FIELD
[0002] The present application relates to the technical field of heat exchanging, and in
particular to a heat exchanger.
BACKGROUND
[0003] A heat exchanger typically includes multiple heat-exchanging plates stacked in layers.
Each of the heat-exchanging plates is provided with a flange on the periphery thereof,
and the flanges of the adjacent heat-exchanging plates are sealedly arranged. The
multiple heat-exchanging plates, which are arranged separately, need to be stacked
one by one during assembly. Due to a large number of heat-exchanging plates, an assembly
mistake may occur.
SUMMARY
[0004] An object of the present application is to provide a heat exchanger that is easy
for assembling.
[0005] A heat exchanger is provided according to an embodiment of the present application,
including a heat-exchanging plate, and the heat-exchanging plate includes: a first
plate, a second plate, and a third plate, and the second plate is located between
the first plate and the third plate, a first direction is defined, the heat exchanger
includes a first side portion and a second side portion in the first direction, the
heat exchanger further includes a first connecting portion and a second connection
portion, and the first connecting portion is located on the first side portion and
the second connection portion is located on the second side portion, and the first
connecting portion, the first plate, and the second plate are formed into an integrated
structure, and the second connection portion, the second plate and the third plate
are formed into an integrated structure.
[0006] A first flow passage is formed between the first plate and the second plate, the
first plate and the second plate are arranged in a sealed manner, and an area sealed
by the first plate and the second plate at least encloses the first flow passage,
and a second flow passage is formed between the second plate and the third plate,
the second plate and the third plate are arranged in a sealed manner, and an area
sealed by the second plate and the third plate at least encloses the second flow passage.
[0007] In the embodiments above, the first connecting portion, the first plate, the second
plate, the second connecting portion and the third plate are formed into an integrated
structure. The first connecting portion is located on the first side portion of the
heat exchanger, and the second connecting portion is located on the second side portion
of the heat exchanger, and at least a part of the heat exchanger can be formed by
folding one single plate, which is beneficial for assembling.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008]
FIG. 1 is a schematic perspective view of a heat exchanger according to an embodiment
of the present application;
FIG. 2 is a schematic structural view of the heat exchanger in FIG. 1 in one direction;
FIG. 3 is a schematic cross-sectional structural view along a line A-A in FIG. 1;
FIG. 4 is a schematic partially enlarged view at C in FIG. 3;
FIG. 5 is a schematic partially enlarged view at D in FIG. 3;
FIG. 6 is a schematic cross-sectional structural view along a line B-B in FIG. 1;
FIG. 7 is a schematic partially enlarged view at E in FIG. 6;
FIG. 8 is a schematic structural view of a heat-exchanging plate before assembling
the heat exchanger according to the present application;
FIG. 9 is a schematic perspective view of a first plate of the heat exchanger according
to the present application in one direction;
FIG. 10 is a schematic perspective view of the first plate of the heat exchanger according
to the present application in another direction;
FIG. 11 is a schematic perspective view of a second plate of the heat exchanger according
to the present application in one direction;
FIG. 12 is a schematic perspective view of the second plate of the heat exchanger
according to the present application in another direction; and
FIG. 13 is a schematic cross-sectional structural view of a heat exchanger according
to another embodiment of the present application.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0009] The embodiments will be described with reference to the accompany drawings. In order
to fully understand the present application, specific details are mentioned in the
following description. However, those skilled in the art should understand that the
specific components, devices, and features illustrated in the drawings and described
herein are merely exemplary, which should not be regarded as a limit.
[0010] As shown in FIG. 1 to FIG. 13, a heat exchanger 1 includes a heat-exchanging plate
2, which includes a first plate 10, a second plate 20, and a third plate 30. The second
plate 20 is located between the first plate 10 and the third plate 30. A first direction
is defined, and the heat exchanger 1 has a first side portion 110 and a second side
portion 120 in the first direction. As shown in FIG. 1 to FIG. 3, a direction F is
indicated as the first direction, and the first plate 10 and the second plate 20 are
connected by a first connecting portion 50 on the first side portion 110 of the heat
exchanger 1. The first connecting portion 50, the first plate 10, and the second plate
20 are formed into an integrated structure. The second plate 20 and the third plate
30 are connected by a second connecting portion 60 on the second side portion 120
of the heat exchanger 1. The second connecting part 60, the second plate 20, and the
third plate 30 are formed into an integrated structure. As shown in FIG. 1 to FIG.
8, the first plate 10, the second plate 20, and the third plate 30 are formed by folding
one single plate, a first flow passage 3 is formed between the first plate 10 and
the second plate 20, and the first plate 10 and the second plate 20 are arranged in
a sealed manner. An area sealed by the first plate 10 and the second plate 20 at least
encloses the first flow passage 3 to seal the periphery of the first flow passage
3. A second flow passage 4 is formed between the second plate 20 and the third plate
30, and the second plate 20 and the third plate 30 are arranged in a sealed manner.
An area sealed by the second plate 20 and the third plate 30 at least encloses the
second flow passage 4 to seal the periphery of the second flow passage 4. The heat
exchanger 1 can be formed by folding one single plate without stacking multiple plates
one by one, which not only avoids a mis-assembly but also facilitates the assembly.
By connecting the first plate 10 and the second plate 20 on the first side portion
110 of the heat exchanger 1 through the first connection portion 50 and connecting
the second plate 20 and the third plate 30 on the second side portion 120 of the heat
exchanger 1 through the second connection portion 60, the heat-exchanging plate 2
can be formed by continuously stamping or rolling one single plate rather than stamping
multiple heat-exchanging plates 2 separately, which improves the processing efficiency
and reducing the processing cost.
[0011] As shown in FIG. 1 to FIG. 8, one single plate is folded to form the heat-exchanging
plate 2. The heat-exchanging plates 2 in odd-numbered layers have the same structure,
and the heat-exchanging plates 2 in even-numbered layers have the same structure,
that is, the first plate 10 and the third plate 30 have the same structure. Alternatively,
the heat exchanger 1 may also have only three heat-exchanging plates 2, that is, the
first plate 10, the second plate 20, and the third plate 30, and the first plate 10
and the third plate 30 may also have different structures.
[0012] As shown in FIG. 1 to FIG. 13, the second plate 20 includes a first base portion
21 and a first convex portion 22 protruding relative to the first base portion 21.
The first convex portion 22 is annular and is arranged around the second flow passage
4. The first convex portion 22 and the third plate 30 are arranged in a sealed manner,
and the first convex portion 22 ensures that the second flow passage 4 has a certain
height. The height of the second flow passage 4 can be adjusted by adjusting the height
of the first convex portion 22. The first plate 10 and the first base portion 21 located
on the periphery of the first convex portion 22 are arranged in a sealed manner. A
length of the first connecting portion 50 is less than that of the second connecting
portion 60. By shortening the length of the first connecting portion 50, it can not
only reduce the cost but also reduce the weight of the heat exchanger 1. Certainly,
an annular convex portion, which protrudes towards the first plate 10, may also be
provided on the first base portion 21 located inside the first convex portion 22 for
cooperating with the first plate 10 in a sealed manner, so as to seal the periphery
of the first flow passage 3; or an annular convex portion, which protrudes towards
the second plate 20 located inside the first convex portion 22, is provided on the
first plate 10 for cooperating with the first base portion 21 in a sealed manner,
so as to seal the periphery of the first flow passage 3; or an annular convex portion
protruding towards the first plate 10 is provided on the first base portion 21 located
inside the first convex portion 22 while an annular convex portion protruding towards
the second plate 20 is provided on the first plate 10, and these two annular convex
portions are sealedly arranged so as to seal the periphery of the first flow passage
3. The expressions "being sealedly arranged" and "in a sealed manner" herein may refer
to being fixed by brazing or fixed by sealant, etc..
[0013] In some embodiments, the first flow passage 3 and the second flow passage 4 are provided
with convex portions for turbulence. As shown in FIG. 1 to FIG. 12, the heat exchanger
1 further includes a fourth plate 40, and the third plate 30 is located between the
second plate 20 and the fourth plate 40. A third connecting portion 70 is located
on the first side portion 110 of the heat exchanger. The third plate 30 and the fourth
plate 40 are connected by the third connecting portion 70, and the third connecting
portion 70, the third plate 30, and the fourth plate 40 are formed into an integrated
structure. A third flow passage 5 is provided between the third plate 30 and the fourth
plate 40, and the third plate 30 and the fourth plate 40 are arranged in a sealed
manner. An area sealed by the third plate 30 and the fourth plate 40 at least encloses
the third flow passage 5 to seal the periphery of the third flow passage 5. The first
plate 10 includes a second base portion 11 and a second convex portion 12 protruding
relative to the second base portion 11. The second base portion 11 is arranged around
the second convex portion 12. The second plate 20 includes a first base portion 21
and a first convex portion 22 protruding relative to the first base portion 21. A
protruding direction of the second convex portion 12 is opposite to that of the first
convex portion 22. The first convex portion 22 is annular. The first base portion
21 includes a first inner base portion 211 and a first outer base portion 212. The
first convex portion 22 is arranged around the first inner base portion 211, and the
first outer base portion 212 is arranged around the first convex portion 22. The third
plate 30 includes a third base portion 31 and a third convex portion 32 protruding
relative to the third base portion 31. A protruding direction of the third convex
portion 32 is opposite to that of the first convex portion 22, and the third base
portion 31 is arranged around the third convex portion 32. The fourth plate 40 includes
a fourth base portion 41 and a fourth convex portion 42 protruding relative to the
fourth base portion 41. A protruding direction of the fourth convex portion 42 is
opposite to that of the third convex portion 32. The fourth convex portion 42 is annular,
and the fourth base portion 41 includes a fourth inner base portion 411 and a fourth
outer base portion 412. The fourth convex portion 42 is arranged around the fourth
inner base portion 411, and the fourth outer base portion 412 is arranged around the
fourth convex portion 42. The second base portion 11 and the first outer base portion
212 are arranged in a sealed manner, the first convex portion 22 and the third convex
portion 32 are arranged in a sealed manner, and the third base portion 31 and the
fourth outer base portion 412 are arranged in a sealed manner. The second convex portion
12 is provided with a first convex portion 13 protruding towards the second plate
20, and at least a part of the first convex portion 13 abuts against the first inner
base portion 211. The first inner base portion 211 is provided with a second convex
portion 23 protruding towards the third plate 30, and at least a part of the second
convex portion 23 abuts against the third convex portion 32. The third convex portion
32 is provided a third convex portion 33 protruding towards the fourth plate 40, at
least a part of the third convex portion 33 abuts against the fourth inner base portion
411. The fourth base portion 41 is provided with a fourth convex portion 43 protruding
away from the third plate 30. In this embodiment, the convex portion is of a long-strip
shape, and the long-strip convex portion is arranged at an angle relative to the length
direction of the heat-exchanging plate 2. Certainly, the convex portion may also be
a shape of herringbone wave or a spot wave, for example, the convex portion is multiple
discrete circular convex portions or polygonal convex portions. It should be noted
that, in case that the heat exchanger 1 is only provided with the first plate 10,
the second plate 20, and the third plate 30, that is, in case that the heat exchanger
1 is only provided with the first flow passage 3 and the second flow passage 4, only
the first convex portion 13 and the second convex portion 23 may be provided, or only
the second convex portion 23 and the third convex portion 33 are provided, or only
the second convex portion 23 is provided. Certainly, a convex portion protruding toward
the first plate 10 and a convex portion protruding toward the third plate 30 may be
provided on the second plate 20.
[0014] As shown in FIG. 13, the first flow passage 3 or the second flow passage 4 may not
be provided with convex portions for turbulence, that is, the second convex portion
12 of the first plate 10 is not provided with the convex portion, the first inner
base portion 211 of the second plate 20 located inside the first convex portion 22
is not provided with the convex portion, and the third convex portion 32 of the third
plate 30 is not provided with the convex portion. The first flow passage 3 and the
second flow passage 4 may enhance the turbulence effect to the heat transfer fluid
by providing fins, thereby improving the heat exchanging effect. Certainly, the turbulence
effect may be achieved by providing plates having convex portions only in one of the
first flow passage 3 and the second flow passage 4 while providing fins in the other
one.
[0015] In some embodiments, the heat exchanger 1 further includes a first corner duct 6,
a second corner duct 7, a third corner duct 8, and a fourth corner duct 9. The first
flow passage 3 is in communication with the first corner duct 6 and the second corner
duct 7, the second flow passage 4 is in communication with the third corner duct 8
and the fourth corner duct 9, and the third flow passage 5 is in communication with
the first corner duct 6 and the second corner duct 7. In case that the heat exchanger
1 has multiple flow passages, the flow passages in odd-numbered layers are in communication
with the first corner duct 6 and the second corner duct 7, and the flow passages in
even-numbered layers are in communication with the third corner duct 8 and the fourth
corner duct 9. As shown in FIG. 1 to FIG. 12, each heat-exchanging plate 2 has a first
corner hole 100, a second corner hole 200, a third corner hole 300, and a fourth corner
hole 400, and the first corner holes 100 of the multiple heat-exchanging plates 2
are at least partially aligned to form the first corner duct 6, the second corner
holes 200 of the multiple heat-exchanging plates 2 are at least partially aligned
to form the second corner duct 7, the third corner holes 300 of the multiple heat-exchanging
plates 2 are at least partially aligned to form the third corner duct 8, and the fourth
corner holes 400 of the multiple heat-exchanging plates 2 are at least partially aligned
to form the fourth corner duct 9. The first corner hole 100 and the second corner
hole 200 are circular and located at both ends of the heat-exchanging plate 2 in the
length direction, and the first corner hole 100 and the second corner hole 200 are
arranged close to the second side portion 120 of the heat exchanger 1. The third corner
hole 300 and the fourth corner hole 400 are elliptical and located at both ends of
the heat exchanger 1 in the length direction, and the third corner hole 300 and the
fourth corner hole 400 are arranged close to the first side portion 110 of the heat
exchanger 1. Specifically, the first plate 10 is provided with two first bosses 14
protruding towards the second plate 20, and a top of each first boss 14 is arranged
in the same plane as the second base portion 11. The top of the first boss 14 is provided
with either the third corner hole 300 or the fourth corner hole 400. The first corner
hole 100 and the second corner hole 200 of the first plate 10 are located at the second
convex portion 12, and the second plate 20 is provided with two second bosses 24 protruding
towards the third plate 30. A top of each second boss 24 is located on the same plane
as the top of the first convex portion 22, and the top of the second convex portion
24 is provided with either the first corner hole 100 or the second corner hole 200.
The third corner hole 300 and the fourth corner hole 400 of the second plate 20 are
located at the first inner base portion 211. The third plate 30 is provided with a
third boss 34, and the specific structure of which is the same as the boss of the
first plate 10. The fourth plate 40 is provided with a fourth boss 44, and the specific
structure of which is the same as the boss of the second plate 20, and so on. A gap
is provided between the first corner hole 100 and the second corner hole 200 of the
first plate 10 and the first corner hole 100 and the second corner hole 200 of the
second plate 20 to communicate the first flow passage 3 with the first corner duct
6 and the second corner duct 7. The top of the first boss 14 around the third corner
hole 300 or the fourth corner hole 400 of the first plate 10 and the first inner base
portion 211 around the second corner hole 300 or the fourth corner hole 400 of the
second plate 20 are arranged in a sealed manner. The top of the second boss 21 around
the first corner hole 100 or the second corner hole 200 of the second plate 20 and
the top of the convex portion 32 around the first corner hole 100 or the second corner
hole 200 of the third plate 30 are arranged in a sealed manner. A gap is provided
between the third corner hole 300 and the fourth corner hole 400 of the second plate
20 and the third corner hole 300 and the fourth corner hole 400 of the third plate
30 to communicate the second flow passage 4 with the third corner duct 8 and the fourth
corner duct 9.
[0016] Alternatively, a part of heat-exchanging plates 2 may also have only two corner holes,
three corner holes, or five corner holes, etc.. The different flow path configurations
of the flow passages can be achieved according to different number of corner holes.
The shapes of the corner holes may also be the same, for example, they are all circular.
[0017] It should be noted that the above provides a detailed introduction to the heat exchanger
provided by the present application. Specific examples are used in this article to
explain the principles and implementation methods of the present application, and
the above examples are only used for understanding the core idea of the present application.
It should be noted that, for those skilled in the art, several improvements and modifications
can be made to the present application without departing from the principles of the
present application, and these improvements and modifications also fall within the
scope of the claims of the present application.
1. A heat exchanger (1), comprising a heat-exchanging plate (2), wherein the heat-exchanging
plate (2) comprises: a first plate (10), a second plate (20), and a third plate (30),
and the second plate (20) is located between the first plate (10) and the third plate
(30),
a first direction is defined to be perpendicular to a stacking direction of the heat-exchanging
plate (2), wherein the heat exchanger (1) comprises a first side portion (110) and
a second side portion (120), which are arranged on two opposite sides of the heat
exchanger (1) in the first direction,
the heat exchanger (1) further comprises a first connecting portion (50) and a second
connection portion (60), wherein the first connecting portion (50) is located on the
first side portion (110) and the second connection portion (60) is located on the
second side portion (120),
the first connecting portion (50), the second connection portion (60), the third plate
(30), the first plate (10), and the second plate (20) are formed into an integrated
structure.
2. The heat exchanger (1) according to claim 1, wherein a first flow passage (3) is formed
between the first plate (10) and the second plate (20), the first plate (10) and the
second plate (20) are arranged in a sealed manner, and an area sealed by the first
plate (10) and the second plate (20) at least encloses the first flow passage (3),
a second flow passage (4) is formed between the second plate (20) and the third plate
(30), the second plate (20) and the third plate (30) are arranged in a sealed manner,
and an area sealed by the second plate (20) and the third plate (30) at least encloses
the second flow passage (4).
3. The heat exchanger (1) according to claim 1 or 2, wherein the second plate (20) comprises
a first base portion (21) and a first convex portion (22) protruding relative to the
first base portion (21), and the first convex portion (22) is arranged around the
second flow passage (4),
the first convex portion (22) and the third plate (30) are arranged in a sealed manner,
and the first convex portion (22) and the first plate (10) are arranged in a sealed
manner.
4. The heat exchanger (1) according to claim 3, wherein the first plate (10) comprises
a second base portion (11) and a second convex portion (12) protruding relative to
the second base portion (11), a protruding direction of the second convex portion
(12) is opposite to a protruding direction of the first convex portion (22), and the
second base portion (11) is arranged around the second convex portion (12),
the first base portion (21) comprises a first outer base portion (212), the first
outer base portion (212) is arranged around the first convex portion (22), and the
second base portion (11) and the first outer base portion (212) are arranged in a
sealed manner.
5. The heat exchanger (1) according to claim 3, wherein the third plate (30) comprises
a third base portion (31) and a third convex portion (32) protruding relative to the
third base portion (31), a protruding direction of the third convex portion (32) is
opposite to a protruding direction of the first convex portion (22),
the third base portion (31) is arranged around the third convex portion (32) and the
first convex portion (22) and the third convex portion (32) are arranged in a sealed
manner.
6. The heat exchanger (1) according to claim 4, wherein the second convex portion (12)
is provided with a first convex portion (13) protruding towards the second plate (20),
and the first base portion (21) comprises a first inner base portion (211), wherein
the first convex portion (22) is arranged around the first inner base portion (211),
and at least a part of the first convex portion (13) abuts against the first inner
base portion (211).
7. The heat exchanger (1) according to claim 5, wherein the first base portion (21) comprises
a first inner base portion (211), the first convex portion (22) is arranged around
the first inner base portion (211),
the first inner base portion (211) is provided with a second convex portion (23) protruding
towards the third plate (30), the third convex portion (32) is provided a third convex
portion (33) protruding away from the second plate (20),and at least a part of the
second convex portion (23) abuts against the third convex portion (32).
8. The heat exchanger (1) according to any one of claims 1 to 7, further comprising a
first corner duct (6), a second corner duct (7), a third corner duct (8), and a fourth
corner duct (9),
wherein the first flow passage (3) is in communication with the first corner duct
(6) and the second corner duct (7), and the second flow passage (4) is in communication
with the third corner duct (8) and the fourth corner duct (9).
9. The heat exchanger (1) according to any one of claims 1 to 7, further comprising a
fourth plate (40) and a third connecting portion (70), wherein
the third plate (30) is located between the second plate (20) and the fourth plate
(40), the third connecting portion (70) is located on the first side portion (110)
of the heat exchanger (1), and the third connecting portion (70), the third plate
(30), and the fourth plate (40) are formed into an integrated structure,
a third flow passage (5) is provided between the third plate (30) and the fourth plate
(40), the third plate (30) and the fourth plate (40) are arranged in a sealed manner,
and an area sealed by the third plate (30) and the fourth plate (40) at least encloses
the third flow passage (5).
10. The heat exchanger (1) according to claim 9, further comprising a first corner duct
(60), a second corner duct (7), a third corner duct (8), and a fourth corner duct
(9), wherein
the first flow passage (3) is in communication with the first corner duct (6) and
the second corner duct (7), the second flow passage (4) is in communication with the
third corner duct (8) and the fourth corner duct (9), and the third flow passage (5)
is in communication with the first corner duct (6) and the second corner duct (7).
11. The heat exchanger (1) according to claim 10, wherein the first plate (10) comprises
a second base portion (11) and a second convex portion (12) protruding relative to
the second base portion (11), the second base portion (11) is arranged around the
second convex portion (12),
the second plate (20) comprises a first base portion (21) and a first convex portion
(22) protruding relative to the first base portion (21), the first base portion (21)
comprises a first inner base portion (211) and a first outer base portion (212), the
first convex portion (22) is arranged around the first inner base portion (211) and
the first outer base portion (212) is arranged around the first convex portion (22),
a protruding direction of the second convex portion (12) is opposite to a protruding
direction of the first convex portion (22),
the third plate (30) comprises a third base portion (31) and a third convex portion
(32) protruding relative to the third base portion (31), the third base portion (31)
is arranged around the third convex portion (32), and a protruding direction of the
third convex portion (32) is opposite to a protruding direction of the first convex
portion (22),
the fourth plate (40) comprises a fourth base portion (41) and a fourth convex portion
(42) protruding relative to the fourth base portion (41), wherein the fourth base
portion (41) comprises a fourth inner base portion (411) and a fourth outer base portion
(412), the fourth convex portion (42) is arranged around the fourth inner base portion
(411), the fourth outer base portion (412) is arranged around the fourth convex portion
(42), and a protruding direction of the fourth convex portion (42) is opposite to
a protruding direction of the third convex portion (32),
the second base portion (11) and the first outer base portion (212) are arranged in
a sealed manner, the first convex portion (22) and the third convex portion (32) are
arranged in a sealed manner, and the third base portion (31) and the fourth outer
base portion (412) are arranged in a sealed manner,
the second convex portion (12) is provided with a first convex portion (13) protruding
towards the second plate (20), and at least a part of the first convex portion (13)
abuts against the first inner base portion (211), wherein the first inner base portion
(211) is provided with a second convex portion (23) protruding towards the third plate
(30), and at least a part of the second convex portion (23) abuts against the third
convex portion (32), wherein the third convex portion (32) is provided a third convex
portion (33) protruding towards the fourth plate (40), and at least a part of the
second convex portion (23) abuts against the fourth inner base portion (411).