Transcript Projector - Triz Guide

IID
Project «PROJECTOR»
Institute of
Innovative
Design
FINAL PRESENTATION
SUBMITTED TO THE SANYO Electric Co. Ltd.
PRESENTED BY Institute of Innovative Design
Terms:
Beginning:
Completion:
January 2003
March 2003
IID
Object of Analysis
DLP Projector
Institute of
Innovative
Design
Main Function
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To receive modulated on
brightness and color light
Institute of
Innovative
Design
Project Goals
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Institute of
Innovative
Design
Main Goal
Noise level from projector must be less
then 22 dB(A)
Restrictions
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• Changing Lamp and DLP unit are impossible now.
• Size must be be same (or little larger is acceptable).
Institute of
Innovative
Design
Innovative Technology of Design
Data Gathering
Background information
IID
Institute of
Innovative
Design
Analysis of the Object
Functional and Flow models,
Evolution Trends,
Key Disadvantages, Contradictions
Problem Statement
Trimming problems,
Feature transfer problems,
Key problems
Function Based
Information Gathering
Function oriented
information
ANALYTICAL STAGE
Problem Solution
Engineering Solutions
Supporting Information
Gathering
Supporting information
INFORMATION STAGE
Concept substantiation
Concepts,
Ideas for Further Development
CONCEPTUAL STAGE
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INFORMATION STAGE
Institute of
Innovative
Design
Processing Information
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Innovative
Design
Information stage
Info 1
Source
information
Info 2
Scientific (basic)
information
Analytical stage
Key problems
Info 3
Functional
information
Info 4
Support
information
Conceptual stage
Concepts
Legend:
Information reply
Information request
Information Search
IID
Types of Information Used
INFORMATION
Info 1
Info 2
Info 3
Info 4
INFORMATION
SOURCE
SCIENTIFIC
(BASIC)
INFORMATION
FUNCTIONAL
INFORMATION
SUPPORTING
INFORMATION
 BASIC
SCIENTIFIC
PRINCIPLES OF
OBJECT ACTION
(PHYSICAL,
CHEMICAL,
GEOMETRICAL,
BIOLOGICAL)
 OBJECT
EVOLUTION
 PARAMETERS
CHARACTERIZING THE
OBJECT AND ITS
COMPONENTS
 LEADING
AREAS OF
ENGINEERING
 ENGINEERING
DEVELOPMENTS
AND THEIR
COMPONENTS
(EQUIPMENT,
MATERIALS, ETC.
I.E. DATA FOR
FORMULATION OF
FUNCTIONS)
 RESOURCES
FOR STATED KEY
PROBLEMS
SOLVING
 INITIAL
INFORMATION
FROM CUSTOMER
(DIAGRAMS,
SAMPLES, ETC.)
 DATA OF
COMPETITORS
PRODUCTION
 INFORMATION
ON SPECIFIC
CONCEPTS
 SCIENTIFIC
BASIS,
CALCULATIONS
 REFERENCES
Institute of
Innovative
Design
Table of Information Search
IID
Fragment
Search direction
Leading filds of sience and
technology
Principle, method, device
1. Engineering
function
To create airflow
1.1. Problem:
Fan generate noise at creation of airflow.
1.1.2.
Exinguishing of
sound
by
antisound
Electronic engineering
1.1.3.
Noise
reduction
of
fans
Aerodynamics
Aircraft construction PCs
1.1.4. Decrease
of turbulence of
stream
Wings of airplanes
Stabilizer of missiles
Aircraft construction

Generalized
engineering
function:
System of active noise
control (electronic cirquit)
Screw-propeller engine
CPU Fans
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Innovative
Design
Possible application to the project
To move substance
To applay active noise control system in
order to reduce noise.
To change amount of impellers. To
make impellers of special shape
Lattice wings
To make impelers of fans as littice
wings
Microrelief on impeller of
screw and on fuselage of
airplane. Fibrous covering.
To make impelers of fans with
microrelief or with fibrous covering.
Screw-propeller engine
To apply a coaxial meyhod of instulling
of two impellers.
Outside acoustical effect on
turbulent flow
To apply ultrasonic generator for
structuring of turbulent whirlwind and
lowering of viscosity of air.
IID
Analytical Stage
Institute of
Innovative
Design
Analytical Stage Structure
OVERMODELING
STATEMENT OF PROBLEMS
COMPONENT-STRUCTURAL
ANALYSIS
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Institute of
Innovative
Design
DIRECTION OF
SOLUTION
GENETIC ANALYSIS
FUNCTIONAL-PARAMETRIC
ANALYSIS
INTEGRATION OF ALTERNATIVE SYSTEMS
PARAMETRIC ANALYSIS
DIAGNOSTIC ANALYSIS
CAUSE-AND-EFFECT ANALYSIS
Denotations:
Undesirable effects
STATEMENT OF KEY PROBLEMS
Problems
Component Structural Analysis
Super system elements
Desk
(selling)
Screen
Optical system
Super system elements
Ambient
air
DLP Projector
User
Power supply
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Institute of
Innovative
Design
Cooling
system
Electronic
circuit
Control
unit
Video
signal
Projector
case
Electric
current
Power cord
Intake vents
DLP Block
Power supply
of projector
Air duct
Exhaust vents
DMD Chip
Micromirror
Lamp power
supply
Memory cell
DLP case
Condenser lens
Axial fan
Fan case
Fan rotor
Lamp unit
Lamp
Impellers
DC motor
Color wheel
Lamp case
Motor of
color wheel
Lamp house
Light absorber
Centrifugal fan
Centrifugal fan
case
Centrifugal fan
rotor
Rotor blades
DC motor
Chassis
Function Analysis
Fragment of function table
Element
7. Intake vents
8. Exhaust vents
9. DLP case
10. Micromirror
11. Memory cell
Function
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Institute of
Innovative
Design
Rank
7.1 To direct ambient air
A1
7.2 To decelerate ambient air
H
8.1 To decelerate airflow
H
8.2 To pass out luminous light
H
8.3 To output airflow
A3
9.1 To hold condencer lens
A2
9.2 To decelerate airflow
H
9.3 To hold light absorber
A2
9.4 Not emit out luminous light
A1
9.5 To hold memory cell
A2
9.6 To absorb infrared and ultraviolet of luminous light
H
10.1 To produce modulated light
B
10.2 To absorb luminous light
H
10.3 To modulate luminous light
B
10.4 To heat memory cell
A1
11.1 To decelerate airflow
H
11.2 To heat DLP case
H
Results of functional model
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Institute of
Innovative
Design
Basic
functions
2%
Harmful
functions
46%
52%
Auxiliary
functions
The amount of basic functions providing performance of main useful function is – 4
The amount of auxiliary functions is – 108
The amount of harmful functions is – 94
Diagnostic Analysis
Element for trimming
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Institute of
Innovative
Design
Trimming problems
Rotor blades
1. How to create airflow by centrifugal fan rotor without
rotor blades?
Impellers
2. How to create airflow by axial fan rotor without
impellers?
DC motor of axial fan
DC motor of centrifugal fan
Air flow
3. How to create airflow by electric current without fans?
4. How to cool the elements of DLP projector by
projector case without air flow?
Cause-and-Effect Chains Analysis
Rigid junction of fan
with projector case
Method of transformation
of electric energy
into mechanical
Voltaic arc in
mercury vapor
Transmission of
vibration through projector
components
Rotation of DC
motor rotor
Rotation of rotor
blades (impellers)
in air
Radiation of
IR and UV rays
Absorption
IR and UV rays
Absorption of visible
light by colour filter
Heating of projector
components
Absorption of
visible light
Cooling of projector
components by airflow
Action of electric
current emit
Joule heat
Acceleration
of airflow
Deceleration
of airflow
Inhomogeneity
of airflow
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Institute of
Innovative
Design
Mechanical
noise
Method of creation
of monochrome light
Discrete noise
Modulation of light
by selective reflection
Physical properties
of substances
Internal friction
of airflow (viscosity)
Friction of airflow with
surfaces of projector
components and exhaust vents
Aerodynamic
noise
NOISE
Statement of Key Problems
Key problem
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Amount of key
problems
Direction 1. The noise reduction with the minimum changes in system
3
Direction 2. The noise reduction of discrete noise in fans
2
Direction 3. The change of method of airflow creation
1
Direction 4. The change of method of cooling of projector’s
components
2
Direction 5. The reduction of heating of projector’s components
1
Direction 6. The change of a physical operation principle of projector
5
Institute of
Innovative
Design
IID
List of Problems
Key problem
Concepts solving key
problems
Direction 1. The noise reduction with the minimum changes in system
1.1. How to provide rigid junction of fan-motor case with case of projector, which
does not transmit vibration from fan-motor?
1
1.2. How to provide rotation of DC motor rotor without generation of mechanical
noise?
2
1.3. How to reduce frequency of rotation of fans?
3, 4
Direction 2. The noise reduction of discrete noise in fan
2.1. How to create airflow by centrifugal fan rotor without blades?
5
2.2. How to create airflow by axial fan rotor without impellers?
6
Direction 3. The change of method of airflow creation
3. How to create airflow by electric current without fans?
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Innovative
Design
7
IID
List of Problems
Key problem
Concepts solving key
problems
Direction 4. The change of method of cooling of projector’s components
4.1. How to cool projector’s components without airflow?
4.2. How to cool the elements of DLP projector by case of projector without
airflow?
9, 10
8
Direction 5. The reduction of heating of projector’s components
5. How to reduce absorption of IR and UV radiation by projector’s
components?
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Innovative
Design
11
Direction 6. The change of a physical operation principle of projector
6.1. How to reduce absorption of visible light in projector?
12
6.2. How to reduce a share of IR and UV radiation?
12
6.3 How to generate visible light without voltaic arc in mercury vapor?
12
6.4. How to generate modulated light without selective reflections of radiated
light?
12
6.5. How to generate monochrome radiation without absorption of a part of
visible light?
12
Conceptual Stage
List of Concepts on Directions
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Conceptual direction 1: Reduction of noise from projector with minimum changes in system.
Concept 1. Fastening of the fan to the case of the projector by magnetic supports
Concept 2. The fan bearings with air lubrication.
Concept 3. Cooling intake air by thermoelements with Peltier effect.
Concept 4. Cooling of intake air by adsorption refrigerator by using heat of lamp.
Conceptual direction 2: Rduction of discrete noise of fans.
Concept 5. Screw disk-shaped fan.
Concept 6. Conic spiral fan.
Conceptual direction 3: Change of method of airflow making.
Concept 7. Ionic noiseless fan.
Conceptual direction 4: Change of method of cooling of projector components.
Concept 8. Cooling of lamp unit and DLP block by heat pipes.
Concept 9. Heat removal from projector by flexible heat pipe integrated with power cord.
Concept 10. Cooling of projector elements by thermoionic semiconductor elements.
Conceptual direction 5: Reduction of heating of projector components.
Concept 11. Case of projector made of materials transparent for IR beams.
Conceptual direction 6. Change of physical principle of projector operation.
Concept 12. Laser projector
Institute of
Innovative
Design
Conceptual Direction 1
IID
Institute of
Innovative
Design
REDUCTION OF NOISE FROM PROJECTOR WITH
MINIMUM CHANGES IN SYSTEM
The purpose of the given direction: to reduce noise from a projector
with minimum changes of existing air cooling system and design of fans.
In concepts of the given direction reduction of noise from a projector is
achieved by reduction of mechanical and discrete noise from fans.
Concept 1. FASTENING OF THE FAN TO THE CASE OF THE
PROJECTOR BY MAGNETIC SUPPORTS
2. Conical const magnet
3. Annular const magnet
1. Fan case
S
N
SN
S SN
N
4. Clips
Concept 2. THE FAN BEARINGS WITH AIR LUBRICATION
1. Axle of fan rotor
2.Teflon porous bushing
3
5. Fan case
4. Piezoelectric ceramic
vibration generator
6. Electrodes
Concept 3. COOLING OF INTAKE AIR BY THERMOELEMENTS
WITH PELTIER EFFECT
Top view
2
Room temperature air
7
Vaporization of
a condensate
8
6
Cool air
1
Fan
Fan
10
11
13
12
3
+ 9
1
Side 1 view
11
4
7
2
8
5
Concept 4. COOLING OF INTAKE AIR BY ADSORPTION
REFRIGERATOR BY USING HEAT OF LAMP
15.Fan
16
2
4
1. Condenserreboiler
3. Pipe
5. Adsorbergenerator
8. Flat condenser
part
A
6
B
9
17. Heat
insulator
11
7. Capillaryporous substance
+ CaCl2
10.Heat Pipe
12. Flat condenser
part
14. Flexible heat pipe
13
Conceptual Direction 2
IID
Institute of
Innovative
Design
REDUCTION OF DISCRETE NOISE OF FANS
The purpose of the given direction: is to offer a design of fans with a
minimum level of discrete noise.
In concepts of the given direction the airflow is created by a rotor of fan
without blades and impellers.
Concept 5. THE SCREW DISK-SHAPED FAN
1. Fan case
2. Fan rotor
3. Screw disk
Concept 6. THE CONIC SPIRAL FAN
3. Fan case
2. Spiral cone
4. DC motor
FN
1. Fan rotor
FC
FA
Conceptual Direction 3
IID
Institute of
Innovative
Design
CHANGE OF METHOD OF AIRFLOW CREATING
The purpose of the given direction: to offer a construction of a fan
which does not create mechanical and discrete noise.
In the concept of the given direction the airflow is created without any
mobile parts by an electric field directly.
Concept 7. THE IONIC NOISELESS FAN
Operating mode
4. The positive
grid electrode
2. Needles
1. Negative grid
electrode
Storage mode
5. The movable part of
a case
3. The movlees part of
a case
Conceptual Direction 4
IID
Institute of
Innovative
Design
CHANGE OF METHOD OF COOLING OF
PROJECTOR COMPONENTS
The purpose of the given direction: to offer methods of cooling without
a forced circulation of air.
In concepts of the given direction heat energy emitted in projector by
different methods remove on exterior surfaces of projector components and
is dispersed in surrounding medium.
Concept 8. COOLING OF LAMP UNIT AND DLP BLOCK BY HEAT
PIPES
The cooling system of the lamp unit and DLP block
with the central heat sink with one fan
B-B
(section)
Cappilary–porous
material for working
liquid return
A-A
(section)
2 7
4
6
3
Reflector of lamp
5
Concept 9. HEAT REMOVAL FROM PROJECTOR BY FLEXIBLE
HEAT PIPE INTEGRATED WITH POWER CORD
5. Evaporator part
7. Capillary-porous canal
1. Case
4. Flexible heat pipe
6. Condencer part
3. Wires
2. Contacts
8. Condencer part
Concept 10. COOLING OF PROJECTOR ELEMENTS BY
THERMOIONIC SEMICONDUCTOR ELEMENTS
10
11
13
4. Condencer part
15. Radiator enclosure
7. Air canal
6
9. Thermoionic
element
7.
1. Heat pipe
14
5
12. Element with
Peltier’s effect
3
8.Projector case
2
Conceptual Direction 5
IID
Institute of
Innovative
Design
REDUCTION OF HEATING OF PROJECTOR
COMPONENTS
The purpose of the given direction: to reduce heat absorption by
components of projector.
In the offered concept elements of case are made of substances
transparent for infrared radiation. The heat radiation does not remain inside
a projector, but outputs in a surrounding medium.
Concept 11. CASE OF PROJECTOR MADE OF MATERIALS
TRANSPARENT FOR IR BEAMS
2. Projector
case
3. Lamp unit
1. IR
transparent
window
IR rays
Conceptual Direction 6
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Institute of
Innovative
Design
CHANGE OF PHYSICAL PRINCIPLE OF
PROJECTOR OPERATION
The purpose of the given direction: to change a physical principle of
operation of projector, to solve a maximum quantity of key problems.
In the offered concept the light source with a high efficiency in which
are combined functions of light source with the modulator of radiation.
Concept 12. LASER PROJECTOR
7
2
4. Mirror
8. Chip
1. Red
semiconductor
laser
6
3
5. Micromotor
Concept 12. LASER PROJECTOR WITH MATRICES OF
SEMICONDUCTORS MICROLASERS
4. Semiconductor
micro lasers
3
1. Control
chip
6
7. Mixing
prism
5
2