CN108397573B - Air conditioning device and automobile air conditioner - Google Patents
Air conditioning device and automobile air conditioner Download PDFInfo
- Publication number
- CN108397573B CN108397573B CN201810047971.XA CN201810047971A CN108397573B CN 108397573 B CN108397573 B CN 108397573B CN 201810047971 A CN201810047971 A CN 201810047971A CN 108397573 B CN108397573 B CN 108397573B
- Authority
- CN
- China
- Prior art keywords
- air
- heat exchanger
- port
- air duct
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- 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, which is characterized in that on the basis of a traditional automobile air conditioner box, a heat exchanger for placing and utilizing the waste heat of an engine of the traditional automobile is replaced by a condenser in a heat pump system, an expansion device is arranged at the connecting part of an inlet and outlet connecting pipe of the traditional automobile air conditioner box, four connecting holes of the expansion device are respectively communicated with the inlets and outlets of two heat exchangers in the air conditioner box, the other four connecting holes of the expansion device form a new inlet and outlet which are communicated with other parts of the air conditioner system to form the air conditioner system, the expansion device has the functions of throttling and a connector, and the expansion device can meet the requirements of two types of throttling, so that a refrigerant pipeline connected to the air conditioner box by the air conditioner system is more compact, and the cost of the air conditioner can be reduced by transforming on the basis of the existing.
Description
The application is a divisional application of patent application with the patent application number of 201310694634.7 and the patent application date of 2013, 12 and 17, and the invention is named as 'an expansion device, an air conditioner with the expansion device and an automobile air conditioner'.
Technical Field
The invention relates to the field of automobile air conditioners.
Background
Along with the development of low-carbon economy, more strict requirements on energy conservation and emission reduction are provided, new energy automobiles are taken as the strategic direction of automobile industrial development in all countries in the world, and electric automobiles or hybrid electric automobiles become one of the automobile development directions in the future due to the characteristics of energy conservation and environmental protection. However, the cost and capacity/weight of the electric vehicle limit the development of new energy vehicles because the electric vehicle uses a battery as a power source and a battery as a core component; the air conditioning system is also different from the original automobile air conditioning system: in a traditional internal combustion engine type automobile, an engine drives a belt pulley compressor to refrigerate, and on the other hand, waste heat of an internal combustion engine and heat of exhaust gas of the engine are used for heating a compartment; electric vehicles use electric compressors for cooling, but lack the heat available from conventional internal combustion engines. In order to provide heat for an air conditioning system of an electric vehicle, a technology commonly used at present is to drive a PTC heater by using electric energy, and heat generated by the PTC heater is used for heating a passenger compartment.
Since the PTC heater consumes a large amount of electric energy, the driving range of the electric vehicle is reduced, and the heating efficiency of the electric heater is less than 1, there is a certain energy loss, and in addition, the electric vehicle cannot heat the vehicle compartment by using the waste heat of the internal combustion engine and the heat of the exhaust gas of the engine as in the conventional vehicle. Therefore, the air conditioning box of the traditional automobile cannot be directly transferred to the electric automobile, a new air conditioning box needs to be redesigned to be suitable for the air conditioning system of the electric automobile, and the cost of the electric automobile can be increased.
Therefore, how to provide an air conditioning device which can meet the requirement of an air conditioning system of an electric automobile by utilizing an air conditioning box of a traditional automobile without redesigning a new air conditioning box becomes a technical problem which needs to be solved urgently by technicians.
Disclosure of Invention
In order to overcome the defect that an air conditioning box needs to be redesigned in the prior art and achieve the purpose of reducing cost, the invention provides the air conditioning device for the automobile air conditioner, which not only can be driven by an electric compressor to refrigerate, but also can be used for heating a passenger compartment by using heat pump circulation to provide heat, and the energy efficiency ratio of the heat pump circulation to provide heat is greatly improved compared with that of a PTC heater.
The invention also provides an air conditioning device, which comprises an air conditioning box and an expansion device, wherein the expansion device comprises a valve assembly and a coil, the valve assembly comprises a valve body and a valve core, the valve body comprises a first inner interface, a second inner interface, a third inner interface and a fourth inner interface which are positioned on one side surface, the valve body also comprises a first outer interface, a second outer interface, a third outer interface and a fourth outer interface which are positioned on the other opposite side surface, a first connecting channel for connecting the first inner interface and the first outer interface, a second connecting channel for connecting the second inner interface and the second outer interface, a third connecting channel for connecting the third inner interface and the third outer interface, a fourth connecting channel for connecting the fourth inner interface and the fourth outer interface and a fifth connecting channel are formed in the valve body, a throttling port is formed in the first connecting channel, the valve core can control the flow of fluid through the throttling port, the fifth connecting channel is communicated with the fourth connecting channel and the first connecting channel, a throttling device with at least one through throttling hole is arranged in the fifth connecting channel, and the throttling hole is communicated with the fourth connecting channel and the first connecting channel. Expansion device sets up on the air-conditioning box, the air-conditioning box includes air-conditioning box shell and sets up first heat exchanger, second heat exchanger, air-blower, temperature air door, circulation air door and the air supply air door in the air-conditioning box shell, the inside of air-conditioning box shell is formed with wind channel, air intake and the supply-air outlet that supplies the air flow, each internal interface on the expansion device respectively through the pipeline with exit intercommunication on first heat exchanger and the second heat exchanger.
Preferably, the air-conditioning cabinet further comprises a bracket for mounting the expansion device, one side of the bracket facing the outside of the air-conditioning cabinet is a flat table surface, the bracket is provided with at least two openings penetrating through the bracket, a connecting pipe connected with the first heat exchanger is positioned at the bottom of the opening on the bracket and penetrates through the opening to be clamped on the bracket, and a connecting pipe connected with the second heat exchanger is positioned at the opening end side of the opening on the bracket and penetrates through the opening to be clamped on the bracket; the opening on the bracket is a U-shaped opening, at least two pressing plates are arranged between the bracket and the expansion device, two bayonets with mutually vertical opening directions are arranged on the pressing plates, and connecting pipes for connecting the expansion device with the first heat exchanger and the second heat exchanger are clamped in the bayonets; the expansion device is fixed on the pressure plate through bolts, and the pressure plate is abutted to the support.
Preferably, a third opening is formed in the outer wall of the air conditioner shell at a position close to the position for accommodating the second heat exchanger, and the second heat exchanger extends into the air conditioner shell through the third opening and is detachably fixed on the air conditioner shell through at least one of a buckle and a screw.
Optionally, the air conditioning cabinet further includes an auxiliary heater disposed on a downstream side of the second heat exchanger, the auxiliary heater is an electric heater, and the first heat exchanger and the second heat exchanger are microchannel heat exchangers.
Preferably, the low reaches of first heat exchanger are provided with first wind channel mouth and second wind channel mouth, first wind channel mouth and second wind channel mouth divide into two the tunnel with the wind channel, and one way is passed through second wind channel mouth and second heat exchanger place wind channel intercommunication, another way is passed through first wind channel mouth is walked around the second heat exchanger, the temperature air door sets up wind channel between first heat exchanger and the second heat exchanger, the temperature air door can rotate between first wind channel mouth and the second wind channel mouth.
Preferably, the air supply air door comprises a first air supply air door and a second air supply air door, the air supply port comprises a first air supply port, a second air supply port and a third air supply port, a third air duct port is arranged in an air duct close to the first air supply port, a sixth air duct port is arranged in an air duct close to the second air supply port, a fifth air duct port is arranged at a position close to the third air supply port and adjacent to the sixth air duct port, and a fourth air duct port is arranged at a position between the third air duct port and the fifth air duct port as well as between the third air duct port and the sixth air duct port; the first air supply air door is arranged between the third air duct opening and the fourth air duct opening, the second air supply air door is arranged between the fifth air duct opening and the sixth air duct opening, the first air supply air door can rotate between the third air duct opening and the fourth air duct opening, and the second air supply air door can rotate between the fifth air duct opening and the sixth air duct opening.
The invention also provides an automobile air conditioner which comprises the air conditioner device, and the automobile air conditioner also comprises a compressor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a gas-liquid separator, an outdoor heat exchanger, a one-way valve and an expansion valve, wherein the outlet of the compressor is communicated with a third external port on the expansion device through a pipeline, a fourth external port is communicated with the first electromagnetic valve through a pipeline, the compressor is divided into two paths after coming out of the first electromagnetic valve, one path is communicated with the expansion valve, and the other path is communicated with the inlet of the outdoor heat exchanger; the refrigerant is divided into two paths after coming out of the outdoor heat exchanger, one path is communicated with the first external interface of the expansion device through the one-way valve, and the other path is communicated with the inlet of the compressor through the second electromagnetic valve and the gas-liquid separator; and the refrigerant is divided into two paths after coming out of the expansion valve, one path is communicated with a second interface of the expansion device through a pipeline, and the other path is communicated with an inlet of the compressor through the third electromagnetic valve and the gas-liquid separator.
Preferably, the vehicle air conditioner includes a cooling function and a heating function, and when cooling is performed, the first solenoid valve is opened, and the refrigerant entering the expansion device from the fourth inner port exits the expansion device from the fourth outer port; in heating, the first solenoid valve is closed, and the refrigerant entering the expansion device from the fourth internal port flows into the first connecting passage through the orifice on the restrictor in the fifth connecting passage, and flows out of the expansion device through the first internal port.
The expansion device on the air conditioning device has the functions of throttling and connecting, and can meet the requirements of two types of throttling, so that a refrigerant pipeline of an air conditioning system connected to an air conditioning box is more compact, the expansion device can be obtained by modifying the existing air conditioning box shell of the automobile air conditioner, and the cost of the air conditioning device can be reduced.
Drawings
FIG. 1 is a schematic view of the construction of the air conditioning apparatus of the present invention;
FIG. 2 is a schematic diagram of the components of the air conditioning unit of FIG. 1;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the air conditioning unit of FIG. 1;
FIG. 5 is a schematic perspective view of an expansion device of the air conditioning apparatus of FIG. 1;
FIG. 6 is a schematic perspective view of another perspective of the expansion device of FIG. 5;
FIG. 7 is a schematic front view of an expansion device;
FIG. 8 is a schematic sectional view A-A of FIG. 7;
FIG. 9 is a schematic cross-sectional view B-B of FIG. 7;
FIG. 10 is a schematic partial cross-sectional view of FIG. 7;
fig. 11 is a schematic structural view of an air conditioner for a vehicle having the air conditioner of the present invention.
Detailed Description
The air conditioning device of the invention is based on the traditional automobile air conditioning box, the heat exchanger for placing and utilizing the waste heat of the engine of the traditional automobile is replaced by the condenser in the heat pump system, the expansion device is arranged at the connecting part of the inlet and outlet connecting pipes of the traditional automobile air conditioning box, four connecting holes of the expansion device are respectively communicated with the inlet and outlet of the two heat exchangers in the air conditioning box, and the other four connecting holes of the expansion device form a new inlet and outlet which is communicated with other parts of the air conditioning system to form the air conditioning system.
The following describes an air conditioning unit for an automobile air conditioner according to the present invention with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural view of an air conditioner of the present invention, fig. 2 is a schematic composition view of the air conditioner of fig. 1, fig. 3 is a partially enlarged view of fig. 2, and fig. 4 is a schematic sectional view of the air conditioner of fig. 1, wherein fig. 2 is a cut-away partial outer shell for clarity of the composition of the air conditioner of the present invention.
As shown in fig. 1 to 4, the air conditioner 10 of the present invention includes an air conditioning cabinet 100 and an expansion device 110 disposed on the air conditioning cabinet, the air conditioning cabinet 100 includes a first heat exchanger 101, a second heat exchanger 102, an auxiliary heater 103, a blower 104, a temperature damper 105, a circulation damper 106, a supply damper 109, and an air conditioning cabinet 111 for accommodating the first heat exchanger 101, the second heat exchanger 102, the auxiliary heater 103, the blower 104, the temperature damper 105, the circulation damper 106, and the supply damper 109, wherein the first heat exchanger and the second heat exchanger are microchannel heat exchangers, and the auxiliary heater is an electric heater. The air-conditioning case 111 is provided with an inner circulation air opening 107, an outer circulation air opening 108, an air supply opening and a bracket 119 for fixing the expansion device 110, and air enters the air-conditioning case 100 from the inner circulation air opening 107 and the outer circulation air opening 108 and flows out of the air-conditioning case 100 from the air supply opening.
An air duct for air to flow is further formed in the air-conditioning case 111, the blower 104 is arranged at the downstream of the air duct close to the inner circulation air opening 107 and the outer circulation air opening 108 along the flowing direction of air in the air duct, air enters the air-conditioning case 111 from the inner circulation air opening 107 and/or the outer circulation air opening 108, the pressure of the air is raised by the blower 104 to become an air flow A, the air can flow in the air duct in the air-conditioning case, and the air flow A flows to the first heat exchanger at the downstream of the blower 104.
The first heat exchanger 101 is arranged at the downstream of the blower 104, a first air duct opening 1051 and a second air duct opening 1052 are arranged at the downstream of the first heat exchanger 101, the second heat exchanger 102 is arranged at the downstream of the second air duct opening 1052, the first air duct opening 1051 and the second air duct opening 1052 divide the air duct into two paths, one path is communicated with the air duct where the second heat exchanger 102 is arranged through the second air duct opening 1052, and the other path bypasses the second heat exchanger 102 through the first air duct opening 1051. A temperature damper 105 for adjusting the amount and direction of air flow is further provided in the air duct between the first heat exchanger 101 and the second heat exchanger 102, and the temperature damper 105 is rotatable between the first air duct opening 1051 and the second air duct opening 1052. The auxiliary heater is disposed downstream near the second heat exchanger 102.
When passing through the first heat exchanger 101, the air flow a exchanges heat with the heat exchange medium in the first heat exchanger 101, and becomes an air flow B after exchanging heat with the heat exchange medium in the first heat exchanger 101. At this time, the temperature damper 105 provided between the first heat exchanger 101 and the second heat exchanger 102 controls the flow of the air stream B, and the temperature damper 105 may control the flow of the air stream B as follows:
1. the temperature damper 105 controls the air flow B to flow to the second heat exchanger 102, and at this time, the temperature damper 105 closes the first air duct opening 1051;
2. the temperature damper 105 controls the air flow B to be totally prevented from flowing to the second heat exchanger 102, and the temperature damper 105 closes the second air duct port 1052 at the moment;
3. the temperature damper controls a portion of the air flow B to the second heat exchanger 102 and a portion of the air flow to the first heat exchanger 101, with the temperature damper 105 located between the first air passage opening 1051 and the second air passage opening 1052.
When the air flow B flows to the second heat exchanger 102 through the second air duct 1052, when the air flow B passes through the second heat exchanger 102, the air flow B exchanges heat with the heat exchange medium in the second heat exchanger 102 to absorb heat of the heat exchange medium, and the air flow B becomes the air flow C after being heated by the second heat exchanger 102. If the auxiliary heater 103 is turned on, the air flow C is further heated by the auxiliary heater, and the temperature of the air flow C is further increased. The air flow C is then mixed with the air flow B passing through the first air duct opening 1051 to become an air flow D.
An air supply damper 109 is arranged at the position, close to the air supply port, of the downstream of the air flow channel, the air supply damper 109 comprises a first air supply damper 109a and a second air supply damper 109b, and the air supply port comprises a first air supply port 109c, a second air supply port 109d and a third air supply port 109 f. A third air duct opening 1053 is provided in the air duct near the first air supply opening 109c, a sixth air duct opening 1056 is provided in the air duct near the second air supply opening 109d, a fifth air duct opening 1055 is provided at a position near the third air supply opening 109f and adjacent to the sixth air duct opening 1056, and a fourth air duct opening 1054 is provided between the third air duct opening 1053 and the fifth and sixth air duct openings 1055 and 1056. The first air supply damper 109a is provided between the third air duct opening 1053 and the fourth air duct opening 1054, and the second air supply damper 109b is provided between the fifth air duct opening 1055 and the sixth air duct opening 1056. The first supply air damper 109a is rotatable between the third air duct opening 1053 and the fourth air duct opening 1054, and the second supply air damper 109b is rotatable between the fifth air duct opening 1055 and the sixth air duct opening 1056.
The flow distribution of the combined air stream D when passing through the third air duct opening 1053 and the fourth air duct opening 1054 can be controlled by the first air supply damper 109a, and the flow distribution of the air stream D when passing through the fifth air duct opening 1055 and the sixth air duct opening 1056 can be controlled by the second air supply damper 109 b. First and second supply air dampers 109a and 109b control air flow in the same or similar manner as temperature damper 105 controls air flow as described above and will not be described in detail herein.
The air flow D is adjusted by the supply damper to flow out of the air-conditioning casing 111 from the supply port, and specifically, depending on the positions of the first supply damper 109a and the second supply damper 109b, the air flow D may flow out of the air-conditioning casing 111 from at least one of the first supply port 109c, the second supply port 109D, and the third supply port 109 f. In this embodiment, supply damper 109 distributes the volume of air flow D to the passenger compartment, 109c is a face supply outlet, 109D is a front windshield supply outlet, and 109f is a foot supply outlet. By adjusting the blower damper 109a, the total of the face blowing air volume passing through 109c and the front windshield blowing air volume passing through 109d + the foot blowing air volume passing through 109e can be distributed, and by adjusting the blower damper 109b, the front windshield blowing air volume passing through 109d and the foot blowing air volume passing through 109e can be distributed.
As shown in fig. 4, the first heat exchanger 101 and the second heat exchanger 102 are both disposed in the air-conditioning case 111, wherein a third opening 1021 is disposed on the outer wall of the air-conditioning case 111 near the position for accommodating the second heat exchanger 102, and the second heat exchanger 102 can extend into the air-conditioning case 111 through the third opening 1021 and be detachably fixed on the air-conditioning case 111 by means of a buckle, a screw, and the like. Similarly, the auxiliary heater 103 may be secured to the air conditioning cabinet 111 in the same manner.
It should be noted here that the auxiliary heater 103 may not be provided in the air conditioning box, and in the present embodiment, the auxiliary heater 103 is provided downstream of the second heat exchanger 102, so that the temperature of the air flow can be better controlled by the auxiliary heater 103, and the temperature control of the air conditioning system is more accurate.
The lateral wall of air-conditioning cabinet 111 is formed with platform-shaped support 119, and support 119 has the platform face towards air-conditioning cabinet 111 outside one side, has seted up two at least U type openings that run through support 119 on support 119, is first opening 1191 and second opening 1192 respectively. The first inlet pipe 101a, the first outlet pipe 101b, the second inlet pipe 102a, and the second outlet pipe 102b connecting the inlets and outlets of the first heat exchanger 101 and the second heat exchanger 102 pass through the first opening 1191 and the second opening 1192. The first inlet pipe 101a and the first outlet pipe 101b are respectively positioned at the bottoms of the first opening 1191 and the second opening 1192, and the second inlet pipe 102a and the second outlet pipe 102b are close to the open ends of the first opening 1191 and the second opening 1192. In this embodiment, the first inlet tube 101a and the second outlet tube 102b pass through the second opening 1192 with a certain distance therebetween, and the first outlet tube 101b and the second inlet tube 102a pass through the first opening 1191 with a certain distance therebetween.
Thus, the second inlet pipe 102a and the second outlet pipe 102b are arranged at the opening end of the U-shaped opening, so that the second heat exchanger 102 and the second inlet pipe 102a and the second outlet pipe 102b which are connected with the inlet and the outlet of the second heat exchanger 102 can be detachably fixed on the air-conditioning case shell 111, when the air-conditioning case shell is installed, the second heat exchanger 102 is inserted into the air-conditioning case shell 111 through the third opening 1021, and the second inlet pipe 102a and the second outlet pipe 102b are clamped in the first opening 1191 and the second opening 1192; when removed, the second heat exchanger 102 exits the air conditioning cabinet 111 through the third opening 1021, and simultaneously, the second inlet pipe 102a and the second outlet pipe 102b exit the first opening 1191 and the second opening 1192. Can realize dismouting at any time of second heat exchanger 102 like this, make things convenient for the maintenance of air-conditioning box 100 and the change of second heat exchanger 102, also can improve the utilization of air-conditioning box simultaneously, when this air-conditioning box is used in traditional car, then change the second heat exchanger for being applicable to traditional car air conditioner heat exchanger, when this air-conditioning box is applicable to electric automobile, then the second heat exchanger is for being applicable to electric automobile air conditioner heat exchanger, can realize the air-conditioning box and be applicable to multiple air conditioning system's needs like this, can greatly reduced vehicle air conditioner's cost.
The pressing plate 117 is clamped on the first inlet pipe 101a and the first outlet pipe 101b, the pressing plate 117 is fixedly mounted on the platform surface of the support 119, specifically, two bayonets with the same or opposite opening directions can be formed in the pressing plate 117, or two bayonets with mutually perpendicular opening directions can be formed in the pressing plate 117, in this embodiment, two bayonets with mutually perpendicular opening directions are formed in the pressing plate 117, and the arrangement mode can improve the stability among the first inlet pipe 101a, the first outlet pipe 101b and the pressing plate 117. Similarly, a pressure plate 117 is snap-fitted to second inlet tube 102a and second outlet tube 102 b.
As shown in fig. 1 and 2, the expansion device 110 can be fixed on the pressing plate 117 by bolts, specifically, the expansion device 110 is provided with a plurality of connecting holes 116, two pressing plates 117 are also provided with a plurality of threaded holes 117a corresponding to the connecting holes 116, the bolts 118 pass through the connecting holes 116 and are screwed in the threaded holes 117a, and the expansion device is connected with connecting pipes of each heat exchanger, and each connecting pipe is clamped and connected with a U-shaped opening on the bracket, so that the expansion device and the bracket are abutted with each other, and the expansion device 110 and the pressing plates are fixed on the air-conditioning cabinet shell 111.
As shown in fig. 5 to 10, the expansion device 110 includes a valve assembly and a coil 1102, wherein the valve assembly includes a valve body 1101 and a valve core, one part of the valve core extends into the valve body 1101 (not shown in the figures), and the other part is sleeved with the coil 1102.
The valve body 1101 includes a first inner interface 111A, a second inner interface 111B, a third inner interface 112A, a fourth inner interface 112B on one side surface, and further includes a first outer interface 111A, a second outer interface 111B, a third outer interface 112A, a fourth outer interface 112B on the other side surface, and a first connection passage for connecting the first inner interface 111A and the first outer interface 111A is formed in the valve body 1101
11011. A second connection channel 11012 connecting the second inner interface 111B and the second outer interface 111B, a third connection channel 11013 connecting the third inner interface 112A and the third outer interface 112A, a fourth connection channel 11014 connecting the fourth inner interface 112B and the fourth outer interface 112B, and a fifth connection channel 113.
An orifice (not shown) is formed in the first connection passage 11011, so that a certain height difference exists between the first inner joint 111A and the first outer joint 111A to form the orifice, that is, the first connection passage 11011 is divided into two sections, one section is communicated with the first inner joint 111A, the other section is communicated with the first outer joint 111A, and the two sections are communicated with each other through the orifice. The valve needle in the valve core (shown in the figure) can adjust the size of the throttling opening to control the flow of the refrigerant, so that the first connecting channel 11011 can be completely opened and closed, and the flow of the refrigerant can be stopped when the first connecting channel is completely closed.
The second connection channel 11012, the third connection channel 11013 and the fourth connection channel 11014 are straight type channels.
The fifth connecting passage 113 connects the fourth connecting passage 11014 and a section of the first connecting passage 11011 communicating with the first outer port 111A, the fifth connecting passage 113 includes a first connecting cavity 1131 and a second connecting cavity 1133 which are coaxial, both the first connecting cavity 1131 and the second connecting cavity 1133 have internal threads therein, and the inner diameter of the first connecting cavity 1131 is smaller than that of the second connecting cavity 1133. The first connecting cavity 1131 communicates with the first outer interface 111A, and the second connecting cavity 1133 communicates with the second inner interface 112B and the second outer interface 112B.
The expansion device 110 further includes a restrictor 114 disposed in the fifth connecting passage 113, an external thread corresponding to the internal thread of the first connecting chamber 1131 is disposed on an outer circumferential side of the restrictor 114, the restrictor 114 is fixedly mounted in the first connecting chamber 1131 of the fifth connecting passage 113 by the engagement of the external thread on the outer circumferential side with the internal thread of the first connecting chamber 1131, and a seal ring may be disposed on the outer circumferential side of the restrictor 114 in order to improve the sealing performance of the restrictor 114. Specifically, the restrictor 114 is located in a portion of the fifth connecting passage 113 between the first external interface 111A and the fourth external interface 112B. The throttle device 114 is provided in the middle with at least one axial throttle opening, through which the first connecting space 1131 and the second connecting space 1133 can be connected. Thus, the first external interface 111A is connected to the fourth external interface 112B and the fourth internal interface 112B through the first connection cavity 1131, the restrictor 114, and the second connection cavity 1133, and when fluid cannot flow between the fourth external interface 112B and the fourth internal interface 112B, the fluid can pass through the restrictor 114.
According to the invention, the fifth connecting channel is arranged on the valve body, and the throttler is arranged in the fifth connecting channel, so that the two throttling devices are integrated into one, the expansion device has two throttling functions, and the expansion device has the beneficial effects of compact pipeline connection, small occupied space, low cost and the like.
A seal terminal 115 is further provided at the port of the fifth connection passage 113, and an external thread and a seal ring are provided on the outer peripheral side of the seal terminal 115, and the seal terminal 115 seals the port to prevent the heat exchange medium from flowing out of the expansion device.
It should be noted here that in the present embodiment, the restrictor 114 and the hermetic terminal 115 do not interfere with the first connection passage 11011 and the fourth connection passage 11014 when installed in the fifth connection passage 113, which can prevent an excessive pressure drop when the heat exchange medium flows in the fourth connection passage 11014.
The first inner port 111a may be connected to a first inlet pipe 101a of the first heat exchanger, the second inner port 111b may be connected to a first outlet pipe 101b of the first heat exchanger, the third inner port 112a may be connected to a second inlet pipe 102a of the second heat exchanger 102, and the fourth inner port 112b may be connected to a second outlet pipe 102b of the second heat exchanger 102. In this way, the heat exchange medium can flow from the external connection through the expansion device 110 and the connection pipes into the respective heat exchanger and then out of the other external connection through the connection pipes and the expansion device. Here, the heat exchange medium flowing in through the first external port 111A is a refrigerant, and the refrigerant is throttled and depressurized while passing through the orifice in the first connection passage 11011.
The operation of the air conditioner 10 will be described in detail with reference to an air conditioner for a vehicle.
Fig. 11 is a schematic structural view of a vehicle air conditioner having an air conditioner, which may be applied to an electric vehicle. As shown in the figure, the outlet of the compressor 1 is communicated with the third external port 112A of the expansion device 110 through a pipeline, the fourth external port 112B is communicated with the first electromagnetic valve 41 through a pipeline, and is divided into two paths after coming out of the first electromagnetic valve 41, one path is communicated with the expansion valve 5, and the other path is communicated with the inlet of the outdoor heat exchanger 3. The refrigerant is also divided into two paths after coming out of the outdoor heat exchanger 3, one path is communicated with a first external interface 111A of the expansion device 110 through the check valve 6, and the other path is communicated with the inlet of the compressor 1 through the second electromagnetic valve 42 and the gas-liquid separator 2. The refrigerant is also divided into two paths after coming out of the expansion valve 5, one path is communicated with the second interface 111B of the expansion device 110 through a pipeline, and the other path is communicated with the inlet of the compressor 1 through the third electromagnetic valve 43 and the gas-liquid separator 2.
The automobile air conditioner comprises a cooling mode and a heating mode.
A refrigeration mode:
the first solenoid valve 41 and the third solenoid valve 43 are opened, the second solenoid valve 42 is closed, and the expansion valve 5 is closed. The compressor 1 compresses the refrigerant to a high-pressure high-temperature gaseous refrigerant, and sends the compressed refrigerant to the third external port 112A, and the refrigerant passes through the second heat exchanger 102 and exits from the port 112B. The refrigerant enters the outdoor heat exchanger 3 through the first electromagnetic valve 41, the high-pressure and high-temperature refrigerant radiates heat outwards in the outdoor heat exchanger 3, the outdoor air carries the heat away, and the refrigerant coming out of the outlet of the outdoor heat exchanger 3 is cooled and condensed into a high-pressure liquid state. The refrigerant from the outlet of the outdoor heat exchanger 3 enters the air-conditioning box 100 through the check valve 6 from the first external port 111A, passes through the expansion device 110 and the first heat exchanger 101, exchanges heat with the air flow a through the first heat exchanger 101, absorbs heat in the air flow a, and then leaves the air-conditioning box 100 through the first external port 111B. The refrigerant is introduced into the gas-liquid separator 2 through the third solenoid valve 43, and if the refrigerant has a liquid phase component, the refrigerant is separated in the gas-liquid separator 2, the liquid phase refrigerant remains in the gas-liquid separator, and the gas phase refrigerant returns to the inlet of the compressor 1 and is compressed to a high-pressure high-temperature gas state by the compressor 1, thus completing one cycle.
The temperature damper 105 and the second heat exchanger 102 may have different operating states depending on the temperature of the air flow B. When the temperature of the air flow B has reached the comfort level, the temperature damper 105 completely closes the second air passage 1052, and the air flow B bypasses the second heat exchanger 102 and the auxiliary heater 103 and is delivered directly from the supply damper 109 to the passenger compartment. When the temperature of the air flow B is too low, the temperature damper 105 is located between the first air passage 1051 and the second air passage 1052, so that part of the air is heated and then sent to the passenger compartment through the supply damper 109.
At this time, the refrigerant enters the second connecting chamber 1133 through the fourth inner port 112B, and almost all of the refrigerant flows out of the expansion device from the fourth outer port 112B because the flow resistance of the restrictor 114 is large.
Heating mode:
the second solenoid valve 42 is opened, the first solenoid valve 41 and the third solenoid valve 43 are closed, and the expansion valve 5 is opened. At this time, the first connection passage 11011 is fully opened by adjusting the valve element in the expansion device 10 so that the orifice opening degree in the first connection passage 11011 is the maximum. The compressor 1 compresses the refrigerant to a high-pressure and high-temperature gas refrigerant, and sends the gas refrigerant to the third external port 112A of the air conditioning box, the refrigerant passing through the second heat exchanger 102 is cooled and condensed to a high-pressure liquid state, and the fourth external port 112B of the air conditioning box is blocked by the first electromagnetic valve 41, and only the gas refrigerant can flow through the throttle hole in the throttle 114, and the pressure is reduced. Since the check valve 6 is reversely closed, the refrigerant can pass through only the orifice in the first connection passage 11011 of the expansion device 110, the pressure decreases again, the temperature decreases, the refrigerant enters the first heat exchanger 101 in a gas-liquid two-phase state at medium pressure and medium temperature, the temperature of the refrigerant is still higher than that of the air flow a, the refrigerant releases heat to the air flow a through the first heat exchanger 101, the air flow a is heated to the air flow B, and the refrigerant exits from the second external connection port 111B. Then, the pressure refrigerant enters the expansion valve 5, and the pressure is greatly reduced to become a low-pressure low-temperature gas-liquid two-phase state, and enters the outdoor heat exchanger 3. This low-pressure low-temperature refrigerant absorbs heat from the outdoor air in the outdoor heat exchanger 3, and the refrigerant that has come out of the outlet of the outdoor heat exchanger 3 is heated and gasified into a low-pressure gaseous state, and enters the gas-liquid separator 2 through the second electromagnetic valve 42. If the refrigerant still has a liquid phase component, the refrigerant is separated in the gas-liquid separator 2, the liquid phase refrigerant remains in the gas-liquid separator, and the gas phase refrigerant returns to the inlet of the compressor 1 and is compressed to a high-pressure high-temperature gas state by the compressor 1, thus completing a cycle.
At this time, the temperature damper 105 completely closes the first air passage opening 1051, so that the temperature of the air flow B is further raised to meet the comfort requirement. The auxiliary heater 103 may be selectively operated or not operated depending on the overall application of the air conditioning system. If the ambient temperature is not abnormally low or rapid temperature rise is not required, the comfort requirement can be met after the second heat exchanger 102 is heated, and the auxiliary heater 103 can be selected not to work. If the ambient temperature is abnormally low or rapid temperature rise is required, the auxiliary heater 103 may be selected to operate, which may further increase the heating capacity of the system and increase the heating speed.
The air flow C having passed through the second heat exchanger 102 and the auxiliary heater 103 has reached the comfort level and is sent into the passenger compartment through the supply damper 109.
Among the first heat exchanger 101, the second heat exchanger 102, and the auxiliary heater 103, the second heat exchanger 102, the first heat exchanger 101, and the auxiliary heater 103, which are mainly used for heating, should be turned on preferentially, and the order should be the same.
It can be seen from the cooling mode and the heating mode that the expansion device 110 has the functions of blocking and communicating the first heat exchanger 101 and the second heat exchanger 102, so that the expansion device has the functions of throttling and connecting, and the expansion device 110 can meet the requirements of two types of throttling, so that the refrigerant pipeline of the air conditioning system connected to the air conditioning box is more compact.
It should be noted here that the air conditioning box may also be applied to other automotive air conditioners in which the refrigerant flows out from the fourth outer joint when the fluid refrigerant entering the expansion device from the fourth inner joint can flow out from the fourth outer joint, and flows into the first connecting passage from the orifice on the restrictor in the fifth connecting passage and flows out of the expansion device through the first inner joint when the refrigerant cannot flow out from the fourth outer joint, and the specific flow may be specifically set according to the automotive air conditioner.
In addition, when the air conditioning device is applied to a traditional automobile air conditioner, only the throttler on the expansion device needs to be replaced by a component without a throttling hole, at the moment, the first external interface and the second external interface are connected with the refrigerating system, and the third external interface and the fourth external interface are connected with the engine waste heat utilization system.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can now make numerous changes and modifications to the disclosed embodiments, and equivalents thereof, without departing from the scope of the invention as set forth in the claims below. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (8)
1. An air conditioning device comprises an air conditioning box and is characterized by further comprising an expansion device, wherein the expansion device comprises a valve assembly and a coil, the valve assembly comprises a valve body and a valve core, the valve body comprises a first inner interface, a second inner interface, a third inner interface and a fourth inner interface which are positioned on one side surface, the valve body further comprises a first outer interface, a second outer interface, a third outer interface and a fourth outer interface which are positioned on the other opposite side surface, a first connecting channel for connecting the first inner interface and the first outer interface, a second connecting channel for connecting the second inner interface and the second outer interface, a third connecting channel for connecting the third inner interface and the third outer interface, a fourth connecting channel for connecting the fourth inner interface and the fourth outer interface and a fifth connecting channel are formed in the valve body, a throttling port is formed in the first connecting channel, the valve core can control the flow of fluid through the throttling port, the fifth connecting channel is communicated with the fourth connecting channel and the first connecting channel, a throttling device with at least one through throttling hole is arranged in the fifth connecting channel, and the throttling hole is communicated with the fourth connecting channel and the first connecting channel;
expansion device sets up on the air-conditioning box, the air-conditioning box includes air-conditioning box shell and sets up first heat exchanger, second heat exchanger, air-blower, temperature air door, circulation air door and the air supply air door in the air-conditioning box shell, the inside of air-conditioning box shell is formed with wind channel, air intake and the supply-air outlet that supplies the air flow, each internal interface on the expansion device respectively through the pipeline with exit intercommunication on first heat exchanger and the second heat exchanger.
2. An air conditioning apparatus according to claim 1, wherein said first connecting passage is divided into two sections, one section communicating with said first inner port and the other section communicating with said first outer port, the two sections communicating with each other through said orifice hole, said fifth connecting passage communicating with a section of said first connecting passage communicating with said first outer port, said fifth connecting passage including a first connecting chamber communicating with said first outer port and a second connecting chamber communicating with a fourth connecting passage, said restrictor being fixedly installed in said first connecting chamber; and a sealing terminal is further arranged on a port of the fifth connecting channel, and the restrictor and the sealing terminal do not interfere with the first connecting channel and the fourth connecting channel when being installed in the fifth connecting channel.
3. The air conditioning device as claimed in claim 1, wherein a third opening is opened on the outer wall of the air conditioning cabinet near the position for accommodating the second heat exchanger, and the second heat exchanger extends into the air conditioning cabinet through the third opening and is detachably fixed on the air conditioning cabinet through at least one of a buckle and a screw.
4. The air conditioning unit according to claim 3, wherein the air conditioning cabinet further comprises an auxiliary heater provided on a downstream side of the second heat exchanger, the auxiliary heater is an electric heater, and the first and second heat exchangers are microchannel heat exchangers.
5. An air conditioning apparatus according to claim 4, wherein a first air duct opening and a second air duct opening are provided downstream of the first heat exchanger, the first air duct opening and the second air duct opening divide the air duct into two paths, one path communicates with the air duct in which the second heat exchanger is located through the second air duct opening, the other path bypasses the second heat exchanger through the first air duct opening, the temperature damper is provided in the air duct between the first heat exchanger and the second heat exchanger, and the temperature damper is rotatable between the first air duct opening and the second air duct opening.
6. The air conditioning apparatus according to claim 4, wherein the air supply damper includes a first air supply damper and a second air supply damper, the air supply ports include a first air supply port, a second air supply port, and a third air supply port, a third air duct port is provided in the air duct near the first air supply port, a sixth air duct port is provided in the air duct near the second air supply port, a fifth air duct port is provided at a position near the third air supply port and adjacent to the sixth air duct port, and a fourth air duct port is provided at a position between the third air duct port and the fifth air duct port, the sixth air duct port; the first air supply air door is arranged between the third air duct opening and the fourth air duct opening, the second air supply air door is arranged between the fifth air duct opening and the sixth air duct opening, the first air supply air door can rotate between the third air duct opening and the fourth air duct opening, and the second air supply air door can rotate between the fifth air duct opening and the sixth air duct opening.
7. An automobile air conditioner, characterized in that, the automobile air conditioner comprises the air conditioner of any one of claims 1 to 6, the automobile air conditioner further comprises a compressor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a gas-liquid separator, an outdoor heat exchanger, a one-way valve and an expansion valve, wherein an outlet of the compressor is communicated with a third external interface on the expansion device through a pipeline, a fourth external interface is communicated with the first electromagnetic valve through a pipeline, the fourth external interface is divided into two paths after coming out of the first electromagnetic valve, one path is communicated with the expansion valve, and the other path is communicated with an inlet of the outdoor heat exchanger; the refrigerant is divided into two paths after coming out of the outdoor heat exchanger, one path is communicated with the first external interface of the expansion device through the one-way valve, and the other path is communicated with the inlet of the compressor through the second electromagnetic valve and the gas-liquid separator; and the refrigerant is divided into two paths after coming out of the expansion valve, one path is communicated with a second interface of the expansion device through a pipeline, and the other path is communicated with an inlet of the compressor through the third electromagnetic valve and the gas-liquid separator.
8. The vehicle air conditioner according to claim 7, wherein the vehicle air conditioner includes a cooling and heating function, and when cooling, the first solenoid valve is opened, and the refrigerant entering the expansion device from the fourth inner port exits the expansion device from the fourth outer port; in heating, the first solenoid valve is closed, and the refrigerant entering the expansion device from the fourth inner port flows into the first connecting passage through the orifice on the restrictor in the fifth connecting passage, and flows out of the expansion device through the first inner port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047971.XA CN108397573B (en) | 2013-12-17 | 2013-12-17 | Air conditioning device and automobile air conditioner |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| CN201810047971.XA CN108397573B (en) | 2013-12-17 | 2013-12-17 | Air conditioning device and automobile air conditioner |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310694634.7A Division 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397573A CN108397573A (en) | 2018-08-14 |
| CN108397573B true CN108397573B (en) | 2020-04-28 |
Family
ID=53412380
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810047971.XA Active CN108397573B (en) | 2013-12-17 | 2013-12-17 | Air conditioning device and automobile air conditioner |
| 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 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108397573B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397573B (en) * | 2013-12-17 | 2020-04-28 | 浙江三花汽车零部件有限公司 | Air conditioning device and automobile air conditioner |
| CN114379312A (en) * | 2020-10-22 | 2022-04-22 | 法雷奥汽车空调湖北有限公司动力总成热***分公司 | Fluid guiding device, method of manufacturing a fluid guiding device and thermal management assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749622A (en) * | 2004-08-06 | 2006-03-22 | 马克阀门公司 | Rapid response solenoid for electromagnetic operated valve |
| CN101101064A (en) * | 2006-07-07 | 2008-01-09 | 浙江三花制冷集团有限公司 | Thermal expansion valve |
| CN101726139A (en) * | 2008-10-17 | 2010-06-09 | 浙江三花汽车控制***有限公司 | Thermostatic expansion valve |
| CN102538316A (en) * | 2011-12-04 | 2012-07-04 | 浙江三花汽车零部件股份有限公司 | Thermal expansion valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7434597B2 (en) * | 2006-02-17 | 2008-10-14 | Emerson Electric Co. | Thermostatic expansion valve with check valve |
| KR20110108026A (en) * | 2010-03-26 | 2011-10-05 | 학교법인 두원학원 | Expansion valve for an air-conditioner of a vehicle |
| CN108397573B (en) * | 2013-12-17 | 2020-04-28 | 浙江三花汽车零部件有限公司 | Air conditioning device and automobile air conditioner |
-
2013
- 2013-12-17 CN CN201810047971.XA patent/CN108397573B/en active Active
- 2013-12-17 CN CN201310694634.7A patent/CN104712791B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749622A (en) * | 2004-08-06 | 2006-03-22 | 马克阀门公司 | Rapid response solenoid for electromagnetic operated valve |
| CN101101064A (en) * | 2006-07-07 | 2008-01-09 | 浙江三花制冷集团有限公司 | Thermal expansion valve |
| CN101726139A (en) * | 2008-10-17 | 2010-06-09 | 浙江三花汽车控制***有限公司 | Thermostatic expansion valve |
| CN102538316A (en) * | 2011-12-04 | 2012-07-04 | 浙江三花汽车零部件股份有限公司 | Thermal expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108397573A (en) | 2018-08-14 |
| CN104712791A (en) | 2015-06-17 |
| CN104712791B (en) | 2018-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9751378B2 (en) | Air conditioning system and heat exchanger | |
| CN101403553B (en) | Evaporator unit | |
| EP3800076B1 (en) | Thermal management system | |
| WO2017193857A1 (en) | Heat pump air-conditioning system and electric vehicle | |
| EP3453990A1 (en) | Heat pump air-conditioning system and electric vehicle | |
| TWI646288B (en) | Heat exchanger and air-condition system | |
| EP4296549A1 (en) | Integrated valve group module and vehicle having same | |
| WO2014189112A1 (en) | Duplex heat exchanger | |
| US10843528B2 (en) | Heat pump air-conditioning system and electric vehicle | |
| JP2013148229A (en) | Gas-liquid separator and air conditioning device for vehicle | |
| CN108116186B (en) | Automobile heat management system and electric automobile | |
| CN109974318B (en) | Thermal management system | |
| CN108397573B (en) | Air conditioning device and automobile air conditioner | |
| CN107356002B (en) | Heat pump air conditioning system and electric car | |
| EP4309926A1 (en) | Valve group integration module, thermal management system and vehicle | |
| CN113173047B (en) | Thermal management system | |
| AU2022284987A1 (en) | Valve group integrated module, vehicle thermal management system, and vehicle | |
| JP2007518624A (en) | Air conditioner | |
| CN108116190B (en) | Automobile heat management system and electric automobile | |
| CN108116187B (en) | Automobile heat management system and electric automobile | |
| CN218519495U (en) | CO 2 Heat pump air conditioning system and vehicle | |
| CN217574789U (en) | CO 2 Heat pump air conditioning system and vehicle | |
| CN115111790B (en) | Fluid management device and thermal management system | |
| KR102158505B1 (en) | Air conditioner for vehicle | |
| US20240017588A1 (en) | Valve set integrated module, vehicle thermal management system, and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |