CN100428531C - Protective cover for a battery assembly - Google Patents

Protective cover for a battery assembly Download PDF

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Publication number
CN100428531C
CN100428531C CNB200610001640XA CN200610001640A CN100428531C CN 100428531 C CN100428531 C CN 100428531C CN B200610001640X A CNB200610001640X A CN B200610001640XA CN 200610001640 A CN200610001640 A CN 200610001640A CN 100428531 C CN100428531 C CN 100428531C
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CN
China
Prior art keywords
protective cover
side plate
protuberance
recess
busbar
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Expired - Fee Related
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CNB200610001640XA
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Chinese (zh)
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CN1808740A (en
Inventor
桥田修
小久保毅之
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Publication of CN1808740A publication Critical patent/CN1808740A/en
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Publication of CN100428531C publication Critical patent/CN100428531C/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention provides a battery with good production rate and a battery safety cover produced with good production rate. The battery of the utility model comprises a plurality of cells (10), omnibus bars (50) used for connecting adjacent cells (10), electric insulating side plates (60), connecting components (92) used for connecting the omnibus bars (50) to output terminals (12) arranged beside the cells, and an electric insulating safety cover (80). The electric insulating safety cover (80) is covered on the side plates (60) and provided with openings (82) which are freely opened and closed and used for the connecting components (92) to pass through. When the omnibus bars (50) maintained on the side plates (60) are connected to the output terminals (12) arranged beside the cells (10) by the all-through connecting components (92), the openings are closed.

Description

Battery pack and protective cover
Technical field
The present invention relates to battery pack and protective cover.
Background technology
For example, the battery pack of carrying on the vehicles such as automobile or electric car has a plurality of batteries.Battery utilizes busbar being connected in series, exportable high voltage.Busbar is a metallic conductor, remains on electrical insulating property side plate (end plate), is connected (for example with reference to TOHKEMY 2001-345082 communique) with the lead-out terminal that is configured in the battery side.
But busbar has a plurality of, owing to will have the connection operation of connecting moves and insulation action repeatedly, so in operation, the busbar after the connection may short circuit, requires cautiously to carry out operation.For this reason, aspect operation, problem is arranged, be difficult to boost productivity.
Summary of the invention
The present invention makes in order to solve above-mentioned the problems of the prior art, and its objective is provides the battery pack with good productivity and be used to have the protective cover that battery pack is made on good productivity ground.
To achieve these goals, the battery pack of technical scheme 1 record of the present invention is characterized in that, comprising:
A plurality of batteries;
Be used to connect the busbar of adjacent battery;
Be used to keep the electrical insulating property side plate of described busbar;
Be used for described busbar is connected to the connecting elements of the lead-out terminal that is configured in described battery side; And
Have the peristome of the freely openable that runs through for described connecting elements and be configured to cover the electrical insulating property protective cover of described side plate;
When the busbar that is kept by described side plate was connected to the lead-out terminal that is configured in the battery side by the connecting elements that runs through, described peristome was closed.
To achieve these goals, the protective cover of technical scheme 15 records of the present invention is applicable to battery pack, and this battery pack comprises:
A plurality of batteries;
Be used to connect the busbar of adjacent battery;
Be used to keep the electrical insulating property side plate of described busbar; And
Be used for connecting elements that described busbar is connected with the lead-out terminal that is configured in described battery side;
This protective cover is the electrical insulating property protective cover that is configured to cover described side plate, it is characterized in that,
This protective cover has the peristome of the freely openable that runs through for described connecting elements;
When the busbar that is kept by described side plate was connected to the lead-out terminal that is configured in the battery side by the described connecting elements that runs through, described peristome was closed.
According to the present invention, owing to be used to keep the electrical insulating property side plate of busbar to be covered by the electrical insulating property protective cover, so, do not need the action of insulating individually, can prevent to connect the busbar short circuit that finishes.On the other hand, because connecting elements can make busbar be connected with the lead-out terminal that is configured in the battery side, so protective cover does not hinder connecting moves through the peristome insertion of the freely openable of protective cover.Therefore, it is easy to connect operation, has good working, can boost productivity.That is the protective cover that the battery pack with good productivity can be provided and be used to have good productivity ground manufacturing battery pack.
Description of drawings
Fig. 1 is the stereogram that is used to illustrate the battery pack of execution mode 1.
Fig. 2 is the end view of battery component shown in Figure 1.
Fig. 3 is the sectional view of battery component.
Fig. 4 is the stereogram that is used for illustrating 2 primary cells that are built in battery component shown in Figure 1.
Fig. 5 is used to illustrate the protective cover of execution mode 1 and the vertical view of side plate.
Fig. 6 is the vertical view that is used to illustrate the busbar that remains on side plate.
Fig. 7 is the vertical view that is used to illustrate the busbar resettlement section of side plate.
Fig. 8 is the VIII-VIII line sectional view among Fig. 7.
Fig. 9 is the IX-IX line sectional view among Fig. 7.
Figure 10 is the sectional view that is used to illustrate the peristome of protective cover.
Figure 11 is the sectional view that is used to illustrate the recess of protective cover.
Figure 12 is the sectional view that is used to illustrate the protuberance of side plate.
Figure 13 is the sectional view that is used to illustrate the connecting elements of busbar.
Figure 14 is the sectional view that is used to illustrate the connection operation of execution mode 1, and the insertion of expression connecting elements midway.
Figure 15 follows Figure 14, and the expression connecting elements inserts the sectional view that finishes.
Figure 16 is the sectional view that is used to illustrate the protective cover of execution mode 2.
Figure 17 is the sectional view that is used to illustrate the side plate of execution mode 2.
Figure 18 is the sectional view that is used for illustrating the 1st fixed position of execution mode 2.
Figure 19 is the sectional view that is used for illustrating the 2nd fixed position of execution mode 2.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.
Fig. 1 is the stereogram that is used to illustrate the battery pack of execution mode 1, and Fig. 2 is the end view of battery component shown in Figure 1, and Fig. 3 is the sectional view of battery component, and Fig. 4 is the stereogram that is used for illustrating 2 primary cells that are built in battery component shown in Figure 1.
The battery pack of execution mode 1 is the on-vehicle battery that is equipped on the vehicles such as automobile or electric car, has 12 battery components (battery) 10.Stacked 3 and form battery group 30 of battery component 10, battery pack has 4 battery group 30.Battery group 30 is by configuration in parallel.The number of the battery component 10 of formation battery pack, the structure or the joint construction of battery group 30 are not particularly limited, and can suitably select combination according to the performance that requires of battery pack.
The superiors' battery component 10 mountings of battery group 30 restraining plate 45.Use clamping and self-contained battery group 30 between the end box 40 of shell at restraining plate 45 and battery pack.
Same one side in battery component 10 sides disposes the hole of cutting of U font, exposes lead-out terminal (positive and negative electrode) 12.Lead-out terminal 12 has the terminal surface 13 that is disposing hole portion 16.Hole portion 16 has the interior week that is formed with ridge.Around lead-out terminal 12, disposing insulating component 18.
Battery component 10 is a kind of of battery pack, has a plurality of secondary cells 20 that are being electrically connected in series.It is more satisfactory that this is configured in the aspect that can easily reach high voltage, still, also can be made of monocell as required.In addition, it is all more satisfactory that the correspondence of layout is changed in modularization for the operability in the manufacturing process and assembleability, according to the vehicle to change that is carried.
Secondary cell 20 is lithium rechargeable batteries of platypelloid type, has to stack gradually the generating parts that positive plate, negative plate, dividing plate form.Encapsulating material 22 sealings such as generating parts tegillum press mold.Secondary cell 20 has the plate electrode corbel back slab 24,26 that exports to the outside from encapsulating material 22.Electrode corbel back slab 24 is side of the positive electrode, and electrode corbel back slab 26 is negative side.The secondary cell 20 of battery component 10 for example also can adopt nickel-hydrogen cell and nickel-cadmium cell.
Fig. 5 is used to illustrate the protective cover of execution mode 1 and the vertical view of side plate; Fig. 6 is the vertical view that is used to illustrate the busbar that remains on side plate; Fig. 7 is the vertical view that is used to illustrate the busbar resettlement section of side plate; Fig. 8 is the VIII-VIII line sectional view among Fig. 7, and Fig. 9 is the IX-IX line sectional view among Fig. 7.
The battery pack of execution mode 1 also has the connecting elements 92 that is used for busbar 50, the side plate 60 that is used to keep busbar 50, the protective cover 80 that adjacent battery component is electrically connected and is used to connect busbar 50.Busbar 50 is used to a plurality of battery components 10 are connected in series, can carry out the output under the high voltage.
Busbar 50 is metallic conductors of flattened rectangular shape, has through hole 52.Through hole 52 is used to run through connecting elements 92, busbar 50 is connected to the lead-out terminal 12 that is configured in the battery component side.
Side plate 60 and protective cover 80 are connected by the hinge member 70 that can freely bend.Hinge member 70 is owing to being not to be made of mechanical mechanism, so miniaturization easily is therefore more satisfactory.
Side plate 60, protective cover 80 and hinge member 70 are made of the electrical insulating property resin, are integrally formed.Therefore, can reduce the parts cost.Electric insulation resin is not particularly limited, for example polypropylene.The thickness of hinge member 70 is littler than the thickness of side plate 60 and protective cover 80, can bend to slightly larger circular-arc.
Side plate 60 has the protuberance 66 that is used to accommodate the resettlement section 62 of busbar 50 and is used for fixing protective cover 80.
Resettlement section 62, have 7 along landscape configuration, longitudinally configuration has 3, has peristome 63, bridge portion 64 and handle part 65.
Peristome 63 is used to locate the through hole 52 of busbar 50, runs through for connecting elements 92.The size of peristome 63, the terminal surface 13 of specific output terminal 12 and to dispose the size of busbar end of through hole 52 big.Bridge portion 64 disposes handle part 65 between peristome 63.In the central portion side part that handle part 65 is releasably installed busbar 50, be used to prevent that busbar 50 from coming off.In addition, Reference numeral 61 is through holes, is used for connecting forceful electric power and light current cable with bolt.
Protective cover 80 has peristome 82 and recess 86, and by flexure hinge member 70, this protective cover 80 is configured to cover side plate 60.Therefore, do not need the action of insulating individually, can prevent that the busbar 50 that remains on side plate 60 from contacting with foreign matter, can prevent short circuit.Foreign matter for example is conductive features or instrument.
Do not need the action of insulating individually, this point is highly suitable for battery pack.For example, battery pack has a plurality of lead-out terminals, and whole connection operation required times is longer, and when each connected operation, the action of must insulating (for example pasting insulating tape) prevented short circuit.Therefore, omitted and divided other insulation action, can shorten whole connection workloads significantly.
Figure 10 is the sectional view that is used to illustrate the peristome of protective cover, and Figure 11 is the sectional view that is used to illustrate the recess of protective cover, and Figure 12 is the sectional view that is used to illustrate the protuberance of side plate.
Peristome 82 is used to make connecting elements 92 to run through, and has flexible portion 84.But flexible portion 84 has elasticity and free bend, and is just crooked when being urged, and opens peristome 82; And when pushing force disappears,, close peristome 82 by elastic recovery.That is, but flexible portion 84 constitutes freely openable with peristome 82 easily.
Flexible portion 84 is towards the central authorities of peristome 82 and disposes a plurality ofly radially, and connecting elements 92 is easily run through.Consider that from the easiness aspect of configuration flexible portion 84 is preferably formed by a plurality of otch that are configured in protective cover 80.
Recess 86 is corresponding with the protuberance 66 of side plate 60, by both tablings be connected (with reference to Figure 12).The protuberance 66 of side plate 60 has taper, and is chimeric with recess 86 elasticity, can freely load and unload.The recess 86 of protective cover 80 and the protuberance 66 of side plate 60 play the effect of the fixture construction that is used for fixing protective cover 80 and side plate 60.Therefore, do not need the other parts that are used for fixing protective cover and side plate 60, can make simple structureization.In addition, because the structure of protuberance 66 and recess 86 is uncomplicated, so can form easily.
Recess 86 is configured in from the end face 87 of the pronathous jut 88 of general planar.Therefore, when recess 86 and protuberance 66 are chimeric, between protective cover 80 and side plate 60, can easily form the clearance D corresponding with the height of jut 88.By the space that clearance D forms, can be used for the distortion of flexible portion 84 and the operation of connecting elements 92.In addition, also protuberance 66 can be configured in protective cover 80, recess 86 is configured in side plate 60.
Figure 13 is the sectional view that is used to illustrate the connecting elements of busbar.
Connecting elements 92 is bolts, has axial region 93 and head 94.Axial region 93 has the diameter of the through hole 52 that can run through busbar 50, and is formed with ridge in periphery.Head 94 can freely run through protective cover 80 peristome 82 and have a diameter bigger than the through hole 52 of busbar 50.Therefore, by through hole 52 so simple actions that the axial region of connecting elements 92 is inserted busbar 50, just can connect and be electrically connected busbar 50 simply by the head 94 of connecting elements 92.
Axial region 93 is corresponding with the hole portion 16 of the terminal surface 13 that is configured in lead-out terminal 12, and this lead-out terminal 12 is configured in the side of battery component 10, and the ridge of axial region 93 peripheries can free threaded engagement with the ridges in week in the hole portion 16.
Therefore, be embedded in the head 94 of connecting elements 92, make connecting elements 92 rotations, thereby can make the axial region 93 and hole portion 16 threaded engagement of connecting elements 92 by shaft-like rotating part with torque spanner.In addition, be used to make the instrument of connecting elements 92 rotations, be not limited to torque spanner.
When axial region 93 penetrated the peristome 82 of protective cover 80, the flexible portion 84 of pushing peristome 82 made its bending, thereby peristome 82 can be opened.On the other hand, when whole connecting elements 92 passed through peristome 82, owing to removed the pushing force that makes 84 distortion of flexible portion, so flexible portion 84 restores by its elasticity, the peristome 82 of protective cover 80 was closed.
Promptly; with the rotating part that is inserted into the torque spanner in the peristome 82; with the axial region 93 of connecting elements 92 and hole portion 16 threaded engagement of lead-out terminal 12; busbar 50 is connected with lead-out terminal 12; then; when extracting the rotating part of torque spanner from peristome 82, the peristome 82 of protective cover 80 is closed.Because protective cover 80 does not hinder the connecting moves of connecting elements 92, and keeps the state of insulation of busbar 50 and connecting elements 92, so the action of needn't additionally insulating.
Below, the connection operation of execution mode 1 is described.Figure 14 is that the expression connecting elements inserts sectional view midway, and Figure 15 follows Figure 14, and the expression connecting elements inserts the sectional view that finishes.In addition, omit torque spanner 98 among Figure 15.
The side plate 60 of maintenance busbar 50 is configured in the side of battery component 10.The center of the through hole 52 of busbar 50 is oriented to overlap with the center of the hole portion 16 of battery component 10.
Protective cover 80 is configured to: after hinge member 70 was bent, protective cover 80 covered side plates 60.Owing to prevented that the busbar 50 that remains on side plate 60 from contacting with foreign matter, so can prevent short circuit.
When the protuberance 66 of side plate 60 and the recess of protective cover 80 86 were chimeric, side plate 60 and protective cover 80 were fixed.At this moment, the center of the peristome 82 of protective cover 80 is oriented to overlap with the center of the through hole 52 of busbar 50.The jut 88 of protective cover 80 has formed the clearance D (with reference to Figure 12) for 84 distortion of flexible portion and connecting elements 92 operations between protective cover 80 and side plate 60.
Then, connecting elements 92 runs through the peristome 82 of protective cover 80.The axial region 93 of connecting elements 92 pushes the flexible portion 84 of peristomes 82 and makes its bending, thereby peristome 82 is opened (with reference to Figure 14).
The axial region 93 of connecting elements 92 by the through hole 52 of busbar 50, inserts the hole portion 16 of the terminal surface 13 of the lead-out terminal 12 that is formed on battery component 10.On the other hand, the rotating part of torque spanner 98 is inserted peristome 82, make its head chimeric, connecting elements 92 is rotated with connecting elements 92.
The axial region 93 and the hole portion 16 of connecting elements 92 advance while carrying out threaded engagement.And the busbar 50 that remains on side plate 60 is connected head 94 pushings of member 92, when the lead-out terminal 12 of busbar 50 and battery component 10 is connected, and the insertion of connecting elements 92 finish (with reference to Figure 15).
Then; the rotating part of removing torque spanner 98 is chimeric with the head 94 of connecting elements 92, makes torque spanner 98 risings, thereby when the rotating part of torque spanner 98 extracted from peristome 82; flexible portion 84 restores by its elasticity, and the peristome 82 of protective cover 80 is closed.That is, when the busbar 50 that remains on side plate 60 was connected to the lead-out terminal 12 that is configured in battery component 10 sides by connecting elements 92, peristome 82 was closed.
Whole busbars 50 and battery pack after being connected of lead-out terminal 12 finishes to keep the state of protective cover 80, carry on vehicle.When maintenance vehicle,,, also be more satisfactory in this respect so can easily carry out maintenance activity because protective cover 80 has the function that prevents that busbar 50 from exposing.
As mentioned above, in execution mode 1,,, can prevent to connect the busbar short circuit that finishes so do not need other insulation action of branch owing to be used to keep the protected cover of side plate of busbar to be covered with.On the other hand, connecting elements inserts through the peristome of the freely openable of protective cover, busbar can be connected with the lead-out terminal that is configured in the battery component side, so protective cover does not hinder connecting moves.Therefore, it is easy to connect operation, has good working, can boost productivity.That is, execution mode 1 can provide the battery pack with good productivity and be used for the protective cover that productivity ratio is made battery pack well.
In addition, form joint-cutting, form and the chimeric carrier of joint-cutting, can easily carry out the location of side plate 60 in the upper surface of end box 40 in the bottom of side plate 60.
Fixture construction is not limited to the mode of utilizing recess 86 and protuberance 66 chimeric, for example also can adopt double faced adhesive tape, clamp, welding.
Connecting elements 92 is not limited to bolt, for example also can adopt rivet.
Hinge member 70 also can be individually formed and then be bonded on side plate 60 and protective cover 80 and constitute.
Side plate 60 also can be connected with the suitable member beyond the hinge member 70 with protective cover 80.In addition, also can not utilize hinge member 70, but protective cover 80 is configured in end box side.Also can after finishing, the connection operation as required protective cover 80 be unloaded down its separation in addition.
Figure 16 is the sectional view that is used to illustrate the protective cover of execution mode 2.Figure 17 is the sectional view that is used to illustrate the side plate of execution mode 2.
Execution mode 2 and execution mode 1, generally speaking difference is: reduced the space (dead band) that occupied by side plate and protective cover.
Specifically, the fixture construction of execution mode 2 has the 1st fixed mechanism and the 2nd fixed mechanism, and the 1st fixed mechanism and the 2nd fixed mechanism are used for changing the gap of protective cover and side plate before and after the connection of busbar is finished.Gap with the 2nd fixed mechanism fixedly the time, than with the 1st fixed mechanism the gap fixedly the time little.Therefore, can make the battery-pack exterior casing miniaturization.In addition,, mark similar Reference numeral,, omit its explanation for avoiding repetition to having the member of identical function with the 1st execution mode 1.
Protective cover 180 has the pronathous jut 188,198 from general planar.Jut 188 has the end face 187 that has disposed recess 186,189.Jut 198 has the end face 197 that disposes recess 196.Jut 188,198 has roughly the same height.Recess 186,189,196 has the roughly the same degree of depth.
Side plate 160 have the general planar of being configured in base portion taper protuberance 172,174 and from pronathous jut 168,178.
Jut 168 has the end face 167 that disposes taper protuberance 166.Protuberance 166 is chimeric with recess 186 elasticity of the jut 188 of protective cover 180, and both can freely load and unload.Protuberance 166 and recess 186 constitute the 1st fixed mechanism.That is, because the structure of protuberance 166 and recess 186 is uncomplicated, so can easily form the 1st fixed mechanism.
Protuberance 172 (the 2nd protuberance) is chimeric with recess 189 elasticity of the jut 188 of protective cover 180, and both can freely load and unload.Protuberance 174 is chimeric with recess 196 elasticity of the jut 198 of protective cover 180, and both can freely load and unload.Protuberance 172,174 and recess 189,196 constitute the 2nd fixed mechanism.That is, because the structure of protuberance 172,174 and recess 189,196 is uncomplicated, so can easily form the 2nd fixed mechanism.
Jut 178 has the end face 177 that disposes protuberance 176.The protuberance 176 of taper can free butt with the recess 196 of the jut 198 of protective cover 180.Jut 168,178 has roughly the same height.Height from the base portion of side plate 160 to the top of protuberance 166,176 is configured to littler than the height of the jut 188,198 of protective cover 180.
Side plate 160 is being connected by hinge member (figure does not show) with protective cover 180.Side plate 160, protective cover 180 and hinge member are made of the electrical insulating property resin and are shaped as one.The thickness of hinge member is littler than the thickness of side plate 160 and protective cover 180, can bend to slightly larger circular-arc.
In addition, also protuberance 166,172,174 can be configured in protective cover 180, recess 186,189,196 is configured in side plate 160.
Figure 18 is the sectional view that is used to illustrate the 1st fixed position of execution mode 2, and Figure 19 is the sectional view that is used to illustrate the 2nd fixed position of execution mode 2.The 1st fixed position and the 2nd fixed position are meant fixed position before and after finishing being connected of busbar, protective cover 180 and side plate 160.
When the connection of busbar began, protective cover 180 and side plate 160 were set at the 1st fixed position.At this moment, the peristome of protective cover 180 (not shown) be configured in being used in the side plate 160 and accommodate peristome (figure does not show) contraposition of the resettlement section of busbar (figure do not show).
In the 1st fixed position; recess 186 by the end face 187 of the chimeric jut 188 that is configured in protective cover 180 flexibly, with the protuberance 166 of the end face 167 of the jut 168 that is configured in side plate 160, thereby protective cover 180 and side plate 160 can be fixed with freely loading and unloading.Be configured in the recess 196 of end face 197 of the jut 198 of protective cover 180, with protuberance 176 butts of the end face 177 of the jut 178 that is configured in side plate 160.
Because the end face 187 of the jut 188 of protective cover 180 connects with the end face 167 of the jut 168 of side plate 160,177 the connecting of the end face of the end face 197 of the jut 198 of protective cover 180 and the jut 178 of side plate 160, so form clearance D between protective cover 180 and side plate 160 1Clearance D 1It is the height sum of the jut 168,178 of the height of jut 188,198 of protective cover 180 and side plate 160.Clearance D 1Be set to the value that is suitable for the busbar connecting moves.
And, with execution mode 1 similarly, the connecting elements (not shown) with the peristome that utilizes protective cover 180 inserts is connected to the busbar that remains on side plate 160 lead-out terminal (not shown) that is configured in the battery component side.
After the connection of busbar is finished, remove the chimeric of recess 186 and protuberance 166, protective cover 180 is moved with respect to side plate 160, thereby protective cover 180 and side plate 160 are set at the 2nd fixed position.At this moment, the curvature of the hinge member of connection side plate 160 and protective cover 180 changes.
In the 2nd fixed position; the recess 196 of the end face 197 of the jut 198 that the recess 189 of end face 187 of jut 188 that is configured in protective cover 180 is flexibly chimeric with the protuberance 172 of side plate 160, be configured in protective cover 180 is flexibly chimeric with the protuberance 174 of side plate 160, thereby protective cover 180 and side plate 160 can fixed with freely loading and unloading.Since the protuberance 166,176 of side plate 160 not with protective cover 180 butts, so do not hinder the chimeric of recess 189,196 and protuberance 172,174.
Because the end face 187 of the jut 188 of protective cover 180, the end face 197 of jut 198 connect with the base portion of side plate 160 respectively, so, between protective cover 180 and side plate 160, form clearance D 2Clearance D 2Corresponding with the height of the jut 188,198 of protective cover 180.
Because clearance D 1Be the height sum of the jut 168,178 of the height of jut 188,198 of protective cover 180 and side plate 160, so clearance D 2Ratio gap D 1Little.
As mentioned above, in execution mode 2, reduced the space (dead band) that occupied by side plate and protective cover 180, can make battery pack shell miniaturization.On the other hand, because the gap between side plate 160 and the protective cover 180 is to be reduced after the connection of busbar is finished, so the connection operation of busbar is not influenced.
In addition, the present invention is not limited to above-mentioned execution mode, can do various changes in the scope of claims.
For example, when constituting the peristome of protective cover, also can form flexible portion with single otch with other members with good rubber-like elasticity.

Claims (23)

1. a battery pack is characterized in that, comprising:
A plurality of batteries;
Busbar, it is used to connect adjacent battery;
The electrical insulating property side plate, it is used to keep described busbar;
Connecting elements, it is used for described busbar is connected to the lead-out terminal that is configured in described battery side; And
The electrical insulating property protective cover has the peristome of the freely openable that runs through for described connecting elements, and this electrical insulating property protective cover is configured to cover described side plate;
When the busbar that is kept by described side plate was connected to the lead-out terminal that is configured in the battery side by the described connecting elements that runs through, described peristome was closed.
2. battery pack according to claim 1 is characterized in that described busbar is formed with through hole; Described connecting elements has the axial region that penetrates in the described through hole and the head bigger than described through hole.
3. battery pack according to claim 2 is characterized in that,
Have the hole portion of the terminal surface that is configured in lead-out terminal, this lead-out terminal is configured in the side of described battery;
Described hole portion has the interior week that is formed with ridge;
The axial region of described connecting elements, have with described hole portion in the periphery of the free threaded engagement of ridge in week.
4. according to each described battery pack in the claim 1～3; it is characterized in that; the peristome of described protective cover; but closed by the rubber-like flexible portion of free bend; the connecting elements pushing that is run through by described flexible portion and crooked, thus described peristome is opened, after described connecting elements is run through; described flexible portion restores by its elasticity, thereby described peristome is closed.
5. battery pack according to claim 4 is characterized in that, described flexible portion towards described peristome central authorities be dispose radially a plurality of.
6. battery pack according to claim 4 is characterized in that, described flexible portion is formed by a plurality of otch that are configured on the described protective cover.
7. according to each described battery pack in the claim 1～3, it is characterized in that described side plate and described protective cover are connected by the hinge member that can freely bend.
8. battery pack according to claim 7 is characterized in that, described side plate, described protective cover and hinge member are by integrally formed.
9. according to each described battery pack in the claim 1～3, it is characterized in that having fixture construction, this fixture construction is used for fixing described protective cover and the described side plate that is configured to cover described surface of side plate.
10. battery pack according to claim 9; it is characterized in that; described fixture construction has the protuberance that one of is configured in described side plate and the described protective cover side and is configured in described side plate and the opposing party's of described protective cover recess, and described protuberance is connected by chimeric with described recess.
11. battery pack according to claim 9 is characterized in that,
Described fixture construction has the 1st fixed mechanism and the 2nd fixed mechanism, and the 1st fixed mechanism and the 2nd fixed mechanism are used for changing the described protective cover and the described interpleural gap that are configured to cover described surface of side plate before and after the connection of described busbar is finished;
Described gap with described the 2nd fixed mechanism fixedly the time, than with described the 1st fixed mechanism the described gap fixedly the time little.
12. battery pack according to claim 11 is characterized in that,
Described the 1st fixed mechanism, have the 1st protuberance that one of is configured in described side plate and the described protective cover side and be configured in described side plate and described protective cover in the opposing party's the 1st recess, described the 1st protuberance and described the 1st recess are by flexibly chimeric and quilt can freely be connected with loading and unloading;
Described the 2nd fixed mechanism has a described side's who is configured in described side plate and described protective cover the 2nd protuberance and is configured in described the opposing party's of described side plate and described protective cover the 2nd recess, and described the 2nd protuberance and described the 2nd recess are connected by chimeric.
13. battery pack according to claim 12 is characterized in that,
Described the 1st protuberance is configured in the base portion of general planar, and described the 2nd protuberance is configured in the end face from described pronathous jut;
Described the 1st recess arrangement is at the end face from pronathous the 1st jut of general planar, and described the 2nd recess arrangement is at the end face from pronathous the 2nd jut of general planar.
14. according to each described battery pack in the claim 1～3, it is characterized in that described battery is made of battery component, described battery component has a plurality of secondary cells that are connected in series.
15. a protective cover is applicable to battery pack, this battery pack comprises:
A plurality of batteries;
Busbar, it is used to connect adjacent battery;
The electrical insulating property side plate, it is used to keep described busbar; And
Connecting elements, it is used for described busbar is connected in the lead-out terminal that is configured in described battery side;
This protective cover is the electrical insulating property protective cover that covers described side plate, it is characterized in that,
Peristome with the freely openable that runs through for described connecting elements;
When the busbar that is kept by described side plate was connected to the lead-out terminal that is configured in described battery side by the described connecting elements that runs through, described peristome was closed.
16. protective cover according to claim 15 is characterized in that, but described peristome closed by the rubber-like flexible portion of free bend, the connecting elements pushing that is run through by described flexible portion and crooked, thus described peristome is opened; After described connecting elements was run through, described flexible portion restored by its elasticity, thereby described peristome is closed.
17. protective cover according to claim 16 is characterized in that, described flexible portion towards described peristome central authorities be dispose radially a plurality of.
18. protective cover according to claim 16 is characterized in that, described flexible portion is formed by a plurality of otch that are configured on the described protective cover.
19., it is characterized in that having the fixture construction that is used for fixing described side plate according to each described protective cover in the claim 15～18.
20. protective cover according to claim 19; it is characterized in that; when described side plate has protuberance; described fixture construction have by with the chimeric and connected recess of described protuberance; when described side plate has recess, described fixture construction have by with the chimeric and connected protuberance of described recess.
21. protective cover according to claim 19 is characterized in that,
Described fixture construction has the 1st fixed mechanism and the 2nd fixed mechanism, and the 1st fixed mechanism and the 2nd fixed mechanism are used for changing protective cover and described interpleural gap before and after the connection of described busbar is finished;
Described gap with described the 2nd fixed mechanism fixedly the time, than with described the 1st fixed mechanism the described gap fixedly the time little.
22. protective cover according to claim 21 is characterized in that,
When described side plate has the 1st protuberance, described the 1st fixed mechanism have by with described the 1st protuberance flexibly chimeric and can freely load and unload connected the 1st recess in ground; When described side plate has the 1st recess, described the 1st fixed mechanism have by with described the 1st recess flexibly chimeric and can freely load and unload connected the 1st protuberance in ground;
When described side plate has the 2nd protuberance, described the 2nd fixed mechanism have by with chimeric and connected the 2nd recess of described the 2nd protuberance; When described side plate has the 2nd recess, described the 2nd fixed mechanism have by with chimeric and connected the 2nd protuberance of described the 2nd recess.
23. protective cover according to claim 22 is characterized in that,
Described the 1st protuberance is configured in the base portion of general planar, and described the 2nd protuberance is configured in the end face from described pronathous jut;
Described the 1st recess arrangement is at the end face from pronathous the 1st jut of general planar, and described the 2nd recess arrangement is at the end face from pronathous the 2nd jut of general planar.
CNB200610001640XA 2005-01-18 2006-01-18 Protective cover for a battery assembly Expired - Fee Related CN100428531C (en)

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Application Number Priority Date Filing Date Title
JP2005-010949 2005-01-18
JP2005010949 2005-01-18
JP2005010949 2005-01-18
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JP2005329193 2005-11-14

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Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
JP5757180B2 (en) * 2011-07-11 2015-07-29 株式会社オートネットワーク技術研究所 Battery wiring module cover, battery wiring module and battery module
JP5872917B2 (en) * 2012-01-27 2016-03-01 矢崎総業株式会社 Power supply
CN104752644B (en) * 2013-12-31 2018-04-20 比亚迪股份有限公司 A kind of power battery extraction insulating protective cover and the power battery module containing the protective cover

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CN2299397Y (en) * 1997-07-19 1998-12-02 国营第七五五厂 Airplane storage battery pack device
JP2000340195A (en) * 1999-05-31 2000-12-08 Sanyo Electric Co Ltd Power supply device
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JP2001307784A (en) * 2000-04-20 2001-11-02 Japan Storage Battery Co Ltd Battery set
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