Active air cooling radiator for ultrasonic transducer

Abstract

The utility model discloses an active air-cooled radiator for an ultrasonic transducer, which comprises the ultrasonic transducer and an air-cooled radiating device, the ultrasonic transducer is arranged below the air-cooled radiating device, the air-cooled radiating device comprises an upper shell, a middle shell and a lower shell, and the upper shell, the middle shell and the lower shell are fixedly connected in sequence from top to bottom and then are connected with the ultrasonic transducer. A red copper heat dissipation mechanism is arranged in the lower shell and tightly attached to the upper portion of the ultrasonic transducer, a micro gap used for allowing air to enter from the outside is formed between the lower shell and the middle shell, a heat dissipation fan used for exhausting air from the lower shell and a fairing used for guiding the air flow direction are arranged in the middle shell, and gaps are reserved between the two sides of the fairing and the side wall of the middle shell. The cooling fan is located below the fairing and a certain distance is formed between the cooling fan and the fairing. The side wall face of the middle shell and the top of the upper shell are each provided with a plurality of cooling holes. According to the utility model, a good heat exchange effect can be provided for the ultrasonic transducer, the cost is low, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic transducers, in particular to an active air-cooling radiator for ultrasonic transducers. Background Art

[0002] An ultrasonic transducer is a device that can convert electrical energy into ultrasonic waves (mechanical energy). Its working principle is mainly based on the piezoelectric effect, that is, piezoelectric materials will undergo mechanical deformation under the action of an electric field, thereby generating ultrasonic waves. This type of equipment is widely used in medical, industrial, consumer electronics and other fields. Specific applications include ultrasonic cleaning, ultrasonic welding, ultrasonic flaw detection, ultrasonic imaging, etc. As the ultrasonic transducer works, the temperature of the transducer will rise. Therefore, good cooling conditions must be provided for the ultrasonic transducer to ensure that it can fully dissipate heat and extend the service life of the ultrasonic transducer. Most of the heat dissipation in the prior art adopts a downward pressure radiator design, that is, the radiator and the cooling fan are installed in sequence above the ultrasonic transducer, which is prone to the following disadvantages:

[0003] (1) Cold air is sucked in from the top of the device, and the cold air exchanges heat with the radiator before being discharged from the side. However, during long-term use, the exhausted hot air will rise, and part of the hot air will be sucked back into the device by the top cooling fan to participate in the heat cycle, which greatly affects the heat dissipation effect;

[0004] (2) Since the fan is installed flat on top of the radiator, the air will directly impact the end surface of the fins of the radiator when the fan is running, generating a large airflow noise, slowing down the airflow speed and reducing the effective flow rate, making the heat dissipation effect worse and generating a large noise when the equipment is working;

[0005] (3) Installing the cooling fan on the top is not conducive to stacking and assembling with other components. For devices such as cylindrical treatment heads, if the heat generation location is at the bottom of the device, the radiator and fan need to be installed at the bottom of the device, and a channel for cold air intake needs to be reserved in the center of the device, and exhaust and heat dissipation holes need to be added on the lower side. Utility Model Content

[0006] Technical purpose: In view of the deficiencies of the existing technology, the utility model discloses an active air-cooled radiator for an ultrasonic transducer, which can effectively dissipate the heat of the ultrasonic transducer and ensure the use effect and life of the ultrasonic transducer.

[0007] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0008] An active air-cooled radiator for an ultrasonic transducer comprises an ultrasonic transducer and an air-cooled heat dissipation device, wherein the ultrasonic transducer is arranged below the air-cooled heat dissipation device, and the air-cooled heat dissipation device comprises an upper shell, a middle shell and a lower shell, wherein the upper shell, the middle shell and the lower shell are fixedly connected in sequence from top to bottom and then connected to the ultrasonic transducer, a copper heat dissipation mechanism for absorbing heat generated by the ultrasonic transducer is arranged inside the lower shell, the copper heat dissipation mechanism is closely attached to the top of the ultrasonic transducer, a micro-slit for air intake from the outside is formed between the lower shell and the middle shell, a heat dissipation fan for extracting air from the lower shell and a fairing for guiding the flow direction of the airflow are arranged inside the middle shell, gaps are left between the two sides of the fairing and the side walls of the middle shell, the heat dissipation fan is located below the fairing and forms a certain distance between the fairing, and a plurality of heat dissipation holes are arranged on the side wall surface of the middle shell and the top of the upper shell.

[0009] Preferably, thermal conductive silicone grease is provided on the portion of the copper heat dissipation mechanism that contacts the ultrasonic transducer.

[0010] Preferably, the wall surface of the middle shell close to one end of the lower shell is a clam-shaped curved surface.

[0011] Preferably, the copper heat dissipation mechanism includes a plurality of copper heat dissipation fins arranged in parallel, and the heat conduction direction of the copper heat dissipation fins is from the ultrasonic transducer to the heat dissipation fan.

[0012] Preferably, the fairing is in the shape of a truncated cone, with a surface with a smaller area close to the cooling fan and a surface with a larger area away from the cooling fan.

[0013] Preferably, a nylon isolation column is provided between the cooling fan and the fairing.

[0014] Preferably, a quick-release female seat is provided at the upper end of the upper shell.

[0015] Beneficial effects:

[0016] The utility model forms a semi-enclosed air-cooling heat dissipation device by arranging an upper shell, a middle shell and a lower shell above the ultrasonic transducer; the heat generated by the ultrasonic transducer can be transferred to the copper heat dissipation mechanism through the copper heat dissipation mechanism arranged in the lower shell; and then the hot air is discharged through the heat dissipation holes of the middle shell and the upper shell through the heat dissipation fan and the fairing arranged above; at the same time, a micro-slit is arranged between the lower shell and the middle shell, so that air can be taken in from the outside to cool various internal components, forming a heat dissipation duct that takes in air from the side and exhausts air from the side and the top, effectively improving the heat conduction and dissipation efficiency, providing a good heat dissipation effect for the ultrasonic transducer, ensuring that the ultrasonic transducer can maintain a stable working temperature when working; and the heat dissipation duct that takes in air from the side and exhausts air from the side and the top can also make the ultrasonic transducer and the air-cooling heat dissipation device have less noise when working.

[0017] The utility model arranges thermal conductive silicone grease between the copper heat dissipation mechanism and the contact surface of the ultrasonic transducer, which can effectively conduct the heat generated by the ultrasonic transducer to the copper heat dissipation mechanism, and arranges a plurality of parallel copper heat dissipation fins on the copper heat exchange mechanism, and the heat conduction direction is from the super energy heat exchanger to the heat dissipation fan, which can increase the heat dissipation area and effectively conduct heat to the heat dissipation fan.

[0018] The utility model forms a certain distance between the heat dissipation fan and the fairing by the nylon isolation column, thereby ensuring the flow space of gas. At the same time, the fairing is in the shape of a truncated cone, and the surface with a smaller area is close to the heat dissipation fan, and the surface with a larger area is far away from the heat dissipation wind. It can effectively guide the flow of hot air and reduce the turbulence in the flow of hot air. It can divert the hot air from the heat dissipation fan to different directions so that the hot air can be discharged more evenly and avoid the accumulation of hot air in a certain area. At the same time, the streamlined design reduces the eddy current and noise in the gas flow, making the device quieter during operation.

[0019] The utility model can realize the rapid disassembly and assembly of the air-cooling heat dissipation device by arranging the quick-release female seat on the upper shell, which is convenient to use and is conducive to stacking and assembling with other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0021] Figure 1 It is an exploded view of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 This is the external overall structure diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of the gas flow direction when the active air-cooling radiator of the utility model is working.

[0025] In the figure: 1. ultrasonic transducer; 2. lower shell; 21. copper heat dissipation mechanism; 3. middle shell; 31. cooling fan; 32. fairing; 33. nylon isolation column; 4. upper shell; 41. quick-release mother seat. DETAILED DESCRIPTION

[0026] The present invention will be described more clearly and completely below by way of a preferred embodiment in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiment.

[0027] like Figure 1-3As shown, an active air-cooled heat sink for an ultrasonic transducer comprises an ultrasonic transducer 1 and an air-cooled heat sink, wherein the ultrasonic transducer 1 is arranged below the air-cooled heat sink, and the air-cooled heat sink comprises an upper shell 4, a middle shell 3 and a lower shell 2, wherein the upper shell 4, the middle shell 3 and the lower shell 2 are fixedly connected in sequence from top to bottom and then connected to the ultrasonic transducer 1, and the lower shell 2 is connected to the ultrasonic transducer 1 through a copper stud, and a copper heat sink 21 for conducting heat generated by the ultrasonic transducer 1 is arranged inside the lower shell 2, and the copper heat sink 21 is closely attached to the upper part of the ultrasonic transducer 1, and a micro-hole for air intake from the outside is formed between the lower shell 2 and the middle shell 3. The micro-slits can allow cold air from the outside to enter the device, forming an airflow from the bottom to the top to cool the internal components; a cooling fan 31 for extracting air from the lower shell 2 and a fairing 32 for guiding the airflow are arranged inside the middle shell 3, and gaps are left between the fairing 32 and the side walls of the middle shell 3 on both sides; the cooling fan 31 is located below the fairing 32 and a nylon isolation column is arranged between the fairing 32, and a certain distance is formed between the two through the nylon isolation column 33; a number of heat dissipation holes are arranged on the side wall of the middle shell 3 and the top of the upper shell 4, and these heat dissipation holes discharge the hot air guided by the fairing 32 to the outside of the device.

[0028] Assuming that the width of the micro-slit is Amm and the diameter of the device is D, the flow area is AπD, and the area of ​​a single circular hole with a diameter of A is πAA / 4. The circular holes are arranged at a spacing of 1.5A, so two rows of circular holes with the same flow area are required on the outer circle of the device, and their width is A+A+0.5A. It can be seen that in the case of the same flow area, micro-slits save area than setting circular holes. Therefore, micro-slit air intake is superior in terms of surface integrity and continuity of flow cross-section.

[0029] The wall surface of the middle shell 3 near the lower shell 2 is a clam-shaped curved surface. Figure 2 In the part marked by the black line, the main functions of setting the clam-like surface are: 1. To guide the airflow to enter from the micro-slit and then flow downward to the root of the copper heat sink fin, that is, the core area of ​​the heat source, to improve the heat dissipation effect; 2. To have a concealing effect. When looking from the outer surface of the device through the micro-slit to the inside, the clam-like surface can block the direct line of sight to a certain extent and avoid exposing the internal components.

[0030] In a specific embodiment, thermal grease is provided on the portion where the copper heat dissipation mechanism 21 contacts the ultrasonic transducer 1, and the copper heat dissipation mechanism 21 includes a plurality of parallel copper heat dissipation fins, the thermal conductivity of the copper heat dissipation fins is from the ultrasonic transducer 1 to the cooling fan 31, and the copper heat dissipation mechanism 21 is in contact with the ultrasonic transducer 1 through the thermal grease, so as to quickly absorb the heat generated by the ultrasonic transducer 1. At the same time, the plurality of parallel copper heat dissipation fins greatly increase the heat dissipation surface area and can effectively guide the heat flow to the cooling fan 31.

[0031] The cooling fan 31 is installed in a manner of extracting air from the lower shell 2. The cooling fan 31 blows air upward to quickly take the absorbed hot air away from the copper cooling fins, effectively preventing heat from accumulating at the copper cooling fins and improving the cooling efficiency.

[0032] The fairing 32 is truncated cone-shaped, with a smaller surface close to the cooling fan 31 and a larger surface away from the cooling fan 31. The hot air from the cooling fan 31 can be diverted to the cooling holes on the side of the middle shell 3 and the upper shell. The hot and humid air can be discharged from the device more evenly, avoiding local overheating and ensuring uniform temperature distribution in various areas inside the device.

[0033] In a specific embodiment, a quick-release female seat 41 is provided at the upper end of the upper shell 4 , and the quick-release female seat 41 is fixed to the top of the upper shell 4 by countersunk screws for quick disassembly and connection of the upper shell 4 .

[0034] The working principle of the utility model is as follows: Figure 4 As shown, the cold air from the outside enters the interior of the air-cooled heat dissipation device through the micro-slit between the lower shell 2 and the middle shell 3. The ultrasonic transducer 1 generates heat when working, and the heat is conducted to the copper heat dissipation mechanism 21 through contact with thermal conductive silicone grease. Several copper heat dissipation fins arranged in parallel on the copper heat dissipation mechanism 21 dissipate heat through the surface area, and then the heat dissipation fan 31 extracts the heat of the copper heat dissipation fins and blows air upward, further blowing the hot air to the fairing 32 area, and the hot air is diverted through the fairing 32 to be evenly distributed to the heat dissipation holes on the side of the middle shell 3 and the top of the upper shell 4, and finally discharged through the heat dissipation holes on the side of the middle shell 3 and the top of the upper shell 4. Through the efficient heat dissipation structure and the reasonable airflow channel, it is ensured that the ultrasonic transducer 1 maintains a stable temperature during operation, extends its service life and improves work efficiency. At the same time, by optimizing the airflow path, the noise generated by the device during operation can be effectively reduced.

[0035] The air-cooled heat dissipation device of the utility model is designed for active heat dissipation. After the ultrasonic transducer is working, the copper heat dissipation mechanism will conduct the heat generated by the ultrasonic transducer to the heat dissipation fan. When the heat dissipation fan is turned on, the hot air will be blown upward to the fairing, and then the gas will be diverted through the fairing to the heat dissipation holes of the middle shell and the upper shell to discharge the hot air. At the same time, the air intake micro-slit between the lower shell and the middle shell can also allow the outside cold air to enter the inside of the air-cooled heat dissipation device to cool each component without the need for additional operation and adjustment.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An active air-cooled radiator for an ultrasonic transducer, characterized in that: The ultrasonic transducer (1) and an air-cooled heat dissipation device are provided. The ultrasonic transducer (1) is arranged below the air-cooled heat dissipation device. The air-cooled heat dissipation device comprises an upper shell (4), a middle shell (3) and a lower shell (2). The upper shell (4), the middle shell (3) and the lower shell (2) are fixedly connected in sequence from top to bottom and then connected to the ultrasonic transducer (1). A copper heat dissipation mechanism (21) for absorbing heat generated by the ultrasonic transducer (1) is provided inside the lower shell (2). The copper heat dissipation mechanism (21) is closely attached to the ultrasonic transducer (1). ), a micro gap for air intake from the outside is formed between the lower shell (2) and the middle shell (3), a cooling fan (31) for extracting air from the lower shell (2) and a fairing (32) for guiding the flow of air are arranged inside the middle shell (3), gaps are left between the two sides of the fairing (32) and the side wall of the middle shell (3), the cooling fan (31) is located below the fairing (32) and forms a certain distance between the fairing (32), and a plurality of cooling holes are arranged on the side wall of the middle shell (3) and the top of the upper shell (4).

2. The active air-cooled radiator for ultrasonic transducer according to claim 1, characterized in that: Thermally conductive silicone grease is provided on the portion of the copper heat dissipation mechanism (21) that contacts the ultrasonic transducer (1).

3. The active air-cooled radiator for ultrasonic transducer according to claim 2, characterized in that: The copper heat dissipation mechanism (21) comprises a plurality of copper heat dissipation fins arranged in parallel, and the heat conduction direction of the copper heat dissipation fins is from the ultrasonic transducer (1) to the heat dissipation fan (31).

4. The active air-cooled radiator for ultrasonic transducer according to claim 1, characterized in that: The wall surface of the middle shell (3) close to one end of the lower shell (2) is a clam-shaped curved surface.

5. The active air-cooled radiator for ultrasonic transducer according to claim 1, characterized in that: The fairing (32) is in the shape of a truncated cone, with a surface with a smaller area close to the cooling fan (31) and a surface with a larger area away from the cooling fan (31).

6. The active air-cooled heat sink for ultrasonic transducer according to claim 1, characterized in that: A nylon isolation column (33) is provided between the cooling fan (31) and the fairing (32).

7. The active air-cooled radiator for ultrasonic transducer according to claim 1, characterized in that: A quick-release female seat (41) is provided at the upper end of the upper shell.

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