Jogged type ultrasonic transducer device and assembling method thereof
A sensor device, ultrasonic technology, applied in measurement devices, re-radiation of sound waves, instruments, etc., to achieve the effect of improving process efficiency and process yield, and avoiding peeling problems
Inactive Publication Date: 2014-05-21
TUNG THIH ELECTRONICS
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Problems solved by technology
[0011] The purpose of the present invention is to provide a kind of embedded ultrasonic sensor device that can solve the problem of peeling off the fixing ring, and can complete the assembly process without performing the filling step and curing step of the encapsulant
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[0044] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:
[0045] refer to image 3 , Figure 4 and Figure 5 , is a preferred embodiment of the embedded ultrasonic sensor device 1 of the present invention. The embedded ultrasonic sensor device 1 can be applied to a vehicle's reversing radar or anti-collision radar to improve driving safety, but its application field is not limited to the above content.
[0046]Specifically, the embedded ultrasonic sensor device 1 includes a casing 2 , and a sensor 3 , a fixing ring 4 , a circuit board 5 and a sealing cover 6 mounted on the casing 2 .
[0047] refer to image 3 , Figure 5 , Figure 7 and Figure 8 , The shell 2 includes a hollow shell 21 , a first shock absorbing ring 22 , a first external pin 23 , a second external pin 24 and a third external pin 25 .
[0048] The hollow shell 21 is in the shape of a cylinder, and a connecting pipe portion 211 communicating wi...
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A jogged type ultrasonic transducer device comprises an outer casing, a sensor, a fixing ring, a circuit board and a sealing cover; the outer casing comprises a hollow casing and at least one externally connected foot; the hollow casing is provided with a first opening and a second opening which are corresponding; the sensor comprises a hollow base and a piezoelectric plate and a shock absorption part which are arranged inside the hollow base in a stacking mode; the hollow base is arranged inside the hollow casing and seals a second opening; the fixing ring is arranged at a position which is corresponding to the transducer; the fixing ring and the hollow casing are mutually matched to clamp the sensor; the fixing ring comprises a ring body and at least one internally connected foot; the ring body is provided with at least one rib column which extends towards the first opening in a protruding mode; the internally connected foot and the piezoelectric plate of the transducer are in electrical connection; the circuit board, the externally connected foot and the internally connected foot are in electrical connection; the sealing cover seals the first opening; the inner wall surface of the sealing cover is abut against the rib column off the fixing ring.
Description
technical field [0001] The invention relates to an ultrasonic sensing device, in particular to an ultrasonic sensing device for a range-finding radar for a vehicle. Background technique [0002] At present, all kinds of vehicles are usually equipped with ranging radars (such as anti-collision radars or reversing radars) to detect obstacles or incoming vehicles for driving safety, so as to assist drivers to pay attention to environmental changes around the vehicle. Among them, ultrasonic radar is one of the common automotive radars. [0003] refer to figure 1 and figure 2 , is an existing vehicle ultrasonic sensor device 9 . The ultrasonic sensor device 9 includes a housing 91 , a sensor 92 , a fixing ring 93 and a circuit board 94 . [0004] The housing 91 includes a housing 911 and a plurality of external pins 912 electrically connected to the sensor 92 and the circuit board 94 . The inner wall of the housing 911 forms a plurality of limiting sliding slots 913 for asse...
Claims
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IPC IPC(8): G01S15/02
CPCG01S15/931G01S7/521G01S2015/932
Inventor 蔡子勤李士丰张钧华
Owner TUNG THIH ELECTRONICS