CN215578857U

CN215578857U - Explosion-proof packaging structure of lithium ion battery

Info

Publication number: CN215578857U
Application number: CN202120063776.3U
Authority: CN
Inventors: 朱远方
Original assignee: Jiangsu Sanzheng New Energy Co ltd
Current assignee: Jiangsu Sanzheng New Energy Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2022-01-18
Anticipated expiration: 2031-01-11

Abstract

The utility model belongs to the technical field of battery explosion-proof packaging, and discloses an explosion-proof packaging structure of a lithium ion battery. This lithium ion battery's explosion-proof packaging structure, including the lithium cell outer container, the upper surface swing joint of lithium cell outer container has the case lid, positive terminal and negative pole end have been cup jointed to the case lid, just the negative pole end is located the left side of positive terminal, the case lid has cup jointed rubber circle one, the left and right sides fixedly connected with case lid handle of case lid, the left and right sides of lithium cell outer container is firmly through articulated piece fixedly connected with outer container handle, the middle part of lithium cell outer container is provided with the exhaust hole. This lithium ion battery's explosion-proof packaging structure utilizes a plurality of exhaust holes can release internal pressure fast, makes inside and outside pressure unanimous, prevents the lithium ion battery explosion that internal pressure is too high to cause.

Description

Explosion-proof packaging structure of lithium ion battery

Technical Field

The utility model relates to the technical field of battery explosion-proof packaging, in particular to an explosion-proof packaging structure of a lithium ion battery.

Background

The lithium ion battery has the advantages of high working voltage, high specific energy, wide use temperature range and the like, is an indispensable daily necessity in daily life, and can provide electric power by being small as a remote controller and large as a new energy automobile without being opened. For this reason, when the battery is in use, abnormal conditions such as short circuit, overcharge, overdischarge, etc. occur, a large amount of gas is generated inside the battery, resulting in a rapid increase in the internal pressure of the battery, causing a risk of deformation or even explosion of the battery case.

The traditional lithium battery has the defects that the temperature is too high when the lithium battery is used, the internal temperature is difficult to reduce, the pressure intensity is increased due to the internal high temperature, and the internal and external pressure intensities are difficult to quickly reach the same intensity, so that the explosion is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an explosion-proof packaging structure of a lithium ion battery, which can solve the problem of explosion caused by high internal pressure and high temperature.

In order to achieve the purpose, the utility model is realized by the following technical scheme: an explosion-proof packaging structure of a lithium ion battery comprises an outer lithium battery box, wherein the upper surface of the outer lithium battery box is movably connected with a box cover, the box cover is sleeved with a positive end and a negative end, the negative end is positioned on the left side of the positive end, the box cover is sleeved with a rubber ring I, the left side and the right side of the box cover are fixedly connected with a box cover handle, the left side and the right side of the outer lithium battery box are fixedly connected with an outer box handle through a hinge block, the middle part of the outer lithium battery box is provided with an exhaust hole, one ends of the positive end and the negative end, which are far away from the box cover, are fixedly sleeved with a rubber ring II, the inner bottom wall of the box cover is fixedly connected with a supporting block, the inner side of the supporting block is fixedly connected with a rubber block, a heat absorption plate is arranged in the outer lithium battery box, the inner wall of the heat absorption plate is fixedly connected with a baffle, and the bottom of the heat absorption plate is fixedly connected with a rubber cushion block I, the bottom fixedly connected with support column one end of rubber cushion block one, the other end fixed connection of support column one is on the interior diapire of lithium cell outer container, the inside of baffle is provided with the lithium cell, the bottom swing joint of lithium cell has rubber cushion block two, the bottom fixedly connected with support column two's of rubber cushion block two one end, the other end fixed connection of support column two is on the interior diapire of baffle.

Preferably, a cavity is formed in a gap between the outer box of the lithium battery and the heat absorbing plate, and a water tank is formed in a gap between the lithium battery and the baffle plate.

Preferably, the water tank is filled with a liquid having few impurity ions, such as pure water or distilled water subjected to deionization treatment.

Preferably, the exhaust hole sets up around lithium cell outer container middle part, and the exhaust hole is total twenty, and per two exhaust holes are a set of, and the long limit that corresponds the lithium cell outer container sets up six groups, and the broadside sets up four groups.

Preferably, the rubber blocks are rectangular rubber blocks, and the width of the rubber blocks matched with the width of the water tank is set corresponding to the width of the water tank, so that the rubber blocks can be plugged into the water tank.

Preferably, the number of the supporting blocks is fourteen, and every seven supporting blocks are distributed on the long edge of the heat absorbing plate at equal intervals.

By adopting the technical scheme, the utility model has the beneficial effects that:

1. this lithium ion battery's explosion-proof packaging structure utilizes a plurality of exhaust holes can release internal pressure fast, makes inside and outside pressure unanimous, prevents the lithium ion battery explosion that internal pressure is too high to cause.

2. According to the explosion-proof packaging structure of the lithium ion battery, the liquid injected into the water tank can absorb the temperature inside the lithium ion battery, so that the explosion caused by the overhigh temperature of the lithium ion battery is prevented.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention.

In the figure: 1 lithium battery outer box, 2 box covers, 3 positive terminals, 4 negative terminals, 5 box cover handles, 6 rubber ring I, 7 outer box handles, 8 exhaust holes, 9 rubber ring II, 10 supporting blocks, 11 rubber blocks, 12 heat absorption plates, 13 baffle plates, 14 rubber cushion block I, 15 supporting column I, 16 rubber cushion block II, 17 supporting column II, 18 lithium batteries, 19 water tanks and 20 cavities.

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 is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: an explosion-proof packaging structure of a lithium ion battery comprises a lithium battery outer box 1, a cavity 20 is formed in a gap between the lithium battery outer box 1 and a heat absorbing plate 12, a box cover 2 is movably connected to the upper surface of the lithium battery outer box 1, a positive end 3 and a negative end 4 are sleeved on the box cover 2, the negative end 4 is positioned on the left side of the positive end 3, a rubber ring I6 is sleeved on the box cover 2, a box cover handle 5 is fixedly connected to the left side and the right side of the box cover 2, an outer box handle 7 is fixedly connected to the left side and the right side of the lithium battery outer box 1 through a hinge block, an exhaust hole 8 is arranged in the middle of the lithium battery outer box 1, the exhaust hole 8 is arranged around the middle of the lithium battery outer box 1, twenty exhaust holes 8 are totally arranged, every two exhaust holes 8 are in one group, six groups are arranged corresponding to the long edge of the lithium battery outer box 1, four groups are arranged on the wide edge, the internal pressure can be quickly released by utilizing a plurality of exhaust holes 8, the internal and external pressure intensities are consistent, the lithium ion battery explosion caused by overhigh internal pressure intensity is prevented, the ends, far away from the box cover 2, of the positive electrode end 3 and the negative electrode end 4 are fixedly sleeved with a rubber ring II 9, the inner bottom wall of the box cover 2 is fixedly connected with supporting blocks 10, the number of the supporting blocks 10 is fourteen, every seven supporting blocks 10 are distributed on the long edge of a heat absorbing plate 12 in a group at equal intervals, the inner sides of the supporting blocks 10 are fixedly connected with rubber blocks 11, the rubber blocks 11 are all rectangular rubber blocks, the width of the rubber blocks 11, which is matched with the width of a water tank 19, is set corresponding to the width of the water tank 19, so that the rubber blocks 11 can be plugged into the water tank 19, the heat absorbing plate 12 is arranged inside the lithium battery outer box 1, the inner wall of the heat absorbing plate 12 is fixedly connected with a baffle 13, the bottom of the heat absorbing plate 12 is fixedly connected with a rubber cushion block I14, the bottom of the rubber cushion I14 is fixedly connected with one end of a supporting column I15, and the other end of the supporting column I15 is fixedly connected to the inner bottom wall of the lithium battery outer box 1, the inside of baffle 13 is provided with lithium cell 18, a basin 19 is formed in the space between lithium cell 18 and the baffle 13, the liquid that impurity ion is few is poured into to the inside of basin 19, for example, pure water or deionized water, the inside temperature absorption inside the lithium cell can be had through the inside liquid of pouring into of basin 19 that sets up, prevent the explosion that the lithium cell temperature is too high and cause, the bottom swing joint of lithium cell 18 has two 16 rubber cushion blocks, the bottom fixedly connected with one end of two 17 support columns of two 16 rubber cushion blocks, the other end fixed connection of two 17 support columns is on the interior diapire of baffle 13.

When the explosion-proof packaging structure of the lithium ion battery works, liquid in the water tank 19 can absorb temperature, the temperature is absorbed through the heat absorbing plate 12 and is discharged into the cavity 20, and meanwhile, when the internal pressure is high, the internal pressure can be rapidly reduced through the exhaust hole 8.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium ion battery's explosion-proof packaging structure, includes lithium cell outer container (1), the upper surface swing joint of lithium cell outer container (1) has case lid (2), positive terminal (3) and negative pole end (4) have been cup jointed in case lid (2), just negative pole end (4) are located the left side of positive terminal (3), rubber circle (6) have been cup jointed in case lid (2), the left and right sides fixedly connected with case lid handle (5) of case lid (2), both sides are admittedly through articulated piece fixedly connected with outer container handle (7), its characterized in that about lithium cell outer container (1): the middle part of the lithium battery outer box (1) is provided with an exhaust hole (8), one ends of the positive end (3) and the negative end (4) far away from the box cover (2) are fixedly sleeved with a rubber ring II (9), the inner bottom wall of the box cover (2) is fixedly connected with a supporting block (10), the inner side of the supporting block (10) is fixedly connected with a rubber block (11), the inside of the lithium battery outer box (1) is provided with a heat absorbing plate (12), the inner wall of the heat absorbing plate (12) is fixedly connected with a baffle (13), the bottom of the heat absorbing plate (12) is fixedly connected with a rubber cushion block I (14), the bottom of the rubber cushion block I (14) is fixedly connected with one end of a supporting column I (15), the other end of the supporting column I (15) is fixedly connected on the inner bottom wall of the lithium battery outer box (1), and the inside of the baffle (13) is provided with a lithium battery (18), the bottom swing joint of lithium cell (18) has rubber cushion two (16), the bottom fixedly connected with one end of support column two (17) of rubber cushion two (16), the other end fixed connection of support column two (17) is on the interior diapire of baffle (13).

2. The explosion-proof packaging structure of a lithium ion battery according to claim 1, characterized in that: a cavity (20) is formed in a gap between the outer lithium battery box (1) and the heat absorbing plate (12), and a water tank (19) is formed in a gap between the lithium battery (18) and the baffle (13).

3. The explosion-proof packaging structure of a lithium ion battery according to claim 2, characterized in that: the water tank (19) is filled with a liquid having few impurity ions, such as pure water or distilled water subjected to deionization.

4. The explosion-proof packaging structure of a lithium ion battery according to claim 1, characterized in that: exhaust hole (8) set up around lithium cell outer container (1) middle part, exhaust hole (8) total twenty, and per two exhaust holes (8) are a set of, correspond the long limit of lithium cell outer container (1) and set up six groups, and the broadside sets up four groups.

5. The explosion-proof packaging structure of a lithium ion battery according to claim 1, characterized in that: the rubber blocks (11) are rectangular rubber blocks, and the width of the rubber blocks (11) which is matched with the width of the water tank (19) is set, so that the water tank (19) can be plugged in the rubber blocks (11).

6. The explosion-proof packaging structure of a lithium ion battery according to claim 1, characterized in that: the number of the supporting blocks (10) is fourteen, and every seven supporting blocks (10) are distributed on the long edge of the heat absorbing plate (12) in a group at equal intervals.