CN208093693U - A kind of lithium battery group - Google Patents

Abstract

The utility model discloses a kind of lithium battery groups, including：Water inlet pipe and outlet pipe is respectively set in the opposite sides of cooling water tank and multiple lithium batteries, the cooling water tank, and recess is formed with multiple buckling grooves to the top plate of the cooling water tank downwards；The lower end of each lithium battery, which corresponds, is built in each buckling groove, and the outer wall of the lithium battery and the cell wall of the buckling groove abut against.The equal lower end of each of the utility model lithium battery is built in the buckling groove on the cooling water tank, the water inlet pipe after being connected to outer water tube it is sustainable into the cooling water tank convey cooling water to the lithium battery carry out continued down, the fever phenomenon for effectively reducing lithium battery group eliminates the lithium battery being likely to occur and overheats the security risk burnt.

Description

A kind of lithium battery group

Technical field

The utility model is related to battery technology fields, more particularly, to a kind of lithium battery group.

Background technology

Lithium battery group usually being in series or in parallel to form by multiple lithium batteries, to enhance the power supply performance of lithium battery. But multiple batteries are powered simultaneously, inevitably result from fever phenomenon, and especially under the higher environment of temperature, lithium battery This fever phenomenon performance of group is particularly acute, and battery overheat burning may be caused even to explode, there are serious safety is hidden Suffer from, influences the service life of battery.

Utility model content

The purpose of the utility model is to overcome above-mentioned technical deficiencies, propose a kind of lithium battery group, solve in the prior art Lithium battery group be easy fever the technical issues of.

To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of lithium battery group, including：Cooling water tank And water inlet pipe and outlet pipe, the top plate of the cooling water tank is respectively set in multiple lithium batteries, the opposite sides of the cooling water tank Recess is formed with multiple buckling grooves downwards；The lower end of each lithium battery, which corresponds, is built in each buckling groove, and And the outer wall of the lithium battery and the cell wall of the buckling groove abut against.

Compared with prior art, the beneficial effects of the utility model include：Each of lithium battery group lithium battery Equal lower end is built in the buckling groove on the cooling water tank, and the water inlet pipe is sustainable to the cooling after being connected to outer water tube Cooling water is conveyed in water tank, continued down is carried out to the lithium battery, effectively reduce the fever phenomenon of lithium battery group, elimination can The lithium battery that can occur overheats the security risk burnt.

Description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model.

Fig. 2 is the schematic top plan view of Fig. 1.

Fig. 3 is the faces A-A schematic cross-sectional view in Fig. 2.

Fig. 4 is the schematic elevation view of Fig. 1.

Fig. 5 is the faces B-B schematic cross-sectional view in Fig. 4.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

~5 are please referred to Fig.1, the present embodiment provides a kind of lithium battery groups, including：Cooling water tank 1 and multiple lithium batteries 2, institute Water inlet pipe 1a and outlet pipe 1b, the downward concave shape of top plate of the cooling water tank 1 is respectively set in the opposite sides for stating cooling water tank 1 At there is multiple buckling grooves；The lower end of each lithium battery 2, which corresponds, is built in each buckling groove, and lithium electricity The outer wall in pond 2 and the cell wall of the buckling groove abut against；Each of the lithium battery group 2 equal lower end of lithium battery is built in institute The buckling groove on cooling water tank 1 is stated, the water inlet pipe 1a is sustainable after being connected to outer water tube to be conveyed into the cooling water tank 1 Cooling water carries out continued down to the lithium battery 2, and the cooling water after heat absorption is discharged from the outlet pipe 1b, effectively reduces this The fever phenomenon of lithium battery group eliminates the lithium battery 2 being likely to occur and overheats the security risk burnt.Preferably, described cold But water tank 1 is internally provided with multiple block water plate 1c, and each block water plate 1c is arranged in a one-to-one correspondence to be clamped described in each two Between slot, the bottom margin of the block water plate 1c and both sides of the edge are connected with the bottom plate of the cooling water tank 1 and both side plate respectively It connects, is provided with overflow gap between the top edge and the top plate of the cooling water tank 1 of the block water plate 1c, increases cooling water Flow distance in the cooling water tank 1 ensures that cooling water can flow through each position inside the cooling water tank 1, into one Step improves cooling effect.Each lithium battery 2 includes shell 21, coping plate 22, sealing ring 23, the first pole 24 and the Two poles 25,21 upper end opening of the shell；The coping plate 22 is including welded plate 221 and by 221 lower surface of the welded plate The locating piece 222 being downwardly extending, the opening welded seal of the outer rim of the welded plate 221 and the shell 21；It is described close Seal 23 is sheathed on the locating piece 222, and the peripheral surface of the sealing ring 222 is closely connected to the inner wall of the shell 21；Institute The lower end for stating the first pole 24 and second pole 25 both passes through the coping plate 22 and is built in the shell 21, and described The polarity of one pole 24 and second pole 25 is on the contrary, and at least one in first pole 24 and second pole 25 It insulate with the coping plate 22, multiple first poles 24 and second pole 25 are connected by conducting wire (not shown) Or it is electrically connected with external electric appliance (not shown) after parallel connection；Wherein, the sealing ring 222 is phenolic resin material, works as institute When stating the outer rim and the opening welded seal of the shell 21 of welded plate 221, the sealing ring 222 can effectively stop welding process The heat source of generation prevents insulating trip (not shown), the isolation film (figure of the naked battery core (not shown) in the shell 21 In be not shown) and pole piece (not shown) scald.

The lithium battery group further includes transition case 3 and imbibition portion 4, and the transition case 3 and the outer wall of the shell 21 are solid Fixed connection；The top of the transition case 3 offers air hole 3a；The imbibition portion 4 is filled in the inside of the transition case 4；Often A lithium battery 2 further includes an explosion stack 26, and the explosion stack 26 is including explosion-proof tube body 261 and is built in the explosion stack The inlet end of the check valve 262 of ontology 261, each explosion-proof tube body 261 is corresponded across each coping plate 22 And be connected to the inside of the shell 21, the outlet side of each explosion-proof tube body 261 connects with the inside of the transition case 3 Logical, the lithium battery 2 generates gas and can be unidirectionally discharged by the explosion stack 26 in the transition case 3 in use, with The electrolyte that the gas is discharged together can be absorbed by the imbibition portion 4, avoid electrolyte leak into external environment cause it is short Road；The imbibition portion 4 is sponge block.The bottom of the cooling water tank 1 and the transition case 3 is both provided with beam 5, described to subtract The pad 5 that shakes is rubber material.

Operation principle：Each of the lithium battery group 2 equal lower end of lithium battery is built in the card on the cooling water tank 1 Access slot, the water inlet pipe 1a after being connected to outer water tube it is sustainable into the cooling water tank 1 convey cooling water to the lithium electricity Pond 2 carries out continued down, and the cooling water after heat absorption is discharged from the outlet pipe 1b, and the fever for effectively reducing the lithium battery group is existing As eliminating the lithium battery 2 being likely to occur and overheating the security risk burnt；Outer rim when the welded plate 221 and the shell When the opening welded seal of body 21, the sealing ring 222 can effectively stop the heat source that welding process generates, and prevent the shell 21 Insulating trip, isolation film and the pole piece scald of interior naked battery core；The lithium battery 2 generates gas in use can pass through institute It states explosion stack 26 to be unidirectionally discharged into the transition case 3, the electrolyte being discharged with the gas can be inhaled by the imbibition portion 4 It receives, avoids electrolyte from leaking into and cause short circuit in external environment, while the air pressure inside for also avoiding the lithium battery 2 is excessively occurred frequently The danger of raw explosion.

Specific embodiment of the present utility model described above does not constitute the restriction to scope of protection of the utility model. The various other corresponding changes and deformation that any technical concept according to the present utility model is made, should be included in this practicality In novel scope of the claims.

Claims (5)

1. a kind of lithium battery group, including：Cooling water tank and multiple lithium batteries, the opposite sides of the cooling water tank be respectively set into Water pipe and outlet pipe, recess is formed with multiple buckling grooves to the top plate of the cooling water tank downwards；The lower end of each lithium battery One-to-one correspondence is built in each buckling groove, and the outer wall of the lithium battery and the cell wall of the buckling groove abut against.

2. lithium battery group according to claim 1, which is characterized in that the cooling water tank is internally provided with multiple water blocking Piece, each block water plate are arranged in a one-to-one correspondence between the buckling groove described in each two, the bottom margin of the block water plate and two Lateral edges are connected with the bottom plate of the cooling water tank and both side plate respectively, the top edge of the block water plate and the cooling water Overflow gap is provided between the top plate of case.

3. lithium battery group according to claim 1, which is characterized in that each lithium battery include shell, coping plate, Sealing ring, the first pole and the second pole, the shell upper end opening；The coping plate includes welded plate and by the welded plate The locating piece that lower surface is downwardly extending, the opening welded seal of the outer rim of the welded plate and the shell；The sealing Snare is set to the locating piece, and the peripheral surface of the sealing ring is closely connected to the inner wall of the shell；First pole and The lower end of second pole both passes through the coping plate and is built in the shell, first pole and second pole Polarity on the contrary, and at least one in first pole and second pole insulating with the coping plate.

4. lithium battery group according to claim 3, which is characterized in that the lithium battery group further includes transition case and imbibition Portion, the transition case are fixedly connected with the outer wall of the shell；Air hole is offered at the top of the transition case；The imbibition portion It is filled in the inside of the transition case；Each lithium battery further includes an explosion stack, and the explosion stack includes explosion-proof tube body And it is built in the check valve of the explosion-proof tube body, the inlet end of each explosion-proof tube body is corresponded across each described Coping plate and be connected to the inside of the shell, the outlet side of each explosion-proof tube body connects with the inside of the transition case It is logical.

5. lithium battery group according to claim 4, which is characterized in that the bottom of the cooling water tank and the transition case is equal It is provided with beam.