CN112268478A - Multi-medium heat exchanger - Google Patents
Multi-medium heat exchanger Download PDFInfo
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- CN112268478A CN112268478A CN202011109305.8A CN202011109305A CN112268478A CN 112268478 A CN112268478 A CN 112268478A CN 202011109305 A CN202011109305 A CN 202011109305A CN 112268478 A CN112268478 A CN 112268478A
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- fluid medium
- heat exchange
- cavity
- heater
- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a multi-medium heat exchanger which comprises a heat exchange cavity and a fluid medium outlet converging cavity, wherein a first fluid medium heat exchange tube is arranged in the heat exchange cavity, the fluid medium outlet converging cavity is communicated with the heat exchange cavity through a second fluid medium heat exchange tube, the heat exchange cavity is provided with a fluid medium inlet, and the fluid medium outlet converging cavity is provided with a fluid medium outlet. The rapid heating requirement for heating the passenger compartment and defrosting the glass when the environment is low is met, the temperature of the passenger compartment can be reduced when the environment is high, the temperature of the battery can be increased under low temperature, the battery under high temperature is reduced, the rapid charging and rapid discharging of the battery are realized, the heat of the motor when the motor is high is recycled, and the miniaturization and the light weight can be realized due to the high integration of the technology.
Description
Technical Field
The invention relates to a heat exchanger, in particular to a multi-medium heat exchanger.
Background
With the increasing tension of the traditional fossil energy resources, the aggravation of global greenhouse effect and the problem of domestic environmental pollution, the nation puts forward new requirements on energy conservation and emission reduction of vehicles and carries out vigorous policy support on new energy automobiles. The gradual replacement of the traditional fuel automobile by the new energy automobile is the current main trend. Since the battery energy storage of the electric vehicle is limited, the energy saving is fully considered in the aspect of thermal management. There are some problems as follows: 1. the passenger cabin needs to be heated quickly at low temperature and needs to be cooled and refrigerated at high temperature; 2. the glass needs to be defrosted quickly at low temperature; 3. the battery needs to be heated at low temperature to realize quick charging and quick discharging, the battery needs to be cooled at high temperature, and the cooled waste heat can be preferably utilized; 4. during the running of the vehicle, the working temperature of the high-power driving motor can rise for a long time, and the temperature needs to be reduced; 5. the heat pump technology in the aspect of heating is the direction of future development, because the energy efficiency ratio of the heat pump adopting the refrigerant is usually more than 1, the energy can be fully saved, but the problems of low heating speed in the early stage, low heat pump efficiency in a low-temperature environment and insufficient power exist.
Disclosure of Invention
The invention aims to provide a multi-medium heat exchanger, which meets the rapid heating requirements of heating a passenger compartment and defrosting glass when the environment is low in temperature, can cool the passenger compartment when the environment is high in temperature, can also heat a battery at low temperature, can cool the battery at high temperature, realizes rapid charging and rapid discharging of the battery, recycles heat when a motor is high in temperature, and can realize miniaturization and light weight due to high integration of the technology.
The invention adopts the following technical scheme for realizing the aim of the invention:
the invention provides a multi-medium heat exchanger which comprises a heat exchange cavity and a fluid medium outlet converging cavity, wherein a first fluid medium heat exchange tube is arranged in the heat exchange cavity, the fluid medium outlet converging cavity is communicated with the heat exchange cavity through a second fluid medium heat exchange tube, the heat exchange cavity is provided with a fluid medium inlet, and the fluid medium outlet converging cavity is provided with a fluid medium outlet.
Furthermore, the heat exchange cavity is provided with at least two fluid medium inlets, one of the fluid medium inlets is communicated with the first fluid medium heat exchange tube, and the other fluid medium inlets are communicated with the heat exchange cavity.
Further, the multi-medium heat exchanger also comprises a fluid medium inlet converging cavity, the first fluid medium heat exchange tube and/or the heat exchange cavity is/are communicated with the fluid medium inlet converging cavity, and the fluid medium inlet converging cavity is communicated with the fluid medium outlet converging cavity through the second fluid medium heat exchange tube.
Furthermore, the fluid medium inlet converging cavity comprises a first fluid medium inlet converging cavity and a second fluid medium inlet converging cavity, the first fluid medium heat exchange tube is communicated with the first fluid medium inlet converging cavity, and the heat exchange cavity is communicated with the second fluid medium inlet converging cavity;
the fluid medium outlet converging cavity comprises a first fluid medium outlet converging cavity and a second fluid medium outlet converging cavity, wherein the first fluid medium inlet converging cavity is communicated with the first fluid medium outlet converging cavity, and the second fluid medium inlet converging cavity is communicated with the second fluid medium outlet converging cavity through the second fluid medium heat exchange tube.
Furthermore, the first fluid medium heat exchange tube and the first fluid medium inlet converging cavity, and the heat exchange cavity and the second fluid medium inlet converging cavity are communicated through a flow guide tube, and a control valve is arranged in the flow guide tube.
Furthermore, a plurality of heat exchange fins are arranged on the surface of the first fluid medium heat exchange tube and/or the second fluid medium heat exchange tube.
Further, the multi-medium heat exchanger also comprises a first heater, and the first heater acts on the heat exchange cavity or the first fluid medium heat exchange pipe.
Furthermore, the first heater comprises a first heater core body, a first heater lead and a plurality of first heater radiating fins, the heating end of the first heater core body extends into the heat exchange cavity or the first fluid medium heat exchange tube, the plurality of first heater radiating fins are arranged on the outer surface of the heating end of the first heater core body, and the base end of the first heater radiating fin is exposed out of the heat exchange cavity or the first fluid medium heat exchange tube and connected with the first heater lead.
Further, the multi-medium heat exchanger also comprises a second heater, and the second heater is arranged on one side of the second fluid medium heat exchange tube.
Further, the second heater comprises a second heater core body, a second heater lead and a plurality of second heater radiating fins, the heating end of the second heater core body is arranged on one side of the second fluid medium heat exchange tube side by side, the plurality of second heater radiating fins are arranged on the outer surface of the heating end of the second heater core body, and the base end of each second heater radiating fin is connected with the second heater lead.
Further, the second heater radiating fins and the heat exchange fins on the surface of the second fluid medium heat exchange tube are integrally formed.
The invention has the following beneficial effects:
the rapid heating requirement for heating the passenger compartment and defrosting the glass when the environment is low is met, the temperature of the passenger compartment can be reduced when the environment is high, the temperature of the battery can be increased under low temperature, the battery under high temperature is reduced, the rapid charging and rapid discharging of the battery are realized, the heat of the motor when the motor is high is recycled, and the miniaturization and the light weight can be realized due to the high integration of the technology.
Drawings
FIG. 1 is a schematic diagram of a multi-media heat exchanger provided in accordance with an embodiment of the present invention;
FIG. 2 is a first partial cross-sectional view of FIG. 1;
FIG. 3 is a second partial cross-sectional view of FIG. 1;
FIG. 4 is a third schematic partial cross-sectional view of FIG. 1;
FIG. 5 is a schematic view of the second heater fin of FIG. 1 integrally formed with a heat exchanger fin at a surface of a second fluid medium heat exchange tube;
fig. 6 is a schematic view of the use environment of fig. 1.
Detailed Description
As shown in fig. 1 to 5, a multimedia heat exchanger includes a heat exchange cavity 10 and a fluid medium outlet converging cavity 20, wherein a first fluid medium heat exchange tube 30 is arranged in the heat exchange cavity 10, the fluid medium outlet converging cavity 20 is communicated with the heat exchange cavity 10 through a second fluid medium heat exchange tube 40, the heat exchange cavity 10 has a fluid medium inlet 11, and the fluid medium outlet converging cavity 20 has a fluid medium outlet 21.
The heat exchange cavity 10 has two fluid medium inlets 11, wherein one fluid medium inlet 11 is communicated with the first fluid medium heat exchange tube 30, and the other fluid medium inlet 11 is communicated with the heat exchange cavity 10.
The multi-medium heat exchanger also comprises a fluid medium inlet converging cavity 50, the first fluid medium heat exchange pipe 30 and the heat exchange cavity 10 are communicated with the fluid medium inlet converging cavity 50, and the fluid medium inlet converging cavity 50 is communicated with the fluid medium outlet converging cavity 20 through the second fluid medium heat exchange pipe 40.
The fluid medium inlet converging cavity 50 comprises a first fluid medium inlet converging cavity 51 and a second fluid medium inlet converging cavity 52, the first fluid medium heat exchange tube 30 is communicated with the first fluid medium inlet converging cavity 51, the heat exchange cavity 10 is communicated with the second fluid medium inlet converging cavity 52, the fluid medium outlet converging cavity 20 comprises a first fluid medium outlet converging cavity 22 and a second fluid medium outlet converging cavity 23, the first fluid medium inlet converging cavity 51 is communicated with the first fluid medium outlet converging cavity 22, and the second fluid medium inlet converging cavity 52 is communicated with the second fluid medium outlet converging cavity 23 through the second fluid medium heat exchange tube 40.
The first fluid medium heat exchange tube 30 is communicated with the first fluid medium inlet converging cavity 51, and the heat exchange cavity 10 is communicated with the second fluid medium inlet converging cavity 52 through a flow guide tube 60, and a control valve 70 is arranged in the flow guide tube 60.
The surfaces of the first fluid medium heat exchange tube 30 and the second fluid medium heat exchange tube 40 are provided with a plurality of heat exchange fins, so that heat can be better exchanged through the heat exchange fins, and the purpose of adjusting the temperature of air is achieved.
The multi-medium heat exchanger further comprises a first heater 80, the first heater 80 acts on the heat exchange cavity 10 or the first fluid medium heat exchange tube 30, the first heater 80 comprises a first heater core 81, a first heater lead and a plurality of first heater radiating fins 82, the heating end of the first heater core 81 extends into the heat exchange cavity 10 or the first fluid medium heat exchange tube 30, the plurality of first heater radiating fins 82 are arranged on the outer surface of the heating end of the first heater core 81, and the base end of the first heater radiating fin is exposed out of the heat exchange cavity 10 or the first fluid medium heat exchange tube 30 and connected with the first heater lead. When the temperature of the fluid medium in the heat exchange cavity 10 does not reach the required temperature, the fluid medium can be heated by turning on the first heater 80, so as to achieve the purpose of rapidly raising the temperature to reach the required temperature.
The multi-medium heat exchanger further comprises a second heater 90, the second heater 90 is arranged on one side of the second fluid medium heat exchange tube 40, the second heater 90 comprises a second heater core 91, a second heater lead 92 and a plurality of second heater radiating fins 93, the heating end of the second heater core 91 is arranged on one side of the second fluid medium heat exchange tube 40 side by side, the plurality of second heater radiating fins 93 are arranged on the outer surface of the heating end of the second heater core 91, and the base end of the second heater radiating fins is connected with the second heater lead 92. When the vehicle needs to be heated quickly (such as defrosting the vehicle), the second heater 90 is directly started to heat the air; when the vehicle is started and needs rapid heating (such as defrosting of the automobile), the second heater 90 is directly started to heat the air.
The second heater heat sink 93 and the heat sink on the surface of the second fluid medium heat exchange tube 40 are integrally formed, and the same medium or different media can flow in the plurality of second fluid medium heat exchange tubes 40, so that a larger heat sink area can be obtained when only one medium works.
Referring to fig. 6, when the first fluid medium is a refrigerant for an air conditioner, the first fluid medium heat exchange pipe 30 is connected to a compressor, an evaporator, a throttle valve, and the like to constitute a heat pump system. The compressor operates to change the liquid in the first fluid medium heat exchange tube 30 to a high or low temperature liquid.
When the second fluid medium liquid is cooling liquid, the second fluid medium flow channel is connected with a motor cooling system and a battery cooling system.
When the automobile battery is difficult to start at low temperature, the first fluid medium in the first fluid medium heat exchange pipe 30 can exchange heat with the second fluid medium in the heat exchange cavity 10 to increase the temperature of the second fluid medium, and the battery can be heated by the high-temperature second fluid medium.
When the battery or the motor works for a certain time, the temperature of the battery or the motor is increased. At this time, the heat exchange fins on the second fluid medium heat exchange tube 40 can exchange heat through the fan, and the exchanged heat can be used for heating the passenger compartment, so that the purpose of recycling the waste heat of the battery and the motor is achieved.
When the ambient temperature is low and the vehicle starts, rapid heating is required, but the first fluid medium system is operated by the compressor and the temperature rise rate is slow. The second heater 90 or the first heater 80 may be turned on for the purpose of rapid heating. Especially when the glass is defrosted, the defrosting requirement can be met only by electric heating assistance.
While the preferred embodiments of the present invention have been illustrated and described, it will be appreciated that the invention may be embodied otherwise than as specifically described and that equivalent alterations and modifications, which may be effected thereto by those skilled in the art without departing from the spirit of the invention, are deemed to be within the scope and spirit of the invention.
Claims (11)
1. The multi-medium heat exchanger is characterized by comprising a heat exchange cavity and a fluid medium outlet converging cavity, wherein a first fluid medium heat exchange tube is arranged in the heat exchange cavity, the fluid medium outlet converging cavity is communicated with the heat exchange cavity through a second fluid medium heat exchange tube, the heat exchange cavity is provided with a fluid medium inlet, and the fluid medium outlet converging cavity is provided with a fluid medium outlet.
2. A multimedia heat exchanger according to claim 1 wherein the heat exchange chamber has at least two fluid medium inlets, one of which is in communication with the first fluid medium heat exchange tubes and the remaining of which is in communication with the heat exchange chamber.
3. A multimedia heat exchanger according to claim 2 further comprising a fluid medium inlet manifold chamber, the first fluid medium heat exchange tubes and/or heat exchange chambers being in communication with the fluid medium inlet manifold chamber, the fluid medium inlet manifold chamber being in communication with the fluid medium outlet manifold chamber via the second fluid medium heat exchange tubes.
4. A multi-media heat exchanger according to claim 3 wherein the fluid medium inlet manifold chambers comprise a first fluid medium inlet manifold chamber, a second fluid medium inlet manifold chamber, the first fluid medium heat exchange tubes are in communication with the first fluid medium inlet manifold chamber, and the heat exchange chambers are in communication with the second fluid medium inlet manifold chamber;
the fluid medium outlet converging cavity comprises a first fluid medium outlet converging cavity and a second fluid medium outlet converging cavity, wherein the first fluid medium inlet converging cavity is communicated with the first fluid medium outlet converging cavity, and the second fluid medium inlet converging cavity is communicated with the second fluid medium outlet converging cavity through the second fluid medium heat exchange tube.
5. The multi-media heat exchanger according to claim 4, wherein the first fluid medium heat exchange tube and the first fluid medium inlet converging cavity are communicated with each other, and the heat exchange cavity and the second fluid medium inlet converging cavity are communicated with each other through a flow guide tube, and a control valve is arranged in the flow guide tube.
6. A multi-medium heat exchanger according to claim 4 or 5, further comprising a first heater acting within the heat exchange chamber or first fluid medium heat exchange tube.
7. The multi-media heat exchanger as claimed in claim 6, wherein the first heater includes a first heater core, a first heater wire, and a plurality of first heater fins, the heating end of the first heater core extends into the first fluid heat exchange tube or the heat exchange cavity, the plurality of first heater fins are disposed on the outer surface of the heating end of the first heater core, and the base end is exposed in the first fluid heat exchange tube or the heat exchange cavity and connected to the first heater wire.
8. A multimedia heat exchanger according to claim 7 further comprising a second heater disposed on one side of the second fluid medium heat exchange tube.
9. The multimedia heat exchanger as claimed in claim 8, wherein the second heater includes a second heater core, a second heater lead, and a plurality of second heater fins, the heat generating end of the second heater core is disposed side by side on one side of the second fluid medium heat exchanging pipe, the plurality of second heater fins are disposed on the outer surface of the heat generating end of the second heater core, and the base end is connected to the second heater lead.
10. A multimedia heat exchanger according to claim 9, wherein the surface of the first fluid medium heat exchange tube and/or the second fluid medium heat exchange tube is provided with fins.
11. A multi-media heat exchanger according to claim 10 wherein the second heater fin is integrally formed with the fins of the second fluid medium heat exchange tube surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011109305.8A CN112268478A (en) | 2020-10-16 | 2020-10-16 | Multi-medium heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011109305.8A CN112268478A (en) | 2020-10-16 | 2020-10-16 | Multi-medium heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112268478A true CN112268478A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011109305.8A Pending CN112268478A (en) | 2020-10-16 | 2020-10-16 | Multi-medium heat exchanger |
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| CN (1) | CN112268478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458435A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放青岛汽车有限公司 | Composite heat dissipation device |
-
2020
- 2020-10-16 CN CN202011109305.8A patent/CN112268478A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458435A (en) * | 2022-02-16 | 2022-05-10 | 一汽解放青岛汽车有限公司 | Composite heat dissipation device |
| CN114458435B (en) * | 2022-02-16 | 2023-08-29 | 一汽解放青岛汽车有限公司 | Composite heat dissipation device |
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