Composite liquid cooling plate structure

Abstract

The utility model discloses a composite liquid cooling plate structure, which comprises an upper cover plate, a lower cover plate, a heat exchange pipe, a liquid inlet water nozzle and a liquid outlet water nozzle, the upper cover plate is provided with a liquid inlet for introducing working liquid, and the liquid inlet is provided with a liquid inlet water nozzle; the lower cover plate is provided with a liquid outlet used for outputting working liquid, and the liquid outlet is provided with a liquid outlet water nozzle. The inner side of the lower cover plate is provided with a flow channel for working fluid to flow, the heat exchange pipe is installed in the flow channel, and a refrigerant is injected into the heat exchange pipe. The heat exchange structure is compounded in the liquid cooling plate, so that the heat exchange capacity of the liquid cooling plate can be greatly enhanced on the premise of not depending on appearance change and size and weight increase.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plates, and more specifically, to a composite liquid cooling plate structure. Background Art

[0002] In this era of rapid development, with the rapid development of 5G communication, the popularity rate of 5G base stations is getting higher and higher.

[0003] The heat dissipation device of the base station is closed natural heat dissipation. Due to the temperature difference, heat will transfer from a high-temperature object to a low-temperature object. After the heat is emitted from the components, it will first be absorbed by the internal devices, causing the device temperature to rise. The heat will then be conducted to the outer shell and then from the outer shell to the air. The specific heat transfer path is as follows: chip (heat source) → interface material → heat conduction structure → internal air → outer shell → external environment. However, due to the large size and high power consumption of the heat source, and if the heat generated during long-term operation is not dissipated in time, it will have a serious impact on the 5G communication signal and its service life. The existing heat dissipation solutions can only solve the higher requirements for heat dissipation performance of 5G base stations by stacking materials and enlarging the size.

[0004] In order to meet the higher requirements for heat dissipation performance of 5G base stations, it is necessary to consider the thermal design of the base station and to improve the heat exchange rate and reduce the heat transfer resistance as much as possible in the same space. Taking the traditional AAU heat dissipation as an example, the following solutions are generally adopted: reducing the temperature difference between the chip and the outer shell, and the specific means is to use a high thermal conductivity interface material and a heat bridge thermal block or heat pipe. However, when the outer shell is exposed to sunlight, the surface temperature can reach as high as 60°C to 90°C, resulting in limited actual heat dissipation effect; reducing the surface temperature of the outer shell, and the specific means is to increase the volume of the outer shell of the device, optimize the design of the heat dissipation fins, and increase the surface area; improving the temperature uniformity of the outer shell, and the specific means is to use a cast aluminum thickened outer shell. The above solutions rely on the increase and change of the appearance, size and weight of the product. However, in some actual application scenarios, there are certain limitations to the increase of the appearance, size and weight of the product. Therefore, there is an urgent need for a heat conduction performance. Summary of the Utility Model

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a composite liquid cooling plate structure, which is internally compounded with a unique heat exchange structure, and can greatly enhance the heat exchange capacity of the liquid cooling plate without relying on the change of appearance and the increase of size and weight.

[0006] To achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0007] A composite liquid cooling plate structure includes an upper cover plate, a lower cover plate, a heat exchange pipe, a liquid inlet nozzle and a liquid outlet nozzle;

[0008] The upper cover plate is provided with a liquid inlet for introducing the working liquid, and a liquid inlet nozzle is installed on the liquid inlet.

[0009] The lower cover plate is provided with a liquid outlet for outputting the working liquid, and a liquid outlet nozzle is installed on the liquid outlet.

[0010] The inner side of the lower cover plate is provided with a flow channel for the working liquid to flow through. The heat exchange tube is installed in the flow channel, and the inside of the heat exchange tube is filled with a refrigerant.

[0011] Further, the flow channel is of a serpentine structure.

[0012] Further, the heat exchange tube is a serpentine tube.

[0013] Further, a plurality of clamping seats are provided in the flow channel, and the heat exchange tube is clamped in the flow channel through the plurality of clamping seats.

[0014] Further, the liquid inlet corresponds to the inlet end of the flow channel, and the liquid outlet corresponds to the outlet end of the flow channel.

[0015] Further, the width of the flow channel is greater than the width of the heat exchange tube, and the heat exchange tube is arranged in the middle of the flow channel.

[0016] Further, the heat exchange tube is an aluminum tube or a copper tube.

[0017] Further, the heat exchange tube abuts against the upper cover plate.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The internal of the liquid cooling plate structure of the present utility model is compounded with a unique heat exchange structure, which is composed of a flow channel and a heat exchange tube. The heat exchange tube is arranged in the flow channel. The heat of the heat source is conducted to the heat exchange tube, and the heat exchange tube then transfers the heat to the flow channel. The working liquid in the flow channel absorbs the heat and thus transfers the heat to the distal lower-temperature environment for release. The present utility model realizes multi-directional heat exchange through the cooperation of the heat exchange tube and the working liquid in the flow channel, making the heat transfer more uniform, the heat absorption efficiency higher, greatly enhancing the overall heat exchange capacity, and can provide more efficient heat conduction performance, higher reliability and longer service life.

[0020] The compound liquid cooling plate structure of the present utility model can greatly enhance the heat exchange capacity without relying on the change of appearance, as well as the increase of size and weight, and has good matching compatibility. Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is the side view of the present utility model;

[0023] Figure 3 is the exploded structural schematic diagram of the present utility model;

[0024] Figure 4 is the structural schematic diagram of the cooperation between the heat exchange tube and the lower cover plate in the present utility model.

[0025] Explanation of the reference numerals in the figure:

[0026] 1: upper cover plate, 11: liquid inlet; 2: lower cover plate, 21: liquid outlet; 3: heat exchange tube; 4: flow channel, 41: inlet end, 42: outlet end; 5: card seat; 6: liquid inlet nozzle; 7: liquid outlet nozzle. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0030] As Figures 1 to 4 shown in a preferred embodiment of a composite liquid cooling plate structure, which includes an upper cover plate 1, a lower cover plate 2, a heat exchange tube 3, a liquid inlet nozzle 6, and a liquid outlet nozzle 7;

[0031] A liquid inlet 11 for introducing working fluid is provided on the upper cover plate 1, and a liquid inlet nozzle 6 is installed on the liquid inlet 11;

[0032] A liquid outlet 21 for outputting working fluid is provided on the lower cover plate 2, and a liquid outlet nozzle 7 is installed on the liquid outlet 21;

[0033] A flow channel 4 for the flow of working fluid is provided inside the lower cover plate 2. The heat exchange tube 3 is installed in the flow channel 4, and a refrigerant is injected into the interior of the heat exchange tube 3; the liquid inlet 11 of the upper cover plate 1 corresponds to the inlet end 41 of the flow channel 4, and the liquid outlet 21 of the lower cover plate 2 corresponds to the outlet end 42 of the flow channel 4.

[0034] In this embodiment, the flow channel 4 is of a serpentine structure; the heat exchange tube 3 is a serpentine tube, and the heat exchange tube 3 is of a flat structure, with both its upper and lower surfaces being flat structures. The upper surface of the heat exchange tube 3 abuts against the inner side surface of the upper cover plate 1. For the selection of materials, the heat exchange tube 3 is an aluminum tube or a copper tube.

[0035] The installation structure of the heat exchange tube 3 is specifically: a number of clamping seats 5 arranged in sequence are provided in the flow channel 4, and the heat exchange tube 3 is clamped in the flow channel 4 through the number of clamping seats 5.

[0036] The width of the flow channel 4 is greater than the width of the heat exchange tube 3, and the heat exchange tube 3 is centrally arranged in the flow channel 4. The working fluid introduced into the flow channel 4 flows in the flow channel space formed between the outer side wall of the heat exchange tube and the inner side wall of the flow channel.

[0037] In addition, the flow channel and the heat exchange tube in the present utility model are arranged in a serpentine structure, further improving the heat exchange effect.

[0038] The working principle of the present utility model is as follows:

[0039] The heat source transfers heat longitudinally to the heat exchange tube 3 through the heat source contact surface (the surface of the upper cover plate). The heat exchange tube 3 performs heat exchange through the refrigerant injected therein and transfers the heat horizontally to the flow channel 4. Driven by a pump, the low-temperature working fluid enters from the liquid inlet nozzle 6 through the liquid inlet 11 of the upper cover plate 1 and flows into the flow channel 4. The working fluid absorbs the heat energy transferred by the heat exchange tube 3, and the working fluid that has absorbed heat is output by the liquid outlet nozzle 7, thereby transferring the heat to the distal lower-temperature environment to release heat, and working in a cycle.

[0040] The present utility model realizes multi-directional heat exchange through the cooperation of the heat exchange tube and the working fluid in the flow channel, making the heat transfer more uniform, the heat absorption efficiency higher, greatly enhancing the overall heat exchange capacity, and can provide more efficient heat conduction performance and higher reliability and service life.

[0041] The composite liquid cooling plate structure of the present utility model can greatly enhance the heat exchange capacity without relying on the change of appearance and the increase of size and weight, and has good matching compatibility.

[0042] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model.

[0043] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite liquid cooling plate structure, characterized in that, It includes an upper cover plate, a lower cover plate, heat exchange tubes, a liquid inlet nozzle, and a liquid outlet nozzle; An inlet for introducing the working liquid is provided on the upper cover plate, and a liquid inlet nozzle is installed on the inlet; An outlet for outputting the working liquid is provided on the lower cover plate, and a liquid outlet nozzle is installed on the outlet; A flow channel for the working liquid to flow is provided inside the lower cover plate, the heat exchange tubes are installed in the flow channel, and a refrigerant is injected into the interior of the heat exchange tubes; The heat exchange tubes are of a flat structure, with both the upper and lower surfaces being planar structures, and the upper surface of the heat exchange tubes abuts against the inner side surface of the upper cover plate.

2. The composite liquid cooling plate structure according to claim 1, wherein The flow channel is of a serpentine structure.

3. The composite liquid cooling plate structure according to claim 2, wherein, The heat exchange tubes are serpentine tubes.

4. The composite liquid cooling plate structure according to claim 1, characterized in that A number of clamping seats are provided in the flow channel, and the heat exchange tubes are clamped in the flow channel through the number of clamping seats.

5. The composite liquid cooling plate structure according to claim 1, wherein The inlet corresponds to the inlet end of the flow channel, and the outlet corresponds to the outlet end of the flow channel.

6. The composite liquid cooling plate structure according to claim 1, characterized in that, The width of the flow channel is greater than the width of the heat exchange tubes, and the heat exchange tubes are centrally arranged in the flow channel.

7. The composite liquid cooling plate structure according to claim 1, wherein The heat exchange tubes are made of aluminum tubes or copper tubes.

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