CN215744624U - Detector and ultrasonic probe structure - Google Patents
Detector and ultrasonic probe structure Download PDFInfo
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- CN215744624U CN215744624U CN202120751123.4U CN202120751123U CN215744624U CN 215744624 U CN215744624 U CN 215744624U CN 202120751123 U CN202120751123 U CN 202120751123U CN 215744624 U CN215744624 U CN 215744624U
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- 239000000523 sample Substances 0.000 title claims abstract description 26
- 238000013016 damping Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 description 5
- 238000002592 echocardiography Methods 0.000 description 5
- 238000002604 ultrasonography Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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Abstract
The utility model relates to a detector and an ultrasonic probe structure, wherein the detector comprises a shell, a first transducer and a second transducer, wherein the first transducer and the second transducer are arranged on the shell; a spacing exists between the first transducer and the second transducer. The ultrasonic probe is improved at the detector end, so that the ultrasonic probe can simultaneously transmit and receive ultrasonic waves, the problem of a close-range blind area is effectively solved, and full-range detection is realized.
Description
Technical Field
The utility model relates to the technical field of ultrasonic probes, in particular to a detector and an ultrasonic probe structure.
Background
The ultrasonic probe realizes the transmission and the reception of ultrasonic waves by using the piezoelectric ceramic plate as a transducer. Certain ultrasonic frequency electric signals are applied to the piezoelectric ceramic piece of the probe, and the piezoelectric ceramic piece converts the electric energy into sound energy to send ultrasonic waves. When echoes are received, the echoes act on the piezoelectric ceramic pieces of the probe, the piezoelectric ceramic pieces convert sound energy into electric signals, and the weak electric signals are amplified and then sent to a circuit for processing.
The key device of the ultrasonic probe for realizing piezoelectric conversion is a detector, and after ultrasonic vibration is transmitted each time, the detector can maintain vibration for a period of time due to inherent characteristics until the vibration on the surface of the detector tends to be calm, and the period of time is called as residual vibration in the industry.
Generally, in actual use, the ultrasonic probe is used for both transmitting and receiving ultrasonic waves. However, due to the existence of aftervibration, the detector cannot effectively receive echo within the aftervibration time, so that a short-distance blind area problem exists, and effective detection at a full distance cannot be realized. The close range blind area is: when the ultrasonic wave touches a short-distance obstacle, residual vibration still exists due to short time difference, and the generated echo cannot be accurately detected by the detector, so that the short-distance obstacle is missed to be detected.
The designer can make a deep conception for the problems and then the scheme is generated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a detector and an ultrasonic probe structure which can effectively solve the problem of short-distance blind areas and realize full-distance detection.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a detector structure comprises a shell, a first transducer and a second transducer, wherein the first transducer and the second transducer are arranged on the shell; a spacing exists between the first transducer and the second transducer.
And a damping unit is arranged between the first transducer and the second transducer and used for blocking the vibration of the first transducer or the second transducer.
The first transducer and the second transducer are concentrically arranged, the first transducer is in an annular structure, and the second transducer is arranged in the ring of the first transducer.
The first transducer and the second transducer are arranged side by side.
The detector is provided with three PIN needles connected with the outside, wherein two PIN needles are respectively connected with the first transducer and the second transducer and are used for inputting driving signals or receiving ultrasonic echo signals; the other PIN is used as a grounding PIN and is connected with the first transducer and the second transducer.
The detector is provided with four PIN needles connected with the outside, wherein two PIN needles are connected with the first energy converter, and the other two PIN needles are connected with the second energy converter.
An ultrasonic probe structure comprises a terminal seat, a circuit board and the detector, wherein the circuit board and the detector are arranged in the terminal seat, and the detector is connected with the circuit board.
After the scheme is adopted, the ultrasonic probe is improved at the detector end, so that the ultrasonic probe can simultaneously transmit and receive ultrasonic waves, the problem of a close-range blind area is effectively solved, and full-range detection is realized. In addition, signals can be transmitted and received at the detector end at the same time, and the transmitting position of the ultrasonic wave is close to the position of receiving the echo, so that the echo signals can be accurately received, and the distance and the position of the front obstacle can be accurately judged.
Drawings
FIG. 1 is an exploded view of an ultrasound probe;
fig. 2 is a schematic structural diagram of a detector according to a first embodiment;
FIG. 3 is an exploded view of the detector of the first embodiment;
fig. 4 is a schematic structural diagram of a detector according to a first embodiment;
FIG. 5 is an exploded view of the detector of the first embodiment;
figure 6 is a cross-sectional view of the detector of the first embodiment;
figures 7-10 are front, top, bottom and side views, respectively, of the detector of the first embodiment;
fig. 11 is a schematic view of a detector structure according to a second embodiment;
FIG. 12 is an exploded view of a detector according to a second embodiment;
figure 13 is a cross-sectional view of a sensor according to a second embodiment;
figures 14-16 are front, top and side views, respectively, of a detector according to a second embodiment;
fig. 17 is a schematic structural diagram of a detector according to a third embodiment;
fig. 18 is an exploded view of the detector of the third embodiment;
figure 19 is a cross-sectional view of a detector of the third embodiment;
figures 20-22 are front, top and side views, respectively, of a sensor according to a third embodiment.
Description of reference numerals:
a terminal base 10; a circuit board 20; a detector 30;
a housing 31; a first transducer 32; a second transducer 33; a damping unit 34; a PIN 35.
Detailed Description
In view of the problem of close range blind area of the conventional ultrasonic probe, the present invention provides an ultrasonic probe capable of effectively receiving echo signals within the residual oscillation time, as shown in fig. 1, the ultrasonic probe includes a terminal base 10, a circuit board 20 and a detector 30, wherein the detector 30 is connected to the circuit board 20, and is disposed on the terminal base 10 together with the circuit board 20. The circuit board 20 of the ultrasonic probe generates a driving signal and transmits the driving signal to the detector 30, the detector 30 receives the driving signal and then transmits ultrasonic waves to the outside, and meanwhile, the detector 30 receives an echo and converts the echo into an electric signal to be transmitted to the circuit board 20 for processing. The key to the ability of the ultrasound probe to transmit and receive ultrasound waves at the same time is the improvement of the present invention in the probe 30.
Specifically, as shown in fig. 2-3, the improved sensor 30 structure of the present invention comprises a housing 31, and a first transducer 32 and a second transducer 33 disposed on the housing 31, wherein a gap exists between the first transducer 32 and the second transducer 33. The first transducer 32 and the second transducer 33 are both connected to the circuit board 20, so both the first transducer 32 and the second transducer 33 can be used to transmit or receive ultrasonic waves. The transmission and reception between the first transducer 32 and the second transducer 33 are independent, so that one of the transducers may be arranged to transmit ultrasound and the other to receive echoes. The present invention provides a spacing between the first transducer 32 and the second transducer 33 to ensure that the two transducers do not interfere with each other. Because the two transducers do not influence each other, one detector 30 can receive and transmit ultrasonic waves at the same time, thereby effectively solving the problem of a close-range blind area and realizing full-distance detection. In a specific use process, the first transducer 32 and the second transducer 33 can be set to different operation modes according to actual use requirements. For example, one of the first transducer 32 and the second transducer 33 is used to transmit ultrasonic waves, and the other is used to receive echoes; or one of the first transducer 32 and the second transducer 33 is used for transmitting and receiving ultrasonic waves (after the transmission is completed, the reception is performed), and the other is used for receiving echoes; still alternatively, both the first transducer 32 and the second transducer 33 are used to transmit and receive ultrasonic waves.
As shown in fig. 4-22, in order to further ensure the relative independence of the first transducer 32 and the second transducer 33, a damping unit 34 is disposed between the first transducer 32 and the second transducer 33, and the damping unit 34 is used for blocking the vibration of the first transducer 32 or the second transducer 33. For example, when the first transducer 32 is used to emit ultrasonic waves to generate vibrations, the damping unit 34 can effectively prevent the vibrations generated by the first transducer 32 from affecting the second transducer 33. Also, the damping unit 34 can effectively prevent the vibration generated by the second transducer 33 from affecting the first transducer 32. The damping unit 34 may be integrally designed with the housing 31 or may be provided separately. In this embodiment, the damping unit 34 is integrally designed with the housing 31, and serves as the housing 31 in addition to blocking the first transducer 32 and the second transducer 33, and thus limits the first transducer 32 and the second transducer 33 in a certain area.
The shape and position of the first transducer 32 and the second transducer 33 may be adapted according to the specific use scenario. As shown in fig. 4-10, the first transducer 32 and the second transducer 33 are concentrically arranged. Specifically, the first transducer 32 has a ring structure, the second transducer 33 has a circular structure, the first transducer 32 and the second transducer 33 form concentric circles, and the first transducer 32 and the second transducer 33 are isolated by the damping unit 34. Of course, the first transducer 32 and the second transducer 33 may be provided in the shape of a square, a polygon, or the like. As further shown in fig. 11-22, the transducer and the second transducer 33 are arranged side by side. In the sensor 30 shown in fig. 11-16, the first transducer 32 and the second transducer 33 are both semicircular structures, and are arranged left and right, and then separated by a damping unit 34. The first transducer 32, the second transducer 33 and the damping unit 34 cooperate to form a circle. In the sensor 30 shown in fig. 17-22, the first transducer 32 and the second transducer 33 are both circular and arranged in a left-right manner, and the blocking unit wraps the first transducer 32 and the second transducer 33 and blocks the first transducer and the second transducer 33, so that the overall appearance is oval.
The first transducer 32 and the second transducer 33 are connected to the circuit board 20 through PIN PINs, so the sensor 30 is generally provided with three or four PIN PINs connected to the circuit board 20. When the detector 30 is provided with three PIN PINs, two PIN PINs are respectively connected with the first transducer 32 and the second transducer 33 and used for inputting driving signals or transmitting ultrasonic echo signals; the other PIN is connected as a ground PIN to both the first transducer 32 and the second transducer 33. When the detector 30 is provided with four PIN PINs, two PIN PINs are connected to the first transducer 32, and the other two PIN PINs are connected to the second transducer 33. The first transducer 32 and the second transducer 33 input a driving signal or transmit an ultrasonic echo signal through one of the PIN PINs.
In summary, the key point of the present invention is that the ultrasonic probe is improved at the detector 30 end, so that the ultrasonic probe can transmit and receive ultrasonic waves simultaneously, thereby effectively solving the problem of a close-range blind area and realizing full-range detection. Furthermore, since the signals can be transmitted and received simultaneously at the detector 30, and the transmitting position of the ultrasonic wave and the position of the received echo are close to each other, the echo signal can be received accurately, and the distance and position of the obstacle ahead can be determined accurately.
The above description is only exemplary of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above exemplary embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (7)
1. A detector structure is characterized in that: the ultrasonic transducer comprises a shell, and a first transducer and a second transducer which are arranged on the shell, wherein the first transducer is used for transmitting or receiving ultrasonic waves, and the second transducer is used for transmitting or receiving ultrasonic waves; a spacing exists between the first transducer and the second transducer.
2. The detector structure of claim 1, wherein: and a damping unit is arranged between the first transducer and the second transducer and used for blocking the vibration of the first transducer or the second transducer.
3. The detector structure of claim 2, wherein: the first transducer and the second transducer are concentrically arranged, the first transducer is in an annular structure, and the second transducer is arranged in the ring of the first transducer.
4. The detector structure of claim 2, wherein: the first transducer and the second transducer are arranged side by side.
5. The detector structure of claim 1, wherein: the detector is provided with three PIN needles connected with the outside, wherein two PIN needles are respectively connected with the first transducer and the second transducer and are used for inputting driving signals or receiving ultrasonic echo signals; the other PIN is used as a grounding PIN and is connected with the first transducer and the second transducer.
6. The detector structure of claim 1, wherein: the detector is provided with four PIN needles connected with the outside, wherein two PIN needles are connected with the first energy converter, and the other two PIN needles are connected with the second energy converter.
7. An ultrasonic probe structure characterized in that: comprising a terminal base, a circuit board and a detector according to any of claims 1-6, said circuit board and detector being arranged in the terminal base and said detector being connected to the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751123.4U CN215744624U (en) | 2021-04-13 | 2021-04-13 | Detector and ultrasonic probe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120751123.4U CN215744624U (en) | 2021-04-13 | 2021-04-13 | Detector and ultrasonic probe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215744624U true CN215744624U (en) | 2022-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120751123.4U Active CN215744624U (en) | 2021-04-13 | 2021-04-13 | Detector and ultrasonic probe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215744624U (en) |
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2021
- 2021-04-13 CN CN202120751123.4U patent/CN215744624U/en active Active
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