U.S. patent application number 11/855049 was filed with the patent office on 2008-04-03 for heat exchanger and an air conditioner containing the heat exchanger.
Invention is credited to Ai Guo CAO.
Application Number | 20080078186 11/855049 |
Document ID | / |
Family ID | 38795081 |
Filed Date | 2008-04-03 |
United States Patent
Application |
20080078186 |
Kind Code |
A1 |
CAO; Ai Guo |
April 3, 2008 |
HEAT EXCHANGER AND AN AIR CONDITIONER CONTAINING THE HEAT
EXCHANGER
Abstract
A heat exchanger and an indoor thermoelectric air conditioner
containing the heat exchanger, the heat exchanger includes a heat
transfer plate provided with an elevation area for the plate to be
erected on bottom in outer casing of the air conditioner; multiple
heat sink fins parallel with one another are fixed on one side of
the plate at where abutted to the elevation area; free ends of
those fins are inclined downward in a direction facing the
elevation area; a fan blows the air from both sides of each fin to
create airway between any two abutted fins; water of vapors in the
air condensed on surface of each fin fall off downward due to
central gravity thus to separate waterway from airway to warrant
well-facilitate air vane of the air conditioner; and outer surface
of each fin being applied with a hydrophilic film to frustrate
condensation to further insurance of the well-facilitated air
vane.
Inventors: |
CAO; Ai Guo; (Shenzhen City,
CN) |
Correspondence
Address: |
SINORICA, LLC
528 FALLSGROVE DRIVE
ROCKVILLE
MD
20850
US
|
Family ID: |
38795081 |
Appl. No.: |
11/855049 |
Filed: |
September 13, 2007 |
Current U.S.
Class: |
62/3.2 ;
165/133 |
Current CPC
Class: |
F25B 21/02 20130101;
F28F 13/182 20130101; F25B 2321/023 20130101; F28F 2245/02
20130101 |
Class at
Publication: |
62/3.2 ;
165/133 |
International
Class: |
F28F 13/18 20060101
F28F013/18; F25B 21/02 20060101 F25B021/02 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 29, 2006 |
CN |
200610062940.9 |
Feb 14, 2007 |
CN |
200710084877.3 |
Claims
1. A heat exchanger comprising a heat transfer plate; an elevation
area for the heat transfer plate to be erected on a bottom in an
outer casing of an indoor thermoelectric air conditioner being
provided to the heat transfer; multiple heat sink fins arranged in
parallel with one another being fixed on one side of the heat
transfer plate abutted to the elevation area; those heat sink fins
being arranged in parallel with the elevation area; and all free
ends of those heat sink fins being inclined downward in a direction
facing the elevation area.
2. The heat exchanger as claimed in claim 1, wherein those heat
sink fins are fixed by soldering to the heat transfer plate.
3. The heat exchanger as claimed in claim 1 or 2, wherein a layer
of hydrophilic film is disposed on an outer surface of each heat
sink fin.
4. The heat exchanger as claimed in claim 1 or 2, wherein those an
insulation heat transfer layer is disposed on an outer surface of
one side of the heat transfer plate opposite to the side of the
heat transfer plate where those heat sink fins are fixed.
5. The heat exchanger as claimed in claim 4, wherein the heat
transfer plate is made of aluminum, and the insulation heat
transfer layer is related to an aluminum oxide (Al.sub.2O.sub.3)
layer formed using micro-arc oxidization (MAO) method on the
surface of the aluminum heat transfer plate.
6. An indoor thermoelectric air conditioner comprising an outer
casing; a heat exchanger erected on a bottom in an outer casting of
the air conditioner; a heat transfer plate being disposed to the
heat exchanger; an elevation area being disposed to the heat
transfer plate for the heat transfer plate to be erected on the
bottom in the outer casing of the indoor thermoelectric air
conditioner; multiple heat sink fins arranged in parallel with one
another being fixed to one side of the heat transfer plate at where
abutted to the elevation area; the heat exchanger being attached
with a thermoelectric component on a side opposite to the side
fixed with those heat sink fins; a fan being disposed in the outer
casing to blow hot air or cold air radiated from the heat exchanger
to a space where the hot or cold air is needed; the fan in the
outer casing being fixed to a side of the heat transfer plate of
the heat exchanger for the air is blown in a direction in parallel
with a surface of the heat transfer plate and the elevation area of
the heat transfer plate at the same time.
7. The indoor thermoelectric air conditioner as claimed in claim 6,
wherein those heat sink fins are fixed by soldering to the heat
transfer plate.
8. The indoor thermoelectric air conditioner as claimed in claim 6
or 7, wherein a layer of hydrophilic film is disposed on an outer
surface of each heat sink fin.
9. The indoor thermoelectric air conditioner as claimed in claim 6
or 7, wherein those an insulation heat transfer layer is disposed
on an outer surface of one side of the heat transfer plate opposite
to the side of the heat transfer plate where those heat sink fins
are fixed.
10. The indoor thermoelectric air conditioner as claimed in claim
9, wherein the heat transfer plate is made of aluminum, and the
insulation heat transfer layer is related to an aluminum oxide
(Al.sub.2O.sub.3) layer formed using micro-arc oxidization (MAO)
method on the surface of the aluminum heat transfer plate.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention is related to a heat exchanger and an
air conditioner containing the heat exchanger, and more
particularly to an indoor thermoelectric air conditioner containing
the heat exchanger.
[0003] (b) Description of the Prior Art
[0004] A heat exchanger of the prior art mounted in an indoor
thermoelectric air conditioner is provided with a heat transfer
plate, and multiple heat sink fins are fixed on one side of the
heat transfer plate. Those heat sink fins are vertically erected on
the side of the heat transfer plate. The indoor heat exchanger is
connected to a cold air generation chip by means of an insulation
heat transfer plate; and the cold air generated from the chip is
transferred to those heat sink fins. In the prior art, the heat
exchanger is put in erected position for use. A fan is usually
mounted to the upper edge of the heat transfer plate to blow air
crossing those heat sink fins to produce cold air delivered into
the room. Whereas the temperature difference between surfaces of
those heat sink fins and the ambient air is comparatively greater,
vapors in the air will condense on surfaces of those heat sink fins
into small water drips and the fan is located above the heat
transfer plate, the direction of the air blown by the fan is the
same as that those water drips drop. Therefore, those water drips
flowing in a direction of following that the air is blown could
easily blockade the air direction.
SUMMARY OF THE INVENTION
[0005] The primary purpose of the present invention is to provide
an exchanger that warrants well-facilitated air vane and an indoor
thermoelectric air conditioner containing the heat exchanger.
[0006] To achieve the purpose, a heat exchanger of the present
invention is comprised of a heat transfer plate containing an
elevation area for it to be erected on a bottom in an outer casing
of an indoor thermoelectric air conditioners; and multiple heat
sink fins arranged in parallel with one another are fixed on a
surface of a side of the heat transfer plate abutted to the
elevation area. All those heat sink fins are in parallel with the
elevation area and their free ends are inclined downward in the
direction facing the elevation area.
[0007] According to a structure described above, those heat sink
fins are soldered and fixed to the heat transfer plate.
[0008] A hydrophilic film is coated on an outer surface of each
heat sink fin.
[0009] An insulation heat transfer layer is form on an outer
surface of one side of the heat transfer plate opposite to the side
fixed with those heat sink fins.
[0010] The heat transfer plate is made of aluminum and the
insulation heat transfer layer is related to a layer of aluminum
oxide (Al.sub.2O.sub.3) formed on the surface of the heat transfer
plate using micro-arc oxidization (MAO) method.
[0011] The indoor thermoelectric air conditioner of the present
invention is provided with an outer casing; and the heat exchanger
is disposed on a bottom of the outer casing. The heat exchanger is
provided with a heat transfer plate and an elevation area for the
heat exchanger to be erected on a bottom in the outer casing of the
indoor thermoelectric air conditioner. Multiple heat sink fins
arranged in parallel with one another are fixed on one side abutted
to the elevation area of the heat transfer; and a thermoelectric
component is adhered to another side of the heat transfer plate. A
fan is fixed in the outer casing to blow hot air or cold air
radiated from the heat exchanger to a space where the hot or cold
air is needed. Those heat sink fins on the heat exchanger are
arranged in parallel with the elevation area and their free ends
are inclined downward in a direction facing the elevation area. The
fan in the outer casing is fixed to one side of the heat transfer
plate of the heat exchanger; and the air blown by the fan is in a
direction in parallel with the surface of the heat transfer plate
and the elevation area of the heat transfer plate.
[0012] According to a structure described above, those heat sink
fins are soldered and fixed to the heat transfer plate.
[0013] A hydrophilic film is coated on an outer surface of each
heat sink fin.
[0014] An insulation heat transfer layer is form on an outer
surface of one side of the heat transfer plate opposite to the side
fixed with those heat sink fins.
[0015] The heat transfer plate is made of aluminum and the
insulation heat transfer layer is related to a layer of aluminum
oxide (Al.sub.2O.sub.3) formed on the surface of the heat transfer
plate using micro-arc oxidization (MAO) method.
[0016] In comparison with the prior art, the present invention
provides multiple beneficial results including insurance of
well-facilitated air vane. Whereas those heat sink fins of the heat
exchanger of the present invention are arranged in parallel with
its elevation area and all their free ends are inclined downward in
a direction facing the elevation area. Therefore, when the heat
exchanger is in erected portion for use, the fan blows the air from
side of the heat sink fins, and an airway is formed between two
heat sink fins in parallel with each other and any water drip
condensed on the heat sink will flow downward by central gravity
since the heat sink fin is made inclined downward to clear away
from the airway. The hydrophilic film coated on the outer surface
of each heat sink also help frustrate vapors in the air to condense
on the heat sink fin to further warrant well-facilitated air
vane.
[0017] With the heat exchanger mounted in the indoor thermoelectric
air conditioner and the fan disposed on one side of the heat
transfer plate to blow the air towards the surface of the heat
transfer plate and the elevation area of the heat transfer plate,
an airway is formed between two abutted heat sink fins arranged in
parallel with each other and the slanted heat sink fin causes water
condensed from vapors in the air to flow down due to central
gravity to separate the waterway from the airway in warranting
well-facilitated air vane.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 is an exploded view showing a construction of an
indoor thermoelectric air conditioner of the present invention.
[0019] FIG. 2 is a side view showing a construction of a heat
exchanger of the present invention.
[0020] FIG. 3 is a rear view showing the construction of the heat
exchanger of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0021] A heat exchanger of the present invention is comprised of a
heat transfer plate 4 made of aluminum; an elevation area 1 is
disposed to the heat transfer plate 4 for it to be erected on a
bottom in an outer casing 7 of an indoor thermoelectric air
conditioner; multiple heat sink fins 5 arranged in parallel with
one another are fixed on one side of the heat transfer plate 4 at
where abutted to the elevation area 1; those heat sink fins 5 are
fixed by soldering to the heat transfer plate 4 and arranged in
parallel with the elevation area 1 of the heat transfer plate 4.
All free ends of those heat sink fines 5 are inclined downward in a
direction facing the elevation area 1.
[0022] To prevent vapors in the air from being condensed into water
drips on a surface of each heat sink fin 5 when the thermoelectric
air conditioner is generating cold air; a hydrophilic film is
formed on an outer surface of each heat sink fin 5 using
electrophoresis (or by coating nano-ulra hydrophilic liquid).
[0023] A layer of aluminum oxide (Al.sub.2O.sub.3) is formed using
micro-arc oxidization (MAO) method on the aluminum transfer plate 4
on one side opposite to the side fixed with heat sink fins 5 to
improve heat or cold transfer efficiency of the heat exchanger for
saving energy.
[0024] In a preferred embodiment of an indoor thermoelectric air
conditioner of the present invention contains a heat exchanger 3
erected on a bottom in an outer casting 7 of the air conditioner;
and the heat exchanger 3 is attached with a thermoelectric
component (not illustrated) on a side opposite to the side fixed
with those heat sink fins 5. A fan 8 is disposed in the outer
casing 7 to blow hot air or cold air radiated from the heat
exchanger 3 to a space where the hot or cold air is needed. The fan
8 in the outer casing 7 is fixed to a side of the heat transfer
plate 4 of the heat exchanger 3 for the air is blown in a direction
in parallel with a surface of the heat transfer plate 4 and the
elevation area 1 of the heat transfer plate 4 at the same time.
That is, the air is blown by the fan 8 towards sides of those heat
sink fins. An airway is formed between any two abutted heat sink
fins 5 in parallel with each other and a flow direction of water on
a surface of each heat sink fin 5 and that of the air blown by the
fan 8 are different from each other to avoid possible blockade of
the airway due to that the water flows in the same direction as
that of the air. In the preferred embodiment, a drainage pan 6 is
disposed below the heat exchanger 3 to collect water condensed on
the surface of each heat sink fin 5 and discharge the water out of
the outer casing 7 thus to warrant a well-facilitated air vane of
the thermoelectric air conditioner.
[0025] Of course, those heat sink fins 5 are not necessarily
arranged in strictly parallel with one another as long as each and
all of them are inclined downward; and the direction of the air
blown by the fan 8 may be completely in parallel with the surface
of the heat transfer plate 4 and the elevation area of the heat
transfer plate 4 at the same time, or in parallel with the surface
to dissipate heat of each heat sink fin 5 as long as the direction
of the air blown by the fan 8 is different from that of the water
flows on the surface of each heat sink fin 5 to warrant maintaining
a well-facilitated air vane.
* * * * *