be provided at a position close to H.231. As a result, the ultrasonic sensor 1 can be attached by hooking the first claw portion 10 on the first arm portion 82 having a protruding size smaller than that of the second arm portion 94.
  • the cylindrical portion 200 includes a first cylindrical body 21 and a second cylindrical body 22 in which the control unit 7 is accommodated, and the second cylindrical body 22 has a larger diameter than the outer diameter of the first cylindrical body 21. It is preferable that the outer diameter is large. Thereby, the volume of the internal space of the cylinder part 200 can be increased. For example, even when the size of the control unit 7 is larger than that of the transducer 3, the control unit 7 can be accommodated in the cylindrical unit 200. Therefore, the ultrasonic sensor 1 including the transducer 3 smaller than the size of the control unit 7 viewed from the x direction can be realized. Further, by reducing the size of the transducer 3, the vibration surface 31 of the transducer 3 exposed from the first bumper 110 and the second bumper 120 can be reduced.
  • the ultrasonic sensor device 301 includes the ultrasonic sensor 1 and the bezel 8 (first mounting member), as shown in FIG.
  • the bezel 8 (first mounting member) has a first arm portion 82 that is attached to the first surface 111 (front surface) of the first bumper 110 and projects to the second surface 112 (back surface).
  • the ultrasonic sensor device 302 includes an ultrasonic sensor 1 and a holding member 9 (second mounting member).
  • the holding member 9 (second attachment member) is attached to the second surface 122 (back surface) of the second bumper 120 and has a second arm portion 94 protruding from the second surface 122 (back surface).
  • the ultrasonic sensor 1 can be used for any of the ultrasonic sensor devices 301 and 302.
  • the bezel 8 is attached to the surface of the first bumper 110.
  • the first arm portion 82 of the bezel 8 projects from the front surface of the first bumper 110 to the back surface through the hole 113 of the first bumper 110.
  • the first arm portion 82 is less likely to bend in the direction away from the axis of the hole 113 by contacting the edge of the hole 113 when it is bent in the direction away from the axis of the hole 113. Therefore, it is difficult for the first arm portion 82 to come off the first claw portion 10 from the state where the first claw portion 10 is disposed in the gap 83 of the first arm portion 82.
  • the holding member 9 is attached to the back surface of the second bumper 120.
  • the holding member 9 holds the housing 2 with the rib 95 of the ultrasonic sensor 1 in contact with the first cylinder 21 of the ultrasonic sensor 1 and the second arm portion 94 in contact with the second cylinder 22 of the ultrasonic sensor 1. Hold. Therefore, the length of the second arm portion 94 (the dimension in the x direction from the surface of the flat surface 903 to the tip of the second arm portion 94) is the length (dimension L2) of the first arm portion 82 of the bezel 8 (see FIG. 6).
  • the holding member 9 can suppress the displacement of the housing 2 with respect to the holding member 9.
  • the projecting dimension of the first arm portion 82 of the bezel 8 from the back surface of the first bumper 110 is the dimension from the second surface 802 of the collar 80 to the tip of the first arm portion 82 (the length of the first arm portion 82). )) By the thickness of the first bumper 110.
  • the ultrasonic sensor 1 is attached to the second surface 112 of the first bumper 110. The protruding dimension from the second surface 112 can be reduced.
  • the ultrasonic sensor 1 is attached to the second surface 112 of the first bumper 110, the dimension from the bottom plate 64 of the ultrasonic sensor 1 to the tip of the first arm portion 82 is reduced, so that the first bumper 110 The protruding dimension from the second surface 112 can be reduced.
  • the plane that bisects the thickness of the portion of the second arm 94 where the plane 941 is formed is the virtual plane M1.
  • the virtual plane M1 is a virtual plane that intersects the z axis and is a plane parallel to the plane 941.
  • the two second arm portions 94 are configured so that the interval in the z direction between the two virtual planes M1 is smaller than the interval in the z direction between the planes 204 of the two second claws 20.
  • the reinforcing portion 903 is provided on the surface. Therefore, the plane 204 of the second claw portion 20 in the ultrasonic sensor 1 is disposed at a position farther from the axis of the hole 911 in the holding member 9 than the virtual plane M1.
  • the dimension in the z direction at the portion where the locking surface 201 of the second claw portion 20 in the ultrasonic sensor 1 and the locking surface 931 of the hole 93 in the holding member 9 are in contact with each other is the second arm portion 94 of the ultrasonic sensor 1. It becomes more than half of the thickness of the part in which the plane 941 is formed.
  • the second claw portion 20 of the ultrasonic sensor 1 protrudes in the thickness direction of the plate-like second arm portion 94 provided on the holding member 9 (second mounting member).
  • the projecting dimension of the second claw portion 20 is more than half the thickness of the second arm portion 94 of the holding member 9.
  • the thickness of the portion of the second arm portion 94 where the tapered surface 942 is provided increases as it approaches the reinforcing portion 903 side (plane 902 side).
  • the tapered surface 942 is provided so as to increase the thickness of the second arm portion 94 from the side close to the axis of the hole 911 in the second arm portion 94 (plane 941 side) toward the axis of the hole 911. Therefore, the surface that bisects the thickness of the portion provided with the tapered surface 942 is located closer to the axis of the hole 911 than the virtual plane M1.
  • the plane 204 of the second claw portion 20 in the ultrasonic sensor 1 is located farther from the axis of the hole 911 than the virtual plane M1, the plane that bisects the thickness of the portion where the tapered surface 942 is provided. And farther away from the axis of the hole 911.
  • the two second arm portions 94 of the holding member 9 exert a force that bends in a direction approaching each other. It will be received from the nail part 20. Accordingly, the two second claw portions 20 in the ultrasonic sensor 1 are unlikely to be detached from the two second arm portions 94 in the holding member 9.
  • claw part 20 of the ultrasonic sensor 1 may be provided in the 1st cylinder 21, and the 1st nail
  • claw part 10 may be provided in the 2nd cylinder 22.
  • the first claw portion 10 and the second claw portion 20 of the ultrasonic sensor 1 may be provided in the housing 2 so as to be aligned along the y direction.
  • the dimension from the first claw 10 of the ultrasonic sensor 1 to the opening 231 of the first cylinder 21 is equal to the dimension from the second cylinder 22 to the opening 231 of the first cylinder 21. May be.
  • the number of the first claw part 10, the second claw part 20, and the guide part 4 of the ultrasonic sensor 1 is an example, and the ultrasonic sensor 1 has an appropriate number of first claw parts 10, second claw parts 20, And the guide part 4 may be provided.
  • the guide part 4 of the ultrasonic sensor 1 can be omitted.
  • the arrangement of the first claw part 10 and the second claw part 20 of the ultrasonic sensor 1 is not limited to the arrangement of the present embodiment, and is arranged at an arbitrary position on the side surface of the cylindrical part 200 of the ultrasonic sensor 1. May be.
  • the first bumper 110 and the second bumper 120 may be bumpers having the same shape.
  • the present invention can be used for an ultrasonic sensor and an ultrasonic sensor device including the same.
  • Ultrasonic sensor device 1 Ultrasonic sensor 2 Housing 200 Tube portion 231 Opening portion 3 Transducer 10 First claw portion 20 Second claw portion 8 Bezel (first attachment member) 82 1st arm part 9 Holding member (2nd attachment member) 94 2nd arm part 110 1st bumper 120 2nd bumper 111 1st surface (surface of 1st bumper) 112 Second side (back side of first bumper) 122 2nd surface (back surface of 2nd bumper)

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

L'invention concerne un capteur à ultrasons qui comprend un boîtier, une première section de griffe, une seconde section de griffe et un transducteur. Le boîtier comprend une section cylindrique. La première section de griffe et la seconde section de griffe font saillie sur la surface latérale de la section cylindrique. Le transducteur est logé dans la section cylindrique et envoie/reçoit des ondes ultrasonores. Une collerette est fixée à la surface d'un premier amortisseur ayant un trou sur celui-ci, et la première section de griffe est capable de passer à travers le trou depuis la surface dans ladite collerette et de s'accrocher sur une première section de bras faisant saillie sur la surface arrière. Un élément de retenue est fixé à la surface arrière d'un second amortisseur, et la seconde section de griffe est capable de s'accrocher sur une seconde section de bras faisant saillie sur la surface arrière dans l'élément de retenue dans la direction d'épaisseur du second amortisseur.
PCT/JP2017/000382 2016-03-01 2017-01-10 Capteur à ultrasons et dispositif de capteur à ultrasons le comprenant WO2017149931A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-039221 2016-03-01
JP2016039221A JP2017154592A (ja) 2016-03-01 2016-03-01 超音波センサ及びそれを備える超音波センサ装置

Publications (1)

Publication Number Publication Date
WO2017149931A1 true WO2017149931A1 (fr) 2017-09-08

Family

ID=59743707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/000382 WO2017149931A1 (fr) 2016-03-01 2017-01-10 Capteur à ultrasons et dispositif de capteur à ultrasons le comprenant

Country Status (2)

Country Link
JP (1) JP2017154592A (fr)
WO (1) WO2017149931A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3640090A1 (fr) * 2018-10-16 2020-04-22 AGCO International GmbH Ensemble capteur pour véhicule

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7091935B2 (ja) * 2017-11-27 2022-06-28 株式会社デンソー 超音波センサおよびリテーナ
JP7024662B2 (ja) * 2018-08-24 2022-02-24 株式会社デンソー リテーナ部材
KR102091430B1 (ko) * 2018-10-30 2020-03-23 에코플라스틱 주식회사 센서 홀더
JP2020082986A (ja) * 2018-11-22 2020-06-04 三菱電機株式会社 ベゼル式ソナー

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004264264A (ja) * 2003-03-04 2004-09-24 Matsushita Electric Works Ltd 超音波センサ
JP2006298010A (ja) * 2005-04-15 2006-11-02 Denso Corp 超音波センサの取付け構造
WO2014073108A1 (fr) * 2012-11-12 2014-05-15 三菱電機株式会社 Module détecteur
JP2015113099A (ja) * 2013-12-16 2015-06-22 三菱電機株式会社 超音波センサモジュールの取り付け構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004264264A (ja) * 2003-03-04 2004-09-24 Matsushita Electric Works Ltd 超音波センサ
JP2006298010A (ja) * 2005-04-15 2006-11-02 Denso Corp 超音波センサの取付け構造
WO2014073108A1 (fr) * 2012-11-12 2014-05-15 三菱電機株式会社 Module détecteur
JP2015113099A (ja) * 2013-12-16 2015-06-22 三菱電機株式会社 超音波センサモジュールの取り付け構造

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3640090A1 (fr) * 2018-10-16 2020-04-22 AGCO International GmbH Ensemble capteur pour véhicule

Also Published As

Publication number Publication date
JP2017154592A (ja) 2017-09-07

Similar Documents

Publication Publication Date Title
WO2017149931A1 (fr) Capteur à ultrasons et dispositif de capteur à ultrasons le comprenant
WO2012077793A1 (fr) Structure de fixation d'un transducteur à ultrasons
JP6160952B2 (ja) 超音波装置
JP6245496B2 (ja) 超音波センサ装置及びその取付方法
US7626888B2 (en) Ultrasound sensor
JP4678497B2 (ja) 超音波センサの取付け方法
KR101553869B1 (ko) 초음파 센서 조립체
JP2007159259A (ja) 配線保持ユニット
US20170038470A1 (en) Fastening member, and obstacle detecting device employing fastening member
CN110431445B (zh) 超声波传感器
US20190101420A1 (en) Vibration detection apparatus
WO2013161221A1 (fr) Appareil de capteur ultrasonore de véhicule et procédé d'assemblage d'appareil de capteur ultrasonore de véhicule
JP5984081B2 (ja) 超音波センサ
JP5262505B2 (ja) センサ装置の取り付け構造
US10199960B2 (en) Vibration wave motor
JP7167567B2 (ja) 超音波センサ
JP2014098579A (ja) 超音波センサ
JP2013137261A (ja) 超音波センサ
WO2014073108A1 (fr) Module détecteur
JP7334667B2 (ja) 超音波センサおよびセンサ取付具
CN113728658A (zh) 超声波传感器
JP7294223B2 (ja) 超音波センサおよび振動吸収体
JP7243674B2 (ja) 車載構造
WO2022219980A1 (fr) Capteur à ultrasons
JP2010025674A (ja) 超音波センサ

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17759403

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17759403

Country of ref document: EP

Kind code of ref document: A1