Heat dissipation device and gateway box thereof

Abstract

The utility model relates to the technical field of heat dissipation devices, and provides a heat dissipation device and a gateway box thereof. The device comprises a heating element, a heat absorption chamber, a heat dissipation chamber and a water pump, the heating element is located in the heat absorption chamber, and the heat absorption chamber is filled with cooling liquid; the upper ends and the lower ends of the heat dissipation chambers are communicated with the heat absorption chamber through pipelines, the cooling liquid circularly flows in the heat absorption chamber and the heat dissipation chambers through pipelines, air is reserved in a space formed by communication of the heat absorption chamber and the heat dissipation chambers, the number of the heat dissipation chambers is at least two, and each heat dissipation chamber is independently communicated with the heat absorption chamber. The water pump is connected in series to a pipeline, communicated with the heat absorption chamber, at the lower end of the heat dissipation chamber; and the water pump drives the cooling liquid to sequentially form a circulating water path between the heat absorption chamber and different heat dissipation chambers. According to the heat dissipation device and the gateway box thereof, the plurality of heat dissipation chambers and the heat absorption chamber can form a circulating water path in sequence, so that intermittent work of the heat dissipation chambers is realized, and continuous temperature rise of the heat dissipation chambers is avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation device technology, and in particular to a heat dissipation device and its gateway box. Background Technology

[0002] A gateway box is an electronic device used to improve network speed and stability. To meet people's network usage needs, gateway boxes need to remain operational for extended periods; therefore, improved heat dissipation is essential to prevent them from overheating and malfunctioning during prolonged use.

[0003] In the existing technology, the commonly used efficient heat dissipation method is water cooling. Water cooling uses coolant as a medium for heat transfer. Coolant has a stronger ability to absorb heat from the equipment. At the same time, coolant has a larger surface area and a faster heat dissipation speed. However, the heat dissipation effect of coolant is affected by its own temperature. The higher the temperature of coolant and the closer it is to the temperature of the heat-generating component, the slower the rate at which it absorbs heat from the heat-generating component. As cooling continues, the temperature of coolant continues to rise and gets closer and closer to the temperature of the heat-generating component.

[0004] Because the temperature of the coolant is limited by its boiling point, water cooling performs very well in the heat dissipation of some high-temperature heat-generating components. However, when the gateway box is used as a heat-generating component, the temperature of the heat-generating component is relatively low, which can lead to a situation where the temperature difference between the coolant and the heat-generating component is small, thus reducing the heat dissipation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a heat dissipation device and its gateway box. The heat dissipation device and its gateway box can form a circulating water path through multiple heat dissipation chambers and heat absorption chambers in sequence, so as to realize the intermittent operation of the heat dissipation chambers and avoid the continuous rise of the heat dissipation chamber temperature.

[0006] This utility model provides a heat dissipation device, including:

[0007] The heat absorption chamber is filled with coolant;

[0008] The heat dissipation chamber is connected to the heat absorption chamber through pipes at both its upper and lower ends. The coolant circulates between the heat absorption chamber and the heat dissipation chamber through pipes. Air is left in the space formed by the connection between the heat absorption chamber and the heat dissipation chamber. There are at least two heat dissipation chambers, and each heat dissipation chamber is individually connected to the heat absorption chamber.

[0009] A water pump is connected in series with the pipe at the lower end of the heat dissipation chamber to the heat absorption chamber. The water pump drives the coolant to form a circulating water path between the heat absorption chamber and different heat dissipation chambers.

[0010] Preferably, the number of water pumps is the same as the number of heat dissipation chambers, and each heat dissipation chamber is connected to a separate water pump, which is started sequentially and operates intermittently.

[0011] Preferably, the heat dissipation device further includes a reversing valve, and the number of water pumps is one. One end of the water pump is connected to the heat absorption chamber, and the other end of the water pump is connected to the reversing valve. The reversing valve is connected to each heat dissipation chamber. The reversing valve sequentially connects the water pump and each heat dissipation chamber, and the water pump operates continuously.

[0012] Preferably, the water pump outlet faces the heat absorption chamber, the vertical height of the heat absorption chamber is lower than that of the heat dissipation chamber, and the liquid level submerges the heat absorption chamber, with air evenly distributed inside each heat dissipation chamber.

[0013] Preferably, the water pump outlet faces the heat dissipation chamber, the heat absorption chamber is vertically higher than the heat dissipation chamber, the liquid level submerges the heat dissipation chamber, and all the air is located inside the heat absorption chamber.

[0014] Preferably, the heat dissipation chamber is a columnar hollow shell, and the heat dissipation chamber is integrally formed with through-holes for heat dissipation, and the heat dissipation chamber is honeycomb shaped.

[0015] Preferably, the heat dissipation device further includes an electronic control component, which includes a temperature sensor and an external control center. Each heat dissipation chamber is equipped with a temperature sensor, each temperature sensor is electrically connected to the external control center, and the external control center is electrically connected to the water pump.

[0016] A gateway box uses the aforementioned heat dissipation device. The gateway box includes a heat-generating element, a heat sink fixedly connected to the heat-generating element, a heat absorption chamber snapped onto the heat-generating element, the heat sink located inside the heat absorption chamber, and the heat sink immersed in coolant inside the heat absorption chamber.

[0017] Preferably, the gateway box further includes a housing and a fan. The heat absorption chamber, heat dissipation chamber, water pump, and heat-generating element are all fixedly assembled in the housing. The housing includes a side wall and a roof. The side wall and the roof are fixedly connected by a connecting column. An air inlet is provided on the side wall. The fan is embedded in the air inlet, and the fan outlet faces the inside of the housing.

[0018] Preferably, the canopy is a centrally symmetrical folded sheet metal part, with each corner of the canopy folded upwards and the midpoint of each side of the canopy folded downwards.

[0019] The technical solution of this utility model transfers heat from the heat absorption chamber to the heat dissipation chamber by forming a circulating water channel through the heat dissipation chamber and the heat absorption chamber. Multiple heat dissipation chambers sequentially form a circulating water channel with the heat dissipation chamber, which avoids the continuous rise in temperature of a single heat dissipation chamber. At the same time, under the premise that the total volume of the heat dissipation chamber remains unchanged, the more heat dissipation chambers there are, the smaller the volume of a single heat dissipation chamber, and the more drastic the temperature change of a single heat dissipation chamber, which can create a larger temperature difference to accelerate heat transfer. This not only avoids the continuous rise in the temperature of the heat dissipation chamber, but also further increases the overall heat dissipation efficiency of the heat dissipation chamber. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an isometric view of a heat dissipation device according to the present invention;

[0022] Figure 2 for Figure 1 The first assembly drawing of the heat dissipation device;

[0023] Figure 3 for Figure 1 The second assembly drawing of the heat dissipation device;

[0024] Figure 4 for Figure 1 Axonometric view of the heat dissipation chamber in the central heat dissipation device;

[0025] Figure 5 This is an isometric view of the housing of a gateway box according to the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Heat absorption chamber; 2. Heat dissipation chamber; 3. Water pump; 4. Reversing valve; 5. Temperature sensor; 6. Heating element; 71. Side wall; 72. Ceiling; 8. Fan; A. Liquid level. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 a limitation of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Combination Figures 1 to 4 As shown, the heat dissipation device provided by this utility model includes a heat absorption chamber 1, a heat dissipation chamber 2, and a water pump 3.

[0032] Combination Figures 1 to 4 As shown, the heat absorption chamber 1 is filled with coolant; both the upper and lower ends of the heat dissipation chamber 2 are connected to the heat absorption chamber 1 through pipes, and the coolant circulates in the heat absorption chamber 1 and the heat dissipation chamber 2 through the pipes. Air is left in the space formed by the connection between the heat absorption chamber 1 and the heat dissipation chamber 2. There are at least two heat dissipation chambers 2, and each heat dissipation chamber 2 is individually connected to the heat absorption chamber 1; the water pump 3 is connected in series to the pipe connecting the lower end of the heat dissipation chamber 2 to the heat absorption chamber 1, and the water pump 3 drives the coolant to form a circulating water path between the heat absorption chamber 1 and different heat dissipation chambers 2 in sequence.

[0033] In this embodiment, a circulating water path is formed by the heat dissipation chamber 2 and the heat absorption chamber 1 to transfer the heat in the heat absorption chamber 1 to the heat dissipation chamber 2. Multiple heat dissipation chambers 2 sequentially form a circulating water path with the heat dissipation chamber 2, which avoids the continuous rise in temperature of a single heat dissipation chamber 2. At the same time, under the premise that the total volume of the heat dissipation chambers 2 remains unchanged, the more heat dissipation chambers 2 there are, the smaller the volume of a single heat dissipation chamber 2 is, and the more drastic the temperature change of a single heat dissipation chamber 2 is, the larger the temperature difference can be formed to accelerate the heat transfer. This not only avoids the continuous rise in temperature of the heat dissipation chamber 2, but also further increases the overall heat dissipation efficiency of the heat dissipation chamber 2.

[0034] In this embodiment, in addition to driving the water flow, the water pump 3, when not in operation, can reduce the connectivity between the heat dissipation chamber 2 and the heat absorption chamber 1 by utilizing its own damping effect. When not in operation, it blocks the heat transfer between the heat dissipation chamber 2 and the heat absorption chamber 1. The presence of air also prevents the heat dissipation chamber 2 and the heat absorption chamber 1 from being directly connected through the coolant for heat transfer. The combined effect of the water pump 3 and the air can cut off the connection between the pipes of the heat dissipation chamber 2 and the heat absorption chamber 1, preventing the heat absorption chamber 1 from transferring heat to all the heat dissipation chambers 2 at the same time.

[0035] In some embodiments, combined with Figure 2 and Figure 3 As shown, the number of water pumps 3 is the same as the number of heat dissipation chambers 2. Each heat dissipation chamber 2 is connected to a separate water pump 3. The water pumps 3 are started sequentially and work intermittently. As the number of water pumps 3 increases, the working pressure of a single water pump 3 is lower, which helps to extend the service life of the water pump 3. It also makes the process of switching the circulating water path smoother and less prone to water hammer effect. At the same time, the circulating water path can be controlled more flexibly.

[0036] In some embodiments, combined with Figure 1 As shown, the heat dissipation device also includes a reversing valve 4. There is one water pump 3. One end of the water pump 3 is connected to the heat absorption chamber 1, and the other end of the water pump 3 is connected to the reversing valve 4. The reversing valve 4 is connected to each heat dissipation chamber 2. The reversing valve 4 sequentially connects the water pump 3 and each heat dissipation chamber 2. The water pump 3 works continuously. Through the reversing valve 4, one water pump 3 can drive multiple different circulating water paths, resulting in lower operating costs and lower control difficulty.

[0037] In some embodiments, combined with Figure 2 As shown, the water pump 3's outlet faces the heat absorption chamber 1. The vertical height of the heat absorption chamber 1 is lower than that of the heat dissipation chamber 2, and the liquid level is submerged in the heat absorption chamber 1. Air is evenly dispersed inside each heat dissipation chamber 2. After the water pump 3 transfers the coolant to the heat absorption chamber 1, the air pressure in the corresponding heat dissipation chamber 2 decreases, generating a siphon effect that drives the water flow to circulate between the heat absorption chamber 1 and the heat dissipation chamber 2. The liquid level submerging the heat absorption chamber 1 can block the connection between the heat dissipation chambers 2, ensuring the stability of the coolant circulation.

[0038] In some embodiments, combined with Figure 3 As shown, the water pump 3's outlet faces the heat dissipation chamber 2. The heat absorption chamber 1 is vertically higher than the heat dissipation chamber 2, and the liquid level is submerged in the heat dissipation chamber 2. All the air is located in the heat absorption chamber 1. The water pump 3 transfers the coolant to the heat dissipation chamber 2. Since the change in air pressure is slower than the change in liquid volume, the liquid in the heat dissipation chamber 2 will quickly react and enter the heat absorption chamber 1. The change in air pressure will not affect all of the heat dissipation chambers 2 at the same time. The liquid level submerging the heat dissipation chamber 2 can accelerate its reaction speed and improve the stability of the coolant circulation.

[0039] The two situations described above correspond to different positional relationships between the heat absorption chamber 1 and the heat dissipation chamber 2, and changes in the working state of the water pump 3, respectively. In actual use, the working state of the water pump 3 can be determined based on the positional relationship between the heat absorption chamber 1 and the heat dissipation chamber 2 to ensure the stability of the coolant circulation.

[0040] In some embodiments, combined with Figure 4 As shown, the heat dissipation chamber 2 is a columnar hollow shell with through-holes integrally formed on it. The heat dissipation chamber 2 is honeycomb-shaped, which gives it a larger surface area and allows it to dissipate heat into the air more quickly.

[0041] In some embodiments, combined with Figure 4 As shown, the heat dissipation device also includes an electronic control component, which includes a temperature sensor 5 and an external control center. Each heat dissipation chamber 2 is equipped with a temperature sensor 5, and each temperature sensor 5 is electrically connected to the external control center. The external control center is electrically connected to the water pump 3. The temperature sensor 5 can monitor the temperature change of each heat dissipation chamber 2 and transmit the temperature information to the external control center. The external control center combines the temperature information to control the working state of the water pump 3, which can more accurately grasp the timing of switching the circulating water path and avoid the temperature of a single heat dissipation chamber 2 from becoming too high.

[0042] The above content is for the case where multiple water pumps 3 drive the circulating water circuit one-to-one. When one water pump 3 drives multiple circulating water circuits through the reversing valve 4, the reversing valve 4 can be electrically connected to an external control center to ensure that the external control center can control the changes in the circulating water circuit.

[0043] The main components on the motherboard inside the gateway box include the processor, memory, power supply, and heat dissipation device. The processor releases a lot of heat during data processing, and the heat dissipation device is designed primarily to target the processor, the largest heat source.

[0044] Combination Figures 1 to 5As shown, the gateway box provided by this utility model uses the above-mentioned heat dissipation device. The gateway box includes a heat-generating element 6, on which a heat sink is fixedly connected. The heat absorption chamber 1 is fastened to the heat-generating element 6, and the heat sink is located inside the heat absorption chamber 1. The heat sink is submerged in the coolant inside the heat absorption chamber 1, so that the heat from the heat-generating element 6 can be quickly transferred to the coolant inside the heat absorption chamber 1.

[0045] In this embodiment, the heat-generating element 6 refers to the processor in the gateway box, and the heat sink is a metal object that quickly transfers the heat of the heat-generating element 6 to the heat absorption chamber 1 by increasing the contact area.

[0046] In some embodiments, combined with Figure 5 As shown, the gateway box also includes a housing and a fan 8. The heat absorption chamber 1, heat dissipation chamber 2, water pump 3, and heating element 6 are all fixedly assembled in the housing. The housing includes a side wall 71 and a roof 72, which are fixedly connected by a connecting column. An air inlet is provided on the side wall 71, and the fan 8 is embedded in the air inlet with its outlet facing the inside of the housing. After absorbing heat, the air expands and moves upward. The air outlet created by the connecting column between the side wall 71 and the roof 72 is higher than the air inlet, which can ensure that the hot air is quickly dissipated. The fan 8 can accelerate the airflow and increase the heat transfer efficiency.

[0047] In some embodiments, combined with Figure 5 As shown, the canopy 72 is a centrally symmetrical folded sheet metal part. The corners of the canopy 72 are folded upwards, and the midpoints of the sides of the canopy 72 are folded downwards. This special shape of the canopy 72 ensures that hot air can be smoothly dissipated outwards through the upward folding of the corners. At the same time, the downward folding of the midpoints of the sides of the canopy 72 can prevent liquids, debris and other objects from accumulating on it, thus improving its outdoor adaptability.

[0048] Working process: The heat-generating element 6 continuously transfers heat into the heat-absorbing chamber 1. The water pump 3 drives the coolant to form a circulating water path between the heat-absorbing chamber 1 and the heat-dissipating chamber 2, so that the heat is transferred to the heat-dissipating chamber 2 again. The heat-dissipating chamber 2 then continuously diffuses the heat into the air. When the temperature of the heat-dissipating chamber 2 rises to a certain temperature, the water pump 3 drives the coolant to form a circulating water path between the heat-absorbing chamber 1 and the next heat-dissipating chamber 2. The temperature of the previous heat-dissipating chamber 2 begins to drop because there is no longer any heat input. Each heat-dissipating chamber 2 forms a circulating water path with the heat-absorbing chamber 1 in sequence.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heat dissipation device, characterized in that, include: A heat-absorbing chamber (1) is filled with coolant; The heat dissipation chamber (2) is connected to the heat absorption chamber (1) through pipes at both the upper and lower ends. The coolant circulates in the heat absorption chamber (1) and the heat dissipation chamber (2) through pipes. Air is left in the space formed by the connection between the heat absorption chamber (1) and the heat dissipation chamber (2). There are at least two heat dissipation chambers (2), and each heat dissipation chamber (2) is individually connected to the heat absorption chamber (1). A water pump (3) is connected in series on the pipe connecting the heat dissipation chamber (2) to the heat absorption chamber (1). The water pump (3) drives the coolant to form a circulating water path between the heat absorption chamber (1) and different heat dissipation chambers (2).

2. The heat dissipation device according to claim 1, characterized in that, The number of water pumps (3) is the same as the number of heat dissipation chambers (2). Each heat dissipation chamber (2) is connected to a separate water pump (3). The water pumps (3) are started sequentially and work intermittently.

3. The heat dissipation device according to claim 1, characterized in that, It also includes a reversing valve (4), and the number of water pumps (3) is one. One end of the water pump (3) is connected to the heat absorption chamber (1), and the other end of the water pump (3) is connected to the reversing valve (4). The reversing valve (4) is connected to each heat dissipation chamber (2). The reversing valve (4) sequentially connects the water pump (3) and each heat dissipation chamber (2). The water pump (3) works continuously.

4. The heat dissipation device according to claim 1, characterized in that, The water pump (3) has its outlet facing the heat absorption chamber (1). The vertical height of the heat absorption chamber (1) is lower than that of the heat dissipation chamber (2), and the liquid level is submerged in the heat absorption chamber (1). Air is evenly dispersed inside each heat dissipation chamber (2).

5. The heat dissipation device according to claim 1, characterized in that, The water pump (3) has its outlet facing the heat dissipation chamber (2), the heat absorption chamber (1) is vertically higher than the heat dissipation chamber (2), and the liquid level is submerged in the heat dissipation chamber (2), with all the air located inside the heat absorption chamber (1).

6. The heat dissipation device according to claim 1, characterized in that, The heat dissipation chamber (2) is a columnar hollow shell, and the heat dissipation chamber (2) is integrally formed with through heat dissipation holes. The heat dissipation chamber (2) is honeycomb shaped.

7. The heat dissipation device according to claim 1, characterized in that, It also includes an electronic control component, which includes a temperature sensor (5) and an external control center. Each of the heat dissipation chambers (2) is equipped with a temperature sensor (5), and each of the temperature sensors (5) is electrically connected to the external control center, which is electrically connected to the water pump (3).

8. A gateway box, using the heat dissipation device as described in any one of claims 1-7, characterized in that, It includes a heating element (6), on which a heat sink is fixedly connected, and a heat absorption chamber (1) is fastened to the heating element (6). The heat sink is located inside the heat absorption chamber (1), and the heat sink is submerged in coolant inside the heat absorption chamber (1).

9. The gateway box according to claim 8, characterized in that, It also includes a housing and a fan (8). The heat absorption chamber (1), heat dissipation chamber (2), water pump (3) and heat-generating element (6) are all fixedly assembled in the housing. The housing includes a side wall (71) and a roof (72). The side wall (71) and the roof (72) are fixedly connected by a connecting column. An air inlet is provided on the side wall (71). The fan (8) is embedded in the air inlet, and the air outlet of the fan (8) faces the inside of the housing.

10. The gateway box according to claim 9, characterized in that, The canopy (72) is a centrally symmetrical folded sheet metal part. The corners of the canopy (72) are folded upwards, and the midpoints of the sides of the canopy (72) are folded downwards.

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