CN202601732U - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN202601732U CN202601732U CN2011204983757U CN201120498375U CN202601732U CN 202601732 U CN202601732 U CN 202601732U CN 2011204983757 U CN2011204983757 U CN 2011204983757U CN 201120498375 U CN201120498375 U CN 201120498375U CN 202601732 U CN202601732 U CN 202601732U
- Authority
- CN
- China
- Prior art keywords
- protuberance
- battery module
- battery
- battery pack
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
Abstract
The utility model provides a battery pack, which is formed by stacking a plurality of battery modules. Each battery module is formed by accommodating a stacked body obtained via stacking a plurality of secondary batteries; and in the battery pack, each secondary battery for forming the battery pack can be properly pressurized, and besides, under a state of expansion generated in the battery module, a stress generated by the expansion can be well absorbed. The battery pack is formed by stacking the plurality of battery modules, wherein the battery module is provided with the stacked body formed by stacking the plurality of the secondary batteries, and an accommodating casing for accommodating the stacked body, and the battery pack is characterized in that the main surface of the accommodating casing forming the battery module is provided with a convex part formed at the periphery of the accommodating casing and a convex part located on the inner peripheral side of the convex part, and the plurality of battery modules are mutually stacked in a way that the convex parts are propped against adjacent other surfaces of the battery modules.
Description
Technical field
The utility model relates to the range upon range of a plurality of and battery pack that constitutes of a kind of battery module that will have duplexer and a case, and wherein, this duplexer is range upon range of and constitute with a plurality of secondary cells, and this case is accommodated this duplexer.
Background technology
Current, known a kind of with the range upon range of a plurality of and battery pack that constitutes of battery module, wherein, this battery module is that duplexer that range upon range of a plurality of secondary cells are obtained is accommodated the back and constituted.For example, a kind of battery pack is disclosed, promptly in patent documentation 1; In above-mentioned cells known group; On the case surface of the battery module that constitutes battery pack, a plurality of less protuberances are set, make these a plurality of protuberances against each other, thus a plurality of battery modules are range upon range of and constitute battery pack.
Patent documentation 1: TOHKEMY 2001-313013 communique.
The utility model content
But; In above-mentioned prior art,, form so that cool off in order between battery module, the space to be set owing to be formed at the lip-deep protuberance of case of battery module; So form less protuberance; Therefore, make under the less protuberance situation against each other as noted above, insufficient to the plus-pressure that is contained in a plurality of secondary cells in the battery module.And if plus-pressure is insufficient, the power of secondary cell that then in battery module, is used to keep to constitute battery module is insufficient; Its result produces following problems, promptly; The secondary cell that constitutes battery module produces offset on stacked direction or face direction, reliability reduces.In addition, in above-mentioned prior art, in battery module, produce under the situation about expanding, can't absorb the stress that produces owing to expanding, in the case, the problem that also exists battery pack self to damage.
The problem that the utility model is wanted to solve is, a kind of battery pack is provided, and they are range upon range of a plurality of and constitute with battery module; This battery module is that the duplexer that range upon range of a plurality of secondary cells are obtained is accommodated the back formation; In this battery pack, can each secondary cell that constitute battery module suitably be pressurizeed, and; In battery module, produce under the situation about expanding, can absorb the stress that produces because of this expansion well.
In order to solve above-mentioned problem, the utility model provides a kind of battery pack, its range upon range of a plurality of battery modules and constituting, and wherein, this battery module has: duplexer, its range upon range of a plurality of secondary cells and constituting; And case, it accommodates said duplexer, and this battery pack is characterised in that the case that constitutes said battery module has on first type surface: the protuberance that the periphery of the said case in edge forms; And the recess that is positioned at all sides of said protuberance, said a plurality of battery modules are range upon range of each other with the state of said protuberance and adjacent other battery module surface butt.
According to the battery pack of the utility model, the state of said protuberance to be out of shape by other adjacent battery module pressed is with said battery module surface butt.
Battery pack according to the utility model; The said recess of said case, the duplexer that is housed in the said case pushes to the outside of said battery module, thus; Said protuberance in the outside of said battery module from the outer circumferential side of said case towards said recess tilt; The protuberance of said inclination is by other adjacent battery module pressed, and thus, the part of the protuberance of said inclination deforms; Under the state of distortion, the part after the distortion of the protuberance of said inclination and other adjacent battery module surface butt.
According to the battery pack of the utility model, said duplexer is housed in said case to compare the mode that is positioned at the inboard with the circumferential position of said protuberance.
According to the battery pack of the utility model, the case that constitutes said battery module has said protuberance and recess on the first type surface of both direction up and down, and said a plurality of battery modules are range upon range of each other under said protuberance state against each other.
According to the battery pack of the utility model, said protuberance becomes ring-type along the peripheral shape of said case.
According to the battery pack of the utility model, said protuberance and said recess are formed by same material.
The effect of utility model
According to the utility model, carry out with state through the protuberance that will form along the periphery of case with adjacent other battery module surface butt range upon range of, thereby can each secondary cell that constitute battery module suitably be pressurizeed; And; Because the recess with all sides that are positioned at this protuberance so in battery module, produce under the situation about expanding, can absorb the stress that is caused by this expansion well; Thus, can improve reliability.
Description of drawings
Fig. 1 is the oblique view of the related battery module of this execution mode of expression.
Fig. 2 derives the oblique view that side is observed the battery unit of battery module from lug.
Fig. 3 is the oblique view of the monocell of accommodating in the related battery module of this execution mode of expression.
Fig. 4 is the profile of the related battery module of this execution mode.
Fig. 5 is the figure of the state of the housing 50 under the inner state of not accommodating battery unit of expression.
Fig. 6 is the oblique view of the state of the related battery module of range upon range of 2 these execution modes of expression.
Fig. 7 is the profile of the structure of the related battery pack of this execution mode of expression.
Fig. 8 is the profile that is illustrated in the state that has produced the battery pack under the state that expands in the battery module.
Fig. 9 is the figure of variation of the housing stress of the expression battery module that constitutes the battery pack in this execution mode.
Figure 10 is the figure of the state before expression is pressurizeed to the battery module that constitutes battery pack.
Embodiment
Below, based on accompanying drawing, the execution mode of the utility model is described.
At first, the related battery module 10 of this execution mode is described.Fig. 1 is the oblique view of the related battery module 10 of this execution mode of expression; Fig. 2 derives the oblique view that side is observed the battery unit 20 of battery module 10 from lug, and Fig. 3 is the oblique view of the monocell 30 of accommodating in the related battery module 10 of this execution mode of expression.
As shown in Figure 1, the related battery module 10 of this execution mode has: battery unit 20, and it contains a plurality of (being 4 in the present example) monocells 30 (with reference to Fig. 2, Fig. 3); And housing 50, it accommodates this battery unit 20 in inside.
As shown in Figure 3; Each monocell (battery) 30 for example is a lithium rechargeable battery; It will be housed in the inside of package parts 31 by the generating key element that electrode duplexer and electrolyte constitute, and wherein, the electrode duplexer is alternately laminated and form with positive plate and negative plate across dividing plate.In addition, monocell 30 is general names of monocell 30A～30D.
Laminated film that the package parts 31 of this monocell 30 for example have synthetic resin layer by two face laminated in metal forming etc. constitutes.Under the state of accommodating the generating key element at these package parts 31, its four limits are added the deposited and formation flange 32 of hot melt, thereby accommodate the generating key element in inside.
In addition, the positive plate of above-mentioned formation generating key element and negative plate are connected with the positive pole ear 34 and the negative lug 35 that derive from package parts 31 respectively, and above-mentioned positive pole ear 34 and negative lug 35 derive from a minor face of package parts 31.On the minor face of the both sides of flange 32, be formed for inserting the fixing hole 33 of steady pin respectively.
In battery unit 20,4 monocell 30A～30D closely contacts each other, and, so that lug 34,35 is range upon range of, as shown in Figure 2 to the mode of equidirectional derivation, on the end of deriving lug 34 these sides, 5 shims 41～45 are installed.
The flange 32 of undermost the 1st monocell 30A is between the 1st shim 41 and the 2nd shim 42.In addition, the flange 32 of the 2nd monocell 30B is between the 2nd shim 42 and the 3rd shim 43, and the flange 32 of the 3rd monocell 30C is between the 3rd shim 43 and the 4th shim 44.And the flange 32 of the 4th monocell 30D is between the 4th shim 44 and the 5th shim 45.In addition, though do not illustrate especially, in 4 monocell 30A～30D, 5 shims are installed also on the end of not deriving lug 34,35 these sides.In addition, 5 shims 41～45 are formed with a pair of sleeve pipe 46 that runs through them.
And as shown in Figure 2, deriving from the 1st～the 5th shim 41～45 has outside output cathode terminal 60, outside output negative pole terminal 70 and voltage detecting with terminal 80.
Return Fig. 1, the battery unit 20 that constitutes as stated is housed in the inside of housing shown in Figure 1 50.This housing 50 has: lower house 51, and it is the case shape of upper opening; And upper shell 52, its opening with lower house 51 is closed.Lower house 51 is reeled fastening and fixing with upper shell 52 through making edge portion separately each other.
As shown in Figure 1, on upper shell 52, be formed with 4 bolt-inserting holes 521 with sleeve pipe 46 corresponding mode with battery unit 20.Though do not illustrate especially, lower house 51 also is formed with 4 bolt-inserting holes with sleeve pipe 46 corresponding mode with battery unit 20.And, through in the patchhole 521 of upper shell 52, the sleeve pipe 46 of battery unit 20 and the inserting bolt that inserts in the hole of lower house 51, thereby at housing 50 internal fixation battery units 20.In addition,, constitute by material that can strain as the material that is used to constitute lower house 51 and upper shell 52, in addition, its thickness also form can strain thickness.
As shown in Figure 1, form 3 otch 511,514,515 in the side of lower house 51, outside output cathode terminal 60, outside output negative pole terminal 70 and voltage detecting with terminal 80 respectively from these otch 511,514,515 derivation.
Fig. 4 illustrates along the profile of the battery module 10 of IV-IV line shown in Figure 1.In addition, in profile shown in Figure 4, battery unit 20 that constitutes battery module 10 and lower house 51 and the upper shell 52 that constitutes housing 50 only are shown, omit other structures (also identical among the Fig. 7 that afterwards states, Fig. 8, Figure 10).
Like Fig. 1 and shown in Figure 4, in the battery module 10 of this execution mode, on upper shell 52, be formed with: the upside protuberance 522 of ring-type, its periphery along upper shell 52 forms; And upside recess 523, its upside protuberance 522 by this ring-type surrounds and forms.In addition,, on the lower surface shown in Figure 1 of lower house 51, be formed with upper shell 52 identical ground: the downside protuberance 512 of ring-type, its periphery along lower house 51 forms; And downside recess 513, its downside protuberance 512 by this ring-type surrounds and forms.In addition, the upside protuberance 522 of the downside protuberance 512 of lower house 51 and downside recess 513 and upper shell 52 and upside recess 523 under the situation of observing from Z-direction shown in Figure 1, are respectively formed on the same position.
In addition; In this execution mode; Under the situation of observing from Z-direction shown in Figure 1; The downside protuberance 512 of lower house 51 and the upside protuberance 522 of upper shell 52 form, and make to be housed in the inboard that housing 50 inner battery units 20 are positioned at the circumferential position of downside protuberance 512 and upside protuberance 522.That is, under the situation of observing from Z-direction shown in Figure 1, being housed in housing 50 inner battery units 20 becomes the state that does not have the part of exposing to outer circumferential side from downside protuberance 512 and upside protuberance 522.
Here, Fig. 5 is illustrated in the figure that the state of the housing 50 under the situation of battery unit 20 is not accommodated in inside.That is, Fig. 5 is illustrated in the inner portion of edge separately of not accommodating battery unit 20 and will constitute lower house 51 and the upper shell 52 of housing 50 to reel fastening each other and figure state after making up.As shown in Figure 5, the downside protuberance 512 of lower house 51 and the upside protuberance 522 of upper shell 52 are not accommodated under the state of battery unit 20 parallel in inside.In addition, as shown in Figure 5, the downside recess 513 of lower house 51 and the upside recess 523 of upper shell 52 are towards the interior curve of housing 50.
Here, in this execution mode, being set at less than the thickness t (with reference to Fig. 4) that is contained in the inner battery unit 20 of housing 50 between the central part of the central part of downside recess 513 and upside recess 523 apart from w.That is, become the relation of " w＜t ".Therefore, as shown in Figure 4, in housing 50, accommodated under the situation of battery unit 20, because the influence of the thickness t of battery unit 20 makes lower house 51 and upper shell 52 carry out strain.Specifically; As shown in Figure 4 because the influence of the thickness t of battery unit 20, downside recess 513 and upside recess 523 by respectively to the lateral direction of battery module 10 (in Fig. 4; Downside recess 513 is towards Z axle negative direction, and upside recess 523 is towards Z axle positive direction) pushing.And thus, downside protuberance 512 and upside protuberance 522 become respectively at the state of lateral direction towards downside recess 513 and 523 inclinations of upside recess.In this execution mode; Through forming said structure; Make lower house 51 and upper shell 52 strains; Thereby can produce the reaction force that forms by elastic force to battery unit 20, thus, become and to apply certain stressed structure to battery unit 20 and each monocell 30 that constitutes this battery unit 20.
Especially; In this execution mode; Lower house 51 and upper shell 52 form with material and thickness that can strain; The downside protuberance 512 and downside recess 513, upside protuberance 522 and the upside recess 523 that on lower house 51 and upper shell 52, form, integrally formed with lower house 51 and upper shell 52 respectively, become the structure that can the stress that be applied on the various piece be transmitted each other.Therefore, as noted above, in lower house 51,, not only make downside recess 513 strains, but also make also strain of downside protuberance 512 through being applied to the stress influence on the downside recess 513.In addition, identical ground in upper shell 52, through being applied to the stress influence on the upside recess 523, not only makes upside recess 523 strains, but also makes also strain of upside protuberance 522.
And, in this execution mode that the battery module of this execution mode of formation as noted above 10 range upon range of 2 as shown in Figure 6 is as shown in Figure 7, utilize a pair of end plate 910,920 to pressurize it, thus, can form battery pack 100.In addition, Fig. 6 is the oblique view of state of the battery module 10 of range upon range of 2 these execution modes of expression, and Fig. 7 is the profile of the related battery pack 100 of this execution mode of expression.In addition, profile shown in Figure 7 is the profile from the battery pack 100 of observing with the above-mentioned identical direction of profile shown in Figure 4.In addition, in Fig. 6, Fig. 7, each battery module that constitutes battery pack 100 is made as the 1st battery module 10A, the 2nd battery module 10B (below, also identical in Fig. 8, Figure 10) respectively.
As shown in Figure 7; Battery pack 100 formations as follows that this execution mode is related, that is, that the 1st battery module 10A and the 2nd battery module 10B is range upon range of; They are utilized a pair of end plate 910,920 clampings; Inserting bolt 930 in 4 bolt-inserting holes 521 (with reference to Fig. 1) that on each battery module, form utilizes nut 940 to carry out riveted and fixed, applies plus-pressure thus.
Especially; In this execution mode; As shown in Figure 7, make the relative state of upside protuberance 522 of inclination of downside protuberance 512 and the 2nd battery module 10B of the inclination of the 1st battery module 10A through formation, and utilize end plate 910,920 to apply plus-pressure; Thereby the downside protuberance 512 of the 1st battery module 10A and the upside protuberance 522 of the 2nd battery module 10B are pushed each other; Thus, make downside protuberance 512 and upside protuberance 522 carry out strain, make the mutual butt of part after the distortion of downside protuberance 512 and upside protuberance 522.And, thus,, concentrate on upside recess 523 places of downside recess 513 and the 2nd battery module 10B of the 1st battery module 10A from the plus-pressure of a pair of end plate 910,920 abutment portion via downside protuberance 512 and upside protuberance 522.And its result can apply the plus-pressure from a pair of end plate 910,920 to each monocell 30 of battery unit 20 and formation battery unit 20.
In addition, as shown in Figure 7 in this execution mode, the distance between the central part of the upside recess 523 of the downside recess 513 of the 1st battery module 10A and the 2nd battery module 10B is d
1On the other hand; For example in battery module, produce under the situation about expanding using battery pack 100 repeatedly; The upside recess 523 of the downside recess 513 of the 1st battery module 10A and the 2nd battery module 10B can be distinguished laterally direction (in Fig. 7; The downside recess 513 of the 1st battery module 10A is towards Z axle negative direction, and the upside recess 523 of the 2nd battery module 10B is towards Z axle positive direction) carry out strain.And, through above-mentioned upside recess 523 and downside recess 513 respectively laterally direction carry out strain, can absorb well because the stress that expansion produced of battery module 10A, 10B.In addition, in the case, the distance between the central part of downside recess 513 and upside recess 523 is less than d
1
And; In this execution mode; Since the influence of the expansion that in battery module 10, produces, downside recess 513 and upside recess 523 respectively laterally direction carry out strain, accompany therewith; The also continuous strain of the upside protuberance 522 of the downside protuberance 512 of the 1st battery module 10A and the 2nd battery module 10B; The abutment portion of above-mentioned downside protuberance 512 and upside protuberance 522 increases gradually, and is as shown in Figure 8 at last, becomes the state that carries out butt with the whole surface of downside protuberance 512 and upside protuberance 522.In addition, in example shown in Figure 8, the distance between the central part of downside recess 513 and upside recess 523 is d
2(wherein, d
2＜d
1).
According to this execution mode; On the lower house 51 of the battery module 10 that constitutes battery pack 100; Be formed with: the downside protuberance 512 of the ring-type that forms along the periphery of lower house 51 and surrounded the downside recess 513 that forms by the downside protuberance 512 of this ring-type; In addition, on upper shell 52, also be formed with: the upside protuberance 522 of the ring-type that forms along the periphery of upper shell 52 and surrounded the upside recess 523 that forms by the upside protuberance 522 of this ring-type.And, when layer-built battery module 10,, constitute battery pack 100 thus so that downside protuberance 512 and upside protuberance 522 mode against each other is range upon range of.Therefore; According to this execution mode; Through making downside protuberance 512 and upside protuberance 522 butts; Can transmit reliably to downside recess 513 and upside recess 523 via downside protuberance 512 and upside protuberance 522 being applied to plus-pressure on this abutment portion plus-pressure of a pair of end plate 910,920 (for example from), and, can concentrate at above-mentioned downside recess 513 and upside recess 523 places.And, thus, can be suitably to battery unit 20 and constitute each monocell 30 pressurization of battery unit 20.
Especially; According to this execution mode, form downside protuberance 512 against each other and upside protuberance 522 through periphery along each housing, can make battery module 10 butt area each other bigger; Thus, can make the plus-pressure that is applied between the battery module 10 abundant and suitable.And, its result, can be suitably to battery unit 20 and constitute each monocell 30 pressurization of battery unit 20.
In addition, according to this execution mode, even for example battery module 10 in, produce under the situation about expanding reusing battery pack 100, downside recess 513 and upside recess 523 pass through so that between its central part apart from d
1The mode difference that (with reference to Fig. 7) diminishes is the direction strain laterally, thereby can be absorbed in the formed stress of expansion that produce in the battery module 10 well.And its result can make the reliability of battery pack 100 improve.
And; According to this execution mode; Through being that the state of ring-type forms with the closure along the periphery of each housing with downside protuberance 512 and upside protuberance 522; Thereby can the plus-pressure on the abutment portion that be applied to them plus-pressure of a pair of end plate 910,920 (for example, from) more suitably be concentrated on downside recess 513 and upside recess 523 places (can prevent that plus-pressure from departing to other zone).
Here, Fig. 9 is the figure of variation of the housing stress of the expression battery module 10 that constitutes the battery pack 100 in this execution mode.As noted above; In constituting the battery module 10 of battery pack 100, be set between downside recess 513 central parts and upside recess 523 central parts under the situation of not accommodating battery unit 20 apart from the thickness t (with reference to Fig. 4) of w (with reference to Fig. 5) less than battery unit 20.And; In this execution mode; Thus, the influence of the thickness t through battery unit 20, downside recess 513 and upside recess 523 are respectively by the lateral direction pushing to battery module 10; Thereby downside protuberance 512 and upside protuberance 522 are tilted, can be to the reaction force that elastic force generated of battery unit 20 generations by housing 50.And above-mentioned housing reaction force for example is reaction force F shown in Figure 9
0Represented size.
On the other hand, this reaction force F
0Usually be F with in battery pack 100, keeping battery module 10 required housing reaction forces
1Compare less.Therefore, in this execution mode, when forming battery pack 100; Shown in figure 10, carry out initial press, promptly; Downside protuberance 512 and upside protuberance 522 that battery module 10 (10A, the 10B) influence because of the thickness t of battery unit 20 separately that constitutes battery pack 100 is tilted; It is relative to sentence the state that is in contact with one another at contact area R each other, and, utilize a pair of increased pressure board 910,920 to pressurize.Then, through carrying out initial press, thereby with plus-pressure correspondingly, downside protuberance 512 and upside protuberance 522 are that basic point carries out strain gradually with contact area R, and be as shown in Figure 9, corresponding with desired pressurization, the reaction force of housing 50 increases.Here, Figure 10 is the figure of the state before expression is pressurizeed to the battery module 10 that constitutes battery pack 100.
In addition, in this execution mode, when forming battery pack 100; As shown in Figure 7, make half left and right sides strain of downside protuberance 512 and upside protuberance 522, obtain making the part state against each other after the distortion as stated; As shown in Figure 9, the reaction force that forms housing 50 becomes the state of F2, but in this execution mode; As long as the plus-pressure in the time of will constituting battery pack 100 is set at, the reaction force of housing 50 is F more than or equal to being used to keep the reaction force of battery module 10
1Get final product, be not particularly limited.In other words, according to this execution mode, be F as long as the reaction force of housing 50 drops on more than or equal to being used to keep the reaction force of battery module 10
1Scope in get final product, can at random set the plus-pressure that is applied on the battery module 10.Especially, according to this execution mode, through as noted above with housing 50 use can strain material constitute, thereby as noted above can the plus-pressure that be applied on the battery module 10 setting arbitrarily.In addition, at the reaction force of housing 50 less than F
2Situation under, the butt area between downside protuberance 512 and the upside protuberance 522 is less than example shown in Figure 7, in addition, at the reaction force of housing 50 greater than F
2Situation under, the butt area between downside protuberance 512 and the upside protuberance 522 is greater than example shown in Figure 7.
And, as shown in Figure 9 in this execution mode, be set at F at reaction force with housing 50
2 Battery pack 100 in, even under the situation about for example in battery module 10, produce expanding using battery pack 100 repeatedly, downside recess 513 and upside recess 523 so that between their central part apart from d
1The mode that (with reference to Fig. 7) diminishes respectively laterally direction carry out strain, accompany therewith, downside protuberance 512 and upside protuberance 522 are so that the mode that their butt area increases is carried out strain.Promptly; In this execution mode; In battery module 10, produce under the situation about expanding, as noted above, through downside recess 513 and downside protuberance 512 and upside recess 523 and upside protuberance 522 being become one and carrying out strain; Thereby as shown in Figure 9, can make with battery module in the increase of reaction force of the expansion phase corresponding shell 50 that produces less.And its result even in battery module, produce under the situation about expanding, also can suitably absorb because the stress that this expansion produced.In addition; Different, for example thicker, intensity is higher, be difficult under the situation of material of strain, though the plus-pressure self that applies to the battery unit 20 that constitutes battery module 10 can fully produce as the housing used thickness that is used to constitute battery module 10 with this execution mode; But in battery module 10, produced under the situation about expanding; Can't reduce the stress that produces owing to expanding increases, and therefore, causes the result who is damaged in the stage early.Relative therewith, according to this execution mode, can address the above problem effectively.
And; In this execution mode; The downside protuberance 512 of lower house 51 and the upside protuberance 522 of upper shell 52 are formed, under the situation of observing, be housed in housing 50 inner battery units 20 and compare with the circumferential position of downside protuberance 512 and upside protuberance 522 and be positioned at the inboard from Z-direction.Thus, according to this execution mode, can more suitably transmit plus-pressure, and can further improve the effect that in battery module 10, produces the stress that reducing under the situation about expanding expands is produced to battery unit 20.
And, according to this execution mode, because at lower house 51 and upper shell 52 on the two; Form downside protuberance 512 and upside protuberance 522, downside recess 513 and upside recess 523 respectively, with a plurality of battery module 10 when range upon range of, form and make protuberance each other (promptly; Downside protuberance 512 and upside protuberance 522) state of butt; So can on the both direction up and down of battery unit 20, realize above-mentioned effect therefore, can further improving above-mentioned effect.
In addition; For example also considered additive method, that is, and when forming battery pack through range upon range of a plurality of battery modules; For example so that battery module each other can be not interactional during mode layer-built battery module; Battery module between adjacent battery module, inserts shim, adjust the distance between the adjacent battery module, so that can not be in contact with one another each other, perhaps can not produce by the battery module caused plus-pressure that contacts with each other with specific thickness.On the other hand, in this execution mode, when layer-built battery module 10; Through making downside protuberance 512 and upside protuberance 522 butts; Thereby will be applied directly to from the plus-pressure of pair of end plate 910,920 on each battery module 10, thus, can obtain above-mentioned effect.
In addition, in the above-described embodiment, monocell 30 is equivalent to the secondary cell of the utility model, and battery unit 20 is equivalent to the duplexer of the utility model.
More than, the execution mode of the utility model is illustrated, but above-mentioned execution mode is the content of recording and narrating for easy to understand the utility model, is not to be used to limit the utility model.Therefore, disclosed each key element in the above-mentioned execution mode, expression also comprises all design alterations and the equivalent of the technology contents that belongs to the utility model.
For example; In the above-described embodiment; Downside protuberance 512 and upside protuberance 522 have ring-shaped structure, but raised part is as long as form along the periphery of each housing, for example also can as U font structure etc., become the structure that upwards has open portion week (have and cut structure partly).And, also can be with the interrupted structure that forms of predetermined distance along periphery.In addition; In the above-described embodiment; Illustration have the protuberance that forms along the periphery of each housing on the two and the structure of the recess that surrounded by this protuberance at lower house 51 and upper shell 52, but also can adopt only any therein one to go up the structure that forms raised part and recess.
In addition, in the above-described embodiment, become the mode that constitutes battery pack 100 by 2 battery modules 10, but the quantity of the battery module 10 of formation battery pack 100 also can be more than or equal to 3, is not particularly limited.
Claims (7)
1. battery pack, its range upon range of a plurality of battery modules and constituting, wherein, this battery module has: duplexer, its range upon range of a plurality of secondary cells and constituting; And case, it accommodates said duplexer,
This battery pack is characterised in that,
The case that constitutes said battery module has on first type surface: the protuberance that the periphery of the said case in edge forms; And the recess that is positioned at all sides of said protuberance,
Said a plurality of battery module is range upon range of each other with the state of said protuberance and adjacent other battery module surface butt.
2. battery pack according to claim 1 is characterized in that,
The state of said protuberance to be out of shape by other adjacent battery module pressed is with said battery module surface butt.
3. battery pack according to claim 1 and 2 is characterized in that,
The said recess of said case is housed in duplexer in the said case to the pushing of the outside of said battery module, thus, said protuberance in the outside of said battery module from the outer circumferential side of said case towards said recess tilt,
The protuberance of said inclination is by other adjacent battery module pressed, and thus, the part of the protuberance of said inclination deforms, under the state of distortion, and the part after the distortion of the protuberance of said inclination and other adjacent battery module surface butt.
4. battery pack according to claim 1 is characterized in that,
Said duplexer is housed in said case to compare the mode that is positioned at the inboard with the circumferential position of said protuberance.
5. battery pack according to claim 1 is characterized in that,
The case that constitutes said battery module has said protuberance and recess on the first type surface of both direction up and down,
Said a plurality of battery module is range upon range of each other under said protuberance state against each other.
6. battery pack according to claim 1 is characterized in that,
Said protuberance becomes ring-type along the peripheral shape of said case.
7. battery pack according to claim 1 is characterized in that,
Said protuberance and said recess are formed by same material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-269532 | 2010-12-02 | ||
| JP2010269532A JP5625834B2 (en) | 2010-12-02 | 2010-12-02 | Assembled battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601732U true CN202601732U (en) | 2012-12-12 |
Family
ID=46501829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204983757U Expired - Lifetime CN202601732U (en) | 2010-12-02 | 2011-12-02 | Battery pack |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5625834B2 (en) |
| CN (1) | CN202601732U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711366A (en) * | 2015-11-16 | 2017-05-24 | 三星Sdi株式会社 | Rechargeable battery module |
| CN108232273A (en) * | 2016-12-15 | 2018-06-29 | 丰田自动车株式会社 | The manufacturing method of secondary cell heap |
| CN110931672A (en) * | 2018-09-20 | 2020-03-27 | 株式会社Lg化学 | Battery module, battery pack including the same, and vehicle including the battery pack |
| CN111919307A (en) * | 2018-03-28 | 2020-11-10 | 本田技研工业株式会社 | Solid-state battery and solid-state battery module |
| CN111971814A (en) * | 2018-04-10 | 2020-11-20 | 马瑞利株式会社 | Battery pack and battery module |
| CN112909396A (en) * | 2019-12-04 | 2021-06-04 | Sk新技术株式会社 | Battery unit housing part and battery module including the same |
| WO2021164595A1 (en) * | 2020-02-21 | 2021-08-26 | 比亚迪股份有限公司 | Battery case, battery, battery pack, battery module, and vehicle |
| WO2022103212A1 (en) * | 2020-11-13 | 2022-05-19 | 주식회사 엘지에너지솔루션 | Battery pack having structure capable of swelling control and vehicle comprising same |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014238912A (en) * | 2011-09-28 | 2014-12-18 | パナソニック株式会社 | Battery pack and manufacturing method thereof |
| JP6136407B2 (en) * | 2013-03-15 | 2017-05-31 | 株式会社Ｇｓユアサ | Power module |
| WO2014141779A1 (en) * | 2013-03-15 | 2014-09-18 | Ｎｅｃエナジーデバイス株式会社 | Power cell module and method for producing same |
| JP6168167B2 (en) * | 2014-02-12 | 2017-07-26 | 日産自動車株式会社 | Battery module |
| JP6303729B2 (en) * | 2014-03-31 | 2018-04-04 | 日本電気株式会社 | Battery pack and battery pack manufacturing method |
| JP6635730B2 (en) * | 2015-09-11 | 2020-01-29 | 株式会社エンビジョンＡｅｓｃジャパン | Battery device |
| CN108780856B (en) * | 2016-03-10 | 2019-12-17 | 日产自动车株式会社 | Battery pack |
| JP7064843B2 (en) * | 2017-10-03 | 2022-05-11 | マレリ株式会社 | Batteries assembled |
| JP7067890B2 (en) * | 2017-10-03 | 2022-05-16 | マレリ株式会社 | Batteries assembled |
| JP6532568B1 (en) * | 2018-04-10 | 2019-06-19 | カルソニックカンセイ株式会社 | Assembled battery |
| JP7052680B2 (en) * | 2018-11-07 | 2022-04-12 | トヨタ自動車株式会社 | Battery case |
| KR102396437B1 (en) * | 2019-06-25 | 2022-05-09 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including the same |
| FR3118678B1 (en) * | 2021-01-04 | 2023-06-16 | Faurecia Systemes Dechappement | Electricity storage battery |
| JP7371659B2 (en) | 2021-03-31 | 2023-10-31 | トヨタ自動車株式会社 | Power storage device |
| EP4231422A1 (en) * | 2021-04-23 | 2023-08-23 | LG Energy Solution, Ltd. | Battery module and battery pack including same |
| KR20230026050A (en) * | 2021-08-17 | 2023-02-24 | 주식회사 엘지에너지솔루션 | Battery pack and device including the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005347077A (en) * | 2004-06-02 | 2005-12-15 | Nissan Motor Co Ltd | Battery pack |
| JP4661124B2 (en) * | 2004-08-04 | 2011-03-30 | トヨタ自動車株式会社 | Sheet material type battery, assembled battery combining sheet material type battery, and method of manufacturing sheet material type battery |
| JP2007103344A (en) * | 2005-09-12 | 2007-04-19 | Nissan Motor Co Ltd | Battery pack |
| JP4251204B2 (en) * | 2006-08-31 | 2009-04-08 | 日産自動車株式会社 | Battery module |
| JP5521442B2 (en) * | 2009-09-01 | 2014-06-11 | 日産自動車株式会社 | Assembled battery |
-
2010
- 2010-12-02 JP JP2010269532A patent/JP5625834B2/en active Active
-
2011
- 2011-12-02 CN CN2011204983757U patent/CN202601732U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711366A (en) * | 2015-11-16 | 2017-05-24 | 三星Sdi株式会社 | Rechargeable battery module |
| CN106711366B (en) * | 2015-11-16 | 2021-04-30 | 三星Sdi株式会社 | Rechargeable battery module |
| CN108232273A (en) * | 2016-12-15 | 2018-06-29 | 丰田自动车株式会社 | The manufacturing method of secondary cell heap |
| CN108232273B (en) * | 2016-12-15 | 2021-01-15 | 丰田自动车株式会社 | Method for manufacturing secondary battery stack |
| CN111919307A (en) * | 2018-03-28 | 2020-11-10 | 本田技研工业株式会社 | Solid-state battery and solid-state battery module |
| CN111971814A (en) * | 2018-04-10 | 2020-11-20 | 马瑞利株式会社 | Battery pack and battery module |
| CN110931672A (en) * | 2018-09-20 | 2020-03-27 | 株式会社Lg化学 | Battery module, battery pack including the same, and vehicle including the battery pack |
| CN112909396A (en) * | 2019-12-04 | 2021-06-04 | Sk新技术株式会社 | Battery unit housing part and battery module including the same |
| CN112909396B (en) * | 2019-12-04 | 2024-03-12 | Sk新能源株式会社 | Battery cell housing part and battery module comprising same |
| WO2021164595A1 (en) * | 2020-02-21 | 2021-08-26 | 比亚迪股份有限公司 | Battery case, battery, battery pack, battery module, and vehicle |
| CN113381099A (en) * | 2020-02-21 | 2021-09-10 | 比亚迪股份有限公司 | Battery case, battery pack, battery module and electric vehicle |
| WO2022103212A1 (en) * | 2020-11-13 | 2022-05-19 | 주식회사 엘지에너지솔루션 | Battery pack having structure capable of swelling control and vehicle comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5625834B2 (en) | 2014-11-19 |
| JP2012119232A (en) | 2012-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202601732U (en) | Battery pack | |
| US4996128A (en) | Rechargeable battery | |
| JP6752674B2 (en) | Battery pack | |
| JPWO2019142645A1 (en) | Power storage device | |
| EP2015387A1 (en) | A lithium ion battery | |
| KR20120006637A (en) | Electrode tab assembly for secondary battery and assembling methode of the same | |
| US20190312237A1 (en) | Battery Cell Having Recessed Portion Formed In Connection Region Between Receiving Units | |
| JP2009187889A (en) | Battery case and battery pack | |
| JP2014157722A (en) | Battery pack | |
| US9812731B2 (en) | Battery module | |
| CN104167515B (en) | Cover board and battery | |
| CN105006586A (en) | Compact battery with high energy density and power density | |
| US20230402684A1 (en) | Battery cell, method and system for manufacture same, battery, and power consuming device | |
| US20230036195A1 (en) | Battery, electricity-consuming apparatus, method for manufacturing battery and system of manufacturing battery | |
| WO2023283807A1 (en) | Battery cell, battery, and power-consuming device | |
| EP3690976A1 (en) | Battery cell and battery | |
| CN102544644B (en) | Composite power source composed of lead-acid storage battery monomer and lithium-ion battery monomer connected in parallel | |
| CN107732059A (en) | A kind of Novel square lithium battery standardization module packaging housing and PACK methods | |
| US20230163419A1 (en) | Battery cell, battery, power consuming apparatus, and method and apparatus for manufacturing battery cell | |
| CN102339958B (en) | Seal plate assembly for battery and battery having the same | |
| KR20150095146A (en) | Battery pack | |
| CN201402837Y (en) | Battery | |
| JP2023547006A (en) | Single battery, its manufacturing method and manufacturing system, battery and power usage equipment | |
| KR102089306B1 (en) | Secondary Battery Comprising Battery Case Having Fixing Protrusion Coupled to Fixing Hole of Electrode Tab in Rivet Structure | |
| CN207233831U (en) | A kind of Novel square lithium battery standardizes module packaging housing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190819 Address after: Kanagawa Patentee after: Vision AESC Japan Co.,Ltd. Address before: Kanagawa Patentee before: NISSAN MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |