CN111953081A - Reradiating antenna of integrated piezoelectric cooling system - Google Patents
Reradiating antenna of integrated piezoelectric cooling system Download PDFInfo
- Publication number
- CN111953081A CN111953081A CN201910396960.7A CN201910396960A CN111953081A CN 111953081 A CN111953081 A CN 111953081A CN 201910396960 A CN201910396960 A CN 201910396960A CN 111953081 A CN111953081 A CN 111953081A
- Authority
- CN
- China
- Prior art keywords
- wireless charger
- cooling
- circuit board
- printed circuit
- piezoelectric actuator
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 60
- 230000004907 flux Effects 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to a wireless charger (1, 1a, 1b) for a handheld device, wherein the wireless charger (1, 1a, 1b) comprises a printed circuit board (2), wherein the wireless charger (1, 1a, 1b) further comprises a charging tray (3) and a placement device (4), the placement device (4) of which is arranged on a surface of the charging tray (3), wherein the wireless charger (1, 1a, 1b) further comprises at least one cooling device (5, 6), which cooling device (5, 6) is arranged within the charging tray (3) for cooling the handheld device, characterized in that the at least one cooling device (5, 6) is constructed as a piezoelectric cooling fan comprising at least one piezoelectric actuator (7, 8) for generating a cooling jet.
Description
Technical Field
The present disclosure relates to a wireless charger for a handheld device.
Background
Wireless chargers are known in the art, for example for charging a device being a mobile phone. Wireless charging systems generate power losses in charging and charging devices due to their lower efficiency compared to wired charging. Mobile devices to be charged, in order to preserve their battery life, typically manage the charging process to prevent excessive internal temperatures and thus may significantly extend the charging duration. To mitigate this effect, cooling systems have been introduced to attempt to cool the device to be charged to achieve a wireless charging duration comparable to that achieved by directly connecting a power source.
Disclosure of Invention
The object of the invention is to propose a wireless charger, in particular for a handheld device, which has efficient cooling and which can be very easily integrated into a wireless charger.
The wireless charger for a handheld device according to the invention comprises a printed circuit board and a charging tray and a placement device arranged on a surface of the charging tray, wherein the wireless charger further comprises at least one cooling device arranged within the charging tray for cooling the handheld device, characterized in that the at least one cooling device is constructed as a piezoelectric cooling fan comprising at least one piezoelectric actuator for generating a cooling jet.
A cooling device which is constructed as a piezoelectric cooling fan and which comprises at least one piezoelectric actuator for generating a cooling jet has the advantage that it is completely flat and can be easily integrated into a wireless charger. Furthermore, it is silent and low power consumption due to the piezoelectric properties. With the cooling device according to the invention, efficient cooling can additionally be achieved.
The present invention provides that at least one piezoelectric actuator is directly connected to a Printed Circuit Board (PCB). This may enable efficient cooling due to the close arrangement of the surfaces in contact with the device to be charged.
The invention provides that the cooling device comprises two piezo actuators, wherein one piezo actuator is designed as a first piezo actuator and the other piezo actuator is designed as a second piezo actuator. Cooling efficiency may be improved by increasing the air displacement within the cooling structure.
The invention provides that at least one piezoelectric actuator is arranged on top of the printed circuit board.
The invention provides that at least one piezoelectric actuator is arranged on the bottom of the printed circuit board.
The present invention provides that the first piezoelectric actuator is arranged opposite to the second piezoelectric actuator and wherein the printed circuit board is arranged between the two piezoelectric actuators. Improved cooling efficiency may be achieved via cooling from both sides of the PCB.
The present invention provides that the first piezoelectric actuator is arranged on top or on the bottom at a first end of the printed circuit board, and wherein the second piezoelectric actuator is arranged on top or on the bottom at an opposite end of the printed circuit board. The corresponding arrangement of the phase-shifted piezo actuator operation may also enhance the cooling performance of the cooling device by generating a directed air flux.
The present invention provides a wireless charger comprising at least one wireless charging coil antenna to charge a handheld device, wherein the at least one coil antenna is assembled on a printed circuit board disposed within a charging tray below a placement device.
The present invention provides a wireless charger comprising at least one wireless charging coil antenna to charge a handheld device, wherein the at least one coil antenna is assembled on a printed circuit board on a side opposite a charging tray below the seated device.
The invention particularly provides that the wireless charger comprises at least one wireless charging coil antenna to charge the handheld device, wherein the at least one coil antenna is assembled on the main printed circuit board on the side opposite to the charging tray below the placement device.
The PCB carrying the actuators may be named E-shield PCB. The other PCB may be referred to as the main PCB because it will drive the charging function. The charging coil antenna may be connected to any one of the PCBs. In the illustration, to the main PCB.
The present invention provides that the charger further comprises a cooling structure arranged between the printed circuit board and the mounting device. The cooling structure, by its ability to circulate cool air and have good thermal activity, can further increase the cooling performance of the cooling device.
The present invention provides that the two piezoelectric actuators are controlled in phase opposition to generate an alternating jet flux in the cooling structure comprised by the wireless charger.
The present invention provides that the two piezoelectric actuators are controlled synchronously to generate a unidirectional air flux through the cooling structure comprised by the wireless charger.
The wireless charger according to the invention may be developed as described in the description and/or the claims.
Drawings
The foregoing and other features and advantages of the invention will become apparent to those skilled in the art to which the invention relates upon reading the following description with reference to the accompanying drawings, in which:
fig. 1 shows an exploded view of a first embodiment of a wireless charger according to the present invention;
fig. 2 shows an exploded view of a second embodiment of a wireless charger according to the present invention;
fig. 3 shows an exploded view of a third embodiment of a wireless charger according to the present invention.
Detailed Description
Fig. 1 shows an exploded view of a first embodiment of a wireless charger according to the present invention. This embodiment includes a single actuator as described below.
The wireless charger 1 for a handheld device includes a printed circuit board 2 and a charging tray 3. Further, the wireless charger 1 includes a placement device 4, and the placement device 4 is arranged on the surface of the charging tray 3. A hand-held device (not shown) may be placed on the placement device 4 while charging.
The wireless charger 1 further comprises a cooling device 5, which cooling device 5 is arranged inside the printed circuit board 2 for cooling the hand-held device (not shown). According to the invention, the cooling device 5 is constructed as a piezoelectric cooling fan comprising a piezoelectric actuator 7 for generating a cooling jet. In this embodiment only a single actuator is included.
The wireless charger 1 further comprises a cooling structure 14.
Fig. 2 shows an exploded view of a second embodiment of a wireless charger 1a according to the invention. This embodiment can be seen as a so-called dual piezo actuator solution, i.e. a wireless charger 1a comprising two piezo actuators 7, 8.
The embodiment according to fig. 2 discloses a wireless charger 1a, wherein one piezo actuator 7 is arranged on top of the printed circuit board 2. Another piezoelectric actuator 8 is arranged on the bottom of the printed circuit board 2.
The cooling device 5 therefore comprises two piezo actuators 7, 8, wherein one piezo actuator 7, 8 is designed as a first piezo actuator 7 and the other piezo actuator is designed as a second piezo actuator 8.
The wireless charger 1a also includes a cooling structure 14.
The two piezoelectric actuators 8, 9 may be controlled in phase opposition, for example to generate an alternating jet flux in a cooling structure 14 comprised by the wireless charger 1 a.
The embodiment according to fig. 3 discloses a wireless charger 1b in another embodiment, which can be seen as a so-called dual piezo-actuator solution, i.e. a wireless charger 1b comprising two piezo- actuators 7, 8. The first piezo-electric actuator 7 is arranged on top or on the bottom at a first end 9 of the printed circuit board 2 and the second piezo-electric actuator 8 is arranged on top or on the bottom at an opposite end 10 of the printed circuit board 2.
The two piezoelectric actuators 8, 9 may be controlled synchronously to generate a unidirectional air flux through a cooling structure 14 comprised by the wireless charger 1 b.
The wireless charger 1b also includes a cooling structure 14.
List of reference numerals
1 Wireless charger
1a wireless charger
1b wireless charger
2 printed circuit board
3 charging tray
4 setting device
5 Cooling device
6 Cooling device
7 piezoelectric actuator
8 piezoelectric actuator
9 first end
10 opposite end
11 coil antenna
12-coil antenna
13 coil antenna
14 cooling structure
Claims (12)
1. A wireless charger (1, 1a, 1b) for a handheld device, wherein the wireless charger (1, 1a, 1b) comprises a printed circuit board (2), wherein the wireless charger (1, 1a, 1b) further comprises a charging tray (3) and a placement device (4), which placement device (4) is arranged on a surface of the charging tray (3), wherein the wireless charger (1, 1a, 1b) further comprises at least one cooling device (5, 6), which cooling device (5, 6) is arranged within the charging tray (3) for cooling the handheld device, characterized in that the at least one cooling device (5, 6) is constructed as a piezoelectric cooling fan, which comprises at least one piezoelectric actuator (7, 8) for generating a cooling jet.
2. Wireless charger (1, 1a, 1b) according to claim 1, wherein at least one piezoelectric actuator (7, 8) is directly connected to the printed circuit board (2).
3. The wireless charger (1, 1a, 1b) according to claim 1 or 2, wherein the cooling device (5, 6) comprises two piezoelectric actuators (7, 8), wherein one piezoelectric actuator (7, 8) is constructed as a first piezoelectric actuator (7) and the other piezoelectric actuator is constructed as a second piezoelectric actuator (8).
4. The wireless charger (1, 1a, 1b) according to any of the preceding claims 1 to 3, wherein the at least one piezoelectric actuator (7, 8) is arranged on top of the printed circuit board (2).
5. The wireless charger (1, 1a, 1b) according to any of the preceding claims 1 to 3, wherein the at least one piezoelectric actuator (7, 8) is arranged on the bottom of the printed circuit board (2).
6. Wireless charger (1, 1a, 1b) according to claim 3, wherein the first piezo actuator (7) is arranged opposite to the second piezo actuator (8), and wherein the printed circuit board (2) is arranged between the two piezo actuators (7, 8).
7. The wireless charger (1, 1a, 1b) of any one of claims 3 to 6, wherein the first piezoelectric actuator (7) is arranged on top or on bottom at a first end (9) of the printed circuit board (2), and wherein the second piezoelectric actuator (8) is arranged on top or on bottom at an opposite end (10) of the printed circuit board (2).
8. Wireless charger (1, 1a, 1b) according to any of claims 1 to 7, wherein the wireless charger (1, 1a, 1b) comprises at least one wireless charging coil antenna (11, 12, 13) to charge the handheld device, wherein the at least one wireless charging coil antenna (11, 12, 13) is assembled on a printed circuit board (2), which printed circuit board (2) is arranged within a charging tray (3) below the placement device (4).
9. The wireless charger (1, 1a, 1b) according to any of claims 1 to 8, wherein the wireless charger (1, 1a, 1b) comprises at least one wireless charging coil antenna (11, 12, 13) to charge the handheld device, wherein the at least one wireless charging coil antenna (11, 12, 13) is assembled on a printed circuit board (2) on a side opposite to a charging tray (3) below a placement device (4).
10. The wireless charger (1, 1a, 1b) according to any of claims 1 to 9, wherein the charger (1, 1a, 1b) further comprises a cooling structure (14), the cooling structure (14) being arranged between the printed circuit board (2) and the mounting device (4).
11. The wireless charger (1, 1a, 1b) of claim 6, wherein the two piezoelectric actuators (8, 9) are controlled in phase opposition to generate an alternating jet flux in a cooling structure (14) comprised by the wireless charger (1, 1a, 1 b).
12. The wireless charger (1, 1a, 1b) of claim 7, wherein the two piezoelectric actuators (8, 9) are synchronously controlled to generate a unidirectional air flux through a cooling structure (14) comprised by the wireless charger (1, 1a, 1 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396960.7A CN111953081A (en) | 2019-05-14 | 2019-05-14 | Reradiating antenna of integrated piezoelectric cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396960.7A CN111953081A (en) | 2019-05-14 | 2019-05-14 | Reradiating antenna of integrated piezoelectric cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111953081A true CN111953081A (en) | 2020-11-17 |
Family
ID=73335404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910396960.7A Pending CN111953081A (en) | 2019-05-14 | 2019-05-14 | Reradiating antenna of integrated piezoelectric cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111953081A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588497B1 (en) * | 2002-04-19 | 2003-07-08 | Georgia Tech Research Corporation | System and method for thermal management by synthetic jet ejector channel cooling techniques |
| CN1895010A (en) * | 2003-08-27 | 2007-01-10 | 珀塞尔***公司 | Internal environmental control system and uses thereof |
| CN101354045A (en) * | 2007-07-26 | 2009-01-28 | 英特尔公司 | Piezoelectric fan, method of cooling a microelectronic device using same, and system containing same |
| US20140143784A1 (en) * | 2012-11-20 | 2014-05-22 | Samsung Electronics Company, Ltd. | Controlling Remote Electronic Device with Wearable Electronic Device |
| CN104272481A (en) * | 2012-05-09 | 2015-01-07 | 高通股份有限公司 | Piezoelectric active cooling device |
| CN206411600U (en) * | 2017-02-04 | 2017-08-15 | 西安电子科技大学 | A kind of semiconductor refrigeration radiating shell for ZigBee module |
| EP3340420A1 (en) * | 2016-12-21 | 2018-06-27 | Panasonic Automotive & Industrial Systems Europe GmbH | Wireless charger air cooling system |
| CN207835162U (en) * | 2018-01-30 | 2018-09-07 | 深圳市隆客色电子技术有限公司 | Portable radiotelephone charger |
| CN108551193A (en) * | 2018-06-07 | 2018-09-18 | 成都益睿信科技有限公司 | A kind of novel and multifunctional vehicle carried mobile phone wireless charger |
| CN109728409A (en) * | 2017-10-30 | 2019-05-07 | 法雷奥汽车内部控制（深圳）有限公司 | Induction charging antenna structure and its manufacturing method, wireless charging module |
-
2019
- 2019-05-14 CN CN201910396960.7A patent/CN111953081A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6588497B1 (en) * | 2002-04-19 | 2003-07-08 | Georgia Tech Research Corporation | System and method for thermal management by synthetic jet ejector channel cooling techniques |
| CN1895010A (en) * | 2003-08-27 | 2007-01-10 | 珀塞尔***公司 | Internal environmental control system and uses thereof |
| CN101354045A (en) * | 2007-07-26 | 2009-01-28 | 英特尔公司 | Piezoelectric fan, method of cooling a microelectronic device using same, and system containing same |
| CN104272481A (en) * | 2012-05-09 | 2015-01-07 | 高通股份有限公司 | Piezoelectric active cooling device |
| US20140143784A1 (en) * | 2012-11-20 | 2014-05-22 | Samsung Electronics Company, Ltd. | Controlling Remote Electronic Device with Wearable Electronic Device |
| EP3340420A1 (en) * | 2016-12-21 | 2018-06-27 | Panasonic Automotive & Industrial Systems Europe GmbH | Wireless charger air cooling system |
| CN206411600U (en) * | 2017-02-04 | 2017-08-15 | 西安电子科技大学 | A kind of semiconductor refrigeration radiating shell for ZigBee module |
| CN109728409A (en) * | 2017-10-30 | 2019-05-07 | 法雷奥汽车内部控制（深圳）有限公司 | Induction charging antenna structure and its manufacturing method, wireless charging module |
| CN207835162U (en) * | 2018-01-30 | 2018-09-07 | 深圳市隆客色电子技术有限公司 | Portable radiotelephone charger |
| CN108551193A (en) * | 2018-06-07 | 2018-09-18 | 成都益睿信科技有限公司 | A kind of novel and multifunctional vehicle carried mobile phone wireless charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9006956B2 (en) | Piezoelectric active cooling device | |
| US8013480B2 (en) | Linear vibration motor | |
| EP3280030B1 (en) | System and method for charging receiver devices | |
| US10840789B2 (en) | Vibration generation device and electronic apparatus | |
| US20190314860A1 (en) | Linear vibration motor | |
| US20140028153A1 (en) | Vibration actuator | |
| US20140292144A1 (en) | Piezo vibration module | |
| JP2009004513A (en) | Non-contact power transmission equipment | |
| JP2021097590A (en) | Wireless charging device | |
| JP2010029759A (en) | Piezoelectric fan device | |
| US20200052567A1 (en) | Method of manufacturing magnet assembly, magnet assembly,vibrating motor, and haptic device | |
| KR20140089192A (en) | Soft magnetic sheet, soft magnetic plate and soft magnetic pellet for antenna of wireless power receiving apparatus | |
| US9660172B2 (en) | Vibrator | |
| JPH11298061A (en) | Piezoelectric transformer and its manufacture | |
| JP6192726B2 (en) | Inductive device to limit acoustic vibration | |
| US20110278962A1 (en) | Linear vibrator | |
| JPWO2017168793A1 (en) | Vibration presentation device | |
| CN104282472A (en) | Haptic solenoid and haptic solenoid mounting structure | |
| JP2008123927A (en) | Power supply device | |
| US9647579B2 (en) | Energy harvesting device, method for manufacturing the same, and wireless device including the same | |
| CN111953081A (en) | Reradiating antenna of integrated piezoelectric cooling system | |
| US10886821B2 (en) | Haptic actuator including thermally coupled heat spreading layer and related methods | |
| JP2020036384A (en) | Actuator and electronic device | |
| US10268274B2 (en) | Haptic actuator including coil carried in internal recess and related methods | |
| JP2016096106A (en) | Assembly fixture and assembling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |