Cabinet electrical element heat dissipation structure and electrical cabinet with water and electricity separated

Abstract

The utility model discloses a cabinet electrical element heat radiation structure and a water and electricity separated electrical cabinet, a cabinet body of the cabinet is provided with a first area and a second area which are separated by a first separator plate, and the first area is in a closed state; the first area is provided with a heat conduction piece, and the electrical element needing heat dissipation is attached to the heat conduction piece. The second area is provided with a radiator for radiating heat in a liquid cooling manner; the heat conduction piece extends towards the second area and penetrates through the first partition plate so as to be attached to the heat dissipation face of the radiator. The heat dissipation structure can solve the problem that normal use of electrical elements in the cabinet is affected by liquid leakage when a liquid cooling radiator is adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of cabinet liquid leakage prevention, in particular to a cabinet electrical component heat dissipation structure and an electrical cabinet with water and electricity separation. Background Art

[0002] Traditional electrical cabinets generally have multiple fans installed inside the cabinet to dissipate heat through forced air cooling. Air cooling has the problems of high energy consumption, high noise and low cooling efficiency. With the development of technology, it has become possible to install a liquid cooling system in the electrical cabinet. Liquid cooling technology uses liquid heat transfer media with high cooling efficiency, such as water, oil or ethylene glycol, to exchange heat. Specifically, according to the type of electrical components that need to be cooled, a corresponding liquid cooling component will be designed. This liquid cooling component may include a radiator for heat exchange with the electrical components, a heat exchanger for heat exchange with the external environment, and a liquid cooling pipe connecting the heat exchanger and the radiator. A liquid cooling medium flow channel is provided inside the radiator. The liquid cooling pipe transports the liquid cooling medium with a lower temperature of the heat exchanger to the flow channel inside the radiator, and then transports the liquid cooling medium with a higher temperature in the radiator to the heat exchanger. However, in actual applications, in order to facilitate the installation of the radiator and the liquid cooling pipe, the radiator is generally installed in the electrical cabinet first, and then the liquid cooling pipe is connected to the radiator through the quick connector. After being used for a period of time, the quick connector is prone to leakage, affecting the normal use of the electrical components inside the cabinet. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a cabinet electrical component heat dissipation structure and an electrical cabinet with water and electricity separation. The heat dissipation structure can improve the problem of leakage affecting the normal use of electrical components in the cabinet when using a liquid-cooled radiator.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Technical Solution 1: A heat dissipation structure for electrical components of a cabinet, wherein the cabinet body is provided with a first area and a second area separated by a first partition, the first area is in a closed state; the first area is provided with a heat conductor, and the electrical components that need to dissipate heat are abutted against the heat conductor; the second area is provided with a radiator that dissipates heat by liquid cooling; the heat conductor extends toward the second area and passes through the first partition to abut against the heat dissipation surface of the radiator.

[0006] Technical solution 2 based on technical solution 1: the first area is provided with a mounting base, and the heat conducting member and the electrical component are fixedly mounted on the mounting base.

[0007] Technical solution three based on technical solution two: a plurality of the heat conducting members and electrical components are provided separately from each other, and each heat conducting member corresponds to each electrical component one by one.

[0008] Technical solution four based on technical solution three: the electrical component is installed on the mounting surface of the mounting base; the heat conductor is embedded in the mounting surface of the mounting base and is flush with the mounting surface.

[0009] Technical solution 5 based on any one of technical solutions 1 to 4: the heat conducting element is a sealed heat pipe having a phase change heat medium inside.

[0010] Technical solution six based on technical solution five: the part of the heat conductor close to the radiator is the condensation section, the part close to the electrical component is the evaporation section, and the evaporation section is located lower than the condensation section in the vertical direction.

[0011] Technical solution seven based on technical solution six: the extension direction of the condensation section of the heat conducting component on the radiator is perpendicular to the extension direction of the liquid cooling channel in the radiator for conveying liquid cooling medium.

[0012] Technical solution eight based on technical solution seven: the heat conducting component is fixed to the heat sink by low-temperature welding.

[0013] Technical solution nine based on technical solution eight: the cabinet is provided with a third area separated from the second area by a second partition, and the first area and the second area are in a closed state; the third area is provided with a heat exchanger, which is connected to the radiator through a liquid cooling pipe for conveying liquid cooling medium, and the liquid cooling pipe passes through the second partition.

[0014] In addition, the present invention also provides Technical Solution 10: an electrical cabinet with separated water and electricity, which adopts the cabinet electrical component heat dissipation structure as described in any one of Technical Solutions 1 to 9 to prevent external liquid from leaking into the first area of ​​the cabinet body.

[0015] From the above description of the utility model, it can be seen that compared with the prior art, the utility model has the following beneficial effects:

[0016] Technical solution 1 provides a heat dissipation structure for electrical components of a cabinet, wherein the cabinet body of the cabinet is divided into a first area and a second area by a first partition, the first area is in a closed state, and the first area can accommodate electrical components that need heat dissipation. In practical applications, the first area can be designed as a cabin with a higher protection level, such as an IP65 protection cabin. Due to the existence of the first partition, rainwater from the outside is difficult to enter the first area; a heat conductor is arranged in the first area, and the electrical components that need heat dissipation are attached to the heat conductor, and the heat generated by the electrical components when working will be transferred to the heat conductor; the second area can be a sealed cabin or an exposed part of the cabinet body, which can be used to place devices with lower protection level requirements; a radiator is arranged in the second area, and the radiator dissipates heat in a liquid cooling manner, so the radiator needs to be connected to an external liquid cooling medium. The conventional method of using a quick connector for water connection is very likely to cause leakage of the radiator due to aging of the quick connector after long-term use; in this technical solution, after the radiator is arranged in the second area, even if the radiator leaks, since the first partition is arranged between the first area and the second area, the leakage will not Affects the electrical components in the first area; however, if the radiator is set in the second area and the electrical components are set in the first area, then the heat dissipation of the electrical components will become a difficult problem to solve. For this reason, the technical solution allows the heat conductor in the first area to extend toward the second area and penetrate the first partition, and the heat conductor extending to the second area is close to the heat dissipation surface of the radiator. In this case, the temperature of the radiator is low, while the temperature of the electrical components is high. Heat will be transferred from the position of the electrical components to the position of the radiator through the heat conductor, ensuring that the heat conductor can generate a temperature difference with the electrical components, and the heat dissipation problem of the electrical components is solved; therefore, the heat dissipation structure of the electrical components provided by the technical solution, by arranging the radiator and the electrical components in two mutually separated areas respectively, and then forming a heat exchange circuit between the electrical components and the radiator through the heat conductor, not only solves the leakage problem that is easy to occur in the radiator using liquid cooling for heat dissipation, but also solves the heat dissipation problem of the electrical components, ensuring the normal use of the electrical components; and, it will not destroy the different protection effects of different areas of the cabinet, and the devices with higher protection level requirements can be guaranteed to be protected from the influence of foreign matter such as rain and dust.

[0017] In the second technical solution, a mounting base is provided to provide a base for mounting the electrical components, and a heat conducting member is also provided on the mounting base to facilitate the electrical components and the heat conducting member to be close to each other, thereby improving the overall heat dissipation efficiency.

[0018] In technical solution three, multiple heat conductive parts and electrical components are provided, each heat conductive part is separated from each other, each electrical component is also separated from each other, and each heat conductive part corresponds to an electrical component. The mutually separated layout can avoid mutual influence between electrical components and heat conductive parts. Each heat conductive part corresponds to an electrical component, so that each heat conductive part can independently dissipate heat for an electrical component, thereby improving the heat dissipation efficiency of the electrical component, and less material of the heat conductive part is required, effectively reducing the manufacturing cost.

[0019] In technical solution four, the electrical components are mounted on the mounting surface of the mounting base, which facilitates the installation of the electrical components; at the same time, the heat conductor is embedded in the mounting surface of the mounting base and is flush with the mounting surface, so that the back of the electrical component can be tightly attached to the heat conductor, the position of the heat conductor is firmly fixed, and at the same time, the mutual influence between the heat conductors is isolated by the mounting base.

[0020] In technical solution five, the heat conductor is a sealed heat pipe with a phase-change heat medium inside. The heat exchange efficiency of the heat pipe is higher than that of a simple metal component. The use of the heat pipe can effectively improve the heat exchange efficiency between the electrical components and the radiator.

[0021] In technical solution six, the evaporation section of the heat conductor is located lower than the condensation section in the vertical direction. The lower vertical position here means that at least a part of the condensation section is higher than the entire evaporation section, rather than requiring the entire condensation section to be higher than the evaporation section. This structural design enables the phase change heat medium in the condensation section to quickly reach the evaporation section with the help of gravity after condensation, thereby further improving the heat exchange efficiency of the heat conductor.

[0022] In Technical Solution 7, the extension direction of the condensation section of the heat conductor is perpendicular to the extension direction of the liquid-cooling flow channel in the radiator, so as to avoid the situation where the heat conductor as a whole extends in the same direction as the flow channel. In this case, the overall heat exchange efficiency of the heat conductor will decrease due to the high temperature of the liquid-cooling medium at the end of the flow channel. Therefore, making the extension directions of the two perpendicular can effectively improve the heat exchange efficiency of the heat conductor.

[0023] In technical solution eight, the heat conductor is fixed to the heat sink by low-temperature welding, which can improve the heat exchange efficiency between the heat conductor and the heat sink. At the same time, low-temperature welding can prevent damage to the heat conductor when it is a heat pipe.

[0024] In Technical Solution Nine, a third area is also provided in the cabinet, and a heat exchanger is provided in the third area. The third area can be completely exposed to ensure the normal use of the heat exchanger, and the liquid cooling medium is cooled by the heat exchanger; at the same time, a multi-level leakage protection area of ​​the first area, the second area and the third area is formed on the cabinet; in actual application scenarios, if the second area is directly exposed, the radiator, related liquid cooling pipes, etc. will be directly exposed to the intrusion of the external environment. After long-term use, aging and damage are prone to occur. By setting three levels of leakage protection and utilizing the relatively independent characteristics of the second area, the normal use of the radiator and liquid cooling pipes can be guaranteed and the service life can be extended.

[0025] Technical solution ten provides an electrical cabinet with separated water and electricity. Since the electrical cabinet adopts the above-mentioned cabinet electrical component heat dissipation structure, it can prevent external liquid leakage from affecting the electrical components in the first area, and realizes a cabinet layout that separates the parts where liquid leakage may occur from the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the structure of an electrical cabinet provided in an embodiment of the utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of the heat dissipation structure of electrical components used in the electrical cabinet;

[0029] Figure 3 for Figure 2 Schematic diagram of some structures of heat dissipation structure of electrical components Figure 1 ;

[0030] Figure 4 for Figure 2 Schematic diagram of some structures of heat dissipation structure of electrical components Figure 2 ;

[0031] Figure 5 for Figure 2 Schematic diagram of some structures of heat dissipation structure of electrical components Figure 3 .

[0032] Description of main reference numerals:

[0033] Cabinet 1; cabinet body 2; first partition 3; first area 4; second area 5; heat conductor 6; electrical component 7; radiator 8; heat dissipation surface 9; mounting base 10; mounting surface 11; condensing section 12; evaporating section 13; second partition 14; third area 15; heat exchanger 16; liquid cooling pipe 17; sealing member 18; quick connector 19; flow channel opening 20. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0036] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0037] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0038] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0039] Reference Figure 1 The utility model provides an electrical cabinet with water and electricity separation. Figure 1The main layout structure of the electrical cabinet is shown. The electrical cabinet mainly includes a cabinet body 2, a heat conductor 6, an electrical component 7, a radiator 8 and a heat exchanger 16. The electrical component 7 is located inside the cabinet body 2, and the heat is dissipated by the cooperation of the heat conductor 6, the radiator 8 and the heat exchanger 16. In the present embodiment, the electrical cabinet is a converter, and the above-mentioned electrical component 7 is a power module, and the power module is generally an IGBT switch tube. Of course, this does not mean that the electrical cabinet only includes the above-mentioned devices. Other devices, such as reactors, transformers, etc., can be installed in the cabinet body 2, which can be arranged according to actual needs. In addition, in other embodiments, the electrical cabinet can be other types of electrical cabinets, such as an energy storage cabinet 1, a high-voltage cabinet 1, etc. In different types of electrical cabinets, the types of electrical components 7 can be adjusted according to actual needs.

[0040] Reference Figure 1 In the electrical cabinet with water and electricity separation provided in this embodiment, the electrical components 7 will generate a lot of heat when working, so they need to be cooled. Generally speaking, the heat dissipation method in the electrical cabinet is air cooling. When the cold air is difficult to reach the location of the electrical component 7, or the heat dissipation capacity provided by the cold air is not enough to meet the requirements, it is necessary to dissipate heat in other ways. In this embodiment, the electrical cabinet adopts a new cabinet electrical component heat dissipation structure, which can dissipate heat for specific electrical components 7 that generate heat, and prevent external liquids from affecting the electrical components 7.

[0041] Reference Figure 1 In the above cabinet electrical component heat dissipation structure, the cabinet body 2 of the cabinet 1 is provided with a first area 4 and a second area 5 separated by a first partition 3, wherein the first area 4 is in a closed state, the first area 4 is provided with a heat conductor 6, and the electrical components 7 that need to dissipate heat are attached to the heat conductor 6; the second area 5 is provided with a radiator 8 that dissipates heat by liquid cooling, and the heat conductor 6 extends toward the second area 5 and penetrates the first partition 3 to be attached to the heat dissipation surface 9 of the radiator 8.

[0042] In addition, the cabinet 2 is provided with a third area 15 separated from the second area 5 by a second partition 14, and the first area 4 and the second area 5 are in a closed state; the third area 15 is provided with a heat exchanger 16, which is connected to the radiator 8 through a liquid cooling pipe 17 for conveying liquid cooling medium, and the liquid cooling pipe 17 passes through the second partition 14.

[0043] Specifically, refer to Figure 1The cabinet body 2 of the cabinet 1 includes a frame and a side panel fixed on the frame. The frame is used to define the scope of the cabinet body 2 and support the cabinet body 2. The side panel is used to separate the cabinet body 2 from the outside, so that the cabinet body 2 becomes an independent component. Among them, the cabinet body 2 provided in this embodiment is divided into a first area 4, a second area 5 and a third area 15, wherein the first area 4 and the second area 5 are in a closed state, and the third area 15 is in an open state. The closed state here means that the corresponding area is not directly connected to the outside of the cabinet body 2, or the part separated from the outside of the cabinet body 2 is closed; the open state means that the corresponding area is directly connected to the outside of the cabinet body 2, and rainwater, dust, etc. in the external environment of the cabinet body 2 can directly reach the third area 15. In this embodiment, the first area 4 and the second area 5 have their own protection level requirements, but the protection level requirement of the second area 5 is lower than the protection level requirement of the first area 4. For example, the protection level of the first area 4 is IP66, and the protection level requirement of the second area 5 is IP65.

[0044] Reference Figure 1 The outermost side plate of the cabinet 2 defines the outer boundary of the cabinet 2, and at the same time defines a chamber in the cabinet 2, in which a first area 4 and a second area 5 are defined by a partition. Figure 1 , the partition used to define the first area 4 and the second area 5 is the first partition 3, and the partition defining the first area 4, the second area 5 and the third area 15 is the second partition 14. The first partition 3 and the second partition 14 can be fixed to the frame by bolts. The first area 4 is located at the front side of the cabinet 2, the second area 5 is located at the rear side of the cabinet 2, and the third area 15 is located at the top of the cabinet 2. The electrical component 7 is arranged in the first area 4, the radiator 8 is arranged in the second area 5, and the heat exchanger 16 is arranged in the third area 15. A portion of the heat conductor 6 is located in the first area 4 and a portion is located in the second area 5, and the heat conductor 6 passes through the first partition 3.

[0045] Among them, refer to Figure 2 The radiator 8 dissipates heat by liquid cooling. A liquid cooling channel for conveying liquid cooling medium is provided inside the radiator 8. A channel opening 20 is provided on the radiator 8. The channel opening 20 is connected to the heat exchanger 16 through a liquid cooling pipe 17. The heat exchanger 16 can drive the liquid cooling medium to flow, convey the liquid cooling medium with a lower temperature to the radiator 8, and recover the liquid cooling medium with a higher temperature, thereby completing the circulation of the liquid cooling medium in the radiator 8. Figure 5 The heat sink 8 has a heat dissipation surface 9, and the device in contact with the heat dissipation surface 9 can dissipate heat quickly.

[0046] Reference Figure 1The liquid cooling pipe 17 includes two pipelines, one for conveying low-temperature liquid cooling medium and the other for conveying high-temperature liquid cooling medium. A quick connector 19 is provided on the second partition 14. The quick connector 19 can realize quick connection of the pipelines at both ends. The pipeline of the liquid cooling pipe 17 in the second area 5 is connected to the part below the quick connector 19, and the pipeline in the third area 15 is connected to the part above the quick connector 19. The assembly and maintenance of the liquid cooling pipe 17 can be facilitated by the quick connector 19. The heat exchanger 16 can exchange heat with the outside world by air cooling, so that the recovered high-temperature liquid cooling medium can be quickly cooled down.

[0047] The heat conductor 6 can be made of metal material with high thermal conductivity to quickly transfer heat from the position of the electrical component 7 to the position of the radiator 8. A seal 18, such as a rubber seal, can be set at the position where the heat conductor 6 passes through the first partition 3, or the heat conductor 6 can be directly welded to the first partition 3 to achieve better sealing. The sealing arrangement at the connection between the heat conductor 6 and the first partition 3 can prevent external liquid from entering the first area 4 through the connection between the heat conductor 6 and the first partition 3. It should be noted that the heat conductor referred to in this specification and claims should be understood as follows: the heat conductor is a complete component that is independent of the electrical component and the radiator that need to dissipate heat. It can transfer heat through the characteristics of its own material, and can also transfer heat through the state change of the internal material, but it does not transfer heat to the radiator through the medium.

[0048] In the heat dissipation structure described above, a part of the heat conductor 6 is in contact with the electrical component 7 that needs to be dissipated, and a part of the heat conductor 6 is in contact with the heat dissipation surface 9 of the radiator 8 after passing through the first partition 3. The heat generated by the electrical component 7 during operation will be transferred to the radiator 8 through the heat conductor 6. Since the radiator 8 always keeps dissipating heat to the heat conductor 6, a temperature difference will be generated between the two parts of the heat conductor 6, so that the heat of the electrical component 7 can be continuously transferred to the radiator 8 to achieve heat dissipation of the electrical component 7. At the same time, since the radiator 8 is arranged in the second area 5, and the second area 5 is separated from the first area 4 by the first partition 3, even if the radiator 8 leaks, it will not affect the electrical component 7 in the first area 4. Therefore, the heat dissipation structure of the electrical component 7 mentioned above, by arranging the radiator 8 and the electrical component 7 in two mutually separated areas respectively, and then forming a heat exchange loop between the electrical component 7 and the radiator 8 through the heat conductor 6, not only solves the leakage problem that is easy to occur in the radiator 8 that uses liquid cooling to dissipate heat, but also solves the heat dissipation problem of the electrical component 7, ensuring the normal use of the electrical component 7; and it will not destroy the different protection effects of different areas of the cabinet 2, and the components with higher protection level requirements can be guaranteed to be free from the influence of foreign objects such as rainwater and dust. In addition, a multi-level leakage protection area of ​​the first area 4, the second area 5 and the third area 15 is formed on the cabinet 2; in actual application scenarios, if the second area 5 is directly exposed, the radiator 8, the related liquid cooling pipes 17, etc. will be directly exposed to the intrusion of the external environment. After long-term use, aging, damage, etc. are prone to occur. The three-level leakage protection is set up, and the relatively independent characteristics of the second area 5 are used to ensure the normal use of the radiator 8 and the liquid cooling pipes 17 and extend the service life.

[0049] Reference Figure 1 The first region 4 is provided with a mounting base 10, and the heat conducting member 6 and the electrical component 7 are fixedly mounted on the mounting base 10. Figure 2 The heat conducting member 6 and the electrical component 7 are provided in plurality and separated from each other, and each heat conducting member 6 corresponds to each electrical component 7. The electrical component 7 is mounted on the mounting surface 11 of the mounting base 10; the heat conducting member 6 is embedded in the mounting surface 11 of the mounting base 10 and is flush with the mounting surface 11.

[0050] Specifically, refer to Figures 2 to 4In the first area 4, a mounting base 10 is provided, and the upper surface of the mounting base 10 forms a mounting surface 11. The electrical component 7 can be fixedly mounted on the mounting surface 11 by fasteners such as bolts, and the mounting base 10 can be fixed to the cabinet 2 by bolts. At the same time, the mounting surface 11 of the mounting base 10 is provided with an embedding groove adapted to the size of the heat conductor 6, and the heat conductor 6 is embedded in the embedding groove, and the upper surface of the heat conductor 6 is flush with the mounting surface 11, so that the electrical component 7 can be stably fixed on the mounting base 10 and closely attached to the heat conductor 6. In addition, the heat conductor 6 is installed by embedding, which can avoid the heat conductor 6 from shifting.

[0051] In this embodiment, a plurality of heat conducting members 6 are provided, and a plurality of electrical components 7 are also provided. The number of heat conducting members 6 is the same as the number of electrical components 7, and one heat conducting member 6 is used to dissipate heat for one electrical component 7. The heat conducting members 6 are spatially separated from each other, and the electrical components 7 are also spatially separated from each other. Figure 4 The heat conducting members 6 are arranged on the mounting base 10 in the left-right direction and extend in the front-back direction. Each heat conducting member 6 is separated by the mounting base 10. The mounting base 10 can be made of a material with a low thermal conductivity, thereby reducing the mutual influence between the heat conducting members 6. Figure 3 The electrical components 7 are installed above the corresponding heat-conducting parts 6 , and each electrical component 7 is also separated from each other to avoid mutual influence between the electrical components 7 .

[0052] Among them, the heat conductor 6 of this embodiment is a heat pipe with a phase change heat medium inside. The heat pipe is a conventional heat-conducting element. Compared with conventional metal components, the use of a heat pipe can greatly improve the heat exchange efficiency of the heat conductor 6. It should be noted that each heat conductor 6 can include only one heat pipe or multiple heat pipes. For example, an electrical component 7 can dissipate heat through two heat pipes arranged side by side at the same time. In this embodiment, the heat conductor 6 is fixed to the radiator 8 by low-temperature welding, and the low-temperature welding here can be soldering; the reason for using low-temperature welding is that when the heat conductor 6 adopts a heat pipe, the welding temperature is too high, which will cause damage to the internal structure of the heat pipe and cause the heat pipe to fail. Similarly, when the heat conductor 6 adopts a heat pipe, other fixing methods can also be used to fix the heat conductor 6 to the radiator 8, such as bonding by thermal conductive glue, locking by external fasteners, etc. At the same time, the part of the heat conductor 6 on the mounting base 10 is flattened, and the part on the radiator 8 is not flattened to improve the heat exchange efficiency.

[0053] Reference Figure 1The part of the heat conducting member 6 that is close to the heat sink 8 is the condensation section 12, and the part that is close to the electrical element 7 is the evaporation section 13. The evaporation section 13 is located lower than the condensation section 12 in the vertical direction. In the evaporation section 13 of the heat pipe, the working liquid in the tube core evaporates due to heat, and takes away the heat, which is the evaporation latent heat of the phase change heat medium. The steam flows from the central channel to the condensation section 12 of the heat pipe, condenses into liquid, and releases latent heat at the same time. Under the action of capillary force, the liquid flows back to the evaporation section 13. In this way, a closed cycle is completed, and a large amount of heat can be transferred from the evaporation section 13 to the condensation section 12.

[0054] Reference Figure 5 The condensing section 12 of the heat conducting member 6 extends along a first direction on the radiator 8, and the liquid cooling channel in the radiator 8 for conveying the liquid cooling medium extends along a second direction, and the first direction is perpendicular to the second direction. In this embodiment, the first direction is the up-down direction, and the second direction is the left-right direction.

[0055] Reference Figures 1 to 5 It can be seen that the portion of the heat conductor 6 on the mounting base 10 extends in the front-to-back direction, and the portion on the radiator 8 extends in the up-down direction, that is, the heat conductor 6 forms a bend in the second region 5, so that the position of the condensation section 12 of the heat conductor 6 is higher than the position of the evaporation section 13. It should be noted that the lower position in the vertical direction here means that at least a part of the condensation section 12 is higher than the entire evaporation section 13, rather than requiring that the entire condensation section 12 is higher than the evaporation section 13. This structural design allows the phase-change heat medium in the condensation section 12 to quickly reach the evaporation section 13 by gravity after condensation, thereby further improving the heat exchange efficiency of the heat conductor 6.

[0056] Reference Figure 5 , the liquid cooling channel for conveying liquid cooling medium inside the radiator 8 extends in the left-right direction, and the portion of the heat conducting member 6 on the radiator 8 extends in the up-down direction, so the extension direction of the heat conducting member 6 is perpendicular to the extension direction of the liquid cooling channel. This structure can avoid the situation where the heat conducting member 6 as a whole extends in the same direction as the channel, because if the heat conducting member 6 as a whole extends in the same direction as the channel, the overall heat exchange efficiency of the heat conducting member 6 will decrease due to the high temperature of the liquid cooling medium at the end of the channel. Therefore, making the extension directions of the two perpendicular can effectively improve the heat exchange efficiency of the heat conducting member 6.

[0057] The cabinet electrical component heat dissipation structure and the electrical cabinet with separated water and electricity provided by the utility model not only solve the leakage problem that is easy to occur in the radiator 8 using liquid cooling for heat dissipation, but also solve the heat dissipation problem of the electrical component 7, thereby ensuring the normal use of the electrical component 7; moreover, the different protection effects of different areas of the cabinet 2 will not be damaged, and the devices with higher protection level requirements can be guaranteed to be protected from the influence of foreign objects such as rainwater and dust.

[0058] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. A cabinet electrical component heat dissipation structure, characterized by: The cabinet body (2) of the cabinet (1) is provided with a first area (4) and a second area (5) separated by a first partition (3), and the first area (4) is in a closed state; The first region (4) is provided with a heat conducting member (6), and the electrical component (7) requiring heat dissipation is attached to the heat conducting member (6); The second region (5) is provided with a radiator (8) for dissipating heat by liquid cooling; The heat conducting member (6) extends toward the second region (5) and penetrates the first partition plate (3) so as to abut against the heat dissipation surface (9) of the heat sink (8).

2. A cabinet electrical component heat dissipation structure as claimed in claim 1, characterized in that: The first area (4) is provided with a mounting base (10), and the heat conducting member (6) and the electrical component (7) are fixedly mounted on the mounting base (10).

3. A cabinet electrical component heat dissipation structure as claimed in claim 2, characterized in that: A plurality of the heat conducting members (6) and the electrical components (7) are provided in a mutually separated manner, and each heat conducting member (6) corresponds to each electrical component (7) one by one.

4. A cabinet electrical component heat dissipation structure as claimed in claim 3, characterized in that: The electrical component (7) is mounted on the mounting surface (11) of the mounting base (10); the heat conducting member (6) is embedded in the mounting surface (11) of the mounting base (10) and is flush with the mounting surface (11).

5. A cabinet electrical component heat dissipation structure according to any one of claims 1 to 4, characterized in that: The heat conducting element (6) is a sealed heat pipe having a phase-changing heat medium inside.

6. A cabinet electrical component heat dissipation structure as claimed in claim 5, characterized in that: The portion of the heat conducting member (6) that is in contact with the heat sink (8) is a condensing section (12), and the portion of the heat conducting member (6) that is in contact with the electrical element (7) is an evaporating section (13), wherein the evaporating section (13) is located lower than the condensing section (12) in the vertical direction.

7. A cabinet electrical component heat dissipation structure as claimed in claim 6, characterized in that: The extension direction of the condensation section (12) of the heat conducting member (6) on the radiator (8) is perpendicular to the extension direction of the liquid cooling channel in the radiator (8) for conveying liquid cooling medium.

8. A cabinet electrical component heat dissipation structure as claimed in claim 7, characterized in that: The heat conducting member (6) is fixed to the heat sink (8) by low temperature welding.

9. A cabinet electrical component heat dissipation structure as claimed in claim 8, characterized in that: The cabinet (2) is provided with a third area (15) separated from the second area (5) by a second partition (14), and the first area (4) and the second area (5) are in a closed state; the third area (15) is provided with a heat exchanger (16), which is connected to the radiator (8) through a liquid cooling pipe (17) for conveying a liquid cooling medium, and the liquid cooling pipe (17) passes through the second partition (14).

10. An electrical cabinet with water and electricity separation, characterized in that: The cabinet electrical component heat dissipation structure as claimed in any one of claims 1 to 9 is used to prevent external liquid from leaking into the first area (4) of the cabinet body (2).

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