CN113314791A - Lithium battery module protection architecture - Google Patents
Lithium battery module protection architecture Download PDFInfo
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- CN113314791A CN113314791A CN202110430143.6A CN202110430143A CN113314791A CN 113314791 A CN113314791 A CN 113314791A CN 202110430143 A CN202110430143 A CN 202110430143A CN 113314791 A CN113314791 A CN 113314791A
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- Prior art keywords
- lithium battery
- battery cell
- battery module
- accommodating groove
- side wall
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000003139 buffering effect Effects 0.000 claims abstract description 19
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 17
- 210000004027 cell Anatomy 0.000 claims description 55
- 210000005056 cell body Anatomy 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
One or more embodiments of the present description provide a lithium battery module protection structure, including a battery cell accommodating groove for accommodating the lithium battery module; the protection box is used for accommodating the battery cell accommodating groove; the electromagnetic buffer device comprises an electromagnetic induction mechanism and a buffer fixing mechanism; and the control circuit is electrically connected with the electromagnetic induction mechanism and the buffering fixing mechanism. According to the lithium battery module protection structure provided by the invention, the electromagnetic buffer device is arranged, when the electromagnetic induction mechanism detects that the lithium battery module receives impact force, the induced current is transmitted to the buffer fixing mechanism through the control circuit, the buffer fixing mechanism reacts to the induced current to fix the battery cell accommodating groove, the lithium battery module is prevented from colliding with the protection box or surrounding objects to generate structural damage, and the working stability of the lithium battery module is improved.
Description
Technical Field
One or more embodiments of this description relate to lithium battery module technical field, especially relate to a lithium battery module protection architecture.
Background
In the technical field of lithium batteries, protection of lithium battery modules with high density, high power and long service life has always been the focus of scientific and technological workers, and protection of lithium battery modules in the prior art is divided into shock absorption protection, temperature protection and short circuit protection.
Shock attenuation protection among the prior art adopts the mode of large-scale disposition damping spring and blotter usually, sets up a plurality of springs and blotter between module and holding shell, and when receiving the impact, damping spring and blotter can be for module buffering impact force on the atress aspect, avoid the atress too big and produce the damage.
The inventor discovers, the mode that prior art's adoption buffer spring and blotter were for lithium battery module buffering impact force's mode protective capacities is limited, because the holding shell space of settling lithium battery module is limited, the space of settling buffer spring is more narrow and small, when the impact force is too big, fragile buffer spring and single thin blotter can't filter most impact force, make lithium battery module with too big impact striking holding shell and object around, the structural stability who has destroyed lithium battery module can lead to the explosion even, the stability of lithium battery module work has seriously been reduced.
Disclosure of Invention
In view of this, an object of one or more embodiments of the present disclosure is to provide a lithium battery module protection structure to improve the stability of the operation of the lithium battery module.
Based on the above-mentioned purpose, one or more embodiments of the present specification provide a lithium battery module protection structure, which is disposed on a peripheral side of a lithium battery module, and includes:
the lithium battery cell comprises a plurality of lithium battery cell bodies which are arranged according to a preset arrangement rule to form a lithium battery module;
the battery cell accommodating groove is used for accommodating the lithium battery module, and heat conduction buffering cushions are arranged at the side part and the bottom of the battery cell accommodating groove;
the battery cell accommodating groove is formed in the inner side wall of the protection box, the buffer device is connected with the battery cell accommodating groove in a buffering mode, a base is arranged at the bottom in the protection box, and the base supports the battery cell accommodating groove;
the electromagnetic buffer device comprises an electromagnetic induction mechanism and a buffer fixing mechanism;
the control circuit is electrically connected with the electromagnetic induction mechanism and the buffering fixing mechanism;
and the air cooling device comprises two motors arranged at the bottom of the protection box and fan blades which rotate coaxially with the driving shafts of the motors.
As an alternative embodiment, the electromagnetic induction mechanism comprises:
the first base is arranged on the side wall in the protection box;
the hollow cylinder is arranged on the first base;
an electromagnetic coil wound around the outer periphery of the hollow cylinder;
the first bar-shaped magnetic block is smaller than the inner diameter of the hollow cylinder in width, is fixedly arranged on the outer side wall of the battery cell accommodating groove through a second base and is aligned to the inner circle of the hollow cylinder;
the buffering fixing mechanism comprises:
the sliding magnet block is connected in the first limiting hole in a telescopic mode through a limiting spring;
and the second limiting holes correspond to the first limiting holes in position, are arranged on the outer bottom surface of the battery cell accommodating groove, are larger than the first limiting holes in diameter, and are provided with a plurality of spiral coils at the inner ends.
In an optional embodiment, the control circuit is electrically connected to the electromagnetic coil and the plurality of solenoids, and the plurality of solenoids are connected in parallel.
As an optional implementation mode, it is a plurality of all sides parcel of lithium cell body has the liquid cooling pipe, the liquid cooling pipe is come and go the range between two adjacent lithium cell bodies, and the bottom of rethread lithium cell is repeated and is come and go the mode of range, the both ends mouth of liquid cooling pipe is worn out the electricity core storage tank and is connected external circulative cooling device.
As an optional implementation manner, the top end position of the lithium battery cell body is provided with a battery cell electrode, the battery cell electrode comprises a battery cell positive electrode and a battery cell negative electrode, a bus bar is further arranged in the battery cell accommodating groove, and the bus bar is arranged on the plurality of top ends of the lithium battery cell body and is electrically connected with the battery cell electrode.
As an optional implementation manner, a cover plate is arranged at the notch position of the battery cell accommodating groove, an insulating buffer pad is arranged on the inner side of the cover plate, and the insulating buffer pad abuts against the bus bar to provide downward pressure.
Specifically, the width of the cover plate is greater than that of the accommodating groove, the bottom side of the edge of the cover plate is fixed with the outer side wall of the accommodating groove through a fixing strip, and the fixing strip is connected with the cover plate and the outer side wall of the accommodating groove through bolts.
As an optional implementation mode, buffer including fix a pair of fixed block on the storage tank lateral wall and correspond slide set up in a pair of flexible piece on the guard box inside wall, the fixed block passes through fixed connecting rod with the flexible piece that corresponds and links to each other, two the one end of flexible piece is through first spring with fix backup pad elastic connection on the guard box inside wall, and the other end passes through second spring interconnect.
As an optional embodiment, the side wall of the protection box is provided with a vent hole, and a dustproof filter screen is arranged at the vent hole.
As an alternative embodiment, the cover of the protection box is fixed by fixing pieces, and the fixing pieces are connected with the cover and the side walls of the protection box by bolts.
From the above, it can be seen that one or more embodiments of this specification provide a lithium battery module protection architecture, through setting up electromagnetic buffer, when electromagnetic induction mechanism detects the lithium battery module and receives the impact force, transmit induced-current to through control circuit buffering fixed establishment, buffering fixed establishment makes the reaction to induced-current, and is fixed electric core storage tank prevents that the lithium battery module from striking protection box or object around and producing the structural damage, has improved the stability of lithium battery module work.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a schematic diagram of a lithium battery protection architecture according to one or more embodiments of the present disclosure;
FIG. 2 is a schematic view of an electromagnetic induction mechanism according to one or more embodiments of the present disclosure;
FIG. 3 is a schematic diagram of a buffering and fixing mechanism without induced current in a control circuit according to one or more embodiments of the present disclosure;
FIG. 4 is a schematic diagram of a buffering and fixing mechanism in the presence of an induced current in a control circuit according to one or more embodiments of the present disclosure;
FIG. 5 is a schematic diagram of a control circuit according to one or more embodiments of the present disclosure.
Wherein, 1-a lithium cell body, 1 a-a liquid cooling tube, 2-a cell accommodating groove, 2 a-a bus plate, 2 b-a cover plate, 2 c-an insulating buffer pad, 2 d-a fixing strip, 3-a protection box, 3 a-a base, 3 b-a ventilation hole, 3 c-a dustproof filter screen, 3 d-a fixing sheet, 4-an electromagnetic buffer device, 4 a-a first base, 4 b-a hollow cylinder, 4 c-an electromagnetic coil, 4 d-a first strip magnet, 4 e-a second base, 4 f-a first limit hole, 4 g-a sliding magnet, 4 h-a limit spring, 4 i-a second limit hole, 4 j-a solenoid coil, 5-an air cooling device, 6-a buffer device, 6 a-a fixing block and 6 b-a telescopic block, 6 c-fixed link, 6 d-first spring, 6 e-support plate, 6 f-second spring.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is described in further detail below with reference to specific embodiments and fig. 1 to 5.
In view of the above, one or more embodiments of the present disclosure provide a lithium battery module protection structure, as shown in fig. 1 to 5, disposed on a peripheral side of a lithium battery module, including:
the lithium battery cell comprises a lithium battery cell body 1, wherein a plurality of lithium battery cell bodies 1 are arranged according to a preset arrangement rule to form a lithium battery module;
the battery cell accommodating groove 2 is used for accommodating the lithium battery module, and heat conduction buffering cushions are arranged at the side part and the bottom of the battery cell accommodating groove 2;
the battery cell accommodating groove 2 is formed in the inner side wall of the protection box 3, a buffer device 6 in buffer connection with the battery cell accommodating groove 2 is arranged on the inner side wall of the protection box 3, a base 3a is arranged at the bottom in the protection box 3, and the base 3a supports the battery cell accommodating groove 2;
the electromagnetic buffer device 64 comprises an electromagnetic induction mechanism and a buffer fixing mechanism;
the control circuit is electrically connected with the electromagnetic induction mechanism and the buffering fixing mechanism;
and the air cooling device 5 comprises two motors arranged at the bottom of the protection box 3 and fan blades which rotate coaxially with the driving shaft of the motors.
According to the lithium battery module protection structure provided by the invention, the electromagnetic buffer device 64 is arranged, when the electromagnetic induction mechanism detects that the lithium battery module receives impact force, the induced current is transmitted to the buffer fixing mechanism through the control circuit, the buffer fixing mechanism reacts to the induced current to fix the battery cell accommodating groove 2, the lithium battery module is prevented from colliding with the protection box 3 or surrounding objects to generate structural damage, and the working stability of the lithium battery module is improved.
As an alternative embodiment, the electromagnetic induction mechanism comprises:
a first pedestal 4a3a provided on a side wall in the protection box 3;
a hollow cylinder 4b provided on the first base 4a3 a;
an electromagnetic coil 4c wound around the outer periphery of the hollow cylinder 4 b;
the first bar-shaped magnetic block 4d, which is smaller than the inner diameter of the hollow cylinder 4b in width, is fixedly arranged on the outer side wall of the battery cell accommodating groove 2 through a second base 4e3a and is aligned with the inner circle of the hollow cylinder 4 b;
the buffering fixing mechanism comprises:
the plurality of first limiting holes 4f are formed in the base 3a, a sliding magnetic block 4g is arranged in each first limiting hole 4f, the width of each sliding magnetic block 4g is the same as the aperture of each first limiting hole 4f, and the sliding magnetic blocks 4g are telescopically connected into the first limiting holes 4f through limiting springs 4 h;
a plurality of second limiting holes 4i corresponding to the first limiting holes 4f are arranged on the outer bottom surface of the battery cell accommodating groove 2, the aperture of each second limiting hole is larger than that of the corresponding first limiting hole 4f, and a plurality of spiral coils 4j are arranged at the inner ends of the second limiting holes 4 i.
When the battery cell accommodating groove 2 is impacted by the outside, the battery cell accommodating groove 2 moves sideward at high speed, the first bar-shaped magnetic block 4d moves at the same speed and is inserted into the hollow cylinder 4b, and according to the electromagnetic induction principle, the magnetic flux passing through the coil of the electromagnetic coil 4c is rapidly increased, so that induced current is generated on the electromagnetic coil 4 c.
In an alternative embodiment, the control circuit is electrically connected to the electromagnetic coil 4c and the plurality of solenoids 4j, and the plurality of solenoids 4j are connected in parallel.
The induced current is conducted to the spiral coil 4j through the control circuit, the spiral coil 4j is electrified to generate magnetism, the sliding magnetic block 4g in the first limiting hole 4f is attracted to slide outwards, and extends into the second limit hole 4i, the sliding magnetic block 4g simultaneously blocks the first limit hole 4f and the second limit hole 4i, and is firmly clamped under the action of impact force, the electric core accommodating groove 2 is prevented from moving sideward due to the impact force, the electric core accommodating groove 2 is firmly clamped on the base 3a, the structural damage caused by the collision of the electric core accommodating groove with the protection box 3 due to rapid movement is avoided, the stability of the lithium battery module in the box is improved, when the external impact force disappears, the induced current on the solenoid 4j disappears according to the electromagnetic induction principle, and the sliding magnetic block 4g returns to the first limit hole 4f under the pulling force of the limit spring 4 h.
As an optional implementation mode, it is a plurality of the week side parcel of lithium cell body 1 has liquid cooling pipe 1a, liquid cooling pipe 1a reciprocates between two adjacent lithium cell bodies 1 and arranges, the repeated mode that reciprocates of the bottom of rethread lithium cell was arranged, the both ends mouth of liquid cooling pipe 1a is worn out electricity core storage tank 2 and is connected external circulative cooling device.
The cooling tube helps taking away the heat that lithium cell module work produced fast to diversified parcel of lithium cell body 1, has strengthened the radiating efficiency.
As an optional implementation manner, the top end position of the lithium battery cell body 1 is provided with a battery cell electrode, the battery cell electrode includes a battery cell positive electrode and a battery cell negative electrode, a bus bar 2a is further provided in the battery cell accommodating groove 2, and the bus bar 2a is provided at a plurality of top ends of the lithium battery cell body 1 and electrically connected to the battery cell electrode.
As an alternative embodiment, a cover plate 2b is disposed at the notch position of the cell accommodating groove 2, an insulating buffer pad 2c is disposed at the inner side of the cover plate 2b, and the insulating buffer pad 2c abuts against the bus bar 2a to provide downward pressure.
The cover plate 2b fixes the lithium battery module in the battery cell accommodating groove 2 through the insulating buffer cushion 2 c.
Specifically, the width of the cover plate 2b is greater than the width of the accommodating groove, the bottom side of the edge of the cover plate 2b is fixed to the outer side wall of the accommodating groove through a fixing strip 2d, and the fixing strip 2d is connected with the cover plate 2b and the outer side wall of the accommodating groove through bolts.
As an optional implementation mode, buffer 6 is including fixing a pair of fixed block 6a on the storage tank lateral wall and corresponding slip set up in a pair of flexible piece 6b on the guard box 3 inside wall, fixed block 6a links to each other through fixed connecting rod 6c with flexible piece 6b that corresponds, two flexible piece 6 b's one end is through first spring 6d with fix backup pad 6e elastic connection on the guard box 3 inside wall, and the other end passes through second spring 6f interconnect.
As an alternative embodiment, the side wall of the protection box 3 is provided with a vent hole 3b, and a dustproof filter screen 3c is arranged at the vent hole 3 b.
The setting of dustproof filter screen 3c filters the impurity in the outside air for effectual lithium battery module in the guard box 3, prevents to fall into the deposition on the lithium battery module and causes the short circuit even.
As an alternative embodiment, the cover of the protection box 3 is fixed by fixing pieces 3d, and the fixing pieces 3d are connected with the cover and the side walls of the protection box 3 by bolts.
It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (10)
1. The utility model provides a lithium battery module protection architecture, sets up in all sides of lithium battery module, its characterized in that includes:
the lithium battery cell comprises a plurality of lithium battery cell bodies which are arranged according to a preset arrangement rule to form a lithium battery module;
the battery cell accommodating groove is used for accommodating the lithium battery module, and heat conduction buffering cushions are arranged at the side part and the bottom of the battery cell accommodating groove;
the battery cell accommodating groove is formed in the inner side wall of the protection box, the buffer device is connected with the battery cell accommodating groove in a buffering mode, a base is arranged at the bottom in the protection box, and the base supports the battery cell accommodating groove;
the electromagnetic buffer device comprises an electromagnetic induction mechanism and a buffer fixing mechanism;
the control circuit is electrically connected with the electromagnetic induction mechanism and the buffering fixing mechanism;
and the air cooling device comprises two motors arranged at the bottom of the protection box and fan blades which rotate coaxially with the driving shafts of the motors.
2. The lithium battery module protection structure according to claim 1, wherein the electromagnetic induction mechanism includes:
the first base is arranged on the side wall in the protection box;
the hollow cylinder is arranged on the first base;
an electromagnetic coil wound around the outer periphery of the hollow cylinder;
the first bar-shaped magnetic block is smaller than the inner diameter of the hollow cylinder in width, is fixedly arranged on the outer side wall of the battery cell accommodating groove through a second base and is aligned to the inner circle of the hollow cylinder;
the buffering fixing mechanism comprises:
the sliding magnet block is connected in the first limiting hole in a telescopic mode through a limiting spring;
and the second limiting holes correspond to the first limiting holes in position, are arranged on the outer bottom surface of the battery cell accommodating groove, are larger than the first limiting holes in diameter, and are provided with a plurality of spiral coils at the inner ends.
3. The lithium battery module protection structure as claimed in claim 1, wherein the control circuit is electrically connected to the electromagnetic coil and the plurality of solenoids, and the plurality of solenoids are connected in parallel.
4. The lithium battery module protection structure of claim 1, wherein a plurality of the lithium battery cell bodies are wrapped with liquid cooling tubes, the liquid cooling tubes are arranged back and forth between two adjacent lithium battery cell bodies, and then are arranged in a manner of repeated back and forth arrangement at the bottoms of the lithium battery cells, and two ports of each liquid cooling tube penetrate through the cell accommodating groove and are connected with an external circulating cooling device.
5. The lithium battery module protection structure of claim 1, wherein a battery cell electrode is disposed at a top end of the lithium battery cell body, the battery cell electrode comprises a battery cell positive electrode and a battery cell negative electrode, and a bus bar is further disposed in the battery cell accommodating groove, the bus bar is disposed at a top end of the plurality of lithium battery cell bodies and electrically connected to the battery cell electrode.
6. The lithium battery module protection structure as claimed in claim 1, wherein a cover plate is disposed at a notch of the cell accommodating groove, and an insulating buffer pad is disposed at an inner side of the cover plate and abuts against the bus bar to provide a downward pressure.
7. The lithium battery module protection structure as claimed in claim 6, wherein the cover plate has a width greater than that of the receiving groove, the bottom side of the edge of the cover plate is fixed to the outer sidewall of the receiving groove by a fixing strip, and the fixing strip is bolted to the cover plate and the outer sidewall of the receiving groove.
8. The lithium battery module protection structure as claimed in claim 1, wherein the buffer device comprises a pair of fixed blocks fixed on the side wall of the accommodating groove and a pair of telescopic blocks correspondingly slidably disposed on the inner side wall of the protection box, the fixed blocks and the corresponding telescopic blocks are connected by a fixed link, one ends of the two telescopic blocks are elastically connected with a support plate fixed on the inner side wall of the protection box by a first spring, and the other ends are connected with each other by a second spring.
9. The lithium battery module protection structure as claimed in claim 1, wherein the side wall of the protection box is provided with a vent hole, and a dust-proof filter screen is arranged at the vent hole.
10. The lithium battery module protection structure as claimed in claim 1, wherein the case cover of the protection case is fixed by a fixing piece, and the fixing piece is connected with the case cover and the side wall of the protection case by bolts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110430143.6A CN113314791A (en) | 2021-04-21 | 2021-04-21 | Lithium battery module protection architecture |
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| CN202110430143.6A CN113314791A (en) | 2021-04-21 | 2021-04-21 | Lithium battery module protection architecture |
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| CN113314791A true CN113314791A (en) | 2021-08-27 |
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