Ultrasonic transducer device and method of attaching the same

1. An ultrasonic transducer device, comprising:

a body unit including:

a housing including a space which is in a front surface of the housing and is for receiving an ultrasonic transducer, and

at least one clip part provided to a side surface of the housing; and

a fixing member including:

a fixing plate including a fixing surface to be attached to a rear surface of an exterior panel of a vehicle, and a through hole to communicate to an opening in the exterior panel, and

at least one interlocked part removably connected to the at least one clip part so that the space faces the through hole,

the at least one clip part including:

an interlocking part movable between a first position in which the interlocking part is physically connected to the at least one interlocked part and a second position in which the interlocking part is not physically connected to the at least one interlocked part, and

a spring part keeping the interlocking part in the first position,

the fixing plate having a shape of a rectangular plate,

the fixing plate including a thick part at a center thereof in a longitudinal direction of the fixing plate,

the thick part being greater in thickness than opposite sides of the fixing plate in the longitudinal direction, and

the through hole being formed in the thick part,

wherein the body unit includes a plurality of clip parts; and

the fixing member includes a plurality of interlocked parts individually corresponding to the plurality of clip parts,

the plurality of interlocked parts are columnar parts which protrude from a face on an opposite side of the fixing plate from the fixing surface, and protrude from opposite ends of the thick part in a width direction of the fixing plate.

2. The ultrasonic transducer device according to claim 1 , wherein:

the body unit includes a plurality of slots, each of which is between a corresponding one of the interlocking parts of the plurality of clip parts and the housing and is for receiving a corresponding one of the plurality of interlocked parts; and

each of the interlocking parts is physically connected to a corresponding one of the plurality of interlocked parts when the corresponding one of the plurality of interlocked parts is inserted into a corresponding one of the plurality of slots.

3. The ultrasonic transducer device according to claim 1 , wherein the spring part connects an end of the interlocking part far from the fixing plate to an end of the housing close to the fixing plate.

4. The ultrasonic transducer device according to claim 1 , wherein:

ones of the interlocking parts and the plurality of interlocked parts include a protrusion; and

the others of the interlocking parts and the plurality of interlocked parts include a recess to receive the protrusion.

5. The ultrasonic transducer device according to claim 1 , wherein:

the plurality of clip parts include a recess-type clip part and a protrusion-type clip part that are on opposite sides of the housing;

the plurality of interlocked parts include a protrusion-type interlocked part and a recess-type interlocked part respectively corresponding to the recess-type clip part and the protrusion-type clip part;

the protrusion-type interlocked part includes a protrusion;

the interlocking part of the recess-type clip part includes a recess to receive the protrusion of the protrusion-type interlocked part;

the interlocking part of the protrusion-type clip part includes a protrusion; and

the recess-type interlocked part includes a recess to receive the protrusion of the protrusion-type clip part.

6. The ultrasonic transducer device according to claim 1 , wherein the plurality of interlocked parts are opposite each other while the housing is between the plurality of interlocked parts.

7. The ultrasonic transducer device according to of claim 1 , wherein:

the housing includes a part positioned inside the through hole; and

the fixing member holds the body unit so that the part of the housing is not in contact with an internal side surface of the through hole.

8. The ultrasonic transducer device according to claim 1 , wherein each of the plurality of interlocked parts include a stopper to be in contact with the housing to prevent a displacement of the housing.

9. The ultrasonic transducer device according to claim 1 , wherein at least one groove is formed in a surface of the fixing plate.

10. A method of attaching an ultrasonic transducer device, comprising:

preparing the ultrasonic transducer device according to claim 1 ;

attaching the fixing member of the ultrasonic transducer device to a rear surface of an external panel of a vehicle in such a manner that the fixing surface is in surface contact with the rear surface;

aligning the through hole of the fixing member with the space, and each of the plurality of interlocked parts with a corresponding one of the plurality of clip parts; and

moving the body unit toward the fixing member to connect each of the plurality of interlocked parts to the corresponding one of the plurality of clip parts.