CN217719757U - Battery thermal management system of electric automobile - Google Patents
Battery thermal management system of electric automobile Download PDFInfo
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- CN217719757U CN217719757U CN202221683697.3U CN202221683697U CN217719757U CN 217719757 U CN217719757 U CN 217719757U CN 202221683697 U CN202221683697 U CN 202221683697U CN 217719757 U CN217719757 U CN 217719757U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an electric automobile's battery thermal management system, including methyl alcohol porous medium combustor and water route heat transfer system, wherein: the methanol porous medium burner comprises a fan, a methanol pump, a combustion chamber, an ignition needle, a metal fiber felt and a porous medium, wherein the methanol pump is connected with a methanol supply pipeline, and an outlet of the methanol supply pipeline is positioned in a mixing cavity of the combustion chamber so as to guide liquid methanol into the mixing cavity; the fan guides air into the mixing cavity through an air inlet hole on the combustion chamber, and the ignition needle penetrates through the shell of the combustion chamber and is inserted into the mixing cavity; a metal fiber felt and a porous medium are arranged in the mixing cavity, and an outlet of the methanol supply pipeline is in contact with the metal fiber felt; the outside of the combustion chamber is provided with a heat exchange coil which is connected with a water path heat exchange system, and the water path heat exchange system is used for supplying heat to the battery of the electric automobile. The device is started before the cold vehicle is started, the battery is directly heated, the battery quickly enters a proper working environment, and the starting is smoother.
Description
Technical Field
The utility model relates to an electric automobile technical field especially relates to an electric automobile's battery thermal management system.
Background
The electric automobile industry in China is developed rapidly, and the keeping quantity of electric automobiles is continuously increased. However, in winter and in cold climate areas in China, the normal work of batteries of electric automobiles is difficult to guarantee, the starting is very difficult, the endurance capacity is greatly reduced, and the shrinkage range of endurance mileage is even more than half. Therefore, it is very urgent to solve the problem of normal operation of the battery of the electric vehicle in cold weather.
In order to solve the problems, in recent years, the thermal management modes of the electric automobile are diversified. The PTC electric heating is a mature technology, can basically ensure the normal operation of the battery, but consumes the electric energy of the battery to heat, and is difficult to solve the problem of endurance in essence; the air-conditioning heat pump technology can enhance the battery endurance on the basis of the former technology, but the system structure is complex, the cost is high, the practical application is difficult to meet, and the cold start problem is not improved by the two methods.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric automobile's battery thermal management system to the technical defect that electric automobile thermal management exists among the prior art.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
the utility model provides an electric automobile's battery thermal management system, includes methyl alcohol porous medium combustor and water route heat transfer system, wherein:
the methanol porous medium burner comprises a fan, a methanol pump, a combustion chamber, an ignition needle, a metal fiber felt and a porous medium, wherein the methanol pump is connected with a methanol supply pipeline, and an outlet of the methanol supply pipeline is positioned in a mixing cavity of the combustion chamber so as to guide liquid methanol into the mixing cavity; the fan guides air into the mixing cavity through an air inlet hole on the combustion chamber, the air and the methanol gas are mixed in the mixing cavity, and the ignition needle penetrates through the shell of the combustion chamber and is inserted into the mixing cavity; the metal fiber felt and the porous medium are arranged in the mixing cavity, the outlet of the methanol supply pipeline is in contact with the metal fiber felt, the metal fiber felt is arranged on one side, close to the air inlet hole and the outlet of the methanol supply pipeline, in the mixing cavity, and the porous medium and the metal fiber felt are adjacently inserted into the mixing cavity;
the outer side of the combustion chamber is provided with a heat exchange coil, the heat exchange coil is connected with a water path heat exchange system, and the water path heat exchange system is used for supplying heat to a battery of the electric automobile.
In the above technical scheme, the waterway heat exchange system comprises a circulation pipeline and a water pump arranged on the circulation pipeline, wherein a part of pipeline of the circulation pipeline is arranged around the battery in a serpentine bending manner, preferably, is arranged below the battery.
In the technical scheme, one part of the heat exchange coil is coiled outside the combustion chamber, the other part of the heat exchange coil is coiled after the diameter of the heat exchange coil is reduced, and the two ends of the heat exchange coil are respectively provided with the water inlet and the water outlet.
In the technical scheme, the heat exchange coil is arranged in the heat preservation cylinder, one end in the heat preservation cylinder is connected with the opening of the combustion chamber shell, the other end of the heat preservation cylinder is provided with the exhaust port for exhausting gas generated after combustion, and the two ends of the heat exchange coil penetrate out of the side wall of the heat preservation cylinder.
In the technical scheme, the combustion chamber is arranged in a combustion chamber shell, an air inlet is formed in the combustion chamber shell, and the fan is arranged in the combustion chamber shell.
In the above technical solution, the porous medium is cylindrical, and the pores in the porous medium are different in size.
In the technical scheme, the porous medium and the combustion chamber are coaxially arranged, the porous medium is arranged in parallel in two or more layers, and the pore densities of the adjacent two layers of porous media are different.
In the technical scheme, the front end of the combustion chamber is provided with a cylindrical bulge, the cylindrical bulge is provided with air inlet holes which are distributed annularly, the metal fiber felt is arranged around the cylindrical bulge, and the ignition needle does not contact with the metal fiber felt when penetrating through the shell of the combustion chamber and being inserted into the mixing cavity.
In the technical scheme, the methanol porous medium burner further comprises a control system, and the control system is arranged in the combustion chamber and is respectively and electrically connected with the fan, the methanol pump and the ignition needle. And a temperature sensor is arranged on the battery and electrically connected with the control system.
In the above technical solution, the methanol porous medium burner further includes a heat dissipation temperature sensor and a cavity temperature sensor, the heat dissipation temperature sensor and the cavity temperature sensor are electrically connected to the control system respectively, the heat dissipation temperature sensor is located at the rear end of the combustion chamber, and the cavity temperature sensor is located at the front end of the combustion chamber.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an electric automobile's battery thermal management system adopts "auxiliary fuel heating" technique, makes battery system's operational environment temperature suitable to guarantee the working property of battery, prolong continuation of the journey mileage greatly. The device is started before the cold vehicle is started, the battery is directly heated, the battery quickly enters a proper working environment, and the starting is smoother.
2. The porous structure characteristic of the porous medium in the methanol porous medium burner can increase the flow resistance of gas and has strong flow equalizing effect, so that the formation of combustible mixed gas in a combustion chamber can be promoted, and the mixing of fuel and air is more sufficient and uniform. Through the comparison of the temperature distribution inside the front and back combustion chambers by adding the porous medium, it can be seen that the temperature distribution inside the porous medium combustion chamber is more uniform, and the problem of partial combustion of the traditional free flame burner is effectively solved.
3. The methanol porous medium burner has high combustion rate and combustion intensity in the porous medium: the specific heat of the porous medium is far greater than that of air, the heat accumulated in the continuous combustion process is also greater, the porous medium is used as a 'hot pool', the heat transfer in the combustor is greatly enhanced, the combustion intensity and the combustion distribution uniformity in the combustion chamber are greatly improved, the combustion is more complete and sufficient, and the high-capacity heat intensity and power density are realized while the combustion is stable.
4. The porous medium burner in the methanol porous medium burner is greatly optimized in starting: most liquid porous medium burners are complicated to start up. Most employ two systems that are heated with a gaseous fuel at start-up and then switched to a liquid fuel. Therefore, two fuels are prepared, two fuel supply systems are needed, two fuels are used simultaneously, the connection of the two fuel supply systems is involved, the whole system becomes complicated, the methanol porous medium burner only uses one fuel, when the methanol porous medium burner is started, the ignition needle is raised to 1100 ℃ to gasify part of methanol and ignite premixed gas, and after the ignition is finished, the ignition needle is closed. The device utilizes the heat storage and enhanced heat transfer characteristics of the porous medium, and the heat transferred upstream by the porous medium is enough to gasify the methanol, so that the combustion process in the combustor is continuously carried out.
Drawings
Fig. 1 is a schematic diagram of a battery thermal management system.
Fig. 2 shows an exploded view of a methanol porous media burner.
Fig. 3 is a front view of a methanol porous media burner.
Fig. 4 is a schematic view of a combustor and its connection structure (a combustor casing is omitted).
Fig. 5 is the addition of a heat exchange coil to the heat exchanger of fig. 4.
Fig. 6 is a schematic view of the internal structure of the combustion chamber.
In the figure: 1-a fan, 2-a methanol pump, 3-a combustion chamber, 4-an ignition needle, 5-a porous medium, 6-a methanol supply pipeline, 7-a mixing cavity, 8-an air inlet, 9-an air inlet, 10-a cylindrical bulge, 11-a heat exchange coil, 12-a circulation pipeline, 13-a water pump, 14-a battery, 15-a control system, 16-a heat preservation cylinder, 17-a combustion chamber shell and 18-an exhaust port.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The utility model provides an electric automobile's battery thermal management system, includes methyl alcohol porous medium combustor and water route heat transfer system, wherein:
methanol porous medium combustor, including fan 1, methanol pump 2, combustion chamber 3, ignition needle 4, metal fiber felt, and porous medium 5, wherein:
a methanol supply pipeline 6 is connected to the methanol pump 2, and the outlet of the methanol supply pipeline 6 is positioned in a mixing cavity 7 of the combustion chamber 3 so as to guide liquid methanol into the mixing cavity 7; the fan 1 introduces air into the mixing cavity 7 through an air inlet hole 8 on the combustion chamber 3, the air and the methanol gas are mixed in the mixing cavity 7, and the ignition needle 4 penetrates through the shell of the combustion chamber 3 and is inserted into the mixing cavity 7;
the mixing cavity 7 is internally provided with the metal fiber felt and the porous medium 5, the outlet of the methanol supply pipeline 6 is contacted with the metal fiber felt, the metal fiber felt is arranged at one side of the mixing cavity 7 close to the air inlet hole 8 and the outlet of the methanol supply pipeline 6, and the porous medium 5 and the metal fiber felt are adjacently inserted into the mixing cavity 7;
the outer side of the combustion chamber 3 is provided with a heat exchange coil 11, the heat exchange coil 11 is connected with a water path heat exchange system, and the water path heat exchange system is used for supplying heat to a battery 14 of the electric automobile.
The heat exchange coil 11 transfers heat released by combustion to circulating water in the pipeline and transfers the heat to the battery 14 part of the electric vehicle.
An ignition needle 4 is arranged in the combustion chamber 3, the ignition needle 4 is firstly heated, methanol is gasified, when the temperature is continuously raised, the ignition needle 4 is ignited, and the methanol is combusted in the presence of oxygen in the air; the methanol combustion reaction adopts two-step total package reaction: the first step is the reaction of methanol with oxygen to produce carbon monoxide, and the second step is the reaction of carbon monoxide with oxygen to produce carbon dioxide.
After the methanol liquid fuel enters the metal fiber felt, the capillary action of the metal fiber felt can quickly and uniformly distribute the fuel to the whole fiber felt, when the ignited mixed gas enters the mixing cavity 7, the metal fiber felt is heated, and after the methanol entering the metal fiber felt is heated and gasified, the methanol is continuously mixed with the introduced air to be combusted.
The porous medium 5 is filled in the mixing cavity 7 of the combustion chamber 3, the structure can be used as a 'hot pool', the heat transfer in the combustor is greatly enhanced, the combustion intensity and the combustion distribution uniformity in the combustion chamber are greatly improved, the combustion is more complete, the combustion is stable, and simultaneously, the porous medium has higher volumetric heat intensity and power density, so that CO and NO can be used for generating powerxAnd the emission of particles is greatly reduced, the pollution emission is effectively reduced, and the problem of partial combustion of the original combustor is basically solved.
Example 2
Preferably, one part of the heat exchange coil 11 is coiled outside the combustion chamber 3, the other part of the heat exchange coil is coiled after the diameter of the heat exchange coil is reduced, and the two ends of the heat exchange coil 11 are respectively provided with a water inlet and a water outlet. The heat exchange coil 11 is arranged in a heat preservation cylinder 16, one end in the heat preservation cylinder 16 is connected with an opening of a combustion chamber shell 17, the other end of the heat preservation cylinder 16 is provided with an exhaust port 18 for exhausting gas generated after combustion, and two ends of the heat exchange coil 11 penetrate out of the side wall of the heat preservation cylinder 16.
Preferably, the waterway heat exchange system comprises a circulation pipeline 12 and a water pump 13 arranged on the circulation pipeline 12, wherein a part of the circulation pipeline 12 is arranged around the battery 14 in a serpentine shape, preferably, is arranged below the battery 14, the water pump 13 promotes the water flow in the circulation pipeline 12, and the combustion chamber 3 transfers heat to the water in the circulation pipeline 12 and transfers the heat to the battery 14 of the electric vehicle.
The battery 14 is provided with a temperature sensor for collecting temperature signals, when the temperature sensor collects that the temperature of the battery 14 is less than or equal to 15 ℃, the methanol porous medium burner starts to work, and when the temperature of the battery 14 is more than 25 ℃, the methanol porous medium burner stops working.
Preferably, the combustion chamber 3 is arranged in a combustion chamber shell 17, an air inlet 9 is formed in the combustion chamber shell 17, the fan 1 is arranged in the combustion chamber shell 17, and when the fan 1 is started, air enters the combustion chamber shell 17 through the air inlet 9 and then enters the mixing chamber 7 through an air inlet hole 8 in the combustion chamber 3.
Preferably, the porous medium 5 is cylindrical, the pores in the porous medium 5 are different in size, the porous medium 5 has a vortex structure and a large friction coefficient, the fuel gas mixture generates vortex, shunt, turbulence and other phenomena in the porous medium, the time or path of a combustion area is prolonged, the heat and mass transfer in the combustion area is enhanced, the combustion rate is accelerated, the combustion efficiency is high, and the pollution emission is low (CO)<15mg/Nm3，NOx<30mg/Nm3) And wide fuel universality.
More preferably, the porous medium 5 is coaxially arranged with the combustion chamber 3, the porous medium 5 is arranged in two or more layers in parallel, and the pore density of the adjacent two layers of porous media 5 is different. The combination of the multi-layer porous media 5 with different pore densities ensures that the speed of the flame at the interface of the porous media 5 with different pore diameters is changed, the flame stably stays in the porous media 5, the combustion becomes stable, the flame drift phenomenon is not found, the flame surface is vertical to the axis of the combustion chamber 3, and the deflection instability of the flame surface is not found.
Preferably, a cylindrical protrusion 10 is arranged at the front end of the combustion chamber 3, air inlet holes 8 are annularly distributed in the cylindrical protrusion 10, the metal fiber felt is arranged around the cylindrical protrusion 10, and the ignition needle 4 does not contact with the metal fiber felt when penetrating through a shell of the combustion chamber 3 and being inserted into the mixing cavity 7, so that ignition is prevented from being influenced.
Preferably, the methanol porous medium burner further comprises a control system 15, the control system 15 is arranged in the combustion chamber 3 and is respectively electrically connected with the fan 1, the methanol pump 2 and the ignition needle 4, and the control system 15 controls the fan 1, the methanol pump 2 and the ignition needle 4 to operate.
Furthermore, the methanol porous medium burner further comprises a heat dissipation temperature sensor and a cavity temperature sensor which are electrically connected with the control system 15, wherein the heat dissipation temperature sensor is positioned at the rear end of the combustion chamber 3 (the side of the combustion chamber 3 close to the fan 1 is the front end, and the side close to the porous medium 5 is the rear end), and when the temperature sensed by the heat dissipation temperature sensor rises to exceed a fixed value, the ignition needle 4 stops working, so that the temperature is prevented from being too high. The cavity temperature sensor is positioned at the front end of the combustion chamber 3, when the fuel pump stops working, the air inlet machine 1 still works in a maximum rotating speed mode to sweep air into the combustion chamber 3, and after the feedback temperature of the cavity temperature sensor at the front end of the combustion chamber 3 is reduced to a certain temperature, the whole machine stops working.
Preferably, the combustion chamber 3 is cylindrical, the shell is made of 316 stainless steel, the porous medium 5 with the diameter of 50mm and the length of 90mm is arranged in the combustion chamber, and the porous medium 5 is made of silicon carbide and can withstand the high temperature of 1500 ℃.
A number of experiments were conducted with the selection of porous media 5 in the burner and it was found that the burner performance was best when the porous media 5 were designed for different combinations of pore densities. Porous medium 5 with total length 90mm (30mm 30ppi +30mm 25ppi +30mm 15ppi) is finally selected according to the test structure. The reason for choosing the pore density of 30ppi in the first layer (the side close to the air inlet 8 of the combustion chamber 3) is to sufficiently increase the uniform mixing degree of the fuel gas and the air and to better solve the problem of the burner combustion bias. The second layer selection of 25ppi porous media 5 is mainly based on the combustion temperature profile within the combustion chamber 3. The selection of 15ppi porous media 5 for the third layer (the side near the outlet of the combustion chamber 3) is mainly based on the internal resistance of the burner and the uniformity of the air flow. The resistance of the combustor and the uniformity of the flow distribution in the combustor are strongly influenced by the pore density of the porous medium, and a comparison experiment shows that the flow distribution in the combustion chamber 3 is more uniform by adopting the 15ppi porous medium 5, no visible flame tongues are sprayed out from the outlet of the combustor, and when the pore density is more than 15ppi porous medium 5, the visible flame tongues are sprayed out from the outlet, which indicates that a local high-speed area exists at the outlet of the combustion chamber 3.
Example 3
The method of operating a methanol porous media burner as described in example 1, comprising the steps of:
And 3, the flame surface is fully expanded, the whole porous medium 5 is gradually and uniformly filled, the combustion enters stably, the porous medium 5 becomes red heat, the radiant heat of the porous medium 5 and the heat of the cylinder wall of the combustion chamber 3 can be transferred to a metal fiber felt and a mixing cavity at the upstream of the combustor (the fuel side, namely the side close to an air inlet 8 and the outlet of a methanol supply pipeline 6), the temperature of the metal fiber felt continuously gasifies the pumped liquid methanol, the radiant heat of the high-temperature porous medium 5 heats the premixed gas entering the mixing cavity, the heat storage and heat transfer characteristics of the porous medium 5 perfectly solve the gasification of the liquid methanol, the mixed gas entering the porous medium 5 can also be continuously ignited, and the combustion process in the combustor can be continuously and smoothly carried out. And the porous medium 5 is burnt and fixed, and the flame drift phenomenon is avoided.
And 4, as the combustor continuously works, the heat dissipation temperature sensor of the control system 15 receives the feedback of the heat dissipation system, and the work of the combustor reaches the expected set target. The flow of the fuel pump is reduced, the rotating speed of the fan 1 is matched with the flow of the fuel pump, and the feedback temperature of the heat dissipation temperature sensor is kept about the set target. If the set temperature or power is increased or decreased at this time, the control system 15 will cause the fuel supply and intake and exhaust of the burner to respond and change in time.
And 5, the control system 15 executes a shutdown command, the fuel pump stops working, but the air intake and exhaust system still works in a maximum rotating speed mode, the combustion chamber 3 is swept, and the whole machine stops working after the temperature fed back by the cavity temperature sensor at the front end of the combustion chamber 3 is reduced to a certain temperature.
The burner is switched to normal operation after ignition and start, the start time is longer than that of a burner with free flame, about 150 seconds to 200 seconds because the heat capacity of the porous medium 5 is large, and the start is finished by the characteristics that the temperature of the porous medium 5 in the combustion chamber 3 is uniform, the temperature of the porous medium 5 is about 1400k, and the wall temperature of the burner is about 1200 k.
When the porous medium burner works normally, the radiant heat of the porous medium 5 and the heat of the wall of the combustion chamber 3 can be transferred to the metal fiber felt and the mixing cavity 7 at the upstream (fuel side) of the burner, the temperature of the metal fiber felt continuously gasifies the pumped liquid methanol, the radiant heat of the high-temperature porous medium 5 heats the premixed gas entering the mixing cavity 7, the heat storage and heat transfer characteristics of the porous medium 5 are perfect, the defect that the latent heat of gasification of the liquid methanol is large is overcome, the methanol combustion is smokeless, and the porous medium 5 cannot be polluted by carbon deposition as long as primary air is enough during combustion. When methanol fuel is continuously pumped into the combustor, the process is continuously carried out, and the device works all the time.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of upper and lower. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an electric automobile's battery thermal management system which characterized in that, includes methyl alcohol porous medium combustor and water route heat transfer system, wherein:
the methanol porous medium burner comprises a fan, a methanol pump, a combustion chamber, an ignition needle, a metal fiber felt and a porous medium, wherein the methanol pump is connected with a methanol supply pipeline, and an outlet of the methanol supply pipeline is positioned in a mixing cavity of the combustion chamber so as to guide liquid methanol into the mixing cavity; the fan guides air into the mixing cavity through an air inlet hole on the combustion chamber, and the ignition needle penetrates through a shell of the combustion chamber and is inserted into the mixing cavity; the metal fiber felt and the porous medium are arranged in the mixing cavity, the outlet of the methanol supply pipeline is in contact with the metal fiber felt, the metal fiber felt is arranged on one side, close to the air inlet hole and the outlet of the methanol supply pipeline, in the mixing cavity, and the porous medium and the metal fiber felt are adjacently inserted into the mixing cavity;
the outer side of the combustion chamber is provided with a heat exchange coil, the heat exchange coil is connected with a water path heat exchange system, and the water path heat exchange system is used for supplying heat to a battery of the electric automobile.
2. The battery thermal management system of the electric automobile according to claim 1, wherein the water path heat exchange system comprises a circulation pipeline and a water pump arranged on the circulation pipeline, and a part of the circulation pipeline is arranged around the battery in a serpentine shape.
3. The battery thermal management system of the electric automobile according to claim 1, wherein a portion of the heat exchange coil is coiled outside the combustion chamber, and another portion of the heat exchange coil is coiled after the diameter of the heat exchange coil is reduced, and the two ends of the heat exchange coil are respectively a water inlet and a water outlet.
4. The battery thermal management system of the electric automobile according to claim 1, wherein the heat exchange coil is disposed in a heat-insulating cylinder, one end of the heat-insulating cylinder is connected to an opening of a combustion chamber housing, the other end of the heat-insulating cylinder is provided with an exhaust port for exhausting gas generated after combustion, and both ends of the heat exchange coil penetrate out of a side wall of the heat-insulating cylinder.
5. The battery thermal management system of an electric vehicle of claim 1, wherein the combustion chamber is disposed within a combustion chamber housing, the combustion chamber housing having an air inlet, the blower being disposed within the combustion chamber housing.
6. The battery thermal management system of an electric vehicle of claim 1, wherein the porous media is cylindrical and the pores in the porous media are of different sizes.
7. The battery thermal management system of an electric vehicle of claim 1, wherein the porous medium is disposed coaxially with the combustion chamber, the porous medium is disposed in two or more layers in parallel, and the pore density of the porous medium in two adjacent layers is different.
8. The battery thermal management system of the electric vehicle according to claim 1, wherein a cylindrical protrusion is provided at a front end of the combustion chamber, the cylindrical protrusion is provided with air inlet holes distributed annularly, the metal fiber felt is disposed around the cylindrical protrusion, and the ignition needle does not contact with the metal fiber felt when inserted into the mixing cavity through the housing of the combustion chamber.
9. The battery thermal management system of the electric vehicle according to claim 1, wherein the methanol porous medium burner further comprises a control system, the control system is arranged in the combustion chamber and is electrically connected with the fan, the methanol pump and the ignition needle respectively, a temperature sensor is arranged on the battery, and the temperature sensor is electrically connected with the control system.
10. The battery thermal management system of the electric vehicle of claim 1, wherein the methanol porous medium burner further comprises a heat dissipation temperature sensor and a cavity temperature sensor, the heat dissipation temperature sensor and the cavity temperature sensor are respectively electrically connected with the control system, the heat dissipation temperature sensor is located at the rear end of the combustion chamber, and the cavity temperature sensor is located at the front end of the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221683697.3U CN217719757U (en) | 2022-07-02 | 2022-07-02 | Battery thermal management system of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221683697.3U CN217719757U (en) | 2022-07-02 | 2022-07-02 | Battery thermal management system of electric automobile |
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| Publication Number | Publication Date |
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| CN217719757U true CN217719757U (en) | 2022-11-01 |
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| CN202221683697.3U Active CN217719757U (en) | 2022-07-02 | 2022-07-02 | Battery thermal management system of electric automobile |
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- 2022-07-02 CN CN202221683697.3U patent/CN217719757U/en active Active
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