CN104712791A - Expansion device, air conditioner device with same and car air conditioner - Google Patents
Expansion device, air conditioner device with same and car air conditioner Download PDFInfo
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- CN104712791A CN104712791A CN201310694634.7A CN201310694634A CN104712791A CN 104712791 A CN104712791 A CN 104712791A CN 201310694634 A CN201310694634 A CN 201310694634A CN 104712791 A CN104712791 A CN 104712791A
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- air
- heat exchanger
- communicated
- connecting passage
- expansion gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an air conditioner. Based on a traditional car air conditioner box, a heat exchanger for using engine waste heat of a traditional car is replaced with a condenser in a heat pump system, an expansion device is arranged at the connecting position of an inlet/outlet connecting pipe of the traditional car air conditioner box, four connecting holes of the expansion device are communicated with the inlet/outlets of two heat exchangers in the air conditioner box, the other four connecting holes of the expansion device form a new inlet/outlet to be communicated with other components of the air conditioner system, and the air conditioner system is formed. The expansion device has throttle and connector functions and can meet two throttle requirements, and a refrigerant pipeline connected between the air conditioner system and the air conditioner box is more compact. Besides, the expansion device, air conditioner device with same and car air conditioner are modified based on an air conditioner box shell of the existing car air conditioner, so that the cost of the air conditioner device can be reduced.
Description
Technical field
The present invention relates to car air conditioner, particularly relate to a kind of air-conditioning box used for automobile air conditioning.
Background technique
Along with the development of low-carbon economy, stricter requirement is proposed to energy-saving and emission-reduction, countries in the world are all using the strategic direction of new-energy automobile as automobile industry development, and electric vehicle or hybrid vehicle are owing to there being energy-conserving and environment-protective, become one of auto trend from now on.But electric vehicle is owing to using battery as power resources, and battery is as core component, and its cost and capacity/weight govern the development of new-energy automobile; Its air-conditioning system is equally also different from original automotive air-conditioning system: traditional internal combustion engine type automobile, uses engine-driving belt pulley compressor to freeze, utilizes the waste heat of internal-combustion engine and the heat of engine exhaust to carry out vehicle cabin on the other hand; Electric vehicle uses motor compressor to freeze, and the heat but lacked as traditional combustion engine formula motor can utilize.For making electric automobile air-conditioning system to provide heat, the technology of current commonplace use utilizes electrical energy drive ptc heater, and the heat utilizing ptc heater to produce carries out heating to passenger compartment.
Heat owing to utilizing PTC and need to consume a large amount of electric energy, the distance travelled of electric vehicle can be reduced, and, the heating efficiency of electric heater is less than 1, there is certain energy loss, in addition, because electric vehicle can cannot utilize the waste heat of internal-combustion engine and the heat of engine exhaust to carry out vehicle cabin as orthodox car.Like this, the air-conditioning box of orthodox car cannot be directly converted in electric vehicle, needs to redesign a kind of new air-conditioning box to be applicable to the air-conditioning system of electric vehicle, can increase the cost of electric vehicle.
Like this, how to provide a kind of and become without the need to the aircondition redesigning new air-conditioning box, utilize the air-conditioning box of orthodox car can meet electric automobile air-conditioning system the technical problem that technician is badly in need of solution.
Summary of the invention
In order to overcome the shortcoming needing to redesign air-conditioning box existed in prior art, reach the object reduced costs, the invention provides a kind of aircondition used for automobile air conditioning, motor compressor not only can be used to drive freeze, heat pump cycle can also be utilized to provide heat to carry out passenger compartment heating, utilize heat pump cycle to provide the Energy Efficiency Ratio of heat greatly to improve than ptc heater.
The invention provides a kind of expansion gear, comprise valve assembly and coil, valve assembly comprises valve body and spool, described valve body comprises the first inner joint be positioned on a side, second inner joint, 3rd inner joint and the 4th inner joint, described valve body also comprises and is positioned at the first external tapping on relative another side, second external tapping, 3rd external tapping and the 4th external tapping, the first connecting passage connecting described first inner joint and the first external tapping is formed in described valve body, connect the second connecting passage of described second inner joint and the second external tapping, connect the 3rd connecting passage of described 3rd inner joint and the 3rd external tapping, connect the 4th connecting passage and the 5th connecting passage of described 4th inner joint and the 4th external tapping, restriction is formed in described first connecting passage, the flow of fluid by described restriction can be controlled by described spool, described 5th connecting passage is communicated with described 4th connecting passage and the first connecting passage, the flow controller with at least one through throttle orifice is provided with in described 5th connecting passage, described throttle orifice is communicated with described 4th connecting passage and the first connecting passage.
Preferably, described first connecting passage is divided into two sections, one section is communicated with described first inner joint, another section is communicated with described first external tapping, be communicated with by throttle orifice between two sections of connecting passages, described 5th connecting passage is communicated with a section that described first connecting passage is communicated with the first external tapping, described 5th connecting passage comprises the first connection chamber and the second connection chamber, described first connection chamber is communicated with described first external tapping, described second connection chamber is communicated with the 4th connecting passage, and described flow controller is fixedly mounted in described first connection chamber; The port of described 5th connecting passage is also provided with hermetic terminal, when described flow controller and described hermetic terminal are arranged in described 5th connecting passage, does not interfere described first connecting passage and the 4th connecting passage.
The present invention also provides a kind of aircondition, comprise air-conditioning box, also comprise above-mentioned expansion gear, described expansion gear is arranged on described air-conditioning box, described air-conditioning box comprises air-conditioning box shell and is arranged on the First Heat Exchanger in described air-conditioning box shell, second heat exchanger, blower, temperature damper, cycle throttle and air-supply air door, the inside of described air-conditioning box shell is formed with the air channel for air flowing, intake grill and air blowing opening, each inner joint on described expansion gear is communicated with the import and export on the second heat exchanger with described First Heat Exchanger respectively by pipeline, described air-conditioning box shell also comprises the support for installing described expansion gear, described support is a flat surface towards the outer side of air-conditioning box shell, described support offers the opening that at least two run through described support, the connecting tube connecting described First Heat Exchanger is positioned at the bottom of the opening on described support and passes clamping on the bracket, the connecting tube connecting described second heat exchanger is positioned at the open end side of the opening on described support and passes clamping on the bracket.
Preferably, opening on described support is U-shaped opening, at least two pressing plates are also provided with between described support and expansion gear, described pressing plate offers two orthogonal bayonet sockets of opening direction, connect described expansion gear and First Heat Exchanger, the connecting tube of the second heat exchanger is connected in described bayonet socket; Described expansion gear is bolted on described pressing plate, and described pressing plate and described support are abutted against.
Preferably, described air-conditioning box shell outer wall offers the 3rd opening near the position holding described second heat exchanger, described second heat exchanger is stretched in air-conditioning box shell by the 3rd opening, and is fixed on air-conditioning box shell by least one in buckle, screw is dismountable.
Optionally, described air-conditioning box also comprises the auxiliary heater being arranged on described second heat exchanger downstream side, and described auxiliary heater is electric heater, and described First Heat Exchanger and the second heat exchanger are micro-channel heat exchanger.
Preferably, the first wind passage mouth and the second wind passage mouth is provided with in the downstream of described First Heat Exchanger, air channel is divided into two-way by described first wind passage mouth and the second wind passage mouth, described second wind passage mouth of leading up to is communicated with the second air channel, heat exchanger place, described first wind passage mouth of separately leading up to walks around described second heat exchanger, described temperature damper is arranged on the air channel between described First Heat Exchanger and the second heat exchanger, and described temperature damper can rotate between described first wind passage mouth and the second wind passage mouth.
Preferably, described air-supply air door comprises the first air-supply air door and the second air-supply air door, described air blowing opening comprises the first air blowing opening, the second air blowing opening and the 3rd air blowing opening, the 3rd wind passage mouth is provided with in the air channel near the first air blowing opening, the 6th wind passage mouth is provided with in the air channel near the second air blowing opening, near the 3rd air blowing opening and the position adjacent with the 6th wind passage mouth is provided with tendencies road junction, the position between the 3rd wind passage mouth and tendencies road junction, the 6th wind passage mouth is provided with the 4th wind passage mouth; Described first air-supply air door is arranged between the 3rd wind passage mouth and the 4th wind passage mouth, described second air-supply air door is arranged between tendencies road junction and the 6th wind passage mouth, first air-supply air door can rotate between the 3rd wind passage mouth and the 4th wind passage mouth, and the second air-supply air door can rotate between tendencies road junction and the 6th wind passage mouth.
The present invention also provides a kind of car air conditioner, comprise above-mentioned aircondition, the outlet of compressor is communicated with the 3rd external tapping on described expansion gear by pipeline, 4th external tapping is communicated with the first solenoid valve by pipeline, out two-way is divided into afterwards from the first solenoid valve, one tunnel is communicated with expansion valve, the inlet communication of another road and outdoor heat exchanger; Heat exchanger is out divided into two-way afterwards outdoor, and one-way valve of leading up to is communicated with the first external tapping of expansion gear, separately leads up to the second solenoid valve, gas-liquid separator to be connected with the entrance of compressor; Out be divided into two-way afterwards from expansion valve, lead up to the second orifice of pipeline and expansion gear, separately leading up to the 3rd solenoid valve, gas-liquid separator is connected with the entrance of compressor.
Preferably, described car air conditioner comprises refrigeration and heat-production functions, and when freezing, described first solenoid valve is opened, and the refrigeration agent entering described expansion gear from the 4th inner joint leaves expansion gear from described 4th external tapping; When heating, described first closed electromagnetic valve, the refrigeration agent entering described expansion gear from the 4th inner joint flow in described first connecting passage through the throttle orifice on the flow controller described 5th connecting passage, and flows out described expansion gear by the first inner joint.
Expansion gear on aircondition of the present invention has throttling and connector function, and enable expansion gear meet the needs of two kinds of throttlings, air-conditioning system is made to be connected to the refrigerant line of air-conditioning box compacter, transformation can be carried out on the basis of the air-conditioning box shell of existing car air conditioner to obtain, the cost of aircondition can be reduced.
Accompanying drawing explanation
Fig. 1 is the structural representation of aircondition of the present invention;
Fig. 2 is the composition schematic diagram of aircondition shown in Fig. 1;
Fig. 3 is the close-up schematic view of Fig. 2;
Fig. 4 is the cross-sectional schematic of aircondition shown in Fig. 1;
Fig. 5 is the schematic perspective view of expansion gear in aircondition shown in Fig. 1;
Fig. 6 is the schematic perspective view at another visual angle of expansion gear shown in Fig. 5;
Fig. 7 is the schematic front view of expansion gear;
Fig. 8 is the A-A cross-sectional schematic of Fig. 7;
Fig. 9 is the B-B cross-sectional schematic of Fig. 7;
Figure 10 is the partial schematic sectional view of Fig. 7;
Figure 11 is the structural representation of the car air conditioner with aircondition of the present invention.
Embodiment
Aircondition of the present invention, on the basis of orthodox car air-conditioning box, the heat exchanger of the engine exhaust heat of orthodox car is utilized to replace with condenser in heat pump by being used for placing, and the import and export nozzle conjunction location of orthodox car air-conditioning box is provided with expansion gear, four attachment holes of expansion gear are communicated with the import and export of the heat exchanger of two in air-conditioning box respectively, and other members that other four attachment holes of expansion gear form new import and export and air-conditioning system forms air-conditioning system.
Below in conjunction with the drawings and specific embodiments, aircondition used for automobile air conditioning of the present invention is specifically described.
Fig. 1 is the structural representation of aircondition of the present invention, Fig. 2 is the composition schematic diagram of aircondition shown in Fig. 1, Fig. 3 is the close-up schematic view of Fig. 2, Fig. 4 is the cross-sectional schematic of aircondition shown in Fig. 1, wherein Fig. 2 is in order to clearly demonstrate the composition of aircondition of the present invention, has clipped part enclosure.
As shown in Figures 1 to 4, the expansion gear 110 that aircondition 10 of the present invention comprises air-conditioning box 100 and is arranged on air-conditioning box, air-conditioning box 100 comprises First Heat Exchanger 101, second heat exchanger 102, auxiliary heater 103, blower 104, temperature damper 105, cycle throttle 106, air-supply air door 109 and for holding First Heat Exchanger 101, second heat exchanger 102, auxiliary heater 103, blower 104, temperature damper 105, cycle throttle 106, the air-conditioning box shell 111 of air-supply air door 109, wherein, First Heat Exchanger and the second heat exchanger are micro-channel heat exchanger, auxiliary heater is electric heater.Air-conditioning box shell 111 offers Inner eycle air port 107, outer circulation air port 108, air blowing opening and the support 119 for fixed expansion device 110, air enters in air-conditioning box 100 from Inner eycle air port 107 and outer circulation air port 108, flows out air-conditioning box 100 from air blowing opening.
The air channel for air flowing is also formed in air-conditioning box shell 111, along the direction that air flows in air channel, blower 104 is arranged near Inner eycle air port 107, the air channel downstream part in outer circulation air port 108, air enters in air-conditioning box shell 111 from Inner eycle air port 107 and/or outer circulation air port 108, air stream A is become through blower 104 adherence pressure, enable to flow in the air channel of air in air-conditioning box shell, this Airflow A is to the First Heat Exchanger flowing being positioned at blower 104 downstream part.
First Heat Exchanger 101 is arranged on the downstream of blower 104, the downstream part of First Heat Exchanger 101 is provided with the first wind passage mouth 1051 and the second wind passage mouth 1052, second heat exchanger 102 is arranged on the downstream part of the second wind passage mouth 1052, air channel is divided into two-way by the first wind passage mouth 1051 and the second wind passage mouth 1052, described second wind passage mouth 1052 of leading up to is communicated with the second air channel, heat exchanger 102 place, and the first wind passage mouth 1051 of separately leading up to walks around the second heat exchanger 102.Also be provided with the temperature damper 105 of amount for regulating air to flow and flow direction in air channel between First Heat Exchanger 101 and the second heat exchanger 102, temperature damper 105 can rotate between the first wind passage mouth 1051 and the second wind passage mouth 1052.Auxiliary heater is arranged on the downstream part near the second heat exchanger 102.
Air stream A, when through First Heat Exchanger 101, carries out heat exchange with the heat transferring medium in First Heat Exchanger 101, air stream A through with the heat transferring medium heat exchange in First Heat Exchanger 101 after become air stream B.Now, the temperature damper 105 be arranged between First Heat Exchanger 101 and the second heat exchanger 102 controls the flowing of air stream B, and temperature damper 105 can control the flowing of air stream B in the following manner:
1, temperature damper 105 controls air stream B and all flows to the second heat exchanger 102, and now temperature damper 105 closes the first wind passage mouth 1051;
2, temperature damper 105 controls air stream B and does not all flow to the second heat exchanger 102, and now temperature damper 105 closes the second wind passage mouth 1052;
3, temperature damper control section air stream B flows to the second heat exchanger 102, and partial air flows to First Heat Exchanger 101, and now temperature damper 105 is between the first wind passage mouth 1051 and the second wind passage mouth 1052.
When air stream B flows to the second heat exchanger 102 by the second wind passage mouth 1052, air stream B through the second heat exchanger 102 time, heat transferring medium in air stream B and the second heat exchanger 102 carries out the heat of heat exchange absorption heat-exchange medium, and air stream B becomes air stream C after the second heat exchanger 102 heats.If auxiliary heater 103 is opened, then air stream C is further heated by auxiliary heater, and the temperature of air stream C further raises.Air stream C becomes air stream D after mixing with the air stream B phase by the first wind passage mouth 1051 afterwards.
The downstream of air flow channel is provided with air-supply air door 109 near air blowing opening place, air-supply air door 109 comprises the first air-supply air door 109a and second air-supply air door 109b, and air blowing opening comprises the first air blowing opening 109c, the second air blowing opening 109d and the 3rd air blowing opening 109f.The 3rd wind passage mouth 1053 is provided with in the air channel near the first air blowing opening 109c, the 6th wind passage mouth 1056 is provided with in the air channel near the second air blowing opening 109d, near the 3rd air blowing opening 109f and the 6th wind passage mouth 1056 adjacent position is provided with tendencies road junction 1055, between the 3rd wind passage mouth 1053 and tendencies road junction 1055, the 6th wind passage mouth 1056, be provided with the 4th wind passage mouth 1054.First air-supply air door 109a is arranged between the 3rd wind passage mouth 1053 and the 4th wind passage mouth 1054, and the second air-supply air door 109b is arranged between tendencies road junction 1055 and the 6th wind passage mouth 1056.First air-supply air door 109a can rotate between the 3rd wind passage mouth 1053 and the 4th wind passage mouth 1054, and the second air-supply air door 109b can rotate between tendencies road junction 1055 and the 6th wind passage mouth 1056.
The air stream D after converging can be controlled by assignment of traffic when the 3rd wind passage mouth 1053 and the 4th wind passage mouth 1054 by the first air-supply air door 109a, can be controlled from the 4th wind passage mouth 1054 air stream D out by assignment of traffic when tendencies road junction 1055 and the 6th wind passage mouth 1056 by the second air-supply air door 109b.The mode that mode and the temperature damper 105 above of the first air-supply air door 109a and second air-supply air door 109b control air stream control air stream is identical or similar, is no longer described in detail here.
Through the adjustment of air-supply air door, air stream D flows out air-conditioning box shell 111 from air blowing opening, concrete, according to the present position of the first air-supply air door 109a and second air-supply air door 109b, air stream D can flow out air-conditioning box shell 111 from one of them the first air blowing opening 109c, the second air blowing opening 109d and the 3rd air blowing opening 109f.In the present embodiment, air-supply air door 109 air distribution stream D is to the air quantity of passenger compartment, and 109c is face's air blowing opening, and 109d is front windshield air blowing opening, and 109f is foot's air blowing opening.By regulating air-supply air door 109a, blowing face air quantity and blowing front windshield+by the air quantity summation of blowing pin of 109e by 109d of 109c can be dispensing by, by regulating air-supply air door 109b, blowing front windshield air quantity and blowing pin air quantity by 109e of 109d can be dispensing by.
As shown in Figure 4, First Heat Exchanger 101 and the second heat exchanger 102 are all arranged in air-conditioning box shell 111, wherein air-conditioning box shell 111 outer wall offers the 3rd opening 1021 near the position holding the second heat exchanger 102, second heat exchanger 102 can be stretched in air-conditioning box shell 111 by the 3rd opening 1021, and is fixed on air-conditioning box shell 111 by the mode such as buckle, screw is dismountable.Same, auxiliary heater 103 also can be fixed on air-conditioning box shell 111 by same mode.
Here should be understood that, in air-conditioning box, also auxiliary heater 103 can not be set, in present embodiment, the downstream part of the second heat exchanger 102 is provided with auxiliary heater 103, better can be controlled the temperature of air stream by auxiliary heater 103, the temperature of air-conditioning system is controlled more accurate.
The sidewall of air-conditioning box shell 111 is formed with the support 119 of platform-like, support 119 has flat surface on the outer side of air-conditioning box shell 111, support 119 offers the U-shaped opening that at least two run through support 119, is respectively the first opening 1191 and the second opening 1192.The import of connection First Heat Exchanger 101 and the second heat exchanger 102 and the first inlet tube 101a, the first outer pipe 101b of outlet, the second inlet tube 102a and the second outer pipe 102b pass the first opening 1191 and the second opening 1192.Wherein the first inlet tube 101a, the first outer pipe 101b lay respectively at the bottom of the first opening 1191 and the second opening 1192, and the second inlet tube 102a and the second outer pipe 102b is then near the opening end of the first opening 1191 and the second opening 1192.In the present embodiment, the first inlet tube 101a and the second outer pipe 102b is through the second opening 1192 and maintain a certain distance two pipes, and the first outer pipe 101b and the second inlet tube 102a is through the first opening 1191 and maintain a certain distance two pipes.
Like this, second inlet tube 102a and the second outer pipe 102b is arranged on the opening end of U-shaped opening, the second heat exchanger 102 can be made and connect the second heat exchanger 102 import and export the second inlet tube 102a and the second outer pipe 102b is dismountable is fixed on air-conditioning box shell 111, during installation, second heat exchanger 102 inserts air-conditioning box shell 111, second inlet tube 102a and the second outer pipe 102b by the 3rd opening 1021 and is then connected in the first opening 1191 and the second opening 1192; During dismounting, the second heat exchanger 102 exits air-conditioning box shell 111 by the 3rd opening 1021, and meanwhile, the second inlet tube 102a and the second outer pipe 102b exits the first opening 1191 and the second opening 1192.The dismounting at any time of the second heat exchanger 102 can be realized like this, facilitate the maintenance of air-conditioning box 100 and the replacing of the second heat exchanger 102, also can improve the utilization of air-conditioning box simultaneously, when this air-conditioning box is used in orthodox car, then change the second heat exchanger for being applicable to orthodox car heat exchanger of air conditioner, when this air-conditioning box is applicable to electric vehicle, then the second heat exchanger is for being applicable to electric automobile air conditioner heat exchanger, the needs that air-conditioning box is applicable to multiple air-conditioning system can be realized like this, greatly can reduce the cost of car air conditioner.
First inlet tube 101a and the first outer pipe 101b are connected with pressing plate 117, pressing plate 117 is fixedly mounted in the flat surface of support 119, concrete, pressing plate 117 can offer the identical or contrary bayonet socket of two opening directions, also can be offer two orthogonal bayonet sockets of opening direction, in the present embodiment, pressing plate 117 offers two orthogonal bayonet sockets of opening direction, this setup can improve the first inlet tube 101a, stability between the first outer pipe 101b and pressing plate 117.Same, the second inlet tube 102a and the second outer pipe 102b are connected with pressing plate 117.
As depicted in figs. 1 and 2, expansion gear 110 can be bolted on pressing plate 117, concrete, expansion gear 110 is provided with multiple attachment hole 116, two pressing plates 117 are also provided with the multiple tapped hole 117as corresponding with attachment hole 116, bolt 118 passes attachment hole 116 and is tightened in tapped hole 117a, and the connecting tube of expansion gear and each heat exchanger links together, and each connecting tube and the U-shaped open card on support connect in succession, like this, make together with expansion gear and support abut against mutually, thus expansion gear 110 and pressing plate are fixed on air-conditioning box shell 111.
As shown in Fig. 5 to Figure 10, expansion gear 110 comprises valve assembly and coil 1102, and wherein valve assembly comprises valve body 1101 and spool, and a part for spool stretches in valve body 1101 (not shown in FIG.), another part is arranged with coil 1102.
Valve body 1101 comprises the first inner joint 111a be positioned on a side, second inner joint 111b, 3rd inner joint 112a, 4th inner joint 112b, also comprise and be positioned at the first external tapping 111A on relative another side, second external tapping 111B, 3rd external tapping 112A, 4th external tapping 112B, first connecting passage 11011 of connection first inner joint 111a and the first external tapping 111A is formed in valve body 1101, connect second connecting passage 11012 of the second inner joint 111b and the second external tapping 111B, connect the 3rd connecting passage 11013 of the 3rd inner joint 112a and the 3rd external tapping 112A, connect the 4th connecting passage 11014 of the 4th inner joint 112b and the 4th external tapping 112B, and the 5th connecting passage 113.
Wherein be formed with throttle orifice (not shown in FIG.) in the first connecting passage 11011, like this, there is certain difference of height to form restriction between first inner joint 111a and the first external tapping 111A, that is the first connecting passage 11011 is divided into two sections, one section is communicated with the first inner joint 111a, another section is communicated with the first external tapping 111A, is communicated with between two sections of connecting passages by restriction.The size of orifice openings can be regulated to control the flow of refrigeration agent by the needle in spool (for drawing in figure), can open completely and closing the first connecting passage 11011 completely, the flowing of refrigeration agent when closing completely, can be ended.
Second connecting passage 11012, the 3rd connecting passage 11013 and the 4th connecting passage 11014 are straight line type passage.
5th connecting passage 113 be communicated with the 4th connecting passage 11014 with one section that the first connecting passage 11011 is communicated with the first external tapping 111A, 5th connecting passage 113 comprises the first coaxial connection chamber 1131 and the second connection chamber 1133, all there is internal thread in first connection chamber 1131 and the second connection chamber 1133, and the internal diameter of the first connection chamber 1131 is less than the internal diameter of the second connection chamber 1133.First connection chamber 1131 is communicated with the first external tapping 111A, and the second connection chamber 1133 is communicated with the second external tapping 112B with the second inner joint 112b.
Expansion gear 110 also comprises the flow controller 114 be arranged in the 5th connecting passage 113, the outer circumferential side of flow controller 114 is provided with the outside thread corresponding with the internal thread on the first connection chamber 1131, matched by the internal thread on the outside thread on outer circumferential side and the first connection chamber 1131, flow controller 114 is fixedly mounted in the first connection chamber 1131 of the 5th connecting passage 113, in order to improve the sealing of flow controller 114, seal ring can also be set on the outer circumferential side of flow controller 114.Concrete, in the part of flow controller 114 on the 5th connecting passage 113 between first external tapping 111A and the 4th external tapping 112B.The centre of flow controller 114 is provided with the throttle orifice of at least one axis, can be communicated with the first connection chamber 1131 and the second connection chamber 1133 by throttle orifice.Like this, first external tapping interface 111A is connected with the 4th inner joint 112b with the 4th external tapping 112B by the first connection chamber 1131, flow controller 114, second connection chamber 1133, when fluid by not flowing between the 4th external tapping 112B and the 4th inner joint 112b, then fluid can pass through flow controller 114.
The present invention by arranging the 5th connecting passage on valve body, and by arranging flow controller in the 5th connecting passage, two throttling arrangements are integrated into one, make expansion gear possess two kinds of throttling function, have pipeline connect compact, take up room little, the beneficial effect such as cost is low.
In the port of the 5th connecting passage 113, be also provided with hermetic terminal 115, the outer circumferential side of hermetic terminal 115 be provided with outside thread and seal ring, sealed by hermetic terminal 115, prevent heat transferring medium from flowing out expansion gear.
Here should be understood that, in the present embodiment, do not interfere the first connecting passage 11011 and the 4th connecting passage 11014 when flow controller 114 and hermetic terminal 115 are arranged in the 5th connecting passage 113, when can prevent heat transferring medium from flowing in the 4th connecting passage 11014 like this, pressure drop is excessive.
First inner joint 111a can be connected with the first inlet tube 101a of First Heat Exchanger, second inner joint 111b can be connected with the first outer pipe 101b of First Heat Exchanger, and the 3rd inner joint 112a can be connected with the second inlet tube 102a of the second heat exchanger 102, the 4th inner joint 112b can be connected with the second outer pipe 102b of the second heat exchanger 102.Like this, heat transferring medium can flow into each heat exchanger from external tapping by expansion gear 110 and connecting tube, then is flowed out from other external tapping by connecting tube and expansion gear.Wherein, by first external tapping 111A flow into heat transferring medium be refrigeration agent, refrigeration agent at the throttle orifice in the first connecting passage 11011 by reducing pressure by regulating flow.
Be specifically described below in conjunction with the working principle of car air conditioner to aircondition 10.
Figure 11 is the structural representation of the car air conditioner with aircondition, and this car air conditioner can be applied on electric vehicle.As shown in the figure, the outlet of compressor 1 is communicated with the 3rd external tapping 112A on expansion gear 110 by pipeline, 4th external tapping 112B is communicated with the first solenoid valve 41 by pipeline, out two-way is divided into afterwards from the first solenoid valve 41, one tunnel is communicated with expansion valve 5, the inlet communication of a road and outdoor heat exchanger 3.Outdoor heat exchanger 3 out after be also divided into two-way, one-way valve 6 of leading up to is communicated with the first external tapping 111A of expansion gear 110, separately leads up to the second solenoid valve 42, gas-liquid separator 2 to be connected with the entrance of compressor 1.From expansion valve 5 out after be also divided into two-way, pipeline of leading up to is communicated with the second interface 111B of expansion gear 110, separately leads up to the 3rd solenoid valve 43, gas-liquid separator 2 to be connected with the entrance of compressor 1.
Car air conditioner of the present invention comprises refrigeration mode, heating mode.
Refrigeration mode:
First solenoid valve 41, the 3rd solenoid valve 43 are opened, and the second solenoid valve 42 cuts out, and expansion valve 5 cuts out.Compressor 1 is delivered to the 3rd external tapping 112A refrigerant compression to the gaseous refrigerant of high pressure-temperature, and refrigeration agent through the second heat exchanger 102 from interface 112B out.Refrigeration agent enters outdoor heat exchanger 3 by the first solenoid valve 41, and refrigeration agent external heat release in outdoor heat exchanger 3 of this high pressure-temperature, outdoor air takes away heat, and the refrigeration agent that heat exchanger 3 exports out outdoor has been cooled and has been condensed into high-pressure liquid.The refrigeration agent that heat exchanger 3 exports out outdoor enters air-conditioning box 100 by one-way valve 6 from the first external tapping 111A, this flow of refrigerant is through expansion gear 110 and First Heat Exchanger 101, carry out heat exchange by First Heat Exchanger 101 with air stream A, after absorbing the heat in air stream A, leave air-conditioning box 100 from the first external tapping 111B.This refrigeration agent enters gas-liquid separator 2 through the 3rd solenoid valve 43, if refrigeration agent is still with liquid phase component, then be separated in gas-liquid separator 2, liquid phase refrigerant is stayed in gas-liquid separator, vapor phase refrigerant gets back to compressor 1 import, and be compressed to high pressure-temperature gaseous state by compressor 1, so complete a circulation.
According to the temperature of air stream B, temperature damper 105 and the second heat exchanger 102 can have different working staties.When air stream B temperature has reached travelling comfort requirement, temperature damper 105 closes the second wind passage mouth 1052 completely, and air stream B walks around the second heat exchanger 102 and auxiliary heater 103 directly delivers to passenger compartment from air-supply air door 109.When air stream B temperature is too low, then temperature damper 105 is between the first wind passage mouth 1051 and the second wind passage mouth 1052, makes partial air deliver to passenger compartment from air-supply air door 109 after heating.
Now, refrigeration agent enters into the second connection chamber 1133 by the 4th inner joint 112b, and because flow controller 114 flow resistance is very large, refrigeration agent almost all flows out expansion gear from the 4th external tapping 112B.
Heating mode:
Second solenoid valve 42 is opened, and the first solenoid valve 41, the 3rd solenoid valve 43 are closed, and expansion valve 5 is opened.Be now that throttle orifice aperture in the first connecting passage 11011 is maximum by the spool in adjustment expansion gear 10, open the first connecting passage 11011 completely.Compressor 1 is delivered to air-conditioning box the 3rd external tapping 112A refrigerant compression to the gaseous refrigerant of high pressure-temperature, be cooled through the refrigeration agent of the second heat exchanger 102 and be condensed to the liquid state of high pressure, because air-conditioning box the 4th external tapping 112B is ended by the first solenoid valve 41, be merely able to by the throttle orifice flowing in flow controller 114, pressure is lowered simultaneously.Due to one-way valve 6 backward stop, refrigeration agent is merely able to the throttle orifice in throttling arrangement 110 first connecting passage 11011, and pressure declines again, temperature reduces, and becomes the gas-liquid two-phase state of temperature in middle pressure, and enters First Heat Exchanger 101, now the temperature of refrigeration agent is still higher than the temperature of air stream A, by First Heat Exchanger 101 refrigeration agent to air stream A release heat, air stream A is heated as air stream B, and refrigeration agent leaves from the second external tapping 111B more afterwards.Compression refrigerant enters expansion valve 5 afterwards, and pressure declines to a great extent, and becomes the gas-liquid two-phase state of low-pressure low-temperature, and enters outdoor heat exchanger 3.This low-pressure low-temperature refrigeration agent absorbs heat in air outdoor in outdoor heat exchanger 3, and the refrigeration agent that heat exchanger 3 exports out outdoor has been heated and gasified as low-pressure gaseous, enters gas-liquid separator 2 by the second solenoid valve 42.If refrigeration agent is still with liquid phase component, be then separated in gas-liquid separator 2, liquid phase refrigerant is stayed in gas-liquid separator, and vapor phase refrigerant gets back to compressor 1 import, and is compressed to high pressure-temperature gaseous state by compressor 1, so completes a circulation.
Now temperature damper 105 closes the first wind passage mouth 1051 completely, air stream B temperature is risen to further and meets comfort level requirement.Auxiliary heater 103 selectively operating or do not work, depends on the overall applicability of air-conditioning system and determines.If ambient temperature is not abnormal low or do not need to be rapidly heated, travelling comfort requirement can be met after being heated by the second heat exchanger 102, auxiliary heater 103 can be selected not work.If the low or needs of ambient temperature exception are rapidly heated, auxiliary heater 103 can be selected to work, so can increase system heating capacity further and improve rate of heating.
Air stream C after the second heat exchanger 102 and auxiliary heater 103 has reached travelling comfort requirement, delivers in passenger compartment through air-supply air door 109.
In First Heat Exchanger 101, second heat exchanger 102 and auxiliary heater 103, what play main heat effect should be the second heat exchanger 102, and being secondly First Heat Exchanger 101, is then auxiliary heater 103, and what preferentially open also should be order like this.
Can find out that expansion gear 110 has by refrigeration mode and heating mode to intercept and the function being communicated with First Heat Exchanger 101 and the second heat exchanger 102, expansion gear is made to have throttling and connector function, and make expansion gear 110 can meet the needs of two kinds of throttlings, make air-conditioning system be connected to the refrigerant line of air-conditioning box compacter.
Here should be understood that, this air-conditioning box also can be applied in other car air conditioner, in car air conditioner, when the fluid refrigerant entering described expansion gear from the 4th inner joint can flow out from the 4th external tapping, refrigeration agent flows out from the 4th external tapping, when refrigeration agent can not flow out from the 4th external tapping, then flow in described first connecting passage from the throttle orifice on the flow controller the 5th connecting passage, and flow out described expansion gear by the first inner joint, concrete flowing specifically can set according to car air conditioner.
In addition, when this aircondition is applied on orthodox car air-conditioning, only need the flow controller on expansion gear to replace with the parts not having throttle orifice, now, first external tapping is connected refrigeration system with the second external tapping, the 3rd external tapping and the 4th external tapping connecting engine bootstrap system.
The above is only specific embodiments of the invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, are not departing under technical solution of the present invention ambit, above-mentioned announcement technology contents all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1. an expansion gear, comprise valve assembly and coil, valve assembly comprises valve body and spool, it is characterized in that, described valve body comprises the first inner joint be positioned on a side, second inner joint, 3rd inner joint and the 4th inner joint, described valve body also comprises and is positioned at the first external tapping on relative another side, second external tapping, 3rd external tapping and the 4th external tapping, the first connecting passage connecting described first inner joint and the first external tapping is formed in described valve body, connect the second connecting passage of described second inner joint and the second external tapping, connect the 3rd connecting passage of described 3rd inner joint and the 3rd external tapping, connect the 4th connecting passage of described 4th inner joint and the 4th external tapping, and the 5th connecting passage, restriction is formed in described first connecting passage, the flow of fluid by described restriction can be controlled by described spool, described 5th connecting passage is communicated with described 4th connecting passage and the first connecting passage, the flow controller with at least one through throttle orifice is provided with in described 5th connecting passage, described throttle orifice is communicated with described 4th connecting passage and the first connecting passage.
2. expansion gear according to claim 1, it is characterized in that, described first connecting passage is divided into two sections, one section is communicated with described first inner joint, another section is communicated with described first external tapping, be communicated with by described throttle orifice between two sections of connecting passages, described 5th connecting passage is communicated with a section that described first connecting passage is communicated with the first external tapping, described 5th connecting passage comprises the first connection chamber and the second connection chamber, described first connection chamber is communicated with described first external tapping, described second connection chamber is communicated with the 4th connecting passage, described flow controller is fixedly mounted in described first connection chamber, the port of described 5th connecting passage is also provided with hermetic terminal, when described flow controller and described hermetic terminal are arranged in described 5th connecting passage, does not interfere described first connecting passage and the 4th connecting passage.
3. an aircondition, comprise air-conditioning box, it is characterized in that, also comprise the expansion gear according to claims 1 or 2, described expansion gear is arranged on described air-conditioning box, described air-conditioning box comprises air-conditioning box shell and is arranged on the First Heat Exchanger in described air-conditioning box shell, second heat exchanger, blower, temperature damper, cycle throttle and air-supply air door, the inside of described air-conditioning box shell is formed with the air channel for air flowing, intake grill and air blowing opening, each inner joint on described expansion gear is communicated with the import and export on the second heat exchanger with described First Heat Exchanger respectively by pipeline, described air-conditioning box shell also comprises the support for installing described expansion gear, described support is a flat surface towards the outer side of air-conditioning box shell, described support offers the opening that at least two run through described support, the connecting tube connecting described First Heat Exchanger is positioned at the bottom of the opening on described support and passes clamping on the bracket, the connecting tube connecting described second heat exchanger is positioned at the open end side of the opening on described support and passes clamping on the bracket.
4. aircondition according to claim 3, it is characterized in that, opening on described support is U-shaped opening, at least two pressing plates are also provided with between described support and expansion gear, described pressing plate offers two orthogonal bayonet sockets of opening direction, connect described expansion gear and First Heat Exchanger, the connecting tube of the second heat exchanger is connected in described bayonet socket; Described expansion gear is bolted on described pressing plate, and described pressing plate and described support are abutted against.
5. the aircondition according to claim 3 or 4, it is characterized in that, described air-conditioning box shell outer wall offers the 3rd opening near the position holding described second heat exchanger, described second heat exchanger is stretched in air-conditioning box shell by the 3rd opening, and is fixed on air-conditioning box shell by least one in buckle, screw is dismountable.
6. aircondition according to claim 5, it is characterized in that, described air-conditioning box also comprises the auxiliary heater being arranged on described second heat exchanger downstream side, and described auxiliary heater is electric heater, and described First Heat Exchanger and the second heat exchanger are micro-channel heat exchanger.
7. aircondition according to claim 6, it is characterized in that, the first wind passage mouth and the second wind passage mouth is provided with in the downstream of described First Heat Exchanger, air channel is divided into two-way by described first wind passage mouth and the second wind passage mouth, described second wind passage mouth of leading up to is communicated with the second air channel, heat exchanger place, described first wind passage mouth of separately leading up to walks around described second heat exchanger, described temperature damper is arranged on the air channel between described First Heat Exchanger and the second heat exchanger, and described temperature damper can rotate between described first wind passage mouth and the second wind passage mouth.
8. aircondition according to claim 6, it is characterized in that, described air-supply air door comprises the first air-supply air door and the second air-supply air door, described air blowing opening comprises the first air blowing opening, the second air blowing opening and the 3rd air blowing opening, the 3rd wind passage mouth is provided with in the air channel near the first air blowing opening, the 6th wind passage mouth is provided with in the air channel near the second air blowing opening, near the 3rd air blowing opening and the position adjacent with the 6th wind passage mouth is provided with tendencies road junction, the position between the 3rd wind passage mouth and tendencies road junction, the 6th wind passage mouth is provided with the 4th wind passage mouth; Described first air-supply air door is arranged between the 3rd wind passage mouth and the 4th wind passage mouth, described second air-supply air door is arranged between tendencies road junction and the 6th wind passage mouth, first air-supply air door can rotate between the 3rd wind passage mouth and the 4th wind passage mouth, and the second air-supply air door can rotate between tendencies road junction and the 6th wind passage mouth.
9. a car air conditioner, it is characterized in that, comprise the aircondition described in any one of claim 3 to 8, the outlet of compressor is communicated with the 3rd external tapping on described expansion gear by pipeline, 4th external tapping is communicated with the first solenoid valve by pipeline, out be divided into two-way afterwards from the first solenoid valve, a road is communicated with expansion valve, the inlet communication of another road and outdoor heat exchanger; Heat exchanger is out divided into two-way afterwards outdoor, and one-way valve of leading up to is communicated with the first external tapping of expansion gear, separately leads up to the second solenoid valve, gas-liquid separator to be connected with the entrance of compressor; Out be divided into two-way afterwards from expansion valve, lead up to the second orifice of pipeline and expansion gear, separately leading up to the 3rd solenoid valve, gas-liquid separator is connected with the entrance of compressor.
10. car air conditioner according to claim 9, it is characterized in that, described car air conditioner comprises refrigeration and heat-production functions, when freezing, described first solenoid valve is opened, and the refrigeration agent entering described expansion gear from the 4th inner joint leaves expansion gear from described 4th external tapping; When heating, described first closed electromagnetic valve, the refrigeration agent entering described expansion gear from the 4th inner joint flow in described first connecting passage through the throttle orifice on the flow controller described 5th connecting passage, and flows out described expansion gear by the first inner joint.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047971.XA CN108397573B (en) | 2013-12-17 | 2013-12-17 | Air conditioning device and automobile air conditioner |
| CN201310694634.7A CN104712791B (en) | 2013-12-17 | 2013-12-17 | A kind of expansion gear, there is the expansion gear air-conditioning device and air conditioning for automobiles |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201310694634.7A CN104712791B (en) | 2013-12-17 | 2013-12-17 | A kind of expansion gear, there is the expansion gear air-conditioning device and air conditioning for automobiles |
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| CN201810047971.XA Division CN108397573B (en) | 2013-12-17 | 2013-12-17 | Air conditioning device and automobile air conditioner |
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| CN104712791B CN104712791B (en) | 2018-02-27 |
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| CN201310694634.7A Active CN104712791B (en) | 2013-12-17 | 2013-12-17 | A kind of expansion gear, there is the expansion gear air-conditioning device and air conditioning for automobiles |
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| CN108397573A (en) * | 2013-12-17 | 2018-08-14 | 浙江三花汽车零部件有限公司 | A kind of expansion device has the expansion device air-conditioning device and air conditioning for automobiles |
| WO2022083710A1 (en) * | 2020-10-22 | 2022-04-28 | 法雷奥汽车空调湖北有限公司动力总成热系统分公司 | Fluid guiding device, method of manufacturing fluid guiding device and thermal management assembly |
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| WO2022083710A1 (en) * | 2020-10-22 | 2022-04-28 | 法雷奥汽车空调湖北有限公司动力总成热系统分公司 | Fluid guiding device, method of manufacturing fluid guiding device and thermal management assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397573B (en) | 2020-04-28 |
| CN104712791B (en) | 2018-02-27 |
| CN108397573A (en) | 2018-08-14 |
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Effective date of registration: 20170509 Address after: 310018 No. 301, No. 12, Hangzhou economic and Technological Development Zone, Zhejiang Province Applicant after: Zhejiang Sanhua Automobile Components Co., Ltd. Address before: 310018 289-2, Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Applicant before: Hangzhou Sanhua Institute Co., Ltd. |
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