CN101346832B - Frame member and battery pack employed with the same - Google Patents

Frame member and battery pack employed with the same Download PDF

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Publication number
CN101346832B
CN101346832B CN200680049313XA CN200680049313A CN101346832B CN 101346832 B CN101346832 B CN 101346832B CN 200680049313X A CN200680049313X A CN 200680049313XA CN 200680049313 A CN200680049313 A CN 200680049313A CN 101346832 B CN101346832 B CN 101346832B
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CN
China
Prior art keywords
frame members
upper frame
frame member
framing component
lower frame
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CN200680049313XA
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Chinese (zh)
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CN101346832A (en
Inventor
姜同河
尹成根
郑载植
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Lg Energy Solution
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LG Chemical Co Ltd
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Priority claimed from KR1020060004276A external-priority patent/KR100853620B1/en
Application filed by LG Chemical Co Ltd filed Critical LG Chemical Co Ltd
Priority claimed from PCT/KR2006/005694 external-priority patent/WO2007075019A1/en
Publication of CN101346832A publication Critical patent/CN101346832A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10Primary casings; Jackets or wrappings
    • H01M50/102Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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

Abstract

Disclosed herein are a frame member including an upper frame member having one major surface to which a protection circuit module (PCM) is mounted, and a lower frame member coupled with the upper frame member, the upper and lower frame members being provided at opposite major surfaces thereof with semi-cylindrical battery receiving parts corresponding to outer surfaces of the cylindrical unit cells mounted between the upper and lower frame members, a spacer provided at opposite major surfaces of a rectangular frame with pluralities of semi-cylindrical battery receiving parts corresponding to outer surfaces of the cylindrical batteries, the battery receiving parts being partially open such that the battery receiving parts communicate with neighboring battery receiving parts on the same plane, and a battery pack including the frame member and the spacer.

Description

Framing component and use the battery pack of this framing component
Technical field
The present invention relates to a kind of framing component, a kind of distance piece and a kind of battery pack, described framing component comprises upper frame members and lower frame member, described upper frame members has a main surface, protective circuit module (PCM) is installed on the described main surface, described lower frame member is connected on the described upper frame members, be respectively equipped with semi-cylindrical battery outer portion on the relative main surface of described upper frame members and described lower frame member, described semi-cylindrical battery outer portion is corresponding with the outer surface that is installed on the cylindrical unit cells between described upper frame members and the described lower frame member; Described distance piece is provided with the corresponding semi-cylindrical battery outer of the outer surface of a plurality of and described cylindrical battery portion on the relative main surface of rectangular frame, described battery outer portion is the part opening, makes described battery outer portion communicate with contiguous cells incorporating section in the same plane; Described battery pack comprises described framing component and described distance piece.
Background technology
Growing and along with device for mobile communication to the increase in demand of this device for mobile communication, also increase sharply as the demand of the secondary cell of device for mobile communication energy source.Be the object of many research and developments just wherein, and be widely used commercial at present with the lithium secondary battery that has high-energy-density and high discharge voltage concurrently.
According to the kind of the various external device (ED)s that use secondary cell, secondary cell can use with the individual unit battery forms, or uses with the battery pack form of the element cell that comprises a plurality of mutual electrical connections.For example, the device that volume is little, as mobile phone, can be by power output and default a period of time of capacity running of individual unit battery.On the other hand, the medium-sized or large-scale plant as notebook computer, electric motor car or hybrid electric vehicle etc. is because high-output power and big capacity are necessary for medium-sized or large-scale plant, so need to use battery pack.
Battery pack is a kind ofly to be electrically connected the battery pack structure of being formed by a plurality of element cells mutually with parallel connection and/or series system.Arrangement architecture how to keep element cell is then very important.
When constructing battery pack usually, can adopt column secondary battery, prismatic secondary cell or pouch-shaped secondary battery as element cell.If during as element cell, battery can pile up easily mutually, and the arrangement architecture of battery is very firm, therefore is electrically connected aforementioned battery mutually and there is no the hell and high water part with prismatic secondary cell or pouch-shaped secondary battery.Yet the column secondary battery that has a higher capacity than prismatic secondary cell or packed shape secondary cell is but because of its appearance characteristics cause its battery-arrangements structure that is hard to keep.
For this reason, the method of existing a kind of fixedly connected cylindrical unit cells on the conventional art, it is that cylindrical unit cells welding or spot welding are connected on the nickel plate, the cylindrical unit cells that will connect again wraps with adhesive tape afterwards, or coating plastic skin, keeping the arrangement architecture of cylindrical unit cells, and then constitute battery pack.
But because the intensity of adhesive tape and plastic coating is very limited, the probability of adhesive tape and plastic coating damage or fracture is quite high.Therefore, adhesive tape and plastic coating are not suitable for stably keeping the arrangement architecture of element cell.In addition, if when using adhesive tape assembled battery group, paste and disassemble the very complicated and trouble of process such as adhesive tape, thereby need expend the more time assembling.
And generally with the formal construction battery pack of hard box (hard pack), described hard box is by installing protective circuit in the inner box that wherein is arranged with element cell (core pack), and makes by the outer surface that shell coats inner box.When being assembled into hard box, also need use a kind of device of the arrangement architecture that is used to keep cylindrical unit cells and the described shell that is used for stably installing protective circuit, yet this must increase manufacturing cost and process time with cylindrical unit cells.
For this reason, develop the various fixtures that are used to keep the arrangement architecture of cylindrical battery so far successively.For example, the disclosed patent application NO.1995-10160 of Korea S has disclosed a kind of fixture, and it comprises a kind of distance piece (central partition) and a kind of connecting elements that places cylindrical battery central authorities; When battery placed central partition, connecting elements can be with the outer surface integral coating of battery.But in disclosed fixture, because central partition and connecting elements are separately to make, so make assembling process school trouble.In addition, when not being installed on the appropriate location, may cause connecting elements and central partition to break away from as if connecting elements.
Day, patent application No.2000-100401 of the present disclosure disclosed a kind of central partition that is similar to aforementioned distance piece.Yet this central partition only can be used for each cylindrical battery is separated each other.Shown in Figure 1 as the disclosure case for the holding cylindrical battery, must can be fixed in the electrode tip of cylindrical battery on the circuit board by electrode connecting plate in addition.Therefore, the use of this kind distance piece is restricted, and assembling process is bothered very much.
In addition, the disclosed patent application No.2001-46624 of the U.S. has disclosed a kind of fixture, it comprises a pair of upper and lower covering (cover), central covering (middle cover) and a plurality of supporting rib (ho1ding rib), a plurality of cylindrical batteries are installed between covering and following covering with two-layer stratigraphic structure, and supporting rib is formed at covering inside.The advantage of this fixture is that the cylindrical batteries after the installation is very firm, is supported on the covering by supporting rib but shortcoming is cylindrical battery, if the supporting rib undercapacity, the structural stability of fixture will reduce.Especially because of the cause of its architectural characteristic, central covering can't provide enough mechanical strengths.
Therefore, industry is needed a kind of additionally additional shell badly the constructional device that protective circuit is kept the cylindrical unit cells arrangement architecture simultaneously can stably be installed.
Summary of the invention
Therefore, propose the present invention and solve the problems referred to above and other technical problem that remains unsolved.
Specifically, the object of the present invention is to provide a kind of framing component, it can firmly install cylindrical unit cells and protective circuit module (PCM), and can avoid occurring internal short-circuit.
Another object of the present invention is to provide a kind of distance piece, its utilize minimum assembly and can high conformability ground push away the folded cylindrical unit cells of arranging, and the effective heat that when charging and discharge, produced of deliverying unit battery.
Another purpose of the present invention is to provide a kind of battery pack, and it has high structural stability by utilizing framing component and distance piece, and can produce with compact structure by simple assembling process.
According to an aspect of the present invention; for realizing above-mentioned and other purpose; the invention provides a kind of framing component and prepare a kind of battery pack of using cylindrical battery as its element cell; wherein said framing component comprises upper frame members and lower frame member; described upper frame members has a main surface; the protective circuit module is installed on the described main surface; described lower frame member is connected in described upper frame members; be respectively equipped with semi-cylindrical battery outer portion on the relative main surface of described upper frame members and described lower frame member, described semi-cylindrical battery outer portion is corresponding with the outer surface that is installed on the cylindrical unit cells between described upper frame members and the described lower frame member.
Preferably, each described battery outer cage structure is following structure, promptly, the mid portion of each described semi-cylindrical battery outer portion is an opening, make the mid portion of element cell by described opening of two adjacency communicate with each other, and each described semi-cylindrical battery outer portion partly surround the upper and lower of described element cell.Therefore, when element cell is installed on battery outer portion, the upper and lower of element cell is fixed, element cell and adjacent unit battery separate by battery outer portion simultaneously, and the mid portion of element cell communicates with the mid portion of adjacent unit battery, thus the effective heat that the time produced in charging of deliverying unit battery.
In a preferred embodiment, each described battery outer portion comprises plate shape side extension, it is outstanding with semicircular shape, so that partly cover the external peripheral surface of the opposite end of corresponding units battery, and makes outside the electrode tip of described corresponding units battery is exposed to.The semi-cylindrical battery outer portion that surrounds the element cell upper and lower is used for preventing element cell along laterally moving, and the side extension of battery outer portion is used for preventing that element cell is along the longitudinal movement.
Upper frame members and lower frame member can be bonded with each other in many ways.For example, upper frame members and lower frame member all are provided with default connector, make upper frame members be bonded with each other by engaging between the connector of upper frame members and lower frame member with lower frame member, perhaps upper frame members and lower frame member utilize other connecting elements to be bonded with each other.
In a preferred embodiment, described upper frame members and described lower frame member are respectively equipped with the sectional connector, and described sectional connector can be connected to each other and separate.
For example, aforesaid sectional connector can comprise rod member and engaging groove, described rod member extends and is formed with Connection Element in described Rod end from the sidepiece of described upper frame members and/or described lower frame member, and described engaging groove is formed on described upper frame members and/or the described lower frame member and is corresponding with described connector.
As example, aforesaid Connection Element can be and is formed at engaging and departing uncinus of rod member end, and engaging groove can be along the formed engaging groove of rod member direction of insertion, makes described uncinus can pass described engaging groove respectively.After uncinus passes the corresponding engagement groove, caught, upper frame members and lower frame member are bonded with each other by the formed backstop of engaging groove thickness.
As another example, aforesaid Connection Element can be in that rod member is terminal and forms porose joint element, and engaging groove can form and makes engaging groove communicate with the hole of Connection Element respectively.The inner surface of described Connection Element and described engaging groove is provided with the threaded portion, the inner surface threads engage of additional screws and described Connection Element and described engaging groove.
When Connection Element was uncinus, preferably, the thickness of the end of rod member was less, made that uncinus has elasticity when uncinus passes engaging groove.
Described rod member is formed on two relative diagonally opposing corners of described upper frame members and on two relative diagonally opposing corners of described lower frame member, described two relative diagonally opposing corners of described lower frame member are adjacent with described two relative diagonally opposing corners of described upper frame members.Engaging groove then is located at respectively on two relative diagonally opposing corners that are not provided with rod member of upper frame members and lower frame member.Therefore, when upper frame members and lower frame member are engaged with each other, in upper frame members and lower frame member, limit hexahedral inner space by four rod members, and element cell firmly can be installed in this hexahedral inner space.
As mentioned above, main surface, the top of described upper frame members is provided with and is used for the protective circuit module is connected in sectional connector on the described upper frame members.The protective circuit module is a kind of module that comprises the protective circuit that is used to control battery pack overcharge, overdischarge and overcurrent.Preferably, the protective circuit module is printed circuit board (PCB) (PCB).
The described sectional connector that is used to connect the protective circuit module can or can engage and departing uncinus for the formula that the is slidingly connected projection that is formed at described upper frame members side or bight.
When the sectional connector when being slidingly connected the formula projection; preferably; the formula projection of being slidingly connected is formed on two relative sides or two diagonal angles of framing component; the hook projection is formed on the side or angle of framing component; and it is outstanding to main surperficial inside, the top of framing component; the protective circuit module is fixed when being slidingly connected the mutual slip joint of formula projection in the protective circuit module, an end of protective circuit module is provided with and the corresponding groove of this hook projection simultaneously.
When connector is in the time of can engaging with departing uncinus; preferably; the described joint with departing uncinus is formed on two relative sides or two diagonal angles of framing component, and an end of protective circuit module then is provided with and the corresponding groove of described uncinus.
According to circumstances, described upper frame members and described lower frame member are configured to identical shape, and make described upper frame members and described lower frame member toward each other and described upper frame members and described lower frame member are engaged with each other assemble described upper frame members and described lower frame member by described upper frame members and described lower frame member are arranged as.In the case, the joint of upper frame members and lower frame member can be finished by being located at default connector on the framing component or other connecting elements (securing member or screw as the aforementioned).
In the present invention, framing component is preferably lighter and resistant to elevated temperatures plastic material is made by weight, for example Merlon (PC) or acrylonitrile-butadiene-styrene copolymer (ABS), and framing component preferably is processed into ejection formation.
According to a further aspect in the invention, the invention provides a kind of distance piece, it is used for preparing the battery pack of use cylindrical battery as element cell, wherein said distance piece is provided with the corresponding semi-cylindrical battery outer of the outer surface of a plurality of and described cylindrical battery portion on the relative main surface of rectangular frame, described battery outer portion is the part opening, makes described battery outer portion communicate with contiguous cells incorporating section in the same plane.
Preferably, the top and bottom of described battery outer portion are provided with covering, and described covering is outstanding to the surface, top and bottom of described element cell respectively along the half-cylindrical circumferential surface of described battery outer portion, so that described element cell is fixed.Specifically, aforementioned covering is from the outstanding certain-length of the half-cylindrical circumferential outer surface of battery outer portion, and this length is enough to partly surround the surface, top and bottom of element cell.Therefore, to the outstanding not restriction especially of length of covering, as long as covering can partly surround the surface, top and bottom of element cell.
In a preferred embodiment of the invention, described covering is outstanding from the half-cylindrical circumferential surface of described battery outer portion with U-shaped (shape of a hoof) plate structure, when described element cell was installed on described each battery outer portion respectively, described covering was corresponding to surface, described element cell top and bottom thus.These U-shaped protuberances are used for fixing element cell, but this U-shaped protuberance does not cover the electrode tip of element cell the therefore electrical connection between the realization element cell easily fully.
As mentioned above, battery outer portion is the part opening, makes battery outer portion be connected with contiguous cells incorporating section on the same plane.Hereinafter, this open area is called " peristome ".
Preferably, peristome is formed at the zone line of battery outer portion.When peristome constituted with complete hatch frame, peristome did not have extra height, so the thickness of peristome and rectangular frame is suitable.So, described framework is constituted with slab structure, and wherein a plurality of semi-cylindrical battery outer portion is formed at the top and the bottom of framework, and the mid portion of framework is connected with the top and the bottom one of framework.Therefore, when element cell is installed on battery outer portion, the upper and lower of element cell is fixed, and the half cylindrical structure by battery outer portion makes element cell separate with the adjacent unit battery simultaneously, and the mid portion of element cell is connected with the mid portion of adjacent unit battery.
In addition, described battery outer portion can have through hole (hereinafter being called " first through hole "), by described through hole the main lip-deep battery outer of of being formed at described framework portion is interconnected with the battery outer portion that is formed at another main surface of described rectangular frame.Specifically, first through hole is formed at the plate shape zone line of battery outer portion.Size and not restriction especially of number to first through hole.Also can omit first through hole as needs.
As the peristome of battery outer portion, first through hole is used as the flow of coolant pipeline as air, the heat that therefore effective deliverying unit battery is produced when charging and discharge.
In a preferred embodiment of the invention, distance piece according to the present invention has Vertical Channel, and described Vertical Channel is formed at it and is formed at the position that per four battery outer portions of adjoining each other intersect on the same level of described rectangular frame and opposite planar.Each Vertical Channel can be considered when center of circle that four circles are arranged so that each circle in the space that an imagination forms between these four circles foursquare four jiaos the time, wherein circumference of each circle joins with the circumference of the circle that is positioned at this each adjoining angle of imagination square.Therefore, Vertical Channel is formed at the upper end face central authorities of distance piece along battery outer portion.Vertical Channel forms the diamond shape that comprises four curved surfaces.The size of Vertical Channel and quantity depend on the size and the quantity of employed element cell.
The temperature sensor that is used for the measuring unit battery temperature can be installed on described distance piece.Particularly, temperature sensor can be installed in one or more peristomes.The peristome that temperature sensor is installed can be configured to following structure, that is, wherein a plurality of horizontal through hole are formed in the peristome, and these horizontal through hole extend through framework, finish the installation of temperature sensor thus easily, also make the effect maximization of temperature sensor simultaneously.Hereinafter horizontal through hole is called " second through hole ".Second through hole is formed at the middle section of peristome, and second through hole can communicate with Vertical Channel respectively.Second through hole laterally is formed in the plate shape mid portion of distance piece as the crow flies with first through hole edge.The quantity of second through hole depends on the temperature sensor quantity that is installed in the peristome.
Not restriction especially of kind to temperature sensor.Preferably, temperature sensor thermistor preferably.
In the present invention, described rectangular frame is a kind of rectangular elements that is formed with a plurality of battery outer portion on its relative main surface.In the broadest sense, rectangular frame can be considered by making up the distance piece that a plurality of battery outer portion forms.
The same with aforesaid framing component, preferably lighter and resistant to elevated temperatures plastic material is made according to distance piece of the present invention by weight, for example Merlon (PC) or acrylonitrile-butadiene-styrene copolymer (ABS), and distance piece is processed into for example ejection formation.But the material of distance piece can be different with the material of framing component.
According to a further aspect in the invention, the invention provides a kind of battery pack, it constitutes in the following manner: cylindrical battery is packed into has the distance piece of said structure, promptly, described distance piece is provided with the corresponding semi-cylindrical battery outer of a plurality of and cylindrical battery outer surface portion on the main relatively surface of rectangular frame, described battery outer portion is the part opening, makes described battery outer portion communicate with contiguous cells incorporating section on the same plane; The described cylindrical battery that will have distance piece then is installed on the framing component with said structure.
Battery pack according to the present invention can be applicable to needs and makes up in the medium-sized or large-sized battery system of two or more batteries.For example, can be widely used on the battery system of using as middle-scale devices such as notebook computers, perhaps be used for the battery system of using as large-scale plants such as electric motor car or hybrid-power electric vehicles according to battery module of the present invention.
Description of drawings
Can more be expressly understood above-mentioned and other purpose, feature and other advantage of the present invention by detailed description below in conjunction with accompanying drawing, wherein:
Fig. 1 is the perspective view that the upper frame members of the framing component that is used to prepare battery pack according to the preferred embodiment of the invention is shown.
Fig. 2 is the rearview of the upper frame members of Fig. 1.
Fig. 3 is the right side view of the upper frame members of Fig. 1.
Fig. 4 is the plane graph of the lower frame member that engages with the upper frame members of Fig. 1.
Fig. 5 is the perspective view of hook structure that is used to connect the protective circuit module of the framing component of another preferred embodiment according to the present invention.
Fig. 6 and 7 is respectively the plane graph and the perspective view of distance piece that is used to prepare battery pack of the preferred embodiment of the present invention.
Fig. 8 is the end view of distance piece that is used to prepare battery pack of Fig. 6.
Fig. 9 is the front view of distance piece that is used to prepare battery pack of Fig. 6.
Figure 10 is the perspective view that is installed on the cylindrical battery on the distance piece shown in Figure 6.
Figure 11 is the perspective view that is installed on the element cell on the distance piece shown in Figure 7.
Embodiment
Now, will explain the preferred embodiments of the present invention with reference to the accompanying drawings.Yet, should be realized that scope of the present invention is not limited to illustrated embodiment.
Fig. 1 is the typical perspective view of upper frame members 100 of framing component that is used to prepare battery pack according to a preferred embodiment of the invention.
With reference to Fig. 1, upper frame members 100 is sectional connectors, and main surface, its top is installed with protective circuit module (PCM) (not shown).Main surface, the top of upper frame members 100 is provided with the formula projection that is slidingly connected (slide coupling type protrusion) 140,141 and hook projection 142.Main surface, the below of upper frame members 100 then is provided with semi-cylindrical battery outer portion 110, and it is used to take in cylindrical unit cells with the formal construction of the outer surface of corresponding and cylindrical unit cells (not shown).In addition, the bight on main surface, the below of upper frame members 100 is provided with uncinus 121a, 121d and engaging groove 130b, and 130c, diagonally opposing corner ground is relative each other for they.Upper frame members 100 is passed through uncinus 121a, 121d and engaging groove 130b, and 130c engages with lower frame member (not shown).
The formula that is slidingly connected projection 140,141 is formed at the relatively vertically side of upper frame members 100.Hook projection 142 is outstanding towards the inside on the main surface, top of upper frame members 100, makes after the protective circuit module engages with the mode of sliding and the formula projection 140,141 that is slidingly connected, and can the protective circuit module be fixed by hook projection 142.One end of protective circuit module then is provided with the groove corresponding to this hook projection 142.
Each semi-cylindrical battery outer portion 110 is provided with plate shape side extension 114, and it is outstanding with semi-circular shape, partly to cover the opposite end of corresponding unit battery.
Uncinus 121a, 121d are formed at from two of the upper frame members 100 extended rod member 120a of relative diagonally opposing corner, 120d end.Rod member 120a, on the 120d with uncinus 121a, the part of 121d adjacency is with respect to rod member 120a, the thickness of other parts of 120d is littler, therefore as uncinus 121a, when 121d inserts the engaging groove of lower frame member (not shown), uncinus 121a, 121d has elasticity.
Engaging groove 130b, 130c forms along the direction of insertion of the uncinus of lower frame member, makes the uncinus of lower frame member can pass engaging groove 130b, 130c respectively.In addition, engaging groove 130b, 130c has preset thickness, and this thickness makes engaging groove 130b, and 130c is engaged in engaging groove 130b respectively at the uncinus of lower frame member, is enough to during 130c as backstop.
Illustrate in greater detail this structure among Fig. 2 and Fig. 3, wherein, Fig. 2 is the rearview of upper frame members 100, and Fig. 3 is the right side view of upper frame members 100.
With reference to these accompanying drawings as can be seen, as shown in Figure 1, upper frame members 100 comprises be slidingly connected formula projection 140,141 and hook projection 142, and it all is formed on the main surface, top of upper frame members 100, plate shape side extension 114 is outstanding with semicircle shape, rod member 120a, 120d extends from two of upper frame members 100 relative diagonally opposing corners, and uncinus 121a, 121d is formed at corresponding rod member 120a, the end of 120d respectively.
Fig. 4 is the plane graph of the exemplary lower frame member that can engage with upper frame members as shown in Figure 1.
With reference to figure 4, main surface, the below of lower frame member 200 is provided with semi-cylindrical battery outer portion 210, and it is with the formal construction corresponding to the outer surface of cylindrical unit cells (not shown), to take in described cylindrical unit cells.
The top 211 of battery outer portion 210 and bottom 212 constitute with semi-cylindrical structure, and contiguous cells is fixed therein separated from one anotherly.The middle part 213 of battery outer portion 210 is openings, and contiguous cells is communicated with each other.Therefore, battery outer portion 210 is generally constituted with the slab structure that connects along its horizontal one.
Lower frame member 200 is provided with uncinus 121a with upper frame members 100 in its predetermined position, the corresponding engaging groove 230a of 121d, 230d, and be provided with engaging groove 130b with upper frame members 100, the corresponding uncinus 220b of 130c, 220c makes lower frame member 200 to be bonded with each other with the upper frame members 100 shown in Fig. 1.Therefore, by uncinus 121a with upper frame members 100,121d inserts the engaging groove 230a of lower frame member 200 respectively, 230d, and with the uncinus 220b of lower frame member 200,220c inserts the engaging groove 130b of upper frame members 100 respectively, 130c, and upper frame members 100 and lower frame member 200 are bonded with each other.
According to circumstances, lower frame member 200 can be provided be slidingly connected formula projection 240,241 and hook projection 242 in thereunder main surface, so that protective circuit module (not shown) to be installed.
Fig. 5 is the perspective view that framing component according to another preferred embodiment of the invention partly is shown.
With reference to figure 5, main surface, the top of framing component 300 is provided with the connector 350,351 that is used for protective circuit module (not shown).Connector 350,351 is outstanding from vertical opposite side of framing component 300, and it is configured to long hook formation, and the mouth of hook of this uncinus outwardly.The protective circuit module is provided with the engaging groove (not shown) corresponding to the connector 350,351 of framing component 300.The hook connector 350,351 of protective circuit module by framing component 300 inserts the engaging groove of protective circuit modules and engages with framing component 300.Yet except Fig. 1 and structure shown in Figure 5, the protective circuit module also can be installed on the main surface, top of framing component 300 with various syndetons, and these syndetons must be interpreted as within the scope of the invention.
Fig. 6 and Fig. 7 are respectively plane graph and the perspective view for preparing the required distance piece of battery pack according to the preferred embodiment of the invention.
With reference to figure 6 and Fig. 7, wherein, distance piece 400 is configured to the form of rectangular frame.The main relatively surface (being its upper surface and lower surface) of distance piece 400 is provided with a plurality of semi-cylindrical battery outer portion 500,501,502, these battery outer portions are corresponding to the outer surface of each cylindrical unit cells (not shown), to take in these cylindrical unit cells.The zone line of each battery outer portion 500 is provided with peristome 510,511, and the battery outer portion 501,502 of two adjacency is interconnected by peristome 510,511.Especially, each battery outer portion 500 is configured to following structure, that is, top 520 and bottom 530 with half-cylindrical inner surface structure are separated from one another owing to be formed at each battery outer portion 500 middle peristome 510.The more detailed structure of relevant peristome 510 can be with reference to the distance piece end view of figure 8.
With reference to figure 8, to compare with top 520 with half-cylindrical inner surface structure and bottom 530, peristome 510 does not have extra height, so peristome 510 forms smooth surface configuration fully.Therefore, when cylindrical unit cells is installed on each battery outer portion respectively, outside the mid portion of cylindrical unit cells is exposed to by peristome 510.
Refer again to Fig. 6 and Fig. 7, the top and bottom of battery outer portion 500 are provided with covering 540,545, this covering 540,545 is outstanding along the half-cylindrical circumferential surface of battery outer portion with the U-shaped plate structure, partly to surround the surface, top and bottom of element cell (not shown).Therefore, covering 540,545 surrounds the surface, top and bottom of element cells, thus fixed cell battery firmly.But because covering 540,545 is configured to the U-shaped structure, therefore, 540,545 coverings of cover piece that are not covered of the electrode tip of element cell.
The middle body of distance piece 400 is formed with some through holes (first through hole) 550, is located at the battery pair incorporating section of distance piece 400 opposite sides about these through holes 550, and for example two battery outer portions 500,600 can be interconnected by first through hole 550.Also be formed with through hole (second through hole) 560 in some peristomes 510.First through hole 550 is as for example flow of coolant pipeline of air, and second through hole 560 is then as the space that thermistor (not shown) is installed.Special because second through hole 560 along distance piece 400 laterally and thickness direction all be opening, so when thermistor is installed on second through hole 560, can correctly measure the temperature of element cell.The detailed structure of through hole 550,560 can be with reference to the front view of the distance piece 400 of figure 9.
Refer again to Fig. 6 and Fig. 7, the middle body of the upper end of distance piece 400 is provided with Vertical Channel 570, and it is formed at the position that per four battery outer portions that adjoin each other 500,501,600,601 intersect on the same level of distance piece 400 and opposite planar.Vertical Channel 570 communicates with corresponding first through hole 550, so Vertical Channel 570 also can be used as the flow of coolant pipeline.Certainly, Vertical Channel 570 also be formed at some peristomes 510 in second through hole 560 communicate.
Figure 10 is that cylindrical battery is installed on the perspective view on the distance piece of Fig. 6.
As shown in figure 10, element cell 700 is installed on the relative main surface of distance piece 400 with embarking on journey.The covering 540 that is formed at the top and bottom of each battery outer portion (because of the element cell that is accommodated in each battery outer portion does not show) respectively partly surrounds the surface, top and bottom of element cell 700, with fixed cell battery 700 firmly.Yet covering 540 only surrounds the external peripheral surface of element cell.As a result, outside the electrode tip of element cell 700 is exposed to, therefore can realize the electrical connection of 700 of element cells easily.
Though the mounting structure among the embodiment is compact as mentioned above, cylindrical unit cells 700 still can be by Vertical Channel 570 and peristome 510 and outside being exposed to most ofly.Therefore, air flows through the surface of exposing, thereby the heat that element cell 700 is produced when the charge or discharge is easily taken away.
Figure 11 is the perspective view of battery pack 900, and this battery pack 900 has element cell 700 on the framing component of being installed on 100,200.
With reference to Figure 11; by a plurality of element cells 700 are installed on distance piece 400; pile up distance piece 400 on lower frame member 200, then the upper frame members 100 that protective circuit module 800 is installed on the main surface, top is engaged with lower frame member 200 and constitute battery pack 900.
Respectively by the uncinus 121d of upper frame members 100 being inserted the engaging groove 230d of lower frame member 200, and upper frame members 100 and lower frame member 200 are bonded with each other the engaging groove 130b of the uncinus 221b of lower frame member 200 and 221c insertion upper frame members 100 and 130c.
Element cell 700 is installed in the hexahedral inner space that the rod member 220b by the rod member 120d of upper frame members 100 and lower frame member 200 limited.
Because the shape with semicircular plate is outstanding respectively for the side extension 114,214 of upper frame members 100 and lower frame member 200, so outside the electrode tip 710 of cylindrical unit cells 700 can be exposed to.
Though disclose the preferred embodiments of the present invention for convenience of description, but those skilled in the art of the present technique should be realized that, can carry out various modifications, increase and substitute under not breaking away from the situation that is disclosed in scope in the claims and spirit of the present invention.
Industrial applicibility
It is evident that from above-mentioned explanation; has following effect according to the framing component for the preparation of battery pack of the present invention and distance piece; namely; cylindrical battery and holding circuit module (PCM) firmly are installed; reduce simultaneously the component count of required use; prevent the generation of short circuit problem between element cell in the process of assembling or use battery pack; and the heat that produces when effectively removing element cell charging and discharge, and then reach with easy assembling process and produce the battery pack with compactness and rock-steady structure.

Claims (14)

1. framing component, it is used to prepare and uses the battery pack of cylindrical battery as element cell, and wherein said framing component comprises:
Upper frame members, it has a main surface, and protective circuit module (PCM) is installed on the described main surface, and
Lower frame member, it is connected in described upper frame members,
Be respectively equipped with semi-cylindrical battery outer portion on the relative main surface of described upper frame members and described lower frame member, described semi-cylindrical battery outer portion is corresponding with the outer surface that is installed on the cylindrical unit cells between described upper frame members and the described lower frame member
Wherein each semi-cylindrical battery outer portion comprises plate shape side extension, described plate shape side extension is outstanding with semicircular shape, be used for partly covering the external peripheral surface of the opposite end of corresponding units battery, and make outside the electrode tip of described corresponding units battery is exposed to.
2. framing component as claimed in claim 1, wherein each semi-cylindrical battery outer cage structure is following structure, promptly, the mid portion of each semi-cylindrical battery outer portion is an opening, make the mid portion of element cell by opening of two adjacency communicate with each other, and each semi-cylindrical battery outer portion partly surround the upper and lower of described element cell.
3. framing component as claimed in claim 1, wherein said upper frame members and described lower frame member are respectively equipped with the sectional connector, and described sectional connector can be connected to each other and separate.
4. framing component as claimed in claim 3, wherein said sectional connector comprises rod member and engaging groove, described rod member extends and is formed with Connection Element in the end of described rod member from the sidepiece of described upper frame members and/or described lower frame member, and described engaging groove is formed on described upper frame members and/or the described lower frame member and is corresponding with described rod member.
5. framing component as claimed in claim 4, wherein said Connection Element is for can engage and departing uncinus.
6. framing component as claimed in claim 4, the inner surface of wherein said Connection Element and described engaging groove is provided with the threaded portion, and the inner surface of additional screws and described Connection Element and described engaging groove is threadably engaged.
7. framing component as claimed in claim 4, wherein said rod member is formed on two relative diagonally opposing corners of described upper frame members and on two relative diagonally opposing corners of described lower frame member, described two relative diagonally opposing corners of described lower frame member are adjacent with described two relative diagonally opposing corners of described upper frame members.
8. framing component as claimed in claim 1, wherein said upper frame members and described lower frame member are bonded with each other by connecting elements.
9. framing component as claimed in claim 1, main surface, the top of wherein said upper frame members is provided with the sectional connector that is used for the protective circuit module is connected in described upper frame members.
10. framing component as claimed in claim 9, wherein said sectional connector are to be formed at the side of described upper frame members or the formula that the is slidingly connected projection in bight.
11. framing component as claimed in claim 9, wherein said sectional connector are to be formed at the side of described upper frame members or engaging and departing uncinus of bight.
12. framing component as claimed in claim 1, wherein said upper frame members and described lower frame member are configured to identical shape, and make described upper frame members and described lower frame member toward each other and described upper frame members and described lower frame member are engaged with each other by described upper frame members and described lower frame member are arranged as, and assemble described upper frame members and described lower frame member.
13. framing component as claimed in claim 1, wherein said framing component are by having high strength and conductive plastic material is made, and described framing component is made by ejection formation.
14. battery pack, it constitutes in the following manner: cylindrical battery is loaded into distance piece, described distance piece is provided with the corresponding semi-cylindrical battery outer of a plurality of and outer surface cylindrical battery portion on the main relatively surface of rectangular frame, described battery outer portion is the part opening, makes described battery outer portion communicate with contiguous cells incorporating section on the same plane; The described cylindrical battery that will have distance piece then is installed on the framing component as claimed in claim 1.
CN200680049313XA 2005-12-27 2006-12-26 Frame member and battery pack employed with the same Active CN101346832B (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR1020050130423 2005-12-27
KR1020050130423A KR100850866B1 (en) 2005-12-27 2005-12-27 Frame Member for Preparation of Battery Pack
KR10-2005-0130423 2005-12-27
KR10-2006-0004276 2006-01-16
KR1020060004276A KR100853620B1 (en) 2006-01-16 2006-01-16 Spacer for Preparation of Battery Module
KR1020060004276 2006-01-16
PCT/KR2006/005694 WO2007075019A1 (en) 2005-12-27 2006-12-26 Frame member and battery pack employed with the same

Related Child Applications (1)

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CN2010101432964A Division CN101820053B (en) 2005-12-27 2006-12-26 Battery pack spacer

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CN101346832B true CN101346832B (en) 2010-09-01

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KR20070068608A (en) 2007-07-02
KR100850866B1 (en) 2008-08-07

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