CN114083954A - Overhead vehicle-mounted air conditioner - Google Patents
Overhead vehicle-mounted air conditioner Download PDFInfo
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- CN114083954A CN114083954A CN202010858305.1A CN202010858305A CN114083954A CN 114083954 A CN114083954 A CN 114083954A CN 202010858305 A CN202010858305 A CN 202010858305A CN 114083954 A CN114083954 A CN 114083954A
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- 230000007704 transition Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 7
- 230000002349 favourable effect Effects 0.000 abstract description 12
- 238000005057 refrigeration Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00028—Constructional lay-out of the devices in the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00078—Assembling, manufacturing or layout details
- B60H2001/00107—Assembling, manufacturing or layout details characterised by the relative position of the heat exchangers, e.g. arrangements leading to a curved airflow
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses an overhead vehicle-mounted air conditioner, which comprises: a housing having a base and a shell; the inner shell is positioned in the shell and fixedly arranged on the base; an evaporator disposed in an inclined manner inside the inner case; a crossflow blower located within the inner casing; the cross-flow fan is provided with an air duct plate for forming an air duct, cross-flow blades located in the air duct and a motor for driving the cross-flow blades to rotate, the upper end of the air duct plate is hermetically arranged with the evaporator, and the lower end of the air duct plate is hermetically arranged with the base. The evaporator is obliquely arranged, so that the heat exchange area of heat exchange is increased, and the heat exchange efficiency is improved; through setting up the cross-flow fan, be favorable to the noise reduction to setting up the sealed setting of wind channel board and evaporimeter, being favorable to with the whole wind channels that get into of air behind the evaporimeter heat transfer in, being favorable to improving refrigeration efficiency.
Description
Technical Field
The invention belongs to the technical field of vehicle-mounted air conditioners, and particularly relates to an overhead vehicle-mounted air conditioner.
Background
With the increasing demand of people for driving comfort, the air conditioner of the automobile becomes one of the necessary devices of the automobile cockpit. At present, air conditioners additionally arranged on small-sized vendors' trucks or large and medium-sized trucks in China are all built-in air conditioners generally, namely, the air conditioners are all positioned in a truck cab. However, in order to increase the space of the cargo compartment, the cab space of the truck is usually designed to be narrow, so that the cab of some small-sized or medium-sized trucks is inconvenient to install the automobile air conditioner, and even if the automobile air conditioner can be installed forcibly, the subsequent maintenance and cleaning of the automobile air conditioner are inconvenient due to the narrow space.
Ordinary overhead type air conditioner all-in-one, its indoor side evaporation fan often uses centrifugal or axial-flow fan, and the evaporimeter adopts the vertical structural style of placing, and the heat exchange efficiency of this kind of form is lower, and simultaneously, centrifugal or axial-flow fan's noise is great, and user's use is experienced not well.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an overhead vehicle-mounted air conditioner which is beneficial to improving the heat exchange efficiency and reducing the noise.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
a ceiling-mounted vehicular air conditioner comprising:
a housing having a base and a shell;
the inner shell is positioned in the shell and fixedly arranged on the base;
an evaporator disposed in an inclined manner inside the inner case;
a crossflow blower located within the inner casing;
the cross-flow fan is provided with an air duct plate for forming an air duct, cross-flow blades located in the air duct and a motor for driving the cross-flow blades to rotate, the upper end of the air duct plate is hermetically arranged with the evaporator, and the lower end of the air duct plate is hermetically arranged with the base.
Furthermore, the cross-flow fan further comprises a first supporting piece for supporting and fixing the motor, the first supporting piece is buckled on the evaporator, and a first flow guide cavity communicated with the air duct is formed between the first supporting piece and the evaporator.
Furthermore, the first supporting part is provided with an accommodating cavity for supporting and fixing the motor, and a first air guide sleeve which extends towards the evaporator along the outer side of the accommodating cavity, and the first air guide sleeve and the evaporator are fixedly arranged.
Furthermore, the air duct plate is provided with an arc-shaped main plate connected with the evaporator, a first end plate and a second end plate, wherein the first end plate and the second end plate are positioned at two ends of the arc-shaped main plate, and the first end plate and the first supporting piece are arranged in a sealing mode.
Furthermore, first kuppe have with the sealed first assembly plate that sets up of wind channel board, first assembly plate with form between the evaporimeter first intercommunication mouth that first water conservancy diversion chamber and wind channel chamber communicate.
Furthermore, the end part of the first assembling plate close to the evaporator is provided with a first arc-shaped edge extending towards the air duct plate and a first assembling edge respectively connected with the upper end and the lower end of the first arc-shaped edge, and the first arc-shaped edge is wrapped on the outer side of the cross-flow fan blade.
Furthermore, the first assembling edge is provided with a first assembling portion arranged in parallel with the evaporator and a second assembling portion bent and extended along one end of the first assembling portion close to the first arc-shaped edge, and a first connecting plate is arranged between the second assembling portion and the first arc-shaped edge.
Furthermore, a double-layer first connecting plate arranged in parallel is arranged between the second assembling part and the first arc-shaped edge
Further, the distance between the first connecting plate and the evaporator is greater than the distance between the first assembling portion and the evaporator.
Furthermore, two first bearing grooves which are used for supporting a main shaft of the motor and are oppositely arranged are arranged on the cavity wall of the accommodating cavity.
Furthermore, the cross-flow fan further comprises a second supporting piece used for supporting and fixing one side, far away from the motor, of the cross-flow fan blade, the second supporting piece is buckled on the evaporator, and a second flow guide cavity communicated with the air duct is formed between the second supporting piece and the evaporator.
Further, the second supporting piece is located on one side of the air duct plate far away from the motor.
Furthermore, the second support piece is provided with a second support plate, a second arc-shaped plate extending axially along the second support plate, and a second air guide sleeve extending axially along the second arc-shaped plate towards the evaporator, and the second air guide sleeve and the evaporator are fixedly arranged.
Furthermore, the second support plate is provided with a second arc-shaped edge extending towards the air duct plate direction, and the second air guide sleeve extends towards the air duct plate direction and is connected with the upper end and the lower end of the second arc-shaped edge respectively.
Furthermore, a third mounting edge extending towards the second supporting piece is arranged on the second end plate, and the third mounting edge is hermetically fixed with the second supporting plate and the second assembling edge.
Furthermore, a second connecting plate is arranged between the second assembling edge and the second arc-shaped edge, and a second communicating port for communicating the second flow guide cavity and the air duct cavity is formed among the second assembling edge, the second arc-shaped edge, the second connecting plate and the evaporator.
Furthermore, a double-layer second connecting plate arranged in parallel is arranged between the second assembling edge and the second arc-shaped edge.
Further, the second arc-shaped edge is coated on the outer side of the cross-flow fan blade.
Further, the distance between the second connecting plate and the evaporator is larger than the distance between the second assembling edge and the evaporator.
Furthermore, a second bearing hole for supporting the cross-flow fan blade is formed in the second supporting plate.
Furthermore, the cross-flow fan also comprises a volute tongue for guiding wind.
Furthermore, an air inlet communicated with the air channel is formed in the base, the overhead vehicle-mounted air conditioner further comprises a transition air channel extending downwards along the air inlet, and an air outlet is formed in the lower end of the transition air channel.
Furthermore, a plurality of interval wind plates are arranged in the transition air duct.
Furthermore, an air deflector is arranged at the air outlet.
Furthermore, an air return opening communicated with the inside of the inner shell is formed in the base, the overhead vehicle-mounted air conditioner further comprises an air return cavity communicated with the air return opening and located below the air return opening, and an air inlet is formed in the air return cavity.
Furthermore, the transition air duct and the return air cavity are adjacently arranged side by side.
Further, the width of the air return cavity is larger than that of the air return opening.
Furthermore, air inlets are formed in the lower end of the air return cavity and one side far away from the transition air duct.
Further, the size of the evaporator in the axial direction of the cross-flow fan blade is larger than that of the air duct plate in the axial direction of the cross-flow fan blade.
Further, the evaporator is arranged in an upward direction to be inclined in a direction away from the cross-flow fan.
Further, still including setting up compressor, condenser, condensation fan and the control circuit in the casing.
Compared with the prior art, the invention has the advantages and positive effects that: the evaporator is obliquely arranged, so that the heat exchange area of heat exchange is increased, and the heat exchange efficiency is improved; through setting up the cross-flow fan, be favorable to the noise reduction to setting up the sealed setting of wind channel board and evaporimeter, being favorable to with the whole wind channels that get into of air behind the evaporimeter heat transfer in, being favorable to improving refrigeration efficiency.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a ceiling-mounted vehicle-mounted air conditioner provided by the invention;
FIG. 2 is a schematic front view of the structure of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is an enlarged schematic view of a portion of the structure of FIG. 4;
FIG. 6 is a schematic front view of the structure of FIG. 4;
FIG. 7 is an enlarged schematic view of a portion of the structure of FIG. 6;
FIG. 8 is a schematic view of the cross-flow fan of FIG. 3 with the cross-flow fan removed;
FIG. 9 is a schematic view of a crossflow blower configuration;
FIG. 10 is an enlarged view of the first support member of FIG. 9;
FIG. 11 is a schematic view of a first support member;
FIG. 12 is a schematic view of the structure of FIG. 11 from another angle;
FIG. 13 is an enlarged view of the second support member of FIG. 9;
FIG. 14 is a schematic structural view of a second support member;
fig. 15 is a schematic view of the structure at another angle in fig. 14.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the positional relationships shown in the drawings, and the direction of the axis of the crossflow blower 40 is the "axial direction" and also the "left-right direction". The terminology is for the purpose of describing the invention only and is for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated, and is not to be considered limiting of the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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 by those skilled in the art according to specific situations.
Referring to fig. 1 to 15, an embodiment of a ceiling-mounted vehicle air conditioner according to the present invention is a ceiling-mounted vehicle air conditioner, which is fixedly installed on a roof of a vehicle, and includes: the device comprises a shell 10, an inner shell 20, an evaporator 30 and a cross-flow fan 40, wherein the shell 10 is provided with a base 11 and an outer shell 12 buckled on the base 11, and the base 11 is fixed on the top of a vehicle; the inner shell 20 is positioned in the shell 10, and the inner shell 20 is fixedly arranged on the base 11; the overhead vehicle-mounted air conditioner is of an integral structure, the evaporator 30 and the cross-flow fan 40 are covered by the inner shell 20, air in a cab enters the inner shell 20, exchanges heat with the evaporator 30 and then is blown out of the cab. The cross-flow fan 40 is provided with an air duct plate 41 for forming an air duct 410, cross-flow blades 42 positioned in the air duct 410, and a motor 43 for driving the cross-flow blades 42 to rotate, wherein the upper end of the air duct plate 41 is hermetically arranged with the evaporator 30, and the lower end is hermetically arranged with the base 11. The evaporator 30 is obliquely arranged, so that the heat exchange area of heat exchange is increased, and the heat exchange efficiency is improved; through setting up cross-flow fan 40, be favorable to the noise reduction to setting up the sealed setting of wind channel board 41 and evaporimeter 30, being favorable to getting into the wind channel with the whole of air behind the evaporimeter 30 heat transfer in, being favorable to improving refrigeration efficiency.
The overhead type vehicle air conditioner further includes a compressor, a condenser, a condensing fan, and a control circuit disposed in the casing 10 for implementing a refrigeration cycle, the compressor, the condenser, the condensing fan, and the control circuit being not shown in the drawing, and the compressor, the condenser, the condensing fan, and the control circuit being located outside the inner case 20.
Referring to fig. 3, an output shaft of the motor 43 is connected with the cross-flow fan blade 42, that is, the motor 43 and the cross-flow fan blade 42 are coaxially arranged, in order to support and fix the motor 43 and the cross-flow fan blade 42, the cross-flow fan 40 further includes a first supporting member 44 for supporting and fixing the motor 43, and a second supporting member 45 for supporting and fixing a side of the cross-flow fan blade 42 far from the motor 43, wherein a side of the cross-flow fan blade 42 close to the motor 43 is connected to the output shaft of the motor 43. The first support 44 and the second support 45 are respectively located on the left and right sides of the duct plate 41, and are defined in the axial direction of the cross flow fan 40 as the left-right direction.
Referring to fig. 3, 8 and 9, the duct plate 41 has an arc-shaped main plate connected to the evaporator 30, and a first end plate 412 and a second end plate 413 at left and right ends of the arc-shaped main plate, wherein the first end plate 412 is fixed to the first support 44 in a sealing manner, and the second end plate 413 is fixed to the second support 45 in a sealing manner. The size of the air duct plate 41 in the left and right direction is matched with that of the cross-flow fan blade 42; an air passing opening 111 communicated with the air duct 410 is formed in the base 11, and the axial size of the air duct plate 41 in the cross-flow fan blade 42 is matched with the axial size of the air passing opening 111 in the cross-flow fan blade 42; the size of the evaporator 30 in the axial direction of the cross-flow fan 42 is larger than the size of the air duct plate 41 in the axial direction of the cross-flow fan 42.
The first supporting member 44 is fastened on the evaporator 30, and a first flow guiding cavity 440 communicated with the air duct 410 is formed between the first supporting member 44 and the evaporator 30; the second supporting member 45 is fastened to the evaporator 30, and a second flow guiding cavity 450 communicated with the air duct 410 is formed between the second supporting member 45 and the evaporator 30. The first support 44, the air duct plate 41 and the second support 45 are sequentially fixed in a sealing manner in the left-right direction and buckled on the air outlet side of the evaporator 30, and the size of the first support 44, the air duct plate 41 and the second support 45 in the left-right direction is matched with the size of the evaporator 30 in the left-right direction. The air after heat exchange through the evaporator 30 reaches the first diversion cavity 440 through a part of the air covered by the first supporting member 44 on the evaporator 30, flows into the air duct 410 from the first diversion cavity 440, and flows out of the air duct 410 under the driving of the cross-flow fan 42; the air passing through the air duct plate 41 on the evaporator 30 covers a part of the air to reach the air duct 410; part of the air covered by the second support 45 on the evaporator 30 reaches the second diversion cavity 450 and flows into the air duct 410 from the second diversion cavity 450; by arranging the first supporting member 44, the motor 43 is supported and fixed, and the air guide function is achieved, so that the size of the evaporator 30 can be increased without increasing the size of the air duct plate 41, and the working efficiency of the air conditioner is improved; through the arrangement of the second supporting piece 45, the cross-flow fan blade 42 is supported, the air guide function is achieved, the size of the evaporator 30 can be increased under the condition that the size of the air duct plate 41 is not increased, and the improvement of the working efficiency of the air conditioner is facilitated.
Referring to fig. 9 to 11, the first support 44 has a receiving cavity 441 for supporting and fixing the motor 43, and a first air guide sleeve 442 extending along the outer side of the receiving cavity 441 toward the evaporator 30, and the first air guide sleeve 442 is fixedly disposed between the evaporator 30 and the first air guide sleeve 442. The accommodating cavity 441 is open at one side far away from the evaporator 30, the motor 43 is positioned in the accommodating cavity 441, a first bearing groove 4411 for supporting a main shaft of the motor 43 is arranged on the cavity wall of the accommodating cavity 441, and two first bearing grooves 4411 which are oppositely arranged left and right are arranged on the cavity wall of the accommodating cavity 441. The first air guide sleeve 442 extends towards the evaporator 30 along the open end of the accommodating cavity 441, and the cross-sectional area of the first air guide sleeve 442 gradually increases in a direction approaching the evaporator 30, that is, the first air guide sleeve 442 is of a square cone structure, which is beneficial to enlarging the area of the evaporator 30 that the first air guide sleeve 442 can cover, and is beneficial to the heat exchanged air to be collected by the first air guide sleeve 442 in a direction away from the evaporator 30. The first guide chamber 440 is a space surrounded by the accommodation chamber 441 and the first guide cover 442.
The first guide cover 442 has a first mounting plate 4421 hermetically installed with the air duct plate 41, a first communication hole 443 is formed between the first mounting plate 4421 and the evaporator 30 to communicate the first guide chamber 440 with the air duct chamber 410, and air flowing into the first guide chamber 440 enters the air duct chamber 410 through the first communication hole 443. By arranging the first communication port 443 between the first assembling plate 4421 and the evaporator 30, the first support 44 is automatically formed after being mounted and fixed to the evaporator 30 without being specially formed, which facilitates the sealing arrangement of the first assembling plate 4421 and the first end plate 412 and the structural strength of the first assembling plate 4421; in addition, since the through-flow fan 42 is disposed in the air duct 410, it is necessary to ensure that the through-flow fan 42 cannot block the first communication port 443, and ensure that the air flowing in from the first communication port 443 is accelerated by the through-flow fan 42.
The end part of the first assembling plate 4421 close to the evaporator 30 is provided with a first arc edge 4423 extending towards the direction of the air duct plate 41 and a first assembling edge 4424 respectively connected with the upper end and the lower end of the first arc edge 4423, and the first arc edge 4423 covers the outer side of the cross-flow fan 42. The first arc-shaped edge 4423 is arranged to play a role in guiding air, so as to guide the air in the first air guide cover 442 into the air duct cavity 410, prevent the air in the air duct cavity 21 410 from reaching a gap between the cross-flow fan blade 42 and the first assembling plate 4421, and ensure that the air in the air duct cavity 410 flows to the air passing opening 111 after passing through the acceleration of the cross-flow fan blade 42.
The first fitting rim 4424 is used for fixing with the first end plate 412, the first fitting rim 4424 has a first fitting portion 44241 arranged in parallel with the evaporator 30 and a second fitting portion 44242 extending along an end of the first fitting portion 44241 close to the first arc rim 4423, the second fitting portion 44242 is connected with the first arc rim 4423, and a first connecting plate 4425 is arranged between the second fitting portion 44242 and the first arc rim 4423. The first assembling plate 4421 has an end close to the evaporator 30 formed with two first assembling edges 4424, two first connecting plates 4425, and a first arc-shaped edge 4423. Preferably, a first connection plate 4425 is provided between the second assembling portion 44242 and the first arc-shaped rim 4423 in parallel to form a double layer, which is advantageous in increasing the structural strength. The distance between the first connecting plate 4425 and the evaporator 30 is greater than the distance between the first assembling portion 44241 and the evaporator 30, that is, the opening in the middle of the first communicating opening 443 is large, and the openings at the upper and lower ends are small, so that the air in the first guiding cavity 440 mainly enters the air duct 410 through the middle of the first communicating opening 443, which is beneficial to being driven by the cross-flow fan 42 to accelerate, and is beneficial to improving the heat exchange efficiency.
Referring to fig. 9, 12-15, the second supporting member 45 is located on a side of the air duct plate 41 away from the motor 43, that is, the second supporting member 45 is fixed on the second end plate 413. The second support 45 has a second support plate 451, a second arc-shaped plate 452 extending axially along the second support plate 451, and a second air guide sleeve 453 extending toward the evaporator 30 along the second arc-shaped plate 452, wherein the second air guide sleeve 453 is fixed to the evaporator 30. Second kuppe 453 and second arc 452 enclose to establish and form second water conservancy diversion chamber 450, set up second arc 452 and protruding to the direction of evaporimeter 30 for second arc 452 has occupied the inside space of part second kuppe 453, makes the volume of second water conservancy diversion chamber 450 reduce, and second arc 452 is favorable to the drainage, makes the smooth quick wind channel 410 that reaches of second water conservancy diversion chamber 450's gas in. The second fairings 453 have a sectional area gradually increasing in a direction approaching the evaporator 30, facilitating an increase in the area of the evaporator 30 where the second fairings 453 cover the second guide chamber 450, and facilitating collection and guiding of air entering the second guide chamber 450.
The second support plate 451 is provided with a second bearing hole 4511 for supporting the cross-flow fan blade 42, and the second bearing hole 4511 and the first bearing groove 4411 are coaxially arranged. The second support plate 451 is provided with a second arc-shaped edge 4512 extending towards the air duct plate 41, and a second dome 453 is provided with a second assembling edge 4531 extending towards the air duct plate, and the second assembling edge 4531 is respectively connected with the upper end and the lower end of the second arc-shaped edge 4512. The second arc-shaped edge 4512 covers the outer side of the cross-flow fan blade 42. The second arc-shaped edge 4512 is arranged to play a role in guiding air, so as to guide the air in the second air guide sleeve 453 into the air duct cavity 410, prevent the air in the air duct cavity 410 from reaching a gap between the cross-flow fan blade 42 and the first assembling plate 4421, and ensure that the air in the air duct cavity 410 flows to the air passing opening 111 after passing through the acceleration of the cross-flow fan blade 42. The second mounting edge 4531 is used for fixing with the second end plate 413, a third mounting edge 4131 extending towards the second supporting member 45 is provided on the second end plate 413, and the third mounting edge 413 is hermetically fixed with the second supporting plate 451 and the second mounting edge 4531.
A second connecting plate 454 is arranged between the second assembling edge 4531 and the second arc-shaped edge 4512, and a second communication port for communicating the second diversion cavity 450 with the air duct cavity 410 is formed between the second assembling edge 4531, the second arc-shaped edge 4512 and the second connecting plate 454 and the evaporator 30. It is preferable to provide a second connecting plate 454 with two parallel layers between the second assembling edge 4531 and the second arc-shaped edge 4512, which is beneficial to increase the structural strength.
The distance between the second connecting plate 454 and the evaporator 30 is greater than the distance between the second arc-shaped edge 4512 and the evaporator 30, that is, the opening in the middle of the first communicating opening 443 is larger, and the openings at the upper and lower ends are smaller, so that the air in the first guiding cavity 440 mainly enters the air duct 410 through the middle of the first communicating opening 443, which is beneficial to being driven by the cross-flow fan 42 to accelerate, and is beneficial to improving the heat exchange efficiency.
Referring to fig. 4-7, an air inlet 111 communicated with the air duct 410 is formed in the base 11, the overhead vehicle air conditioner further includes a transition air duct 50 extending downward along the air inlet 111, and an air outlet 51 is formed at the lower end of the transition air duct 50; through setting up transition wind channel 50, be favorable to moving down of air outlet 51, be favorable to the refrigeration effect. A plurality of interval wind boards 52 are arranged in the transition wind channel 50, which is beneficial to the uniformity of wind outlet in the left and right directions of the wind outlet 51, and the interval wind boards 52 can be arranged to rotate, so as to realize the adjustment of wind direction. The outlet 111 is provided with a baffle 53, and the baffle 53 is used for adjusting the size of the outlet 51 and the direction of the outlet wind. The crossflow blower 40 also includes a volute tongue 46 for guiding air.
The base 11 is provided with a return air inlet 112 communicated with the inside of the inner shell 20, the overhead vehicle-mounted air conditioner further comprises a return air cavity 60 communicated with the return air inlet 112, the return air cavity 60 is positioned below the return air inlet 112, and the return air cavity 60 is provided with an air inlet 61. The transition air duct 50 and the air return cavity 60 are adjacently arranged side by side, the width of the air return cavity 60 is larger than that of the air return opening 112, and the air return cavity 60 is arranged, so that the rectification of return air is facilitated, and the air inlet efficiency is improved. An air inlet 61 is arranged at the lower end of the return air cavity 60 and at one side far away from the transition air duct 50. The evaporator 30 is disposed obliquely in an upward direction away from the crossflow blower 40.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A ceiling-mounted vehicle-mounted air conditioner is characterized by comprising:
a housing having a base and a shell;
the inner shell is positioned in the shell and fixedly arranged on the base;
an evaporator disposed in an inclined manner inside the inner case;
a crossflow blower located within the inner casing;
the cross-flow fan is provided with an air duct plate for forming an air duct, cross-flow blades located in the air duct and a motor for driving the cross-flow blades to rotate, the upper end of the air duct plate is hermetically arranged with the evaporator, and the lower end of the air duct plate is hermetically arranged with the base.
2. The overhead vehicular air conditioner according to claim 1, wherein the crossflow blower further comprises a first support member for supporting and fixing the motor, the first support member is fastened to the evaporator, and a first flow guide cavity communicated with the air duct is formed between the first support member and the evaporator.
3. The overhead vehicular air conditioner according to claim 2, wherein the first support member has a receiving cavity for supporting and fixing the motor, and a first air guide sleeve extending along an outer side of the receiving cavity toward the evaporator, and the first air guide sleeve is fixedly arranged with the evaporator.
4. The overhead vehicular air conditioner according to claim 3, wherein the first dome has a first mounting plate sealingly disposed with the air duct plate, and a first communication port communicating the first guide chamber and the air duct chamber is formed between the first mounting plate and the evaporator.
5. The overhead vehicular air conditioner according to claim 4, wherein a first arc-shaped edge extending towards the air duct plate and a first assembling edge respectively connected with the upper end and the lower end of the first arc-shaped edge are arranged at the end part of the first assembling plate close to the evaporator, and the first arc-shaped edge covers the outer side of the cross-flow fan blade.
6. The overhead type vehicle air conditioner according to claim 5, wherein the first mounting edge has a first mounting portion arranged in parallel with the evaporator and a second mounting portion extending along an end of the first mounting portion adjacent to the first arc-shaped edge, and a first connecting plate is provided between the second mounting portion and the first arc-shaped edge.
7. The overhead vehicular air conditioner according to any one of claims 1 to 6, wherein the cross-flow fan further comprises a second support member for supporting and fixing a side of the cross-flow fan blade away from the motor, the second support member is fastened on the evaporator, and a second flow guide cavity communicated with the air duct is formed between the second support member and the evaporator.
8. The overhead vehicular air conditioner according to claim 7, wherein the second support member has a second support plate, a second arc-shaped plate extending axially along the second support plate, and a second air guide sleeve extending along the second arc-shaped plate toward the evaporator, and the second air guide sleeve is fixedly arranged with the evaporator.
9. The overhead type vehicle-mounted air conditioner according to any one of claims 1 to 6, wherein an air passing opening communicated with the air duct is formed in the base, the overhead type vehicle-mounted air conditioner further comprises a transition air duct extending downwards along the air passing opening, and an air outlet is formed in the lower end of the transition air duct.
10. The overhead type vehicle-mounted air conditioner according to any one of claims 1 to 6, wherein a return air inlet communicated with the inside of the inner casing is formed in the base, the overhead type vehicle-mounted air conditioner further comprises a return air chamber communicated with the return air inlet and positioned below the return air inlet, and an air inlet is formed in the return air chamber; the overhead vehicle-mounted air conditioner also comprises a compressor, a condenser, a condensing fan and a control circuit which are arranged in the shell.
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| CN202010858305.1A CN114083954B (en) | 2020-08-24 | 2020-08-24 | Overhead vehicle-mounted air conditioner |
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| CN202010858305.1A CN114083954B (en) | 2020-08-24 | 2020-08-24 | Overhead vehicle-mounted air conditioner |
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| CN114083954B (en) | 2024-03-12 |
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