CA2001020C - Battery housing with integral latch and positive displacement apparatus - Google Patents
Battery housing with integral latch and positive displacement apparatusInfo
- Publication number
- CA2001020C CA2001020C CA002001020A CA2001020A CA2001020C CA 2001020 C CA2001020 C CA 2001020C CA 002001020 A CA002001020 A CA 002001020A CA 2001020 A CA2001020 A CA 2001020A CA 2001020 C CA2001020 C CA 2001020C
- Authority
- CA
- Canada
- Prior art keywords
- battery housing
- battery
- housing
- torsion bar
- accordance
- 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.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000013011 mating Effects 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0262—Details of the structure or mounting of specific components for a battery compartment
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3883—Arrangements for mounting batteries or battery chargers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Electrochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Telephone Set Structure (AREA)
- Electromechanical Clocks (AREA)
- Primary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
- Hybrid Cells (AREA)
- Electric Clocks (AREA)
- Lock And Its Accessories (AREA)
Abstract
BATTERY HOUSING WITH INTEGRAL LATCH AND
POSITIVE DISPLACEMENT APPARATUS
Abstract of the Invention A battery housing (105) with an integral latch (201) and a cantilevered spring finger positive displacement mechanism (320, 321) is disclosed. The slide-on battery is captivated by guide rails (307-312) on each side of the mating surface of the battery housing. When the battery is properly located, a torsion bar latch (201) locks the battery in place. When the latch is activated by the user to remove the battery, cantilevered spring fingers (320, 321) force the battery housing away from its locked position.
POSITIVE DISPLACEMENT APPARATUS
Abstract of the Invention A battery housing (105) with an integral latch (201) and a cantilevered spring finger positive displacement mechanism (320, 321) is disclosed. The slide-on battery is captivated by guide rails (307-312) on each side of the mating surface of the battery housing. When the battery is properly located, a torsion bar latch (201) locks the battery in place. When the latch is activated by the user to remove the battery, cantilevered spring fingers (320, 321) force the battery housing away from its locked position.
Description
- 200 1 020 , BATI~RY HOUSING WmI XNTEGRAL LATCH AND
POSITIVE DISPLACEMENT APPARATUS
BackFrolmd of the Invention T}li8 invention relates generslly to bat~ery bousing apparatus and more particularly to an intsgral battery 10 housing assembly which has an integral latching mechanism and integral spring fingers to provide positive displacement of the battery when the latch mechanism iB disengaged. This invention is related to Canadian Patent No. 1,292,514 filed on behalf of Michael W. Zurek et al.
Miniature electronic equipment i9 often portaUe in nature and, as such, require~ a portable source of power such as a battery. A battery ~upply may be conveniently attached to the housing of the miniature electronic equipment and make 20 electrical contact by way of a conventional connector. To make battery char~png easier, mechanisms have been devised to enable the user to easily disconnect a spent battery and replace it with a freshly charged battery. It has been proven desirable to securely affix the detachable battery to the miniature 25 elPctronic equipment by way of some ~ort of latching mechanism. As the equipment becomes smaller, however, volume within the miniature electronic equipment cannot be afforded for e~tensive latching mechanisms. Thu8, it would be advantageous for latching mechanisms to be placed in 30 locations other than within the miniature electronic equipment.
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Summary 9f ~e Invention It is, therefore, one object of the present invention to provide a battery housing utilizin~ an integral latch 5 mechanism.
It i8 another object of the present invention to utilize cantilevered spring fingers integral to the battery housing to provide a po~itive displacement of the battery when the latch is disengaged.
It is a further object of the present invention to minimize binding of the battery housing during installation and disengsgement.
Accordingly, these and other objects are realized in the present invention which encompasses a unique batte~r housing having integral latch and positive displacement spring fingers to enable easy installation and removal of the battery.
Brief I)escIi~tion ~h~
Figure 1 is an isometric drawing of a hand-held portable radiotslephone which may employ the present invention.
Figures 2A and 2B are drawings of a battery housing (Fig. 2A) and portable radiotelephone (Fig. 2B) in which the battery has been detached from the portable radiotelephone.
Eigure 3 is a view of the mating surface of the battery of Fig. 2A shQwing the integral latch, positive displacement, cantilevered spring fingers, and reduced travel gwde rails of the present inven~on.
Figure 4 is an exploded view of the battery of Fig. 2A.
Figure 5 i~ a view of the cantilevered spring fingers which may be used in the battery housing of Fig. 2A.
.
.
POSITIVE DISPLACEMENT APPARATUS
BackFrolmd of the Invention T}li8 invention relates generslly to bat~ery bousing apparatus and more particularly to an intsgral battery 10 housing assembly which has an integral latching mechanism and integral spring fingers to provide positive displacement of the battery when the latch mechanism iB disengaged. This invention is related to Canadian Patent No. 1,292,514 filed on behalf of Michael W. Zurek et al.
Miniature electronic equipment i9 often portaUe in nature and, as such, require~ a portable source of power such as a battery. A battery ~upply may be conveniently attached to the housing of the miniature electronic equipment and make 20 electrical contact by way of a conventional connector. To make battery char~png easier, mechanisms have been devised to enable the user to easily disconnect a spent battery and replace it with a freshly charged battery. It has been proven desirable to securely affix the detachable battery to the miniature 25 elPctronic equipment by way of some ~ort of latching mechanism. As the equipment becomes smaller, however, volume within the miniature electronic equipment cannot be afforded for e~tensive latching mechanisms. Thu8, it would be advantageous for latching mechanisms to be placed in 30 locations other than within the miniature electronic equipment.
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.
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Summary 9f ~e Invention It is, therefore, one object of the present invention to provide a battery housing utilizin~ an integral latch 5 mechanism.
It i8 another object of the present invention to utilize cantilevered spring fingers integral to the battery housing to provide a po~itive displacement of the battery when the latch is disengaged.
It is a further object of the present invention to minimize binding of the battery housing during installation and disengsgement.
Accordingly, these and other objects are realized in the present invention which encompasses a unique batte~r housing having integral latch and positive displacement spring fingers to enable easy installation and removal of the battery.
Brief I)escIi~tion ~h~
Figure 1 is an isometric drawing of a hand-held portable radiotslephone which may employ the present invention.
Figures 2A and 2B are drawings of a battery housing (Fig. 2A) and portable radiotelephone (Fig. 2B) in which the battery has been detached from the portable radiotelephone.
Eigure 3 is a view of the mating surface of the battery of Fig. 2A shQwing the integral latch, positive displacement, cantilevered spring fingers, and reduced travel gwde rails of the present inven~on.
Figure 4 is an exploded view of the battery of Fig. 2A.
Figure 5 i~ a view of the cantilevered spring fingers which may be used in the battery housing of Fig. 2A.
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Figure 6 is an isometric ~iew of the latch mechanism of the battery housing of Fig. 3.
I)etailed l:)escli~tion of the Preferred Er~abQ~m~
A portable radiotelephone adapted to be used in a cellular radiotelephone system is shown in Fig. 1. The present invention may be employed in such a portable radiotelephone as well as in other miniature electronic 10 equipment. The illustrated portable unit consists of two external portion3, a body portion 102 and a flip element portion 104, in addition to a detachable battery 105. The drawing of Fig. 1 shows the flip element 104 in an "open" position such that a user of the portable unit may listen via earpiece 106 15 and may speak into a microphone 107. A telephone dial, or -keypad, 110 consists of a plurality of buttons numbered one through zero, #, and *, in a familiar telephone arrangement.
The keypad 110 also has additional function buttons such as "send", "end", "on/ofP', and other buttons associated with 20 telephone number recall.
Since the portable radiotelephone of Fig. 1 is indeed portable, some source of electrical energy is necessary to power the electrical functions of this radiotelephone. The source of this electrical energy is a battery 10~ which is 25 typically implemented as a rechargeable electrochemical cell or ce~ls. It is expected that the user will be aUe to either recharge the battery while the battery is attached to the radio or detach the battery from the radio and charge it separately.
RefelTing now to Fig. 2A, the configuration of the 30 detachable battery 105 can be apprehended in the condition where the batte~r 105 is detached from the portable radiotelephone of Fig. 1. An integral latch mechanism 201 is ~ . . .
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integrally molded on the batte~ housing. (In the preferred embodiment of the present inventinn, the battery housing consists of two halves which are permanently affixed together.
The latch mechanism iB molded into the inside half of the 5 plastic housing). To disengage the battery 106 from the portable radiotelephone 102, the latch mechanism 201 is pushed at the portion visible in Fig 2A thereby causing a torsion beam (not shown) to rotate and cause a catch (not shown) to retract form a pocket 212 in the portable 10 radiotelephone 102. (The portable radiotelephone 102, in a rear elevation view with the battery removed, is ~hown in Fig.
2B). This action releases the battery from its locked position and enables the batte~y housing 105 to be removed form the portable radiotelephone 102. The mating surface of the 15 portable radiotelephone 102 has a pocket or indented slot 212 which is 80 formed and positioned that it engages the catch portion of latch mechanism 201 when the battery housing 105 is located in ita fully attached position. The battery housing is thereby locked in place. Guide rails 213 through 218 extend 20 from a ~urface of the portable radiotelephone housing 102 and are disposed opposite similar g ude rails on the battery housing 105. The guide rails of the battery housing 105 are captivated beneath guide rails 213 through 218 ofthe portable radiotelephone housing 102 when the battery housing 105 is in 25 its operational (and locJ~ed) position. The operational position is, of course, when electrical contacts 225 have contacted mating contacts 325 (not visible) of the battery housing 105.
Also visible ~ Fig. 2B are two molded flanges 220 and 221 which provide surfaces useable for preloading cantilevered 30 springs enabling positive displacement of the battery housing 105 when it is unlocked.
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Lateral slots 233 and 235 in Fig. 2A on opposite sides of the battery housing assembly 105 are located in a position such that the battery alone or the batter,y and portable radiotelephone together may slide into a common battery charging unit and be properly orie~ted relative to the battery charging contacts 239.
The surface of the battery hou~ing 105 which mates to the portable radiotelephone of Fig. 2B is shown in the elevation view of the mating surface of Fig. 3. Tbe latch mechanism 201 1 0 is seen in greater detail and it can be perceived how the catch 301 rotates about the torsion bar 303 when the button portion 305 is pressed by the user to remove the battery. An isometric view of the latch mechanism is shown in Fig. 6. Such a button pressing in a direction out of the plane of the page of Fig, 3 1 5 (and into indented area 227 of the portable radiotelephone housing 102) causes torsion bar 303 to rotate and move catch 301 into the plane of the page of Fig. 3. This motion disengages the catch 301 from slot 212 (shown in Fig. 2B) thereby unlocking the batte~r housing and enabling the user to slide the battery along guide rails 307 through 312. Once guide rails 307 through 312 have moved past the opposing guide rails 213 through 218 on the portable radiotelephone housing 102, the battery 105 may be lifted clear of the portable radiotelephone 102.
To aid in battery removal, cantilevered spring fingers mechanica~ly load the battery when the battery is in the inserted and loc3~ed position. Refemng again to Fig. 3, two spring fingers in the prefe~ed embodiment are shown as spring fing~rs 320 and 321. When the battery is in place, spring fingers 320 and 321 on the battery housing are deflected downward by tabs 220 and 221 located on the portable radiotelephone housing 102. This dowrlward deflection of ~-~' ~ - , ., , 2~01~'20 OE~X~083R
spring fingers 320 and 321 provide a po~itive displacement of the battery when the latch mechanism 201 is activated by the user. The battery, therefore, begins its disengagement when the user presses the latch mechanism and the battery slides 5 downward enabling guide rails 307 through 312 to partially disengage from guide rails 213 through 218 on the portable radiotelephone housing. The guide rails are formed from raised protuberances on the inside surfaces of the lip edgex which are raised slightly above the battery housing surface 10 which faces the portable radiotelephone. When g~ude rails 307 through 312 are fully disengaged ~rom the portable radiotelephone housing, the battery electrical contacts 325 are disengaged from the battery input electrical contacts 22~ on the portable radiotelephone housing.
15An exploded sectional view of the battery housing is shown in Fig. 4. In this diagram it can be seen that a conventional set of electrochemical batte~ cells 401 may be sandwiched between and captivated by two plastic housing portions 403 and 405 which may be secured together to form an 20 integral batte~ housing package. It should be noted that the latch mechanism 201 is molded as part of the plastic portion 405 and the cantilevered spring fingers 320 and 321 are molded as part of plastic portion 403 to minimize cost and reduce the volume required to implement the latching and positive 25 di~placement features of the present inven~ion. In the preferred embodiment, three guide rails 310, 311 and 312 are located on one side of the battery housing and three guide rails (307, 308 and 309 not shown) are located on the other side of the battery housing. These shor$ened guide rails with gaps in 30 bet veen each enable secure fasteI~ing of the battery housing 105 to the portable radiotelephone housing 102 the entire - length of the batte~ housing 10~ while allowing a short travel - .
2~.01(iZ0 displacement of the battery housing before the battery housing may be disengaged and removed firom the portable radiotelephone 102.
Figure 5 shows a cross-section of housing portion 403 5 which more clearly show6 the spring fingers 320 and 321 as well as guide rails 310 and 307. It can be seen that lip edges 501 and 503, on opposite sides of the battery housing, are raised slight;ly above the plane of the surface of the battery housing which mates with the portable radiotelephone. In the 1 0 cross-section shown in Fig. 5, the protuberances which form guide rails 310 and 307 are visible on the in~ide surface of the raised lips 501 and ~03 respectively. In the preferred embodiment, each spring finger is a cantilevered trapezoidal shaped beam emanating at one end from the housing portion 1 ~ 403 and ending at the opposite end with a rectangular shaped target area 501 or 503 each of which contacts the flanges 220 or 221 of the portable radiotelephone housing. Also in the preferred embodiment, the housing portion 403 is molded from polycarbonate plastic or similar material and each 20 spring finger i~ 0.13cm thick, and having a width at the point of attachment to the housing portion 403 of 0.51cm and narrowing to a target area of 0.13cm. The length of the apring finger is 0.69cm from the point of attachment to the beginning of the rectangular target area. Each spring finger provides 25 0.85 Kg of preload to the battery housing relative to 1 he portable radiotelephone housing.
In summa~y, then, a battery assembly ha. ing an integral latch mechanism, cantilevered spring fingers to provide positive displacement when the latch is disengaged, 30 and reduced travel guide rails to provide short travel between the engaged and disengaged position of the battery housing on a portable radiotelephone has been shown and described.
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Z~01(3Z0 While a particular showing and description i8 contained herein, it iB to be understood that the invention is not to be taken as limited to the specific embodiment herein and that changes and modifications may be made without departing from the true spirit of the invention. It is therefore contemplated to cover the present invention, and any and all such changes and modifications, by the appended claims.
We claim:
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Figure 6 is an isometric ~iew of the latch mechanism of the battery housing of Fig. 3.
I)etailed l:)escli~tion of the Preferred Er~abQ~m~
A portable radiotelephone adapted to be used in a cellular radiotelephone system is shown in Fig. 1. The present invention may be employed in such a portable radiotelephone as well as in other miniature electronic 10 equipment. The illustrated portable unit consists of two external portion3, a body portion 102 and a flip element portion 104, in addition to a detachable battery 105. The drawing of Fig. 1 shows the flip element 104 in an "open" position such that a user of the portable unit may listen via earpiece 106 15 and may speak into a microphone 107. A telephone dial, or -keypad, 110 consists of a plurality of buttons numbered one through zero, #, and *, in a familiar telephone arrangement.
The keypad 110 also has additional function buttons such as "send", "end", "on/ofP', and other buttons associated with 20 telephone number recall.
Since the portable radiotelephone of Fig. 1 is indeed portable, some source of electrical energy is necessary to power the electrical functions of this radiotelephone. The source of this electrical energy is a battery 10~ which is 25 typically implemented as a rechargeable electrochemical cell or ce~ls. It is expected that the user will be aUe to either recharge the battery while the battery is attached to the radio or detach the battery from the radio and charge it separately.
RefelTing now to Fig. 2A, the configuration of the 30 detachable battery 105 can be apprehended in the condition where the batte~r 105 is detached from the portable radiotelephone of Fig. 1. An integral latch mechanism 201 is ~ . . .
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integrally molded on the batte~ housing. (In the preferred embodiment of the present inventinn, the battery housing consists of two halves which are permanently affixed together.
The latch mechanism iB molded into the inside half of the 5 plastic housing). To disengage the battery 106 from the portable radiotelephone 102, the latch mechanism 201 is pushed at the portion visible in Fig 2A thereby causing a torsion beam (not shown) to rotate and cause a catch (not shown) to retract form a pocket 212 in the portable 10 radiotelephone 102. (The portable radiotelephone 102, in a rear elevation view with the battery removed, is ~hown in Fig.
2B). This action releases the battery from its locked position and enables the batte~y housing 105 to be removed form the portable radiotelephone 102. The mating surface of the 15 portable radiotelephone 102 has a pocket or indented slot 212 which is 80 formed and positioned that it engages the catch portion of latch mechanism 201 when the battery housing 105 is located in ita fully attached position. The battery housing is thereby locked in place. Guide rails 213 through 218 extend 20 from a ~urface of the portable radiotelephone housing 102 and are disposed opposite similar g ude rails on the battery housing 105. The guide rails of the battery housing 105 are captivated beneath guide rails 213 through 218 ofthe portable radiotelephone housing 102 when the battery housing 105 is in 25 its operational (and locJ~ed) position. The operational position is, of course, when electrical contacts 225 have contacted mating contacts 325 (not visible) of the battery housing 105.
Also visible ~ Fig. 2B are two molded flanges 220 and 221 which provide surfaces useable for preloading cantilevered 30 springs enabling positive displacement of the battery housing 105 when it is unlocked.
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Lateral slots 233 and 235 in Fig. 2A on opposite sides of the battery housing assembly 105 are located in a position such that the battery alone or the batter,y and portable radiotelephone together may slide into a common battery charging unit and be properly orie~ted relative to the battery charging contacts 239.
The surface of the battery hou~ing 105 which mates to the portable radiotelephone of Fig. 2B is shown in the elevation view of the mating surface of Fig. 3. Tbe latch mechanism 201 1 0 is seen in greater detail and it can be perceived how the catch 301 rotates about the torsion bar 303 when the button portion 305 is pressed by the user to remove the battery. An isometric view of the latch mechanism is shown in Fig. 6. Such a button pressing in a direction out of the plane of the page of Fig, 3 1 5 (and into indented area 227 of the portable radiotelephone housing 102) causes torsion bar 303 to rotate and move catch 301 into the plane of the page of Fig. 3. This motion disengages the catch 301 from slot 212 (shown in Fig. 2B) thereby unlocking the batte~r housing and enabling the user to slide the battery along guide rails 307 through 312. Once guide rails 307 through 312 have moved past the opposing guide rails 213 through 218 on the portable radiotelephone housing 102, the battery 105 may be lifted clear of the portable radiotelephone 102.
To aid in battery removal, cantilevered spring fingers mechanica~ly load the battery when the battery is in the inserted and loc3~ed position. Refemng again to Fig. 3, two spring fingers in the prefe~ed embodiment are shown as spring fing~rs 320 and 321. When the battery is in place, spring fingers 320 and 321 on the battery housing are deflected downward by tabs 220 and 221 located on the portable radiotelephone housing 102. This dowrlward deflection of ~-~' ~ - , ., , 2~01~'20 OE~X~083R
spring fingers 320 and 321 provide a po~itive displacement of the battery when the latch mechanism 201 is activated by the user. The battery, therefore, begins its disengagement when the user presses the latch mechanism and the battery slides 5 downward enabling guide rails 307 through 312 to partially disengage from guide rails 213 through 218 on the portable radiotelephone housing. The guide rails are formed from raised protuberances on the inside surfaces of the lip edgex which are raised slightly above the battery housing surface 10 which faces the portable radiotelephone. When g~ude rails 307 through 312 are fully disengaged ~rom the portable radiotelephone housing, the battery electrical contacts 325 are disengaged from the battery input electrical contacts 22~ on the portable radiotelephone housing.
15An exploded sectional view of the battery housing is shown in Fig. 4. In this diagram it can be seen that a conventional set of electrochemical batte~ cells 401 may be sandwiched between and captivated by two plastic housing portions 403 and 405 which may be secured together to form an 20 integral batte~ housing package. It should be noted that the latch mechanism 201 is molded as part of the plastic portion 405 and the cantilevered spring fingers 320 and 321 are molded as part of plastic portion 403 to minimize cost and reduce the volume required to implement the latching and positive 25 di~placement features of the present inven~ion. In the preferred embodiment, three guide rails 310, 311 and 312 are located on one side of the battery housing and three guide rails (307, 308 and 309 not shown) are located on the other side of the battery housing. These shor$ened guide rails with gaps in 30 bet veen each enable secure fasteI~ing of the battery housing 105 to the portable radiotelephone housing 102 the entire - length of the batte~ housing 10~ while allowing a short travel - .
2~.01(iZ0 displacement of the battery housing before the battery housing may be disengaged and removed firom the portable radiotelephone 102.
Figure 5 shows a cross-section of housing portion 403 5 which more clearly show6 the spring fingers 320 and 321 as well as guide rails 310 and 307. It can be seen that lip edges 501 and 503, on opposite sides of the battery housing, are raised slight;ly above the plane of the surface of the battery housing which mates with the portable radiotelephone. In the 1 0 cross-section shown in Fig. 5, the protuberances which form guide rails 310 and 307 are visible on the in~ide surface of the raised lips 501 and ~03 respectively. In the preferred embodiment, each spring finger is a cantilevered trapezoidal shaped beam emanating at one end from the housing portion 1 ~ 403 and ending at the opposite end with a rectangular shaped target area 501 or 503 each of which contacts the flanges 220 or 221 of the portable radiotelephone housing. Also in the preferred embodiment, the housing portion 403 is molded from polycarbonate plastic or similar material and each 20 spring finger i~ 0.13cm thick, and having a width at the point of attachment to the housing portion 403 of 0.51cm and narrowing to a target area of 0.13cm. The length of the apring finger is 0.69cm from the point of attachment to the beginning of the rectangular target area. Each spring finger provides 25 0.85 Kg of preload to the battery housing relative to 1 he portable radiotelephone housing.
In summa~y, then, a battery assembly ha. ing an integral latch mechanism, cantilevered spring fingers to provide positive displacement when the latch is disengaged, 30 and reduced travel guide rails to provide short travel between the engaged and disengaged position of the battery housing on a portable radiotelephone has been shown and described.
.
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-: :
Z~01(3Z0 While a particular showing and description i8 contained herein, it iB to be understood that the invention is not to be taken as limited to the specific embodiment herein and that changes and modifications may be made without departing from the true spirit of the invention. It is therefore contemplated to cover the present invention, and any and all such changes and modifications, by the appended claims.
We claim:
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Claims (16)
1. A slide-on battery housing for a portable radiotelephone enclosing electrochemical cells and having at least one surface by which the battery housing assembly is attached to the portable radiotelephone, the battery housing comprising:
a latch mechanism attached to the battery housing for locking the battery housing to the portable radiotelephone;
at least one positive displacement spring finger mechanism disposed on the attaching surface of the battery housing and cantilevered in a direction perpendicular to the plane of the attaching surface; and at least two guide rails on the attaching surface of the battery housing for securing the battery housing to the portable radiotelephone further comprising:
(a) lip portions perpendicular to the plane of the attaching surface and on opposing edges of the attaching surface extending at least part of the length of said opposing edges and (b) at least one elongated protrusion on facing surfaces of each said lip portion and extending along each said lip portion parallel to the plane of the attaching surface.
a latch mechanism attached to the battery housing for locking the battery housing to the portable radiotelephone;
at least one positive displacement spring finger mechanism disposed on the attaching surface of the battery housing and cantilevered in a direction perpendicular to the plane of the attaching surface; and at least two guide rails on the attaching surface of the battery housing for securing the battery housing to the portable radiotelephone further comprising:
(a) lip portions perpendicular to the plane of the attaching surface and on opposing edges of the attaching surface extending at least part of the length of said opposing edges and (b) at least one elongated protrusion on facing surfaces of each said lip portion and extending along each said lip portion parallel to the plane of the attaching surface.
2. A battery housing for a portable radiotelephone having at least two mating housing portions securing electrochemical cells therebetween and having at least one surface by which the battery housing may be detachably connected to the portable radiotelephone, the housing comprising:
a latch mechanism attached to one of the mating housing portions for locking the battery housing to the portable radiotelephone further comprising:
(a) an elongate beam element supported at each end to form a torsion bar, (b) a push button lever element disposed perpendicularly to the center line of said torsion bar and between the two ends of said torsion bar, and (c) a catch element lever disposed perpendicularly to the centerline of said torsion bar and between the ends of said torsion bar;
at least one positive displacement spring finger mechanism disposed on the connecting surface of the battery housing; and at least two guide rails on the connecting surface of the battery housing for securing the battery housing to the portable radiotelephone.
a latch mechanism attached to one of the mating housing portions for locking the battery housing to the portable radiotelephone further comprising:
(a) an elongate beam element supported at each end to form a torsion bar, (b) a push button lever element disposed perpendicularly to the center line of said torsion bar and between the two ends of said torsion bar, and (c) a catch element lever disposed perpendicularly to the centerline of said torsion bar and between the ends of said torsion bar;
at least one positive displacement spring finger mechanism disposed on the connecting surface of the battery housing; and at least two guide rails on the connecting surface of the battery housing for securing the battery housing to the portable radiotelephone.
3. A battery housing in accordance with claim 2 further comprising said latch mechanism disposed on a first of the at least two mating housing portions and said positive displacement spring finger mechanism disposed on a second of the at least two mating housing portions.
4. A battery housing in accordance with claim 2 wherein said push button lever element is disposed essentially at the midpoint between the two ends of said torsion bar.
5. A battery housing in accordance with claim 2 wherein said catch element lever is disposed essentially at the midpoint between the ends of said torsion bar,
6. A battery housing in accordance with claim 2 wherein said catch element lever is disposed opposite said push button lever element.
7. A battery housing in accordance with claim 2 wherein the connecting surface of the battery housing is an essentially planar surface.
8. A battery housing in accordance with claim 7 wherein said positive displacement spring finger is further cantilevered in a direction perpendicular to the plane of the connecting surface.
9. A battery housing for a portable transceiver, enclosing electrochemical cells and having at least one surface by which the battery housing assembly is attached to the portable transceiver, the battery housing comprising:
a latch mechanism attached to the battery housing for locking the battery housing to the portable transceiver;
a positive displacement mechanism disposed on the attaching surface of the battery housing; and at least two guide rails on the attaching surface of the battery housing for slideably securing the battery housing to the portable transceiver.
a latch mechanism attached to the battery housing for locking the battery housing to the portable transceiver;
a positive displacement mechanism disposed on the attaching surface of the battery housing; and at least two guide rails on the attaching surface of the battery housing for slideably securing the battery housing to the portable transceiver.
10. A battery housing in accordance with claim 9 wherein said latch mechanism further comprising:
an elongate beam element supported at each end to form a torsion bar;
a push button lever element disposed perpendicularly to the center line of said torsion bar and between the two ends of said torsion bar; and a catch element lever disposed perpendicularly to the centerline of said torsion bar and between the ends of said torsion bar.
an elongate beam element supported at each end to form a torsion bar;
a push button lever element disposed perpendicularly to the center line of said torsion bar and between the two ends of said torsion bar; and a catch element lever disposed perpendicularly to the centerline of said torsion bar and between the ends of said torsion bar.
11. A battery housing in accordance with claim 10 wherein said push button lever element is further disposed essentially at the midpoint between the two ends of said torsion bar.
12. A battery housing in accordance with claim 10 wherein said catch element lever is disposed essentially at the midpoint between the ends of said torsion bar.
13. A battery housing in accordance with claim 10 wherein said catch element lever is disposed opposite said push button lever element.
14. A battery housing in accordance with claim 9 wherein said attaching surface of the battery housing is an essentially planar surface.
15. A battery housing in accordance with claim 14 wherein at least one said guide rail further comprising:
lip portions perpendicular to the plane of the attaching surface and on two opposing edges of the attaching surface extending at least part of the length of said opposing edges and at least one elongated protrusion on facing surfaces of each said lip portion and extending along each said lip portion parallel to the plane of the attaching surface.
lip portions perpendicular to the plane of the attaching surface and on two opposing edges of the attaching surface extending at least part of the length of said opposing edges and at least one elongated protrusion on facing surfaces of each said lip portion and extending along each said lip portion parallel to the plane of the attaching surface.
16. A battery housing in accordance with claim 14 wherein said positive displacement mechanism further comprises a spring finger cantilevered in a direction perpendicular to the plane of the attaching surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/269,853 US4904549A (en) | 1988-11-04 | 1988-11-04 | Battery housing with integral latch and positive displacement apparatus |
| US269,853 | 1988-11-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2001020A1 CA2001020A1 (en) | 1990-05-04 |
| CA2001020C true CA2001020C (en) | 1993-11-09 |
Family
ID=23028922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002001020A Expired - Fee Related CA2001020C (en) | 1988-11-04 | 1989-10-19 | Battery housing with integral latch and positive displacement apparatus |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4904549A (en) |
| EP (2) | EP0691696B1 (en) |
| JP (1) | JPH06105607B2 (en) |
| KR (1) | KR930001527B1 (en) |
| AT (1) | ATE134072T1 (en) |
| AU (1) | AU613546B2 (en) |
| BR (1) | BR8907148A (en) |
| CA (1) | CA2001020C (en) |
| DE (1) | DE68925614D1 (en) |
| DK (1) | DK154290A (en) |
| FI (1) | FI903361A0 (en) |
| GB (1) | GB2224595A (en) |
| IE (2) | IE81064B1 (en) |
| MX (1) | MX166682B (en) |
| NO (1) | NO176498C (en) |
| WO (1) | WO1990005385A1 (en) |
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-
1988
- 1988-11-04 US US07/269,853 patent/US4904549A/en not_active Expired - Fee Related
-
1989
- 1989-10-13 WO PCT/US1989/004819 patent/WO1990005385A1/en not_active Ceased
- 1989-10-13 AU AU46201/89A patent/AU613546B2/en not_active Ceased
- 1989-10-13 KR KR1019900701427A patent/KR930001527B1/en not_active Expired - Fee Related
- 1989-10-13 BR BR898907148A patent/BR8907148A/en not_active Application Discontinuation
- 1989-10-13 FI FI903361A patent/FI903361A0/en not_active IP Right Cessation
- 1989-10-19 CA CA002001020A patent/CA2001020C/en not_active Expired - Fee Related
- 1989-10-27 MX MX018126A patent/MX166682B/en unknown
- 1989-11-02 EP EP95109441A patent/EP0691696B1/en not_active Expired - Lifetime
- 1989-11-02 GB GB8924772A patent/GB2224595A/en not_active Withdrawn
- 1989-11-02 JP JP1285097A patent/JPH06105607B2/en not_active Expired - Lifetime
- 1989-11-02 DE DE68925614T patent/DE68925614D1/en not_active Expired - Lifetime
- 1989-11-02 AT AT89311368T patent/ATE134072T1/en not_active IP Right Cessation
- 1989-11-02 EP EP89311368A patent/EP0367608B1/en not_active Expired - Lifetime
- 1989-11-03 IE IE354489A patent/IE81064B1/en not_active IP Right Cessation
- 1989-11-03 IE IE950965A patent/IE950965L/en unknown
-
1990
- 1990-06-26 DK DK154290A patent/DK154290A/en not_active IP Right Cessation
- 1990-07-02 NO NO902929A patent/NO176498C/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB8924772D0 (en) | 1989-12-20 |
| FI903361A7 (en) | 1990-07-04 |
| NO902929D0 (en) | 1990-07-02 |
| DK154290D0 (en) | 1990-06-26 |
| NO902929L (en) | 1990-07-02 |
| ATE134072T1 (en) | 1996-02-15 |
| IE81064B1 (en) | 2000-01-12 |
| EP0691696A1 (en) | 1996-01-10 |
| NO176498C (en) | 1995-04-12 |
| IE950965L (en) | 1990-05-04 |
| CA2001020A1 (en) | 1990-05-04 |
| DE68925614D1 (en) | 1996-03-21 |
| WO1990005385A1 (en) | 1990-05-17 |
| JPH02183962A (en) | 1990-07-18 |
| KR930001527B1 (en) | 1993-03-02 |
| DK154290A (en) | 1990-06-26 |
| EP0367608A1 (en) | 1990-05-09 |
| AU4620189A (en) | 1990-05-28 |
| IE893544L (en) | 1990-05-04 |
| NO176498B (en) | 1995-01-02 |
| GB2224595A (en) | 1990-05-09 |
| FI903361A0 (en) | 1990-07-04 |
| EP0691696B1 (en) | 1999-04-21 |
| EP0367608B1 (en) | 1996-02-07 |
| MX166682B (en) | 1993-01-27 |
| JPH06105607B2 (en) | 1994-12-21 |
| AU613546B2 (en) | 1991-08-01 |
| US4904549A (en) | 1990-02-27 |
| BR8907148A (en) | 1991-02-26 |
| KR900702585A (en) | 1990-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |