New Products Introduction
High Air Flow and Long Life Fan
“San Ace 60L”,“San Ace 80L”,“San Ace 92L”
Kouji Ueno
Atsushi Yanagisawa
Akira Nakayama
Shigekazu Mitomo
Takahisa Toda
Katsumichi Ishihara
Hidetoshi Oobayashi
Osamu Nishikawa
Tatsuya Midorikawa
1. Introduction
In recent years, much longer life and environment-
(1) High air flow
(2) Long life
(3) PWM control function
conscious product are required while market of
information/communication device and recyclable energy
As for new models, high air flow and long life have been
are increasingly expanded. At the same time, in line with
achieved maintaining compatibility with the fan size and
demand for products to have higher performance and be
mounting hole positions of conventional models.
more compact, there is also requirement for equipment to
be higher-density and have more efficient internal cooling.
Moreover, there is growing demand for fans installed in
these products to be maintenance-free and have high air
flow by having even longer life.
Here we introduce features and abilities of three kinds
of high air flow and long life fans “San Ace 60L”, “San Ace
80L” and “San Ace 92L” 9LG, developed in response to this
kind of market demand.
Fig. 1 Profile of new“San Ace 60L”model
2. Background of the Development
Sanyo Denki has produced and sold long life fan, L-type
so far. However, as already mentioned, according to the
longer life of communication devices, reusable energy
devices and environmental business devices, the higher
equipment impedance due to high density equipment and
the greater heat generation, a demand has emerged for
replaceable parts such as the cooling fan to have much
Fig. 2 Profile of new“San Ace 80L”model
longer life and higher air flow in order to enable the
maintenance-free of long-term use devices.
However, it was impossible to increase air flow of the
conventional long life fans in order to respond to these
demands, therefore Sanyo Denki developed the three kinds
of new 9LG fans which achieve both long life and high air
flow.
3. Product Features
Fig. 1, 2, and 3 show photographs of three new models. The
features of these new models are as follows:
21
SANYO DENKI Technical Report No.36 Nov. 2013
Fig. 3 Profile of new“San Ace 92L”model
High Air Flow and Long Life Fan“ San Ace 60L”,”San Ace 80L”,”San Ace 92L”
4. Product Overview
4.3 Characteristics
4.3.1 General characteristics
4.1 Dimensions
The general characteristics of three new models are shown
in Tables 1, 2 and 3.
The dimensions of three new models are shown in Fig. 4,
5 and 6. Fan size and mounting dimensions are compatible
4.3.2 Air flow vs. static pressure characteristics
with ones of conventional long life fan.
The air flow vs. static pressure characteristics of three new
4.2 Expected life
models are shown in Fig. 7, 8 and 9.
The new model has expected life of 180,000 hours
4.3.3 PWM control function
(approx. 20 years) at 60˚C (survival rate of 90% with
continuous operation at rated voltage under free air
The air flow vs. static pressure characteristics at individual
conditions and at normal humidity).
PWM duty cycle of three new models are shown in Fig. 10,
11 and 12.
25±0.5
4±0.3
60±0.5
50±0.3
4±0.3
50±0.3
+50
300 0
Lead wire
UL1430
AWG26
SANYO DENKI
（10）
Rotating direction
60±0.5
8-Ø4.3±0.3
Airflow direction
Fig. 4: Dimensions of new model“San Ace 60L”(unit: mm)
Table 1: General characteristics of new model“San Ace 60L”
Model No.
Rated
voltage
[V]
Operating
voltage
[V]
9LG0612P4S001
9LG0612P4J001
12
10.8
to
13.2
24
21.6
to
26.4
48
36
to
72
9LG0612P4H001
9LG0612P4M001
9LG0624P4S001
9LG0624P4J001
9LG0624P4H001
9LG0624P4M001
9LG0648P4S001
9LG0648P4J001
9LG0648P4H001
9LG0648P4M001
PWM
duty cycle
[%]
Rated
current
[A]
Rated
input
[W]
Rated
speed
[min-1]
100
20
100
20
100
20
100
20
100
20
100
20
100
20
100
25
100
20
100
20
100
20
100
20
0.67
0.06
0.39
0.03
0.17
0.03
0.09
0.03
0.34
0.03
0.19
0.02
0.08
0.02
0.04
0.01
0.18
0.02
0.10
0.02
0.06
0.02
0.04
0.02
8.04
0.72
4.68
0.36
2.04
0.36
1.08
0.36
8.16
0.72
4.56
0.48
1.92
0.48
0.96
0.24
8.64
0.96
4.80
0.96
2.88
0.96
1.92
0.96
11000
2900
8650
850
6150
1350
4200
900
11000
2900
8650
2200
6150
1300
4200
800
11000
2900
8650
2100
6150
1000
4200
650
Note: Speed is 0 min -1 at 0% PWM duty cycle
Max.
air flow
[m3/min] [CFM]
1.40
0.36
1.10
0.10
0.78
0.17
0.53
0.11
1.40
0.36
1.10
0.28
0.78
0.16
0.53
0.10
1.40
0.36
1.10
0.26
0.78
0.12
0.53
0.08
49.4
12.7
38.8
3.5
27.5
6.0
18.7
3.8
49.1
12.7
38.8
9.8
27.5
5.6
18.7
3.5
49.4
12.7
38.8
9.1
27.5
4.2
18.7
2.8
Max.
SPL
static pressure
[dB(A)]
2
[Pa] [inchH O]
300.0
20.8
182.0
1.8
97.0
4.7
45.0
2.0
300.0
20.8
182.0
12.0
97
4.3
45
1.6
305.0
20.8
182.0
10.7
97
2.5
45
1.0
1.204
0.083
0.730
0.007
0.389
0.018
0.180
0.008
1.204
0.083
0.730
0.048
0.389
0.017
0.180
0.006
1.224
0.083
0.730
0.042
0.389
0.010
0.180
0.004
53
20
47
14
35
14
24
14
53
20
47
17
35
14
24
14
53
20
47
17
35
14
24
14
Operating
temperature
[˚C]
Expected
life
[h]
-10
to
+70
180,000
*Input PWM frequency: 25 kHz
SANYO DENKI Technical Report No.36 Nov. 2013
22
4±0.3
71.5±0.3
4±0.3
＋50
300 0
SANYO DENKI
80±0.5
80±0.5
71.5±0.3
25.2±0.5
8-Ø4.3±0.3
Lead wire
UL1430
AWG26
（10）
Rotating direction
Airflow direction
Fig. 5: Dimensions of new model“San Ace 80L”(unit: mm)
Table 2: General characteristics of new model“San Ace 80L”
Rated
voltage
[V]
Operating
voltage
[V]
Rated
input
[W]
1.44
0.48
3.60
0.60
7.20
0.72
1.20
0.48
3.36
0.48
6.72
1.20
Rated
current
[A]
0.12
0.04
0.30
0.05
0.60
0.06
0.05
0.02
0.14
0.02
0.28
0.05
Rated
speed
[min-1]
3,700
1,100
5,500
1,400
7,400
1,800
3,700
1,100
5,500
1,200
7,400
2,400
Max.
air flow
[m3/min] [CFM]
1.03
0.30
1.54
0.39
2.07
0.50
1.03
0.30
1.54
0.33
2.07
0.67
36.3
10.5
54.3
13.7
73.0
17.6
36.3
10.5
54.3
11.6
73.0
23.6
Max.
SPL
static pressure
[dB(A)]
[Pa] [inchH2O]
44.0
3.9
98.0
6.3
177.0
10.4
44
3.9
98
4.6
177.0
18.6
4±0.3
31
13
43
14
49
-10
16
180,000
to
31
+70
13
43
13
49
22
*Input PWM frequency: 25 kHz
82.5±0.3
4±0.3
＋50
300 0
SANYO DENKI
Expected
life
[h]
92±0.5
82.5±0.3
25.2±0.5
8-Ø4.3±0.3
0.17
0.01
0.39
0.02
0.71
0.04
0.17
0.01
0.4
0.01
0.71
0.07
Operating
temperature
[˚C]
92±0.5
PWM
duty cycle
[%]
100
9LG0812P4H001
25
10.8
100
9LG0812P4G001
12
to
25
13.2
100
9LG0812P4J001
20
100
9LG0824P4H001
30
21.6
100
9LG0824P4G001
24
to
20
26.4
100
9LG0824P4J001
20
Note: Speed is 0 min -1 at 0% PWM duty cycle
Model No.
Lead wire
UL1430
AWG26
（10）
Rotating direction
Airflow direction
Fig. 6: Dimensions of new model“San Ace 92L”(unit: mm)
Table 3: General characteristics of new model“San Ace 92L”
PWM
duty cycle
[%]
100
9LG0912P4J001
10.8
9LG0912P4G001
100
12
to
9LG0912P4S001
100
13.2
9LG0912P4H001
100
100
9LG0924P4J001
21.6
9LG0924P4G001
100
24
to
9LG0924P4S001
100
26.4
9LG0924P4H001
100
Note: Speed is 0 min -1 at 0% PWM duty cycle
Model No.
23
Rated
voltage
[V]
Operating
voltage
[V]
Rated
current
[A]
0.42
0.30
0.22
0.15
0.21
0.15
0.11
0.07
SANYO DENKI Technical Report No.36 Nov. 2013
Rated
input
[W]
5.04
3.60
2.64
1.80
5.04
3.60
2.64
1.68
Rated
speed
[min-1]
5000
4400
3850
3150
5000
4400
3850
3150
Max.
air flow
[m3/min] [CFM]
2.20
1.93
1.69
1.38
2.20
1.93
1.69
1.38
77.7
68.2
59.7
48.7
77.7
68.2
59.7
48.7
Max.
SPL
static pressure
[dB(A)]
[Pa] [inchH2O]
105.0
81
62.1
41.6
105.0
81
62.1
41.6
0.42
0.33
0.25
0.17
0.42
0.33
0.25
0.17
Operating
temperature
[˚C]
Expected
life
[h]
44
40
37
-10
32
180,000
to
44
+70
40
37
32
*Input PWM frequency: 25 kHz
High Air Flow and Long Life Fan“ San Ace 60L”,”San Ace 80L”,”San Ace 92L”
1.4
350
1.2
300
S speed
J speed
250
1.0
（inchH2O） （Pa）
12/24 V DC
STATIC PRESSURE
STATIC PRESSURE
（inchH2O） （Pa）
H speed
200
0.8
M speed
0.6
150
0.4
100
0.2
50
1.4
350
1.2
300
1.0
250
0.8
200
0.6
150
0.4
100
0.2
50
0.2
0
0.4
0.6
10
0
0.8
20
1.0
1.2
30
1.4
40
50
PWM DUTY
100%
50%
0
0
12 V DC_S speed
0.2
0
1.6（m3/min）
0.6
10
0
（CFM）
0.4
20
Fig. 7: Air flow vs. static pressure characteristics
of new model“San Ace 60L”
（inchH2O）（Pa）
0.7
0.8
180
0.7
STATIC PRESSURE
STATIC PRESSURE
120
G speed
100
80
0.5
0.4
0.3
60
180
PWM DUTY
100%
120
100
80
60%
60
40
0.1
20
0
0.5
0
1.0
1.5
40
20
60
0
2.5（m3/min）
2.0
20
0
（CFM）
80
20%
0.5
0
（inchH2O） （Pa）
0.45
0.40
G speed
80
STATIC PRESSURE
STATIC PRESSURE
J speed
100
0.35
S speed
60
H speed
0.20
40
100
PWM DUTY
100%
0.35
0.30
0.25
80
60
0.20
0.15
0.10
20
40
50%
20
0.05
0.05
0
（CFM）
80
12 V DC_J speed
120
0.45
0.10
2.5（m3/min）
2.0
60
Fig. 11: Air flow vs. static pressure characteristics
of new model“San Ace 80L”at individual PWM duty cycle
（inchH2O） （Pa）
12/24 V DC
120
0.15
1.5
40
AIR FLOW
Fig. 8: Air flow vs. static pressure characteristics
of new model“San Ace 80L”
0.25
1.0
20
AIR FLOW
0.30
（CFM）
0.2
40
0.40
50
12 V DC_J speed
200
140
0.2
0
40
160
H speed
0.1
1.6（m3/min）
1.4
0.6
J speed
140
0.3
1.2
Fig. 10: Air flow vs. static pressure characteristics
of new model“San Ace 60L”at individual PWM duty cycle
160
0.4
30
（inchH2O）（Pa）
12/24 V DC
200
0.6
0.5
1.0
AIR FLOW
AIR FLOW
0.8
0.8
0
1
0.5
0
10
20
30
1.5
40
50
2.5 （m3/min）
2
60
70
80
（CFM）
AIR FLOW
Fig. 9: Air flow vs. static pressure characteristics
of new model“San Ace 92L”
0
0
1
0.5
0
10
20
30
1.5
40
50
2.5 （m3/min）
2
60
70
80
（CFM）
AIR FLOW
Fig. 12: Air flow vs. static pressure characteristics
of new model“San Ace 92L”at individual PWM duty cycle
SANYO DENKI Technical Report No.36 Nov. 2013
24
5. Comparisons with Conventional
Models
5.2 Comparison of air flow versus static
pressure
Fig. 13, 14, and 15 show air flow versus static pressure
Here we introduce characteristic differences between new
characteristics for conventional model and new model.
The new models have higher cooling performance with
models and conventional models.
1.3 to 1.8 times higher maximum air flow and 1.5 to 3.5 times
5.1 Comparison of expected life
higher maximum static pressure than conventional models.
Tables 4, 5 and 6 show comparison of expected life
and general characteristics about new models versus
performing products for each models.
300
Expected life Max. air flow Max. static pressure Rated input
[h]
[m3/min]
[Pa]
[W]
180,000
1.40
300.0
8.04
100,000
0.78
87.3
2.88
New: 9LG0612P4S001
250
Static pressure [Pa]
Table 4:“San Ace 60L”Comparison of new model
and conventional model
New model
9LG0612P4S001
Conventional model
109L0612G401
2.07
177
7.20
100,000
1.20
50
3.12
1.8x
0
105.0
5.04
100,000
1.69
66.6
3.84
The new models have significantly higher cooling
performance. In addition, compared to conventional
model life of 100,000 hours (approx. 11 years), the life of
new models is 1.8 times longer at 180,000 hours (approx.
20 years) (ambient temperature: 60˚C, survival rate: 90%,
rated voltage continuous operation, free-air state, normal
humidity).
0.4
0.6
0.8
1
Air flow [m3/min]
1.2
1.4
1.6
12 V DC
200
180
160
New: 9LG0812P4J001
140
Static pressure [Pa]
2.20
0.2
Fig. 13: Air flow vs. static pressure characteristics
of“San Ace 60L”
Comparison of new and conventional models
Expected life Max. air flow Max. static pressure Rated input
[h]
[m3/min]
[Pa]
[W]
180,000
Conventional: 109L0612G401
0
Table 6:“San Ace 92L”Comparison of new model
and conventional model
New model
9LG0912P4J001
Conventional model
109L0912S401
3.4x
150
50
Expected life Max. air flow Max. static pressure Rated input
[h]
[m3/min]
[Pa]
[W]
180,000
200
100
Table 5:“San Ace 80L”Comparison of new model
and conventional model
New model
9LG0812P4J001
Conventional model
109L0812S401
12 V DC
350
conventional models. Values are ones of the highest
120
3.5x
100
80
Conventional: 109L0812S401
60
40
20
1.7x
0
0
0.5
1
1.5
Air flow [m3/min]
2
2.5
Fig. 14: Air flow vs. static pressure characteristics
of“San Ace 80L”
Comparison of new and conventional models
25
SANYO DENKI Technical Report No.36 Nov. 2013
High Air Flow and Long Life Fan“ San Ace 60L”,”San Ace 80L”,”San Ace 92L”
12 V DC
120
conventional models.
100
6.1 Impeller
New: 9LG0912P4J001
Static pressure [Pa]
having significantly improved performance compared with
80
In order to reduce load on bearings, the impeller was
made lighter than conventional models by reducing rotor
1.5x
diameter, etc. Also, air flow efficiency was improved by
Conventional: 109L0912S401
60
modifying impeller shape in order to reduce bearing
temperature rise, and as a result, power consumption
40
was also reduced. In addition to these measures, it was
20
according to recent demand, therefore impeller shape was
impossible for conventional models to increase air flow
modified for higher air flow at the same time. Fig. 16 shows
1.3x
0
0
0.5
1
1.5
Air flow [m3/min]
2
2.5
comparison of rotor diameter and impeller shape of the
conventional and new models regarding “San Ace 92L” .
Fig. 15: Air flow vs. static pressure characteristics
of“San Ace 92L”
Comparison of new and conventional models
6. Technology achieving both high air
flow and long life
The new models were designed with achieving high air
flow and long life exceeding those of conventional models.
The three elements achieving higher air flow of fan are as
follows;
(1) Optimization of impeller shape
Fig. 16: Profile of“San Ace 92L”
Comparison of rotor diameter and impeller shape of
conventional (left) and new (right) models
(2) Optimization of frame shape
(3) Adoption of a high speed motor
6.2 Frame
The three elements achieving longer life of fan are as
cast frame integrated bearing house was adopted on new
In the same way as conventional model, aluminum die
follows;
model. This type of frame has high heat conductivity and
(4) Selection of material with minimal aged deterioration
high heat dissipation compared to resin frame, enabling heat
(5) Motor drive circuit derating
of motor to dissioate more efficiently and reduce bearing
(6) Reduction of effects on bearing life
temperature rise.
Th e n e w m o d e l w a s d e s i g n e d w i t h p a r t i c u l a r
optimized in order to achieve higher air flow, adopting spoke
consideration towards reducing effects on bearing life,
shape with minimal air flow loss. By developing optimal
with mainly paying much attention to reducing load on
frame shape as well as modifying impeller shape, air flow
bearings and suppressing bearing temperature rise. In
efficiency was further improved.
Also, shape of frame’ s intake and exhaust apertures were
summary, at the same time as achieving higher air flow
through optimization of impeller shape, attention was paid
to reducing bearing load and high speed motor was adopted
while suppressing motor heat generation and bearing
temperature rise through higher efficiency.
Here we briefly introduce the key things of part/structure
design contributing to the high air flow and long life of the
new models, which achieve both reduced effects on bearing
life and improved cooling performance at the same time as
SANYO DENKI Technical Report No.36 Nov. 2013
26
High Air Flow and Long Life Fan“ San Ace 60L”,”San Ace 80L”,”San Ace 92L”
6.3 Motor and circuit
A higher efficiency motor was achieved by modifying
stator shape and increasing winding space factor, while
drive IC and electronic parts of circuit were also reviewed.
By taking these measures in addition to lightening rotor
Kouji Ueno
Joined Sanyo Denki in 2001.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
(mentioned in 6.1) and reducing rotor diameter, it was
Atsushi Yanagisawa
possible to make the motor smaller. Moreover, lower power
Joined Sanyo Denki in 2006.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
consumption was achieved by adopting a highly efficient
drive circuit and winding temperature rise was successfully
reduced.
By taking these measures, high speed motor and low
power consumption were achieved, and it was possible
to reduce amount of heat transmitted from the motor
winding to bearing, thereby succeeded to reduce bearing
temperature rise.
Akira Nakayama
Joined Sanyo Denki in 2005.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
Shigekazu Mitomo
7. Conclusion
Here we introduced some features and performances of
three newly developed high air flow, long life fans “San Ace
60L”, “San Ace 80L”, and “San Ace 92L”.
The new models have achieved significantly higher
air flow and longer life while maintaining mounting
compatibility with conventional model (L type). This means
that, although less number of fans and less equipment space
Joined Sanyo Denki in 1990.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
Takahisa Toda
Joined Sanyo Denki in 1997.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
are required, these products can contribute to maintenance-
Katsumichi Ishihara
free or reduction in the frequency of fan replacement.
Joined Sanyo Denki in 2001.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
Particularly in regards to equipment with life spans of
approximately 20 years such as power conditioner of
recyclable energy market, adoption of these fan models with
approximately 20 years expected life makes it possible to
Hidetoshi Oobayashi
achieve maintenance-free.
Joined Sanyo Denki in 2005.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
Sanyo Denki believes these high air flow, long life
fans will greatly contribute to the recyclable energy and
environmental business markets.
Osamu Nishikawa
Joined Sanyo Denki in 2009.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
Tatsuya Midorikawa
Joined Sanyo Denki in 2009.
Cooling Systems Division, Design Dept.
Worked on the development and design
of cooling fans.
27
SANYO DENKI Technical Report No.36 Nov. 2013