# US 11,441,789 B2 · Convection/radiation air conditioning terminal and air conditioning system

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- Number: US 11,441,789 B2
- Document ID: US11441789B2
- Status: Granted
- Kind: B2
- Application number: 16/862,881
- Filed: 2020-04-30
- Published: 2020-11-12
- Granted: 2022-09-13
- Earliest claimed: 2019-05-08
- Assignees: Tsinghua University
- Applicants: Tsinghua University
- Inventors: Borong Lin; Hongli Sun; Hui Li; Zhirong Lin; Mengfan Duan
- Web page: https://patentgrep.com/patent/US11441789B2

## CPC

- F24F 1/00077: {receiving heat exchange fluid entering and leaving the unit as a liquid}
- F28D 15/0275: {Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores}
- F24F 1/00073: {comprising a compressor in the indoor unit housing}
- F24F 1/0063: by the mounting or arrangement of the heat exchangers
- F28D 15/0233: {the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence)}
- F28D 15/04: with tubes having a capillary structure
- F28F 13/185: {Heat-exchange surfaces provided with microstructures or with porous coatings}
- F24F 5/0089: {Systems using radiation from walls or panels}
- F28D 2021/0035: {for domestic or space heating, e.g. heating radiators}
- F28F 2260/02: having microchannels
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16)

## Abstract

A convection/radiation air conditioning terminal and an air conditioning system are provided. The convection/radiation air conditioning terminal includes a heat pipe. One end of the heat pipe is connected to a first heat exchange pipeline, and the other end of the heat pipe is connected to a second heat exchange pipeline. The heat pipe includes multiple first microchannels which are arranged and independent of each other, and multiple second microchannels which are arranged and independent of each other, where the first microchannels and the second microchannels are arranged and independent of each other. The first microchannels are each internally provided with a first heat exchange working medium, and the second microchannels are each internally provided with a second heat exchange working medium.

## Claims

### Claim 1

A convection/radiation air conditioning terminal, comprising a heat pipe;
wherein one end of the heat pipe is connected to a first heat exchange pipeline, and the other end of the heat pipe is connected to a second heat exchange pipeline; the heat pipe comprises a plurality of first microchannels which are arranged and independent of each other and a plurality of second microchannels which are arranged and independent of each other, wherein the first microchannels and the second microchannels are arranged and independent of each other; the first microchannels are each internally provided with a first heat exchange working medium, and the second microchannels are each internally provided with a second heat exchange working medium.

### Claim 2 (depends on 1)

The convection/radiation air conditioning terminal according to claim 1, wherein both ends of the first microchannel are respectively in contact with the first heat exchange pipeline and the second heat exchange pipeline for heat transfer; and
both ends of the second microchannel are respectively in contact with the first heat exchange pipeline and the second heat exchange pipeline for heat transfer.

### Claim 3 (depends on 2)

The convection/radiation air conditioning terminal according to claim 2, wherein the first heat exchange pipeline is provided with a first installation port, and the second heat exchange pipeline is provided with a second installation port;
one end of the first microchannel extends into the first heat exchange pipeline from the first installation port, and the other end extends into the second heat exchange pipeline from the second installation port; and
one end of the second microchannel extends into the first heat exchange pipeline from the first installation port, and the other end extends into the second heat exchange pipeline from the second installation port.

### Claim 4 (depends on 3)

The convection/radiation air conditioning terminal according to claim 3, further comprising a heat pipe shell which coats the heat pipe;
wherein the heat pipe shell is fixedly connected to the first heat exchange pipeline at the first installation port, and the heat pipe shell is fixedly connected to the second heat exchange pipeline at the second installation port.

### Claim 5 (depends on 1)

The convection/radiation air conditioning terminal according to claim 1, wherein the first microchannels and the second microchannels are alternately arranged.

### Claim 6 (depends on 1)

The convection/radiation air conditioning terminal according to claim 1, wherein the first heat exchange working medium is a heating working medium and the second heat exchange working medium is a cooling working medium.

### Claim 7

An air conditioning system, comprising:
a convection/radiation air conditioning terminal including a heat pipe, wherein one end of the heat pipe is connected to a first heat exchange pipeline, and the other end of the heat pipe is connected to a second heat exchange pipeline, the heat pipe comprising a plurality of first microchannels which are arranged and independent of each other and a plurality of second microchannels which are arranged and independent of each other, wherein the first and second microchannels are arranged and independent of each other, the first microchannels are each internally provided with a first heat exchange working medium, and the second microchannels are each internally provided with a second heat exchange working medium;
a compressor;
an outdoor unit;
a condenser; and
an evaporator;
wherein the outdoor unit, the condenser and the evaporator are all in communication with each other and arranged on the compressor, and wherein the evaporator transfers heat with a first microchannel through the first heat exchange pipeline, and the condenser transfers heat with a second microchannel through the second heat exchange pipeline.

### Claim 8 (depends on 7)

The air conditioning system according to claim 7, wherein both ends of the first microchannel are respectively in contact with the first heat exchange pipeline and the second heat exchange pipeline for heat transfer, and both ends of the second microchannel are respectively in contact with the first heat exchange pipeline and the second heat exchange pipeline for heat transfer.

### Claim 9 (depends on 8)

The air conditioning system according to claim 8, wherein the first heat exchange pipeline is provided with a first installation port, and the second heat exchange pipeline is provided with a second installation port;
wherein one end of the first microchannel extends into the first heat exchange pipeline from the first installation port, and the other end extends into the second heat exchange pipeline from the second installation port; and
wherein one end of the second microchannel extends into the first heat exchange pipeline from the first installation port, and the other end extends into the second heat exchange pipeline from the second installation port.

### Claim 10 (depends on 9)

The air conditioning system according to claim 9, wherein the convection/radiation air conditioning terminal further comprises a heat pipe shell which coats the heat pipe, and wherein the heat pipe shell is fixedly connected to the first heat exchange pipeline at the first installation port, and the heat pipe shell is fixedly connected to the second heat exchange pipeline at the second installation port.

### Claim 11 (depends on 7)

The air conditioning system according to claim 7, wherein the first microchannels and the second microchannels are alternately arranged.

### Claim 12 (depends on 7)

The air conditioning system according to claim 7, wherein the first heat exchange working medium is a heating working medium and the second heat exchange working medium is a cooling working medium.

### Claim 13 (depends on 7)

The air conditioning system according to claim 7, further comprising a three-way valve;
wherein the evaporator, the condenser and the compressor are communicated with three ports of the three-way valve respectively.

### Claim 14 (depends on 8)

The air conditioning system according to claim 8, further comprising a three-way valve;
wherein the evaporator, the condenser and the compressor are communicated with three ports of the three-way valve respectively.

### Claim 15 (depends on 9)

The air conditioning system according to claim 9, further comprising a three-way valve;
wherein the evaporator, the condenser and the compressor are communicated with three ports of the three-way valve respectively.

### Claim 16 (depends on 10)

The air conditioning system according to claim 10, further comprising a three-way valve;
wherein the evaporator, the condenser and the compressor are communicated with three ports of the three-way valve respectively.

### Claim 17 (depends on 11)

The air conditioning system according to claim 11, further comprising a three-way valve;
wherein the evaporator, the condenser and the compressor are communicated with three ports of the three-way valve respectively.

### Claim 18 (depends on 12)

The air conditioning system according to claim 12, further comprising a three-way valve;
wherein the evaporator, the condenser and the compressor are communicated with three ports of the three-way valve respectively.

### Claim 19 (depends on 7)

The air conditioning system according to claim 7, further comprising a plurality of fans;
wherein both ends of a heat pipe are each provided with at least one fan.

### Claim 20 (depends on 19)

The air conditioning system according to claim 19, wherein a side of a heat pipe shell towards a wall is provided with a fin structure, and an air flow channel is formed between the fin structure and the wall.
