Air permeability tester

Abstract

The embodiment of the utility model discloses an air permeability tester which comprises an air permeability tester box body, and an industrial control all-in-one machine, an air permeability detection device and a heat dissipation module are arranged in the air permeability tester box body; the heat dissipation module comprises a first shell and a first heat dissipation unit; the first heat dissipation unit comprises two fans with opposite wind directions; the first shell is located on the side, away from the air permeability tester box body, of the industrial control all-in-one machine, and two heat dissipation holes are formed in the first shell. The heat dissipation holes are used for fixing the fans in a one-to-one correspondence mode. According to the embodiment of the utility model, the fan is arranged on the backboard of the industrial control all-in-one machine, so that the effects of improving heat dissipation efficiency and reducing fault frequency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of equipment technology, and in particular to an air permeability measuring instrument. Background Technology

[0002] With the continuous improvement of industrial automation, industrial control all-in-one computers have been widely used as key equipment in various industrial control scenarios. These applications often require industrial control all-in-one computers to have efficient, stable, and reliable performance, especially the ability to operate for extended periods under harsh environmental conditions. However, due to the large number of electronic components integrated inside and the significant heat generated under high load conditions, the heat dissipation capacity of industrial control all-in-one computers faces a severe challenge.

[0003] The TQY500 air permeability tester, widely used in the industry, is equipped with an AFL-F08A light industrial panel PC, which in turn is equipped with... Atom TM The fanless system of the processor has limited heat dissipation capacity. During daily operation, the system temperature peaks at 48°C, and the area of ​​the color LCD touch screen near the motherboard gets noticeably hot. Instrument freezing and unresponsiveness occur frequently, affecting the timeliness of testing.

[0004] Traditional heat dissipation solutions mainly include natural cooling, forced air cooling, and liquid cooling. Natural cooling relies on heat exchange between the equipment casing and the outside air. While this method is simple in structure and low in cost, its heat dissipation efficiency is relatively low, making it difficult to meet the needs of high-performance industrial control all-in-one computers. Liquid cooling technology is favored due to its high heat dissipation performance, but its complex system design and high maintenance costs limit its widespread application. Forced air cooling increases the airflow rate to improve heat dissipation by using internal or external fans. Although it improves heat dissipation efficiency, in dusty environments, fans are prone to blockage or even damage, affecting the long-term stability of the heat dissipation system. Utility Model Content

[0005] This invention provides an air permeability measuring instrument, which uses a fan mounted on the back panel of an industrial control all-in-one computer to improve heat dissipation efficiency and reduce the frequency of malfunctions.

[0006] According to one aspect of this utility model, an air permeability measuring instrument is provided, comprising:

[0007] The air permeability measuring instrument housing contains an industrial control integrated computer, an air permeability testing device, and a heat dissipation module.

[0008] The heat dissipation module includes a first housing and a first heat dissipation unit; the first heat dissipation unit includes two fans with opposite airflow directions;

[0009] The first housing is located on the side of the industrial control all-in-one computer away from the air permeability measuring instrument. The first housing has two heat dissipation holes; the heat dissipation holes are used to fix the fan one by one.

[0010] Optionally, the heat dissipation module may also include a first heat sink;

[0011] The first heat sink is located between the industrial control all-in-one computer and the air permeability measuring instrument housing;

[0012] The first heat sink includes a first heat-conducting plate, and the surface of the first heat-conducting plate is provided with multiple parallel heat-conducting ribs.

[0013] Optionally, the height of the corrugated strip is 4-6mm, and the spacing between two adjacent corrugated strips is 3-5mm.

[0014] Optionally, the heat dissipation module may also include multiple second heat sinks;

[0015] The second heat sink includes a second heat-conducting plate;

[0016] Multiple secondary heat sinks are located between the industrial control all-in-one computer and the air permeability measuring instrument housing;

[0017] The first heat sink is located on the surface of the second heat sink, which is on the side away from the industrial control all-in-one computer.

[0018] The second heat sink on the surface is the one that is closest to the industrial control all-in-one computer among multiple second heat sinks.

[0019] Optionally, positioning holes are provided on the edges of the first heat-conducting plate and the edges of the second heat-conducting plate, and the positioning holes penetrate through the first heat-conducting plate and the second heat-conducting plate.

[0020] Optionally, a power module is also installed inside the air permeability measuring instrument.

[0021] The power module is used to provide power to the fan, industrial control computer, and air permeability detection device;

[0022] The heat dissipation module also includes a second housing, which is fixed to the side of the power module away from the air permeability measuring instrument housing;

[0023] The second housing is provided with positioning holes for fixing the second heat dissipation unit.

[0024] Optionally, the second heat dissipation unit is a fan.

[0025] Optionally, there is a receiving space between the second housing and the power module;

[0026] A heat-conducting block is installed inside the containment space;

[0027] The heat-conducting block is located between the second heat dissipation unit and the power module.

[0028] Optionally, a thermally conductive silicone pad is also provided within the housing space;

[0029] The thermally conductive silicone pad is located on the side of the thermally conductive block away from the second heat dissipation unit.

[0030] Optionally, multiple fixing brackets are provided around the second housing, which fix the second housing to the side of the power module away from the air permeability measuring instrument housing;

[0031] And / or, the air permeability measuring instrument housing is also provided with housing positioning holes, and the heat dissipation module also includes a third housing and a third heat dissipation unit. The third housing is fixed in the housing positioning holes and is provided with positioning holes for fixing the third heat dissipation unit; the third heat dissipation unit is a fan.

[0032] The air permeability measuring instrument provided in this embodiment includes an instrument housing, inside which are housed an industrial control computer, an air permeability detection device, and a heat dissipation module. The heat dissipation module includes a first housing and a first heat dissipation unit. The first heat dissipation unit includes two fans with opposite airflow directions. The first housing is located on the side of the industrial control computer away from the instrument housing, and has two heat dissipation holes. These holes are used to fix the fans one-to-one. By installing two fans with opposite airflow directions on the first housing, an air convection effect is created, effectively dissipating the heat generated by the industrial control computer from inside the instrument housing, reducing the temperature inside the housing, and improving heat dissipation efficiency. The one-to-one correspondence between the heat dissipation holes and the fans further ensures smooth airflow, reduces airflow resistance, further improves heat dissipation efficiency, and reduces the frequency of failures of components such as the industrial control computer and the air permeability detection device caused by overheating.

[0033] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of an air permeability measuring instrument provided in an embodiment of this utility model.

[0036] Figure 2This is a schematic diagram of the back panel fan and heat dissipation holes of the industrial control all-in-one computer provided in this embodiment of the utility model.

[0037] Figure 3 This is a schematic diagram of another air permeability measuring instrument provided in an embodiment of this utility model.

[0038] Figure 4 This is a schematic diagram of the heat sink of an air permeability measuring instrument provided in an embodiment of this utility model.

[0039] Figure 5 This is a schematic diagram of the heat sink of another air permeability measuring instrument provided in this embodiment of the present invention.

[0040] Figure 6 This is a schematic diagram of another air permeability measuring instrument provided in an embodiment of this utility model.

[0041] Figure 7 This is a schematic diagram of the heat dissipation device for the power module provided in an embodiment of this utility model.

[0042] Figure 8 This is a top cross-sectional view of an air permeability measuring instrument provided in an embodiment of this utility model. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] This utility model provides an air permeability measuring instrument. Figure 1This is a schematic diagram of the structure of an air permeability measuring instrument provided in an embodiment of this utility model. Figure 2 This is a schematic diagram of the back panel fan and heat dissipation holes of the industrial control all-in-one computer provided in this embodiment of the utility model. (Reference) Figure 1 and Figure 2 The air permeability measuring instrument includes:

[0046] The air permeability measuring instrument housing 10 contains an industrial control integrated computer 11, an air permeability testing device 12, and a heat dissipation module 13.

[0047] The heat dissipation module 13 includes a first housing 131 and a first heat dissipation unit 132; the first heat dissipation unit 132 includes two fans 1321 with opposite airflow directions;

[0048] The first housing 131 is located on the side of the industrial control all-in-one computer 11 away from the air permeability measuring instrument housing 10. The first housing 131 is provided with two heat dissipation holes 1311. The heat dissipation holes 1311 are used to fix the fan 1321 one by one.

[0049] The first heat dissipation unit 132 includes two fans 1321, each measuring 50×50×11.5mm. The two fans have opposite airflow directions, with air entering from the left fan and exiting from the right fan. The diameter and mounting position of the heat dissipation holes 1311 match the specifications of the fans.

[0050] Specifically, the first housing 131 is provided with two circular heat dissipation holes 1311, each with four pre-drilled screw holes for fixing the fan 1321. The fan 1321 should be tightly connected to the first housing 131 of the industrial control all-in-one computer 11, and there should be no obvious vibration during operation.

[0051] The air permeability measuring instrument provided in this embodiment includes an air permeability measuring instrument housing 10. Inside the housing 10 are an industrial control computer 11, an air permeability detection device 12, and a heat dissipation module 13. The heat dissipation module 13 includes a first housing 131 and a first heat dissipation unit 132. The first heat dissipation unit 132 includes two fans 1321 with opposite airflow directions. The first housing 131 is located on the side of the industrial control computer 11 away from the air permeability measuring instrument housing 10, and has two heat dissipation holes 1311. The heat dissipation holes 1311 are used to fix the fans 1321 one-to-one. By setting two fans 1321 with opposite airflow directions on the first housing 131, an air convection effect is formed, which can effectively dissipate the heat generated by the industrial control computer 11 from inside the air permeability measuring instrument housing 10, reduce the temperature inside the housing 10, and improve heat dissipation efficiency. The one-to-one correspondence between the heat dissipation holes 1311 and the fan 1321 further ensures smooth airflow, reduces airflow resistance, further improves heat dissipation efficiency, and reduces the frequency of failures of components such as the industrial control all-in-one computer 11 and the air permeability detection device 12 caused by overheating.

[0052] Figure 3 This is a schematic diagram of another air permeability measuring instrument provided in an embodiment of this utility model. Figure 4 This is a schematic diagram of the heat sink of an air permeability measuring instrument provided in an embodiment of this utility model. (Reference) Figure 3 and Figure 4 Optionally, the heat dissipation module 13 may also include a first heat sink 133;

[0053] The first heat sink 133 is located between the industrial control all-in-one computer 11 and the air permeability measuring instrument housing 10;

[0054] The first heat sink 133 includes a first heat-conducting plate, and the surface of the first heat-conducting plate is provided with a plurality of parallel heat-conducting ribs 1331.

[0055] The first heat sink 133 is made of aluminum; the surface of the first heat sink 133 is smooth and has an irregular structure with heat-conducting ribs 1331 on both sides; the first heat sink 133 has a size of 75×52mm and a thickness of 1mm.

[0056] Specifically, the first heat sink 133 has multiple parallel heat-conducting ribs 1331, which increases the heat dissipation area. With the cooperation of multiple fans 1321, heat can be discharged from the inside of the air permeability measuring instrument housing 10 more quickly, achieving efficient airflow heat dissipation. This does not produce positive or negative pressure effects on the inside of the air permeability measuring instrument housing 10, thereby improving heat dissipation efficiency and reducing operating temperature.

[0057] Optionally, the height of the corrugated strip 1331 is 4-6mm, and the spacing between two adjacent corrugated strips 1331 is 3-5mm.

[0058] Specifically, the height of the ribs 1331 is 5mm, and the spacing between two adjacent ribs 1331 is 4mm. The ribs 1331 not only increase the heat dissipation area but also optimize the heat conduction path through their structure. The gaps between the ribs can form tiny convection channels, which are beneficial for airflow and further promote heat dissipation.

[0059] Figure 5 This is a schematic diagram of the heat sink of another air permeability measuring instrument provided in an embodiment of this utility model. (Reference) Figures 3-5 Optionally, the heat dissipation module 13 may also include a plurality of second heat sinks 134;

[0060] The second heat sink 134 includes a second heat-conducting plate;

[0061] Multiple second heat sinks 134 are located between the industrial control all-in-one computer 11 and the air permeability measuring instrument housing 10;

[0062] The first heat sink 133 is located on the surface of the second heat sink 134, which is away from the industrial control all-in-one computer 11.

[0063] The second heat sink 134 on the surface is the second heat sink 134 that is closest to the industrial control all-in-one computer 11 among multiple second heat sinks 134.

[0064] Specifically, the first heat sink 133 is fixed between the surface second heat sink 134 and the second heat sink 134 by screws passing through the mounting holes, ensuring that the first heat sink 133 and the top bottom of the surface second heat sink 134 are in close contact, thereby increasing the heat dissipation area.

[0065] Optionally, positioning holes 1332 are provided on the edges of the first heat-conducting plate and the edges of the second heat-conducting plate, and the positioning holes 1332 penetrate through the first heat-conducting plate and the second heat-conducting plate.

[0066] Specifically, the first heat-conducting plate is connected to the second heat-conducting plate by screws passing through the positioning hole 1332.

[0067] Figure 6 This is a schematic diagram of another air permeability measuring instrument provided in an embodiment of this utility model. Figure 7 This is a schematic diagram of the heat dissipation device for the power module provided in an embodiment of this utility model. Figure 8 This is a top cross-sectional view of an air permeability measuring instrument provided in an embodiment of this utility model. (Reference) Figures 6-8 Optionally, a power module 14 is also provided inside the air permeability measuring instrument housing 10;

[0068] Power module 14 is used to provide power to the fan, industrial control computer 11 and air permeability detection device 12;

[0069] The heat dissipation module 13 also includes a second housing 135, which is fixed to the side of the power module 14 away from the air permeability measuring instrument housing 10;

[0070] The second housing 135 is provided with a positioning hole 1351, which is used to fix the second heat dissipation unit 141.

[0071] The second housing 135 is custom-made into a square frame using 1mm aluminum sheets. The second housing 135 consists of a circular, hollowed-out top shell and four fixing brackets. Rectangular clips extend from the top and bottom of the second housing 135 to secure the heat-conducting block 142. One end of the power module panel is bent 90° and fixed to the power module 14 with screws. The power module 14 supplies power to the fan, the industrial control computer 11, and the air permeability detection device 12. The voltage of the power module 14 is 12V.

[0072] Specifically, the second housing 135 is provided with a positioning hole 1351 for fixing the second heat dissipation unit 141. The size of the positioning hole 1351 is consistent with the specifications of the second heat dissipation unit 141, both being 80×80×15mm.

[0073] Optionally, the second heat dissipation unit 141 is a fan.

[0074] Specifically, the second heat dissipation unit 141 has dimensions of 80×80×15mm. The blue arrows indicate the airflow direction.

[0075] Optionally, there is a receiving space between the second housing 135 and the power module 14;

[0076] A heat-conducting block 142 is installed inside the containment space;

[0077] The heat-conducting block 142 is located between the second heat dissipation unit 141 and the power module 14.

[0078] The heat-conducting block 142 is made of aluminum; the dimensions of the heat-conducting block 142 are 80×80×30mm.

[0079] Specifically, the heat-conducting block 142 is located between the second heat dissipation unit 141 and the power module 14, and can effectively transfer the heat generated from the power module 14 to the second heat dissipation unit 141, thereby accelerating heat dissipation. The heat-conducting block 142 typically has high thermal conductivity, which can quickly conduct heat from high-temperature areas to low-temperature areas.

[0080] Optionally, a thermally conductive silicone pad is also provided within the housing space;

[0081] The thermally conductive silicone pad is located on the side of the thermally conductive block 142 away from the second heat dissipation unit 141.

[0082] Specifically, the thermally conductive silicone pad is located on the side of the thermally conductive block 142 away from the second heat dissipation unit 141. It can be used to fill the tiny gap between the thermally conductive block 142 and the power module 14, ensuring that heat can be seamlessly transferred to the thermally conductive block 142. The thermally conductive silicone pad not only has good thermal conductivity but also has a certain degree of flexibility, which can adapt to different shapes and surfaces, thereby improving the overall heat transfer efficiency.

[0083] Optionally, multiple fixing brackets 1352 are provided around the second housing 135, and the fixing brackets 1352 fix the second housing 135 to the side of the power module 14 away from the air permeability measuring instrument housing 10.

[0084] And / or, the air permeability measuring instrument housing is also provided with housing positioning holes, and the heat dissipation module 13 also includes a third housing 136 and a third heat dissipation unit 137. The third housing 136 is fixed in the housing positioning hole, and the third housing 136 is provided with positioning holes for fixing the third heat dissipation unit 137; the third heat dissipation unit 137 is a fan.

[0085] Four fixed brackets 1352 are provided, and the four fixed brackets 1352 are integrally formed with fixing holes at both ends to fix the second housing 135 to the side of the power module 14 away from the air permeability measuring instrument housing 10. The third heat dissipation unit 137 has a size of 80×80×15mm.

[0086] Specifically, after the second housing 135 is connected to the fixed bracket 1352, the second heat dissipation unit 141 and the heat-conducting block 142 should not have relative displacement and should be tightly fitted with the power module 14. The air permeability tester generates a certain amount of heat during operation, especially during long-term continuous operation or high-load operation. By setting up a dedicated heat dissipation module inside the housing, and especially by using a fan as the third heat dissipation unit 137, heat dissipation efficiency can be improved, ensuring that the internal temperature of the air permeability tester housing remains within a reasonable range, and preventing frequent malfunctions of components such as the industrial control computer 11 and the air permeability detection device 12 due to overheating.

[0087] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0088] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An air permeability measuring instrument, characterized in that, include: The air permeability measuring instrument housing contains an industrial control integrated computer, an air permeability detection device, and a heat dissipation module. The heat dissipation module includes a first housing and a first heat dissipation unit; the first heat dissipation unit includes two fans with opposite airflow directions; The first housing is located on the side of the industrial control computer away from the air permeability measuring instrument housing, and the first housing is provided with two heat dissipation holes; the heat dissipation holes are used to fix the fan one by one.

2. The air permeability measuring instrument according to claim 1, characterized in that: The heat dissipation module further includes a first heat sink; The first heat sink is located between the industrial control all-in-one computer and the air permeability measuring instrument housing; The first heat sink includes a first heat-conducting plate, and the surface of the first heat-conducting plate is provided with multiple parallel heat-conducting ribs.

3. The air permeability measuring instrument according to claim 2, characterized in that, The height of the corrugated strip is 4-6mm, and the spacing between two adjacent corrugated strips is 3-5mm.

4. The air permeability measuring instrument according to claim 2, characterized in that, The heat dissipation module also includes multiple second heat sinks; The second heat sink includes a second heat-conducting plate; Multiple second heat sinks are located between the industrial control all-in-one computer and the air permeability measuring instrument housing; The first heat sink is located on the surface of the second heat sink, on the side of the second heat sink away from the industrial control all-in-one computer; The second heat sink on the surface is the second heat sink that is closest to the industrial control all-in-one computer among a plurality of second heat sinks.

5. The air permeability measuring instrument according to claim 4, characterized in that, Positioning holes are provided on the edges of the first heat-conducting plate and the second heat-conducting plate, and the positioning holes penetrate through the first heat-conducting plate and the second heat-conducting plate.

6. The air permeability measuring instrument according to claim 1, characterized in that, The air permeability measuring instrument is also equipped with a power module inside its housing; The power module is used to provide power to the fan, the industrial control computer and the air permeability detection device; The heat dissipation module also includes a second housing, which is fixed to the side of the power module away from the air permeability measuring instrument housing. The second housing is provided with positioning holes for fixing the second heat dissipation unit.

7. The air permeability measuring instrument according to claim 6, characterized in that, The second heat dissipation unit is a fan.

8. The air permeability measuring instrument according to claim 6, characterized in that, There is an accommodating space between the second housing and the power module; A heat-conducting block is provided inside the accommodating space; The heat-conducting block is located between the second heat dissipation unit and the power module.

9. The air permeability measuring instrument according to claim 8, characterized in that, The space containing the material is also provided with a thermally conductive silicone sheet; The thermally conductive silicone pad is located on the side of the thermally conductive block away from the second heat dissipation unit.

10. The air permeability measuring instrument according to claim 6, characterized in that, The second housing is provided with multiple fixing brackets around its perimeter, which fix the second housing to the side of the power module away from the air permeability measuring instrument housing; And / or, the air permeability measuring instrument housing is further provided with a housing positioning hole, and the heat dissipation module further includes a third housing and a third heat dissipation unit. The third housing is fixed in the housing positioning hole, and the third housing is provided with a positioning hole for fixing the third heat dissipation unit; the third heat dissipation unit is a fan.

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