US20170211825A1

US20170211825A1 - Total heat exchanger

Info

Publication number: US20170211825A1
Application number: US15/211,558
Authority: US
Inventors: Chih-Hsiang Chang; Chao-Hsien Chan; Yuan-Ping Hsieh
Original assignee: Delta Electronics Inc
Current assignee: Delta Electronics Inc
Priority date: 2016-01-27
Filing date: 2016-07-15
Publication date: 2017-07-27
Also published as: JP6374462B2; TW201727165A; TWI614461B; JP2017133821A

Abstract

A total heat exchanger is provided. The total heat exchanger includes a housing, a total heat exchanging core, a first fan and a second fan. The housing includes a first side wall, a first receiving space, a second receiving space and a third receiving space. The third receiving space is adjacent to the first side wall. The total heat exchanging core is disposed in the third receiving space. The first fan is disposed in the first receiving space and communicates with the total heat exchanging core, wherein the first fan includes a first rotation axis. The second fan is disposed in the second receiving space and communicates with the total heat exchanging core, wherein the second fan includes a second rotation axis. The first fan, the second fan and the total heat exchanging core are arranged on a plane.

Description

CROSS REFERENCE TO RELATED APPLICATIONS

This Application claims priority of Taiwan Patent Application No. 105102459, filed on Jan. 27, 2016, the entirety of which is incorporated by reference herein.

BACKGROUND OF THE INVENTION

Field of the Invention
The present invention relates to a total heat exchanger, and in particular to a total heat exchanger with a total heat exchanging core disposed on a side thereof.
Description of the Related Art
In conventional total heat exchangers, a total heat exchanging core is disposed in the central portion of the total heat exchanger, and fans are disposed on two sides of the total heat exchanging core to impel the air flow. The fans are disposed in an upright position. The total heat exchanging core exchanges the heat and the moisture with the air flow, and recycles energy.
In conventional total heat exchangers, the dimensions of the fans are restricted by the dimensions of the total heat exchanging core. The small fans produce noise, and cannot generate sufficient rates of flow. However, if the dimensions of the fans are increased, the dimensions of the total heat exchanging core and the whole total heat exchanger are increased. Additionally, the capability of the total heat exchanging core cannot be sufficiently exerted.

BRIEF SUMMARY OF THE INVENTION

In one embodiment, a total heat exchanger is provided. The total heat exchanger comprises a housing, a total heat exchanging core, a first fan and a second fan. The housing comprises a first side wall, a first receiving space, a second receiving space and a third receiving space. The third receiving space is adjacent to the first side wall. The total heat exchanging core is disposed in the third receiving space. The first fan is disposed in the first receiving space and communicates with the total heat exchanging core, wherein the first fan comprises a first rotation axis. The second fan is disposed in the second receiving space and communicates with the total heat exchanging core, wherein the second fan comprises a second rotation axis. The first fan, the second fan and the total heat exchanging core are arranged on a plane, and the first rotation axis and the second rotation axis are perpendicular to the plane.
In one embodiment, the housing further comprises a second side wall, the first receiving space and the second receiving space are adjacent to the second side wall, and the first receiving space and the second receiving space are located between the second side wall and the third receiving space.
In one embodiment, a first inlet chamber and a second inlet chamber are formed inside the housing. A first inlet, a second inlet, a first outlet and a second outlet are formed on the housing. The first inlet chamber and the second inlet chamber correspond to the total heat exchanging core. The first inlet is connected to the first inlet chamber. The second inlet is connected to the second inlet chamber. The first outlet corresponds to the first fan, and the second outlet corresponds to the second fan.
In one embodiment, the first inlet chamber and the second inlet chamber are arranged in a first direction, and the first direction is perpendicular to the plane.
In one embodiment, the housing further comprises a third side wall and a fourth side wall. The first side wall faces the second side wall. The third side wall faces the fourth side wall. The first inlet is formed on the third side wall. The second inlet is formed on the fourth side wall.
In one embodiment, a first flow enters the total heat exchanger through the first inlet, passes through the first inlet chamber, the total heat exchanging core and the first fan, and leaves the total heat exchanger through the first outlet. A second flow enters the total heat exchanger through the second inlet, passes through the second inlet chamber, the total heat exchanging core and the second fan, and leaves the total heat exchanger through the second outlet.
In one embodiment, the total heat exchanger further comprises a first guiding structure and a second guiding structure. The first guiding structure is disposed in the first inlet chamber to push the first flow toward the total heat exchanging core. The second guiding structure is disposed in the second inlet chamber to push the second flow toward the total heat exchanging core.
In one embodiment, the first guiding structure and the second guiding structure are formed on the first side wall.
In one embodiment, each of the first guiding structure and the second guiding structure has at least one through opening.
In one embodiment, the first inlet chamber has an inlet chamber length L, a distance d1 is formed between the first guiding structure and the first inlet, and 0≦d1≦L/2.
In one embodiment, the first inlet chamber has a greatest inlet chamber width W, the first guiding structure has a structural width d2, and W/3≦d2≦W.
In one embodiment, the first inlet chamber has a greatest inlet chamber height H, the first guiding structure has a structural height d3, and H/3≦d3≦H.
In the embodiment of the invention, the total heat exchanging core is adjacent to the first side wall. The heat exchanging area of the total heat exchanging core is increased, and the air flow can smoothly enter the total heat exchanging core. The first fan and the second fan lay on the plane (in other words, the first rotation axis and the second rotation axis are perpendicular to the plane). The first fan and the second fan are adjacent to the second wall. Therefore, the dimensions of the first fan and the second fan can be increased to improve flow rate and to reduce noise.
In one embodiment of the invention, the first guiding structure and the second guiding structure push the first flow and the second flow toward the total heat exchanging core to improve the heat exchanging efficiency of the total heat exchanging core.
A detailed description is given in the following embodiments with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:

FIG. 1 shows a total heat exchanger of an embodiment of the invention;

FIG. 2A shows the air flow inside the total heat exchanger;

FIG. 2B is a cross sectional view along 2B-2B′ direction of FIG. 2A;

FIG. 2C is a cross sectional view along 2C-2C′ direction of FIG. 2A;

FIGS. 3A, 3B and 3C show the openings formed on the first guiding structure;

FIG. 4A shows the position of the first guiding structure; and

FIG. 4B shows the dimensions of the first guiding structure.

DETAILED DESCRIPTION OF THE INVENTION

The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
FIG. 1 shows a total heat exchanger 1 of an embodiment of the invention. The total heat exchanger 1 comprises a housing 10, a total heat exchanging core 30, a first fan 21 and a second fan 22. The housing 10 comprises a first side wall 101, a first receiving space 11, a second receiving space 12 and a third receiving space 13. The third receiving space 13 is adjacent to the first side wall 101. The first fan 21 is disposed in the first receiving space 11 and communicates with the total heat exchanging core 30, wherein the first fan 21 comprises a first rotation axis 211. The second fan 22 is disposed in the second receiving space 12 and communicates with the total heat exchanging core 30, wherein the second fan 22 comprises a second rotation axis 221. The total heat exchanging core 30 is disposed in the third receiving space 13. The first fan 21, the second fan 22 and the total heat exchanging core 30 are arranged on a plane P, and the first rotation axis 211 and the second rotation axis 221 are perpendicular to the plane P.
In one embodiment, the housing 10 further comprises a second side wall 102. The first receiving space 11 and the second receiving space 12 are adjacent to the second side wall 102. The first receiving space 11 and the second receiving space 12 are located between the second side wall 102 and the third receiving space 13.
In the embodiment of the invention, the total heat exchanging core 30 is adjacent to the first side wall 101. The heat exchanging area of the total heat exchanging core 30 is increased, and the air flow can smoothly enter the total heat exchanging core 30. The first fan 21 and the second fan 22 lay on the plane P (in other words, the first rotation axis 211 and the second rotation axis 221 are perpendicular to the plane P). The first fan 21 and the second fan 22 are adjacent to the second wall 102. Therefore, the dimensions of the first fan 21 and the second fan 22 can be increased to improve flow rate and to reduce noise.
In one embodiment, a first inlet chamber 41 and a second inlet chamber 42 are formed inside the housing 10. A first inlet 43, a second inlet 44, a first outlet 45 and a second outlet 46 are formed on the housing 10. The first inlet chamber 41 and the second inlet chamber 42 correspond to the total heat exchanging core 30. The first inlet 43 is connected to the first inlet chamber 41. The second inlet 44 is connected to the second inlet chamber 42. The first outlet 45 corresponds to the first fan 21, and the second outlet 46 corresponds to the second fan 22.
In one embodiment, the first inlet chamber 41 and the second inlet chamber 42 are arranged in a first direction Z. The first direction Z is perpendicular to the plane P.
In one embodiment, the housing 10 further comprises a third side wall 103 and a fourth side wall 104. The first side wall 101 faces the second side wall 102. The third side wall 103 faces the fourth side wall 104. The first inlet 42 is formed on the third side wall 103. The second inlet 44 is formed on the fourth side wall 104.
FIG. 2A shows the air flow inside the total heat exchanger 1. FIG. 2B is a cross sectional view along 2B-2B′ direction of FIG. 2A. FIG. 2C is a cross sectional view along 2C-2C′ direction of FIG. 2A. With reference to FIGS. 2A, 2B and 2C, in one embodiment, a first flow A1 enters the total heat exchanger 1 through the first inlet 43, passes through the first inlet chamber 41, the total heat exchanging core 30 and the first fan 21, and leaves the total heat exchanger 1 through the first outlet 45. A second flow A2 enters the total heat exchanger 1 through the second inlet 44, passes through the second inlet chamber 42, the total heat exchanging core 30 and the second fan 22, and leaves the total heat exchanger 1 through the second outlet 46.
With reference to FIGS. 1, 2A, 2B and 2C, in one embodiment, the total heat exchanger 1 further comprises a first guiding structure 51 and a second guiding structure 52. The first guiding structure 51 is disposed in the first inlet chamber 41 to push the first flow A1 toward the total heat exchanging core 30. The second guiding structure 52 is disposed in the second inlet chamber 42 to push the second flow A2 toward the total heat exchanging core 30. In this embodiment, the first guiding structure 51 and the second guiding structure 52 are formed on the first side wall 101.
In one embodiment of the invention, the first guiding structure 51 and the second guiding structure 52 push the first flow A1 and the second flow A2 toward the total heat exchanging core 30 to improve the heat exchanging efficiency of the total heat exchanging core 30.
However, in several embodiments, the first guiding structure 51 and the second guiding structure 52 may decrease the flow rate of the total heat exchanger. Therefore, with reference to FIGS. 3A, 3B and 3C, in one embodiment, each of the first guiding structure 51 and the second guiding structure 52 has through openings 53. For example, in FIG. 3A, the first guiding structure 51 has longitudinal openings 53 (fences shaped) which extend in the Z direction. In FIG. 3B, the longitudinal openings 53 (fences shaped) extend in X direction. In FIG. 3C, the first guiding structure 51 has circular openings 53. The through openings on the first guiding structure 51 and the second guiding structure 52 are adapted for modifying the flow rate of the total heat exchanger.
FIG. 4A shows the position and the dimensions of the first guiding structure 51. In one embodiment, the first inlet chamber 41 has an inlet chamber length L, a distance d1 is formed between the first guiding structure 51 and the first inlet 43, and 0≦d1≦L/2. With reference to FIG. 4B, the first inlet chamber 41 has a greatest inlet chamber width W, the first guiding structure 51 has a structural width d2, and W/3≦d2≦W. The first inlet chamber 41 has a greatest inlet chamber height H, the first guiding structure 51 has a structural height d3, and H/3≦d3≦H. Experiments confirms that the heat exchanging efficiency of the total heat exchanger according to the above design is improved. However, the disclosure is not meant to restrict the invention. The position and dimensions of the second guiding structure 52 can be the same as those of the first guiding structure 51.
Use of ordinal terms such as “first”, “second”, “third”, etc., in the claims to modify a claim element does not by itself connote any priority, precedence, or order of one claim element over another or the temporal order in which acts of a method are performed, but are used merely as labels to distinguish one claim element having a certain name from another element having the same name (but for use of the ordinal term).
While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.

Claims

1. A total heat exchanger, comprising:

a housing, comprising a first side wall, a first receiving space, a second receiving space and a third receiving space, wherein the third receiving space is adjacent to the first side wall;

a total heat exchanging core, disposed in the third receiving space;

a first fan, disposed in the first receiving space and communicating with the total heat exchanging core, wherein the first fan comprises a first rotation axis; and

a second fan, disposed in the second receiving space and communicating with the total heat exchanging core, wherein the second fan comprises a second rotation axis,

wherein the first fan, the second fan and the total heat exchanging core are arranged on a plane, and the first rotation axis and the second rotation axis are perpendicular to the plane.

2. The total heat exchanger as claimed in claim 1, wherein the housing further comprises a second side wall, the first receiving space and the second receiving space are adjacent to the second side wall, and the first receiving space and the second receiving space are located between the second side wall and the third receiving space.

3. The total heat exchanger as claimed in claim 2, wherein a first inlet chamber and a second inlet chamber are formed inside the housing, a first inlet, a second inlet, a first outlet and a second outlet are formed on the housing, the first inlet chamber and the second inlet chamber correspond to the total heat exchanging core, the first inlet is connected to the first inlet chamber, the second inlet is connected to the second inlet chamber, the first outlet corresponds to the first fan, and the second outlet corresponds to the second fan.

4. The total heat exchanger as claimed in claim 3, wherein the first inlet chamber and the second inlet chamber are arranged in a first direction, and the first direction is perpendicular to the plane.

5. The total heat exchanger as claimed in claim 3, wherein the housing further comprises a third side wall and a fourth side wall, the first side wall faces the second side wall, the third side wall faces the fourth side wall, the first inlet is formed on the third side wall, and the second inlet is formed on the fourth side wall.

6. The total heat exchanger as claimed in claim 3, wherein a first flow enters the total heat exchanger through the first inlet, passes through the first inlet chamber, the total heat exchanging core and the first fan, and leaves the total heat exchanger through the first outlet, and a second flow enters the total heat exchanger through the second inlet, passes through the second inlet chamber, the total heat exchanging core and the second fan, and leaves the total heat exchanger through the second outlet.

7. The total heat exchanger as claimed in claim 6, further comprising a first guiding structure and a second guiding structure, wherein the first guiding structure is disposed in the first inlet chamber to push the first flow toward the total heat exchanging core, and the second guiding structure is disposed in the second inlet chamber to push the second flow toward the total heat exchanging core.

8. The total heat exchanger as claimed in claim 7, wherein the first guiding structure and the second guiding structure are formed on the first side wall.

9. The total heat exchanger as claimed in claim 7, wherein each of the first guiding structure and the second guiding structure has at least one through opening.

10. The total heat exchanger as claimed in claim 7, wherein the first inlet chamber has an inlet chamber length L, a distance d1 is formed between the first guiding structure and the first inlet, and 0≦d1≦L/2.

11. The total heat exchanger as claimed in claim 10, wherein the first inlet chamber has a greatest inlet chamber width W, the first guiding structure has a structural width d2, and W/3≦d2≦W.

12. The total heat exchanger as claimed in claim 11, wherein the first inlet chamber has a greatest inlet chamber height H, the first guiding structure has a structural height d3, and H/3≦d3≦H.

13. A total heat exchanger, comprising:

a total heat exchanging core, disposed in the third receiving space;

wherein the housing further comprises a second side wall, the first receiving space and the second receiving space are adjacent to the second side wall, and the first receiving space and the second receiving space are located between the second side wall and the third receiving space, and

wherein a first inlet chamber and a second inlet chamber are formed inside the housing, a first inlet, a second inlet, a first outlet and a second outlet are formed on the housing, the first inlet chamber and the second inlet chamber correspond to the total heat exchanging core, the first inlet is connected to the first inlet chamber, the second inlet is connected to the second inlet chamber, the first outlet corresponds to the first fan, and the second outlet corresponds to the second fan.

14. The total heat exchanger as claimed in claim 13, wherein a first flow enters the total heat exchanger through the first inlet, passes through the first inlet chamber, the total heat exchanging core and the first fan, and leaves the total heat exchanger through the first outlet, and a second flow enters the total heat exchanger through the second inlet, passes through the second inlet chamber, the total heat exchanging core and the second fan, and leaves the total heat exchanger through the second outlet.

15. The total heat exchanger as claimed in claim 14, further comprising a first guiding structure and a second guiding structure, wherein the first guiding structure is disposed in the first inlet chamber to push the first flow toward the total heat exchanging core, and the second guiding structure is disposed in the second inlet chamber to push the second flow toward the total heat exchanging core.

16. The total heat exchanger as claimed in claim 15, wherein the first guiding structure and the second guiding structure are formed on the first side wall.

17. The total heat exchanger as claimed in claim 15, wherein each of the first guiding structure and the second guiding structure has at least one through opening.

18. The total heat exchanger as claimed in claim 15, wherein the first inlet chamber has an inlet chamber length L, a distance d1 is formed between the first guiding structure and the first inlet, and 0≦d1≦L/2.

19. The total heat exchanger as claimed in claim 18, wherein the first inlet chamber has a greatest inlet chamber width W, the first guiding structure has a structural width d2, and W/3≦d2≦W.

20. The total heat exchanger as claimed in claim 19, wherein the first inlet chamber has a greatest inlet chamber height H, the first guiding structure has a structural height d3, and H/3≦d3≦H.