WO2018086606A1

WO2018086606A1 - Modular and extensible temperature adjustment system

Info

Publication number: WO2018086606A1
Application number: PCT/CN2017/110576
Authority: WO
Inventors: 郑毅; 谭广志; 陈炯; 何旭
Original assignee: 蔚来汽车有限公司
Priority date: 2016-11-11
Filing date: 2017-11-10
Publication date: 2018-05-17
Also published as: CN106972207A; CN106972207B

Abstract

Provided are a modular and extensible temperature adjustment system, so as to resolve the problems such as low cooling efficiency and high specificity in an existing battery cooling solution. To achieve the objective, the modular and extensible battery temperature adjustment system is connected to a plurality of batteries to adjust the temperature of the plurality of batteries. The adjustment system comprises an electrically controlled system, a heat exchanger, a coolant circulating pump, and a coolant storage apparatus. The electrically controlled system is connected to the heat exchanger and/or the coolant circulating pump. The coolant circulating pump, the heat exchanger, and the coolant storage apparatus are connected into a loop by using a pipe system. The pipe system comprises a primary pipe and a plurality of branch pipes. Each battery is disposed on one branch pipe. When an introduced waterway needs to be expanded or reduced, only a connector needs to be expanded, and a corresponding sensor signal is introduced from a controller for measurement.

Description

Modular and expandable temperature regulation system

Technical field

The invention belongs to the technical field of battery temperature control, and in particular provides a modular and expandable battery temperature regulation system.

Background technique

At present, the electric vehicle industry is developing rapidly, and the requirements for batteries are getting higher and higher. The capacity of the battery is greatly affected by the temperature, and the battery charging and discharging has a limited range for the external environment temperature. At the same time, the mobile charging car battery needs a large rate of charge/discharge, and a large amount of heat is generated along with the charging/discharging process. If the battery heating problem is not handled well, it will directly affect the battery performance and cycle life.

The existing electric vehicles mainly use air-cooling and water-cooling to cool the battery. The air-cooling efficiency is low and the heat dissipation is uneven. It is difficult to ensure heat dissipation and heat preservation in high temperature and cold weather. Nowadays more and more electric vehicles are used. The water cooling method dissipates heat from the battery. However, the current water cooling schemes for batteries are designed for single batteries and the electric powertrain system of the entire vehicle. This design has high specificity and is generally only for one type of vehicle, which leads to a great application promotion. limit.

Accordingly, there is a need in the art for a temperature regulation system to address the above problems.

Summary of the invention

In order to solve the above problems in the prior art, in order to solve the problem that the cooling system of the battery has low cooling efficiency, high specificity, and limited application promotion, the present invention provides a modular and expandable temperature regulation system, the temperature An adjustment system is coupled to the plurality of objects to be cooled for adjusting a temperature of the plurality of objects to be cooled, the battery temperature adjustment system including an electronic control system, a coolant circulation pump, a heat exchanger, a coolant storage device, and a pipeline System, the electronic control system is connected to the heat exchanger and/or the coolant circulation pump, and the coolant circulation pump, the heat exchanger and the coolant storage device are connected by the pipeline system In the loop, the piping system includes a main pipeline and a plurality of branch pipelines, and each of the objects to be cooled is disposed on one of the branch pipelines.

In a preferred technical solution of the above modular and expandable temperature regulation system, the electronic control system includes a controller and a plurality of temperature sensors, each of the temperature sensors being disposed in one-to-one correspondence with each of the objects to be cooled. On one of the branch lines, the temperature sensor detects the temperature of the coolant in the branch line and feeds back a signal to the controller, and the controller can control the coolant according to the detection result of the temperature sensor. The operation of the circulation pump and/or the heat exchanger.

In a preferred technical solution of the above modular and expandable temperature regulation system, each of the branch lines is further provided with an adjustable flow rate valve, and the controller is further capable of controlling according to the detection result of the temperature sensor. The opening of the flow valve.

In a preferred embodiment of the modular expandable temperature regulation system described above, the temperature regulation system further includes a heating device disposed in the main conduit, the heating device for heating the coolant when the temperature is too low. .

In a preferred embodiment of the modular scalable temperature regulation system described above, the object to be cooled is a battery or PCB motherboard.

In a preferred technical solution of the above modular and scalable temperature regulation system, the battery is a power battery of an electric vehicle or a battery in a mobile charging vehicle or a power station for charging and replacing an electric vehicle, and an energy storage device. battery.

In a preferred embodiment of the above modular and expandable battery temperature regulation system, the coolant is water or an antifreeze mixture of water and ethylene glycol.

In a preferred embodiment of the modular expandable temperature regulation system described above, the coolant storage device is a water tank or an antifreeze tank.

In a preferred embodiment of the modular, scalable temperature regulation system described above, the coolant circulation pump is a circulating water pump.

In a preferred embodiment of the modular scalable temperature regulation system described above, the heat exchanger comprises a compressor.

Those skilled in the art can understand that, in the case of adopting the above technical solution, the present invention can ensure that the battery of the mobile charging vehicle can adapt to various operating conditions of input and output under various environmental conditions, and the device can be stably and efficiently operated for a long time. At the same time, it can be used for charging work of various models, and application promotion is not limited. In addition, the battery control module and the waterway control are connected in parallel. When it is necessary to expand or reduce the water path that is taken out (if the system capacity allows), simply expand the connector and take the corresponding sensor signal from the controller for measurement. Just fine.

DRAWINGS

1 is a block diagram showing the structure of a modular and expandable battery temperature regulation system of the present invention;

2 is a block diagram showing the structure of a branch of the modular and expandable battery temperature regulation system of the present invention.

detailed description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms "first", "second", and "third" are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance. In addition, it should be noted that in the description of the present invention, the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed connections, for example, or It is a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

As shown in FIG. 1, the modular and expandable battery temperature regulation system of the present invention is coupled to a plurality of batteries (shown in FIG. 1, battery 1 - battery N) for independently adjusting the plurality of batteries. temperature. The battery temperature regulation system specifically includes an electronic control system, a coolant circulation pump, a heat exchanger, a coolant storage device, and a piping system, the electronic control system and the heat exchanger and/or the coolant circulation pump Connected to control the operation of the heat exchanger and/or the coolant circulation pump. As shown in FIG. 1, the coolant circulation pump, the heat exchanger, and the coolant storage device are connected in a loop through the piping system. In an embodiment of the invention, the piping system includes a main line and a plurality of branch lines, each of the batteries being disposed on one of the branch lines.

With continued reference to FIG. 1, the electronic control system includes a controller and a plurality of temperature sensors (S shown in FIG. 1), each of which is disposed on one of the branch lines in a one-to-one correspondence with each of the batteries. The temperature sensor detects a temperature of the coolant in the branch line and feeds back a signal to the controller, the controller being capable of being The result of the test is used to control the operation of the coolant circulation pump and/or the heat exchanger. Specifically, when the battery temperature is too high, the controller turns on the coolant circulation pump to circulate the coolant through the battery in the corresponding branch line to remove heat from the battery. At the same time, the controller also opens the heat exchanger, so that the heat-absorbing coolant exchanges heat with the refrigerant in the heat exchanger on the waterway side of the heat exchanger, and thus the temperature of the coolant is lowered, so as to Pumped to the battery in the corresponding branch line by circulation.

With regard to the controller, it should be noted that it can be implemented in any suitable hardware, software, or a combination of hardware and software, and can be any type of controller, such as a combinational logic controller, programmable controller, or the like.

Referring now to Figure 2, Figure 2 is a block diagram of a branch of a modular and expandable battery temperature regulation system of the present invention. As shown in FIG. 2, each of the branch lines is further provided with a flow valve with adjustable opening degree, and the controller is further capable of controlling the opening degree of the flow valve according to the detection result of the temperature sensor, so as to The temperature of the battery determines the amount of coolant flowing through the battery. It will be readily understood by those skilled in the art that such an arrangement enables temperature management to be independently performed for each battery, thereby maximizing the service life of the single battery.

With continued reference to Figure 1, the battery temperature regulation system can also optionally include a heating device disposed in the manifold that is used to heat the coolant when the temperature is too low. For example, when performing a cold start in a cold winter, it is not necessary to cool the battery, but it is necessary to increase the temperature. At this time, the controller can turn off the heat exchanger and simultaneously turn on the heating device and the circulation pump, and the circulation pump causes the heated coolant to flow through the battery of the corresponding branch to raise the temperature of the battery to a working degree.

In a preferred embodiment of the present invention, the battery may be either a power battery of an electric vehicle or a power battery or an energy storage battery on a mobile charging vehicle for charging an electric vehicle. Of course, the battery can also be other types of batteries without departing from the basic principles and scope of the invention.

In a preferred embodiment of the invention, as shown in Figure 1, the coolant is water and the coolant storage device is a water tank. Further, the coolant circulation pump is a circulating water pump. Alternatively, the coolant may be an antifreeze mixture of water and ethylene glycol.

In a preferred embodiment of the present invention, the heat exchanger may include a compressor that compresses the refrigerant by the compressor while cooperating with the condenser (ie, the heat exchanger outdoor side) and the evaporator (ie, the heat exchanger water side) The cooling water is cooled. Of course, being able to The heat exchanger may be in any suitable form, and is not limited to a compressor system, provided that the coolant in the pipeline is cooled.

It can be understood by those skilled in the art that the battery temperature regulation system is connected to a plurality of batteries, and each temperature sensor is disposed on a branch line in a one-to-one correspondence with each battery, and the battery control module and the water channel control are connected in parallel. When it is necessary to expand or reduce the water path that is taken out (if the system capacity allows), simply expand the connector and take the corresponding sensor signal from the controller for measurement, which can be flexibly extended for different applications. And shrinking.

Heretofore, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings, but it is obvious to those skilled in the art that the scope of the present invention is obviously not limited to the specific embodiments. Those skilled in the art can make equivalent changes or substitutions to the related technical features without departing from the principles of the present invention, and the technical solutions after the modifications or replacements fall within the scope of the present invention.

Claims

A modular and expandable temperature regulation system, the temperature adjustment system being coupled to a plurality of objects to be cooled for adjusting a temperature of the plurality of objects to be cooled, the temperature regulation system comprising an electronic control system, a coolant circulation a pump, a heat exchanger, a coolant storage device, and a piping system, the electronic control system being coupled to the heat exchanger and/or the coolant circulation pump, the coolant circulation pump, the heat exchanger, and The coolant storage device is connected into a loop through the pipeline system.

The pipe system includes a main pipe and a plurality of branch pipes, and each of the objects to be cooled is disposed on one of the branch pipes.
A modular and expandable temperature regulation system according to claim 1 wherein said electronic control system includes a controller and a plurality of temperature sensors, each of said temperature sensors being associated with each of said objects to be cooled Correspondingly disposed on one of the branch lines, the temperature sensor detects the temperature of the coolant in the branch line and feeds back a signal to the controller, and the controller can control according to the detection result of the temperature sensor. The operation of the coolant circulation pump and/or the heat exchanger.
The modular and expandable temperature regulation system according to claim 2, wherein each of said branch lines is further provided with an adjustable flow rate valve, said controller being further responsive to said temperature sensor The result of the test is used to control the opening of the flow valve.
A modular, expandable temperature regulation system according to claim 3, wherein said temperature regulation system further comprises heating means disposed in said manifold for said means when the temperature is too low The coolant is heated.
The modular and expandable temperature regulation system according to any one of claims 1 to 4, wherein the object to be cooled is a battery or a PCB main board.
The modular and expandable temperature regulation system according to claim 5, wherein the battery is a power battery of an electric vehicle or a mobile charger for charging an electric vehicle The battery in the tram or substation and the battery in the energy storage device.
The modular and expandable temperature regulation system according to claim 6, wherein the coolant is water or an antifreeze mixture of water and ethylene glycol.
The modular, expandable temperature regulation system of claim 7 wherein said coolant storage device is a water tank or an antifreeze tank.
The modular, expandable temperature regulation system of claim 8 wherein said coolant circulation pump is a circulating water pump.
The modular, expandable temperature regulation system of claim 9 wherein said heat exchanger comprises a compressor.