CN111477812A - Battery box and battery package - Google Patents

Battery box and battery package Download PDF

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Publication number
CN111477812A
CN111477812A CN202010465945.6A CN202010465945A CN111477812A CN 111477812 A CN111477812 A CN 111477812A CN 202010465945 A CN202010465945 A CN 202010465945A CN 111477812 A CN111477812 A CN 111477812A
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CN
China
Prior art keywords
box body
battery box
battery
heat dissipation
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202010465945.6A
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Chinese (zh)
Inventor
张孝敏
张启泰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Perfect Start Battery Technology Co ltd
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Shenzhen Perfect Start Battery Technology Co ltd
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Publication date
Application filed by Shenzhen Perfect Start Battery Technology Co ltd filed Critical Shenzhen Perfect Start Battery Technology Co ltd
Priority to CN202010465945.6A priority Critical patent/CN111477812A/en
Publication of CN111477812A publication Critical patent/CN111477812A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • H01M10/656—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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a battery box body and a battery pack system, which comprise a box body assembly, a heat dissipation assembly, a hand-held assembly and a reinforcing rib assembly, wherein the box body assembly comprises a battery box body and an upper cover, and the upper cover covers the battery box body. The invention relates to a battery box body and a battery pack, which can realize the output of small volume, high voltage and high power and can also radiate heat in time by arranging a box body component and a radiating component, ensure that a single battery core works at a proper temperature, ensure that the battery pack can normally work, avoid the condition of short circuit caused by large heat productivity, improve the reliability of the battery box body and further improve the use safety of the battery pack. And still through setting up portable subassembly and strengthening rib subassembly, can conveniently carry out the transport of battery box and improve the structural stability of battery box.

Description

Battery box and battery package
Technical Field
The invention relates to the field of battery boxes, in particular to a battery box and a battery pack.
Background
The battery box is a battery pack consisting of a plurality of single battery cores, a box body, a battery management system, relevant installation structural members (equipment) and the like, and is provided with a battery box structure, battery box monitoring equipment, a battery box connector, battery box environmental control equipment and the like which meet the standard. The battery box is mainly used for helping the battery to ventilate and radiate heat, can insulate and prevent water for the battery, and can also protect the battery from collision in addition.
However, the existing battery box generally includes a plurality of single battery cells, generally, the structural volume of the battery box with high voltage and high function is large, and the battery box is inconvenient to carry, and the existing battery box with small volume cannot be integrated with a large number of batteries, so that the output of high voltage and high power cannot be realized; moreover, the existing battery box body has poor heat dissipation, so that the heat productivity of the internal monomer battery cell is easily overlarge, the battery pack can not work normally, the short circuit is easily caused due to large heat productivity, and a fire disaster can be caused in serious cases.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a battery box body and a battery pack, which can realize the output of small volume, high voltage and high power, can timely dissipate heat, ensure that a single battery cell works at a proper temperature, ensure that the battery pack can normally work, avoid the occurrence of short circuit caused by large heat productivity, improve the reliability of the battery box body and further improve the use safety of the battery pack.
The purpose of the invention is realized by the following technical scheme:
a battery case, comprising:
the battery box comprises a box body assembly, a battery box body and a battery box cover, wherein the box body assembly comprises a battery box body and an upper cover, the upper cover covers the battery box body, the battery box body is provided with a mounting area, and the mounting area is used for placing a single battery cell;
the battery box comprises a battery box body, a heat dissipation assembly and a control module, wherein the heat dissipation assembly comprises a first heat dissipation fan and a second heat dissipation fan, a first fixing hole and a second fixing hole are formed in the side wall of the battery box body, the first heat dissipation fan and the second heat dissipation fan are respectively arranged on the battery box body, the first heat dissipation fan is installed in the first fixing hole, and the first heat dissipation fan is installed in the first fixing hole;
the battery box comprises a battery box body, a handle assembly and a handle, wherein the battery box body is provided with a battery box cover, the handle assembly comprises two handles, the two handles are respectively arranged on the outer side of the battery box body, and the two handles are respectively positioned on the opposite outer side walls of the battery box body; and
the reinforcing rib assembly comprises a plurality of fixing strips, and the fixing strips are respectively arranged at the bottom of the battery box body.
In one embodiment, the first heat dissipation fan includes a first protection cover, a first fan, and a first filter, the first protection cover is disposed in the battery box body, the first protection cover is disposed outside the first fixing hole, the first fan is mounted in the first protection cover, and the first filter is mounted on the first fixing hole.
In one embodiment, the second heat dissipation fan includes a second protection cover, a second fan and a second filter screen, the second protection cover is disposed in the battery box body, the second protection cover is disposed outside the second fixing hole, the second fan is mounted in the second protection cover, and the second filter screen is mounted on the second fixing hole.
In one embodiment, in one of the handles, the handle includes a mounting plate, a force-bearing plate and two side plates, the mounting plate is disposed on an outer side wall of the battery box body, the force-bearing plate is disposed on the mounting plate, the two side plates are respectively disposed at two sides of the mounting plate, and the mounting plate, the force-bearing plate and the two side plates together form a force-bearing groove.
In one embodiment, in one fixing strip, the fixing strip comprises a support plate and two clamping pieces, the support plate is installed on the bottom of the battery box body, the two clamping pieces are respectively arranged at two side positions of the support plate, and the two clamping pieces are respectively arranged on the side wall of the battery box body.
In one embodiment, the supporting plate is provided with a groove, the opening of the groove faces the bottom of the battery box body, and two sides of the supporting plate are respectively provided with an extending piece, and the extending pieces are attached to the bottom of the battery box body.
In one embodiment, the battery box body further comprises a display assembly, and the display assembly is arranged on the outer side wall of the battery box body.
In one embodiment, the display assembly comprises a display screen and a display fixing plate, the display fixing plate is arranged on the outer side wall of the battery box body, and the display screen is arranged on the display fixing plate.
In one embodiment, the battery box body is further provided with a plurality of heat dissipation long holes, and a space is arranged between the heat dissipation long holes.
The invention also provides a battery pack system which comprises the battery box body.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention relates to a battery box body and a battery pack, which can realize the output of small volume, high voltage and high power and can also radiate heat in time by arranging a box body component and a radiating component, ensure that a single battery core works at a proper temperature, ensure that the battery pack can normally work, avoid the condition of short circuit caused by large heat productivity, improve the reliability of the battery box body and further improve the use safety of the battery pack. And still through setting up portable subassembly and strengthening rib subassembly, can conveniently carry out the transport of battery box and improve the structural stability of battery box.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery case according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a battery case shown in FIG. 1 from a first perspective;
FIG. 3 is a schematic diagram of a battery case shown in FIG. 1 from a second perspective;
FIG. 4 is a schematic diagram of a battery case shown in FIG. 1 from a third perspective;
fig. 5 is a schematic structural diagram of a single cell according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a bottom plate of the battery case body shown in fig. 1;
FIG. 7 is a schematic view showing the structure of a separator of the battery case shown in FIG. 1;
fig. 8 is a schematic structural diagram of a battery pack system according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a battery pack system according to another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a main control unit BCU of the battery pack system according to the embodiment shown in fig. 8.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a battery case 10 includes: the battery box comprises a box body assembly 1, a heat dissipation assembly 2, a hand-held assembly 3 and a reinforcing rib assembly 4, wherein the box body assembly 1 is used for placing a battery pack; the heat dissipation assembly 2 is used for achieving the effect of dissipating heat of the battery pack; the hand-held assembly 3 is used for lifting the box body, so that the box body is convenient to transfer and carry; the reinforcing rib assembly 4 is used for reinforcing the structural strength of the bottom of the box body.
Referring to fig. 2, the box assembly 1 includes a battery box body 11 and an upper cover 12, the upper cover covers the battery box body, the battery box body is provided with a mounting area, and the mounting area is used for placing a single battery cell. The battery box body 11 is used for accommodating a battery pack; the upper cover 12 is used for forming a closed space for the box body, and plays a role in protection.
Referring to fig. 1, the heat dissipation assembly 2 includes a first heat dissipation fan 21 and a second heat dissipation fan 22, a first fixing hole and a second fixing hole are formed on a side wall of the battery box body 11, the first heat dissipation fan and the second heat dissipation fan are respectively disposed on the battery box body, the first heat dissipation fan is mounted in the first fixing hole, and the first heat dissipation fan is mounted in the first fixing hole. It should be noted that the first cooling fan 21 and the second cooling fan 22 are both used for achieving cooling, so that the battery pack is at a proper temperature, and the battery pack can work normally.
Referring to fig. 1, the handle assembly 3 includes two handles, the two handles are respectively disposed at the outer side of the battery box body, and the two handles are respectively located at the opposite outer side walls of the battery box body. It should be noted that, by arranging the two handles, the battery box body can be conveniently lifted.
Referring to fig. 3, the reinforcing rib assembly 4 includes a plurality of fixing strips, and each fixing strip is disposed at a bottom position of the battery box body. It should be noted that, the fixing strips are respectively fixed on the bottom plate of the battery box body, so that the structural strength of the bottom of the box body can be enhanced, the box body can bear the weight of more batteries, the situation that the bottom plate falls off cannot occur, and the stability of the box body structure is improved.
So, through setting up box subassembly and radiator unit, when can realizing the output of small volume high voltage high power, can also in time dispel the heat, guarantee that monomer electricity core works under suitable temperature, guarantee that the battery package can normal work, avoid appearing because of giving out heat the big condition that appears the short circuit, improve the reliability of battery box, and then improve the security that the battery package used. And still through setting up portable subassembly and strengthening rib subassembly, can conveniently carry out the transport of battery box and improve the structural stability of battery box.
Referring to fig. 2 and 4, the first heat dissipation fan 21 includes a first protective cover 21a, a first fan 21b and a first filter 21c, the first protective cover is disposed in the battery box body and is covered outside the first fixing hole, the first fan is mounted in the first protective cover, and the first filter is mounted on the first fixing hole. The first protective cover 21a is used to protect the fan from external damage; the first fan 21b is used for dissipating heat, helping the battery pack dissipate heat, and protecting the battery pack so that the battery pack can work at a proper temperature; the first filter 21c is used to prevent dust or other foreign materials from entering the fan.
It should be further noted that the second heat dissipation fan includes a second protection cover, a second fan and a second filter screen, the second protection cover is disposed inside the battery box body, the second protection cover is disposed outside the second fixing hole, the second fan is installed inside the second protection cover, and the second filter screen is installed on the second fixing hole. The function of the second heat dissipation fan is the same as that of the first heat dissipation fan, and detailed description thereof is omitted.
Referring to fig. 2, in one of the handles, the handle includes an installation plate 31, a stress plate 32 and two side plates 33, the installation plate is disposed on an outer side wall of the battery box body, the stress plate is disposed on the installation plate, the two side plates are respectively disposed at two sides of the installation plate, and the installation plate, the stress plate and the two side plates together form a stress groove. It should be noted that the mounting plate 31 is used for being fixed on the box body; the stress plate 32 is used for realizing a lifting function; the side plate 33, the mounting plate 31 and the stress plate 32 form a stress groove together, so that the lifting operation is convenient.
Referring to fig. 3, in one of the fixing strips, the fixing strip includes a supporting plate 41 and two clamping pieces 42, the supporting plate is mounted on the bottom of the battery box body, the two clamping pieces are respectively disposed at two sides of the supporting plate, and the two clamping pieces are respectively disposed on the side walls of the battery box body. It should be noted that the supporting plate 41 is used for supporting; the clip 42 is used for further securing to the case.
Referring to fig. 4, the supporting plate is provided with a groove 43, an opening of the groove faces the bottom of the battery box body, and two sides of the supporting plate are respectively provided with an extending piece 44, and the extending pieces are attached to the bottom of the battery box body. It should be noted that the extension piece 44 serves to further enhance the fixing function, so that the reinforced fixing of the whole fixing strip is more stable.
Referring to fig. 1, the battery box further includes a display assembly 5 disposed on an outer sidewall of the battery box body. Specifically, the display module 5 includes a display screen 51 and a display fixing plate 52, the display fixing plate is disposed on the outer side wall of the battery box body, and the display screen is disposed on the display fixing plate. It should be noted that the display screen is used for displaying; the display fixing plate 52 is used for fixing the display screen.
Referring to fig. 2, the battery box body is further provided with a plurality of heat dissipation long holes 6, and a space is respectively arranged between the heat dissipation long holes. So, through setting up the heat dissipation slot hole, can further improve the radiating effect.
The invention also provides a battery pack system which comprises the battery box body. The battery pack system further comprises a plurality of battery packs, and each battery pack comprises a plurality of single battery cells. Because the single electric cores are required to be fixed on the battery box body, each single electric core is erected on the battery box body, the distance between the single electric cores cannot be too large, if the distance is too large, the whole battery box body is too large, and the space is wasted, and if the distance between the single electric cores is too small, the mutual influence conditions, such as heat dissipation performance, are easy to occur; in addition, in order to ensure that the battery pack does not collide with each other during transportation, the battery packs must be firmly fixed in the battery box. Based on this, in an embodiment, for example, please refer to fig. 5 and fig. 6, a bottom plate 13 is disposed on the battery box body, a plurality of fixing slots 14 are disposed on the bottom plate, and both the horizontal distance and the vertical distance between adjacent fixing slots are 1mm to 6mm, and a plurality of folding edges 15 are further disposed on the bottom plate at the periphery of each fixing slot, in one single battery cell, a double-sided adhesive layer 71 is disposed on the bottom of the single battery cell, and a protruding structure 72 is disposed on the sidewall of the single battery cell, when the single battery cell is placed in the fixing slot, the double-sided adhesive layer on the single battery cell is attached to the bottom of the groove, and the folding edges on the bottom plate are fastened to the protruding structure of the single battery cell, so that the single battery cell can be firmly mounted on the bottom plate of the battery box body, and thus, the single battery cells can be, and can also guarantee in the transportation, can not take place the mutual collision between the monomer electricity core. In this embodiment, the horizontal distance of fixed slot is 2mm, and vertical distance is 3mm, or horizontal distance is 3mm, and vertical distance is 2mm, or horizontal distance and vertical distance are 3mm or 2 mm. Further, the hem is the hem structure of many radians, so, through setting up many radians hem structure, can improve the pressure of lock, further improve structural stability.
Further, the hem is provided with two, two the hem respectively the symmetry set up in the both sides limit of fixed slot, so, can realize the lock on the both sides position of the protruding structure of monomer electricity core to can improve the stability of monomer electricity core in the fixed slot with monomer electricity core lock, further avoid bumping between the monomer electricity core.
For another example, in order to further ensure that the single battery cells do not collide during transportation, for example, referring to fig. 7, the battery box further includes a partition plate 81, the partition plate is provided with a plurality of battery embedding holes 82, each of the battery embedding holes is arranged on the partition plate in a rectangular array, and each of the battery embedding holes is used for fixing the single battery cells; the battery box body further comprises a plurality of jacking components, each jacking component is arranged on the partition plate, in one jacking component, each jacking component comprises a jacking column 83 and a sucker 84, each jacking column is arranged on the partition plate, and each sucker is arranged at one end, far away from the partition plate, of each jacking column. It should be noted that the partition board is used for placing the single battery cores and isolating the single battery cores, so that collision between adjacent single battery cores is avoided, the safety of the battery is improved, the jacking column is used for jacking and being supported on the side wall of the battery box body, the sucker is arranged on the side wall of the battery box body and is adsorbed on the side wall of the battery box body after being arranged on the jacking column, and the partition board can be stably and firmly arranged in the installation area of the battery box body through the structure of the sucker and the jacking column, and meanwhile, mutual collision between the single battery cores can be avoided, so that the safety of the battery pack is improved.
It can be understood that with the development of the current electronic technology, the requirements of small volume, light weight and high power energy are higher and higher, especially the requirement of instantaneous high power. The existing battery pack systems cannot provide high-voltage and high-power energy, so that the requirements of users cannot be met in the using process, and some high-power battery packs are large in size and inconvenient to carry and transport; and the current battery pack system is easy to have unstable power supply, which causes the battery pack system not to be used normally.
Referring to fig. 8, a battery pack system includes: the main control unit BCU100, the shunt 200, the relay assembly 300 and the plurality of battery packs 400; it should be noted that the main control unit BCU100 is configured to collect voltage, current, and other battery data of each battery pack; the shunt 200 is used for measuring the current of the battery pack; the relay assembly 300 is used for controlling the charging and power supply of the battery pack to be switched on and off; the battery pack 400 is used as an energy storage power supply to supply power or is charged by an external charger.
Referring to fig. 8, the main control unit BCU is respectively connected to each of the battery packs, a current detection end of the main control unit BCU is connected to the shunt, and a total voltage detection end of the main control unit BCU is connected to the relay assembly.
The relay assembly 300 includes a pre-charge relay 310, a main positive relay 320 and a charge relay 330, which are respectively connected to a main voltage detection terminal of the main control unit BCU. It should be noted that the pre-charge relay 310 is used for controlling the pre-charge state of the battery pack, so as to pre-charge the battery pack; the main positive relay 320 is used for controlling the output of the battery pack, so that power supply to an external device or external equipment can be realized; the charging relay 330 is used for charging the battery pack to realize the energy storage function of the battery pack.
Further, main control unit BCU100 through total voltage detection line respectively with pre-charge relay 310, total positive relay 320 and charging relay 330 are connected, through setting up total voltage detection line, then can real-time detection battery pack's total voltage, can realize outwards exporting high voltage in the power supply, when charging, then can avoid voltage too big, damage the monomer electricity core in the battery pack, and then can avoid monomer electricity core to appear overcharging the problem of putting, also can avoid monomer electricity core because of voltage is too big, and arouse the danger of generating heat, protect monomer electricity core, improve battery pack's security and reliability.
In one battery pack, the battery pack 400 includes a slave control unit BMU410 and a plurality of battery cells 420, an output end of the slave control unit BMU is connected to the master control unit BCU, an acquisition end of the slave control unit BMU is connected to each of the battery cells, and the battery cells are sequentially connected in series. It should be noted that the slave control unit BMU410 is configured to collect voltage, current, and temperature data of each individual battery cell, and send the data to the master control unit BCU; each of the individual cells 420 is configured to store energy and output a large voltage and a large power.
Therefore, by arranging the main control unit BCU, the voltage of each battery pack can be acquired in real time, the relay assembly outputs the voltage outwards or charges the battery pack, and after the single battery cells in the battery pack are connected in series, the voltage and the current can be maximally superposed, so that the output of high voltage and high power can be realized; and through setting up the shunt, can realize gathering the electric current that lets in the battery package, and then realize the detection to the electric current, when the electric current is too big or other unusual appearing, then can in time carry out safeguard measure, prolong the life of battery. In addition, the battery pack system can provide more stable power supply capability compared with the conventional battery pack by arranging a plurality of battery packs and connecting the battery packs in series.
Referring to fig. 8, a positive current detection line 110 and a negative current detection line 120 are arranged on the main control unit BCU, a positive connection end and a negative connection end are arranged on the shunt, the positive current detection line is connected with the positive connection end of the shunt, the negative current detection line is connected with the negative connection end of the shunt, and the negative connection end of the shunt is used for being connected with the total negative end of the battery pack. It should be noted that the positive current detection line 110 of the main control unit BCU is used for collecting the current of the positive connection end of the shunt; the negative current detection line 120 of the main control unit BCU is used for collecting the current of the negative connection end of the shunt, so that the current input into the battery pack can be monitored in real time, and the current flowing into the battery pack can be prevented from being too large.
Referring to fig. 8, the relay assembly further includes a master negative relay 340, which is connected to the shunt. It should be noted that the master negative relay 340 is used as a switch, that is, a switch for controlling the connection of the battery pack to the outside. So, through setting up total negative relay 340, can control the battery package total negative terminal with outside being connected, when needs supply power or when charging, then need close this total negative relay and total positive relay to just can realize the function of charging or supplying power.
Referring to fig. 8, in one battery pack, the battery pack 400 further includes a plurality of collecting lines 430, and each collecting line is connected to each single battery cell in a one-to-one correspondence manner. It should be noted that the acquisition line 430 is used to acquire information such as current, voltage, and temperature of the individual battery cells.
Referring to fig. 8, the master control unit BCU is connected to each slave control unit BMU through a CAN bus. It should be noted that, by setting the CAN bus, the connection between the master control unit and the slave control unit CAN be conveniently realized, and the validity and reliability of the acquisition CAN be improved by setting the CAN bus.
Referring to fig. 9, the battery pack system further includes a vehicle control unit 500, and the vehicle control unit is connected to the main control unit BCU. The vehicle controller is used for controlling the vehicle machine, and when the battery pack system is connected with the vehicle controller, the vehicle controller can form a vehicle-mounted system to control the electric vehicle; and the electric vehicle further comprises an instrument device, so that a complete vehicle-mounted system is formed, and the electric vehicle can be powered and provide corresponding driving force. Specifically, the vehicle control unit is connected with the main control unit BCU through the vehicle CAN, so that the battery data CAN be conveniently connected into the vehicle control unit.
Referring to fig. 9, the battery pack system further includes a charger 600, and the charger is connected to the main control unit BCU. It should be noted that the charger 600 is configured to charge the single battery cells of the battery pack system, and when the electric quantity of the single battery cells is insufficient, the main control unit BCU is connected to the charger, and then the charger is connected to the total negative relay and the total positive relay in the battery pack system, so as to charge the single battery cells in the battery pack, and ensure that the battery pack has sufficient electric quantity.
Referring to fig. 9, the battery pack system further includes a diagnosis upper computer 700 connected to the main control unit BCU. It should be noted that, after the diagnosis host computer 700 is used for the connection of the main control unit BCU, the diagnosis and detection of the battery pack system can be realized. In this embodiment, the diagnosis host computer 700 may be a computer.
It should be further noted that, referring to fig. 10, the main control unit BUC100 further includes a power management module 101, a sound alarm module 102, a light-emitting alarm module 103, an energy input module 104, an energy output module 105, a management system starting module 106, and a sampling module 107, which are controlled together to execute operations. Therefore, the power supply management module is arranged for managing the output power supply state in the battery pack; the sound alarm module is used for giving an alarm sound, and when the battery pack system is abnormal, the sound alarm module gives an alarm sound so that a user can check the condition of the battery pack system in time; the light-emitting alarm module is used for being matched with the sound alarm module to realize the function of alarming simultaneously; the energy input module and the energy output module are used for controlling the input and the output of the electric quantity of the battery pack; the management system starting module is used as a switch to control the starting and the closing of the battery pack system; the sampling module is used for collecting the battery pack data.
Specifically, be connected with the sampling module on the group battery, in this embodiment, the sampling module is equipped with a plurality of sampling input ends for gather the voltage of every monomer electricity core, and protect every section of monomer electricity core. The lithium ion battery pack is further provided with a current safety module, the lithium ion battery pack supplies power to the execution switch module through the current safety module, and when the current exceeds the rated current of the circuit board, the lithium ion battery pack can be automatically protected. It should be noted that the current fuse module is a shunt.
In this embodiment, the main control unit BCU further includes a processing module, and the processing module is connected with an electric quantity display module 108 for helping to display the battery capacity. In the embodiment, a temperature detection module 109 is further arranged for detecting the temperature of the battery pack, if the temperature of the battery pack is too high, the service life of the battery is affected, and when the temperature of the battery pack is too high, the main loop is cut off through the temperature detection module.
In this embodiment, the hybrid processing module is connected with the safety transportation switch module 401, so that the safety of battery transportation can be ensured, and when the battery is transported and stored, the safety transportation switch module can be switched on, so that the positive and negative poles of the battery have no voltage and current output, thereby ensuring no accidental short circuit, facilitating the installation on an automobile, and closing the safety transportation switch module during the use. In this embodiment, the processing module is further connected with a forced start delay module, and the forced delay start module is used for starting the battery and forcibly switching the battery to recover so as to start the engine after the MOS transistor cuts off the main circuit.
In the use, if the driver stops and stalls, forgets to turn off the light and use big electrical apparatus, start after the battery discharges a period, can the automatic start overdischarge protection circuit, do not have the current output, but leave certain electric quantity, as long as press the compulsory starting switch, can start the engine, avoid the car trailer that breaks down. The battery protection board is added in the automobile using the lithium ion starting battery, and the lithium ion battery in the electric automobile can be well protected by the invention, so that the service life of the battery is prolonged, and the use safety of the battery is improved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention relates to a battery box body and a battery pack, which can realize the output of small volume, high voltage and high power and can also radiate heat in time by arranging a box body component and a radiating component, ensure that a single battery core works at a proper temperature, ensure that the battery pack can normally work, avoid the condition of short circuit caused by large heat productivity, improve the reliability of the battery box body and further improve the use safety of the battery pack. And still through setting up portable subassembly and strengthening rib subassembly, can conveniently carry out the transport of battery box and improve the structural stability of battery box.
The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A battery case, comprising:
the battery box comprises a box body assembly, a battery box body and a battery box cover, wherein the box body assembly comprises a battery box body and an upper cover, the upper cover covers the battery box body, the battery box body is provided with a mounting area, and the mounting area is used for placing a single battery cell;
the battery box comprises a battery box body, a heat dissipation assembly and a control module, wherein the heat dissipation assembly comprises a first heat dissipation fan and a second heat dissipation fan, a first fixing hole and a second fixing hole are formed in the side wall of the battery box body, the first heat dissipation fan and the second heat dissipation fan are respectively arranged on the battery box body, the first heat dissipation fan is installed in the first fixing hole, and the first heat dissipation fan is installed in the first fixing hole;
the battery box comprises a battery box body, a handle assembly and a handle, wherein the battery box body is provided with a battery box cover, the handle assembly comprises two handles, the two handles are respectively arranged on the outer side of the battery box body, and the two handles are respectively positioned on the opposite outer side walls of the battery box body; and
the reinforcing rib assembly comprises a plurality of fixing strips, and the fixing strips are respectively arranged at the bottom of the battery box body.
2. The battery box body as claimed in claim 1, wherein the first heat dissipation fan includes a first protection cover, a first fan and a first filter, the first protection cover is disposed inside the battery box body and disposed outside the first fixing hole, the first fan is mounted inside the first protection cover, and the first filter is mounted on the first fixing hole.
3. The battery box of claim 1, wherein the second heat dissipation fan comprises a second protective cover, a second fan and a second filter, the second protective cover is disposed inside the battery box body, the second protective cover covers the second fixing hole, the second fan is mounted inside the second protective cover, and the second filter is mounted on the second fixing hole.
4. The battery box body as claimed in claim 1, wherein in one of the handles, the handle includes a mounting plate, a force-bearing plate and two side plates, the mounting plate is disposed on an outer side wall of the battery box body, the force-bearing plate is disposed on the mounting plate, the two side plates are respectively disposed at two side positions of the mounting plate, and the mounting plate, the force-bearing plate and the two side plates together enclose a force-bearing groove.
5. The battery box body as claimed in claim 1, wherein in one of the fixing strips, the fixing strip includes a support plate and two clamping pieces, the support plate is mounted on the bottom of the battery box body, the two clamping pieces are respectively disposed at positions on both sides of the support plate, and the two clamping pieces are respectively disposed on the side walls of the battery box body.
6. The battery box body as claimed in claim 5, wherein the supporting plate is provided with a groove, the opening of the groove faces the bottom of the battery box body, and two sides of the supporting plate are respectively provided with an extending piece, and the extending pieces are attached to the bottom of the battery box body.
7. The battery box body as claimed in claim 1, further comprising a display assembly disposed on an outer sidewall of the battery box body.
8. The battery box body as claimed in claim 7, wherein the display assembly comprises a display screen and a display fixing plate, the display fixing plate is disposed on an outer side wall of the battery box body, and the display screen is disposed on the display fixing plate.
9. The battery box body as claimed in claim 1, wherein the battery box body is further provided with a plurality of heat dissipation long holes, and a space is respectively arranged between the heat dissipation long holes.
10. A battery pack system comprising the battery case according to any one of claims 1 to 9.
CN202010465945.6A 2020-05-27 2020-05-27 Battery box and battery package Withdrawn CN111477812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010465945.6A CN111477812A (en) 2020-05-27 2020-05-27 Battery box and battery package

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010465945.6A CN111477812A (en) 2020-05-27 2020-05-27 Battery box and battery package

Publications (1)

Publication Number Publication Date
CN111477812A true CN111477812A (en) 2020-07-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010465945.6A Withdrawn CN111477812A (en) 2020-05-27 2020-05-27 Battery box and battery package

Country Status (1)

Country Link
CN (1) CN111477812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115692923A (en) * 2022-11-03 2023-02-03 惠州市杰优实业有限公司 Heat dissipation power box structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115692923A (en) * 2022-11-03 2023-02-03 惠州市杰优实业有限公司 Heat dissipation power box structure
CN115692923B (en) * 2022-11-03 2025-07-15 惠州市杰优实业有限公司 Heat dissipation power box structure

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Application publication date: 20200731