US20090255084A1 - Removable Battery Pack with Latching Mechanism - Google Patents
Removable Battery Pack with Latching Mechanism Download PDFInfo
- Publication number
- US20090255084A1 US20090255084A1 US12/405,033 US40503309A US2009255084A1 US 20090255084 A1 US20090255084 A1 US 20090255084A1 US 40503309 A US40503309 A US 40503309A US 2009255084 A1 US2009255084 A1 US 2009255084A1
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- US
- United States
- Prior art keywords
- battery package
- engagement member
- rod
- cleaning device
- latching assembly
- 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.)
- Abandoned
Links
- 230000007246 mechanism Effects 0.000 title description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 27
- 239000012530 fluid Substances 0.000 claims 2
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
- A47L9/2873—Docking units or charging stations
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
- A47L9/2884—Details of arrangements of batteries or their installation
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
-
- 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
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- 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
-
- 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
Definitions
- the present disclosure generally relates to removable battery packs, and more particularly to a removable battery pack having an improved latching mechanism.
- a battery pack having an improved latching mechanism is removably disposed in a cleaning appliance with a suction motor impeller assembly (e.g., a stick-type or hand held portable type vacuum cleaner) for powering same.
- a suction motor impeller assembly e.g., a stick-type or hand held portable type vacuum cleaner
- the present disclosure will describe a removable battery pack particularly in association with a suction force cleaner, it is to be appreciated that the subject matter described herein has broader applications and may be advantageously employed in related environments and applications (e.g., for use in other powered devices including power tools, radios, power sprayers and the like).
- Removable battery packs have been provided in a wide variety of configurations for use with an infinite number of consumer products. As might be expected, there are many different types of battery latching mechanisms for securing removable battery packs to their respective electric powered devices. At least some of these are claimed to allow for easy removal and installation of the battery packs. These are often competing considerations in the design of a particular battery pack and/or a particular powered device that receives and is powered by the battery pack. A further competing consideration is the constant desire to provide battery packs, and devices powered thereby, at a lower cost without degrading the experience of the consumer in using the battery pack together with its powered device (or devices).
- a removable battery package or pack includes a housing and one or more batteries disposed within the housing and electrically connected to an electrical connector.
- a user contact is movably mounted in the housing for movable cooperation with the rod.
- a lever can be pivotally mounted to the housing or a push button or twist lever can be movably mounted to the housing.
- a rod such as a push rod is movably mounted to the housing. The push rod is adapted to be axially moved by the user contact.
- An engagement member such as a latch is movably mounted to the housing.
- the member is adapted to be moved between a latched position and an unlatched position by the push rod, when the push rod is axially moved by the lever or push button or twisted axially by a twist lever.
- the latch can be urged by a biasing element toward the latched position and can require axial movement by the push rod to force the latch toward the unlatched position, overcoming the urging of the biasing mechanism.
- axial movement of the push rod can occur along a first axis and movement of the latch between the latched position and the unlatched position can occur along a second axis.
- the second axis can be oriented approximately normal relative to the first axis.
- a tapered engagement can be provided between the push rod and the latch to translate movement of the push rod along the first axis to movement of the latch along the second axis.
- the push rod can be movable between a first or retracted position and a second or protruding position. Movement of the push rod from the first retracted position to the second protruding position can move the latch from the latched position to the unlatched position. In the second protruding position, the push rod can extend from the housing for ejecting the housing from an associated device in which the housing is received for powering thereof. If desired, the push rod can be urged toward the first retracted position by a biasing element. Also, if desired, the associated device from which the push rod can eject the housing can be a vacuum cleaner and the one of more batteries contained in the housing can be used to power the vacuum cleaner.
- a distal end of the lever relative to a pivotal connection of the lever to the housing can be pulled to drive the push rod axially downward to move the latch from the latched position inward into the housing to the unlatched position.
- a vacuum cleaner having a removable battery pack includes a housing having a suction inlet.
- a suction source is disposed within the vacuum cleaner housing for creating a suction source at the suction inlet.
- a battery pack housing is removably mounted within the vacuum cleaner housing.
- One or more batteries are disposed within the battery pack housing for powering the suction source.
- a latching mechanism includes a lever pivotally mounted to the battery pack housing, a push rod movably mounted to the battery pack housing so as to be axially movable by the lever, and a latch urged to a latched position wherein the latch locks the battery pack to the vacuum cleaner housing. An engagement between the push rod and the latch causes the latch to move to an unlatched position from the latched position when the push rod is sufficiently axially moved by the lever.
- a full stroke of the lever can cause the push rod to move the latch to the unlatched position and to protrude from the battery pack housing to eject the battery pack housing from the vacuum cleaner housing.
- a removable battery pack for a powered device includes a battery pack housing removably mounted within the powered device for providing power thereto.
- a latching mechanism includes a lever pivotally mounted to the battery pack housing.
- a push rod is movably mounted to the battery pack housing so as to be axially movable from a first position to a second position upon stroking of the lever.
- a latch locks the battery pack within the powered device when in a latched position. The latch is movable from the latched position to an unlatched position allowing the battery pack housing to be removed from the powered device upon the push rod being moved axially from the first position to the second position.
- the push rod when in the second position, can protrude from the battery pack housing. In this configuration, movement of the push rod from the first position to the second position helps to eject the battery pack from the powered device.
- a method for removing a battery pack from a powered device is provided. More particularly, in accordance with this aspect, a lever that is pivotally mounted on the battery pack is pulled or stroked. A push rod that is slidably disposed on the battery pack is axially advanced. Due to a mechanical linkage between the lever and the push rod, pulling of the lever causes axial advancement of the push rod. A latch that is slidably disposed on the battery pack is retracted to release the battery pack from the powered device. Specifically, due to a mechanical arrangement between the latch and the push rod, advancing of the push rod causes retraction of the latch. In one configuration, an ejection of the battery pack from the powered device is assisted by the push rod protruding from the battery pack upon axial advancement thereof.
- FIG. 1A is a perspective view of a removable battery pack having a release lever, the release lever shown in an actuated or pulled position.
- FIG. 1B is another perspective view of the removable battery pack of FIG. 1 showing a latch in a retracted or unlatched position and a push rod in an extended or protruding position.
- FIG. 2 is a perspective view of the removable battery pack seated on a recharging base.
- FIG. 3A is a perspective view of a vacuum cleaner having a receptacle for receipt of the battery pack.
- FIG. 3B is a front view of a vacuum cleaner having a battery pack removably disposed in the receptacle for powering the vacuum cleaner.
- FIG. 4 is a side elevation schematic view of the battery pack.
- FIG. 5 is an end elevation schematic view of the battery pack.
- FIG. 6 is an enlarged partial cross-section view of the battery pack shown in FIG. 5 showing an interface between a spring-biased push rod and a spring-biased latch.
- FIG. 7A is an underside perspective view of the removable battery pack showing the latch in a locking or latched position and the push rod in a retracted position.
- FIG. 7B is partial underside perspective view of the removable battery pack showing the latch in the retracted position and the push rod in the protruding position.
- FIG. 8A is a perspective view of the battery pack shown with a first cover removed to illustrate the longitudinal extent of the push rod and the batteries carried within the battery pack.
- FIG. 8B is another perspective view of the battery pack shown with a second, opposite cover removed, the first and second covers together forming a housing of the battery pack.
- FIG. 9A is an enlarged partial perspective view of the battery pack shown with the first cover removed to illustrate the lever in a normal resting position and the push rod in the retracted position.
- FIG. 9B is another partial perspective view of the battery pack shown with the first cover removed to illustrate the lever in the pulled position, which causes the push rod to be in the protruding position.
- FIG. 10 is a perspective view of a hand held portable suction cleaner with the removable battery in the battery receiving opening and well.
- FIG. 11 is a rear view of the hand held portable suction cleaner of FIG. 10 with the removable battery in the battery receiving opening and well.
- a stated range of “1 to 10” should be considered to include any and all sub-ranges-between (and inclusive of) the minimum value of 1 and the maximum value of 10; that is, all sub-ranges beginning with a minimum value of 1 or more and ending with a maximum value of 10 or less, e.g., 5.5 to 10.
- spatial or directional terms in regards to the position such as “left”, “right”, “inner”, “outer”, “above”, “below”, “top”, “bottom” “over”, “on”, “side”, “front”, “back” and the like have their standard dictionary meanings.
- FIGS. 1A and 1B show a removable battery pack 10 for a powered device.
- the battery pack 10 includes a housing 12 and one or more batteries 14 ( FIG. 8A ) disposed within the housing 12 .
- the housing 12 can be formed of a first shell or member 12 a and a second shell or member 12 b , with the members 12 a , 12 b held together by suitable fasteners 12 c (e.g., screws).
- a lever 16 is pivotally mounted to the housing 12 for enabling removal of the battery pack 10 from a powered device in which it is received for powering thereof.
- a one end 18 of the lever 16 which is spaced apart relative to a pivotal connection 20 of the lever 16 to the housing 12 (see FIGS. 8A-9B ), is pullable to unlatch the battery pack 10 from a powered device in which it is received and/or to eject the battery pack 10 from the device in which it is received.
- the lever 16 can have a movement angle about the pivot point 20 of from greater than one degree to less than 180 degrees and more suitably from 5 to less than 90 degrees.
- the end 18 of the lever 16 can be formed as a raised portion adjacent a recess 22 , the raised formation of the end 18 and the recess 22 appropriately sized to receive a user's finger for pivotal lifting of the lever 16 , particularly lifting of the end 18 thereof.
- the battery pack 10 can include appropriate positive and negative terminal connections for electrically connecting the battery pack 10 , and specifically the one or more batteries 14 thereof, to suitable electrical components of a powered device.
- the electrical connections 24 , 26 can extend from a bottom side 28 of the battery pack housing 12 and be provided adjacent a supporting structure 30 of the housing 12 for providing structural protection to the terminal connections 24 , 26 .
- the terminal electrical connections can be provided through an interface 36 that is slightly recessed within the housing 12 and thereby structurally protected or supported.
- the removable battery pack 10 can be received on a charging base 32 for recharging of the one or more batteries 14 of the battery pack 10 .
- the recharging base 32 can be constructed as is well known by those of skill in the art so as to receive electrical power through a conventional power cord 34 and convert the same into appropriate DC power to be received and stored by the one or more batteries 14 for subsequent powering of a powered device.
- the removable battery pack 10 can be used with a variety of powering devices configured to receive the battery pack 10 and receive power therefrom.
- the battery pack 10 can be used in association with a powered device, such as an electrically powered cleaning device such as a vacuum cleaner 40 .
- the vacuum cleaner 40 includes a vacuum cleaner housing 42 having a suction inlet 44 .
- a suction source (not shown) is disposed within the vacuum cleaner housing 42 for creating a vacuum at the suction inlet 44 , as is known and understood by those skilled in the art.
- the housing 42 includes a nozzle base portion 48 disposed at a lower end, pivotally connected to an elongated handle portion 50 .
- the nozzle portion 48 includes the suction inlet 44 defined therein and the handle portion 50 can house the motor/fan assembly forming the suction source.
- the handle 50 is integrated into the unit but the nozzle 48 with nozzle inlet 44 , suction fan assembly and removable battery 10 can be arranged in the body or housing 42 .
- the battery pack 10 can be removably mounted to or within the vacuum cleaner 40 .
- the battery pack 10 can be mounted either in the nozzle base 48 or in the handle portion 50 .
- the mounting in FIG. 3A can be in the opening and well 52 as shown in FIG. 3B .
- the one or more batteries 14 disposed within the battery pack housing 12 can be used for powering the suction source of the vacuum cleaner 40 .
- the battery pack 10 can be removed from the vacuum cleaner 40 and mounted on the recharging base 32 for recharging of the one or more batteries 14 .
- the battery pack 10 can include a latching mechanism comprised of the lever 16 pivotally mounted to the battery pack housing 12 , a push rod 62 movably mounted to the battery pack housing 12 and a latch 64 movably mounted to the battery pack housing 12 .
- the push rod 62 is adapted to be axially moved by the lever 16 and the latch 64 is adapted to be moved radially from a latched position to an unlatched position by the push rod 62 when the push rod is axially moved by the lever 16 .
- the latch 64 can lock the battery pack 10 within its power device (e.g., vacuum cleaner 40 ).
- the latch 64 is movable from its latched position ( FIG. 9A ) to its unlatched position ( FIG. 9B ) allowing the battery pack housing 12 to be removed from its powered device, when the push rod 62 is moved axially from a first position to a second position.
- the push rod 62 is movable from its first position to its second position upon stroking of the lever 16 (i.e., fully lifting the end 18 of the lever 16 .)
- lifting end 18 of the lever 16 causes the lever 16 to pivot about pivotal connection 20 .
- lever end 56 to point downwardly, contacting the upper end 58 of the push rod 62 and thereby driving the push rod axially downwardly.
- the lever 16 can include legs 74 depending from the end 18 . The legs 74 cooperate with the housing 12 to limit the stroke of the lever 16 .
- the latch 64 can be urged to its latched position wherein the latch 64 locks the battery pack 10 within its power device (e.g., to the vacuum cleaner 40 or vacuum cleaner housing 42 ).
- the latch 64 is urged by a biasing element, such as spring 66 , toward the latched position.
- Axial movement of the push rod 64 can force the latch 64 toward its unlatched position by overcoming the urging of the biasing element 66 .
- an engagement between the push rod 62 and the latch 64 can cause the latch 64 to move to the unlatched position (shown in FIG. 7B ) from the latched position (shown in FIG. 7A ) when the push rod 64 is sufficiently axially moved (i.e., fully stroked) by the lever 16 .
- axial movement of the push rod 62 occurs along a first axis and movement of the latch 64 between the latched position and the unlatched position occurs along a second axis.
- the second axis can be oriented approximately normal relative to the first axis.
- the engagement between the push rod 62 and the latch 64 can be a tapered engagement which translates movement of the push rod 62 along the first axis to movement of the latch 64 along the second axis.
- the push rod 62 can include a tapered portion 68 that engages a cooperating tapered portion 70 of the latch 64 upon axial movement of the push rod 62 to thereby move the latch 64 from its latched position to the unlatched position.
- the first position of the push rod 62 (shown in FIGS. 7A and 9A ) can be referred to as a retracted position and the second position of the push rod 62 (shown in FIGS. 7B and 9B ) can be referred to as a protruding position.
- the push rod 62 is movable between a first retracted position and a second protruding position. In the first retracted position, the push rod 62 is retracted within the housing 12 (i.e., it does protrude from the housing 12 ).
- the push rod 62 In the second protruding position, the push rod 62 extends from the battery pack housing 12 through aperture 76 defined in the underside 28 of the housing 12 for ejecting the housing 12 from an associated device in which the housing is received for powering thereof. Also, as already mentioned, movement of the push rod 62 from the first retracted position to the second protruding position moves the latch 64 from the latched position to the unlatched position.
- the push rod 62 can be urged toward its first retracted position by a biasing element, such as the illustrated spring 72 (only schematically illustrated in FIGS. 4 and 5 ).
- a biasing element such as the illustrated spring 72 (only schematically illustrated in FIGS. 4 and 5 ).
- a full stroke of the lever 16 causes the push rod 62 to move the latch 64 to the unlatched position and further causes the push rod 62 to protrude from the battery pack housing 12 , which can be used to assist in the ejection of the battery pack housing 12 from the housing of the powered device in which the battery pack is received (e.g., vacuum cleaner housing 42 ).
- the lever 16 that is pivotally mounted on the battery pack 10 can be pulled. Pulling up one end of the lever 16 causes the other end to push down on the push rod 62 , causing it to axially advance. Such axial advancement occurs as a result of the push rod 62 being slidably disposed on the battery pack 10 and mechanically arranged such that a rotating movement of the lever 16 is translated into axial movement of the push rod 62 . The advancing of the push rod 62 , as already described, causes the latch 64 to retract.
- Retraction of the latch 64 results from the latch being slidably disposed on the battery pack 10 and the tapered engagement between the push rod 62 and the latch 64 .
- the latch 64 allows the battery pack 10 to be removed from its powered device.
- the battery pack 10 can also be ejected from its powered device via the push rod 62 protruding from the battery pack 10 upon axial advancement thereof.
- latch 64 can be provided along the push rod 62 and within the housing 12 of the battery pack such that axial movement of the push rod 62 could slidably move any number of latches from respective latched positions to unlatched positions upon sufficient axial movement of the push rod.
- installation of the battery pack 10 into a powered device can operate to force the one or more latches (e.g., latch 64 ) inward against their respective biasing elements allowing the battery pack to be removably secured to a powered device. The configuration of the device and/or the latches can then allow the latches to be returned to their latched positions by the biasing mechanism when the battery pack is fully installed.
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Abstract
Description
- This application claims the benefit of U.S. provisional patent application Ser. No. 61/036,720 entitled REMOVABLE BATTERY PACK WITH LATCHING MECHANISM filed Mar. 14, 2008 the entirety of which is hereby incorporated by reference.
- The present disclosure generally relates to removable battery packs, and more particularly to a removable battery pack having an improved latching mechanism. In particular to one embodiment, a battery pack having an improved latching mechanism is removably disposed in a cleaning appliance with a suction motor impeller assembly (e.g., a stick-type or hand held portable type vacuum cleaner) for powering same. Though the present disclosure will describe a removable battery pack particularly in association with a suction force cleaner, it is to be appreciated that the subject matter described herein has broader applications and may be advantageously employed in related environments and applications (e.g., for use in other powered devices including power tools, radios, power sprayers and the like).
- Removable battery packs have been provided in a wide variety of configurations for use with an infinite number of consumer products. As might be expected, there are many different types of battery latching mechanisms for securing removable battery packs to their respective electric powered devices. At least some of these are claimed to allow for easy removal and installation of the battery packs. These are often competing considerations in the design of a particular battery pack and/or a particular powered device that receives and is powered by the battery pack. A further competing consideration is the constant desire to provide battery packs, and devices powered thereby, at a lower cost without degrading the experience of the consumer in using the battery pack together with its powered device (or devices).
- Much attention has been given to the design of removable battery packs for certain categories of consumer products. For example, the art is crowded with many removable battery pack designs and configurations for power tools (e.g., cordless drills and saws). Similarly, much attention has been given to removable battery packs for more sophisticated electronic devices, such as computers, portable DVD players and the like. However, relatively little attention has been paid to the removable battery packs for other types of more common consumer devices, such as suction force cleaners having a suction motor and impeller or fan assembly commonly referred to as vacuum cleaners. For Instead, for example, latching mechanisms for these other types of consumer devices seem to have been more of an afterthought. Often, for these devices, little attention is given to designing a battery pack latching mechanism that provides proper securing of the battery pack to the consumer device it is to power, while ensuring that the battery pack is easily attached and detached from its consumer device.
- According to one aspect of the present disclosure, a removable battery package or pack is provided. More particularly, in accordance with this aspect, the removable battery pack includes a housing and one or more batteries disposed within the housing and electrically connected to an electrical connector. A user contact is movably mounted in the housing for movable cooperation with the rod. Suitably a lever can be pivotally mounted to the housing or a push button or twist lever can be movably mounted to the housing. A rod such as a push rod is movably mounted to the housing. The push rod is adapted to be axially moved by the user contact. An engagement member such as a latch is movably mounted to the housing. The member is adapted to be moved between a latched position and an unlatched position by the push rod, when the push rod is axially moved by the lever or push button or twisted axially by a twist lever. If desired, the latch can be urged by a biasing element toward the latched position and can require axial movement by the push rod to force the latch toward the unlatched position, overcoming the urging of the biasing mechanism.
- In one configuration, axial movement of the push rod can occur along a first axis and movement of the latch between the latched position and the unlatched position can occur along a second axis. In one embodiment, the second axis can be oriented approximately normal relative to the first axis. If desired, a tapered engagement can be provided between the push rod and the latch to translate movement of the push rod along the first axis to movement of the latch along the second axis.
- In one embodiment, the push rod can be movable between a first or retracted position and a second or protruding position. Movement of the push rod from the first retracted position to the second protruding position can move the latch from the latched position to the unlatched position. In the second protruding position, the push rod can extend from the housing for ejecting the housing from an associated device in which the housing is received for powering thereof. If desired, the push rod can be urged toward the first retracted position by a biasing element. Also, if desired, the associated device from which the push rod can eject the housing can be a vacuum cleaner and the one of more batteries contained in the housing can be used to power the vacuum cleaner.
- In any of the foregoing configurations or a separate configuration, a distal end of the lever relative to a pivotal connection of the lever to the housing can be pulled to drive the push rod axially downward to move the latch from the latched position inward into the housing to the unlatched position.
- According to another aspect of the disclosure, a vacuum cleaner having a removable battery pack is provided. More particularly, in accordance with this aspect, the vacuum cleaner includes a housing having a suction inlet. A suction source is disposed within the vacuum cleaner housing for creating a suction source at the suction inlet. A battery pack housing is removably mounted within the vacuum cleaner housing. One or more batteries are disposed within the battery pack housing for powering the suction source. A latching mechanism includes a lever pivotally mounted to the battery pack housing, a push rod movably mounted to the battery pack housing so as to be axially movable by the lever, and a latch urged to a latched position wherein the latch locks the battery pack to the vacuum cleaner housing. An engagement between the push rod and the latch causes the latch to move to an unlatched position from the latched position when the push rod is sufficiently axially moved by the lever.
- In one configuration, a full stroke of the lever can cause the push rod to move the latch to the unlatched position and to protrude from the battery pack housing to eject the battery pack housing from the vacuum cleaner housing.
- According to still another aspect of the disclosure, a removable battery pack for a powered device is provided. More particularly, in accordance with this aspect, the removable battery pack includes a battery pack housing removably mounted within the powered device for providing power thereto. A latching mechanism includes a lever pivotally mounted to the battery pack housing. A push rod is movably mounted to the battery pack housing so as to be axially movable from a first position to a second position upon stroking of the lever. A latch locks the battery pack within the powered device when in a latched position. The latch is movable from the latched position to an unlatched position allowing the battery pack housing to be removed from the powered device upon the push rod being moved axially from the first position to the second position.
- In one configuration, the push rod, when in the second position, can protrude from the battery pack housing. In this configuration, movement of the push rod from the first position to the second position helps to eject the battery pack from the powered device.
- According to still yet another aspect of the instant disclosure, a method for removing a battery pack from a powered device is provided. More particularly, in accordance with this aspect, a lever that is pivotally mounted on the battery pack is pulled or stroked. A push rod that is slidably disposed on the battery pack is axially advanced. Due to a mechanical linkage between the lever and the push rod, pulling of the lever causes axial advancement of the push rod. A latch that is slidably disposed on the battery pack is retracted to release the battery pack from the powered device. Specifically, due to a mechanical arrangement between the latch and the push rod, advancing of the push rod causes retraction of the latch. In one configuration, an ejection of the battery pack from the powered device is assisted by the push rod protruding from the battery pack upon axial advancement thereof.
-
FIG. 1A is a perspective view of a removable battery pack having a release lever, the release lever shown in an actuated or pulled position. -
FIG. 1B is another perspective view of the removable battery pack ofFIG. 1 showing a latch in a retracted or unlatched position and a push rod in an extended or protruding position. -
FIG. 2 is a perspective view of the removable battery pack seated on a recharging base. -
FIG. 3A is a perspective view of a vacuum cleaner having a receptacle for receipt of the battery pack. -
FIG. 3B is a front view of a vacuum cleaner having a battery pack removably disposed in the receptacle for powering the vacuum cleaner. -
FIG. 4 is a side elevation schematic view of the battery pack. -
FIG. 5 is an end elevation schematic view of the battery pack. -
FIG. 6 is an enlarged partial cross-section view of the battery pack shown inFIG. 5 showing an interface between a spring-biased push rod and a spring-biased latch. -
FIG. 7A is an underside perspective view of the removable battery pack showing the latch in a locking or latched position and the push rod in a retracted position. -
FIG. 7B is partial underside perspective view of the removable battery pack showing the latch in the retracted position and the push rod in the protruding position. -
FIG. 8A is a perspective view of the battery pack shown with a first cover removed to illustrate the longitudinal extent of the push rod and the batteries carried within the battery pack. -
FIG. 8B is another perspective view of the battery pack shown with a second, opposite cover removed, the first and second covers together forming a housing of the battery pack. -
FIG. 9A is an enlarged partial perspective view of the battery pack shown with the first cover removed to illustrate the lever in a normal resting position and the push rod in the retracted position. -
FIG. 9B is another partial perspective view of the battery pack shown with the first cover removed to illustrate the lever in the pulled position, which causes the push rod to be in the protruding position. -
FIG. 10 is a perspective view of a hand held portable suction cleaner with the removable battery in the battery receiving opening and well. -
FIG. 11 is a rear view of the hand held portable suction cleaner ofFIG. 10 with the removable battery in the battery receiving opening and well. - In the description unless otherwise indicated, all numbers expressing quantities of dimensions, physical characteristics, and so forth used in the specification and claims are to be understood as being modified in all instances by the term “about”. Accordingly, unless indicated to the contrary, the numerical values set forth in the following specification and claims may vary depending upon the desired properties sought to be obtained in the present disclosure. At the very least, and not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims, each numerical value should at least be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Moreover, all ranges disclosed herein are to be understood to encompass the beginning and ending range values and any and all sub-ranges subsumed therein. For example, a stated range of “1 to 10” should be considered to include any and all sub-ranges-between (and inclusive of) the minimum value of 1 and the maximum value of 10; that is, all sub-ranges beginning with a minimum value of 1 or more and ending with a maximum value of 10 or less, e.g., 5.5 to 10. Also as used herein, spatial or directional terms in regards to the position such as “left”, “right”, “inner”, “outer”, “above”, “below”, “top”, “bottom” “over”, “on”, “side”, “front”, “back” and the like have their standard dictionary meanings.
- Referring now to the drawings, wherein the showings are for purposes of illustrating one or more exemplary embodiments of the present disclosure,
FIGS. 1A and 1B show aremovable battery pack 10 for a powered device. Thebattery pack 10 includes ahousing 12 and one or more batteries 14 (FIG. 8A ) disposed within thehousing 12. Thehousing 12 can be formed of a first shell ormember 12 a and a second shell ormember 12 b, with themembers suitable fasteners 12 c (e.g., screws). As will be understood and appreciated by those skilled in the art upon reading the present disclosure, alever 16 is pivotally mounted to thehousing 12 for enabling removal of thebattery pack 10 from a powered device in which it is received for powering thereof. - In particular, as will be described in more detail below, a one
end 18 of thelever 16, which is spaced apart relative to apivotal connection 20 of thelever 16 to the housing 12 (seeFIGS. 8A-9B ), is pullable to unlatch thebattery pack 10 from a powered device in which it is received and/or to eject thebattery pack 10 from the device in which it is received. Thelever 16 can have a movement angle about thepivot point 20 of from greater than one degree to less than 180 degrees and more suitably from 5 to less than 90 degrees. As illustrated, theend 18 of thelever 16 can be formed as a raised portion adjacent arecess 22, the raised formation of theend 18 and therecess 22 appropriately sized to receive a user's finger for pivotal lifting of thelever 16, particularly lifting of theend 18 thereof. - As is known and understood by those skilled in the art, the
battery pack 10 can include appropriate positive and negative terminal connections for electrically connecting thebattery pack 10, and specifically the one ormore batteries 14 thereof, to suitable electrical components of a powered device. In one arrangement, as illustrated inFIGS. 4 and 5 , theelectrical connections bottom side 28 of thebattery pack housing 12 and be provided adjacent a supportingstructure 30 of thehousing 12 for providing structural protection to theterminal connections FIGS. 7A and 7B , the terminal electrical connections can be provided through aninterface 36 that is slightly recessed within thehousing 12 and thereby structurally protected or supported. With reference toFIG. 2 , theremovable battery pack 10 can be received on a chargingbase 32 for recharging of the one ormore batteries 14 of thebattery pack 10. The rechargingbase 32 can be constructed as is well known by those of skill in the art so as to receive electrical power through aconventional power cord 34 and convert the same into appropriate DC power to be received and stored by the one ormore batteries 14 for subsequent powering of a powered device. - The
removable battery pack 10 can be used with a variety of powering devices configured to receive thebattery pack 10 and receive power therefrom. For example, with reference toFIGS. 3A , 3B, 10 and 11, thebattery pack 10 can be used in association with a powered device, such as an electrically powered cleaning device such as avacuum cleaner 40. As is conventional, thevacuum cleaner 40 includes a vacuumcleaner housing 42 having asuction inlet 44. A suction source (not shown) is disposed within the vacuumcleaner housing 42 for creating a vacuum at thesuction inlet 44, as is known and understood by those skilled in the art. Thevacuum cleaner 40 of the illustrated embodiment ofFIGS. 3A and 3B for a stick-type vacuum cleaner wherein thehousing 42 includes anozzle base portion 48 disposed at a lower end, pivotally connected to anelongated handle portion 50. Thenozzle portion 48 includes thesuction inlet 44 defined therein and thehandle portion 50 can house the motor/fan assembly forming the suction source. For a hand held vacuum cleaner as shown inFIGS. 10 and 11 thehandle 50 is integrated into the unit but thenozzle 48 withnozzle inlet 44, suction fan assembly andremovable battery 10 can be arranged in the body orhousing 42. - The
battery pack 10 can be removably mounted to or within thevacuum cleaner 40. In other words thebattery pack 10 can be mounted either in thenozzle base 48 or in thehandle portion 50. The mounting inFIG. 3A can be in the opening and well 52 as shown inFIG. 3B . The one ormore batteries 14 disposed within thebattery pack housing 12 can be used for powering the suction source of thevacuum cleaner 40. When the one ormore batteries 14 have lost some or all of their charge, thebattery pack 10 can be removed from thevacuum cleaner 40 and mounted on therecharging base 32 for recharging of the one ormore batteries 14. - With reference now to
FIGS. 4-9B , thebattery pack 10 can include a latching mechanism comprised of thelever 16 pivotally mounted to thebattery pack housing 12, apush rod 62 movably mounted to thebattery pack housing 12 and alatch 64 movably mounted to thebattery pack housing 12. As will be described in more detail below, thepush rod 62 is adapted to be axially moved by thelever 16 and thelatch 64 is adapted to be moved radially from a latched position to an unlatched position by thepush rod 62 when the push rod is axially moved by thelever 16. In the latched position, thelatch 64 can lock thebattery pack 10 within its power device (e.g., vacuum cleaner 40). - The
latch 64 is movable from its latched position (FIG. 9A ) to its unlatched position (FIG. 9B ) allowing thebattery pack housing 12 to be removed from its powered device, when thepush rod 62 is moved axially from a first position to a second position. In particular, thepush rod 62 is movable from its first position to its second position upon stroking of the lever 16 (i.e., fully lifting theend 18 of thelever 16.) With specific reference toFIGS. 9A and 9B , liftingend 18 of thelever 16 causes thelever 16 to pivot aboutpivotal connection 20. This, in turn, causeslever end 56 to point downwardly, contacting theupper end 58 of thepush rod 62 and thereby driving the push rod axially downwardly. In one embodiment (FIGS. 8A,8B) thelever 16 can includelegs 74 depending from theend 18. Thelegs 74 cooperate with thehousing 12 to limit the stroke of thelever 16. - As best shown in
FIG. 6 , thelatch 64 can be urged to its latched position wherein thelatch 64 locks thebattery pack 10 within its power device (e.g., to thevacuum cleaner 40 or vacuum cleaner housing 42). Specifically, thelatch 64 is urged by a biasing element, such asspring 66, toward the latched position. Axial movement of thepush rod 64, however, can force thelatch 64 toward its unlatched position by overcoming the urging of the biasingelement 66. In particular, an engagement between thepush rod 62 and thelatch 64 can cause thelatch 64 to move to the unlatched position (shown inFIG. 7B ) from the latched position (shown inFIG. 7A ) when thepush rod 64 is sufficiently axially moved (i.e., fully stroked) by thelever 16. - As shown in the illustrated embodiments, axial movement of the
push rod 62 occurs along a first axis and movement of thelatch 64 between the latched position and the unlatched position occurs along a second axis. The second axis can be oriented approximately normal relative to the first axis. As best shown inFIG. 6 , the engagement between thepush rod 62 and thelatch 64 can be a tapered engagement which translates movement of thepush rod 62 along the first axis to movement of thelatch 64 along the second axis. To create this tapered engagement, thepush rod 62 can include a taperedportion 68 that engages a cooperatingtapered portion 70 of thelatch 64 upon axial movement of thepush rod 62 to thereby move thelatch 64 from its latched position to the unlatched position. - The first position of the push rod 62 (shown in
FIGS. 7A and 9A ) can be referred to as a retracted position and the second position of the push rod 62 (shown inFIGS. 7B and 9B ) can be referred to as a protruding position. Thus, thepush rod 62 is movable between a first retracted position and a second protruding position. In the first retracted position, thepush rod 62 is retracted within the housing 12 (i.e., it does protrude from the housing 12). In the second protruding position, thepush rod 62 extends from thebattery pack housing 12 throughaperture 76 defined in theunderside 28 of thehousing 12 for ejecting thehousing 12 from an associated device in which the housing is received for powering thereof. Also, as already mentioned, movement of thepush rod 62 from the first retracted position to the second protruding position moves thelatch 64 from the latched position to the unlatched position. - The
push rod 62 can be urged toward its first retracted position by a biasing element, such as the illustrated spring 72 (only schematically illustrated inFIGS. 4 and 5 ). Thus, when theend 18 of thelever 16 is pulled, thepush rod 62 is driven axially downward to move thelatch 64, against the bias of the spring, from its latched position inward into thehousing 12 to its unlatched position. More specifically, a full stroke of thelever 16 causes thepush rod 62 to move thelatch 64 to the unlatched position and further causes thepush rod 62 to protrude from thebattery pack housing 12, which can be used to assist in the ejection of thebattery pack housing 12 from the housing of the powered device in which the battery pack is received (e.g., vacuum cleaner housing 42). - By the foregoing arrangement, a method for removing a battery pack from a powered device can be described. First, the
lever 16 that is pivotally mounted on thebattery pack 10 can be pulled. Pulling up one end of thelever 16 causes the other end to push down on thepush rod 62, causing it to axially advance. Such axial advancement occurs as a result of thepush rod 62 being slidably disposed on thebattery pack 10 and mechanically arranged such that a rotating movement of thelever 16 is translated into axial movement of thepush rod 62. The advancing of thepush rod 62, as already described, causes thelatch 64 to retract. Retraction of thelatch 64 results from the latch being slidably disposed on thebattery pack 10 and the tapered engagement between thepush rod 62 and thelatch 64. In the unlatched position, thelatch 64 allows thebattery pack 10 to be removed from its powered device. Thebattery pack 10 can also be ejected from its powered device via thepush rod 62 protruding from thebattery pack 10 upon axial advancement thereof. - Although in the illustrated embodiment, only a
single latch 64 is illustrated, it will be appreciated by those with skill in the art that any number oflatches 64 can be provided along thepush rod 62 and within thehousing 12 of the battery pack such that axial movement of thepush rod 62 could slidably move any number of latches from respective latched positions to unlatched positions upon sufficient axial movement of the push rod. Also, it should be appreciated that installation of thebattery pack 10 into a powered device can operate to force the one or more latches (e.g., latch 64) inward against their respective biasing elements allowing the battery pack to be removably secured to a powered device. The configuration of the device and/or the latches can then allow the latches to be returned to their latched positions by the biasing mechanism when the battery pack is fully installed. - It will be appreciated that various of the above-disclosed and other features and functions, or alternatives thereof, may be desirably combined into many other different systems or applications. Also it is to be appreciated that various presently unforeseen or unanticipated alternatives, modifications, variations or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the present disclosure as recited in the claims and the equivalents thereof.
Claims (20)
Priority Applications (12)
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US12/405,033 US20090255084A1 (en) | 2008-03-14 | 2009-03-16 | Removable Battery Pack with Latching Mechanism |
US12/580,878 US8607405B2 (en) | 2008-03-14 | 2009-10-16 | Battery powered cordless cleaning system |
EP16181499.1A EP3132730B1 (en) | 2008-10-16 | 2009-10-16 | Battery powered cordless cleaning system |
EP09821342.4A EP2337485B1 (en) | 2008-10-16 | 2009-10-16 | Battery powered cordless vacuum cleaner |
PCT/US2009/061054 WO2010045588A1 (en) | 2008-10-16 | 2009-10-16 | Battery powered cordless cleaning system |
CN200980150929XA CN102256522A (en) | 2008-10-16 | 2009-10-16 | Battery powered cordless cleaning system |
CN201811197063.5A CN109528080B (en) | 2008-10-16 | 2009-10-16 | Battery-powered cordless cleaning system |
US13/594,394 US8671509B2 (en) | 2008-03-14 | 2012-08-24 | Battery powered cordless cleaning system |
US13/740,765 US8756753B2 (en) | 2008-03-14 | 2013-01-14 | Battery powered cordless cleaning system |
US14/109,924 US9504364B2 (en) | 2008-03-14 | 2013-12-17 | Battery powered cordless cleaning system |
US14/644,376 US9461282B2 (en) | 2008-03-14 | 2015-03-11 | Removable battery pack with latching mechanism |
US15/362,204 US10568481B2 (en) | 2008-03-14 | 2016-11-28 | Battery powered cordless cleaning system |
Applications Claiming Priority (2)
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US3672008P | 2008-03-14 | 2008-03-14 | |
US12/405,033 US20090255084A1 (en) | 2008-03-14 | 2009-03-16 | Removable Battery Pack with Latching Mechanism |
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US29/326,368 Continuation-In-Part USD652377S1 (en) | 2008-03-14 | 2008-10-16 | Battery charger combination |
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US12/580,878 Continuation-In-Part US8607405B2 (en) | 2008-03-14 | 2009-10-16 | Battery powered cordless cleaning system |
US14/644,376 Continuation US9461282B2 (en) | 2008-03-14 | 2015-03-11 | Removable battery pack with latching mechanism |
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US20090255084A1 true US20090255084A1 (en) | 2009-10-15 |
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US12/405,033 Abandoned US20090255084A1 (en) | 2008-03-14 | 2009-03-16 | Removable Battery Pack with Latching Mechanism |
US14/644,376 Active US9461282B2 (en) | 2008-03-14 | 2015-03-11 | Removable battery pack with latching mechanism |
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US14/644,376 Active US9461282B2 (en) | 2008-03-14 | 2015-03-11 | Removable battery pack with latching mechanism |
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US20200129027A1 (en) * | 2017-06-12 | 2020-04-30 | Emerson Electric Co. | Rechargeable battery for powering a vacuum cleaner |
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JP2018094021A (en) * | 2016-12-12 | 2018-06-21 | 株式会社マキタ | Dust collector |
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US11278837B2 (en) | 2019-03-05 | 2022-03-22 | Makita Corporation | Backpack dust collector |
US20220133105A1 (en) * | 2020-11-05 | 2022-05-05 | Shenzhen Shermon Technology Co., Limited | Floor brush for vacuum cleaner |
EP4181297A1 (en) * | 2021-11-15 | 2023-05-17 | Whirlpool Corporation | Battery terminal force reduction feature for battery operated cordless appliance |
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US9461282B2 (en) | 2016-10-04 |
US20150188102A1 (en) | 2015-07-02 |
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