Water cooling mechanism
By designing the flow channel structure of the water cooling mechanism and adopting a multi-rib combined channel, the problem of uneven cooling of the serpentine flow channel is solved, and the temperature stability and heat dissipation efficiency of the PCR instrument are improved.
Patent Information
- Application Number
- CN202422379343.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The serpentine flow channel of the existing water-cooling plate causes cooling unevenness and large pressure loss along the flow path, affecting the temperature stability and heat dissipation efficiency of the PCR instrument.
A water cooling mechanism is designed, which adopts a combined structure of a first flow channel, a second flow channel and a third flow channel. Multiple rib plate units cooperate with mounting components to form multiple channels to achieve uniform flow of coolant and heat dissipation.
It achieves uniform cooling of the PCR instrument, reduces pressure loss along the process, and improves temperature stability and heat dissipation efficiency.
Smart Images
Figure CN223428727U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heat dissipation devices, and in particular to a water cooling mechanism. Background Art
[0002] The water cooling mechanism is a key component for temperature control in a PCR instrument. It is usually used to dissipate heat and maintain the temperature stability required during the PCR process, and has a direct impact on the efficiency and accuracy of DNA amplification and detection.
[0003] Compared to traditional air-cooling technology, water-cooled plates offer numerous advantages, including high heat exchange efficiency, low noise, and rapid temperature reduction. Therefore, most PCR instruments currently use water-cooled plates for heat dissipation. However, the flow paths of current water-cooled plates are often serpentine, connected in series. These long paths not only result in significant pressure loss along the path, but also lead to uneven cooling across the upstream and downstream channels. Utility Model Content
[0004] Based on this, it is necessary to provide a water cooling mechanism to address the problem of uneven cooling of the serpentine flow channel.
[0005] A water cooling mechanism, comprising:
[0006] An installation assembly having a heat dissipation cavity therein, and a liquid inlet and a liquid outlet communicated with the heat dissipation cavity;
[0007] The cooling assembly includes a first rib group and a second rib group, the first rib group and the second rib group being symmetrically arranged in the heat dissipation cavity about a center line between the liquid inlet and the liquid outlet, a first flow channel being defined between the first rib group and the second rib group, a second flow channel being defined between a side of the first rib group facing away from the second rib group and a first inner wall of the mounting assembly, and a third flow channel being defined between a side of the second rib group facing away from the first rib group and a second inner wall of the mounting assembly;
[0008] The first rib group includes a plurality of first rib monomers spaced apart along the direction of the center line, and the second rib group includes a plurality of second rib monomers spaced apart along the direction of the center line.
[0009] In one embodiment, the width of the first flow channel along the direction perpendicular to the center line gradually decreases as the distance between the first flow channel and the liquid outlet decreases, the width of the second flow channel along the direction perpendicular to the center line gradually increases as the distance between the second flow channel and the liquid outlet decreases, and the width of the third flow channel along the direction perpendicular to the center line gradually increases as the distance between the second flow channel and the liquid outlet decreases.
[0010] In one embodiment, the cooling assembly further includes a third rib monomer, which is disposed in the heat dissipation cavity and is spaced apart from the first rib group and the second rib group along the direction of the center line. A fourth flow channel is provided between the third rib monomer and the first inner wall, and a fifth flow channel is provided between the third rib monomer and the second inner wall.
[0011] In one embodiment, along a direction perpendicular to the center line, the width of the fourth flow channel is greater than the width of the second flow channel, and the width of the fifth flow channel is greater than the width of the third flow channel.
[0012] In one embodiment, the cooling assembly also includes two fourth rib monomers, which are symmetrically arranged in the heat dissipation cavity along the direction of the center line, one of the fourth rib monomers has a sixth flow channel with the first inner wall, the other fourth rib monomer has a seventh flow channel with the second inner wall, and the two fourth rib monomers have an eighth flow channel.
[0013] In one embodiment, along a direction perpendicular to the center line, the width of the fourth flow channel is greater than the width of the sixth flow channel, and the width of the fifth flow channel is greater than the width of the seventh flow channel.
[0014] In one embodiment, the first rib plate unit is arranged perpendicular to the direction of the center line, and the second rib plate unit is arranged perpendicular to the direction of the center line.
[0015] In one embodiment, the first inner wall is parallel to the direction of the center line, and the second inner wall is parallel to the direction of the center line.
[0016] In one embodiment, the mounting assembly includes a base and a cover plate. The base is provided with a heat dissipation groove. The cover plate is arranged on the base and cooperates with the heat dissipation groove to form the heat dissipation cavity.
[0017] In one embodiment, the liquid inlet and the liquid outlet are both arranged on the cover plate.
[0018] The above-mentioned water cooling mechanism is configured with a first flow channel, a second flow channel and a third flow channel, and the first flow channel and the second flow channel are connected by a plurality of channels formed by the cooperation of a plurality of first rib monomers and the mounting assembly, and the second flow channel and the third flow channel are connected by a plurality of channels formed by the cooperation of a plurality of second rib monomers and the mounting assembly, so that the liquid entering the heat dissipation cavity through the liquid inlet can be output to the liquid outlet through the first flow channel, the second flow channel, the third flow channel, the channels between the plurality of first rib monomers and the channels between the plurality of second rib monomers, so as to achieve uniform cooling and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic structural diagram of the water cooling mechanism of some embodiments of the present application.
[0020] Figure 2 This is a schematic structural diagram of the base and cooling assembly of the water cooling mechanism in some embodiments of the present application.
[0021] Figure 3 This is a schematic structural diagram of the base and cooling assembly of the water cooling mechanism of some embodiments of the present application from another perspective.
[0022] Figure 4 This is a schematic structural diagram of the cover plate of the water cooling mechanism in some embodiments of the present application.
[0023] Reference numerals:
[0024] 1. Mounting assembly; 11. Base; 12. Cover; 13. Liquid inlet; 14. Liquid outlet; 15. First inner wall; 16. Second inner wall;
[0025] 2. Cooling components;
[0026] 21. First rib group; 211. First rib unit; 212. First channel;
[0027] 22, second rib group; 221, second rib unit; 222, second channel;
[0028] 23. The third rib unit;
[0029] 24. The fourth rib unit;
[0030] 3. Flow channel structure; 31. First flow channel; 32. Second flow channel; 33. Third flow channel; 34. Fourth flow channel; 35. Fifth flow channel; 36. Sixth flow channel; 37. Seventh flow channel; 38. Eighth flow channel. DETAILED DESCRIPTION
[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0032] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.
[0033] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.
[0034] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0035] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on" or "below" the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0036] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.
[0037] Polymerase chain reaction (PCR) is a molecular biology technique used to amplify specific DNA fragments. PCR utilizes the fact that DNA denatures into single strands at 95°C in vitro. At lower temperatures (usually around 60°C), primers bind to the single strands based on base pairing. The temperature is then adjusted to the optimal reaction temperature for DNA polymerase (around 72°C), where the enzyme synthesizes the complementary strand along the phosphate-to-pentose chain. PCR generally relies on a PCR instrument to control the temperature and heating duration of each reaction stage.
[0038] Since air cooling has the disadvantage of low heat dissipation efficiency, water cooling mechanisms are currently used to cool PCR instruments to maintain the temperature stability required during the PCR process. The water cooling mechanism uses a metal plate set between the heat-generating electronic device and the cooling liquid, so that the electronic device can transfer heat to the metal plate through heat conduction, and to a certain extent, it has the effect of equalizing the temperature. At the same time, the metal plate is designed with flow channels of different structures inside, and the coolant forms convection heat exchange between the flow channel and the metal plate, thereby indirectly removing the heat and power consumption of the electronic device. However, the flow channels in the current water cooling mechanism are mostly serpentine flow channels connected in series, and the flow channel length is relatively long, which will not only cause a large pressure loss along the process, but also lead to uneven cooling effects upstream and downstream of the flow channel.
[0039] Therefore, the present application provides a water cooling mechanism that solves the problem of uneven cooling of serpentine flow channels through a new flow channel structure setting.
[0040] See Figure 1-Figure 3 One embodiment of the present application provides a water cooling mechanism, including a mounting assembly 1 and a cooling assembly 2. The mounting assembly 1 is used to contain coolant, and the cooling assembly 2 is disposed within the mounting assembly 1. A flow channel structure 3 for coolant circulation is formed between the cooling assembly 2 and the mounting assembly 1, so that the coolant can flow through the mounting assembly 1 through the flow channel structure 3 to achieve cooling and heat dissipation of the mounting assembly 1.
[0041] In the specific configuration, the mounting assembly 1 is provided with a heat dissipation cavity, and a liquid inlet 13 and a liquid outlet 14 connected to the heat dissipation cavity. The coolant can enter the heat dissipation cavity through the liquid inlet 13 and be output through the liquid outlet 14 after heat dissipation and cooling.
[0042] Specifically, see Figure 1 and Figure 4 The mounting assembly 1 includes a base 11 and a cover 12. The base 11 is provided with a heat dissipation groove. The cover 12 is mounted on the base 11 and cooperates with the heat dissipation groove to form a heat dissipation cavity. More specifically, the cover 12 is positioned within the notch of the heat dissipation groove. The liquid inlet 13 and the liquid outlet 14 are both provided on the cover 12.
[0043] See Figure 1-Figure 3 The cooling assembly 2 includes a first rib group 21 and a second rib group 22, which are symmetrically arranged within the heat dissipation cavity relative to the center line connecting the liquid inlet 13 and the liquid outlet 14. A first flow channel 31 is defined between the first and second rib groups 21 and 22. A second flow channel 32 is defined between the side of the first rib group 21 facing away from the second rib group 22 and the first inner wall 15 of the mounting assembly 1. A third flow channel 33 is defined between the side of the second rib group 22 facing away from the first rib group 21 and the second inner wall 16 of the mounting assembly 1. Coolant entering the heat dissipation cavity through the liquid inlet 13 can flow into the liquid outlet 14 through the first flow channel 31, the second flow channel 32, and the third flow channel 33, respectively, for output through the liquid outlet 14.
[0044] The first rib group 21 includes a plurality of first rib units 211 spaced apart along a center line. A plurality of first channels 212 connecting the first flow channels 31 and the second flow channels 32 are formed between the mounting assembly 1 and the plurality of first rib units 211. The second rib group 22 includes a plurality of second rib units 221 spaced apart along a center line. A plurality of second channels 222 connecting the second flow channels 32 and the third flow channels 33 are formed between the mounting assembly 1 and the plurality of second rib units 221.
[0045] In summary, when the water cooling mechanism of the present application is in use, the coolant can be input into the heat dissipation cavity of the installation component 1 through the liquid inlet 13. After entering the heat dissipation cavity, the coolant can be divided into multiple parts and output to the liquid outlet 14 through the first flow channel 31, the second flow channel 32, the third flow channel 33, multiple first channels 212 and multiple second channels 222, so as to be output through the liquid outlet 14. The water cooling mechanism of the present application is configured by setting a first flow channel 31, a second flow channel 32 and a third flow channel 33, and making the first flow channel 31 and the second flow channel 32 connected by a plurality of first channels 212 formed by the cooperation of a plurality of first rib monomers 211 and the mounting assembly 1, and making the second flow channel 32 and the third flow channel 33 connected by a plurality of second channels 222 formed by the cooperation of a plurality of second rib monomers 221 and the mounting assembly 1, so that the liquid entering the heat dissipation cavity through the liquid inlet 13 can be output to the liquid outlet 14 through the first flow channel 31, the second flow channel 32, the third flow channel 33, the channels between the plurality of first rib monomers 211 and the channels between the plurality of second rib monomers 221, so as to achieve uniform cooling and heat dissipation.
[0046] See Figure 1-Figure 3 In one embodiment, the first inner wall 15 is parallel to the direction of the center line, and the second inner wall 16 is parallel to the direction of the center line. Specifically, the cooling assembly 2 has a first inner wall 15 and a second inner wall 16 spaced apart in a direction perpendicular to the center line.
[0047] In one embodiment, the first rib unit 211 is arranged perpendicular to the center line, and the second rib unit 221 is arranged perpendicular to the center line. Specifically, the first rib unit 211 is arranged perpendicular to the first inner wall 15, and the second rib unit 221 is arranged perpendicular to the second inner wall 16.
[0048] In one embodiment, the width of the first flow channel 31 along the direction perpendicular to the center line gradually decreases as the distance from the liquid outlet 14 decreases, the width of the second flow channel 32 along the direction perpendicular to the center line gradually increases as the distance from the liquid outlet 14 decreases, and the width of the third flow channel 33 along the direction perpendicular to the center line gradually increases as the distance from the liquid outlet 14 decreases. Due to the above structure, as the coolant flows from the liquid inlet 13 to the liquid outlet 14 along the direction of the center line, the first flow channel 31 gradually narrows, while the second flow channel 32 and the third flow channel 33 gradually expand. This allows the coolant in the first flow channel 31 to flow to the second flow channel 32 and the third flow channel 33 through the multiple first channels 212 and the second channel 222, thereby more evenly removing heat from the water cooling mechanism.
[0049] Specifically, the first rib group 21 is arranged obliquely to the first inner wall 15, and the distance between the first rib group 21 and the first inner wall 15 gradually increases as the distance between the first rib group 21 and the liquid outlet 14 decreases. The second rib group 22 is arranged obliquely to the second inner wall 16, and the distance between the second rib group 22 and the second inner wall 16 gradually increases as the distance between the second rib group 22 and the liquid outlet 14 decreases. The distance between the second rib group 22 and the first rib group 21 gradually decreases as the distance between the second rib group 22 and the liquid outlet 14 decreases. By gradually narrowing the first flow channel 31 and gradually expanding the second flow channel 32 and the third flow channel 33, the coolant in the first flow channel 31 can more easily flow through the multiple first channels 212 and the second channel 222 to the second flow channel 32 and the third flow channel 33, thereby more evenly removing the heat from the water cooling mechanism.
[0050] See Figure 1-Figure 3In one embodiment, the cooling assembly 2 further includes a third rib unit 23 disposed within the heat dissipation cavity and spaced apart from both the first rib group 21 and the second rib group 22 along the center line. A fourth flow channel 34 is defined between the third rib unit 23 and the first inner wall 15, and a fifth flow channel 35 is defined between the third rib unit 23 and the second inner wall 16. This structure allows the third rib unit 23 to block the first flow channel 31, allowing coolant flowing through the first flow channel 31 to flow through one side of the third rib unit 23 and merge with the coolant in the second flow channel 32 and the third flow channel 33. Finally, the coolant converges to the other side of the third rib unit 23 through the fourth flow channel 34 and the fifth flow channel 35 on both sides, and is discharged through the outlet.
[0051] Specifically, along a direction perpendicular to the center line, the width of the fourth flow channel 34 is greater than the width of the second flow channel 32, so that the coolant in the second flow channel 32 can quickly merge with the coolant flowing through one side of the third rib unit 23 in the fourth flow channel 34. The width of the fifth flow channel 35 is greater than the width of the third flow channel 33, so that the coolant in the third flow channel 33 can quickly merge with the coolant flowing through one side of the third rib unit 23 in the fifth flow channel 35.
[0052] See Figure 1-Figure 3 In one embodiment, the cooling assembly 2 further includes two fourth rib units 24, which are symmetrically arranged within the heat dissipation cavity along a center line. A sixth flow channel 36 is defined between one of the fourth rib units 24 and the first inner wall 15, a seventh flow channel 37 is defined between the other fourth rib unit 24 and the second inner wall 16, and an eighth flow channel 38 is defined between the two fourth rib units 24. This structure allows coolant in the fourth flow channel 34 to flow into the eighth flow channel 38 via the sixth flow channel 36 and both sides of one of the fourth rib units 24, and allows coolant in the fifth flow channel 35 to flow into the eighth flow channel 38 via the seventh flow channel 37 and both sides of the other fourth rib unit 24. This effectively utilizes the coolant and achieves uniform cooling of the mounting assembly 1.
[0053] Specifically, along a direction perpendicular to the center line, the width of the fourth flow channel 34 is greater than the width of the sixth flow channel 36. By reducing the flow channel width, the flow rate of the coolant is accelerated, thereby quickly removing heat from the installation component 1. The width of the fifth flow channel 35 is greater than the width of the seventh flow channel 37. By reducing the flow channel width, the flow rate of the coolant is accelerated, thereby quickly removing heat from the installation component 1.
[0054] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, it is to be understood that the application embraces all such possible combinations.
[0055] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A water cooling mechanism, characterized in that: include: An installation assembly having a heat dissipation cavity therein, and a liquid inlet and a liquid outlet communicated with the heat dissipation cavity; The cooling assembly includes a first rib group and a second rib group, the first rib group and the second rib group being symmetrically arranged in the heat dissipation cavity about a center line between the liquid inlet and the liquid outlet, a first flow channel being defined between the first rib group and the second rib group, a second flow channel being defined between a side of the first rib group facing away from the second rib group and a first inner wall of the mounting assembly, and a third flow channel being defined between a side of the second rib group facing away from the first rib group and a second inner wall of the mounting assembly; The first rib group includes a plurality of first rib monomers spaced apart along the direction of the center line, and the second rib group includes a plurality of second rib monomers spaced apart along the direction of the center line.
2. The water cooling mechanism according to claim 1, characterized in that: The width of the first flow channel along the direction perpendicular to the center line gradually decreases as the distance between the first flow channel and the liquid outlet decreases, the width of the second flow channel along the direction perpendicular to the center line gradually increases as the distance between the second flow channel and the liquid outlet decreases, and the width of the third flow channel along the direction perpendicular to the center line gradually increases as the distance between the second flow channel and the liquid outlet decreases.
3. The water cooling mechanism according to claim 1, characterized in that: The cooling assembly also includes a third rib monomer, which is arranged in the heat dissipation cavity and is spaced apart from the first rib group and the second rib group along the direction of the center line. A fourth flow channel is provided between the third rib monomer and the first inner wall, and a fifth flow channel is provided between the third rib monomer and the second inner wall.
4. The water cooling mechanism according to claim 3, characterized in that: Along a direction perpendicular to the center line, the width of the fourth flow channel is greater than the width of the second flow channel, and the width of the fifth flow channel is greater than the width of the third flow channel.
5. The water cooling mechanism according to claim 3, characterized in that: The cooling assembly also includes two fourth rib monomers, which are symmetrically arranged in the heat dissipation cavity along the direction of the center line, one of the fourth rib monomers has a sixth flow channel with the first inner wall, the other fourth rib monomer has a seventh flow channel with the second inner wall, and the two fourth rib monomers have an eighth flow channel.
6. The water cooling mechanism according to claim 5, characterized in that: Along a direction perpendicular to the center line, the width of the fourth flow channel is greater than the width of the sixth flow channel, and the width of the fifth flow channel is greater than the width of the seventh flow channel.
7. The water cooling mechanism according to claim 1, characterized in that: The first rib plate monomer is arranged perpendicular to the direction of the center line, and the second rib plate monomer is arranged perpendicular to the direction of the center line.
8. The water cooling mechanism according to claim 1, characterized in that: The first inner wall is parallel to the direction of the center line, and the second inner wall is parallel to the direction of the center line.
9. The water cooling mechanism according to claim 1, wherein: The mounting assembly includes a base and a cover plate. The base is provided with a heat dissipation groove. The cover plate is arranged on the base and cooperates with the heat dissipation groove to form the heat dissipation cavity.
10. The water cooling mechanism according to claim 9, characterized in that: The liquid inlet and the liquid outlet are both arranged on the cover plate.