GB2534583A - Emergency battery supply for electronic mobility scooter - Google Patents

Emergency battery supply for electronic mobility scooter Download PDF

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Publication number
GB2534583A
GB2534583A GB1501402.0A GB201501402A GB2534583A GB 2534583 A GB2534583 A GB 2534583A GB 201501402 A GB201501402 A GB 201501402A GB 2534583 A GB2534583 A GB 2534583A
Authority
GB
United Kingdom
Prior art keywords
battery pack
mobility scooter
unit
emergency
secondary battery
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.)
Withdrawn
Application number
GB1501402.0A
Other versions
GB201501402D0 (en
Inventor
Andrew Bostock Mark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1501402.0A priority Critical patent/GB2534583A/en
Publication of GB201501402D0 publication Critical patent/GB201501402D0/en
Publication of GB2534583A publication Critical patent/GB2534583A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/003—Cycles with four or more wheels, specially adapted for disabled riders, e.g. personal mobility type vehicles with four wheels
    • B62K5/007—Cycles with four or more wheels, specially adapted for disabled riders, e.g. personal mobility type vehicles with four wheels power-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/24—Personal mobility vehicles
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

An emergency battery 2 for an electric vehicle comprises a secondary battery pack configured for physical connection to the body of an electric vehicle such as a mobility scooter and an electrical connection to the main battery pack. An integral handle 5 fixes the case under the seat. The case contains a lithium battery 4. A switch unit (fig 5) is attached to the handle bar of the scooter, enabling the user to switch between the batteries when required. Cables (not shown) attach the battery to the switch and main battery via outlet apertures 7.

Description

AN EMERGENCY BATTERY UNIT FOR A MOBILITY SCOOTER, AND A MOBILITY SCOOTER WITH AN EMERGENCY BATTERY
Field of the Invention
The present invention relates to an emergency or backup battery unit for a mobility scooter that provides an emergency power reserve. The present invention also relates to a mobility scooter with a secondary or emergency battery.
Background
A mobility scooter (sometimes referred to as a motorised shopping trolley or motorised shopping scooter) is a mobility aid used by people with mobility issues. It is generally equivalent to a powered wheelchair, but is configured like a motor scooter, with a user sitting on top of a wheeled chassis, the chassis normally having a pair of rear drive wheels and a front steering wheel or pair of front steering wheels that are controlled via handlebars. Mobility scooters are usually electrically driven, the electric drive motor powered by an integral battery. It is not uncommon for the battery to run out or to lose charge at inconvenient times -i.e. when the user is away from their home and/or a convenient or their usual charging point.
Prior Art
Accordingly a number of patent applications have been filed in an attempt to resolve 25 the problem or similar, including the following: US20090045774 describes and shows a battery pack for powering a portable electronic device. The battery pack includes means for connecting the battery pack to the portable electronic device such that a main power terminal of the battery pack engages a main power input port of the portable electronic device. An auxiliary power output terminal is located on an outer surface of the portable electronic device that is capable of receiving a power cord for powering the portable electronic device through an auxiliary power input port located on the portable electronic device. A charger input terminal is also included on the outer surface of the battery pack for receiving the power cord for recharging the battery pack.
JP2006114280 describes and shows a lithium secondary battery superior in discharge performance at a large current, having less deterioration in charge and discharge cycle life. The lithium secondary battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte containing lithium salt. The thickness of the positive electrode and/or negative electrode is 0.5-10 mm, and the non-aqueous electrolyte contains a non-ionic surfactant.
JP10118130 describes and shows a charging device for a motor-driven wheelchair, where a battery case is mounted under the seat of the motor driven wheelchair, a charger attached adjacently to the battery case, a cord for power source connection connected to the charger. A cord housing pocket part is arranged and the cord housing pocket part is formed so as to be freely opened/closed while opening its upper part. Then, the cord housing pocket part is arranged at a seat side position between a fore wheel and rear wheels so as to be opened toward the side.
In contrast the present invention provides a back-up or secondary battery that is lightweight and inexpensive and which will provide sufficient power to allow a user to return home if the main battery no longer has sufficient charge.
Summary of the Invention
According to the present invention in a first aspect there is provided an emergency battery unit for a mobility scooter, comprising: a secondary battery pack configured for physical connection to the body of a mobility scooter and electrical connection to the main battery pack of the mobility scooter, and; a user-operable switch unit configured for physical connection to the body of a mobility scooter, the switch unit connecting between the main battery pack and the secondary battery pack, and operable to switch the drive power source between the main battery pack and the secondary battery pack. This is advantageous as it allows a user to switch to emergency power if their main battery unit inadvertently runs out or is unable to provide sufficient power for mobility while they are away from home and are unable to charge the battery.
In an embodiment, the emergency battery unit further comprises a waterproof casing 35 configured to surround the secondary battery pack. This helps to ensure the battery pack is protected and will not be inadvertently damaged during use.
In an embodiment, the waterproof casing is configured to at least an IP65 ingress protection rating. This ensures that the battery will be protected sufficiently during normal operation.
In an embodiment, the secondary battery pack is configured to provide a range of at least 3Km. This is substantially sufficient to return a user to their home charging station.
In an embodiment, the secondary battery pack has an electric charge of at least 4000mAh. This is substantially sufficient to return a user to their home charging station.
In an embodiment, the battery pack is configured for connection under the seat of a 15 mobility scooter. This allows the battery pack to be fitted or retrofitted in a location that is discrete and out of the way for normal operations.
In an embodiment, the battery pack is configured for connection to the handlebar post of a mobility scooter. This allows the battery pack to be fitted or retrofitted in a 20 location that is discrete and out of the way for normal operations.
In an embodiment, the switch unit and secondary battery pack are configured so that the switch unit can be located remotely from the secondary battery pack. This allows the switch to be located in a location that is convenient for a user, and for the battery 25 pack to be located out of the way.
In an embodiment, the switch unit is connected to the secondary battery pack via a cable. This is a robust and effective way to transmit signals from the switch to the battery pack.
In a second aspect there is provided a mobility scooter comprising a backup battery as outlined an any one the preceding statements.
In an embodiment, the mobility scooter has a main battery pack that provides an 35 electric charge of at least 20Ah.
Brief Description of Figures
Figure 1 shows a front perspective view from above and to one side of a mobility scooter that has the emergency battery unit of an embodiment of the present 5 invention mounted under the seat.
Figure 2 shows a perspective view of the emergency battery unit of figure 1.
Figure 3 shows an exploded view of the emergency battery unit of figures 1 and 2 Figure 4 shows an alternative embodiment of emergency battery unit, clamped to the steering stem of a mobility scooter.
Figure 5 shows a perspective view of a switch unit according to an embodiment of 15 the present invention.
Detailed Description of Figures
An embodiment of the emergency battery unit of the present invention will now be 20 described with reference to the figures.
A mobility scooter 1 is shown in figure 1. The scooter 1 is of the standard type, having a chassis on which is mounted a seat for a user, with a main battery pack located on the chassis under the seat. Two drive wheels are located on the sides of the chassis at the rear, each side of the main battery pack. A steering wheel is located at the front of the scooter, with a steering column extending upwards from the front wheel, in front of a user seated on the seat. The main battery pack on this type of scooter usually provides an electric charge of at least 20Ah.
The secondary or emergency battery unit 2 according to an embodiment of the invention is mounted under the seat, above the main battery pack or unit. The emergency battery unit 2 comprises a casing 3 that contains a lithium battery 4. The casing 3 is configured to provide at least an IP65 ingress protection rating, to prevent water, dust and other potentially damaging material from entering the unit, and to ensure that the battery will be protected sufficiently during normal operation.
The casing has an integral handle 5 that allows the casing 3 to be connected around a post or pillar, such as the seat post of the mobility scooter 1. The handle 5 is connected to the main body of the casing 3 by screws, bolts or similar, with an aperture formed between the handle 5 and casing 3 through which the seat post passes. Tightening the screws or bolts clamps the seat post between the handle 5 and casing 3 to ensure the emergency battery unit 2 is held securely in position. The emergency battery unit 2 could also be located in any other convenient location, such as around the steering post or steering stem of the scooter 1.
The battery 4 is electrically connected to the main battery pack via a cable or cables (not shown) that extend from the casing 4 via outlet aperture(s) 7 at the opposite end from the handle 5. Another cable (not shown) extends from the casing to a switch unit 6. The switch unit 6 allows a user to activate the battery 4 to provide power to the scooter 1. The switch unit 6 can be located or mounted wherever is convenient for a user, for example on the handlebars of the scooter 1, connected to the emergency battery unit 2 by a cable or similar. If a user accidentally or inadvertently runs down the main battery pack while they are out and about and are unable to easily plug the main battery pack in for charging, they can switch to the reserve or emergency battery unit 2 by operating the switch. This will provide sufficient power to get them home or to their charging location.
It is preferred that the secondary battery pack 2 provides a range of at least 3Km.
This is substantially sufficient to return a user to their home charging station. For most models/makes of scooter, an electric charge of at least 4000mAh will be sufficient for the secondary battery pack 2. has This is substantially sufficient to return a user to their home charging station.
The invention has been described by way of examples only and it will be appreciated that variation may be made to the above-mentioned embodiments without departing from the scope of invention. Firstly it will be understood that any features described in relation to any particular embodiment may be featured in combinations with other embodiments.
With respect to the specification therefore, it is to be realised that the optimum dimensional relationships for the parts of the invention, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention.
Therefore, the foregoing is considered as illustrative only of the principles of the invention, with variation and implementation obvious and clear on the basis of either common general knowledge or of expert knowledge in the field concerned. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as set out in the accompanying claims.

Claims (13)

  1. Claims 1. An emergency battery unit for a mobility scooter, comprising: a secondary battery pack configured for physical connection to the body of a mobility scooter and electrical connection to the main battery pack of the mobility scooter; a user-operable switch unit configured for physical connection to the body of a mobility scooter, the switch unit connecting between the main battery pack and the secondary battery pack, and operable to switch the drive power source between the main battery pack and the secondary battery pack.
  2. 2. An emergency battery unit as claimed in claim 1 further comprising a waterproof casing configured to surround the secondary battery pack.
  3. 3. An emergency battery unit as claimed in claim 2 wherein the waterproof casing is configured to at least an IP65 ingress protection rating.
  4. 4. An emergency battery unit as claimed in any one of claims 1 to 3 wherein the secondary battery pack is configured to provide a range of at least 3Km.
  5. 5. An emergency battery unit as claimed in claim 4 wherein the secondary battery pack provides an electric charge of at least 4000mAh.
  6. 6. An emergency battery unit as claimed in any one of claim 1 to 5 wherein the battery pack is configured for connection under the seat of a mobility scooter.
  7. 7. An emergency battery unit as claimed in any one of claim 1 to 6 wherein the battery pack is configured for connection to the handlebar post of a mobility scooter.
  8. 8. An emergency battery unit as claimed in any one of claim 1 to 7 wherein the switch unit and secondary battery pack are configured so that the switch unit can be located remotely from the secondary battery pack.
  9. 9. An emergency battery unit as claimed in claim 8 wherein the switch unit is connected to the secondary battery pack via a cable.
  10. 10. A mobility scooter comprising a backup battery as claimed in any one of claims 1 to 9.
  11. 11. A mobility scooter comprising a backup battery as claimed in claim 10 wherein the mobility scooter has a main battery pack that provides an electric charge of at least 20Ah.
  12. 12. An emergency battery unit substantially as herein described with reference to the figures.O COAMENDMENTS TO CLAIMS HAVE BEEN FILED AS FOLLOWSClaims 1. A backup battery unit for a mobility scooter, the backup battery unit comprising: a secondary battery pack comprising: a waterproof casing configured to at least an IP65 ingress protection rating, and having: a main body; an integral handle connected to the main body by screws, bolts or similar, to form an aperture between the handle and casing through which a post or pillar of the mobility scooter is passable to be clamped securely; and at least one electrical outlet aperture at an end of the main body opposite the handle; and a lithium battery contained within the casing, the lithium battery having an electric charge of at least 4000mAh; one or more cables extending from the at least one electrical outlet aperture, at least one of said one or more cables configured to electrically connect the lithium battery to a main battery pack of the mobility scooter; a user-operable switch unit electrically connected to the secondary battery pack via at least one of said one or more cables, and configured to be physically connectable to the body of the mobility scooter at a location remote from the secondary battery pack, the user-operable switch unit configured to switch a power source of an electric drive motor of the mobility scooter between the main battery pack and the secondary battery pack.2. A mobility scooter, comprising: a chassis; a seat for a user mounted on the chassis; a main battery pack located on the chassis under the seat; a pair of rear drive wheels located on sides of the chassis at the rear, each side of the main battery pack; an electric drive motor arranged to drive the pair of rear drive wheels; a main battery pack integral with the drive motor, the main battery pack providing an electric charge of at least 20Ah; a front steering wheel or pair of front steering wheels; a steering column extending upwards from the front steering wheel or pair of front steering wheels, in front of a user seated on the seat; handlebars arranged to control the front steering wheel or pair of front steering wheels; and a backup battery unit according to claim
  13. 1.3. A mobility scooter according to claim 2, wherein the battery pack is connected under the seat of the mobility scooter, above the main battery pack.4. A mobility scooter according to claim 2, wherein the battery pack is connected to the steering column of the mobility scooter.5. A mobility scooter according to any one of claims 2 to 4, wherein the user-operable switch unit is mounted on the handlebars of the mobility scooter.6. A mobility scooter substantially as described herein with reference to the accompanying drawings.O CO
GB1501402.0A 2015-01-28 2015-01-28 Emergency battery supply for electronic mobility scooter Withdrawn GB2534583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1501402.0A GB2534583A (en) 2015-01-28 2015-01-28 Emergency battery supply for electronic mobility scooter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1501402.0A GB2534583A (en) 2015-01-28 2015-01-28 Emergency battery supply for electronic mobility scooter

Publications (2)

Publication Number Publication Date
GB201501402D0 GB201501402D0 (en) 2015-03-11
GB2534583A true GB2534583A (en) 2016-08-03

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Family Applications (1)

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GB1501402.0A Withdrawn GB2534583A (en) 2015-01-28 2015-01-28 Emergency battery supply for electronic mobility scooter

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050035737A1 (en) * 2003-08-11 2005-02-17 Whodathought Holdings, Inc. [Multiple Battery System and Auxiliary Battery Attachment System]
CN201808464U (en) * 2010-08-17 2011-04-27 全栋(南京)太阳能光伏有限公司 Standby battery device for electric vehicles
KR20120053708A (en) * 2010-11-18 2012-05-29 주식회사 차후 Emergency battery for starting an electric vehicle and method thereof
TW201302513A (en) * 2011-07-01 2013-01-16 wen-tian Cai Electrical vehicle control device having backup power
CN104218637A (en) * 2014-08-20 2014-12-17 长兴飞扬动力能源科技有限公司 Electric vehicle range extending device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050035737A1 (en) * 2003-08-11 2005-02-17 Whodathought Holdings, Inc. [Multiple Battery System and Auxiliary Battery Attachment System]
CN201808464U (en) * 2010-08-17 2011-04-27 全栋(南京)太阳能光伏有限公司 Standby battery device for electric vehicles
KR20120053708A (en) * 2010-11-18 2012-05-29 주식회사 차후 Emergency battery for starting an electric vehicle and method thereof
TW201302513A (en) * 2011-07-01 2013-01-16 wen-tian Cai Electrical vehicle control device having backup power
CN104218637A (en) * 2014-08-20 2014-12-17 长兴飞扬动力能源科技有限公司 Electric vehicle range extending device

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