CN104205410A - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN104205410A CN104205410A CN201280072251.XA CN201280072251A CN104205410A CN 104205410 A CN104205410 A CN 104205410A CN 201280072251 A CN201280072251 A CN 201280072251A CN 104205410 A CN104205410 A CN 104205410A
- Authority
- CN
- China
- Prior art keywords
- component
- holding element
- battery pack
- wall construction
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims description 78
- 230000000712 assembly Effects 0.000 claims description 27
- 238000000429 assembly Methods 0.000 claims description 27
- 238000000926 separation method Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 description 17
- 238000003466 welding Methods 0.000 description 14
- 230000035882 stress Effects 0.000 description 13
- 238000009434 installation Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010338 mechanical breakdown Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/006—Vibration damping means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/579—Devices or arrangements for the interruption of current in response to shock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Battery pack with a battery cell assembly (1) comprising: - at least one first component (4 or 5) being a connector component; - at least one second component (2 or 4), wherein said first connector component (4 or 5) is in electrical contact to said second component (2 or 4); - at least one wall structure (7) which is arranged adjacent to said first connector component (4 or 5) and said second component (2 or 4); - and at least one retaining element (9) which is provided on said first connector component (4 or 5) and/or on said second component (2 or 4) and/or on said wall structure (7), wherein said retaining element (9) fixes said first connector component (4 or 5) and/or said second component (2 or 4) in its position relative to said wall structure (7).
Description
Technical field
The present invention relates to a kind of battery pack.
Background technology
Common batteries group comprises and being disposed in housing and a plurality of battery units of electric interconnection each other.
Document US 5,096,788 A disclose a kind of battery pack, and this battery pack comprises housing and a plurality of batteries in housing, and each battery has positive pole and negative pole.Flexible circuit is set, for a plurality of unit are interconnected.Battery pack comprises the bias device (biasing means) for enough contacts are provided between flexible circuit and battery terminal in addition.When battery pack is fallen or be subject to unexpected collision, beam is used for suppressing battery and moves.Battery has their adjacent positive and negative poles separately that link together via steel disc.Steel disc is normally soldered to the point of terminal, and then welding or seam to the contact of flexible circuit.Because steel disc is soldered to flexible circuit, so worry whether to exist enough power between battery terminal and contact.
Other document US 2010/0310922 A1 discloses the lithium ion battery that comprises housing and be attached to the lid of shell nozzle end.Battery pack comprises a plurality of battery units that are arranged in parallel and are included in housing.Battery pack further comprises cathode collector and anode current collector.Each current collector comprises the current-collector that is soldered to collector plate.Collector plate is soldered to the corresponding cathode shield of battery unit and anode cap.
Summary of the invention
Known battery pack has shortcoming, fall or with another collision in the situation that, power affects being welded to connect of battery pack and can damage or disconnect these and be welded to connect.In those situations, by the electrical connection that is welded to connect foundation by inoperative.
Therefore, target of the present invention is to provide a kind of battery pack of improvement, wherein, more stable or prevent mechanical breakdown or malfunctioning such as being fixedly connected with of being welded to connect.
Another one target of the present invention is to provide the rechargeable battery for garden instrument, and it is stable and reliable that this rechargeable battery is resisted unexpected collision under severe condition.
This target obtains by claim 1,21 and 22.Favourable execution mode is from dependent claims.
According to claim 1, a kind of battery pack with battery cell assemblies comprises: at least one is as the first component of connector component; At least one second component, wherein, described the first connector component and described second component electrical contact; At least one wall construction, is arranged to and is adjacent to described the first connector component and described second component; And at least one holding element, it is arranged on described the first connector component and/or on described second component and/or on described wall construction, wherein, described holding element is fixed on described the first connector component and/or described second component in its position with respect to described wall construction.
For example from the unexpected collision of falling of battery pack, can cause displacement and mechanical collision or first component and/or the impact displacement of the second component of electrical connection between the two of first component.There is first component and/or the second component of holding element as mentioned above and guaranteed extraly their relative position.The movement of the first connector component and/or second component is at least obstructed, but is still possible.
The other execution mode according to the present invention, described the first connector component is attached to described second component regularly.
Therefore, under severe condition, also guarantee the electrical connection between parts.By means of holding element, be fixedly connected with the power preventing at least partly by collision generation.
The other execution mode according to the present invention, described the first connector component is that connector bridge and described second component are battery units.
When connector bridge is used to interconnect two or more battery unit, holding element is useful especially.When the position that is connected to battery unit in connector bridging being set wherein hindering the holding element that connector bridge moves, falling or collision suddenly in the situation that, prevent from being connected damage or displacement between connector bridge and battery unit.
In interchangeable execution mode of the present invention, described the first connector component is that connecting element and described second component are connector bridges.
When connecting element by connector bridge when for example circuit board interconnects, holding element is also useful.For example, when connecting element is bent to its final position, the recoil of spring power in connecting element may cause stress or tension force, for example, and being welded to connect between connecting element and connector bridge.By means of holding element, connector bridge can prevent from being pulled and leave its position, and can reduce the stress being connected between connecting element and connector bridge.
The other execution mode according to the present invention, described wall construction is arranged to the plane extension (planar extension) that is substantially perpendicular to described the first connector component.
When holding element can interact with the wall construction perpendicular to the first connector component, can optimize maintenance function.
The other execution mode according to the present invention, described first component has at least one fixed part and described first component is fixedly connected with via at least one and is connected to described second component.
In this way, limited section is arranged on first component, this first component be shaped and/or sizing with in order to set up stable being fixedly connected with to second component.Therefore, between two parts, form stable electrical connection.
The other favourable execution mode according to the present invention, described wall construction is formed roughly U font, and described fixed part corresponding to the shape of described wall construction form and by described wall construction, surrounded at least in part.
Therefore, the fixed part of first component is applicable to, between wall construction, wherein, avoiding or at least hindering fixed part with respect to the displacement of wall construction.Have be correspondingly formed into fixed part wall construction dispose the simple and easy layout that is beneficial to holding element.
The other favourable execution mode according to the present invention, described fixed part is weld part, and described first component is welded to connect via at least one and is connected to described second component.
Be welded to connect in highly stable mode and connect first component and second component.Stably be based upon the electrical contact between parts.Further, at battery cell assemblies be welded to connect, can support or absorb at least in part the stress from mechanical shock.
The other execution mode according to the present invention, described the first connector component has at least one, is preferably the holding element of two, preferably be integrally formed to described the first connector component, especially, two holding elements are disposed in the opposition side of fixed part described in described the first connector component, wherein, each in described two holding elements abuts against on the different wall of described wall construction.
Holding element can be disposed on the wall construction adjacent with fixed part.Therefore,, in very fast installation process, can support or the portion that is fixedly clamped with enough power.In addition, the position of the first connector component can be processed prior to fixing, for example, and soldering.
In the present invention in addition in favourable execution mode, described at least one, be preferably that the holding element of two abuts against on described wall construction obliquely or described at least one, be preferably the holding element of two and arrange angularly with respect to described wall construction.
Along wall construction, hindering at least in part on the traveling priority and direction in rotary moving of the first connector component, holding element is low dip or have angle slightly.
In the other favourable execution mode of the present invention, described connector bridge is fixed, is preferably soldered to at least one connecting element, wherein, described connecting element provides the first power being carried on described connector bridge, described the first power pulls described connector bridge and departs from from its desired location, wherein, described at least one holding element clamps with force closure (force closure), and described force closure provides the second power on the rightabout of described the first power with being provided by described connecting element.
Therefore, can setover or reduce at least in part impact from the pulling force of the connector bridge of connecting element recoil of spring elastic force.Offset at least in part the tendency of connector bridge disengaging configuration.
In the other favourable execution mode of the present invention, elastic force realizes described connecting element loading stress on described being fixedly connected with, wherein, described at least one holding element clamps described wall construction with force closure and provides along the power being fixedly connected with described in the aspect effect contrary with described stress.
In this configuration, be fixedly connected with at least partly from having influence on stress relieve wherein.In the situation that battery pack is fallen, stress will cause connecting worse damage.By means of holding element, can reduce the stress in connection, this stress reduces the risk that connects damage in the situation that falling.
In the other favourable execution mode of the present invention, described fixed part is weld part, this weld part comprises at least one first weld part and at least one second weld part, wherein, described the first weld part by groove and described the second welding portion from, and wherein, at least one holding element is disposed in each of described the first weld part and described the second weld part.
Utilize this groove can offset the displacement of fixed part or the power on fixed part.With described holding element cooperation, this groove can provide extra elastic force to clamping and connect.Further, can offset the first connector component and insert in its desired location, hinder the extraction of the first connector component simultaneously or remove.
In the other favourable execution mode of the present invention, described connector bridge has H font form or T font form or L font form or I font form, wherein, described at least one, be preferably at least one end of leg that the holding element of two is disposed in described H font form or at least one end of the cross bar of described T font form or at least one end of the leg of described L font form or at least one end of described I font form, especially, wherein, at least one, be preferably on each end of each leg that the holding element of two is disposed in described H font form or on each end of the cross bar of described T font form or on each end of each leg of described L font form or on each end of described I font form.
Holding element is set on the leg of the connector bridge of given shape and allows to guarantee in an advantageous manner that connector bridge is in wherein arranging in the position being welded to connect.
In the other favourable execution mode of the present invention, described first component comprises at least one pair of holding element of shape, and this holding element forms a pair of barbed hook that the opposing resistance that described first component moves is provided.
When two holding elements act as barbed hook, realize concrete favourable configuration.Then, the clamping on wall construction connects very effective.
In the other favourable execution mode of the present invention, described connector bridge comprises at least one first holding element, and described wall construction comprises at least one second holding element, wherein, described the first holding element and described the second holding element are arranged in the opposition side of described connector bridge.
In this configuration, connector bridge can be installed between wall construction by rotary moving.Once install, owing to applying with collision or from the power of connecting element as mentioned above, holding element hinders the displacement of connector bridge.
In the other favourable execution mode of the present invention, described the first holding element is arranged with respect to described wall construction, and described the second holding element is arranged substantially vertical with described wall construction.
The effect of the first holding element that therefore, can clamping wall structure is strengthened.The second holding element can act as the keeper for second component in addition.
In the other favourable execution mode of the present invention, described wall construction comprises two holding elements on the opposition side that is positioned at described first component, wherein, described first component comprises at least one groove, this groove is divided into described first component the first fixed part and the second fixed part in the region of described holding element, make described the first fixed part and described the second fixed part can clamping (snap) to the geometry being formed by wall construction and holding element.
Clamping connects the simple and easy installation that allows connector bridge.Clamping connection can be designed to can discharge maybe and can not discharge.Further, can stably connector bridge be taken to its suitable position.
In the other favourable execution mode of the present invention, wall construction has each adjacent at least one otch (cutout) with described holding element.
Otch promotes being arranged under holding element of weld part with a kind of favourable method.
The other favourable execution mode according to the present invention, at least one battery unit is via described first component and/or via described second component, be electrically connected at least one terminal unit of described battery cell assemblies.
Terminal unit should be understood to, for interconnecting and/or control some voltage of being produced by some battery units or the device of electric current, especially, be interpreted as and comprise other electrical connection device and/or the circuit board of electrical control device.Be created in by this way electrical connection highly stable between the battery unit of battery pack and terminal unit and highly resist mechanical collision or vibrations.
The particularly advantageous battery pack that embodies inventive features in rechargeable battery that is to provide.Often use rechargeable battery, and the risk of collision is very high.Therefore, rechargeable battery need to be very firm for falling and colliding, and it is realized to use according to the battery pack of claim 1 to 20 restriction.
Further advantageously provide and there is the hand-held garden instrument comprising according to the rechargeable battery of the battery pack one of claim 1 to 20 Suo Shu.Especially, in severe operational environment, rechargeable battery must be highly stable reliable.
For other execution mode and configuration, advantage and favourable effect, with reference to above and above, further describe.
Accompanying drawing explanation
In connection with accompanying drawing, selectivity execution mode of the present invention is described now, in accompanying drawing:
Fig. 1 shows the perspective view of the battery cell assemblies in middle installation step;
Fig. 2 shows the perspective view of battery cell assemblies after connecting element 5 is installed on connector bridge 4a to 4f;
Fig. 3 shows the end view of battery cell assemblies;
Fig. 4 shows the detailed view that embodies connecting element of the present invention;
Fig. 5 shows according to the detailed sectional view of Fig. 4 connecting element;
Fig. 6 shows the end view of battery cell assemblies;
Fig. 7 shows according to the detailed view of Fig. 6 connector bridge;
Fig. 8 shows and is being arranged in installation site on cap member (cover element) and is soldered to the top view of the connecting element of connector bridge;
Fig. 9 shows the cross-sectional views B-B of connector bridge as shown in Figure 8;
Figure 10 shows and is being arranged in installation site on the cap member with heteroid holding element and is soldered to the top view of the connecting element of connector bridge;
Figure 11 shows the sectional view C-C of connector bridge as shown in Figure 10;
Figure 12 shows the sectional view D-D of connector bridge as shown in Figure 10.
Embodiment
Fig. 1 shows the perspective view of the battery cell assemblies 1 in middle installation step.Battery cell assemblies 1 comprises a plurality of battery units 2 that form the cylindrical elements combining in battery.In this embodiment, battery cell assemblies 1 comprises 20 battery units 2.The front-end and back-end of the cylindrical elements of battery unit 2 are attached to the first cap member 3a and the second cap member 3b regularly.That class battery cell assemblies 1 is to be for example used to rechargeable battery or storage battery, is specifically used for hand-held device, such as garden instrument, for example, GREEB HEDGE MACHINE, forced draft fan, chain saw, brush cutter, trimmer etc.
Each end of each battery unit 2 is electrically connected to connector bridge 4a, 4b, 4c, 4d, 4e, 4f as shown in Figure 1.In this embodiment, four battery units 2 are electrically connected to each in the connector bridge 4a, 4b, 4c, 4d of the form with H font.Two battery units 2 are electrically connected to each in connector bridge 4e, the 4f with I shape form.For example, connector bridge 4e, the 4f of I font all can be connected in series two battery units 2, and wherein, these can be connected in parallel to the battery unit 2 being connected in series.Correspondingly, can connect a plurality of battery units 2 by means of H font connector bridge 4a to 4d.According to the design of battery cell assemblies 1, can use equally difform connector bridge 4a to 4f.
Be positioned at the terminal unit of the cross side of battery cell assemblies 1, for example, arrange circuit board 6, arranging electronic parts and electrical connection on circuit board.Terminal unit is appreciated that for interconnecting and/or control by several voltage of several battery units 2 generations or the device of electric current.For by battery unit 2 and circuit board 6 electrical connections, connecting element 5 is set.Both form connector bridge 4a to 4f and connecting element 5 such as the smooth sheet metal element of being made by nickel-plated steel or copper etc.Along sweep 13, connecting element 5 can be brought in final position.
In pre-installation situation, connecting element 5 is attached to circuit board 6.After circuit board 6 being attached to the first cap member 3a and the second cap member 3b, connecting element 5 is disposed in precalculated position with respect to connector bridge 4a to 4f.
Fig. 2 shows the perspective view of battery cell assemblies 1 after connecting element 5 is mounted on connector bridge 4a to 4f.In installation process, connecting element 5 is towards the direction of connector bridge 4a to 4f along curve 13 bendings.The first end of connecting element 5 can be attached to circuit board 6 by the edge around circuit board 6 or limit engagement.The opposed end of connecting element 5 contacts with connector bridge 4a to 4f.Described contact can be only or the contact that seldom contacts with each other of plane contact or each parts surface.Particularly, connecting element 5 is connected to circuit board 6 by welding procedure, and more specifically, on circuit board 6, connecting element 5 is soldered in hole.Connecting element 5 can be supplied to assembly line as preform or prebuckling parts, is then attached to circuit board 6 and after that bending or being introduced into final shaping, for being based upon the electrical contact between connector bridge 4a to 4f and circuit board 6.
Fig. 1 and Fig. 2 show the battery cell assemblies 1 that comprises 20 battery units 2, yet following accompanying drawing shows the battery cell assemblies 1 that comprises 10 battery units 2.
Fig. 3 shows battery cell assemblies 1 end view.The layout of battery cell assemblies 1 can be different from the layout according to above-mentioned accompanying drawing.Yet, with reference to the overview of accompanying drawing, creative feature can be described.The second cap member 3b of battery cell assemblies 1 comprises that crossing connecting element 5 is connected to two battery units 2 on the connector bridge 4 of circuit board 6.It is upper that other connector bridge is disposed in the second cap member 3b, and it is all connected to circuit board 6 via connecting element 5 by two battery units 2 or single battery unit 2.Connector bridge 4 in this accompanying drawing on battery cell assemblies 1 has the form of T font or L font.
Fig. 4 shows the detailed view of the connecting element 5 contacting with connector bridge 4.The end 12 of connecting element 5 has the fixed part that forms the first weld part 5a and the second weld part 5b, and wherein, the first weld part 5a and the second weld part 5b are spaced by groove 8.In the direction towards connecting element 5 mid portions 11, the first weld part 5a and the second weld part 5b associating or combine and form mid portion 11.
Connecting element 5 is fixed to connector bridge 4 by means of being welded to connect.Can also obtain this in another useful mode and fix, for example, by means of scolder connection or by means of the screw that is applied to fixed part.In addition can be by fixed part by means of spring press to its mating section.Conventionally, part is appreciated that fixed part, at this engagement immobilising device.
In interchangeable execution mode, connecting element 5 can keep and connector bridge 4 electrical contacts by means of screw or by means of spring, connecting element 5 is pressed on connector bridge 4 or one or two in parts is pressed into corresponding battery unit 2.
In each in the first weld part 5a and the second weld part 5b, arrange that two pads are welded and fixed to connector bridge 4 by the first weld part 5a and the second weld part 5b.Only can also arrange one or more than two pads (welding point) or solder joint (welding spot).By means of groove 8, can offset the first weld part 5a of being caused by thermal stress or mechanical stress and the displacement of the second weld part 5b.
After being bent to final position, connecting element 5 is tending towards moving backward in its previous or pre-bent position.This recoil of spring elastic force existing in the material of the connecting element 5 causing by bending process causes.This causes affecting connecting element 5 and therefore affect the recoil of spring power being welded to connect between the first weld part 5a and the second weld part 5b and connector bridge 4.More specifically, the end of connecting element 12 is tending towards moving away from connector bridge 4, but is welded to connector bridge 4 and via being welded to connect, power or collision is transferred to connector bridge 4.Therefore,, on the second cap member 3b, draw or drag connector bridge 4 to depart from its position.In addition, mechanical stress or tension force are put on and is welded to connect.Connector bridge 4 is soldered to battery unit 2 and is therefore attached to regularly battery cell assemblies 1.Yet can there is and cause the deviation of the electrical connection normal condition between connector bridge 4 and the first weld part 5a and the second weld part 5b in the partial dislocation of connector bridge 4.
About Fig. 5, show the detailed sectional view of connecting element 5 and connector bridge 4, connector bridge 4 is placed on the second cap member 3b above and is surrounded side at least in part by wall construction 7.Described wall construction 7 extends the plane extension that is substantially perpendicular to connecting element 5.Pad 10 is connected to connecting element 5 connector bridge 4 and limits distance or the gap between them.
Connector bridge 4 has with the horizontal holding element with 9 form on the both sides that contact with wall construction 7.Described with the 9 attached or additional forms that can be set to connector bridge 4.Band integral body is in addition arranged to and is integrated into connector bridge 4 and tilts to extend along upward direction.Therefore, be describedly with 9 with respect to connector bridge 4, to arrange angularly.In other words, with 9, along the contrary direction of the installation direction with connector bridge 4, tilt.Therefore, described with 9 antistructures (counter-structure) that act as for recoil of spring power.In the situation that recoil of spring power affects connector bridge 4, with 9, along the direction contrary with recoil of spring force direction, keep connector bridge 4.
In interchangeable execution mode (it does not illustrate in the drawings), can also like this holding element 9 be arranged in each on the end 12 of connecting element 5 or in described the first cap member 3a and described the second cap member 3b.In the former of these configurations, connecting element 5 is held or support spring resilience force and become at least a portion of stress to alleviate or remove being welded to connect between connecting element 5 and connector bridge 4 from recoil of spring Lik-Sang.In the latter of these configurations, any in connecting element 5 or connector bridge 4 is maintained at its position by holding element 9.
Fig. 6 shows the end view of the battery cell assemblies 1 with connecting element 5 and circuit board 6.Weld part 14a, the 14b of connector bridge 4 is soldered to the corresponding weld part (invisible) of battery unit 2.Specific coupling part 15 be arranged on for make connector bridge 4,4a to 4f contact corresponding connectors element 5 connector bridge 4,4a to 4f.Some coupling parts 15 are covered by the welding portion of connecting element 5, and therefore cannot see in this view.
Fig. 7 shows the weld part 14a of connector bridge 4, the detailed view of 14b.Weld part 14a, 14b are separated from one another by groove 8.For example, the first weld part 14a is connected to anode or the positive pole of battery unit 2, and the second weld part 14b is connected to negative electrode or the negative pole of battery unit 2.In welding process, be provided with welding current, it flows into battery unit 2 and flows into another weld part 14a or 14b from battery unit 2 from a weld part 14a or 14b.Because welding current, therefore weld part 14a, 14b heating and how much welding ground are welded together.Groove 8 guarantees that welding current flows into battery unit 2 and prevents that welding current from only flowing into another weld part and not passing through battery unit part from weld part 14a, a 14b from weld part.
Wall construction 7 surrounds weld part 14a, 14b with the shape of U on three sides.Each in weld part 14a, 14b comprises holding element 9, and this holding element can be the band that is abutted to wall construction 7.
When connector bridge 4 is inserted into its position between wall construction 7, with 9, with the distance limiting to wall construction 7, weld part 14a, 14b are fixed in their position, and soldering can complete on connector bridge 4.Further, the in the situation that of collision, for example, when the battery pack of internal battery unit block 1 falls earthward, connector bridge 4 is guaranteed its position between wall construction 7.Then, the stress that impact is welded to connect between connector bridge 4 or collision and battery unit 2 can be by being with 9 absorb at least in part or reduce.Further, with 9 maintenance connector bridges 4, resist for the recoil of spring power by connecting element 5 shifts as described above.In other words, with the 9 barbed hooks that act as for connector bridge 4.
For after connector bridge 4,4a to 4f and connecting element 5 are installed to the installation and welding process of battery cell assemblies 1, the interior zone of wall construction 7 can potting resin or the electrical connection that formed by described parts with encapsulation of synthetic material.The closed-loop path (enclosure) of the electrical connection that therefore, wall construction 7 and resin or synthetic material are formed for wherein forming.
Fig. 8 shows the top view of the connecting element 5 that is soldered to connector bridge 4 on cap member 3a, 3b in installation site.Connector bridge 4 has T font form and lies low and is placed on wall construction 7 inside around connector bridge 4.
Every one end of the cross bar of the T font main body of connector bridge 4 has by groove 8 the first weld part 14a separated from one another and the second weld part 14b.Equally, the end 12 of connecting element 5 has two weld parts.Pad 10 is arranged on the end 12 of connecting element 5 and the two ends of the cross bar of the T font main body of connector bridge 4.
The end of connector bridge 4 that is connected to the end 12 of connecting element 5 is divided and can be had groove 8 and maybe can be set to not have groove.Further, the end 12 of connecting element 5 and/or the end of connector bridge 4 are divided and can be had one or more holding elements.
In this view, the end of connector bridge 4 is divided and is had two holding elements 9 that are abutted to wall construction 7, and wherein, end 12 has holding element, is also abutted to wall construction 7.Because the recoil of spring elastic force of connecting element 5, so end 12 is tending towards moving away and departs from annular wall configuration 7.Holding element moves in the interior obstruction of wall construction 7 end 12 and departs from its position.
Due to the tension force that the end 12 via being welded to connect by connecting element 5 applies, the end of connector bridge 4 is pulled away from its position in wall construction 7.Holding element 9 hinders or offsets this and move.
The end of the cross bar of the connector bridge 5 of T font all has groove 8 and weld part 14a, 14b.As the weld part 14b that points to the weld part of connecting element 5, there is the holding element 9c that is abutted to wall construction 7.As the weld part 14a that avoids the weld part of connecting element 5, by the holding element 9 that is arranged on wall construction 7 and itself is for example integrally formed to wall construction 7, remain on its position.
For example, two holding elements 9 can be arranged on for keeping the wall construction 7 of weld part 14a, the 14b of connector bridge 4, yet at the opposition side of weld part 14a, 14b, holding element 9c is integrally formed to connector bridge 4.
Fig. 9 shows the cross-sectional views B-B of connector bridge 4 as shown in Figure 8.Weld part 14b comprises the holding element 9c of the form of the band to tilt with respect to wall construction 7.In weld part 14a mono-side, wall construction 7 comprises the holding element 9 of projection form.
Two weld part 14a, 14b are via pad 10 contact battery units 2 and partly away from battery unit 2.In the situation that power is applied to connector bridge 4 according to the connecting element 5 of configuration as shown in Figure 8, weld part 14a, 14b stand certain revolving force or torque.In this case, holding element 9c works along the direction contrary with this revolving force, and therefore connector bridge 4 is maintained in position.
For mounted connector bridge 4, connector bridge 4 is placed in wall construction 7, first utilizes its weld part 14a mobile between battery unit 2 and holding element 9.After this, connector bridge rotates between wall construction, and holding element 9c is started and wall construction 7 joints and connector bridge and battery unit 2 positioned parallel.
The connector bridge 4 that Figure 10 shows the holding element 9a to 9d with different configurations is soldered to the top view of connecting element 5.Connecting element 5 to the connection of connector bridge 4 is configured to be similar to connection as previously shown.Yet wall construction 7 comprises four holding element 9d that are integrally formed to wherein.Each holding element 9d is arranged for and keeps or support weld part 14a, a 14b.
Figure 11 shows the sectional view C-C of connector bridge 4 as shown in Figure 10.In this configuration, wall construction 7 has two holding element 9d that are formed on wall construction opposition side.In each maintenance in holding element 9d or the 14a of supporting welding portion, 14b one.
In interchangeable execution mode, for example the holding element 9d of timber (rib) can be arranged on wall construction 7, and wherein, for example the holding element 9a of band can be arranged on connecting element 5 and/or connector bridge 4.Holding element 9a on connecting element 5 and/or connector bridge 4 can on wall construction 7, be connected to holding element 9d below.In this configuration, the holding element on wall construction 79 can or remain on connecting element 5 and/or on connector bridge 4 by holding element 9a to rear support.
Figure 12 shows the sectional view D-D of connector bridge 4 as shown in Figure 10.Or in this configuration, two holding elements 9 are formed to the opposition side of wall construction 7.Yet otch 16 is arranged between holding element 9d and battery unit 2.In two kinds of configurations, in order to install, connector bridge 4 can clamping to the geometry of wall construction 7, form holding element 9d to get at weld part 14a, the 14b that can be pressed together due to the groove 8 being formed between them.Therefore the clamping that, utilizes wall construction 7 to set up for connector bridge 4 connects.
Conventionally, can be advantageously provided holding element 9,9a, 9c, 9d in the applicable mode of configuration of the battery cell assemblies 1 with expectation.Particularly, holding element 9,9a, 9c, 9d can independent or a plurality of being arranged on connector bridge 4,4a, 4b, 4c, 4d, 4e, 4f, and particularly, on I font, H font, L font or T font connector bridge, on connecting element 5 or on wall construction 7.
List of reference characters
1 battery cell assemblies
2 battery units
3a the first cap member
3b the second cap member
4,4a, 4b, 4c, 4d, 4E, 4f connector bridge
5 connecting elements
5a the first weld part
5b the second weld part
6 circuit boards
7 wall constructions
8 grooves
9,9a, 9c, 9d holding element
10 pads
The pars intermedia of 11 connecting elements
The end of 12 connecting elements
13 sweeps
The first weld part of 14a connector bridge
The second weld part of 14b connector bridge
15 coupling parts
16 otch
Claims (22)
1. a battery pack with battery cell assemblies (1), comprising:
-as at least one first component (4 or 5) of connector component;
-at least one second component (2 or 4), wherein, described the first connector component (4 or 5) and described second component (2 or 4) electrical contact;
-at least one wall construction (7), described wall construction is arranged to and is adjacent to described the first connector component (4 or 5) and described second component (2 or 4);
-and at least one holding element (9), described holding element is arranged on described the first connector component (4 or 5) and/or on described second component (2 or 4) and/or on described wall construction (7), wherein, described holding element (9) is fixed on the position of described holding element by described the first connector component (4 or 5) and/or described second component (2 or 4) with respect to described wall construction (7).
2. battery pack according to claim 1, is characterized in that, described first component (4 or 5) is attached to described second component (2 or 4) regularly.
3. battery pack according to claim 1 and 2, is characterized in that, described first component is that connector bridge (4,4a, 4b, 4c, 4d, 4e, 4f) and described second component are battery unit (2).
4. battery pack according to claim 1 and 2, is characterized in that, described first component is that connecting element (5) and described second component are connector bridge (4,4a, 4b, 4c, 4d, 4e, 4f).
5. according to battery pack in any one of the preceding claims wherein, it is characterized in that, described wall construction (7) is arranged to the plane extension that is substantially perpendicular to described first component (4 or 5).
6. according to battery pack in any one of the preceding claims wherein, it is characterized in that, described first component (4 or 5) has at least one fixed part (5a, 5b, 14a, 14b) and described first component (4 or 5) via at least one, be fixedly connected with and be connected to described second component.
7. battery pack according to claim 6, it is characterized in that, described wall construction (7) is formed roughly U font, wherein, described fixed part (5a, 5b, 14a, 14b) corresponding to the shape ground of described wall construction (7), form and by described wall construction (7), surrounded at least in part.
8. according to the battery pack described in claim 6 or 7, it is characterized in that, described fixed part (5a, 5b, 14a, 14b) is that weld part and described first component (4 or 5) are welded to connect and are connected to described second component via at least one.
9. according to the battery pack described in any one in claim 6 to 8, it is characterized in that, described first component (4 or 5) has at least one, is preferably the holding element (9) of two, preferably be integrally formed to described first component (4 or 5), especially, two holding elements (9) are disposed in the described fixed part (5a of described the first connector component (4 or 5), 5b, 14a, opposition side 14b), wherein, each in described two holding elements (9) abuts against on the different wall of described wall construction (7).
10. battery pack according to claim 9, it is characterized in that, described at least one, the holding element (9) that is preferably two abuts against on described wall construction (7) obliquely, or it is characterized in that, described at least one, the holding element (9) that is preferably two angularly arranges with respect to described wall construction (7).
11. according to claim 3 or according to returning the battery pack described in any one in the claim 5 to 10 of drawing claim 3, it is characterized in that, at least one connecting element (5) is fixed to, preferred weld is to described connector bridge (4, 4a, 4b, 4c, 4d, 4e, 4f), wherein, described connecting element (5) provides and is carried in described connector bridge (4, 4a, 4b, 4c, 4d, 4e, the first power 4f), described the first power pulls described connector bridge (4, 4a, 4b, 4c, 4d, 4e, 4f) depart from the desired location of described connector bridge, wherein, described at least one holding element (9) clamps with force closure, described force closure provides the second power on the rightabout of described the first power with being provided by described connecting element (5).
12. according to returning the battery pack described in any one in the claim 6 to 10 of drawing claim 4, it is characterized in that, elastic force realizes described connecting element (5) loading stress on described being fixedly connected with, wherein, described at least one holding element (9) is clamped to described wall construction (7) and the power acting on the rightabout of the described stress with on described being fixedly connected with is provided with force closure.
13. bases are returned the battery pack described in the claim 6 to 12 of drawing claim 4, it is characterized in that, described fixed part is to comprise at least one first weld part (5a, 14a) with at least one second weld part (5b, weld part 14b), wherein, described the first weld part (5a, 14a) by groove (8) and described the second weld part (5b, 14b) separation, and wherein, at least one holding element (9) is disposed in described the first weld part and described the second weld part (5a, 14a, 5b, 14b) in each on.
14. according to the battery pack described in claim 3 to 13, it is characterized in that, described connector bridge (4, 4a, 4b, 4c, 4d, 4e, 4f) there is H font form or T font form or L font form or I font form, wherein, described at least one, preferably the holding element of two (9) is disposed at least one end of leg of described H font form or at least one end of the cross bar of described T font form or at least one end of the leg of described L font form or at least one end of described I font form, especially, wherein, described at least one, preferably the holding element of two (9) is disposed on each end of each leg of described H font form or on each end of the cross bar of described T font form or on each end of each leg of described L font form or on each end of described I font form.
15. according to battery pack in any one of the preceding claims wherein, it is characterized in that, described first component (4 or 5) comprises at least one pair of holding element (9), and described holding element forms a pair of barbed hook that the mobile resistance of the described first component of opposing (4 or 5) is provided.
16. according to claim 3 or return the battery pack described in the aforementioned claim draw claim 3, it is characterized in that, described connector bridge (4,4a, 4b, 4c, 4d, 4e, 4f) comprise that at least one the first holding element (9c) and described wall construction (7) comprise at least one second holding element (9d), wherein, described the first holding element (9c) and described the second holding element (9d) are disposed in described connector bridge (4,4a, 4b, 4c, 4d, 4e, 4f) opposition side.
17. battery pack according to claim 16, it is characterized in that, described the first holding element (9c) is in tilted layout with respect to described wall construction (9d) and described the second holding element (9d) is arranged to and is substantially perpendicular to described wall construction (7).
18. according to battery pack in any one of the preceding claims wherein, it is characterized in that, described wall construction (7) comprises two holding elements (9d) on the opposition side that is positioned at described first component (4 or 5), wherein, described first component (4 or 5) comprises at least one groove (8), described groove is divided into described first component the first fixed part (5a in the region of described holding element (9d), 14a) He the second fixed part (5b, 14b), make described the first fixed part (5a, 14a) with described the second fixed part (5b, 14b) can clamping to the geometry being formed by described wall construction (7) and described holding element (9d).
19. battery pack according to claim 18, is characterized in that, described wall construction (7) has each at least one otch (16) being adjacent in described holding element (16).
20. according to battery pack in any one of the preceding claims wherein, it is characterized in that, at least one battery unit (2) is via described first component (4 or 5) and/or via described second component (2 or 4), be electrically connected at least one terminal unit of described battery cell assemblies (1).
21. 1 kinds of rechargeable batteries, comprise according at least one battery pack of one in claim 1 to 20.
22. 1 kinds of hand-held garden instruments, such as GREEB HEDGE MACHINE, forced draft fan, brush cutter or chain saw, described hand-held garden instrument comprises at least one rechargeable battery having according at least one battery pack of in claim 1 to 20.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2012/056284 WO2013149668A1 (en) | 2012-04-05 | 2012-04-05 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104205410A true CN104205410A (en) | 2014-12-10 |
| CN104205410B CN104205410B (en) | 2017-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280072251.XA Active CN104205410B (en) | 2012-04-05 | 2012-04-05 | Battery pack |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104205410B (en) |
| DE (1) | DE112012006185B4 (en) |
| WO (1) | WO2013149668A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039611A (en) * | 2015-11-19 | 2017-08-11 | 三星Sdi株式会社 | Battery pack |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105830248B (en) | 2013-12-17 | 2019-11-01 | 胡斯华纳有限公司 | Battery pack with battery fixed equipment |
| JP6372704B2 (en) * | 2015-01-21 | 2018-08-15 | 豊田合成株式会社 | Battery module |
| CN106098993B (en) * | 2016-07-26 | 2018-08-07 | 广东松湖动力技术有限公司 | A kind of battery case |
| CN113169403B (en) * | 2018-11-30 | 2023-07-07 | 唐裔隆 | Power supply equipment and its parts (Battery tray) |
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| EP2438640B1 (en) | 2009-06-05 | 2015-12-16 | K2 Energy Solutions, Inc. | Lithium ion battery pack having passive cooling |
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- 2012-04-05 DE DE112012006185.3T patent/DE112012006185B4/en active Active
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| CN101142699A (en) * | 2005-04-19 | 2008-03-12 | 株式会社Lg化学 | Terminal-connecting means |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE112012006185T5 (en) | 2014-12-24 |
| CN104205410B (en) | 2017-12-19 |
| WO2013149668A1 (en) | 2013-10-10 |
| DE112012006185B4 (en) | 2024-02-08 |
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