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US 11,268,767 B2Granted
Heat exchanger
AssigneeHangzhou Sanhua Research Institute Co., Ltd.
InventorsJunqi Dong, Weiwei Zhang, Jianhua Gao
Life of this patent
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Abstract
A heat exchanger includes a first collecting pipe, a second collecting pipe and a number of flat tubes connected between the first collecting pipe and the second collecting pipe. The first collecting pipe includes a first upper main board and a first lower main board. A first channel and a second channel are formed between the first upper main board and the first lower main board. The second collecting pipe includes a third channel and a fourth channel. The third channel is communicated with the first channel through a row of the flat tubes. The fourth channel is communicated with the second channel through another row of the flat tubes.
Claims20
A heat exchanger comprising:
- a first collecting pipe comprising a first upper main board and a first lower main board, the first upper main board and the first lower main board being hermetically connected, a first channel and a second channel being formed between the first upper main board and the first lower main board;
- a second collecting pipe provided with a third channel and a fourth channel;
- and
- a plurality of flat tubes in two rows, one ends of the flat tubes being communicated with the first channel and the second channel, respectively;
- and the other ends of the flat tubes being communicated with the third channel and the fourth channel, respectively;
- wherein
- the third channel is communicated with the first channel through a row of the flat tubes, and the fourth channel is communicated with the second channel through another row of the flat tubes;
- wherein
- the first upper main board has a flat bottom surface, the first lower main board has a flat top surface facing the flat bottom surface, the first channel and the second channel are formed between the flat bottom surface and the flat top surface;
- wherein
- a vertical height between a highest point of the first channel and the second channel and a lowest point of the first channel and the second channel is L1, a maximum width of each of the first channel and the second channel is L2, and a ratio of L1 to L2 is not greater than 1:4;
- and wherein
- the one ends of the flat tubes protrude into the first channel and the second channel, respectively.
10 more elements
A heat exchanger comprising:
- a first collecting pipe comprising a first upper main board and a first lower main board, the first upper main board and the first lower main board being hermetically connected, a first channel and a second channel being formed between the first upper main board and the first lower main board;
- a second collecting pipe provided with a third channel and a fourth channel;
- and
- a plurality of flat tubes in two rows, one ends of the flat tubes being communicated with the first channel and the second channel, respectively;
- and the other ends of the flat tubes being communicated with the third channel and the fourth channel, respectively;
- wherein
- the third channel is communicated with the first channel through a row of the flat tubes, and the fourth channel is communicated with the second channel through another row of the flat tubes;
- and wherein
- the first upper main board is provided with two first partitions, and each of the first channel and the second channel is separated into two parts by the corresponding first partition.
6 more elements
A heat exchanger comprising:
- a first collecting pipe comprising a first upper main board and a first lower main board, the first upper main board and the first lower main board being hermetically connected, a first channel and a second channel being formed between the first upper main board and the first lower main board;
- a second collecting pipe provided with a third channel and a fourth channel;
- and
- a plurality of flat tubes in two rows, one ends of the flat tubes being communicated with the first channel and the second channel, respectively;
- and the other ends of the flat tubes being communicated with the third channel and the fourth channel, respectively;
- wherein
- the third channel is communicated with the first channel through a row of the flat tubes, and the fourth channel is communicated with the second channel through another row of the flat tubes;
- and wherein
- the first collecting pipe or the second collecting pipe is provided with an inlet and an outlet, the first upper main board is provided with a third middle rib and a plurality of second partitions, the first upper main board encloses with the first lower main board through the third middle rib to form the first channel and the second channel, and the first channel and the second channel are communicated with the second collecting pipe through the flat tubes, respectively;
- the second partitions separate each of the first channel and the second channel into two chambers;
- the first upper main board is further provided with two first reinforcing ribs, the two first reinforcing ribs are both arranged along a length direction of the first upper main board to separate the first channel and the second channel along the length direction, respectively;
- the two first reinforcing ribs are located in the first channel and the second channel, respectively;
- and the two first reinforcing ribs are parallel to the third middle rib.
10 more elements
Dependencies are inferred from the claim text.