Superposed heat exchanger

Patent metadata

Field	Value
Publication number	US-9958212-B2
Application number	US-201415125544-A
Country	US
Kind code	B2
Filing date	Jun 10, 2014
Priority date	Mar 14, 2014
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

Disclosed is a superposed heat exchanger, including a plurality of fins superposed up. Two opposite side edges of each fin are bent upwards to form a ventilating air path in coordination with an upper fin, and adjacent fins are arranged in a mode of vertical-horizontal alternating so as to form horizontal air paths and vertical air paths independent from each other with up-down intervals.

First claim

What is claimed is:

1. A superposed heat exchanger, comprising a plurality of fins superposed up; two opposite side edges of each fin are bent upwards to form a ventilating air path in coordination with an upper fin, and adjacent fins are arranged in a mode of vertical-horizontal alternating so as to form horizontal air paths and vertical air paths independent from each other;
wherein downward convex pins are arranged on lower surfaces of two upwards bent side edges of the fin, and downward concave slots are arranged in upper surfaces of other two side edges; and pins of the fins are inserted into slots on lower fins so as to connect an upper and a lower adjacent fins.

2. The superposed heat exchanger according to claim 1 , wherein a plurality of downward profiled grooves are provided in parallel on the fin in a direction vertical to the air path formed by the fin and an upper fin, and an air path formed with a lower fin is divided into a plurality of parallel air paths by the profiled grooves.

3. The superposed heat exchanger according to claim 2 , wherein downward profiled grooves are provided on the fin in an air inlet and an air outlet in the front and rear of air paths formed between the fin and an upper fin, and the profiled grooves form the slots.

4. The superposed heat exchanger according to claim 3 , wherein a profiled depth on both ends of the profiled groove is larger than a profiled depth in middle of the profiled groove, so that a downward convex is formed so as to form the pin.

5. The superposed heat exchanger according to claim 1 , wherein four side edges of the fin are bent outwards to form turn-ups; turn-ups of adjoining upper and lower fins are overlapped; and turn-ups at the slots are overlapped and fitted closely on turn-ups, which are bent upwards first before bent outwards, on a lower fin.

6. The superposed heat exchanger according to claim 1 , wherein a plurality of upward profiled grooves are provided in parallel on the fin in a direction parallel to the air path formed by the fin and an upper fin, and an air path formed with an upper fin is divided into a plurality of parallel air paths by the profiled grooves.

7. The superposed heat exchanger according to claim 1 , wherein materials of the fins are plastics.

8. The superposed heat exchanger according to claim 1 , wherein thickness of the fins is 0.2-0.5 mm, or 0.3 mm.

9. The superposed heat exchanger according to claim 1 , wherein a frame is arranged outside the heat exchanger, and frame plates are arranged on an upper side, a lower side, a left side, a right side, a front side and a back side of the heat exchanger; and the frame is of an enclosure structure formed by connecting the frame plates arranged on the sides of the heat exchanger.

10. The superposed heat exchanger according to claim 9 , wherein through holes matched with an air path of an internal heat exchanger are formed in two groups of frame plates opposite to air paths of the heat exchanger on the frame, and another group of opposite frame plate is a flat plate; the through holes are rectangular through holes arranged horizontally and vertically; and the through holes formed in two groups of opposite frame plates correspond to an inlet and an outlet of a horizontal air path and a vertical air path respectively.

11. The superposed heat exchanger according to claim 10 , wherein a connecting part is arranged on a connector of each frame plate on the frame, and adjacent frame plates are connected through connecting parts; each connecting part is of a buckle structure; two groups of frame plates with the through holes are provided with a plurality of parallel grooves on internal surfaces, and the grooves of the internal surfaces of the frame plates correspond to closely fitted turn-ups; the closely fitted turn-ups are inserted into grooves of internal surfaces of corresponding frame plates; a plurality of sheet-shaped bulges vertical to frame plates are arranged on adjacent edges of the two groups of frame plates with the through holes; a shape of the sheet-shaped bulges is identical with that of a space between corresponding adjacent turn-ups at the pins; and the sheet-shaped bulges are respectively inserted into the space between corresponding adjacent turn-ups at the pins.

12. The superposed heat exchanger according to claim 10 , wherein the vertical air path is arranged vertically to correspond to a hot air inlet and a hot air outlet; the horizontal air path is arranged horizontally to correspond to a cold air inlet and a cold air outlet; an upper cover plate is arranged at the hot air inlet; the upper cover plate has a slanting top surface; the upper cover plate forms a chamber with the heat exchanger; the air inlet of an air condensing structure is formed on the chamber at one end where the upper cover plate is inclined highly and away from the heat exchanger; a lower cover plate is arranged at the hot air outlet of the heat exchanger; one side of the lower cover plate is an air outlet of the air condensing structure; and the upper and the lower cover plates are connected with flat frame plates.

13. The superposed heat exchanger according to claim 12 , wherein a filter is arranged between the air inlet and the hot air inlet of the heat exchanger; the filter is arranged between the air inlet of the air condensing structure and the hot air inlet of the heat exchanger in a pushable-pullable mode; the filter is arranged in the chamber; the filter is in sliding connection with side walls of the chamber, and one end of the filter protrudes out of the chamber; when one end of the filter is located in the innermost place of the chamber, the other end of the filter is located outside the chamber and is tightly sealed with an opening of the chamber through which the filter penetrates; sliding chutes/sliding blocks are arranged on two side edges of the filter, and sliding blocks/sliding chutes are arranged on corresponding side walls of the chamber; and the sliding chutes/sliding blocks are matched with the sliding blocks/sliding chutes so as to form sliding connection.

14. The superposed heat exchanger according to claim 12 , wherein a flushing structure is arranged between the air inlet and the hot air inlet of the heat exchanger; the flushing structure comprises a spray layer and a seal cover which form a cavity; a plurality of spray holes are formed in the spray layer; water inlets are formed in the seal cover; the spray layer serves as the upper cover plate arranged at the hot air inlet of the heat exchanger; the seal cover is arranged on an upper part of the upper cover plate and is in sealed connection with the upper cover plate; and a plurality of spray holes are formed in the upper cover plate.

15. The superposed heat exchanger according to claim 12 , wherein an air intake uniform structure is arranged between the air inlet and the hot air inlet of the heat exchanger; a plurality of vertical ribbed slabs are arranged in the air inlet and on an inner surface of top of the upper cover plate so as to divide the air inlet into a plurality of uniform air paths, so that the air intake uniform structure is formed; an air outtake uniform structure is arranged between the air outlet of the air condensing structure and the hot air outlet of the heat exchanger; a lower cover plate is arranged at a condensed hot air outlet of the heat exchanger; a plurality of air outlets are formed on one side of the lower cover plate; and the plurality of air outlets in a shape of Chinese character “ ” are communicated to a general air outlet, so that the air outtake uniform structure is formed.

16. The superpos

Assignees

• Haier Group Corp
• Qingdao Haier Drum Washing Machine Co Ltd
• Quingdao Haier Drum Washing Machine Co Ltd

Inventors

• Lv Peishi
• Xu Yonghong
• Zhao Xueli
• Zhang Huacheng
• Jiang Yuliang

Classifications

• F28D9/0037 Primary

  the conduits for the other heat-exchange medium also being formed by paired plates touching each other (F28D9/0043 takes precedence) · CPC title

• F28F2250/106

  with cross flow · CPC title

• D06F58/24

  Condensing arrangements · CPC title

• F28G9/00

  Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16) · CPC title

• F28F2275/14

  by using form fitting connection, e.g. with tongue and groove · CPC title