CN114256511A - Annular heat-dissipation waterproof lithium battery pack assembly and preparation process - Google Patents

Annular heat-dissipation waterproof lithium battery pack assembly and preparation process Download PDF

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Publication number
CN114256511A
CN114256511A CN202111360948.4A CN202111360948A CN114256511A CN 114256511 A CN114256511 A CN 114256511A CN 202111360948 A CN202111360948 A CN 202111360948A CN 114256511 A CN114256511 A CN 114256511A
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CN
China
Prior art keywords
battery pack
cylinder
insulating
annular
plate
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Granted
Application number
CN202111360948.4A
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Chinese (zh)
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CN114256511B (en
Inventor
陈大波
彭青松
蔡金林
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Zhejiang Weilaiyou Lithium New Energy Technology Co ltd
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Zhejiang Weilaiyou Lithium 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • 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
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/24—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 from their environment, e.g. from corrosion
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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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)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses an annular heat-dissipation waterproof lithium battery pack assembly which comprises a connector, a battery pack, an isolation frame, a shell and a wind ball, wherein the battery pack is arranged on the connector; the shell comprises an inner cylinder and an outer cylinder, the bottoms of the inner cylinder and the outer cylinder are fixedly connected through an annular connecting plate, a wind ball is arranged in the center of the bottom of the annular connecting plate, and the interior of the wind ball is communicated with the interior of the inner cylinder; the outer side of the outer cylinder is fixedly connected with a heat dissipation cylinder through a heat dissipation connecting sheet; the battery pack and the isolation frame are provided with a plurality of groups, and the battery packs are connected in series; and the battery pack and the isolation frame are installed in the installation area between the inner barrel and the outer barrel in a staggered mode. The battery pack is arranged in an annular structure, and the casing and the wind ball are matched, so that when the battery pack is used, the wind ball is subjected to external wind force and can perform rotary air draft to form heat dissipation wind, the heat dissipation effect of the casing is accelerated under the unpowered condition, and the temperature of the battery pack is reduced; and the battery pack is sealed in the shell, so that complete water resistance can be realized under the condition of not reducing heat dissipation.

Description

Annular heat-dissipation waterproof lithium battery pack assembly and preparation process
Technical Field
The invention relates to the technical field of lithium batteries, in particular to an annular heat-dissipation waterproof lithium battery pack assembly; in particular to a preparation process of the annular heat-dissipation waterproof lithium battery pack assembly.
Background
A lithium battery is a battery using a nonaqueous electrolyte solution and lithium metal or a lithium alloy as a negative electrode material, and therefore such a battery is also called a lithium metal battery. Unlike other batteries, lithium batteries have the characteristics of high charge density, long service life, high unit cost and the like.
A plurality of lithium battery monomers are combined together, so that higher voltage can be formed, and the lithium battery can be suitable for various environments; such as lithium battery cars, etc.; however, many vehicles traveling outdoors require a long time to operate, and batteries generate a large amount of heat; and often can meet weather, just need lithium battery pack to have good heat dissipation and waterproof performance. Therefore, an annular heat-dissipation waterproof lithium battery pack assembly is provided.
Disclosure of Invention
The invention aims to provide an annular heat-dissipation waterproof lithium battery pack assembly and a preparation process thereof, and aims to solve the problems of poor heat dissipation performance and poor waterproof performance of the conventional lithium battery pack assembly in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an annular heat-dissipation waterproof lithium battery pack assembly comprises a connector, a battery pack, an isolation frame, a shell and a wind ball;
the shell comprises an inner cylinder and an outer cylinder, the bottoms of the inner cylinder and the outer cylinder are fixedly connected through an annular connecting plate, an installation area is formed between the inner cylinder and the outer cylinder, the wind ball is installed in the center of the bottom of the annular connecting plate, and the interior of the wind ball is communicated with the interior of the inner cylinder; the outer side of the outer cylinder is fixedly connected with a heat dissipation cylinder through a heat dissipation connecting sheet;
the battery pack and the isolation frame are both arranged into annular structures; the battery pack and the isolation frame are provided with a plurality of groups, and the battery packs are connected in series; the battery pack and the isolation frames are installed in the installation area between the inner barrel and the outer barrel in a staggered mode, and the battery pack and the isolation frames are fixedly bonded in a one-to-one correspondence mode;
the connector comprises an end plate, the end plate is fixedly connected to the upper end of the outer cylinder through a hexagon bolt, the upper part of the end plate is fixedly sleeved with a cover body, and the lower part of the cover body is hermetically sleeved on the upper end of the heat dissipation cylinder; an air outlet pipe is embedded in the center of the bottom of the end plate, an air inlet communicated with the air outlet pipe is formed in the side face of the end plate, and the air outlet pipe is inserted into the upper end of the inner cylinder; the utility model discloses a lead frame, including end plate, annular flange, insulating cylinder, fixed cover and two main terminals, the upper portion fixedly connected with annular flange of end plate, the insulating cylinder of middle part fixedly connected with of annular flange, the fixed cover has connected electrically conductive thread bush on the insulating cylinder, and the electrically conductive thread post of insulating cylindrical one end fixedly connected with, the bottom fixed mounting of end plate has two main terminals, and two main terminals are connected with electrically conductive thread post and electrically conductive thread bush through running through end plate, annular flange and insulating cylindrical wire respectively.
Preferably, the power supply further comprises a mounting seat, the mounting seat is fixedly connected to the electric equipment, and a positive connection threaded hole and a negative connection threaded hole which are respectively matched with the conductive threaded column and the conductive threaded sleeve are formed in the mounting seat.
Preferably, the mounting seat comprises a sealing shell, a charging port is formed in the sealing shell, and the charging port is respectively connected with the positive electrode connecting threaded port and the negative electrode connecting threaded port through a charging connecting wire; and the positive electrode connecting threaded port and the negative electrode connecting threaded port are also respectively connected with external lines for supplying power to equipment.
Preferably, a gear ring is arranged on the outer side of the annular convex plate, a lock is installed on one side of the sealing shell, a lock tongue of the lock is vertically clamped in the gear ring, and a key hole of the lock is formed in one side of the sealing shell.
Preferably, the battery pack comprises an insulating bottom plate and an insulating cover plate, the top surface of the insulating bottom plate is connected with a lower hollow cylinder and a connecting column, the bottom surface of the insulating cover plate is connected with an upper hollow cylinder, and the insulating cover plate is fixedly mounted at the upper end of the connecting column through a countersunk head bolt; the upper hollow cylinder body and the lower hollow cylinder body are arranged in an aligned mode, a lithium battery monomer is arranged between the upper hollow cylinder body and the lower hollow cylinder body, and series-connection conducting strips are arranged inside one end of each of the upper hollow cylinder body and the lower hollow cylinder body; and an upper wiring terminal is installed at the top of the insulating cover plate, and a lower wiring terminal is installed at the bottom of the insulating bottom plate.
Preferably, the upper binding post and the lower binding post between the upper and lower two adjacent battery packs are connected through a short connecting wire, the lower binding post of the battery pack positioned at the lowest position is connected with a long connecting wire, and one end of the long connecting wire is connected with one main binding post of the connector; the upper binding post of the battery pack positioned at the top is connected with the other main binding post of the connector through a short connecting wire; and conductive gaskets are arranged at two ends of the short connecting wire and the long connecting wire.
Preferably, the isolation frame comprises an outer ring body and an inner ring body, the outer ring body and the inner ring body are fixedly connected through a connecting rod, a limiting opening is formed in the inner wall of the inner ring body, a limiting sliding strip is arranged on the outer wall of the inner cylinder, the inner ring body is sleeved on the inner cylinder, and the limiting opening is clamped on the limiting sliding strip in a sliding mode.
Preferably, the inner wall of the inner cylinder is fixedly connected with a radiating fin, the bottom of the sealing shell is fixedly bonded with an elastic rubber gasket, and the bottom of the end plate is fixedly bonded with a sealing rubber gasket; the end plate is provided with a through hole, and the insulating cover plate is provided with a counter bore.
The invention also provides a preparation process of the annular heat-dissipation waterproof lithium battery pack assembly, which comprises the following steps:
s1, respectively and independently producing a connector, a battery pack, an isolation frame, a shell and a wind ball;
s2, producing the connector, wherein the air outlet pipe, the end plate, the annular convex plate and the insulating cylinder are arranged into an integrated plastic structure and are formed by injection molding; then the side surface of the end plate is provided with an air inlet and communicated with an air outlet pipe; the surface of the end plate is provided with a through hole for a hexagon bolt to pass through, the insulating cylinder is of a hollow structure, the side wall of the insulating cylinder is embedded with a conductive block in a penetrating manner, the bottom of the end plate is provided with a mounting hole communicated with the inside of the insulating cylinder, a main binding post is mounted in the mounting hole, and a lead led out from the upper end of the main binding post passes through the mounting hole and is respectively welded with the conductive block and the conductive threaded post; then the conductive thread sleeve is pressed and sleeved on the insulating cylinder, and the outer end of the conductive block is tightly attached to the inner wall of the conductive thread sleeve; then pressing the conductive threaded column into the insulating cylinder; bonding a sealing rubber gasket to the bottom of the end plate; the thread pitch of the conductive threaded column is equal to that of the conductive threaded sleeve; sleeving the cover body on the outer side of the end plate, and welding at the joint; finally, grinding a chamfer at the inner port at the lower end of the cover body;
s3, producing a battery pack, wherein the insulating bottom plate, the lower hollow barrel and the connecting column are arranged into an integral plastic structure and are molded through compression molding; when in compression molding, the series connection conducting strips and the lower wiring column are embedded into the insulating bottom plate, and the upper end face of the connecting column is provided with a threaded hole; the insulating cover plate and the upper hollow cylinder are arranged into an integral plastic structure and are molded by compression; wherein, during compression molding, the series connection conducting strip and the upper wiring terminal are embedded into the insulating cover plate; then, counterbores are correspondingly formed in the insulating cover plate; finally, the lithium battery monomer is arranged between the lower hollow cylinder and the upper hollow cylinder, and the insulating bottom plate and the insulating cover plate are assembled together through the countersunk head bolts;
s4, producing an isolation frame, wherein the isolation frame is of an aluminum alloy structure, the whole isolation frame is integrally formed by compression molding, and then insulating paint is sprayed on the surface of the isolation frame;
s5, producing a shell, wherein the outer cylinder and the heat dissipation connecting sheet are of an integrated copper structure, the inner cylinder is also of a copper structure, the inner cylinder and the outer cylinder are welded together through an annular connecting plate, then, the upper end of the outer cylinder is provided with a threaded hole convenient for installing a hexagon bolt, and the bottom of the annular connecting plate is provided with a threaded hole convenient for installing a wind ball; the heat dissipation cylinder is of a thin copper sheet structure, and during manufacturing, the copper sheet is wound on the outer side of the heat dissipation connecting sheet and is connected in a brazing mode, so that the heat dissipation cylinder is formed;
s6, assembling: stacking the isolation frame and the battery pack, and connecting the battery pack in series through a short connecting wire; the isolation frames and the battery packs are correspondingly bonded together one by one, and then the isolation frames and the battery packs are sequentially arranged in an installation area between the inner barrel and the outer barrel; then connecting one end of the short connecting wire and one end of the long connecting wire at the top with the main binding post; then covering the connector, locking and fixing the connector through a hexagonal bolt, and sleeving the cover body on the outer side of the heat dissipation cylinder in a pressing manner; and then installing the wind ball on the annular connecting plate through the bolt, and finishing the assembly.
Preferably, in the step S2, when the connector is produced, it is necessary to synchronously produce a mounting seat fixedly connected to the equipment, wherein the thread pitches of the positive connection thread opening and the negative connection thread opening of the mounting seat are equal, and in the process, it is necessary to debug the mounting seat so that the mounting seat and the connector can be matched in a threaded connection manner.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the annular heat-dissipation waterproof lithium battery pack assembly, the battery pack is arranged in an annular structure, and the shell is matched with the wind ball, so that when the assembly is used, the wind ball is subjected to external wind force, can rotate and draw air to form heat-dissipation wind, and the heat-dissipation effect of the shell is accelerated under the unpowered condition, so that the temperature of the battery pack is reduced; the battery pack is sealed in the shell, so that complete water resistance can be realized under the condition of not reducing heat dissipation;
2. according to the annular heat-dissipation waterproof lithium battery pack assembly, the mounting seat and the shell can be connected through the connector, the shell can be sealed, the joint between the shell and the mounting seat can be sealed, and the waterproof effect is good;
3. according to the annular heat-dissipation waterproof lithium battery pack assembly, the battery pack and the isolation frame are connected in the shell and are not directly contacted with the shell, so that electric leakage is prevented, and the shell can be of a metal structure, so that the heat dissipation effect is improved;
4. according to the annular heat-dissipation waterproof lithium battery pack assembly, the connector is arranged behind the mounting seat, and can be locked through the lock, so that an anti-theft effect is achieved;
5. the preparation process of the annular heat-dissipation waterproof lithium battery pack assembly provided by the invention has the advantages that each component is produced independently and finally assembled, the process is simple, and the production is convenient.
Drawings
Fig. 1 is a schematic diagram of a disassembled structure of a ring-shaped heat-dissipation waterproof lithium battery pack assembly according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of a mounting base according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a connector according to embodiment 1 of the present invention;
fig. 4 is a schematic top sectional view of an end plate according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of the internal structure of the case according to embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a plurality of groups of battery packs connected in series according to embodiment 1 of the present invention;
fig. 7 is a schematic structural view of a single battery pack according to embodiment 1 of the present invention;
fig. 8 is a schematic top sectional view of an insulating base plate according to embodiment 1 of the present invention;
fig. 9 is a schematic top sectional view of an insulating cover plate according to embodiment 1 of the present invention;
FIG. 10 is a schematic structural view of an isolation frame according to embodiment 1 of the present invention;
FIG. 11 is a schematic view of a partial cross-sectional structure of an inner cylinder in example 1 of the present invention.
In the figure: 1. a mounting seat; 2. a connector; 3. a battery pack; 4. an isolation frame; 5. a housing; 6. a wind ball; 7. a short connecting wire; 8. a long connecting line; 801. a conductive gasket;
101. sealing the shell; 102. a charging connection line; 103. a charging port; 104. the positive electrode is connected with a threaded hole; 105. external connection; 106. the negative electrode is connected with a threaded port; 107. an elastic rubber gasket; 108. locking; 109. a latch bolt; 110. a key hole;
201. a cover body; 202. a hexagon bolt; 203. a ring gear; 204. a conductive threaded post; 205. a conductive threaded sleeve; 206. an air inlet; 207. a main wiring terminal; 208. an air outlet pipe; 209. a sealing rubber gasket; 210. an end plate; 2101. a through hole; 211. an annular convex plate; 212. an insulating cylinder;
301. an insulating base plate; 302. an insulating cover plate; 303. a lower hollow cylinder body; 304. connecting columns; 305. a countersunk bolt; 306. an upper binding post; 307. connecting a wiring column downwards; 308. connecting the conducting strips in series; 309. the barrel is hollowed out; 310. a countersunk hole;
401. an outer ring body; 402. an inner ring body; 403. a connecting rod; 404. a limiting port;
501. a heat dissipating fin; 502. an inner barrel; 503. an outer cylinder; 504. a heat-dissipating cylinder; 505. a heat dissipation connecting sheet; 506. an annular connecting plate; 507. and a limiting slide bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-11, the present invention provides a technical solution:
an annular heat-dissipation waterproof lithium battery pack assembly comprises a connector 2, a battery pack 3, an isolation frame 4, a shell 5 and a wind ball 6;
the shell 5 comprises an inner cylinder 502 and an outer cylinder 503, the bottoms of the inner cylinder 502 and the outer cylinder 503 are fixedly connected through an annular connecting plate 506, an installation area is formed between the inner cylinder 502 and the outer cylinder 503, the wind ball 6 is installed in the center of the bottom of the annular connecting plate 506, and the interior of the wind ball 6 is communicated with the interior of the inner cylinder 502; the outer side of the outer cylinder 503 is fixedly connected with a heat radiation cylinder 504 through a heat radiation connecting sheet 505;
the battery pack 3 and the isolation frame 4 are both arranged in an annular structure; the battery packs 3 and the isolation frame 4 are respectively provided with a plurality of groups, and the battery packs 3 are connected in series; the battery packs 3 and the isolation frames 4 are installed in the installation area between the inner barrel 502 and the outer barrel 503 in a staggered mode, and the battery packs 3 and the isolation frames 4 are fixedly bonded in a one-to-one correspondence mode;
the connector 2 comprises an end plate 210, the end plate 210 is fixedly connected to the upper end of the outer cylinder 503 through a hexagon bolt 202, the upper part of the end plate 210 is fixedly sleeved with a cover 201, and the lower part of the cover 201 is hermetically sleeved on the upper end of the heat dissipation cylinder 504; an air outlet pipe 208 is embedded in the center of the bottom of the end plate 210, an air inlet 206 communicated with the air outlet pipe 208 is formed in the side surface of the end plate 210, and the air outlet pipe 208 is inserted into the upper end of the inner cylinder 502; the upper portion fixedly connected with annular flange 211 of end plate 210, the insulating cylinder 212 of middle part fixedly connected with of annular flange 211, insulating cylinder 212 is gone up the fixed cover and is connect electrically conductive thread bush 205 that has connect, and the electrically conductive thread post 204 of the one end fixedly connected with of insulating cylinder 212, the bottom fixed mounting of end plate 210 has two main terminal 207, two main terminal 207 are connected with electrically conductive thread post 204 and electrically conductive thread bush 205 through the wire that runs through end plate 210, annular flange 211 and insulating cylinder 212 respectively.
As shown in fig. 1 and fig. 2, the power supply device further includes a mounting base 1, the mounting base 1 is fixedly connected to the electric equipment, and the mounting base 1 is provided with a positive connection screw hole 104 and a negative connection screw hole 106 respectively matched with the conductive screw column 204 and the conductive screw sleeve 205.
In specific implementation, the mounting base 1 includes a sealing shell 101, a charging port 103 is formed on the sealing shell 101, and the charging port 103 is respectively connected with a positive connection threaded port 104 and a negative connection threaded port 106 through a charging connection line 102; the positive connection screw port 104 and the negative connection screw port 106 are also connected to external connections 105 for supplying power to the devices, respectively. Charging can be performed through charging port 103, and in actual practice, a sealing plug is also plugged into charging port 103.
As shown in fig. 2 and 3, the ring gear 203 is provided at the outer side of the annular protrusion plate 211, the lock 108 is installed at one side of the sealing case 101, the latch tongue 109 of the lock 108 is vertically caught in the ring gear 203, and the key hole 110 of the lock 108 is provided at one side of the sealing case 101. The gear ring 203 can be locked by opening and closing the lock 108, the gear ring 203 is prevented from rotating, the connector 2 is prevented from being detached, and an anti-theft effect is achieved.
As shown in fig. 7, the battery pack 3 includes an insulating base plate 301 and an insulating cover plate 302, the top surface of the insulating base plate 301 is connected with a lower hollow cylinder 303 and a connecting column 304, the bottom surface of the insulating cover plate 302 is connected with an upper hollow cylinder 309, and the insulating cover plate 302 is fixedly mounted at the upper end of the connecting column 304 through a countersunk head bolt 305; the upper hollow cylinder 309 and the lower hollow cylinder 303 are arranged in an aligned manner, a lithium battery monomer is arranged between the upper hollow cylinder 309 and the lower hollow cylinder 303, and series-connection conducting strips 308 are respectively arranged inside one ends of the upper hollow cylinder 309 and the lower hollow cylinder 303; and the top of the insulating cover plate 302 is provided with an upper binding post 306, and the bottom of the insulating base plate 301 is provided with a lower binding post 307.
As shown in fig. 6 and 7, in practice, the upper terminal 306 and the lower terminal 307 between two adjacent upper and lower battery packs 3 are connected by a short connecting wire 7, and the lower terminal 307 of the battery pack 3 located at the lowest position is connected with a long connecting wire 8, and one end of the long connecting wire 8 is connected with one of the main terminals 207 of the connector 2; the upper terminal 306 of the uppermost battery pack 3 is connected to the other main terminal 207 of the connector 2 via the short connection wire 7; both ends of the short connection line 7 and the long connection line 8 are provided with conductive washers 801.
Specifically, as shown in fig. 10, the isolation frame 4 includes an outer ring 401 and an inner ring 402, the outer ring 401 and the inner ring 402 are fixedly connected through a connecting rod 403, a limiting opening 404 is formed in an inner wall of the inner ring 402, a limiting sliding strip 507 is arranged on an outer wall of the inner cylinder 502, the inner ring 402 is sleeved on the inner cylinder 502, and the limiting opening 404 is slidably clamped on the limiting sliding strip 507.
As shown in fig. 5, the inner wall of the inner cylinder 502 is fixedly connected with a heat dissipation fin 501, the bottom of the sealing shell 101 is fixedly bonded with an elastic rubber gasket 107, and the bottom of the end plate 210 is fixedly bonded with a sealing rubber gasket 209; the end plate 210 has a through hole 2101, and the insulating cover plate 302 has a counter bore 310.
When the annular heat-dissipation waterproof lithium battery pack assembly is prepared, the method comprises the following steps:
s1, separately producing the connector 2, the battery pack 3, the isolation frame 4, the shell 5 and the wind ball 6;
s2, producing the connector 2, wherein the air outlet pipe 208, the end plate 210, the annular convex plate 211 and the insulating cylinder 212 are arranged to be of an integrated plastic structure and are formed through injection molding; then, the side surface of the end plate 210 is provided with an air inlet 206 and communicated with an air outlet pipe 208; a through hole 2101 for the hexagonal bolt 202 to pass through is formed in the surface of the end plate 210, the insulating cylinder 212 is of a hollow structure, a conductive block is embedded in the side wall of the insulating cylinder 212 in a penetrating mode, a mounting hole communicated with the inside of the insulating cylinder 212 is formed in the bottom of the end plate 210, a main wiring terminal 207 is mounted in the mounting hole, and a lead led out from the upper end of the main wiring terminal 207 passes through the mounting hole and is welded with the conductive block and the conductive threaded column 204 together; then the conductive threaded sleeve 205 is pressed and sleeved on the insulating cylinder 212, and the outer end of the conductive block is tightly attached to the inner wall of the conductive threaded sleeve 205; then the conductive threaded post 204 is pressed into the interior of the insulating cylinder 212; bonding a sealing rubber gasket 209 to the bottom of the end plate 210; the thread pitch of the conductive threaded column 204 is equal to that of the conductive threaded sleeve 205; sleeving the cover body 201 on the outer side of the end plate 210, and welding at the joint; finally, a chamfer is ground at the inner opening at the lower end of the cover body 201;
s3, producing the battery pack 3, arranging the insulating bottom plate 301, the lower hollow barrel 303 and the connecting column 304 into an integral plastic structure, and performing compression molding; during compression molding, the series conducting plate 308 and the lower connecting post 307 are embedded into the insulating bottom plate 301, and the upper end face of the connecting post 304 is provided with a threaded hole; the insulating cover plate 302 and the upper hollow cylinder 309 are arranged into an integral plastic structure and are molded by compression; wherein the series conductive sheet 308 and the upper post 306 are embedded on the insulating cover plate 302 at the time of compression molding; then, counterbores are correspondingly formed in the insulating cover plate 302; finally, the single lithium battery is arranged between the lower hollow cylinder 303 and the upper hollow cylinder 309, and the insulating bottom plate 301 and the insulating cover plate 302 are assembled together through the countersunk head bolts 305;
s4, producing an isolation frame 4, wherein the isolation frame 4 is of an aluminum alloy structure, the whole isolation frame is integrally formed by compression molding, and then insulating paint is sprayed on the surface of the isolation frame;
s5, production of the shell 5, wherein the outer cylinder 503 and the heat dissipation connecting sheet 505 are of an integral copper structure, the inner cylinder 502 is also of a copper structure, the inner cylinder 502 and the outer cylinder 503 are welded together through an annular connecting plate 506, then, the upper end of the outer cylinder 503 is provided with a threaded hole convenient for installation of the hexagon bolt 202, and the bottom of the annular connecting plate 506 is provided with a threaded hole convenient for installation of the wind ball 6; the heat dissipation cylinder 504 is of a thin copper sheet structure, and during manufacturing, a copper sheet is wound on the outer side of the heat dissipation connecting sheet 505 and is connected by soldering, so that the heat dissipation cylinder 504 is molded;
s6, assembling: the isolation frame 4 and the battery pack 3 are stacked, and the battery pack 3 is connected in series through a short connecting wire 7; the isolation frames 4 and the battery packs 3 are correspondingly bonded together one by one, and then the isolation frames 4 and the battery packs 3 are sequentially arranged in an installation area between the inner barrel 502 and the outer barrel 503; then, one end of the short connecting wire 7 and one end of the long connecting wire 8 at the top are connected with the main binding post 207; then, covering the connector 2, and locking and fixing the connector by the hexagon bolt 202, wherein the cover body 201 is pressed and sleeved on the outer side of the heat dissipation cylinder 504; the wind ball 6 is then bolted to the annular web 506, completing the assembly.
In the step S2, when the connector 2 is produced, the mounting base 1 fixedly connected to the equipment needs to be synchronously produced, wherein the screw pitches of the positive connection screw thread 104 and the negative connection screw thread 106 of the mounting base 1 are equal, and the mounting base 1 and the connector 2 can be matched in a threaded connection manner due to debugging required in the process.
Example 2
Unlike embodiment 1, in order to adapt to various installation positions and situations, the wind ball 6 is not directly installed at the bottom of the annular connecting plate 506 during installation, but is communicated with the inner ring of the annular connecting plate 506 through a hose; therefore, the optimal installation position of the wind ball 6 can be flexibly adjusted, and the use is more convenient.
In implementation, the waterproof effect of the annular heat-dissipation waterproof lithium battery pack assembly is detected through experiments, and the specific characteristics are shown in the following table:
Figure BDA0003359253820000101
in the implementation, the heat dissipation effect of the annular heat dissipation waterproof lithium battery pack assembly is detected through experiments, the annular heat dissipation waterproof lithium battery pack assembly is firstly applied to a battery car, a thermometer penetrates through the shell 5, and the table in the test is as follows:
outdoor temperature Riding speed Riding time Temperature of battery Results
5℃ 30 yards 20 minutes 8℃ Good heat dissipation
15℃ 40 yards 20 minutes 18℃ Good heat dissipation
25℃ 50 yard 20 minutes 30℃ Good heat dissipation
30℃ 60 yard 30 minutes 37℃ Good heat dissipation
35℃ 60 yard 30 minutes 42℃ Good heat dissipation
In summary, according to the annular heat-dissipation waterproof lithium battery pack assembly, the battery pack 3 is arranged in an annular structure, and the casing 5 and the wind ball 6 are matched, so that when the assembly is used, the wind ball 6 is subjected to external wind force and can rotate to draw air to form heat dissipation air, the heat dissipation effect of the casing 5 is accelerated under the unpowered condition, and the temperature of the battery pack 3 is reduced; the battery pack 3 is sealed in the shell 5, so that complete water resistance can be realized under the condition of not reducing heat dissipation; the mounting seat 1 and the shell 5 can be connected through the connector 2, the shell 5 can be sealed, the connection part of the shell 5 and the mounting seat 1 can be sealed, and the waterproof effect is good; the battery pack 3 and the isolation frame 4 are connected in the shell 5 and are not directly contacted with the shell 5, so that electric leakage is prevented, and the shell 5 can be of a metal structure, so that the heat dissipation effect is improved; after the connector 2 is installed on the installation seat 1, the connector 2 can be locked through the lock 108, and an anti-theft effect is achieved; the preparation process of the annular heat-dissipation waterproof lithium battery pack assembly provided by the invention has the advantages that each component is produced independently and finally assembled, the process is simple, and the production is convenient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An annular heat-dissipation waterproof lithium battery pack assembly is characterized by comprising a connector, a battery pack, an isolation frame, a shell and a wind ball;
the shell comprises an inner cylinder and an outer cylinder, the bottoms of the inner cylinder and the outer cylinder are fixedly connected through an annular connecting plate, an installation area is formed between the inner cylinder and the outer cylinder, the wind ball is installed in the center of the bottom of the annular connecting plate, and the interior of the wind ball is communicated with the interior of the inner cylinder; the outer side of the outer cylinder is fixedly connected with a heat dissipation cylinder through a heat dissipation connecting sheet;
the battery pack and the isolation frame are both arranged into annular structures; the battery pack and the isolation frame are provided with a plurality of groups, and the battery packs are connected in series; the battery pack and the isolation frames are installed in the installation area between the inner barrel and the outer barrel in a staggered mode, and the battery pack and the isolation frames are fixedly bonded in a one-to-one correspondence mode;
the connector comprises an end plate, the end plate is fixedly connected to the upper end of the outer cylinder through a hexagon bolt, the upper part of the end plate is fixedly sleeved with a cover body, and the lower part of the cover body is hermetically sleeved on the upper end of the heat dissipation cylinder; an air outlet pipe is embedded in the center of the bottom of the end plate, an air inlet communicated with the air outlet pipe is formed in the side face of the end plate, and the air outlet pipe is inserted into the upper end of the inner cylinder; the utility model discloses a lead frame, including end plate, annular flange, insulating cylinder, fixed cover and two main terminals, the upper portion fixedly connected with annular flange of end plate, the insulating cylinder of middle part fixedly connected with of annular flange, the fixed cover has connected electrically conductive thread bush on the insulating cylinder, and the electrically conductive thread post of insulating cylindrical one end fixedly connected with, the bottom fixed mounting of end plate has two main terminals, and two main terminals are connected with electrically conductive thread post and electrically conductive thread bush through running through end plate, annular flange and insulating cylindrical wire respectively.
2. The annular heat-dissipation waterproof lithium battery pack assembly of claim 1, wherein: the electric power tool is characterized by further comprising a mounting seat, wherein the mounting seat is fixedly connected to electric equipment, and a positive connecting thread opening and a negative connecting thread opening which are matched with the conductive thread column and the conductive thread sleeve are formed in the mounting seat.
3. The annular heat-dissipation waterproof lithium battery pack assembly of claim 2, wherein: the mounting seat comprises a sealing shell, a charging port is formed in the sealing shell, and the charging port is respectively connected with a positive electrode connecting threaded port and a negative electrode connecting threaded port through a charging connecting wire; and the positive electrode connecting threaded port and the negative electrode connecting threaded port are also respectively connected with external lines for supplying power to equipment.
4. The annular heat-dissipation waterproof lithium battery pack assembly as claimed in claim 3, wherein: the outside of annular flange is provided with the ring gear, the lock is installed to one side of sealed shell, the spring bolt of lock is perpendicular to be blocked in the ring gear, and the key hole setting of this lock is in one side of sealed shell.
5. The annular heat-dissipation waterproof lithium battery pack assembly as claimed in claim 4, wherein: the battery pack comprises an insulating bottom plate and an insulating cover plate, the top surface of the insulating bottom plate is connected with a lower hollow cylinder and a connecting column, the bottom surface of the insulating cover plate is connected with an upper hollow cylinder, and the insulating cover plate is fixedly arranged at the upper end of the connecting column through a countersunk head bolt; the upper hollow cylinder body and the lower hollow cylinder body are arranged in an aligned mode, a lithium battery monomer is arranged between the upper hollow cylinder body and the lower hollow cylinder body, and series-connection conducting strips are arranged inside one end of each of the upper hollow cylinder body and the lower hollow cylinder body; and an upper wiring terminal is installed at the top of the insulating cover plate, and a lower wiring terminal is installed at the bottom of the insulating bottom plate.
6. The annular heat-dissipation waterproof lithium battery pack assembly as claimed in claim 5, wherein: the upper wiring terminal and the lower wiring terminal between the upper and lower two adjacent battery packs are connected through a short connecting wire, the lower wiring terminal of the battery pack positioned at the lowest position is connected with a long connecting wire, and one end of the long connecting wire is connected with one main wiring terminal of the connector; the upper binding post of the battery pack positioned at the top is connected with the other main binding post of the connector through a short connecting wire; and conductive gaskets are arranged at two ends of the short connecting wire and the long connecting wire.
7. The annular heat-dissipating waterproof lithium battery pack assembly of claim 6, wherein: the isolation frame comprises an outer ring body and an inner ring body, the outer ring body and the inner ring body are fixedly connected through a connecting rod, a limiting opening is formed in the inner wall of the inner ring body, a limiting sliding strip is arranged on the outer wall of the inner barrel, the inner ring body is sleeved on the inner barrel, and the limiting opening is clamped on the limiting sliding strip in a sliding mode.
8. The annular heat-dissipating waterproof lithium battery pack assembly according to claim 7, wherein: the inner wall of the inner cylinder is fixedly connected with a radiating fin, the bottom of the sealing shell is fixedly bonded with an elastic rubber gasket, and the bottom of the end plate is fixedly bonded with a sealing rubber gasket; the end plate is provided with a through hole, and the insulating cover plate is provided with a counter bore.
9. A preparation process of an annular heat-dissipation waterproof lithium battery pack assembly, which is used for producing the annular heat-dissipation waterproof lithium battery pack assembly as claimed in claim 1, and is characterized by comprising the following steps:
s1, respectively and independently producing a connector, a battery pack, an isolation frame, a shell and a wind ball;
s2, producing the connector, wherein the air outlet pipe, the end plate, the annular convex plate and the insulating cylinder are arranged into an integrated plastic structure and are formed by injection molding; then the side surface of the end plate is provided with an air inlet and communicated with an air outlet pipe; the surface of the end plate is provided with a through hole for a hexagon bolt to pass through, the insulating cylinder is of a hollow structure, the side wall of the insulating cylinder is embedded with a conductive block in a penetrating manner, the bottom of the end plate is provided with a mounting hole communicated with the inside of the insulating cylinder, a main binding post is mounted in the mounting hole, and a lead led out from the upper end of the main binding post passes through the mounting hole and is respectively welded with the conductive block and the conductive threaded post; then the conductive thread sleeve is pressed and sleeved on the insulating cylinder, and the outer end of the conductive block is tightly attached to the inner wall of the conductive thread sleeve; then pressing the conductive threaded column into the insulating cylinder; bonding a sealing rubber gasket to the bottom of the end plate; the thread pitch of the conductive threaded column is equal to that of the conductive threaded sleeve; sleeving the cover body on the outer side of the end plate, and welding at the joint; finally, grinding a chamfer at the inner port at the lower end of the cover body;
s3, producing a battery pack, wherein the insulating bottom plate, the lower hollow barrel and the connecting column are arranged into an integral plastic structure and are molded through compression molding; when in compression molding, the series connection conducting strips and the lower wiring column are embedded into the insulating bottom plate, and the upper end face of the connecting column is provided with a threaded hole; the insulating cover plate and the upper hollow cylinder are arranged into an integral plastic structure and are molded by compression; wherein, during compression molding, the series connection conducting strip and the upper wiring terminal are embedded into the insulating cover plate; then, counterbores are correspondingly formed in the insulating cover plate; finally, the lithium battery monomer is arranged between the lower hollow cylinder and the upper hollow cylinder, and the insulating bottom plate and the insulating cover plate are assembled together through the countersunk head bolts;
s4, producing an isolation frame, wherein the isolation frame is of an aluminum alloy structure, the whole isolation frame is integrally formed by compression molding, and then insulating paint is sprayed on the surface of the isolation frame;
s5, producing a shell, wherein the outer cylinder and the heat dissipation connecting sheet are of an integrated copper structure, the inner cylinder is also of a copper structure, the inner cylinder and the outer cylinder are welded together through an annular connecting plate, then, the upper end of the outer cylinder is provided with a threaded hole convenient for installing a hexagon bolt, and the bottom of the annular connecting plate is provided with a threaded hole convenient for installing a wind ball; the heat dissipation cylinder is of a thin copper sheet structure, and during manufacturing, the copper sheet is wound on the outer side of the heat dissipation connecting sheet and is connected in a brazing mode, so that the heat dissipation cylinder is formed;
s6, assembling: stacking the isolation frame and the battery pack, and connecting the battery pack in series through a short connecting wire; the isolation frames and the battery packs are correspondingly bonded together one by one, and then the isolation frames and the battery packs are sequentially arranged in an installation area between the inner barrel and the outer barrel; then connecting one end of the short connecting wire and one end of the long connecting wire at the top with the main binding post; then covering the connector, locking and fixing the connector through a hexagonal bolt, and sleeving the cover body on the outer side of the heat dissipation cylinder in a pressing manner; and then installing the wind ball on the annular connecting plate through the bolt, and finishing the assembly.
10. The preparation process of the annular heat-dissipation waterproof lithium battery pack assembly as claimed in claim 1, wherein the preparation process comprises the following steps: in the step S2, during production of the connector, a mounting seat fixedly connected to the apparatus needs to be synchronously produced, wherein the thread pitches of the positive connection thread opening and the negative connection thread opening of the mounting seat are equal, and the mounting seat needs to be debugged in the process, so that the mounting seat can be in threaded connection with the connector.
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