CN102543489B - Power storage module and work mechanism - Google Patents
Power storage module and work mechanism Download PDFInfo
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- CN102543489B CN102543489B CN201110414072.7A CN201110414072A CN102543489B CN 102543489 B CN102543489 B CN 102543489B CN 201110414072 A CN201110414072 A CN 201110414072A CN 102543489 B CN102543489 B CN 102543489B
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- electricity accumulating
- accumulating unit
- power storage
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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
Abstract
The invention provides a kind of power storage module and work mechanism, described power storage module can discharge from steam vent the gas produced in electricity accumulating unit effectively.In power storage module of the present invention, be laminated with multiple electricity accumulating unit.Maintaining body, to the compression stress of the additional stacked direction of electricity accumulating unit, keeps electricity accumulating unit.Each electricity accumulating unit have overlapping anode and negative electrode electrode zone and to surround electrode zone during the point of view parallel with stacked direction and to be thinner than the fringe region of electrode zone.In region at least partially in electrode zone, maintaining body presses the additional compression stress of mode increased towards inner side from periphery with face.
Description
Technical field
The application advocates the priority of No. 2010-277885th, the Japanese patent application based on application on December 14th, 2010.The full content of its application is by reference to being applied in this specification.
The present invention relates to a kind of power storage module of stacked multiple electricity accumulating unit and carried the work mechanism of power storage module.
Background technology
As the electrical storage device used in work mechanism, electric double layer type capacitor is attracted attention by people.Electric double layer type capacitor such as has the structure being alternately laminated with collector electrode and Porous separator.The surface of collector electrode is coated with point polar electric poles such as active carbon, separator is impregnated with electrolyte.The duplexer of collector electrode and separator is laminated plastic film covering.The duplexer being laminated plastic film covering forms 1 electricity accumulating unit.
If repetition discharge and recharge, then produce gas in electricity accumulating unit.The gas produced in electricity accumulating unit is expelled to outside from the steam vent being arranged at laminated film.In order to reduce the internal resistance of electric double layer type capacitor, to the compression stress of the additional stacked direction of duplexer.Be not limited to electric double layer type capacitor, in the electricity accumulating units such as lithium-ion capacitor, the also additional compression stress in order to the position of fixing electricity accumulating unit usually.
Patent documentation 1: Japanese Unexamined Patent Publication 2006-86236 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2001-11889 publication
When insufficient applied to the compression stress of electricity accumulating unit, because vibration or impact etc. produce the position deviation of electricity accumulating unit, sometimes cause the fault of power storage module.Further, if the gas produced in electricity accumulating unit accumulates the surface in polarity electrode, then effective electrode area diminishes, and storage performance declines.
Summary of the invention
The object of the present invention is to provide a kind of power storage module that can suppress the fault produced because of the position deviation of electricity accumulating unit.Another object of the present invention is to provide a kind of power storage module effectively can discharging the gas produced in electricity accumulating unit from steam vent.Another other objects of the present invention are to provide a kind of work mechanism carrying these power storage module.
According to a viewpoint of the present invention, provide a kind of power storage module, it has:
Stacked multiple electricity accumulating units; And
The maintaining body of described electricity accumulating unit keeps to the compression stress of the additional stacked direction of described electricity accumulating unit,
Each of described electricity accumulating unit have overlapping anode and negative electrode electrode zone and to surround described electrode zone during the point of view parallel with stacked direction and to be thinner than the fringe region of described electrode zone,
In the region at least partially of described electrode zone, described maintaining body presses the additional compression stress of mode increased towards inner side from the periphery of described electrode zone with face.
According to another viewpoint of the present invention, provide a kind of work mechanism, it has:
Above-mentioned power storage module;
Electro-motor, accepts electric power supply from described power storage module; And
Driven object, by described electrical motor driven.
Invention effect:
The gas produced in electricity accumulating unit presses higher area transmissions to lower region from face, be expelled to outside from steam vent.Thereby, it is possible to suppress the storage performance produced because of the accumulation of gas to decline.
Accompanying drawing explanation
In Fig. 1, (1A) is the vertical view of the electricity accumulating unit used in the power storage module based on embodiment 1, (1B) be the sectional view in the single dotted broken line 1B-1B of (1A), (1C) be the sectional view of duplexer, (1D) is the sectional view in the single dotted broken line 1D-1D of (1A).
In Fig. 2, (2A) is the sectional view of the power storage module based on embodiment 1, and (2B) is the sectional view in the single dotted broken line 2B-2B of (2A).
In Fig. 3, (3A) is the sectional view of the power storage module based on embodiment 1, and (3B) is the sectional view of the power storage module based on embodiment 2, and (3C) is the sectional view of the power storage module based on embodiment 3.
In Fig. 4, (4A) is the sectional view of the power storage module based on embodiment 4, and (4B) is the sectional view of the power storage module based on embodiment 5.
In Fig. 5, (5A) is the sectional view of the power storage module based on embodiment 6, and (5B) is the sectional view of the power storage module based on embodiment 7, and (5C) is the sectional view of the power storage module based on embodiment 8.
Fig. 6 is the sectional view of the power storage module based on embodiment 9.
Fig. 7 is the vertical view of the electricity accumulating unit used in the power storage module based on embodiment 10.
In Fig. 8, (8A) is the sectional view of the power storage module based on embodiment 10, and (8B) is the sectional view in the single dotted broken line 8B-8B of (8A).
In Fig. 9, (9A) is the stereogram before folding of Heat transmission plate, and (9B) is the stereogram of the Heat transmission plate after folding.
In Figure 10, (10A) is the partial section of the power storage module based on embodiment 11, (10B) be the partial section of power storage module based on embodiment 12, (10C) is the partial section of the power storage module based on embodiment 13.
Figure 11 carries the synoptic diagram based on the hybrid earth mover based on embodiment 14 of the power storage module of embodiment 1 ~ embodiment 13.
Figure 12 is the end view of the hybrid earth mover based on embodiment 14.
Figure 13 is the block figure of the hybrid earth mover based on embodiment 14.
Figure 14 is the equivalent circuit diagram of the storage circuit of hybrid earth mover based on embodiment 14.
Figure 15 is the schematic top view of the electric shovel based on embodiment 15.
Figure 16 is the block figure of the electric shovel based on embodiment 15.
In figure: 10-electric power storage container, 10A, 10B-laminated film, 11-electric power storage duplexer, 12-the 1st current collection pole piece, 13-the 2nd current collection pole piece, 14-steam vent, 15-exhaust structure thing, 21-the 1st collector electrode, 21A-extension, 22-the 2nd collector electrode, 22A-extension, 25-separator, 27-the 1st polarity electrode, 28-the 2nd polarity electrode, 29-electrode zone, 30-fringe region, 35-electricity accumulating unit, 36-heat transfer plate, 41-pull bar, 42, 43-pressing plate, 51, 52-pressing plate, 53, 54-side plate, 55-base plate, 56-top board, 57-securing member, 60-Heat transmission plate, 61-stream, 62-coolant ingress pipe, 63-coolant discharge pipe, 65-coolant feedway, 70-revolving body (driven object), 71-running gear, 73-floating bearing, 74-engine, 75-hydraulic pump, 76-rotary motor, 77-fuel tank, 78-cooling fan, 79-seat, 80-power storage module, 81-torque-transmitting mechanisms, 82-swing arm, 83-motor generator, 85-dipper, 86-scraper bowl, the attachment plug of 87-external power source, 88-electric pressure converter, 90-power storage module seat, 91-damper (antihunting device), 101A, 101B-hydraulic motor, 107-swing arm cylinder, 108-dipper cylinder, 109-scraper bowl cylinder, 114-main pump, 115-pioneer pump, 116-high-pressure and hydraulic pipeline, 117-control valve, 118-inverter, 119-capacitor, 120-inverter, 122-decomposer, 123-mechanical brake, 124-decelerator, 125-pilot line, 126-operating means, 127, 128-fluid pressure line, 129-pressure sensor, 130-control device, 135-display unit, 136-Temperature Detector, 200-transducer, 201-reactor, 202A-boosting IGBT, 202B-step-down IGBT, 202a, 202b-diode, 203A, 203B-power connector end, 204A, 204B-lead-out terminal, 205-smoothing capacitor, 206-voltmeter, 207-ammeter, 211-voltmeter.
Embodiment
The vertical view of the electricity accumulating unit 35 used in the power storage module based on embodiment 1 shown in Figure 1A.Electric power storage duplexer 11 is accommodated in electric power storage container 10.The flat shape of electric power storage container 10 is such as summit is slightly with circular rectangle.Electric power storage duplexer 11 comprises the 1st collector electrode 21, the 2nd collector electrode 22, separator (dielectric substrate) the 25, the 1st polarity electrode 27 and the 2nd polarity electrode 28.1st collector electrode 21 and the 2nd collector electrode 22 overlapped in most of region.The 1st polarity electrode 27 and the 2nd polarity electrode 28 is had at the partial configuration of both overlaps.
Roughly the same region is configured at when the 1st polarity electrode 27 and the 2nd polarity electrode 28 top view.The region being configured with the 1st polarity electrode 27 and the 2nd polarity electrode 28 is called " electrode zone " 29.By more more outward than electrode zone 29 and be called " fringe region " 30 than the region more in the inner part, periphery of electric power storage container 10.
1st collector electrode 21 and the 2nd collector electrode 22 have from electrode zone 29 (Figure 1A, upward and down) extension 21A, 22A of extending in the mutually opposite directions.The outer peripheral lines of separator 25 is positioned at more more outward than the region of the 1st collector electrode 21 and the 2nd collector electrode 22 overlap.Extension 21A, 22A export to more more outward than the periphery of separator 25.
1st current collection pole piece 12 and the 2nd current collection pole piece 13 intersect with the limit be parallel to each other of electric power storage container 10 from the inner side of electric power storage container 10 respectively and lead to the outside of electric power storage container 10.1st current collection pole piece 12 and the 2nd current collection pole piece 13 are overlapping with the extension 21A of the 1st collector electrode 21 and the extension 22A of the 2nd collector electrode 22 respectively, and are electrically connected on the 1st collector electrode 21 and the 2nd collector electrode 22.1st current collection pole piece 12 and the 2nd current collection pole piece 13 play a role as the electrode of mutual antipolarity.
Steam vent 14 is formed at the fringe region 30 of electric power storage container 10.Steam vent 14 is such as configured at the position overlapping with the extension 21A of the 1st collector electrode 21.Exhaust structure thing 15 is configured at the position overlapping with steam vent 14.
Sectional view in the single dotted broken line 1B-1B of Figure 1A shown in Figure 1B.Electric power storage container 10 comprises 2 aluminium laminated films 10A, 10B.Aluminium laminated film 10A, 10B clamp electric power storage duplexer 11, and seal electric power storage duplexer 11.The laminated film 10B general planar of one side, the laminated film 10A of the opposing party reflects the shape of electric power storage duplexer 11 and is out of shape.Fringe region 30 is thinner than electrode zone 29.In Figure 1B, eliminate the record of separator 25, the 1st polarity electrode 27 and the 2nd polarity electrode 28.
The sectional view of electric power storage duplexer 11 shown in Fig. 1 C.Be formed with the 1st polarity electrode 27 on the two sides of the 1st collector electrode 21, be formed with the 2nd polarity electrode 28 on the two sides of the 2nd collector electrode 22.1st collector electrode 21 and the 2nd collector electrode 22 such as use aluminium foil.1st polarity electrode 27 such as can by by comprise mixing have the slurry of the adhesive of activated carbon granule coat the surface of the 1st collector electrode 21 after heat and make it fixedly be formed.2nd polarity electrode 28 also can be formed by identical method.
The 1st collector electrode 21 being formed with the 1st polarity electrode 27 on two sides and the 2nd collector electrode 22 being formed with the 2nd polarity electrode 28 on two sides alternately laminated.Separator 25 is configured with between the 1st polarity electrode 27 and the 2nd polarity electrode 28.Separator 25 such as uses cellulose paper.Electrolyte is impregnated with in this cellulose paper.The solvent of electrolyte such as uses polarity organic solvent, such as propylene carbonate, ethylene carbonate, methyl ethyl carbonate etc.As electrolyte (supporting electrolyte), use quaternary ammonium salt, such as SBPBF
4(volution bipyrrolidine tetrafluoroborate (spirobipyrrolidinium tetrafluoroborate)).Separator 25 prevents the short circuit between the 1st polarity electrode 27 and the 2nd polarity electrode 28 and the short circuit between the 1st collector electrode 21 and the 2nd collector electrode 22.
Get back to Figure 1B and proceed explanation.The extension 21A of overlapping multiple 1st collector electrode 21, supersonic welding is connected to the 1st current collection pole piece 12.The extension 22A of overlapping multiple 2nd collector electrode 22, supersonic welding is connected to the 2nd current collection pole piece 13.1st current collection pole piece 12 and the 2nd current collection pole piece 13 such as use aluminium sheet.The 2nd collector electrode 22, the 1st polarity electrode 27, the 2nd polarity electrode 28 and separator 25 is not configured with in the region of the extension 21A being laminated with the 1st collector electrode 21.Therefore, the part being laminated with extension 21A is thinner than electrode zone 29.Equally, the part being laminated with the extension 22A of the 2nd collector electrode 22 is also thinner than electrode zone 29.
Between 1st current collection pole piece 12 and the 2nd current collection pole piece 13 break-through laminated film 10A and laminated film 10B, and export to the outside of electric power storage container 10.1st current collection pole piece 12 and the 2nd current collection pole piece 13 are deriving position heat fused in laminated film 10A and laminated film 10B.In addition, can at the 1st current collection pole piece 12 and between laminated film 10A, 10B and the 2nd current collection pole piece 13 and clamp sheet film between laminated film 10A, 10B.Sheet film improves sealing intensity.
Exhaust structure thing 15 is configured with between the extension 21A and laminated film 10A of the 1st collector electrode 21.Exhaust structure thing 15 is configured to block steam vent 14, and heat fused is in laminated film 10A.Exhaust structure thing 15 externally discharges the gas in electric power storage container 10, but forbids that moisture etc. is immersed in electric power storage container 10 from outside.
Vacuum exhaust is carried out by electric power storage container 10.Therefore, laminated film 10A, 10B is out of shape according to the profile of electric power storage duplexer 11 and exhaust structure thing 15 by atmospheric pressure.
Sectional view in the single dotted broken line 1D-1D of Figure 1A shown in Fig. 1 D.The stepped construction of electric power storage duplexer 11 is identical with the structure shown in Figure 1B and Fig. 1 C.In the region more more outward than electric power storage duplexer 11, the mutual heat fused of laminated film 10A and 10B.In the cross section shown in Fig. 1 D, the 1st collector electrode 21 and the 2nd collector electrode 22 are not provided with extension.That is, relatively thin part is not provided with in the both sides of electric power storage duplexer 11.Therefore, in the cross section shown in Fig. 1 D, the inclination covered in the cross section shown in rake ratio Figure 1B of the laminated film 10A of the end face of electric power storage duplexer 11 is more precipitous.
Based on the sectional view of the power storage module of embodiment 1 shown in Fig. 2 A.For the ease of understanding, definition xyz orthogonal coordinate system.
Multiple electricity accumulating units 35 of tabular and heat transfer plate 36 are gone up alternately laminated at its thickness direction (z direction).Each electricity accumulating unit 35 has the structure identical with the structure shown in Figure 1A ~ Fig. 1 D.Outermost electricity accumulating unit 35 is stained with pressing plate 42,43 respectively.Multiple pull bar 41 is through to the pressing plate 43 of the opposing party from the pressing plate 42 of a side, electricity accumulating unit 35 and heat transfer plate 36 is applied to the compression stress in stacked direction (z direction).
Electricity accumulating unit 35 is held between pressing plate 42,43 by the compression of additional stacked direction.Pressing plate 42,43 and pull bar 41 are configured for the maintaining body 40 keeping electricity accumulating unit 35.In addition, heat transfer plate 36 can also be thought of as a structure important document of maintaining body 40.
In order to make multiple electricity accumulating unit 35 be connected in series, being connected to each other between the 1st current collection pole piece 12 of the electricity accumulating unit 35 adjoined each other, being connected to each other between the 2nd current collection pole piece 13.When observing from the center of electrode zone 29, all electricity accumulating units 35 are configured at the posture of the positive direction of x-axis with the 1st current collection pole piece 12, and the posture being namely configured at the positive direction of x-axis with steam vent 14 (Figure 1A) is kept.
Heat transfer plate 36 such as uses aluminium, and pull bar 41 and pressing plate 42,43 such as use stainless steel.About x direction, be configured with a pair wallboard 44,45 in the both sides of maintaining body 40.Each wallboard 44 and 45 is secured by bolts in pressing plate 42,43.
The sectional view of the single dotted broken line 2B-2B of Fig. 2 A shown in Fig. 2 B.Sectional view in the single dotted broken line 2A-2A of Fig. 2 B is equivalent to Fig. 2 A.The flat shape of electricity accumulating unit 35 and heat transfer plate 36 is roughly rectangle.The 1st current collection pole piece 12 and the 2nd current collection pole piece 13 is derived from the limit (Fig. 2 B, top and below) being arranged in mutual opposite side of electricity accumulating unit 35.During top view, heat transfer plate 36 projects to more more outward than the limit of electricity accumulating unit 35.
About y direction, be configured with a pair wallboard 46,47 in the both sides of heat transfer plate 36.The end contact of wallboard 46,47 and heat transfer plate 36.Thus, heat transfer plate 36 and wallboard 46,47 thermal.Each wallboard 46 and 47 is bolted in wallboard 44 and 45.The stream 48 for making coolant flow through is formed in the inside of wallboard 46 and 47.
Even if do not insert heat transfer plate 36 when also can obtain sufficient cooling performance between electricity accumulating unit 35, heat transfer plate 36 can be configured and only stacked multiple electricity accumulating unit 35.
In Fig. 3 A, the sectional view of maintaining body 40 and electricity accumulating unit 35 is conceived to the shape of pressing plate 42,43 and illustrates.Between pressing plate 42 and 43, maintain multiple electricity accumulating unit 35.In Fig. 3 A, the structure not being inserted with heat transfer plate 36 (Fig. 2 A) is shown.When observing from electrode zone 29, be configured with steam vent 14 in the positive direction of x-axis.
The surface (inner surface) opposed with electricity accumulating unit 35 of pressing plate 42 becomes the curved surface of convex.In xy face, this inner surface has the highest at the center of electricity accumulating unit 35 and towards the shape of periphery slowly step-down.Such as, the curved surface of this convex is parallel to z-axis and the surfaces of revolution being pivot by the imaginary line at the center of electrode zone 29.The inner surface of the pressing plate 43 of the opposing party is plane.If the thickness of the part corresponding with the position of steam vent 14 is set to t1, and the thickness of the central part of pressing plate 42 is set to t2, then t1 < t2 sets up.
Inner surface due to pressing plate 42 becomes the curved surface of convex, and therefore face pressure increases from the periphery of the electrode zone 29 of electricity accumulating unit 35 towards center.Electricity accumulating unit 35 is according to by additional face compressive strain.Specifically, pressure higher region in face becomes and is thinner than the lower region of face pressure.The difference of height of convex surface is set to outermost perimembranous at electrode zone 29 also to the degree of the additional compression stress of electricity accumulating unit 35.
In region between the center of steam vent 14 and electrode zone 29, face pressure slowly increases from steam vent 14 towards the center of electrode zone 29.Therefore, the gas that this region of transmitting in electricity accumulating unit 35 towards steam vent 14 produces.The center being pressed in electrode zone 29 due to face is maximum, and the gas that other regions therefore in electricity accumulating unit 35 produce transmits from electrode zone 29 towards fringe region 30.The gas be accumulated in fringe region 30 can not affect the storage performance of electricity accumulating unit 35.Therefore, it is possible to the storage performance suppressing the gas because producing in electricity accumulating unit 35 and cause declines.
In addition, be transmitted in the gas edge region 30 transferring to fringe region 30 and arrive to steam vent 14.Therefore, it is possible to the gas in electricity accumulating unit 35 is expelled to outside effectively.
In Fig. 3 A, the inner surface showing pressing plate 42 is with the situation of the imaginary line parallel with the z-axis surfaces of revolution that is pivot, but also can be set to the convex cylinder with the bus parallel with y-axis, the such as face of cylinder.Now, face is pressed in y-axis direction constant.In x-axis direction, face pressure is slowly step-down from the center of electrode zone 29 towards limit.Therefore, the gas produced at electrode zone 29 towards the positive direction of x-axis or negative direction transmission, and arrives fringe region 30.
Based on the sectional view of the power storage module of embodiment 2 shown in Fig. 3 B.In Fig. 3 A, the inner surface of the pressing plate 42 of a side is set to the curved surface of convex, in the example of Fig. 3 B, the inner surface of the pressing plate 43 of the opposing party is also set to the curved surface of convex.The surfaces of revolution that it is pivot that the inner surface of pressing plate 43 can be set as with the axle parallel with z-axis, also can be set as the cylinder with the bus parallel with y-axis.
In example 2, also can realize the face identical with embodiment 1 to press and distribute.Therefore, it is possible to the gas transport produced in electricity accumulating unit 35 is also expelled to outside from steam vent 14 effectively to fringe region 30.
Based on the sectional view of the power storage module of embodiment 3 shown in Fig. 3 C.Buffer board 49 is inserted with between pressing plate 42 and electricity accumulating unit 35.Protuberance 42A is formed on the surface in the inner part of pressing plate 42.In xy face, protuberance 42A is overlapping with the portion inside (region in the inner part away from outer peripheral lines) of electrode zone 29, but can not be overlapping with near the periphery of electrode zone 29.
If by the additional compression stress of pressing plate 42,43, then buffer board 49 according to the distortion of electricity accumulating unit 35 strain.The additional compression stress of recuperability of buffer board 49 is passed through at the periphery near zone of electrode zone 29.Therefore, face pressure is from the center of electrode zone 29 towards limit step-down.Therefore, it is possible to the gas transport produced in electricity accumulating unit 35 is also expelled to outside from steam vent 14 effectively to fringe region 30.
Based on the sectional view of the power storage module of embodiment 4 shown in Fig. 4 A.The immediate vicinity of pressing plate 42 is tabular, around it, while to tilt away from the mode of electricity accumulating unit 35.Under the state of not additional compression stress, the flat panel like portion of the immediate vicinity of pressing plate 42 contacts with electricity accumulating unit 35.Gap is produced between the part tilted and electricity accumulating unit 35.The thickness in this gap is thickening towards limit from center.
To be positioned at the imaginary plane more outward and more vertical with z-axis than the inner surface of pressing plate 42 for benchmark, the height of the inner surface of the pressing plate 42 of the part corresponding with steam vent 14 is set to t1, and when the height of the inner surface of the central part of pressing plate 42 is set to t2, t1 < t2 sets up.
If additional compression stress, then electricity accumulating unit 35 is out of shape, thus the part tilted also contacts with electricity accumulating unit 35.Thus, face pressure declines from the center of electrode zone 29 towards limit.Therefore, it is possible to the gas transport produced in electricity accumulating unit 35 is also expelled to outside from steam vent 14 effectively to fringe region 30.
Based on the sectional view of the power storage module of embodiment 5 shown in Fig. 4 B.Pressing plate 42 has with the bending shape of the mode towards electricity accumulating unit 35 projection.Such as, vertical with y-axis cross section is V shape.In addition, the shape cutting out a part from the side of the cylinder centered by y-axis can be set to.
To be positioned at the imaginary plane more outward and more vertical with z-axis than the inner surface of pressing plate 42 for benchmark, the height of the inner surface of the pressing plate 42 of the part corresponding with steam vent 14 is set to t1, and when the height of the inner surface of the central part of pressing plate 42 is set to t2, t1 < t2 sets up.
If by the power in the additional direction making pressing plate 42 and 43 close of pull bar 41, then pressing plate 42 strain.By the recuperability of pressing plate 42, to the additional compression stress of electricity accumulating unit 35.About x-axis direction, face pressure slowly declines from the center of electrode zone 29 towards limit.Therefore, it is possible to the gas transport produced in electricity accumulating unit 35 is also expelled to outside from steam vent 14 effectively to fringe region 30.In addition, the rotary body that can be set to the axle parallel with z-axis by pressing plate 42 be pivot.
In embodiment 1 ~ embodiment 5 shown in Fig. 3 A ~ Fig. 4 B, the inner surface of pressing plate 42 is about parallel with yz face and roughly symmetric by the plane at the center of electrode zone 29.Therefore, the face pressure distribution in x-axis direction is roughly symmetrical about the center of electrode zone 29.Thus, even if apply to impact or continuation vibration to power storage module, also not easily electricity accumulating unit 35 departing to the direction vertical with z-axis is produced.
Based on the sectional view of the power storage module of embodiment 6 shown in Fig. 5 A.In embodiment 6, under the state of not additional compression stress, the gap between pressing plate 42 and electricity accumulating unit 35 broadens towards the positive direction of x-axis.That is, gap is expanded along with near steam vent 14.The outer surface of pressing plate 42 is the plane vertical with z-axis.In embodiment 6, in electrode zone 29, face pressure near steam vent 14 region towards away from region increase.
The thickness of the pressing plate 42 of the part corresponding with steam vent 14 is set to t1, and the thickness of the central part of pressing plate 42 is set to t2.In addition, in xy face, the thickness linked away from the pressing plate 42 of the position of the intersection point of steam vent 14 in the intersection point on the position of steam vent 14 and the straight line at the center of pressing plate 42 and the limit of electrode zone 29 is set to t3.Now, t1 < t2 < t3 sets up.
If additional compression stress, then electricity accumulating unit 35 is out of shape, and pressing plate 42 contacts with the whole region of electrode zone 29.Now, the face pressure in x-axis direction slowly increases from steam vent 14 towards (negative direction towards x-axis) in electrode zone 29.
In embodiment shown in Fig. 3 A, the gas that the minus side at the center than electrode zone 29 more by x-axis produces transmits to the direction away from steam vent 14, arrives fringe region 30.On the other hand, in the embodiment 6 shown in Fig. 5 A, the gas that the minus side at the center than electrode zone 29 more by x-axis produces also transmits near the direction of steam vent 14.Therefore, it is possible to more effectively discharge the gas produced in electricity accumulating unit 35 from steam vent 14.
Based on the sectional view of the power storage module of embodiment 7 shown in Fig. 5 B.The shape of the inner surface of pressing plate 42 is roughly the same with the shape of the embodiment 6 shown in Fig. 5 A.In embodiment 6, the outer surface of pressing plate 42 is plane, but in embodiment 7, the outer surface of pressing plate 42 also towards interior lateral bend, the thickness constant of pressing plate 42.
To be positioned at the imaginary plane more outward and more vertical with z-axis than the inner surface of pressing plate 42 for benchmark, the height of the inner surface of the pressing plate 42 of the part corresponding with steam vent 14 is set to t1, and the height of the inner surface of the central part of pressing plate 42 is set to t2.In addition, in xy face, the height linked away from the inner surface of the pressing plate 42 of the position of the intersection point of steam vent 14 in the intersection point on the position of steam vent 14 and the straight line at the center of pressing plate 42 and the limit of electrode zone 29 is set to t3.Now, t1 < t2 < t3 sets up.
If to the additional compression stress of electricity accumulating unit 35, then pressing plate 42 also strain, and in electricity accumulating unit 35, produce face pressure by its recuperability.In embodiment 7, also can obtain the face identical with embodiment 6 and press and distribute.
Based on the sectional view of the power storage module of embodiment 8 shown in Fig. 5 C.In embodiment 8, it is dull and stereotyped uniformly that pressing plate 42,43 is thickness.The fastening force based on the pull bar 41 of the position away from steam vent 14 is made to be better than the fastening force of the pull bar 41 based on the position near steam vent 14.In Fig. 5 C, show the state dividing gap between electrode zone 29 and pressing plate 42, if but additional compression stress, then the whole region of electrode zone 29 contacts with pressing plate 42.
Identical with the situation of Fig. 5 B, if define height t 1, t2, t3, then, in embodiment 8, t1 < t2 < t3 also sets up.In embodiment 8, also can obtain the face identical with embodiment 6 and press and distribute.
Based on the sectional view of the power storage module of embodiment 9 shown in Fig. 6.In embodiment 9, between electricity accumulating unit 35, be configured with heat transfer plate 36.The cross section parallel with xz face of heat transfer plate 36 is thicker and slowly thinning towards two ends at central portion.In region between the center of electrode zone 29 and steam vent 14, slowly thinning towards steam vent 14 from the center of electrode zone 29.The inner surface of pressing plate 42,43 is plane.If additional compression stress, then electricity accumulating unit 35 is out of shape, and the whole region of electrode zone 29 contacts with heat transfer plate 36.In the region that heat transfer plate 36 is relatively thick, face pressure increases relatively.Therefore, about x-axis direction, the center that face is pressed in electrode zone 29 is the highest, and slowly step-down is pressed in face towards limit.In region between the center of steam vent 14 and electrode zone 29, face pressure slowly increases in electrode zone 29 from steam vent 14.Thus, identical with the embodiment shown in Fig. 3 A, effectively can discharge from electrode zone 29 gas produced in electricity accumulating unit 35.
The vertical view of the electricity accumulating unit 35 used in the power storage module based on embodiment 10 shown in Fig. 7.In the following description, the discrepancy with the electricity accumulating unit of the embodiment 1 shown in Figure 1A is conceived to, for identical incomplete structure explanation.
In embodiment 1, the 1st current collection pole piece 12 and the 2nd current collection pole piece 13 are drawn from the limit being positioned at mutual opposite side of electric power storage container 10.On the other hand, in embodiment 10, the 1st current collection pole piece 12 and the 2nd current collection pole piece 13 are drawn from the diverse location of the same edge of electric power storage container 10.The stepped construction of the 1st collector electrode 21, the 2nd collector electrode 22, the 1st polarity electrode 27, the 2nd polarity electrode 28 and separator 25 is identical with the stepped construction of embodiment 1.
The extension 21A of the 1st the collector electrode 21 and extension 22A of the 2nd collector electrode 22 coordinates the configuration of the 1st current collection pole piece 12 and the 2nd current collection pole piece 13, extends outward from the diverse location of the same edge of electrode zone 29.
Steam vent 14 and exhaust structure thing 15 are configured in the fringe region 30 corresponding with the limit of drawing the 1st current collection pole piece 12 and the 2nd current collection pole piece 13.
Based on the sectional view of the power storage module of embodiment 10 shown in Fig. 8 A.For the ease of understanding, definition xyz orthogonal coordinate system.
Multiple electricity accumulating unit 35 is laminated with to z-axis direction.When observing from the center of each electricity accumulating unit 35, the posture that electricity accumulating unit 35 is positioned at equidirectional (positive direction of x-axis) with steam vent 14 (Fig. 7) is arranged.The shape (snakelike shape) that Heat transmission plate 60 is folded into, flat panel like portion and sweep are alternately continuously.When with the point of view parallel with x-axis, be namely configured with Heat transmission plate 60 with the posture of the shape being to the upright projection picture in yz face.The flat panel like portion of Heat transmission plate 60 is configured between electricity accumulating unit 35, the flat panel like portion of the Heat transmission plate 60 that is alternately arranged to z-axis direction and electricity accumulating unit 35.The flat panel like portion of the outermost configuration Heat transmission plate 60 in z-axis direction.
Pressing plate 51 and 52 is configured at the two ends of the flat panel like portion of Heat transmission plate 60 and the duplexer of electricity accumulating unit 35, and is close to Heat transmission plate 60.The pressing plate 52 of one side there is continuously side plate 53,54.Pressing plate 52 and side plate 53,54 such as bend 1 metallic plate and are formed.Side plate 53,54 is configured at the side (minus side of y-axis and positive side) of Heat transmission plate 60 and electricity accumulating unit 35.The pressing plate 51 of the opposing party is fastened onto side plate 53,54 by the securing member 57 be made up of screw bolt and nut, thus to the flat panel like portion of Heat transmission plate 60 and the additional compression stress of duplexer of electricity accumulating unit 35.
The stream 61 for making coolant flow through is formed in Heat transmission plate 60.The shape of the Heat transmission plate 60 of the shape that stream 61 is matched with and sinuous while, extend to z-axis direction.Be linked with coolant ingress pipe 62 in the end of a side of stream 61, be linked with coolant discharge pipe 63 in the end of the opposing party.Coolant is directed into coolant ingress pipe 62 from coolant feedway 65.The coolant being directed into coolant ingress pipe 62, via stream 61, coolant discharge pipe 63, is recovered to coolant feedway 65.
Sectional view in the single dotted broken line 8B-8B of Fig. 8 A shown in Fig. 8 B.Sectional view in the single dotted broken line 8A-8A of Fig. 8 B is equivalent to Fig. 8 A.In order to make multiple electricity accumulating unit 35 be connected in series, and be connected with the 1st current collection pole piece 12 and the 2nd current collection pole piece 13.When observing from the center of electricity accumulating unit 35, the positive direction to x-axis is configured with steam vent 14.Multiple stream 61 is formed in the inside of Heat transmission plate 60.Separated by next door between stream 61.Owing to being formed with next door, so during compression stress to the flat panel like portion additional thickness direction of Heat transmission plate 61, flat panel like portion can not collapse under pressure and maintain its shape.The heat produced in electricity accumulating unit 35 is externally released by the coolant flow through in stream 60.
Base plate 55 and top board 56 together form the basket of parallelepiped structure with side plate 53,54 (Fig. 8 A) and pressing plate 51,52.Heat transmission plate 60 contacts with base plate 55.The inner surface of pressing plate 51 becomes the curved surface of convex identically with the pressing plate 42 of the embodiment 1 shown in Fig. 3 A.Therefore, about x-axis direction, face is pressed in core and becomes large, and from center towards limit, face pressure diminishes.Therefore, it is possible to the gas produced in electricity accumulating unit 35 is transmitted from electrode zone 29 towards fringe region 30 and is effectively expelled to outside from steam vent 14.
The shape of pressing plate 51 can be set to the shape identical with the pressing plate 42 shown in Fig. 3 C, also buffer board 49 can be inserted between pressing plate 51 and Heat transmission plate 60.Further, also the shape of pressing plate 51 can be set to the shape identical with the pressing plate 42 shown in Fig. 4 A, Fig. 4 B, Fig. 5 A or Fig. 5 B.Identical with the embodiment shown in Fig. 5 C, in fig. 8 a, face pressure distribution can be adjusted by the fastening force changed in the direction of the x axis based on securing member 57.
The stereogram of the Heat transmission plate 60 before folding shown in Fig. 9 A.Heat transmission plate 60 is rectangular plate-shaped member, is formed with the multiple streams 61 extended to length direction therein.Each stream 61 arrives the end face to opposition side from orthogonal with the length direction of Heat transmission plate 60 1 end face.Heat transmission plate 60 such as uses the metals such as aluminium.Heat transmission plate 60 easily can be made by extrusion molding.
The stereogram of the Heat transmission plate 60 after folding shown in Fig. 9 B.Tabular Heat transmission plate 60 plastic deformation shown in Fig. 9 A, in serpentine shape.By folded heat transmission board 60, each stream 61 also wriggles.Like this, by folding extrusion molding article, can with low-cost production's Heat transmission plate 60.
The electricity accumulating unit 35 used in the power storage module based on embodiment 11 shown in Figure 10 A and the sectional view of Heat transmission plate 60.In the following description, the discrepancy with the embodiment 10 shown in Fig. 8 B is conceived to, for identical incomplete structure explanation.
In embodiment 11, the thickness of Heat transmission plate 60 changes in the direction of the x axis, and at core, relatively Hou Qiecong center is slowly thinning towards limit.In embodiment 10, the inner surface of the pressing plate 51 shown in Fig. 8 B is the curved surface of convex, but in embodiment 11, this surface is plane.Face pressure, by the thickness distribution of Heat transmission plate 60, increases at immediate vicinity relatively about x-axis direction, the slowly step-down from center towards limit.Therefore, it is possible to the gas produced in electricity accumulating unit 35 is expelled to outside effectively.
The electricity accumulating unit 35 used in the power storage module based on embodiment 12 shown in Figure 10 B and the sectional view of Heat transmission plate 60.In the following description, the discrepancy with the embodiment 11 shown in Figure 10 A is conceived to, for identical incomplete structure explanation.
In embodiment 12, the constant thickness of Heat transmission plate 60.The size in the x-axis direction of multiple stream 61 is not identical, and about x-axis direction, the size being configured at the x-axis direction of the stream 61 of central authorities is relatively little, and near the stream 61 on limit, the size in x-axis direction is larger.Separate the constant thickness in the next door of stream 61.Therefore, in the cross section of Heat transmission plate 60, the ratio shared by stream 61 increases towards limit from center in x-axis direction.
In the part that the ratio shared by stream 61 is higher, compared with the part that the ratio shared by stream 61 is lower, the rigidity step-down of Heat transmission plate 60.Therefore, when additional compression stress, Bian Bi center is more easily out of shape.Face pressure applied to electricity accumulating unit 35 diminishes towards limit from center about x-axis direction.Thus, identical with the embodiment 11 shown in Figure 10 A, the gas in electricity accumulating unit 35 can be expelled to outside effectively.
The electricity accumulating unit 35 used in the power storage module based on embodiment 13 shown in Figure 10 C and the sectional view of Heat transmission plate 60.In the following description, the discrepancy with the embodiment 12 shown in Figure 10 B is conceived to, for identical incomplete structure explanation.In embodiment 13, the x-axis direction of multiple stream 61 measure-alike.The thickness separating the next door of stream 61 is not identical, and the next door being positioned at center in x-axis direction is relatively thick, and the next door near limit is more thinning.In this case, also identical with embodiment 12, in the cross section of Heat transmission plate 60, the ratio shared by stream 61 increases towards limit from center in x-axis direction.Therefore, be pressed in x-axis direction applied to the face of electricity accumulating unit 35 to diminish from center towards limit.Thus, identical with the embodiment 12 shown in Figure 10 B, the gas in electricity accumulating unit 35 can be expelled to outside effectively.
In above-described embodiment 1 ~ embodiment 9, employ the electricity accumulating unit of drawing current collection pole piece 12,13 as shown in Figure 1A from the limit of mutual opposition side, but in embodiment 1 ~ embodiment 9, also can use the electricity accumulating unit of drawing 2 current collection pole pieces 12,13 as shown in Figure 7 from 1 limit.Further, in embodiment 10 ~ 12, employ the electricity accumulating unit 20 shown in Fig. 7, but in embodiment 10 ~ 12, also can use the electricity accumulating unit 20 shown in Figure 1A.Now, such as in the fig. 8b, the space for being connected current collection pole piece can be guaranteed between Heat transmission plate 60 with base plate 55.
In Figure 11, as the example of the work mechanism of the power storage module of having carried based at least 1 embodiment in above-described embodiment 1 ~ 13, represent the schematic top view of the hybrid earth mover based on embodiment 14.Revolving body 70 is provided with running gear 71 by floating bearing 73.Revolving body 70 is equipped with engine 74, hydraulic pump 75, revolution electro-motor 76, fuel tank 77, cooling fan 78, seat 79, power storage module 80 and motor generator 83.Engine 74 produces power by combustion fuel.Engine 74, hydraulic pump 75 and motor generator 83 carry out sending of torque mutually by torque-transmitting mechanisms 81 to be subject to.Hydraulic pump 75 is to the hydraulic cylinder supply pressure oil of swing arm 82 grade.
Motor generator 83 by the power drive of engine 74, and carries out generate electricity (generator operation).The electric power of generating is supplied to power storage module 80 and power storage module 80 of charging.Further, motor generator 83 is driven by the electric power from power storage module 80, and produces the power (auxiliary operation) being used for auxiliary engine 74.The oil of fuel tank 77 stock solution volt circuit.Cooling fan 78 suppresses the oil temperature of hydraulic circuit to rise.Operator is sitting on seat 79 and operates hybrid earth mover.
Based on the end view of the hybrid earth mover of embodiment 14 shown in Figure 12.Lower running body 71 is equipped with upper rotation 70 by floating bearing 73.Upper rotation 70 is by turning round clockwise or counterclockwise relative to lower running body 71 from the actuating force of revolution with electro-motor 76 (Figure 11).Upper rotation 70 is provided with swing arm 82.Swing arm 82 is vertically swung relative to upper rotation 70 by hydraulically powered swing arm cylinder 107.In the front end of swing arm 82, dipper 85 is installed.Dipper 85 swings relative to swing arm 82 in front-rear direction by hydraulicallying driven dipper cylinder 108.In the front end of dipper 85, scraper bowl 86 is installed.Scraper bowl 86 is vertically swung relative to dipper 85 by hydraulically powered scraper bowl cylinder 109.
Power storage module 80 is equipped on upper rotation 70 by power storage module seat 90 and damper (antihunting device) 91.Power storage module 80 uses the power storage module based on above-described embodiment 1 ~ 13.By the driven by power revolution electro-motor 76 (Figure 11) supplied from power storage module 80.The revolving body 70 into driven object is transferred to back and forth by driving revolution electro-motor 76.Further, revolution electro-motor 76 produces regenerated electric power by kinetic energy is converted to electric energy.By the regenerated electric power charging power storage module 80 produced.
Based on the block figure of the hybrid earth mover of embodiment 14 shown in Figure 13.In Figure 13, represent mechanical dynamic system with doublet, represent high-pressure and hydraulic pipeline with heavy line, represent electric power system by fine line, pilot line represented by dashed line.
The driving shaft of engine 74 is linked to the power shaft of torque-transmitting mechanisms 81.Engine 74 uses the engine being produced actuating force by the fuel except electric power, the internal combustion engines such as such as diesel motor.Engine 74 is driven all the time in the operation of work mechanism.
The driving shaft of motor generator 83 is linked to other power shafts of torque-transmitting mechanisms 81.Motor generator 83 can carry out electronic (assisting) and run the run action with generator operation both sides.Motor generator 83 such as uses magnet to imbed inner magnet baried type (IPM) motor of internal rotor.
Torque-transmitting mechanisms 81 has 2 power shafts and 1 output shaft.This output shaft is linked with the driving shaft of main pump 75.
When the load putting on engine 74 is larger, motor generator 83 carries out auxiliary operation, and the actuating force of motor generator 83 is passed to main pump 75 by torque-transmitting mechanisms 81.Thus, the load putting on engine 74 is alleviated.On the other hand, when the load putting on engine 74 is less, the actuating force of engine 74 is passed to motor generator 83 by torque-transmitting mechanisms 81, thus generator operation motor generator 83.The auxiliary operation of motor generator 83 and the switching of generator operation are undertaken by the inverter 118 being connected to motor generator 83.Inverter 118 is controlled by control device 130.
Control device 130 comprises central processing unit (CPU) 130A and internal storage 130B.CPU130A performs the drived control program be stored in internal storage 130B.Control device 130 reminds driver to note by the deterioration state etc. showing various device in display unit 135.
Main pump 75 supplies hydraulic pressure by high-pressure and hydraulic pipeline 116 to control valve 117.Control valve 117 according to the instruction from driver to hydraulic motor 101A, 101B, swing arm cylinder 107, dipper cylinder 108 and scraper bowl cylinder 109 points of equipped hydraulics.Hydraulic motor 101A and 101B drives two, the left and right crawler belt possessed in the lower running body 71 shown in Figure 12 respectively.
The input and output terminal of the electric power system of motor generator 83 is connected to storage circuit 190 by inverter 118.The operation that inverter 118 carries out motor generator 83 according to the instruction carrying out self-control device 130 controls.Storage circuit 190 is also connected with rotary motor 76 by other inverters 120.Storage circuit 190 and inverter 120 are controlled by control device 130.
During auxiliary operation motor generator 83, required electric power is supplied to motor generator 83 from storage circuit 190.During generator operation motor generator 83, the electric power generated electricity by motor generator 83 is supplied to storage circuit 190.
Revolution electro-motor 76 is exchanged driving by pulse width modulation (PWM) control signal from inverter 120, and can carry out the operation of power action and regeneration actions both sides.Revolution electro-motor 76 such as uses IPM motor.IPM motor produces larger induced electromotive force when regenerating.
Revolution is with in the power run action of electro-motor 76, and revolution electro-motor 76 makes upper rotation 70 turn round by decelerator 124.At this moment, decelerator 124 slows down rotating speed.Thus, the revolving force produced by revolution electro-motor 76 increases.Further, when regenerating operation, the rotary motion of upper rotation 70 is passed to revolution electro-motor 76 by decelerator 124, and revolution electro-motor 76 produces regenerated electric power thus.At this moment, rotating speed is accelerated on the contrary when decelerator 124 and power run.Thereby, it is possible to make the rotating speed of revolution electro-motor 76 rise.
Decomposer 122 detects the position of the direction of rotation of the rotating shaft of revolution electro-motor 76.Testing result is input into control device 130.Angle of revolution and gyratory directions is derived by before the operation of detection revolution the electro-motor 76 and position of the direction of rotation of postrun rotating shaft.
Mechanical brake 123 is linked to the rotating shaft of revolution electro-motor 76, and produces mechanical braking force.The on-position of mechanical brake 123 and disarm state refer to the control that is subject to self-control device 130 and by electro permanent magnetic switching over.
Pioneer pump 115 produces the first pilot needed for hydraulic operating system.The first pilot produced is supplied to operating means 126 by pilot line 125.Operating means 126 comprises joystick or pedal and by driver's operation.The hydraulic pressure of 1 side supplied from pilot line 125 is the hydraulic pressure of 2 sides according to the operation transformation of driver by operating means 126.The hydraulic pressure of 2 sides is passed to control valve 117 by fluid pressure line 127, and is passed to pressure sensor 129 by other fluid pressure lines 128.
The testing result of the pressure detected by pressure sensor 129 is input into control device 130.Thus, control device 130 can detect the operating conditions of lower running body 71, revolution electro-motor 76, swing arm 82, dipper 85 and scraper bowl 86.Especially, in the hybrid earth mover based on embodiment 13, revolution electro-motor 76 drives floating bearing 73.Therefore, the operational ton of the joystick with high accuracy detected for controlling revolution electro-motor 76 is wished.Control device 130 with high accuracy can detect the operational ton of this joystick by pressure sensor 129.
In addition, control device 130 can detect and all not run lower running body 71, revolution electro-motor 76, swing arm 82, dipper 85 and scraper bowl 86 and all do not carry out to the electric power supply of storage circuit 190 and the state (non-operating state) from the mandatory taking-up electric power of storage circuit 190.
The equivalent circuit diagram of storage circuit 190 shown in Figure 14.Storage circuit 190 comprises power storage module 80, transducer 200 and DC bus pipeline 210.A pair power connector end 203A, 203B of transducer 200 is connected with power storage module 80, pair of output sub-204A, 204B is connected with DC bus pipeline 210.The sub-203B of power connector end of one side and the lead-out terminal 204B of a side is grounded.Power storage module 80 uses the power storage module based on above-described embodiment 1 ~ embodiment 13.
DC bus pipeline 210 is connected to motor generator 83 and rotary motor 76 by inverter 118,120.Measured the voltage produced in DC bus pipeline 210 by voltmeter 211, measurement result is imported in control device 130.
The series circuit being interconnected the collector electrode of boosting insulated gate bipolar transistor (IGBT) 202A and the emitter of step-down IGBT202B is connected between lead-out terminal 204A and 204B.The emitter of boosting IGBT202A is grounded, and the collector electrode of step-down IGBT202B is connected on high-tension side lead-out terminal 204A.The interlinkage of boosting IGBT202A and step-down IGBT202B is connected to the sub-203A of on high-tension side power connector end by reactor 201.
So that from emitter towards the direction of collector electrode, the direction become forward is connected in parallel to diode 202a, 202b respectively on boosting IGBT202A and step-down IGBT202B.Smoothing capacitor 205 is inserted with between lead-out terminal 204A and 204B.
The voltage between terminals being connected to the voltmeter 206 pairs of power storage module 80 between sub-203A and the 203B of power connector end measures.The charging and discharging currents that series connection is inserted in ammeter 207 pairs of power storage module 80 of reactor 201 measures.The measurement result of voltage and electric current is imported in control device 130.
The temperature of Temperature Detector 136 pairs of power storage module 80 detects.The temperature data detected is imported in control device 130.Temperature Detector 136 comprises 4 thermometers such as prepared accordingly with 4 electricity accumulating units being selected from the multiple electricity accumulating units forming power storage module 80.Control device 130 such as calculates the average of 4 temperature datas obtained by 4 thermometers, and mean value is set to the temperature of power storage module 80.In addition, when judging the superheat state of capacitor, temperature the highest in the temperature shown in 4 temperature datas can be adopted as the temperature of power storage module.On the contrary, when judging the state that the temperature of power storage module too declines, temperature minimum in the temperature shown in 4 temperature datas can be adopted as the temperature of power storage module.
Control device 130 is to pulse width modulation (PWM) voltage of the additional control of gate electrode of boosting IGBT202A and step-down IGBT202B.
Below, boost action (discharging action) is described.To the additional PWM voltage of the gate electrode of boosting IGBT202A.When closing boosting IGBT202A, producing at reactor 201 and making electric current flow to the induced electromotive force in the direction of the collector electrode of boosting IGBT202A from the sub-203A of on high-tension side power connector end.This electromotive force by diode 202b by applied to DC bus pipeline 210.Thus, DC bus pipeline 210 is boosted.
Then, step-down action (charging action) is described.To the additional PWM voltage of the gate electrode of step-down IGBT202B.When closing step-down IGBT202B, produce the induced electromotive force making electric current flow to the direction of the sub-203A of on high-tension side power connector end from the emitter of step-down IGBT202B at reactor 201.By this induced electromotive force charging power storage module 80.
Because power storage module 80 employs the power storage module based on above-described embodiment 1 ~ 13, so the gas produced in the inside of electricity accumulating unit 20 can be discarded to outside effectively.
The walking of work mechanism compared with automobile on the poor macadam road in road surface is more.In addition, at work, deposit or the works of surrounding is also sometimes collided.Therefore, easily larger vibration or stronger impact are applied to the power storage module being equipped on work mechanism.Likely because this vibration and impact cause the position deviation of electricity accumulating unit.In above-described embodiment 1 ~ 13, because the face can increased applied to electricity accumulating unit is pressed, so be difficult to produce by vibrating or impact the position deviation caused.Especially because of loosening of floating bearing 73 (Figure 11, Figure 12) during upper rotation 70 vertical tremor, the vibration that power storage module 80 reason damper 91 (Figure 12) can be suppressed to absorb completely and destroying.Thereby, it is possible to guarantee current collection pole piece 12,13 stable connections.
Then, embodiment 15 is described.In embodiment 15, illustrate the excavator of at least one having and carry in embodiment 1 ~ embodiment 13 in arbitrary power storage module.
Figure 15 and Figure 16 is schematic top view based on the electric shovel as work mechanism of embodiment 15 and block figure respectively.In the following description, the discrepancy with the embodiment 14 shown in Figure 11, Figure 13 is conceived to, for identical incomplete structure explanation.
In electric shovel based on embodiment 15, be not equipped with engine 74 (Figure 11, Figure 13).Prepare the electric pressure converter 88 for charging to power storage module 80 and external power source attachment plug 87.Can be charged from external power source by external power source attachment plug 87 and electric pressure converter 88 pairs of power storage module 80.Motor generator 83 can not as generator action, but by the electric power that supplies from power storage module 80 (storage circuit 190) only as motor action.
Electric pressure converter 88 carries out the voltage transitions for making the voltage of external power source be suitable for the voltage of power storage module 80.
In embodiment 14 and embodiment 15, as the application examples to work mechanism, show hybrid earth mover and electric shovel, but the power storage module of embodiment 1 ~ 13 is except being applied to excavator, also can be applicable to other work mechanisms such as wheel loader, bull-dozer, fork truck.When power storage module based on embodiment 1 ~ 13 is applied to wheel loader or fork truck, supply electric power from power storage module to walking electro-motor.Walking electrical motor driven such as, as the running gear of driven object, wheel.Running gear, by walking electrical motor driven, makes the main part being installed on running gear advance or retreat thus.
Claims (11)
1. a power storage module, it has:
Stacked multiple electricity accumulating units; And
The maintaining body of described electricity accumulating unit keeps to the compression stress of the additional stacked direction of described electricity accumulating unit,
Each of described electricity accumulating unit have overlapping anode and negative electrode electrode zone and to surround described electrode zone during the point of view parallel with stacked direction and to be thinner than the fringe region of described electrode zone,
In the region at least partially of described electrode zone, described maintaining body presses the additional compression stress of mode increased towards inner side from the periphery of described electrode zone with face.
2. power storage module as claimed in claim 1, wherein,
Have further and be installed on described fringe region and the steam vent of discharging the gas produced in described electricity accumulating unit,
In the region at least partially of described electrode zone, described maintaining body presses the additional compression stress of mode increased towards the inner side of described electrode zone from described steam vent with face.
3. power storage module as claimed in claim 1, wherein,
Described maintaining body is to the additional compression stress of described electricity accumulating unit, so that face pressure diminishes from the center of described electrode zone towards periphery.
4. power storage module as claimed any one in claims 1 to 3, wherein,
Described maintaining body comprises a pair pressing plate being configured at the two ends of stacked described electricity accumulating unit and the compression stress of additional stacked direction,
The surface opposed with described electricity accumulating unit of the described pressing plate of at least one party is convex surface.
5. power storage module as claimed in claim 2, wherein,
Described maintaining body comprises and to be configured between described multiple electricity accumulating unit and externally to conduct the heat transfer plate of the heat produced in described electricity accumulating unit,
Described heat transfer plate is thinning towards described steam vent from the center of described electrode zone.
6. power storage module as claimed in claim 2, wherein,
In described electricity accumulating unit, when described electrode zone is observed, be laminated with described steam vent with the posture being positioned at the 1st identical direction,
Described maintaining body has:
Heat transmission plate, when with the point of view parallel with described 1st direction, wriggle extend from one end of described stacked direction towards the other end, midway is by between described electricity accumulating unit; And
The stream of coolant, be formed at described Heat transmission plate inside and from one end of described stacked direction towards the other end,
Described Heat transmission plate is thinning towards two ends from central authorities in described 1st direction.
7. power storage module as claimed in claim 2, wherein,
In described electricity accumulating unit, when described electrode zone is observed, be laminated with described steam vent with the posture being positioned at the 1st identical direction,
Described maintaining body has:
Heat transmission plate, when with the point of view parallel with described 1st direction, wriggle extend from one end of described stacked direction towards the other end, midway is by between described electricity accumulating unit; And
The stream of coolant, be formed at described Heat transmission plate inside and from one end of described stacked direction towards the other end,
In the cross section parallel with described stacked direction and described 1st direction of described Heat transmission plate, the ratio shared by described stream about described 1st direction from central authorities towards two ends step-down.
8. power storage module as claimed in claim 2, wherein,
In the inner side of described electrode zone, described maintaining body with face pressure near the region of described steam vent towards away from the additional compression stress of mode that increases of region.
9. a work mechanism, it has:
Power storage module;
Electro-motor, accepts electric power supply from described power storage module; And
Driven object, by described electrical motor driven,
Described power storage module has:
Stacked multiple electricity accumulating units; And
The maintaining body of described electricity accumulating unit keeps to the compression stress of the additional stacked direction of described electricity accumulating unit,
Each of described electricity accumulating unit have overlapping anode and negative electrode electrode zone and to surround described electrode zone during the point of view parallel with stacked direction and to be thinner than the fringe region of described electrode zone,
In the region at least partially of described electrode zone, described maintaining body presses the additional compression stress of mode increased towards inner side from the periphery of described electrode zone with face.
10. work mechanism as claimed in claim 9, wherein,
There is running gear further that make described driven object advance and retreat,
Described driven object is the revolving body being installed on described running gear pivotally,
Described electro-motor makes described revolving body turn round.
11. work mechanisms as claimed in claim 9, wherein,
Described driven object is the running gear making main part advance or retreat, and described electro-motor makes described main part advance by driving described running gear or retreats.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP277885/2010 | 2010-12-14 | ||
| JP2010277885A JP5318844B2 (en) | 2010-12-14 | 2010-12-14 | Power storage module and work machine |
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| CN102543489A CN102543489A (en) | 2012-07-04 |
| CN102543489B true CN102543489B (en) | 2015-08-26 |
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| JP6032977B2 (en) * | 2012-07-09 | 2016-11-30 | 住友重機械工業株式会社 | Hybrid excavator |
| WO2014010395A1 (en) * | 2012-07-13 | 2014-01-16 | 日産自動車株式会社 | Cell structure |
| JP6255970B2 (en) * | 2013-12-16 | 2018-01-10 | 日産自動車株式会社 | Battery system |
| US10522804B2 (en) | 2014-10-07 | 2019-12-31 | Lg Chem, Ltd. | Battery module having improved safety and operational lifespan |
| US10804580B2 (en) | 2016-03-03 | 2020-10-13 | Lg Chem, Ltd. | Cell assembly having cushion member |
| JP2020027693A (en) * | 2018-08-09 | 2020-02-20 | 株式会社デンソー | Battery pack |
| JP7371463B2 (en) | 2019-12-02 | 2023-10-31 | 株式会社デンソー | Battery temperature controller |
| CN218351513U (en) * | 2021-09-22 | 2023-01-20 | 宁德时代新能源科技股份有限公司 | Hot press device |
| CN116742251B (en) * | 2023-08-16 | 2024-01-19 | 中山澳特浦光电有限公司 | Portable energy storage device and control method thereof |
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