CN112563619B - New energy automobile battery protection device - Google Patents

New energy automobile battery protection device Download PDF

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Publication number
CN112563619B
CN112563619B CN202110020053.XA CN202110020053A CN112563619B CN 112563619 B CN112563619 B CN 112563619B CN 202110020053 A CN202110020053 A CN 202110020053A CN 112563619 B CN112563619 B CN 112563619B
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China
Prior art keywords
cavity
sliding
fixedly connected
battery
gear
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CN202110020053.XA
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CN112563619A (en
Inventor
李成红
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Sichuan Zhongde New Energy Technology Co Ltd
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Sichuan Zhongde New Energy Technology Co ltd
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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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • 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
    • H01M10/63—Control systems
    • H01M10/635—Control systems based on ambient temperature
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to the related field of new energy automobiles, and discloses a new energy automobile battery protection device, which comprises a main box body, wherein a battery protection cavity is arranged in the main box body, the upper side of the battery protection cavity is communicated with a ventilation cavity with an upward opening, the lower side of the battery protection cavity is communicated with a sliding rod cavity, a fan seat is connected in the inner wall of the ventilation cavity in a rotating and matching way, when an automobile runs, a fan is driven to rotate by utilizing the power of the automobile so as to cool the battery, when the automobile stops charging, if the battery generates heat, a heat dissipation motor is automatically started so as to drive the fan to rotate, so that the battery is cooled, meanwhile, the charging current is reduced, the combustion and explosion of the battery due to overhigh heating are avoided, and according to the temperature feedback of the battery, the rotating speed of the fan is higher when the temperature is higher, the charging current is smaller, so that the charging safety of the new energy automobile is ensured, and a plurality of buffer springs are arranged in the battery protection cavity, so that the automobile can avoid the combustion explosion caused by serious deformation of the battery when the automobile is suddenly impacted.

Description

New energy automobile battery protection device
Technical Field
The invention relates to the related field of new energy automobiles, in particular to a new energy automobile battery protection device.
Background
Pure electric vehicles among the new energy automobile, its energy comes from the battery completely, but the battery generates heat easily in the use, especially when charging, if fill electric pile unusual then the battery generate heat high then can make the battery damage even burning explosion, control center on present battery protection mainly relies on the car, but when parking charges, the car outage, the unable fine protection battery charging process of control center, simultaneously when the car receives powerful impact, the battery if seriously damage and lead to the deformation, then the battery very probably generates heat and explodes because of the short circuit, thereby cause the emergence of incident.
Disclosure of Invention
The invention aims to provide a new energy automobile battery protection device which can overcome the defects in the prior art, so that the practicability of equipment is improved.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention discloses a new energy automobile battery protection device, which comprises a main box body, wherein a battery protection cavity is arranged in the main box body, the upper side of the battery protection cavity is communicated with a ventilation cavity with an upward opening, the lower side of the battery protection cavity is communicated with a sliding rod cavity, the inner wall of the ventilation cavity is connected with a fan seat in a rotating fit manner, the outer side of the fan seat is provided with an annular rack cavity which is annularly arranged by taking the ventilation cavity as a center, the left side of the annular rack cavity is communicated with a driven straight gear cavity, the lower side of the driven straight gear cavity is provided with a driving gear cavity, the lower side of the driving gear cavity is provided with a heat dissipation motor which is positioned on the left side of the battery protection cavity, the upper end surface of the heat dissipation motor is fixedly connected with a motor shaft which extends upwards into the driving pulley cavity, the tail end of the upper end of the motor shaft is fixedly connected with a driving pulley, the upper end wall of the driving pulley cavity is connected with a straight gear which extends upwards into the driven pulley cavity in a rotating fit manner, and extends downwards into the driving pulley cavity The end of the upper side of the transmission gear cavity is fixedly connected with a driven straight gear, the end of the lower side of the driven straight gear shaft is fixedly connected with a driven pulley, the driven pulley and the driving pulley are connected with a transmission belt in a power fit manner, the right side of the battery protection cavity is communicated with a weight sliding cavity, the weight sliding cavity is connected with a sliding weight in a sliding fit manner, the upper end surface of the sliding weight and the upper end wall of the weight sliding cavity are fixedly connected with a memory spring, the upper end surface of the sliding weight is fixedly connected with a weight upper stay cord, the lower end surface of the sliding weight is fixedly connected with a resistance adjusting stay cord, the lower side of the battery protection cavity is communicated with a slider cavity which is in bilateral symmetry with the slider cavity as a center, the inner side of the slider cavity is connected with a sliding rod in a sliding fit manner, the upper end surface of the sliding rod is fixedly connected with a battery sliding seat which is in a sliding fit manner with the battery protection cavity, and a battery seat sliding cavity with an upward opening is arranged in the battery sliding seat.
On the basis of the technical scheme, a battery fixing seat is connected in a sliding cavity of the battery seat in a sliding fit manner, horizontal resistance springs are fixedly connected between the left, right, front and rear end walls of the battery fixing seat and the inner wall of the sliding cavity of the battery seat, a pressing resistance spring is fixedly connected between the lower end surface of the battery sliding seat and the lower end wall of the battery protection cavity, connecting rods which are symmetrical left and right with the sliding rods as centers are hinged on the lower end surface of the battery sliding seat, sliding blocks which are connected with the sliding block cavity in a sliding fit manner are hinged on the lower end surfaces of the connecting rods, a horizontal sliding rod which is connected with the sliding blocks in a sliding fit manner is fixedly connected between the left and right end walls of the sliding block cavity, an upward-pulling resistance spring is fixedly connected between the side end surface of the sliding block, which is close to the sliding rod cavity, and the side end wall of the sliding block cavity, and an upward-through fan cavity is arranged in the fan seat, fixedly connected with fan on the fan intracavity wall, battery protection chamber right side intercommunication is equipped with four equidistance distributions and the right heat dissipation ventilation chamber of opening, annular rack chamber right side intercommunication is equipped with straight-teeth gear sliding chamber, straight-teeth gear sliding chamber upside is equipped with the terminal surface tooth sliding chamber.
On the basis of the technical scheme, fixedly connected with is located on the outer disc of fan base annular rack intracavity and with driven straight-teeth gear meshed annular rack, straight-teeth gear sliding chamber lower extreme wall internal rotation fit is connected with and upwards extends and runs through straight-teeth gear sliding chamber extremely the terminal surface tooth axle of terminal surface tooth sliding intracavity, the epaxial spline fit of terminal surface tooth is connected with and is located the straight-teeth gear axle sleeve of straight-teeth gear sliding intracavity, the terminal fixedly connected with of straight-teeth gear axle sleeve upside can with annular rack meshed slip straight-teeth gear, the terminal normal running fit of straight-teeth gear axle sleeve downside is connected with straight-teeth gear axle sleeve seat, under the straight-teeth gear axle sleeve seat terminal surface with fixedly connected with straight-teeth gear spring between the straight-teeth gear sliding chamber lower extreme wall, on the pouring weight stay cord other end with straight-teeth gear axle sleeve seat lower extreme face fixed connection, terminal surface tooth sliding chamber upper end wall internal rotation fit is connected with and upwards extends to external downwardly extending to end gear sliding chamber The power input shaft in the face tooth sliding cavity, spline fit connection has the face tooth axle sleeve that is located the face tooth sliding cavity on the power input shaft, the terminal fixedly connected with slip face tooth of terminal surface tooth axle sleeve downside, the terminal normal running fit of face tooth axle sleeve upside is connected with face tooth axle sleeve seat.
On the basis of the technical scheme, a terminal surface tooth spring is fixedly connected between the upper end surface of the terminal surface tooth shaft sleeve seat and the upper end wall of the terminal surface tooth sliding cavity, a terminal surface tooth pull rope is fixedly connected to the upper end surface of the terminal surface tooth shaft sleeve seat, terminal surface teeth capable of being meshed with the sliding terminal surface teeth are fixedly connected to the upper end of the terminal surface tooth shaft, a sliding rheostat cavity positioned on the lower side of the heat dissipation motor is arranged on the left side of the battery protection cavity, a contact block sliding rod extending downwards to the lower end wall of the sliding rheostat cavity is fixedly connected in the upper end wall of the sliding rheostat cavity, a metal contact sliding block is connected to the contact block sliding rod in a sliding fit manner, a contact sliding block spring is fixedly connected between the lower end surface of the metal contact sliding block and the lower end wall of the sliding rheostat cavity, and the other end of the resistance adjusting pull rope is fixedly connected with the upper end surface of the metal contact sliding block, fixedly connected with is located between the end wall about the slide rheostat chamber resistance wire winding pole on contact piece slide bar right side, fixedly connected with is located on the resistance wire winding pole slide rheostat intracavity and can with the resistance wire winding of the terminal butt in metal contact slider right side, metal contact slider right side end with the outer disc butt of resistance wire winding, drive pulley chamber upside intercommunication is equipped with the take-up pulley chamber, fixedly connected with take-up pulley electro-magnet in the end wall of take-up pulley chamber.
On the basis of the technical scheme, a tensioning wheel shaft is fixedly connected between the lower end face of the tensioning wheel electromagnet and the lower end wall of the transmission wheel cavity, a tensioning wheel shaft sleeve positioned in the tensioning wheel cavity is connected to the tensioning wheel shaft in a spline fit mode, a tensioning wheel is connected to the tensioning wheel shaft sleeve in a rotating fit mode, a tensioning wheel spring is fixedly connected between the upper end face of the tensioning wheel shaft sleeve and the lower end face of the tensioning wheel electromagnet, and the other end of the end face tooth pull rope is fixedly connected with the upper end face of the tensioning wheel shaft sleeve.
The invention has the beneficial effects that: when the car traveles, the power drive fan that utilizes the car rotates, and make the battery cooling, when the car stops to charge, if the battery generates heat, heat dissipation motor automatic start, thereby the drive fan rotates, and make the battery cooling, reduce charging current simultaneously, avoid the battery because of generating heat too high and the explosion that burns, and according to battery temperature feedback, fan speed is fast more when the temperature is higher, charging current is less, thereby ensure new energy automobile's the safety of charging, a plurality of buffer spring that the battery protection intracavity set up simultaneously, make the car receive the impact suddenly, avoid the battery to warp seriously and lead to the explosion that burns.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated by the following examples in conjunction with the drawings.
Fig. 1 is a schematic view of the overall structure of a new energy automobile battery protection device of the invention.
Fig. 2 is an enlarged schematic view of a in fig. 1.
Fig. 3 is an enlarged schematic view of B in fig. 1.
Fig. 4 is an enlarged schematic view of C in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The new energy automobile battery protection device described in conjunction with fig. 1-4 comprises a main box body 10, a battery protection cavity 24 is arranged in the main box body 10, a ventilation cavity 15 with an upward opening is communicated with the upper side of the battery protection cavity 24, a slide bar cavity 29 is communicated with the lower side of the battery protection cavity 24, a fan seat 14 is connected with the inner wall of the ventilation cavity 15 in a rotating fit manner, an annular rack cavity 55 which is annularly arranged by taking the ventilation cavity 15 as a center is arranged on the outer side of the fan seat 14, a driven straight gear cavity 11 is communicated with the left side of the annular rack cavity 55, a driving pulley cavity 43 is arranged on the lower side of the driven straight gear cavity 11, a heat dissipation motor 38 which is positioned on the left side of the battery protection cavity 24 is arranged on the lower side of the driving pulley cavity 43, a motor shaft 39 which extends upwards into the driving pulley cavity 43 is fixedly connected with the upper end of the heat dissipation motor 38, a driving belt pulley 40 is fixedly connected with the upper end of the motor shaft 39, the upper end wall of the transmission belt wheel cavity 43 is connected with a driven spur gear shaft 13 which upwards extends to the driven spur gear cavity 11 and downwards extends to the transmission belt wheel cavity 43, the upper end of the transmission belt wheel cavity 43 is fixedly connected with a driven spur gear 12, the lower end of the driven spur gear shaft 13 is fixedly connected with a driven pulley 42, the driven pulley 42 is connected with a transmission belt 41 between the driving pulley 40 in a power fit manner, the right side of the battery protection cavity 24 is communicated with a weight sliding cavity 19, the weight sliding cavity 19 is connected with a sliding weight 21 in a sliding fit manner, a memory spring 18 is fixedly connected between the upper end surface of the sliding weight 21 and the upper end wall of the weight sliding cavity 19, the upper end surface of the sliding weight 21 is fixedly connected with an upper weight pull rope 20, and the lower end surface of the sliding weight 21 is fixedly connected with a resistance adjusting pull rope 22, the battery protection device is characterized in that the lower side of the battery protection cavity 24 is communicated with slider cavities 27 which are bilaterally symmetrical with the slider cavity 29 as a center, a slider 28 is connected in the slider cavity 29 in a sliding fit manner, the upper end face of the slider 28 is fixedly connected with a battery sliding seat 26 which is connected with the battery protection cavity 24 in a sliding fit manner, and a battery seat sliding cavity 36 with an upward opening is arranged in the battery sliding seat 26.
In addition, in one embodiment, a battery holder 37 is connected in a sliding fit manner in the battery holder sliding cavity 36, horizontal resistance springs 25 are fixedly connected between the left, right, front and rear end walls of the battery holder 37 and the inner wall of the battery holder sliding cavity 36, a downward-pressing resistance spring 30 is fixedly connected between the lower end surface of the battery sliding seat 26 and the lower end wall of the battery protection cavity 24, connecting rods 35 which are bilaterally symmetrical around the sliding rod 28 are hinged to the lower end surface of the battery sliding seat 26, a sliding block 34 which is connected with the sliding block cavity 27 in a sliding fit manner is hinged to the lower end surface of the connecting rod 35, a horizontal sliding rod 33 which is connected with the sliding block 34 in a sliding fit manner is fixedly connected between the left end wall and the right end wall of the sliding block cavity 27, an upward-pulling resistance spring 31 is fixedly connected between the end surface of the sliding block cavity 34, which is close to the side end surface of the sliding rod cavity 29, and the side end wall of the sliding block cavity 27, which is close to the sliding rod cavity 29, be equipped with the fan chamber 17 that link up from top to bottom in the fan seat 14, fixedly connected with fan 16 on the fan chamber 17 inner wall, 24 right sides intercommunication in battery protection chamber are equipped with four equidistance distributions and the right heat dissipation ventilation chamber 23 of opening, annular rack chamber 55 right side intercommunication is equipped with straight-teeth gear sliding chamber 49, straight-teeth gear sliding chamber 49 upside is equipped with terminal surface tooth sliding chamber 46.
In addition, in one embodiment, an annular rack 56 located in the annular rack cavity 55 and engaged with the driven spur gear 12 is fixedly connected to an outer circumferential surface of the fan base 14, an end face gear shaft 51 extending upward from the spur gear sliding cavity 49 to the end face gear sliding cavity 46 is connected to a lower end wall of the spur gear sliding cavity 49 in a rotationally fitting manner, a spur gear shaft sleeve 54 located in the spur gear sliding cavity 49 is connected to the end face gear shaft 51 in a spline fitting manner, a sliding spur gear 50 capable of being engaged with the annular rack 56 is fixedly connected to an upper end of the spur gear shaft sleeve 54, a spur gear shaft sleeve base 53 is connected to a lower end of the spur gear shaft sleeve 54 in a rotationally fitting manner, a spur gear spring 52 is fixedly connected between a lower end surface of the spur gear shaft sleeve base 53 and a lower end wall of the spur gear sliding cavity 49, and the other end of the weight upper pulling rope 20 is fixedly connected to a lower end surface of the spur gear shaft sleeve base 53, face tooth sliding chamber 46 upper end wall normal running fit is connected with and upwards extends to external downwardly extending to power input shaft 44 in the face tooth sliding chamber 46, spline fit is connected with and is located on the power input shaft 44 face tooth axle sleeve 47 in the face tooth sliding chamber 46, the terminal fixedly connected with slip terminal surface tooth 57 of face tooth axle sleeve 47 downside, the terminal normal running fit of face tooth axle sleeve 47 upside is connected with face tooth axle sleeve seat 58.
In addition, in one embodiment, a end face tooth spring 59 is fixedly connected between the upper end face of the end face tooth shaft sleeve seat 58 and the upper end wall of the end face tooth sliding cavity 46, an end face tooth pull rope 45 is fixedly connected to the upper end face of the end face tooth shaft sleeve seat 58, an end face tooth 48 capable of meshing with the sliding end face tooth 57 is fixedly connected to the upper end face of the end face tooth shaft 51, a sliding rheostat cavity 60 located on the lower side of the heat dissipation motor 38 is arranged on the left side of the battery protection cavity 24, a contact block sliding rod 65 extending downwards to the lower end wall of the sliding rheostat cavity 60 is fixedly connected to the upper end wall of the sliding rheostat cavity 60, a metal contact sliding block 64 is connected to the contact block sliding rod 65 in a sliding fit manner, a contact block spring 63 is fixedly connected between the lower end face of the metal contact sliding block 64 and the lower end wall of the sliding rheostat cavity 60, and the other end of the resistance adjusting pull rope 22 is fixedly connected to the upper end face of the metal contact sliding block 64, a resistance winding rod 61 located on the right side of the contact block sliding rod 65 is fixedly connected between the upper end wall and the lower end wall of the sliding rheostat cavity 60, a resistance winding wire 62 located in the sliding rheostat cavity 60 and capable of being abutted to the right end of the metal contact sliding block 64 is fixedly connected to the resistance winding rod 61, the right end of the metal contact sliding block 64 is abutted to the outer circular surface of the resistance winding wire 62, a tension pulley cavity 66 is communicated with the upper side of the transmission pulley cavity 43, and a tension pulley electromagnet 68 is fixedly connected to the inner end wall of the tension pulley cavity 66.
In one embodiment, a tension pulley shaft 69 is fixedly connected between a lower end surface of the tension pulley electromagnet 68 and a lower end wall of the pulley chamber 43, a tension pulley bushing 67 located in the tension pulley chamber 66 is spline-fitted to the tension pulley shaft 69, a tension pulley 70 is rotatably fitted to the tension pulley bushing 67, a tension pulley spring 71 is fixedly connected between an upper end surface of the tension pulley bushing 67 and a lower end surface of the tension pulley electromagnet 68, and the other end of the end surface tooth pull cord 45 is fixedly connected to an upper end surface of the tension pulley bushing 67.
The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.
As shown in fig. 1-4, when the device of the present invention is in the initial state, the power input shaft 44 is connected with the vehicle power, when the vehicle is running, the power input shaft 44 rotates, the vehicle battery is fixed in the battery fixing seat 37, the tension pulley electromagnet 68 is de-energized, the tension pulley spring 71 has a smaller elastic force than the end face tooth spring 59, the end face tooth pull rope 45 is in the tightened state, the sliding end face tooth 57 is engaged with the end face tooth 48, the tension pulley spring 71 is in the compressed state, the tension pulley 70 is in the tension pulley cavity 66, the transmission belt 41 is in the loosened state, the memory spring 18 is contracted by heat, the lower end face of the sliding weight 21 is attached to the lower end wall of the weight sliding cavity 19, the memory spring 18 is in the stretched state, the weight upper pull rope 20 is in the tightened state, the resistance adjustment pull rope 22 is in the tightened state, the weight upper pull rope 20 is heavier than the straight gear spring 52, the sliding straight gear 50 is not meshed with the annular rack 56, the resistance winding 62 is connected with the heat dissipation motor 38 in series, the two are connected with the charging circuit in parallel as a whole, and the tail end of the right side of the metal contact sliding block 64 is not abutted with the resistance winding 62;
sequence of mechanical actions of the whole device:
when the automobile starts to work, when the automobile runs, if the battery generates heat, the temperature in the battery protection cavity 24 rises, the memory spring 18 is heated to contract, thereby pulling the sliding weight 21, causing the sliding weight 21 to move upwards, thereby causing the pulling rope 20 on the weight to loosen, thereby causing the spur gear bush seat 53 to move upwards under the elastic force of the spur gear spring 52, thereby driving the spur gear bush 54 to move upwards, thereby causing the sliding spur gear 50 to move upwards to be meshed with the annular rack 56, at this time, the power input shaft 44 rotates to drive the end face gear bush 47 to rotate, thereby causing the sliding end face teeth 57 to rotate, thereby driving the end face teeth 48 to rotate, thereby causing the end face teeth shaft 51 to rotate, thereby driving the spur gear bush 54 to rotate, thereby causing the sliding spur gear 50 to rotate, thereby driving the annular rack 56 to rotate, thereby causing the fan seat 14 to rotate, thereby driving the fan 16 to rotate, so that the fan 16 generates downward wind, and the air in the battery protection cavity 24 is exhausted to the outside through the heat dissipation ventilation cavity 23, thereby reducing the temperature of the battery in the battery protection cavity 24;
when the automobile is parked and charged, the tensioning wheel electromagnet 68 is started, so that the tensioning wheel electromagnet 68 is electrified, the tensioning wheel shaft sleeve 67 is repelled, the tensioning wheel shaft sleeve 67 overcomes the tension force of the tensioning wheel spring 71 to move downwards, the tensioning wheel 70 is driven to move downwards into the transmission wheel cavity 43, so that the transmission belt 41 is supported tightly, meanwhile, the end surface tooth pull rope 45 is pulled, so that the end surface tooth shaft sleeve seat 58 overcomes the elastic force of the end surface tooth spring 59 to move upwards, the end surface tooth shaft sleeve 47 is driven to move upwards, the sliding end surface tooth 57 moves upwards to be disengaged from the end surface tooth 48, if the battery is charged, the temperature in the battery protection cavity 24 rises, so that the memory spring 18 is heated to contract, the sliding weight 21 is pulled to move upwards, the resistance adjusting pull rope 22 is pulled, so that the metal contact slider 64 overcomes the tension force of the contact slider spring 63 to move upwards to be abutted against the winding wire 62, the current flows through the resistance winding 62, the metal contact slider 64 and the contact block sliding rod 65 to the heat dissipation motor 38 through the lead, so that the heat dissipation motor 38 is started, the motor shaft 39 is driven to rotate, the driven belt pulley 42 is driven to rotate through the transmission pulley cavity 43, the driven spur gear shaft 13 is driven to rotate, the driven spur gear 12 is driven to rotate, the annular rack 56 is driven to rotate, the fan base 14 is driven to rotate, the fan 16 is driven to rotate, and the battery is cooled;
if the temperature of the battery rises, the memory spring 18 continues to contract, so that the resistance adjustment pull rope 22 continues to be pulled, the metal contact slide block 64 continues to move upwards, the current flowing to the heat dissipation motor 38 is increased, the rotating speed of the fan 16 is driven to be increased, the battery is rapidly cooled, and meanwhile, the current in the charging circuit is reduced, so that the current flowing to the battery is reduced, and the temperature of the battery is not increased any more;
when the vehicle is subjected to a lateral impact force, the battery is kept at an original position under the elastic force of the horizontal resistance spring 25, so that the acting force of the battery against the inner wall of the battery protection chamber 24 is reduced, thereby reducing the deformation degree of the battery, and when the vehicle is subjected to a longitudinal impact force, the battery is kept at the original position under the buffering action of the pressing resistance spring 30 and the pulling resistance spring 31, further reducing the deformation degree of the battery, thereby preventing the battery from being damaged and exploding.
The beneficial effects of the invention are: when the car goes, the power drive fan that utilizes the car rotates, and make the battery cooling, when the car stops to charge, if the battery generates heat, radiating motor automatic start, thereby the drive fan rotates, and make the battery cooling, reduce charging current simultaneously, avoid the battery because of generating heat too high and burning explosion, and according to battery temperature feedback, fan speed is fast more when the temperature is higher, charging current is less, thereby ensure new energy automobile's the safety of charging, a plurality of buffer spring that set up in the battery protection intracavity simultaneously, make the car receive the impact suddenly, avoid the battery to warp seriously and lead to the combustion explosion.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (1)

1. The utility model provides a new energy automobile battery protection device, includes the main tank body, its characterized in that: the battery protection device is characterized in that a battery protection cavity is arranged in the main box body, a ventilation cavity with an upward opening is formed in the upper side of the battery protection cavity in a communicating mode, a sliding rod cavity is formed in the lower side of the battery protection cavity in a communicating mode, a fan seat is connected to the inner wall of the ventilation cavity in a rotating and matching mode, an annular rack cavity is annularly formed in the outer side of the fan seat and is arranged by taking the ventilation cavity as the center, a driven straight gear cavity is formed in the left side of the annular rack cavity in a communicating mode, a transmission gear cavity is formed in the lower side of the driven straight gear cavity, a heat dissipation motor located on the left side of the battery protection cavity is arranged on the lower side of the transmission gear cavity, a motor shaft extending upwards into the transmission gear cavity is fixedly connected to the upper end face of the heat dissipation motor, a driving pulley is fixedly connected to the upper end of the motor shaft, a driven straight gear shaft extending upwards into the transmission gear cavity in a rotating and matching mode is connected to the upper end wall of the transmission gear cavity, the end of the upper side of the transmission belt wheel cavity is fixedly connected with a driven straight-tooth gear, the end of the lower side of the driven straight-tooth gear shaft is fixedly connected with a driven belt wheel, the driven belt wheel and the driving belt wheel are connected with a transmission belt in a power fit manner, the right side of the battery protection cavity is communicated with a weight sliding cavity, the weight sliding cavity is connected with a sliding weight in a sliding fit manner, the upper end surface of the sliding weight and the upper end wall of the weight sliding cavity are fixedly connected with a memory spring, the upper end surface of the sliding weight is fixedly connected with an upper stay cord of the weight, the lower end surface of the sliding weight is fixedly connected with a resistance adjusting stay cord, the lower side of the battery protection cavity is communicated with a slide block cavity which is symmetrical left and right by taking the slide block cavity as a center, the slide bar is connected in a sliding fit manner in the slide block cavity, and the upper end surface of the slide bar is fixedly connected with a battery sliding seat which is connected with the battery protection cavity in a sliding fit manner, a battery seat sliding cavity with an upward opening is arranged in the battery sliding seat; a battery fixing seat is connected in a sliding cavity of the battery seat in a sliding fit manner, horizontal resistance springs are fixedly connected between the left and right front end walls of the battery fixing seat and the inner wall of the sliding cavity of the battery seat, a downward-pressing resistance spring is fixedly connected between the lower end surface of the battery sliding seat and the lower end wall of the battery protection cavity, connecting rods which are symmetrical left and right with the sliding rods as centers are hinged on the lower end surface of the battery sliding seat, a sliding block which is connected with the sliding block cavity in a sliding fit manner is hinged on the lower end of each connecting rod, a horizontal sliding rod which is connected with the sliding block in a sliding fit manner is fixedly connected between the left and right end walls of the sliding block cavity, an upward-pulling resistance spring is fixedly connected between the side end surface of the sliding block close to the sliding rod cavity and the side end wall of the sliding block cavity close to the sliding rod cavity, a fan cavity which is communicated up and down is arranged in the fan seat, and a fan is fixedly connected on the inner wall of the fan cavity, the right side of the battery protection cavity is communicated with four heat dissipation ventilation cavities which are distributed at equal intervals and have right openings, the right side of the annular rack cavity is communicated with a straight gear sliding cavity, and the upper side of the straight gear sliding cavity is provided with an end face gear sliding cavity; fixedly connected with is located on the disc outside the fan base annular rack intracavity and with driven spur gear meshing's annular rack, straight-gear sliding chamber end wall rotation fit down is connected with and upwards extends to run through straight-gear sliding chamber extremely the terminal surface rachis of end surface teeth sliding chamber intracavity, spline fit is connected with and is located on the terminal surface rachis straight-gear sliding chamber's straight-gear shaft sleeve, straight-gear shaft sleeve upside terminal fixedly connected with can with annular rack meshing's slip straight-gear, straight-gear shaft sleeve downside terminal rotation fit is connected with straight-gear shaft sleeve seat, straight-gear shaft sleeve seat down terminal surface with fixedly connected with spur gear spring between the straight-gear sliding chamber end wall down, on the pouring weight the stay cord other end with end surface fixed connection under the straight-gear shaft sleeve seat, end surface teeth sliding chamber upper end wall rotation fit is connected with and upwards extends to external downwardly extending extremely power input in end surface teeth sliding chamber is to be connected with The end surface tooth shaft sleeve is positioned in the end surface tooth sliding cavity, the tail end of the lower side of the end surface tooth shaft sleeve is fixedly connected with a sliding end surface tooth, and the tail end of the upper side of the end surface tooth shaft sleeve is connected with an end surface tooth shaft sleeve seat in a rotating fit manner; the end face tooth shaft sleeve seat is fixedly connected with an end face tooth spring between the upper end face of the end face tooth shaft sleeve seat and the upper end wall of the end face tooth sliding cavity, the upper end face of the end face tooth shaft sleeve seat is fixedly connected with an end face tooth pull rope, the tail end of the upper side of the end face tooth shaft is fixedly connected with an end face tooth capable of being meshed with the sliding end face tooth, the left side of the battery protection cavity is provided with a sliding rheostat cavity positioned on the lower side of the heat dissipation motor, the upper end wall of the sliding rheostat cavity is fixedly connected with a contact block sliding rod extending downwards to the lower end wall of the sliding rheostat cavity, the contact block sliding rod is connected with a metal contact sliding block in a sliding fit manner, a contact sliding block spring is fixedly connected between the lower end face of the metal contact sliding block and the lower end wall of the sliding rheostat cavity, the other end of the resistance adjusting pull rope is fixedly connected with the upper end face of the metal contact sliding rheostat cavity, and a resistance winding rod positioned on the right side of the contact block sliding rod is fixedly connected between the upper end wall and the upper end wall of the sliding rheostat cavity, the resistance winding rod is fixedly connected with a resistance winding which is positioned in the cavity of the sliding rheostat and can be abutted against the tail end of the right side of the metal contact sliding block, the tail end of the right side of the metal contact sliding block is abutted against the outer circular surface of the resistance winding, the upper side of the driving pulley cavity is communicated with a tensioning pulley cavity, and a tensioning pulley electromagnet is fixedly connected in the upper end wall of the tensioning pulley cavity; the tension pulley is characterized in that a tension pulley shaft is fixedly connected between the lower end face of the tension pulley electromagnet and the lower end wall of the transmission pulley cavity, a tension pulley shaft sleeve located in the tension pulley cavity is connected to the tension pulley shaft in a spline fit mode, a tension pulley is connected to the tension pulley shaft sleeve in a rotating fit mode, a tension pulley spring is fixedly connected between the upper end face of the tension pulley shaft sleeve and the lower end face of the tension pulley electromagnet, and the other end of the end face tooth pull rope is fixedly connected with the upper end face of the tension pulley shaft sleeve.
CN202110020053.XA 2021-01-07 2021-01-07 New energy automobile battery protection device Active CN112563619B (en)

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CN113851778B (en) * 2021-08-27 2023-05-05 广西科技大学 Battery protection device for new energy automobile
CN118231821B (en) * 2024-04-12 2024-08-30 江苏十翼能源科技有限公司 Self-short-circuit-preventing storage battery

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