CN212783591U

CN212783591U - Light logistics vehicle battery thermal management system

Info

Publication number: CN212783591U
Application number: CN202022157743.3U
Authority: CN
Inventors: 丁力岑; 周禛; 徐敏; 刘印; 岳继伟
Original assignee: Jiangsu Bairuian New Energy Technology Co ltd
Current assignee: Jiangsu Bairuian New Energy Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-03-23
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses a light logistics vehicle battery thermal management system, which comprises a refrigerant system and a waterway cooling system; the refrigerant system and the water path cooling system are detachably connected and are used for cooling the battery; the refrigerant system comprises a condenser, a compressor and an expansion valve, wherein an outlet of the compressor is connected to an inlet of the condenser, and an outlet of the condenser is connected to a heat exchanger of the waterway cooling system through the expansion valve; the waterway cooling system also comprises an electronic water pump, an outlet of the electronic water pump is connected to an inlet of the heat exchanger through a first water pipe, an inlet pipe is connected to the inlet of the electronic water pump, and an outlet pipe is connected to the outlet of the heat exchanger; the expansion valve and the heat exchanger form an evaporation module. The utility model discloses the practicality is high, and is with low costs, realizes the unified management of battery, and the radiating efficiency is high, convenient to use.

Description

Light logistics vehicle battery thermal management system

Technical Field

The utility model relates to a battery management specifically is a light-duty commodity circulation car battery thermal management system.

Background

With the rise of global energy crisis and the rising of oil price, new energy automobiles become one of the main directions for the development of automobile industry in recent years. The strong support and promotion of governments and industrial competition and cooperation lay a certain foundation for the development of new energy automobiles in China. The importance of the battery as the only source of power of the electric vehicle is self-evident, and the heat management device of the battery is very important in order to improve the overall performance of the battery and solve the problem of heat dissipation or thermal runaway caused by the operation of the battery under the condition of overhigh temperature.

The heat management product of the light logistics electric automobile in the market at present has high space occupancy rate, heavy weight and high cost, and has certain influence on the endurance mileage of the automobile. Therefore, battery thermal management for light-duty logistics electric vehicles is more important.

SUMMERY OF THE UTILITY MODEL

For solving the defect of above-mentioned prior art, the utility model provides a light-duty commodity circulation car battery thermal management system, the utility model discloses the practicality is high, and is with low costs, realizes the unified management of battery, and the radiating efficiency is high, convenient to use.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: a battery thermal management system of a light logistics vehicle comprises a refrigerant system and a waterway cooling system; the refrigerant system and the water path cooling system are detachably connected and are used for cooling the battery;

the refrigerant system comprises a condenser, a compressor and an expansion valve, wherein an outlet of the compressor is connected to an inlet of the condenser, and an outlet of the condenser is connected to a heat exchanger of the waterway cooling system through the expansion valve;

the waterway cooling system also comprises an electronic water pump, an outlet of the electronic water pump is connected to an inlet of the heat exchanger through a first water pipe, an inlet pipe is connected to the inlet of the electronic water pump, and an outlet pipe is connected to the outlet of the heat exchanger;

the expansion valve and the heat exchanger form an evaporation module.

Further, the device also comprises a controller, wherein the controller is in control connection with the expansion valve.

Further, the temperature sensor and the pressure sensor are both electrically connected with the controller.

Further, temperature sensor includes first temperature sensor and second temperature sensor, first temperature sensor installs on the inlet tube, second temperature sensor installs on the outlet pipe.

Further, the pressure sensor includes a first pressure sensor installed on an outlet of the condenser and a second pressure sensor installed on an inlet of the compressor.

Further, the pressure range of the first pressure sensor is greater than the pressure range of the second pressure sensor.

Further, a first outlet of the expansion valve is connected to an inlet of the heat exchanger through a first refrigerant pipeline, an outlet of the compressor is connected to an inlet of the condenser through a third refrigerant pipeline, and an outlet of the condenser is connected to a first inlet of the expansion valve through a second refrigerant pipeline.

Further, the water inlet pipe is connected to an inlet of the electronic water pump through a third water pipe, and an outlet of the heat exchanger is connected to the water outlet pipe through a second water pipe.

Furthermore, the compressor is arranged on one side of the condenser, the heat exchanger is arranged on the side surface of the outlet end of the compressor, which is far away from the condenser, the water inlet and the water outlet of the heat exchanger are arranged outwards, and the expansion valve is arranged at the end part of the heat exchanger, which is far away from the water inlet and the water outlet; the electronic water pump is arranged at the outlet end of the compressor, and the width of the condenser spans the total length of the compressor and the electronic water pump.

Further, the sealing device further comprises a sealing block, two sealing rings are arranged between the sealing block and the pipe, the end part of the pipe extends into the sealing block and is provided with two annular grooves, and the sealing rings are arranged in the annular grooves.

To sum up, the utility model discloses following technological effect has been gained:

1. the utility model adopts the modular design, the refrigerant system and the waterway system can be split and combined according to different vehicle types and battery capacities, and the use is convenient, the adaptability is good, and the operation is convenient;

2. the utility model cools the battery through the refrigerant system and the water path cooling system, when the battery is charged quickly or the ambient temperature is high, the heat generated by the battery is large, the refrigerant system is matched with the water path loop through the heat exchanger to dissipate the heat of the battery, and the heat dissipation performance is high; the water cooling efficiency is high, so that the heat dissipation requirement of the battery in the rapid charging process or at high ambient temperature is completely met;

3. the utility model integrates the coolant system and the water path cooling system of the battery radiator in the battery heat management system into a box body and is controlled by the same controller, thereby realizing the unified management of the batteries, saving the installation space, having obvious energy-saving effect, simple and feasible structural design and easy realization;

4. the utility model arranges the sealing block at the joint of each pipeline and the equipment, and utilizes double-groove sealing to increase the sealing performance and ensure that the leakage can not occur;

5. the utility model discloses effectively reduced the host computer factory and purchase the cost, increased substantially economy, social have very strong practicality.

Drawings

Fig. 1 is a schematic view of a combination of two systems provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a refrigerant system;

FIG. 3 is a schematic view of a water circuit cooling system;

FIG. 4 is a schematic view of a sealing block double groove seal configuration.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1, the battery thermal management system of the light logistics vehicle comprises a refrigerant system and a water path cooling system, and the two systems are combined with each other to cool the battery, so that the cooling is better. The refrigerant system and the water path cooling system are detachably connected and are used for cooling the battery.

Further, as shown in fig. 2, the refrigerant system includes a condenser 2, a compressor 5, and an expansion valve 17, an outlet of the compressor 5 is connected to an inlet of the condenser 2, and an outlet of the condenser 2 is connected to an inlet of the upper heat exchanger 4 of the water cooling system through the expansion valve 17. Specifically, a first outlet of the expansion valve 17 is connected to an inlet of the heat exchanger 4 through a first refrigerant pipeline 7, an outlet of the compressor 5 is connected to an inlet of the condenser 2 through a third refrigerant pipeline 9, an outlet of the condenser 2 is connected to a first inlet of the expansion valve 17 through a second refrigerant pipeline 8, a refrigerant loop is formed, and the refrigerant loop is arranged in a modularized mode, so that the overall installation is facilitated.

Further, as shown in fig. 3, the waterway cooling system includes an electronic water pump 3 and a chiller heat exchanger 4, an outlet of the electronic water pump 3 is connected to an inlet of the heat exchanger 4 through a first water pipe 10, an inlet of the electronic water pump 3 is connected to a water inlet pipe 18, and an outlet of the heat exchanger 4 is connected to a water outlet pipe 19. Specifically, the water inlet pipe 18 is connected to the inlet of the electronic water pump 3 through the third water pipe 12, the outlet of the heat exchanger 4 is connected to the water outlet pipe 19 through the second water pipe 11, a water cooling loop is formed, and the modularized arrangement is adopted, so that the integral installation is facilitated.

In this embodiment, refrigerant system and water route cooling system all use the modularized design for can be random between two systems dismantle the use and use with the combination, select suitable compound mode according to battery power, convenient to use, easy operation.

Further, as shown in fig. 3, the expansion valve 17 is connected to the heat exchanger 4 through the first refrigerant pipeline 7, so that the expansion valve 17 controls the refrigerant medium delivered from the compressor 5 to the heat exchanger 4.

In addition, the expansion valve 17 and the heat exchanger 4 form an evaporation module, so that the use of an extra evaporator is saved, the installation space is saved, and the evaporation module is distributed in two cooling systems to realize unified management.

In addition, a controller (not shown) is further included for controlling the operation of the coolant system and the water cooling system. The controller is connected with the expansion valve 17 in a control mode and used for controlling the opening degree of the expansion valve 17, and one controller is used for controlling the loops of the two cooling systems, so that the use of the controller is saved, the unified management of batteries is realized, and the installation space is saved. In this embodiment, the expansion valve is an H-type electronic expansion valve.

And the temperature sensor and the pressure sensor are both electrically connected with the controller and are used for transmitting the temperature and the pressure on the two loops to the controller, so that the controller can control the opening degree of the expansion valve conveniently. The temperature sensor and the pressure sensor can be of the types which are universal in the market, and the specific types are not limited.

Specifically, as shown in fig. 1, the temperature sensor includes a first temperature sensor 15 and a second temperature sensor 16, the first temperature sensor 15 is mounted on the water inlet pipe 18, and the second temperature sensor 16 is mounted on the water outlet pipe 19 for sensing the temperature of the cooling liquid.

Specifically, as shown in fig. 1, the pressure sensor includes a first pressure sensor 13 and a second pressure sensor 14, the first pressure sensor 13 is installed at an outlet of the condenser 2, and the second pressure sensor 14 is installed at an inlet of the compressor 5 for sensing a pressure in the refrigerant system. The pressure range of the first pressure sensor 13 is greater than the pressure range of the second pressure sensor 14, that is, the first pressure sensor 13 is a high-pressure sensor, and the second pressure sensor 14 is a low-pressure sensor.

In addition, an electronic fan 1 is further arranged on one side face of the condenser 2, the electronic fan 1 is in signal connection with the controller, the electronic fan 1 automatically adjusts the rotating speed of the electronic fan according to the temperature of the cooling liquid of the radiator and the pressure of a refrigerant system, and the rotating speed control mode is PWM control.

In this embodiment, the control mode of the compressor 5 is CAN control, and the rotation speed of the compressor is adjusted according to the water temperature and the pressure of the refrigerant system. In the embodiment, the model of the compressor is GEV27-580 VHL.

As shown in fig. 1, the compressor 5 is arranged at one side of the condenser 2, the heat exchanger 4 is arranged at the side of the outlet end of the compressor 5 far away from the condenser 2, the water inlet and outlet of the heat exchanger 4 are arranged outwards, and the expansion valve 17 is arranged at the end of the heat exchanger 4 far away from the water inlet and outlet; the electronic water pump 3 is arranged at the outlet end of the compressor 5, and the width of the condenser 2 spans the total length of the compressor 5 and the electronic water pump 3. In this embodiment, with refrigerant system and water route cooling system inter combination, adopt detachable connection between refrigerant system and the water route cooling system, water route cooling system passes through first water pipe 10, second water pipe 11 dismantlement formula and connects on heat exchanger 4 promptly, and when battery power is great, the heat is higher, adopts the great water route cooling system of water pump power, and when battery power is less, the heat is not high, adopts the less water route cooling system of water pump power.

As shown in fig. 4, the sealing block 20 is further included, and in the connection between the above-mentioned pipes, water pipes and various devices, sealing is achieved by the sealing block 20. Specifically, as shown in fig. 4, taking the connection between the condenser 2 and the second refrigerant pipeline 8 as an example, the end of the second refrigerant pipeline 8 extends into the sealing block 20, the end of the second refrigerant pipeline 8 is provided with two annular grooves 21, and the sealing ring 22 is placed in the annular groove 21 to form a double-groove seal, so that the sealing performance is enhanced, and the joint is ensured not to leak. Other joints are the same as the structure, so that the use safety of the whole system is ensured.

Based on the practical experience and professional knowledge which are abundant for many years when the company is engaged in the design and manufacture of the products, the company actively carries out research and innovation by matching with the application of the theory, creates a low-cost modular battery thermal management system for the light logistics vehicle, and has higher practicability, economy and value.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a light-duty commodity circulation car battery thermal management system which characterized in that: comprises a refrigerant system and a waterway cooling system; the refrigerant system and the water path cooling system are detachably connected and are used for cooling the battery;

the refrigerant system comprises a condenser (2), a compressor (5) and an expansion valve (17), wherein an outlet of the compressor (5) is connected to an inlet of the condenser (2), and an outlet of the condenser (2) is connected to a heat exchanger (4) of the waterway cooling system through the expansion valve (17);

the waterway cooling system further comprises an electronic water pump (3), an outlet of the electronic water pump (3) is connected to an inlet of the heat exchanger (4) through a first water pipe (10), an inlet of the electronic water pump (3) is connected with a water inlet pipe (18), and an outlet of the heat exchanger (4) is connected with a water outlet pipe (19);

the expansion valve (17) and the heat exchanger (4) form an evaporation module.

2. The light logistics vehicle battery thermal management system of claim 1, wherein: the device also comprises a controller, wherein the controller is in control connection with the expansion valve (17).

3. The light logistics vehicle battery thermal management system of claim 2, wherein: the temperature sensor and the pressure sensor are electrically connected with the controller.

4. The light logistics vehicle battery thermal management system of claim 3, wherein: the temperature sensor comprises a first temperature sensor (15) and a second temperature sensor (16), the first temperature sensor (15) is installed on the water inlet pipe (18), and the second temperature sensor (16) is installed on the water outlet pipe (19).

5. The light logistics vehicle battery thermal management system of claim 3, wherein: the pressure sensors comprise a first pressure sensor (13) and a second pressure sensor (14), the first pressure sensor (13) being mounted on the outlet of the condenser (2), the second pressure sensor (14) being mounted on the inlet of the compressor (5).

6. The light logistics vehicle battery thermal management system of claim 5, wherein: the pressure range of the first pressure sensor (13) is greater than the pressure range of the second pressure sensor (14).

7. The light logistics vehicle battery thermal management system of claim 1, wherein: a first outlet of the expansion valve (17) is connected to an inlet of the heat exchanger (4) through a first refrigerant pipeline (7), an outlet of the compressor (5) is connected to an inlet of the condenser (2) through a third refrigerant pipeline (9), and an outlet of the condenser (2) is connected to a first inlet of the expansion valve (17) through a second refrigerant pipeline (8).

8. The light logistics vehicle battery thermal management system of claim 1, wherein: the water inlet pipe (18) is connected to the inlet of the electronic water pump (3) through a third water pipe (12), and the outlet of the heat exchanger (4) is connected to the water outlet pipe (19) through a second water pipe (11).

9. The light logistics vehicle battery thermal management system as set forth in any one of claims 1-8, wherein: the compressor (5) is arranged on one side of the condenser (2), the heat exchanger (4) is arranged on the side surface of the outlet end of the compressor (5) far away from the condenser (2), the water inlet and the water outlet of the heat exchanger (4) are arranged outwards, and the expansion valve (17) is arranged on the end part of the heat exchanger (4) far away from the water inlet and the water outlet; the electronic water pump (3) is arranged at the outlet end of the compressor (5), and the width of the condenser (2) spans the total length of the compressor (5) and the electronic water pump (3).

10. The light logistics vehicle battery thermal management system of claim 9, wherein: still include sealed piece (20), be equipped with two sealing washer (22) between sealed piece (20) and the pipe, the tip of pipe stretches into sealed piece (20) inside and seted up two ring channel (21), sealing washer (22) are arranged in ring channel (21).