阅读说明：本技术 一种有低温保护效果的锂电池 (Lithium battery with low-temperature protection effect ) 是由 童军 于 2020-04-28 设计创作，主要内容包括：本发明涉及锂电池技术领域,且公开了一种有低温保护效果的锂电池,包括外壳,所述外壳内部的底部等距固定安装有两个隔离箱,两个所述隔离箱内腔的底部固定安装有减震弹簧,所述减震弹簧的顶部固定安装有减震块,所述减震块的顶部均延伸至隔离箱的上方并固定安装有内胆。本发明通过设置有外隔热层、内保温层以及发热丝,使得锂电池在外界低温环境下进行工作时,外隔热层以及内保温层会在内胆内部形成一个保温效果较好的保温空间,使得电池组能够在较为稳定的环境下工作,同时在发热丝对内胆内部进行升温时,同时停止正在进行的锂电池充电活动,防止锂电池温度过低的情况下,继续充电导致析锂的情况产生,从而防止永久性锂电池容量损失。(The invention relates to the technical field of lithium batteries, and discloses a lithium battery with a low-temperature protection effect, which comprises a shell, wherein two isolation boxes are fixedly arranged at the bottom in the shell at equal intervals, damping springs are fixedly arranged at the bottoms of inner cavities of the two isolation boxes, damping blocks are fixedly arranged at the tops of the damping springs, and the tops of the damping blocks extend to the upper parts of the isolation boxes and are fixedly provided with inner containers. According to the invention, the outer heat-insulating layer, the inner heat-insulating layer and the heating wire are arranged, so that when the lithium battery works in the external low-temperature environment, the outer heat-insulating layer and the inner heat-insulating layer can form a heat-insulating space with a good heat-insulating effect in the inner container, the battery pack can work in a relatively stable environment, and meanwhile, when the heating wire heats the inner container, the ongoing lithium battery charging activity is stopped, the lithium battery is prevented from being separated due to continuous charging under the condition of too low temperature of the lithium battery, and the capacity loss of the permanent lithium battery is prevented.)

1. A lithium battery having a low temperature protection effect, comprising a case (1), characterized in that: the bottom of the inner part of the shell (1) is fixedly provided with two isolation boxes (2) at equal intervals, the bottom of the inner cavity of the two isolation boxes (2) is fixedly provided with a damping spring (3), the top of the damping spring (3) is fixedly provided with a damping block (4), the top of the damping block (4) extends to the upper part of the isolation box (2) and is fixedly provided with an inner container (5), the two sides of the inner cavity of the shell (1) are respectively provided with a sliding chute (7), the inner part of the two sliding chutes (7) is respectively connected with a sliding block (6) in a sliding manner, one side of the sliding block (6) corresponding to the inner cavity is respectively fixedly provided with a return spring (8), one end of the two return springs (8) is respectively fixedly provided with a supporting block (9), one side of the two supporting blocks (9) corresponding to each is fixedly connected with the outer side of the inner container (5), the inner cavity of the inner container (5) is fixedly provided with an outer heat insulation layer (10), outer insulating layer (10) inner chamber fixed mounting has interior heat preservation (12), the gap department packing of outer insulating layer (10) and interior heat preservation (12) has heater (11), interior heat preservation (12) inner chamber fixed mounting has group battery (13), one side fixed mounting of interior heat preservation (12) inner chamber has thermodetector (14), the top of shell (1) is inlayed and is had control switch (16), the top fixed mounting of inner bag (5) has two terminals (15).

2. A lithium battery having a low-temperature protection effect according to claim 1, characterized in that: the outer heat insulation layer (10) is made of a super-flexible ultrathin fibrous heat insulation film, and the inner heat insulation layer (12) is made of a Delong Telite high polymer modified foam material.

3. A lithium battery having a low-temperature protection effect according to claim 1, characterized in that: the damping blocks (4) are all in sliding connection with the inner cavity of the isolation box (2), and the supporting blocks (9) are all in sliding connection with the inner cavity of the sliding block (6).

4. A lithium battery having a low-temperature protection effect according to claim 1, characterized in that: the battery pack (13) is formed by connecting five lithium batteries.

5. A lithium battery having a low-temperature protection effect according to claim 1, characterized in that: the isolation box (2), the sliding block (6) and the sliding groove (7) are symmetrically arranged along the middle vertical line of the shell (1).

6. A lithium battery having a low-temperature protection effect according to claim 1, characterized in that: the vertical height of the sliding chute (7) is matched with that of the inner container (5).

Technical Field

The invention relates to the technical field of lithium batteries, in particular to a lithium battery with a low-temperature protection effect.

Background

With the development of society, lithium batteries are widely used in real life as representatives of new energy sources, and can be divided into lithium metal batteries and lithium ion batteries, and the lithium ion batteries can be charged.

Lithium cell is under the lower environment of temperature in winter, and various active material activities are lower in the lithium cell, lead to electric conductive property to descend, and the lithium cell continues to charge under the condition that the temperature is crossed low excessively, can lead to the condition of analysing lithium to produce to cause the permanent lithium cell capacity loss of lithium cell, thereby make the life-span greatly reduced of lithium cell, the lithium cell is receiving external force when rocking simultaneously, causes the damage to internal element easily, influences the daily use of lithium cell.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the lithium battery with the low-temperature protection effect, which has the advantages that the lithium battery can still stably operate in environments with lower temperature such as severe cold and the like and cannot be damaged due to shaking, and solves the problems that the conventional lithium battery cannot stably operate in environments with lower temperature such as severe cold and the like and the lithium battery can be damaged due to shaking.

The invention provides the following technical scheme: a lithium battery with a low-temperature protection effect comprises a shell, wherein two isolation boxes are fixedly arranged at the bottom inside the shell in an equidistant mode, damping springs are fixedly arranged at the bottoms of inner cavities of the two isolation boxes, damping blocks are fixedly arranged at the tops of the damping springs, the tops of the damping blocks extend to the upper side of the isolation boxes, inner containers are fixedly arranged at the tops of the inner cavities of the two isolation boxes, sliding grooves are formed in the two sides of the inner cavity of the shell, sliding blocks are slidably connected inside the two sliding grooves, return springs are fixedly arranged on the corresponding sides of the inner cavities of the sliding blocks, supporting blocks are fixedly arranged at one ends of the two return springs, the corresponding sides of the two supporting blocks are fixedly connected with the outer side of the inner container, an outer heat insulation layer is fixedly arranged in the inner cavity of the inner container, an inner heat insulation layer is fixedly arranged in the inner cavity of the outer heat insulation layer, and heating wires are filled in gaps between the outer heat insulation layer and the inner heat insulation layer, interior heat preservation inner chamber fixed mounting has the group battery, one side fixed mounting of interior heat preservation inner chamber has thermodetector, the top of shell is inlayed and is had control switch, the top fixed mounting of inner bag has two terminals.

Preferably, the outer heat insulation layer is made of a super-flexible ultrathin fibrous heat insulation film, and the inner heat insulation layer is made of a Delauron Telite polymer modified foam material.

Preferably, the damping blocks are all in sliding connection with the inner cavity of the isolation box, and the supporting blocks are all in sliding connection with the inner cavity of the sliding block.

Preferably, the battery pack is composed of five lithium batteries connected.

Preferably, the isolation box, the sliding block and the sliding groove are symmetrically arranged along a vertical line in the shell.

Preferably, the vertical height of the sliding groove is matched with that of the inner container.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the outer heat-insulating layer, the inner heat-insulating layer and the heating wire are arranged, so that when the lithium battery works in the external low-temperature environment, the outer heat-insulating layer and the inner heat-insulating layer can form a heat-insulating space with a good heat-insulating effect in the inner container, the battery pack can work in a relatively stable environment, and meanwhile, when the heating wire heats the inner container, the ongoing lithium battery charging activity is stopped, the lithium battery is prevented from being separated due to continuous charging under the condition of too low temperature of the lithium battery, and the capacity loss of the permanent lithium battery is prevented.

2. According to the invention, the damping block, the damping spring, the supporting block and the reset spring are arranged, so that when the lithium battery is shaken up and down in work, the damping block acts on the damping spring, the damping spring plays a role in buffering the inner container, and simultaneously when the lithium battery is shaken left and right in work, the supporting block acts on the reset spring, so that the reset spring also plays a role in buffering the inner container, and the damage of the battery pack in the inner container caused by the shaking of the shell is prevented.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged view of FIG. 2 at A.

In the figure: 1. a housing; 2. an isolation box; 3. a damping spring; 4. a damper block; 5. an inner container; 6. a slider; 7. a chute; 8. a return spring; 9. a support block; 10. an outer insulating layer; 11. a heater; 12. an inner insulating layer; 13. a battery pack; 14. a temperature detector; 15. a binding post; 16. and controlling the switch.

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.

Referring to fig. 1-3, a lithium battery with low temperature protection effect comprises a housing 1, two isolation boxes 2 are fixedly installed at the bottom of the interior of the housing 1 at equal intervals, damping springs 3 are fixedly installed at the bottoms of the inner cavities of the two isolation boxes 2, damping blocks 4 are fixedly installed at the tops of the damping springs 3, the tops of the damping blocks 4 extend to the upper portions of the isolation boxes 2 and are fixedly installed with an inner container 5, sliding grooves 7 are respectively formed at the two sides of the inner cavity of the housing 1, sliding blocks 6 are respectively connected inside the two sliding grooves 7 in a sliding manner, return springs 8 are respectively fixedly installed at the corresponding sides of the inner cavities of the sliding blocks 6, supporting blocks 9 are respectively fixedly installed at one ends of the two return springs 8, the corresponding sides of the two supporting blocks 9 are respectively fixedly connected with the outer side of the inner container 5, an outer heat insulation layer 10 is fixedly installed in the inner cavity of the inner container 5, an inner heat insulation layer 12 is fixedly installed in the inner cavity of the outer heat insulation layer 10, outer insulating layer 10 and the space department packing of interior heat preservation 12 have heater 11, and 12 inner chambers fixed mounting of interior heat preservation have group battery 13, and one side fixed mounting of 12 inner chambers of interior heat preservation has thermodetector 14, and thermodetector 14's model is: DS18B20, the top of shell 1 is inlayed with control switch 16, and the top of inner bag 5 is fixed mounting has two terminal 15.

Wherein, the material of outer insulating layer 10 is super gentle tough ultra-thin fibrous thermal-insulated membrane, and interior heat preservation 12 is the modified foam material of deliron long TElite polymer, and outer insulating layer 10 can effectively protect 5 inside not receiving the influence of external environment temperature of inner bag in lithium cell daily use, and interior heat preservation 12 has fire-retardant and effectual characteristics that keep warm simultaneously to further keep warm 5 insides of inner bag through cooperateing with outer insulating layer 10.

Wherein, snubber block 4 all with the inner chamber sliding connection of shielded box 2, supporting shoe 9 all with the inner chamber sliding connection of slider 6, make the lithium cell when receiving rocking from top to bottom, inner bag 5 is used in snubber block 4, snubber block 4 is used in damping spring 3, this just can make inner bag 5 have good resiliency, when rocking about the lithium cell receives simultaneously, inner bag 5 is used in supporting shoe 9, supporting shoe 9 is used in reset spring 8, simultaneously because reset spring 8 has good resiliency, thereby make inner bag 5 also have good resiliency, thereby prevent that shell 1 from rocking and leading to the damage of 5 inside group battery 13 of inner bag.

The battery pack 13 is formed by connecting five lithium batteries, can bear fluctuation of charging voltage and current to a considerable degree, and can fully ensure stability and convenience of electric energy supply.

Wherein, isolation box 2, slider 6, spout 7 set up along shell 1 median perpendicular line symmetry for 1 internal space utilization of shell is higher, thereby makes 1 internal space of shell compact, makes and has good stability when the lithium cell receives about or rocks from top to bottom.

Wherein, the vertical height of spout 7 and inner bag 5's vertical height phase-match, when the lithium cell received the oscilaltion, inner bag 5 acted on snubber block 4 downwards, and snubber block 4 acts on damping spring 3 downwards, drives slider 6 simultaneously and moves down in slider 6 inside, and this just makes inner bag 5 have good resiliency to prevent that shell 1 from rocking and leading to the damage of inner bag 5 inside group battery 13.

The working principle is as follows: when the temperature detector 14 detects that the temperature inside the inner container 5 is too low, the heating wire 11 is started through the control switch 16, so that the inside of the inner container 5 is heated, the ongoing lithium battery charging activity is stopped, the lithium battery is prevented from being separated due to continuous charging under the condition that the temperature of the lithium battery is too low, the permanent capacity loss of the lithium battery is prevented, when the temperature inside the inner container 5 reaches a proper working standard, the control switch 16 closes the heating wire 11, the lithium battery charging activity can be continued, so that the situation that the lithium battery is burnt due to continuous heating is avoided, when the temperature detector is used daily, the outer heat-insulating layer 10 can effectively isolate the influence of the external temperature on the inside of the inner container 5, and simultaneously, the outer heat-insulating layer 10 is matched with the inner heat-insulating layer 12, so that a heat-insulating space with a good heat-insulating effect is formed inside the inner container 5, when the lithium battery is shaken up and down, at this moment, inner bag 5 is used in snubber block 4, snubber block 4 is used in damping spring 3, because damping spring 3 has good resiliency, admittedly can make inner bag 5 have good resiliency, when rocking about the lithium cell receives simultaneously, at this moment inner bag 5 is used in supporting shoe 9, supporting shoe 9 is used in reset spring 8, simultaneously because reset spring 8 has good resiliency, thereby make inner bag 5 also have good resiliency, thereby prevent that shell 1 from rocking and leading to the damage of the inside group battery 13 of inner bag 5.

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. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.

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 invention, the scope of which is defined in the appended claims and their equivalents.