CN219266171U - Ultrasonic sensing device - Google Patents
Ultrasonic sensing device Download PDFInfo
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- CN219266171U CN219266171U CN202320741874.7U CN202320741874U CN219266171U CN 219266171 U CN219266171 U CN 219266171U CN 202320741874 U CN202320741874 U CN 202320741874U CN 219266171 U CN219266171 U CN 219266171U
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- wire
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- side plate
- ceramic component
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Abstract
The utility model relates to an ultrasonic sensing device, which comprises a shell, an upper cover, a wire connecting side plate, a piezoelectric ceramic component connecting side plate and a wire component, wherein the upper cover is arranged on the shell; the wire assembly includes a connection member and a wire; the piezoelectric ceramic component comprises a mounting base, a middle matching layer, a ceramic plate and an edge matching layer. The utility model has the advantages that: (1) The wire passes through the wire connecting side plate through the connecting part to be connected with the circuit board, the connecting part strengthens the strength of the joint of the wire and the wire connecting side plate, greatly reduces the possibility of breakage and looseness of the wire at the joint, and enhances the testing stability of the sensing device; (2) The connecting part is clamped in the wire connecting groove through the upper cover, so that the connecting part is convenient to assemble and disassemble in the wire connecting groove, and the overhaul after the circuit board in the shell is separated from the wire is facilitated; (3) Through the combination of the middle matching layer and the edge matching layer, the sound wave energy is ensured to be sent to the right front, the attenuation of the sound wave in the transmission process is reduced, and the testing accuracy is improved.
Description
Technical Field
The present utility model relates to an ultrasonic sensor device.
Background
The ultrasonic sensor can be used for measuring the distance of an object and detecting the material of the object. In the actual measurement process, the circuit board and the lead in the sensor shell are easy to loosen due to the influence of the use environment, so that the test result is influenced. And in the transmission process of the sound wave, part of the sound wave energy is transferred from the side edge, so that the sound wave energy is attenuated, and the error of a test result is increased.
Therefore, further improvements in the structure of the ultrasonic sensor are required to solve the above-described problems.
Disclosure of Invention
The utility model aims to provide an ultrasonic sensing device which can improve test stability and test accuracy.
In order to achieve the above object, an ultrasonic sensing device is provided, which comprises a housing, an upper cover, a wire connecting side plate, a piezoelectric ceramic component connecting side plate, and a wire component; the piezoelectric ceramic component is also included;
the wire assembly comprises a connecting part and a wire, and the connecting part is provided with a clamping groove;
the wire connecting side plate is provided with a wire connecting groove, and an opening of the wire connecting groove is positioned at the top of the wire connecting side plate; the connecting part is connected to the bottom of the wire connecting groove through the clamping groove; one side of the upper cover is extended downwards to form a buckle, and the buckle is clamped into the clamping groove through the wire connecting groove;
the piezoelectric ceramic component comprises a mounting base, a middle matching layer, a ceramic plate and an edge matching layer; the middle matching layer is positioned in the mounting base, and the ceramic sheet is sleeved on the outer side of the middle matching layer; the piezoelectric ceramic component connecting side plate is provided with a piezoelectric ceramic component connecting hole, a mounting frame is fixed in the piezoelectric ceramic component connecting hole, the mounting base is connected with the mounting frame, and the middle matching layer and the ceramic sheet are positioned in the piezoelectric ceramic component connecting hole; the piezoelectric ceramic component connecting hole with form the edge matching layer installation passageway between the mounting bracket, the edge matching layer is annular structure, the edge matching layer passes through the edge matching layer installation passageway cover is in the outer wall of mounting bracket.
Preferably, the connecting member and the wire are of an integrally formed structure.
As a further improvement of the utility model, the top of the shell is provided with a mounting table, and four sides of the upper cover are positioned on the mounting table.
As a further improvement of the utility model, the outer wall of the shell is provided with an indicator lamp.
According to the ultrasonic sensing device, the wires are connected to the wire connecting side plates through the connecting parts, and the connecting parts are firmly clamped in the wire connecting grooves through the buckles of the upper covers, so that the wires are convenient to disassemble and assemble during maintenance, the wire connecting strength is improved, and the risk of wire breakage is reduced; the matching layer is divided into a middle matching layer and an edge matching layer, and the middle matching layer is used for matching acoustic impedances of ceramic and air, so that energy attenuation in the process of transmitting ceramic sound waves to the air is reduced. The annular edge matching layer is sleeved on the outer ring of the middle matching layer, and the edge matching layer prevents ultrasonic waves from radiating to the side face through the shell, so that the ultrasonic energy is ensured to be sent to the right front.
Compared with the prior art, the ultrasonic sensing device has the advantages that:
(1) The wire passes through the wire connecting side plate through the connecting part to be connected with the circuit board, the connecting part strengthens the strength of the joint of the wire and the wire connecting side plate, greatly reduces the possibility of breakage and looseness of the wire at the joint, and enhances the test stability of the sensing device in the running process;
(2) The connecting part is clamped in the wire connecting groove through the upper cover, so that the connecting part is convenient to assemble and disassemble in the wire connecting groove, and the overhaul after the circuit board in the shell is separated from the wire is facilitated;
(3) Through the combination of the middle matching layer and the edge matching layer, the sound wave energy is ensured to be sent to the right front, the energy attenuation of the sound wave in the transmission process is reduced, and the test accuracy is improved.
Drawings
FIG. 1 is a schematic diagram of an ultrasonic sensor;
FIG. 2 is a schematic view of the position structure of the connecting member;
FIG. 3 is a schematic diagram of a wire assembly;
FIG. 4 is a schematic view of the structure of the upper cover;
FIG. 5 is a schematic view of a piezoelectric ceramic component position;
FIG. 6 is a schematic diagram of a piezoelectric ceramic assembly;
FIG. 7 is a schematic diagram of an edge matching layer structure;
fig. 8 is a schematic diagram of the structure of the indicator lamp.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples.
As shown in fig. 1, an ultrasonic sensing device of the present utility model includes a housing 1, an upper cover 2, a wire connecting side plate 3, a piezoelectric ceramic component connecting side plate 4, and a wire component 5;
as shown in fig. 3, the wire assembly 5 includes a connection member 51 and a wire 52, the connection member 51 being provided with a card slot 511; preferably, the connection part 51 and the wire 52 are integrally formed, and the integral structure improves the connection strength of the wire assembly 5 and reduces the possibility of breakage of the connection part of the wire 52 and the connection part 51 to some extent, compared to the separate structure of the connection part 51 and the wire 52.
As shown in fig. 2, the wire connection side plate 3 is provided with a wire connection groove 31, and an opening of the wire connection groove 31 is positioned at the top of the wire connection side plate 3; the connection part 51 is connected to the bottom of the wire connection groove 31 through the clamping groove 511; as shown in fig. 4, a clip 21 extends downward from one side of the upper cover 2, and the clip 21 is snapped into the clip groove 511 through the wire connection groove 31; the wire 52 is connected with the wire connection side plate 3 through the connection part 51, one end of the wire 52 is located outside the shell 1, the other end is located inside the shell 1, and is used for connecting a circuit board, the connection part 51 clamps the buckle 21 and the wire connection groove 31 up and down respectively through the clamping groove 511, and the wire 52 connected with the connection part cannot fall off from the wire connection side plate 3.
The top of the shell 1 is provided with a mounting table 11, and four sides of the upper cover 2 are positioned on the mounting table 11. The mounting table 11 enables the upper cover 2 to be mounted on the top of the shell 1 more smoothly, and prevents the buckle 21 from affecting the buckling effect of the connecting part 51 due to loosening of the upper cover 2.
In this embodiment, the driving circuit transmits an ac driving signal with a frequency of 300K to the ceramic plate, and the ceramic plate buckling vibration sound wave propagates to the front through the matching layer, and the transmission signal is stopped after the propagation time lasts for about 100 us. When the ultrasonic waves hit the obstacle in front, the ultrasonic waves are reflected back and then transmitted to the ceramic plate through the matching layer, and the ceramic plate generates a piezoelectric signal to the main circuit. The main circuit judges the distance or roughness of the obstacle through the returned electric signal time and signal intensity so as to realize the functions of distance test and material identification.
As shown in fig. 6, the piezoelectric ceramic component 6 includes a mounting base 61, an intermediate matching layer 62, a ceramic sheet 63, and an edge matching layer 64; the middle matching layer 62 is positioned in the mounting base 61, and the ceramic plate 63 is sleeved outside the middle matching layer 62; as shown in fig. 5, the piezoelectric ceramic component connecting side plate 4 is provided with a piezoelectric ceramic component connecting hole 41, a mounting frame 42 is fixed in the piezoelectric ceramic component connecting hole 41, a mounting base 61 is connected with the mounting frame 42, and an intermediate matching layer 62 and a ceramic sheet 63 are positioned in the piezoelectric ceramic component connecting hole 41; as shown in fig. 7, an edge matching layer mounting channel 43 is formed between the piezoelectric ceramic component connection hole 41 and the mounting frame 42, the edge matching layer 64 is in an annular structure, and the edge matching layer 64 is sleeved on the outer wall of the mounting frame 42 through the edge matching layer mounting channel 43.
As shown in fig. 8, the outer wall of the housing 1 is provided with an indicator lamp 7. The indicator lamp 7 is connected with the circuit board, and whether the ceramic chip receives a round-trip signal is visually reflected through the flickering of the indicator lamp 7.
According to the ultrasonic sensing device, the wire 52 is connected to the wire connecting side plate 3 through the connecting part 51, and the connecting part 51 is firmly clamped in the wire connecting groove 31 through the buckle 21 of the upper cover 2, so that the assembly and disassembly during maintenance are convenient, the wire connecting strength is improved, and the risk of wire breakage is reduced; the matching layers are divided into a middle matching layer 62 and an edge matching layer 64, and the middle matching layer 62 is used for matching acoustic impedances of ceramics and air, so that energy attenuation in the process of transmitting the ceramic acoustic waves to the air is reduced. The annular edge matching layer 64 is sleeved on the outer ring of the middle matching layer 62, and the edge matching layer 64 prevents ultrasonic waves from radiating to the side through the shell 1, so that the ultrasonic energy is transmitted to the right front.
While the preferred embodiments of the present utility model have been illustrated and described, the present utility model is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.
Claims (4)
1. An ultrasonic sensing device comprises a shell, an upper cover, a wire connecting side plate, a piezoelectric ceramic component connecting side plate and a wire component; the piezoelectric ceramic component is characterized by also comprising a piezoelectric ceramic component;
the wire assembly comprises a connecting part and a wire, and the connecting part is provided with a clamping groove;
the wire connecting side plate is provided with a wire connecting groove, and an opening of the wire connecting groove is positioned at the top of the wire connecting side plate; the connecting part is connected to the bottom of the wire connecting groove through the clamping groove; one side of the upper cover is extended downwards to form a buckle, and the buckle is clamped into the clamping groove through the wire connecting groove;
the piezoelectric ceramic component comprises a mounting base, a middle matching layer, a ceramic plate and an edge matching layer; the middle matching layer is positioned in the mounting base, and the ceramic sheet is sleeved on the outer side of the middle matching layer; the piezoelectric ceramic component connecting side plate is provided with a piezoelectric ceramic component connecting hole, a mounting frame is fixed in the piezoelectric ceramic component connecting hole, the mounting base is connected with the mounting frame, and the middle matching layer and the ceramic sheet are positioned in the piezoelectric ceramic component connecting hole; the piezoelectric ceramic component connecting hole with form the edge matching layer installation passageway between the mounting bracket, the edge matching layer is annular structure, the edge matching layer passes through the edge matching layer installation passageway cover is in the outer wall of mounting bracket.
2. An ultrasonic transducer according to claim 1, wherein the connecting member and the wire are of an integrally formed construction.
3. An ultrasonic transducer according to claim 1, wherein the top of the housing is provided with a mounting table on which four sides of the upper cover are located.
4. An ultrasonic sensing device according to claim 1, wherein the outer wall of the housing is provided with an indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741874.7U CN219266171U (en) | 2023-04-06 | 2023-04-06 | Ultrasonic sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320741874.7U CN219266171U (en) | 2023-04-06 | 2023-04-06 | Ultrasonic sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219266171U true CN219266171U (en) | 2023-06-27 |
Family
ID=86855192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320741874.7U Active CN219266171U (en) | 2023-04-06 | 2023-04-06 | Ultrasonic sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219266171U (en) |
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2023
- 2023-04-06 CN CN202320741874.7U patent/CN219266171U/en active Active
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