Ultrasonic vibration displacement sensor

Abstract

The utility model discloses an ultrasonic vibration displacement sensor, which belongs to the related technical field of sensors and comprises an ultrasonic vibration displacement sensor body, a transmitting module and a receiving module, the transmitting module and the receiving module are mounted on the ultrasonic vibration displacement sensor body, and radiating assemblies are mounted on the outer sides of the transmitting module and the receiving module. Heat can be transferred through a plurality of cooling fins which are arranged in a continuous S-shaped structure, the heat exchange area can be effectively increased, then air located on the outer lining of the outer lining is sucked into an air pipe through the communicating pipe through work of a miniature fan, and then the air is exhausted through air holes, so that the heat exchange efficiency is improved, and the heat exchange efficiency is improved. According to the utility model, air flow near the cooling fins can be effectively accelerated, so that the heat dissipation efficiency can be further improved, heat generated by long-time operation of the transmitting module and the receiving module can be quickly dissipated, the displacement sensor body is prevented from being vibrated by ultrasonic waves, and the service life of the displacement sensor body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to sensors, and more specifically, to an ultrasonic vibration displacement sensor. Background Art

[0002] Ultrasonic displacement sensor is a sensor that measures the displacement of an object. It uses the characteristics of ultrasonic waves to achieve measurement.

[0003] The working principle of ultrasonic displacement sensor is mainly divided into two parts; transmission and reception. In the transmission part, the sensor transmitter stimulates the piezoelectric crystal to vibrate through electrical signals, thereby generating ultrasonic waves. After the ultrasonic waves propagate, they will be reflected back from the surface of the object to be measured. In the receiving part, the sensor receiver will convert the reflected ultrasonic waves into electrical signals. According to the relationship between the propagation speed of ultrasonic waves in the air and the reflection time, the displacement of the object can be calculated.

[0004] There is an ultrasonic vibration displacement sensor model RCWL-1601. Since its transmitting part and receiving part are covered with metal sheets, its heat dissipation effect is general. When the ultrasonic vibration displacement sensor is working, the heat generated by the long-term operation of the transmitting part and the receiving part cannot be quickly dissipated, which can easily cause the ultrasonic vibration displacement sensor to burn out and affect its service life. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an ultrasonic vibration displacement sensor, which can transfer heat through a plurality of heat sinks arranged in a continuous S-shaped configuration, which can effectively increase the heat exchange area, and then through the operation of the micro fan, the air located in the outer lining of the outer sleeve is sucked into the air duct through the connecting pipe, and then discharged through the air hole, which can effectively speed up the air flow near the heat sink, thereby further improving the heat dissipation efficiency, so that the heat generated by the long-term operation of the transmitting module and the receiving module can be quickly dissipated, preventing the ultrasonic vibration displacement sensor body and ensuring its service life.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] An ultrasonic vibration displacement sensor comprises an ultrasonic vibration displacement sensor body, and a transmitting module and a receiving module installed at the ultrasonic vibration displacement sensor body, wherein heat dissipation components are installed on the outer sides of the transmitting module and the receiving module;

[0008] The heat dissipation assembly includes an inner sleeve covering the outer side of the transmitting module and the receiving module, an outer sleeve installed on the outer side of the inner sleeve, a heat sink arranged between the inner sleeve and the outer sleeve and arranged in a continuous S configuration, an air duct arranged below the heat sink and having an outer wall fixedly connected to the inner sleeve and the outer sleeve respectively, a connecting pipe installed at the root of the outer side of the outer sleeve and conductively connected to the air duct, an air hole opened on the top of the air duct, and a micro fan installed on the inner side of the connecting pipe;

[0009] A dustproof component is installed at the port of the connecting pipe.

[0010] Furthermore, the joints between the transmitting module and the receiving module and the inner sleeve are coated with thermal conductive silicone grease.

[0011] Furthermore, the inner sleeve, the outer sleeve and the heat sink are an integrally formed structure, and the inner sleeve, the outer sleeve and the heat sink are all made of copper.

[0012] Furthermore, a mounting boss is integrally formed at the end of the connecting pipe, and a screw hole is provided at the edge of the mounting boss.

[0013] Furthermore, the dustproof component includes a dustproof plate installed at the port of the connecting pipe and arranged in an annular structure, and a filter installed on the inner side of the dustproof plate.

[0014] Furthermore, an assembly hole corresponding to the screw hole is formed on the edge of the dustproof plate.

[0015] Furthermore, a sealing rubber ring is embedded on the surface of the dustproof plate close to the connecting pipe, and the sealing rubber ring is in contact with the mounting boss.

[0016] Furthermore, a fixing seat is integrally formed at the root of the outer wall of the outer bushing away from the connecting pipe, and a mounting hole is opened on the surface of the fixing seat.

[0017] Compared with the prior art, the utility model has at least the following beneficial technical effects:

[0018] (1) In this solution, the heat generated during the operation of the transmitting module and the receiving module will be transferred to the inner sleeve, and then the heat will be transferred through a plurality of heat sinks arranged in a continuous S-shaped configuration, which can effectively increase the heat exchange area and improve the heat dissipation efficiency. Then, the micro fan will work to suck the air located on the outer lining of the outer sleeve into the air duct through the connecting pipe, and then be discharged through the air hole, which can effectively speed up the air flow near the heat sink, thereby further improving the heat dissipation efficiency, so that the heat generated by the long-term operation of the transmitting module and the receiving module can be quickly dissipated, preventing the ultrasonic vibration of the displacement sensor body and ensuring its service life.

[0019] (2) In this solution, when the connecting pipe inhales external air, impurities contained in the air are intercepted by the filter installed on the inner side of the dustproof plate, and the filtered air enters the inner side of the connecting pipe, which can effectively prevent impurities from clogging the air holes, thereby ensuring normal airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the heat dissipation component structure of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the heat dissipation component of the utility model from another perspective;

[0023] Figure 4 This is a schematic diagram of the structure of the micro fan and dustproof component of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Ultrasonic vibration displacement sensor body; 2. Transmitter module; 3. Receiving module; 4. Inner bushing; 5. Outer bushing; 6. Heat sink; 7. Air duct; 8. Connecting pipe; 9. Air hole; 10. Micro fan; 11. Mounting boss; 12. Dustproof plate; 13. Filter; 14. Sealing rubber ring; 15. Fixing seat. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-4 An ultrasonic vibration displacement sensor includes an ultrasonic vibration displacement sensor body 1 and a transmitting module 2 and a receiving module 3 installed at the ultrasonic vibration displacement sensor body 1, and heat dissipation components are installed on the outer sides of the transmitting module 2 and the receiving module 3.

[0029] The heat dissipation assembly includes an inner sleeve 4 covering the outside of the transmitting module 2 and the receiving module 3, an outer sleeve 5 installed on the outside of the inner sleeve 4, a heat sink 6 arranged between the inner sleeve 4 and the outer sleeve 5 and arranged in a continuous S configuration, an air duct 7 arranged below the heat sink 6 and the outer wall of which is respectively fixedly connected to the inner sleeve 4 and the outer sleeve 5, a connecting pipe 8 installed at the root of the outer side of the outer sleeve 5 and conductively connected to the air duct 7, an air hole 9 opened at the top of the air duct 7, and a micro fan 10 installed on the inside of the connecting pipe 8.

[0030] A dustproof component is installed at the port of the connecting pipe 8.

[0031] The dustproof assembly includes a dustproof plate 12 installed at the end of the connecting pipe 8 and arranged in an annular structure, and a filter screen 13 installed on the inner side of the dustproof plate 12.

[0032] It should be noted that when the ultrasonic vibration displacement sensor is in use, the heat generated during the operation of the transmitting module 2 and the receiving module 3 will be transferred to the inner liner 4, and then the heat will be transferred through a plurality of heat sinks 6 arranged in a continuous S-shaped configuration, which can effectively increase the heat exchange area and improve the heat dissipation efficiency. Then, the micro fan 10 works to suck the air located on the outer lining of the outer liner 5 into the air duct 7 through the connecting pipe 8, and then discharge it through the air hole 9, which can effectively speed up the air flow near the heat sink 6, thereby further improving the heat dissipation efficiency, so that the heat generated by the long-term operation of the transmitting module 2 and the receiving module 3 can be quickly dissipated, preventing the ultrasonic vibration displacement sensor body 1 from being damaged and ensuring its service life;

[0033] When the connecting pipe 8 inhales external air, impurities contained in the air are intercepted by the filter 13 installed on the inner side of the dustproof plate 12, and the filtered air enters the inner side of the connecting pipe 8, which can effectively prevent impurities from clogging the air holes 9, thereby ensuring the normal circulation of air.

[0034] like Figure 1 , Figure 2 As shown, the joints between the transmitting module 2 and the receiving module 3 and the inner sleeve 4 are coated with thermal conductive silicone grease.

[0035] It should be noted that the provision of thermal conductive silicone grease is conducive to transferring the heat generated by the transmitting module 2 and the receiving module 3 to the inner sleeve 4, so that the heat can be transferred quickly.

[0036] like Figure 2 As shown, the inner sleeve 4, the outer sleeve 5 and the heat sink 6 are an integrally formed structure, and the inner sleeve 4, the outer sleeve 5 and the heat sink 6 are all made of copper.

[0037] It should be noted that copper material has good thermal conductivity, so that the heat dissipation component can play a good heat dissipation role.

[0038] like Figure 4 As shown, a mounting boss 11 is integrally formed at the end of the connecting pipe 8, and a screw hole is provided at the edge of the mounting boss 11, and an assembly hole corresponding to the screw hole is provided at the edge of the dustproof plate 12.

[0039] It should be noted that the assembly and disassembly between the dustproof plate 12 and the mounting boss 11 is convenient.

[0040] like Figure 4 As shown, a sealing rubber ring 14 is embedded on the surface of the dustproof plate 12 close to the connecting pipe 8 , and the sealing rubber ring 14 abuts against the mounting boss 11 .

[0041] It should be noted that by using the sealing rubber ring 14 to fill the gap between the dustproof plate 12 and the mounting boss 11, the air filtering effect can be improved.

[0042] like Figure 1 As shown, a fixing seat 15 is integrally formed at the root of the outer wall of the outer bushing 5 away from the connecting pipe 8 , and a mounting hole is opened on the surface of the fixing seat 15 .

[0043] It should be noted that the heat dissipation assembly can be mounted and fixed on the PCB board constituting the ultrasonic vibration displacement sensor body 1 through the fixing seat 15 .

[0044] When in use: the heat generated during the operation of the transmitting module 2 and the receiving module 3 will be transferred to the inner sleeve 4, and then the heat will be transferred through a plurality of heat sinks 6 arranged in a continuous S-shaped configuration, which can effectively increase the heat exchange area and improve the heat dissipation efficiency. Then, the micro fan 10 will work to suck the air located on the outer lining of the outer sleeve 5 into the air duct 7 through the connecting pipe 8, and then be discharged through the air hole 9, which can effectively speed up the air flow near the heat sink 6, thereby further improving the heat dissipation efficiency.

[0045] When the connecting pipe 8 inhales external air, impurities contained in the air are intercepted by the filter 13 installed on the inner side of the dustproof plate 12, and the filtered air enters the inner side of the connecting pipe 8, which can effectively prevent impurities from clogging the air holes 9, thereby ensuring the normal circulation of air.

[0046] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An ultrasonic vibration displacement sensor, characterized in that: It comprises an ultrasonic vibration displacement sensor body (1), and a transmitting module (2) and a receiving module (3) installed on the ultrasonic vibration displacement sensor body (1), wherein heat dissipation components are installed on the outer sides of the transmitting module (2) and the receiving module (3); The heat dissipation assembly comprises an inner sleeve (4) covering the outer side of the transmitting module (2) and the receiving module (3), an outer sleeve (5) installed on the outer side of the inner sleeve (4), a heat sink (6) arranged between the inner sleeve (4) and the outer sleeve (5) and arranged in a continuous S-shaped configuration, an air duct (7) arranged below the heat sink (6) and having an outer wall fixedly connected to the inner sleeve (4) and the outer sleeve (5), respectively, a connecting pipe (8) installed at the root of the outer side of the outer sleeve (5) and conductively connected to the air duct (7), an air hole (9) provided at the top of the air duct (7), and a micro fan (10) installed on the inner side of the connecting pipe (8); A dustproof component is installed at the port of the connecting pipe (8).

2. The ultrasonic vibration displacement sensor according to claim 1, characterized in that: The joints between the transmitting module (2) and the receiving module (3) and the inner sleeve (4) are coated with thermal conductive silicone grease.

3. The ultrasonic vibration displacement sensor according to claim 1, characterized in that: The inner bushing (4), the outer bushing (5) and the heat sink (6) are an integrally formed structure.

4. The ultrasonic vibration displacement sensor according to claim 1, characterized in that: The inner bushing (4), the outer bushing (5) and the heat sink (6) are all made of copper.

5. The ultrasonic vibration displacement sensor according to claim 1, characterized in that: A mounting boss (11) is integrally formed at the end of the connecting pipe (8), and a screw hole is provided at the edge of the mounting boss (11).

6. The ultrasonic vibration displacement sensor according to claim 5, characterized in that: The dustproof component comprises a dustproof plate (12) installed at the port of the connecting pipe (8) and arranged in an annular structure, and a filter screen (13) installed on the inner side of the dustproof plate (12).

7. The ultrasonic vibration displacement sensor according to claim 6, characterized in that: The edge of the dustproof plate (12) is provided with an assembly hole corresponding to the screw hole.

8. The ultrasonic vibration displacement sensor according to claim 6, characterized in that: A sealing rubber ring (14) is embedded on the surface of the dustproof plate (12) close to the connecting pipe (8).

9. The ultrasonic vibration displacement sensor according to claim 8, characterized in that: The sealing rubber ring (14) abuts against the mounting boss (11).

10. The ultrasonic vibration displacement sensor according to claim 1, characterized in that: A fixing seat (15) is integrally formed at the root of the outer wall of the outer bushing (5) away from the connecting pipe (8), and a mounting hole is provided on the surface of the fixing seat (15).

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