CN221036995U - Vehicle heat exchanger with heating function - Google Patents
Vehicle heat exchanger with heating function Download PDFInfo
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- CN221036995U CN221036995U CN202323032253.0U CN202323032253U CN221036995U CN 221036995 U CN221036995 U CN 221036995U CN 202323032253 U CN202323032253 U CN 202323032253U CN 221036995 U CN221036995 U CN 221036995U
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- heat exchanger
- stainless steel
- heating
- exchanger body
- refrigerant
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 64
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 57
- 239000010935 stainless steel Substances 0.000 claims abstract description 57
- 239000003507 refrigerant Substances 0.000 claims abstract description 53
- 239000000110 cooling liquid Substances 0.000 claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims description 20
- 238000005219 brazing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000007650 screen-printing Methods 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a vehicle heat exchanger with a heating function, which comprises a heat exchanger body and a heating mechanism, wherein the heat exchanger body is of an aluminum rectangular block structure, a refrigerant flow channel is arranged in the heat exchanger body, refrigerant inflow pipes and refrigerant outflow pipes are arranged at two sides of the heat exchanger body, the heating mechanism comprises a stainless steel round pipe and a heating thick film, the heat exchanger body is wrapped by the stainless steel round pipe with two closed ends, the refrigerant inflow pipes and the refrigerant outflow pipes extend outwards through the stainless steel round pipe, a cooling liquid inlet and a cooling liquid outlet are arranged at two sides of the peripheral surface of the stainless steel round pipe, a cavity between the stainless steel round pipe and the heat exchanger body is a cooling liquid flow channel, the heating thick film surrounds and covers the middle part of the stainless steel round pipe, the heating thick film heats the stainless steel round pipe, the stainless steel round pipe heats cooling liquid flowing in the cooling liquid flow channel, and the cooling liquid transfers heat into the cooling liquid flow channel through the heat exchanger body; the utility model can meet the requirement of heat pump operation by heating the surface of the heat exchanger, and has simple structure and high heating efficiency.
Description
Technical Field
The utility model belongs to the technical field of electric automobile heat pump systems, and particularly relates to a vehicle heat exchanger with a heating function.
Background
The range of the electric automobile in winter is greatly affected, because the electric automobile does not have an engine, the high temperature generated by the engine cannot be recovered, and the temperature in the automobile is improved, so most electric automobiles can only directly provide a heat source through PTC heating, and the range of the automobile can be greatly reduced by a heating mode of PTC. In order to solve the problem, the heat pump system of the household air conditioner enters the automobile manufacturing, the heat pump heating is realized by absorbing heat in the air outside the automobile, the heat pump heating is conveyed into a carriage by utilizing a compressor, the technology of heating by consuming a large amount of heat energy is not needed, the temperature of a battery can be increased, and the endurance mileage is prolonged. The heat pump system has the core structure of an automobile heat exchanger, wherein the existing automobile heat exchanger is provided with 4 inlets and outlets, namely a cooling liquid inlet and outlet and a cooling medium inlet and outlet, respectively, and cooling liquid and cooling medium are not communicated in a heat exchanger channel. When the refrigerant enters the heat exchanger, the refrigerant is in a gas-liquid mixture state, the area is a low-pressure end of the heat pump, the evaporation temperature is low, and the refrigerant needs to absorb heat and gasify. The heat required by the refrigerant is obtained from the cooling liquid, so that the inlet temperature of the cooling liquid is relatively high, and the outlet temperature is low; the refrigerant inlet temperature is lower, and the outlet temperature is higher. In extremely cold weather conditions, for example, the temperature of the cooling liquid passing through the heat exchanger is lower below-10 ℃, and the cooling liquid can hardly absorb heat from the cooling liquid, so that the heat pump system can not work normally or the system efficiency is extremely low. Therefore, many mainstream vehicle enterprises still adopt the scheme that heat pump and PTC heating are used together, under extremely cold weather, add high-power heater alone in the electric automobile and realize the demand of thermal management system to heat under the low temperature environment, this kind of external heater heat production inefficiency, influence great to pure electric vehicles range mileage is not very ideal solution.
Disclosure of utility model
Aiming at the problems and the technical requirements, the utility model provides the vehicle heat exchanger with the heating function, which can realize the requirement of the heat pump system for external heat by heating the surface of the heat exchanger in extremely cold weather so as to meet the relatively efficient operation of the heat pump.
The technical scheme of the utility model is as follows: the utility model provides a take heat exchanger for vehicle of heating function, includes heat exchanger body and heating mechanism, the heat exchanger body is aluminium system rectangle cubic structure, be the refrigerant runner in the heat exchanger body, heat exchanger body both sides are equipped with refrigerant inflow pipe and refrigerant outflow pipe, heating mechanism includes stainless steel pipe and heating thick film, both ends confined stainless steel pipe wraps up the heat exchanger body in, refrigerant inflow pipe and refrigerant outflow pipe pass stainless steel pipe outwards stretch out, both sides of stainless steel pipe global are equipped with coolant inlet and coolant outlet, the cavity between stainless steel pipe and the heat exchanger body is the coolant runner, the heating thick film encircles the middle part of covering at the stainless steel pipe, the heating thick film circular telegram is to stainless steel pipe heating, the stainless steel pipe heats the coolant that flows in the coolant runner, the coolant passes through the heat exchanger body with heat transfer to in the refrigerant runner. Among the above-mentioned scheme, stainless steel pipe wraps up the heat exchanger body in, and the heating thick film is to stainless steel pipe heating, and stainless steel pipe is direct to coolant flow path heating, makes the coolant temperature rise faster, and coolant after the heating can give the coolant flow path with heat transfer, satisfies the operation demand of coolant.
Further, a plurality of heat transfer baffles are arranged on the inner wall of the stainless steel round tube, the heat transfer baffles are arranged on the covering part of the heating thick film, one end of each heat transfer baffle extends into the cooling liquid flow passage of the heat exchanger body, and the heat transfer baffles are equidistantly spaced and parallel to each other. The stainless pipe round pipe transfers heat to the cooling liquid flow channel through the heat transfer baffle, and one end of the heat transfer baffle directly stretches into the cooling liquid flow channel, so that disturbance can be formed on cooling liquid when the cooling liquid is heated, the cooling liquid flow speed is increased, heat exchange is facilitated, the heat transfer baffle can limit the heat exchanger body to a certain extent, and shaking is avoided.
Further, the heat exchanger body comprises a plurality of layers of aluminum plates which are arranged in parallel in a stacked mode, the peripheries of the aluminum plates are formed by vacuum brazing and welding, and the thickness range of a single aluminum plate is 0.3mm-0.5mm.
Further, a gap between the aluminum plates in the heat exchanger body is a refrigerant flow channel, a through hole with the same pipe diameter is formed in a position opposite to the refrigerant inflow pipe and the refrigerant outflow pipe, and the refrigerant in the refrigerant flow channel flows into or flows out of the heat exchanger body through the through hole.
Further, the height of the gap between the aluminum plates is 1.0mm-1.3mm.
Further, the thickness of the stainless steel circular tube is 1.5mm, and the heating thick film is coated on the outer circumferential surface of the stainless steel circular tube through screen printing. Thick film heating is a process of combining superconducting ceramic materials into slurry by using micro powder and a bonding solvent, printing the slurry on a substrate in a circuit wiring or pattern mode by using a screen printing technology, and sintering and forming, so that the heated thick film is not easy to fall off, has good adhesion and has good heating stability.
Furthermore, the two end surfaces of the stainless steel circular tube are connected with the tube body through welding, and the refrigerant inflow tube, the refrigerant outflow tube and the stainless steel circular tube are welded through brazing.
The utility model has the beneficial effects that: according to the utility model, the stainless steel round tube is arranged outside the heat exchanger body, so that the heat exchanger body is sealed inside, and the stainless steel round tube has very high rigidity, so that the heat exchanger body can be separated from the external environment to a certain extent, and the heat loss of the heat exchanger is reduced; the heating thick film attached to the outer surface of the stainless pipe round tube can heat the stainless pipe round tube, heat is transferred to the cooling liquid flow channel through the heat transfer baffle plate, the flowing cooling liquid is directly heated, the heat transfer surface area is increased by the aid of the plurality of heat transfer baffle plates, heat conduction efficiency is effectively improved, and mounting stability between the heat exchanger body and the stainless pipe is improved.
Drawings
FIG. 1 is an exterior three-dimensional view of a heat exchanger for a vehicle of the present utility model;
FIG. 2 is an axial cross-sectional view of a heat exchanger for a vehicle;
FIG. 3 is a view of the inside and outside of the tube body after the stainless steel tube is removed;
FIG. 4 is a block diagram of a stainless steel round tube;
FIG. 5 is a cross-sectional view at A in FIG. 4;
Marked in the figure as: the heat exchanger comprises a heat exchanger body 1, an aluminum plate 11, a refrigerant inflow pipe 12, a refrigerant outflow pipe 13, a refrigerant flow passage 14, a heating mechanism 2, a stainless steel round pipe 3, a cooling liquid flow passage 31, a heat transfer baffle 32, a cooling liquid inlet 33, a cooling liquid outlet 34 and a heating thick film 4.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The utility model relates to a vehicle heat exchanger with a heating function, which is shown in fig. 1-5, and comprises a heat exchanger body 1 and a heating mechanism 2, wherein the heat exchanger body 1 is of an aluminum rectangular block structure, a refrigerant flow channel 14 is arranged in the heat exchanger body 1, the heating mechanism 2 comprises a stainless steel round tube 3 and a heating thick film 4, the heat exchanger body 1 is wrapped by the stainless steel round tube 3 with two ends closed, a cavity between the stainless steel round tube 3 and the heat exchanger body 1 is a cooling liquid flow channel 31, the heating thick film 4 is circumferentially covered at the middle part of the stainless steel round tube 3, the heating thick film 4 is electrified to heat the stainless steel round tube 3, the stainless steel round tube 3 is heated to cool liquid flowing in the cooling liquid flow channel 31, and the cooling liquid transfers heat to the refrigerant flow channel 14 through the heat exchanger body 1.
The heat exchanger is characterized in that refrigerant inflow pipes 12 and refrigerant outflow pipes 13 are arranged on two sides of the heat exchanger body 1, the refrigerant inflow pipes 12 and the refrigerant outflow pipes 13 penetrate through the stainless steel round pipes 3 to extend outwards, the heat exchanger body 1 comprises a plurality of layers of aluminum plates 11 which are arranged in parallel and in a stacked mode, the peripheries of the aluminum plates 11 are formed by vacuum brazing and welding, the thickness range of a single aluminum plate 11 is 0.3mm-0.5mm, and the gap height between the aluminum plates 11 is 1.0mm-1.3mm. The gap between the aluminum plates 11 in the heat exchanger body 1 is a refrigerant flow channel 14, through holes with the same pipe diameters are formed at positions opposite to the refrigerant inflow pipe 12 and the refrigerant outflow pipe 13, and the refrigerant in the refrigerant flow channel 14 flows into or flows out of the heat exchanger body 1 through the through holes.
The thickness of the stainless steel round tube 3 is 1.5mm, and the heating thick film 4 is coated on the outer peripheral surface of the stainless steel round tube 3 through screen printing. Thick film heating is a process of combining superconducting ceramic materials into slurry by using micro powder and a bonding solvent, printing the slurry on a substrate in a circuit wiring or pattern mode by using a screen printing technology, and sintering and forming, so that the heated thick film is not easy to fall off, has good adhesion and has good heating stability.
The two sides of the periphery of the stainless steel round tube 3 are provided with a cooling liquid inlet 33 and a cooling liquid outlet 34, the two end faces of the stainless steel round tube 3 are connected with the tube body through welding, and the refrigerant inflow tube 12, the refrigerant outflow tube 13 and the stainless steel round tube 3 are welded through brazing.
The inner wall of the stainless steel round tube 3 is provided with a plurality of heat transfer baffles 32, the heat transfer baffles 32 are arranged on the covering part of the heating thick film 4, one end of each heat transfer baffle 32 extends into the cooling liquid flow channel 31 of the heat exchanger body 1, and the heat transfer baffles 32 are equidistantly spaced and parallel to each other. The stainless pipe round tube 3 transfers heat to the cooling liquid flow channel 31 through the heat transfer baffle 32, and one end of the heat transfer baffle 32 directly extends into the cooling liquid flow channel 31, so that disturbance can be formed on cooling liquid while the cooling liquid is heated, the cooling liquid flow speed is increased, heat exchange is facilitated, and the heat transfer baffle 32 can limit the heat exchanger body to a certain extent, and shaking is avoided.
The working principle of the utility model is as follows: the cooling liquid flows in from the cooling liquid inlet 33 and fills the whole cooling liquid flow channel 31, flows out from the cooling liquid outlet 34, and is electrified to heat the heating thick film 4, the heating thick film 4 uniformly heats the middle section of the stainless steel round tube 3, the heat is transferred into the cooling liquid flow channel 31 through the stainless steel round tube 3 and the plurality of heat transfer baffles 32, the cooling liquid is rapidly heated, the heated cooling liquid heats the heat exchanger body 1, the heat is transferred to the refrigerant flow channel 14, the refrigerant absorbs the heat, and the heat pump can continuously and efficiently run.
While the utility model has been described with respect to several preferred embodiments, the scope of the utility model is not limited thereto, and any changes and substitutions that would be apparent to one skilled in the art within the scope of the utility model are intended to be included within the scope of the utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a take heating function's heat exchanger for vehicle which characterized in that: including heat exchanger body and heating mechanism, the heat exchanger body is aluminium system rectangle massive structure, this internal refrigerant runner that is of heat exchanger, heat exchanger body both sides are equipped with refrigerant inflow pipe and refrigerant outflow pipe, heating mechanism includes stainless steel pipe and heating thick film, both ends confined stainless steel pipe wraps up the heat exchanger body in, refrigerant inflow pipe and refrigerant outflow pipe pass stainless steel pipe outwards stretch out, stainless steel pipe peripheral both sides are equipped with coolant inlet and coolant outlet, the cavity between stainless steel pipe and the heat exchanger body is the coolant runner, the heating thick film encircles the middle part that covers at stainless steel pipe, the circular heating of heating thick film is to stainless steel pipe, the stainless steel pipe heats the coolant that flows in the coolant runner, the coolant passes through the heat exchanger body with heat transfer to in the coolant runner.
2. The vehicle heat exchanger with a heating function according to claim 1, wherein: the inner wall of the stainless steel round tube is provided with a plurality of heat transfer baffles, the heat transfer baffles are arranged on the covering part of the heating thick film, one ends of the heat transfer baffles extend into the cooling liquid flow passage of the heat exchanger body, and the heat transfer baffles are equidistantly spaced and parallel to each other.
3. The vehicle heat exchanger with a heating function according to claim 2, wherein: the heat exchanger body comprises a plurality of layers of aluminum plates which are arranged in parallel in a stacked mode, the peripheries of the aluminum plates are formed by vacuum brazing and welding, and the thickness range of a single aluminum plate is 0.3mm-0.5mm.
4. A heat exchanger for a vehicle having a heating function according to claim 3, wherein: the gap between the aluminum plates in the heat exchanger body is a refrigerant flow channel, through holes consistent with the pipe diameters are formed in positions opposite to the refrigerant inflow pipe and the refrigerant outflow pipe, and the refrigerant in the refrigerant flow channel flows into or flows out of the heat exchanger body through the through holes.
5. A heat exchanger for a vehicle having a heating function according to claim 3, wherein: the height of the gap between the aluminum plates is 1.0mm-1.3mm.
6. The vehicle heat exchanger with a heating function according to claim 5, wherein: the thickness of the stainless steel circular tube is 1.5mm, and the heating thick film is coated on the outer peripheral surface of the stainless steel circular tube through screen printing.
7. The vehicle heat exchanger with a heating function according to claim 6, wherein: the two end surfaces of the stainless steel round tube are connected with the tube body through welding, and the refrigerant inflow tube, the refrigerant outflow tube and the stainless steel round tube are welded through brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323032253.0U CN221036995U (en) | 2023-11-09 | 2023-11-09 | Vehicle heat exchanger with heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323032253.0U CN221036995U (en) | 2023-11-09 | 2023-11-09 | Vehicle heat exchanger with heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221036995U true CN221036995U (en) | 2024-05-28 |
Family
ID=91171727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323032253.0U Active CN221036995U (en) | 2023-11-09 | 2023-11-09 | Vehicle heat exchanger with heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221036995U (en) |
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2023
- 2023-11-09 CN CN202323032253.0U patent/CN221036995U/en active Active
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