To provide an ultrasonic wave oscillator 10 which achieves expansion of a detection range while inhibiting increase of costs.SOLUTION: An ultrasonic wave oscillator 10 is used to detect unauthorized intrusion to a vehicle cabin and includes: a vibrator 12 which can radiate ultrasonic waves; a housing 11 which houses and holds the vibrator 12 and opens in an ultrasonic wave radiation direction of the vibrator 12; and a cover member 13 which closes the opening of the housing 11. The cover member 13 includes: throat parts 132 which are open along the ultrasonic wave radiation direction so as to allow the interior and the exterior of the housing 11 to communicate with each other; and an oval groove part 133 which is provided in parallel with the throat parts 132 and extends in the ultrasonic wave radiation direction.SELECTED DRAWING: Figure 4
【課題】コスト増加を抑えて、検知範囲の拡大を図れる超音波発振器10を提供することを目的とする。【解決手段】車室内への不正な侵入を検知するための超音波発振器10であって、超音波を放射可能な振動子12と、振動子12を収容保持するとともに、振動子12の超音波放射方向が開口した筐体11と、筐体11の開口を閉塞するカバー部材13とを備え、カバー部材13は、超音波放射方向に沿って、筐体11の内外を連通させるように開口されたスロート部132と、スロート部132に並設され、超音波放射方向へ向けて延びる楕円溝部133とを備えたことを特徴とする。【選択図】図4
VEHICULAR INTRUSION DETECTION DEVICE
車両用侵入検知装置
2021-09-16
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |