CN219903980U - Split type overhead motor home air conditioning system and overhead internal unit - Google Patents

Abstract

The utility model provides a split overhead motor home air conditioning system, which comprises an overhead inner unit and an independent outer unit; the overhead internal unit comprises a panel assembly and an evaporation assembly which are arranged on the roof of the vehicle; the independent outer unit comprises a condensation component; the evaporation assembly comprises a first shell, wherein the first shell covers the volute, the evaporation fan and the evaporator; a heat exchange space is formed between the volute and the first shell; the evaporating fan forms a pressure area in the heat exchange space so as to enable air to enter and exit the heat exchange space through the panel assembly; the evaporator exchanges heat with the air entering the heat exchange space; the condensing assembly comprises a second shell which is used for arranging the condensing fan, the condenser and the compressor cover therein; the overhead inner unit is arranged at a first position of the roof of the caravan, and the independent outer unit is arranged at a second position of the caravan; the intelligent indoor unit has the advantages that the independent outer unit and the overhead inner unit are separated and installed at the second position of the motor home, vibration noise generated by concentrated installation is avoided, and the intelligent indoor unit is particularly suitable for small motor home.

Description

Split type overhead motor home air conditioning system and overhead internal unit

Technical Field

The utility model relates to a motor home air conditioning system, in particular to a split overhead motor home air conditioning system which comprises an overhead inner unit arranged on the roof of a motor home and an independent outer unit which is arranged at other positions of the motor home and is separated from the overhead inner unit, wherein the independent outer unit comprises a condensing system, a compressor and the like.

Background

The air conditioners installed on the motor home are mainly of three types and are divided into an overhead air conditioner, a bottom air conditioner and a split air conditioner.

The hidden type motor home air conditioner external unit and the motor home air conditioner disclosed by the utility model patent with the publication number of CN209426526U are bottom air conditioners which are generally installed under beds in motor home or at the bottoms of sofas, have low noise, but have the advantages of limited air inlet and outlet, high power consumption, poor refrigeration effect and higher installation cost, and are complicated to install because an air outlet pipeline is required to be arranged in the carriage of the motor home and holes are required to be formed in the bottoms of the motor home.

The design of a modified system of the multi-split variable-frequency air conditioner for the motor home disclosed in the patent with the publication number of CN208428927U is a split air conditioner, and a compressor and a condenser are installed in a split mode. The split air conditioner is characterized in that the parts with larger noise are arranged outside the vehicle to reduce the noise of the air conditioner in the vehicle, but the internal machine is larger, generally a hanging machine occupies a larger area in the vehicle, reasonable layout is needed, the appearance coordination of the motor home is influenced, jolt during driving is easy to occur, and the consequences of extrusion, deformation, damage and falling are threatened to the safety of passengers.

The motor home air conditioning unit suitable for the large-space vehicle is disclosed in the patent with the publication number of CN217917528U, is a top air conditioner, is arranged at the top of the motor home, occupies smaller space in the motor home, and has the advantage of quicker and uniform air outlet at the center of the vehicle body. However, because the compressor, the condenser system, the evaporator system, the compressor, the internal fan, the external fan and the like are all concentrated in one shell and are arranged at the same position of the roof in a concentrated manner, vibration noise generated by starting and working of an air conditioner is large, vibration resonance is easily generated with the whole car, the comfort is poor, the occupied roof area is high, and the vehicle roof has high bearing requirement on the roof and is difficult to be applied to small-sized trailer caravans, movable wooden houses, self-propelled caravans and the like.

Disclosure of Invention

In view of the defects of heavy weight, high noise and high vibration of the existing overhead motor home air conditioning unit, the utility model provides a split overhead motor home air conditioning system, which is characterized in that an integrated overhead air conditioning unit is split into two parts which are respectively and independently installed, the split overhead air conditioning system comprises an overhead inner unit installed on the roof of a motor home, and an independent outer unit which is installed at other positions of the motor home and is separated from the overhead inner unit, wherein the overhead inner unit comprises a panel assembly with an air inlet and an air outlet at the inner side of the roof and an evaporation assembly at the outer side of the roof; the independent outer unit comprises a condensing system and a compressor, and can be arranged at other positions of the roof of the motor home or at the position of the periphery of the motor home or the bottom of the motor home.

The technical scheme adopted for solving the technical problems is as follows: the split overhead motor home air conditioning system comprises an overhead inner unit and an independent outer unit; the overhead internal unit comprises a panel assembly arranged on the inner side of the vehicle roof and an evaporation assembly arranged on the outer side of the vehicle roof; the independent external unit comprises a condensation component;

the panel assembly is provided with at least one air inlet and at least one air outlet;

the evaporation assembly comprises a first shell, a volute, an evaporation fan and an evaporator; the first shell covers the volute, the evaporation fan and the evaporator;

the volute cover is arranged in the first shell so as to form a heat exchange space between the volute and the first shell; the evaporation fan and the evaporator are arranged in the heat exchange space;

the evaporating fan is used for forming a pressure area in the heat exchange space so as to enable air to enter and exit the heat exchange space through the panel assembly; the evaporator is used for performing heat exchange with air entering the heat exchange space;

the condensing assembly comprises a second shell, a condensing fan, a condenser and a compressor; the second shell is provided with the condensing fan, the condenser and the compressor;

the overhead inner unit is used for being installed at a first position of a roof of the caravan, and the independent outer unit is used for being installed at a second position of the caravan.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: the second location includes a different roof other location than the first location, a body of a caravan, or a bottom of a caravan.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: the evaporating fan is an axial flow fan or a centrifugal fan;

the condensing fan is an axial flow fan or a centrifugal fan.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: the evaporator can be any one of four-side surrounding square shapes, U shapes, L shapes, double L shapes and one to four flat plates.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: the panel assembly can be any one of a two-sided air-out type, a four-sided air-out type and an air duct air-out type, or a flexible configuration type of two-sided air-out and four-sided air-out.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: the evaporation assembly further comprises a motor bracket and a partition plate;

the first shell covers the motor bracket, the partition board, the volute, the evaporation fan and the evaporator;

the evaporating fan is arranged on the motor bracket;

the partition board is arranged in the volute to divide the heat exchange space into an air inlet channel and an air outlet channel;

when the evaporation fan is positively arranged, a positive pressure zone is formed in the heat exchange space, an air inlet channel is formed at the inner side of the partition plate, and an air outlet channel is formed between the outer side of the partition plate and the volute; the evaporator is positioned in the air inlet channel;

when the evaporation fan is reversely arranged, a negative pressure area is formed in the heat exchange space, an air outlet channel is formed at the inner side of the partition plate, and an air inlet channel is formed between the outer side of the partition plate and the volute; the evaporator is located in the air outlet channel.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: the second shell comprises a second bottom shell arranged at the second position and a second top shell which is combined with the second bottom shell cover;

the condensing fan, the condenser and the compressor are mounted on the second bottom case; the compressor is arranged beside the condensing fan; the condenser is arranged around the condensing fan and the compressor in a surrounding way;

the second top cover is provided on the second bottom case to house the condensing fan, the condenser, and the compressor therein.

The preferred technical scheme adopted by the utility model for solving the technical problems is as follows: and a connecting pipeline for passing through a refrigerant is arranged between the overhead inner unit and the independent outer unit.

The utility model solves the technical problems by adopting another technical scheme as follows: the overhead internal unit comprises a panel assembly arranged on the inner side of the vehicle roof and an evaporation assembly arranged on the outer side of the vehicle roof;

the panel assembly is provided with at least one air inlet and at least one air outlet;

the evaporation assembly comprises a first shell, a motor bracket, a partition board, a volute, an evaporation fan and an evaporator;

the first shell covers the motor bracket, the partition board, the volute, the evaporation fan and the evaporator;

the volute cover is arranged in the first shell so as to form a heat exchange space between the volute and the first shell; the motor support, the partition plate, the volute, the evaporating fan and the evaporator are arranged in the heat exchange space;

the evaporating fan is used for forming a pressure area in the heat exchange space so as to enable air to enter and exit the heat exchange space through the panel assembly; the evaporator is used for performing heat exchange with air entering the heat exchange space;

the evaporating fan is arranged on the motor bracket;

the partition board is arranged in the volute to divide the heat exchange space into an air inlet channel and an air outlet channel; the evaporator is positioned in the air inlet channel or the air outlet channel.

The other technical scheme adopted by the utility model for solving the technical problems is preferably as follows: the first shell comprises a first bottom shell arranged on the outer side of the vehicle roof and a first top shell combined with the first bottom shell cover;

the volute cover is arranged on the first bottom shell so as to form a heat exchange space between the volute and the first bottom shell;

the first top shell cover is arranged outside the volute casing so as to cover the motor support, the partition board, the volute casing, the evaporation fan and the evaporator.

The other technical scheme adopted by the utility model for solving the technical problems is preferably as follows: the evaporation fan is an axial flow fan;

the motor bracket comprises a first top plate, a fan port is formed in the first top plate, and the axial flow fan is arranged below the fan port;

the partition plate comprises a first isolation cylinder; the axial flow fan is positioned in the first isolation cylinder, and the evaporator is arranged around the periphery of the first isolation cylinder; the first top plate cover is arranged at the upper end of the evaporator;

when the axial flow fan is positively arranged, a positive pressure area is formed in the heat exchange space, and an air inlet channel is formed on the inner side of the first isolation cylinder, the fan opening and the upper part of the first top plate; an air outlet channel is formed between the outer side of the first isolation cylinder and the volute; the evaporator is positioned in the air outlet channel;

when the axial flow fan is reversely arranged, a negative pressure area is formed in the heat exchange space, and an air outlet channel is formed on the inner side of the first isolation cylinder, the fan opening and the upper part of the first top plate; an air inlet channel is formed between the outer side of the first isolation cylinder and the volute; the evaporator is positioned in the air inlet channel.

The other technical scheme adopted by the utility model for solving the technical problems is preferably as follows: the evaporating fan is a centrifugal fan;

the partition plate comprises a second top plate, and a second isolation cylinder is arranged in the middle of the second top plate;

when the centrifugal fan is installed in the forward direction, the centrifugal fan is installed below the motor bracket and above the second isolation cylinder; the lower surface of the second top plate is covered at the upper end of the evaporator, and the second isolation cylinder extends downwards into the evaporator; for creating a positive pressure zone within the heat exchange space;

forming an air inlet channel on the inner side of the second isolation cylinder and above the second top plate; an air outlet channel is formed between the outer side of the second isolation cylinder and the volute; the evaporator is positioned in the air outlet channel;

when the centrifugal fan is reversely arranged, the centrifugal fan is arranged above the motor bracket and below the second isolation cylinder; the upper surface of the second top plate is covered at the upper end of the evaporator, and the second isolation cylinder extends upwards; for forming a negative pressure zone within the heat exchange space;

an air outlet channel is formed on the inner side of the second isolation cylinder; an air inlet channel is formed between the outer side of the second isolation cylinder and the volute; the evaporator is positioned in the air inlet channel.

Compared with the prior art, the utility model has the advantages that: through install the first position at the car as a house roof with overhead interior unit, independent outer unit installs the second position at the car as a house, overcome current car as a house overhead air conditioning system and concentrate in a casing with evaporator system, condenser system, compressor, fan etc. and concentrate the roof focus bearing, vibration noise big technical problem in same position that the same position of roof caused of installation in the roof. The independent outer unit is further arranged at other positions of the motor home, so that the influence of noise of a condensing assembly, particularly a compressor and a condensing fan, on passengers in the motor home can be reduced.

The key technical improvement for realizing the beneficial effects is that the spiral case of the overhead internal unit and the first shell form heat exchange space, the evaporation fan and the evaporator cover are arranged in the spiral case, and the rest evaporation components are further all covered in the first shell. Meanwhile, the second shell of the independent outer unit is used for covering all the condensing fan, the condenser and the compressor, so that the separation of the overhead inner unit and the independent outer unit is realized, and the overhead inner unit and the independent outer unit are independently installed at different positions of a motor home.

It is worth mentioning that the part of the evaporation assembly reserved in the overhead internal unit is the necessary part for realizing the heat exchange of the air conditioner of the motor home, so that the weight of the overhead internal unit can be the lightest, and the volume of the first shell is the smallest, thereby the split overhead motor home air conditioning system provided by the utility model is suitable for various motor home types such as small-sized pulling motor home, movable wooden house, self-propelled motor home and the like.

Further, because the evaporation components are all arranged in the first shell outside the roof, the inside of the roof, namely the inner space of the caravan, is only provided with the panel component, so that the noise of the air conditioner in the car is further reduced, and the riding comfort is further improved.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is a schematic diagram of a motor home with a split overhead motor home air conditioning system installed;

fig. 2 is a schematic diagram II of a motor home with a split overhead motor home air conditioning system;

FIG. 3 is a schematic diagram of a first independent external unit;

FIG. 4 is a schematic diagram of a second embodiment of an independent outer unit;

FIG. 5 is a schematic diagram of a first configuration of an overhead inner unit;

FIG. 6 is a second schematic structural view of the overhead inner unit;

FIG. 7 is a schematic diagram of a top mounted inner unit employing an axial fan;

FIG. 8 is a schematic diagram of a top mounted inner unit employing a centrifugal fan;

FIG. 9 is an exploded view of an overhead inner unit employing an axial fan;

FIG. 10 is a cross-sectional view of an overhead inner unit axial fan employing an axial fan when the axial fan is installed in a forward direction;

FIG. 11 is a cross-sectional view of an overhead inner unit axial fan with an axial fan installed in reverse;

FIG. 12 is an exploded view of an overhead inner assembly employing a centrifugal fan;

FIG. 13 is a cross-sectional view of an overhead inner set axial fan employing a centrifugal fan when installed in a forward direction;

fig. 14 is a cross-sectional view of an axial fan of an overhead inner unit using a centrifugal fan when installed reversely.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. While the terms "first" and "second" are used for descriptive purposes only and not for purposes of limitation, there is no other directional meaning.

As shown in fig. 1 and fig. 2, the caravan 200 and the split overhead caravan air conditioning system 100 installed on the caravan 200 according to the present embodiment include an overhead inner unit 101 and an independent outer unit 102. Wherein, the overhead inner unit 101 is installed at a first position D1 of the roof of the caravan 200, and the independent outer unit 102 is installed at a second position D2 of the caravan 200. A connecting pipeline 103 for passing the refrigerant is arranged between the overhead inner unit 101 and the independent outer unit 102.

The second position D2 includes other positions on the roof of the caravan 200, the body of the caravan 200, or the bottom of the caravan 200, which are different from the first position D1. For example, as shown in fig. 1, the overhead inner unit 101 is installed at a first position D1 of the roof of the caravan 200 near the vehicle head, and the independent outer unit 102 is installed at a second position D2 of the roof of the caravan 200 near the vehicle tail. As shown in fig. 2, the overhead inner unit 101 is installed at a first position D1 of the roof of the caravan 200 near the head of the car, and the independent outer unit 102 is installed at a second position D2 of the bottom of the caravan 200 near the tail of the car.

As shown in fig. 3 and 4, the independent external unit 102 includes a condensing unit 40, and the condensing unit 40 includes a second housing 32, a condensing fan 41, a condenser 42, and a compressor 43, wherein the condensing fan 41, the condenser 42, and the compressor 43 are housed by the second housing 32.

Specifically, the second housing 32 includes a second bottom case 32a mounted at the second position D2 and a second top case 32b that covers the second bottom case 32 a. The condensing fan 41, the condenser 42, and the compressor 43 are mounted on the second bottom case 32a, the compressor 43 is disposed at a side of the condensing fan 41, and the condenser 42 is enclosed around the condensing fan 41 and the compressor 43. The second top case 32b is covered on the second bottom case 32a to cover the condensing fan 41, the condenser 42, and the compressor 43 inside the second case 32. The condensing fan 41 may be an axial fan or a centrifugal fan.

As shown in fig. 5 and 6, the overhead inner assembly 101 includes a panel assembly 10 mounted on the inside of the roof and an evaporation assembly 20 mounted on the outside of the roof. The panel assembly 10 may be of a two-sided air-out type, a four-sided air-out type, or a two-sided air-out and four-sided air-out flexible configuration type, or may be of an air duct air-out type, and therefore, in the present utility model, the panel assembly 10 is provided with at least one air inlet 11 and at least one air outlet 12, and the specific number and arrangement positions of the air inlets 11 and the air outlets 12 are flexible, so as to be suitable for different types of motor home.

In this embodiment, the top-mounted inner unit 101 may be an axial fan or a centrifugal fan, and the axial fan and the centrifugal fan may be mounted in a forward direction or a reverse direction.

As shown in fig. 7 and fig. 9 to 11, an overhead internal unit 101 using an axial fan is shown:

the evaporation assembly 20 comprises a first housing 31, a motor support 21, a partition 22, a volute 23, an evaporation fan 24 and an evaporator 25, wherein the evaporation fan 24 is an axial fan 24. The first housing 31 houses the motor bracket 21, the partition 22, the scroll 23, the evaporation fan 24, and the evaporator 25 therein.

The first housing 31 includes a first bottom case 31a installed at the outside of the roof and a first top case 31b covering the first bottom case 31a, the scroll casing 23 is covered on the first bottom case 31a to form a heat exchange space P between the scroll casing 23 and the first bottom case 31a, and the motor bracket 21, the partition 22, the scroll casing 23, the axial flow fan 24, and the evaporator 25 are disposed in the heat exchange space P. The first top case 31b is provided outside the scroll casing 23 to cover the motor bracket 21, the partition 22, the scroll casing 23, the axial flow fan 24, and the evaporator 25 inside the first case 31.

An axial flow fan 24 is mounted on the motor bracket 21 for forming a pressure zone within the heat exchange space P to allow air to enter and exit the heat exchange space P through the panel assembly 10. A partition plate 22 is provided in the scroll case 23 to divide the heat exchange space P into an inlet air passage P1 and an outlet air passage P2. The evaporator 25 is located in the air inlet path P1 or the air outlet path P2, and is used for performing heat exchange with the air entering the heat exchange space P.

Specifically, as shown in fig. 9, the motor bracket 21 includes a first top plate S1, a fan port K is formed in the first top plate S1, and an axial fan 24 is installed below the fan port K. The partition plate 22 comprises a first isolation cylinder T1, the axial flow fan 24 is positioned in the first isolation cylinder T1, the evaporator 25 is arranged on the periphery of the first isolation cylinder T1 in a surrounding mode, and the first top plate S1 is arranged at the upper end of the evaporator 25 in a covering mode.

As shown in fig. 10, when the axial fan 24 is installed in the forward direction, a positive pressure region can be formed in the heat exchange space P during the start-up of the axial fan, the air under the panel assembly 10 enters the heat exchange space P through the air inlet 11, passes through the inner side of the first isolation cylinder T1, the axial fan 24, the fan opening K, and the upper side of the first top plate S1 in sequence under the action of the axial fan 24, bypasses the first top plate S1 to enter between the outer side of the first isolation cylinder T1 and the volute 23, exchanges heat with the evaporator 25, and returns to the lower side of the panel assembly 10 through the air outlet 12 of the panel assembly 10, thereby completing the heat exchange between the air in the caravan 200 and the evaporator 25.

Thus, the air inlet channel P1 is formed inside the first isolation cylinder T1, the fan port K, and above the first top plate S1, the air outlet channel P2 is formed between the outside of the first isolation cylinder T1 and the volute 23, and the evaporator 25 is located in the air outlet channel P2.

As shown in fig. 11, when the axial fan 24 is installed reversely, a negative pressure area can be formed in the heat exchange space P during starting, air below the panel assembly 10 enters the heat exchange space P through the air inlet 11, passes through the first top plate S1 to enter between the outer side of the first isolation cylinder T1 and the volute 23 under the action of the axial fan 24, exchanges heat with the evaporator 25, bypasses the first top plate S1 to enter above the first top plate S1, passes through the fan port K, the axial fan 24 and the inner side of the first isolation cylinder T1 in sequence, and returns to the lower side of the panel assembly 10 through the air outlet 12 of the panel assembly 10 again, thereby completing heat exchange between the air in the caravan 200 and the evaporator 25.

Thus, an air outlet channel P2 is formed inside the first isolation cylinder T1, above the fan port K and the first top plate S1, an air inlet channel P1 is formed between the outside of the first isolation cylinder T1 and the volute 23, and the evaporator 25 is located in the air inlet channel P1.

As shown in fig. 8, 12 to 14, an overhead internal unit 101' using a centrifugal fan:

the evaporation assembly 20' likewise comprises a first housing 31', a motor mount 21', a partition 22', a scroll 23', an evaporation fan 24', and an evaporator 25', wherein the evaporation fan 24' is a centrifugal fan 24'. The first housing 31 'houses the motor bracket 21', the partition 22', the scroll 23', the evaporation fan 24', and the evaporator 25' therein.

The first housing 31' includes a first bottom case 31a ' installed at the outside of the vehicle roof and a first top case 31b ' covering the first bottom case 31a ', the scroll 23' is covered on the first bottom case 31a ' to form a heat exchange space P ' between the scroll 23' and the first bottom case 31a ', and the motor bracket 21', the partition 22', the scroll 23', the centrifugal fan 24', and the evaporator 25' are disposed in the heat exchange space P '. The first top case 31b 'is provided to cover the outside of the scroll casing 23' to cover the motor bracket 21', the partition 22', the scroll casing 23', the centrifugal fan 24', and the evaporator 25 'inside the first case 31'.

A centrifugal fan 24' is mounted on the motor bracket 21' for forming a pressure region in the heat exchange space P ' to allow air to pass into and out of the heat exchange space P ' through the panel assembly 10 '. A partition plate 22' is provided in the scroll casing 23' to divide the heat exchange space P ' into an inlet air passage P1' and an outlet air passage P2'. The evaporator 25 'is located in the air inlet path P1' or the air outlet path P2 'for heat exchanging with the air introduced into the heat exchanging space P'.

Specifically, as shown in fig. 12, the partition 22' includes a second top plate S2, and a second isolation cylinder T2 is provided in the middle of the second top plate S2.

As shown in fig. 13, when the centrifugal fan 24' is mounted in the forward direction, the centrifugal fan 24' is mounted below the motor bracket 21' above the second isolation cylinder T2, the lower surface of the second top plate S2 is covered on the upper end of the evaporator 25', and the second isolation cylinder T2 extends downward into the interior of the evaporator 25 '.

When the centrifugal fan 24 'is started, a positive pressure zone can be formed in the heat exchange space P', air below the panel assembly 10 'enters the heat exchange space P' through the air inlet 11', passes through the inner side of the second isolation cylinder T2 and the upper side of the second top plate S1 in sequence under the action of the centrifugal fan 24', bypasses the second top plate S1 to enter a space between the outer side of the second isolation cylinder T2 and the volute 23', exchanges heat with the evaporator 25', and returns to the lower side of the panel assembly 10 'through the air outlet 12' of the panel assembly 10', so that the heat exchange between the air in the motor home 200 and the evaporator 25' is completed.

Thus, an air inlet channel P1' is formed inside the second isolation cylinder T2 and above the second top plate S1, an air outlet channel P2' is formed between the outside of the second isolation cylinder T2 and the volute 23', and the evaporator 25' is located in the air outlet channel P2'.

As shown in fig. 14, when the centrifugal fan 24 'is reversely installed, the centrifugal fan 24' is installed above the motor bracket 21 'and above the second separation cylinder T2, the upper surface of the second top plate S2 is covered on the upper end of the evaporator 25', and the second separation cylinder T2 extends upward.

When the centrifugal fan 24 'is started, a negative pressure area can be formed in the heat exchange space P', air below the panel assembly 10 'enters the heat exchange space P' through the air inlet 11', and after heat exchange with the evaporator 25' under the action of the centrifugal fan 24', the air enters the inner side of the second isolation cylinder T2 to return to the lower side of the panel assembly 10' from the air outlet 12 'of the panel assembly 10' through the space between the outer side of the second isolation cylinder T2 and the volute 23', so that heat exchange between the air in the caravan 200 and the evaporator 25' is completed.

Thus, an air outlet path P2' is formed inside the second isolation cylinder T2, an air inlet path P1' is formed between the outside of the second isolation cylinder T2 and the scroll 23', and the evaporator 25' is located in the air inlet path P1'.

In the present embodiment, the evaporator 25 or 25' has a four-sided surrounding shape, and in other embodiments, the evaporator may be provided in sections in any of a U-shape, an L-shape, a double L-shape, and one to four flat plates.

According to the split type overhead motor home air conditioning system 100 provided by the utility model, the overhead inner unit 101 is arranged at the first position D1 of the roof of the motor home 200, and the independent outer unit 102 is arranged at the second position D2 of the motor home 200, so that the technical problems of concentrated load bearing and high vibration noise in the same position of the roof caused by concentrating an evaporator system, a condenser system, a compressor, a fan and the like in one shell and concentrating and arranging the evaporator system, the condenser system, the compressor, the fan and the like in the same position of the roof in the conventional motor home overhead air conditioning system are solved. Further mounting the independent outer train 102 in other locations of the caravan 200 can reduce the impact of noise of the condensing components, particularly the compressor and condensing fan, on passengers within the caravan.

The key technical improvement for achieving the beneficial effects is that the heat exchange space P or P 'is formed by the volute 23 or 23' of the overhead inner unit 101 and the first shell 31 or 31', the evaporation fan 24 or 24' and the evaporator 25 or 25 'are covered in the volute 23 or 23', and the rest of the evaporation assemblies 20 or 20 'are further covered in the first shell 31 or 31'. Meanwhile, the second shell 32 of the independent outer unit 102 covers the condensing fan 41, the condenser 42 and the compressor 43, so that the separation of the overhead inner unit 101 and the independent outer unit 102 is realized, and the overhead inner unit 101 and the independent outer unit 102 are independently installed at different positions of the caravan 200.

It should be noted that, the components of the evaporating assembly 20 or 20 'reserved in the overhead internal unit 101 are necessary components for realizing the heat exchange of the air conditioner of the caravan, so that the overhead internal unit 101 can be realized to have the lightest weight and the first shell 31 or 31' has the smallest volume, and the split overhead caravan air conditioning system 100 provided by the utility model can be suitable for various caravans such as small-sized trailer caravans, movable wooden houses, self-propelled caravans and the like.

Further, since the evaporation assemblies 20 or 20 'are disposed in the first housing 31 or 31' on the outside of the roof, the inside of the roof, i.e., the interior space of the car as a house 200, has only the panel assembly 10, so that the air conditioning noise in the car is further reduced and the riding comfort is further improved.

The split type overhead motor home air conditioning system and the overhead internal unit provided by the utility model are introduced, and specific examples are applied to illustrate the principle and the implementation mode of the utility model, and the description of the examples is only used for helping to understand the utility model and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (12)

1. Split type overhead car as a house air conditioning system, its characterized in that:

comprises an overhead inner unit and an independent outer unit; the overhead internal unit comprises a panel assembly arranged on the inner side of the vehicle roof and an evaporation assembly arranged on the outer side of the vehicle roof; the independent external unit comprises a condensation component;

the panel assembly is provided with at least one air inlet and at least one air outlet;

the evaporation assembly comprises a first shell, a volute, an evaporation fan and an evaporator; the first shell covers the volute, the evaporation fan and the evaporator;

the volute cover is arranged in the first shell so as to form a heat exchange space between the volute and the first shell; the evaporation fan and the evaporator are arranged in the heat exchange space;

the evaporating fan is used for forming a pressure area in the heat exchange space so as to enable air to enter and exit the heat exchange space through the panel assembly; the evaporator is used for performing heat exchange with air entering the heat exchange space;

the condensing assembly comprises a second shell, a condensing fan, a condenser and a compressor; the second shell is provided with the condensing fan, the condenser and the compressor;

the overhead inner unit is used for being installed at a first position of a roof of the caravan, and the independent outer unit is used for being installed at a second position of the caravan.

2. The split overhead motor home air conditioning system of claim 1, wherein:

the second location includes a different roof other location than the first location, a body of a caravan, or a bottom of a caravan.

3. The split overhead motor home air conditioning system of claim 1, wherein:

the evaporating fan is an axial flow fan or a centrifugal fan;

the condensing fan is an axial flow fan or a centrifugal fan.

4. The split overhead motor home air conditioning system of claim 1, wherein:

the evaporator can be any one of four-side surrounding square shapes, U shapes, L shapes, double L shapes and one to four flat plates.

5. The split overhead motor home air conditioning system of claim 1, wherein:

the panel assembly can be any one of a two-sided air-out type, a four-sided air-out type and an air duct air-out type, or a flexible configuration type of two-sided air-out and four-sided air-out.

6. The split overhead motor home air conditioning system of claim 1, wherein:

the evaporation assembly further comprises a motor bracket and a partition plate;

the first shell covers the motor bracket, the partition board, the volute, the evaporation fan and the evaporator;

the evaporating fan is arranged on the motor bracket;

the partition board is arranged in the volute to divide the heat exchange space into an air inlet channel and an air outlet channel;

when the evaporation fan is positively arranged, a positive pressure zone is formed in the heat exchange space, an air inlet channel is formed at the inner side of the partition plate, and an air outlet channel is formed between the outer side of the partition plate and the volute; the evaporator is positioned in the air inlet channel;

when the evaporation fan is reversely arranged, a negative pressure area is formed in the heat exchange space, an air outlet channel is formed at the inner side of the partition plate, and an air inlet channel is formed between the outer side of the partition plate and the volute; the evaporator is located in the air outlet channel.

7. The split overhead motor home air conditioning system of claim 1, wherein:

the second shell comprises a second bottom shell arranged at the second position and a second top shell which is combined with the second bottom shell cover;

the condensing fan, the condenser and the compressor are mounted on the second bottom case; the compressor is arranged beside the condensing fan; the condenser is arranged around the condensing fan and the compressor in a surrounding way;

the second top cover is provided on the second bottom case to house the condensing fan, the condenser, and the compressor therein.

8. The split overhead motor home air conditioning system of claim 1, wherein:

and a connecting pipeline for passing through a refrigerant is arranged between the overhead inner unit and the independent outer unit.

9. Set in overhead, its characterized in that:

comprises a panel component arranged on the inner side of the vehicle roof and an evaporation component arranged on the outer side of the vehicle roof;

the panel assembly is provided with at least one air inlet and at least one air outlet;

the evaporation assembly comprises a first shell, a motor bracket, a partition board, a volute, an evaporation fan and an evaporator;

the first shell covers the motor bracket, the partition board, the volute, the evaporation fan and the evaporator;

the volute cover is arranged in the first shell so as to form a heat exchange space between the volute and the first shell; the motor support, the partition plate, the volute, the evaporating fan and the evaporator are arranged in the heat exchange space;

the evaporating fan is used for forming a pressure area in the heat exchange space so as to enable air to enter and exit the heat exchange space through the panel assembly; the evaporator is used for performing heat exchange with air entering the heat exchange space;

the evaporating fan is arranged on the motor bracket;

the partition board is arranged in the volute to divide the heat exchange space into an air inlet channel and an air outlet channel; the evaporator is positioned in the air inlet channel or the air outlet channel.

10. The overhead internal unit of claim 9, wherein:

the first shell comprises a first bottom shell arranged on the outer side of the vehicle roof and a first top shell combined with the first bottom shell cover;

the volute cover is arranged on the first bottom shell so as to form a heat exchange space between the volute and the first bottom shell;

the first top shell cover is arranged outside the volute casing so as to cover the motor support, the partition board, the volute casing, the evaporation fan and the evaporator.

11. The overhead internal unit of claim 9, wherein:

the evaporation fan is an axial flow fan;

the motor bracket comprises a first top plate, a fan port is formed in the first top plate, and the axial flow fan is arranged below the fan port;

the partition plate comprises a first isolation cylinder; the axial flow fan is positioned in the first isolation cylinder, and the evaporator is arranged around the periphery of the first isolation cylinder; the first top plate cover is arranged at the upper end of the evaporator;

when the axial flow fan is positively arranged, a positive pressure area is formed in the heat exchange space, and an air inlet channel is formed on the inner side of the first isolation cylinder, the fan opening and the upper part of the first top plate; an air outlet channel is formed between the outer side of the first isolation cylinder and the volute; the evaporator is positioned in the air outlet channel;

when the axial flow fan is reversely arranged, a negative pressure area is formed in the heat exchange space, and an air outlet channel is formed on the inner side of the first isolation cylinder, the fan opening and the upper part of the first top plate; an air inlet channel is formed between the outer side of the first isolation cylinder and the volute; the evaporator is positioned in the air inlet channel.

12. The overhead internal unit of claim 9, wherein:

the evaporating fan is a centrifugal fan;

the partition plate comprises a second top plate, and a second isolation cylinder is arranged in the middle of the second top plate;

when the centrifugal fan is installed in the forward direction, the centrifugal fan is installed below the motor bracket and above the second isolation cylinder; the lower surface of the second top plate is covered at the upper end of the evaporator, and the second isolation cylinder extends downwards into the evaporator; for creating a positive pressure zone within the heat exchange space;

forming an air inlet channel on the inner side of the second isolation cylinder and above the second top plate; an air outlet channel is formed between the outer side of the second isolation cylinder and the volute; the evaporator is positioned in the air outlet channel;

when the centrifugal fan is reversely arranged, the centrifugal fan is arranged above the motor bracket and below the second isolation cylinder; the upper surface of the second top plate is covered at the upper end of the evaporator, and the second isolation cylinder extends upwards; for forming a negative pressure zone within the heat exchange space;

an air outlet channel is formed on the inner side of the second isolation cylinder; an air inlet channel is formed between the outer side of the second isolation cylinder and the volute; the evaporator is positioned in the air inlet channel.