CN114256511B - 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
CN114256511B
CN114256511B CN202111360948.4A CN202111360948A CN114256511B CN 114256511 B CN114256511 B CN 114256511B CN 202111360948 A CN202111360948 A CN 202111360948A CN 114256511 B CN114256511 B CN 114256511B
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China
Prior art keywords
cylinder
battery pack
insulating
plate
annular
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CN202111360948.4A
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Chinese (zh)
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CN114256511A (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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Priority to CN202111360948.4A priority Critical patent/CN114256511B/en
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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, a separation frame, a shell and a wind ball, wherein the connector is connected with the battery pack; 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 at the center of the bottom of the annular connecting plate, and the inside of the wind ball is communicated with the inside 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 packs and the isolation frame are provided with a plurality of groups, and the battery packs of the plurality of groups are connected in series; and the battery packs and the isolation frame are alternately arranged in the installation area between the inner cylinder and the outer cylinder. The battery pack is arranged into an annular structure, and the shell and the air ball are matched, so that when the battery pack is used, the air ball is subjected to external wind power, and can rotate to exhaust air to form heat dissipation air, and the heat dissipation effect of the shell is accelerated under the unpowered condition, so that the temperature of the battery pack is reduced; and the battery pack is sealed in the shell, so that complete waterproof 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 with 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 characteristics of high charge density, long life, high unit cost, and the like.
The lithium battery cells are combined together, so that higher voltage can be formed, and the lithium battery cell can be suitable for various environments; such as lithium battery automobiles, battery cars and the like; however, many vehicles running outdoors need to run for a long time, and the battery emits a large amount of heat; and often in weather, it is desirable that the lithium battery module have good heat dissipation and waterproof properties. Therefore, we propose an annular heat-dissipation waterproof lithium battery pack assembly.
Disclosure of Invention
The invention aims to provide an annular heat-dissipation waterproof lithium battery pack assembly and a preparation process thereof, which are used for solving 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 above purpose, the present invention provides the following technical solutions:
an annular heat-dissipation waterproof lithium battery pack assembly comprises a connector, a battery pack, a separation 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, a mounting area is formed between the inner cylinder and the outer cylinder, the air ball is mounted at the center of the bottom of the annular connecting plate, and the inner part of the air ball is communicated with the inner part 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 all arranged in an annular structure; the battery packs and the isolation frame are provided with a plurality of groups, and the battery packs are connected in series; the battery packs and the isolation frames are installed in an installation area between the inner cylinder and the outer cylinder in a staggered manner, and the battery packs and the isolation frames are fixedly bonded in a one-to-one correspondence manner;
the connector comprises an end plate, the end plate is fixedly connected to the upper end of the outer cylinder through a hexagon bolt, a cover body is fixedly sleeved on the upper portion of the end plate, and the lower portion of the cover body is sealed and arranged at 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 surface of the end plate, and the air outlet pipe is inserted into the upper end of the inner cylinder; the upper portion fixedly connected with annular flange of end plate, the middle part fixedly connected with insulating cylinder of annular flange, insulating cylinder is last to have fixedly cup jointed conductive thread cover, and insulating cylinder's one end fixedly connected with conductive thread post, the bottom fixed mounting of end plate has two main terminal, and two main terminal are connected with conductive thread post and conductive thread cover through wire that runs through end plate, annular flange and insulating cylinder respectively.
Preferably, the electric device further comprises a mounting seat fixedly connected to the electric device, and the mounting seat is provided with an anode connecting threaded port and a cathode connecting threaded port which are matched with the conductive threaded column and the conductive threaded sleeve respectively.
Preferably, the mounting seat comprises a sealing shell, wherein a charging port is formed in the sealing shell and is respectively connected with the positive electrode connecting threaded port and the negative electrode connecting threaded port through a charging connecting wire; the positive electrode connecting threaded port and the negative electrode connecting threaded port are respectively connected with an external connection wire for supplying power to equipment.
Preferably, a gear ring is arranged on the outer side of the annular convex plate, a lock is arranged 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 arranged on one side of the sealing shell.
Preferably, the battery pack comprises an insulating bottom plate and an insulating cover plate, wherein 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 bolt; the upper hollow cylinder body and the lower hollow cylinder body are aligned, a lithium battery monomer is arranged between the upper hollow cylinder body and the lower hollow cylinder body, and serial conductive sheets are respectively arranged inside one ends of the upper hollow cylinder body and the lower hollow cylinder body; and an upper binding post is arranged at the top of the insulating cover plate, and a lower binding post is arranged at the bottom of the insulating bottom plate.
Preferably, the upper binding post and the lower binding post between the upper and lower adjacent battery packs are connected through a short connecting wire, a long connecting wire is connected to the lower binding post of the battery pack positioned at the lowest position, and one end of the long connecting wire is connected with one of the main binding posts of the connector; the upper binding post of the battery pack positioned at the uppermost part 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, wherein the outer ring body is fixedly connected with the inner ring body 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 slidably clamped on the limiting sliding strip.
Preferably, the inner wall of the inner cylinder is fixedly connected with radiating fins, 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 countersunk hole.
The invention also provides a preparation process based on the annular heat-dissipation waterproof lithium battery pack assembly, which comprises the following steps:
s1, respectively and independently producing a connector, a battery pack, a separation frame, a shell and a wind ball;
s2, production of a connector, wherein an air outlet pipe, an end plate, an annular convex plate and an insulating cylinder are arranged into an integrated plastic structure and are formed by injection molding; then, an air inlet is formed in the side face of the end plate and communicated with the air outlet pipe; the surface of the end plate is provided with a through hole which is convenient for a hexagon bolt to pass through, the insulating cylinder is of a hollow structure, the side wall of the insulating cylinder is penetrated and embedded with a conductive block, the bottom of the end plate is provided with a mounting hole which is communicated with the inside of the insulating cylinder, a main binding post is arranged 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 thread column; 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 thread column into the insulating cylinder; bonding a sealing rubber gasket to the bottom of the end plate; the thread pitches of the conductive thread columns and the conductive thread sleeves are equal; the cover body is sleeved outside the end plate and welded at the joint; finally, polishing a chamfer angle at the inner opening of the lower end of the cover body;
S3, producing a battery pack, wherein the insulating bottom plate, the lower hollow cylinder body and the connecting column are arranged into an integrated plastic structure, and are formed by compression molding; during compression molding, embedding the series conductive sheet and the lower binding post on an insulating bottom plate, and arranging a threaded hole on the end face of the upper end of the connecting post; the insulating cover plate and the upper hollow cylinder are arranged into an integrated plastic structure and are formed by compression molding; wherein the series conductive sheet and the upper terminal are embedded into the insulating cover plate during compression molding; then a counter sunk hole is correspondingly formed on 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 countersunk bolts;
S4, producing an isolation frame, wherein the isolation frame is of an aluminum alloy structure, integrally compression-molded, and then spraying insulating paint on the surface of the isolation frame;
s5, producing a shell, wherein the outer cylinder and the radiating connecting piece are of an integrated copper structure, the inner cylinder is of a copper structure, the inner cylinder and the outer cylinder are welded together through an annular connecting plate, then, a threaded hole which is convenient for installing a hexagonal bolt is formed in the upper end of the outer cylinder, and a threaded hole which is convenient for installing a wind ball is formed in the bottom of the annular connecting plate; the copper sheet is wound on the outer side of the radiating connecting sheet and is connected with the radiating connecting sheet in a brazing way during manufacturing, so that the radiating cylinder is formed;
s6, assembling: stacking the isolation frame and the battery pack, and connecting the battery packs in series through a short connecting wire; bonding the isolation frames and the battery packs together in a one-to-one correspondence manner, and then sequentially installing each isolation frame and the battery packs into an installation area between the inner cylinder and the outer cylinder; then connecting one end of the uppermost short connecting wire and one end of the uppermost long connecting wire with the main binding post; then the connector is covered and locked and fixed through a hexagonal bolt, and the cover body is sleeved on the outer side of the heat dissipation cylinder in a pressing mode; and then the wind ball is mounted on the annular connecting plate through bolts, so that the assembly is completed.
Preferably, in the step S2, when the connector is produced, the installation seat fixedly connected with the device needs to be synchronously produced, wherein the pitch of the positive connection threaded port and the negative connection threaded port of the installation seat is equal, and debugging is required in the process, so that the installation seat can be matched with the connector 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 of an annular structure, and the shell is matched with the air ball, so that when the annular heat-dissipation waterproof lithium battery pack assembly is used, the air ball is subjected to external wind power, and can be used for rotating and exhausting air to form heat-dissipation air, 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, and can realize complete waterproof 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, sealing of the shell and sealing of the joint of the shell and the mounting seat can be realized, 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, the shell can be of a metal structure, and 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. according to the preparation process of the annular heat-dissipation waterproof lithium battery pack assembly, each component is produced independently, and finally the assembly is carried out, so that the process is simple and the production is convenient.
Drawings
Fig. 1 is a schematic diagram of a split structure of an annular heat dissipation waterproof lithium battery pack assembly according to embodiment 1 of the present invention;
Fig. 2 is a schematic structural diagram 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 showing the internal structure of a housing according to embodiment 1 of the present invention;
fig. 6 is a schematic diagram of a structure in which a plurality of battery packs are connected in series according to embodiment 1 of the present invention;
fig. 7 is a schematic view showing the structure 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 showing a partial sectional structure of an inner cylinder according to embodiment 1 of the present invention.
In the figure: 1. a mounting base; 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. A sealed housing; 102. a charging connection line; 103. a charging port; 104. the positive electrode is connected with the threaded port; 105. an external wiring; 106. the negative electrode is connected with the threaded port; 107. an elastic rubber gasket; 108. a lock; 109. a bolt; 110. a key hole;
201. A cover body; 202. a hexagonal bolt; 203. a gear ring; 204. a conductive threaded post; 205. a conductive thread sleeve; 206. an air inlet; 207. a main binding post; 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; 304. a connecting column; 305. countersunk head bolts; 306. an upper binding post; 307. a lower terminal; 308. a series conductive sheet; 309. an upper hollowed-out cylinder; 310. a countersunk hole;
401. An outer ring body; 402. an inner ring body; 403. a connecting rod; 404. a limit opening;
501. A heat radiation fin; 502. an inner cylinder; 503. an outer cylinder; 504. a heat dissipation cylinder; 505. a heat dissipation connecting sheet; 506. an annular connecting plate; 507. and limiting the sliding bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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, a mounting area is formed between the inner cylinder 502 and the outer cylinder 503, a wind ball 6 is mounted at 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 dissipation cylinder 504 through a heat dissipation connecting sheet 505;
The battery pack 3 and the isolation frame 4 are all arranged in an annular structure; the battery packs 3 and the isolation frame 4 are provided with a plurality of groups, and the battery packs 3 of the plurality of groups are connected in series; the battery packs 3 and the isolation frames 4 are installed in an installation area between the inner cylinder 502 and the outer cylinder 503 in a staggered manner, and the battery packs 3 and the isolation frames 4 are fixedly bonded in a one-to-one correspondence manner;
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 hexagonal bolt 202, a cover 201 is fixedly sleeved on the upper part of the end plate 210, and the lower part of the cover 201 is sealed and sleeved on the upper end of the heat dissipation cylinder 504; the bottom center of the end plate 210 is embedded with an air outlet pipe 208, the side surface of the end plate 210 is provided with an air inlet 206 communicated with the air outlet pipe 208, 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 middle part fixedly connected with insulating cylinder 212 of annular flange 211, insulating cylinder 212 is last to be fixedly cup jointed conductive thread cover 205, and insulating cylinder 212's one end fixedly connected with conductive thread post 204, the bottom fixed mounting of end plate 210 has two main terminal 207, two main terminal 207 are connected with conductive thread post 204 and conductive thread cover 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 electric equipment further comprises a mounting seat 1, the mounting seat 1 is fixedly connected to the electric equipment, and the mounting seat 1 is provided with an anode connecting threaded port 104 and a cathode connecting threaded port 106 which are respectively matched with the conductive threaded column 204 and the conductive threaded sleeve 205.
In specific implementation, the mounting seat 1 comprises a sealing shell 101, a charging port 103 is formed in the sealing shell 101, and the charging port 103 is respectively connected with a positive electrode connecting threaded port 104 and a negative electrode connecting threaded port 106 through a charging connecting wire 102; the positive connection screw port 104 and the negative connection screw port 106 are also connected with external wires 105 for supplying power to the device, respectively. Charging can be performed through the charging port 103, and in actual implementation, a sealing plug is also plugged into the charging port 103.
As shown in fig. 2 and 3, the annular projection 211 is provided with a gear ring 203 on the outer side, the lock 108 is mounted on one side of the seal case 101, the lock tongue 109 of the lock 108 is vertically caught in the gear ring 203, and the key hole 110 of the lock 108 is provided on one side of the seal case 101. The gear ring 203 can be locked through the opening and closing of the lock 108, the gear ring 203 is prevented from rotating, the connector 2 is prevented from being detached, and the anti-theft function is achieved.
As shown in fig. 7, the battery pack 3 comprises an insulating bottom plate 301 and an insulating cover plate 302, wherein the top surface of the insulating bottom 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 arranged at the upper end of the connecting column 304 through a countersunk bolt 305; the upper hollow cylinder 309 and the lower hollow cylinder 303 are aligned, a lithium battery monomer is arranged between the upper hollow cylinder 309 and the lower hollow cylinder 303, and a series conductive sheet 308 is respectively arranged inside one end of the upper hollow cylinder 309 and one end of the lower hollow cylinder 303; and an upper terminal 306 is mounted on top of the insulating cover 302, and a lower terminal 307 is mounted on the bottom of the insulating base 301.
As shown in fig. 6 and 7, in practice, the upper terminal 306 and the lower terminal 307 between the upper and lower adjacent battery packs 3 are connected by a short connecting wire 7, and the lower terminal 307 of the battery pack 3 located at the lowermost 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 binding post 306 of the uppermost battery pack 3 is connected with the other main binding post 207 of the connector 2 through a short connecting 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 the inner wall of the inner ring 402, a limiting sliding strip 507 is arranged on the 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; end plate 210 has a through hole 2101 and insulating cover plate 302 has a counter bore 310.
The annular heat-dissipation waterproof lithium battery pack assembly comprises the following steps:
S1, respectively and independently producing a connector 2, a battery pack 3, a separation frame 4, a shell 5 and an air ball 6;
S2, production of the connector 2, wherein an air outlet pipe 208, an end plate 210, an annular convex plate 211 and an insulating cylinder 212 are arranged into an integrated plastic structure and are formed through injection molding; then, an air inlet 206 is formed on the side surface of the end plate 210 and is communicated with an air outlet pipe 208; a through hole 2101 which is convenient for a 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 inserted and embedded in the side wall of the insulating cylinder 212, a mounting hole which is communicated with the inside of the insulating cylinder 212 is formed in the bottom of the end plate 210, a main binding post 207 is mounted in the mounting hole, and a lead wire led out from the upper end of the main binding post 207 passes through the mounting hole and is respectively welded with the conductive block and the conductive thread column 204; then the conductive thread 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 thread sleeve 205; then the conductive thread column 204 is pressed into the insulating cylinder 212; bonding a sealing rubber gasket 209 to the bottom of the end plate 210; wherein, the pitch of the conductive thread column 204 is equal to that of the conductive thread sleeve 205; the cover 201 is sleeved outside the end plate 210 and welded at the joint; finally, chamfering is polished at the inner opening of the lower end of the cover 201;
S3, producing the battery pack 3, wherein the insulating bottom plate 301, the lower hollow cylinder 303 and the connecting column 304 are arranged into an integrated plastic structure, and are formed by compression molding; wherein during compression molding, the series conductive piece 308 and the lower binding post 307 are embedded into the insulating base plate 301, and a threaded hole is formed in the upper end face of the connecting post 304; the insulating cover plate 302 and the upper hollow cylinder 309 are arranged into an integral plastic structure and are formed by compression molding; wherein the series conductive sheet 308 and the upper terminal post 306 are embedded onto the insulating cover 302 during compression molding; then, correspondingly forming a counter sunk hole on the insulating cover plate 302; finally, a lithium battery monomer is installed 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 countersunk bolts 305;
S4, producing the isolation frame 4, wherein the isolation frame 4 is of an aluminum alloy structure, integrally compression-molding, and then spraying insulating paint on the surface of the isolation frame;
S5, producing a shell 5, wherein an outer cylinder 503 and a heat dissipation connecting sheet 505 are of an integrated copper structure, an inner cylinder 502 is 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 which is convenient for installing a hexagonal bolt 202, and the bottom of the annular connecting plate 506 is provided with a threaded hole which is convenient for installing a wind ball 6; the copper sheet structure of the heat dissipation barrel 504 is manufactured by winding the copper sheet on the outer side of the heat dissipation connecting sheet 505 and performing braze welding connection so as to form the heat dissipation barrel 504;
S6, assembling: stacking the isolation frame 4 and the battery pack 3, and connecting the battery packs 3 in series through a short connecting wire 7; bonding the isolation frames 4 and the battery packs 3 in a one-to-one correspondence manner, and then sequentially installing each isolation frame 4 and the battery pack 3 into an installation area between the inner cylinder 502 and the outer cylinder 503; then one end of the uppermost short connection wire 7 and long connection wire 8 is connected to the main terminal 207; then the connector 2 is covered and locked and fixed by the hexagonal bolt 202, and the cover 201 is pressed and sleeved on the outer side of the heat dissipation barrel 504; the wind ball 6 is then bolted to the annular connection plate 506 and the assembly is completed.
In step S2, when the connector 2 is produced, the mount 1 fixedly connected with the device needs to be produced synchronously, wherein the pitch of the positive connection screw thread port 104 and the negative connection screw thread port 106 of the mount 1 are equal, and debugging is required in the process, so that the mount 1 can be in threaded connection with the connector 2.
Example 2
Unlike embodiment 1, to accommodate various installation positions and conditions, the air ball 6 is not directly installed at the bottom of the annular connection plate 506 during installation, but is communicated with the inner ring of the annular connection plate 506 through a hose; therefore, the optimal installation position of the balloon 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 waterproof effect is specifically shown in the following table:
when the annular heat dissipation waterproof lithium battery pack assembly is implemented, 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 is installed on the shell 5 in a penetrating manner, and the table in the experiment is as follows:
Outdoor temperature Riding speed Time of riding Battery temperature Results
5℃ 30 Yards 20 Minutes 8℃ Good heat dissipation
15℃ 40 Yards 20 Minutes 18℃ Good heat dissipation
25℃ 50 Yards 20 Minutes 30℃ Good heat dissipation
30℃ 60 Yards 30 Minutes 37℃ Good heat dissipation
35℃ 60 Yards 30 Minutes 42℃ Good heat dissipation
In summary, according to the annular heat-dissipation waterproof lithium battery pack assembly, the battery pack 3 is of an annular structure, and the shell 5 and the air ball 6 are matched, so that when the battery pack assembly is used, the air ball 6 receives external wind power, can perform rotary air suction to form heat-dissipation air, and the heat-dissipation effect of the shell 5 is accelerated under the condition of no power, so that 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 sealing of the shell 5 and the sealing of the joint of the mounting seat 1 can be realized, 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, and the heat dissipation effect is improved; after the connector 2 is arranged on the mounting seat 1, the connector 2 can be locked through the lock 108, so that an anti-theft effect is realized; according to the preparation process of the annular heat-dissipation waterproof lithium battery pack assembly, each component is produced independently, and finally the assembly is carried out, so that the process is simple and the production is convenient.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The 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, a mounting area is formed between the inner cylinder and the outer cylinder, the air ball is mounted at the center of the bottom of the annular connecting plate, and the inner part of the air ball is communicated with the inner part 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 all arranged in an annular structure; the battery packs and the isolation frame are provided with a plurality of groups, and the battery packs are connected in series; the battery packs and the isolation frames are installed in an installation area between the inner cylinder and the outer cylinder in a staggered manner, and the battery packs and the isolation frames are fixedly bonded in a one-to-one correspondence manner;
The connector comprises an end plate, the end plate is fixedly connected to the upper end of the outer cylinder through a hexagon bolt, a cover body is fixedly sleeved on the upper portion of the end plate, and the lower portion of the cover body is sealed and arranged at 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 surface of the end plate, and the air outlet pipe is inserted into the upper end of the inner cylinder; the upper part of the end plate is fixedly connected with an annular convex plate, the middle part of the annular convex plate is fixedly connected with an insulating cylinder, a conductive thread sleeve is fixedly sleeved on the insulating cylinder, one end of the insulating cylinder is fixedly connected with a conductive thread column, the bottom of the end plate is fixedly provided with two main binding posts, and the two main binding posts are respectively connected with the conductive thread column and the conductive thread sleeve through wires penetrating through the end plate, the annular convex plate and the insulating cylinder;
The electric equipment comprises an electric equipment body, and is characterized by further comprising an installation seat which is fixedly connected to the electric equipment, wherein an anode connecting threaded port and a cathode connecting threaded port which are respectively matched with the conductive threaded column and the conductive threaded sleeve are formed in the installation seat;
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; the positive electrode connecting threaded port and the negative electrode connecting threaded port are also respectively connected with an external line for supplying power to the equipment;
The isolation frame comprises an outer ring body and an inner ring body, the outer ring body is fixedly connected with the inner ring body 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 slidably clamped on the limiting sliding strip;
the inner wall of the inner cylinder is fixedly connected with radiating fins, 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.
2. The annular heat sink waterproof lithium battery pack assembly of claim 1, wherein: the outside of annular flange is provided with the ring gear, the lock is installed to one side of seal shell, and the spring bolt of this lock is blocked perpendicularly in the ring gear, and the key hole setting of this lock is in one side of seal shell.
3. The annular heat sink waterproof lithium battery pack assembly of claim 2, wherein: the battery pack comprises an insulating bottom plate and an insulating cover plate, wherein the top surface of the insulating bottom plate is connected with a lower hollowed-out cylinder and a connecting column, the bottom surface of the insulating cover plate is connected with an upper hollowed-out cylinder, and the insulating cover plate is fixedly arranged at the upper end of the connecting column through a countersunk bolt; the upper hollow cylinder body and the lower hollow cylinder body are aligned, a lithium battery monomer is arranged between the upper hollow cylinder body and the lower hollow cylinder body, and serial conductive sheets are respectively arranged inside one ends of the upper hollow cylinder body and the lower hollow cylinder body; and an upper binding post is arranged at the top of the insulating cover plate, and a lower binding post is arranged at the bottom of the insulating bottom plate.
4. A ring-shaped heat dissipation waterproof lithium battery pack assembly as defined in claim 3, wherein: the upper binding post and the lower binding post between the upper adjacent battery pack and the lower adjacent battery pack are connected through a short connecting wire, a long connecting wire is connected to the lower binding post of the battery pack positioned at the lowest position, and one end of the long connecting wire is connected with one of the main binding posts of the connector; the upper binding post of the battery pack positioned at the uppermost part 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.
5. A process for preparing an annular heat-dissipating waterproof lithium battery pack assembly for producing the annular heat-dissipating waterproof lithium battery pack assembly of claim 1, comprising the steps of:
s1, respectively and independently producing a connector, a battery pack, a separation frame, a shell and a wind ball;
s2, production of a connector, wherein an air outlet pipe, an end plate, an annular convex plate and an insulating cylinder are arranged into an integrated plastic structure and are formed by injection molding; then, an air inlet is formed in the side face of the end plate and communicated with the air outlet pipe; the surface of the end plate is provided with a through hole which is convenient for a hexagon bolt to pass through, the insulating cylinder is of a hollow structure, the side wall of the insulating cylinder is penetrated and embedded with a conductive block, the bottom of the end plate is provided with a mounting hole which is communicated with the inside of the insulating cylinder, a main binding post is arranged 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 thread column; 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 thread column into the insulating cylinder; bonding a sealing rubber gasket to the bottom of the end plate; the thread pitches of the conductive thread columns and the conductive thread sleeves are equal; the cover body is sleeved outside the end plate and welded at the joint; finally, polishing a chamfer angle at the inner opening of the lower end of the cover body;
S3, producing a battery pack, wherein the insulating bottom plate, the lower hollow cylinder body and the connecting column are arranged into an integrated plastic structure, and are formed by compression molding; during compression molding, embedding the series conductive sheet and the lower binding post on an insulating bottom plate, and arranging a threaded hole on the end face of the upper end of the connecting post; the insulating cover plate and the upper hollow cylinder are arranged into an integrated plastic structure and are formed by compression molding; wherein the series conductive sheet and the upper terminal are embedded into the insulating cover plate during compression molding; then a counter sunk hole is correspondingly formed on 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 countersunk bolts;
S4, producing an isolation frame, wherein the isolation frame is of an aluminum alloy structure, integrally compression-molded, and then spraying insulating paint on the surface of the isolation frame;
s5, producing a shell, wherein the outer cylinder and the radiating connecting piece are of an integrated copper structure, the inner cylinder is of a copper structure, the inner cylinder and the outer cylinder are welded together through an annular connecting plate, then, a threaded hole which is convenient for installing a hexagonal bolt is formed in the upper end of the outer cylinder, and a threaded hole which is convenient for installing a wind ball is formed in the bottom of the annular connecting plate; the copper sheet is wound on the outer side of the radiating connecting sheet and is connected with the radiating connecting sheet in a brazing way during manufacturing, so that the radiating cylinder is formed;
s6, assembling: stacking the isolation frame and the battery pack, and connecting the battery packs in series through a short connecting wire; bonding the isolation frames and the battery packs together in a one-to-one correspondence manner, and then sequentially installing each isolation frame and the battery packs into an installation area between the inner cylinder and the outer cylinder; then connecting one end of the uppermost short connecting wire and one end of the uppermost long connecting wire with the main binding post; then the connector is covered and locked and fixed through a hexagonal bolt, and the cover body is sleeved on the outer side of the heat dissipation cylinder in a pressing mode; and then the wind ball is mounted on the annular connecting plate through bolts, so that the assembly is completed.
6. The process for preparing the annular heat-dissipation waterproof lithium battery pack assembly according to claim 5, wherein the process comprises the following steps of: wherein, in S2 step, when the connector is produced, need synchronous production and equipment fixed connection' S mount pad, wherein, the pitch of the anodal screw thread mouth of connecting of mount pad equals with the screw thread mouth of connecting of negative pole, and the in-process needs to debug for the mount pad can screw thread connection cooperation with the connector.
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