CN222546993U - Heat dissipation structure and grid cabinet - Google Patents
Heat dissipation structure and grid cabinet Download PDFInfo
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- CN222546993U CN222546993U CN202420380917.8U CN202420380917U CN222546993U CN 222546993 U CN222546993 U CN 222546993U CN 202420380917 U CN202420380917 U CN 202420380917U CN 222546993 U CN222546993 U CN 222546993U
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Abstract
本实用新型公开了一种散热结构和并网柜。散热结构包括柜体和散热主体；柜体具有内腔散热主体包括壳体、换热芯体以及第一风机，壳体连接于柜体并设有均流腔；换热芯体设于壳体内，换热芯体具有相互隔离的第一风道和第二风道，第一风道具有回风子流道和吹风子流道，回风子流道和吹风子流道均与内腔连通，均流腔连通于回风子流道与吹风子流道之间，且内腔、回风子流道、均流腔以及吹风子流道依次连通并与内腔共同形成封闭的循环流道；第二风道的进风端和第二风道的出风端均用以连通至壳体外和内腔外，并与内腔和均流腔隔离；第一风机设于循环流道上。本实用新型技术方案中的散热结构对柜体内的器件具有高防护等级和良好的散热效果。
The utility model discloses a heat dissipation structure and a grid-connected cabinet. The heat dissipation structure includes a cabinet and a heat dissipation body; the cabinet has an inner cavity, and the heat dissipation body includes a shell, a heat exchange core and a first fan, the shell is connected to the cabinet and is provided with a flow equalization cavity; the heat exchange core is arranged in the shell, and the heat exchange core has a first air duct and a second air duct isolated from each other, the first air duct has a return air sub-channel and a blowing air sub-channel, the return air sub-channel and the blowing air sub-channel are both connected to the inner cavity, the flow equalization cavity is connected between the return air sub-channel and the blowing air sub-channel, and the inner cavity, the return air sub-channel, the flow equalization cavity and the blowing air sub-channel are connected in sequence and form a closed circulation channel with the inner cavity; the air inlet end of the second air duct and the air outlet end of the second air duct are both used to connect to the outside of the shell and the inner cavity, and are isolated from the inner cavity and the flow equalization cavity; the first fan is arranged on the circulation channel. The heat dissipation structure in the technical solution of the utility model has a high protection level and good heat dissipation effect for the devices in the cabinet.
Description
Technical Field
The utility model relates to the technical field of grid-connected cabinets, in particular to a heat dissipation structure and a grid-connected cabinet.
Background
The heat dissipation technical scheme of the grid-connected cabinet of the wind power converter is mainly divided into two main types, namely water cooling heat dissipation and direct air cooling heat dissipation. The water cooling heat dissipation is realized by using a water cooling heat exchanger, and heat is transferred from the inside of the converter to the outside by using cooling liquid under the driving of a water pump. The whole converter cabinet can be fully sealed by adopting a water cooling technology, so that a higher protection level is achieved, but the water cooling technology is high in cost and relatively poor in reliability, and leakage risks are commonly existed, so that the maintenance cost of the whole life cycle is high. The traditional direct air cooling is a cooling method for forcing air to pass through the surface of a heat dissipation device under the drive of a fan so as to take away heat. The traditional direct air cooling heat dissipation is generally to directly exchange heat between external cold air and hot air in the cabinet body to achieve a heat dissipation effect, so that external dust or rainwater easily enters the cabinet body, the protection level of the cabinet body is insufficient, and the high protection requirements of dust prevention and water prevention cannot be met.
Disclosure of utility model
The utility model mainly aims to provide a heat radiation structure which aims to improve the protection level of a cabinet body and the dustproof and waterproof performances.
The heat dissipation structure comprises a cabinet body and a heat dissipation main body, wherein the cabinet body is provided with an inner cavity, the heat dissipation main body comprises a shell, a heat exchange core body and a first fan, the shell is connected to the cabinet body, a flow equalizing cavity is arranged in the shell, the heat exchange core body is provided with a first air channel and a second air channel which are mutually isolated, the first air channel is provided with a return air sub-channel and a blowing sub-channel, the return air sub-channel and the blowing sub-channel are both communicated with the inner cavity, the flow equalizing cavity is communicated between the return air sub-channel and the blowing sub-channel, the inner cavity, the return air sub-channel, the flow equalizing cavity and the blowing sub-channel are sequentially communicated and jointly form a closed circulation channel, an air inlet end of the second air channel and an air outlet end of the second air channel are both communicated outside the shell and the inner cavity and are isolated from the inner cavity and the air cavity, and the first fan is arranged on the circulation channel to accelerate the flow rate of gas.
In an embodiment, the air return sub-flow passage is provided with at least two air return sub-flow passages, and the at least two air return sub-flow passages are respectively arranged at two opposite sides of the at least one air blowing sub-flow passage.
In an embodiment, the flow equalizing cavity is formed between the side, facing away from the cabinet, of the heat exchange core and the housing.
In an embodiment, the first fan is communicated with the first air duct through a communication cavity.
In an embodiment, the heat dissipation structure further comprises a second fan, and the second fan is communicated with the second air duct.
In an embodiment, at least two heat exchange cores are arranged in the shell at intervals, and at least one second fan is communicated with the second air channels of at least two adjacent heat exchange cores.
In an embodiment, the first air duct of each heat exchange core is communicated with at least two first fans, and the at least two first fans are arranged along the air outlet direction perpendicular to the first fans;
And/or the second air duct of each heat exchange core body is communicated with at least two second fans, and the at least two second fans are arranged along the air outlet direction vertical to the second fans and the air outlet direction vertical to the second air duct.
In an embodiment, the casing is provided with an air inlet and an air outlet, the air inlet and the air outlet are both communicated with the second air duct, and the direction of the air inlet is perpendicular to or parallel to the direction of the air outlet.
The utility model also provides a grid-connected cabinet which comprises a heating device and the radiating structure, wherein the heating device is arranged in the inner cavity and is positioned in the circulating flow channel.
In an embodiment, at least the inner wall of the cabinet remote from the blower sub-channel forms part of the cavity wall of the inner cavity in the blowing direction of the blower sub-channel.
According to the technical scheme, the heat exchange core body is arranged in the shell, so that the shell has a protection effect on the heat exchange core body. Through being connected casing and cabinet body, be equipped with the chamber that flow equalizes in the casing, the first wind channel of heat transfer core has return air sub-runner and bloies sub-runner, return air sub-runner and bloies sub-runner all with the internal inner chamber intercommunication of cabinet, flow equalizes the chamber and locate between return air sub-runner and bloies sub-runner and with return air sub-runner intercommunication, and inner chamber, return air sub-runner, flow equalizes the chamber and bloies sub-runner intercommunication in proper order and jointly form confined circulation runner, first fan locates on the circulation runner, then can make the air current of inner chamber, the air current in the chamber that flow equalizes and the air current in the first wind channel can form the circulation flow in this circulation runner, the air current in the inner chamber can get into return air sub-runner section under the effect of first fan, and then carry out first heat exchange with the heat transfer core in the first wind channel, thereby realize the effect of carrying out first cooling to the air current that gets into in the first wind channel, then by the heat transfer core carries out the air current that once cools down and flow equalizing the intracavity, and then get into bloies sub-runner, make the air current and heat transfer core carry out the second heat exchange, then the effect of the heat dissipation device is carried out to the internal heat dissipation by the cabinet by the back to the inner chamber of cabinet under the effect of first wind. Further, the air current that is blown to the inner chamber by first fan drive can turn back after the inner wall of inner chamber, and then is sucked to first wind channel under the suction effect of first fan again to carry out at least twice heat exchange with the heat exchange core again and in order to be cooled down, the air current that is cooled down is blown to the inner chamber of the cabinet body by first fan along circulation runner again. In addition, in the process of carrying out primary circulation flow on the air flow, the air flow passes through the heat exchange core body twice to exchange heat with the heat exchange core body, so that the heat exchange efficiency is improved, and the heat exchange effect is enhanced. In addition, still be equipped with first wind channel, flow equalizing chamber and the equal second wind channel of keeping apart of inner chamber through the heat exchange core, and second wind channel and the outer and inner chamber intercommunication of casing, then can also make external cold air flow and heat exchange core heat transfer, thereby guarantee that heat exchange core temperature is lower, with can last to introducing the air current in first wind channel from the cabinet body, guarantee to the internal good radiating effect of cabinet, and the second wind channel is kept apart with first wind channel, and keep apart with the inner chamber, then can reduce dust, rainwater or other debris and get into the internal risk of cabinet through the second wind channel, guarantee that this heat radiation structure both has good radiating effect, still possess high protection level.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the internal structure of a first embodiment of the grid-connected cabinet of the present utility model;
FIG. 2 is a side view of an example of the heat dissipating structure of FIG. 1;
FIG. 3 is a side view of another example of the heat dissipating structure of FIG. 1;
FIG. 4 is a schematic diagram of the internal structure of a second embodiment of the grid-connected cabinet of the present utility model;
FIG. 5 is a side view of an example of the upper half of the heat dissipating structure of FIG. 4;
FIG. 6 is a side view of another example of the upper half of the heat dissipating structure of FIG. 4;
FIG. 7 is a side view of an example of the lower half of the heat dissipating structure of FIG. 4;
FIG. 8 is a side view of another example of the lower half of the heat dissipating structure of FIG. 4;
FIG. 9 is a schematic diagram illustrating an internal structure of a third embodiment of the grid-connected cabinet of the present utility model;
FIG. 10 is a schematic diagram of the internal structure of a fourth embodiment of the grid-connected cabinet of the present utility model;
FIG. 11 is a side view of an example of the upper half of the heat dissipating structure of FIG. 10;
FIG. 12 is a side view of another example of the upper half of the heat dissipating structure of FIG. 10;
FIG. 13 is a side view of an example of the lower half of the heat dissipating structure of FIG. 10;
FIG. 14 is a side view of another example of the lower half of the heat dissipating structure of FIG. 10;
FIG. 15 is a schematic view illustrating the internal structure of a fifth embodiment of the grid-connected cabinet according to the present utility model;
Fig. 16 is a schematic internal structure of a sixth embodiment of the grid-connected cabinet according to the present utility model.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Cabinet body | 101 | Inner cavity |
| 200 | Heat dissipation main body | 210 | Shell body |
| 220 | Heat exchange core | 230 | First fan |
| 240 | Second fan | 201 | Flow equalizing cavity |
| 202 | Communication cavity | 300 | Heating device |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present utility model), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The utility model provides a heat dissipation structure.
In the technical scheme of the utility model, referring to fig. 1, 4, 9, 10, 15 and 16, the heat dissipation structure comprises a cabinet body 100 and a heat dissipation main body 200, wherein an inner cavity 101 is arranged in the cabinet body 100, the heat dissipation main body 200 comprises a shell 210, a heat exchange core 220 and a first fan 230, the shell 210 is connected with the cabinet body 100, a flow equalizing cavity 201 is arranged in the shell 210, the heat exchange core 220 is provided with a first air channel and a second air channel which are mutually isolated, the first air channel is provided with a return air sub-channel and a blowing sub-channel, the return air sub-channel and the blowing sub-channel are both communicated with the inner cavity 101, the flow equalizing cavity 201 is communicated between the return air sub-channel and the blowing sub-channel, the inner cavity, the return air sub-channel, the flow equalizing cavity 201 and the blowing sub-channel are sequentially communicated to form a closed circulation channel, an air inlet end of the second air channel and an air outlet end of the second air channel are both communicated to the outside of the shell 210 and the inner cavity 101 and are isolated from the inner cavity 101 and the flow equalizing cavity 201, and the first fan 230 is arranged on the circulation channel to accelerate gas flow.
The cabinet body 100 can be a cabinet body 100 requiring heat dissipation, such as a grid-connected cabinet, a power distribution cabinet and the like. In the technical scheme of the utility model, the heat dissipation main body 200 is a device for mainly dissipating heat of the cabinet 100, the heat dissipation main body 200 comprises a shell 210, the shell 210 is connected to the cabinet 100, a flow equalizing cavity 201 is arranged in the shell 210, a heat exchange core 220 is arranged in the shell 210 and is provided with a first air duct, the first air duct comprises a return air sub-runner and a blowing sub-runner, the return air sub-runner and the blowing sub-runner are communicated with an inner cavity 101 of the cabinet 100, the inner cavity 101, the return air sub-runner, the flow equalizing cavity and the blowing sub-runner are sequentially communicated and jointly form a closed circulation runner, the first fan 230 is arranged on the circulation runner, so that the air flow of the inner cavity 101 in the cabinet 100 can be sucked into the return air sub-runner under the suction of the first fan 230, the air flow entering the return air sub-runner and the heat exchange core 220 can perform first heat exchange, and the air flow after the first heat exchange enters the flow equalizing cavity 201, and then enters the blowing sub-runner after the air equalizing cavity 201 to perform second heat exchange, and then the first fan 230 is used for performing heat exchange to the inner cavity 101 in the cabinet 100, so as to perform heat dissipation on the heat dissipation device 300; then, the air flow blown to the inner cavity 101 will turn back when hitting the wall surface of the inner cavity 101, so as to continue to radiate the heat of the heating device 300 again under the action of the first fan 230, and flow into the first air channel of the heat exchange core 220 again, and then exchange heat with the heat exchange core 220 again, after air is uniformly distributed through the air equalizing cavity 201, the air flow enters the heat exchange core 220 again to exchange heat, and finally flows into the inner cavity 101 in the cabinet 100 again under the action of the first fan 230. In the process that the air flow sequentially passes through the inner cavity 101, the return air sub-flow passage, the flow equalizing cavity 201, the blowing sub-flow passage and the inner cavity 101, the air flow can be subjected to heat exchange at least twice once in a circulating manner, so that the heat exchange efficiency is improved, and the heat exchange effect is good. It can be appreciated that in the circulating flow process, since the air flow in the inner cavity 101 of the cabinet body 100 only enters the shell 210 and then enters the inner cavity 101 of the cabinet body 100 under the drive of the first fan 230 through the at least two heat exchange actions of the heat exchange core 220, the first air duct may not be communicated with the outside, that is, the circulating flow of the air flow in the cabinet body 100 is performed in a closed environment, so that a good sealing effect on the devices in the cabinet body 100 can be achieved, the protection level of the cabinet body 100 is improved, and dust or rainwater is prevented from entering the cabinet body 100 to affect the devices in the cabinet body 100. The housing 210 may be entirely connected to the outside of the cabinet 100, or may be partially disposed inside the cabinet 100. When the housing 210 is connected to the cabinet 100, it may be implemented by a screw connection, a snap connection, or welding.
Specifically, the return air sub-flow passage in the first air duct can be in a shape of a straight line, an L, a U or an S, etc. The blowing sub-flow passage in the first air duct can also be in a straight shape, an L shape, a U shape or an S shape, etc. The first fan 230 may be disposed in the return air sub-flow path, at an air inlet end of the return air sub-flow path, at an air outlet end of the return air sub-flow path, in the flow equalizing chamber, at an air inlet end of the air sub-flow path, at an air outlet end of the air sub-flow path, and in the cavity 101. For example, when the first air duct is formed by a plurality of parallel-arranged linear channels, one end of each linear channel can be close to the inner cavity 101 of the cabinet body 100, and the other end of each linear channel is far away from the inner cavity 101 of the cabinet body 100, the first fan 230 can correspond to a part of ports of one end of each linear channel close to the inner cavity 101 of the cabinet body 100, so that a blowing sub-channel is formed by a channel corresponding to the part of ports in the first air duct, and a channel, which is not corresponding to the first fan 230, of one end of each linear channel close to the inner cavity 101 of the cabinet body 100 is a return air sub-channel, so that the first air duct is communicated with the inner cavity 101 and forms a closed circulation channel together with the inner cavity 101. When the first air duct is L-shaped, U-shaped or S-shaped, both ports of the first air duct are communicated with the cabinet body 100, and the first fan 230 may be disposed at an air inlet end of the first air duct or an air outlet end of the first air duct. In addition, the flow equalizing cavity 201 may be linear, bent, arc-shaped, or the like. The flow equalizing cavity 201, the return air sub-flow passage and the blowing sub-flow passage can jointly form a straight-line-shaped passage, an L-shaped passage, a U-shaped passage or an S-shaped passage and the like. The flow equalizing cavity 201 may be formed by the inner wall of the housing 210 and the wall surface of the heat exchange core, or may be an independent tube structure.
In order to ensure that the heat exchange core 220 can always cool the air flow blown out of the cabinet body 100, the heat exchange core 220 in the technical scheme of the utility model further comprises a second air duct, and the air inlet end and the air outlet end of the second air duct are communicated with the outside of the shell 210 and the outside of the cabinet body 100, so that external cold air can enter the second air duct to cool the heat exchange core 220, thereby realizing good heat dissipation effect of the heat exchange core 220, ensuring that the heat exchange core 220 can continuously cool the air flow blown out of the cabinet body 100, further blowing the air flow cooled by the heat exchange core 220 back into the cabinet body 100 through the first fan 230, and further carrying out good heat dissipation effect on devices in the cabinet body 100. In addition, the second air duct is isolated from the first air duct, the inner cavity 101 and the flow equalizing cavity 201, so that dust or rainwater can be prevented from entering the first air duct or the flow equalizing cavity 201 through the second air duct, and then is blown into the inner cavity of the cabinet 100 through the first fan 230, or can be prevented from directly entering the inner cavity 101 of the cabinet 100. Specifically, the airflow passing through the second air duct may be natural airflow, or the second fan 240 may be disposed in the housing 210, so that the second fan 240 is communicated with the air inlet end of the second air duct or the air outlet end of the second air duct, so that the cold air at the air inlet end of the second air duct passes through the heat exchange core 220 under the driving of the second fan 240, and then the heat of the heat exchange core 220 is blown out of the housing 210 and the cabinet 100 from the air outlet end of the second air duct. In an example, the first air channel and the second air channel may be both linear, and the first air channel and the second air channel may be disposed vertically, or the first air channel and the second air channel may be disposed at an acute angle or an obtuse angle, so that the risk that the second air channel is communicated with the interior of the cabinet 100 may be avoided. For example, the first air channel may be in a horizontal direction, the second air channel may extend in a direction having an acute angle or an obtuse angle with the horizontal direction, or the first air channel may be in a horizontal direction, and the second air channel may be in a vertical direction. Of course, the first air duct may not be linear, for example, the first air duct may be L-shaped or S-shaped, as long as the effect that the first air duct can communicate with the inside of the cabinet 100 can be achieved.
According to the technical scheme, the heat exchange core 220 is arranged in the shell 210, so that the shell 210 has a protection effect on the heat exchange core 220. Through being connected casing 210 with cabinet 100, be equipped with the chamber that flow equalizes 201 in the casing 210, the first wind channel of heat exchange core 220 has return air sub-runner and bloies sub-runner, return air sub-runner and bloies sub-runner all with the inner chamber 101 in the cabinet 100 intercommunication, flow equalizes 201 locates between sub-runner and bloies sub-runner and with return air sub-runner and bloies sub-runner intercommunication, and inner chamber 101, return air sub-runner, flow equalizes 201 and bloies sub-runner intercommunication in proper order and jointly form confined circulation runner, first fan 230 locates on the circulation runner, then can make the air current of inner chamber 101, the air current in flow equalizes 201 and the air current in the first wind channel can form the circulation flow in this circulation runner, the air current in inner chamber 101 can get into return air sub-runner section under the effect of first fan 230, and then carry out the first heat exchange with heat exchange core 220 in first wind channel, thereby realize the effect of carrying out the first cooling to the air current that gets into in the first wind channel, then, the air current that is carried out the primary cooling by heat exchange core 220 gets into the chamber 201 and then get into sub-runner, make the air current in the cabinet and the heat exchange core 220 carries out the effect of the heat dissipation device to the second heat exchange core 100 in the cabinet under the effect of the second wind channel, thereby the heat exchange core 100 is carried out to the heat dissipation device is carried out to the heat exchange core 100 in the second wind in the inner chamber, the heat exchange core is carried out the heat exchange core 100. Further, the air flow blown to the inner cavity 101 by the first fan 230 is turned back after passing through the inner wall of the inner cavity 101, and is sucked into the first air duct again under the suction action of the first fan 230, so that the air flow is subjected to heat exchange with the heat exchange core 220 at least twice again to be cooled, and the cooled air flow is blown into the inner cavity 101 of the cabinet 100 by the first fan 230 along the circulation flow channel again. In addition, in the process of performing primary circulation flow of the air flow, the air flow passes through the heat exchange core 220 twice to exchange heat with the heat exchange core 220, so that the heat exchange efficiency is improved, and the heat exchange effect is enhanced. In addition, the heat exchange core 220 is further provided with a second air channel which is isolated from the first air channel, the flow equalizing cavity 201 and the inner cavity 101, and the second air channel is communicated with the outside of the shell 210 and the outside of the inner cavity 101, so that external cold air flow can exchange heat with the heat exchange core 220, the temperature of the heat exchange core 220 is ensured to be lower, the air flow introduced into the first air channel from the cabinet 100 can be continuously cooled, the good heat dissipation effect inside the cabinet 100 is ensured, the second air channel is isolated from the first air channel and isolated from the inner cavity 101, the risk that dust, rainwater or other sundries enter the cabinet 100 through the second air channel can be reduced, the heat dissipation structure is ensured to have good heat dissipation effect, and the heat dissipation structure is also provided with high protection level.
In an embodiment, the at least two air return sub-channels are respectively arranged at two opposite sides of the at least one air blowing sub-channel.
By the arrangement, the air flow blown from the blowing sub-flow passage to the inner cavity 101 can be continuously split to two opposite directions so as to further flow to at least two return air sub-flow passages respectively under the action of the first fan, so that the heat dissipation area is increased, and the heat dissipation efficiency is further improved.
Further, referring to fig. 1, 4, 9, 10, 15 and 16, a flow equalizing cavity 201 is formed between a side of the heat exchange core 220 facing away from the cabinet 100 and the housing 210.
By forming the flow equalizing cavity 201 between the side of the heat exchanging core 220 facing away from the cabinet 100 and the housing 210, the housing 210 serves as a part of the air duct wall of the first air duct, thereby saving materials.
Of course, it should be understood that in other embodiments, the flow equalizing chamber 201 may be a separate housing structure that is mounted in the housing 210 and independent of the housing 210, regardless of material cost and installation cost.
In an embodiment, referring to fig. 1, 4, 9, 10, 15 and 16, the first fan 230 is communicated with the first air duct through the communication cavity 202.
Specifically, the first fan 230 may be located inside the cabinet 100 or may be located outside the cabinet 100. The first fan 230 may be disposed on an air inlet side of the first air duct, or may be disposed on an air outlet side of the first air duct. Through the communication between the first fan 230 and the first air duct through the communication cavity 202, the air flow is blown out through the first fan 230 after being collected by the communication cavity 202, so as to achieve a better blowing effect.
In an embodiment, referring to fig. 1, fig. 4, fig. 9, fig. 10, fig. 15, and fig. 16 in combination, the heat dissipation structure further includes a second fan 240, and the second fan 240 is connected to the second air duct.
Through setting up second fan 240, and second fan 240 intercommunication second wind channel, then make in second fan 240 can drive outside cold wind gets into casing 210 through the second wind channel to blow out the hot-blast casing 210 outside with the casing 210 in the casing 210 under the drive action of second fan 240, thereby accelerated the flow efficiency of air current, promoted the radiating effect to heat exchange core 220.
Specifically, the second fan 240 may be disposed at an air inlet end of the second air duct, an air outlet end of the second air duct, or the second fan 240 may be disposed in the second air duct.
Further, referring to fig. 1 to 3, at least two heat exchange cores 220 are disposed in the housing 210 at intervals, and at least one second fan 240 is communicated with the second air channels of at least two adjacent heat exchange cores 220.
By communicating at least one second fan 240 with the second air channels of two adjacent heat exchange cores 220, the air flows in the second air channels of two adjacent heat exchange cores 220 can flow simultaneously under the driving of the same second fan 240, so that the heat dissipation efficiency is improved, the number of second fans 240 is saved, and the material cost is reduced. Specifically, in an example, one second fan 240 may be placed in communication with the second air channels of two adjacent heat exchange cores 220. Or in another example, at least two second fans 240 are disposed between two adjacent heat exchange cores 220, each second fan 240 being in communication with a second air duct of the two adjacent heat exchange cores 220.
Of course, in other embodiments, referring to fig. 4 to 16, the second air channels of different heat exchange cores 220 may be correspondingly communicated with the different second fans 240, so that the number of the second fans 240 is the same as the number of the heat exchange cores 220, or the number of the second fans 240 is multiple with the number of the heat exchange cores 220.
Specifically, referring to fig. 5, 7, 11 and 13, a heat exchange core 220 is disposed corresponding to a second fan 240. Or referring to fig. 6, 8, 12 and 14, one heat exchange core 220 is disposed corresponding to at least two second fans 240. It can be appreciated that when the power of the devices in the cabinet 100 is larger and the heat is generated more, the heat exchange core 220 may adopt a core with a larger heat exchange area, so that the number of the second air channels in the heat exchange core 220 or the size of the second air channels is larger, and at this time, one heat exchange core 220 may be disposed corresponding to at least two second fans 240.
Further, referring to fig. 6, 8, 12 and 14, the second air duct of each heat exchange core 220 is communicated with at least two second fans 240, and the at least two second fans 240 are arranged along the air outlet direction perpendicular to the second fans 240 and the air outlet direction perpendicular to the second air duct.
By the arrangement, at least two second fans 240 can be arranged in parallel, but not in series, so that the at least two second fans 240 can drive airflow in the second air duct to flow at the same time, the airflow flow rate is improved, and the heat exchange efficiency is improved. Specifically, the second air duct may be straight or bent.
In an example, when the second air duct is in a straight cylinder shape, the air outlet direction of the second fan 240 may be the same as the air outlet direction of the second air duct, and when the arrangement directions of the at least two second fans 240 are arranged along the air outlet direction perpendicular to the second fan 240, the arrangement directions of the at least two second fans 240 are arranged along the air outlet direction perpendicular to the second air duct.
In another example, when the second air duct is in a bent shape similar to an L shape and the second fan 240 is close to the air inlet end of the second air duct, the air outlet direction of the second fan 240 and the air outlet direction of the second air duct may be perpendicular to each other, and by setting the arrangement direction of at least two second fans 240 to be perpendicular to the air outlet direction of the second fan 240 and the air outlet direction of the second air duct, the airflow flow rate may be improved, and further the heat exchange efficiency may be improved.
In still another example, when the second air duct is in a bent shape similar to an L shape and the second fans 240 are close to the air outlet ends of the second air duct, the air outlet direction of the second fans 240 may be the same as the air outlet direction of the second air duct, and the arrangement directions of the at least two second fans 240 are arranged along the air outlet direction perpendicular to the second air duct 240, that is, the arrangement directions of the at least two second fans 240 are arranged along the air outlet direction perpendicular to the second air duct.
Similarly, referring to fig. 5, 7, 11 and 13, a heat exchange core 220 may be disposed corresponding to a first fan 230. Alternatively, referring to fig. 6, 8, 12 and 14, one heat exchange core 220 may be disposed corresponding to at least two first fans 230.
Further, referring to fig. 6, 8, 12 and 14, the first air duct of each heat exchange core 220 is communicated with at least two first fans 230, and the at least two first fans 230 are arranged along the air outlet direction perpendicular to the first fans 230.
By the arrangement, at least two first fans 230 are arranged in parallel, but not in series, so that at least two first fans 230 can drive airflow in the first air duct to flow at the same time, airflow flow rate is improved, and heat dissipation efficiency of the inner cavity 101 of the cabinet body 100 and parts in the inner cavity 101 is improved.
In an embodiment, referring to fig. 1, fig. 4, fig. 9, fig. 15 and fig. 16, the housing 210 is provided with an air inlet and an air outlet, both of which are communicated with the second air duct, and the direction of the air inlet is perpendicular to the direction of the air outlet.
For example, when the case 210 is connected to the left side wall of the cabinet 100, the heat exchange core 220 is disposed at the left side of the cabinet 100, that is, the flow direction of the air flow blown from the first air duct toward the inner cavity 101 of the cabinet 100 is the rightward direction. The air inlet direction of the second air duct may be set to an upward or downward direction, at this time, the air inlet of the housing 210 is formed on the bottom wall or the top wall of the housing 210, and when the air outlet of the housing 210 is communicated with the second air duct, the air outlet of the housing 210 may be formed on a side of the housing 210 facing away from the cabinet body 100, i.e. the air outlet of the housing 210 is formed on the left side wall of the housing 210. When the second fan 240 is disposed on the air outlet side of the second air duct, the second fan 240 may be disposed on a side wall of the housing 210 facing away from the cabinet 100 and is communicated with the air outlet.
By the arrangement, the air outlet direction of the air flow passing through the second air duct can face the direction away from the cabinet body 100, so that the influence of the hot air flow blown out from the housing 210 on the cabinet body 100 is small.
In another embodiment, as shown in fig. 10, the casing 210 is provided with an air inlet and an air outlet, both of which are communicated with the second air duct, and the direction of the air inlet is parallel to the direction of the air outlet.
For example, the air inlet and the air outlet may be respectively disposed on the top wall and the bottom wall of the housing 210, or the air inlet and the air outlet may be respectively disposed on the bottom wall and the top wall of the housing 210, so that the air outlet direction of the air flow passing through the second air duct is the same as the air inlet direction, thereby shortening the air flow path and improving the heat dissipation efficiency of the heat exchange core 220.
The utility model further provides a grid-connected cabinet, please refer to fig. 1, fig. 4, fig. 9, fig. 10, fig. 15 and fig. 16, wherein the grid-connected cabinet comprises a heating device 300 and a heat dissipation structure, and the specific structure of the heat dissipation structure refers to the above embodiment. The heating device 300 is disposed in the inner cavity 101 and is located in the circulation flow channel.
By the arrangement, the air flow cooled by the heat exchange core 220 can be directly blown to the heat generating device 300, and then the heat generating device 300 can be subjected to targeted heat dissipation, so that a better heat dissipation effect is achieved. Specifically, the heat generating device 300 may include a circuit breaker, a contactor, and the like.
Further, referring to fig. 1, 4, 9, 10, 15 and 16, at least the inner wall of the cabinet 100 away from the blowing sub-flow passage forms part of the cavity wall of the cavity 101 in the blowing direction of the blowing sub-flow passage.
By the arrangement, the air flow flowing into the inner cavity 101 from the first air channel substantially flows into the cabinet body 100, so that the air flow returns after touching the inner wall of the cabinet body 100, and the path through which the air flow flows is prolonged, so that more areas in the cabinet body 100 are radiated, a good radiating effect is achieved, and radiating efficiency is improved. In addition, by the arrangement, the material cost and the installation cost are reduced.
Of course, in other embodiments, a separate shell structure may be provided within the cabinet 100 to form the interior cavity 101.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A heat dissipation structure, comprising:
A cabinet body, an inner cavity is arranged in the cabinet body, and
A heat dissipating body comprising:
The shell is connected to the cabinet body, and a flow equalizing cavity is arranged in the shell;
The heat exchange core body is arranged in the shell, the heat exchange core body is provided with a first air channel and a second air channel which are mutually isolated, the first air channel is provided with an air return sub-channel and an air blowing sub-channel, the air return sub-channel and the air blowing sub-channel are both communicated with the inner cavity, the flow equalizing cavity is communicated between the air return sub-channel and the air blowing sub-channel, the inner cavity, the air return sub-channel, the flow equalizing cavity and the air blowing sub-channel are sequentially communicated and jointly form a closed circulating channel, the air inlet end of the second air channel and the air outlet end of the second air channel are both communicated outside the shell and the inner cavity and are isolated from the flow equalizing cavity, and
The first fan is arranged on the circulating flow passage and used for accelerating the flow rate of gas.
2. The heat dissipation structure as defined in claim 1, wherein at least two return air sub-channels are provided, and at least two return air sub-channels are respectively provided at two opposite sides of at least one of the blowing sub-channels.
3. The heat dissipating structure of claim 2, wherein said flow equalizing chamber is formed between said housing and a side of said heat exchanging core facing away from said cabinet.
4. The heat dissipating structure of claim 1, wherein said first fan is in communication with said first air duct via a communication chamber.
5. The heat dissipating structure of claim 1, further comprising a second fan in communication with said second air duct.
6. The heat dissipating structure of claim 5, wherein said housing has at least two heat exchanging cores disposed therein at intervals, at least one of said second fans being in communication with said second air channels of at least two adjacent heat exchanging cores.
7. The heat dissipating structure of claim 5, wherein said first air duct of each of said heat exchanging cores is in communication with at least two first fans, said at least two first fans being arranged in a direction perpendicular to an air outlet direction of said first fans;
And/or the second air duct of each heat exchange core body is communicated with at least two second fans, and the at least two second fans are arranged along the air outlet direction vertical to the second fans and the air outlet direction vertical to the second air duct.
8. The heat dissipating structure of any of claims 1 to 7, wherein the housing is provided with an air inlet and an air outlet, both of which are in communication with the second air duct, and the orientation of the air inlet is perpendicular to or parallel to the orientation of the air outlet.
9. A grid-connected cabinet, comprising a heating device and the heat dissipation structure according to any one of claims 1 to 8, wherein the heating device is disposed in the inner cavity and is located in the circulation flow channel.
10. The grid tie cabinet of claim 9, wherein at least an inner wall of the cabinet body remote from the blower sub-flow path forms a portion of the cavity wall of the interior cavity in a blowing direction of the blower sub-flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420380917.8U CN222546993U (en) | 2024-02-28 | 2024-02-28 | Heat dissipation structure and grid cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420380917.8U CN222546993U (en) | 2024-02-28 | 2024-02-28 | Heat dissipation structure and grid cabinet |
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| CN222546993U true CN222546993U (en) | 2025-02-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120109684A (en) * | 2025-03-31 | 2025-06-06 | 天津迈能科技有限公司 | A distribution box with a multi-level heat dissipation structure |
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2024
- 2024-02-28 CN CN202420380917.8U patent/CN222546993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120109684A (en) * | 2025-03-31 | 2025-06-06 | 天津迈能科技有限公司 | A distribution box with a multi-level heat dissipation structure |
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