Liquid supplementing device, liquid cooling circulating device and energy storage converter
By designing a combination of a replenishment tank, an expansion cap, and an exhaust pipe, the problems of liquid replenishment, spraying, and unstable pressure in the liquid cooling system were solved, achieving automatic replenishment and stable system pressure operation, simplifying the operation process, and reducing system complexity and cost.
Patent Information
- Application Number
- CN202422346369.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-09-25
AI Technical Summary
Existing liquid cooling systems are prone to liquid spraying during replenishment, have complex structures, large size, heavy weight, and high cost, and are difficult to achieve automatic replenishment, resulting in unstable system pressure and affecting cooling performance.
A liquid replenishment device was designed, including a liquid replenishment tank and an expansion cap, equipped with a pressure relief valve and an on/off valve, forming a grid structure inside the water storage chamber, with an inclined liquid inlet, combined with an exhaust pipe and a gas-liquid separator, to achieve automatic liquid replenishment and gas discharge, and prevent liquid spraying.
This simplifies the liquid replenishment process and stabilizes the system pressure, reduces the risk of liquid spraying, improves the compactness and ease of maintenance of the liquid cooling system, and reduces system complexity and cost.
Smart Images
Figure CN223584537U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid cooling technical field, concretely relates to a liquid supplementing device, liquid cooling circulating device and energy storage converter. BACKGROUND
[0002] The heat exchange capacity of the liquid cooling system is strong, and the liquid cooling system is widely applied in multiple fields. For the cooling liquid circulation, the cooling liquid will inevitably evaporate and leak over time during operation, and there will be residual gas during vacuum extraction. In order to ensure the cooling effect, it is necessary to supplement the liquid in time, so a water tank, a liquid supplementing pump and a check valve are arranged in the liquid cooling system to supplement the liquid in the pipeline. The existing liquid cooling system has the disadvantages of complex structure, large volume, large weight and high cost, which leads to low power density, complex system maintenance, regular maintenance of the liquid supplementing pump, and frequent liquid supplementing operation of the water tank with insufficient capacity. The liquid supplementing signal usually comes from the system low pressure alarm, and then the liquid supplementing pump performs the liquid supplementing operation. However, after the system runs for a long time, there will be dirty blockage, such as dirt in the filter, which will cause the pressure drop of the filter to increase, resulting in a high system pressure and detection errors. That is to say, even if the system is short of liquid, it may not report a low pressure alarm, so that automatic liquid supplementing cannot be realized. Moreover, the space inside the system is limited, and the liquid inlet of the water tank is inside the system, so it is difficult to supplement the liquid.
[0003] Therefore, in order to automatically supplement the liquid when the liquid is short, the expansion tank and the water tank are combined to form a liquid supplementing device in the prior art, and the liquid supplementing pump is removed. The liquid supplementing device is usually set high so that the liquid supplementing device can supplement the liquid in the pipeline under the action of gravity. The liquid supplementing device is provided with a pressure relief valve. It is found in practice that when manually supplementing the liquid in the liquid supplementing device, the liquid supplementing device is easy to spray liquid outward after being opened, and the liquid supplementing operation is not convenient. UTILITY MODEL CONTENT
[0004] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a liquid supplementing device, liquid cooling circulating device and energy storage converter, which is not easy to spray liquid when manually supplementing the liquid.
[0005] To achieve the above-mentioned purpose, the utility model and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:
[0006] The technical solution one and related embodiments thereof provide a liquid supplementing device for supplementing liquid to a liquid cooling circulation pipeline, wherein the liquid cooling circulation pipeline is provided with a liquid supplementing port; the liquid supplementing device comprises a liquid supplementing member, an expansion cover, a liquid supplementing pipe, and a liquid supplementing tank; the liquid supplementing member comprises the liquid supplementing tank and the expansion cover; the liquid supplementing tank is provided with a water storage cavity, a liquid supplementing opening corresponding to the top of the water storage cavity, and a liquid supplementing port located at the bottom end of the water storage cavity; the water storage cavity is configured such that the highest water level of liquid in the water storage cavity is greater than a first value from the top end of the water storage cavity; the expansion cover is detachably arranged at the liquid supplementing opening and is provided with a pressure relief valve; the liquid supplementing port is higher than the liquid supplementing port; and the liquid supplementing pipe is used to connect the liquid supplementing port and the liquid supplementing port and is provided with an opening and closing valve, which is adapted to be closed when the liquid supplementing opening is opened and to be opened when the liquid supplementing opening is closed.
[0007] Based on the technical solution one, the technical solution two is also provided, and in the technical solution two and related embodiments thereof, a grid structure is formed in the water storage cavity, the grid structure is located between the liquid supplementing opening and the liquid supplementing port in the vertical direction, at least two liquid passing openings are arranged on the grid structure in the vertical direction and staggered in the horizontal direction, and the liquid supplementing opening is connected to the liquid supplementing port through the liquid passing openings.
[0008] Based on the technical solution two, the technical solution three is also provided, and in the technical solution three and related embodiments thereof, the liquid supplementing tank is provided with a top wall corresponding to the top end of the water storage cavity, the liquid supplementing opening is lower than the top wall and is arranged to be inclined relative to the vertical direction.
[0009] Based on the technical solution three, the technical solution four is also provided, and in the technical solution four and related embodiments thereof, the first end of the liquid supplementing pipe penetrates into the water storage cavity through the liquid supplementing port; and the water storage cavity is further configured such that the lowest water level of liquid in the water storage cavity is higher than the first end of the liquid supplementing pipe and the distance therebetween is less than a second value.
[0010] The technical solution five and related embodiments thereof provide a liquid cooling circulation device, which comprises a liquid cooling circulation pipeline provided with a liquid supplementing port and a liquid supplementing device as described in any one of the technical solutions one to four.
[0011] Based on the technical solution five, the technical solution six is also provided, and in the technical solution six and related embodiments thereof, a first branch pipe is further included; the liquid supplementing port connected to the liquid supplementing pipe is defined as a first liquid supplementing port; the liquid cooling circulation pipeline is further provided with a second liquid supplementing port; the liquid supplementing tank is further provided with an overflow port corresponding to the top of the water storage cavity; and the first branch pipe is used to connect the overflow port and the second liquid supplementing port.
[0012] Based on the technical solution six, the technical solution seven is also provided, and in the technical solution seven and related embodiments thereof, the liquid supplementing tank is further provided with a liquid discharging section extending in the horizontal direction; one end of the liquid discharging section is connected to the overflow port, and the other end is connected to the first branch pipe; and a first branch valve is further connected in series to the first branch pipe, which is adapted to be closed when the liquid supplementing opening is opened and to be opened when the liquid supplementing opening is closed.
[0013] Based on technical solution seven, there is also technical solution eight, and in technical solution eight and its related embodiments, a circulating pump and an exhaust pipeline are further included; the liquid cooling circulation pipeline is provided with a liquid supply port and a liquid return port for external connection, a switch valve is connected in series between the liquid supply port and the liquid return port, the switch valve is adapted to be closed before the first liquid injection and opened after the liquid injection is completed; the circulating pump is connected in series between the switch valve and the liquid supply port and is used to drive the cooling liquid to flow from the liquid return port to the liquid supply port; the exhaust pipeline is connected in parallel at both ends of the switch valve, and a gas-liquid separator is connected in series on the exhaust pipeline, and the top end of the gas-liquid separator is provided with an exhaust valve.
[0014] Based on technical solution eight, there is also technical solution nine, and in technical solution nine and its related embodiments, the first liquid supplement port and the second liquid supplement port are respectively located at both ends of the switch valve.
[0015] Technical solution ten and its related embodiments provide a kind of energy storage converter, including liquid cooling power module and the liquid cooling circulating device as described in any one of technical solutions five to nine, the liquid cooling power module includes power switch tube and the liquid cooling plate for heat dissipation of the power switch tube, the liquid cooling plate is communicated with the liquid cooling circulating device.
[0016] From the above description of the utility model and its preferred embodiments, compared with the prior art, the technical solutions and preferred embodiments of the utility model have the following beneficial effects due to the use of the following technical means:
[0017] Applicant knows through continuous observation, experiment and research that in the prior art, the reason for causing the technical problem of "when manually supplementing liquid into the liquid supplement, the liquid supplement is easy to spray liquid outward after opening" is that because a circulating pump is arranged on the liquid cooling circulation pipeline, positive pressure is formed when the circulating pump operates and liquid is discharged, and negative pressure is formed when liquid is sucked, and the liquid sucked by negative pressure is easy to have air bubbles and easy to form cavitation. In order to avoid cavitation, positive pressure is formed in the liquid cooling circulation pipeline when liquid is injected in the liquid cooling circulation pipeline, so that the pump also has positive pressure when sucking liquid, to offset the negative pressure of sucking liquid. However, in this way, positive pressure exists in the liquid cooling circulation pipeline when it does not work, and therefore positive pressure exists in the liquid supplement. Therefore, when the liquid supplement is opened, the pressure of the entire liquid cooling circulation pipeline will be discharged through the liquid inlet of the liquid supplement and sprayed outward, and liquid needs to be supplemented into the liquid supplement when the pressure in the liquid supplement and the atmospheric pressure are balanced, which is extremely inconvenient to add liquid.
[0018] In the technical solution one and the preferred embodiments thereof, when the pipe pressure of the liquid cooling circulation pipeline is relatively large during normal operation of the liquid cooling circulation pipeline, the pipe pressure of the liquid cooling circulation pipeline can flow to the liquid supplementing member, the liquid level of the liquid supplementing member rises and squeezes the gas above the liquid, so that the pressure relief valve of the expansion cover opens, that is, the pressure relief valve on the expansion cover can realize pressure relief of the liquid cooling circulation pipeline, preventing the pipe pressure of the liquid cooling circulation pipeline from being too large, and when the pressure of the liquid cooling circulation pipeline is relatively small, the liquid supplementing member can supplement liquid to the liquid supplementing port under the action of the gravity of the liquid and the pressure of the pressure relief valve, so that the liquid supplementing member integrates the functions of the liquid supplementing tank and the expansion tank, ensures that the pipe of the liquid cooling circulation pipeline operates under a relatively stable pressure, and makes the structure of the liquid cooling circulation device compact and simple. After the liquid cooling circulation pipeline operates for a period of time, the liquid supplementing member supplements liquid to the liquid cooling circulation pipeline, and when the liquid in the liquid supplementing member is relatively small, liquid needs to be supplemented to the liquid supplementing member. In the technical solution, the storage cavity is configured such that the distance between the highest water level in the liquid in the storage cavity and the top end thereof is greater than a first value, so that there is sufficient space between the highest water level of the liquid in the storage cavity and the top end thereof. The liquid supplementing pipe is used to communicate the liquid supplementing port and the liquid supplementing port, and a start-stop valve is arranged on the liquid supplementing pipe. The start-stop valve is suitable for being closed when the liquid supplementing port is opened. Therefore, before liquid is added to the liquid supplementing member, the start-stop valve can be closed first, and then the liquid supplementing port is opened. The pressure of the liquid released outward by the liquid supplementing member is generally the pressure of the liquid between the liquid supplementing port and the current liquid level of the liquid in the storage cavity, usually the pressure of the liquid between the liquid supplementing port and the lowest water level of the liquid in the storage cavity, and at most the pressure of the liquid between the liquid supplementing port and the highest water level of the liquid in the storage cavity. The pressure is relatively small, and since the storage cavity is configured such that there is sufficient space between the highest water level of the liquid in the storage cavity and the top end thereof, when the start-stop valve is closed and the liquid supplementing port is opened, the pressure of the liquid in the liquid supplementing member is small, and the liquid supplementing member can be released in the space between the current water level of the liquid in the storage cavity and the top end of the storage cavity, and is not easy to be sprayed out through the liquid supplementing port, and the release time is short. After the expansion cover is opened, the water pressure in the liquid supplementing member balances with the atmospheric pressure outside after a short waiting time, and then liquid can be added to the liquid supplementing member, so that the liquid supplementing operation is simple. After the liquid supplementing is completed, the start-stop valve can be opened, and the liquid supplementing device can ensure that the pipe of the liquid cooling circulation pipeline operates under a relatively stable pressure.
[0019] In the technical solution two and the preferred embodiments thereof, a grid structure is formed in the storage cavity, the grid structure is located between the liquid supplementing port and the liquid supplementing port in the vertical direction, at least two liquid passing ports that are arranged in the vertical direction and staggered in the horizontal direction are arranged on the grid structure, and the liquid supplementing port is communicated with the liquid supplementing port through the liquid passing ports. On the one hand, the grid structure can increase the strength of the liquid supplementing member, and on the other hand, the grid structure forms a labyrinth waterway between the liquid supplementing port and the liquid supplementing port, so that when the liquid supplementing port is opened, the water flow resistance is large, and the water in the storage cavity is not easy to be sprayed out.
[0020] In the third aspect and the preferred embodiments thereof, the liquid adding opening is arranged below the top wall and inclined relative to the vertical direction. Compared with the case where the liquid adding opening is arranged on the top wall, the water in the water storage cavity is less likely to be sprayed out through the liquid adding opening, and the inclined liquid adding opening is easier to use when the liquid adding opening is at a relatively high position.
[0021] In the fourth aspect and the preferred embodiments thereof, the first end of the liquid supplementing pipe extends into the water storage cavity through the liquid supplementing opening, and the water storage cavity is configured such that the lowest water level in the water storage cavity is higher than the first end of the liquid supplementing pipe and the distance between them is less than a second value. Compared with the case where the first end of the liquid supplementing pipe is located at the bottom end of the water storage cavity, the water pressure in the water storage cavity can be ensured, so that the liquid supplementing member is easy to supplement liquid to the liquid supplementing port.
[0022] The fifth aspect has the technical advantages of any one of the first to fourth aspects.
[0023] In the sixth aspect and the preferred embodiments thereof, the first branch pipe is used to communicate the overflow opening and the second liquid supplementing port, so that when the liquid in the liquid supplementing member is too much (generally exceeding the highest water level mark), the liquid in the liquid supplementing member flows to the second liquid supplementing port through the overflow opening and the first branch pipe, so that the highest water level of the liquid supplementing member is reduced, and the liquid spraying caused by the excessively high water level in the subsequent liquid adding process is avoided.
[0024] In the seventh aspect and the preferred embodiments thereof, the first branch pipe is provided with a liquid discharging section extending in the horizontal direction, and the liquid discharging section communicates with the overflow opening, which is conducive to the slow flow of the liquid discharged from the liquid supplementing member through the overflow opening to the second liquid supplementing port. The first branch pipe is further connected with a first branch valve, and the first branch valve is adapted to be closed when the liquid adding opening is opened and to be opened when the liquid adding opening is closed, so that the first branch valve can be opened or closed as needed, which is conducive to the control.
[0025] In the eighth aspect and the preferred embodiments thereof, when the liquid is first injected, there are bubbles on the liquid and / or liquid cooling circulation pipeline due to the large injection flow rate. If the bubbles flow into the circulating pump, cavitation or blockage of the circulating pump will occur, which will cause damage to the pump. In the present technical solution, a switch valve is connected in series between the liquid supply opening and the liquid return opening, the switch valve is adapted to be closed before the liquid is first injected and to be opened after the injection is completed, a circulating pump is connected in series between the switch valve and the liquid supply opening and is used to drive the cooling liquid to flow from the liquid return opening to the liquid supply opening, and an exhaust pipeline is connected in parallel to both ends of the switch valve and is provided with an exhaust valve. Therefore, before the liquid is first injected, the switch valve can be closed, and the liquid does not directly flow into the liquid inlet end of the pump when the liquid is injected, but first passes through the gas-liquid separator of the exhaust pipeline. After the liquid passes through the gas-liquid separator, the bubbles are discharged through the exhaust valve, and the liquid flows into the liquid inlet end of the circulating pump, which can reduce the bubbles entering the circulating pump, thereby reducing the cavitation or blockage. After the injection is completed, the switch valve can be opened, and the exhaust pipeline is connected in parallel to the liquid cooling circulation pipeline to realize the auxiliary exhaust function.
[0026] In technical solution nine and its preferred embodiment, the first liquid replenishment port and the second liquid replenishment port are located at both ends of the switching valve, so that the first branch pipe, the liquid replenishment component and the liquid replenishment pipe can form the exhaust branch when the liquid cooling circulation pipeline is first filled with liquid.
[0027] Technical solution ten has the technical advantages of any one of technical solutions five to nine. Attached Figure Description
[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram illustrating the working principle of the liquid cooling circulation device connected to the liquid cooling plate in the embodiments of this application.
[0030] Figure 2 This is a three-dimensional schematic diagram of the liquid cooling circulation device in this embodiment;
[0031] Figure 3 for Figure 2 Side view;
[0032] Figure 4 for Figure 3 Top view;
[0033] Figure 5 for Figure 4 Sectional view along the AA direction;
[0034] Figure 6 This is a partial schematic diagram of the replenishment tank in an embodiment of this application;
[0035] Explanation of key figure labels:
[0036] Shell 10; Liquid cooling circulation pipe 20; Liquid supply port 21; Liquid return port 22; Switch valve 23; First liquid replenishment port 24; Second liquid replenishment port 25; Circulation pump 30; Exhaust pipe 40; Gas-liquid separator 41; Liquid inlet 411; Liquid outlet 412; Exhaust valve 413; Exhaust branch valve 42; Liquid replenishment device 50; Liquid replenishment component 51; Liquid replenishment tank 52; Water storage chamber 01; Highest water level mark 02; Lowest water level mark 03; Liquid filling port 521; Liquid replenishment port 522; Overflow port 523; Top wall 524; Expansion cover 53; Pressure relief valve 531; Liquid replenishment pipe 54; On / off valve 541; Grid structure 55; Liquid passage port 551; Drainage section 56; First branch pipe 60; First branch valve 61; Heat exchange device 70; Liquid cooling plate 100. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0038] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.
[0039] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.
[0040] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.
[0041] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".
[0042] This embodiment provides an energy storage converter, which includes a liquid-cooled power module and a liquid-cooled circulation device. The liquid-cooled power module includes a power switch tube and a liquid-cooled plate 100 for dissipating heat from the power switch tube. The liquid-cooled plate 100 is connected to the liquid-cooled circulation device.
[0043] See Figures 1-4 , Figure 1 This diagram illustrates the working principle of a liquid cooling circulation device connected to a liquid cooling plate 100. Figures 2-4 See the schematic diagram of the liquid cooling circulation device. Figures 2-4The liquid cooling circulation device comprises a shell 10, a liquid cooling circulation pipeline 20, a circulating pump 30, an exhaust pipeline 40, a liquid supplement device 50, a first branch pipeline 60 and a heat exchange device 70 which are accommodated in the shell 10.
[0044] The liquid cooling circulation pipeline 20 is provided with a liquid supply port 21 and a liquid return port 22 which are connected with an external liquid cooling plate 100, and a switch valve 23 is connected in series between the liquid supply port 21 and the liquid return port 22, and the switch valve 23 is adapted to be closed before the liquid is first injected and opened after the liquid injection is completed. The liquid cooling circulation pipeline 20 is further provided with a liquid inlet and a first liquid supplement port 24 between the liquid inlet end of the circulating pump 30 and the switch valve 23, and a liquid distribution port and a second liquid supplement port 25 between the liquid return port 22 and the switch valve 23. In the embodiment, the liquid inlet and the first liquid supplement port 24 are integrally arranged, and the liquid distribution port and the second liquid supplement port 25 are integrally arranged, so that the first liquid supplement port 24 forms the liquid inlet, the second liquid supplement port 25 forms the liquid distribution port, and the first liquid supplement port 24 and the second liquid supplement port 25 are respectively located at two ends of the switch valve 23.
[0045] The circulating pump 30 is connected in series between the switch valve 23 and the liquid supply port 21 and is used to drive the cooling liquid to flow from the liquid return port 22 to the liquid supply port 21. When the switch valve 23 is opened, the circulating pump 30 drives the cooling liquid to flow from the liquid return port 22 to the liquid supply port 21 through the second liquid supplement port 25 and the first liquid supplement port 24.
[0046] The exhaust pipeline 40 is connected in parallel at two ends of the switch valve 23, and a gas-liquid separator 41 and an exhaust branch valve 42 are connected in series on the exhaust pipeline 40. Figures 2-3 In the embodiment, the gas-liquid separator 41 extends in the vertical direction, and a liquid inlet 411 is arranged on the side of the gas-liquid separator 41, a liquid outlet 412 is arranged on the bottom of the gas-liquid separator 41, and an exhaust valve 413 is arranged on the top end of the gas-liquid separator 41. The liquid inlet 411 is higher than the second liquid supplement port 25 (liquid distribution port), and the liquid outlet 412 is higher than the first liquid supplement port 24 (liquid inlet). When the switch valve 23 is closed, the circulating pump 30 drives the cooling liquid to flow into the first liquid supplement port 24 (liquid inlet) through the second liquid supplement port 25 (liquid distribution port), the liquid inlet 411 and the liquid outlet 412. The exhaust branch valve 42 is arranged between the liquid outlet 412 and the first liquid supplement port 24 (liquid inlet).
[0047] Referring to Figures 3-6The liquid supplementing device 50 comprises a liquid supplementing member 51 and a liquid supplementing pipe 54. The liquid supplementing member 51 comprises a liquid supplementing tank 52 and an expansion cover 53. The liquid supplementing tank 52 is provided with a water storage cavity 01, a highest water level mark 02 corresponding to the water storage cavity 01, a lowest water level mark 03 corresponding to the water storage cavity 01, a liquid supplementing opening 521 higher than the highest water level mark 02, a liquid supplementing opening 522 at the bottom end of the water storage cavity 01, an overflow opening 523 higher than the highest water level, and a top wall 524 forming the top end of the water storage cavity 01. The distance between the highest water level mark 02 and the top wall 524 is greater than a first value, that is, the distance between the highest water level in the liquid in the water storage cavity 01 and the top end thereof is greater than the first value. The liquid supplementing opening 521 corresponds to the top of the water storage cavity 01. The expansion cover 53 is detachably arranged on the liquid supplementing opening 521 and is provided with a pressure relief valve 531. The liquid supplementing opening 522 is higher than the first liquid supplementing port 24. The liquid supplementing pipe 54 is used to connect the liquid supplementing opening 522 and the first liquid supplementing port 24 and is provided with an opening and closing valve 541. The opening and closing valve 541 is adapted to be closed when the liquid supplementing opening 521 is opened and to be opened when the liquid supplementing opening 521 is closed. In the embodiment, referring to Figure 5 The first end (upper end) of the liquid supplementing pipe 54 penetrates into the water storage cavity 01 through the liquid supplementing opening 522 and the distance between the first end and the lowest water level mark 03 is less than a second value, that is, the lowest water level in the liquid in the water storage cavity 01 is higher than the first end of the liquid supplementing pipe 54 and the distance therebetween is less than the second value.
[0048] In the embodiment, referring to Figure 6 A grid structure 55 is formed in the water storage cavity 01. The grid structure 55 is located between the liquid supplementing opening 521 and the liquid supplementing opening 522 in the vertical direction. The grid structure 55 is provided with at least two liquid passing openings 551 arranged in the vertical direction and staggered in the horizontal direction. The liquid supplementing opening 521 is connected to the liquid supplementing opening 522 through the liquid passing openings 551.
[0049] In the embodiment, referring to Figure 3 The liquid supplementing opening 521 is lower than the top wall 524 and is arranged to be inclined relative to the vertical direction. In the embodiment, the liquid supplementing tank 52 is further provided with a liquid discharging section 56 extending in the horizontal direction. One end of the liquid discharging section 56 is connected to the overflow opening 523 and the other end thereof is connected to a first branch pipe 60. The first branch pipe 60 is used to connect the overflow opening 523 and a second liquid supplementing port 25. The first branch pipe 60 is further connected with a first branch valve 61. The first branch valve 61 is adapted to be closed when the liquid supplementing opening 521 is opened and to be opened when the liquid supplementing opening 521 is closed.
[0050] In actual application, the opening and closing valve 541, the first branch valve 61, the exhaust branch valve 42 and the switch valve 23 are all bidirectional valves.
[0051] The working process of the embodiment is as follows:
[0052] When the liquid is injected for the first time, the switch valve 23 is closed, the on-off valve 541, the first branch valve 61 and the exhaust branch valve 42 are opened, and the cooling liquid is injected into the liquid cooling circulation pipeline 20. The liquid does not directly flow into the liquid inlet end of the circulating pump 30 during the injection, but passes through the liquid supplement device 50 and the exhaust pipeline 40 in parallel with the switch valve 23. Most of the liquid passes through the gas-liquid separator 41 of the exhaust pipeline 40, and a small amount of liquid flows to the liquid supplement device 50. The liquid enters the gas-liquid separator 41 through the liquid inlet port 411, the gas in the gas-liquid separator 41 is discharged upward through the exhaust valve 413, and then the liquid flows to the first liquid supplement port 24 through the liquid outlet port 412. Therefore, the bubbles are discharged through the gas-liquid separator 41, and the liquid flows into the liquid inlet end of the circulating pump 30 to complete a cycle. A small amount of liquid and bubbles flow into the liquid supplement pipeline 54, and the bubbles are discharged through the liquid supplement member 51. That is, the exhaust pipeline 40 and the liquid supplement device 50 can exhaust the liquid cooling circulation pipeline 20, but most of the bubbles are discharged from the exhaust pipeline 40, and a small amount of bubbles are discharged from the liquid cooling circulation pipeline 20.
[0053] After the first injection is completed, during normal use of the system, the switch valve 23 can be opened, the on-off valve 541, the first branch valve 61 and the exhaust branch valve 42 are opened, and the circulating pump 30 drives the cooling liquid to flow from the liquid return port 22 to the liquid supply port 21 through the second liquid supplement port 25 and the first liquid supplement port 24. When the pipeline pressure of the liquid cooling circulation pipeline 20 is relatively large, the pipeline pressure of the liquid cooling circulation pipeline 20 can flow to the liquid supplement member 51 and / or the gas-liquid separator 41. When it flows into the liquid supplement member 51, the liquid level of the liquid supplement member 51 rises and squeezes the gas above the liquid, so that the pressure relief valve 531 of the expansion cover 53 is opened. That is, the pressure relief valve 531 on the expansion cover 53 can realize the pressure relief of the pipeline of the liquid cooling circulation pipeline 20, so as to prevent the pipeline pressure of the liquid cooling circulation pipeline 20 from being too large. When it flows into the gas-liquid separator 41, the liquid flows into the gas-liquid separator 41. When the pressure of the liquid cooling circulation pipeline 20 is relatively small, the liquid supplement member 51 can supplement the liquid to the first liquid supplement port 24 under the action of the liquid gravity and the pressure of the pressure relief valve 531. At this time, the liquid supplement member 51 plays the role of the combination of the expansion tank and the water tank.
[0054] When manual liquid supplement is needed for the liquid supplement member 51, the on-off valve 541 and the first branch valve 61 are closed, the switch valve 23 and the exhaust branch valve 42 can be normally opened, the liquid inlet port 521 is opened, and a short time is waited to add liquid to the storage cavity 01 of the liquid supplement member 51. After the liquid supplement is completed, the on-off valve 541 and the first branch valve 61 are opened.
[0055] In the embodiment, when liquid is injected for the first time, there are bubbles in the liquid and / or the liquid cooling circulation pipeline 20 due to large injection flow rate. If the bubbles flow into the circulation pump 30, the circulation pump 30 will be damaged due to cavitation or collision. In the embodiment, the switch valve 23 is connected in series between the liquid supply port 21 and the liquid return port 22. The switch valve 23 is suitable for being closed before the liquid is injected for the first time and being opened after the liquid injection is completed. The circulation pump 30 is connected in series between the switch valve 23 and the liquid supply port 21 and is used to drive the cooling liquid to flow from the liquid return port 22 to the liquid supply port 21. The exhaust pipeline 40 is connected in parallel to both ends of the switch valve 23 and is provided with the exhaust valve 413. Therefore, before the liquid is injected for the first time, the switch valve 23 can be closed. When the liquid is injected, the liquid does not directly flow into the liquid inlet end of the circulation pump 30, but first passes through the gas-liquid separator 41 of the exhaust pipeline 40. After the liquid passes through the gas-liquid separator 41, the bubbles are discharged through the exhaust valve 413 of the gas-liquid separator 41, and the liquid flows into the liquid inlet end of the circulation pump 30. That is, the bubbles entering the circulation pump 30 are reduced, thereby reducing the cavitation or collision. After the liquid injection is completed, the switch valve 23 can be opened. The liquid of the liquid cooling circulation pipeline passes through the pipeline where the switch valve 23 is located, the resistance is small, and the flow rate of the cooling liquid is faster. The exhaust pipeline 40 is connected in parallel to the liquid cooling circulation pipeline 20 to realize the auxiliary exhaust function.
[0056] In the embodiment, the liquid cooling circulation pipeline 20 is further provided with a liquid inlet between the liquid inlet end of the circulation pump 30 and the switch valve 23. The gas-liquid separator 41 extends in the vertical direction. The gas-liquid separator 41 is provided with a liquid inlet 411 at the side and a liquid outlet 412 at the bottom. The liquid outlet 412 is higher than the liquid inlet. The circulation pump 30 is further suitable for driving the cooling liquid to flow from the liquid inlet 411 to the liquid outlet 412. That is, the gas-liquid separation can be realized by the density of the gas and the liquid and the gravity effect. The structure is simple and practical.
[0057] In the embodiment, the liquid cooling circulation pipeline 20 is provided with a liquid distribution port between the liquid return port 22 and the switch valve 23. The liquid distribution port is lower than the liquid inlet 411. The circulation pump 30 is further suitable for driving the cooling liquid to flow from the liquid distribution port to the liquid inlet 411. Therefore, the two ends of the exhaust pipeline 40 are connected to the liquid distribution port and the liquid inlet 411 respectively. The liquid distribution port is lower than the liquid inlet 411. The bubbles in the liquid can flow upward better when the liquid is injected for the first time, which is beneficial to exhaust.
[0058] In the embodiment, the exhaust branch valve 42 is further connected in series on the exhaust pipeline 40. The exhaust branch valve 42 is arranged between the liquid outlet 412 and the liquid inlet. That is, the exhaust branch valve 42 can be opened or closed according to the requirement, which is beneficial to control.
[0059] In this embodiment, the liquid supplementing device 50 can also realize auxiliary exhaust of the liquid cooling circulation pipeline during the first liquid injection; when the pipeline pressure of the liquid cooling circulation pipeline 20 is relatively large during normal operation of the liquid cooling circulation pipeline, the pipeline pressure of the liquid cooling circulation pipeline 20 can flow to the liquid supplementing member 51, the liquid level of the liquid supplementing member 51 rises and squeezes the gas above the liquid, so that the pressure relief valve 531 of the expansion cover 53 is opened, that is, the pressure relief valve 531 on the expansion cover 53 can realize pressure relief of the liquid cooling circulation pipeline 20, so as to prevent the pipeline pressure of the liquid cooling circulation pipeline 20 from being too large, and when the pipeline pressure of the liquid cooling circulation pipeline 20 is relatively small, the liquid supplementing member 51 can supplement liquid to the liquid supplementing port under the action of liquid gravity and the pressure of the pressure relief valve 531, so that the liquid supplementing member 51 integrates the functions of a liquid supplementing tank and an expansion tank, ensures that the pipeline of the liquid cooling circulation pipeline 20 operates under a relatively stable pressure, and makes the structure of the liquid cooling circulation device compact and simple. After the liquid cooling circulation pipeline operates for a period of time, the liquid supplementing member 51 supplements liquid to the liquid cooling circulation pipeline, and when the liquid in the liquid supplementing member 51 is relatively small, liquid needs to be supplemented to the liquid supplementing member 51. In this embodiment, the water storage cavity 01 is configured such that the distance between the highest water level in the liquid in the water storage cavity 01 and the top end thereof is greater than a first value, so that there is sufficient space between the highest water level of the water storage cavity 01 and the top wall 524; the liquid supplementing pipe 54 is used to communicate the liquid supplementing port and the liquid supplementing port, and a start-stop valve 541 is arranged thereon, which is suitable for being closed when the liquid supplementing port 521 is opened. Therefore, before liquid is added to the liquid supplementing member 51, the start-stop valve 541 can be closed first, and then the liquid supplementing port 521 is opened. The pressure released outward by the liquid supplementing member 51 is generally the pressure between the first liquid supplementing port 24 and the current water level of the liquid in the water storage cavity 01, usually the pressure of the liquid between the first liquid supplementing port 24 and the lowest water level of the liquid in the water storage cavity 01, and at most the pressure of the liquid between the first liquid supplementing port 24 and the highest water level of the liquid in the water storage cavity 01. The pressure is relatively small, and there is sufficient space between the highest water level of the water storage cavity 01 and the top wall 524, so that when the start-stop valve 541 is closed and the liquid supplementing port 521 is opened, the pressure of the liquid in the liquid supplementing member 51 is small, which can be released in the space between the highest water level of the water storage cavity 01 and the top wall 524, and is not easy to be sprayed out through the liquid supplementing port 521, and the release time is short. After the expansion cover 53 is opened and the water pressure in the liquid supplementing member 51 balances with the external atmospheric pressure after a short waiting time, liquid can be added to the liquid supplementing member 51, so that the liquid supplementing operation is simple. After the liquid supplementing is completed, the start-stop valve 541 can be opened, and the liquid supplementing device 50 can ensure that the pipeline of the liquid cooling circulation pipeline operates under a relatively stable pressure.
[0060] In the embodiment, the first branch pipe 60 is used to communicate the overflow port 523 and the second liquid supplement port 25, so that when the liquid in the liquid supplement member 51 is too much (generally more than the highest water level mark 02), the liquid in the liquid supplement member 51 flows to the second liquid supplement port 25 through the overflow port 523 and the first branch pipe 60, so that the highest water level of the liquid supplement member 51 is reduced, and the subsequent liquid injection process caused by the high water level is avoided, and the liquid supplement member 51 is connected in parallel to both ends of the switch valve 23, which is beneficial to realize the auxiliary exhaust function of the liquid supplement member 51 in the first liquid injection process.
[0061] In the embodiment, the first liquid supplement port 24 forms a liquid inlet, and the second liquid supplement port 25 forms a liquid distribution port, so that the liquid cooling pipeline is more easily processed and formed, and a closed system is more easily formed after the liquid cooling circulation device is normally operated.
[0062] In the embodiment, the liquid supplement tank 52 is provided with a liquid discharge section 56 extending in the horizontal direction, one end of the liquid discharge section 56 is communicated with the overflow port 523, and the other end is communicated with the first branch pipe 60, which is beneficial to the slow flow of the liquid discharged from the liquid supplement member 51 to the second liquid supplement port 25 through the overflow port 523; the first branch valve 61 is suitable to be closed when the liquid inlet 521 is opened and to be opened when the liquid inlet 521 is closed, so that the first branch valve 61 can be opened or closed as needed, which is beneficial to control.
[0063] In the embodiment, the grid structure 55 is formed in the water storage cavity 01, the grid structure 55 is located between the liquid inlet 521 and the liquid supplement port 522 in the vertical direction, the grid structure 55 is provided with at least two liquid passing ports 551 arranged in the vertical direction and staggered in the horizontal direction, and the liquid inlet 521 is communicated with the liquid supplement port 522 through each liquid passing port 551. On the one hand, the grid structure 55 can increase the strength of the liquid supplement member 51, and on the other hand, the grid structure 55 forms a labyrinth waterway between the liquid inlet 521 and the liquid supplement port 522, so that when the liquid inlet 521 is opened, the water flow resistance is large, and the water in the water storage cavity 01 is not easy to be sprayed out.
[0064] In the embodiment, the liquid inlet 521 is lower than the top wall 524 and is arranged to be inclined relative to the vertical direction, compared with the liquid inlet 521 arranged on the top wall 524, the water in the water storage cavity 01 is more difficult to be sprayed out through the liquid inlet 521, and the inclined liquid inlet 521 is more easy to be operated when the liquid inlet 521 is at a relatively high height.
[0065] In the preferred embodiment, the liquid supplement tank 52 is also provided with a lowest water level mark 03 corresponding to the water storage cavity 01, the first end of the liquid supplement pipe 54 penetrates the liquid supplement port 522 and extends into the water storage cavity 01, and the distance between the first end of the liquid supplement pipe 54 and the lowest water level mark is less than a second value, compared with the scheme that the first end of the liquid supplement pipe 54 is located at the bottom end of the water storage cavity 01, the water pressure in the water storage cavity 01 can be guaranteed, so that the liquid supplement member 51 is easy to supplement the liquid supplement port.
[0066] The above description and embodiment are used to explain the scope of protection of the present application, but do not constitute a limitation on the scope of protection of the present application. Through the inspiration of the present application or the above embodiment, the ordinary skilled in the art combines the common knowledge, the ordinary technical knowledge in the art and / or the prior art, and obtains the modification, equivalent replacement or other improvement of the embodiment of the present application or one part of the technical features through logical analysis, reasoning or limited test, which should be included in the protection scope of the present application.
Claims
1. A liquid replenishment device (50) for replenishing liquid to a liquid-cooled circulation pipe (20), the liquid-cooled circulation pipe (20) being provided with a liquid replenishment port; characterized in that, include A replenishment component (51) includes a replenishment tank (52) and an expansion cap (53). The replenishment tank (52) has a water storage chamber (01), a filling port (521) corresponding to the top of the water storage chamber (01), and a replenishment port (522) located at the bottom of the water storage chamber (01). The water storage chamber (01) is configured such that the distance between the highest water level in the liquid inside and its top is greater than a first value. The expansion cap (53) is detachably installed on the filling port (521) and has a pressure relief valve (531). The replenishment port (522) is higher than the replenishment port. A replenishment tube (54) is provided for connecting the replenishment port (522) and the replenishment outlet, and is equipped with an on / off valve (541) adapted to close when the replenishment port (521) is opened and open when the replenishment port (521) is closed.
2. The fluid replenishment device (50) as described in claim 1, characterized in that, A grid structure (55) is formed inside the water storage cavity (01). The grid structure (55) is located vertically between the liquid filling port (521) and the liquid replenishment port (522). The grid structure (55) is provided with at least two liquid passage ports (551) arranged vertically and staggered horizontally. The liquid filling port (521) is connected to the liquid replenishment port (522) through each liquid passage port (551).
3. The fluid replenishment device (50) as described in claim 2, characterized in that, The replenishment tank (52) has a top wall (524) corresponding to the top of the water storage chamber (01), and the liquid inlet (521) is lower than the top wall (524) and is inclined relative to the vertical direction.
4. The fluid replenishment device (50) as described in claim 3, characterized in that, The first end of the replenishment tube (54) extends through the replenishment port (522) into the water storage chamber (01); the water storage chamber (01) is also configured such that the lowest water level of the liquid inside is higher than the first end of the replenishment tube (54) and the distance between the two is less than a second value.
5. A liquid cooling circulation device, characterized in that, include Liquid cooling circulation pipe (20), which is equipped with a liquid replenishment port; and A fluid replenishment device (50) as described in any one of claims 1-4.
6. The liquid cooling circulation device as described in claim 5, characterized in that, It also includes a first branch pipe (60); the liquid replenishment port connected to the replenishment pipe (54) is defined as the first replenishment port (24); the liquid cooling circulation pipe (20) is also provided with a second replenishment port (25); the replenishment tank (52) is also provided with an overflow port (523) at the top of the water storage chamber (01); the first branch pipe (60) is used to connect the overflow port (523) and the second replenishment port (25).
7. The liquid cooling circulation device as described in claim 6, characterized in that, The replenishment tank (52) is also provided with a drain section (56) extending in the horizontal direction; one end of the drain section (56) is connected to the overflow port (523), and the other end is connected to the first branch pipe (60); a first branch valve (61) is also connected in series on the first branch pipe (60), and the first branch valve (61) is adapted to close when the filling port (521) is opened and open when the filling port (521) is closed.
8. The liquid cooling circulation device as described in claim 7, characterized in that, It also includes a circulation pump (30) and an exhaust pipe (40); the liquid-cooled circulation pipe (20) is provided with a liquid supply port (21) and a liquid return port (22) for connection to the outside, and a switch valve (23) is connected in series between the liquid supply port (21) and the liquid return port (22), the switch valve (23) is adapted to be closed before the first liquid injection and opened after the liquid injection is completed; the circulation pump (30) is connected in series between the switch valve (23) and the liquid supply port (21) and is used to drive the coolant to flow from the liquid return port (22) to the liquid supply port (21); the exhaust pipe (40) is connected in parallel to both ends of the switch valve (23), and a gas-liquid separator (41) is connected in series on it, and an exhaust valve (413) is provided at the top of the gas-liquid separator (41).
9. A liquid cooling circulation device as described in claim 8, characterized in that, The first replenishment port (24) and the second replenishment port (25) are located at both ends of the switching valve (23).
10. An energy storage converter, characterized in that, The device includes a liquid-cooled power module and a liquid-cooled circulation device as described in any one of claims 5-9. The liquid-cooled power module includes a power switch tube and a liquid-cooled plate (100) for dissipating heat from the power switch tube. The liquid-cooled plate (100) is connected to the liquid-cooled circulation device.