Heat dissipation cabinet

Abstract

The invention relates to the field of liquid cooling heat dissipation, and particularly discloses a heat dissipation cabinet which comprises a cabinet body and a controller, the cabinet body is provided with a cooling liquid cavity, and the heat dissipation cabinet is characterized in that a heat exchange cavity is formed in the side wall of the cabinet body, and the cabinet body is provided with a cooling liquid circulation system; the cooling liquid circulating system comprises a circulating pump, a liquid outlet pipeline entering the heat exchange cavity and a liquid inlet pipeline entering the cooling liquid cavity, the liquid outlet pipeline is provided with a plurality of branches, the branches are connected with different heights of the cooling liquid cavity, each branch is provided with an electromagnetic valve, a plurality of groups of temperature sensors are further arranged in the cooling liquid cavity, and the temperature sensors are connected with the cooling liquid cavity. Each branch corresponds to one group of temperature sensors, when the corresponding temperature sensor detects that the temperature exceeds a set value, the electromagnetic valve on the corresponding branch is opened, and if the temperature does not exceed the set value, the electromagnetic valve on the branch corresponding to the highest temperature value is opened. The invention has the effect of improving local heat accumulation of the cabinet.

Description

Technical Field

[0001] The present application relates to the field of liquid cooling and heat dissipation, and in particular to a heat dissipation cabinet. Background Art

[0002] In today's era of rapid technological development, liquid cooling cabinets, as an advanced heat dissipation solution, are gradually gaining widespread attention.

[0003] Liquid cooling cabinet is a cabinet system that uses liquid circulation to remove heat from equipment. It usually consists of a cabinet, liquid cooling module, circulation pump, coolant, etc. Compared with traditional air cooling, liquid cooling cabinet has many significant advantages.

[0004] First of all, efficient heat dissipation is the outstanding advantage of liquid cooling cabinets. The specific heat capacity of liquid is much greater than that of air, and it can absorb more heat. This allows liquid cooling cabinets to more effectively reduce the temperature of equipment and ensure that the equipment maintains stable performance under high load operation. For those servers, data centers and other equipment with high power density and high heat generation, liquid cooling cabinets can provide reliable heat dissipation protection to avoid equipment failure and performance degradation caused by overheating.

[0005] Secondly, liquid cooling cabinets have the characteristic of low noise. Traditional air cooling often relies on high-speed rotating fans for air circulation, which will produce a lot of noise. Liquid cooling cabinets mainly dissipate heat through the silent flow of liquid, which greatly reduces the operating noise and creates a quieter and more comfortable working environment for staff.

[0006] Furthermore, liquid cooling cabinets can achieve compact designs. Due to the high heat dissipation efficiency of liquid, efficient heat dissipation can be achieved in a smaller space. This allows the liquid cooling cabinet to be designed more compactly, saving room space and improving space utilization. This is a very important advantage for data centers with limited space.

[0007] In addition, liquid cooling cabinets also have the advantages of energy saving and environmental protection. On the one hand, efficient heat dissipation can reduce the energy consumption of equipment and reduce energy waste. On the other hand, due to the high heat dissipation efficiency of liquid cooling cabinets, it can reduce the dependence on auxiliary heat dissipation equipment such as air conditioners, thereby further reducing energy consumption. At the same time, some coolants can also be recycled, reducing the impact on the environment.

[0008] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: in the traditional method, the coolant generally enters from the bottom and exits from the top. Since the heat dissipation device is immersed or semi-immersed in the coolant, there will be local heat accumulation due to the obstruction of the heat dissipation device, thereby affecting the heat dissipation effect. Summary of the invention

[0009] In order to improve the problem of local heat accumulation, the present application provides a heat dissipation cabinet.

[0010] The heat dissipation cabinet provided in this application adopts the following technical solution: A heat dissipation cabinet comprises a cabinet body and a controller, wherein the cabinet body has a cooling liquid cavity, and is characterized in that: a heat exchange cavity is opened on the side wall of the cabinet body, and a cooling liquid circulation system is provided on the cabinet body; the cooling liquid circulation system comprises a circulation pump, a liquid outlet pipeline entering the heat exchange cavity and a liquid inlet pipeline entering the cooling liquid cavity, wherein the liquid outlet pipeline has a plurality of branches, each branch is connected to a different height of the cooling liquid cavity, a first solenoid valve is installed on each branch, and a plurality of groups of temperature sensors are also arranged in the cooling liquid cavity, each branch corresponds to a group of temperature sensors, when the corresponding temperature sensor detects that the temperature exceeds a set value, the first solenoid valve on the corresponding branch is opened, when it is detected that multiple groups of temperature sensors all exceed the set value, only the first solenoid valve corresponding to the highest temperature is opened, if the temperature does not exceed the set value, then the first solenoid valve on the branch corresponding to the highest temperature value is opened.

[0011] By adopting the above technical solution, temperature sensors are set to detect the temperatures at different heights in the cabinet, and the coolant at the highest temperature or the temperature exceeding the set value is preferentially extracted to improve local liquid accumulation.

[0012] Optionally, the branch line is fixedly passed through the side wall of the cooling liquid chamber and is sealedly connected to the side wall of the cooling liquid chamber, and one end of the branch line located in the cooling liquid chamber has a transfer interface.

[0013] By adopting the above technical solution, different inlet pipes are installed through the adapter interface, and since the branch is fixed through the side wall of the coolant chamber, no coolant will leak from the connection between the branch and the side wall of the coolant chamber.

[0014] Optionally, the adapter interface is a threaded interface, and an introduction pipe is threadedly connected to the adapter interface.

[0015] By adopting the above technical solution, different types of inlet pipes (different lengths and / or different shapes) can be conveniently and quickly installed through threaded connection, thereby changing the position of the liquid inlet. In addition, the threaded connection part can be extended, and the position of the liquid inlet of the inlet pipe can be changed by rotating the inlet pipe. Since the connection is located in the coolant cavity, it does not matter even if there is a small amount of leakage at the threaded connection, so threaded connection is one of the preferred connection methods.

[0016] Optionally, the inlet pipe has a plurality of bendable branch pipes, and the branch pipes are connected to the inlet pipe by plugging.

[0017] By adopting the above technical solution, the branch pipe can be extended to multiple positions at the same horizontal plane (liquid level) to facilitate quick extraction.

[0018] Optionally, an inlet pipe is connected to the adapter interface, the inlet pipe has a first port and a second port, the first port is sealed and rotatably connected to the adapter interface, and the projection of the second port on the side wall of the cooling liquid chamber is staggered with the projection of the first port on the side wall of the cooling liquid chamber.

[0019] By adopting the above technical solution, the height of the liquid inlet of the introduction pipe can be adjusted within a certain range by rotating the introduction pipe.

[0020] Optionally, the adapter interface is a bendable and shaped interface.

[0021] By adopting the above technical solution, the position of the liquid inlet of the introduction tube can be changed by bending the adapter interface.

[0022] Optionally, each group of temperature sensors includes multiple temperature sensors, and the multiple temperature sensors are distributed in the same horizontal plane or at the upper and lower ends of the same horizontal plane.

[0023] By adopting the above technical solution, when a group of temperature sensors is provided with multiple ones, as long as one of the temperature sensors in the group exceeds the set value, the corresponding first solenoid valve is started.

[0024] Optionally, a storage cavity is provided at the bottom of the cabinet, and a discharge pipe is separately connected to the bottom of each branch, the discharge pipe is located between the first solenoid valve and the side wall of the cooling liquid cavity, one end of the discharge pipe extends into the storage cavity, and the other end is connected to the branch; a solenoid valve 1 is provided on each of the discharge pipes, and a suction pipe is connected to the liquid outlet pipeline, the suction pipe is inserted into the storage cavity, a solenoid valve 2 is installed on the suction pipe, and a water level gauge is installed in the storage cavity.

[0025] By adopting the above technical solution, when it is detected that multiple groups of temperature sensors exceed the set value, only the first solenoid valve corresponding to the highest temperature is opened. At this time, the solenoid valve 1 of the discharge pipe on the corresponding branch can be opened, and the liquid flows into the storage chamber through gravity, and then flows into the main road of the liquid outlet pipeline through the suction pipe.

[0026] Optionally, a cavity is formed between the storage cavity and the cabinet, and both ends of the cavity are connected.

[0027] By adopting the above technical solution, the cavity can allow air to flow quickly, or a fan can be added in the cavity to assist in heat dissipation.

[0028] Optionally, the heat dissipation cabinet further includes a cabinet door, and the cabinet door is a liquid cooling door.

[0029] By adopting the above technical solution, the liquid cooling door can be provided with coolant inside and equipped with a fan, or it can be connected to the cooling liquid cavity through a hose. The setting of the liquid cooling door can reduce the impact of the external environment on the cabinet.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through multiple temperature sensors and corresponding solenoid valve branches, accurate heat dissipation at different heights of the cooling liquid chamber can be achieved. According to the temperature conditions of different areas, targeted heat dissipation is carried out to improve heat dissipation efficiency and effectively improve local heat accumulation; 2. The controller automatically controls the working state of the first solenoid valve and the circulation pump according to the signal of the temperature sensor, realizing the intelligent control of the heat dissipation process. Without manual intervention, it can automatically adjust the heat dissipation strategy according to the actual situation, thus improving the reliability and stability of the system; 3. The heat exchange cavity is opened on the side wall of the cabinet to increase the heat exchange area and improve the heat exchange efficiency between the coolant and the outside world. At the same time, the circulation pump ensures the continuous circulation of the coolant, further enhancing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an overall schematic diagram of an embodiment of the present application; Figure 2 It is a three-dimensional structural diagram of the cabinet; Figure 3 It is a schematic diagram of the connection between the transfer interface and the introduction pipe in the branch; Figure 4 It is one of the arrangements of temperature sensors; Figure 5 It is another arrangement of temperature sensors.

[0032] Figure numerals: 1. cabinet body; 2. cabinet door; 3. cooling liquid chamber; 4. heat exchange chamber; 5. circulation pump; 6. liquid outlet pipeline; 7. liquid inlet pipeline; 8. branch; 9. first solenoid valve; 10. temperature sensor; 11. adapter interface; 12. inlet pipe; 13. storage chamber; 14. discharge pipe; 15. solenoid valve one; 16. suction pipe; 17. solenoid valve two; 18. cooling fan; 19. cavity; 20. horizontal plane. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a heat dissipation cabinet, comprising a cabinet body 1, a cabinet door 2 and a controller, wherein the cabinet door 2 is a liquid cooling door. The cabinet body 1 has a cooling liquid cavity 3, a heat exchange cavity 4 is provided on the side wall of the cabinet body 1, and a cooling liquid circulation system is provided on the cabinet body 1.

[0035] The coolant circulation system includes a circulation pump 5, a liquid outlet pipeline 6 entering the heat exchange chamber 4 and a liquid inlet pipeline 7 entering the cooling liquid chamber 3, wherein the liquid outlet pipeline 6 has multiple branches 8, each branch 8 is connected to a different height of the cooling liquid chamber 3, and a first solenoid valve 9 is installed on each branch 8. Several groups of temperature sensors 10 are also arranged in the cooling liquid chamber 3, and each branch 8 corresponds to a group of temperature sensors 10. When the corresponding temperature sensor 10 detects that the temperature exceeds the set value, the first solenoid valve 9 on the corresponding branch 8 is opened. If the temperature does not exceed the set value, the first solenoid valve 9 on the branch 8 corresponding to the highest temperature value is opened.

[0036] The cooling liquid chamber 3 is used to store cooling liquid, and the cooling liquid circulates to remove heat and realize the heat dissipation function. The function of the heat exchange chamber 4 is that the cooling liquid exchanges heat with the outside in the heat exchange chamber 4 and dissipates the heat.

[0037] The advantages of opening a heat exchange chamber 4 on the side wall are: the heat exchange area is increased and the heat dissipation efficiency is improved. The heat inside the cabinet 1 can be transferred to the coolant in the heat exchange chamber 4 more quickly, and then the heat is dissipated through heat exchange between the coolant and the outside world. The heat exchange chamber 4 has two heat exchange modes. One is that the coolant enters the heat exchange chamber 4 and then dissipates the heat through the outer wall of the cabinet 1. The heat dissipation fins are fixed on the outer wall of the cabinet 1. This is a passive heat dissipation method. The other is an active heat dissipation method, that is, the outside has a heat exchange liquid passing through the heat exchange chamber 4, and the low-temperature heat exchange liquid exchanges heat with the high-temperature coolant entering the heat exchange chamber 4. The high-temperature coolant returns to a low temperature and then refluxes. The heat exchange liquid can be recooled by a water cooling tower or an air cooling tower.

[0038] The circulation pump 5 works continuously to provide power for the circulation of the coolant. The coolant flows from the coolant chamber 3 into the heat exchange chamber 4 through the branch 8 of the outlet pipe 6 (the corresponding branch 8 is selected according to the switch state of the first solenoid valve 9), and exchanges heat with the outside in the heat exchange chamber 4. The cooled coolant then returns to the coolant chamber 3 through the inlet pipe 7 to continue absorbing heat.

[0039] The liquid outlet pipeline 6 has multiple branches 8, and each branch 8 is connected to a different height of the cooling liquid chamber 3. Such a design allows the coolant to flow out of the cooling liquid chamber 3 from different height positions and enter the heat exchange chamber 4 for heat exchange. According to the temperature conditions at different height positions, the first solenoid valve 9 on the corresponding branch 8 is selectively opened to achieve precise heat dissipation of different height areas. The branch 8 is fixedly passed through the side wall of the cooling liquid chamber 3 and is sealed with the side wall of the cooling liquid chamber 3. One end of the branch 8 located in the cooling liquid chamber 3 has a transfer interface 11. The transfer interface 11 is a threaded interface, and an inlet pipe 12 is threadedly connected to the transfer interface 11. Specifically, an external thread can be set on the outer wall of the transfer interface 11, and an internal thread is opened at one end of the inlet pipe 12. In order to make the same layer of liquid extracted more uniform, a number of bendable branches can be set on the inlet pipe 12. The lengths of the branches are different, and the liquid inlets of the branches can be distributed at different positions. The branch pipe is connected to the inlet pipe 12 by plugging, specifically, a connecting hole is formed on the side wall of the inlet pipe 12, and the branch pipe is inserted into the connecting hole and has an interference fit. The branch pipe can be a flexible plastic pipe, such as a corrugated pipe, or a rubber pipe.

[0040] The liquid inlet pipeline 7 returns the coolant cooled by the heat exchange chamber 4 to the cooling liquid chamber 3 to continue absorbing heat.

[0041] The temperature sensor 10 is arranged in the cooling liquid chamber 3, and each branch 8 corresponds to a group of temperature sensors 10. It is used to monitor the temperature of different height positions of the cooling liquid chamber 3 in real time, and provide accurate temperature data for the controller so that the controller can make reasonable heat dissipation decisions. Each group of temperature sensors 10 can be set with only one, and generally two are set, so that when one fails, the other can also be used as a backup. Multiple temperature sensors 10 are distributed in the same horizontal plane 20 or at the upper and lower ends of the same horizontal plane 20.

[0042] Through multiple temperature sensors 10 and corresponding solenoid valve branches 8, accurate heat dissipation can be achieved at different heights of the cooling liquid chamber 3. According to the temperature conditions of different areas, heat dissipation is carried out in a targeted manner, which improves heat dissipation efficiency and avoids unnecessary energy waste.

[0043] A storage cavity 13 is provided at the bottom of the cabinet 1. A discharge pipe 14 is connected to each branch 8. The discharge pipe 14 is located between the first solenoid valve 9 and the side wall of the cooling liquid cavity 3. One end of the discharge pipe 14 extends into the storage cavity 13, and the other end is connected to the branch 8. A solenoid valve 15 is provided on each discharge pipe 14. A suction pipe 16 is connected to the liquid outlet pipeline 6. The suction pipe 16 is inserted into the storage cavity 13. A solenoid valve 2 17 is installed on the suction pipe 16. A water level gauge is installed in the storage cavity 13. A cavity 19 is formed between the storage cavity 13 and the cabinet 1, and both ends of the cavity 19 are connected. An auxiliary heat exchanger, such as a cooling fan 18, is provided in the storage cavity 13. A better way is to directly set the cooling fan 18 at one end of the cavity 19, and even set a cooling fan 18 at each end, so that the air flow can be accelerated by blowing and sucking.

[0044] The controller is responsible for receiving the signal from the temperature sensor 10 and controlling the working state of the first solenoid valve 9 and the circulation pump 5 according to the preset logic. Automatic control of the heat dissipation process is realized, and the intelligence level of the heat dissipation system is improved. The temperature setting value and the control logic of the first solenoid valve 9, the circulation pump 5, the solenoid valve 1 15, and the solenoid valve 2 17 can be adjusted according to actual needs to adapt to different working environments and heat dissipation requirements. It has high flexibility and scalability.

[0045] The cooling cabinet is suitable for various equipment and systems that require heat dissipation, such as: Data center: used to cool servers, network equipment and other electronic equipment to ensure the normal operation and stability of the equipment. Industrial control system: to dissipate heat for industrial controllers, inverters and other equipment to prevent equipment from being damaged due to overheating. Communication equipment: to provide heat dissipation solutions for communication base stations, switches and other equipment to ensure the reliable operation of the communication system.

[0046] The implementation principle of a heat dissipation cabinet in an embodiment of the present application is as follows: the temperature sensor 10 monitors the temperature at different heights of the cooling liquid chamber 3 in real time, and transmits the temperature data to the controller.

[0047] The controller makes a judgment based on the detection result of the temperature sensor 10: If the temperature sensor 10 detects that the temperature exceeds the set value, the controller opens the first solenoid valve 9 on the corresponding branch 8, allowing the coolant in the branch 8 to flow into the heat exchange cavity 4 for heat exchange, thereby reducing the temperature of the area.

[0048] If the temperatures detected by all temperature sensors 10 do not exceed the set value, the controller opens the first solenoid valve 9 on the branch 8 corresponding to the highest temperature value, and preferentially dissipates heat in the area with relatively high temperature.

[0049] If it is detected that multiple groups of temperature sensors 10 exceed the set value, only the first solenoid valve 9 corresponding to the highest temperature is opened, and at the same time, the solenoid valve 15 on the discharge pipe 14 and the solenoid valve 2 17 on the suction pipe 16 on the remaining branches 8 that exceed the temperature set value are opened, and the cooling fan 18 is turned on.

[0050] Embodiment 2: A heat dissipation cabinet, which differs from Embodiment 1 in that an inlet pipe 12 is connected to the adapter interface 11, and the inlet pipe 12 has a first port and a second port, the first port is sealed and rotatably connected to the adapter interface 11, and the projection of the second port on the side wall of the cooling liquid chamber 3 is staggered with the projection of the first port on the side wall of the cooling liquid chamber 3. In simple terms, the inlet pipe 12 is not a straight pipe, but can be a V-shaped pipe, an L-shaped pipe, etc. The sealed rotatable connection method is to open an annular groove on the side wall of the adapter interface 11, and a sealing ring is arranged in the annular groove. The inlet pipe 12 is sleeved outside the adapter interface 11 and is interference fit with the sealing ring, and a certain external force is required to rotate the inlet pipe 12.

[0051] Embodiment 3: A heat dissipation cabinet, which is different from Embodiment 1 in that the adapter interface 11 is an interface that can be bent and shaped, such as a corrugated tube or a memory metal tube.

[0052] It is particularly noted that the above-mentioned horizontal plane 20 can be understood as a liquid surface.

[0053] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, 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" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat dissipation cabinet, comprising a cabinet body and a controller, wherein the cabinet body has a cooling liquid cavity, characterized in that: The side wall of the cabinet is provided with a heat exchange cavity, and the cabinet is provided with a coolant circulation system; The coolant circulation system includes a circulation pump, an outlet pipeline entering the heat exchange chamber and an inlet pipeline entering the coolant chamber, wherein the outlet pipeline has multiple branches, each branch is connected to a different height of the coolant chamber, a first solenoid valve is installed on each branch, and several groups of temperature sensors are also arranged in the coolant chamber, each branch corresponds to a group of temperature sensors, when the corresponding temperature sensor detects that the temperature exceeds the set value, the first solenoid valve on the corresponding branch is opened, when it is detected that multiple groups of temperature sensors exceed the set value, only the first solenoid valve corresponding to the highest temperature is opened, if the temperature does not exceed the set value, then the first solenoid valve on the branch corresponding to the highest temperature is opened.

2. A heat dissipation cabinet according to claim 1, characterized in that: The branch line is fixedly passed through the side wall of the cooling liquid cavity and is sealedly connected with the side wall of the cooling liquid cavity. One end of the branch line located in the cooling liquid cavity is provided with a transfer interface.

3. A heat dissipation cabinet according to claim 2, characterized in that: The adapter interface is a threaded interface, and an introduction pipe is threadedly connected to the adapter interface.

4. A heat dissipation cabinet according to claim 3, characterized in that: The inlet pipe has a plurality of bendable branch pipes, and the branch pipes are connected to the inlet pipe by plugging.

5. The heat dissipation cabinet according to claim 2, characterized in that: The adapter interface is connected to an inlet pipe having a first port and a second port. The first port is sealed and rotatably connected to the adapter interface, and a projection of the second port on the side wall of the cooling liquid chamber is staggered with a projection of the first port on the side wall of the cooling liquid chamber.

6. The heat dissipation cabinet according to claim 2, characterized in that: The transfer interface is an interface that can be bent and shaped.

7. The heat dissipation cabinet according to claim 1, characterized in that: Each group of temperature sensors includes a plurality of temperature sensors, and the plurality of temperature sensors are distributed in the same horizontal plane or at the upper and lower ends of the same horizontal plane.

8. The heat dissipation cabinet according to claim 1, characterized in that: A storage cavity is provided at the bottom of the cabinet, and a discharge pipe is separately connected to the bottom of each branch. The discharge pipe is located between the first solenoid valve and the side wall of the cooling liquid cavity. One end of the discharge pipe extends into the storage cavity, and the other end is connected to the branch. A solenoid valve 1 is provided on each of the discharge pipes, and a suction pipe is connected to the liquid outlet pipeline. The suction pipe is inserted into the storage cavity, and a solenoid valve 2 is installed on the suction pipe. A water level gauge is installed in the storage cavity.

9. The heat dissipation cabinet according to claim 8, characterized in that: A cavity is formed between the storage cavity and the cabinet, and both ends of the cavity are connected.

10. The heat dissipation cabinet according to claim 5, characterized in that: The heat dissipation cabinet also includes a cabinet door, and the cabinet door is a liquid cooling door.

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