WO2019201226A1 - 一种梯度式汽车膨胀水箱 - Google Patents

一种梯度式汽车膨胀水箱 Download PDF

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Publication number
WO2019201226A1
WO2019201226A1 PCT/CN2019/082801 CN2019082801W WO2019201226A1 WO 2019201226 A1 WO2019201226 A1 WO 2019201226A1 CN 2019082801 W CN2019082801 W CN 2019082801W WO 2019201226 A1 WO2019201226 A1 WO 2019201226A1
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Prior art keywords
water
chamber
water tank
tank body
type automobile
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PCT/CN2019/082801
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English (en)
French (fr)
Inventor
邵奎柱
Original Assignee
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 US16/980,674 priority Critical patent/US11401857B2/en
Priority to JP2020556950A priority patent/JP7098750B2/ja
Priority to EP19787787.1A priority patent/EP3783206B1/en
Publication of WO2019201226A1 publication Critical patent/WO2019201226A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0204—Filling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/0285—Venting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P2003/001—Cooling liquid

Definitions

  • the invention belongs to the technical field of multi-cooling systems for new energy vehicles, and particularly relates to a gradient type automobile expansion water tank.
  • New energy vehicles are an emerging field in the automotive industry.
  • Vehicle power systems need to be equipped with two or three independent cooling systems, each of which requires an expansion tank.
  • the cooling water of the motor and motor controller of the new energy vehicle requires the inlet temperature to be below 65 °C, and the cooling water of the power battery requires the inlet temperature to be below 35 °C. Due to the difference in water temperature, the cooling system and the filling port are difficult to share.
  • Hybrid vehicles also have an engine cooling system, and the engine cooling system inlet temperature is around 90 °C.
  • the three sets of cooling systems cannot be shared due to the difference in cooling water temperature, which makes the filling port of the whole vehicle not concentrated, and the layout space of the engine compartment is limited, which makes the arrangement of the whole vehicle difficult, the user is inconvenient to use and maintain, and the daily maintenance cost is high.
  • an object of the present invention is to provide a gradient type automobile expansion water tank, which can solve the problem that the existing automobile expansion water tank can be independently set and cannot be shared, so that the entire vehicle filling port cannot be concentrated, the whole vehicle layout is difficult, and the user is inconvenient to use and maintain. problem.
  • a gradient type automobile expansion water tank comprises a water tank body and a water blocking board, wherein the inside of the water tank body is divided into a high chamber, a middle chamber and a low chamber by two different water blocking plates, and each chamber
  • the top of the connection is connected, and a water outlet is respectively arranged at the bottom, and a filling port is arranged at the top of the water tank body.
  • the top of the high-level chamber, the middle chamber and the low-level chamber are provided with a horizontally disposed water deflector, and the water retaining plate is provided with at least one water level balance port.
  • the heights of the water retaining plates at the top of the high-level chamber, the middle chamber and the lower chamber are sequentially lowered, and have a gradient structure.
  • the height of the two water barriers is higher than the horizontal position of the water flaps on both sides thereof.
  • the water tank body, the water blocking plate and the water blocking plate are made of a polymer material.
  • the water level balance port is disposed at an intermediate position of the water flap.
  • an upper portion of the water tank body is provided with an overflow port.
  • a lower portion of the water tank body is provided with a filling amount adjusting port that communicates with the lower chamber.
  • the filling port corresponds to the high-level chamber, and the filling port is provided with a water-filling cover.
  • the water level sensor is provided inside the high chamber, the middle chamber and the low chamber.
  • the invention has the advantages and beneficial effects that the invention integrates the filling device of the motor, the power battery and the engine cooling system, reduces the layout space of the whole vehicle and is convenient for the customer to use.
  • the invention utilizes the gradient structure to unify the filling of the cooling system of the engine, the motor and the power battery, and has a regional blocking effect on the water due to the addition of the gradient structure, and even if the steep slope is encountered, the water can be prevented from merging and being restored straight. On the road surface, the water in each independent system will recover quickly.
  • the invention can define the use of the chamber according to the normal working water temperature, so that the water temperature radiation effect can be reduced.
  • the difference between the left and right distances of the chamber and the height of the flap can be flexibly defined according to the specific application environment.
  • Figure 1 is a schematic view of the structure of the present invention
  • FIG. 2 is a schematic structural view of a water retaining plate according to the present invention.
  • 1 is the filling port
  • 2 is the overflow port
  • 3 is the water blocking plate
  • 4 is the water blocking plate
  • 5 is the water outlet
  • 6 is the water level balance port
  • 7 is the filling amount adjusting port
  • 8 is the box body 9 is a high chamber
  • 10 is a middle chamber
  • 11 is a low chamber.
  • the filling ports of the cooling system of the engine, the motor and the power battery are independently set and cannot be shared, so that the filling port of the whole vehicle cannot be concentrated, the arrangement of the whole vehicle is difficult, and the user is inconvenient to use and maintain.
  • the present invention utilizes a gradient structure to unify the filling device of the cooling system of the engine, the motor, and the power battery, thereby reducing the layout space of the entire vehicle and facilitating the use of the customer. Due to the increased gradient structure, there is a regional barrier to water. Even if it encounters a steep slope, it can prevent the water from merging with each other. On the restoration of the straight road surface, the water of each independent system will recover quickly.
  • a gradient type automobile expansion water tank provided by the embodiment includes a water tank body 8 and a water blocking plate 4 , wherein the inside of the water tank body 8 is separated into a high position by two water blocking plates 4 having different heights.
  • the chamber 9, the intermediate chamber 10 and the lower chamber 11, the upper chamber 9, the middle chamber 10 and the top of the lower chamber 11 communicate with each other, and the bottom portion is respectively provided with a water outlet 5, and the top of the water tank body 8 is provided Fill port 1.
  • the top of the high chamber 9, the middle chamber 10 and the lower chamber 11 are provided with a water retaining plate 3 for closing each chamber, and the water retaining plate 3 can prevent or alleviate water fusion of adjacent chambers during vehicle operation.
  • the water-retaining plate 3 at the top of the high-level chamber 9, the intermediate chamber 10 and the lower chamber 11 is horizontally disposed, and the height is sequentially lowered to have a gradient structure.
  • each of the water retaining plates 3 is provided with at least one water level balance port 6, and the water level balance port 6 is disposed at an intermediate position of the water retaining plate 3.
  • the water retaining plate 3 is provided with three water level balance ports 6 for balancing the liquid inside and outside the chamber.
  • the height of the two water blocking plates 4 is lower than the top of the water tank body 8 and higher than the horizontal position of the water deflecting plates 3 on both sides thereof, that is, the water blocking between the high level chamber 9 and the intermediate chamber 10.
  • the height of the plate 4 is higher than the level of the water-blocking plate 3 at the top of the high-level chamber 9 and the intermediate chamber 10, and the height of the water-blocking plate 4 between the intermediate chamber 10 and the lower chamber 11 is higher than the middle position.
  • the filling port 1 corresponds to the high chamber 9, and the filling port 1 is provided with a water adding cover plate, and the water adding cover plate can seal the water tank body 8, reduce the loss of the cooling liquid, increase the working pressure of the system, and simultaneously release the pressure of the cover. Or fill in the required coolant.
  • the upper portion of the water tank body 8 is provided with a horizontally disposed overflow port 2.
  • two overflow ports 2 are symmetrically disposed on the upper portion of the water tank body 8, and the two overflow ports 2 are respectively disposed at the upper ends of the upper chamber 9 and the lower chamber 11.
  • the lower portion of the water tank body 8 is provided with a filling amount adjusting port 7 communicating with the lower chamber 11, and the filling amount adjusting port 7 is for controlling the liquid level of the cooling liquid in the lower chamber 11.
  • the water level sensor is arranged inside the high chamber 9, the middle chamber 10 and the low chamber 11, and the water level is timely warning when the water level is too low or too high.
  • the water tank body 8, the water blocking plate 4 and the water retaining plate 3 are made of a heat-resistant polymer material with a low conductivity, such as a PP material, which has good heat insulation effect, and heat transfer does not occur between the chambers, and can work independently.
  • the water tank body 8 has a see-through nature, and the liquid level in each chamber can be seen.
  • the number of the water outlet 5 and the overflow port 2 on the water tank body 8 can be increased or decreased according to actual needs.
  • the widths L1, L2, and L3 of the lower chamber 11, the intermediate chamber 10, and the upper chamber 9 can be adjusted according to the cooling demand of the respective water cycles, and the upper chamber 9, the intermediate chamber 10, and the upper portion of the lower chamber 11 are adjusted.
  • the ratio of the volume of the chamber to the volume of the lower coolant can be determined based on the total expansion space requirement of the coolant of the high and low temperature cooling system.
  • the distance H1 between the respective water deflectors 3 and the top of the water blocking plate 4, H1, H2, and the height difference H4 between the two water blocking plates 4 can be adjusted according to the vehicle use environment and water exchange amount control.
  • the chamber can be defined according to the actual working temperature of the coolant, which can reduce the amount of heat radiation between each other.
  • the water outlet 5 at the bottom of the high-level chamber 9 communicates with the cooling system of the power battery to provide cooling liquid for the cooling system of the power battery; the water outlet 5 at the bottom of the middle chamber 10 and the motor and the motor controller
  • the cooling system is in communication to provide coolant to the drive motor cooling system; the lower chamber 11 is in communication with the engine cooling system to provide coolant to the engine cooling system.
  • Two water blocking plates 4 having different heights are added inside the water tank body 8 of the expansion water tank, and the water tank body 8 is divided into three relatively independent chambers, that is, a lower chamber 11, a middle chamber 10 and a high chamber. 9.
  • a water deflector 3 is added at the top of each chamber, and the water level balance port 6 is opened in the middle of the water retaining plate 3.
  • the initial filling amount is below the watering cover plate, and the water retaining plate 3 can prevent or alleviate the water fusion of the adjacent chambers during the running of the vehicle.
  • the high chamber 9 When filling, the high chamber 9 can be filled up first, and the top of the water blocking plate 4 flows into the middle chamber 10, the middle chamber 10 is filled up, and then flows into the low position through the top of the other water blocking plate 4.
  • the filling is slightly lower than the standard filling, and the height of the cooling liquid level in the lower chamber 11 can be controlled by adding the filling amount adjusting port 7.
  • the cooling liquid in the lower chamber 11, the intermediate chamber 10 and the high chamber 9 is separated by a heat-insulating water blocking plate 4, and heat transfer does not occur between the chambers, and the working can be performed independently. During use, the high, medium and low liquid levels will gradually balance. It is also possible to add a filling aid and control each chamber independently.
  • the gradient structure can be used to unify the cooling system of the engine, the motor and the power battery. Due to the increased gradient structure, the water has a regional barrier, and even if a steep slope is encountered, the water can be prevented from merging, and the flatness is restored. Straight road, each independent system water will respond quickly.
  • the flap 3 can prevent or mitigate water fusion of adjacent chambers during operation of the vehicle.
  • the embodiment integrates the motor, the power battery and the engine cooling system filling device, thereby reducing the layout space of the whole vehicle and facilitating the use of the customer.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

一种梯度式汽车膨胀水箱，包括水箱体（8）和隔水板（4），其中水箱体（8）的内部通过两个高度不同的隔水板（4）分隔为高位腔室（9）、中位腔室（10）及低位腔室（11），各腔室的顶部连通，底部分别设有一出水口（5），水箱体（8）的顶部设有与高位腔室相对应的加注口（1）。该梯度式汽车膨胀水箱利用梯度结构，可以将发动机、电机动力电池的冷却系统的加注统一，且由于增加了梯度结构，对水有了区域阻隔，在档水板和隔水板的作用下，即使遇到陡坡，也可以防止水相互融合，在恢复平直路面，各独立系统水会快速恢复。

Description

一种梯度式汽车膨胀水箱 技术领域
本发明属于新能源汽车多冷却系统技术领域，特别涉及一种梯度式汽车膨胀水箱。
发明背景
新能源汽车是汽车行业内的新兴领域，车辆动力系统需要配备2～3套相互独立的冷却系统，每个冷却系统均需要配备膨胀水箱。新能源汽车的电机、电机控制器的冷却水要求入口温度在65℃以下，动力电池的冷却水要求入口温度在35℃以下。由于水温的差异，冷却系统及加注口很难共用。混合动力汽车还有发动机冷却系统，发动机冷却系统入水口温度在90℃左右。三套冷却系统因冷却水温差异，不能共用，造成整车加注口不能集中，发动机舱的布置空间有限，使整车布置困难，用户使用维护不便，日常的保养维护成本高。
发明内容
针对上述问题，本发明的目的在于提供一种梯度式汽车膨胀水箱，以解决现有汽车膨胀水箱独立设置，不能共用，造成整车加注口不能集中，整车布置困难，用户使用维护不便的问题。
为了实现上述目的，本发明采用以下技术方案：
一种梯度式汽车膨胀水箱，包括水箱体和隔水板，其中水箱体的内部通过两个高度不同的隔水板分隔为高位腔室、中位腔室及低位腔室，各腔室的顶部连通，底部分别设有一出水口，所述水箱体的顶部设有加注口。
优选地，所述高位腔室、中位腔室及低位腔室的顶部均设有水平设置的挡水板，所述挡水板上至少设有一个水位平衡口。
优选地，所述高位腔室、中位腔室及低位腔室顶部的挡水板的高度依次降低，呈梯度式结构。
优选地，两个所述隔水板的高度高于位于其两侧的所述挡水板的水平位置。
优选地，所述水箱体、隔水板及挡水板采用高分子材料。
优选地，所述水位平衡口设置于所述挡水板的中间位置。
优选地，所述水箱体的上部设有溢汽口。
优选地，所述水箱体的下部设有与所述低位腔室连通的加注量调节口。
优选地，所述加注口与所述高位腔室相对应，所述加注口上设有加水盖板。
优选地，所述高位腔室、中位腔室及低位腔室的内部均设有水位传感器。
本发明的优点及有益效果是：本发明集成了电机、动力电池及发动机冷却系统的加注装置，减少了整车布置空间，便于客户使用。
本发明利用梯度结构，可以将发动机、电机、动力电池的冷却系统的加注统一，由于增加了梯度结构，对水有了区域阻隔，即使遇到陡坡，可以防止水相互融合，在恢复平直路面，各独立系统水会快速恢复。
本发明可以按照正常工作的水温高低进行腔室定义使用，这样可以减少水温辐射作用。腔室左右距离和挡水板的高度差可以根据具体应用环境灵活定义。
附图简要说明
图1为本发明的结构示意图；
图2为本发明中挡水板的结构示意图。
图中：1为加注口，2为溢汽口，3为挡水板，4为隔水板，5为出水口，6为水位平衡口，7为加注量调节口，8为箱体，9为高位腔室，10为中位腔室，11为低位腔室。
实施本发明的方式
现有汽车膨胀水箱，其发动机、电机、动力电池的冷却系统的加注口独立设置，不能共用，造成整车加注口不能集中，整车布置困难，用户使用维护不便。
针对上述问题，本发明利用梯度结构，将发动机、电机、动力电池的冷却系统的加注装置统一，减少了整车布置空间，便于客户使用。由于增加了梯度结构，对水有了区域阻隔，即使遇到陡坡，可以防止水相互融合，在恢复平直路面，各独立系统水会快速恢复。
为了使本发明的目的、技术方案和优点更加清楚，下面结合附图和具体实施例对本发明进行详细描述。
如图1所述，本实施例提供的一种梯度式汽车膨胀水箱，包括水箱体8和隔水板4，其中水箱体8的内部通过两个高度不同的隔水板4分隔为高位腔室9、中位腔室10及低位腔室11，高位腔室9、中位腔室10及低位腔室11的顶部连通，底部分别设有一出水口5，水箱体8的顶部设有加注口1。
高位腔室9、中位腔室10及低位腔室11的顶部均设有用于封闭各腔室的挡水板3，挡水板3可以在车辆运行过程中防止或缓解相邻腔室水融合。高位腔室9、中位腔室10及低位腔室11顶部的挡水板3水平设置、且高度依次降低，呈梯度式结构。
如图2所示，各挡水板3上至少设有一个水位平衡口6，水位平衡口6设置于挡水板3的中间位置。本实施例中，挡水板3上设有三个水位平衡口6，用于平衡腔室内外的液体。
两个隔水板4的高度低于水箱体8的顶部，且高于位于其两侧的挡水板3的水平位置，即位于高位腔室9和中位腔室10之间的隔水板4的高度高于高位腔室9和中位腔室10顶部的挡水板3的水平高度，位于中位腔室10和低位腔室11之间的隔水板4的高度高于中位腔室10和低位腔室11顶部的挡水板3的水平高度。
加注口1与高位腔室9相对应，加注口1上设有加水盖板，加水盖板可使水箱体8密闭，减少冷却液流失，提高系统工作压力，同时可开盖释压或加注所需的冷却液。
水箱体8的上部设有水平设置的溢汽口2。本实施例中，在水箱体8的上部对称设有两个溢汽口2，两个溢汽口2分别设置于高位腔室9和低位腔室11的上端。
水箱体8的下部设有与低位腔室11连通的加注量调节口7，加注量调节口7用来控制低位腔室11内冷却液液面高度。高位腔室9、中位腔室10及低位腔室11的内部均设有水位传感器，水位过低或过高时及时预警。
水箱体8、隔水板4及挡水板3采用低传导系数的耐热的高分子材料，如PP材料，隔热效果好，各腔室之间不会发生热传递，可独立工作。水箱体8具有透视性，可看见各腔室内的液面高度。水箱体8上的出水口5和溢汽口2的数量可以根据实际需要增减。
低位腔室11、中位腔室10及高位腔室9的宽度L1、L2、L3，可以根据各自水循环的冷却量需求进行调整，高位腔室9、中位腔室10及低位腔室11上部的腔室体积与下部的冷却液的体积之比可根据高低温冷却系统冷却液总的膨胀空间需求确定。各挡水板3与隔水板4顶部之间的距离H1、H2、H3及两个隔水板4之间的高度差H4可以根据车辆使用环境及水交换量控制来调整。腔室使用可以根据实际冷却液工作温度高低进行定义，可以减少相互间热辐射量。
本实施例中，高位腔室9底部的出水口5与动力电池的冷却系统连通，为动力电池的冷却系统提供冷却液；中位腔室10底部的的出水口5与电机、电机控制器 的冷却系统连通，为驱动电机冷却系统提供冷却液；低位腔室11与发动机冷却系统连通，为发动机冷却系统提供冷却液。
本实施例的工作原理是：
在膨胀水箱的水箱体8内部增加两个高度不同的隔水板4，将水箱体8分隔为相对独立的三个腔室，即低位腔室11、中位腔室10及高位腔室9。在每个腔室顶部增设挡水板3，挡水板3中部开水位平衡口6。初始加注量在加水盖板以下，挡水板3可以在车辆运行过程中防止或缓解相邻腔室水融合。
加注时，可以先将高位腔室9加满，并由隔水板4的顶部流入中位腔室10中，中位腔室10加满，再经过另一隔水板4的顶部流入低位腔室11内，加注略低于标准加注，可以通过增设加注量调节口7来控制低位腔室11内冷却液液面高度。低位腔室11、中位腔室10及高位腔室9内的冷却液由可隔绝热量的隔水板4隔开，各腔室之间不会发生热传递，可独立工作。使用过程中，高位、中位及低位液面会逐步平衡。也可以增加加注辅助工具，每个腔室独立加注控制。
本实施例利用梯度结构，可以将发动机、电机、动力电池的冷却系统的加注统一，由于增加了梯度结构，对水有了区域阻隔，即使遇到陡坡，可以防止水相互融合，在回复平直路面，各独立系统水会快速回复。挡水板3可以在车辆运行过程中防止或缓解相邻腔室水融合。
本实施例集成了电机、动力电池及发动机冷却系统加注装置，减少了整车布置空间，便于客户使用。
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. 一种梯度式汽车膨胀水箱，其特征在于，包括水箱体(8)和隔水板(4)，其中水箱体(8)的内部通过两个高度不同的隔水板(4)分隔为高位腔室(9)、中位腔室(10)及低位腔室(11)，各腔室的顶部连通，底部分别设有一出水口(5)，所述水箱体(8)的顶部设有加注口(1)。
  2. 根据权利要求1所述的梯度式汽车膨胀水箱，其特征在于，所述高位腔室(9)、中位腔室(10)及低位腔室(11)的顶部均设有用于封闭腔室的挡水板(3)，所述挡水板(3)上至少设有一个水位平衡口(6)。
  3. 根据权利要求2所述的梯度式汽车膨胀水箱，其特征在于，所述高位腔室(9)、中位腔室(10)及低位腔室(11)顶部的挡水板(3)水平设置、且高度依次降低，呈梯度式结构。
  4. 根据权利要求2所述的梯度式汽车膨胀水箱，其特征在于，两个所述隔水板(4)的高度高于位于其两侧的所述挡水板(3)的水平位置。
  5. 根据权利要求2所述的梯度式汽车膨胀水箱，其特征在于，所述水箱体(8)、隔水板(4)及挡水板(3)采用高分子材料。
  6. 根据权利要求2所述的梯度式汽车膨胀水箱，其特征在于，所述水位平衡口(6)设置于所述挡水板(3)的中间位置。
  7. 根据权利要求1或2所述的梯度式汽车膨胀水箱，其特征在于，所述水箱体(8)的上部设有溢汽口(2)。
  8. 根据权利要求1或2所述的梯度式汽车膨胀水箱，其特征在于，所述水箱体(8)的下部设有与所述低位腔室(11)连通的加注量调节口(7)。
  9. 根据权利要求1所述的梯度式汽车膨胀水箱，其特征在于，所述加注口(1)与所述高位腔室(9)相对应，所述加注口(1)的上方设有加水盖板。
  10. 根据权利要求1所述的梯度式汽车膨胀水箱，其特征在于，所述高位腔室(9)、中位腔室(10)及低位腔室(11)的内部均设有水位传感器。
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