Method and device for cleaning inner flow channel of liquid cooling product

Abstract

The invention relates to a method and a device for cleaning an inner flow channel of a liquid-cooled product, the method sequentially comprises a flow resistance measuring process, a dynamic cleaning process and a drying process, and the liquid-cooled product is clamped on a turnover or rotatable jig; hot water is introduced into the liquid-cooled product, and an inner flow channel of the liquid-cooled product is cleaned while the liquid-cooled product rotates; and vacuumizing the inner flow channel of the cleaned liquid cooling product, and drying the inner flow channel by utilizing the low boiling point characteristic and residual temperature of vacuum water. Dynamic cleaning of the inner flow channel can be achieved, the liquid cooling product is overturned in the cleaning process, so that laminar flow formed in the inner flow channel of the liquid cooling product is disrupted, vortexes formed at corners are vibrated and dispersed, impurities such as chippings are effectively taken away, each position of the inner flow channel of the liquid cooling product is cleaned as much as possible, and the cleaning efficiency is improved. And high-cleanliness cleaning of the flow channel in the liquid cooling product is realized.

Description

Technical Field

[0001] The invention relates to the technical field of industrial cleaning equipment, and in particular to a method and device for cleaning an inner flow channel of a liquid cooling product. Background Art

[0002] Liquid cooling products are widely used in communication electronics, medical equipment, new energy vehicle batteries / control systems, energy storage equipment, military electronic control products, computer electronic products, servers / data centers and other industries. They mainly use water and other coolants to quickly remove the heat generated by the device chips, thereby achieving a rapid cooling effect. Whether the internal flow channel of the liquid cooling product is clean, whether the flow resistance is qualified, and whether there is leakage are crucial to the quality of the entire liquid cooling product. For example, cutting debris and welding debris in the processing of liquid cooling products are generally heavier than the cleaning liquid because of their density. Ordinary cleaning cannot completely clean them and remain inside the liquid cooling product, resulting in slow coolant circulation during use and affecting the liquid cooling effect. Corrosive liquids such as acids and alkalis left over from the electroplating or oxidation process often form laminar flows under ordinary cleaning due to the quiet flow of liquid inside the liquid cooling product. Vortices are also easily formed in the corners and cannot be effectively cleaned. This directly affects the life of the liquid cooling product and may even cause corrosion perforation and leakage and other safety accidents.

[0003] At present, most of the equipment for cleaning liquid cooling products on the market adopts a static cleaning method, that is, the liquid cooling product is placed on the cleaning rack, the cleaning connection hose is manually plugged in, and then the water pump is turned on and the cleaning is quietly waited for a certain period of time, and then the connection hose is unplugged, the cleaning liquid in the liquid cooling product is poured out, and then the excess cleaning liquid is blown dry with an air gun. If the requirements are high, a vacuum pump is used to absorb water vapor for a certain period of time. This cleaning method is not only ineffective, but also requires a separate device for each process. It is not only costly, but also occupies a large space and is complicated to operate, making the labor and equipment costs high. Summary of the invention

[0004] Based on this, it is necessary to provide a method and device for cleaning the inner flow channel of a liquid-cooled product to improve the cleaning effect and cleaning quality.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions.

[0006] The present invention provides a method for cleaning the inner flow channel of a liquid cooling product, which comprises a flow resistance measurement process, a dynamic cleaning process and a drying process in sequence, wherein:

[0007] The flow resistance measurement process comprises the steps of: connecting a flow detector to the water outlet of the fixture or the liquid cooling product to detect the flow resistance of the inner flow channel of the liquid cooling product;

[0008] The dynamic cleaning process includes the following steps: clamping the liquid-cooled product on a reversible or rotatable fixture; passing hot water into the liquid-cooled product to clean the inner flow channel of the liquid-cooled product while rotating;

[0009] The drying process includes the steps of: vacuuming the inner flow channel of the cleaned liquid-cooled product, and drying the inner flow channel by utilizing the low boiling point characteristics and residual temperature of water under vacuum.

[0010] In the above cleaning method, the dynamic cleaning process further comprises the steps of:

[0011] The turning axis of the jig is substantially parallel to the extending direction of the inner flow channel.

[0012] In the above cleaning method, the dynamic cleaning process further comprises the steps of:

[0013] The fixture is provided with a vibration motor, and the vibration motor continuously vibrates during the cleaning process.

[0014] In the above cleaning method, the flow resistance measurement process further comprises the steps of:

[0015] When it is detected that the flow resistance of the inner flow channel is greater than a preset value, an alarm signal is issued.

[0016] The above cleaning method also includes a leak detection process, and the leak detection process further includes: using helium to detect whether there is a leak in the inner flow channel.

[0017] The present invention also provides an inner flow channel cleaning device for a liquid-cooled product, comprising a loading and unloading station, a flow resistance measuring station, a cleaning station and a drying station, each station being provided with a fixture for clamping the liquid-cooled product, wherein the flow resistance measuring station is also connected to a flow detector at the water outlet of the fixture or the liquid-cooled product, for detecting the flow resistance of the inner flow channel of the liquid-cooled product; the cleaning station is suitable for passing hot water into the inner flow channel of the liquid-cooled product, and the fixture is suitable for rotating when cleaning the inner flow channel.

[0018] In the above cleaning device, the loading and unloading stations, flow resistance measuring station, cleaning station and drying station are arranged in a ring shape and arranged in sequence, and the fixtures of each station are installed on a workbench, and the workbench drives each fixture to rotate.

[0019] In the above cleaning device, the fixture is arranged on a driving motor, and the driving motor is suitable for driving the fixture to rotate or flip.

[0020] In the above cleaning device, a vibration motor is arranged on the jig, and the vibration motor is suitable for providing continuous vibration for the jig.

[0021] In the above cleaning device, a leakage detection station is further provided between the drying station and the loading and unloading station, and the leakage detection station is suitable for using helium to detect whether there is a leak in the inner flow channel.

[0022] The present invention adopts the above cleaning method and device to realize dynamic cleaning of the inner flow channel. Because the liquid-cooled product is turned over during the cleaning process, the laminar flow formed in the inner flow channel of the liquid-cooled product is disrupted and the vortex formed at the corner is dispersed, effectively taking away impurities such as debris, and cleaning every part of the inner flow channel of the liquid-cooled product as much as possible, so as to realize high-cleanliness cleaning of the inner flow channel of the liquid-cooled product. At the same time, the loading and unloading, dynamic cleaning and drying processes are organically integrated together, which not only effectively reduces the space occupied by the equipment, but also improves the cleaning efficiency and reduces the cost of labor and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic flow chart of a method for cleaning an inner flow channel of a liquid cooling product in Embodiment 1 of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the inner flow channel cleaning device of the liquid cooling product in the second embodiment of the present invention;

[0025] Figure 3 It is a schematic plan view of an inner flow channel cleaning device of a liquid cooling product in Embodiment 2 of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the cleaning station in the second embodiment of the present invention.

[0027] The realization of the purpose of the present invention and its functions and principles will be further explained in the specific implementation manner in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0028] The following is a further description with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1:

[0030] like Figure 1 As shown, this embodiment provides a method for cleaning the inner flow channel of a liquid cooling product, which includes a flow resistance measurement process, a dynamic cleaning process and a drying process in sequence, wherein:

[0031] The flow resistance measurement process is used to detect the flow resistance of the internal flow channel of the liquid-cooled product, including the steps of: connecting a flow meter to the water outlet of the fixture or the liquid-cooled product, and when it is detected that the flow resistance of the internal flow channel is greater than a predetermined value, it is identified as an unqualified product and an alarm signal is automatically issued, or a shutdown signal is directly issued to shut down the equipment, making it convenient for the operator to remove it and replace it with another liquid-cooled product to continue testing.

[0032] The dynamic cleaning process is used to dynamically clean the liquid-cooled product, and specifically includes the following steps: clamping the liquid-cooled product on a flippable or rotatable fixture; passing hot water into the liquid-cooled product, and cleaning the inner flow channel of the liquid-cooled product while rotating the fixture. Since the flipping action is added during the cleaning process, impurities such as debris will not be deposited, so that the impurities can be effectively removed, and efficient cleaning of the inner flow channel of the liquid-cooled product can be achieved. In this embodiment, the flipping axis of the fixture is basically parallel to the extension direction of the inner flow channel, which can further prevent the deposition of impurities. The extension direction of the inner flow channel refers to the direction from the inlet of the inner flow channel to the outlet.

[0033] In order to further improve the cleaning effect, the present embodiment is also equipped with a vibration motor on the fixture, and the vibration motor continuously vibrates during the cleaning process. The vibration disrupts the laminar flow formed in the flow channel of the liquid cooling product and disperses the vortex formed in the corner, so as to clean every corner of the liquid cooling product as much as possible.

[0034] The dynamic cleaning process of this embodiment adopts multiple high-temperature water cleaning processes to clean the product more thoroughly.

[0035] The drying process adopts the following steps: vacuum the inner flow channel of the cleaned liquid-cooled product, and use the low boiling point and residual temperature of vacuum water to dry the inner flow channel. Not only does it not require additional drying equipment and corresponding fixtures, but it also does not require secondary clamping, which greatly improves work efficiency and reduces production costs.

[0036] This embodiment also includes a leakage detection process, which further includes: using helium to detect whether there are leaks in the inner flow channel, and the products with leaks can be immediately removed and scrapped.

[0037] It can be seen that the present invention adopts the above cleaning method to achieve dynamic cleaning of the inner flow channel. Because the liquid-cooled product is turned over during the cleaning process, the laminar flow formed in the inner flow channel of the liquid-cooled product is disrupted and the vortex formed at the corner is dispersed, thereby effectively removing impurities such as debris and cleaning every part of the inner flow channel of the liquid-cooled product as much as possible, thereby achieving high-cleanliness cleaning of the inner flow channel of the liquid-cooled product.

[0038] Embodiment 2:

[0039] Reference Figure 2As shown, the present embodiment provides an inner flow channel cleaning device 100 for a liquid-cooled product 200, including a loading and unloading station 1, a flow resistance measuring station 2, a cleaning station 3 and a drying station 4, each station is provided with a flippable or rotatable fixture 10 for clamping the liquid-cooled product, wherein the flow resistance measuring station 2 is also connected to a flow detector (not shown) at the water outlet of the fixture 10 or the liquid-cooled product 200, for detecting the flow resistance of the inner flow channel of the liquid-cooled product 200, and when it is detected that the flow resistance of the inner flow channel is greater than a predetermined value (or the flow rate is less than a predetermined value), it is identified as an unqualified product and an alarm signal is automatically issued, or a shutdown signal is directly issued to shut down the equipment, so that the operator can remove it conveniently and replace it with another liquid-cooled product 200 for continued testing.

[0040] The cleaning station 3 is suitable for passing hot water into the liquid-cooled product 200, and cleaning the inner flow channel of the liquid-cooled product 200 while rotating the fixture 10. Since the flipping action is added during the cleaning process, impurities such as debris will not be deposited, so that the impurities can be effectively taken away, and efficient cleaning of the inner flow channel of the liquid-cooled product can be achieved. In this embodiment, the flip axis of the fixture 10 is basically parallel to the extension direction of the inner flow channel, which can further prevent the deposition of impurities. The extension direction of the inner flow channel refers to the direction from the inlet of the inner flow channel to the outlet.

[0041] Furthermore, the cleaning station 3 of this embodiment adopts multiple high-temperature water cleaning processes, occupying 2-3 stations, so as to clean the product more cleanly. The cleaning liquid of each cleaning process uses an independent storage box with heating function to store the cleaning liquid and is equipped with an independent water pump for extracting the cleaning liquid. A filtration system is set in the storage box to filter out impurities, and a pH detection instrument is arranged to detect the pH of the cleaning liquid. When the pH setting value is reached, it reminds to replace the cleaning liquid to ensure that the pH of the flow channel in each liquid-cooled product does not exceed the standard.

[0042] Drying station 4 is used to vacuum the inner flow channel of the cleaned liquid-cooled product, and use the low boiling point and residual temperature of water in vacuum to dry the inner flow channel, thereby removing most of the moisture and heating the product. This not only does not require additional drying equipment and corresponding fixtures, but also does not require secondary clamping, greatly improving work efficiency and reducing production costs.

[0043] like Figure 3 As shown, the loading and unloading stations 1, the flow resistance measuring station 2, the cleaning station 3 and the drying station 4 are arranged in a ring and arranged in sequence, and the fixtures 10 of each station are installed on a workbench 20, and the workbench 20 drives the fixtures 10 to rotate. This structure can realize the seamless connection of each process and continuously work, effectively improving the work efficiency.

[0044] Reference Figure 4The fixture 10 is arranged on a driving motor 30, and the driving motor 30 can drive the fixture 10 to rotate or flip. The driving motor 30 is small in size and easy to install, and is very suitable for integration into the fixture 10 and other structures.

[0045] In order to further improve the cleaning effect, the present embodiment further configures a vibration motor 40 on the fixture 10, and the vibration motor 40 continuously vibrates during the cleaning process. The function of the vibration is to disrupt the laminar flow formed in the flow channel of the liquid cooling product 200 and disperse the vortex formed at the corner, so as to clean every corner inside the liquid cooling product 200 as much as possible.

[0046] In addition, a leakage detection station 5 (such as Figure 3 ), the leakage detection station 5 is used to use helium to detect whether there are leaks in the inner flow channel, and the products with leaks can be immediately removed and scrapped.

[0047] In summary, the present invention adopts the above cleaning method and device to achieve dynamic cleaning of the inner flow channel. Because the liquid-cooled product is turned over during the cleaning process, the laminar flow formed in the inner flow channel of the liquid-cooled product is disrupted and the vortex formed in the corner is dispersed, effectively taking away impurities such as debris, and cleaning every part of the inner flow channel of the liquid-cooled product as much as possible, achieving high-cleanliness cleaning of the inner flow channel of the liquid-cooled product. At the same time, the loading and unloading, dynamic cleaning and drying processes are organically integrated into one device, which not only effectively reduces the space occupied by the equipment, but also improves the cleaning efficiency and reduces the cost of labor and equipment.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for cleaning the inner flow channel of a liquid cooling product, characterized in that: It includes flow resistance measurement process, dynamic cleaning process and drying process in sequence, among which: The flow resistance measurement process comprises the steps of: connecting a flow detector to the water outlet of the fixture or the liquid cooling product to detect the flow resistance of the inner flow channel of the liquid cooling product; The dynamic cleaning process includes the following steps: clamping the liquid-cooled product on a reversible or rotatable fixture; passing hot water into the liquid-cooled product to clean the inner flow channel of the liquid-cooled product while rotating; The drying process includes the steps of: vacuuming the inner flow channel of the cleaned liquid-cooled product, and drying the inner flow channel by utilizing the low boiling point characteristics and residual temperature of water under vacuum.

2. The cleaning method according to claim 1, characterized in that The dynamic cleaning process further comprises the steps of: The turning axis of the jig is substantially parallel to the extending direction of the inner flow channel.

3. The cleaning method according to claim 1, characterized in that The dynamic cleaning process further comprises the steps of: The fixture is provided with a vibration motor, and the vibration motor continuously vibrates during the cleaning process.

4. The cleaning method according to claim 1, characterized in that: The flow resistance measurement process further comprises the steps of: When it is detected that the flow resistance of the inner flow channel is greater than a preset value, an alarm signal is issued.

5. The cleaning method according to claim 1, characterized in that: It also includes a leak detection process, which further includes: using helium to detect whether there is a leak in the inner flow channel.

6. An inner flow channel cleaning device for a liquid cooling product, characterized in that: It includes loading and unloading stations, flow resistance measuring stations, cleaning stations and drying stations. Each station is provided with a flippable or rotatable fixture for clamping the liquid-cooled product. The flow resistance measuring station is also connected to a flow meter at the water outlet of the fixture or the liquid-cooled product to detect the flow resistance of the inner flow channel of the liquid-cooled product. The cleaning station is suitable for passing hot water into the inner flow channel of the liquid-cooled product, and the fixture is suitable for rotating when cleaning the inner flow channel.

7. The cleaning device according to claim 6, characterized in that: The loading and unloading stations, flow resistance measuring station, cleaning station and drying station are arranged in a ring shape and arranged in sequence, and the fixtures of each station are installed on a workbench, and the workbench drives each fixture to rotate.

8. The cleaning device according to claim 6, characterized in that: The fixture is arranged on a driving motor, and the driving motor is suitable for driving the fixture to rotate or flip.

9. The cleaning device according to claim 6, characterized in that: A vibration motor is arranged on the fixture, and the vibration motor is suitable for providing continuous vibration for the fixture.

10. The cleaning device according to claim 6, characterized in that: A leakage detection station is also arranged between the drying station and the loading and unloading station, and the leakage detection station is suitable for using helium to detect whether there is a leak in the inner flow channel.

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