CN104235987B - Air conditioner system and vehicle comprising same - Google Patents
Air conditioner system and vehicle comprising same Download PDFInfo
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- CN104235987B CN104235987B CN201410520176.XA CN201410520176A CN104235987B CN 104235987 B CN104235987 B CN 104235987B CN 201410520176 A CN201410520176 A CN 201410520176A CN 104235987 B CN104235987 B CN 104235987B
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- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an air conditioner system and a vehicle comprising the same. The air conditioner system comprises a control unit, a compressor, a pressure servo controller, an air inlet pipeline, an air outlet pipeline, a condenser, an evaporator and a first pressure detection device. The pressure servo controller comprises a shell with a buffer space, a space changing component and an actuator. The actuator and the space changing component are connected to drive the space changing component to act to adjust the size of the buffer space. The actuator is connected with the control unit, and the inlet and the outlet of the buffer space are connected with the compressor and the condenser respectively. The evaporator is connected with the condenser and the compressor, and the first pressure detection device is used for detecting pressure of the exhaust port of the compressor and is connected with the control unit. According to the air conditioner system, exhaust pulses of the compressor are restrained, pressure stability and refrigerating capacity output stability of the system are improved, noise, abnormal sounds and the resonance phenomenon of the air conditioner system are restrained, the service lives of parts are prolonged, and refrigerant leakage amount is lowered.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to an air conditioning system and a vehicle with the same.
Background
The compressor is a heart part of an automobile air conditioning system, and the piston type compressor is most widely used and has the principle that a piston reciprocates in a cylinder, the volume of the cylinder is periodically increased or reduced, namely air suction or exhaust of the cylinder has certain frequency. In order to meet the requirements of different refrigerant flow rates, the range of the rotating speed of the compressor is large, the rotating speed is generally about 1000r/min-8000r/min, and the exhaust frequency is different when the rotating speed of the compressor is different.
At both the suction and discharge ends of the compressor, the compressor has a relatively high pressure on the discharge side, typically around 1.0-1.5Mpa, and a relatively low pressure on the suction side, typically around 0.2 Mpa. In practical applications, the periodic discharge of the compressor may cause vibration, so that the whole system is in an environment with a vibration source, and the frequency of the vibration has a wide variation range, and is usually high-frequency vibration. When the frequency of the vibration is close to the natural frequency of the component, resonance of the component is easily induced. The compressor has higher vibration frequency, higher energy and higher damage to parts, and high-frequency noise generated along with the damage is easy to cause complaints of passengers in the vehicle.
Among the materials disclosed in the related art, an expanding type reactive muffler is generally used in an automobile in order to suppress exhaust pulse vibration and noise of an air conditioning system. Reactive mufflers are usually installed at the compressor discharge pipe end, which primarily utilize its own internal space to dampen pressure fluctuations. The reactive muffler has a limitation in the elimination of the pulse frequency, and when the load of the air conditioning system increases and the pressure pulse changes excessively, the effect of suppressing the resonance and noise of the components by the muffler is to be improved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an air conditioning system which can effectively suppress exhaust pulse vibration and noise of the air conditioning system.
Another object of the present invention is to provide a vehicle having the above air conditioning system.
An air conditioning system according to an embodiment of the present invention includes: a control unit; a compressor having a discharge port and a suction port; the pressure follow-up controller comprises a shell, a space change component and a driver, a buffer space is defined in the shell, an air inlet and an air outlet which are communicated with the buffer space are formed in the shell, the space change component is arranged in the shell, the driver is connected with the space change component to drive the space change component to move so as to adjust the size of the buffer space, and the driver is connected with the control unit; the air inlet pipeline is connected with the air outlet; the condenser is connected with the other end of the air outlet pipeline, and two ends of the evaporator are respectively connected with the condenser and the air suction port; the first pressure detection device is used for detecting the pressure of the exhaust port of the compressor and is connected with the control unit, and the control unit controls the driver to drive the space change assembly to act according to the detection result of the first pressure detection device so as to adjust the size of the buffer space.
According to the air conditioning system provided by the embodiment of the invention, the first pressure detection device and the pressure follow-up controller are arranged, the pressure follow-up controller is provided with the buffer space for reducing the exhaust pressure of the compressor, the first pressure detection device is used for monitoring the exhaust pressure of the compressor in real time, and the pressure follow-up controller adjusts the size of the buffer space according to the detection value of the first pressure detection device, so that the exhaust pressure fluctuation of the compressor is inhibited, namely the exhaust pulsation of the compressor is inhibited, the pressure stability of the system is improved, and the output stability of the refrigerating capacity of the air conditioner is further improved. Meanwhile, the noise, abnormal sound and resonance phenomena of the air conditioning system are also inhibited, the service life of parts is prolonged, and the leakage of refrigerant caused by the loosening of the interface component is avoided.
In addition, the air conditioning system according to the present invention may also have the following additional technical features:
in some embodiments of the present invention, the air conditioning system further includes a second pressure detecting device for detecting the pressure at the air outlet of the pressure-following controller, the second pressure detecting device is connected to the control unit, and the control unit controls the driver to drive the space-changing assembly to act according to the detection result of the second pressure detecting device so as to adjust the size of the buffer space. Therefore, the second pressure detection device is matched with the first pressure detection device to realize random control and closed-loop control of the pressure follow-up controller, and closed-loop control of pressure fluctuation is formed, so that the reliability and the real-time performance of control are guaranteed, the control precision and the sensitivity of pressure control are improved, the pressure fluctuation of the compressor is further inhibited, and the pressure is kept smooth.
In some embodiments of the invention, the spatial variation assembly comprises: one end of the rotating shaft is connected with the driver so that the driver drives the rotating shaft to rotate; the fixed partition plate is fixed in the shell and defines a moving space with one open side with the shell; and at least one part of the movable partition plate is positioned in the fixed partition plate to seal the movable space, the movable partition plate is connected with the rotating shaft to drive the movable partition plate to rotate by the rotating shaft, the size of the buffer space is adjusted by controlling the size of the part of the movable partition plate extending out of the movable space, and the space in the movable partition plate is communicated with the buffer space through a pressure balance hole. Therefore, the pressure regulation capacity of the pressure follow-up controller is strong, and the pressure inside and outside the movable partition plate can be balanced by the arrangement of the pressure balance holes, so that the pressure of high-pressure gas borne by the movable partition plate during rotation is as small as possible, the motion load of the driver is reduced, and the adjustment of the buffer space is smoother.
Alternatively, the fixed diaphragm may be formed in a sector shape in cross section, and the movable diaphragm may be formed in a sector shape in cross section. Therefore, the movable partition plate can better seal the moving space when rotating.
Specifically, the other end of the rotating shaft penetrates through the movable partition plate and is rotatably arranged on the fixed partition plate. Thereby realize the location and the fixed of rotation axis, guarantee to remove the baffle and rotate steadily.
Further, a fixed space spaced apart from the buffering space is defined in the housing, and the driver is provided in the fixed space. Therefore, the sealing of the buffer space is facilitated, and the leakage of the refrigerant in the air conditioning system is avoided.
More specifically, the air conditioning system further includes a plastic fixing block cooperating with the driver to fix the driver within the fixing space. From this, made things convenient for the fixed of driver, and the plastics fixed block can regard as the bolster to spread in order to reduce the vibrations of driver to air conditioning system's vibration and noise have been reduced.
Optionally, the plastic fixing block is sleeved on the driver, a first protrusion matched with the driver is arranged on the inner wall of the plastic fixing block, a first groove is arranged on the outer wall of the plastic fixing block, and a second protrusion matched with the first groove is arranged on the inner wall of the fixing space. Therefore, the plastic fixing block and the driver are simple in structure, convenient to fix and easy to assemble.
Advantageously, the inner walls of the air suction pipeline and the air outlet pipeline are respectively provided with a flow guiding rib. Thereby guiding the refrigerant to flow and ensuring that the refrigerant gas smoothly flows into the buffer space and then smoothly flows out.
According to the embodiment of the invention, the vehicle comprises the air conditioning system. Therefore, the output stability of the air conditioner refrigerating capacity is improved, and the refrigerating stability of the vehicle is ensured. And the noise, abnormal sound and resonance phenomena of the vehicle are reduced, so that the comfort of the whole vehicle is improved. And the energy consumption of the air conditioning system is reduced, so that the oil consumption of the vehicle is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an air conditioning system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pressure servo controller according to a first embodiment of the invention;
FIG. 3 is a schematic structural diagram of a pressure servo controller and corresponding air inlet and outlet pipes according to a second embodiment of the present invention;
FIG. 4 is a schematic view, partly in section, taken along the line A-A in FIG. 3;
FIG. 5 is a schematic view, partly in section, taken along the direction B-B in FIG. 3;
fig. 6 is a schematic partial cross-sectional view taken along the direction C-C in fig. 3.
Reference numerals:
an air conditioning system 100, a frame 200, a positioning groove 201,
A compressor 1, an exhaust port a, an intake port b,
The pressure follow-up controller 2, the housing 21, the upper housing 211, the lower housing 212, the second projection 213,
A buffer space V1, an air inlet c, an air outlet d, a moving space V2, a fixed space V3,
A space changing unit 22, a movable partition 221, a fixed partition 222, a rotary shaft 223, a pressure balance hole e, a movable partition 224, a feed screw and nut mechanism 225,
The driver 23, the output shaft 231, the positioning leg 232, the second groove 233, the plastic fixing block 24, the first protrusion 241, the first groove 242, the bolt 25, the shock absorbing member 26,
A condenser 3, an evaporator 4, an air suction pipeline 5, an air outlet pipeline 6, a flow guide rib 56, a first pressure detection device 7, a second pressure detection device 8,
Refrigerant P1 with pressure fluctuation, and refrigerant P2 with pressure balance.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
An air conditioning system 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 6.
An air conditioning system 100 according to an embodiment of the present invention, as shown in fig. 1, includes: the system comprises a compressor 1, a pressure follow-up controller 2, a condenser 3, an evaporator 4, a suction pipeline 5, an air outlet pipeline 6, a first pressure detection device 7 and a control unit (not shown).
The pressure follow-up controller 2 comprises a shell 21, a space changing assembly 22 and a driver 23, a buffer space V1 is defined in the shell 21, an air inlet c and an air outlet d which are communicated with the buffer space V1 are arranged on the shell 21, the space changing assembly 22 is arranged in the shell 21, the driver 23 is connected with the space changing assembly 22 to drive the space changing assembly 22 to move so as to adjust the size of the buffer space V1, and the driver 23 is connected with a control unit.
Referring to fig. 1, the compressor 1 has an exhaust port a and a suction port b, and the suction pipe 5 is connected to the exhaust port a and the suction port c, respectively, i.e., the suction pipe 5 is connected between the compressor 1 and the pressure servo controller 2. One end of the air outlet pipeline 6 is connected with the air outlet d, the other end of the air outlet pipeline 6 is connected with the condenser 3, namely, the air outlet pipeline 6 is connected between the pressure follow-up controller 2 and the condenser 3, and two ends of the evaporator 4 are respectively connected with the condenser 3 and the air suction port b.
In the air conditioning system 100, the flow process of the refrigerant is as follows: refrigerant gas is compressed by the compressor 1 and then discharged from the air outlet a, the discharged refrigerant gas is introduced into the buffer space V1 of the pressure-following controller 2 through the air suction pipe 5, the refrigerant gas in the buffer space V1 flows from the air outlet d to the condenser 3 through the air outlet pipe 6, the refrigerant condenses and releases heat in the condenser 3 and flows to the evaporator 4, the refrigerant evaporates and absorbs heat in the evaporator 4, so that air passing through the evaporator 4 is cooled, and finally the refrigerant in the evaporator 4 flows back to the compressor 1 through the air suction port b. Thereby, the refrigerant completes the refrigeration cycle in the air conditioning system 100.
The first pressure detecting device 7 is used for detecting the pressure at the exhaust port a of the compressor 1, the first pressure detecting device 7 is connected with the control unit, and the control unit controls the driver 23 according to the detection result of the first pressure detecting device 7, so as to drive the space changing assembly 22 to act to adjust the size of the buffer space V1. That is, the first pressure detecting device 7 detects the discharge pressure value of the compressor 1, and then transmits the detection result to the control unit, and the control unit automatically determines and sends an instruction to the driver 23 of the pressure servo controller 2 according to the detection result, and the driver 23 drives the space changing assembly 22 to operate according to the instruction, so as to adjust the size of the buffer space V1.
Here, the refrigerant discharged after being compressed by the compressor 1 is a high-speed and high-pressure gaseous refrigerant, the refrigerant gas discharged by the compressor 1 sequentially flows into the buffer space V1 of the pressure follow-up controller 2 through the air suction pipe 5 and the air inlet c, and since the refrigerant gas enters the buffer space V1 through the narrow air suction pipe 5, the volume of the flow channel of the refrigerant gas is increased instantaneously, so that the pressure of the refrigerant gas is reduced, the kinetic energy of the refrigerant gas is correspondingly reduced, the speed is reduced, and the refrigerant gas after being decelerated is introduced into the condenser 3 through the air outlet pipe 6. Thus, the pressure servo controller 2 can reduce the discharge pressure of the compressor 1, reducing the discharge speed of the compressor 1.
When the load of the air conditioning system 100 increases and the rotating speed of the compressor 1 increases, the discharge pressure of the compressor 1 fluctuates to a large extent, and the first pressure detection device 7 in the system converts the discharge pressure fluctuation into an electric signal and then inputs the electric signal to the control unit. The driver 23 of the pressure-following controller 2 operates in accordance with a signal input from the control unit to actuate the space-varying assembly 22 to increase the volume of the buffer space V1. When the load of the air conditioning system 100 is reduced and the rotating speed of the compressor 1 is reduced, the control unit controls the space changing assembly 22 to act through the driver 23 so as to reduce the volume of the buffer space V1.
That is, by providing the first pressure detecting means 7 to cooperate with the control unit, the pressure servo controller 2, it is possible to increase the surge space V1 to increase the step-down amplitude when the discharge pressure of the compressor 1 is large, and to decrease the surge space V1 to decrease the step-down amplitude, on the contrary. And the real-time monitoring of the exhaust pressure of the compressor 1 is realized, and a pressure fluctuation follow-up system is established, so that the refrigeration requirements of users can be stably met anytime and anywhere.
Therefore, the pressure follow-up controller 2 capable of adjusting the volume of the buffer space V1 according to the exhaust pressure of the compressor 1 is arranged, so that the exhaust pressure value of the compressor 1 is stable, the exhaust pulsation generated by the compressor 1 is suppressed, the exhaust pulsation generated by the compressor 1 under severe working conditions can be particularly suppressed, the stability of the pressure in the system is improved, and the output stability of the air-conditioning refrigerating capacity is improved. The suppression of the pressure pulse of the air conditioning system 100 by the pressure servo controller 2 suppresses or even eliminates the noise, abnormal sound and resonance phenomena caused by the pulse. The resonance phenomenon in the air conditioning system 100 is relieved, the service life of parts is prolonged, and the looseness of an interface part caused by vibration is eliminated, so that the leakage of a refrigerant is reduced, the balance of fluorine elements in the atmosphere is kept, the ozone layer is protected, and the ecological balance is maintained.
Moreover, the pressure servo controller 2 adjusts the discharge pressure of the compressor 1 more widely and accurately and discharges the gas more smoothly than the reactive muffler in the conventional air conditioning system 100. Meanwhile, the pressure follow-up controller 2 is used for reducing pressure and noise, the flow loss of the air conditioning system 100 is reduced, and therefore energy consumption is reduced, and efficiency is improved.
It should be noted that the control unit may be any control device, and is not limited in particular, as long as the control unit can receive the detection result of the first pressure detection device 7 and control the driver 23 according to the detection result to control the action of the driving space changing assembly 22 to adjust the buffer space V1. Alternatively, the control unit may be a separate controller for controlling only the pressure-following controller 2, or the control unit may be a controller for controlling the overall operation of the air conditioning system 100, for example, in some examples of the invention, the air conditioning system 100 is used for a vehicle, and the control unit is a car air conditioner ECU. In addition, as shown in fig. 1, the first pressure detecting means 7 may be provided on the suction pipe 5, and the first pressure detecting means 7 may also be provided at the discharge port a of the compressor 1 or at the vicinity of the intake port c of the pressure servo controller 2, which is not particularly limited herein.
According to the air conditioning system 100 of the embodiment of the invention, the first pressure detection device 7 and the pressure follow-up controller 2 are arranged, the pressure follow-up controller 2 is provided with the buffer space V1 for reducing the exhaust pressure of the compressor 1, the first pressure detection device 7 is used for monitoring the exhaust pressure of the compressor 1 in real time, and the pressure follow-up controller 2 adjusts the size of the buffer space V1 according to the detection value of the first pressure detection device 7, so that the fluctuation of the exhaust pressure of the compressor 1 is inhibited, namely the exhaust pulsation of the compressor 1 is inhibited, the pressure stability of the system is improved, and the output stability of the cooling capacity of the air conditioner is improved. Meanwhile, the noise, abnormal sound and resonance phenomena of the air conditioning system 100 are also inhibited, the connection reliability of the parts is improved, the service life of the parts is prolonged, and the leakage of refrigerant caused by the loosening of the interface parts is avoided. And the pressure follow-up controller 2 has wide regulation range of the exhaust pressure of the compressor 1 and less flow loss, thereby reducing energy consumption and improving efficiency.
In some embodiments of the present invention, as shown in fig. 1, the air conditioning system 100 further includes a second pressure detecting device 8 for detecting the pressure at the air outlet d of the pressure following controller 2, the second pressure detecting device 8 is connected to the control unit, and the control unit controls the driver 23 to drive the space-changing assembly 22 to operate according to the detection result of the second pressure detecting device 8, so as to adjust the size of the buffer space V1.
That is, the first pressure detecting device 7 is used for detecting the gas pressure before the pressure servo controller 2 is adjusted, and the second pressure detecting device 8 is used for monitoring the gas pressure after the pressure servo controller 2 is adjusted in real time and feeding back the gas pressure in real time. The second pressure detection device 8 feeds back the detection result to the control unit, and the control unit calculates the detection result and then issues an instruction to the driver 23 so as to control the pressure servo controller 2 to make a corresponding action.
When the second pressure detection device 8 detects that the pressure of the refrigerant gas discharged from the gas outlet d is relatively stable, the second pressure detection device 8 does not operate. When the second pressure detecting device 8 detects the pressure fluctuation of the refrigerant gas discharged from the gas outlet d, the second pressure detecting device 8 transmits a fluctuation signal to the control unit to further adjust the size of the buffer space V1 so that the pressure of the refrigerant gas discharged from the gas outlet d is relatively stable.
Therefore, the second pressure detection device 8 is matched with the first pressure detection device 7 to realize random control and closed-loop control of the pressure follow-up controller 2, and closed-loop control of pressure fluctuation is formed, so that the reliability and the real-time performance of control are guaranteed, the control precision and the sensitivity of pressure control are improved, the pressure fluctuation of the compressor 1 is further inhibited, and the pressure is kept gentle.
Alternatively, as shown in fig. 1, the second pressure detecting device 8 may be provided on the air outlet pipe 6, and the second pressure detecting device 8 may be provided adjacent to the air outlet d of the pressure servo controller 2 or on the condenser 3, which is not particularly limited herein.
The structure of the pressure servo controller 2 according to the embodiment of the present invention will be described in detail below with reference to two specific embodiments shown in fig. 1 to 6. It should be noted that, in different embodiments, the same reference numerals refer to the same elements or elements having the same functions throughout.
Example one
In this embodiment, as shown in fig. 2, the space-changing assembly 22 includes a movable partition 224, the movable partition 224 is movably disposed in the housing 21, the movable partition 224 cooperates with the inner peripheral wall of the housing 21 to divide the inner cavity of the housing 21 into a buffer space V1 and a moving space V2, and the air inlet c and the air outlet d are communicated with the buffer space V1 for flowing the refrigerant. The suction pipe 5 is connected to the inlet c to flow the refrigerant P1 with pressure fluctuation, and the outlet pipe 6 is connected to the outlet d to flow the refrigerant P2 with pressure balance, where the refrigerant gas applied force F1 by the movable partition 224 is equal to the sum of the static pressure and the dynamic pressure.
The driver 23 is disposed in the moving space V2, and the driver 23 is a motor, the space changing assembly 22 further includes a lead screw nut mechanism 225, and an output shaft 231 of the motor is communicated with the movable partition 224 through the lead screw nut mechanism 225 to drive the movable partition 224 to move so as to change the size of the buffer space V1.
Example two
In this embodiment, as shown in fig. 3-6, the space-changing assembly 22 includes: a rotating shaft 223, a fixed partition 222, and a movable partition 221. One end of the rotating shaft 223 is connected to the driver 23 to drive the rotating shaft 223 to rotate by the driver 23, the fixed partition 222 is fixed in the housing 21 and defines a moving space V2 with one side open with the housing 21, at least a portion of the moving partition 221 is located in the fixed partition 222 to close the moving space V2, and the moving partition 221 is connected to the rotating shaft 223 to drive the moving partition 221 to rotate by the rotating shaft 223. Wherein the size of the buffer space V1 is adjusted by controlling the size of the portion of the moving partition 221 that protrudes out of the moving space V2, the space inside the moving partition 221 communicates with the buffer space V1 through the pressure equalizing hole e.
That is, the movable partition 221 and the fixed partition 222 are provided in the casing 21, and when the space occupied by the movable partition 221 and the fixed partition 222 increases, the space remaining in the buffer space V1 decreases, and the space for flowing the refrigerant decreases. When the space occupied by the movable partition 221 and the fixed partition 222 is reduced, the space remaining in the buffer space V1 is increased, and the space for the refrigerant to flow therethrough is increased. Here, a closed moving space V2 is defined between the moving partition 221 and the fixed partition 222, and the actuator 23 controls the rotation of the moving partition 221 through the rotation shaft 223, thereby adjusting the size of the moving space V2, and thus the volume of the space for the refrigerant to flow through in the buffer space V1. In the second embodiment, the refrigerant gas applying force F2 borne by the movable partition 221 is equal to the sum of the static pressure and the dynamic pressure of the refrigerant gas, and the bearing force F2 of the movable partition 221 is smaller than the bearing force F1 of the movable partition 224 in the first embodiment, so that the load of the driver 23 is smaller, and therefore, the pressure follow-up controller 2 in the second embodiment has stronger adjusting capability.
In the second embodiment, the housing 21 defines the fixed space V3 spaced apart from the buffer space V1, and the actuator 23 is disposed in the fixed space V3, so that the buffer space V1 is easily sealed to prevent the refrigerant in the air conditioning system 100 from leaking.
As shown in fig. 3 and 4 in particular, the housing 21 includes an upper housing 211 and a lower housing 212, the lower housing 212 is formed in a housing shape with an open bottom wall, a fixing space V3 is defined in the lower housing 212, and the driver 23 is provided in the lower housing 212. The upper case 211 is also formed in a shell shape with an open bottom wall, and the upper case 211 is provided on the lower case 212, that is, the top wall of the lower case 212 constitutes the bottom wall of the buffer space V1.
The upper case 211 is formed as a cylindrical shell, and a moving diaphragm 221 and a fixed diaphragm 222 are provided in the upper case 211. As shown in fig. 3 and 4, the fixed partition 222 is formed in a fan shape in cross section, and the movable partition 221 is formed in a fan shape in cross section, in which the arc-shaped side wall of the fixed partition 222 abuts against the inner peripheral wall of the upper case 211, and the movable partition 221 is disposed substantially coaxially with the fixed partition 222, whereby the movable partition 221 can seal the moving space V1 well when rotating.
The movable partition 221 is formed as a hollow shell, and since the space inside the movable partition 221 is communicated with the buffer space V1 through the pressure balance hole e, the gaseous refrigerant can fill the inner space of the movable partition 221, thereby balancing the pressure inside and outside the movable partition 221, so that the pressure of the high-pressure gas applied to the movable partition 221 when rotating is as small as possible, the motion load of the driver 23 is reduced, and the adjustment of the buffer space V1 is smoother.
In the second embodiment, the fixed partition 222 is welded to the upper housing 211, the air inlet c and the air outlet d are disposed on the upper housing 211, the air suction pipe 5 and the air outlet pipe 6 are welded and sealed with the upper housing 21, the upper housing 211 and the lower housing 212 are also welded and connected, and the rotating shaft 223 and the lower housing 21 are radially sealed by a double-lip seal, so as to ensure the sealing performance of the buffer space V1 and reduce the refrigerant leakage.
In the second embodiment, as shown in fig. 3, the inner walls of the air inlet duct 5 and the air outlet duct 6 are respectively provided with the flow guiding ribs 56 to guide the flow of the refrigerant, so as to ensure that the refrigerant gas smoothly flows into the buffer space V1 and then smoothly flows out. Alternatively, the diameter of the inner cavity of the air suction pipe 5 connected to one end of the housing 21 is gradually increased and the diameter of the inner cavity of the air outlet pipe 6 connected to one end of the housing 21 is also gradually increased in the direction toward the housing 21, that is, the ends of the air suction pipe 5 and the air outlet pipe 6 connected to the housing 21 are formed in a horn shape.
In addition, the air conditioning system 100 further includes a plastic fixing block 24, the plastic fixing block 24 is matched with the driver 23 to fix the driver 23 in the fixing space V3, so that the fixing of the driver 23 is facilitated, and the plastic fixing block 24 can serve as a buffer to reduce the vibration propagation of the driver 23, thereby reducing the vibration and noise of the air conditioning system 100.
Specifically, as shown in fig. 3, the plastic fixing block 24 is sleeved outside the driver 23, a first protrusion 241 is disposed on an inner wall of the plastic fixing block 24, a first groove 242 is disposed on an outer wall of the plastic fixing block 24, a second protrusion 213 that is engaged with the first groove 242 is disposed on an inner wall of the fixing space V3, the driver 23 is engaged with the first protrusion 241 for fixing, and a second groove 233 that is engaged with the first protrusion 241 is disposed on an outer peripheral wall of the driver 23. Therefore, the plastic fixing block 24 and the driver 23 have simple structures, are convenient to fix and are easy to assemble.
The first protrusions 241 are plural and arranged around the driver 23 to sandwich the driver 23 between the plural first protrusions 241. In the direction from the outside to the inside, the longitudinal sectional area of the first protrusions 241 is gradually reduced, that is, the first protrusions 241 are formed in the shape of barbs.
In the second embodiment, the other end of the rotating shaft 223 passes through the movable partition 221 and is rotatably disposed on the fixed partition 222, so as to position and fix the rotating shaft 223 and ensure the stable rotation of the movable partition 221. Specifically, the lower end of the rotating shaft 223 sequentially passes through the bottom wall of the movable partition 221, the bottom wall of the fixed partition 22 and the top wall of the lower housing 212 to be connected to the driver 23, the driver 23 is a motor, and the output shaft 231 of the motor is connected to the rotating shaft 223 through a spline. The upper end of the rotating shaft 223 is connected with the top wall of the movable partition 221 through a spline, a through hole is arranged on the top wall of the fixed partition 222, and the upper end of the rotating shaft 223 penetrates through the top wall of the movable partition 221 and then extends into the through hole.
In the second embodiment, the main assembly sequence of the pressure servo controller 2 is: the fixed barrier 222 is welded to the lower case 212, then the moving barrier 221 and the rotating shaft 223 are assembled to the fixed barrier 222, and then the upper case 221 is welded to the lower case 222, and then the plastic fixing block 24 and the actuator 23 are installed inside the lower case 212.
The vehicle according to the embodiment of the present invention includes the air conditioning system 100 according to the above-described embodiment of the present invention.
In the embodiment of the present invention, the pressure-following controller 2 of the air conditioning system 100 is installed on the frame 200, specifically, the lower housing 212 is fixed by the bolt 25, the frame 200 is further provided with a positioning slot 201, and the bottom wall of the driver 23 is provided with a positioning support 232 matching with the positioning slot 201.
More specifically, a shock absorbing member 26 is provided between the actuator 23 and the vehicle frame 200, and the shock absorbing member 26 is a rubber member. Alternatively, the shock absorbing member 26 is annular and oval in cross-section, with the shock absorbing member 26 being sleeved over the positioning leg 232.
According to the vehicle provided by the embodiment of the invention, by arranging the air conditioning system 100 provided by the embodiment of the invention, the exhaust pulsation of the compressor 1 is restrained, and the pressure stability of the system is improved, so that the output stability of the air conditioning refrigerating capacity is improved, and the refrigeration stability of the vehicle is ensured. And the noise, abnormal sound and resonance phenomena of the vehicle are reduced, so that the comfort of the whole vehicle is improved. And the air conditioning system 100 reduces power consumption, thereby reducing fuel consumption of the vehicle.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An air conditioning system, comprising:
a control unit;
a compressor having a discharge port and a suction port;
the pressure follow-up controller comprises a shell, a space change component and a driver, a buffer space is defined in the shell, an air inlet and an air outlet which are communicated with the buffer space are formed in the shell, the space change component is arranged in the shell, the driver is connected with the space change component to drive the space change component to move so as to adjust the size of the buffer space, and the driver is connected with the control unit;
the air inlet pipeline is connected with the air outlet;
the condenser is connected with the other end of the air outlet pipeline, and two ends of the evaporator are respectively connected with the condenser and the air suction port;
the first pressure detection device is used for detecting the pressure of the exhaust port of the compressor and is connected with the control unit, and the control unit controls the driver to drive the space change component to act according to the detection result of the first pressure detection device so as to adjust the size of the buffer space; wherein,
the space-changing assembly includes:
one end of the rotating shaft is connected with the driver so that the driver drives the rotating shaft to rotate;
the fixed partition plate is fixed in the shell and defines a moving space with one open side with the shell;
and at least one part of the movable partition plate is positioned in the fixed partition plate to seal the movable space, the movable partition plate is connected with the rotating shaft to drive the movable partition plate to rotate by the rotating shaft, the size of the buffer space is adjusted by controlling the size of the part of the movable partition plate extending out of the movable space, and the space in the movable partition plate is communicated with the buffer space through a pressure balance hole.
2. The air conditioning system as claimed in claim 1, further comprising a second pressure detecting device for detecting the pressure at the air outlet of the pressure-following controller, wherein the second pressure detecting device is connected to the control unit, and the control unit controls the driver to drive the space-changing assembly to operate to adjust the size of the buffer space according to the detection result of the second pressure detecting device.
3. The air conditioning system as claimed in claim 1, wherein the fixed barrier is formed in a sector shape in cross section, and the moving barrier is formed in a sector shape in cross section.
4. The air conditioning system as claimed in claim 1, wherein the other end of the rotation shaft is rotatably provided on the fixed partition through the moving partition.
5. The air conditioning system as claimed in claim 1, wherein a fixed space spaced apart from the buffering space is defined in the housing, and the driver is provided in the fixed space.
6. The air conditioning system as claimed in claim 5, further comprising a plastic fixing block cooperating with the driver to fix the driver in a fixing space.
7. The air conditioning system as claimed in claim 6, wherein the plastic fixing block is sleeved on the driver, a first protrusion engaged with the driver is provided on an inner wall of the plastic fixing block, a first groove is provided on an outer wall of the plastic fixing block, and a second protrusion engaged with the first groove is provided on an inner wall of the fixing space.
8. The air conditioning system of claim 1, wherein flow guiding ribs are respectively disposed on inner walls of the air suction pipe and the air outlet pipe.
9. A vehicle characterized by comprising an air conditioning system according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410520176.XA CN104235987B (en) | 2014-09-30 | 2014-09-30 | Air conditioner system and vehicle comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520176.XA CN104235987B (en) | 2014-09-30 | 2014-09-30 | Air conditioner system and vehicle comprising same |
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| CN104235987A CN104235987A (en) | 2014-12-24 |
| CN104235987B true CN104235987B (en) | 2017-02-15 |
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| CN201410520176.XA Active CN104235987B (en) | 2014-09-30 | 2014-09-30 | Air conditioner system and vehicle comprising same |
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| CN115200186A (en) * | 2022-06-24 | 2022-10-18 | 宁波奥克斯电气股份有限公司 | Air conditioner pipeline stress control method and device and air conditioner |
| CN115158186B (en) * | 2022-07-22 | 2024-03-22 | 重庆工商大学 | Car body based on data acquisition technology |
| CN117906299B (en) * | 2024-03-18 | 2024-06-07 | 江苏盖德冷冻机有限公司 | Water-cooling screw salt water unit with heat recovery function |
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| US5475189A (en) * | 1992-11-16 | 1995-12-12 | Carrier Corporation | Condition responsive muffler for refrigerant compressors |
| EP1158247A2 (en) * | 2000-05-26 | 2001-11-28 | ALSTOM Power N.V. | Apparatus to reduce acoustic vibrations in a combustion chamber |
| DE102008019488A1 (en) * | 2008-04-17 | 2009-10-22 | Behr Gmbh & Co. Kg | Fluiddruckpulsationsdämpfungsvorrichtung |
| EP2397760A1 (en) * | 2010-06-16 | 2011-12-21 | Alstom Technology Ltd | Damper Arrangement and Method for Designing Same |
| CN103696936A (en) * | 2013-12-10 | 2014-04-02 | 广州万宝集团压缩机有限公司 | Exhaust silencer of compressor |
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| US5283398A (en) * | 1989-12-26 | 1994-02-01 | Tsuchiya Mfg. Co., Ltd. | Resonator type silencer |
| US5475189A (en) * | 1992-11-16 | 1995-12-12 | Carrier Corporation | Condition responsive muffler for refrigerant compressors |
| EP1158247A2 (en) * | 2000-05-26 | 2001-11-28 | ALSTOM Power N.V. | Apparatus to reduce acoustic vibrations in a combustion chamber |
| DE102008019488A1 (en) * | 2008-04-17 | 2009-10-22 | Behr Gmbh & Co. Kg | Fluiddruckpulsationsdämpfungsvorrichtung |
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| CN104235987A (en) | 2014-12-24 |
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Effective date of registration: 20181221 Address after: 071000 Chaoyang North Street (Xu), Xushui District, Baoding, Hebei, 299 Patentee after: Mande Electronic Appliance Co., Ltd. Address before: No. 2266 Chaoyang South Street, Baoding City, Hebei Province, 071000 Patentee before: Changcheng Automobile Co., Ltd. |