CN206765754U - A kind of back-positioned type bus air-conditioning refrigeration device - Google Patents
A kind of back-positioned type bus air-conditioning refrigeration device Download PDFInfo
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- CN206765754U CN206765754U CN201720575835.9U CN201720575835U CN206765754U CN 206765754 U CN206765754 U CN 206765754U CN 201720575835 U CN201720575835 U CN 201720575835U CN 206765754 U CN206765754 U CN 206765754U
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Abstract
The utility model discloses a kind of back-positioned type bus air-conditioning refrigeration device, and it includes evaporation section and condensation portion, is separately positioned on the top and the bottom of described device；The condensation portion includes condenser core assembly and condensation fan, and condenser core assembly includes the parallel flow condenser core body being vertically arranged, and the condensation fan is arranged on the side of condenser core assembly；Return air inlet is set in the front side of evaporation section, First Transition air channel is set in the left and right sides of evaporation section, the left and right sides sets the second transition air channel at the top of evaporation section；Evaporation fan is provided between above First Transition air channel and below the second transition air channel, the evaporation fan coordinates with evaporator core, and evaporator core is arranged between evaporation fan and return air inlet；The lower floor's air outlet for being arranged on evaporation section left and right ends is connected to lower deck compartment by the 3rd transition air channel, and the upper strata air outlet for being arranged on the left and right sides at the top of evaporation section is connected to imperial by the 4th transition air channel.
Description
Technical field
Coach air conditioner technical field is the utility model is related to, is a kind of back-positioned type bus air-conditioning refrigeration device specifically.
Background technology
Most of condenser of double-deck bus coach air conditioner unit uses tube-fin condenser core body in the market.It is logical
Often, the high-temperature high-pressure refrigerant that condenser core is passed through first with condensation fan is exchanged heat, and passes through expansion valve section
Stream device freezes to realize, is then detached the hot-air in passenger car to evaporator room using centrifugal blower, passed through simultaneously
Pipe type evaporator core is cooled down, then is returned in passenger car, so as to realize the cold and hot exchange of passenger car air.
However, there is problems with existing tube-fin condenser：1) core body volume is bigger, thus increases condenser
The installing space of room, it is unfavorable for the space utilization of car；2) tube-fin condenser uses copper pipe aluminum fin, thus adds section of jurisdiction
The weight of formula condenser；3) tube-fin condenser core body uses copper pipe overcoat aluminum fin-stock, and is combined by tube；Work as visitor
After the car traveling long period, tube junction easily loosens so that the heat exchange efficiency of tube-fin condenser core body reduces；4) manage
The core pipe caliber of chip type condenser device core body is typically relatively more to the refrigerant between 10mm, thus needing to fill in 7mm；5) manage
The air resistance coefficient of chip type condenser is bigger, and the heat exchange efficiency of condenser is general.
Therefore, a kind of new bus air-conditioning refrigeration device need to be provided.
Utility model content
The purpose of this utility model is, there is provided a kind of back-positioned type bus air-conditioning refrigeration device, it can increase condenser
The heat exchange efficiency of room, chiller core body weight is reduced, system coolant injection amount is reduced, so as to reduce the weight of air conditioner device for coach
Amount, and resource consumption is reduced, to reach energy-saving purpose.
To achieve the above object, the utility model uses following technical scheme.
The utility model provides a kind of back-positioned type bus air-conditioning refrigeration device, and described device is arranged on vehicle tail engine
Top, described device includes an evaporation section and a condensation portion, and the evaporation section is arranged on the top of described device, institute
State the bottom that condensation portion is arranged on described device；The condensation portion includes two groups of condenser core assemblies and multiple condensating winds
Machine, condenser core assembly described in each group include the parallel flow condenser core body being vertically arranged, and the condensation fan is arranged on
The side of the condenser core assembly；Return air inlet is provided with front side of evaporation section, in the left and right sides of evaporation section point
First Transition air channel is not provided with, and the left and right sides is respectively arranged with the second transition air channel at the top of evaporation section；Described first
The top in transition air channel and multiple evaporation fans, the multiple evaporation fan are provided between the lower section in the second transition air channel
With an evaporator core cooperating, wherein the evaporator core is arranged between the evaporation fan and the return air inlet；
Being arranged on lower floor's air outlets of the evaporation section left and right ends, by the 3rd transition air channel to be connected to lower deck compartment cold to provide
Air quantity, the upper strata air outlet for being arranged on the left and right sides at the top of the evaporation section are connected to imperial by the 4th transition air channel
To provide cold blast rate.
In one embodiment, condenser core assembly described in each group includes two parallel flow condenser core bodies, and two
Individual parallel flow condenser core body is assembled together by connecting plate；It is provided with one end of condenser core assembly described in each group
Multiple high-voltage tubes, the other end is provided with high pressure admission tube assembly.
In one embodiment, the parallel flow condenser core body is made up of all aluminium alloy.
In one embodiment, the condensation fan is six condensation fans, and on condensation fan plate, the condensation
Blower fan plate is fixedly installed in the frame of described device.
In one embodiment, the condensation fan is brushless fan.
In one embodiment, the evaporation fan is two layers of arrangement, and each layer of evaporation fan quantity is six, every six
Evaporation fan is respectively arranged as two rows, and three evaporation fans described in every a line are arranged on evaporation fan installing plate.
In one embodiment, the frame of described device is made up of Steel material, all sealing plates in described device be by
Aluminum is made.
In one embodiment, the side in the First Transition air channel is provided with electric-controlled box, the control terminal of the electric-controlled box
The control terminal of evaporation fan and the control terminal of condensation fan are connected to by air-conditioning wire harness.
In one embodiment, one temperature sensor is set respectively in the two positions up and down of the return air inlet, for according to institute
The temperature differences of the two positions up and down of return air inlet is stated to adjust evaporation fan so that the temperature of imperial and the temperature of lower deck compartment
It is consistent.
The utility model has the advantage of the parallel condenser weight used in the utility model is lighter than tube-fin condenser
(i.e. the core assembly of two panels parallel flow condenser assembling mitigates one to core body than a piece of traditional tube-fin condenser in weight
Half, and identical refrigeration can be reached) weight of overhead unit, can be greatly reduced, and (parallel flow evaporator core is
All aluminium alloy structure, aluminium alloy density are 1/3rd of copper), so as to reduce the load capacity of vehicle, realize when car is run
It is energy-saving.Meanwhile using the condenser air-conditioner set of parallel flow type, the refrigerant charge phase of its core body internal structure demand
Pipe sheet type structure than Large Diameter Pipeline reduces a lot, and actual refrigerant charge can reduce more than 30%, so not only can be with
Reduce cost, moreover it is possible to reduce the disclosure risk of the refrigerant in air-conditioning refrigeration plant, reach energy-saving and environmentally friendly purpose.Separately
Outside, using cocurrent flow type condenser core body air-conditioning refrigeration plant due to its windage it is smaller thus cold than traditional pipe type
The air-conditioning refrigeration plant of condenser core body, noise are obviously reduced, and so as to reduce the air conditioner noises pollution inside and outside car, and carry
The comfort level in high compartment.
Brief description of the drawings
Figure 1A to Fig. 1 J illustrates the condenser core assembly in back-positioned type bus air-conditioning refrigeration device described in the utility model
Structure chart；
Fig. 2 illustrates the frame schematic diagram of back-positioned type bus air-conditioning refrigeration device described in the utility model；
Fig. 3 illustrates the installation of two groups of condenser core assemblies of back-positioned type bus air-conditioning refrigeration device described in the utility model
Schematic diagram；
The members that Fig. 4 A are illustrated in the condensation portion of back-positioned type bus air-conditioning refrigeration device described in the utility model connect
Connect relation schematic diagram；
Fig. 4 B are the close-up schematic views of the B location in Fig. 4 A；
The refrigerant that Fig. 5 A illustrate back-positioned type bus air-conditioning refrigeration device described in the utility model flows to steaming from condensation portion
Send out the part path schematic diagram of part；
Fig. 5 B illustrate the close-up schematic view of the location A in Fig. 5 A；
Fig. 6 A illustrate the First Transition air channel of back-positioned type bus air-conditioning refrigeration device described in the utility model and part is evaporated
The schematic view of the mounting position of blower fan；
Fig. 6 B illustrate the installation of another part evaporation fan of back-positioned type bus air-conditioning refrigeration device described in the utility model
Position view；
Fig. 7 A illustrate the 3rd transition air channel of back-positioned type bus air-conditioning refrigeration device described in the utility model, the 4th transition wind
The schematic view of the mounting position in road and levels air outlet；
Fig. 7 B illustrate the close-up schematic view of the location of C in Fig. 7 A；
Fig. 8 illustrates the installation site signal of the condensation fan of back-positioned type bus air-conditioning refrigeration device described in the utility model
Figure；
Fig. 9 illustrates the schematic view of the mounting position of the electric-controlled box of back-positioned type bus air-conditioning refrigeration device described in the utility model.
Embodiment
The embodiment of back-positioned type bus air-conditioning refrigeration device provided by the utility model is done below in conjunction with the accompanying drawings
Describe in detail.
Referring to Fig. 1 to Fig. 9, the utility model provides a kind of back-positioned type bus air-conditioning refrigeration device, and described device is arranged on
The top of vehicle tail engine.Described device includes an evaporation section 110 and a condensation portion 120.The evaporation section 110
The top of described device is arranged on, the condensation portion 120 is arranged on the bottom of described device, reference can be made to Fig. 8.
The condensation portion 120 includes two groups of condenser core assemblies 4,8 and multiple condensation fans 28, cold described in each group
Condenser core assembly 4,8 includes the parallel flow condenser core body 2,3 being vertically arranged.In the present embodiment, condensation described in each group
Device core assembly 4,8 includes two parallel flow condenser core bodies 2,3, and two parallel flow condenser core bodies 2,3 pass through connection
Plate is assembled together；Multiple high-voltage tubes 10,11 are provided with one end of condenser core assembly described in each group 4,8, another
End is provided with high pressure admission tube assembly 6.
Specifically, referring to shown in Figure 1A to Fig. 1 J and Fig. 3 and Fig. 4.Wherein, parallel flow condenser core body 2 with it is parallel
Flow condenser core body 3 is assembled together by connecting plate 1,5, and one end of two parallel flow condenser core bodies 2,3 passes through two height
Pressure pipe 10,11 connects, other end welding high pressure admission tube assembly 6, so as to form condenser core assembly 4, such as Figure 1A to Fig. 1 D
Shown (accompanying drawing depicts front view, left view, right view and the top view of condenser core assembly 4 respectively).Equally, concurrent flow
Condenser core 2 and parallel flow condenser core body 3 are assembled together by connecting plate 7,9, two parallel flow condenser core bodies 2,3
One end connected by two high-voltage tubes 10,11, other end welding high pressure admission tube assembly 6 is total so as to form condenser core
Into 8, (accompanying drawing depicts the front view of condenser core assembly 8, left view, right view and bowed respectively as shown in Fig. 1 F to Fig. 1 I
View).Two condenser core assemblies 4,8 is are vertically arranged, and respective one end of two condenser core assemblies 4,8 is in
Between installing plate 13 link together, and be fixed in the frame 12 of described device, two condenser core assemblies 4,8 it is respective another
One end is individually fixed in the left and right sides of frame 12.Shown in Figure 3, the entrance point 38 of two condenser core assemblies 4,8 is logical
Thread connecting mode is crossed to be connected with high pressure admission tube assembly 14.In the present embodiment, the high pressure admission tube assembly 14 is by making
It is installed on fixed support 15 in the frame 12, causes air-conditioning refrigeration plant to leak so as to avoid pipeline from loosening, institute
High pressure admission tube assembly 14 is stated to be used to input refrigerant.Referring to shown in Fig. 4 A and 4B, the outlet of two condenser core assemblies 4,8
End 39 is connected to reservoir 17 by drain pipe component 16, and the reservoir 17 is used for the expansion core into air-conditioning refrigeration plant
Body 26 continuously provides refrigerant, to adapt to the change of the thermic load of evaporator core 26, and the system for keeping whole device
Balance.
Preferably, the parallel flow condenser core body 2,3 is made up of all aluminium alloy, and air-conditioning refrigeration plant can be greatly reduced
Weight, that is, reduce vehicle load capacity, realize car operation when it is energy-saving.Due to the condenser core assembly 4,8
Using the parallel flow condenser core body 2,3 being vertically arranged, therefore, than the tube-fin condenser of prior art, in identical cloth
Between being empty it is lower by the parallel flow condenser core body 2,3 that is vertically arranged can condensation portion 120 space it is more spacious, peace
Dress maintain it is more convenient, so as to reduce the condenser core assembly 4,8 surfaces windage, tradition is significantly less than in terms of noise
The air-conditioning refrigeration plant of tube-fin condenser core body, so as to reduce the air conditioner noises pollution inside and outside car, and improve car
The comfort level in railway carriage or compartment.In addition, using parallel flow condenser core body 2,3, can be in the case where ensureing performance, needed for whole device
Refrigerant charge is less, and actual refrigerant charge can reduce more than 30%, not only contributes to reduce cost, Er Qieneng
The risk of leakage of the refrigerant in air-conditioning refrigeration plant is reduced, it is energy-saving and environmentally friendly.
Referring to shown in Fig. 8 and 9, in the present embodiment, the condensation fan 28 is arranged on the condenser core assembly 4,8
Rear side.The condensation fan 28 is six condensation fans, and on condensation fan installing plate 27, the condensation fan peace
Loading board 27 is fixedly installed in the frame 12 of described device.Preferably, the condensation fan 28 uses the super low noise of long-life
Brushless fan, so as to reach reduction air conditioner noises, improve the purpose of vehicle comfort level.
Referring to shown in Fig. 7 A, the front side of evaporation section 110 is provided with return air inlet 36, in the left and right two of evaporation section 110
Side is respectively arranged with First Transition air channel 32, and the second transition air channel (figure is respectively arranged with left and right sides of the top of evaporation section 110
Do not show).The top in the First Transition air channel 32 and between the lower section of the second transition air channel (not shown) be provided with it is more
Individual evaporation fan 30 (as shown in Figure 6 A and 6 B), the multiple cooperating of 30 and one evaporator core of evaporation fan 26, its
Described in evaporator core 26 be arranged between the evaporation fan 30 and the return air inlet 36.It is arranged on the evaporation section
Lower floor's air outlet 33 of 110 left and right ends is connected to lower deck compartment to provide cold blast rate by the 3rd transition air channel 34, is arranged on
The upper strata air outlet (not shown) of the top of evaporation section 110 left and right sides is connected to upper deck by the 4th transition air channel 35
Railway carriage or compartment is to provide cold blast rate.That is, First Transition air channel 32, the transition air channel 34 of lower floor's air outlet 33 and the 3rd form lower floor's mistake
Air channel is crossed, air quantity is sent to lower deck compartment by lower floor's transition air channel caused by lower floor's evaporation fan shown in Fig. 6 A；Second
Transition air channel, upper strata air outlet and the 4th transition air channel 35 form lower floor's transition air channel, the upper strata evaporation fan institute shown in Fig. 6 B
Caused air quantity is sent to imperial by lower floor's transition air channel.
In the present embodiment, the evaporation fan 30 is two layers of arrangement, and each layer of the quantity of evaporation fan 30 is six, often
Six evaporation fans 30 are respectively arranged as two rows, and three evaporation fans 30 described in per a line are arranged on evaporation fan installing plate 31
On.Therefore, the evaporation fan 30 can reach the wind loss minimum in air-conditioning refrigeration plant by above-mentioned arrangement, and up and down
The more uniform purpose of air output of layer.
Furthermore it is preferred that as shown in Figure 7 B, one temperature sensor is set respectively in the two positions up and down of the return air inlet 36
37.The temperature sensor 37 is used to adjust evaporation fan 30 according to the temperature difference of the two positions up and down of the return air inlet 36,
So that the temperature of imperial and the temperature of lower deck compartment are consistent.It should be noted that it is described up and down two positions respectively with
Upper strata transition air channel and lower floor's transition air channel are corresponding.After by detecting the temperature of two positions up and down, accordingly by
Change the voltage of upper strata or lower floor's evaporation fan to control the rotating speed of evaporation fan 30, transition wind in upper strata is sent into further adjustment
Road and the air output in lower floor's transition air channel, and reduce by two layers of supply air temperature difference up and down.Therefore so that the basic phase of temperature of return air inlet 36
Together, and the temperature of imperial and the temperature of lower deck compartment are consistent, to maintain a comfortable scope.That is,
By the above-mentioned setting of the evaporation fan 30 and temperature sensor 37, can solve existing product air-supply inequality, air quantity is less than normal
Present situation, and fan energy consumption can be reduced, improve observable index COP.
With reference to shown in Fig. 4 A, Fig. 5 A, 5B, Fig. 7 A and Fig. 8, the port of export of above-mentioned reservoir 17 is by being used as the height of connector
Press juice tube assembly 18 is connected to condensate tank 19.The condensate tank 19 mainly condenses using caused by evaporator core 26
Water, because the temperature of condensed water is relatively low, the refrigerant for flowing through the condenser core assembly is further condensed, and then may be used
To improve the degree of supercooling of the condenser core assembly, so that the heat transfer effect of the condenser core assembly is carried
Rise.The outlet of the condensate tank 19 is connected to stop valve 21 by being used as the high pressure drain pipe component 20 of connector, then passes through
High pressure drain pipe component 22 is connected to drier 23.The drier 23 has liquid storage, impurity screening, suction in air-conditioning refrigeration plant
Receive the effect such as moisture in refrigerant.The outlet of drier 23 is by liquid-sighting glass connecting pipe component 24 and passes through a tee joint machine
Structure 40 is divided into two branch roads 41, and two branch roads 41 are connected to knockout by the reducing pressure by regulating flow device of expansion valve 25 of outer balanced type respectively
Component (not shown) enters back into evaporator core 26, and the outlet of the evaporator core 26 is connected by storage tube assembly (not shown)
It is connected to suction port of compressor end (not shown).In the present embodiment, 12 evaporation fans 30 are divided into two groups, every group six, in two
The row arrangement of row three, and on evaporation fan installing plate 31, evaporation fan installing plate 31 is then separately mounted to a lower floor left side
On on the transition air channel of right side and top layer left and right sides transition air channel, so as to promote the hot-air in levels compartment cyclically to enter evaporation
Part 110 and reach the purpose of cooling.
In addition, it is shown in Figure 9, in the present embodiment, the left side in the First Transition air channel 32 is provided with electric-controlled box
29, the control terminal of the electric-controlled box 29 is connected to the control terminal of evaporation fan 30 and the control of condensation fan 28 by air-conditioning wire harness
End.Certainly, in other embodiments, the electric-controlled box can also be arranged on the right side in the First Transition air channel 32.By institute
State electric-controlled box and be arranged on evaporation section 110, therefore the air permeability of electrical equipment can be improved, ensure that heat radiation of electrical apparatus is good, reduce electrical equipment
Fault rate.
Shown in Figure 2, in the present embodiment, the frame 12 of described device is made up of Steel material, to ensure whole dress
The bulk strength put.All sealing plates in described device are made up of aluminum, effectively mitigate the weight of whole device, from
And the load capacity of vehicle is reduced, realize energy-saving when car is run.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of back-positioned type bus air-conditioning refrigeration device, described device is arranged on the top of vehicle tail engine, and its feature exists
In described device includes an evaporation section and a condensation portion, and the evaporation section is arranged on the top of described device, described cold
Solidifying part is arranged on the bottom of described device；The condensation portion includes two groups of condenser core assemblies and multiple condensation fans,
Condenser core assembly described in each group includes the parallel flow condenser core body being vertically arranged, and the condensation fan is arranged on described
The side of condenser core assembly；Return air inlet is provided with front side of evaporation section, is set respectively in the left and right sides of evaporation section
First Transition air channel is equipped with, the left and right sides is respectively arranged with the second transition air channel at the top of evaporation section；In the First Transition
The top in air channel and multiple evaporation fans, the multiple evaporation fan and one are provided between the lower section in the second transition air channel
Evaporator core cooperating, wherein the evaporator core is arranged between the evaporation fan and the return air inlet；Set
Lower floor's air outlet in the evaporation section left and right ends is connected to lower deck compartment to provide cold blast rate by the 3rd transition air channel,
The upper strata air outlet for being arranged on the left and right sides at the top of the evaporation section is connected to imperial to carry by the 4th transition air channel
Cooling air quantity.
2. device according to claim 1, it is characterised in that condenser core assembly described in each group is parallel including two
Flow condenser core body, and two parallel flow condenser core bodies are assembled together by connecting plate；In condenser described in each group
One end of core assembly is provided with multiple high-voltage tubes, and the other end is provided with high pressure admission tube assembly.
3. device according to claim 1, it is characterised in that the parallel flow condenser core body is made up of all aluminium alloy.
4. device according to claim 1, it is characterised in that the condensation fan is six condensation fans, and is arranged on
On condensation fan plate, the condensation fan plate is fixedly installed in the frame of described device.
5. device according to claim 4, it is characterised in that the condensation fan is brushless fan.
6. device according to claim 1, it is characterised in that the evaporation fan be two layers arrangement, each layer of evaporation
Blower fan quantity is six, and every six evaporation fans are respectively arranged as two rows, and three evaporation fans described in every a line are arranged on evaporation
On fan installation plate.
7. device according to claim 1, it is characterised in that the frame of described device is made up of Steel material, the dress
All sealing plates in putting are made up of aluminum.
8. device according to claim 1, it is characterised in that be provided with the side in the First Transition air channel automatically controlled
Box, the control terminal of the electric-controlled box are connected to the control terminal of evaporation fan and the control terminal of condensation fan by air-conditioning wire harness.
9. device according to claim 1, it is characterised in that one temperature is set respectively in the two positions up and down of the return air inlet
Sensor is spent, adjusts evaporation fan for the temperature difference of the two positions up and down according to the return air inlet so that imperial
Temperature and the temperature of lower deck compartment are consistent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720575835.9U CN206765754U (en) | 2017-05-23 | 2017-05-23 | A kind of back-positioned type bus air-conditioning refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720575835.9U CN206765754U (en) | 2017-05-23 | 2017-05-23 | A kind of back-positioned type bus air-conditioning refrigeration device |
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| CN206765754U true CN206765754U (en) | 2017-12-19 |
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ID=60640697
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210834A (en) * | 2018-09-18 | 2019-01-15 | 郑州科林车用空调有限公司 | A kind of coach air conditioner sets windward type condensator the bottom of with |
| CN109278500A (en) * | 2018-11-29 | 2019-01-29 | 江苏秋实新能源科技有限公司 | A kind of Novel condenser and air conditioning for automobiles |
| CN109733159A (en) * | 2019-02-19 | 2019-05-10 | 珠海格力电器股份有限公司 | Built-in air conditioner inside the vehicle |
| CN109823137A (en) * | 2019-01-24 | 2019-05-31 | 珠海格力电器股份有限公司 | Coach air conditioner |
| CN110260566A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of air conditioning condenser for vehicle assembly and vehicle |
-
2017
- 2017-05-23 CN CN201720575835.9U patent/CN206765754U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260566A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of air conditioning condenser for vehicle assembly and vehicle |
| CN109210834A (en) * | 2018-09-18 | 2019-01-15 | 郑州科林车用空调有限公司 | A kind of coach air conditioner sets windward type condensator the bottom of with |
| CN109210834B (en) * | 2018-09-18 | 2024-02-09 | 郑州科林车用空调有限公司 | Bottom windward condenser for passenger car air conditioner |
| CN109278500A (en) * | 2018-11-29 | 2019-01-29 | 江苏秋实新能源科技有限公司 | A kind of Novel condenser and air conditioning for automobiles |
| CN109823137A (en) * | 2019-01-24 | 2019-05-31 | 珠海格力电器股份有限公司 | Coach air conditioner |
| CN109733159A (en) * | 2019-02-19 | 2019-05-10 | 珠海格力电器股份有限公司 | Built-in air conditioner inside the vehicle |
| CN109733159B (en) * | 2019-02-19 | 2023-10-27 | 珠海格力电器股份有限公司 | Air conditioner built in vehicle |
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