CN216958183U

CN216958183U - Lithium battery pack with charging protection structure

Info

Publication number: CN216958183U
Application number: CN202220425163.4U
Authority: CN
Inventors: 李珍
Original assignee: Shenzhen Changxingda New Energy Co ltd
Current assignee: Shenzhen Changxingda New Energy Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-07-12
Anticipated expiration: 2032-03-01

Abstract

The utility model discloses a lithium battery pack with a charging protection structure, which comprises a box body, wherein a water tank is arranged on the inner wall of the bottom of the box body, a water pump is fixedly connected with the inner wall of the top of the water tank, a heat dissipation plate is fixedly connected to the left surface of the water tank, a drainage groove is fixedly connected to the inner surface of the box body, a battery is fixedly connected to the outer surface of the drainage groove, and a second electromagnetic valve is fixedly connected to the left surface of the box body. According to the utility model, by designing the circuit breaking device, the device can be placed obliquely and generate large shaking in the charging process, the device can automatically perform power-off protection, the use safety of the device is improved, the device can be cooled by designing the water tank and the electromagnetic valve, the safety of the device is improved, and by designing the first electromagnetic valve and the second electromagnetic valve, the moisture in the drainage groove can be evaporated through the residual heat of the battery, so that the harm caused by water leakage can be avoided under the condition of meeting the cooling requirement.

Description

Lithium battery pack with charging protection structure

Technical Field

The utility model relates to the field of lithium batteries, in particular to a lithium battery pack with a charging protection structure.

Background

The battery is a battery using a non-aqueous electrolyte solution using lithium metal or a lithium alloy as a negative electrode material, and thus, this battery is also called a lithium metal battery, which has characteristics of high charge density, long life, high unit cost, and the like unlike other batteries, and can generate a voltage of 1.5V to 3.7V depending on a structural design and an electrode material. Along with the call of environmental protection science and technology, the appearance of electric motor car is more and more, and a plurality of lithium cell group of current electric motor car constitutes together one lithium cell group to this carries out a large amount of power supplies.

Some existing lithium battery packs with charging protection structures have the following defects:

1. currently, the lithium battery pack moves a battery in a charging process, so that the battery can explode;

2. at present, the lithium battery pack can generate an overheating phenomenon in the charging process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a lithium battery pack with a charging protection structure.

In order to achieve the purpose, the utility model adopts the following technical scheme: a lithium battery pack with a charging protection structure comprises a box body, wherein a water tank is arranged on the inner wall of the bottom of the box body, a water pump is fixedly connected with the inner wall of the top of the water tank, a heat dissipation plate is fixedly connected with the left surface of the water tank, a drainage groove is fixedly connected with the inner surface of the box body, and a battery is fixedly connected with the outer surface of the drainage groove;

the left surface of the box body is fixedly connected with a second electromagnetic valve, the right surface of the box body is fixedly connected with a first electromagnetic valve, the bottom inner wall of the box body is fixedly connected with a circuit breaking device, and the right surface of the circuit breaking device is fixedly connected with a first lead.

As a further description of the above technical solution:

the input fixedly connected with pipe of water pump, the output of water pump extends to the inside in drainage groove.

As a further description of the above technical solution:

the battery array distributes, the output fixedly connected with third solenoid valve of water pump.

As a further description of the above technical solution:

the second electromagnetic valve is communicated with the drainage groove.

As a further description of the above technical solution:

the circuit breaking device comprises a base, a first conducting ring, a metal ball, a second conducting ring, a current meter and a control device.

As a further description of the above technical solution:

the base is fixedly connected with the box body, a groove is formed in the upper surface of the base, and the groove is arc-shaped.

As a further description of the above technical solution:

the inner surface of the groove is fixedly connected with a first conducting ring and a second conducting ring, the distance between the first conducting ring and the second conducting ring is the same as the diameter of the metal ball, the ammeter is electrically connected with the first conducting ring and the second conducting ring respectively, the ammeter is electrically connected with a control device, and the control device is electrically connected with the first conducting wire.

As a further description of the above technical solution:

the right surface of the first lead is fixedly connected with a charging port, the left surface of the circuit breaking device is fixedly connected with a second lead, and one end, far away from the circuit breaking device, of the second lead is electrically connected with the battery.

The utility model has the following beneficial effects:

1. compared with the prior art, this lithium cell group with protection architecture that charges through design breaker, realizes that the device places and produces great rocking at the in-process that charges in the slope, and the device can carry out the power-off protection voluntarily, increases the security that the device used.

2. Compared with the prior art, this lithium cell group with protection architecture that charges through design water tank, solenoid valve, realizes can cooling down the device, increases the security of device.

3. Compared with the prior art, this lithium cell group with protection architecture that charges through designing first solenoid valve and second solenoid valve, realizes accomplishing the moisture evaporation of drainage inslot portion at the waste heat that can pass through the battery, satisfies under the condition of cooling, can avoid leaking the harm that produces.

Drawings

Fig. 1 is a schematic diagram illustrating an internal structure of a lithium battery pack with a charge protection structure according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is a schematic diagram of an overall structure of a lithium battery pack with a charge protection structure according to the present invention.

Illustration of the drawings:

1. a box body; 2. a charging port; 3. a first conductive line; 4. a circuit breaking device; 5. a first conductive ring; 6. a groove; 7. a metal ball; 8. a second conductive ring; 9. a battery; 10. a drainage groove; 11. a first solenoid valve; 12. a second solenoid valve; 13. a heat dissipation plate; 14. a conduit; 15. a water pump; 16. a second conductive line; 17. an ammeter; 18. and a control device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting 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, and furthermore, unless otherwise explicitly stated 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides a lithium battery pack with a charge protection structure: including box 1, the end inner wall of box 1 is provided with the water tank, be used for the water storage, the top inner wall fixedly connected with water pump 15 of water tank, be used for the hydrologic cycle, water pump 15's input fixedly connected with pipe 14, water pump 15's output extends to the inside of drainage groove 10, the left surface fixedly connected with heating panel 13 of water tank, the internal surface fixedly connected with drainage groove 10 of box 1, be used for the cooling, and when single battery 9 damaged, protect battery 9, the outer fixed surface of drainage groove 10 is connected with battery 9, battery 9 array distribution, water pump 15's output fixedly connected with third solenoid valve, be used for avoiding rivers to flow in the battery 9 use.

The left surface of the box body 1 is fixedly connected with a second electromagnetic valve 12 used for air flow circulation, the second electromagnetic valve 12 is communicated with a drainage groove 10, the other end of the drainage groove 10 extends into the water tank and is provided with a fourth electromagnetic valve, the right surface of the box body 1 is fixedly connected with a first electromagnetic valve 11 used for air flow, the bottom inner wall of the box body 1 is fixedly connected with a circuit breaking device 4 used for increasing the safety of a battery 9, the circuit breaking device 4 comprises a base, a first conductive ring 5, a metal ball 7, a second conductive ring 8, an ammeter 17 and a control device 18, the base is fixedly connected with the box body 1, the upper surface of the base is provided with a groove 6, the groove 6 is arc-shaped and can be automatically reset for the metal ball 7, the inner surface of the groove 6 is fixedly connected with the first conductive ring 5 and the second conductive ring 8, the distance between the first conductive ring 5 and the second conductive ring 8 is the same as the diameter of the metal ball 7, the metal ball 7 can be connected with an ammeter 17 when being deviated, the ammeter 17 is respectively electrically connected with a first conducting ring 5 and a second conducting ring 8, the ammeter 17 is electrically connected with a control device 18, the control device 18 is electrically connected with a first conducting wire 3, the right surface of the circuit breaking device 4 is fixedly connected with the first conducting wire 3, the right surface of the first conducting wire 3 is fixedly connected with a charging port 2, the left surface of the circuit breaking device 4 is fixedly connected with a second conducting wire 16, and one end, far away from the circuit breaking device 4, of the second conducting wire 16 is electrically connected with a battery 9.

The working principle is as follows: place the device and charge at the smooth subaerial, when the device unevenness, or rock at the in-process production that charges, then metal ball 7 can produce in recess 6 and remove, and switch on two conducting rings, the conducting ring switches on with ampere meter 17, the threshold value that reaches the electric current can make the 3 outage of controlling means 18 control first wire, thereby avoid producing harm, water pump 15 opens when charging, first solenoid valve 11 closes with second solenoid valve 12, rivers dispel the heat through the heating panel 13 at drainage groove 10 mesocycle, will close the third solenoid valve when the power is full of soon, make rivers go out drainage groove 10, and open first solenoid valve 11 and second solenoid valve 12, evaporate the inside moisture in drainage groove 10, increase the security of device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a lithium cell group with protection architecture charges, includes box (1), its characterized in that: a water tank is arranged on the inner wall of the bottom of the tank body (1), a water pump (15) is fixedly connected to the inner wall of the top of the water tank, a heat dissipation plate (13) is fixedly connected to the left surface of the water tank, a drainage groove (10) is fixedly connected to the inner surface of the tank body (1), and a battery (9) is fixedly connected to the outer surface of the drainage groove (10);

the left surface of the box body (1) is fixedly connected with a second electromagnetic valve (12), the right surface of the box body (1) is fixedly connected with a first electromagnetic valve (11), the bottom inner wall of the box body (1) is fixedly connected with a circuit breaking device (4), and the right surface of the circuit breaking device (4) is fixedly connected with a first lead (3).

2. A lithium battery pack with a charge protection architecture in accordance with claim 1, wherein: the input end of the water pump (15) is fixedly connected with a guide pipe (14), and the output end of the water pump (15) extends to the inside of the drainage groove (10).

3. The lithium battery pack with the charge protection structure according to claim 1, wherein: the batteries (9) are distributed in an array mode, and the output end of the water pump (15) is fixedly connected with a third electromagnetic valve.

4. The lithium battery pack with the charge protection structure according to claim 1, wherein: the second electromagnetic valve (12) is communicated with the drainage groove (10).

5. The lithium battery pack with the charge protection structure according to claim 1, wherein: the circuit breaking device (4) comprises a base, a first conducting ring (5), a metal ball (7), a second conducting ring (8), a current meter (17) and a control device (18).

6. The lithium battery pack with the charge protection structure according to claim 5, wherein: the base is fixedly connected with the box body (1), a groove (6) is formed in the upper surface of the base, and the groove (6) is arc-shaped.

7. The lithium battery pack with the charge protection structure according to claim 6, wherein: the inner surface of the groove (6) is fixedly connected with a first conducting ring (5) and a second conducting ring (8), the distance between the first conducting ring (5) and the second conducting ring (8) is the same as the diameter of the metal ball (7), the ammeter (17) is electrically connected with the first conducting ring (5) and the second conducting ring (8) respectively, the ammeter (17) is electrically connected with a control device (18), and the control device (18) is electrically connected with the first lead (3).

8. The lithium battery pack with the charge protection structure according to claim 1, wherein: the right surface of the first lead (3) is fixedly connected with a charging port (2), the left surface of the circuit breaking device (4) is fixedly connected with a second lead (16), and one end, far away from the circuit breaking device (4), of the second lead (16) is electrically connected with a battery (9).