CN112701876B - Converter power module and water-cooling radiator thereof - Google Patents

Converter power module and water-cooling radiator thereof Download PDF

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Publication number
CN112701876B
CN112701876B CN201911007435.8A CN201911007435A CN112701876B CN 112701876 B CN112701876 B CN 112701876B CN 201911007435 A CN201911007435 A CN 201911007435A CN 112701876 B CN112701876 B CN 112701876B
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China
Prior art keywords
water
groove
radiator
section
joint
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CN112701876A (en
Inventor
胡四全
刘刚
杜玉格
肖晋
张承
姚志国
屈春雷
宋全刚
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State Grid Corp of China SGCC
Xuji Group Co Ltd
XJ Electric Co Ltd
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State Grid Corp of China SGCC
Xuji Group Co Ltd
XJ Electric Co Ltd
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Priority to CN201911007435.8A priority Critical patent/CN112701876B/en
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

The invention relates to a converter power module and a water-cooling radiator thereof. The water-cooled radiator for the converter power module comprises a cooling liquid pipeline interface arranged at the top, wherein a groove is formed in the top of the water-cooled radiator, the cooling liquid pipeline interface is arranged at the bottom of the groove, a water guide channel is formed in the top of the water-cooled radiator, one end of the water guide channel is communicated with the groove, and the other end of the water guide channel extends to the side face of the water-cooled radiator; the side surface of the water-cooled radiator is provided with a water flowing groove communicated with the water guide channel, and the water flowing groove extends to the bottom of the water-cooled radiator. The water seepage at the joint of the cooling liquid pipeline interface and the water-cooled radiator is collected by the groove at the top of the water-cooled radiator, and the water seepage in the groove is guided to the lower part of the electric appliance element by the water guide channel and the water flowing groove, so that the influence on the operation of the electric appliance element caused by the fact that the water seepage flows along the outline of the water-cooled radiator and possibly contacts the electric appliance element is avoided, and the reliable operation of the converter power module is ensured.

Description

Converter power module and water-cooling radiator thereof
Technical Field
The invention relates to a converter power module and a water-cooling radiator thereof.
Background
The converter power module is a main component of the whole flexible direct-current distribution network system, and plays a key role in functionally connecting an alternating-current system and a direct-current system and realizing mutual conversion of alternating-current energy and direct-current energy, and the reliable operation of the converter power module directly influences the reliability of energy transmission of the whole system.
In the prior art, heat dissipation of a converter power module is usually realized by adopting a water cooling mode, for example, chinese patent with publication number CN106921300B and publication date of 2019, 02, 01 discloses a bridge arm damping module and a converter valve with the same, wherein the water cooling radiator in the bridge arm damping module is a vertically arranged plate-shaped radiator, the top of the water cooling radiator is provided with a water outlet and a water inlet, and the water outlet and the water inlet are respectively connected with a water supply pipeline and a water return pipeline through water pipe joints, so as to realize flow of cooling water in the water cooling radiator. The water-cooled radiator is covered with a top cover plate, the top cover plate is provided with a joint through hole through which a water supply pipe joint penetrates and extends, a sealing ring is arranged at the joint through hole in the gap between the top cover plate and the water-cooled radiator, when water seepage occurs at the joint of the water pipe joint and the plate-shaped radiator, the seepage water can seep out from the gap between the joint through hole in the top surface of the top cover plate and the water pipe joint due to the sealing effect of the sealing ring, an insulating plate is attached to the outer side surface of the radiator, grooves are formed in the peripheries of the insulating plate, the grooves and the corresponding surface of the radiator form a water flowing groove, the top of the insulating plate is lower than the top of the water-cooled radiator, and the seepage water on the upper surface of the top cover plate flows to the bottom of the water-cooled radiator through the water flowing groove to prevent the seepage water from entering the space below the top cover plate to influence electric parts in the bridge arm damping module.
However, the insulating plate is not attached to the side face of a part of the converter power module, at the moment, the launder in the bridge arm damping module does not form a foundation, and seepage water seeps from a gap between the joint through hole on the top surface of the top cover plate and the water pipe joint and easily flows along the outline of the plate-shaped radiator, so that the seepage water possibly contacts with an electrical element to influence the operation of the bridge arm damping module.
Disclosure of Invention
The invention aims to provide a water-cooling radiator for an inverter power module, which is suitable for the condition that an insulating plate is not attached to the water-cooling radiator.
In order to achieve the purpose, the technical scheme of the water-cooling radiator for the converter power module is as follows: the water-cooled radiator for the converter power module comprises a cooling liquid pipeline interface arranged at the top, a groove is arranged at the top of the water-cooled radiator, the cooling liquid pipeline interface is arranged at the bottom of the groove,
a water guide channel is arranged at the top of the water-cooled radiator, one end of the water guide channel is communicated with the groove, and the other end of the water guide channel extends to the side face of the water-cooled radiator;
the side surface of the water-cooled radiator is provided with a water flowing groove communicated with the water guide channel, and the water flowing groove extends to the bottom of the water-cooled radiator.
The water-cooling radiator for the converter power module has the advantages that: the water seepage at the joint of the cooling liquid pipeline interface and the water-cooled radiator is collected through the groove at the top of the water-cooled radiator, and the water seepage in the groove is guided to the lower part of the electrical element through the water guide channel and the water flowing groove, so that the water-cooled radiator can be suitable for the condition of not being attached to an insulating plate, the water seepage is prevented from flowing along the outline of the water-cooled radiator and possibly contacting the electrical element to influence the operation of the electrical element, and the reliable operation of a converter power module is ensured.
Furthermore, the launder comprises a vertical section and an inclined section, and the vertical section is positioned at one side close to the water guide channel.
The water-cooled heat radiator has the beneficial effects that the vertical section is arranged to prevent seepage water from overflowing from the joint of the water flowing groove and the water guide channel, and the inclined section is arranged to enable the seepage water to flow out from the side part of the water-cooled heat radiator, so that the water-cooled heat radiator is convenient to collect and can be suitable for the condition of arranging more than two layers of converter power modules.
Further, the groove width of the vertical section is smaller than that of the oblique section.
The water seepage prevention device has the beneficial effects that the component force of the gravity of the seepage water in the inclined section along the extending direction of the groove is small, and the inclined section is set to be large in groove width, so that the seepage water can be prevented from overflowing from the inclined section.
Furthermore, the groove width of the joint of the oblique section and the vertical section is larger than that of the oblique section.
The water seepage prevention device has the beneficial effects that the water seepage is prevented from overflowing from the bending part.
Furthermore, the joint of the oblique section and the vertical section is in circular arc transition.
The water seepage preventing device has the beneficial effects that the water seepage is prevented from overflowing at the bending part.
Furthermore, the launder includes the groove diapire towards the face outside and is located the groove lateral wall of the horizontal direction both sides of groove diapire, and the roughness of groove diapire is less than the roughness of groove lateral wall.
The water seepage prevention device has the beneficial effect of being beneficial to preventing seepage water from overflowing from the water flowing groove when moving in the water flowing groove.
Furthermore, the inclined section comprises an upper groove side wall, a lower groove side wall and a groove bottom wall, and the roughness of the lower groove side wall is greater than that of the upper groove side wall.
The water seepage prevention device has the beneficial effects that the water seepage is prevented from overflowing from the inclined section.
Furthermore, the cooling liquid pipeline interface is provided with more than two positions, the flumes and the cooling pipeline interface are correspondingly arranged, and one end of each flume, which is close to the water outlet, is provided with a superposition section.
The novel water-collecting device has the beneficial effects that the seepage water is collected at one position, and the collection or the cleaning is convenient.
The technical scheme of the converter power module of the invention is as follows: the converter power module comprises a radiator, a top cover plate used for covering the radiator, and a water pipe joint for communicating the radiator with an external cooling water source,
the top cover plate is provided with a joint through hole for the water pipe joint to penetrate through, the water-cooled radiator comprises a cooling liquid pipeline interface arranged at the top, the top of the water-cooled radiator is provided with a groove, the cooling liquid pipeline interface is arranged at the bottom of the groove,
a water guide channel is arranged at the top of the water-cooled radiator, one end of the water guide channel is communicated with the groove, and the other end of the water guide channel extends to the side face of the water-cooled radiator;
the side surface of the water-cooled radiator is provided with a water flowing groove communicated with the water guide channel, the water flowing groove extends to the bottom of the water-cooled radiator, and the joint of the water pipe joint and the cooling liquid pipeline joint is positioned below the top cover plate.
The converter power module has the beneficial effects that: the water seepage at the joint of the cooling liquid pipeline interface and the water-cooled radiator is collected by the groove at the top of the water-cooled radiator, and the water seepage in the groove is guided to the lower part of the electric appliance element by the water guide channel and the water flowing groove, so that the water-cooled radiator can be suitable for the condition that an insulating plate is not attached, the influence on the operation of the electric appliance element caused by the fact that the water seepage flows along the outline of the water-cooled radiator and possibly contacts the electric appliance element is avoided, and the reliable operation of the converter power module is ensured.
Furthermore, the launder includes a vertical section and an oblique section, and the vertical section is located near one side of the water guide channel.
The water-cooled heat radiator has the beneficial effects that the vertical section is arranged to prevent water seepage from overflowing from the joint of the launder and the water guide channel, and the inclined section is arranged to enable the water seepage to flow out of the side part of the water-cooled heat radiator, so that the water-cooled heat radiator is convenient to collect and can be suitable for the condition of arranging more than two layers of converter power modules.
Further, the groove width of the vertical section is smaller than that of the oblique section.
The water seepage control device has the beneficial effects that the component force of the gravity along the extending direction of the groove, which is applied to water seepage in the inclined section, is smaller, and the inclined section is set to be larger in groove width, so that the water seepage can be prevented from overflowing from the inclined section.
Furthermore, the groove width of the joint of the oblique section and the vertical section is larger than that of the oblique section.
The water seepage prevention device has the beneficial effects that the water seepage is prevented from overflowing from the bending part.
Furthermore, the joint of the oblique section and the vertical section is in arc transition.
The water seepage preventing device has the beneficial effects that the water seepage is prevented from overflowing at the bending part.
Furthermore, the launder includes the groove diapire towards the face outside and is located the groove lateral wall of the horizontal direction both sides of groove diapire, and the roughness of groove diapire is less than the roughness of groove lateral wall.
The water seepage prevention device has the beneficial effect of being beneficial to preventing seepage water from overflowing from the water flowing groove when moving in the water flowing groove.
Further, the oblique section comprises an upper groove side wall, a lower groove side wall and a groove bottom wall, and the roughness of the lower groove side wall is larger than that of the upper groove side wall.
The water seepage prevention device has the beneficial effect of being beneficial to preventing seepage water from overflowing from the inclined section.
Furthermore, the cooling liquid pipeline interface is provided with more than two positions, the flumes and the cooling pipeline interface are correspondingly arranged, and one end of each flume, which is close to the water outlet, is provided with a superposition section.
The novel water-collecting device has the beneficial effects that the seepage water is collected at one position, and the collection or the cleaning is convenient.
Furthermore, a sealing ring is arranged in the joint through hole, the cross section of the sealing ring is U-shaped, and a U-shaped clamping groove for embedding the corresponding opening part on the top cover plate is formed in the sealing ring.
The water-cooling heat radiator sealing ring has the advantages that the sealing ring is only provided with one sealing surface matched with the top surface of the water-cooling heat radiator, the probability of sealing failure is reduced, and the water seepage is guaranteed to be prevented from seeping out from the space between the top cover plate and the water-cooling heat radiator.
Drawings
Fig. 1 is a schematic diagram illustrating a usage state of a converter power module according to an embodiment of the present invention;
fig. 2 is a schematic diagram (partial structure) of a use state of an embodiment of a converter power module according to the present invention;
figure 3 is a top view of a partial structure of a converter power module according to an embodiment of the invention;
FIG. 4 is an enlarged view at E in FIG. 3;
fig. 5 is a schematic structural diagram of a water-cooled heat sink in an embodiment of an inverter power module according to the present invention;
FIG. 6 is an enlarged view at C of FIG. 5;
FIG. 7 is a schematic diagram of the water-cooled heat sink and the internal electrical components of FIG. 1;
FIG. 8 is a three-dimensional view 1 of the spout of FIG. 1;
FIG. 9 is a three-dimensional view 2 of the water outlet of FIG. 1;
FIG. 10 is a cross-sectional view of the spout of FIG. 1;
in the figure: 1. the water-cooled radiator comprises a water-cooled radiator body, 2, an inner side electric part, 3, a top cover plate, 4, a sealing ring, 5, a water return pipeline, 6, a water supply pipeline, 7, a water pipe joint, 8, a water guide groove, 9, a water outlet water flowing groove, 10, a vertical section groove bottom wall, 11, a vertical section groove side wall, 12, an oblique section groove bottom wall, 13, an upper section groove side wall, 14, a lower section groove side wall, 15, a water leakage collecting port, 16, a water inlet water flowing groove, 17, a capacitor, 18 and a groove.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In a specific embodiment of the inverter power module of the present invention, as shown in fig. 1 and 2, the inverter power module includes a water-cooled heat sink 1 and a capacitor 17, and a space is provided between the water-cooled heat sink 1 and the capacitor 17. The water-cooled radiator 1 is a vertically arranged plate radiator, the two side plate surfaces of the water-cooled radiator are both provided with inner side electric parts 2, and a distance of 1 cm is formed between the mounting plate of each inner side electric part 2 and the corresponding plate surface of the water-cooled radiator 1. The converter power module further comprises a top cover plate 3 covered on the top of the water-cooled radiator 1, and the top cover plate 3 is used for protecting the inner side electric component 2 and the water-cooled radiator 1.
The top of the water-cooled radiator 1 is provided with a water outlet and a water inlet, the water outlet and the water inlet are respectively connected with a water return pipeline 5 and a water supply pipeline 6 through water pipe joints 7, and the water outlet and the water inlet respectively form a cooling liquid pipeline interface. The water return pipe 5 provides low-temperature cooling water to the water-cooled radiator 1, the low-temperature cooling water absorbs heat in the water-cooled radiator 1 and then is discharged from the water-cooled radiator 1 through the water return pipe 5 to take away heat generated by the inner electric component 2, and the temperature of the inner electric component 2 is maintained to ensure reliable operation of the inner electric component 2.
The water pipe joint 7 is connected with the corresponding water return pipeline 5 and the water supply pipeline 6 through threads, and the concrete connection form is as follows: the water return pipeline 5 and the water supply pipeline 6 are provided with external threads, and the water pipe joint 7 is provided with internal threads matched with the external threads. The water pipe joint 7 is also provided with external threads, the water outlet and the water inlet at the top of the water-cooled radiator 1 are provided with internal threads matched with the external threads on the water pipe joint 7, and the water pipe joint 7 is in threaded connection with the corresponding water outlet or water inlet. Be equipped with the joint via hole that water supply pipe connects 7 to wear out on lamina tecti 3, be equipped with sealing washer 4 in the joint via hole, be equipped with annular joint groove in the circumference of sealing washer 4, annular joint groove is used for the joint via hole department of joint to fix sealing washer 4 on lamina tecti 3, makes sealing washer 4 and lamina tecti 3 form sealed cooperation. The packing 4 seals the gap between the top surface of the water-cooled heat sink 1 and the bottom surface of the top cover plate 3, and the packing 4 prevents liquid and solid impurities from flowing out of the gap between the top surface of the water-cooled heat sink 1 and the bottom surface of the top cover plate 3.
As shown in fig. 7 and 8, the joints between the water pipe joint 7 and the water outlet and between the water pipe joint 7 and the water inlet are located below the top cover plate 3, and when water seeps from the joints, the seeped water may flow along the outer contour of the water-cooled heat sink 1, and may contact the inner electrical component 2 to cause a fault in the inner electrical component 2, thereby affecting the reliable operation of the converter power module.
As shown in fig. 9 and fig. 10, two grooves 18 are formed in the top of the water-cooled heat sink 1, the water outlet and the water inlet are respectively formed in the two grooves 18, the bottom wall of the sealing ring 4 is in sealing fit with the top surface of the water-cooled heat sink 2, two water chutes 8 respectively corresponding to the two grooves 18 are formed in the top surface of the water-cooled heat sink 1 of the groove 18, one end of each water chute 8 is communicated with the groove 18, and the other end of each water chute 8 extends to one side plate surface of the water-cooled heat sink 1.
As shown in fig. 3 and 4, two water flowing grooves are arranged on the plate surface of the water-cooled heat sink 1 corresponding to the water guiding grooves 8, one water flowing groove is a water outlet water flowing groove 9 corresponding to the water outlet, the other water flowing groove is a water inlet water flowing groove 16 corresponding to the water inlet, and the two water flowing grooves are respectively communicated with the two water guiding grooves 8. The water outlet gutter channel 9 is divided into a vertical section communicated with the water chute 8 and an oblique section positioned below the vertical section, the oblique angle of the oblique section is 50 degrees, the oblique section penetrates through the water-cooled radiator 1 from the right side, and a water leakage collecting port 15 is formed at the edge of the water-cooled radiator 1. The water leakage collection port 15 corresponds to the space between the water-cooled radiator 1 and the capacitor 17, so that the water leakage can be conveniently collected. The water inlet gutter channel 16 extends in the vertical direction, the lower end of the water inlet gutter channel 16 is communicated with the inclined section of the water outlet gutter channel 9, the seepage water flowing out of the water inlet gutter channel 16 flows to the water leakage collecting port 15 through the inclined section, and the seepage water at the joint of the water pipe joint 7 and the water outlet and the water pipe joint 7 and the water inlet flows out of the water leakage collecting port 15.
As shown in fig. 5 and 6, the launder is a U-shaped trough comprising a trough bottom wall and trough side walls on either side of the trough bottom wall. The surface roughness of the tank bottom wall of the water inlet launder 16 is smaller than the surface roughness of the tank side wall of the water inlet launder 16. The plane roughness of the vertical section groove bottom wall 10 of the vertical section of the water outlet launder 9 is A3, the plane roughness of the vertical section groove side walls 11 on both sides is A1 and A2, the groove side wall of the oblique section of the water outlet launder 9 is divided into an upper groove side wall 13 positioned on the upper part and a lower groove side wall 14 positioned on the lower part, the surface roughness of the upper groove side wall 13 is B1, the surface roughness of the lower groove side wall 14 is B2, the plane roughness of the oblique section groove bottom wall 12 is B3, and the relationship between the surface roughness of each groove wall in the water outlet launder 9 is as follows: a3> B3, A1= A2> A3, B2> B1> B3. The larger the surface roughness is, the larger the adhesive force of water is, and the larger the adhesive force of the side wall of the trough is than that of the bottom wall of the trough, so that water flow is not easy to overflow the flowing water trough. The larger the surface roughness is, the larger the surface tension of water is, and the surface tension of the side wall of the vertical section groove is larger than that of the bottom wall of the groove, so that the water is not easy to overflow the flowing water groove. Similarly, the surface roughness of the lower cell sidewalls 14 is greater than the surface roughness of the upper cell sidewalls 13 to also facilitate water penetration into the diagonal segments.
The component force of the gravity along the extending direction of the vertical section, which is applied to the water seepage in the vertical section, is larger than the component force of the gravity along the extending direction of the oblique section, which is applied to the water seepage in the oblique section, so if A3= B3, the resistance of the bottom wall of the tank, which is applied to the water seepage, to the water seepage is unchanged, but the force for driving the water seepage to move is reduced, the flowing speed of the water seepage in the oblique section is slowed down, the water seepage is easily accumulated at the joint of the vertical section and the oblique section, so that the water seepage overflows the water outlet water flowing groove 9, the surface roughness of the bottom wall of the tank in the oblique section is smaller than that of the bottom wall of the tank in the vertical section, the water seepage has similar moving speeds in the oblique section and the vertical section, and the water seepage is favorably prevented from overflowing at the joint of the oblique section and the vertical section.
The groove width of the vertical section is d1, the groove width of the oblique section is d2, the joint of the vertical section and the oblique section is in arc transition, the groove width of the joint is d3, and the groove widths of the parts of the water inlet flume 16 are d3> d2> d1. The groove width d2 of slant section is greater than the groove width d1 of vertical section, because the lower part groove lateral wall 14 of slant section carries out the holding power that supports to the infiltration, and this holding power can influence the shape of infiltration, probably leads to the infiltration to spill over, makes the slant section have great groove width, can satisfy the deformation demand of infiltration, does benefit to and avoids the infiltration to spill over from the slant section. The groove width of the joint is the largest and is in arc transition, so that the water seepage steering part is in smooth transition and has a larger buffer space, and the water seepage is prevented from overflowing at the joint. Similarly, the junction between the water inlet gutter channel 16 and the water outlet gutter channel 9 is also in arc transition and has a larger channel width.
In this embodiment, the water guide channel is formed by the water guide groove, and in other embodiments, the water guide channel may also be in other forms, for example, a through hole is formed in the top of the plate surface of the water-cooled heat sink, and two ends of the through hole are respectively communicated with the groove and the gutter channel.
In this embodiment, the water outlet flow channel and the water inlet flow channel partially overlap and form a water leakage collecting port on the water-cooled heat sink, in other embodiments, the water outlet flow channel and the water inlet flow channel may not overlap, so as to form water leakage collecting ports on the water-cooled heat sink respectively.
In this embodiment, one side of the water outlet launder close to the water guide channel is a vertical section, and the water outlet launder further includes an oblique section communicated with the vertical section to realize the communication between the water outlet launder and the water inlet launder.
In this embodiment, the groove width of the vertical section is smaller than that of the oblique section, and in other embodiments, the groove width of the vertical section may be set to be in other forms, for example, the groove width of the vertical section is equal to that of the oblique section, or the groove width of the vertical section is larger than that of the oblique section.
In this embodiment, the width of the oblique segment is smaller than the width of the joint between the vertical segment and the oblique segment, and in other embodiments, the width of the oblique segment may be set to be in other forms, for example, the width of the oblique segment is equal to the width of the joint between the vertical segment and the oblique segment.
In this embodiment, the joint between the oblique section and the vertical section is an arc transition, and in other embodiments, the joint between the oblique section and the vertical section may be set in other forms, for example, the angle formed by the oblique section and the vertical section is an angle formed by straight lines.
In this embodiment, the roughness of the bottom wall of the water flowing groove is smaller than the roughness of the side wall of the water flowing groove, and in other embodiments, the roughness of the bottom wall of the water flowing groove is equal to the roughness of the side wall of the water flowing groove.
In this embodiment, the roughness of the upper trench sidewalls is less than the roughness of the lower trench sidewalls, and in other embodiments, other forms may be used, for example, the roughness of the upper trench sidewalls is equal to the roughness of the lower trench sidewalls.
In this embodiment, the depth of the gutter channel is 2 mm, and the widths of the water outlet gutter channel and the vertical section are 5 mm, and in other embodiments, both the width and the depth of the gutter channel can be changed according to the actual use environment.
In this embodiment, the water leakage collecting port 15 is provided with a water leakage collecting device to collect the water leakage flowing out from the water leakage collecting port, and in other embodiments, the water leakage collecting device is not provided, and the height of the water leakage collecting port is lower than that of the inner electric component, so that the operation of the inner electric component is not affected.
In this embodiment, the inclination angle of the oblique section is 50 °, in other embodiments, the inclination angle of the oblique section may be adjusted according to actual conditions, and the range of the inclination angle of the oblique section is preferably greater than 30 ° and smaller than 75 °.
The specific embodiment of the water-cooled radiator for the converter power module of the present invention is the same as the structure of the water-cooled radiator in the specific embodiment of the converter power module, and is not described again.

Claims (3)

1. A water-cooling radiator for transverter power module, including setting up the coolant liquid pipeline interface at the top, its characterized in that: the top of the water-cooling radiator is provided with a groove, the cooling liquid pipeline interface is arranged at the bottom of the groove,
a water guide channel is arranged at the top of the water-cooled radiator, one end of the water guide channel is communicated with the groove, and the other end of the water guide channel extends to the side face of the water-cooled radiator;
the side surface of the water-cooled radiator is provided with a water flowing groove communicated with the water guide channel, and the water flowing groove extends to the bottom of the water-cooled radiator;
the water flowing groove is a groove with a U-shaped section, the water flowing groove comprises a groove bottom wall facing the outer side of the plate surface and groove side walls positioned on two sides of the groove bottom wall in the horizontal direction, and the roughness of the groove bottom wall is smaller than that of the groove side walls so as to prevent water from overflowing the water flowing groove;
the launder comprises a vertical section and an inclined section, and the vertical section is positioned at one side close to the water guide channel;
the groove width of the vertical section is smaller than that of the oblique section;
the groove width of the joint of the oblique section and the vertical section is larger than that of the oblique section;
the joint of the oblique section and the vertical section is in circular arc transition;
the inclined section comprises an upper groove side wall, a lower groove side wall and a groove bottom wall, and the roughness of the lower groove side wall is greater than that of the upper groove side wall;
the cooling liquid pipeline interface is provided with more than two positions, the launders are arranged corresponding to the cooling pipeline interface, and one end of each launder close to the water outlet is provided with a superposition section.
2. The converter power module comprises a radiator, a top cover plate used for covering the radiator, and a water pipe joint for communicating the radiator with an external cooling water source,
be equipped with the joint via hole that the water supply pipe connects to wear out on the lamina tecti, its characterized in that: the water-cooled radiator for the converter power module as claimed in claim 1, wherein the joint of the water pipe joint and the coolant pipe interface is located below the top cover plate.
3. The converter power module of claim 2 wherein: and a sealing ring is arranged in the joint through hole, the cross section of the sealing ring is U-shaped, and a U-shaped clamping groove for embedding a corresponding opening part on the top cover plate is formed in the sealing ring.
CN201911007435.8A 2019-10-22 2019-10-22 Converter power module and water-cooling radiator thereof Active CN112701876B (en)

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CN204834606U (en) * 2015-06-17 2015-12-02 特变电工新疆新能源股份有限公司 Flexible direct current transmission change of current valve power unit's liquid cooling ware
CN205211737U (en) * 2015-12-21 2016-05-04 思源清能电气电子有限公司 Water -filled radiator for IGBT module
CN105916349A (en) * 2016-04-27 2016-08-31 许继集团有限公司 Direct current power transmission converter valve and water cooling radiator
US10219408B2 (en) * 2016-09-26 2019-02-26 Asia Vital Components Co., Ltd. Water-cooling radiator structure
CN106921300B (en) * 2017-02-21 2019-02-01 许继集团有限公司 A kind of bridge arm damping module and the converter valve with the bridge arm damping module

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