US20200015558A1 - Case for a Mobile Electronic Device - Google Patents
Case for a Mobile Electronic Device Download PDFInfo
- Publication number
- US20200015558A1 US20200015558A1 US16/511,857 US201916511857A US2020015558A1 US 20200015558 A1 US20200015558 A1 US 20200015558A1 US 201916511857 A US201916511857 A US 201916511857A US 2020015558 A1 US2020015558 A1 US 2020015558A1
- Authority
- US
- United States
- Prior art keywords
- case
- channels
- protrusions
- back panel
- interior surface
- 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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/003—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable computing devices, e.g. laptop, tablet, netbook, game boy, navigation system, calculator
Definitions
- the invention relates to a case for a mobile electronic device, such as a cellular phone or tablet. More specifically, the invention relates to a protective case that incorporates protrusions to aid in energy dissipation in the event the device is dropped while also managing heat emanating from the device.
- the present invention is a case used in connection with an electronic device, the case comprising a plurality of protrusions that aid in the dissipation of energy, while also forming channels to allow convective transfer of heat.
- FIG. 1 shows the case according to one embodiment.
- FIG. 2 is an alternative view, showing an interior portion of the case.
- FIG. 3 is an alternative view, showing an exterior portion of the case.
- FIG. 4 is an alternative view of the case.
- FIG. 5 is an alternative view of the case.
- FIG. 6 is an alternative view of the case.
- FIG. 7 is an alternative view of the case.
- FIG. 8 is an alternative view of the case.
- FIG. 1 shows the case 100 according to one embodiment.
- the case 100 may be constructed of a polymer, such as polyurethane, polyvinylchloride, or polydimethylsiloxane, rubber, or any similar material.
- the case 100 comprises a back panel 101 surrounded by a band 110 .
- the band 110 may comprise a pair of parallel long edges 111 and a pair of parallel short edges 112 (as shown in FIGS. 6-7 ).
- the back panel 101 has an interior surface 102 and an exterior surface 103 .
- the interior surface 102 is adapted to contact a surface of an electronic device when in use. Further, at least a portion of the interior surface 102 is covered in a plurality of protrusions 104 .
- the exterior surface 103 is flat, allowing the case to easily slide into a user's pocket.
- the exterior surface 103 may include a plurality of protrusions 104 , similar to the interior surface 102 , or a texture.
- FIG. 3 is a cut-out for the lens of the device's camera.
- FIGS. 4-5 show cut-outs in the band 110 for volume and power buttons.
- the protrusions 104 are pyramid-shaped, with the base 105 of the pyramid disposed on the interior surface 102 of the back panel 101 and the apex 106 of the pyramid facing away from the interior surface 102 . While pyramids are described in this example embodiment, other shapes having a wider base 105 than apex 106 can be used. For example, a tetrahedron, frustrum, wedge, or dome could be used. In other words, the protrusions 104 have a wide base 105 adjacent to the interior surface 102 of the back panel 101 with a narrower apex 106 distal from the interior surface 102 .
- the pyramid-shaped protrusions 104 have straight sides with an angle between the side of the protrusion 104 and the interior surface 102 of less than 45 degrees. For a given base of the pyramid, smaller angles will decrease the overall height of the protrusion 104 , allowing for a slimmer case 100 but reducing the distance the protrusions 104 can deflect in the event of a drop or other impact (as will be discussed in greater detail below). As a result, the protrusions 104 may have an angle greater than 45 degrees for greater impact protection, or less than 45 degrees for a slimmer case 100 .
- the apex 106 of the protrusion contacts a surface of the electronic device.
- an acceleration such as the acceleration that occurs when the device falls and contacts the ground or other hard surface
- a surface of the phone will be supported with little or no compression of the protrusions 104 .
- the plurality of protrusions 104 will begin to compress as the kinetic energy of the phone is transferred into the case 100 .
- the protrusions 104 may compress only in the area of the apex 106 .
- the protrusions 104 may compress to the base 105 . Because of the tapered shape of the protrusions 104 , further compression will lead to a greater ability to dissipate the energy of the impact. Stated differently, the shape of the protrusion allows energy dissipation at an increasing rate. The ‘ramp-up’ in dissipation in the protrusions is commensurate with the increase in energy experienced by the electronic device.
- the plurality of protrusions 104 are arranged to create a first set of channels 107 that run from the top to the bottom of the case, parallel to a pair of long edges 111 of the band 110 . More specifically, the first set of channels 107 is the space between a row of protrusions 104 and an adjacent row of protrusions 104 . When used with an electronic device, the channels 107 maintain air space between the interior surface 102 of the case 100 and the back surface of the electronic device. A second set of channels 108 is formed between adjacent rows of protrusions 104 that run parallel to a pair of short edges 112 of the band 110 . Stated differently, channels 107 run from the top to bottom of the case 100 , whereas channels 108 run from side to side.
- Modern electronic devices often expel a significant amount of heat when in use. As such, effective heat management is beneficial for the performance and reliability of the device.
- Some electronic devices are constructed with aluminum, a material that is a good heat conductor, to act as a heat sink.
- protective cases are often constructed of plastics or other polymer materials that are insulators and are less effective at transferring heat. With a tight fitting case, heat generated by the device is trapped at the source and cannot be dissipated into the surrounding environment. Further, localized heating can occur in areas of the electronic device that generate the most heat, such as the battery or processor.
- the first set 107 and second set 108 of channels in the case of the present invention mitigates the risk of heat build-up through a convective heat transfer process within the channels 107 and 108 . That is, hot air in one location can be transported within the space of the first set 107 or second set 108 of channels to cooler areas, preventing localized heating.
- the channels 107 and 108 comprise greater than 25% of the surface area of the interior surface 102 .
- the channels 107 and 108 comprise greater than 50% of the surface area of the interior surface 102 .
- the size or number of protrusions 104 decreases, reducing the ability of the case 100 to absorb shock.
- the design of the case can be varied to balance the tradeoff between impact protection and heat management.
- ridges 113 may be disposed on the interior surface of the band 110 .
- the ridges 113 or raised cross-hatching, provide impact absorption along the edge of the electronic device. Because heat management is not as important along the edge of the device, channels 107 and 108 are not included.
- pyramid-shaped protrusions 104 may be included on the band 110 as well.
Abstract
A case for an electronic device such as a cellular phone or tablet comprising a back panel connected to a band. The interior surface of the back panel includes a plurality of protrusions that dissipate impact energy while also providing a channel to allow for convective heat transfer. The band is connected to the rear panel and also includes protrusions on an interior surface to dissipate impact energy.
Description
- This application claims priority and the benefit of the filing date based on U.S. provisional application No. 62/697,967, filed Jul. 13, 2018, under 35 USC § 119, where the provisional application is hereby incorporated by reference.
- Not applicable.
- The invention relates to a case for a mobile electronic device, such as a cellular phone or tablet. More specifically, the invention relates to a protective case that incorporates protrusions to aid in energy dissipation in the event the device is dropped while also managing heat emanating from the device.
- Electronic devices have become an integral part of the daily activities of many people. With increased use, the risk of dropping the electronic device and causing damage to that device also increases. Coupled with the fact that a cellular phone or tablet can be expensive, many consumers are opting to use protective cases to mitigate the risk of causing accidental damage to their devices. While there are many devices on the market, some provide adequate protection, but are bulky, while others are slimmer, but fail to provide sufficient protection to the device.
- Moreover, as the computing power and battery capacity of devices improve, many mobile devices produce significant heat output. As such, there is a need for more effective heat management to prevent damage to the device. Many cases fail to address heat issues as they are constructed from materials that act as heat insulators or are designed in way that prevents heat transfer. Therefore, it would be advantageous to develop a protective case that provides drop protection while also effectively managing heat output of the device.
- According to embodiments of the present invention is a case used in connection with an electronic device, the case comprising a plurality of protrusions that aid in the dissipation of energy, while also forming channels to allow convective transfer of heat.
-
FIG. 1 shows the case according to one embodiment. -
FIG. 2 is an alternative view, showing an interior portion of the case. -
FIG. 3 is an alternative view, showing an exterior portion of the case. -
FIG. 4 is an alternative view of the case. -
FIG. 5 is an alternative view of the case. -
FIG. 6 is an alternative view of the case. -
FIG. 7 is an alternative view of the case. -
FIG. 8 is an alternative view of the case. -
FIG. 1 shows thecase 100 according to one embodiment. Thecase 100 may be constructed of a polymer, such as polyurethane, polyvinylchloride, or polydimethylsiloxane, rubber, or any similar material. As shown inFIG. 1 , thecase 100 comprises aback panel 101 surrounded by aband 110. Theband 110 may comprise a pair of parallellong edges 111 and a pair of parallel short edges 112 (as shown inFIGS. 6-7 ). Theback panel 101 has aninterior surface 102 and anexterior surface 103. Theinterior surface 102 is adapted to contact a surface of an electronic device when in use. Further, at least a portion of theinterior surface 102 is covered in a plurality ofprotrusions 104. In one embodiment, as shown inFIG. 3 , theexterior surface 103 is flat, allowing the case to easily slide into a user's pocket. However, in alternative embodiments, theexterior surface 103 may include a plurality ofprotrusions 104, similar to theinterior surface 102, or a texture. Further shown inFIG. 3 is a cut-out for the lens of the device's camera. Similarly,FIGS. 4-5 show cut-outs in theband 110 for volume and power buttons. - In the embodiment shown in
FIG. 8 , theprotrusions 104 are pyramid-shaped, with thebase 105 of the pyramid disposed on theinterior surface 102 of theback panel 101 and theapex 106 of the pyramid facing away from theinterior surface 102. While pyramids are described in this example embodiment, other shapes having awider base 105 thanapex 106 can be used. For example, a tetrahedron, frustrum, wedge, or dome could be used. In other words, theprotrusions 104 have awide base 105 adjacent to theinterior surface 102 of theback panel 101 with anarrower apex 106 distal from theinterior surface 102. - In the embodiment shown in
FIG. 8 , the pyramid-shaped protrusions 104 have straight sides with an angle between the side of theprotrusion 104 and theinterior surface 102 of less than 45 degrees. For a given base of the pyramid, smaller angles will decrease the overall height of theprotrusion 104, allowing for aslimmer case 100 but reducing the distance theprotrusions 104 can deflect in the event of a drop or other impact (as will be discussed in greater detail below). As a result, theprotrusions 104 may have an angle greater than 45 degrees for greater impact protection, or less than 45 degrees for aslimmer case 100. - When the
case 100 is used in connection with an electronic device, such as a phone or tablet, theapex 106 of the protrusion contacts a surface of the electronic device. When the electronic device is at rest and not experiencing an acceleration, such as the acceleration that occurs when the device falls and contacts the ground or other hard surface, a surface of the phone will be supported with little or no compression of theprotrusions 104. However, in the event of a fall, as the phone decelerates, the plurality ofprotrusions 104 will begin to compress as the kinetic energy of the phone is transferred into thecase 100. For low energy impacts, theprotrusions 104 may compress only in the area of theapex 106. Conversely, for high energy impacts, theprotrusions 104 may compress to thebase 105. Because of the tapered shape of theprotrusions 104, further compression will lead to a greater ability to dissipate the energy of the impact. Stated differently, the shape of the protrusion allows energy dissipation at an increasing rate. The ‘ramp-up’ in dissipation in the protrusions is commensurate with the increase in energy experienced by the electronic device. - As shown in
FIG. 2 andFIG. 8 , the plurality ofprotrusions 104 are arranged to create a first set ofchannels 107 that run from the top to the bottom of the case, parallel to a pair oflong edges 111 of theband 110. More specifically, the first set ofchannels 107 is the space between a row ofprotrusions 104 and an adjacent row ofprotrusions 104. When used with an electronic device, thechannels 107 maintain air space between theinterior surface 102 of thecase 100 and the back surface of the electronic device. A second set ofchannels 108 is formed between adjacent rows ofprotrusions 104 that run parallel to a pair ofshort edges 112 of theband 110. Stated differently,channels 107 run from the top to bottom of thecase 100, whereaschannels 108 run from side to side. - Modern electronic devices often expel a significant amount of heat when in use. As such, effective heat management is beneficial for the performance and reliability of the device. Some electronic devices are constructed with aluminum, a material that is a good heat conductor, to act as a heat sink. However, protective cases are often constructed of plastics or other polymer materials that are insulators and are less effective at transferring heat. With a tight fitting case, heat generated by the device is trapped at the source and cannot be dissipated into the surrounding environment. Further, localized heating can occur in areas of the electronic device that generate the most heat, such as the battery or processor. The
first set 107 andsecond set 108 of channels in the case of the present invention mitigates the risk of heat build-up through a convective heat transfer process within thechannels first set 107 orsecond set 108 of channels to cooler areas, preventing localized heating. In one embodiment, thechannels interior surface 102. In an alternative embodiment, thechannels interior surface 102. With increasing surface area of thechannels protrusions 104 decreases, reducing the ability of thecase 100 to absorb shock. As a result, the design of the case can be varied to balance the tradeoff between impact protection and heat management. - As shown in
FIGS. 1 and 8 ,ridges 113 may be disposed on the interior surface of theband 110. Theridges 113, or raised cross-hatching, provide impact absorption along the edge of the electronic device. Because heat management is not as important along the edge of the device,channels protrusions 104 may be included on theband 110 as well. - While the disclosure has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modification can be made therein without departing from the spirit and scope of the embodiments. Thus, it is intended that the present disclosure cover the modifications and variations of this disclosure provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A case comprising:
a band comprising a pair of long edges and a pair of short edges;
a back panel,
wherein the back panel is connected to the band at a perimeter of the back panel;
a plurality of protrusions disposed on an interior surface of the back panel;
a first set of channels formed in the space between the plurality of protrusions,
wherein the first set of channels are aligned parallel to the pair of long edges of the band;
a second set of channels formed in the space between the plurality of protrusions,
wherein the second set of channels are aligned parallel to the pair of short edges of the band;
wherein the second set of channels are perpendicular to the first set of channels.
2. The case of claim 1 , wherein the plurality of protrusions are pyramid-shaped.
3. The case of claim 2 , wherein an angle between sides of the plurality of protrusions and the interior surface of the back panel is greater than 45 degrees.
4. The case of claim 2 , wherein an angle between sides of the plurality of protrusions and the interior surface of the back panel is less than 45 degrees.
5. The case of claim 1 , wherein an area of the first set of channels and the second set of channels is greater than 25% of the area of the interior surface of the back panel.
6. The case of claim 1 , wherein an area of the first set of channels and the second set of channels is greater than 50% of the area of the interior surface of the back panel.
7. The case of claim 1 , wherein the plurality of protrusions are tapered, having a wide base adjacent to the interior surface of the back panel and a narrower apex distal from the interior surface of the back panel.
8. The case of claim 1 further comprising ridges disposed on the band.
9. The case of claim 1 , wherein the first set of channels are straight.
10. The case of claim 1 , wherein the second set of channels are straight.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/511,857 US20200015558A1 (en) | 2018-07-13 | 2019-07-15 | Case for a Mobile Electronic Device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862697967P | 2018-07-13 | 2018-07-13 | |
US16/511,857 US20200015558A1 (en) | 2018-07-13 | 2019-07-15 | Case for a Mobile Electronic Device |
Publications (1)
Publication Number | Publication Date |
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US20200015558A1 true US20200015558A1 (en) | 2020-01-16 |
Family
ID=69140325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/511,857 Abandoned US20200015558A1 (en) | 2018-07-13 | 2019-07-15 | Case for a Mobile Electronic Device |
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US (1) | US20200015558A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD893468S1 (en) * | 2019-01-17 | 2020-08-18 | Shenzhen Guangyipeng Technology Co., Ltd. | Protective case for a mobile device |
USD903646S1 (en) * | 2019-04-12 | 2020-12-01 | Shenzhen Lanhe Technologies Co., Ltd. | Cell phone case |
USD907022S1 (en) * | 2019-11-01 | 2021-01-05 | Bin Xiong | Case for mobile electronic device |
USD916071S1 (en) * | 2019-10-15 | 2021-04-13 | Shenzhen Taihengda Technology Co., Ltd. | Mobile phone case |
US20210159933A1 (en) * | 2019-11-25 | 2021-05-27 | Jack Dufelmeier | Mobile device cover with impact absorption structure |
USD963634S1 (en) * | 2021-08-18 | 2022-09-13 | Elago Company Co., Ltd. | Cover for electronic communications device |
USD964978S1 (en) * | 2021-11-02 | 2022-09-27 | Guangzhou Yi SiMei Plastic Products Co., Ltd. | Case for mobile telephone |
USD964975S1 (en) * | 2021-12-17 | 2022-09-27 | Samuel Chong | Mobile phone shell |
USD967084S1 (en) * | 2021-11-15 | 2022-10-18 | Huaruite International Trade (Shenzhen) Co., Ltd. | Case for mobile telephone |
USD967085S1 (en) * | 2021-11-15 | 2022-10-18 | Huaruite International Trade (Shenzhen) Co., Ltd. | Case for mobile telephone |
USD967812S1 (en) * | 2021-09-03 | 2022-10-25 | Zhihua Li | Mobile phone shell |
USD970491S1 (en) * | 2022-01-04 | 2022-11-22 | Weifeng Peng | Phone case |
WO2023041914A1 (en) * | 2021-09-15 | 2023-03-23 | Tech 21 Licensing Limited | A mobile phone case |
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US10148307B2 (en) * | 2016-11-16 | 2018-12-04 | BobjGear, LLC | Electronic device protection apparatus with off-screen swiping interface |
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2019
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KR100955029B1 (en) * | 2009-07-22 | 2010-04-28 | 이상규 | Nonslip case for touch display cellphone using tpu elastomer |
US20140262847A1 (en) * | 2013-03-15 | 2014-09-18 | The Joy Factory, Inc. | Case structures for portable electronic devices |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD893468S1 (en) * | 2019-01-17 | 2020-08-18 | Shenzhen Guangyipeng Technology Co., Ltd. | Protective case for a mobile device |
USD903646S1 (en) * | 2019-04-12 | 2020-12-01 | Shenzhen Lanhe Technologies Co., Ltd. | Cell phone case |
USD916071S1 (en) * | 2019-10-15 | 2021-04-13 | Shenzhen Taihengda Technology Co., Ltd. | Mobile phone case |
USD907022S1 (en) * | 2019-11-01 | 2021-01-05 | Bin Xiong | Case for mobile electronic device |
US20210159933A1 (en) * | 2019-11-25 | 2021-05-27 | Jack Dufelmeier | Mobile device cover with impact absorption structure |
USD963634S1 (en) * | 2021-08-18 | 2022-09-13 | Elago Company Co., Ltd. | Cover for electronic communications device |
USD967812S1 (en) * | 2021-09-03 | 2022-10-25 | Zhihua Li | Mobile phone shell |
WO2023041914A1 (en) * | 2021-09-15 | 2023-03-23 | Tech 21 Licensing Limited | A mobile phone case |
USD964978S1 (en) * | 2021-11-02 | 2022-09-27 | Guangzhou Yi SiMei Plastic Products Co., Ltd. | Case for mobile telephone |
USD967085S1 (en) * | 2021-11-15 | 2022-10-18 | Huaruite International Trade (Shenzhen) Co., Ltd. | Case for mobile telephone |
USD967084S1 (en) * | 2021-11-15 | 2022-10-18 | Huaruite International Trade (Shenzhen) Co., Ltd. | Case for mobile telephone |
USD964975S1 (en) * | 2021-12-17 | 2022-09-27 | Samuel Chong | Mobile phone shell |
USD970491S1 (en) * | 2022-01-04 | 2022-11-22 | Weifeng Peng | Phone case |
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