ES2327140T3 - OUTDOOR UNIT FOR A PARTY TYPE AIR CONDITIONER. - Google Patents

Abstract

The present invention discloses a front suction/discharge type outdoor unit for a split type air- conditioner which is installed in an opening space of an outer wall of a building, for sucking outdoor air from the front surface, exchanging heat and discharging the heat-exchanged air. A pair of sirocco fans (26, 26') having a relatively large ventilation amount are used to send the outdoor air to condensers, and stable high efficiency BLDC motors (28, 28') are used to drive the sirocco fans. Even if the air is sucked or discharged to/from a restricted space, ventilation amount and efficiency can be increased to improve cooling capability and reduce abnormal noises.

Description

Outdoor unit for an air conditioner Match type

       \ global \ parskip0.900000 \ baselineskip
    

The present invention relates to a unit exterior for a split type air conditioner ("split") that can maximize cooling capacity efficiently increasing the amount of ventilation, although the large outdoor unit be installed inside a opening of an exterior wall of a building.

Background of the invention

In general, an air conditioner will defined as split type air conditioner when the unit indoor and outdoor unit are divided and installed individually in an interior space and an exterior space, and as a monobloc air conditioner when the indoor unit and The outdoor unit are combined into a single device and installed through a window or wall. Unit size indoor and outdoor unit increases with the ability to cooling or heating and in the outdoor unit they are generated important vibrations due to the operation of the compressor of said unit. Therefore, type air conditioners match have been much more popularly used than those monobloc air conditioners.

The split type air conditioner it comprises an indoor unit, which is installed inside, to exchange heat between low-pressure low-pressure gas refrigerants temperature and air, and supply hot or cold air to the air-conditioned space, and the outdoor unit, installed in the outside is used to compress, condense and expand the refrigerants to facilitate heat exchange in the unit inside. The indoor unit and the outdoor unit are located coupled to each other by refrigerant tubes.

In this case, the indoor unit comprises a inner shell that has a suction opening and a ejection opening to suck or expel air inside of a room, and an evaporator installed inside the inner frame, to exchange heat between compressed gaseous refrigerants at low temperature and air, and an indoor fan and an engine installed on one side of the evaporator, to supply air inside the evaporator so you can expel cold air into space inside.

In addition, the outdoor unit comprises a frame exterior that has a suction opening and an opening of expulsion to suck or expel air outside, a compressor installed inside the outer shell for compress the evaporant preceding refrigerants to high pressure and high temperature gaseous refrigerants, a condenser to condense refrigerants from compressor to liquid refrigerants mesothermal tablets by exchanging heat between refrigerants and air exterior, expansion means such as a capillary tube or a electronic expansion valve to decompress the refrigerants from the condenser to gaseous refrigerants a low pressure and low temperature and an outdoor fan, of the type axial fan, and a motor installed on one side of the condenser to supply air from outside to the condenser. He Motor is a three phase or single phase current induction motor. In the induction motor, when an alternating current is applied to a stator installed inside a housing to rotate a shaft and a rotor in the middle part of the stator, a rotating magnetic field that rotates the rotor.

Normally, the suction openings are arranged on three sides of the outer frame and the opening of expulsion is located on the top surface of it to Improve ventilation efficiency. Therefore, when it works the outside fan, the air sucked to the three sides of the outer shell, is used in heat exchange and is ejects through the upper surface of the frame.

In this case, the compressor, the condenser, the expansion means and the evaporator are coupled to each other using the refrigerant tubes, so that the refrigerants can circulate to be sequentially compressed, condensed, expanded and evaporated.

However, outdoor air units Conventional conditioning are subject to restrictions referred to the installation spaces, due to strict environmental regulations of cities, and demands civilians by noise and heat are increasing. Especially in zones community residential such as large buildings of apartments, outdoor units must be installed in galleries Interiors to improve appearance and reduce noise.

Recently, in residential areas communal such as large apartment buildings, it has installed a type of outdoor unit of air conditioners split type that sucks air through the surface front, exchanges heat and expels the reheated air by the front surface

This type of outdoor unit of Front suction / expulsion is disclosed in the application International Patent WO 2004/076935. This outdoor unit for split type air conditioners comprises a frame installed outside, with a suction unit and a unit of ejection formed individually on the open front surface of the frame. In addition, it comprises a compressor installed inside of the suction unit to compress refrigerants and a condenser installed inside the suction unit to condense the compressed refrigerants in the condenser exchanging heat between the refrigerant and the outside air. The unit according to international patent application WO 2004/076935 it also includes a single fan housing with a single cooling fan installed in it.

       \ global \ parskip1.000000 \ baselineskip
    

Exhibition of the invention Technical problem

However, the outdoor unit of type front suction / ejection for type air conditioner match has a smaller section area than unity External type trilateral suction / expulsion for air conditioner. As a result, the amount of ventilation, deteriorating ventilation efficiency and capacity of refrigeration.

In addition, the outdoor unit of type front suction / ejection for type air conditioner match uses the single phase general induction motor or Three phase to operate the fan. Induction motor It has a low efficiency, lower than between 40 and 50%. Especially because, as the stable torsion zone narrows, The range of the variable rpm zone is reduced. Supposing rpm exceeds the stable torque zone, noise is generated and reduce effectiveness

The present invention is intended to resolve the previous problems An objective of the present invention is in arranging an outdoor unit for an air conditioner of match type that can improve the amount and effectiveness of ventilation using a fan that has a quantity of relatively large ventilation, even if outside air is sucked or ejected from / in a restricted space.

Another objective of the present invention is to in arranging an outdoor unit for an air conditioner of split type that can improve reliability and efficiency operating using a stable high efficiency motor for operate the fan to send air outside.

Another additional objective of the present invention it consists of having an outdoor unit for a conditioner of split type air that is small in size, decreasing the installation space by improving the structure of fan installation to send air to the outside and motor to operate the fan.

A further objective of the present invention it consists of having an outdoor unit for a conditioner of split-type air presenting an installation structure of realistic front suction / ejection type to be incorporated selectively on an exterior wall of a building.

Technical solution

To achieve the objectives of the invention described above, an outdoor unit is provided for a split type air conditioner comprising: a frame installed outside, a suction unit and a unit of ejection formed individually on the open front surface of the frame; a compressor installed inside the unit suction of the frame to compress refrigerants; a condenser installed inside the frame suction unit for condense the compressed refrigerants in the compressor exchanging heat between refrigerants and outside air; a pair of fan housings that have suction openings near the frame ejection unit and ejection openings near the frame ejection unit, incorporated in the frame so that the ejection openings can enter contact with the ejection unit and guide the address of expulsion of the air used in the heat exchange in the condenser; a pair of siroco fans installed respectively inside the fan housings for suction the outside air through the suction unit of the frame, send the outside air to the condenser and expel the air outside through the frame ejection unit; a pair of motors connected to siroco fans, to drive respectively siroco fans; and a couple of elements of motor support to respectively fix the motors to the fan housings

Preferably, the front surface of the frame is divided into a top and a part bottom, the suction unit is formed at the bottom of the frame and ejection unit is formed at the top of the frame. The ejection unit of the frame is divided into two sides, on which a first and a second unit of ejection, and fan housings are installed to enter in contact with the first and second ejection units respectively.

More preferably, the outdoor unit also comprises a suction grille and an ejection grille installed in the suction unit and the ejection unit of the framework, to prevent the entry of foreign substances into the frame.

Preferably, the suction openings are formed on the upper and lower surfaces of the pair of housings fan so that air can be sucked into axial directions of each siroco fan, and the openings of ejection connected to the first and second units of ejection are arranged on the front surfaces of the pair of fan housings so that air can be expelled in the circumferential directions of each siroco fan.

Preferably, the pair of siroco fans rotate in opposite directions to avoid air interference sent by each siroco fan, and the pair of housings of fan are arranged facing each other to guide the air expelled in opposite directions.

More preferably, the pair of fans Siroco turns in the same direction and the pair of housings are installed in the same direction to guide the air expelled in the same direction.

Preferably, the pair of siroco fans they turn to send air in the opposite direction to the air sent by a pair of siroco fans from an adjacent outdoor unit, to avoid interference with the air sent by the pair of siroco fans of the adjacent outdoor unit.

Preferably, the torque is fixedly installed on the upper suction openings of each ventilation housing that have a suction flow relatively small, and, more preferably, the torque They are BLDC motors.

More preferably, the BLDC engine comprises: a motor rotation axis connected to the siroco fan for transmit power; a stator that presents the axis of rotation of the motor installed in its center so that it can rotate and that is fixedly installed on the support element of the motor, a coil wound around the stator core; a rotor installed in the outer circumference of the stator, connected to the axis of rotation of the motor and that rotates with the axis of motor rotation; a permanent magnet attached to the rotor to make rotate the rotor and the motor rotation axis by means of a electromagnetic force with the stator; and a sensor to detect the position of the rotor and send a current sequentially to the stator coil.

Preferably, the support element of the rotor comprises: a cylindrical shaft support unit for hold the axis of rotation of the motor that must be rotated by a bearing; a stator support unit incorporated in the upper end of the axle support unit, on which it the stator is fixedly mounted; and a plurality of fixed units protruding from the circumference of the unit of Stator support, in radial direction, at regular intervals, and fixed by screws on the upper surface of the housing from the fan.

More preferably, in the support element of the motor, the stator core is fixed by screws to the top of the support unit of the stator

More preferably, in the support element of the motor, intensity reinforcement ribs are formed between the shaft support unit, the stator support unit and the fixed units to reinforce the intensity of the units fixed.

More preferably, in the support element of the engine, the intermediate parts of the fixed units are they are inclined upward in the radial direction of so that part of the BLDC motor can be installed inside the fan housing

More preferably, in the support element of the motor, three fixed units are formed, at intervals preset, on the circumferences of the support unit of the shaft and the stator support unit.

Preferably, the capacitor is shaped of "U" so that it protrudes towards the suction unit of the frame, and, more preferably, the pair of capacitors is they are installed so that they overlap in the parts upper and lower interiors of the suction unit frame.

Preferably, the outdoor unit also comprises a grid frame to divide an opening space of an exterior wall of a building in a suction zone corresponding to the suction unit of the frame and an area of expulsion corresponding to the ejection unit of the frame, for that the outdoor unit can be installed in the space of opening.

More preferably, a plurality overlaps of grid sheets at pre-established intervals in the area of suction and in the ejection area of the grid frame for control the direction of air suction and the direction of air expulsion.

       \ vskip1.000000 \ baselineskip
    

Brief description of the drawings

The present invention will become better than manifest through joint consideration of the drawings attached, which are incorporated by way of illustration only and by therefore they do not imply any limitation of the present invention, and in which:

Figure 1 is a perspective view that represents an outdoor unit of a type air conditioner split according to the present invention;

Figure 2 is a front view representing the outdoor unit of the split type air conditioner according to the present invention;

Figure 3 is a perspective view with a partial cut representing a unit mounting structure exterior of the split type air conditioner incorporated in a wall according to the present invention;

Figure 4 is a perspective view that represents the disassembly of the assembly structure of the installation of figure 3;

Figure 5 is a perspective view that represents the disassembly of the mounted state of a unit of heat exchange and a unit ventilation unit outside of the split type air conditioner according to the present invention;

Figure 6 is a perspective view that represents the disassembly of the heat exchange unit of the outdoor unit of the split type air conditioner according to the present invention;

Figure 7 is a perspective view that represents the disassembly of the unit's ventilation unit outside of the split type air conditioner according to the present invention;

Figure 8 is a sectioned front view that represents a ventilation device applied to the unit outside of the split type air conditioner according to the present invention; Y

Figure 9 is a perspective view detailed representing an engine support element of the ventilation device applied to the outdoor unit of the split type air conditioner according to the present invention.

Best way to practice the invention

The following is described in detail. an outdoor unit for a split type air conditioner according to the preferred embodiment of the present invention, considered in conjunction with the attached drawings.

Figures 1 and 2 show a view in perspective and a front view representing the outdoor unit of the split type air conditioner according to the present invention.

Referring to figures 1 and 2, the outdoor unit for split type air conditioner it comprises a heat exchange unit 10 to suction the outside air and use it for heat exchange, and a ventilation unit 20 to send air from outside which must be sucked or expelled for heat exchange in the heat exchange unit 10.

In more detail, the suction unit and the ejection unit for sucking and expelling air are formed individually in the heat exchange unit 10 and the unit of ventilation 20, presenting an exterior appearance formed by upper and lower frames 12 and 22 with their front surfaces open. Inside the lower frame 12 is installed a refrigeration cycle excluding the evaporator (no shown), ie compressors (not shown), capacitors 14 and an electronic expansion valve (not shown). The fans siroco 26 and motors 28 to drive siroco 26 fans are installed inside a pair of housings 24 in the upper part of the frame 22 to send the air. On one side of the  capacitors 14 a control box (not shown) has been arranged to control the aforementioned components.

The outdoor unit is connected to a unit interior (not shown) installed inside the building a through coolant tubes. The indoor unit comprises a evaporator and an indoor fan (not shown) to send air inside. The refrigerants are compressed, condensed, expanded and evaporate through the compressors, the condensers 14, the electronic expansion valve and evaporator and exchange heat with the air inside sent to the evaporator to cool the indoor air

The outdoor unit can be installed in a space that presents its four open sides. In the type of front suction / ejection, the outdoor unit can be installed in a partially open exterior wall of a residential building or commercial.

Figure 3 is a perspective view partially in section representing a mounting structure of the outdoor unit for the split type air conditioner incorporated into a wall according to the present invention, and figure 4 it is a perspective view illustrating the disassembly of the Mounting structure of an installation of Figure 3.

Next, it is described in greater detail and referring to figures 3 and 4 the structure to mount the outdoor unit in an outer wall W of a building. It installs an external frame 100 fixedly on an inner wall of a rectangular space formed in the outer wall. Inside of external frame 100, an internal frame 110 is fixedly installed. If necessary, internal 110 and external 100 frames can Form a single body.

A central insulator 130 is installed that crosses the central part to divide the inner area of the inner frame 110 in an IN suction zone and an OUT ejection zone in the direction ascending / descending In each zone a plurality of 120 grid sheets. Air is sucked or expelled through the spaces that remain between the grid sheets 120.

       \ newpage
    

The grid sheets 120 are arranged in horizontal direction with its two ends installed so that they can rotate on the inner surfaces of the inner frame 110. In In this case, the grid sheets 120 are superimposed in the direction vertical with a preset separation, to control the air direction up / down.

In addition, a sealing element S is installed between the internal frame 110 and the outdoor unit to prevent leakage of air and dampen vibration. In a condition in which the heat exchange unit 10 is closely located adhered to the suction zone IN of the internal frame 110 and the ventilation unit 20 is closely adhered to the ejection zone OUT of the internal frame 110, both sides of the lower frame 12 and upper frame 22 are installed so fixed on the internal frame 110 by means of L-shaped supports (no shown).

The outer frame 100, the inner frame 110, the central insulator 130 and grid sheets 120 are designated frame of grid. The outdoor unit adheres closely to the wall inside the opening space of the outer wall W by means of the grid frame.

Figure 5 is a perspective view that represents the disassembly of the assembly state of the unit heat exchange and unit ventilation unit outside of the split type air conditioner according to the present invention

It is described in detail below. the structure of the outdoor unit, with reference to figure 5. The ventilation unit 20 is installed on the unit heat exchange 10. When the upper surface of the heat exchange unit 10, the bottom surface is opened of the ventilation unit 20, so that the unit of heat exchange 10 and the ventilation unit 20 may be connected to each other. On the upper surface of the unit heat exchange 10, is fixedly installed a connection frame C1 to insulate both sides, so that the unit vent 20 can be mounted on top of it. On lower surface of the ventilation unit 20 is located fixedly installed a top connection frame C2 for bear inside components such as carcasses 24, 24 'fan.

Figures 6 and 7 are perspective views that represent the disassembly of the heat exchange unit and the ventilation unit of the outdoor unit of the conditioner split type air according to the present invention. Figure 8 is a front sectional view representing a device of ventilation applied to the outdoor unit of the conditioner split type air according to the present invention, and Figure 9 is a detailed perspective view that represents an element of engine support of the ventilation device applied to the outdoor unit of the split type air conditioner according to the present invention

The following describes in greater detail the structure of the heat exchange unit 10, with reference to Figure 6

The front and top surfaces of the frame lower 12 are omitted and capacitors 14 and compressors 16a, 16b and 16c are mounted on the bottom surface of the frame bottom 12. On top of the front surface of the lower frame 12 a separation element has been installed bottom A1 in the form of a bar to separate the lower frame 12 of the upper frame 22.

The lower connection element C1 is fixed on the upper surface of the lower frame 12 to support the ventilation unit 20 mounted. The connection projections 12a and 12b protrude upward from both sides of the surface upper frame lower 12, so that the ventilation unit 20 can be coupled by screws.

On the lower surface of the lower frame 12 a pair of support elements B are installed. Preferably, on both sides of the support elements B is they form support holes h so that the outdoor unit can get up using a forklift.

Additionally, it can be installed on the front surface of the lower frame 12 a reticulated grid front (not shown) to prevent the entry of foreign substances or the invasion of animals (eg rats).

To improve the cooling capacity with the In order to get a large capacity of the air conditioner, you can form a large capacitor 14. To facilitate the production, two heat exchangers can be connected. In this case, a pair of capacitors are stacked, 14a, 14b, one on other.

In capacitors 14a, 14b, a plurality of coolant tubes curved, and have installed a plurality of cooling fins in the direction vertical. The rectilinear central parts of the capacitors in U-shaped 14a, 14b are arranged inside the surface front of lower frame 12. Compressors 16a, 16b and 16c they are located inside the rectilinear parts, and the box control is located near the bottom surfaces of the rectilinear parts.

Preferably, the plurality of compressors 16a, 16b and 16c are installed to improve the capacity of air conditioner cooling. More preferably, it they use two constant speed compressors 16a and 16b and a 16c inverter compressor to maximize cooling capacity. The operation of compressors 16a, 16b and 16c is controlled by charging.

Compressor speed compressors 16a and 16b they work regardless of load, but operating speed of the inverter compressor 16c is decided in proportion to the load.

The following describes in greater detail the structure of the ventilation unit 20, referring to the Figures 7 and 8.

The front and bottom surfaces of the frame upper 22 are omitted and fan housings 24, 24 ', the 26 and 26 'siroco fan housings and 28, 28' motors are installed inside the upper frame 22. In the part lower than the front surface of the upper frame 22 has installed a rod-shaped separation element A2 for separate the upper frame 22 from the lower frame 12. In the inside the front surface of the upper frame 22 has installed a front separation element A3 to separate the torque of fan housings 24, 24 'on both sides.

The lower connection element C2 is fixed to the lower surface of the upper frame 22 so that the fan housings 24, 24 'can be mounted on it. A once the ventilation unit 20 is mounted on the unit heat exchange 10, the ventilation unit 20 is connected by screws to the projections 12a and 12b of the unit heat exchange 10.

As in the case of the lower frame 12, can be installed additionally on the front surface of the upper frame 22 a front reticulated grid (not shown) to prevent the entry of foreign substances or the invasion of animals (eg rats).

Siroco 26, 26 'fans can incorporated into fan housings 24, 24 '. Up and down, in the axial direction, a pair of suction openings 24_, 24'in, and surfaces front of fan housings 24, 24 'have openings of ejection 24_ {out}, 24 '_ out}, so that the fans siroco 26, 26 'can suck air in the axial directions and Expel air in the circumferential directions. R guides protrude into each of the openings of suction 24_, 24'in to guide the sucked air.

The fan housings 24, 24 'are fixed in the upper frame 22 by means of supports (not shown) that must be placed on both sides of the front separation element A3 in the upper frame 22. The lower suction opening 24_ {in} is connected to the bottom surface of the frame upper 22 and the upper surface of the lower frame 12, and the ejection openings 24_ {out}, 24 'out are connected to the front surface the upper frame 22.

Fan housings 24, 24 'can be installed to guide the air sent by each siroco fan 26, 26 'in opposite directions or in the same direction to avoid interference Although fan housings 24, 24 'of a outdoor unit are installed to guide the air sent by each siroco fan 26, 26 'in one direction, the housings of 24, 24 'fan of the adjacent outdoor unit are installed to guide the air sent by each siroco fan 26, 26 'in the opposite direction.

Preferably, the direction of rotation and the operation of siroco 26, 26 'fans incorporated in fan housings 24, 24 'are determined by the shape of fan housings 24, 24 '.

Siroco 26, 26 'fans are fans axial to suck the air in the axial directions and eject it in the circumferential directions. The fans siroco 26, 26 'that have a large volume of air are suitable for the outdoor unit with large cooling capacity.

The siroco 26, 26 'fans are incorporated in fan housings 24, 24 'in the direction axial ascending / descending to face the openings of suction 24_ in, 24 'in of each of the housings of 24, 24 'fan. The siroco 26, 26 'fans are rotated to send the air to the ejection openings 24_ {out}, 24 'out of each of the fan housings 24, 24' according to the shape and direction of installation of each of the housings of fan 24, 24 '.

As Figure 8 shows, engines 28, 28 'are they are preferably installed near the opening of upper suction 24 'in presenting a suction flow relatively small between suction openings 24_ {in}, 24 'in of fan housings 24, 24'. To reduce the installation space, engines 28, 28 'are located partially located inside the suction openings 24_, 24 'in of fan housings 24, 24'.

In particular, as engines 28, 28 'are used BLDC motors, which do not use a brush but a manual circuit to convert an alternating current into direct current. By not arrange BLDC carbon brush motors, BLDC motors they do not generate sparks when they work, reducing the possibility of a gas explosion, they are stably operated in most of speed and maintain a high efficiency of 70% at 80%

In detail, the BLDC motor 28 comprises a shaft of motor rotation 282 to transmit power to the fan siroco 26, a stator 284, a rotor 286 and permanent magnets 288 to drive the rotation axis of the motor 282 generating a force rotating by mutual electromagnetic force, and a sensor (no shown) to control the current supplied by detecting the rotor position 286.

To reduce resistance to suction flow, BLDC motor 28 is fixedly installed on the element of engine mount 30 near the upper suction opening 24_ {in} of the fan housing 24 which has a flow rate of relatively reduced suction.

The rotation axis of the motor 282 is held on the motor support 30 by means of a ball bearing 289 to rotatably pass through the support element of the motor 30. The end of the rotation axis of the motor 282 is connected to the axial center of the siroco 26 fan by plugged Stator 284 is permanently installed on the engine mount 30 with a preset clearance from the outer circumference of the motor rotation axis 282.

The part of the outer diameter of the rotor 286 it is located on the outer circumference of the stator 284, and the part of the inside diameter of it is installed fixed shape on the axis of rotation 282. Along the upper or lower surface of rotor 286 forms a plurality of ribs in radial direction to reinforce the intensity when a centrifugal force is generated. The plurality of 288 permanent magnets are permanently installed in the part of the outer diameter of the rotor 286 in the direction circumferential, at preset intervals, to generate the mutual electromagnetic force with stator 284. The sensor is fixedly installed near the stator core 284

Therefore, when current is applied sequentially to stator coil 284, rotor 286 rotates thanks to the electromagnetic force existing between the current of the coil and permanent magnets 288. The rotational force of the rotor 286 rotatably drives the siroco fan 26 by means of the motor rotation axis 282.

Engine support elements 30, 30 ' siroco 26, 26 'fans and BLDC 28, 28' motors are installed so that they are kept in fan housings 24, 24 ' respectively. In detail, as shown in Figure 9, the engine support element 30 comprises a cylindrical unit of shaft support 302 to rotatably support the rotation shaft of the motor 282 by means of the ball bearing 289, a unit of stator holder 304 incorporated with the upper end of the shaft support unit 302, stator 284 being fixed thereon, and a plurality of fixed units 306 that protrude from the circumference of the stator support unit 304 in radial direction at preset intervals set with screws near the upper suction opening 24_ in of the fan housing 24.

The cylindrical shaft support unit 302 is shorter than the axis of rotation of the motor 282. The bearing of 289 balls is installed on the upper and lower ends of the shaft support unit 302 to support the shaft of motor rotation 282 so that it can rotate. In the unit of stator support 304 a plurality of grooves are formed or openings 304a and a plurality of screw holes 304h so that stator 284 can be inserted and fixed with screws

Preferably, three fixed units are formed 306 in the circumferences of the shaft support unit 302 and the stator support unit 304 of the motor support element 30 in a range of 120 (to distribute the supported load). Plus preferably to reinforce the intensity of the fixed units 306, a plurality of reinforcement ribs of intensity 308 between the shaft support unit 302, the unit of stator support 304 and fixed units 306 to support the lower parts of the stator support unit 304 and the fixed units 306, and a plurality of ribs of auxiliary intensity booster 309 on upper surfaces of the fixed units 306.

In particular, fixed units 306 protrude of the stator support unit 304 in radial direction. The intermediate parts 306a of the fixed units 306 have a ascending inclination in radial direction. Holes for 306h screws are formed in the horizontal parts of the ends 306b of the fixed units 306. In the support element of the motor 30, the ends 306b of the fixed units 306 are fixed with screws near the upper suction opening 24_ {in} of the fan housing 24.

The following describes the process of assembly and installation of the outdoor unit for the conditioner Split type air. The capacitors 14, the compressors 16a, 16b and 16c and the expansion means are installed in the frame bottom 12, and the control box to control the components above is installed on one side of capacitors 14, forming the heat exchange unit 10.

The pair of siroco 26, 26 'fans and the BLDC motors 28, 28 'are fixed on fan housings 24, 24' by means of the motor support elements 30, 30 'respectively, to form a pair of ventilation devices. The devices ventilation are fixed on the upper frame 22, forming the ventilation unit 20.

The following describes in greater detail the assembly process of the ventilation unit 20. The shaft of rotation of motor 282 of motor BLDC 28 is installed so that can rotate in the shaft support unit 302 of the motor support 30 by ball bearing 289, and stator 284 is fixed with screws to the upper surface of the unit stator support 304 of the motor support element 30, forming the engine assembly. In the engine assembly, when place the siroco fan 26 in the fan housing 24, the motor rotation shaft 282 is connected to the axial center of the siroco 26 fan by plugging, and when fixed units 306 of the motor support member 30 are mounted near the 24_ {in} upper suction opening of fan housing 24, the fixed units 306 are fixed thereto by screws

       \ global \ parskip0.900000 \ baselineskip
    

Therefore, the pair of devices ventilation, including BLDC 28, 28 'engines, is located located on both sides of the upper frame 22, installed so fixed by squares. BLDC 28, 28 'engines are located connected to the control box via cables, and are controlled by said control box.

The lower frame 12, and the upper frame 22 They present their open front surfaces. The element of lower separation A1 and upper separation element A2 are installed to separate the lower frame 12 and the upper frame 22. In particular, the front separation element A3 is installed on the front surface of the upper frame 22 to separate the 24, 24 'fan housings.

The ejection openings 24_ {out}, 24 'formed on the front surfaces of the carcasses of  fan 24, 24 'are closely adhered to the front surface of upper frame 22, to expel air externally directly from each of the housings of 24, 24 'fan.

The lower connection element C1 is installed to cover the upper surface of the lower frame 12, the upper connecting element C2 is installed to stand on the lower surface of upper frame 22, upper frame 22 it is mounted on the lower frame 12 and the mounting projections 12a and 12b of the lower frame 12 are fixed by screws to the upper frame 22. The upper surface of the lower frame 12 and the lower surface of the upper frame 22 are joined between yes.

Therefore, compressors 16a, 16b and 16c, the capacitors 14 and the expansion means of the unit outdoor are connected to the evaporator of the indoor unit by tubes. The operation of compressors 16a, 16b and 16c It is controlled by charging.

The following describes in greater detail the operation of compressors 16a, 16b and 16c. Compressors 16a, 16b and 16c work according to the control box signal generated by the load. The refrigerants are sucked into the indoor unit through compressors 16a, 16b and 16c, the capacitors 14 and the expansion means, and circulate along of the evaporator of said unit. The refrigerants that pass through the evaporator cool the air near it, effecting from this mode cooling operation inside.

When the refrigerants have circulated through the capacitors 14, siroco fans 26, 26 'are driven by BLDC engines 28, 28 'respectively. Therefore the air sucked through the front surface of the lower frame 12 exchanges heat with the refrigerants through the condensers 14 and condenses the refrigerants. The air used in heat exchange is expelled from the front surface of the  upper frame 22 through the siroco 26 fans, 26 '.

On BLDC 28 motor, when current is applied to the stator coil 284, the electromagnetic force is generated mutual between stator 284 and permanent magnets 288. The sensor detects the position of stator 284 and sequentially applies the current to the stator coil 284, generating continuously mutual electromagnetic force between stator 284 and magnets permanent 288. The electromagnetic force spins simultaneously the rotor 286 in which the permanent magnets 288 and the motor rotation shaft 282, for transmit the rotating force to the siroco fan 26.

When the stable torsion zone of the BLDC 28 motor, BLDC 28 motor can operate stably at various rpm, restricting noise and reducing the consumption of Energy.

The siroco 26, 26 'fans that spin BLDC 28, 28 'engines suck air in directions axial. The air that passes through the condensers 14 is sucked mostly by lower suction openings 24_, 24 'in of fan housings 24, 24', partially suctioned by the upper suction openings 24_, 24 'in of fan housings 24, 24', guided by the guides R formed in the vicinity of the openings of suction 24_ in, 24 'in, sucked in the directions axial fans siroco 26, 26 ', ejected in the circumferential directions, guided by the housings of fan 24, 24 'and ejected through the openings of expulsion 24_ {out}, 24 'out of fan housings 24, 24 '.

BLDC engines 28, 28 'are installed near the upper suction openings 24_, 24 'in which they have a relatively low suction flow between suction openings 24_, 24 'in of the housing 24, 24 'fan, minimizing resistance to suction flow. In addition, BLDC 28, 28 'engines operate with stable efficiency to improve the efficiency of ventilation and exchange of hot.

Because next to the BLDC 28, 28 'engines they have installed the two siroco 26, 26 'fans that have a relatively large amount of ventilation, the amount of ventilation can be controlled by loading and can increase the maximum air volume. Also, being both capacitors 14 stacked on top of each other and connected to each other, the Condensation heat exchange can be facilitated to improve  the cooling capacity of the entire cycle of refrigeration.

Although the outdoor unit type suction / ejection for the built-in air conditioner has been described based on the preferred embodiment of the present invention and in the accompanying drawings, it is understood that the The present invention is not limited to these embodiments. preferred, but those skilled in the art can perform various changes and modifications within the scope of this invention according to the appended claims.

       \ global \ parskip1.000000 \ baselineskip
    

Claims (19)

1. Outdoor unit for a conditioner split type air comprising: a frame installed outside, a unit suction (IN) and an ejection unit (OUT) formed individually on the open front surface of the frame; a compressor (16a; 16b; 16c) installed in the inside the frame suction unit, to compress refrigerants; a capacitor (14; 14a; 14b) installed in the inside the frame suction unit, to condense the compressed refrigerants in the compressor by exchanging heat between refrigerants and outside air; characterized in that it comprises a pair of fan housings (24, 24 ') that they have suction openings (24_, 24'in) facing each other to the condenser and in the vicinity thereof, and some openings of ejection (24_ {out}, 24 '{out}) formed on surfaces front of the fan housings (24, 24 ') directly adjacent to the front surface of the upper frame (22) to guide the direction of expulsion of the air used in the exchange  of heat in the condenser; a pair of siroco fans (26, 26 ') installed respectively inside the housings of fan, respectively, to suction outside air to through the suction unit of the frame, to pass the air from the outside the condenser and to expel the air used in the heat exchange through the ejection unit of the frame; a pair of motors (28, 28 ') connected to the siroco fans, to drive the fans respectively sirocco; Y a pair of motor support elements (30, 30 ') to fix the motors to the respective housings of fan. 2. Outdoor unit according to claim 1, in which the frame is divided into a top and a part bottom, the suction unit is formed at the bottom (12) of the frame and the ejection unit is formed in the part upper (22) of the frame. 3. Outdoor unit according to claim 1 or 2, in which the ejection unit (OUT) of the frame is divided on two sides, on both sides a first and second units are formed eject and fan housings are installed in position directly adjacent to the first and second ejection units,  to communicate respectively with the first and second units of expulsion. 4. Outdoor unit according to any of the claims 1 to 3, which also comprises a grid of suction and an ejection grill installed in the unit suction (IN) and in the ejection unit (OUT) of the frame, for prevent the entry of foreign substances into the frame. 5. Outdoor unit according to claim 3, in which the suction openings (24_, 24'in) are formed on the upper and lower surfaces of the pair of housings fan (24, 24 ') so that the air can be sucked in the axial directions of each siroco fan, and the openings of expulsion (24_ {out}, 24 '{out}) expel air in the circumferential directions of each siroco fan (26, 26 '). 6. Outdoor unit according to claim 5, in which the pair of siroco fans (26, 26 ') are arranged to rotate in opposite directions to avoid interference from air expelled by each siroco fan, and the pair of housings fan (24, 24 ') are facing each other to guide the air ejected in the opposite directions. 7. Outdoor unit according to claim 5, in which the pair of siroco fans (26, 26 ') are arranged to rotate in the same direction and the pair of fan housings (24, 24 ') are installed in the same direction to guide the air ejected in the same direction. 8. Outdoor unit according to any of the claims 5 to 7, wherein the torque (28, 28 ') are fixedly installed on the upper suction openings (24_, 24 'in) of each fan housing that features a relatively reduced suction flow. 9. Outdoor unit according to any of the claims 1 to 8, wherein the torque of motors (28, 28 ') are BLDC motors. 10. Outdoor unit according to claim 9, in which the BLDC motor (28, 28 ') comprises: a motor rotation axis (282) connected to the siroco fan (26, 26 ') to transmit power; a stator (284) presenting the axis of rotation of the motor installed in its center so that it can rotate, and fixedly installed on the engine support element (30, 30 '); a coil being wound on the stator core; a rotor (286) installed in the circumference outside of the stator, connected to the motor rotation axis and arranged to rotate with the motor rotation axis: a permanent magnet (288) attached to the rotor, to rotate the rotor and motor rotation axis by means of a electromagnetic force with the stator; Y a sensor to detect the position of the rotor and Send current sequentially to the stator coil. 11. Outdoor unit according to claim 10, wherein the engine support element (30, 30 ') comprises: a cylindrical shaft support unit (302) to support the motor rotation axis so that it can rotate by means of a bearing (289); a stator support unit (304) incorporated with the upper end of the axle support unit,  the stator being fixedly mounted on it: and a plurality of fixed units (306) that protrude from the circumference of the stator support unit in radial direction at pre-established intervals, and fixed to the upper surface of the fan housing (24, 24 ') by screws 12. Outdoor unit according to claim 11, in which, in the engine support element (30, 30 '), the core of the stator (284) is fixed to the top of the stator support unit (304) by screws. 13. Outdoor unit according to claim 11, in which, in the engine support element (30, 30 '), Identity reinforcement ribs are arranged (308; 309) between the axle support unit (302), the support unit of the stator (304) and the fixed units (306) to reinforce the intensity of the units set. 14. Outdoor unit according to claim 13, in which, in the engine support element (30, 30 '), the intermediate parts of the fixed units (306) are inclined in upward direction in the radial direction so that part of the BLDC motor can be installed inside the housing of fan. 15. Outdoor unit according to claim 14, in which, in the motor support element (30, 30 '), they are formed three fixed units (306) on the circumferences of the unit of shaft support (302) and stator support unit (304) in preset intervals. 16. Outdoor unit according to any of the claims 1 to 15, wherein the capacitor (14; 14a; 14b) It has a U shape, with the central straight part of the condenser in U-shape located in the direction of the suction unit of the frame. 17. Outdoor unit according to claim 16, in which a pair of capacitors (14a, 14b) are installed in way they are stacked in the upper inner parts and bottom of the frame suction unit. 18. Outdoor unit according to any of the claims 1 to 17, which also comprises a grid frame (100, 110, 120, 130) to divide an opening space of one external wall of a building in a corresponding suction zone to the suction unit (IN) of the frame and an ejection zone corresponding to the ejection unit (OUT) of the frame, of so that the outdoor unit can be installed inside the opening space 19. Outdoor unit according to claim 18, in which a plurality of grid sheets have been installed, (120) in the suction zone (IN) and in the ejection zone (OUT) of the grid frame at preset intervals, to control the direction of the sucked air and the direction of the expelled air.