CN210838017U

CN210838017U - Temperature management system of lithium ion battery pack

Info

Publication number: CN210838017U
Application number: CN201921288267.XU
Authority: CN
Inventors: 查文斌
Original assignee: Guizhou Mairui New Energy Technology Co ltd
Current assignee: Guizhou Mairui New Energy Technology Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-06-23
Anticipated expiration: 2029-08-09

Abstract

The utility model discloses a temperature management system of lithium ion battery pack, including automatic grid, temperature sensor and central controller, the automatic grid is installed in the air intake, automatic grid and central controller electric connection, the rear end of air intake is installed the air exhauster, air exhauster and central controller electric connection, the place ahead of air intake pipe is provided with the first switch, the first switch and central controller electric connection, the rear of exhaust pipe is provided with the second switch, the second switch and central controller electric connection; the temperature sensor is arranged in the battery pack; and a third switch is arranged at one end of the water inlet pipe close to the air inlet pipe and is electrically connected with the central controller. The utility model discloses safe in utilization, energy-concerving and environment-protective, through with the same cooling tube of forced air cooling and water-cooling sharing, reduced the quantity of arranging of the inside cooling tube of group battery, when normal use forced air cooling dispels the heat, the cooling water can not persist in the group battery, has improved the security of group battery.

Description

Temperature management system of lithium ion battery pack

Technical Field

The utility model relates to a temperature management system specifically is a temperature management system of lithium ion battery group.

Background

In recent years, the country pays more and more attention to environmental protection, the development of new energy technology is accelerated, with the development of nuclear power, wind power and hydropower, electric energy has the advantages of cleanness and reproducibility compared with the traditional energy, therefore, many automobiles begin to use electric energy as a power source, the power energy storage battery widely used at present is a lithium ion battery, and the lithium ion battery has the advantages of high monomer voltage, large specific energy, long cycle life, high charging and discharging speed and the like, so that the use requirement of the power battery for the automobile is met, but the use performance of the lithium ion battery is greatly influenced by temperature, and danger is easy to occur when the temperature is overhigh.

At present, the heat dissipation mode that lithium ion battery group was used commonly is mainly two kinds with wind-cooling and water-cooling, and the wind-cooling has advantages such as simple structure, security height, but heat dispersion is relatively poor, and the water-cooling has advantages such as the radiating rate is fast, compact structure, but the cooling water persists in the group battery and takes place danger easily, consequently urgently needed a safe efficient lithium ion battery group temperature management system.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature management system of lithium ion battery group to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a temperature management system of a lithium ion battery pack comprises an automatic grille, a temperature sensor and a central controller, wherein the automatic grille is arranged in an air inlet and is electrically connected with the central controller; the temperature sensor is arranged in the battery pack and is electrically connected with the central controller; the rear of air-supply line is connected with the inlet tube, and the one end that the inlet tube is close to the air-supply line is provided with the third switch, third switch and central controller electric connection, first water pump and central controller electric connection, and the place ahead of exhaust pipe is connected with the drain pipe, and the one end that the drain pipe is close to the exhaust pipe is provided with the fourth switch, fourth switch and central controller electric connection.

As a further aspect of the present invention: the first radiating pipe is installed in the battery pack, and a heat conduction material is coated between the first radiating pipe and the battery pack.

As a further aspect of the present invention: a heat conduction plate is arranged between the temperature sensor and the battery pack, and a heat conduction material is coated between the heat conduction plate and the battery pack.

As a further aspect of the present invention: the water tank is connected with the second cooling tube, is provided with the second water pump between the water inlet of second cooling tube and the water tank, second water pump and central controller electric connection.

Compared with the prior art, the utility model discloses safe in utilization, energy-concerving and environment-protective, through setting up automatic grid, can be when group battery low temperature, block cold wind's entering, make the group battery heat up to suitable temperature as early as possible, through with the same cooling tube of forced air cooling and water-cooling sharing, the quantity of arranging of the inside cooling tube of group battery has been reduced, when the heat dissipation of normal use forced air cooling, the cooling water can not persist in the group battery, the security of group battery has been improved, through set up the heat-conducting plate between temperature sensor and group battery, avoid the local overheat of group battery, and temperature sensor can not detect, the accuracy and the wholeness that improve the temperature and.

Drawings

Fig. 1 is a block diagram of a temperature management system for a lithium ion battery pack.

Fig. 2 is a front left view of a temperature management system mounting structure of a lithium ion battery pack.

Fig. 3 is a front right view of a temperature management system mounting structure of a lithium ion battery pack.

Fig. 4 is a plan view of a temperature management system mounting structure of a lithium ion battery pack.

Fig. 5 is a left side view of a temperature management system mounting structure of a lithium ion battery pack.

In the figure: 1. an automatic grill; 2. an air inlet; 3. an exhaust fan; 4. an air inlet pipe; 5. a first switch; 6. a first radiating pipe; 7. an exhaust duct; 8. a second switch; 9. a heat conducting plate; 10. a temperature sensor; 11. a water inlet pipe; 12. a third switch; 13. a first water pump; 14. a drain pipe; 15. a fourth switch; 16. a water tank; 17. a second heat dissipation pipe; 18. a second water pump; 19. a central controller.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-5, a temperature management system for a lithium ion battery pack includes an automatic grid 1, a temperature sensor 10, and a central controller 19; automatic grid 1 installs in air intake 2, air intake 2 installs at the automobile body front end, automatic grid 1 is used for controlling opening and shutting of air intake 2 big or small,

automatic grid

1 and 19 electric connection of central controller, air exhauster 3 is installed to the rear end of air intake 2,

air exhauster

3 and 19 electric connection of central controller, the rear end of air exhauster 3 is provided with air-supply line 4, the place ahead of air-supply line 4 is provided with first switch 5,

first switch

5 and 19 electric connection of central controller, the rear end and the first cooling tube 6 of air-supply line 4 are connected, first cooling tube 6 is installed in the group battery, the coating has the heat conduction material between first cooling tube 6 and the group battery, first cooling tube 6 can absorb the heat in the group battery, the rear end of first cooling tube 6 is provided with exhaust pipe 7, the rear of exhaust pipe 7 is provided with second switch 8,

second switch

8 and 19 electric connection of central controller.

Temperature sensor 10 sets up in the group battery, and temperature sensor 10 and central controller 19 electric connection are provided with heat-conducting plate 9 between temperature sensor 10 and the group battery, and the coating has the heat conduction material between heat-conducting plate 9 and the group battery, and heat-conducting plate 9 can improve temperature sensor 10's detection range, avoids the local overheat of group battery.

The rear of intake pipe 4 is connected with inlet tube 11, the one end that inlet tube 11 is close to intake pipe 4 is provided with third switch 12, third switch 12 and central controller 19 electric connection, the other end and the first water pump 13 of inlet tube 11 are connected, the water inlet and the water tank 16 of first water pump 13 are connected, first water pump 13 and central controller 19 electric connection, the place ahead of exhaust pipe 7 is connected with drain pipe 14, the one end that drain pipe 14 is close to exhaust pipe 7 is provided with fourth switch 15, fourth switch 15 and central controller 19 electric connection, the other end and the water tank 16 of drain pipe 14 are connected.

The water tank 16 is connected with a second radiating pipe 17 for radiating heat for the water tank 16, a second water pump 18 is arranged between the water inlet of the second radiating pipe 17 and the water tank 16, and the second water pump 18 is electrically connected with a central controller 19.

The utility model discloses in the use: the temperature sensor 10 can detect the temperature of the battery pack in real time and send temperature information to the central controller 19, the central controller 19 controls the operation of the whole system according to the temperature information, when the temperature of the battery pack is too low, the central controller 19 controls the automatic grille 1 to close to block cold air from entering, so as to accelerate the temperature rise of the battery pack, along with the change of the temperature of the battery pack, the opening degree of the automatic grille 1 is controlled, so that the cold air enters the first radiating pipe 6 through the air inlet 2 to properly radiate the battery pack, when the vehicle speed is too low and the air inlet quantity is insufficient, the central controller 19 controls the exhaust fan 3 to start to blow the cold air into the first radiating pipe 6 to radiate the battery pack, when the temperature of the battery pack continuously rises and the air cooling cannot meet the radiating requirement, the central controller 19 controls the automatic grille 1, the exhaust fan 3, the first switch 5 and the, controlling the third switch 12, the fourth switch 15, the first water pump 13 and the second water pump 18 to be turned on, the first water pump 13 pumps cooling water in the water tank 16 to enter the first radiating pipe 6 through the water inlet pipe 11 to radiate heat to the battery pack and then to flow into the water tank 16 through the water outlet pipe 14, the second water pump 18 can pump hot water in the water tank 16 to the second radiating pipe 17 to radiate heat, when the temperature of the battery pack is reduced, the central controller 19 firstly turns off the first water pump 13, the second water pump 18 and the third switch 12, then turns on the exhaust fan 3, the automatic grill 1 and the first switch 5 to blow air into the first radiating pipe 6, blows cooling water in the first radiating pipe 6 into the water tank 16 through the water outlet pipe 14, then turns off the fourth switch 15, and turns on the second switch 8 to radiate heat again by using cold air.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A temperature management system of a lithium ion battery pack comprises an automatic grille (1), a temperature sensor (10), a water tank (16) and a central controller (19), and is characterized in that the automatic grille (1) is installed in an air inlet (2), the automatic grille (1) is electrically connected with the central controller (19), an exhaust fan (3) is installed at the rear end of the air inlet (2), the exhaust fan (3) is electrically connected with the central controller (19), an air inlet pipe (4) is arranged at the rear end of the exhaust fan (3), a first switch (5) is arranged in front of the air inlet pipe (4), the first switch (5) is electrically connected with the central controller (19), the rear end of the air inlet pipe (4) is connected with a first radiating pipe (6), an air exhaust pipe (7) is arranged at the rear end of the first radiating pipe (6), a second switch (8) is arranged at the rear end of the air exhaust pipe (7), the second switch (8) is electrically connected with the central controller (19); the temperature sensor (10) is arranged in the battery pack, and the temperature sensor (10) is electrically connected with the central controller (19); the rear of air-supply line (4) is connected with inlet tube (11), and the one end that inlet tube (11) are close to air-supply line (4) is provided with third switch (12), third switch (12) and central controller (19) electric connection, first water pump (13) and central controller (19) electric connection, the place ahead of exhaust pipe (7) is connected with drain pipe (14), and the one end that drain pipe (14) are close to exhaust pipe (7) is provided with fourth switch (15), fourth switch (15) and central controller (19) electric connection.

2. The temperature management system of a lithium ion battery pack as claimed in claim 1, wherein the first heat dissipation pipe (6) is installed in the battery pack, and a heat conduction material is coated between the first heat dissipation pipe (6) and the battery pack.

3. The system for managing the temperature of a lithium ion battery pack according to claim 1, wherein a heat conducting plate (9) is arranged between the temperature sensor (10) and the battery pack, and a heat conducting material is coated between the heat conducting plate (9) and the battery pack.

4. The temperature management system of the lithium ion battery pack as claimed in claim 1, wherein the water tank (16) is connected with a second heat dissipation pipe (17), a second water pump (18) is arranged between the water inlet of the second heat dissipation pipe (17) and the water tank (16), and the second water pump (18) is electrically connected with the central controller (19).