CN206436775U - Using the automobile-used heat pump air conditioner of pressure sensor - Google Patents
Using the automobile-used heat pump air conditioner of pressure sensor Download PDFInfo
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- CN206436775U CN206436775U CN201720087751.0U CN201720087751U CN206436775U CN 206436775 U CN206436775 U CN 206436775U CN 201720087751 U CN201720087751 U CN 201720087751U CN 206436775 U CN206436775 U CN 206436775U
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- heat exchanger
- pressure sensor
- check valve
- valve
- connection
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Abstract
A kind of automobile-used heat pump air conditioner of use pressure sensor, including air supply compressor, air supply compressor is connected by four-way valve with car external heat exchanger, car external heat exchanger is connected by check valve with plate type heat exchanger, the other end of plate type heat exchanger is connected with main road electronic valve, the other end of main road electronic valve is connected with check valve, and check valve is connected with in-car heat exchanger, and in-car heat exchanger is connected by four-way valve with air supply compressor；The exhaust outlet and air inlet of air supply compressor are respectively equipped with one group of pressure sensor and matched temperature sensor, compared with prior art, air inlet and delivery temperature of the utility model with pressure sensor and temperature sensor cooperation to air supply compressor are monitored, refrigerant circulation is controlled according to monitoring result, realizes air-conditioning in the reliable and stable operation of high temperature extremely frigid zones；Pressure sensor can also real-time monitoring system pressure, situations such as whether system refrigerant leaks, whether system blocking occurs judged, is that the normal operation of system provides safeguard.
Description
Technical field
The utility model belongs to automobile-used heat pump air conditioner technical field, and in particular to a kind of automobile-used heat of use pressure sensor
Pump air-conditioning.
Background technology
Subsidy energetically and popularization with country to new energy car, the occupation rate of market of existing pure electric bus is increasingly
Height, because the fuel oil waste heat without traditional vehicle is available, winter can only heat by air-conditioner set or PTC to compartment, still
In extremely frigid zones, substantially not enough, PTC heat exchange efficiency lowly influences in the continuation of the journey of vehicle the heat capacity of common source pump
Journey.On the other hand, existing electronic valve controls to adjust cold medium flux using delivery temperature, occurs leaking or winter in system
It is improper due to matching in running, easily there is situations such as system return air band liquid, system frosting or even compressor liquid hammer, so that
The system of obtaining is not normally functioning.
Utility model content
The purpose of this utility model is to provide a kind of automobile-used heat pump air conditioner of use pressure sensor, can be in low temperature environment
Lower normal operation, using pressure sensor can real-time monitoring system operating pressure it is whether normal, can also utilize degree of superheat control
The refrigerant circulation of system processed so that control is more accurate, and energy-saving effect is more preferable.
The technical solution of the utility model is specially：
Using the automobile-used heat pump air conditioner of pressure sensor, including air supply compressor, the exhaust outlet and four-way of air supply compressor
The A mouths connection of valve, the B mouths of four-way valve are connected with car external heat exchanger, the outlet of the other end of car external heat exchanger respectively with check valve I
Connected with the import of check valve II, the outlet and the outlet of check valve III of the first passage of plate type heat exchanger respectively with check valve II
Connection, the other end of the first passage of plate type heat exchanger is connected with main road electronic valve, the other end of main road electronic valve respectively with list
To the import and the import connection of check valve IV of valve I, the outlet of check valve IV is connected with in-car heat exchanger, and in-car heat exchanger is another
End is connected with the C mouths of four-way valve, and the D mouths of four-way valve are connected with the air inlet of air supply compressor；One end difference of bypass electronic valve
The outlet of outlet and check valve III with check valve II is connected, the second channel connection of its other end and plate type heat exchanger, board-like
The other end of the second channel of heat exchanger and the gas supplementing opening of air supply compressor are connected；The exhaust outlet of air supply compressor is passed provided with pressure
Sensor I and the temperature sensor of matched effect I, the air inlet of air supply compressor are provided with pressure sensor II and matched
The temperature sensor II of effect.
The pipeline of the outlet of check valve II and the outlet of check valve III is provided with device for drying and filtering, with main road electronic valve import
Filter is equipped with the pipeline of connection and the pipeline of bypass electronic valve import connection.
In-car heat exchanger is connected with auxiliary ptc heater.
The pipeline that the D mouths of four-way valve are connected with air supply compressor air inlet is provided with gas-liquid separator.
Using the system control method of the automobile-used heat pump air conditioner of pressure sensor, its step is：
1. mode decision, if heating mode, enters the outer temperature detection of driving, if temperature<- 23 DEG C, then tonifying Qi pressure is not allowed
Contracting machine is opened, and return re-starts the outer temperature detection of car；If temperature >=-23 DEG C, temperature >=-5 DEG C are further judged, then main road electricity
Sub- valve is opened by predetermined aperture, and bypass electronic valve is closed；Judge the fault-free of pressure sensor II, provide the detection of pressure sensor II
Value, according to formula Δ t=t2-t1, point three kinds of situation discussion：One is Δ t<3 DEG C, then main road electronic valve lower 20 steps；Two be 3 DEG C≤
Δ t≤5 DEG C, then main road electronic valve do not adjust；Three be Δ t>5 DEG C, then 20 steps of main road electronic valve up-regulation, complete one and are circulated throughout
Journey；
2. the outer temperature detection of car, if temperature >=-23 DEG C, further judges temperature<- 5 DEG C, then pressure sensing is judged respectively
Device I and the fault-free of pressure sensor II, measure the detected value of pressure sensor I and the detected value of pressure sensor II, according to public affairs respectively
Formula Δ t=t2-t1, point three kinds of situation discussion：One is Δ t<3 DEG C, then main road electronic valve lower 20 steps；Two be 3 DEG C≤Δ t≤5 DEG C,
Then main road electronic valve is not adjusted；Three be Δ t>5 DEG C, then main road electronic valve raise 20 steps；Meanwhile, according to formula Δ t '=t4-t3, point
Three kinds of situation discussion：One is Δ t '<10 DEG C, then bypass electronic valve lower 20 steps；Two be 10 DEG C≤Δ t '≤25 DEG C, then bypass electricity
Sub- valve is not adjusted；Three be Δ t '>25 DEG C, then 20 steps of bypass electronic valve up-regulation, complete a cyclic process；
3. if refrigeration mode, then main road electronic valve is by the unlatching of predetermined aperture, and bypass electronic valve is closed；Judge that pressure is passed
The fault-free of sensor II, provides the detected value of pressure sensor II, according to formula Δ t=t2-t1, point three kinds of situation discussion：One is Δ t<3
DEG C, then main road electronic valve lowers 20 steps；Two be 3 DEG C≤Δ t≤5 DEG C, then main road electronic valve is not adjusted；Three be Δ t>5 DEG C, then lead
Road electronic valve raises 20 steps, completes a cyclic process；
In formula：t1For the corresponding saturation temperature of pressure sensor II；t2For intake air temperature；Δ t is that intake air temperature is passed with pressure
The temperature difference of the corresponding saturation temperature of sensor II；t3For the corresponding saturation temperature of pressure sensor I；t4For delivery temperature；Δ t ' is row
The temperature difference of temperature degree and the corresponding saturation temperature of pressure sensor I.
Compared with prior art, the utility model compresses with pressure sensor and temperature sensor mating reaction to tonifying Qi
The intake air temperature and delivery temperature of machine are monitored, so as to control refrigerant circulation according to monitoring result, tonifying Qi is compressed on demand
Machine carries out tonifying Qi, and air-conditioning products can be achieved in the reliable and stable operation of high temperature extremely frigid zones；In addition, pressure sensor can be supervised in real time
System pressure is controlled, situations such as whether system refrigerant leaks, whether system blocking occurs judged, guarantor is provided for the normal operation of system
Barrier.
Brief description of the drawings
Fig. 1 is operating diagram of the present utility model.
Fig. 2 is the utility model system control logic figure.
Embodiment
As shown in figure 1, using the automobile-used heat pump air conditioner of pressure sensor, including air supply compressor 1, air supply compressor 1
Exhaust outlet is connected with the A mouths of four-way valve 3, and the B mouths of four-way valve 3 are connected with car external heat exchanger 4, the other end point of car external heat exchanger 4
Be not connected with the outlet of check valve I 7 and the import of check valve II 13, the first passage of plate type heat exchanger 9 respectively with check valve II
13 outlet and the outlet connection of check valve III 14, the other end and the main road electronic valve 11 of the first passage of plate type heat exchanger 9 connect
Connect, the other end of main road electronic valve 11 is connected with the import of check valve I 7 and the import of check valve IV 15 respectively, check valve IV 15
Outlet be connected with in-car heat exchanger 5, the in-car other end of heat exchanger 5 is connected with C mouths of four-way valve 3, the D mouths and benefit of four-way valve 3
The air inlet connection of air compressor 1；One end of bypass electronic valve 12 respectively with the outlet of check valve II 13 and check valve III 14
Outlet connection, its other end is connected with the second channel of plate type heat exchanger 9, the other end of the second channel of plate type heat exchanger 9 and
The gas supplementing opening connection of air supply compressor 1；Temperature of the exhaust outlet of air supply compressor 1 provided with pressure sensor I and matched effect
Spend sensor I, temperature sensor II of the air inlet provided with pressure sensor II and matched effect of air supply compressor 1.This
Utility model is entered with pressure sensor and temperature sensor mating reaction to the intake air temperature and delivery temperature of air supply compressor 1
Row monitoring, so as to control refrigerant circulation according to monitoring result, carries out tonifying Qi to air supply compressor 1 on demand, and air-conditioning production can be achieved
Product are in the reliable and stable operation of high temperature extremely frigid zones；In addition, pressure sensor can real-time monitoring system pressure, judge system refrigerant
Whether leak, situations such as whether system blocking occurs, be that the normal operation of system provides safeguard.
The utility model realizes the heat exchange in refrigerant major loop and tonifying Qi loop using plate type heat exchanger 9；Within the system
The switching that four-way valve 3 realizes refrigerating/heating is provided with, building different refrigerants using check valve flows bridge, it is ensured that refrigerant exists
The uniformity flowed in plate type heat exchanger 9.
The pipeline of the outlet of check valve II 13 described in the utility model and the outlet of check valve III 14 is provided with dried
Filter is equipped with the pipeline of filter 8, the pipeline being connected with the import of main road electronic valve 11 and the import of bypass electronic valve 12 connection
10, it is ensured that the cleannes of system, prevent main road electronic valve 11 and bypass electronic valve 12 from blocking, it is ensured that system run all right is reliable.
In-car heat exchanger 5 described in the utility model is connected with auxiliary ptc heater 6, when main function is system defrost
Auxiliary heating either aids in heating, lifting vehicle comfortableness and CSAT when heating and bringing into operation.
The pipeline that the D mouths of four-way valve 3 are connected with the air inlet of air supply compressor 1 is provided with gas-liquid separator 2, it is ensured that enters and mends
The refrigerant state of air compressor 1 is gaseous state, ensures the normal operation of air supply compressor 1.
Operation principle of the present utility model is：
In refrigerative circle system, the high temperature and high pressure gas refrigerant that air supply compressor 1 is discharged enters outside car through four-way valve 3 to exchange heat
In device 4, the liquid refrigerants of HTHP is condensed into through car external heat exchanger 4, check valve II 13, device for drying and filtering 8 is flowed through, into plate
Formula heat exchanger 9, main road electronic valve 11 is entered by drier 10, then flows into in-car heat exchanger 5 through check valve IV 15, in the car
Heat absorption is evaporated to the gaseous coolant of low-temp low-pressure in heat exchanger 5, and air supply compressor 1 is entered through four-way valve 3 and gas-liquid separator 2
Air inlet, completes kind of refrigeration cycle.
Heat in cyclic process, the high temperature and high pressure gas refrigerant that air supply compressor 1 is discharged enters in-car through four-way valve 3 and changed
In hot device 5, the heat of refrigerant cooling release is blown into air channel to compartment heat in the presence of blower fan in the car, then through check valve III
14th, after device for drying and filtering 8, main road electronic valve 11 is entered by plate type heat exchanger 9 and drier 10, in the work of main road electronic valve 11
Entered with lower through check valve I 7 in car external heat exchanger 4, heat absorption is evaporated to the gaseous coolant of low-temp low-pressure in car external heat exchanger 4,
The air inlet of air supply compressor 1 is entered through four-way valve 3 and gas-liquid separator 2；Under psychro-environment, after device for drying and filtering 8, one
Fraction refrigerant enters plate type heat exchanger 9 through bypass expansion valve 12 with entering the tonifying Qi of air supply compressor 1 after the heat exchange of main road refrigerant
Mouthful, completion heats circulation.
Cold medium flux of the present utility model is controlled using the degree of superheat, and wherein main road electronic valve 11 uses suction superheat control
System, it is ensured that the air inlet of air supply compressor 1 is overheat gaseous coolant entirely；Bypass electronic valve 12 is controlled using discharge superheat, control
Exhaust temperature ranges of the air supply compressor 1 under worst cold case, it is ensured that the normal operation of compressor, the system control method is as schemed
Shown in 2, its step is：
1. mode decision, if heating mode, enters the outer temperature detection of driving, if temperature<- 23 DEG C, then tonifying Qi pressure is not allowed
Contracting machine 1 is opened, and return re-starts the outer temperature detection of car；If temperature >=-23 DEG C, temperature >=-5 DEG C are further judged, then main road
Electronic valve 11 is opened by predetermined aperture, and bypass electronic valve 12 is closed；Judge the fault-free of pressure sensor II, provide pressure sensor
II detected value, according to formula Δ t=t2-t1, point three kinds of situation discussion：One is Δ t<3 DEG C, then main road electronic valve 11 lower 20 steps；
Two be 3 DEG C≤Δ t≤5 DEG C, then main road electronic valve 11 is not adjusted；Three be Δ t>5 DEG C, then 20 steps of the up-regulation of main road electronic valve 11, complete
Into a cyclic process；
2. the outer temperature detection of car, if temperature >=-23 DEG C, further judges temperature<- 5 DEG C, then pressure sensing is judged respectively
Device I and the fault-free of pressure sensor II, measure the detected value of pressure sensor I and the detected value of pressure sensor II, according to public affairs respectively
Formula Δ t=t2-t1, point three kinds of situation discussion：One is Δ t<3 DEG C, then main road electronic valve 11 lower 20 steps；Two be 3 DEG C≤Δ t≤5
DEG C, then main road electronic valve 11 is not adjusted；Three be Δ t>5 DEG C, then main road electronic valve 11 raise 20 steps；Meanwhile, according to formula Δ t '=
t4-t3, point three kinds of situation discussion：One is Δ t '<10 DEG C, then bypass electronic valve 12 lower 20 steps；Two be 10 DEG C≤Δ t '≤25
DEG C, then bypass electronic valve 12 is not adjusted；Three be Δ t '>25 DEG C, then 20 steps of the up-regulation of bypass electronic valve 12, complete one and are circulated throughout
Journey；
3. if refrigeration mode, then main road electronic valve 11 is by the unlatching of predetermined aperture, and bypass electronic valve 12 is closed；Judge pressure
The fault-free of force snesor II, provides the detected value of pressure sensor II, according to formula Δ t=t2-t1, point three kinds of situation discussion：One is
Δt<3 DEG C, then main road electronic valve 11 lower 20 steps；Two be 3 DEG C≤Δ t≤5 DEG C, then main road electronic valve 11 is not adjusted；Three be Δ t
>5 DEG C, then 20 steps of the up-regulation of main road electronic valve 11, complete a cyclic process；
In formula：t1For the corresponding saturation temperature of pressure sensor II；t2For intake air temperature；Δ t is that intake air temperature is passed with pressure
The temperature difference of the corresponding saturation temperature of sensor II；t3For the corresponding saturation temperature of pressure sensor I；t4For delivery temperature；Δ t ' is row
The temperature difference of temperature degree and the corresponding saturation temperature of pressure sensor I.
By such a control logic, the accurate control of electronic valve and the optimum cycle of system cold medium flux are realized.
Another effect of pressure sensor be exactly can real-time monitoring system pressure, judge whether system refrigerant leaks,
Situations such as whether series blocking occurs, is that the normal operation of system provides safeguard；Further, it is also possible in after-sales service, be easy to
Check, the system failure is found out rapidly, safeguarded for later product and provide convenient.
Claims (4)
1. a kind of automobile-used heat pump air conditioner of use pressure sensor, including air supply compressor（1）, air supply compressor（1）Exhaust
Mouth and four-way valve（3）A mouths connection, four-way valve（3）B mouths and car external heat exchanger（4）Connection, car external heat exchanger（4）It is another
End respectively with check valve I（7）Outlet and check valve II（13）Import connection, plate type heat exchanger（9）First passage difference
With check valve II（13）Outlet and check valve III（14）Outlet connection, plate type heat exchanger（9）First passage the other end
With main road electronic valve（11）Connection, main road electronic valve（11）The other end respectively with check valve I（7）Import and check valve IV
（15）Import connection, check valve IV（15）Outlet and in-car heat exchanger（5）Connection, in-car heat exchanger（5）The other end and four
Port valve（3）C mouths connection, four-way valve（3）D mouths and air supply compressor（1）Air inlet connection；Bypass electronic valve（12）One
End respectively with check valve II（13）Outlet and check valve III（14）Outlet connection, its other end and plate type heat exchanger（9）'s
Second channel is connected, plate type heat exchanger（9）Second channel the other end and air supply compressor（1）Gas supplementing opening connection；It is special
Levy and be, the air supply compressor（1）Temperature sensor I of the exhaust outlet provided with pressure sensor I and matched effect, mend
Air compressor（1）Temperature sensor II of the air inlet provided with pressure sensor II and matched effect.
2. as claimed in claim 1 using the automobile-used heat pump air conditioner of pressure sensor, it is characterised in that the check valve II
（13）Outlet and check valve III（14）Outlet pipeline be provided with device for drying and filtering（8）, with main road electronic valve（11）Import
The pipeline and bypass electronic valve of connection（12）Filter is equipped with the pipeline of import connection（10）.
3. as claimed in claim 1 using the automobile-used heat pump air conditioner of pressure sensor, it is characterised in that the in-car heat exchanger
（5）With auxiliary ptc heater（6）Connection.
4. as claimed in claim 1 using the automobile-used heat pump air conditioner of pressure sensor, it is characterised in that the four-way valve（3）
D mouths and air supply compressor（1）The pipeline of air inlet connection is provided with gas-liquid separator（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720087751.0U CN206436775U (en) | 2017-01-23 | 2017-01-23 | Using the automobile-used heat pump air conditioner of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720087751.0U CN206436775U (en) | 2017-01-23 | 2017-01-23 | Using the automobile-used heat pump air conditioner of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206436775U true CN206436775U (en) | 2017-08-25 |
Family
ID=59636589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720087751.0U Withdrawn - After Issue CN206436775U (en) | 2017-01-23 | 2017-01-23 | Using the automobile-used heat pump air conditioner of pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206436775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422027A (en) * | 2020-03-25 | 2020-07-17 | 安徽沃博源科技有限公司 | Vehicle thermal management system and control method thereof |
| CN114274729A (en) * | 2021-12-16 | 2022-04-05 | 东风汽车集团股份有限公司 | CO2Control method of heat pump system |
-
2017
- 2017-01-23 CN CN201720087751.0U patent/CN206436775U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422027A (en) * | 2020-03-25 | 2020-07-17 | 安徽沃博源科技有限公司 | Vehicle thermal management system and control method thereof |
| CN111422027B (en) * | 2020-03-25 | 2022-06-17 | 安徽沃博源科技有限公司 | Vehicle thermal management system and control method thereof |
| CN114274729A (en) * | 2021-12-16 | 2022-04-05 | 东风汽车集团股份有限公司 | CO2Control method of heat pump system |
| CN114274729B (en) * | 2021-12-16 | 2023-09-05 | 东风汽车集团股份有限公司 | CO 2 Control method of heat pump system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20230418 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20230418 |