CA2294623C - Thermo sac - Google Patents
Thermo sac Download PDFInfo
- Publication number
- CA2294623C CA2294623C CA002294623A CA2294623A CA2294623C CA 2294623 C CA2294623 C CA 2294623C CA 002294623 A CA002294623 A CA 002294623A CA 2294623 A CA2294623 A CA 2294623A CA 2294623 C CA2294623 C CA 2294623C
- Authority
- CA
- Canada
- Prior art keywords
- layer
- cover
- glass fibre
- cover according
- sides
- 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 - Lifetime
Links
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract description 19
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims abstract description 5
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 25
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 5
- 239000011490 mineral wool Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 6
- 239000004677 Nylon Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 241000269350 Anura Species 0.000 description 1
- 244000287680 Garcinia dulcis Species 0.000 description 1
- 239000004063 acid-resistant material Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Cell Separators (AREA)
- Primary Cells (AREA)
Abstract
A multi-layer cover for an electrical storage battery is formed from i) an inner acid resistant cover layer, ii) a first layer of glass fibre cloth, iii) an aluminized layer, iv) a first insulating layer which is a thermal insulator with air therein, v) a second insulating layer selected from a) an inorganic insulating material which has a high heat resistant capacity and which retains heat and b) a thermal insulator with air therein, vi) a second layer of glass fibre cloth, and vii) an outer cover layer. Preferably the multi-layer cover is secured by quilting. The cover is effective, acid resistant and has sufficient strength to resist explosion.
Description
niaal~ield The present irve~n~~.on relates to a r~stuova~ale thermal insulator for electrical storage batteries.
Ba~r,~nad to the Inve on 8attsry l~Ia~tkete are known. Pflr exan<plar ~. &.
Eatent 4 ~'~5 502 to Tayls~r digal4s~s a flexible battery anuer providing a h~.~tged top overlying er~clased sids~s far securernent about the batterg. U.S. Patent 3 B25 X47 s,o to Kraals dieclos~ a .battery zover for ~laxzbly aaclosing a battery; together with.openi~tga fax accamrnsdating the battery eleatrioal Qonn~ctions. tf.$.
Patent 4 739 9b~ to Sanders d3acloses a batterar cantait~er with heating rtteads and insulation. U.S.
7.5 Patent h' 054 730 to Crifasi di~~eloses an insulated battery cover sWade from t~la.~d fibCe insulation sandwiched between aluminuat pli$~. U.S, Eatent 4 8?0 855 to Roti et al. d~.scloses battery cover made fsosa a durable insulating material euCh a& quilted nylon 20 fabri.e, v~ith an insulating mataxi.al ~e~ithin the quilted fab~r3.c.
The present invention ig 3.ntecide~d ~.o provide another means far ineulatirig $ battery.
Summary of tE~e Inve~ntidn 25 Aacnadi~gly the present invention pravidas a multi-lager crwer xar an electrical storage batterl~, said saver having, in sequence, i~ an inner acid re~siot~trt aarsr 3ayar, iiy a first layer of gla8e fibre oloCh~
i,ii} an aluminised layer selected frogs alusaintxrn ~oil and 30 alum~.nxead ti~ermoplaetic lsalymeric film, ~,v~ a #irst inauiating ~.~yex whioh is a thermal insulator with a~.ir therein, v7 a eeaostd insulating lager eel~ctad fxw~a ap an inorganic ineulatiag material r~hich has a high heat resistant capacitg and ~rhich rata~.ns heat and b) a 35 thertaal insulator pith air thermin, vii a second Iayer p~ g7.ass fibre cloth, and vi.ir an outer aovex layer.
W any embodicuent the multi-layer oo~rs~r is held together by quilting.
In another ernbadimant the ~l,rst inBUl~tting lacer is _ 2 _ glass fibre insulation.
In yet another embodiment there is a separator layer between the first and second insulating layers.
In a further embodiment the second layer is selected from the group consisting of glass fibre insulation, mineral wool or stone wool.
In yet another embodiment there is a separator layer in a location selected from i) between the first and second insulation layers, ii) between the first layer of glass fibre cloth and the aluminized layer, iii) between the aluminized layer and the first insulation layer and iv) between the second insulation layer and the second layer of glass fibre cloth.
In another embodiment the outer cover is selected from a canvas cover, a fabric cover, a thermoplastic polymeric film cover and a rigid plastic cover. The fabric cover is preferably a high heat resistant cover.
In yet another embodiment the first and second insulation layers are glass fibre insulation and are separated by a~separator layer.
In a further embodiment the separator layer is selected from a) a solar blanket and b) a sheet of thermoplastic polymer, e.g. polypropylene, polyester, nylon, an aluminized sheet of thermoplastic polymer or metal foil.
In yet another embodiment the cover has at least a top, two sides and two ends, and corners formed from adjacent sides and ends, said corners being joined by cooperating fasteners on the sides and ends.
Brief Description of the Drawings Figure 1 shows a cross-section of a wall of a battery cover of the present invention.
Figure 2 shows a cross-section of a wall of a second battery cover of the present invention.
Figure 3 shows a battery with one embodiment of a cover of the present invention.
Figure 4 shows the battery cover of Figure 3, prior to fitting over battery.
Figure 5.shows a battery with a another embodiment of a cover of the present invention.
Figure 6 shows a battery cover of Figure 5, prior 5 to fitting over a battery.
Detailed Description of Preferred Embodiments As indicated hereinabove, the battery cover is a multi-layer,,cover. As will be seen from Figure 1, the mufti-layer cover ll has an inner cover layer 12, a 10 first glass fibre cloth layer 13,- an aluminized layer 14, insulation layers 15 and 16, a second glass fibre cloth layer 17 and an outer cover layer 18.
The cover of Figure 2 is similar to that of Figure 1 except that there is an intermediate separator layer 15 19 sandwiched between insulation layers 15 and 16.
The inner cover layer 12 is preferably made from a .fabric coated with an acid resistant material, e.g.
polyethylene, vinyl polymer, rubber.
First and second glass fibre cloth layers 13 and 17 20 may be of any suitable weave construction and weight. A
simple weave, having a weight of from 4 to 9 oz, preferably about 6 oz, has been found to be suitable and is easily available. Because of the strength of the glass fibre cloth, such cloth tends to prevent rupture 25 of the cover in the event of an explosion adjacent the battery, inside the cover.
The first insulating layer 15 is an insulating layer with a substantial volume of air, which provides the insulating medium. A particulary suitable material 30 for this layer is made with glass fibre insulation.
Preferably the glass fibre insulation has a thickness of from 4 millimetres to 20 millimetres, especially from 5 to 15 millimetres. The aluminized layer 14 may be aluminum foil or aluminized film, e.g. aluminized 35 polyester film, which is preferably adhered to first insulating layer 15.
The second insulating layer 16 may either be an insulating layer with a substantial volume of air or a layer which retains heat and has a high heat resistant capacity. Glass fibre insulation is a preferred insulating layer with a substantial volume of air. One such insulation is sold under the trade mark FIBERGLAS.
Suitable materials with high heat resistant capacity are inorganic materials such as mineral wool or stone wool.
One such second layer is available in Canada under the trade mark ROXUL. Suitable thicknesses for the second insulating layer 16 is from 4 to 20 millimetres, especially from 6 to 15 millimetres. When the second insulating layer is a high heat resistant capacity material, it is intended to slowly heat while the battery is in use and yet is slow to lose heat, e.g.
when power is not being drawn. As the battery is most often placed in an engine compartment, where it is warm, the high heat resistant capacity material will be heated in the engine compartment. When the engine is shut off and the engine compartment becomes cold, second insulating layer 16 will give off heat slowly, by radiation. Some of the heat will be radiated into the first insulating layer 15, thus tending to slow the rate of temperature drop of the battery. As will be apparent this is of particular importance in cold climates for vehicular batteries such as in cars and trucks.
The outer cover 18 is preferably a flexible material such as canvas, thermoplastic polymeric film, or fabric. The flexibility is useful in making the cover fit snugly around the battery. Preferably the outer cover is fire retardant or flameproof.
The outer cover may be made of rigid plastic, for example polypropylene, for covers that are not intended to be removed frequently.
As indicated, there may be a separator layer 19.
Preferably it is between first and second insulating layers 15 and 16, as shown in Figure 2. One such separator layer is a solar blanket. Other such layers are a thermoplastic polymeric film, e.g. polyester film, aluminized films and metal foil, e.g. aluminum foil.
The separator layer tends to keep heat from being drawn from the battery to the outside.
The layers are preferably held together by quilting. The multi-layer cover may be made by cutting the various layers in a shape necessary to make the cover, e.g. as shown in Figures 4 and 6. It is preferred that the glass fibre insulation layers have an R-rating from R-12 to R-30 prior to being quilted.
Such insulation may be from 20 millimetres to 10 centimetres thick before quilting. After quilting the glass fibre insulation is generally compressed to a thickness from 4 to 20 millimetres. This allows the cover to be compact and yet provide the necessary insulating value. The battery cover is preferably made in a cruciform shape such as shown in Figures 4 and 6.
The side walls or end walls have securement devices to hold the cover .in place when placed around the battery.
The securement devices may be loop and hook fasteners, e.g. available under the trade mark Velcro, or by other fasteners such as snap press fasteners. The fasteners may be of metal or a non-corroding material such as polypropylene, polyethylene or nylon.
As will be seen in Figure 3, the battery 21 comprises a case (not shown) which contains the necessary chemicals, anodes and cathodes. Battery 21 has two posts 23, one positive and one negative for connection to electrical devices, e.g a starter and distributor (not shown), by electrical wires 24.
Battery 21 is blanketed with cover 25 which has apertures 26 to permit posts 23 to be connected with wires 24. Side panel 27 and end panel 28 are secured by flaps 29 with fasteners attached.
Figure 4 shows one configuration for the battery cover. It comprises a top panel 30 and two side panels 27 and two end panels 28. Depending on the type of battery, apertures 26 may be in the top panel as shown in Figure 4, or may be in one of the side panels. The apertures are preferably circular. The side or end panels 27 and 28 may have flaps 29 upon which at least one fastener, e.g. 37, 28 is secured. After installation on a battery (not shown) the side and end panels may be joined together with fasteners 37 and 38.
Fasteners 37 and 38 may be clip and loop, snap press fasteners, hook and loop (e. g. Velcro~ fasteners).
In Figure 5, it will be seen that the battery wires 40 exit from the battery cover 41 between end panel 42 and flaps 43. Battery cover 41 has a top panel 44 and side panels 45. Figure 6 shows a configuration for battery cover 41. It comprises a top panel 44, two side panels 45, two end panels 42 and bottom 46. The side or end panels 42 and 45 and bottom may have flaps 43 upon which at least one part of fasteners 48 are secured.
After installation on a battery (not shown)the side and end panels may be joined together with fasteners 48.
Fasteners 48 may be clip and loop, snap press fasteners, hook and loop (e. g. Velcro~ fasteners).
The present invention provides a cover which assists in increasing battery life from less exposure to ambient temperature fluctuations, sustaining better cold cranking temperatures. In one experiment, a battery cover was made with an acid resistant fabric inner cover and a fire retardant fabric outer cover. Between the inner and outer covers was a glass fibre cloth envelope with insulating material inside. The insulating material was one layer of glass fibre insulation backed with aluminized film and another layer of glass fibre insulation. The battery cover was quilted. The battery cover was used in the engine compartment of an automobile over a one week period when ambient temperatures were below -10°C. From 4-8 hours after the automobile had been left without the motor running the temperature inside the cover was from 5 to 10°C higher than in the engine compartment.
Ba~r,~nad to the Inve on 8attsry l~Ia~tkete are known. Pflr exan<plar ~. &.
Eatent 4 ~'~5 502 to Tayls~r digal4s~s a flexible battery anuer providing a h~.~tged top overlying er~clased sids~s far securernent about the batterg. U.S. Patent 3 B25 X47 s,o to Kraals dieclos~ a .battery zover for ~laxzbly aaclosing a battery; together with.openi~tga fax accamrnsdating the battery eleatrioal Qonn~ctions. tf.$.
Patent 4 739 9b~ to Sanders d3acloses a batterar cantait~er with heating rtteads and insulation. U.S.
7.5 Patent h' 054 730 to Crifasi di~~eloses an insulated battery cover sWade from t~la.~d fibCe insulation sandwiched between aluminuat pli$~. U.S, Eatent 4 8?0 855 to Roti et al. d~.scloses battery cover made fsosa a durable insulating material euCh a& quilted nylon 20 fabri.e, v~ith an insulating mataxi.al ~e~ithin the quilted fab~r3.c.
The present invention ig 3.ntecide~d ~.o provide another means far ineulatirig $ battery.
Summary of tE~e Inve~ntidn 25 Aacnadi~gly the present invention pravidas a multi-lager crwer xar an electrical storage batterl~, said saver having, in sequence, i~ an inner acid re~siot~trt aarsr 3ayar, iiy a first layer of gla8e fibre oloCh~
i,ii} an aluminised layer selected frogs alusaintxrn ~oil and 30 alum~.nxead ti~ermoplaetic lsalymeric film, ~,v~ a #irst inauiating ~.~yex whioh is a thermal insulator with a~.ir therein, v7 a eeaostd insulating lager eel~ctad fxw~a ap an inorganic ineulatiag material r~hich has a high heat resistant capacitg and ~rhich rata~.ns heat and b) a 35 thertaal insulator pith air thermin, vii a second Iayer p~ g7.ass fibre cloth, and vi.ir an outer aovex layer.
W any embodicuent the multi-layer oo~rs~r is held together by quilting.
In another ernbadimant the ~l,rst inBUl~tting lacer is _ 2 _ glass fibre insulation.
In yet another embodiment there is a separator layer between the first and second insulating layers.
In a further embodiment the second layer is selected from the group consisting of glass fibre insulation, mineral wool or stone wool.
In yet another embodiment there is a separator layer in a location selected from i) between the first and second insulation layers, ii) between the first layer of glass fibre cloth and the aluminized layer, iii) between the aluminized layer and the first insulation layer and iv) between the second insulation layer and the second layer of glass fibre cloth.
In another embodiment the outer cover is selected from a canvas cover, a fabric cover, a thermoplastic polymeric film cover and a rigid plastic cover. The fabric cover is preferably a high heat resistant cover.
In yet another embodiment the first and second insulation layers are glass fibre insulation and are separated by a~separator layer.
In a further embodiment the separator layer is selected from a) a solar blanket and b) a sheet of thermoplastic polymer, e.g. polypropylene, polyester, nylon, an aluminized sheet of thermoplastic polymer or metal foil.
In yet another embodiment the cover has at least a top, two sides and two ends, and corners formed from adjacent sides and ends, said corners being joined by cooperating fasteners on the sides and ends.
Brief Description of the Drawings Figure 1 shows a cross-section of a wall of a battery cover of the present invention.
Figure 2 shows a cross-section of a wall of a second battery cover of the present invention.
Figure 3 shows a battery with one embodiment of a cover of the present invention.
Figure 4 shows the battery cover of Figure 3, prior to fitting over battery.
Figure 5.shows a battery with a another embodiment of a cover of the present invention.
Figure 6 shows a battery cover of Figure 5, prior 5 to fitting over a battery.
Detailed Description of Preferred Embodiments As indicated hereinabove, the battery cover is a multi-layer,,cover. As will be seen from Figure 1, the mufti-layer cover ll has an inner cover layer 12, a 10 first glass fibre cloth layer 13,- an aluminized layer 14, insulation layers 15 and 16, a second glass fibre cloth layer 17 and an outer cover layer 18.
The cover of Figure 2 is similar to that of Figure 1 except that there is an intermediate separator layer 15 19 sandwiched between insulation layers 15 and 16.
The inner cover layer 12 is preferably made from a .fabric coated with an acid resistant material, e.g.
polyethylene, vinyl polymer, rubber.
First and second glass fibre cloth layers 13 and 17 20 may be of any suitable weave construction and weight. A
simple weave, having a weight of from 4 to 9 oz, preferably about 6 oz, has been found to be suitable and is easily available. Because of the strength of the glass fibre cloth, such cloth tends to prevent rupture 25 of the cover in the event of an explosion adjacent the battery, inside the cover.
The first insulating layer 15 is an insulating layer with a substantial volume of air, which provides the insulating medium. A particulary suitable material 30 for this layer is made with glass fibre insulation.
Preferably the glass fibre insulation has a thickness of from 4 millimetres to 20 millimetres, especially from 5 to 15 millimetres. The aluminized layer 14 may be aluminum foil or aluminized film, e.g. aluminized 35 polyester film, which is preferably adhered to first insulating layer 15.
The second insulating layer 16 may either be an insulating layer with a substantial volume of air or a layer which retains heat and has a high heat resistant capacity. Glass fibre insulation is a preferred insulating layer with a substantial volume of air. One such insulation is sold under the trade mark FIBERGLAS.
Suitable materials with high heat resistant capacity are inorganic materials such as mineral wool or stone wool.
One such second layer is available in Canada under the trade mark ROXUL. Suitable thicknesses for the second insulating layer 16 is from 4 to 20 millimetres, especially from 6 to 15 millimetres. When the second insulating layer is a high heat resistant capacity material, it is intended to slowly heat while the battery is in use and yet is slow to lose heat, e.g.
when power is not being drawn. As the battery is most often placed in an engine compartment, where it is warm, the high heat resistant capacity material will be heated in the engine compartment. When the engine is shut off and the engine compartment becomes cold, second insulating layer 16 will give off heat slowly, by radiation. Some of the heat will be radiated into the first insulating layer 15, thus tending to slow the rate of temperature drop of the battery. As will be apparent this is of particular importance in cold climates for vehicular batteries such as in cars and trucks.
The outer cover 18 is preferably a flexible material such as canvas, thermoplastic polymeric film, or fabric. The flexibility is useful in making the cover fit snugly around the battery. Preferably the outer cover is fire retardant or flameproof.
The outer cover may be made of rigid plastic, for example polypropylene, for covers that are not intended to be removed frequently.
As indicated, there may be a separator layer 19.
Preferably it is between first and second insulating layers 15 and 16, as shown in Figure 2. One such separator layer is a solar blanket. Other such layers are a thermoplastic polymeric film, e.g. polyester film, aluminized films and metal foil, e.g. aluminum foil.
The separator layer tends to keep heat from being drawn from the battery to the outside.
The layers are preferably held together by quilting. The multi-layer cover may be made by cutting the various layers in a shape necessary to make the cover, e.g. as shown in Figures 4 and 6. It is preferred that the glass fibre insulation layers have an R-rating from R-12 to R-30 prior to being quilted.
Such insulation may be from 20 millimetres to 10 centimetres thick before quilting. After quilting the glass fibre insulation is generally compressed to a thickness from 4 to 20 millimetres. This allows the cover to be compact and yet provide the necessary insulating value. The battery cover is preferably made in a cruciform shape such as shown in Figures 4 and 6.
The side walls or end walls have securement devices to hold the cover .in place when placed around the battery.
The securement devices may be loop and hook fasteners, e.g. available under the trade mark Velcro, or by other fasteners such as snap press fasteners. The fasteners may be of metal or a non-corroding material such as polypropylene, polyethylene or nylon.
As will be seen in Figure 3, the battery 21 comprises a case (not shown) which contains the necessary chemicals, anodes and cathodes. Battery 21 has two posts 23, one positive and one negative for connection to electrical devices, e.g a starter and distributor (not shown), by electrical wires 24.
Battery 21 is blanketed with cover 25 which has apertures 26 to permit posts 23 to be connected with wires 24. Side panel 27 and end panel 28 are secured by flaps 29 with fasteners attached.
Figure 4 shows one configuration for the battery cover. It comprises a top panel 30 and two side panels 27 and two end panels 28. Depending on the type of battery, apertures 26 may be in the top panel as shown in Figure 4, or may be in one of the side panels. The apertures are preferably circular. The side or end panels 27 and 28 may have flaps 29 upon which at least one fastener, e.g. 37, 28 is secured. After installation on a battery (not shown) the side and end panels may be joined together with fasteners 37 and 38.
Fasteners 37 and 38 may be clip and loop, snap press fasteners, hook and loop (e. g. Velcro~ fasteners).
In Figure 5, it will be seen that the battery wires 40 exit from the battery cover 41 between end panel 42 and flaps 43. Battery cover 41 has a top panel 44 and side panels 45. Figure 6 shows a configuration for battery cover 41. It comprises a top panel 44, two side panels 45, two end panels 42 and bottom 46. The side or end panels 42 and 45 and bottom may have flaps 43 upon which at least one part of fasteners 48 are secured.
After installation on a battery (not shown)the side and end panels may be joined together with fasteners 48.
Fasteners 48 may be clip and loop, snap press fasteners, hook and loop (e. g. Velcro~ fasteners).
The present invention provides a cover which assists in increasing battery life from less exposure to ambient temperature fluctuations, sustaining better cold cranking temperatures. In one experiment, a battery cover was made with an acid resistant fabric inner cover and a fire retardant fabric outer cover. Between the inner and outer covers was a glass fibre cloth envelope with insulating material inside. The insulating material was one layer of glass fibre insulation backed with aluminized film and another layer of glass fibre insulation. The battery cover was quilted. The battery cover was used in the engine compartment of an automobile over a one week period when ambient temperatures were below -10°C. From 4-8 hours after the automobile had been left without the motor running the temperature inside the cover was from 5 to 10°C higher than in the engine compartment.
Claims (13)
1. A multi-layer cover for an electrical storage battery, said cover having in sequence, i) an inner acid resistant cover layer, ii) a first layer of glass fibre cloth, iii) an aluminized layer selected from aluminum foil and aluminized thermoplastic polymeric film, iv) a first insulating layer which is a thermal insulation with air therein, v) a second insulating layer selected from a) an inorganic insulating material which has a high heat resistant capacity and which retains heat and b) a thermal insulator with air therein, vi) a second layer of glass fibre cloth, and vii) an outer cover layer.
2. A cover according Claim 1 wherein the first insulating layer is glass fibre insulation.
3. A cover according to Claim 1 wherein the second insulating layer is selected from the group consisting of glass fibre insulation, mineral wool, and stone wool.
4. A cover according to Claim 2 wherein the second insulating layer is selected from the group consisting of glass fibre insulation, mineral wool and stone wool.
5. A cover according to Claim 4 wherein there is a separator layer between the first and second insulating layers.
6. A cover according to Claim 5 wherein the first and second insulating layers are glass fibre insulation.
7. A cover according to Claim 5 wherein the separator layer is selected from a) a solar blanket and b) a sheet of thermoplastic polymer.
8. A cover according to Claim 2 wherein the multi-layer cover is held together by quilting.
9. A cover according to Claim 3 wherein the multi-layer cover is held together by quilting.
10. A cover according to Claim 5 wherein the multi-layer cover is held together by quilting.
11. A cover according to Claim 8 wherein the cover has at least a top, two sides and two ends, and corners formed from adjacent sides and ends, said corners being joined by cooperating fasteners on the sides and ends.
12. A cover according to Claim 9 wherein the cover has at least a top, two sides and two ends, and corners formed from adjacent sides and ends, said corners being joined by cooperating fasteners on the sides and ends.
13. A cover according to Claim 10 wherein the cover has at least a top, two sides and two ends, and corners formed from adjacent sides and ends, said corners being joined by cooperating fasteners on the sides and ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002294623A CA2294623C (en) | 1999-12-31 | 1999-12-31 | Thermo sac |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002294623A CA2294623C (en) | 1999-12-31 | 1999-12-31 | Thermo sac |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2294623A1 CA2294623A1 (en) | 2001-06-30 |
| CA2294623C true CA2294623C (en) | 2007-04-17 |
Family
ID=4165026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002294623A Expired - Lifetime CA2294623C (en) | 1999-12-31 | 1999-12-31 | Thermo sac |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2294623C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2502801B (en) | 2012-06-07 | 2014-11-26 | Jaguar Land Rover Ltd | Insulating sock of a traction battery |
| DE102015224307A1 (en) * | 2015-12-04 | 2017-06-08 | Robert Bosch Gmbh | Housing for battery systems |
| CN109986850B (en) * | 2017-12-29 | 2021-11-02 | 宁德时代新能源科技股份有限公司 | Lithium ion battery and aluminum plastic film |
-
1999
- 1999-12-31 CA CA002294623A patent/CA2294623C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2294623A1 (en) | 2001-06-30 |
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| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20191231 |
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| MKEX | Expiry |
Effective date: 20191231 |