CN117641836B - Power cabinet - Google Patents
Power cabinetInfo
- Publication number
- CN117641836B CN117641836B CN202311436449.8A CN202311436449A CN117641836B CN 117641836 B CN117641836 B CN 117641836B CN 202311436449 A CN202311436449 A CN 202311436449A CN 117641836 B CN117641836 B CN 117641836B
- Authority
- CN
- China
- Prior art keywords
- air
- heat
- heat exchange
- cavity
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20554—Forced ventilation of a gaseous coolant
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
本发明公开了一种功率柜，包括柜体、换热装置和散热风机，柜体顶部设有过风腔，过风腔的侧部设有主引风口，顶部设有排风口；换热装置设有两个位于过风腔内的换热部；两个换热部呈夹角设置，其沿第一方向上的一端彼此相交，另一端彼此远离形成开口；所述换热部设有待冷却部和若干过风道，各所述过风道适于沿水平方向过风；散热风机驱动风流自主引风口经过过风道排向排风口。本发明的功率柜使得上游的功率柜的热流不会干扰下游的功率柜，且占地面积小，功率柜的换热部不易积沙，换热效率高。
This invention discloses a power cabinet, including a cabinet body, a heat exchange device, and a cooling fan. The cabinet body has an air passage cavity at the top, a main air intake on the side of the air passage cavity, and an exhaust port at the top. The heat exchange device has two heat exchange sections located within the air passage cavity. The two heat exchange sections are arranged at an angle, with one end intersecting each other along a first direction, and the other ends forming an opening. Each heat exchange section has a cooling section and several air passages, each air passage being adapted for horizontal airflow. The cooling fan drives the airflow from the air intake through the air passages to the exhaust port. This power cabinet ensures that the heat flow from an upstream power cabinet does not interfere with the heat flow from a downstream power cabinet, has a small footprint, is less prone to sand accumulation in the heat exchange sections, and has high heat exchange efficiency.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a power cabinet.
Background
The power cabinets such as the photovoltaic inverter and the energy storage converter cabinet generally have higher heat dissipation requirements, the air inlet and the air outlet of the power cabinet are often arranged on the front side and the rear side of the power cabinet respectively, and in practical application, a plurality of power cabinets are often arranged at intervals along the front-rear direction, so that mutual interference exists in airflow tissues among the power cabinets, for example, hot air of an upstream power cabinet can enter a cold air inlet of a downstream power cabinet, and for example, the hot air outlet of two power cabinets is in disturbance to the airflow tissues caused by blowing. The above factors tend to cause "heat island" effects and increase the temperature rise of the device, which ultimately results in de-rating of the device. The prior art often increases the distance between power cabinets and changes the layout of the power cabinets. However, increasing the spacing of the power cabinets increases the footprint and even if the spacing of the power cabinets is increased, heat flow turbulence may still be affected.
Disclosure of Invention
The invention aims to overcome the defects or problems in the background art and provide the power cabinet, so that the heat flow of the upstream power cabinet does not interfere with the downstream power cabinet, the occupied area is small, the sand is not easy to accumulate in the heat exchange device of the power cabinet, and the heat exchange efficiency is high.
To achieve the above object, the present invention and its preferred embodiments adopt the following technical solutions but the embodiments are not limited to the following solutions:
The power cabinet comprises a cabinet body, a heat exchange device, two heat exchange parts, a heat exchange part and a heat dissipation fan, wherein the top of the cabinet body is provided with an air passing cavity, the side part of the air passing cavity is provided with a main air inlet along a first horizontal direction, the top of the air passing cavity is provided with an air outlet, the heat exchange device is provided with two heat exchange parts positioned in the air passing cavity, the two heat exchange parts are arranged in an included angle mode, one ends of the two heat exchange parts in the first direction intersect with each other, the other ends of the two heat exchange parts are far away from each other to form an opening, the heat exchange parts are provided with a part to be cooled and a plurality of air passing channels, each air passing channel is suitable for passing air along the horizontal direction, and the heat dissipation fan drives air to flow to be discharged to the air outlet from the main air inlet through the air passing channels.
As a preferable embodiment, the side part of the air passing cavity is further provided with a first air guiding opening and a second air guiding opening which are opposite to each other along a horizontal second direction perpendicular to the first direction, and the heat exchanging part is a heat exchanging plate extending along the vertical direction, and the heat exchanging plate is inclined relative to the first direction and the second direction.
As a preferable embodiment, the heat exchange plates are alternately provided with cooling liquid flow channels and air passing channels along the vertical direction, each cooling liquid flow channel forms the part to be cooled, one end of each heat exchange plate is intersected with the other and is close to the main air guiding opening, and the heat exchange device is further provided with a cooling liquid conveying member which is positioned between the two heat exchange plates and is used for conveying cooling liquid.
As a preferable embodiment, the projections of the first air guiding opening and the second air guiding opening along the second direction cover the projections of the heat exchange plates along the second direction, and the heat dissipation fan is arranged at the air outlet and the projections of the heat dissipation fan along the vertical direction on the horizontal plane are spaced from the two heat exchange plates along the first direction.
As a preferred embodiment, the coolant channels of the two heat exchanger plates are connected in parallel by a coolant conveying member.
As a preferred embodiment, further comprising a heat generating component; the cabinet body is also provided with a relatively airtight and independent protection cavity below the air passing cavity, the heat exchange device is also provided with a liquid cooling plate for radiating heat of the heating component, and a liquid inlet and a liquid outlet of the liquid cooling plate are communicated with the two heat exchange plates through a cooling liquid conveying piece.
The air heat exchanger is provided with a first air flow channel and a second air flow channel, the first air flow channel is communicated with the third air inlet and the air outlet, the second air flow channel is provided with a cold air port for conveying cold air to the protection cavity and a hot air port for recovering hot air from the protection cavity, and the first air flow channel and the second air flow channel are in heat exchange with each other to take away heat of the second air flow channel.
The electric assembly comprises a reactor extending in the vertical direction, a heat dissipation cavity is further formed in the bottom of the cabinet body, a first air inlet is formed in the first side wall of the upper end of the heat dissipation cavity, a first air outlet is formed in the second side wall of the lower end of the heat dissipation cavity, the first air outlet is far away from the third air inlet, a first air channel is formed by communicating the first air inlet and the first air outlet, and the reactor is arranged in the first air channel.
The electric reactor is characterized by further comprising a cover body, wherein the cabinet body is provided with a separation plate, the upper surface and the lower surface of the separation plate respectively form a cavity wall of a protection cavity and a cavity wall of a heat dissipation cavity, the cover body is covered outside the electric reactor and communicated with the first air inlet and the first air outlet to form the first air channel, and a heat insulation gap is reserved between the cover body and the separation plate.
The heat generating component comprises a high heat generating part and a low heat generating part, the liquid cooling plate is used for radiating heat for the high heat generating part, the air heat exchanger is used for radiating heat for the low heat generating part, the partition plate enables the heat radiating cavity to form a first area and a second area which are communicated with each other along the air inlet direction, the first area is higher than the second area, the reactor module is arranged in the first area, the partition plate also enables the protection cavity to form a third area and a fourth area which are communicated with each other along the air inlet direction, the third area and the fourth area are respectively located above the first area and the second area, and the high heat generating part is located above the fourth area.
As can be seen from the above description of the present invention and the preferred embodiments thereof, compared with the prior art, the technical solution of the present invention and the preferred embodiments thereof have the following beneficial effects due to the following technical means:
The applicant can be seen from continuous observation, experiments and researches that, in the prior art, the problem of heat island effect between power cabinets is caused because the air outlet of the upstream power cabinet faces the air inlet of the downstream power cabinet, the main air inlet is arranged at the side part of the air passing cavity, the air outlet is arranged at the top part of the air passing cavity, and the hot air density is small, so that hot air exhausted from the top part of the air passing cavity mainly flows upwards, but does not flow downwards, and the heat flow disturbance to the main air inlet of the downstream power cabinet is avoided. On the basis, when the heat exchange device is placed in the air passing cavity, two heat exchange parts are V-shaped and the openings are upward in the conventional heat exchange device, the fan is arranged above the area between the two heat exchange parts, the heat exchange parts are inclined relative to the vertical direction, the air channels in the heat exchange parts are inclined relative to the vertical direction, after the fan works, the movement direction of the air flow passing through the air channels changes, and the air flow of the two heat exchange parts blows between the two heat exchange parts, so that sand is easy to accumulate in the inner included angle and the outer included angle of the bottoms of the two heat exchange parts and the air channels in the heat exchange parts under the action of gravity and the air flow, the wind resistance is large after long-term operation, the heat exchange efficiency is greatly influenced, the problem of accumulating sand of the heat exchange parts is correspondingly improved on the basis that the air outlet is arranged at the top of the cabinet body, in particular, one ends of the two heat exchange parts are mutually intersected, the other ends of the two heat exchange parts are mutually separated along the vertical direction, and the other ends of the two heat exchange parts are mutually far away from each other to form the opening, and each air passing through the air channel is suitable for passing along the horizontal direction, the air flowing through the air channels, the movement direction is basically unchanged, sand is easy to accumulate in the air channels, and after the sand is easy to flow and the air flows directly flows through the two heat exchange parts to flow channels towards the two heat exchange parts, and the two heat exchange parts are cooled down. In addition, two heat exchange portions are the contained angle setting for heat exchange portion all has great overwind area and small, can know, this technical scheme, can not produce the heat flow disturbance to the main induced air mouth of low reaches power cabinet when a plurality of power cabinets are along first direction side by side, also avoided the easy sand accumulation's of heat exchange portion problem when top air-out, thereby improved heat transfer device and moved the problem that heat exchange efficiency descends for a long time.
In the related technical scheme and the preferred embodiment thereof, the arrangement of the first air guiding opening and the second air guiding opening is convenient for taking away the heat of the cooling liquid flow passages of the two heat exchange plates more quickly, thereby improving the heat exchange efficiency of the heat exchange plates. When a plurality of power cabinets are parallel-connected in the second direction, only the first air inlet and the second air inlet at the outermost side can be used for air inlet. The air passing cavity of the power cabinet in the middle is not provided with air inlets due to the limitation of wind pressure.
In the related technical scheme and the preferred embodiment thereof, the cooling liquid conveying part of the heat exchange device is placed in the area between the two heat exchange plates, so that the space between the two heat exchange plates is fully utilized, and the cooling liquid conveying part can be maintained only at the opening ends of the two heat exchange plates.
In the related technical scheme and the preferred embodiment thereof, the projections of the first air introduction port and the second air introduction port along the second direction cover the projections of the heat exchange plates along the second direction, so that the air inlet quantity of the heat exchange plates is further increased, the heat dissipation fan is arranged at the air outlet, and the projections of the heat dissipation fan along the vertical direction are spaced from the two heat exchange plates along the first direction, so that the air flow is ensured to completely flow through the air passage of the heat exchange plates.
In the related technical scheme and the preferred embodiment thereof, the cooling liquid channels of the two heat exchange plates are connected in parallel through the cooling liquid conveying piece, namely, the liquid inlet of each heat exchange plate is the hottest liquid just coming out of the liquid cooling plate (the temperature difference between the liquid inside the heat exchange plate and the external cold air is the largest, and the heat exchange effect is the best), and meanwhile, only half of the total flow of the system is arranged on each heat exchange plate, so that the flow resistance of the system is greatly reduced, the heat exchange efficiency of the heat exchange plates is increased, and the flow resistance of the system is also reduced.
In the related technical solution and the preferred embodiments thereof, the protection cavity is relatively independent and airtight, which means that the protection cavity has a higher protection level (waterproof and dustproof), and also means that the interior of the protection cavity does not structurally generate an encroachment relationship with other cavities (the wind passing cavity and the heat dissipating cavity), such as that the air duct of the heat dissipating cavity extends into the protection cavity. Therefore, the protection cavity is provided with enough space for the installation of the heating component, so that the heating component is not easily affected by the heat radiation of the electric component, and the layout which is most favorable for heat dissipation can be formed, thereby improving the heat dissipation efficiency of the heating component. The heating component in the protection cavity can be used for radiating heat at least partially through a liquid cooling mode, the liquid cooling mode is easier to control than an air cooling mode, the radiating efficiency is high, and a relatively airtight structure can be formed in the protection cavity, so that the protection performance of the protection cavity is improved.
In related technical scheme and preferred embodiment thereof, the heating component in the protection cavity mainly radiates heat through liquid cooling and air cooling, and has high radiating efficiency, and the protection performance of the protection cavity can be well improved because the air heat exchanger and the heat exchange device radiate heat through external circulation. Therefore, the liquid cooling and air cooling matched heat dissipation mode can maximally ensure the heat dissipation efficiency of the heating component in the protection cavity, the protection performance of the protection cavity is good, the parallel operation or the parallel operation along the horizontal direction of the power cabinets are convenient, and the distance between the power cabinets is also convenient to reduce. The arrangement of the air passing opening enables the hot air of the protection cavity to be discharged to the air outlet through the air passing opening, so that the influence of heat flow disturbance of the power cabinet at the upstream on the main air introducing opening of the power cabinet at the downstream is further avoided, wherein the air passing opening is far away from the main air introducing opening, and the interference of the hot air of the protection cavity on the heat exchange plates is avoided.
In related technical scheme and preferred embodiment, the liquid cooling unit has been placed to the cross wind intracavity, the risk that liquid cooling unit probably has the weeping, the protection chamber is located between wind chamber and the heat dissipation chamber, because the protection chamber is relatively independent and airtight for the protection chamber has separated wind chamber and heat dissipation chamber completely, therefore relatively inclosed protection chamber has improved self protectiveness on the one hand, has avoided the weeping in the wind chamber to leak into the protection intracavity, on the other hand still prevents as the compartment that the weeping from leaking into the heat dissipation chamber, thereby avoided electrical component impaired. As for the liquid leakage problem of the liquid cooling unit and the liquid cooling plate pipeline, the protection performance of the connecting pipe is improved, and the liquid leakage problem of the liquid cooling unit is not in the range discussed by the application, and is mainly aimed at the liquid leakage problem of the part of the liquid cooling unit in the air passing cavity. The reactor is arranged in the first air channel of the heat dissipation cavity, on the one hand, because the reactor is heavier, the reactor is arranged at the bottom of the cabinet body, the bearing property is better, on the other hand, the first air inlet is far away from the ground, the first air outlet is closer to the ground, thereby the air flow entering the first air channel is hot air when the ground temperature is high, the air flow entering the first air channel is cold air far away from the ground, the heat dissipation efficiency of the reactor is high, meanwhile, the movement track is basically parabolic when the hot air of the first air outlet is enabled to move upwards after the hot air of the first air outlet comes out, the effect of the hot air entering the third air inlet on the heat dissipation of the protection cavity is avoided, the influence on the air inlets of the adjacent power cabinets at the downstream is also avoided when the power cabinets are used side by side along the first horizontal direction, and the heat is concentrated because the reactor is arranged in the independent first air channel, the cold air flow entering the first air channel can completely pass through the reactor from top to bottom, the heat dissipation efficiency of the reactor is high, after the arrangement, the hot air of the whole power cabinet is easy to take away from the top and the first air outlet of the bottom of the power cabinet is unlikely to generate turbulent flow.
In the related technical scheme and the preferred embodiment thereof, the cover body and the partition plate are provided with heat insulation gaps, and the heat conduction efficiency between the cover body and the partition plate is reduced by the heat insulation gaps, so that heat of the reactor is prevented from being dissipated into the protection cavity in a radiation mode, and the heat dissipation efficiency of the whole cabinet body is improved.
In the related technical scheme and the preferred embodiment thereof, the high heating element is arranged in the fourth area, the reactor is arranged in the first area, and the high heating element is basically arranged in a diagonal line, so that two electric elements with large heating value are far away as far as possible, and the heat dissipation efficiency is further improved. The high heating element radiates heat in a liquid cooling mode, the liquid cooling radiating mode has high radiating efficiency, and the low heating element radiates heat in an air cooling mode, so that the radiating efficiency is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a power cabinet according to an embodiment of the invention;
FIG. 2 is a second schematic diagram of a power cabinet according to an embodiment of the present invention;
FIG. 3 is a top view of a power cabinet according to an embodiment of the invention with a top plate of the cabinet hidden;
FIG. 4 is a schematic view of a power cabinet according to an embodiment of the present invention after a top plate of the cabinet is hidden;
FIG. 5 is a schematic diagram of an air-to-liquid heat exchanger of a power cabinet according to an embodiment of the invention;
FIG. 6 is an internal schematic diagram of a power cabinet according to an embodiment of the invention;
fig. 7 is an internal schematic view of a hidden part of a power cabinet according to an embodiment of the invention.
The main reference numerals illustrate:
The cabinet 10, the air passing chamber 10A, the air outlet 101, the protection chamber 10B, the heat dissipation chamber 10C, the upper air outlet chamber 10D, the lower air outlet chamber 10F, the first air duct 01, the second air duct 02, the first side wall 11, the main air inlet 111, the first air inlet 112, the second air inlet 113, the second side wall 12, the first air outlet 121, the second air outlet 122, the third air inlet 123, the first abutting wall 13, the first air inlet 131, the third air outlet 132, the second abutting wall 14, the second air inlet 141, the fourth air outlet 142, the support plate 15, the air passing port 151, the partition plate 16, the air guiding surface 161, the inner partition plate 17, the air inlet 171, the cover 18, the fan module 19, the first fan 191, the second fan 192, the heat insulation gap 03, the heat exchange device 20, the air-liquid heat exchanger 21, the heat exchange fin 211, the liquid cooling pipe 2111, the cooling tooth fin 2112, the liquid cooling plate 22, the cooling liquid conveying member 23, the heat dissipation fan 30, the high heat generating member 40, the low heat generating member 50, the direct current electric member 51, the capacitor 52, the air cooling member 60, the electric reactor 80, the heat exchanger 80, the air blowing member 81, the electric reactor 80, and the air blowing device 80.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are preferred embodiments of the invention and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without creative efforts, are within the protection scope of the present invention.
In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.
In the claims, specification and drawings of the present invention, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the invention.
In the claims, specification and drawings of the present invention, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.
In the claims, specification and drawings of the present invention, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.
Referring to fig. 1-7, fig. 1-7 illustrate a power cabinet including a cabinet body 10, a heat exchange device 20, a heat dissipation blower 30, an air heat exchanger 60, a reactor 70, and an electrical connection 80.
Referring to fig. 1 to 4, the cabinet 10 is in a rectangular parallelepiped shape, the cabinet 10 is provided with a first side wall 11 and a second side wall 12 parallel and opposite to each other along a first direction, and the cabinet 10 is provided with a first abutting wall 13 and a second abutting wall 14 parallel and opposite to each other along a second direction perpendicular to the first direction. The first direction is the up-down direction in fig. 3, and the second direction is the left-right direction in fig. 3.
In this embodiment, the cabinet body 10 is provided with a support plate 15 and a partition plate 16, referring to fig. 6-7, the support plate 15 divides the cabinet body 10 into an upper area and a lower area, the upper area forms an air passing cavity 10A, the partition plate 16 divides the lower area into a middle area and a bottom area, the middle area forms a protection cavity 10B, the bottom area forms a heat dissipation cavity 10C, i.e. the top of the cabinet body 10 is provided with the air passing cavity 10A, the bottom is provided with the heat dissipation cavity 10C, the cabinet body 10 is provided with the protection cavity 10B between the air passing cavity 10A and the heat dissipation cavity 10C, and the protection cavity 10B is relatively airtight. Wherein, backup pad 15 extends along the horizontal direction, and division board 16 wholly takes the Z shape, and division board 16 is formed by two horizontal sections and a vertical section, and vertical section connects two horizontal sections and forms the Z shape division board.
In this embodiment, since the partition plate 16 is projected in the second direction in a Z shape, the partition plate 16 makes the heat dissipation chamber 10C form a first region (left side in fig. 7) and a second region (right side in fig. 7) which are communicated in the air intake direction, the first region is higher than the second region, and the partition plate 16 also makes the protection chamber 10B form a third region (left side in fig. 7) and a fourth region (right side in fig. 7) which are communicated in the air intake direction, respectively above the first region and the second region. It should be understood that the supporting plate 15 and the partition plate 16 should be in sealing connection with the side plates of the cabinet body 10, so that the protection cavity 10B is relatively independent and airtight, which means that the protection cavity 10B has a higher protection level (waterproof and dustproof), and that the interior of the protection cavity 10B does not structurally generate an encroaching relationship with other cavities (the air passing cavity and the heat dissipating cavity), such as the air duct of the heat dissipating cavity 10C extending into the protection cavity. Therefore, the protection cavity 10B has enough space for mounting the heat generating component, so that the heat generating component is not easily affected by the heat radiation of the electric component, and the layout which is most favorable for heat dissipation can be formed, thereby improving the heat dissipation efficiency of the heat generating component.
Referring to fig. 1-2, the air passing cavity 10A is provided with a main air inlet 111 along a first horizontal direction on a first side wall 11, an air outlet 101 is arranged at the top, the air outlet 101 is close to a second side wall 12, and a first air inlet 131 and a second air inlet 141 are respectively arranged on a first abutting wall 13 and a second abutting wall 14 of the air passing cavity 10A, namely, the side part of the air passing cavity 10A is also provided with a first air inlet 131 and a second air inlet 141 which are opposite to each other along a second horizontal direction.
Referring to fig. 2, the protection cavity 10B is provided with a third air inlet 123 on the second side wall 12. Referring to fig. 6-7, the cabinet 10 is further provided with an air passing port 151 communicating the protection cavity 10B and the air passing cavity 10A, the air passing port 151 is far away from the main air introducing port 111 and is close to the second side wall 12, and in this embodiment, the air passing port 151 is opened on the support plate 15.
Referring to fig. 7, the heat dissipation cavity 10C is provided with a first air inlet 112 and a second air inlet 113 on a first side wall 11, and a first air outlet 121 and a second air outlet 122 on a second side wall 12, wherein the first air inlet 112 and the first air outlet 121 are communicated to form a first air channel 01, and the second air inlet 113 and the second air outlet 122 are communicated to form a second air channel 02.
Specifically, referring to fig. 6-7, an inner partition 17 is disposed between the first air outlet 121 and the second air outlet 122 in the heat dissipation chamber 10C to divide the heat dissipation chamber 10C into an upper air outlet chamber 10D corresponding to the first air inlet 112, the second air inlet 113 and the second air outlet 122 and a lower air outlet chamber 10F corresponding to the first air outlet 121, an air outlet 171 communicating the first air inlet 112 and the first air outlet 121 is formed on the inner partition 17, a part of the first air channel 01 is formed between the first air inlet 112 and the air outlet 171, another part of the first air channel 01 is formed between the air outlet 171 and the first air outlet 121, and a part of the upper air outlet chamber 10D outside the first air channel 01 forms the second air channel 02. Thus, the first air channel 01 is partially located in the second air channel 02. Referring to fig. 1-2, the lower outlet chamber 10F further forms third and fourth outlets 132 and 142 on the first and second abutment walls 13 and 14 in communication with the air outlet 171.
In this embodiment, the cabinet 10 is provided with a cover 18, one end of the cover 18 is connected to the first air inlet 112, and the other end is connected to the air outlet 171, so as to form a part of the first air duct 01. The cover 18 is L-shaped in projection in the second direction and is provided with a horizontal section and a vertical section.
In the preferred embodiment, the cover 18 is located in a first area of the heat dissipation cavity 10C, an air passing gap is formed between the cover 18 and the first abutting wall 13 and the second abutting wall 14, an air guiding surface 161 facing the cover 18 and parallel to the first side wall 11 is arranged on the inner surface of the heat dissipation cavity 10C facing away from the second side wall 12, and the air passing gap is formed between the air guiding surface 161 and the cover 18 and is spaced from the inner partition 17 in the vertical direction. A heat insulation gap 03 is formed between the top surface of the cover 18 and the wall of the heat dissipation chamber 10C, and the air passing gap between the cover 18 and the air guiding surface 161 can also realize a heat insulation function and is also the heat insulation gap 03. In this embodiment, the surface of the vertical section of the partition plate 16 facing the first side wall 11 forms the air guiding surface 161.
Still referring to fig. 7, the first air inlet 112 and the first air outlet 121 are respectively located at the upper end and the lower end of the heat dissipation cavity 10C, the second air inlet 113 and the second air outlet 122 are both located between the first air inlet 112 and the first air outlet 121, and the second air inlet 113 is higher than the second air outlet 122.
Specifically, the cabinet 10 includes a fan module 19 corresponding to the heat dissipation cavity 10C in the present embodiment, where the fan module 19 is mounted on the first side wall 11 and is used for supplying air to the first air inlet 112 and the second air inlet 113, and the air supply amount to the first air inlet 112 is greater than the air supply amount to the second air inlet 113. In this embodiment, the fan module 19 includes a first fan 191 opposite to the first air inlet 112 and a second fan 192 opposite to the second air inlet 113, where the first fan 191 and the second fan 192 are both air supply fans, and the power of the first fan 191 is greater than that of the second fan 192. The fan module 19 is installed on the first side wall 11, and compared with the fan module installed on the second side wall 12, the temperature of the fan module 19 is not very high, so that the fan is not easy to damage.
The heat exchange device 20 is at least partially disposed in the air passing cavity 10A, specifically, referring to fig. 6, the heat exchange device 20 includes an air-liquid heat exchanger 21 disposed in the air passing cavity 10A and a liquid cooling plate 22 disposed in the protection cavity 10B and radiating heat from the high heat generating component 40, and the air-liquid heat exchanger 21 is communicated with a liquid inlet and a liquid outlet of the liquid cooling plate 22, so as to convey cold liquid to the liquid cooling plate 22 and recover hot liquid from the liquid cooling plate, thereby realizing liquid cooling circulation. Referring to fig. 4-5, the air-liquid heat exchanger 21 is provided with two heat exchange portions positioned in the air passing cavity 10A, the two heat exchange portions are arranged at an included angle, one ends of the two heat exchange portions in the first direction are intersected with each other, the other ends of the two heat exchange portions are far away from each other to form an opening, the heat exchange portions are provided with a portion to be cooled and a plurality of air passing channels, each air passing channel is suitable for passing air in the horizontal direction, specifically, the heat exchange portions are heat exchange fins 211 extending in the vertical direction, the heat exchange fins 211 are inclined relative to the first direction and the second direction, the two heat exchange fins 211 are combined into a V-shape, the V-shaped opening faces the second side wall 12, one end of each heat exchange fin 211 intersected with each other is close to the main air introducing opening 111, the heat exchange fins 211 extend in the vertical direction, cooling liquid flow channels and are alternately distributed in the vertical direction, each cooling liquid flow channel forms the portion to be cooled, the cooling liquid flow channels extend in the length direction of the heat exchange fins 211, the air passing channels are suitable for passing air in the horizontal direction, in fig. 5, the cooling liquid flow channels are formed by liquid cooling tubes 1 extending in the length direction, zigzag heat dissipation fins 2112 are arranged in the air passing channels so as to increase efficiency, and still referring to fig. 4, the projection of the heat dissipation fins of the first guide fins and the second guide fins 141 extend in the second direction are projected along the direction, and cover the direction, and the cooling fin is extended. It should be understood that, in addition to the air-liquid heat exchanger 21 and the liquid cooling plate 22, the heat exchange device 20 further includes other components, such as a cooling liquid conveying member 23, where the cooling liquid conveying member 23 may be a water path member, such as a pump, a water tank, and a pipeline, and this part belongs to the prior art, and this embodiment will not be described herein. Because the two heat exchange plates 211 intersect with each other at one end thereof and are close to the main air inlet 111, when the cooling liquid conveying member 23 of the heat exchange device 20 is placed in the area between the two heat exchange plates 211, the space between the two heat exchange plates 211 is fully utilized, the cooling liquid conveying member 23 can be maintained only at the open ends of the two heat exchange plates 211, and the heat dissipation efficiency of the heat exchange plates 211 is ensured because the air flow firstly dissipates the heat of the heat exchange plates 211 and then dissipates the heat of the cooling liquid conveying member 23. The heat exchanger plates 211 are inclined with respect to both the first direction and the second direction, ensuring that each heat exchanger plate 211 has a larger wind passing area and a smaller volume.
In this embodiment, the cooling liquid channels of the two heat exchange plates 211 are connected in parallel through the cooling liquid conveying member 23, that is, the liquid inlet of each heat exchange plate 211 is the hottest liquid just coming out from the liquid cooling plate 22 (the temperature difference between the liquid inside the heat exchange plate 211 and the external cold air is the largest, and the heat exchange effect is the best), meanwhile, only half of the total flow of the system is on each heat exchange plate 211, so that the flow resistance of the system is greatly reduced, the heat exchange efficiency of the heat exchange plate 211 is increased, and the flow resistance of the system is also reduced.
The heat dissipation fan 30 is disposed at the air outlet 101 to drive the air flow to be discharged from the main air guiding opening 111 to the air outlet 101 through the air passage. The projection of the heat dissipation fan 30 along the vertical direction is spaced from the two heat exchange plates 211 along the first direction, so that the wind flow is ensured to completely flow through the air passage of the heat exchange plates 211. It should be understood that, in this embodiment, the heat dissipation fan 30 is an exhaust fan, and should have a higher protection level.
In this embodiment, the main air intake 111 is disposed at the side of the air passing cavity 10A, the air outlet 101 is disposed at the top of the air passing cavity 10A, and the hot air density is small, so that the hot air exhausted from the top of the air passing cavity 10A mainly flows upward, but does not flow downward, thereby avoiding heat flow disturbance to the main air intake 111 of the downstream power cabinet. On the basis, when the heat exchange device 20 is placed in the air cavity 10A, two heat exchange plates of the conventional heat exchange device 20 are inclined in the vertical direction, a fan is placed above the area between the two heat exchange plates, in the working process of the fan, the moving direction of the air flow passing through the heat exchange plates changes, because liquid cooling pipes in the heat exchange plates extend along the length direction of the liquid cooling pipes, when the heat exchange plates incline relative to the vertical direction, air channels of the heat exchange plates are inclined relative to the vertical direction, after the fan works, the air flow of the air flow passing through the air channels changes, the air flow of the two heat exchange parts blows between the two heat exchange plates, so sand is easy to accumulate in the inner included angle and the outer included angle of the bottoms of the two heat exchange parts and the air channels in the heat exchange parts under the action of gravity and the air flow, the wind resistance is large after long-term running, the heat exchange efficiency is greatly influenced. That is, in this embodiment, the heat flow is not generated to the main air inlet 111 of the downstream power cabinet when the plurality of power cabinets are arranged side by side along the first direction, and the problem that the heat exchange fins 211 are easy to accumulate sand when the top air is exhausted is avoided, so that the problem that the heat exchange efficiency is reduced after the heat exchange device is operated for a long time is improved.
In this embodiment, the first air guiding port 131 and the second air guiding port 141 are configured to take away the heat of the cooling fluid channels of the two heat exchange fins 211 more quickly, so as to improve the heat exchange efficiency of the heat exchange fins 211. The side walls of the cabinet body 10 except the first side wall 11 and the second side wall 12, namely the first abutting wall 13 and the second abutting wall 14, do not need to enter and exit air or maintenance, so that the side walls and other cabinet bodies 10 can be used for cabinet combination without influencing the work, heat dissipation and maintenance of the power cabinet, and when a plurality of power cabinets are combined in the second direction, only the first air inlet 131 and the second air inlet 141 at the outermost side can enter air. The air passing cavity 10A of the power cabinet located in the middle does not enter the air from the first air introduction port 131 and the second air introduction port 141 due to the limitation of the air pressure.
Referring still to fig. 6-7, the heating assembly is disposed in the protection cavity 10B and includes a high heating element 40 and a low heating element 50, the high heating element 40 is cooled by the liquid cooling plate 22, the high heating element 40 is an inversion module in this embodiment, so that the water pipe of the air-liquid heat exchanger 21 also passes through the support plate 15 to communicate with the liquid cooling plate 22, the low heating element 50 includes a direct current electric element 51, an alternating current electric element 53 and a capacitor module 52, the direct current electric element 51 is close to the first side wall 11, the alternating current electric element 53 is close to the second side wall 12 and is disposed at the bottom of the protection cavity 10B and is located below the air heat exchanger 60, and the capacitor module 52 is located between the direct current electric element 51 and the alternating current electric element 53 and is located below the high heating element 40. The lower surface of the capacitor module 52 is provided with a heat radiating surface 521 parallel to the horizontal direction.
Wherein the high heat generating element 40 is located above the fourth zone. The dc electrical component 51 is placed in the third region, the ac electrical component 53 is placed in the fourth region, and the capacitor module 52 spans the third region and the fourth region and is located between the ac electrical component 53 and the high heat generating component 40 in the vertical direction. The electrical connection relationship in the protection cavity 10B is that the direct current electrical component 51 is connected with the capacitor module 52, the capacitor module 52 is connected with the high heat generating component 40, and the high heat generating component 40 is connected with the alternating current electrical component 53.
In this embodiment, the air-liquid heat exchanger 21 of the heat exchange device 20 is disposed in the air passing cavity 10A at the top, so that the air inlet of the heat exchange device 20 is also located at the top, and the air inlet is far away from the ground, so that the air inlet has a low air inlet temperature, so that the heat dissipation efficiency of the air-liquid heat exchanger 21 is high, and the high heat dissipation efficiency of the heating element 40 is ensured, and because the air-liquid heat exchanger 21 has no water inlet concern, the air outlet can be opened at the top of the cabinet body 10, so that heat flow disturbance is not easy to occur to the downstream power cabinets when the power cabinets are used in parallel, and because the air-liquid heat exchanger 21 is disposed at the top, the side of the cabinet body 10 is unoccupied, thereby facilitating parallel or parallel use of the power cabinets in the horizontal direction.
The air heat exchanger 60 is arranged on the inner surface of the second side wall 12, the air heat exchanger 60 is provided with a cold air port 61 for conveying cold air to the protection cavity 10B and a hot air port 62 for recovering hot air from the protection cavity 10B, the hot air port 62 and the cold air port 61 face the first side wall 11, the hot air port 62 is higher than the cold air port 61, in practical application, an air draft fan is further arranged at the hot air port 62, the axis of the air draft fan is parallel to the first direction, the air heat exchanger 60 is provided with a first air flow passage and a second air flow passage, the first air flow passage is communicated with a third air inlet 123 and an air passing port 151, the second air flow passage is provided with a cold air port 61 and a hot air port 62, the heat dissipation fan 30 also drives air to flow from the third air inlet 123 to the air outlet 101 through the air passing port 151, and the first air flow passage and the second air flow passage exchange heat with each other to take away heat of the second air flow passage. The hot air port 62 is higher than the cold air port 61, so that the cold air of the air heat exchanger 60 can gradually take away the heat of the heating component in the protection cavity 10B in the process of upward flowing in the protection cavity 10B, and the air circulation is good. The air heat exchanger 60 is attached to the inner surface of the second side wall 12, which is more beautiful than the air heat exchanger attached to the outer surface of the second side wall 12, and if the air heat exchanger 60 is attached to the outer surface of the second side wall 12, the hot air in the first air flow passage easily flows into the main air intake 111 of the downstream cabinet 10.
In this embodiment, the air heat exchanger 60 and the air-liquid heat exchanger 21 share the heat dissipation fan 30, so as to share the air outlet 101, so that the hot air generated by the protection cavity 10B is exhausted from the air outlet 101 at the top of the cabinet body 10, and when a plurality of power cabinets are used side by side along the first direction, the hot air of the air outlet 101 of the upstream power cabinet will not affect the main air inlet 111 of the downstream power cabinet.
The high heat generating element 40 is close to the hot air port 62 of the air heat exchanger 60, so that the cold air flowing out of the cold air port 61 of the air heat exchanger 60 can take away the heat of the low heat generating element 50 in the protection cavity 10B, and then take away the heat of the high heat generating element 40, thereby ensuring the heat dissipation efficiency of the low heat generating element 50. The high heat generating component 40 is lower than the hot air port 62, so that the resistance is small when hot air flows back, and because the density of hot air in the air flow is smaller than that of air, cold air is downward when the hot air passes through the high heat generating component 40 during the back flow, and the hot air is upward, so that the air heat exchanger 60 can radiate the heat of the low heat generating component 50 and simultaneously radiate the heat of the high heat generating component 40.
The heating value of the capacitor module 52 in the low heating element 50 is the largest, the capacitor module 52 is located between the direct current electric element 51 and the alternating current electric element 53 and below the high heating element 40, wiring is facilitated, cold air of the air heat exchanger 60 flows through the alternating current electric element 53, the capacitor module 52 and the direct current electric element 51 and then flows through the high heating element 40 to be recovered to the hot air port 62, the temperature of the cold air is still lower after the cold air passes through the alternating current electric element 53 due to the small heating value of the alternating current electric element 53, so that heat of the capacitor module 52 can be well taken away, and the direct current electric element 51 can radiate outwards through the first side wall 11 due to the fact that the heat of the direct current electric element 51 is close to the first side wall 11, and therefore the heat dissipation efficiency of the low heating element 50 is high.
In this embodiment, the lower surface of the capacitor module 52 is provided with the heat dissipation surface 521 parallel to the horizontal direction, which is not only beneficial to the electrical coupling between the upper surface of the capacitor module 52 and the high heat generating component 40, but also makes the cold air better dissipate the heat of the capacitor module 52. An air passing gap is formed between the liquid cooling plate 22 and the upper surface of the capacitor module 52, and the air flow speed of the air passing gap is the fastest, so that cold air can take away heat of the capacitor module 52 and the high-heat-generating component 40 at the same time. It can be seen that the capacitor module 52 is disposed substantially horizontally, so that the wind flow can flow around the entire capacitor module 52, the heat dissipation efficiency of the capacitor module 52 is high, and the capacitor module 52 can guide the wind flow to the dc electric component 51 far away from the cold air inlet 61 of the air heat exchanger 60, thereby improving the heat dissipation efficiency of the dc electric component 51.
In this embodiment, the electrical components in the protection cavity 10B mainly dissipate heat through liquid cooling and air cooling, wherein the high heat generating component 40 dissipates heat through liquid cooling, the liquid cooling dissipates heat efficiently, the low heat generating component 50 dissipates heat through air cooling, and the protection performance of the protection cavity 10B can be improved well due to the fact that the air heat exchanger 60 and the air-liquid heat exchanger 21 dissipate heat through external circulation, and the high heat generating component 40 is close to the hot air port 62 of the air heat exchanger 60, so that the cold air flowing out from the cold air port 61 of the air heat exchanger 60 can take away the heat of the low heat generating component 50 in the protection cavity 10B first, and then take away the heat of the high heat generating component 40, thereby ensuring the heat dissipation efficiency of the low heat generating component 50. The heat dissipation efficiency of the heating component in the protection cavity 10B can be maximally ensured by the liquid cooling and air cooling matched heat dissipation mode, and the protection performance of the protection cavity 10B is good.
Referring to fig. 7, the electrical component includes a reactor 70 and an electrical connector 80, the reactor 70 extends in a vertical direction and is disposed in the first air duct 01, wherein the reactor 70 is disposed in the upper air outlet chamber 10D and is disposed mainly in a vertical section of the housing 18, an air-passing gap is formed between the reactor 70 and the vertical section of the housing 18, and the "air-passing gap" is understood to be used only for air-passing and other heating elements cannot be disposed in the air-passing gap, and the horizontal section of the housing 18 is used only for air-passing. That is, the reactor 70 is placed in the first region. The reactor 70 is disposed in the first air duct 01 of the heat dissipation cavity 10C, on one hand, because the reactor 70 is heavier, the load-bearing performance of the bottom of the cabinet 10 is better, and on the other hand, the hot air discharged from the first air outlet 121 by the first air duct 01 is kept away from the third air inlet 123 as far as possible, and the hot air movement track of the first air outlet 121 is parabolic, so that the cold air turbulence of the hot air generated by the reactor 70 on the third air inlet 123 is avoided. The reactor 70 is located in the upper outlet chamber 10D such that the reactor 70 is spaced from the ground by the lower outlet chamber 10F, thereby preventing the reactor 70 from being affected by the heat radiation from the ground.
The air passing gap is formed between the cover 18 and the first abutting wall 13 and the second abutting wall 14, so that the flow speed of the cold air flowing through the second air inlet 113 is increased, the cold air flows collide with the air guide surface 161 after flowing to the air guide surface 161, the flow speed is further increased, the air flowing colliding with the air guide surface 161 flows downwards along the outer part of the cover 18, heat radiated to the cover 18 by the reactor 70 can be taken away, the heat radiation efficiency of the reactor 70 is further improved, and the air flowing not colliding with the air guide surface 161 continues to flow to the second air outlet 122 due to the fact that the air guide surface 161 and the inner partition 17 are vertically spaced.
A heat insulation gap 03 is reserved between the top surface of the cover 18 and the cavity wall of the heat dissipation cavity 10C, and the heat insulation gap 03 is matched with an air passing gap between the cover 18 and the air guide surface 161, so that the heat conduction efficiency between the cover 18 and the partition plate 16 is reduced, heat of the reactor 70 is prevented from being dissipated into the protection cavity 10B in a radiation mode, and the influence on electric components in the protection cavity 10B is further avoided. The heat radiation efficiency of the whole cabinet 10 is improved, so that the heat of the reactor 70 is not easily transferred through the heat radiation phase.
The electrical connector 80 is at least partially located within the second air duct 02. The electrical connector 80 includes a fuse 81, a first connector 82 and a second connector 83, the fuse 81 is used for electrically coupling with the dc electrical component 51, the first connector 82 is a dc electrical connector, and the second connector 83 is an ac electrical connector connected with the ac electrical component 53. Since the heat generation amount of the fuse 81 is larger than the first connector 82 and the second connector 83, the temperature resistance of the fuse 81 is lower than the first connector 82 and the second connector 83, the fuse 81, the first connector 82 being located on one side of the reactor 70 in the second direction close to the first side wall 11, and the second connector 83 being located on the other side of the reactor 70 in the second direction close to the second side wall 12, the wiring operation of the first connector 82 and the direct current electric component 51 and the wiring operation of the second connector 83 and the alternating current electric component 53 and the fuse 81, the first connector 82 and the second connector 83 are facilitated. The fuse 81 is close to the second air inlet 113, and the first connector 82 is located below the fuse 81. The first connector 82 and the second connector 83 penetrate the inner partition 17 and extend into the lower outlet chamber 10F to improve heat dissipation efficiency. Correspondingly, a via hole for extending the dc electrical component 51 may be formed at the bottom end of the first side wall 11, and a via hole for extending the ac electrical component 53 may be formed at the bottom end of the second side wall 12.
In this embodiment, the reactor 70 is disposed in the first air duct 01, the electric connector 80 is at least partially disposed in the second air duct 02, since the first air inlet 112 and the first air outlet 121 of the first air duct 01 are respectively disposed at the upper end and the lower end of the heat dissipation cavity 10C, the second air inlet 113 and the second air outlet 122 are both disposed between the first air inlet 112 and the first air outlet 121, and the second air inlet 113 is higher than the second air outlet 122, and therefore, compared with the second air inlet 113, the first air inlet 112 is farther away from the ground, the air inlet temperature of the first air inlet 112 is lower than the temperature of the second air inlet 113, so that cooler air flow can dissipate heat for the reactor 70, and the heat productivity of the reactor 70 is greater than that of the electric connector 80, and therefore, the temperature of the first air outlet 121 is higher than the temperature of the second air outlet 122, and since the first air outlet 121 is disposed at the lower end of the heat dissipation cavity 10C, when a plurality of power cabinets are used side by side in a first direction, the movement track of the hot air flowing upward is substantially parabolic, and the movement track of the first air outlet 121 is unlikely to affect the first air inlet 113 and the second air inlet 113; meanwhile, the reactor 70 is arranged in the independent first air duct 01, the air flow of the first air duct 01 is larger than that of the second air duct 02, so that the heat of the reactor 70 is concentrated and can be taken away quickly, the heat radiation efficiency is high, the heat radiation of the electric connector 80 is smaller, and therefore the heat radiation efficiency of the electric connector 80 is also higher, wherein the electric connector 80 is at least partially positioned in the second air duct 02, the electric connector 80 can radiate heat through the second air duct 02, the heat radiation efficiency is high, and the second air duct 02 can also take away the heat of the first air duct 01 in the heat radiation process due to the lower heat productivity of the electric connector 80, so that the heat radiation efficiency of the reactor 70 is further improved, the reactor 70 and the electric connection 80 are located in the independent heat dissipation chamber 10C, and the hot air flowing through the reactor 70 and the electric connection 80 is directly discharged without interfering with other electric components. It can be seen that in this embodiment, the power cabinet is convenient for cabinet combining, the reactor 70 and the electric connector 80 are separately arranged in the first air duct 01 and the second air duct 02, the first air inlet 112 and the first air outlet 121 are arranged at the upper end and the lower end of the heat dissipation cavity 10C, so that the temperature of cold air of the reactor 70 is low, the heat dissipation efficiency is high, meanwhile, hot air of the reactor 70, namely, hot air of the first air outlet 121, is close to the ground as much as possible, thereby avoiding influencing the downstream power cabinet, and the heat dissipation efficiency of the reactor 70 is greatly improved by matching with the independent first air duct 01 of the reactor 70, and the electric connector 80 with less heat generation is arranged in the second air duct 02 with small air volume, namely, the heat dissipation requirement of the electric connector 80 is met, and the heat dissipation can be assisted for the reactor 70.
In this embodiment, the lower air outlet chamber 10F further forms the third air outlet 132 and the fourth air outlet 142 that are communicated with the air outlet 171 of the air outlet 151 on the first abutting wall 13 and the second abutting wall 14, so that the hot air flowing through the reactor 70 can flow out through the third air outlet 132 and the fourth air outlet 142 in addition to the first air outlet 121, thereby reducing the amount of hot air in the first air outlet 121, and being difficult to interfere the first air inlet 112 and the second air inlet 113 of the downstream power cabinet, and it should be understood that the first abutting wall 13 and the second abutting wall 14 are both suitable for being used when combining other power cabinets, and when combining a plurality of power cabinets along the second direction, only the third air outlet 132 and the fourth air outlet 142 located at the outermost side will air out, and the third air outlet 132 and the fourth air outlet 142 of the power cabinet located at the middle will not air out due to the larger wind pressure of the adjacent power cabinet.
After the arrangement, the hot air of the whole power cabinet is discharged from the air outlet 101 at the top and the first air outlet 121 at the bottom, so that turbulence is not easy to be generated on the air inlet of the downstream power cabinet. In this embodiment, the high heat generating element 40 is disposed in the fourth region, the reactor 70 is disposed in the first region, and the reactor 70 is disposed substantially diagonally, so that two electrical elements with large heat generation are disposed far away from each other as much as possible, further improving the heat dissipation efficiency, and the dc electrical element 51 is disposed in the third region, the ac electrical element 53 is disposed in the fourth region, and the capacitor module 52 spans the third region and the fourth region, thereby facilitating wiring. The liquid cooling unit is placed in the air passing cavity 10A, the risk of liquid leakage possibly exists in the liquid cooling unit, the protection cavity 10B is arranged between the air passing cavity 10A and the heat dissipation cavity 10C, and the protection cavity 10B is relatively independent and airtight, so that the protection cavity 10B completely separates the air passing cavity 10A and the heat dissipation cavity 10C, on one hand, the protection performance of the liquid cooling unit is improved, the liquid leakage in the air passing cavity 10A is prevented from leaking into the protection cavity 10B, on the other hand, the liquid leakage is prevented from leaking into the heat dissipation cavity 10C as a separation cavity, and the damage of an electric component is avoided. As for the leakage problem of the liquid cooling unit and the liquid cooling plate 22 pipeline, the protection of the connecting pipe can be improved, and the leakage problem of the liquid cooling unit discussed in the application is mainly aimed at the leakage problem of the part of the liquid cooling unit in the air passing cavity 10A.
The foregoing description of the embodiments and description is presented to illustrate the scope of the invention, but is not to be construed as limiting the scope of the invention. Modifications, equivalents, and other improvements to the embodiments of the invention or portions of the features disclosed herein, as may occur to persons skilled in the art upon use of the invention or the teachings of the embodiments, are intended to be included within the scope of the invention, as may be desired by persons skilled in the art from a logical analysis, reasoning, or limited testing, in combination with the common general knowledge and/or knowledge of the prior art.
Claims (10)
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| CN117560873B (en) * | 2023-10-31 | 2026-01-27 | 厦门科华数能科技有限公司 | Electrical cabinet |
| CN118263779B (en) * | 2024-03-27 | 2026-02-17 | 厦门科华数能科技有限公司 | Electrical cabinet with liquid leakage preventing structure and water-electricity separation function |
| CN118748886B (en) * | 2024-06-28 | 2025-11-11 | 厦门科华数能科技有限公司 | Electrical equipment and heat dissipation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107171570A (en) * | 2017-06-05 | 2017-09-15 | 阳光电源股份有限公司 | A kind of inverter power cabinet |
| CN112466624A (en) * | 2020-11-17 | 2021-03-09 | 河北华威电气设备科技有限公司 | Cooling mechanism for dry-type transformer and cooling working method |
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| CN205029550U (en) * | 2015-10-23 | 2016-02-10 | 北京天诚同创电气有限公司 | Converter and wind generating set |
| CN209046957U (en) * | 2018-08-22 | 2019-06-28 | 北京金风科创风电设备有限公司 | Power cabinet, wind electric converter and the wind power generating set of current transformer |
| CN114060932A (en) * | 2020-07-30 | 2022-02-18 | 青岛海尔空调器有限总公司 | Cabinet type air conditioner indoor unit |
| CN114927972A (en) * | 2022-04-29 | 2022-08-19 | 厦门科华数能科技有限公司 | Cabinet and electrical cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171570A (en) * | 2017-06-05 | 2017-09-15 | 阳光电源股份有限公司 | A kind of inverter power cabinet |
| CN112466624A (en) * | 2020-11-17 | 2021-03-09 | 河北华威电气设备科技有限公司 | Cooling mechanism for dry-type transformer and cooling working method |
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