Heat dissipation device and heat dissipation system

Abstract

The invention discloses a heat dissipation device and a heat dissipation system, and the heat dissipation device comprises a first air channel which is formed in an inner cavity of a working device in an equipment cabinet and is used for transmitting hot air generated by the working device; the heat exchange device comprises a heat exchanger arranged in the equipment cabinet, an inlet of the heat exchanger is communicated with an outlet of the first air duct, and the heat exchanger is used for receiving hot air sent out by the first air duct; the second air duct is formed in the inner cavity of the equipment cabinet, an inlet of the second air duct is communicated with an outlet of the heat exchanger and used for receiving cold air transmitted by the heat exchanger, and an outlet of the second air duct is communicated with an inlet of the first air duct and used for transmitting cold air to the first air duct. The problem that heat dissipation efficiency is low due to the fact that heat dissipation is conducted through an air conditioner indoor unit in a communication machine room in the related technology is at least solved.

Description

Technical Field

[0001] The present application belongs to the technical fields of communication, heat dissipation, etc., and specifically relates to a heat dissipation device and a heat dissipation system. Background Art

[0002] Communication equipment generates a lot of heat during operation. If the heat is not dissipated in time, it may affect the normal operation of the communication equipment or even burn out. Figure 1 and Figure 2 As shown, some current practices are to place the entire communication equipment in a communication room, and place an air-conditioner in the communication room, collect the hot air in the communication room through the air-conditioner, and blow cold air into the communication room to cool the communication room, so that the communication equipment can be placed in a lower temperature environment, and the hot air in the communication equipment can be dissipated outward through the pores of the cabinet, and the cold air enters the communication equipment through the pores of the cabinet, thereby achieving cooling of the communication equipment and ensuring its normal operation.

[0003] However, the above-mentioned heat dissipation and cooling methods for communication equipment will increase the wind noise in the communication room, and because there are pores in the cabinet, in order to prevent dust, moisture, mold, etc. in the communication room from entering the cabinet and affecting the normal operation of the communication equipment, the cabinet needs to be designed to be dust-proof, moisture-proof and mold-proof, which invisibly increases the cost. In addition, the communication equipment only occupies a certain space in the communication room, resulting in a large amount of underutilized space in the communication room, making the cold air flow in the communication room larger, which is not conducive to the heat dissipation of the communication equipment, and thus resulting in low heat dissipation efficiency in the communication room. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a heat dissipation system that can at least solve the problems in the related art such as low heat dissipation efficiency caused by installing an air conditioner indoor unit in a communication room for heat dissipation.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The present application provides a heat dissipation system, including:

[0007] a first air duct, the first air duct being formed in an inner cavity of a working device in an equipment cabinet and being used for transmitting hot air generated by the working device;

[0008] a heat exchange device, the heat exchange device comprising a heat exchanger disposed in the equipment cabinet, the inlet of the heat exchanger being connected to the outlet of the first air duct, for receiving hot air transmitted from the first air duct;

[0009] The second air duct is formed in the inner cavity of the equipment cabinet, the inlet of the second air duct is connected with the outlet of the heat exchanger, and is used to receive the cold air transmitted from the heat exchanger, and the outlet of the second air duct is connected with the inlet of the first air duct, and is used to transmit cold air to the first air duct.

[0010] An embodiment of the present application also provides a heat dissipation system, including the above-mentioned heat dissipation device.

[0011] In the embodiment of the present application, a heat exchanger is arranged in the inner cavity of the equipment cabinet, and the heat exchanger is used to realize heat exchange and cooling of the hot air discharged from the working device, so as to achieve the heat dissipation effect of the working device. Compared with the method of blowing cold air by the air conditioner, when the sound waves inside the equipment cabinet pass through the heat exchanger, it has a certain noise reduction effect, thereby effectively reducing the noise inside the equipment cabinet; and the equipment cabinet can also block the noise inside it from entering the communication room outside the equipment cabinet, thereby effectively reducing the internal noise of the communication room; in addition, compared with the method of using the air conditioner to blow cold air into the equipment cabinet, the method of using the heat exchanger to achieve heat dissipation does not involve gas entering and exiting the equipment cabinet, but heat exchange and cooling the air in the equipment cabinet by the heat exchanger, thereby effectively avoiding gas from entering and exiting the equipment cabinet, and thus dust, moisture, mold, etc. will not be brought into the equipment cabinet, and thus there is no need to perform three-proof designs such as dustproof, moisture-proof and mold-proof on the equipment cabinet, which can reduce costs to a certain extent and reduce the complexity of the equipment cabinet.

[0012] In addition, the heat dissipation device in the embodiment of the present application directly dissipates heat for the working device inside the equipment cabinet. Compared with the method of dissipating heat for the cabinet in the communication room, the heat dissipation method in the embodiment of the present application is more precise and centralized, and requires less space for heat dissipation, thereby improving the heat dissipation efficiency and ensuring the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the use of a communication room in the related art to dissipate heat from communication equipment;

[0014] Figure 2 A schematic diagram of blowing cold air into a cabinet of a communication device and blowing out hot air to achieve heat dissipation in the related art;

[0015] Figure 3 A schematic diagram of the structure of the heat dissipation device disclosed in an embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the use of a sealed equipment cabinet to dissipate heat from a working device according to an embodiment of the present application;

[0017] Figure 5 A specific flow chart of the heat dissipation principle disclosed in the embodiment of this application;

[0018] Figure 6 A schematic diagram of gas flow in the front-to-back direction within an equipment cabinet disclosed in an embodiment of the present application;

[0019] Figure 7 A schematic diagram of gas flow in the left-right direction within an equipment cabinet disclosed in an embodiment of the present application;

[0020] Figure 8 A schematic diagram of the gas flow inside the equipment cabinet with a fan disclosed in an embodiment of the present application;

[0021] Fig. 9 A schematic diagram of a heat dissipation device and an equipment cabinet and other structures disclosed in an embodiment of the present application;

[0022] Fig.10 A schematic diagram of the structure of the equipment cabinet, heat exchange device, working device, etc. disclosed in the embodiment of the present application;

[0023] Fig.11 It is a schematic diagram of the working device, heat exchanger, liquid distribution pipeline and other structures disclosed in the embodiment of the present application;

[0024] Fig.12 It is a schematic diagram of the structure of the liquid distribution pipeline and the like disclosed in the embodiment of the present application;

[0025] Fig.13 This is a schematic diagram of the working device, heat exchanger and other structures disclosed in the embodiment of the present application.

[0026] Description of reference numerals:

[0027] 100-heat exchange device; 110-heat exchanger; 120-heat exchange external unit; 130-transmission pipeline; 131-input branch; 132-output branch; 140-liquid distribution pipeline; 141-liquid inlet main pipe; 142-liquid return main pipe; 143-liquid inlet branch pipe; 144-liquid outlet branch pipe; 145-liquid discharge pipe; 150-liquid storage container;

[0028] 200-equipment cabinet; 210-top wall; 220-bottom wall; 230-side wall; 240-partition;

[0029] 300-working device;

[0030] 400- fan;

[0031] A-first air duct; B-second air duct; B1-first air duct section; B2-second air duct section; B3-third air duct section. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0035] refer to Figures 3 to 13 The embodiment of the present application discloses a heat dissipation device for dissipating heat from a working device 300 in an equipment cabinet 200 of a device to be radiated. The device to be radiated may be a communication device, or other devices, which are not specifically limited here.

[0036] The equipment to be cooled may include an equipment cabinet 200 and a working device 300 disposed in the equipment cabinet 200, wherein the equipment cabinet 200 may protect the working device 300, and the working device 300 may be some electrical components, communication components, etc., which may generate a certain amount of heat during operation. To ensure the normal operation of the working device 300, it is necessary to cool the working device 300 so that the temperature of the working device 300 during operation is maintained within a reasonable temperature range, thereby ensuring the efficient operation of the working device 300 and increasing the operating life of the working device 300.

[0037] Exemplarily, the working device 300 may adopt a CPCI chassis, an ATCA chassis, a BBU chassis, a switch chassis, a transmission chassis, etc.

[0038] In an embodiment of the present application, the heat dissipation system includes a first air duct A, a second air duct B and a heat exchange device 100, wherein the first air duct A is used to transmit air carrying heat generated by the working device 300, that is, to transmit hot air so that the heat can flow out of the working device 300 with the air, thereby preventing heat accumulation inside the working device 300 and generating high temperature; the second air duct B is used to transmit cold air so that the cold air can flow toward the inlet end of the working device 300, thereby promoting the cold air to enter the working device 300 and achieve a cooling effect on the working device 300; the heat exchange device 100 is used to perform heat exchange and cooling on the hot air output by the first air duct A, so that the hot air is converted into cold air through heat exchange.

[0039] The working device 300 has a through inner cavity, wherein a first air duct A can be formed in the inner cavity of the working device 300 for transmitting hot air generated by the working device 300. Exemplarily, the inner cavity of the working device 300 can be directly used as the first air duct A, that is, the heat generated during the operation of the working device 300 can be transmitted through the through inner cavity.

[0040] In addition, the inlet of the first air duct A can be used to communicate with the inner cavity of the equipment cabinet 200, so that the cold air in the equipment cabinet 200 can be transferred into the working device 300 through the first air duct A, thereby achieving heat dissipation and cooling of the working device 300. In other embodiments, the first air duct A can also be additionally provided in the inner cavity of the working device 300 to facilitate the transmission of hot air.

[0041] Exemplarily, the inner cavity of the working device 300 can be divided into one or more channels. When the inner cavity of the working device 300 is one channel, the first air duct A corresponding to the channel can be used to transmit hot air out and transmit cold air in for the entire working device 300 to achieve heat dissipation; when the inner cavity of the working device 300 is divided into multiple channels, each channel corresponds to a first air duct A, so that the surrounding areas can be cooled through multiple first air ducts A, thereby increasing the heat dissipation area and the cold air contact area, thereby improving the heat dissipation effect.

[0042] To achieve heat dissipation, the heat exchange device 100 may include a heat exchanger 110, which is arranged in the inner cavity of the equipment cabinet 200, and the inlet of the heat exchanger 110 is connected to the outlet of the first air duct A, for receiving the hot air transmitted from the first air duct A; in addition, the outlet of the heat exchanger 110 is connected to the inlet of the second air duct B. Through this arrangement, the hot air generated by the heat generated during the operation of the working device 300 can flow along the first air duct A and enter the heat exchanger 110 through the outlet of the first air duct A; after entering the heat exchanger 110, the hot air will exchange heat in the heat exchanger 110, so that part of the heat is absorbed by the heat exchange medium (such as coolant, etc.) in the heat exchanger 110, so that the cold air generated after heat exchange in the heat exchanger 110 is discharged to the second air duct B, and finally flows to the first air duct A to cool down the working device 300.

[0043] Based on the above process, on the one hand, the heat generated by the working device 300 will be discharged through the first air duct A in the form of hot air to reduce the accumulation of heat in the working device 300; on the other hand, cold air enters the first air duct A and exchanges heat with the working device 300 to achieve cooling of the working device 300. Based on this, the heat dissipation effect of the working device 300 can be greatly improved to ensure that the temperature of the working device 300 will not be too high to affect its normal operation.

[0044] Taking into account that the working device 300 is arranged in the equipment cabinet 200, in order to enable the cold air discharged from the heat exchanger 110 to flow back into the first air duct A, in the embodiment of the present application, the second air duct B is formed in the inner cavity of the equipment cabinet 200, and the inlet of the second air duct B is connected to the outlet of the heat exchanger 110, for receiving the cold air transmitted by the heat exchanger 110, and the outlet of the second air duct B is connected to the inlet of the first air duct A, for transmitting cold air to the first air duct A.

[0045] In some embodiments, part of the inner cavity of the equipment cabinet 200 can be used as the second air duct B. Of course, an additional second air duct B can be provided in the inner cavity of the equipment cabinet 200 to facilitate the transmission of cold air.

[0046] In the embodiment of the present application, a heat exchanger 110 is arranged in the inner cavity of the equipment cabinet 200, and the heat exchanger 110 is used to achieve heat exchange and cooling of the hot air exhausted by the working device 300, so as to achieve the heat dissipation effect of the working device 300. Compared with the method of blowing cold air by the air conditioner, when the sound waves inside the equipment cabinet 200 pass through the heat exchanger 110, since the heat exchanger 110 is provided with a fine pipe, the fine pipe can have a certain noise reduction effect, thereby effectively reducing the noise inside the equipment cabinet 200; and, the equipment cabinet 200 can also block the noise inside it from entering the communication room outside the equipment cabinet 200, thereby effectively reducing the internal noise of the communication room.

[0047] Furthermore, compared to the method of using an air conditioner to blow cold air into the equipment cabinet 200, the method of using the heat exchanger 110 to achieve heat dissipation does not involve gas entering or exiting the equipment cabinet 200. Instead, the air in the equipment cabinet 200 is cooled by heat exchanger 110, thereby effectively preventing gas from entering or exiting the equipment cabinet 200, and thus preventing dust, moisture, mold, etc. from being brought into the equipment cabinet 200. As a result, there is no need to perform dustproof, moisture-proof, and mold-proof designs on the equipment cabinet 200, which can reduce costs to a certain extent and reduce the complexity of the equipment cabinet 200.

[0048] In addition, the heat dissipation device in the embodiment of the present application directly dissipates heat for the working device 300 inside the equipment cabinet 200. Compared with the method of dissipating heat for the cabinet in the communication room, the heat dissipation method in the embodiment of the present application is more precise and centralized, and requires less space for heat dissipation, thereby improving the heat dissipation efficiency and ensuring the heat dissipation effect.

[0049] refer to Fig.10 In some embodiments, the equipment cabinet 200 may include a top wall 210 and a bottom wall 220 spaced apart along a first direction, and a plurality of side walls 230 respectively connected between the top wall 210 and the bottom wall 220. The top wall 210, the bottom wall 220 and the plurality of side walls 230 may together enclose a sealed cavity, and the sealed cavity may be used to accommodate components such as the working device 300 and the heat exchanger 110, and ensure sealing to prevent gas from entering and exiting the equipment cabinet 200. Exemplarily, the equipment cabinet 200 may be a polygonal hollow prism, a hollow cylinder, a hollow elliptical cylinder, etc. In actual working conditions, the first direction may be understood as a vertical direction. Of course, it may also be other directions, which may be selected according to actual working conditions.

[0050] Considering that the working device 300 is located in the equipment cabinet 200, when the working device 300 is set, the working device 300 is spaced apart from the top wall 210, so as to lay a foundation for cold air to enter and exit the working device 300. In addition, the heat exchanger 110 is arranged between the working device 300 and the bottom wall 220 of the equipment cabinet 200, and the heat exchanger 110 is spaced apart from the top wall 210 and the bottom wall 220 of the equipment cabinet 200, so that the cold air after heat exchange through the heat exchanger 110 can enter the equipment cabinet 200.

[0051] In order to allow the cold air discharged through the heat exchanger 110 to flow smoothly along the first direction in the equipment cabinet 200, the working device 300 and the heat exchanger 110 are each spaced apart from at least part of the side wall 230, so that the heat exchanger 110 can form a first flow channel with the equipment cabinet 200, and the working device 300 can also form a second flow channel with the equipment cabinet 200, so that the cold air discharged from the heat exchanger 110 can flow to the gap between the working device 300 and the top wall 210 through the first flow channel and the second flow channel in sequence, so that the cold air enters the inner cavity of the working device 300. Based on the above arrangement, the second air duct B in the embodiment of the present application is at least formed between the outer wall of the heat exchanger 110 and the side wall 230 of the equipment cabinet 200, and between the outer wall of the working device 300 and the side wall 230 of the equipment cabinet 200, so that the cold air can be transmitted between the heat exchanger 110 and the working device 300 and the side wall 230 of the equipment cabinet 200.

[0052] Exemplarily, gaps are formed between the outer walls of each of the heat exchanger 110 and the working device 300 and all the side walls 230 of the equipment cabinet 200. In this case, the cross-sectional area of ​​the gap can be ensured to be maximized, so that more cold air can flow from between the heat exchanger 110 and the bottom wall 220 to between the working device 300 and the top wall 210, so as to provide more cold air to enter the inner cavity of the working device 300 and cool the working device 300.

[0053] Of course, a gap may be formed between the outer walls of the heat exchanger 110 and the working device 300 and part of the side walls 230 of the equipment cabinet 200. In this case, in the area where no gap is formed, the side walls 230 of the equipment cabinet 200 can support the heat exchanger 110 and / or the working device 300 to ensure the stability of the heat exchanger 110 and / or the working device 300.

[0054] In a more specific embodiment, the first air duct A extends along the first direction, and one end of the first air duct A adjacent to the top wall 210 is the air inlet end, and the end away from the top wall 210 is the air outlet end. Based on this, hot air can flow in the first air duct A along the first direction and finally be discharged through the air outlet end; at the same time, cold air can enter the first air duct A from the air inlet end and flow along the first direction, so that heat can continuously flow out with the hot air and cold air can continuously flow in, thereby achieving a good heat dissipation effect on the working device 300.

[0055] For example, the first direction may be a vertical direction, that is, cold air enters the first air duct A from the top of the working device 300 and is discharged from the first air duct A from the bottom of the working device 300. In this process, the cold air absorbs part of the heat generated by the working device 300 and is heated up to be converted into hot air. At the same time, the hot air is discharged from the first air duct A from the bottom of the working device 300. Therefore, the heat dissipation effect of the working device 300 can be improved.

[0056] In some embodiments, the second air duct B may be composed of multiple sections to facilitate the transmission of cold air discharged from the heat exchanger 110 to the air inlet of the working device 300 .

[0057] refer to Figures 6 to 8 The second air duct B may include a first air duct segment B1, a second air duct segment B2 and a third air duct segment B3. Among them, the first air duct section B1 can be formed by the heat exchanger 110 and the bottom wall 220, that is, the bottom end surface of the heat exchanger 110 is spaced a certain distance from the bottom wall 220 of the equipment cabinet 200 to form a first air duct section B1 for transmitting cold air; the second air duct section B2 can be formed by the heat exchanger 110 and the working device 300 respectively and the side wall 230 of the equipment cabinet 200, that is, the side surface of the heat exchanger 110 is spaced a certain distance from the side wall 230 of the equipment cabinet 200, and the side surface of the working device 300 is spaced a certain distance from the side wall 230 of the equipment cabinet 200, thereby, the second air duct section B2 for transmitting cold air is formed by the above two intervals; the third air duct section B3 can be formed by the working device 300 and the top wall 210, that is, the top end surface of the working device 300 is spaced a certain distance from the top wall 210 of the equipment cabinet 200 to form a third air duct section B3 for transmitting cold air. Based on the above configuration, the first air duct segment B1, the second air duct segment B2 and the third air duct segment B3 are connected in sequence to form the entire second air duct B, so that the cold air discharged from the heat exchanger 110 can be transmitted to the air inlet of the working device 300 to cool the working device 300.

[0058] Further, the first air duct segment B1 and the third air duct segment B3 both extend along the second direction, and the second air duct segment B2 extends along the first direction, wherein the second direction is perpendicular to the first direction. In actual working conditions, the first direction may be a vertical direction, and the second direction may be a horizontal direction. In addition, although the first air duct segment B1 and the third air duct segment B3 both extend along the second direction, the flow directions of the cold air in each of them are opposite.

[0059] refer to Fig.10In some embodiments, a plurality of working devices 300 may be provided in the inner cavity of the equipment cabinet 200. Accordingly, the heat exchange device 100 may include a plurality of heat exchangers 110. The plurality of heat exchangers 110 are sequentially arranged along the first direction in the inner cavity of the equipment cabinet 200, and the plurality of heat exchangers 110 are respectively provided corresponding to the plurality of working devices 300 provided in the inner cavity of the equipment cabinet 200. Through this arrangement, the corresponding working devices 300 can be cooled by the plurality of heat exchangers 110 to ensure that each working device 300 can operate within a normal temperature range.

[0060] It should be noted here that, considering that the heat exchanger 110 corresponding to the previous working device 300 can discharge cold air, the air inlet end of the subsequent working device 300 is arranged opposite to the heat exchanger 110 corresponding to the previous working device 300. In this way, in addition to a part of the cold air discharged by the heat exchanger 110 corresponding to the previous working device 300 being transmitted to the air inlet end of the working device 300 via the second air duct B, another part of the cold air enters the inner cavity of the subsequent working device 300, so that cold air can be supplied to two adjacent working devices 300 at the same time through one heat exchanger 110, which can improve the heat dissipation effect to a certain extent.

[0061] In other embodiments, the heat exchange device 100 may further include an integral heat exchanger 110, which corresponds to a plurality of working devices 300, so as to dissipate heat for the plurality of working devices 300 at the same time. In this case, the inner cavities of the plurality of working devices 300 may be connected to the heat exchanger 110, so that the hot air discharged from the plurality of working devices 300 may be heat exchanged and cooled at the same time through a common heat exchanger 110, and the cold air formed after the heat exchange may be discharged into the equipment cabinet 200, and transported to the air inlets of the plurality of working devices 300 through the second air duct B, so as to achieve the heat dissipation effect for the plurality of working devices 300.

[0062] It should be noted here that since multiple working devices 300 are arranged in sequence along the first direction in the equipment cabinet 200, in order to prevent the hot air exhausted from the previous working device 300 from entering the inner cavity of the next working device 300, the distance between two adjacent working devices 300 can be increased to reduce or even avoid the hot air exhausted from the previous working device 300 from entering the next working device 300. Instead, the hot air exhausted from each working device 300 enters the equipment cabinet 200, and is heat exchanged through a common heat exchanger 110 to obtain cold air, and the cold air is allowed to enter the inner cavity of each working device 300 to achieve heat dissipation for each working device 300.

[0063] When a plurality of working devices 300 are provided in the inner cavity of the equipment cabinet 200, and each working device 300 is equipped with a heat exchanger 110, a plurality of heat exchange circulation areas can be formed in the equipment cabinet 200. To avoid mutual interference between the heat exchange circulation areas, a partition 240 can be provided between one heat exchanger 110 and the working device corresponding to the next heat exchanger 110 in the inner cavity of the equipment cabinet 200, that is, along the first direction, the partition 240 is located between the heat exchanger 110 corresponding to the previous working device 300 and the next working device 300. Based on this, the partition 240 can separate two adjacent heat exchange circulation areas and play a blocking role on the air flowing in each heat exchange circulation area, thereby effectively preventing the heat exchange circulation areas from interfering with each other and causing airflow turbulence, thereby ensuring the uniformity of air flow in each heat exchange circulation area, and improving the heat dissipation effect to a certain extent.

[0064] Of course, when a plurality of working devices 300 are provided in the inner cavity of the equipment cabinet 200, and the plurality of working devices 300 share a heat exchanger 110, in order to prevent the hot air exhausted from the previous working device 300 from entering the inner cavity of the next working device 300, a partition 240 may also be provided in the equipment cabinet 200. The partition 240 is located between two adjacent working devices 300. In this way, the partition 240 can block the hot air exhausted from the previous working device 300, thereby preventing the hot air exhausted from the previous working device 300 from entering the inner cavity of the next working device 300, thereby ensuring the heat dissipation effect of the next working device 300.

[0065] In some embodiments, a fan may be provided in the working device 300, and the fan may blow hot air along the first air duct A to promote the hot air to flow out of the first air duct A. At the same time, it may also have a certain adsorption effect on the cold air in the equipment cabinet 200 to promote the cold air to flow into the first air duct A. In this way, the heat dissipation effect of the working device 300 may be improved.

[0066] To further improve the heat dissipation effect of the working device 300, the heat dissipation system may further include a fan 400, such as Figure 8As shown, the fan 400 is arranged in the equipment cabinet 200 and is located between the heat exchanger 110 and the corresponding working device 300. Based on this, under the action of the fan 400, the hot air in the first air duct A can be pressurized, so that the hot air can be further discharged from the first air duct A. At the same time, the hot air will flow into the heat exchanger 110 faster under the action of the fan 400, so as to convert more hot air into cold air, thereby improving the heat exchange efficiency; in addition, under the action of the fan 400, the cold air can also be promoted to enter the first air duct A to absorb heat. In the embodiment of the present application, under the action of the fan 400, on the one hand, it promotes hot air to flow out of the first air duct A, and on the other hand, it promotes cold air to flow in the inner cavity of the equipment cabinet 200, and promotes the cold air in the inner cavity of the equipment cabinet 200 to enter the first air duct A. In this way, the air in the equipment cabinet 200 can circulate, and during the circulation process, the heat generated by the working device 300 is transferred to the heat exchanger 110, and finally exported to the outside through the heat exchanger 110, thereby realizing the heat dissipation of the working device 300.

[0067] refer to Fig. 9 In some embodiments, the heat exchange device 100 may further include an external heat exchanger 120 and a delivery pipeline 130, wherein the external heat exchanger 120 is disposed outside the equipment cabinet 200, one end of the delivery pipeline 130 is connected to the external heat exchanger 120, and the other end of the delivery pipeline 130 extends to the inner cavity of the equipment cabinet 200 and is connected to the heat exchanger 110, for transmitting coolant between the external heat exchanger 120 and the heat exchanger 110.

[0068] Exemplarily, the heat exchanger 120 may include a shell, a heat dissipation pipe, a heat dissipation fan and other structures, wherein the heat dissipation pipe is coiled in the shell, and the heat dissipation pipe is connected to the delivery pipeline 130, so that the high-temperature coolant generated after the heat exchange is transported to the heat dissipation pipe via the delivery pipeline 130, and the heat dissipation pipe dissipates heat to the outside, thereby cooling the coolant. In addition, the coolant may be a water-based working fluid, such as pure water, ethylene glycol solution, propylene glycol solution, etc. Of course, it can also be in other forms, which are not specifically limited here.

[0069] In order to improve the heat dissipation effect of the coolant, a heat dissipation fan can also be provided on the shell, and air is blown to the heat dissipation pipe by the heat dissipation fan to accelerate the heat dissipation speed of the heat dissipation pipe, thereby improving the heat dissipation efficiency of the coolant.

[0070] Under actual working conditions, the equipment cabinet 200 is arranged in a closed machine room, and the heat exchanger external unit 120 is arranged outside the machine room. In this case, the heat exchanger external unit 120 and the equipment cabinet 200 can be isolated by the wall panels of the machine room to prevent the heat exchanger external unit 120 from entering the equipment cabinet 200 and causing loud noise inside the equipment cabinet 200.

[0071] refer to Fig.11 and Fig.12 In order to configure the coolant to the heat exchanger 110, the heat exchange device 100 may further include a liquid distribution pipeline 140, which is connected between the delivery pipeline 130 and the heat exchanger 110, so as to facilitate the configuration of the low-temperature coolant in the delivery pipeline 130 to the heat exchanger 110, and to return the high-temperature coolant discharged from the heat exchanger 110 to the delivery pipeline 130, so as to facilitate the transfer of heat in the heat exchanger 110 to the outside.

[0072] like Fig.12 As shown, in some embodiments, the liquid distribution pipeline 140 may include a liquid inlet main pipe 141, a liquid return main pipe 142, and at least one pair of matching liquid inlet branches 143 and liquid outlet branches 144, wherein the liquid inlet branch 143 is connected to the liquid inlet main pipe 141, the liquid outlet branch 144 is connected to the liquid return main pipe 142, and the liquid inlet branch 143 and the liquid outlet branch 144 are respectively connected to the heat exchanger 110. Based on this, the low-temperature coolant can be transported to the liquid inlet branch 143 through the liquid inlet main pipe 141, and flows into the heat exchanger 110 from the liquid inlet branch 143, and heat exchanges with hot air in the heat exchanger 110 to achieve cooling of the hot air and generate high-temperature coolant; the high-temperature coolant generated by heat exchange in the heat exchanger 110 flows into the liquid outlet branch 144, and flows into the liquid return main pipe 142 through the liquid outlet branch 144.

[0073] Furthermore, the delivery pipeline 130 may include an input branch 131 and an output branch 132, wherein the input branch 131 is connected to the liquid inlet main pipe 141, and the output branch 132 is connected to the liquid return main pipe 142. In this way, the low-temperature cooling medium output by the heat exchange external unit 120 can be transmitted to the liquid inlet main pipe 141 through the input branch 131, and the high-temperature cooling medium in the liquid return main pipe 142 can flow back to the heat exchange external unit 120 via the output branch 132 for cooling.

[0074] Based on the above settings, the coolant can circulate in sequence among the heat exchanger external unit 120, the input branch 131, the liquid inlet main pipe 141, the liquid inlet branch pipe 143, the inner cavity of the heat exchanger 110, the liquid outlet branch pipe 144, the return liquid main pipe 142, and the output branch 132, so as to absorb the heat of the hot air in the heat exchanger 110 through the coolant and dissipate it to the outside through the heat exchanger external unit 120, thereby finally achieving the heat dissipation effect on the working device 300.

[0075] In some embodiments, when a plurality of working devices 300 are provided in the inner cavity of the equipment cabinet 200, and each working device 300 is equipped with a heat exchanger 110, the liquid distribution pipeline 140 may include a plurality of pairs of matching liquid inlet branches 143 and liquid outlet branches 144, and each pair of liquid inlet branches 143 and liquid outlet branches 144 are respectively connected to the same heat exchanger 110 to facilitate the transportation of low-temperature coolant into the heat exchanger 110 and the reception of high-temperature coolant transmitted from the heat exchanger 110. In this way, coolant can be supplied to multiple heat exchangers 110 at the same time through the liquid distribution pipeline 140 to facilitate the simultaneous heat dissipation of heat for multiple heat exchangers 110.

[0076] In some embodiments, the liquid distribution pipeline 140 may further include a drain pipe 145, which is connected to the liquid inlet main pipe 141 and / or the liquid return main pipe 142. By providing the drain pipe 145, the coolant can be discharged to avoid excessive pressure in each pipeline and damage to the pipeline. In addition, the drain pipe 145 can also be used to inject new coolant into the liquid distribution pipeline 140 to achieve the replenishment of the coolant.

[0077] In addition, a switch valve may be provided at the drain pipe 145 to switch the drain pipe 145 on and off, so that the switch valve is opened when the coolant needs to be discharged or replenished, and the switch valve is closed when the coolant does not need to be discharged or replenished.

[0078] refer to Fig. 9 In some embodiments, the heat exchange device 100 may further include a liquid storage container 150, which is connected to the delivery pipeline 130. By providing the liquid storage container 150, the coolant can be contained to achieve a buffering effect on the coolant, so as to ensure that the coolant in the delivery pipeline 130 is sufficient and there is no interruption of the coolant. Exemplarily, the liquid storage container 150 can be connected to the input branch 131 to ensure that the low-temperature coolant is sufficient.

[0079] Furthermore, a water pump may be provided in the liquid storage container 150, and the water pump may be used to pump the coolant to promote the circulation of the coolant.

[0080] Furthermore, the liquid storage container 150 can be integrated on the outside or inside of the equipment cabinet 200. For example, when manufacturing the equipment cabinet 200, the liquid storage container 150 is formed at the same time, which can improve the manufacturing efficiency.

[0081] In addition, the liquid storage container 150 can also be independently arranged on the outside or inside of the equipment cabinet 200. In this way, the equipment cabinet 200 can be manufactured first, and then the liquid storage container 150 can be installed on the outside or inside of the equipment cabinet 200. This method can reduce manufacturing complexity.

[0082] In other embodiments, the liquid storage container 150 can also be integrated into the heat exchange external unit 120, or independently disposed in the heat exchange external unit 120. For example, the liquid storage container 150 is integrated into the inner wall of the heat exchange external unit 120, or independently located in the inner cavity of the heat exchange external unit 120.

[0083] In other embodiments, the liquid storage container 150 may also be integrated into the heat exchanger 110 , or independently disposed in the heat exchanger 110 . For example, the liquid storage container 150 is integrated into the inner wall of the heat exchanger 110 , or independently disposed in the inner cavity of the heat exchanger 110 .

[0084] In the case where the heat exchange device 100 includes multiple heat exchange external units 120, in order to reduce the use of parts and reduce costs, the multiple heat exchange external units 120 can be connected to the liquid storage container 150 respectively. At the same time, the liquid storage container 150 is also connected to the heat exchangers 110 in the multiple equipment cabinets 200 respectively through the delivery pipeline 130. Based on this, a common liquid storage container 150 can correspond to multiple sets of heat exchange external units 120 and heat exchangers 110, thereby reducing the number of liquid storage containers 150 used, and to a certain extent, can reduce the complexity of the equipment and reduce costs.

[0085] Based on the above heat dissipation device, the embodiment of the present application also discloses a heat dissipation system, including the above heat dissipation device. Exemplarily, the heat dissipation system can be a baseband processing unit (BBU), a transmission device, a core interactive routing device, etc. Of course, it can also be in other forms, which are not specifically limited here. .

[0086] In summary, the present application adopts air-liquid heat exchange technology, which has good heat dissipation effect, high efficiency, low noise, low heat dissipation energy consumption, and does not rely on the heat dissipation equipment in the computer room, so that the layout of the equipment in the computer room is not restricted by the hot and cold air ducts, making the layout more flexible, saving space, and improving the layout density; by forming a closed air duct, there is no air exchange between the equipment cabinet 200 and the outside, the three-proof property is good, and the equipment reliability is improved; by arranging a fan 400 between the working device 300 and the heat exchanger 110, the impedance silencer noise reduction effect can be produced to a certain extent; the closed equipment cabinet 200 can also isolate the noise outside to achieve the purpose of noise reduction.

[0087] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A heat dissipation device, characterized in that: include: A first air duct (A), the first air duct (A) being formed in an inner cavity of a working device (300) in an equipment cabinet (200) and being used for transmitting hot air generated by the working device (300); A heat exchange device (100), the heat exchange device (100) comprising a heat exchanger (110) disposed in the equipment cabinet (200), the inlet of the heat exchanger (110) being in communication with the outlet of the first air duct (A) for receiving hot air transmitted from the first air duct (A); A second air duct (B), wherein the second air duct (B) is formed in the inner cavity of the equipment cabinet (200), the inlet of the second air duct (B) is connected to the outlet of the heat exchanger (110), and is used to receive cold air transmitted from the heat exchanger (110); the outlet of the second air duct (B) is connected to the inlet of the first air duct (A), and is used to transmit cold air to the first air duct (A).

2. The heat dissipation device according to claim 1, characterized in that: The heat exchanger (110) is disposed between the working device (300) and the bottom wall (220) of the equipment cabinet (200), and the heat exchanger (110) is spaced apart from the top wall (210) and the bottom wall (220) of the equipment cabinet (200); The second air duct (B) is formed at least between the outer wall of the heat exchanger (110) and the side wall (230) of the equipment cabinet (200), and between the outer wall of the working device (300) and the side wall (230) of the equipment cabinet (200).

3. The heat dissipation device according to claim 2, characterized in that: The first air duct (A) extends along a first direction, and an end of the first air duct (A) adjacent to the top wall (210) is an air inlet end, and an end away from the top wall (210) is an air outlet end.

4. The heat dissipation device according to claim 2, characterized in that: The second air duct (B) comprises a first air duct section (B1) formed between the bottom end of the heat exchanger (110) and the bottom wall (220), a second air duct section (B2) formed between the outer wall of the heat exchanger (110) and the outer wall of the working device (300) and the side wall (230), and a third air duct section (B3) formed between the top end of the working device (300) and the top wall (210); The first air duct segment (B1) and the third air duct segment (B3) both extend along a second direction, and the second air duct segment (B2) extends along a first direction, wherein the second direction is perpendicular to the first direction.

5. The heat dissipation device according to claim 2, characterized in that: The heat exchange device (100) comprises a plurality of heat exchangers (110), wherein the plurality of heat exchangers (110) are arranged in sequence along a first direction in the inner cavity of the equipment cabinet (200), and the plurality of heat exchangers (110) are used to be respectively arranged corresponding to the plurality of working devices (300) provided in the inner cavity of the equipment cabinet (200).

6. The heat dissipation device according to claim 5, characterized in that: Along the first direction, a partition plate (240) is provided between the working device (300) corresponding to one of the heat exchangers (110) and the next heat exchanger (110).

7. The heat dissipation device according to any one of claims 1 to 6, characterized in that: The heat dissipation device further comprises a fan (400), wherein the fan (400) is arranged in the equipment cabinet (200) and is located between the heat exchanger (110) and the corresponding working device (300).

8. The heat dissipation device according to claim 1 or 5, characterized in that: The heat exchange device (100) further includes a heat exchange external machine (120) and a delivery pipeline (130); The heat exchange external machine (120) is arranged outside the equipment cabinet (200), one end of the delivery pipeline (130) is connected to the heat exchange external machine (120), and the other end of the delivery pipeline (130) extends to the inner cavity of the equipment cabinet (200) and is connected to the heat exchanger (110), so as to transmit cooling liquid between the heat exchange external machine (120) and the heat exchanger (110).

9. The heat dissipation device according to claim 8, characterized in that: The heat exchange device (100) further comprises a liquid distribution pipeline (140), wherein the liquid distribution pipeline (140) comprises a liquid inlet main pipe (141), a liquid return main pipe (142), and at least one pair of matching liquid inlet branch pipes (143) and liquid outlet branch pipes (144), wherein the liquid inlet branch pipe (143) is connected to the liquid inlet main pipe (141), and the liquid outlet branch pipe (144) is connected to the liquid return main pipe (142), and the liquid inlet branch pipe (143) and the liquid outlet branch pipe (144) are respectively connected to the heat exchanger (110); The delivery pipeline (130) comprises an input branch (131) and an output branch (132); the input branch (131) is connected to the liquid inlet main pipe (141), and the output branch (132) is connected to the liquid return main pipe (142).

10. The heat dissipation device according to claim 9, characterized in that: The liquid distribution pipeline (140) further comprises a liquid discharge pipe (145), wherein the liquid discharge pipe (145) is connected to the liquid inlet main pipe (141) and / or the liquid return main pipe (142).

11. The heat dissipation device according to claim 8, characterized in that: The heat exchange device (100) further includes a liquid storage container (150); The liquid storage container (150) is connected to the delivery pipeline (130).

12. The heat dissipation device according to claim 11, characterized in that: The liquid storage container (150) is integrated on the outside or inside of the equipment cabinet (200); Alternatively, the liquid storage container (150) is independently arranged on the outside or inside of the equipment cabinet (200); Alternatively, the liquid storage container (150) is integrated into or independently arranged in the heat exchange external machine (120); Alternatively, the liquid storage container (150) is integrated into or independently arranged in the heat exchanger (110).

13. The heat dissipation device according to claim 11, characterized in that: The heat exchange device (100) comprises a plurality of heat exchange external machines (120), wherein the plurality of heat exchange external machines (120) are respectively connected to the liquid storage container (150), and the liquid storage container (150) is respectively connected to the heat exchangers (110) in the plurality of equipment cabinets (200) via the delivery pipeline (130).

14. A heat dissipation system, characterized in that: A heat dissipation device comprising any one of claims 1 to 13.

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