CN101795035A - Hub motor with built-in secondary battery therein - Google Patents
Hub motor with built-in secondary battery therein Download PDFInfo
- Publication number
- CN101795035A CN101795035A CN201010136075A CN201010136075A CN101795035A CN 101795035 A CN101795035 A CN 101795035A CN 201010136075 A CN201010136075 A CN 201010136075A CN 201010136075 A CN201010136075 A CN 201010136075A CN 101795035 A CN101795035 A CN 101795035A
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- China
- Prior art keywords
- battery
- motor
- built
- secondary battery
- wheel hub
- 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.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011324 bead Substances 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract 2
- 229910001416 lithium ion Inorganic materials 0.000 abstract 2
- 239000002253 acid Substances 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 2
- 229910052493 LiFePO4 Inorganic materials 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- -1 LiFePO4 Chemical compound 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- NCZYUKGXRHBAHE-UHFFFAOYSA-K [Li+].P(=O)([O-])([O-])[O-].[Fe+2].[Li+] Chemical compound [Li+].P(=O)([O-])([O-])[O-].[Fe+2].[Li+] NCZYUKGXRHBAHE-UHFFFAOYSA-K 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a structure of a novel hub motor, in particular to a hub motor with a built-in secondary battery therein, relating to the lithium ion battery application field. The motor is composed of a stator part and a rotor serving as a casing, wherein the stator part consists of a fixed shaft, an iron core, a coil and a bracket; and a battery position is arranged between the fixed shaft and the iron core on the bracket. A battery pack is designed in the motor ingeniously to form a motor system with a built-in battery on the premise of increasing little volume of the motor, and an electrocar body structure is in no need of a battery case structure, thus facilitating design of the lithium ion electrocar and lowering cost.
Description
Technical field
The present invention relates to the structure of novel hub motor, and relate to field of lithium battery application, particularly a kind of with the wheel hub motor of built-in secondary battery to motor internal.
Background technology
Existing electric motor car, electric bicycle particularly, its overall structure all are that vehicle frame, motor, battery pack, several big critical pieces of controller constitute, in traditional application, because what use is lead-acid battery, volume of battery and weight are all very big, the lead-acid battery of the 12Ah that common electric bicycle uses, and weight is all more than 15kg, capacity reaches the battery of 20Ah, generally all more than 20kg, the weight of car load can reach 40kg to its weight, even heavier.So, use the electric bicycle of traditional lead-acid battery, its battery must adopt separate structure, promptly must battery case of placing battery of design, with battery in groups after, be placed in the battery case.Simultaneously, for battery case is placed on the electric bicycle, also must on the limited space of electric bicycle, design a position of placing battery case.Under the regular situation, be that battery is placed into front portion, mid-.The electric motor car of some greatly more is to adopt the position that battery is placed into the pedal below.In these modes, different troubles is arranged all, the mode of preamble battery, the reach of the center of gravity of car, the instability of riding, the mode that adopts has caused the electric motor car that uses lead-acid battery not only weight is big usually, and is simultaneously also very too fat to move on electric vehicle structure.
Progress along with the battery process technology, with the lithium battery is the secondary cell of representative, can be applied to electric bicycle even electric automobiles, adopt the novel electronic bicycle of secondary cell, it is little to have volume, in light weight, the advantage that life-span is long, with novel ferric phosphate lithium cell is example, present this battery volume approximately is 1/3 of a traditional lead acid batteries, weight is 1/3 of lead-acid battery, and the cycle life of battery pack can reach more than 1000 times, and be three to five times of lead-acid battery its useful life, outstanding more because lithium battery, particularly present novel lithium iron phosphate lithium battery has good environmental protection characteristic, can not cause environmental pollution in the use.
Present novel lithium battery electric bicycle, owing to used lithium battery, the volume ratio lead-acid battery volume and weight that takes up the battery case of battery reduces greatly, the volume of supporting battery case also further dwindles, thereby the position of placing battery case is more flexible, and the lithium battery motor-car is also just lighter and handier.But under the present circumstances; owing to be subjected to the influence of traditional lead acid batteries electric bicycle design; lithium battery motor-car structural design has still been continued to use the mode of traditional plumbic acid electric bicycle, still adopts four big part modes of vehicle frame, motor, battery case, controller usually.Be the mentality of designing of not breaking away from the lead-acid battery electric motor car on the structure, the electronic bicycle of lithium battery remains old face, not from improving in essence.
Summary of the invention
The object of the present invention is to provide a kind of with the wheel hub motor of built-in secondary battery to motor internal, the battery pack that overcomes the electronic bicycle of above-mentioned existing lithium battery is installed existing technical problem, it can increase under few situation at motor volume, the inside that battery pack is designed into motor has cleverly constituted the electric motor system of internal battery, need not to use battery pack structure in the electric bicycle body structure, thereby, and reduced cost for the design of lithium battery motor-car brings great convenience.
For achieving the above object, the present invention is achieved in that
A kind of with the novel hub motor of built-in secondary battery to motor internal, it is characterized in that: motor is made of stationary part and the rotor that serves as shell; Described stationary part is by fixed axis, iron core and line bag and be configured to, and is provided with battery compartment on the described support between fixed axis and iron core.
Described with the novel hub motor of built-in secondary battery to motor internal, it is characterized in that: some parting beads from fixed axis radiation direction iron core direction are set on the described support, are battery compartment between the parting bead.
Described with the novel hub motor of built-in secondary battery to motor internal, it is characterized in that: described battery compartment is an equilateral triangle.
Described with the novel hub motor of built-in secondary battery to motor internal, it is characterized in that: described battery compartment is a rhombus.
Described with the wheel hub motor of built-in secondary battery to motor internal, it is characterized in that: the perforate size of stationary part battery compartment is consistent with the shape of baby battery group with shape, and reserves certain interval, is used to increase the insulating barrier of battery and stator.
Described with the wheel hub motor of built-in secondary battery to motor internal, it is characterized in that: whole battery group is made of a plurality of little connection in series-parallel battery pack, be placed in the above-mentioned battery compartment, again the baby battery group is connected, constitute the voltage that meets the battery pack designing requirement, the axis direction of battery is with the parallel placement of direction of the fixed axis of motor stator.
Described with the wheel hub motor of built-in secondary battery to motor internal, it is characterized in that: use the electric core of cylindrical battery group formation battery pack, can use the column secondary battery of cobalt acid lithium or materials such as LiFePO4, ni-mh.
Description of drawings
Fig. 1 is conventional slowspeed machine stator structure schematic diagram.
Fig. 2 is that battery is at the inner schematic diagram of placing of motor stator.
Fig. 3 is the structure of baby battery.
Fig. 4 is the schematic diagram that motor stator internal cell storehouse is added with battery.
Fig. 5 is at the inner architecture figure that adopts three battery compartments of motor stator.
Embodiment
The present invention reaches the purpose that battery is built into motor internal by following structural design:
Fig. 1 is the stationary part structural representation of traditional electric bicycle slowspeed machine commonly used, and the stationary part of motor mainly contains three parts and constitutes fixed axis 1, iron core and line bag 2, support 3.Wherein, fixed axis 1 plays stator is fixed to vehicle frame, and locatees the wheel hub of rotor by bearing.The center of fixed axis 1 one sides is designed to hollow-core construction, in order to motor drive signal and charge power supply, is connected in the battery pack of motor internal.Iron core and line bag 2 parts are motor-driven power resources, are made of iron core and line bag two parts, and the line looping is around the hollow space of iron core.Support 3 parts are in order to connect and support fixation axle 1 and motor stator core and line bag 2, and in common motor the inside, holder part plays the effect of inside and outside two parts of fixed electrical machinery stator.
The stationary part of traditional slowspeed machine generally, can't be installed to battery its inside, former because: the diameter of support 2 parts of motor is less than normal, and the space of battery lack to be installed.The integral thickness of motor is thin partially, and behind the installation motor, it is big that the thickness of battery will become.The holder part of motor is a metal structure, need carry out tight insulating protection.
At above problem, design of the present invention is as follows:
Core thinking of the present invention is: the integral diameter of motor is increased, and purpose is the size that increases stationary part, vacating space on stator, and the position of reservation battery compartment is used to install battery.
Core design of the present invention is that the battery components storehouse is installed: traditional battery pack is global design, i.e. the mode that forms a whole of all connection in series-parallel battery pack.The present invention guarantees the allomeric function of motor simultaneously for the limited space of motor internal of battery can being packed into, simultaneously can with battery to cooperation, by traditional battery pack global design, change to the dispersion design of many battery compartments.
The example that is designed to six battery compartments describes below, design diagram sees that Fig. 2 (for convenience of explanation, the motor that only drawn in the schematic diagram is installed the stationary part of battery, does not draw and the present invention rotor part that it doesn't matter, and the figure of back adopts the same manner).Concrete structure is: some parting beads from fixed axis 1 radiation direction iron core direction are set on the support 3, are battery compartment 4 between the parting bead.Described battery compartment is an equilateral triangle.
The shape of the little battery pack of design is seen Fig. 3, and each baby battery group is three and two strings (three in parallel and then series connection of battery) structures, the whole shape that constitutes an equilateral triangle on the battery pack profile.Each baby battery group can be placed in the battery compartment of 4 positions among Fig. 2, the shape of the shape of battery compartment 4 and Fig. 3 battery in the comparison diagram 2, and the structure of the structure of battery compartment and baby battery group can be supporting fully.After the baby battery group is placed into battery compartment, externally battery pack is connected, obtain the battery pack of an integral body.Among Fig. 2, place six baby battery groups, add up to the battery pack that has constituted 12 strings,, just can constitute the battery pack of 38.4V, be used for substituting the 36V battery pack of plumbic acid if use the battery of LiFePO4.
Fig. 4 is in the schematic diagram of Fig. 2, the overall structure schematic diagram after the battery compartment of stator is put into battery 5, and Dui Ying battery is placed into the arranging situation behind the motor as we can see from the figure.
Among Fig. 5, it is the structural design that another one adopts the internal battery group, adopted the project organization of three battery compartments, battery is the compound mode of the battery pack of diamond structure, the obtuse angle of its rhombus is 120 °, and each rhombus battery pack can be held 12 batteries, constitutes one 3 and 4 battery pack of going here and there, three rhombus battery pack are evenly distributed in the center of circle of stator, have constituted the 36V battery pack of battery pack 3 and 12 strings thus.
More than Shi Yi two kinds of designs, its stator structure all has good mechanical stability, can effectively bear the moment of torsion of motor.Among Fig. 2, the fixed axis and the brace rod between the battery compartment of support are distributed as six, and among Fig. 5, the fixed axis of support and the brace rod between the battery compartment are distributed as three, the integrated support part all is designed to stable triangular structure, can effectively bear the moment of torsion that motor produces.
The structure of internal battery of the present invention, do not change the structure of conventional motors, but, removed original battery case owing to the inside that battery has been placed into motor, save a critical piece of electric motor car, can save the material cost and the production cost of electric motor car.
The structure of internal battery of the present invention has been simplified the annexation between motor and the battery, has reduced the resistance of line, thereby has reduced the loss on system's lead, has improved the utilization ratio of battery, has improved the distance travelled of electric motor car.
The structure of internal battery of the present invention owing to increased the radius of motor stator drive part, effectively raises driving moment, can improve the climbing and the lifting capacity of motor.
The structure of internal battery of the present invention has improved the battery system fail safe.The present invention is built into motor internal with battery, because what motor adopted is aluminum alloy casing, and the thickness of shell, can be far greater than the plastic cement of routine or the thickness of aluminium alloy battery box, the intensity meeting of motor housing is from far away greater than the intensity of original battery case, and is unusual even battery occurs at motor internal, the shell of its motor, can effectively protect battery when appearance is unusual, its harm does not enlarge yet.
Improved the classification of waterproof of battery, because battery is built into motor internal, and motor itself is exactly a Seal Design, and this design can effectively guarantee the sealing of battery, reaches the purpose of effective waterproof.
The present invention can supporting different materials battery, comprise Ni-MH battery, lithium manganate battery or ferric phosphate lithium cell, supporting very convenient.On structure, cylindrical battery, the security performance of battery own also can access effective guarantee.
The present invention is placed into motor internal with battery cleverly, constituted the wheel hub motor of internal battery, saved the external battery box, simplified the structure of present electric motor car, effectively reduced the production cost of material cost and electric motor car, improve the flexibility of electric motor vehicle appearance design, be not only applicable to the electric motor car of common 36V motor, be equally applicable to the 24V or the electric system of low-voltage more.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (5)
- One kind with built-in secondary battery to the wheel hub motor of motor internal, it is characterized in that: motor is made of stationary part and the rotor that serves as shell; Described stationary part is made of fixed axis (1), iron core and line bag (2) and support (3), is positioned on the described support (3) to be provided with battery compartment (4) between fixed axis (1) and the iron core.
- 2. according to claim 1 with the wheel hub motor of built-in secondary battery to motor internal, it is characterized in that: some parting beads from fixed axis (1) radiation direction iron core direction are set on the described support (3), are battery compartment (4) between the parting bead.
- 3. according to claim 2 with the wheel hub motor of built-in secondary battery to motor internal, it is characterized in that: described battery compartment is an equilateral triangle.
- 4. according to claim 2 with the wheel hub motor of built-in secondary battery to motor internal, it is characterized in that: described battery compartment is a rhombus.
- 5. according to claim 1 or 2 or the 3 or 4 described wheel hub motors that built-in secondary battery arrived motor internal, it is characterized in that: the perforate size of stationary part battery compartment is consistent with the shape of baby battery group with shape, and the reservation certain interval, be used to increase the insulating barrier of battery and stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010136075A CN101795035A (en) | 2010-03-30 | 2010-03-30 | Hub motor with built-in secondary battery therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010136075A CN101795035A (en) | 2010-03-30 | 2010-03-30 | Hub motor with built-in secondary battery therein |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101795035A true CN101795035A (en) | 2010-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010136075A Pending CN101795035A (en) | 2010-03-30 | 2010-03-30 | Hub motor with built-in secondary battery therein |
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| Country | Link |
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| CN (1) | CN101795035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825831A (en) * | 2022-05-30 | 2022-07-29 | 中国煤炭科工集团太原研究院有限公司 | Mining integrated self-adaptive independent electric drive unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191828A (en) * | 1997-02-28 | 1998-09-02 | 奥托·伯克矫形工业所有与管理两合公司 | Wheeled vehicle driven by physical strength |
| CN1596494A (en) * | 2001-11-27 | 2005-03-16 | 波峰实验室责任有限公司 | Rotary electric motor having separate control modules for respective stator electromagnets |
| JP2007174767A (en) * | 2005-12-20 | 2007-07-05 | Tetsuo Tanaka | Motor |
| JP2008044588A (en) * | 2006-08-18 | 2008-02-28 | Junichi Yoshimori | Generator and drive motor enabling hybrid function for two-wheel vehicle |
| CN201150023Y (en) * | 2007-12-11 | 2008-11-12 | 杨尧任 | Self-generating power supply apparatus using wheel |
| CN201323504Y (en) * | 2008-12-12 | 2009-10-07 | 刘世杰 | Motor with self-equipped power supply |
-
2010
- 2010-03-30 CN CN201010136075A patent/CN101795035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191828A (en) * | 1997-02-28 | 1998-09-02 | 奥托·伯克矫形工业所有与管理两合公司 | Wheeled vehicle driven by physical strength |
| CN1596494A (en) * | 2001-11-27 | 2005-03-16 | 波峰实验室责任有限公司 | Rotary electric motor having separate control modules for respective stator electromagnets |
| JP2007174767A (en) * | 2005-12-20 | 2007-07-05 | Tetsuo Tanaka | Motor |
| JP2008044588A (en) * | 2006-08-18 | 2008-02-28 | Junichi Yoshimori | Generator and drive motor enabling hybrid function for two-wheel vehicle |
| CN201150023Y (en) * | 2007-12-11 | 2008-11-12 | 杨尧任 | Self-generating power supply apparatus using wheel |
| CN201323504Y (en) * | 2008-12-12 | 2009-10-07 | 刘世杰 | Motor with self-equipped power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825831A (en) * | 2022-05-30 | 2022-07-29 | 中国煤炭科工集团太原研究院有限公司 | Mining integrated self-adaptive independent electric drive unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100804 |