WO2022021483A1 - 一种液冷散热结构和变速箱壳体 - Google Patents

一种液冷散热结构和变速箱壳体 Download PDF

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Publication number
WO2022021483A1
WO2022021483A1 PCT/CN2020/109211 CN2020109211W WO2022021483A1 WO 2022021483 A1 WO2022021483 A1 WO 2022021483A1 CN 2020109211 W CN2020109211 W CN 2020109211W WO 2022021483 A1 WO2022021483 A1 WO 2022021483A1
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WIPO (PCT)
Prior art keywords
cooling liquid
heat dissipation
guide ribs
dissipation structure
liquid
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PCT/CN2020/109211
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English (en)
French (fr)
Inventor
李建文
杨旭东
曾宪文
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精进电动科技股份有限公司
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Application filed by 精进电动科技股份有限公司 filed Critical 精进电动科技股份有限公司
Priority to JP2023505802A priority Critical patent/JP2023535803A/ja
Priority to EP20947769.4A priority patent/EP4160052A4/en
Priority to US18/005,117 priority patent/US20230258260A1/en
Publication of WO2022021483A1 publication Critical patent/WO2022021483A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F16H57/0417—Heat exchangers adapted or integrated in the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0475—Engine and gearing, i.e. joint lubrication or cooling or heating thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers

Definitions

  • the invention belongs to the technical field of gearbox structures, and particularly relates to a liquid-cooled heat dissipation structure and a gearbox casing.
  • gearbox housing with the traditional heat dissipation structure can no longer meet the vehicle development requirements of the automotive industry for high power, high torque, maximum speed and maximum life.
  • the traditional liquid-cooled heat dissipation structure of the transmission case has shortcomings such as small heat dissipation area and the existence of a cooling liquid blind area, resulting in a low heat exchange rate between the transmission case and the cooling liquid, and poor heat dissipation performance. To a certain extent, it will cause damage to the gearbox casing and internal heated parts, affecting the transmission performance and service life of the gearbox system.
  • the present invention discloses a liquid-cooled heat dissipation structure and a gearbox housing to overcome the above problems or at least partially solve the above problems.
  • liquid-cooled heat dissipation structure includes a cooling liquid tank and a cover plate, the cover plate is used to seal the cooling liquid tank, and two ends of the cooling liquid tank are respectively provided with inlets. liquid port and liquid outlet;
  • the cooling liquid tank is provided with a plurality of fixed guide ribs arranged alternately at intervals to form a continuous S-shaped or labyrinth-shaped channel for the cooling liquid to flow through;
  • Suspension guide ribs are also arranged between the fixed guide ribs or between the fixed guide ribs and the inner wall of the cooling liquid tank, and the arrangement of the fixed guide ribs and the suspension guide ribs is used to increase the heat dissipation area , to avoid eddy currents in the flow channel and improve the heat dissipation performance.
  • the floating guide ribs between the fixed guide ribs are arranged in parallel with the fixed guide ribs; and/or,
  • the suspension guide ribs are not parallel to the fixed guide ribs or the inner wall of the cooling liquid tank, so that the cooling liquid can flow sufficiently and avoid eddy currents in the flow channel.
  • the depths of the bottom of the cooling liquid tank on both sides of the suspension guide ribs are different, so that the inner and outer sides of the bottom of the cooling liquid tank are arranged in a wave shape.
  • the wave-like amplitude of the bottom of the cooling liquid tank decreases in steps from the liquid inlet to the liquid outlet.
  • the position and shape of the suspension guide ribs are set according to the positions of the liquid inlet and the liquid outlet, as well as the flow path and flow rate of the cooling liquid.
  • suspension guide ribs are conical troughs, and the side surfaces of the conical troughs are composed of arc surfaces and/or inclined surfaces, so as to avoid eddy currents in the flow channel.
  • a groove is provided on the top of the groove wall of the cooling liquid groove, and a sealing gasket is provided in the groove; and a plurality of threaded holes are provided on the outside of the groove for fixing the cover plate by screws.
  • Another aspect of the present invention discloses a transmission case, the bottom of the transmission case and/or the side part close to the bottom is provided with the heat dissipation structure according to the above, so as to realize the protection of the transmission case.
  • the lubricating fluid inside is cooled.
  • the heat dissipation structure is disposed on the bottom of the gearbox casing and/or on the side near the bottom, so that the cover plate and the bottom or the side are on the same plane when fixed.
  • liquid inlet is communicated with the cooling liquid channel inside the motor water jacket;
  • liquid inlet is connected to the outlet of the motor cooling liquid passage.
  • the heat dissipation contact area between the cooling liquid and the heat dissipation structure is increased, and the cooling liquid can be effectively prevented from inside the heat dissipation structure.
  • the occurrence of eddy currents avoids the dead zone where the cooling liquid does not flow or generates eddy currents; the liquid cooling heat dissipation structure of the present invention has high heat exchange efficiency and lower cost compared to other heat dissipation methods.
  • FIG. 1 is a structural diagram of a liquid-cooled heat dissipation structure in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the liquid cooling structure A-A in an embodiment of the present invention.
  • the liquid-cooled heat dissipation structure includes a cooling liquid tank and a cover plate, and the cover plate is used to seal the cooling liquid tank and prevent the cooling liquid
  • the two ends of the cooling liquid tank are respectively provided with a liquid inlet 1 and a liquid outlet 2, and the positions of the liquid inlet 1 and the liquid outlet 2 can be set according to the needs; After heat exchange in the liquid tank, it flows out from the liquid outlet 2, wherein the liquid outlet 2 is located higher than the liquid inlet 1, which is convenient for heat transfer.
  • a plurality of fixed guide ribs 3 arranged at alternate intervals are arranged in the cooling liquid tank to form a continuous S-shaped or labyrinth-shaped channel for the cooling liquid to flow through.
  • the setting of the fixed guide ribs 3 increases the cooling effect of the cooling liquid.
  • the flow path in the liquid tank further increases the contact area between the cooling liquid and the inner wall of the cooling liquid tank, and promotes heat exchange.
  • One end of the fixed guide rib 3 is connected with the inner wall of the cooling liquid tank at a certain angle, which can prevent the cooling liquid from flowing in the blind area, and the other end is provided with a certain gap with the inner wall of the other side of the cooling liquid tank.
  • the angle and clearance can be adjusted according to the coolant flow path and flow.
  • the number and thickness of the fixed guide ribs 3 can be adjusted according to the size and wall thickness of the heat dissipation structure.
  • a suspension guide rib 4 is also arranged, and only the bottom of the suspended guide ribs 4 is connected with the bottom of the cooling liquid tank.
  • the arrangement of the guide ribs 3 and the suspension guide ribs 4 is used to increase the heat dissipation area, avoid eddy currents in the flow channel, and improve the heat dissipation performance.
  • the cooling liquid is guided to flow according to the designed path, so as to prevent the circulating cooling liquid from bypassing part of the cooling liquid tank and flowing directly to the liquid outlet 2, that is, avoiding the occurrence of the cooling liquid blind area, so that the circulating cooling liquid and the entire inner surface of the cooling liquid tank are fully contacted, increasing the The heat dissipation contact area between the cooling liquid and the heat dissipation structure; the liquid cooling heat dissipation structure of the present invention has high heat exchange efficiency, a relatively simple structure, and a lower cost compared with other heat dissipation structures.
  • the floating guide ribs 4 between the fixed guide ribs 3 are arranged in parallel with the fixed guide ribs 3 to divide the cooling liquid and increase the heat dissipation contact area.
  • the suspension guide ribs 4 are not parallel to the fixed guide ribs 3 or the inner wall of the cooling liquid tank, so that the cooling liquid can flow sufficiently to avoid eddy currents in the flow channel.
  • the depths of the bottom of the cooling liquid tank on both sides of the suspension guide rib 4 are different, so that the inner and outer sides of the bottom of the cooling liquid tank are arranged in a wave shape,
  • the contact area between the cooling liquid and the bottom of the cooling liquid tank is increased to promote heat dissipation, and the amplitude of the wave shape can be adjusted.
  • the wavy bottom can effectively increase the contact area between the bottom of the cooling liquid tank and the heat source, and promote the heat dissipation of the heat source.
  • the wave-like amplitude at the bottom of the cooling liquid tank decreases in steps from the liquid inlet 1 to the liquid outlet 2, which can avoid the dead zone of cooling liquid flow and increase the heat dissipation effect. .
  • the position and shape of the suspension guide ribs 4 are set according to the positions of the liquid inlet 1 and the liquid outlet 2, as well as the flow path and flow rate of the cooling liquid.
  • the suspension guide rib 4 is also in a certain angular positional relationship with the inner wall of the cooling liquid tank. There are certain gaps between the two ends of the suspension guide rib 4 and the inner walls on both sides of the cooling liquid tank. The cooling liquid flows through the gap, and the suspension guide rib 4 The angle and clearance with the inner wall of the coolant tank can be adjusted according to the flow path and flow rate of the coolant.
  • the number and thickness of the floating guide ribs 4 can be adjusted according to the size and wall thickness of the liquid-cooled heat dissipation structure.
  • the suspension guide ribs 4 are conical susceptors, and the side surfaces of the conical susceptors are formed by arc surfaces and/or inclined surfaces, so as to avoid eddy currents in the flow channel.
  • the suspension guide ribs 4 can also be other structures with excellent flow guide effect.
  • the side surfaces of the fixed guide ribs 3 can also be formed by arc surfaces and/or inclined surfaces, and the same effect can be achieved.
  • a groove 5 is provided at the top of the groove wall of the cooling liquid tank, and a sealing gasket is provided in the groove 5 for sealing the cooling liquid tank; the outside of the groove 5 is provided with several
  • the threaded holes 6 are used to fix the cover plate by screws, and the number and position of the threaded holes 6 can be adjusted as required.
  • An embodiment of the present invention discloses a transmission case, the bottom of the transmission case and/or the side part close to the bottom is provided with the heat dissipation structure according to the above, so as to realize the protection of the transmission case.
  • the lubricating liquid inside the body is cooled, the lubricating liquid contacts the bottom of the heat dissipation structure, the heat is transferred from the lubricating liquid to the bottom of the heat dissipation structure, and the cooling liquid takes away the heat at the bottom of the heat dissipation structure, thereby reducing the temperature inside the gearbox housing.
  • the heat dissipating structure is disposed on the bottom of the gearbox casing and/or on the side near the bottom, so that the cover plate and the bottom or the side are at the same position when fixed. on flat surface.
  • the liquid inlet 1 can be arranged on the end face where the gearbox casing and the motor casing are connected, and the cooling between the liquid inlet 1 and the inside of the motor water jacket can be achieved through the channels provided on the motor casing.
  • the liquid channel is connected; the circulating coolant enters the coolant tank of the gearbox directly from the cooling liquid channel of the motor through the cooling liquid inlet 1 provided on the gearbox casing at the joint surface.
  • a water nozzle is set at the liquid inlet 1, and then the liquid inlet 1 is connected to the outlet of the motor cooling liquid channel through the cooling liquid pipeline.
  • the circulating coolant flows out from the outlet of the motor coolant channel, and enters the coolant inlet 1 provided on the outer wall of the gearbox coolant tank through the external coolant pipeline, thereby entering the gearbox coolant tank.
  • the present invention discloses a liquid-cooled heat dissipation structure and a gearbox casing.
  • the liquid-cooled heat dissipation structure includes a cooling liquid tank and a cover plate, the cover plate is used to seal the cooling liquid tank, and the two ends of the cooling liquid tank are respectively provided with liquid inlets and liquid outlet; a plurality of fixed guide ribs arranged at alternate intervals are arranged in the cooling liquid tank to form a continuous S-shaped or labyrinth-shaped channel for the cooling liquid to flow through; between the fixed guide ribs or between the fixed guide ribs and the cooling rib Suspended flow guide ribs are also arranged between the inner walls of the liquid tank, and the fixed flow guide ribs and the suspended flow guide ribs are arranged to increase the heat dissipation area, avoid eddy currents in the flow channel, and improve the heat dissipation performance.
  • the heat dissipation contact area between the cooling liquid and the heat dissipation structure is increased, and the cooling liquid can be effectively prevented from inside the heat dissipation structure.
  • the occurrence of eddy currents avoids the dead zone where the cooling liquid does not flow or generates eddy currents; the liquid cooling heat dissipation structure of the present invention has high heat exchange efficiency and lower cost compared to other heat dissipation methods.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Power Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

本发明公开一种液冷散热结构和变速箱壳体，该液冷散热结构包括冷却液槽和盖板，盖板用于密封冷却液槽，冷却液槽两端分别设置有进液口和出液口；冷却液槽内设置有多个交替间隔设置的固定导流筋，形成供冷却液流过的连续S型或迷宫型通道；固定导流筋之间或者固定导流筋与冷却液槽内壁之间还设置有悬浮导流筋。本发明的液冷散热结构中，通过设置引导循环冷却液流向的悬浮导流筋和固定导流筋，增大了冷却液与散热结构的散热接触面积，避免了冷却液不流动或产生涡流的盲区；本发明的液冷散热结构热交换效率高，相对于其他散热方式成本较低。

Description

一种液冷散热结构和变速箱壳体 技术领域
本发明属于变速箱结构技术领域，特别涉及一种液冷散热结构和变速箱壳体。
发明背景
随着汽车行业的不断发展，变速箱及整个动力***需要面对越来越复杂的工况，用户对变速箱的最高转速、温升情况及寿命的兼顾需求越来越迫切。采用传统散热结构的变速箱壳体已不能满足汽车行业对大功率、大扭矩与最高车速及最高寿命兼顾的车辆发展要求。
目前传统变速箱壳体液冷散热结构，具有散热面积小、存在冷却液盲区等缺点，导致变速箱壳体与冷却液热交换率较低，散热性能不佳。在一定程度上，对变速箱壳体及内部受热零件造成损害，影响变速箱***的传动性能及使用寿命。
发明内容
针对上述问题，本发明公开了一种液冷散热结构和变速箱壳体，以克服上述问题或者至少部分地解决上述问题。
为了实现上述目的，本发明采用以下技术方案：
本发明一方面公开一种液冷散热结构，所述液冷散热结构包括冷却液槽和盖板，所述盖板用于密封所述冷却液槽，所述冷却液槽两端分别设置有进液口和出液口；
所述冷却液槽内设置有多个交替间隔设置的固定导流筋，形成供所述冷却液流过的连续S型或迷宫型通道；
所述固定导流筋之间或者所述固定导流筋与冷却液槽内壁之间还设置有悬浮导流筋，所述固定导流筋和所述悬浮导流筋的设置用于增加散热面积，避免在流道出现涡流，提高散热性能。
进一步地，所述固定导流筋之间的悬浮导流筋与所述固定导流筋平行设置；和/或，
所述悬浮导流筋与所述固定导流筋或所述冷却液槽的内壁不平行，从而使得所述冷却液充分流动，避免在流道出现涡流。
进一步地，所述悬浮导流筋两侧的所述冷却液槽底部的深度不同，使所述冷却液槽底部内侧面和外侧面均呈波浪状设置。
进一步地，所述冷却液槽底部的波浪状幅度从所述进液口到所述出液口梯次减小。
进一步地，所述悬浮导流筋的位置和形状根据所述进液口和所述出液口的位置，以及冷却液的流动路径和流量进行设置。
进一步地，所述悬浮导流筋为锥形台，所述锥形台侧面由弧面和/或斜面构成，用于避免在流道出现涡流。
进一步地，所述冷却液槽的槽壁的顶部设有凹槽，所述凹槽内设有密封垫圈；所述凹槽外侧设有若干螺纹孔，用于通过螺钉固定所述盖板。
本发明另一方面公开一种变速箱壳体，所述变速箱壳体的底部和/或靠近所述底部的侧部上设置有根据上述所述的散热结构，实现对所述变速箱壳体内部的润滑液进行冷却。
进一步地，所述散热结构下沉设置在所述变速箱壳体的底部和/或靠近所述底部的侧部上，使所述盖板固定时与所述底部或侧部在一个平面上。
进一步地，所述进液口与电机水套内部的冷却液通道连通；
或所述进液口与电机冷却液通道出口连接。
本发明的优点及有益效果是：
本发明的液冷散热结构中，通过设置引导循环冷却液流向的悬浮导流筋和固定导流筋，增大了冷却液与散热结构的散热接触面积，并且可以有效防止冷却液在散热结构内部出现涡流，避免了冷却液不流动或产生涡流的盲区；本发明的液冷散热结构热交换效率高，相对于其他散热方式成本较低。
附图简要说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为本发明的一个实施例中液冷散热结构的结构图；
图2为本发明的一个实施例中液冷散热结构A-A处的截面图。
图中：1、进液口，2、出液口，3、固定导流筋，4、悬浮导流筋，5、凹槽，6、螺纹孔。
实施本发明的方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整的描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下结合附图，详细说明本发明各实施例提供的技术方案。
实施例1
本发明一个实施例中公开一种液冷散热结构，如图1所示，所述液冷散热结构包括冷却液槽和盖板，所述盖板用于密封所述冷却液槽，防止冷却液流出，所述冷却液槽两端分别设置有进液口1和出液口2，进液口1和出液口2的位置可以根据需要进行设置；冷却液由进液口1进入，在冷却液槽内进行热量交换后由出液口2流出，其中，出液口2位置高于进液口1设置，便于热量传递。
所述冷却液槽内设置有多个交替间隔设置的固定导流筋3，形成供所述冷却液流过的连续S型或迷宫型通道，固定导流筋3的设置增加了冷却液在冷却液槽内的流动路径，进而增大了冷却液与冷却液槽内壁的接触面积，促进热量交换。固定导流筋3的一端与冷却液槽内壁成一定角度连接，可防止冷却液流动盲区，另一端与冷却液槽另一侧内壁设置有一定间隙，固定导流筋3与冷却液槽内壁的角度和间隙可按照冷却液流动路径与流量进行调整。并且固定导流筋3的数量和厚度可按照散热结构的尺寸与壁厚进行调整。
所述固定导流筋3之间或者所述固定导流筋3与冷却液槽内壁之间还设置有悬浮导流筋4，悬浮导流筋4仅底部与冷却液槽底部连接，所述固定导流筋3和所述悬浮导流筋4的设置用于增加散热面积，避免在流道出现涡流，提高散热性能。
本发明的液冷散热结构中，通过设置引导循环冷却液流向的悬浮导流筋4和固定导流筋3，为经由进液口1进入冷却液槽的循环冷却液提供不同方向的流阻，引导冷却液按照设计路径流动，避免循环冷却液绕过冷却液槽部分位置直接流向出液口2，即避免出现冷却液盲区，使得循环冷却液与冷却液槽整个内表面充分接触， 增大了冷却液与散热结构的散热接触面积；本发明的液冷散热结构热交换效率高，结构相对简单，与其他散热结构相比成本较低。
在一个实施例中，如图1所示，所述固定导流筋3之间的悬浮导流筋4与所述固定导流筋3平行设置，进行冷却液的分流，增大散热接触面积。
所述悬浮导流筋4与所述固定导流筋3或所述冷却液槽的内壁不平行，从而使得所述冷却液充分流动，用于避免在流道出现涡流。
在一个实施例中，如图2所示，所述悬浮导流筋4两侧的所述冷却液槽底部的深度不同，使所述冷却液槽底部内侧面和外侧面均呈波浪状设置，进而增大冷却液与冷却液槽底部接触面积，促进散热，其中波浪状的幅度可进行调整。当冷却液槽底部外侧与热源接触时，波浪状的底部同时可以有效增大冷却液槽底部与热源的接触面积，促进热源散热。
在一个实施例中，如图2所示，所述冷却液槽底部的波浪状幅度从所述进液口1到所述出液口2梯次减小，可以避免冷却液流动盲区，增加散热效果。
在一个实施例中，所述悬浮导流筋4的位置和形状根据所述进液口1和所述出液口2的位置，以及冷却液的流动路径和流量进行设置。悬浮导流筋4与冷却液槽内壁也成一定角度的位置关系，悬浮导流筋4的两端与冷却液槽两侧内壁分别有一定间隙，冷却液从间隙流过，悬浮导流筋4与冷却液槽内壁的角度和间隙可根据冷却液的流动路径与流量进行调整。同时，悬浮导流筋4的数量和厚度可根据液冷散热结构的大小与壁厚进行调整。
在一个实施例中，所述悬浮导流筋4为锥形台，所述锥形台侧面由弧面和/或斜面构成，避免在流道出现涡流。当然，悬浮导流筋4也可以为具有优异导流效果的其他结构。同样，固定导流筋3侧面也可由弧面和/或斜面构成，并且起到相同的效果。
在一个实施例中，所述冷却液槽的槽壁的顶部设有凹槽5，所述凹槽5内设有密封垫圈，用于冷却液槽的密封；所述凹槽5外侧设有若干螺纹孔6，用于通过螺钉固定所述盖板，螺纹孔6的数量和位置可根据需要进行调整。
实施例2
本发明一个实施例中公开一种变速箱壳体，所述变速箱壳体的底部和/或靠近所述底部的侧部上设置有根据上述所述的散热结构，实现对所述变速箱壳体内部的润滑液进行冷却，润滑液与散热结构的底部接触，热量由润滑液传递到散热结构的 底部，冷却液再把散热结构底部的热量带走，进而降低变速箱壳体内部的温度。
在一个实施例中，所述散热结构下沉设置在所述变速箱壳体的底部和/或靠近所述底部的侧部上，使所述盖板固定时与所述底部或侧部在一个平面上。
在一个实施例中，进液口1可设置在变速箱壳体与电机壳体连接的端面上，通过电机壳体上设置的通道实现所述进液口1与电机水套内部的冷却液通道连通；循环冷却液从电机冷却液通道直接经由结合面处设置于变速箱壳体上冷却液进液口1进入变速箱冷却液槽内。
在进液口1处设置一个水嘴，然后通过冷却液管道实现所述进液口1与电机冷却液通道出口连接。循环冷却液从电机冷却液通道出口流出，经由外部冷却液管道，进入设置于变速箱冷却液槽外壁处的冷却液进液口1，从而进入变速箱冷却液槽内。
综上，本发明公开一种液冷散热结构和变速箱壳体，液冷散热结构包括冷却液槽和盖板，盖板用于密封冷却液槽，冷却液槽两端分别设置有进液口和出液口；冷却液槽内设置有多个交替间隔设置的固定导流筋，形成供冷却液流过的连续S型或迷宫型通道；固定导流筋之间或者固定导流筋与冷却液槽内壁之间还设置有悬浮导流筋，固定导流筋和悬浮导流筋的设置用于增加散热面积，避免在流道出现涡流，提高散热性能。本发明的液冷散热结构中，通过设置引导循环冷却液流向的悬浮导流筋和固定导流筋，增大了冷却液与散热结构的散热接触面积，并且可以有效防止冷却液在散热结构内部出现涡流，避免了冷却液不流动或产生涡流的盲区；本发明的液冷散热结构热交换效率高，相对于其他散热方式成本较低。
以上仅为本发明的具体实施方式，在本发明的上述教导下，本领域技术人员可以在上述实施例的基础上进行其他的改进或变形。本领域技术人员应该明白，上述的具体描述只是更好的解释本发明的目的，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种液冷散热结构，其特征在于，所述液冷散热结构包括冷却液槽和盖板，所述盖板用于密封所述冷却液槽，所述冷却液槽两端分别设置有进液口和出液口；
    所述冷却液槽内设置有多个交替间隔设置的固定导流筋，形成供所述冷却液流过的连续S型或迷宫型通道；
    所述固定导流筋之间或者所述固定导流筋与冷却液槽内壁之间还设置有悬浮导流筋，所述固定导流筋和所述悬浮导流筋的设置用于增加散热面积，避免在流道出现涡流，提高散热性能。
  2. 根据权利要求1所述的散热结构，其特征在于，所述固定导流筋之间的悬浮导流筋与所述固定导流筋平行设置；和/或，
    所述悬浮导流筋与所述固定导流筋或所述冷却液槽的内壁不平行，从而使得所述冷却液充分流动，避免在流道出现涡流。
  3. 根据权利要求1所述的散热结构，其特征在于，所述悬浮导流筋两侧的所述冷却液槽底部的深度不同，使所述冷却液槽底部内侧面和外侧面均呈波浪状设置。
  4. 根据权利要求3所述的散热结构，其特征在于，所述冷却液槽底部的波浪状幅度从所述进液口到所述出液口梯次减小。
  5. 根据权利要求1所述的散热结构，其特征在于，所述悬浮导流筋的位置和形状根据所述进液口和所述出液口的位置，以及冷却液的流动路径和流量进行设置。
  6. 根据权利要求5所述的散热结构，其特征在于，所述悬浮导流筋为锥形台，所述锥形台侧面由弧面和/或斜面构成，用于避免在流道出现涡流。
  7. 根据权利要求1所述的散热结构，其特征在于，所述冷却液槽的槽壁的顶部设有凹槽，所述凹槽内设有密封垫圈；所述凹槽外侧设有若干螺纹孔，用于通过螺钉固定所述盖板。
  8. 一种变速箱壳体，其特征在于，所述变速箱壳体的底部和/或靠近所述底部的侧部上设置有根据权利要求1-7任一项所述的散热结构，实现对所述变速箱壳体内部的润滑液进行冷却。
  9. 根据权利要求8所述的变速箱壳体，其特征在于，所述散热结构下沉设置 在所述变速箱壳体的底部和/或靠近所述底部的侧部上，使所述盖板固定时与所述底部或侧部在一个平面上。
  10. 根据权利要求8或9所述的变速箱壳体，其特征在于，所述进液口与电机水套内部的冷却液通道连通；或所述进液口与电机冷却液通道出口连接。
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