Cooling system and biochemical equipment

Abstract

The present application provides a heat dissipation system, including: a heat dissipation pipe, including an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet; a first fan, located in the air duct and at the air outlet; and a second fan, located in the air duct and spaced apart from the first fan, the first fan and the second fan are used to simultaneously exhaust air so that the gas sucked from the air inlet flows along the air duct to the air outlet. The above-mentioned heat dissipation system is conducive to improving the heat dissipation efficiency. The present application also provides a biochemical device. When the biochemical device is a biochemical sample processing device, the heat dissipation system applied to the biochemical device can also avoid cross-contamination of reagent samples and improve the detection accuracy of the biochemical device.

Description

Technical Field

[0001] The present application relates to the field of heat dissipation technology, and in particular to a heat dissipation system and a biochemical device using the heat dissipation system. Background Art

[0002] For some instruments with enclosed spaces, heat is usually dissipated by adding cooling fans on the top, side or back of the instrument housing. The above method has low heat dissipation efficiency, which makes it difficult for the temperature of the enclosed space to drop to the required temperature, which easily leads to failure of various functional modules located in the enclosed space.

[0003] For example, for biochemical sample processing equipment, when the temperature in the closed space is too high, its temperature control module cannot be reduced to a specific temperature, and its communication module is disconnected. In addition, the closed space of the biochemical sample processing equipment is loaded with various reagent samples. When the temperature in the cabin is too high, the evaporation rate of various reagents is fast, which will cause cross-contamination of samples and affect the quality of biochemical reactions. Utility Model Content

[0004] A first aspect of the present application provides a heat dissipation system, comprising: a heat dissipation pipe, comprising an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet; a first fan, located in the air duct and at the air outlet; and a second fan, located in the air duct and spaced apart from the first fan, the first fan and the second fan being used to exhaust air simultaneously so that the gas sucked in from the air inlet flows along the air duct to the air outlet.

[0005] In at least one embodiment of the present application, the operating power of the first fan is greater than the operating power of the second fan.

[0006] In at least one embodiment of the present application, the second fan is located at the air inlet.

[0007] In at least one embodiment of the present application, an opening area of ​​the air outlet is larger than an opening area of ​​the air inlet.

[0008] In at least one embodiment of the present application, the heat dissipation pipe is made of plastic.

[0009] In at least one embodiment of the present application, the outer wall of the heat dissipation pipe is covered with noise reduction cotton.

[0010] The second aspect of the present application provides a biochemical device, comprising: a shell, which encloses a closed space and has an opening; a heating module, which is located in the closed space; and any one of the above-mentioned heat dissipation systems, which is located in the closed space and in contact with the heating module, the air outlet is connected to the opening, and the first fan and the second fan are used to simultaneously exhaust air to dissipate heat for the heating module and the closed space.

[0011] In at least one embodiment of the present application, an extending direction of the heat dissipation pipe is consistent with an extending direction of an inner wall of the housing.

[0012] In at least one embodiment of the present application, the shell includes a first inner wall and a second inner wall connected to each other, the first inner wall and the second inner wall are perpendicular to each other; the opening is opened on the second inner wall, and the air inlet is closer to the first inner wall than the air outlet.

[0013] In at least one embodiment of the present application, a portion of the surface of the heating module is exposed in the air duct of the heat dissipation pipe.

[0014] In the above-mentioned heat dissipation system and biochemical equipment, the first fan and the second fan are used to extract air at the same time, so that the gas sucked from the air inlet flows along the air duct to the air outlet. When the heat dissipation system is applied to biochemical equipment with a closed space, the high-temperature gas in the closed space can be quickly discharged through the air duct; by discharging the high-temperature gas through the air duct, combined with the dual fan (first fan and second fan) structure, compared with the method of directly setting the exhaust fan on the shell, the cooling efficiency can be effectively improved. When the biochemical equipment is a biochemical sample processing equipment, the heat dissipation system applied to the biochemical equipment can also avoid cross-contamination of reagent samples and improve the detection accuracy of the biochemical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the biochemical equipment according to an embodiment of the present application.

[0016] Figure 2 This is a schematic structural diagram of a biochemical device according to a modified embodiment of the present application.

[0017] Main component symbols

[0018] Biochemical equipment 1

[0019] Housing 10

[0020] Enclosed Space 11

[0021] Opening 12

[0022] First inner wall 13

[0023] Second inner wall 14

[0024] Heating module 20

[0025] Cooling system 30

[0026] Heat pipe 31

[0027] Air Inlet 311

[0028] Air outlet 312

[0029] Air duct 313

[0030] Outer wall 314

[0031] First fan 32

[0032] Second fan 33

[0033] Noise reduction cotton 34

[0034] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0035] The present application provides a heat dissipation system for use in biochemical equipment. The heat dissipation system forms an air duct to guide high-temperature air out of the enclosed space of the biochemical equipment, which is beneficial to improving the heat dissipation efficiency, effectively avoiding the failure of functional modules in the biochemical equipment, and ensuring the stability and reliability of the biochemical equipment using the heat dissipation system. When the biochemical equipment is a biochemical sample processing device, the heat dissipation system can also effectively avoid cross-contamination of samples in the enclosed space.

[0036] See also Figure 1 In this embodiment, the biochemical device 1 includes a housing 10, a heating module 20 and a heat dissipation system 30. The housing 10 encloses a closed space 11, and the heating module 20 and the heat dissipation system 30 are located in the closed space 11.

[0037] The heating module 20 can be any functional module that generates heat in the biochemical device 1. In this embodiment, the biochemical device 1 is a biochemical sample processing device, and the heating module 20 can be, for example, a temperature control platform, a polymerase chain reaction (PCR) amplification instrument, etc. in the biochemical sample processing device. The heating module 20 generates heat during operation. The heat is dissipated into the air in the enclosed space 11, causing the temperature in the enclosed space 11 to rise, which is not conducive to maintaining the working stability of each functional module in the enclosed space 11.

[0038] In this embodiment, the heat dissipation system 30 extracts the high temperature gas in the closed space 11 to reduce the temperature in the closed space 11, thereby achieving heat dissipation and cooling of the heating module 20 and the closed space 11. In at least one embodiment of the present application, the closed space 11 of the biochemical device 1 may also include a larger number of heating modules. Figure 1 The positional structural relationship between a heating module 20 and a heat dissipation system 30 is shown for exemplary description.

[0039] Please continue reading Figure 1In this embodiment, the heat dissipation system 30 includes a heat dissipation pipe 31, a first fan 32, and a second fan 33. The heat dissipation pipe 31 is a hollow tubular structure as a whole, has an air inlet 311 and an air outlet 312, and forms an air duct 313 connecting the air inlet 311 and the air outlet 312. The first fan 32 and the second fan 33 are located in the air duct 313 and are spaced apart from each other. The first fan 32 is located at the air outlet 312, and the second fan 33 is located at the heating module 20. In other embodiments of the present application, the second fan 33 may also be located at the air inlet 311.

[0040] The first fan 32 and the second fan 33 are configured to work simultaneously. When the first fan 32 and the second fan 33 are working, the fan blades rotate to apply an adsorption force to the gas in the closed space 11, so that the gas in the closed space 11 enters the air duct 313 from the air inlet 311 and flows along the air duct 313 to the air outlet 312 (see FIG. Figure 1 The high-temperature gas in the enclosed space 11 is quickly discharged through the heat dissipation pipe 31, so that the temperature in the enclosed space 11 is quickly reduced, and the heat dissipation of the heating module 20 is achieved.

[0041] The above-mentioned method of exhausting high-temperature air with the help of the air duct 313 and setting two fans (the first fan 32 and the second fan 33) in the air duct 313 can effectively improve the heat dissipation and cooling efficiency compared to the method of directly setting an exhaust fan on the shell, and can also prevent the volatile gas from diffusing in the closed space 11 and causing cross-contamination of reagents.

[0042] In this embodiment, when the first fan 32 and the second fan 33 are working at the same time, the working power of the first fan 32 is greater than the working power of the second fan 33, and the rotation speed of the first fan 32 is greater than the rotation speed of the second fan 33. The first fan 32 can generate a greater force on the gas than the second fan 33, so that a negative pressure toward the air outlet 312 is generated in the air duct 313 (that is, a suction force is generated from the air inlet 311 to the air outlet 312), which is conducive to more quickly and effectively extracting the gas in the enclosed space 11 and improving the heat dissipation and cooling efficiency.

[0043] In this embodiment, the heat dissipation pipe 31 is made of plastic. The heat dissipation pipe 31 made of plastic has good heat insulation effect, reduces heat exchange, and can effectively prevent the high-temperature air entering the air duct 313 from passing through the pipe wall of the heat dissipation pipe 31 and then transferring heat back to the closed space 11. In addition, the heat dissipation pipe 31 made of plastic has lower cost and lighter weight than the heat dissipation pipe made of metal, which is conducive to controlling the cost of the heat dissipation system 30 and making the heat dissipation system 30 lightweight as a whole.

[0044] In this embodiment, the heat dissipation system 30 further includes noise reduction cotton 34 coated on the outer wall 314 of the heat dissipation pipe 31. The noise reduction cotton 34 may partially cover the outer wall 314, or may completely cover the outer wall 314. The noise reduction cotton 34 is used to reduce the exhaust noise generated during the operation of the first fan 32 and the second fan 33. In addition, the noise reduction cotton 34 is also conducive to further heat insulation, preventing the high-temperature air in the air duct 313 from passing through the pipe wall of the heat dissipation pipe 31 and then transferring the heat back to the closed space 11, which is conducive to improving the heat dissipation and cooling effect.

[0045] In this embodiment, the housing 10 is further provided with an opening 12, and the air outlet 312 is connected to the opening 12, that is, the first fan 32 is also located at the opening 12. The opening 12 is the same size as the air outlet 312, so as to avoid leakage of high-temperature air due to a gap at the position where the air outlet 312 and the opening 12 are connected. The high-temperature air from the air duct 313 is guided out of the closed space 11 through the opening 12.

[0046] In this embodiment, the air inlet 311, the air outlet 312 and the opening 12 may be circular openings. In other embodiments, the air inlet 311, the air outlet 312 and the opening 12 may be rectangular openings or openings of any other shape. In this embodiment, the air inlet 311, the air outlet 312 and the opening 12 have the same shape to simplify the manufacturing process.

[0047] In this embodiment, part of the surface of the heating module 20 faces the air duct 313. That is, part of the surface of the heating module 20 is directly exposed to the air duct 313. This is conducive to making the heat generated by the heating module 20 more convenient to be discharged through the air duct 313.

[0048] During the operation of the biochemical equipment 1, the biochemical equipment 1 Figure 1 The orientation shown is placed on the ground, a tabletop, or any other structure with a surface parallel to the ground. Figure 1 The bottom surface of the heating module 20 facing the ground is connected to the air duct 313, and the position of the air outlet 312 of the heat dissipation pipe 31 is higher than the position of the air inlet 311 (that is, when the biochemical equipment 1 is Figure 1 When the air outlet 312 is placed in a certain orientation, the minimum distance between the air outlet 312 and the ground is greater than the maximum distance between the air inlet 311 and the ground). In this way, the extension direction of the air duct 313 in the heat dissipation pipe 31 is upward as a whole (that is, from the air inlet 311 to the direction of the air outlet 312, the air duct 313 has a tendency to gradually move away from the ground). Based on the principle that high-temperature airflow diffuses upward, the extension trend of the air duct 313 in this embodiment adapts to the diffusion trend of high-temperature gas, which is conducive to quickly discharging high-temperature air in the enclosed space 11 and improving the heat dissipation and cooling efficiency.

[0049] On this basis, in this embodiment, the opening area of ​​the air outlet 312 is also larger than the opening area of ​​the air inlet 311, so that the air duct 313 in the heat dissipation pipe 31 is overall in the shape of a "trumpet", which is further conducive to quickly discharging the high-temperature air in the enclosed space 11 and improving the heat dissipation and cooling efficiency.

[0050] In this embodiment, the closed space 11 enclosed by the shell 10 is roughly a rectangular space, and the shell 10 at least includes a first inner wall 13 and a second inner wall 14 that are connected to each other and perpendicular to each other. The air inlet direction at the air inlet 311 is parallel to the first inner wall 13, and the air outlet 312 is opened on the second inner wall 14. The air inlet 311 is located at the first inner wall 13, and the air outlet 312 is located on one side of the second inner wall 14. The air inlet 311 is closer to the first inner wall 13 than the air outlet 312. That is, the vertical distance between the air inlet 311 and the first inner wall 13 is smaller than the vertical distance between the air outlet 312 and the first inner wall 13.

[0051] When the biochemical equipment 1 is Figure 1 When the air duct 313 is placed in the orientation, the first inner wall 13 is parallel to the ground and the second inner wall 14 is perpendicular to the ground. That is, along the direction from the air inlet 311 to the air outlet 312, the air duct 313 first extends in a direction parallel to the first inner wall 13, and then extends from the first inner wall 13 to the second inner wall 14 obliquely (with an angle of less than 90° with the first inner wall 13 and the second inner wall 14, respectively).

[0052] See also Figure 2 In at least one modified embodiment of the present application, the heat dissipation pipe 31 is close to the inner wall of the shell 10, and the extension direction of the heat dissipation pipe 31 is consistent with the extension direction of the inner wall of the shell 10, so that the heat dissipation pipe 31 is close to the inner wall of the shell 10, and avoids occupying the closed space 11 as much as possible, which is beneficial to the layout of various functional modules in the closed space 11.

[0053] For example, when the closed space 11 enclosed by the housing 10 is a roughly rectangular parallelepiped space, the heat dissipation pipe 31 is generally in an "L" shape, and extends successively close to the first inner wall 13 and the second inner wall 14, which is conducive to avoiding the functional modules in the closed space 11. When the heat dissipation system 30 is applied to the biochemical equipment 1, the layout of the functional modules originally existing in the closed space 11 does not need to be changed.

[0054] In other embodiments of the present application, the shape of the enclosed space 11 may be different, that is, the shape of the inner wall of the housing 10 may be different, and the extension direction of the heat dissipation pipe 31 may be kept consistent with the extension trend of the inner wall of the housing 10. For example, when the inner wall of the housing 10 is a curved surface, the heat dissipation pipe 31 may extend along the extension trend of the curved surface and always remain close to the inner wall of the housing 10. When the inner wall of the housing 10 is an inclined surface, the heat dissipation pipe 31 extends obliquely accordingly and always remains close to the inner wall of the housing 10.

[0055] In this embodiment, the biochemical device 1 is a biochemical sample processing device. During the operation of the biochemical device 1, there is a mechanical arm (not shown) that needs to be moved in the closed space 11. By setting the extension direction of the heat dissipation pipe 31 to be consistent with the extension direction of the inner wall of the shell 10 (i.e., close to the inner wall of the shell), the heat dissipation pipe 31 can be as close to (but not in contact with) the shell 10 as possible, so as to occupy as little of the closed space 11 as possible, and avoid the mechanical arm from colliding with the heat dissipation system 30 or blocking the movement trajectory of the mechanical arm during the movement in the closed space 11. Therefore, the structural design of the biochemical device 1 and the heat dissipation system 30 in this embodiment is compact and reasonable.

[0056] During the operation of the biochemical device 1, there may be many different types of reagent samples in the closed space 11. Since the closed space 11 includes multiple heating modules 20, a large amount of heat will be generated. If the high-temperature gas in the closed space 11 cannot be discharged in time, the reagent samples will evaporate too quickly. If a high-power fan is directly used for top suction or side suction exhaust, the air flow in the closed space 11 will cause cross contamination of the reagent samples, affecting the test results.

[0057] Therefore, the heat dissipation system 30 of the embodiment of the present application uses the heat dissipation pipe 31 to directly guide the high-temperature air, which can effectively dissipate heat and cool down to avoid large-scale evaporation of reagents on the one hand, and on the other hand, the high-temperature gas is discharged from the closed space 11 along the air duct 313 to avoid cross-contamination of the evaporated reagents flowing in the closed space 11. Therefore, the heat dissipation system 30 of the embodiment of the present application can effectively avoid cross-contamination of reagent samples on the basis of improving the heat dissipation and cooling efficiency, which is conducive to improving the accuracy of the detection structure.

[0058] In addition, the structure of the heat dissipation system 30 of the embodiment of the present application does not depend on the specific structure and position of the device that needs to dissipate heat, and the air inlet 311 can be placed at the heating module that needs to dissipate heat. Therefore, when the heat dissipation system 30 of the embodiment of the present application is applied to the biochemical equipment 1, there is no need to change the structural design of the heating module 20 itself, which is conducive to compatibility with heating modules 20 of various structures and has strong versatility.

[0059] Those skilled in the art should recognize that the above implementation modes are only used to illustrate the present application, and are not used as limitations on the present application. As long as they are within the essential spirit of the present application, appropriate changes and modifications made to the above embodiments are within the scope of protection claimed in the present application.

Claims

1. A heat dissipation system, characterized in that: include: A heat dissipation pipe, comprising an air inlet, an air outlet, and an air duct connecting the air inlet and the air outlet; A first fan, located in the air duct and at the air outlet; as well as The second fan is located in the air duct and is spaced apart from the first fan. The first fan and the second fan are used to exhaust air simultaneously so that the gas sucked from the air inlet flows along the air duct to the air outlet.

2. The heat dissipation system according to claim 1, characterized in that: The operating power of the first fan is greater than the operating power of the second fan.

3. The heat dissipation system according to claim 1, characterized in that: The second fan is located at the air inlet.

4. The heat dissipation system according to claim 1, characterized in that: The opening area of ​​the air outlet is larger than the opening area of ​​the air inlet.

5. The heat dissipation system according to claim 1, characterized in that: The heat dissipation pipe is made of plastic.

6. The heat dissipation system according to claim 1, characterized in that: The outer wall of the heat dissipation pipe is covered with noise reduction cotton.

7. A biochemical device, characterized in that: include: The shell is enclosed to form a closed space and has an opening; A heating module is located in the enclosed space; as well as The cooling system according to any one of claims 1 to 6 is located in the enclosed space and in contact with the heating module, the air outlet is connected to the opening, and the first fan and the second fan are used to simultaneously exhaust air to dissipate heat for the heating module and the enclosed space.

8. The biochemical device according to claim 7, characterized in that: The extending direction of the heat dissipation pipe is consistent with the extending direction of the inner wall of the shell.

9. The biochemical device according to claim 8, characterized in that: The shell comprises a first inner wall and a second inner wall connected to each other, wherein the first inner wall and the second inner wall are perpendicular to each other; The opening is formed on the second inner wall, and the air inlet is closer to the first inner wall than the air outlet.

10. The biochemical device according to claim 7, characterized in that: Part of the surface of the heating module is exposed in the air duct of the heat dissipation pipe.

Images