A multi-medium heat exchanger

Abstract

The present invention discloses a multi-media heat exchanger, including a heat exchange chamber and a fluid medium outlet confluence chamber, wherein a first fluid medium heat exchange tube is arranged in the heat exchange chamber, and the fluid medium outlet confluence chamber is connected to the heat exchange chamber through the second fluid medium heat exchange tube, and the heat exchange chamber has a fluid medium inlet, and the fluid medium outlet confluence chamber has a fluid medium outlet. The invention solves the demand for rapid heating of the passenger compartment and defrosting of the glass when the ambient temperature is low, and can cool the passenger compartment when the ambient temperature is high, and can also heat the battery at low temperature and cool the battery at high temperature, thus realizing fast charging and discharging of the battery, and recycling the heat of the motor at high temperature, and because the technology is highly integrated, it can be miniaturized and lightweight.

Description

Technical Field

[0001] The invention relates to a heat exchanger, in particular to a multi-media heat exchanger. Background Art

[0002] With the increasing shortage of traditional fossil energy resources and the intensification of the global greenhouse effect, the country has put forward new requirements for vehicle energy conservation and emission reduction, and has made great policy support for new energy vehicles. It has become the main trend that new energy vehicles will gradually replace traditional fuel vehicles. Since the battery energy storage of electric vehicles is limited, energy conservation must be fully considered in thermal management. There are some problems as follows: 1. The passenger compartment needs to be heated quickly at low temperatures, and needs to be cooled and refrigerated at high temperatures; 2. The glass needs to be defrosted quickly at low temperatures; 3. The battery needs to be heated at low temperatures to achieve fast charging and discharging of the battery, and the battery needs to be cooled at high temperatures, and it is best that the waste heat from cooling can be used; 4. During the operation of the vehicle, the temperature of the high-power drive motor will rise after long-term operation, and it needs to be cooled; 5. In terms of heating, heat pump technology is the future development direction, because the energy efficiency ratio of heat pumps using refrigerants is often greater than 1, which can fully save energy, but it has the problems of slow heating in the early stage, low efficiency of heat pumps in low temperature environments, and insufficient power. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-media heat exchanger, which solves the demand for rapid heating of the passenger compartment and glass defrosting when the ambient temperature is low, and can cool the passenger compartment when the ambient temperature is high. It can also heat up the battery at low temperatures and cool down the battery at high temperatures, thereby realizing fast charging and discharging of the battery. The heat of the motor at high temperatures is recycled, and the technology is highly integrated, which can achieve miniaturization and lightweight.

[0004] The present invention adopts the following technical solutions to achieve the above-mentioned invention object:

[0005] The present invention provides a multi-medium heat exchanger, comprising a heat exchange chamber and a fluid medium outlet confluence chamber, wherein a first fluid medium heat exchange tube is arranged in the heat exchange chamber, the fluid medium outlet confluence chamber is connected to the heat exchange chamber through the second fluid medium heat exchange tube, the heat exchange chamber has a fluid medium inlet, and the fluid medium outlet confluence chamber has a fluid medium outlet.

[0006] Furthermore, the heat exchange cavity has at least two fluid medium inlets, one of which is connected to the first fluid medium heat exchange tube, and the other fluid medium inlets are connected to the heat exchange cavity.

[0007] Furthermore, the multi-medium heat exchanger also includes a fluid medium inlet confluence chamber, the first fluid medium heat exchange tube and / or heat exchange chamber is connected to the fluid medium inlet confluence chamber, and the fluid medium inlet confluence chamber is connected to the fluid medium outlet confluence chamber through the second fluid medium heat exchange tube.

[0008] Further, the fluid medium inlet confluence chamber comprises a first fluid medium inlet confluence chamber and a second fluid medium inlet confluence chamber, the first fluid medium heat exchange tube is connected to the first fluid medium inlet confluence chamber, and the heat exchange chamber is connected to the second fluid medium inlet confluence chamber;

[0009] The fluid medium outlet confluence chamber includes a first fluid medium outlet confluence chamber and a second fluid medium outlet confluence chamber. The first fluid medium inlet confluence chamber and the first fluid medium outlet confluence chamber, and the second fluid medium inlet confluence chamber and the second fluid medium outlet confluence chamber are both connected through the second fluid medium heat exchange tube.

[0010] Furthermore, the first fluid medium heat exchange tube and the first fluid medium inlet confluence chamber, and the heat exchange chamber and the second fluid medium inlet confluence chamber are both connected through a flow guide pipe, and a control valve is provided in the flow guide pipe.

[0011] Furthermore, a plurality of heat exchange fins are provided on the surface of the first fluid medium heat exchange tube and / or the second fluid medium heat exchange tube.

[0012] Furthermore, the multi-medium heat exchanger further comprises a first heater, and the first heater acts on the heat exchange cavity or the first fluid medium heat exchange tube.

[0013] Furthermore, the first heater includes a first heater core, a first heater wire, and a plurality of first heater heat sinks, the heating end of the first heater core extends into the heat exchange cavity or the first fluid medium heat exchange tube, the plurality of first heater heat sinks are arranged on the outer surface of the heating end of the first heater core, and the base ends are exposed inside and outside the heat exchange cavity or the first fluid medium heat exchange tube and are connected to the first heater wire.

[0014] Furthermore, the multi-media heat exchanger also includes a second heater, and the second heater is arranged on one side of the second fluid medium heat exchange tube.

[0015] Furthermore, the second heater includes a second heater core, a second heater wire, and a plurality of second heater heat sinks. The heating end of the second heater core is arranged side by side on one side of the second fluid medium heat exchange tube. The plurality of second heater heat sinks are arranged on the outer surface of the heating end of the second heater core, and the base end is connected to the second heater wire.

[0016] Furthermore, the second heater fins and the heat exchange fins on the surface of the second fluid medium heat exchange tube are integrally formed.

[0017] The beneficial effects of the present invention are as follows:

[0018] It solves the demand for rapid heating of the passenger compartment and defrosting of the glass when the ambient temperature is low, and can cool the passenger compartment when the ambient temperature is high. It can also heat up the battery at low temperatures and cool down the battery at high temperatures, achieving fast charging and discharging of the battery, recycling the heat of the motor at high temperatures, and because this technology is highly integrated, it can be miniaturized and lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a multi-media heat exchanger provided according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A partial cross-section of Figure 1 ;

[0021] Figure 3 for Figure 1 A partial cross-section of Figure 2 ;

[0022] Figure 4 for Figure 1 A partial cross-section of Figure 3 ;

[0023] Figure 5 for Figure 1 A schematic diagram of the integral molding of the heat exchange fins of the second heater and the heat exchange fins on the surface of the second fluid medium heat exchange tube;

[0024] Figure 6 for Figure 1 Schematic diagram of the usage environment. DETAILED DESCRIPTION

[0025] like Figures 1 to 5 As shown, a multi-media heat exchanger includes a heat exchange chamber 10 and a fluid medium outlet confluence chamber 20. A first fluid medium heat exchange tube 30 is arranged in the heat exchange chamber 10. The fluid medium outlet confluence chamber 20 is connected to the heat exchange chamber 10 through a second fluid medium heat exchange tube 40. The heat exchange chamber 10 has a fluid medium inlet 11, and the fluid medium outlet confluence chamber 20 has a fluid medium outlet 21.

[0026] The heat exchange chamber 10 has two fluid medium inlets 11 , one of the fluid medium inlets 11 is connected to the first fluid medium heat exchange pipe 30 , and the other fluid medium inlet 11 is connected to the heat exchange chamber 10 .

[0027] The multi-medium heat exchanger also includes a fluid medium inlet confluence chamber 50 , the first fluid medium heat exchange tube 30 and the heat exchange chamber 10 are connected to the fluid medium inlet confluence chamber 50 , and the fluid medium inlet confluence chamber 50 is connected to the fluid medium outlet confluence chamber 20 through the second fluid medium heat exchange tube 40 .

[0028] The fluid medium inlet confluence chamber 50 includes a first fluid medium inlet confluence chamber 51 and a second fluid medium inlet confluence chamber 52. The first fluid medium heat exchange tube 30 is connected to the first fluid medium inlet confluence chamber 51. The heat exchange chamber 10 is connected to the second fluid medium inlet confluence chamber 52. The fluid medium outlet confluence chamber 20 includes a first fluid medium outlet confluence chamber 22 and a second fluid medium outlet confluence chamber 23. The first fluid medium inlet confluence chamber 51 and the first fluid medium outlet confluence chamber 22, as well as the second fluid medium inlet confluence chamber 52 and the second fluid medium outlet confluence chamber 23 are all connected through the second fluid medium heat exchange tube 40.

[0029] The first fluid medium heat exchange tube 30 and the first fluid medium inlet confluence chamber 51 , as well as the heat exchange chamber 10 and the second fluid medium inlet confluence chamber 52 are connected via a flow guide pipe 60 , in which a control valve 70 is disposed.

[0030] A plurality of heat exchange fins are disposed on the surfaces of the first fluid medium heat exchange tube 30 and the second fluid medium heat exchange tube 40 , and the heat can be better exchanged through the heat exchange fins to achieve the purpose of regulating the air temperature.

[0031] The multi-media heat exchanger also includes a first heater 80, which acts on the heat exchange cavity 10 or the first fluid medium heat exchange tube 30. The first heater 80 includes a first heater core 81, a first heater wire, and a plurality of first heater 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 fins 82 are arranged on the outer surface of the heating end of the first heater core 81, and the base end is exposed outside the heat exchange cavity 10 or the first fluid medium heat exchange tube 30 and connected to the first heater wire. When the temperature of the fluid medium in the heat exchange cavity 10 does not reach the required temperature, the first heater 80 can be turned on to heat the fluid medium, so as to quickly raise the temperature to the required temperature.

[0032] The multi-media heat exchanger also includes a second heater 90, which is arranged on one side of the second fluid medium heat exchange tube 40. The second heater 90 includes a second heater core 91, a second heater wire 92, and a plurality of second heater fins 93. The heating end of the second heater core 91 is arranged side by side on one side of the second fluid medium heat exchange tube 40. The plurality of second heater fins 93 are arranged on the outer surface of the heating end of the second heater core 91, and the base end is connected to the second heater wire 92. When the vehicle needs to be heated quickly when starting (such as defrosting the car), the second heater 90 is directly turned on to heat the air; when the vehicle needs to be heated quickly when starting (such as defrosting the car), the second heater 90 is directly turned on to heat the air.

[0033] The second heater fins 93 are integrally formed with the heat exchange fins on the surface of the second fluid medium heat exchange tube 40. The same medium or different media can flow through the plurality of second fluid medium heat exchange tubes 40. When only one medium is working, a larger heat sink area can be obtained.

[0034] Reference Figure 6 When the first fluid medium is a refrigerant for air conditioning, the first fluid medium heat exchange pipe 30 is connected with a compressor, an evaporator, a throttle valve, etc. to form a heat pump system. The operation of the compressor can convert the liquid in the first fluid medium heat exchange pipe 30 into a high-temperature or low-temperature liquid.

[0035] When the second fluid medium liquid is a coolant, the second fluid medium flow channel is connected to the motor cooling system and the battery cooling system.

[0036] When the car battery is difficult to start at low temperatures, the first fluid medium in the first fluid medium heat exchange tube 30 can exchange heat with the second fluid medium in the heat exchange chamber 10 to increase the temperature of the second fluid medium, and the battery can be heated by the high-temperature second fluid medium.

[0037] When the battery or motor works for a certain period of time, the temperature of the battery or motor will rise. At this time, the heat exchange plate on the second fluid medium heat exchange tube 40 can be heat exchanged by a fan, and the heat exchanged can be used to heat the passenger compartment, achieving the purpose of recycling the waste heat of the battery and motor.

[0038] When the ambient temperature is low, rapid heating is required when starting the vehicle, but the first fluid medium system works through a compressor, and the temperature rises slowly. The second heater 90 or the first heater 80 can be turned on to achieve the purpose of rapid heating. Especially when defrosting the glass, the defrosting requirement can only be achieved through electric heating assistance.

[0039] The above specifically describes the preferred implementation of the present invention. Of course, the present invention can also take a form different from the above-mentioned implementation mode. Equivalent changes or corresponding modifications made by technicians familiar with the field without violating the spirit of the present invention should fall within the scope of protection of the present invention.

Claims

1. A multi-media heat exchanger, characterized in that: It comprises a heat exchange cavity and a fluid medium outlet confluence cavity, wherein a first fluid medium heat exchange tube is arranged in the heat exchange cavity, the fluid medium outlet confluence cavity is connected with the heat exchange cavity through a second fluid medium heat exchange tube, the heat exchange cavity has a fluid medium inlet, and the fluid medium outlet confluence cavity has a fluid medium outlet; The heat exchange cavity has at least two fluid medium inlets, one of which is connected to the first fluid medium heat exchange tube, and the other fluid medium inlets are connected to the heat exchange cavity; The multi-medium heat exchanger further comprises a fluid medium inlet confluence cavity, the first fluid medium heat exchange tube and / or heat exchange cavity is connected to the fluid medium inlet confluence cavity, and the fluid medium inlet confluence cavity is connected to the fluid medium outlet confluence cavity through the second fluid medium heat exchange tube; The fluid medium inlet confluence chamber includes a first fluid medium inlet confluence chamber and a second fluid medium inlet confluence chamber, the first fluid medium heat exchange tube is connected to the first fluid medium inlet confluence chamber, and the heat exchange chamber is connected to the second fluid medium inlet confluence chamber; the fluid medium outlet confluence chamber includes a first fluid medium outlet confluence chamber and a second fluid medium outlet confluence chamber, the first fluid medium inlet confluence chamber and the first fluid medium outlet confluence chamber, and the second fluid medium inlet confluence chamber and the second fluid medium outlet confluence chamber are both connected through the second fluid medium heat exchange tube; The first fluid medium heat exchange tube and the first fluid medium inlet confluence cavity, and the heat exchange cavity and the second fluid medium inlet confluence cavity are both connected through a flow guide tube, and a control valve is arranged in the flow guide tube; The first fluid medium is a refrigerant, and the second fluid medium is a cooling liquid.

2. A multi-media heat exchanger according to claim 1, characterized in that: The multi-media heat exchanger further comprises a first heater, which acts on the heat exchange cavity or the first fluid medium heat exchange tube.

3. A multi-media heat exchanger according to claim 2, characterized in that: The first heater includes a first heater core, a first heater wire, and a plurality of first heater heat sinks. The heating end of the first heater core extends into the first fluid medium heat exchange tube or into the heat exchange cavity. The plurality of first heater heat sinks are arranged on the outer surface of the heating end of the first heater core, and the base ends are exposed inside the first fluid medium heat exchange tube or outside the heat exchange cavity and are connected to the first heater wire.

4. A multi-media heat exchanger according to claim 3, characterized in that: The multi-media heat exchanger further includes a second heater, which is arranged on one side of the second fluid medium heat exchange tube.

5. The multi-media heat exchanger according to claim 4, characterized in that: The second heater includes a second heater core, a second heater wire, and a plurality of second heater heat sinks. The heating end of the second heater core is arranged side by side on one side of the second fluid medium heat exchange tube. The plurality of second heater heat sinks are arranged on the outer surface of the heating end of the second heater core, and the base end is connected to the second heater wire.

6. The multi-media heat exchanger according to claim 5, characterized in that: 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.

7. The multi-media heat exchanger according to claim 6, characterized in that: The second heater fins are integrally formed with the heat exchange fins on the surface of the second fluid medium heat exchange tube.

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