CN103090463B - Electric automobile air-conditioning system - Google Patents
Electric automobile air-conditioning system Download PDFInfo
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- CN103090463B CN103090463B CN201110338502.1A CN201110338502A CN103090463B CN 103090463 B CN103090463 B CN 103090463B CN 201110338502 A CN201110338502 A CN 201110338502A CN 103090463 B CN103090463 B CN 103090463B
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Abstract
The invention discloses a kind of electric automobile air-conditioning system, the first loop for refrigeration of including compressor (1) and being connected and for the second servo loop heated with described compressor (1)；Described air conditioning system also includes First Heat Exchanger (21), the second heat exchanger (22), the 3rd heat exchanger (23), the first expansion valve (31) and the second expansion valve (32)；First connected by the port of export of described second heat exchanger (22) heats pipeline (221) and selects one connect with described first expansion valve (31) and described second expansion valve (32), so that first heats pipeline (221) and connects with the first expansion valve (31) described in when individually heating, heat simultaneously with except first heating pipeline (221) and connect with described second expansion valve (32) described in during mist.The structure of this air conditioning system designs while heating interior, additionally it is possible to carries out defrosting-defogging operation, thus on the one hand can improve comfort level, on the other hand can improve defrosting-defogging effect.
Description
Technical field
The present invention relates to electric vehicle engineering field, particularly to a kind of electric automobile air-conditioning system.
Background technology
Along with the fast development of electric automobile, electric automobile air conditioner has also welcome unprecedented opportunity to develop.Below with reference to accompanying drawing, electric automobile air-conditioning system of the prior art is made introduction.
Refer to Fig. 1, Fig. 1 is the principle schematic of a kind of electric automobile air-conditioning system in prior art.
As it is shown in figure 1, the electric automobile air-conditioning system in the prior art includes compressor 1 '；As shown in white arrow in Fig. 1, cold-producing medium is flowed out by compressor 1 ', and flow out to the left through cross valve 5 ', have in the 3rd heat exchanger 2 ' 3 of evaporator function through now having the entrance of condenser function First Heat Exchanger the 2 ' 1, second stop valve the 6 ' 2, second expansion valve 3 ' 2, then flowed out by the 3rd heat exchanger 2 ' 3, flow back in compressor 1 ' through gas-liquid separator 8 ', complete a closed circuit, this closed circuit can be defined as the first loop, and this first loop is used for realizing cooling in summer.
In addition, as shown in black arrow in Fig. 1, cold-producing medium is flowed out by compressor 1 ', and flow out to the right through cross valve 5 ', enter in second heat exchanger 2 ' 2 with condenser function, then flowed out by this second heat exchanger 2 ' 2, through the first expansion valve 3 ' 1, now there is evaporator function First Heat Exchanger the 2 ' 1, first stop valve 6 ' 1 and gas-liquid separator 8 ' flow back in compressor 1 ', complete a closed circuit, this closed circuit can be defined as second servo loop, and this first loop is used for realizing winter heating.
As shown in Figure 1, the inside of the evaporation assembly casing 4 ' of air conditioning system is located at by 3rd heat exchanger 2 ' 3 and the second heat exchanger 2 ' 2, and the 3rd heat exchanger 2 ' 3 be located at the second heat exchanger 2 ' 2 windward to side, the inside of this evaporation assembly casing 4 ' is additionally provided with circulating fan 4 ' 1, under the effect of this blower fan, it is achieved the quick flowing of circulated air.Additionally, First Heat Exchanger 2 ' 1 is located at the outside in compartment, by with extraneous air generation heat exchange, realize its vaporization function or condensation function.Furthermore, as it is shown in figure 1, compressor 1 ' is also associated with converter 7 '.
When the temperature is low, time the most in the winter time, as it is shown in figure 1, cross valve 5 ' circulates to the right, cold-producing medium flows along above-mentioned second servo loop, heats so that interior keeps higher suitable temperature.Now, if interior is carried out defrosting-defogging process, need to switch the flow direction of cross valve 5 ', cross valve 5 ' is circulated to the left (stop circulating to the right, that is stop compartment being heated), thus cold-producing medium is along above-mentioned first loop flowing, the 3rd heat exchanger 2 ' 3 refrigeration, make the steam coagulation in interior air, thus carry out defrosting-defogging process.After defrosting-defogging a period of time, then cross valve 5 ' is commutated so that it is to recover to circulate to the right, thus cold-producing medium flows further along second servo loop, thus continue compartment is heated.After heating a period of time, when interior has frost mist again, repeat said process.
From the above, within a period of time carrying out defrosting-defogging, cross valve 5 ' circulates to the left, and stop circulating to the right, 3rd heat exchanger 2 ' 3 of above-mentioned air conditioning system carries out freezing and defrosting-defogging, and the second heat exchanger 2 ' 2 stops heating, thus while defrosting-defogging, also reduce the temperature of interior, so that the comfort of interior reduces.Additionally, the operation of this defrosting-defogging can not be carried out continuously the long period, the temperature that otherwise can make interior is too low, so that subzero, it is clear that this is insupportable in cold winter；Owing to defrosting-defogging operation can not be carried out continuously the long period, thus its defrosting-defogging effect is also and bad.
Additionally, the critical component of electric automobile also cannot be cooled down by above-mentioned electric automobile air-conditioning system, such as battery and motor inverter etc.；Especially in summer, too high temperature can make the performance of these critical components be substantially reduced, thus substantially reduces the flying power of electric automobile.
Summary of the invention
The technical problem to be solved in the present invention is for providing some electric automobile air-conditioning systems, the structure of this air conditioning system designs while heating interior, defrosting-defogging operation can also be carried out, thus on the one hand can improve comfort level, on the other hand can improve defrosting-defogging effect.
For solving above-mentioned technical problem, the present invention provides a kind of electric automobile air-conditioning system, the first loop including compressor and being connected and second servo loop with described compressor；Described air conditioning system also includes First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger, the first expansion valve and the second expansion valve；
Described second heat exchanger and described 3rd heat exchanger be all located at air conditioning for automobiles evaporation assembly casing inside, and described 3rd heat exchanger be located at described second heat exchanger windward to side；
During refrigeration, described compressor is sequentially connected with now to have the First Heat Exchanger of condenser function, the second expansion valve and have the 3rd heat exchanger of evaporator function and forms described first loop；
When heating, described compressor is sequentially connected with to have the second heat exchanger of condenser function, the first expansion valve and now have the First Heat Exchanger of evaporator function and forms described second servo loop；
First connected by the port of export of described second heat exchanger heats pipeline and selects one connect with described first expansion valve and described second expansion valve, first to heat pipeline and the connection of the first expansion valve described in when individually heating, heat simultaneously with except first heating pipeline and connect with described second expansion valve described in during mist.
Preferably, described 3rd heat exchanger includes for the first sub-heat exchanger of Double-flow-channel heat exchanger and the second flow passage of described first sub-heat exchanger the tertiary circuit carrying out heat exchange with its first flow and the 3rd sub-heat exchanger being connected in described tertiary circuit；
Described first sub-heat exchanger be connected in described first loop and be located at the inside of described assembly casing, the second heat exchanger windward to side.
Preferably, described 3rd heat exchanger includes the tertiary circuit that the first sub-heat exchanger and described first sub-heat exchanger carry out heat exchange and the second sub-heat exchanger being connected in described tertiary circuit；
Described first sub-heat exchanger is connected in described first loop, and the inside of described evaporation assembly casing is located at by described second sub-heat exchanger, and described second sub-heat exchanger be located at described second heat exchanger windward to side；Described tertiary circuit includes the first intake line being connected to the entrance point of described second sub-heat exchanger and is connected to the port of export first output pipe of described second sub-heat exchanger；
Described air conditioning system also includes threeway ratio adjusting valve, and described threeway ratio adjusting valve is connected in described first intake line with its import and the second outlet；
Described 3rd heat exchanger also includes the 3rd sub-heat exchanger, first outlet of described threeway ratio adjusting valve is connected by the entrance point of the second intake line with described 3rd sub-heat exchanger, and the port of export of the 3rd sub-heat exchanger connects with the port of export of described second sub-heat exchanger.
Preferably, described second output pipe is provided with the 3rd three-way valve, and the 3rd three-way valve is connected on described second output pipe with its import and the first outlet；
Described 3rd three-way valve connects with its second outlet entrance point with the second sub-heat exchanger further.
Preferably, the quantity of described 3rd sub-heat exchanger is multiple, and each described 3rd sub-heat exchanger is connected in parallel on described second intake line；The entrance point of any one the 3rd sub-heat exchanger is respectively connected with two regulating valves.
Preferably, the pipeline of the inlet side of described first expansion valve is provided with the first stop valve, and the pipeline of the inlet side of described second expansion valve is provided with the second stop valve；
Described first heats pipeline connects or interrupts connection by described first stop valve with described first expansion valve, and described first heats pipeline is connected with described second expansion valve by described second stop valve or interrupts connection.
Preferably, the port of export of described compressor connects the second three-way valve, and the first outlet of described second three-way valve is connected with the first end of described First Heat Exchanger, and the second outlet of described second three-way valve is connected with the entrance point of described second heat exchanger.
Preferably, the second end of described First Heat Exchanger connects the first refrigeration pipe, and this first refrigeration pipe and described first heats pipeline connection；Described first refrigeration pipe is provided with the first check valve, and described first heats pipeline is provided with the second check valve；
Described first refrigeration pipe and described first heats and is communicated with intermediary's pipeline between pipeline, and the other end of this intermediary's pipeline entrance point with the entrance point of described first stop valve with described second stop valve respectively connects, described first check valve makes the cold-producing medium in the first refrigeration pipe be flowed to described intermediary pipeline by the second end of described First Heat Exchanger, and described second check valve makes the first cold-producing medium heating in pipeline be flowed to described intermediary pipeline by the port of export of described second heat exchanger.
Preferably, described intermediary pipeline is further provided with exsiccator.
Preferably, described air conditioning system also includes the first three-way valve, and this first three-way valve is connected with the entrance point of described compressor with its outlet, it is connected with the first end of described First Heat Exchanger with its first import, is connected with the port of export of its second import with described first sub-heat exchanger.
On the basis of existing technology, the first of the port of export connection of the second heat exchanger of air conditioning system provided by the present invention heats pipeline and selects one connect with described first expansion valve and described second expansion valve, first to heat pipeline and the connection of the first expansion valve described in when individually heating, heat simultaneously with except first heating pipeline and connect with described second expansion valve described in during mist.
When freezing, cold-producing medium flows in the first loop, compressor flow out, and flows through successively and now has the First Heat Exchanger of evaporator function, the second expansion valve and have the 3rd heat exchanger of evaporator function, flows back in compressor the most again；In this process, the 3rd heat exchanger refrigeration.
When individually heating so that first heats pipeline and the connection of the first expansion valve；Now, cold-producing medium flows in the second loop, compressor flow out, and sequentially passes through and has the second heat exchanger of condenser function, first heat pipeline, the first expansion valve and now have the First Heat Exchanger of evaporator function, flows back in compressor the most again；In this process, First Heat Exchanger heats.
When needs carry out heating and operate with defrosting-defogging simultaneously so that first heats extension road connects with the second expansion valve；On this basis, cold-producing medium is flowed out by compressor, through the second heat exchanger, first heats pipeline, the second expansion valve and has the 3rd heat exchanger of evaporator function, flowing back in compressor the most again.In this process, second heat exchanger heats, 3rd heat exchanger freezes and defrosting-defogging, and due to the 3rd heat exchanger be located at the second heat exchanger windward to side, thus air first passes through the 3rd heat exchanger and freezes and defrosting-defogging, then the air being dried carries out intensification through the second heat exchanger again and heats, and finally flows into the inside in compartment.
From the foregoing, it will be observed that air conditioning system provided by the present invention can carry out heating the operation with defrosting-defogging simultaneously, so that interior remains higher temperature, improve comfort level.Can carry out with defrosting-defogging additionally, due to heat simultaneously, thus defrosting-defogging can be carried out continuously any long period, and not worry the problem that compartment temperature reduces, it is thus possible to improve the effect of defrosting-defogging.
In a kind of detailed description of the invention, the second output pipe is provided with the 3rd three-way valve, and the 3rd three-way valve is connected on the second output pipe with its import and the first outlet；3rd three-way valve connects with its second outlet entrance point with the second sub-heat exchanger further.On the basis of this technical scheme, when the temperature of equipment is not the highest, above-mentioned first loop and second servo loop can be closed, and open tertiary circuit；In the structure shown here, medium in tertiary circuit flows to the 3rd sub-heat exchanger through the first outlet of threeway ratio adjusting valve, thus equipment is cooled down, flowed out by the 3rd sub-heat exchanger the most again, flow to after the second sub-heat exchanger heats through the second outlet of the 3rd three-way valve, then realize circulation via the first sub-heat exchanger.In early winter or season in late autumn, interior to heat requirement be not the highest time, said structure design both equipment can be carried out cooling, can realize again heating, and without opening the first loop and second servo loop, it is thus possible to energy-saving and cost-reducing, it is achieved that the comprehensive utilization of the energy.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of electric automobile air-conditioning system in prior art；
Fig. 2 a is the principle schematic of electric automobile air-conditioning system in the first embodiment of the present invention；
Fig. 2 b is the principle schematic of electric automobile air-conditioning system in the second embodiment of the present invention；
Fig. 3 is the principle schematic of electric automobile air-conditioning system in the third embodiment of the present invention；
Fig. 3-1 is the principle schematic when refrigeration of the air conditioning system in Fig. 3；
Fig. 3-2 is the principle schematic when heating of the air conditioning system in Fig. 3；
Fig. 3-3 is the principle schematic when defrosting-defogging of the air conditioning system in Fig. 3；
Fig. 3-4 is the principle schematic when individually cooling down equipment of the air conditioning system in Fig. 3；
Fig. 3-5 is the principle schematic that equipment is cooled down by the air conditioning system in Fig. 3 separately through tertiary circuit；
Fig. 4 is that the associated pipe when the quantity of the 3rd sub-heat exchanger is multiple of the air conditioning system in Fig. 3 arranges schematic diagram；
Fig. 5-1 is the principle schematic of the first three-way valve in Fig. 2 and Fig. 3；
Fig. 5-2 is the principle schematic of the second three-way valve in Fig. 2 and Fig. 3；
Fig. 5-3 is the principle schematic of the 3rd three-way valve in Fig. 2 and Fig. 3；
Fig. 5-4 is the principle schematic of the threeway ratio adjusting valve in Fig. 2 and Fig. 3.
Wherein, in Fig. 1, corresponding relation between reference and component names is:
1 ' compressor；
2 ' 1 First Heat Exchangers；2 ' 2 second heat exchangers；2 ' 3 the 3rd heat exchangers；
3 ' 1 first expansion valves；3 ' 2 second expansion valves；
4 ' evaporation assembly casings；4 ' 1 circulating fans；
5 ' cross valves；
6 ' 1 first stop valves；6 ' 2 second stop valves；
7 ' converters；
8 ' gas-liquid separators；
In Fig. 2 a to Fig. 5-4, the corresponding relation between reference and component names is:
1 compressor；11 intermediary's pipelines；
21 First Heat Exchangers；211 first refrigeration pipes；
22 second heat exchangers；221 first heat pipeline；
23 the 3rd heat exchangers；231 first sub-heat exchangers；232 second sub-heat exchangers；233 the 3rd sub-heat exchangers；233a the second intake line；233b the second output pipe；233c two regulating valves；234a the first intake line；234b the first output pipe；
31 first expansion valves；32 second expansion valves；
4 evaporation assembly casings；
51 first three-way valve；51a the first import；51b the second import；51c exports；
52 second three-way valve；52a import；52b first exports；52c second exports；
53 the 3rd three-way valve；53a import；53b first exports；53c second exports；
54 threeway ratio adjusting valves；54a import；54b first exports；54c second exports；
61 first stop valves；62 second stop valves；
71 first check valves；72 second check valves；
8 exsiccators；
9 kinetic pumps.
Detailed description of the invention
The core of the present invention is for providing some electric automobile air-conditioning systems, the structure of this air conditioning system designs while heating interior, defrosting-defogging operation can also be carried out, thus on the one hand can improve comfort level, on the other hand can improve defrosting-defogging effect.
In order to make those skilled in the art be more fully understood that technical scheme, the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Please also refer to Fig. 2 a, Fig. 2 b, Fig. 3, Fig. 3-1, Fig. 3-2 and Fig. 3-3, Fig. 2 a is the principle schematic of electric automobile air-conditioning system in the first embodiment of the present invention；Fig. 2 b is the principle schematic of electric automobile air-conditioning system in the second embodiment of the present invention；Fig. 3 is the principle schematic of electric automobile air-conditioning system in the third embodiment of the present invention；Fig. 3-1 is the principle schematic when refrigeration of the air conditioning system in Fig. 3；Fig. 3-2 is the principle schematic when heating of the air conditioning system in Fig. 3；Fig. 3-3 is the principle schematic when defrosting-defogging of the air conditioning system in Fig. 3.
In basic technology scheme, as shown in Fig. 2 a, Fig. 2 b and Fig. 3, air conditioning system provided by the present invention includes compressor 1 and the first loop being connected with compressor 1 and second servo loop；Air conditioning system also includes First Heat Exchanger the 21, second heat exchanger the 22, the 3rd heat exchanger the 23, first expansion valve 31 and the second expansion valve 32；Second heat exchanger 22 and the 3rd heat exchanger 23 be all located at air conditioning for automobiles evaporation assembly casing 4 inside, and the 3rd heat exchanger 23 be located at the second heat exchanger 22 windward to side；First Heat Exchanger 21 can be located at the outside in compartment, thus carry out heat exchange with extraneous air and realize its evaporation or condensation function.
On the basis of said structure, as shown in Figure 2 a, when freezing, cold-producing medium flows in the first loop, flowed out by compressor 1, flow through First Heat Exchanger 21, second expansion valve 32 now with evaporator function and the 3rd heat exchanger 23 with evaporator function successively, flow back to the most again in compressor 1；In this process, the 3rd heat exchanger 23 freezes.
When individually heating, as shown in Figure 2 a so that first heats pipeline 221 connects with the first expansion valve 31；Now, cold-producing medium flows in the second loop, flowed out by compressor 1, sequentially pass through and there is the second heat exchanger 22 of condenser function, first heat pipeline the 221, first expansion valve 31 and now there is the First Heat Exchanger 21 of evaporator function, flow back to the most again in compressor 1；In this process, First Heat Exchanger 21 heats.
When needs carry out heating and operate with defrosting-defogging simultaneously, as shown in Figure 2 a so that first heats pipeline 221 connects with the second expansion valve 32；On this basis, cold-producing medium is flowed out by compressor 1, through the second heat exchanger 22, first heats pipeline the 221, second expansion valve 32 and has the 3rd heat exchanger 23 of evaporator function, flowing back in compressor 1 the most again.In this process, second heat exchanger 22 heats, 3rd heat exchanger 23 freezes and defrosting-defogging, and due to the 3rd heat exchanger 23 be located at the second heat exchanger 22 windward to side, thus air first passes through the 3rd heat exchanger 23 and freezes and defrosting-defogging, then the air being dried carries out intensification through the second heat exchanger 22 again and heats, and finally flows into the inside in compartment.
It should be noted that above-mentioned basic technology scheme includes two kinds of embodiments.In the first embodiment, as in figure 2 it is shown, the 3rd heat exchanger 23 is a separate part, the most only one single heat exchanger, 3rd heat exchanger 23 entirety be located at evaporation assembly casing 4 inside, and the 3rd heat exchanger 23 entirety be located at the second heat exchanger 22 windward to side.
The difference of the second embodiment and first embodiment is: in the second embodiment, as shown in Figure 2 b, the 3rd heat exchanger 23 includes for the first sub-heat exchanger 231 of Double-flow-channel heat exchanger and the second flow passage of the first sub-heat exchanger 231 tertiary circuit carrying out heat exchange with its first flow and the 3rd sub-heat exchanger 233 being connected in tertiary circuit.First sub-heat exchanger 231 be connected in the first loop and be located at the inside of assembly casing 4, the second heat exchanger 22 windward to side.Other parts are all identical with first embodiment, repeat no more.
When needing refrigeration in main cabin, the first sub-heat exchanger 231 freezes；When needing refrigeration and battery or other heat generating components to need cooling in main cabin, the first sub-heat exchanger 231 freezes, and tertiary circuit is open-minded, and the 3rd sub-heat exchanger 233 freezes；When only main cabin needs to heat, the first sub-heat exchanger 231 does not works, and the second heat exchanger 22 heats；Main cabin needs when heating with defrosting-defogging state, and the second heat exchanger 22 carries out heating and the first sub-heat exchanger 231 freezes；Main cabin needs to heat when needing cooling with defrosting-defogging state and battery or other heat generating components, and the second heat exchanger 22 carries out heating and the first sub-heat exchanger 231 freezes, and tertiary circuit is open-minded, and the 3rd sub-heat exchanger 233 freezes；In early winter or season in late autumn, interior to heat requirement be not the highest time, only open tertiary circuit, both equipment can have been carried out cooling, and can realize again heating, and without opening the first loop and second servo loop, it is thus able to save energy and reduce the cost, it is achieved that the comprehensive utilization of the energy.
In the third embodiment, as it is shown on figure 3, the 3rd heat exchanger 23 is a system, the tertiary circuit carrying out heat exchange including the first sub-heat exchanger 231 and the first sub-heat exchanger 231 and the second sub-heat exchanger 232 being connected in tertiary circuit；Within the system, the first sub-heat exchanger 231 is connected in the first loop, the second sub-heat exchanger 232 be located at evaporation assembly casing 4 inside, and the second sub-heat exchanger 232 be located at the second heat exchanger 22 windward to side.
It should be noted that in Fig. 3-1 to Fig. 3-5, dotted portion represents cold-producing medium and does not circulates at this, and bold portion also combines arrow and indicates the circulating direction of cold-producing medium.In the third embodiment, as shown in figure 3-1, during refrigeration, flow in the first loop, flowed out by compressor 1, flow through First Heat Exchanger 21, second expansion valve 32 now with evaporator function successively, enter in the first sub-heat exchanger 231, there is heat exchange by the medium (such as aqueous medium) in tertiary circuit and the second sub-heat exchanger 232 in this first sub-heat exchanger 231, the second sub-heat exchanger 232 and then the air generation heat exchange realization refrigeration with circulation in compartment.Furthermore, it is necessary to explanation, in the third embodiment, as shown in figure 3-2, its heating operations is identical with process above, does not repeats them here.Furthermore, it should be noted that in this third embodiment, as shown in Fig. 3-3, when heating with defrosting-defogging, the second heat exchanger 22 heats simultaneously, the second sub-heat exchanger 232 freezes and defrosting-defogging, and other work process are same as above, also also repeat no more at this.
In the third embodiment above-mentioned, in order to key equipment is cooled down, and improvement further can be made.Such as, as it is shown on figure 3, tertiary circuit includes the first intake line 234a being connected to the entrance point of the second sub-heat exchanger 232 and is connected to the port of export the first output pipe 234b of the second sub-heat exchanger 232, and this first output pipe 234b is provided with kinetic pump 9；Air conditioning system also includes threeway ratio adjusting valve 54, and threeway ratio adjusting valve 54 is connected in the first intake line 234a with its import 54a and second outlet 54c；3rd heat exchanger 23 also includes the 3rd sub-heat exchanger 233, first outlet 54b of threeway ratio adjusting valve 54 is connected by the entrance point of the second intake line 233a and the 3rd sub-heat exchanger 233, and the port of export of the 3rd sub-heat exchanger 233 is connected by the port of export of the second output pipe 233b and the second sub-heat exchanger 232.
In said structure, with the medium that the first sub-heat exchanger 231 occurs heat exchange, through this threeway ratio adjusting valve 54, a part flows to the second sub-heat exchanger 232 and realizes refrigeration, another part flows to the 3rd sub-heat exchanger 233 by the second intake line 233a, thus realizes the cooling to key equipments such as batteries；Due to the Flow-rate adjustment effect of threeway ratio adjusting valve 54, thus this technical scheme can regulate as required and flow to the second sub-heat exchanger 232 and flow of the 3rd sub-heat exchanger 233.
Please also refer to Fig. 3, Fig. 3-1, Fig. 3-3, Fig. 3-4 and Fig. 3-5, Fig. 3-4 is the principle schematic when individually cooling down equipment of the air conditioning system in Fig. 3；Fig. 3-5 is the principle schematic that equipment is cooled down by the air conditioning system in Fig. 3 separately through tertiary circuit.
On the basis of technique scheme, improvement further can be made.Such as, as it is shown on figure 3, the second output pipe 233b is provided with the 3rd three-way valve 53, and the 3rd three-way valve 53 is connected on the second output pipe 233b with its import 53a and first outlet 53b；3rd three-way valve 53 connects with its second outlet 53c entrance point with the second sub-heat exchanger 232 further.On the basis of this technical scheme, as in Figure 3-5, when the temperature of equipment is not the highest, above-mentioned first loop and second servo loop can be closed, and open tertiary circuit；In the structure shown here, as in Figure 3-5, medium in tertiary circuit flows to the 3rd sub-heat exchanger 233 through the first outlet 54b of threeway ratio adjusting valve 54, thus equipment is cooled down, flowed out by the 3rd sub-heat exchanger 233 the most again, flow to after the second sub-heat exchanger 232 heats through the second outlet 53c of the 3rd three-way valve 53, then realize circulation via the first sub-heat exchanger 231.In early winter or season in late autumn, interior to heat requirement be not the highest time, said structure design both equipment can be carried out cooling, can realize again heating, and without opening the first loop and second servo loop, it is thus possible to energy-saving and cost-reducing, it is achieved that the comprehensive utilization of the energy.
On the basis of technique scheme, it is also possible to make improvement further.Specifically, refer to Fig. 4, Fig. 4 is that the associated pipe when the quantity of the 3rd sub-heat exchanger is multiple of the air conditioning system in Fig. 3 arranges schematic diagram.
When the equipment needing cooling is multiple, multiple 3rd sub-heat exchanger 233 can be set；Specifically, as shown in Figure 4, the quantity of the 3rd sub-heat exchanger 233 is multiple, and each 3rd sub-heat exchanger 233 is connected in parallel on the second intake line 233a；The entrance point of any one the 3rd sub-heat exchanger 233 is respectively connected with two regulating valves 233c, can be regulated the rate-of flow flowing into each 3rd sub-heat exchanger 233 by this two regulating valves 233c.
Refer to Fig. 5-1 to Fig. 5-4, Fig. 5-1 is the principle schematic of the first three-way valve in Fig. 2 and Fig. 3；Fig. 5-2 is the principle schematic of the second three-way valve in Fig. 2 and Fig. 3；Fig. 5-3 is the principle schematic of the 3rd three-way valve in Fig. 2 and Fig. 3；Fig. 5-4 is the principle schematic of the threeway ratio adjusting valve in Fig. 2 and Fig. 3.
As shown in fig. 5-1, the first three-way valve 51 includes the first import 51a, the second import 51b and outlet 51c；As shown in Fig. 5-2, the second three-way valve 52 includes the first outlet 52b, the second outlet 52c and import 52a；As shown in Fig. 5-3, the 3rd three-way valve 53 includes the first outlet 53b, the second outlet 53c and import 53a；As shown in Fig. 5-4, threeway ratio adjusting valve 54 includes the first outlet 54b, the second outlet 54c and import 54a；It should be noted that, in Fig. 2, Fig. 3, Fig. 4 and Fig. 3-1 to Fig. 3-5, the position relationship of the inlet and outlet of each three-way valve is arranged in strict accordance with above-mentioned Fig. 5-1 to Fig. 5-4, for simplifying figure paper structure, thus in Fig. 2, Fig. 3, Fig. 4 and Fig. 3-1 to Fig. 3-5, no longer mark the inlet and outlet of each three-way valve.
In the first embodiment above-mentioned and the third embodiment, as shown in Figures 2 and 3, the pipeline of the inlet side of the first expansion valve 31 is provided with the first stop valve 61, and the pipeline of the inlet side of the second expansion valve 32 is provided with the second stop valve 62；Thus control the break-make of the first stop valve 61, it is possible to achieve first heats pipeline 221 and the connection of the first expansion valve 31 or interruption, controls the break-make of the second stop valve 62, it is possible to achieve first heats pipeline 221 and the connection of the second expansion valve 32 or interruption.Heat selecting of pipeline 221 and the first expansion valve 31 and the second expansion valve 32 one connect it follows that said structure can realize first more easily.
Further, as shown in Figures 2 and 3, the port of export of compressor 1 connects the second three-way valve 52, and the first outlet 52b of the second three-way valve 52 is connected with the first end of First Heat Exchanger 21, and the second outlet 52c of the second three-way valve 52 and the entrance point of the second heat exchanger 22 connect.When the first circuit refrigeration opened by needs, as shown in figure 3-1 so that the first outlet 52b conducting of the second three-way valve 52, the second outlet 52c closes so that cold-producing medium is flowed to First Heat Exchanger 21 by compressor 1.When needs unlatching second servo loop heats, as shown in figure 3-2, the second outlet 52c conducting of the second three-way valve 52, the first outlet 52b closes so that cold-producing medium is flowed to the second heat exchanger 22 by compressor 1.It follows that the structure design of above-mentioned second three-way valve 52 achieves the conversion between freezing and heating easily.
Further, as shown in Figures 2 and 3, the second end of First Heat Exchanger 21 connects the first refrigeration pipe 211, and this first refrigeration pipe 211 heats pipeline 221 with first and connects；First refrigeration pipe 211 is provided with the first check valve 71, and first heats pipeline 221 is provided with the second check valve 72；
First refrigeration pipe 211 and first heats and is communicated with intermediary's pipeline 11 between pipeline 221, and the other end of this intermediary's pipeline 11 connects with the entrance point of the first stop valve 61 and the entrance point of the second stop valve 62 respectively, first check valve 71 makes the cold-producing medium in the first refrigeration pipe be flowed to intermediary's pipeline 11 by the second end of First Heat Exchanger 21, and the second check valve 72 makes the first cold-producing medium heating in pipeline be flowed to intermediary's pipeline 11 by the port of export of the second heat exchanger 22.
During refrigeration, as shown in figure 3-1, cold-producing medium flows through the first check valve 71 through the first refrigeration pipe 211, then flows through intermediary's pipeline 11, flows to the second expansion valve 32；When individually heating, as shown in figure 3-2, cold-producing medium heats pipeline 221 through first and flows through the second check valve 72, is then passed through intermediary's pipeline 11, flows to the first expansion valve 31；When heating with defrosting-defogging, as shown in Fig. 3-3, cold-producing medium heats pipeline 221 through first and flows through the second check valve 72, is then passed through intermediary's pipeline 11, flows to the second expansion valve 32 simultaneously.It follows that the first check valve 71 and design of the second check valve 72, so that be interconnected first heats pipeline 221 and the first refrigeration pipe 211 is independent of each other；The design of intermediary's pipeline 11 simultaneously so that refrigeration mode, heating mode and under heating simultaneously defrosting-defogging pattern the pipeline of three arrange and all flow to corresponding expansion valve by intermediary's pipeline 11, it is thus possible to simplify the arrangement of pipeline, reduction pipeline cost.
Additionally, as shown in Figures 2 and 3, this intermediary's pipeline 11 can be provided with exsiccator 8, thus cold-producing medium is dried.Specifically, this exsiccator 8 can be liquid storage dryer.
As shown in Figures 2 and 3, air conditioning system also includes the first three-way valve 51, and this first three-way valve 51 is connected with the entrance point of compressor 1 with its outlet 51c, it is connected with the first end of First Heat Exchanger 21 with its first import 51a, connects with the port of export of the sub-heat exchanger 231 of its second import 51b and first.The structure design of this first three-way valve 51 and the second three-way valve 52 above so that air conditioning system provided by the present invention can be changed easily between freezing and heating.
Above electric automobile air-conditioning system provided by the present invention is described in detail.Principle and the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (14)
1. an electric automobile air-conditioning system, the first loop including compressor (1) and being connected with described compressor (1) and second servo loop；Described air conditioning system also includes First Heat Exchanger (21), the second heat exchanger (22), the 3rd heat exchanger (23), the first expansion valve (31) and the second expansion valve (32)；
The inside of evaporation assembly casing (4) of air conditioning for automobiles is all located at by described second heat exchanger (22) and described 3rd heat exchanger (23), and described 3rd heat exchanger (23) be located at described second heat exchanger (22) windward to side；
During refrigeration, described compressor (1) is sequentially connected with now to have the First Heat Exchanger (21) of condenser function, the second expansion valve (32) and have the 3rd heat exchanger (23) of evaporator function and forms described first loop；
When heating, described compressor (1) is sequentially connected with to have second heat exchanger (22) of condenser function, the first expansion valve (31) and now have the First Heat Exchanger (21) of evaporator function and forms described second servo loop；
It is characterized in that, first connected by the port of export of described second heat exchanger (22) heats pipeline (221) and selects one connect with described first expansion valve (31) and described second expansion valve (32), so that first heats pipeline (221) and connects with the first expansion valve (31) described in when individually heating, heat with except first heating pipeline (221) and connect with described second expansion valve (32) described in during mist simultaneously, and flow directly into described 3rd heat exchanger (23)；
Described 3rd heat exchanger (23) includes for the first sub-heat exchanger (231) of Double-flow-channel heat exchanger and the second flow passage of described first sub-heat exchanger (231) the tertiary circuit carrying out heat exchange with its first flow and the 3rd sub-heat exchanger (233) being connected in described tertiary circuit；
Described first sub-heat exchanger (231) be connected in described first loop and be located at the inside of described assembly casing (4), the second heat exchanger (22) windward to side.
2. electric automobile air-conditioning system as claimed in claim 1, it is characterized in that, the pipeline of the inlet side of described first expansion valve (31) is provided with the first stop valve (61), and the pipeline of the inlet side of described second expansion valve (32) is provided with the second stop valve (62)；
Described first heats pipeline (221) connects or interrupts connection by described first stop valve (61) with described first expansion valve (31), and described first heats pipeline (221) is connected with described second expansion valve (32) by described second stop valve (62) or interrupts connection.
3. electric automobile air-conditioning system as claimed in claim 2, it is characterized in that, the port of export of described compressor (1) connects the second three-way valve (52), first outlet (52b) of described second three-way valve (52) is connected with the first end of described First Heat Exchanger (21), and the second outlet (52c) of described second three-way valve (52) is connected with the entrance point of described second heat exchanger (22).
4. electric automobile air-conditioning system as claimed in claim 3, it is characterized in that, second end of described First Heat Exchanger (21) connects the first refrigeration pipe (211), and this first refrigeration pipe (211) heats pipeline (221) with described first and connects；Described first refrigeration pipe (211) is provided with the first check valve (71), and described first heats pipeline (221) is provided with the second check valve (72)；
Described first refrigeration pipe (211) and described first heats and is communicated with intermediary's pipeline (11) between pipeline (221), and the other end of this intermediary's pipeline (11) entrance point with the entrance point of described first stop valve (61) with described second stop valve (62) respectively connects, described first check valve (71) makes the cold-producing medium in the first refrigeration pipe (211) be flowed to described intermediary pipeline (11) by the second end of described First Heat Exchanger (21), described second check valve (72) makes the first cold-producing medium heating in pipeline (221) be flowed to described intermediary pipeline (11) by the port of export of described second heat exchanger (22).
5. electric automobile air-conditioning system as claimed in claim 4, it is characterised in that be further provided with exsiccator (8) in described intermediary pipeline (11).
6. electric automobile air-conditioning system as claimed in claim 1, it is characterized in that, described air conditioning system also includes the first three-way valve (51), and this first three-way valve (51) is connected with the entrance point of described compressor (1) with its outlet (51c), it is connected with the first end of described First Heat Exchanger (21) with its first import (51a), is connected with the port of export of its second import (51b) with described first sub-heat exchanger (231).
7. an electric automobile air-conditioning system, the first loop including compressor (1) and being connected with described compressor (1) and second servo loop；Described air conditioning system also includes First Heat Exchanger (21), the second heat exchanger (22), the 3rd heat exchanger (23), the first expansion valve (31) and the second expansion valve (32)；
The inside of evaporation assembly casing (4) of air conditioning for automobiles is all located at by described second heat exchanger (22) and described 3rd heat exchanger (23), and described 3rd heat exchanger (23) be located at described second heat exchanger (22) windward to side；
During refrigeration, described compressor (1) is sequentially connected with now to have the First Heat Exchanger (21) of condenser function, the second expansion valve (32) and have the 3rd heat exchanger (23) of evaporator function and forms described first loop；
When heating, described compressor (1) is sequentially connected with to have second heat exchanger (22) of condenser function, the first expansion valve (31) and now have the First Heat Exchanger (21) of evaporator function and forms described second servo loop；
It is characterized in that, first connected by the port of export of described second heat exchanger (22) heats pipeline (221) and selects one connect with described first expansion valve (31) and described second expansion valve (32), so that first heats pipeline (221) and connects with the first expansion valve (31) described in when individually heating, heat with except first heating pipeline (221) and connect with described second expansion valve (32) described in during mist simultaneously, and flow directly into described 3rd heat exchanger (23)；
Described 3rd heat exchanger (23) includes the tertiary circuit carrying out heat exchange for the first sub-heat exchanger (231) and the described first sub-heat exchanger (231) of Double-flow-channel heat exchanger and the second sub-heat exchanger (232) being connected in described tertiary circuit；
Described first sub-heat exchanger (231) is connected in described first loop, the inside of described evaporation assembly casing (4) is located at by described second sub-heat exchanger (232), and described second sub-heat exchanger (232) be located at described second heat exchanger (22) windward to side；Described tertiary circuit includes the first intake line (234a) being connected to the entrance point of described second sub-heat exchanger (232) and is connected to the port of export the first output pipe (234b) of described second sub-heat exchanger (232)；
Described air conditioning system also includes threeway ratio adjusting valve (54), and described threeway ratio adjusting valve (54) is connected in described first intake line (23a) with its import (54a) and the second outlet (54c)；
Described 3rd heat exchanger (23) also includes the 3rd sub-heat exchanger (233), first outlet (54b) of described threeway ratio adjusting valve (54) is connected with the entrance point of described 3rd sub-heat exchanger (233) by the second intake line (233a), and the port of export of the 3rd sub-heat exchanger (233) is connected with the port of export of described second sub-heat exchanger (232) by the second output pipe (233b).
8. electric automobile air-conditioning system as claimed in claim 1, it is characterized in that, described second output pipe (233b) is provided with the 3rd three-way valve (53), and the 3rd three-way valve (53) is connected on described second output pipe (233b) with its import (53a) and the first outlet (53b)；
Described 3rd three-way valve (53) connects with its second outlet (53c) entrance point with the second sub-heat exchanger (232) further.
9. electric automobile air-conditioning system as claimed in claim 7 or 8, it is characterized in that, the quantity of described 3rd sub-heat exchanger (233) is multiple, and each described 3rd sub-heat exchanger (233) is connected in parallel on described second intake line (233a)；The entrance point of any one the 3rd sub-heat exchanger (233) is respectively connected with two regulating valves (233c).
10. electric automobile air-conditioning system as claimed in claim 9, it is characterized in that, the pipeline of the inlet side of described first expansion valve (31) is provided with the first stop valve (61), and the pipeline of the inlet side of described second expansion valve (32) is provided with the second stop valve (62)；
Described first heats pipeline (221) connects or interrupts connection by described first stop valve (61) with described first expansion valve (31), and described first heats pipeline (221) is connected with described second expansion valve (32) by described second stop valve (62) or interrupts connection.
11. electric automobile air-conditioning systems as claimed in claim 10, it is characterized in that, the port of export of described compressor (1) connects the second three-way valve (52), first outlet (52b) of described second three-way valve (52) is connected with the first end of described First Heat Exchanger (21), and the second outlet (52c) of described second three-way valve (52) is connected with the entrance point of described second heat exchanger (22).
12. electric automobile air-conditioning systems as claimed in claim 11, it is characterized in that, second end of described First Heat Exchanger (21) connects the first refrigeration pipe (211), and this first refrigeration pipe (211) heats pipeline (221) with described first and connects；Described first refrigeration pipe (211) is provided with the first check valve (71), and described first heats pipeline (221) is provided with the second check valve (72)；
Described first refrigeration pipe (211) and described first heats and is communicated with intermediary's pipeline (11) between pipeline (221), and the other end of this intermediary's pipeline (11) entrance point with the entrance point of described first stop valve (61) with described second stop valve (62) respectively connects, described first check valve (71) makes the cold-producing medium in the first refrigeration pipe (211) be flowed to described intermediary pipeline (11) by the second end of described First Heat Exchanger (21), described second check valve (72) makes the first cold-producing medium heating in pipeline (221) be flowed to described intermediary pipeline (11) by the port of export of described second heat exchanger (22).
13. electric automobile air-conditioning systems as claimed in claim 12, it is characterised in that be further provided with exsiccator (8) in described intermediary pipeline (11).
14. electric automobile air-conditioning systems as claimed in claim 7, it is characterized in that, described air conditioning system also includes the first three-way valve (51), and this first three-way valve (51) is connected with the entrance point of described compressor (1) with its outlet (51c), it is connected with the first end of described First Heat Exchanger (21) with its first import (51a), is connected with the port of export of its second import (51b) with described first sub-heat exchanger (231).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110338502.1A CN103090463B (en) | 2011-10-31 | 2011-10-31 | Electric automobile air-conditioning system |
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| CN201110338502.1A CN103090463B (en) | 2011-10-31 | 2011-10-31 | Electric automobile air-conditioning system |
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| CN108248331B (en) * | 2016-12-29 | 2023-11-14 | 比亚迪股份有限公司 | Heat pump air conditioning system and electric automobile |
| CN110471475B (en) * | 2019-08-14 | 2021-05-28 | 中国商用飞机有限责任公司 | Temperature regulation system and application method implemented by same |
| CN113306451B (en) * | 2021-06-08 | 2023-01-31 | 侯静霞 | Battery pack temperature control device, electric vehicle and control method thereof |
| KR20240038766A (en) * | 2021-07-30 | 2024-03-25 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Thermal management systems and vehicles |
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| JP2684668B2 (en) * | 1988-02-18 | 1997-12-03 | 株式会社デンソー | Vehicle air conditioner |
| JP2979802B2 (en) * | 1991-12-27 | 1999-11-15 | 株式会社デンソー | Air conditioner |
| CN1119261A (en) * | 1994-06-02 | 1996-03-27 | Lg电子株式会社 | Dewaterring apparatus and method of air conditioner |
| KR19980076725A (en) * | 1997-04-14 | 1998-11-16 | 윤종용 | Control method of HVAC and HVAC |
| CN101710759B (en) * | 2009-11-11 | 2011-08-17 | 厦门金龙联合汽车工业有限公司 | Heat management device of electric car and use method thereof |
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