Heat dissipation mechanism for circulating water cooling system

Abstract

The heat dissipation mechanism of the circulating water cooling system comprises a heat dissipation unit, a water cooling unit, a water inlet pipe and a backflow pipe. The heat dissipation unit and the water cooling unit are of a flat structure and are the same in size, and the heat dissipation unit and the water cooling unit are stacked in the mode that the heat dissipation unit is located above and the water cooling unit is located below. The heat dissipation unit and the water cooling unit are internally provided with water containing cavities of flat structures, and heat insulation pads for preventing heat exchange of the heat dissipation unit and the water cooling unit are arranged between the heat dissipation unit and the water cooling unit. The two ends of the water inlet pipe communicate with the lower side of the side wall of the heat dissipation unit and the lower side of the side wall of the water cooling unit correspondingly. The two ends of the backflow pipe communicate with the upper side of the side wall of the heat dissipation unit and the upper side of the side wall of the water cooling unit correspondingly. Cooling water circularly flows in the heat dissipation unit and the water cooling unit under the action of the temperature difference so as to achieve heat dissipation of the heat source. The cooling water spontaneously and circularly flows under the temperature difference effect, thereby being energy-saving and environment- And in the technical scheme provided by the invention, the temperature of the cooling water is not lower than the air temperature, so that the condensation phenomenon is avoided, and the safety of the heat source can be effectively ensured.

Description

Technical Field

[0001] The invention relates to a heat dissipation mechanism, in particular to a heat dissipation mechanism for a circulating water cooling system of an energy storage device. Background Art

[0002] Energy storage refers to the process of storing energy through a medium or device and releasing it when needed. The application directions of energy storage technology include photovoltaic energy storage, new energy vehicle battery energy storage, etc. With the development of energy storage technology and applications, high energy density, long service life and safety of use are the current research directions of energy storage technology, and are also the performance that is focused on when energy storage technology is applied.

[0003] Among them, the energy storage device has a temperature rise phenomenon when working. In order to ensure the safety of the energy storage device, it is necessary to ensure that its temperature is within a controllable safety range, so a special heat dissipation mechanism needs to be set up for the energy storage device. However, the current heat dissipation mechanism will have condensation during the working process, and the condensation soaking the energy storage device will also seriously affect the safety of the use of the energy storage device.

[0004] In order to avoid the secondary hidden dangers caused by condensation, it is necessary to provide an anti-condensation heat dissipation mechanism to further improve the safety of energy storage equipment. Summary of the invention

[0005] The object of the present invention is to provide a circulating water cooling system heat dissipation system to solve the condensation problem.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a heat dissipation mechanism of a circulating water cooling system, which is arranged on the upper side of an energy storage device to dissipate heat for the energy storage device; the heat dissipation mechanism for the circulating water cooling system includes a heat dissipation unit, a water cooling unit, a water inlet pipe and a return pipe; the heat dissipation unit and the water cooling unit are both flat structures and have the same size, and the two are stacked with the heat dissipation unit on the top and the water cooling unit on the bottom; the heat dissipation unit and the water cooling unit both have a flat water-containing cavity inside, the heat dissipation unit and the water cooling unit are both made of metal material, and there is an insulating pad between the heat dissipation unit and the water cooling unit to block heat exchange between the two; the two ends of the water inlet pipe are respectively connected to the lower side of the side wall of the heat dissipation unit and the lower side of the side wall of the water cooling unit, and the two ends of the return pipe are respectively connected to the upper side of the side wall of the heat dissipation unit and the upper side of the side wall of the water cooling unit; the cooling water circulates in the heat dissipation unit and the water cooling unit under the action of the temperature difference to achieve heat dissipation of the energy storage device.

[0007] Compared with the prior art, the heat dissipation mechanism for the circulating water cooling system provided by the present invention is through the stacked flat heat dissipation unit and the water cooling unit, and the cooling water circulates in the heat dissipation unit and the water cooling unit under the action of the temperature difference. Among them, the low-temperature cooling water in the lower layer of the water containing cavity of the heat dissipation unit enters the lower layer of the water containing cavity of the water cooling unit through the water inlet pipe, and exchanges heat with the energy storage device attached to the bottom of the water containing cavity of the water cooling unit, absorbs the heat energy of the energy storage device, and the temperature rises. The high-temperature cooling water flows to the upper layer of the water containing cavity of the water cooling unit under the action of the temperature difference, and flows to the upper layer of the heat dissipation unit through the return pipe. The high-temperature cooling water dissipates heat to the outside in the upper layer of the heat dissipation unit, and the low-temperature cooling water after cooling comes to the lower layer of the water containing cavity of the heat dissipation unit; the cooling water circulates in the heat dissipation unit and the water cooling unit to achieve heat dissipation of the energy storage device. According to the heat dissipation mechanism for the circulating water cooling system provided by the present invention, there is no need to set up an additional power mechanism and cooling mechanism, and the cooling water can circulate spontaneously by relying on the temperature difference effect, which is energy-saving and environmentally friendly. In the technical solution provided by the present invention, whether it is high-temperature cooling water or low-temperature cooling water, its temperature is not lower than the air temperature, and condensation will not occur, which can effectively ensure the safety of the energy storage equipment.

[0008] Preferably, the water containing chambers of the heat dissipation unit and the water cooling unit are respectively provided with partition plates, and the partition plates are horizontally arranged to separate the two water containing chambers into upper and lower areas respectively; the water inlet pipes are respectively connected to the lower areas of the water containing chambers of the heat dissipation unit and the water cooling unit, and the return pipes are respectively connected to the upper areas of the water containing chambers of the heat dissipation unit and the water cooling unit.

[0009] Specifically, at least one side of the two partition plates is respectively fixedly connected to the side walls of the heat dissipation unit and the water cooling unit connecting the water inlet pipe and the return pipe; the two partition plates are spaced apart from the side walls of the heat dissipation unit and the water cooling unit to form an avoidance position for connecting the upper area of ​​the water supply chamber and the lower area of ​​the water supply chamber to realize cooling water circulation.

[0010] Preferably, the number of the water inlet pipe and the number of the return pipe are respectively greater than or equal to one.

[0011] In a preferred embodiment, a one-way valve for limiting the flow direction of cooling water is provided in the water inlet pipe and / or the return pipe.

[0012] Preferably, heat dissipation fins are arranged on the outside of the heat dissipation unit, and the heat dissipation fins cover the upper surface and side walls of the heat dissipation unit to dissipate the heat of cooling water in the heat dissipation unit.

[0013] Preferably, the heat dissipation mechanism for the circulating water cooling system also includes a pressure pump, which is arranged in the water inlet pipe or the return pipe, and accelerates the circulation of cooling water by applying pressure to the cooling water in the water inlet pipe or the return pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the heat dissipation mechanism used in the circulating water cooling system of the present invention.

[0015] Figure 2 It is a schematic diagram of the internal structure of the first embodiment of the heat dissipation mechanism for the circulating water cooling system of the present invention.

[0016] Figure 3 It is a schematic diagram of the internal structure of another area of ​​the first embodiment of the heat dissipation mechanism for the circulating water cooling system of the present invention.

[0017] Figure 4 It is a schematic diagram of the internal structure of the second embodiment of the heat dissipation mechanism for the circulating water cooling system of the present invention.

[0018] Figure 5 It is a schematic diagram of the internal structure of another area of ​​the second embodiment of the heat dissipation mechanism for the circulating water cooling system of the present invention. DETAILED DESCRIPTION

[0019] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0020] The present invention provides a circulating water cooling system heat dissipation mechanism, which is suitable for being arranged on the upper side of an energy storage device (not shown) to dissipate heat for the energy storage device. It is understandable that the energy storage device can be a battery pack, power supply, server or other energy storage device that requires heat dissipation, and is particularly suitable for electrical components that need to maintain a dry environment.

[0021] like Figure 1 and Figure 2 As shown, the heat dissipation mechanism for the circulating water cooling system provided by the present invention includes a heat dissipation unit 100 , a water cooling unit 200 , a water inlet pipe 400 and a return pipe 500 . Among them, the heat dissipation unit 100 and the water cooling unit 200 are both flat in structure and have the same size, and the two are stacked with the heat dissipation unit 100 on the top and the water cooling unit 200 on the bottom; the heat dissipation unit 100 and the water cooling unit 200 both have flat water containing chambers 110 and 210 inside, the heat dissipation unit 100 and the water cooling unit 200 are both made of metal material, and there is an insulation pad 300 between the heat dissipation unit 100 and the water cooling unit 200 to block the heat exchange between the two; the two ends of the water inlet pipe 400 are respectively connected to the lower side of the side wall of the heat dissipation unit 100 and the lower side of the side wall of the water cooling unit 200, and the two ends of the return pipe 500 are respectively connected to the upper side of the side wall of the heat dissipation unit 100 and the upper side of the side wall of the water cooling unit 200; the cooling water circulates in the heat dissipation unit 100 and the water cooling unit 200 through the water inlet pipe 400 and the return pipe 500 under the action of the temperature difference to achieve heat dissipation of the energy storage device.

[0022] Understandable:

[0023] In the heat dissipation mechanism for the circulating water cooling system provided by the present invention, the flat heat dissipation unit 100 and the water cooling unit 200 are stacked up and down, and the heat insulation is achieved through the heat insulation pad 300 between the two. The heat dissipation unit 100 and the water cooling unit 200 are made of metal materials with better heat exchange performance, so that the cooling water in the heat dissipation unit 100 and the water cooling unit 200 can exchange heat with the outside at a faster speed. Among them, the water cooling unit 200 located on the lower side has its lower surface attached to the energy storage device, and absorbs heat from the energy storage device, and the temperature is higher; while the heat dissipation unit 100 located on the upper side can exchange heat with the outside, and the temperature is closer to the external room temperature and the temperature is lower.

[0024] There is a difference in water temperature between the heat dissipation unit 100 and the water cooling unit 200, resulting in different water temperature densities between the two. For example, when the cooling water temperature in the heat dissipation unit 100 is 25°C, the cooling water density therein is 0.997g / ml; when the water temperature in the water cooling unit 200 is 60°C, the cooling water density therein is 0.9832g / ml. The density difference caused by the water temperature causes the cooling water to circulate in the heat dissipation unit 100 and the water cooling unit 200. The cooling water in the lower water cooling unit 200 absorbs heat and rises in temperature, then flows upward to the heat dissipation unit 100 through the return pipe 500. The cooling water in the heat dissipation unit 100 cools down after heat dissipation and then flows downward to the water cooling unit 200 through the water inlet pipe 400. The density difference of the water temperature agent is used to realize the spontaneous circulation of the cooling water, thereby realizing the heat dissipation and cooling of the energy storage device by the heat dissipation mechanism of the circulating water cooling system of the present invention.

[0025] According to the heat dissipation mechanism for a circulating water cooling system provided by the present invention, the cooling water temperatures of the heat dissipation unit 100 and the water cooling unit 200 are not lower than room temperature, so that condensation will not occur on the outer surface of the heat dissipation mechanism for a circulating water cooling system provided by the present invention, effectively preventing the possible harm of condensation to the energy storage device and improving safety.

[0026] Preferably, the heat dissipation unit 100 is provided with heat dissipation fins (not shown in the figure) on the outside, and the heat dissipation fins cover the upper surface and side walls of the heat dissipation unit 100 to dissipate the cooling water in the heat dissipation unit 100, so that the cooling water in the heat dissipation unit 100 has better heat dissipation efficiency. The heat dissipation fins are a conventional structure for heat dissipation, and those skilled in the art can adaptably set the heat dissipation fins according to the external structure of the heat dissipation unit 100. This is common knowledge in the art and does not require creative work, so it will not be described here.

[0027] like Figure 1-Figure 3 FIG. 1 is a first embodiment of the heat dissipation mechanism for a circulating water cooling system of the present invention. Figure 1-Figure 3As shown, the water containing chambers 110 and 210 of the heat dissipation unit 100 and the water cooling unit 200 are respectively provided with partition plates 600, and the partition plates 600 are horizontally arranged to separate the two water containing chambers 110 and 210 into upper and lower areas respectively; the water inlet pipe 400 is respectively connected to the lower areas 111 and 211 of the water containing chambers of the heat dissipation unit 100 and the water cooling unit 200, and the return pipe 500 is respectively connected to the upper areas 112 and 212 of the water containing chambers of the heat dissipation unit 100 and the water cooling unit 200. In this preferred embodiment, the low-temperature cooling water that enters the water chamber 210 of the water cooling unit 200 through the water inlet pipe 400 first enters the lower area 212 of the water chamber 210 and is located closer to the energy storage device, so that it can absorb heat from the energy storage device more quickly and reduce the temperature of the energy storage device; after absorbing the heat, the high-temperature cooling water moves upward to the lower area 211 of the water chamber 210, and then enters the upper area 112 of the water chamber of the heat dissipation unit 100 through the reflux pipe 500. After sufficient heat dissipation and cooling, the low-temperature cooling water enters the lower area 111 of the water chamber of the heat dissipation unit 100, and comes to the lower area 212 of the water chamber 210 through the water inlet pipe 400, thereby realizing the circulation of cooling water.

[0028] In this preferred embodiment, by respectively arranging partition plates 600 in the water containing chambers 110 and 210, the circulation path of the cooling water is extended, so that the low-temperature cooling water and the energy storage device, and the high-temperature cooling water and the external heat dissipation surface can have more sufficient contact, thereby improving the heat absorption and heat dissipation efficiency; at the same time, the high and low temperature difference of the cooling water is made more obvious, thereby improving the spontaneous circulation flow rate of the cooling water.

[0029] More specifically, Figure 2 and Figure 3 As shown, at least one side of the two partition plates 600 is respectively fixedly connected to the side wall of the heat dissipation unit 100 and the water cooling unit 200 that connects the water inlet pipe 400 and the return pipe 500; the side of the two partition plates away from the water inlet pipe 400 and the return pipe 500 is spaced apart from the side wall of the heat dissipation unit 100 and the water cooling unit 200 to form a bypass position for connecting the upper area 112, 212 of the water chamber and the lower area 111, 211 of the water chamber to realize the circulation of cooling water. Specifically in this embodiment, the side of the two partition plates 600 close to the water inlet pipe 400 and the return pipe 500 and the left and right sides adjacent thereto are respectively sealedly connected to the inner wall of the water chamber 110, 210 to block the cooling water, and the side of the two partition plates 600 away from the water inlet pipe 400 and the return pipe 500 is spaced apart from the inner wall of the water chamber 110, 210 to form a bypass position for connecting the cooling water to realize the circulation reflux.

[0030] In the present embodiment, the number of the water inlet pipe 400 and the return pipe 500 are both one; however, this number is not limiting, and the number of the water inlet pipe 400 and the return pipe 500 may also be multiple, and the multiple water inlet pipes 400 and the return pipe 500 are evenly spaced to accelerate the circulation of cooling water.

[0031] In a preferred embodiment, a one-way valve is provided in the water inlet pipe 400 and / or the return pipe 500 to limit the flow direction of the cooling water, thereby preventing abnormal factors caused by external disturbances or other reasons from affecting the normal circulation flow direction of the cooling water and preventing the cooling water from flowing back.

[0032] Preferably, the heat dissipation mechanism for the circulating water cooling system provided by the present invention further includes a pressure pump (not shown). The pressure pump is arranged in the water inlet pipe 400 or the return pipe 500, and accelerates the circulation of the cooling water by applying pressure to the cooling water in the water inlet pipe 400 or the return pipe 500. It can be understood that the cooling water circulation speed achieved by relying solely on the density difference caused by the temperature difference is not very fast. The provision of a pressure pump can provide power for the circulation of the cooling water, accelerate the cooling water circulation speed, and thus improve the heat dissipation efficiency.

[0033] Combination Figure 1-Figure 3 As shown, the working process of the first embodiment of the heat dissipation mechanism for the circulating water cooling system of the present invention is described in detail:

[0034] The heat dissipation mechanism of the circulating water cooling system is arranged on the upper side of the energy storage device, the water cooling unit 200 is close to the energy storage device, and the heat dissipation unit 100 is far away from the energy storage device;

[0035] The low-temperature cooling water in the lower layer 111 of the water chamber of the heat dissipation unit 100 enters the lower layer 211 of the water chamber of the water cooling unit 200 through the water inlet pipe 400, and performs heat exchange with the energy storage device attached to the bottom of the water cooling unit 200, absorbs the heat energy of the energy storage device, and the temperature of the cooling water increases. Under the action of the temperature difference, the high-temperature cooling water flows to the upper layer 212 of the water chamber of the water cooling unit 200, and flows to the upper layer 112 of the water chamber of the heat dissipation unit 100 through the reflux pipe 500. The high-temperature cooling water dissipates heat to the outside in the upper layer 112 of the water chamber, and the low-temperature cooling water after cooling comes to the lower layer 111 of the water chamber of the heat dissipation unit 100; the cooling water circulates in the heat dissipation unit 100 and the water cooling unit 200 to achieve heat dissipation of the energy storage device.

[0036] Combination Figure 4 and Figure 5As shown, the second embodiment of the heat dissipation mechanism for the circulating water cooling system of the present invention. In this embodiment, no partition plate is set in the heat dissipation unit 100' and the water cooling unit 200'. Under the action of the density difference caused by the temperature difference, the cooling water in the water chambers 110' and 210' flows to the lower side with low-temperature cooling water and flows to the upper side with high-temperature cooling water; wherein, the low-temperature cooling water on the lower side of the water chamber 110' enters the upper side of the water chamber 210' through the water inlet pipe 400', and flows to the lower side of the water chamber 210' and absorbs heat and heats up under the action of the density difference caused by the temperature difference; the cooling water on the lower side of the water chamber 210' absorbs heat and heats up and flows upward to the upper side of the water chamber 210', and flows back to the upper side of the water chamber 110' of the heat dissipation unit 100' through the return pipe 500'; the high-temperature cooling water on the upper side of the water chamber 110' flows to the lower side of the water chamber 110' after heat dissipation and cooling. This achieves the circulation of cooling water.

[0037] According to the heat dissipation mechanism for the circulating water cooling system provided by the present invention, the cooling water circulates in the heat dissipation unit 100 and the water cooling unit 200 under the action of the temperature difference through the stacked flat heat dissipation unit 100 and the water cooling unit 200. Among them, the low-temperature cooling water in the lower layer of the water containing chamber 110 of the heat dissipation unit 100 enters the lower layer of the water containing chamber 210 of the water cooling unit 200 through the water inlet pipe 400, and performs heat exchange with the energy storage device attached to the bottom of the water containing chamber 210 of the water cooling unit 200, absorbs the heat energy of the energy storage device, and the temperature rises. The high-temperature cooling water flows to the upper layer of the water containing chamber 210 of the water cooling unit 200 under the action of the temperature difference, and flows to the upper layer of the heat dissipation unit 100 through the return pipe 500. The high-temperature cooling water dissipates heat to the outside at the upper layer of the heat dissipation unit 100, and the low-temperature cooling water after cooling comes to the lower layer of the water containing chamber 110 of the heat dissipation unit 100; the cooling water circulates in the heat dissipation unit 100 and the water cooling unit 200 to achieve heat dissipation of the energy storage device. According to the heat dissipation mechanism for the circulating water cooling system provided by the present invention, there is no need to set up an additional power mechanism and cooling mechanism, and the cooling water can circulate spontaneously by relying on the temperature difference effect, which is energy-saving and environmentally friendly. In the technical solution provided by the present invention, whether it is high-temperature cooling water or low-temperature cooling water, its temperature is not lower than the air temperature, and condensation will not occur, which can effectively ensure the safety of the energy storage equipment.

[0038] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A heat dissipation mechanism of a circulating water cooling system, characterized in that: It is arranged on the upper side of the heat source to dissipate the heat from the heat source; the heat dissipation mechanism of the circulating water cooling system includes a heat dissipation unit, a water cooling unit, a water inlet pipe and a return pipe; the heat dissipation unit and the water cooling unit are both flat structures and have the same size, and the two are stacked with the heat dissipation unit on the top and the water cooling unit on the bottom; the heat dissipation unit and the water cooling unit both have a flat water-containing cavity inside, the heat dissipation unit and the water cooling unit are both made of metal material, and there is an insulating pad between the heat dissipation unit and the water cooling unit to block the heat exchange between the two; the two ends of the water inlet pipe are respectively connected to the lower side of the side wall of the heat dissipation unit and the lower side of the side wall of the water cooling unit, and the two ends of the return pipe are respectively connected to the upper side of the side wall of the heat dissipation unit and the upper side of the side wall of the water cooling unit; the cooling water passes through the water inlet pipe and the return pipe under the action of the temperature difference, and circulates in the heat dissipation unit and the water cooling unit to achieve heat dissipation of the heat source.

2. The heat dissipation mechanism for a circulating water cooling system according to claim 1, characterized in that: The water containing chambers of the heat dissipation unit and the water cooling unit are respectively provided with partition plates, and the partition plates are horizontally arranged to separate the two water containing chambers into upper and lower areas respectively; the water inlet pipes are respectively connected to the lower areas of the water containing chambers of the heat dissipation unit and the water cooling unit, and the return pipes are respectively connected to the upper areas of the water containing chambers of the heat dissipation unit and the water cooling unit.

3. The heat dissipation mechanism for a circulating water cooling system according to claim 2, characterized in that: At least one side of the two partition plates is respectively fixedly connected to the side walls of the heat dissipation unit and the water cooling unit connecting the water inlet pipe and the return pipe; the two partition plates are spaced apart from the side walls of the heat dissipation unit and the water cooling unit on one side of the water inlet pipe and the return pipe to form an avoidance position for connecting the upper area of ​​the water supply chamber and the lower area of ​​the water supply chamber to realize cooling water circulation.

4. The heat dissipation mechanism for a circulating water cooling system according to claim 1, characterized in that: The number of the water inlet pipe and the number of the return pipe are respectively greater than or equal to one.

5. The heat dissipation mechanism for a circulating water cooling system according to any one of claims 1 to 3, characterized in that: A one-way valve for limiting the flow direction of cooling water is arranged in the water inlet pipe and / or the return pipe.

6. The heat dissipation mechanism of the circulating water cooling system according to claim 1, characterized in that: The heat dissipation unit is provided with heat dissipation fins on the outside thereof, and the heat dissipation fins cover the upper surface and the side wall of the heat dissipation unit to dissipate the cooling water in the heat dissipation unit.

7. The heat dissipation mechanism for a circulating water cooling system according to claim 1, characterized in that: The heat dissipation mechanism for the circulating water cooling system also includes a pressure pump, which is arranged in the water inlet pipe or the return pipe and accelerates the circulation of the cooling water by applying pressure to the cooling water in the water inlet pipe or the return pipe.

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