WO2015081704A1

WO2015081704A1 - Ceiling-mounted air-conditioner indoor-unit system

Info

Publication number: WO2015081704A1
Application number: PCT/CN2014/082646
Authority: WO
Inventors: 董明珠; 谭建明; 苏玉海; 杜辉; 王成; 雷新建; 周伙喜; 冯汇远; 赵成龙; 旷文琦; 陈泽波; 岳耀标; 林伟雪; 蔡勃; 李子颀; 章迎松; 潘亚前
Original assignee: 珠海格力电器股份有限公司
Priority date: 2013-12-04
Filing date: 2014-07-21
Publication date: 2015-06-11
Also published as: CN104697041A; AU2014360043A1; AU2018250394B2; AU2018250394A1; EP3078917A1; EP3078917A4; CN104697041B; EP3078917B1; ES2837859T3

Abstract

A ceiling-mounted air-conditioner indoor-unit system. An indoor-unit (10) is disposed inside a ceiling (20). The system further comprises: a return air inlet (30), disposed on a side surface of the ceiling (20); and a wind outlet (40), disposed on a bottom surface of the ceiling (20). A closeable return air inlet apparatus (31) is disposed at the return air inlet (30), and a closeable wind outlet apparatus (41) is disposed at the wind outlet (40).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of air conditioning, and in particular to a ceiling type air conditioner internal system. BACKGROUND OF THE INVENTION With the improvement of people's living standards, the requirements for decoration are getting higher and higher, and hidden air conditioners are more and more popular among people. Partial ceiling air conditioners are one type of hidden air conditioners, which is more economical than full ceiling air conditioners. Space, the existing ceiling hidden indoor unit in the existing market generally adopts the air circulation mode of the side return side or the lower side, and the installation height of the unit is about 2.8 meters, so that when the unit is heating, the hot air side is sent, followed by thermal expansion. Principle, hot air floats above the space interior, and hot air is difficult to reach the human activity area. The thermal comfort of the room is poor. Moreover, the tuyere engineering aluminum frame tuyere or the vane plastic tuyere used in the conventional unit cannot be closed, and it is impossible to prevent insects and dust from entering the unit, and the unit reliability is poor. SUMMARY OF THE INVENTION An object of the present invention is to provide a ceiling type air conditioner internal system to solve the technical problem of poor thermal comfort of a conventional unit air supply mode room. In order to achieve the above object, the present invention provides a ceiling type air conditioner internal machine system, wherein the indoor unit is disposed in the ceiling, the system further comprises: an air return port disposed on a side surface of the ceiling; the air outlet is disposed on a bottom surface of the ceiling; A closable air return device is arranged at the tuyere, and a closable air outlet device is arranged at the air outlet. Further, the air outlet device includes an air outlet device and an air guiding portion movably nested in the air outlet device in a vertical direction. Further, the air guiding portion includes a side wall, and a bottom portion of the air guiding portion is formed with a first air outlet. Further, the air guiding portion further includes a second air outlet, which is disposed on the side wall, the second air outlet is closed when the air guiding portion is retracted into the air outlet device, and the second air outlet is extended when the air guiding portion is extended outside the air outlet device The tuyere is open. Further, the sidewall includes two opposite sidewalls disposed opposite to each other and two second sidewalls disposed between the two first sidewalls, and the at least one of the two first sidewalls is disposed on the first sidewall There is a second outlet. Further, the air guiding portion is provided with a first air outlet and a second air outlet that are independent of each other. Further, the first air outlet is provided with a wind guide vane, and the air guide vane is one piece, and the first air outlet can be closed when closed. Further, the first air outlet is provided with a plurality of air guiding blades, and when the plurality of air guiding blades are closed, the first air outlet can be closed. Further, the indoor unit is provided with a cross-flow fan, including a volute and a fan blade, and a volute profile of the volute casing includes: a circular arc segment disposed at an air inlet of the fan; a spiral segment, and The arc segment is smoothly connected and extends toward the air outlet of the fan, and the spiral segment is tangent to the arc segment at the first connection point 8. Further, the volute type line further includes a straight line segment disposed at the air outlet of the cross flow fan and tangential to the spiral line segment at the second connection point A. Further, an evaporator is disposed at the air return opening of the inner chamber of the indoor unit, and the evaporator is detachably disposed in the indoor unit; the air return port of the inner chamber of the indoor unit is configured to be adapted to allow the evaporator to enter and exit the inner chamber of the indoor unit. Further, the indoor unit is provided with a centrifugal fan, and the indoor unit is provided with a V-shaped evaporator matched with the centrifugal fan. Further, a sealing material is disposed at a joint between the indoor unit and the air outlet. The invention has the following beneficial effects: The direction of the air outlet is set to face the ground, so that the hot air can be sent to the lowest place in the room, so that the room has good thermal comfort, the unit size is smaller, space is saved, and more decoration is reserved. Space, to meet diverse needs. In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The invention will now be described in further detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a ceiling-type air conditioner internal system according to the present invention when it is not in operation; FIG. 2 is a schematic view of a first air outlet outlet of a ceiling-type air conditioner internal system according to the present invention; A schematic diagram of the first air outlet and the second air outlet of the ceiling type air conditioner internal system according to the present invention; 4 is a schematic view of the second air outlet of the ceiling type air conditioner system according to the present invention; FIG. 5 is a schematic view of the first air outlet and the second air outlet of the ceiling type air conditioner internal system according to the present invention; Figure 7 is a schematic view of a plurality of air guiding vanes of a ceiling type air conditioner internal system according to the present invention; Fig. 7 is a schematic view of a plurality of air guiding vanes according to the present invention; FIG. 9 is a cross-sectional structural view of an indoor unit of a ceiling type air conditioner internal unit system according to the present invention; and FIG. 10 is a worm of an indoor unit of the ceiling type air conditioner internal unit system according to the present invention; Schematic diagram of the main control features of the shell line. The reference numerals in the drawings are as follows: 10, indoor unit; 11, wind blade; 12, volute type line; 121, arc segment; 122, spiral line segment; 123, straight line segment; 20, ceiling; 30, return air outlet 31, air return device; 40, air outlet; 41, air outlet device; 411, air outlet device; 412, air guiding portion; 4120, side wall; 4121, first air outlet; 4122, second air outlet; , guide vane; 50, sealing material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention are described in detail below with reference to the accompanying drawings. Referring to FIG. 1 to FIG. 10, according to the ceiling type air conditioner internal system of the present invention, the indoor unit 10 is disposed in the ceiling 20, and further includes a return air port 30 disposed on the side of the ceiling, and the air outlet 40 is disposed on the bottom surface of the ceiling 20. The return air outlet 30 is provided with a closable air return device 31, and the air outlet 40 is provided with a closable air outlet device 41. The direction of the air outlet is set to face the ground, so that the hot air can be sent to the lowest place in the room, so that the thermal comfort of the room is good, the width of the ceiling 20 is reduced, space is saved, more decoration space is reserved, and various environments are reserved. Demand. Referring to FIG. 1 to FIG. 5, the most important feature of the indoor unit 10 is the lower air outlet. The air outlet 40 of the indoor unit 10 is connected with the lower surface of the ceiling 20 to form a air duct. The connection manner may be a soft joint of the air duct, or a special design is designed. The air duct of the air outlet 40 and the air outlet of the indoor unit 10 is connected. The design of the air duct is mainly based on the size of the air outlet 40 and the air outlet of the indoor unit 10. One end of the air duct is connected to the air outlet 40 of the indoor unit 10, and one end can be connected. On the ceiling, the tuyere is installed in the air duct, and the other is the side of the near indoor unit 10 where the duct is connected to the tuyere. In both cases, the size of the ceiling 20 is relatively large. In order to reduce the height of the ceiling 20, we also In the invention, a soft sponge is provided between the indoor unit 10 and the tuyere to achieve sealing, and the soft sponge may be replaced by other soft materials. Air outlet 40 parts The installation can be fixed on the ceiling with screws, or fixed on the ceiling with a clip. It can also be fixed on the ceiling with the cooperation of screws and clips, or fixed on the indoor unit 10. When the size difference is large, it can be at the return air inlet 30. The position adjustment adjusts the screw of the indoor unit 10 to adjust the height of the indoor unit 10 to achieve the required size, and the sealing sponge between the indoor unit 10 and the air outlet 40 also has a relatively small height adjustment capability. Referring to FIG. 1 to FIG. 5, the air return port 30 of the indoor unit 10 is disposed on the side of the indoor unit 10, and cooperates with the side opening of the ceiling 20 to form a return air port 30, and the return air inlet 30 of the ceiling can be combined with the air return port 30 of the indoor unit 10. The air duct connection is set between the two, so that it can ensure that only the air return port 30 is set back from the air. When the partial ceiling 20 is well sealed, the return air can be set without the air duct. When the indoor unit 10 is running, the indoor unit 10 is centrifuged. The fan acts to form a negative pressure at the return air port 30. The partial ceiling 20 is sealed except for the return air port 30, and only the air return port 30 is non-closed, so that the air return port 30 of the indoor unit 10 is naturally passed through the pressure difference. A wind tunnel flow field is formed between the return air outlet 30 of the ceiling. The installation of the components of the air return port 30 is generally fixed on the ceiling, and when the size of the day flower and the tuyere is very accurate, it can also be fixed on the indoor unit 10. Referring to Figures 1 to 5, a closable return air port means 31 is provided at the return air port 30. A closable air outlet device 41 is provided at the air outlet 40. In this way, insects and dust can be prevented from entering the indoor unit 10 when the indoor unit 10 is closed. The closed return air outlet 30 can be a single-panel type, and the single panel is opened or closed by rotation, and the rotation of the panel is realized by the joint movement of the connecting rod and the push rod. . The closing and opening of the air return port device 31 and the air outlet device 41 can also be achieved by the rotation of the multi-duct air vanes. The air outlet 40 can also be designed as a single air guiding vane. When the indoor unit 10 is in operation, the vane is extended, and the air guiding function is realized by the rotation of the vane. Referring to Figures 1 through 7, the air outlet means 41 includes an air outlet means 411 and an air guiding portion 412 which is movably nested in the air outlet means in a vertical direction. The air guiding portion 412 includes a side wall 4120, and a bottom portion of the air guiding portion 412 is formed with a first air outlet 4121. The air outlet device 41 is provided with a first air outlet 4121 and a second air outlet 4122. The first air outlet 40 is provided with a wind guide vane 42. The first air outlet 40 is provided with a plurality of air guiding blades 42. In order to solve the problem that the indoor unit 10 is uncomfortable, the air outlet device 41 is provided with a lifting double air outlet, a first air outlet 4121 and a second air outlet 4122, and the two air outlets can be controlled to be closed and opened, or The state in which the partially closed portion is opened; the closing and opening of the first air outlet 4121 is realized by the rotation of the plurality of air guide blades; the closing and opening of the second air outlet 4122 is achieved by lifting. Opened when extended, closed when retracted; the second air outlet 4122 may be unidirectional or multi-directional. An evaporator is disposed at the air return opening of the inner chamber of the indoor unit 10, and the evaporator is detachably disposed in the indoor unit 10; the air return port of the inner chamber of the indoor unit 10 is configured to be adapted to allow the evaporator to enter and exit the inner chamber of the indoor unit 10. . The indoor unit includes a housing, an evaporator, and a stationary assembly. The housing has a housing inner cavity, an air outlet, and a return air outlet. The evaporator is disposed in the inner cavity of the housing and is located at the return air opening. The stationary assembly removably secures the evaporator within the housing. Wherein, the return air port is configured to move the evaporator into and out of the housing cavity, and the fixing component is configured to be adapted to operate from the air return port. By going back The tuyere is configured to be adapted to allow the evaporator to enter and exit the housing cavity, and the fixing assembly is configured to be adapted to operate from the return air outlet, so that the worker can disassemble the fixing assembly through the return air outlet, thereby being able to be placed at the return air outlet. The evaporator is taken out to maintain the internal components of the air conditioner, and further, the maintenance port in the prior art can be saved, and the overall appearance effect can be improved. Referring to Fig. 1 to Fig. 4, the indoor unit can adopt a cross flow fan or a centrifugal fan, and the cross flow fan is designed to be suction type, and the centrifugal fan can be designed as a blower type or a suction type. Preferably, the indoor unit 10 uses a cross flow fan. The indoor unit is provided with a V-shaped evaporator matched to the cross flow fan. The size of the ceiling 20 required for the indoor unit 10 is small, and the reason why the size of the ceiling 20 is small is that the size of the indoor unit 10 is small and the connection size between the air outlet 40 and the indoor unit 10 is small. The conventional fan adopts a centrifugal fan. To achieve the required air volume of the indoor unit 10, the size of the centrifugal fan is relatively large, and the centrifugal air outlet is intermittent. In order to make the heat exchange air on the evaporator relatively uniform, between the fan outlet and the evaporator A certain uniform distribution area of the airflow must be reserved, and the newly designed indoor unit 10 adopts a cross-flow fan + V-shaped evaporator, the cross-flow fan reaches the same air volume, the size of the fan is relatively small, and the air volume of the cross-flow fan is continuous. The air flow diffusion mixing zone is not required, and the cross flow fan cooperates with the V-shaped opening of the evaporator to reduce the size of the indoor unit 10. Referring to Figures 9 and 10, the indoor unit 10 is provided with a cross-flow fan, including a volute and a vane 11, in a longitudinal section of the cross-flow fan, the volute profile 12 of the volute includes: a circular arc segment 121, which is disposed on the fan At the air inlet; the spiral segment 122 is smoothly connected with the arc segment and extends toward the air outlet of the fan, and the spiral segment is tangent to the arc segment at the first connection point B. The volute profile further includes a straight section 123 disposed at the air outlet of the cross flow fan and tangential to the spiral section 122 to the second connection point A. The cross flow fan includes a volute and a vane 11. In the longitudinal section of the fan, the volute profile 12 of the volute includes: a circular arc segment 121, a helical segment 122 and a straight segment 123. Wherein, the arc segment 121 is disposed at the air inlet of the fan. The spiral segment 122 is smoothly connected to the arc segment 121. The straight line segment 123 is disposed at the air outlet of the fan and is smoothly connected to an end of the spiral segment 122 away from the arc segment 121. By smoothly connecting the arc segment 121, the spiral segment 122 and the straight segment 123 at the respective connection points, the size of the abrupt structure generated at the junction can be reduced, and even a catastrophic structure can be avoided, thereby preventing the airflow from flowing through the above junction. When the eddy current is formed, the ratio of the air volume of the fan to the noise can be achieved to meet the design requirements. Preferably, the spiral segment 122 is tangent to the arc segment 121 to the first connection point B. The straight line segment 123 is tangent to the spiral segment 122 to the second connection point A. The above three segments are connected end to end to form a smooth airflow guiding line, so that the airflow is less likely to generate turbulence during the flow, thereby achieving the purpose of reducing noise. It should be noted that the spiral segment 122 functions to cooperate with the blade 11 to form a uniform air accommodating space. The straight segment 123 is designed because the spiral segment 122 is passed, and the blade 11 is no longer functioning, so a straight section is designed. Line segment 123 guides the smooth flow of airflow. The function of the circular arc segment 121 is as follows: The spiral segment 122 and the straight segment 123 of the fan belong to the outlet section, and have an intake section corresponding to the outlet section, and the intersection point of the inlet section and the outlet section is the closest point to the blade 11 It is also the dividing point of the gas. In order to accommodate more airflow in the air intake section in the embodiment of the present invention, the arc segment 121 is designed to have a reverse arc structure, that is, the arc segment 121 is bent from the first connection point B toward the direction away from the blade 11. extend. Of course, in order to make the fan more applicable, the above arc segment can also be designed as other smooth transition curves. Referring to Figs. 1 to 4, a sealing material 50 is provided at the junction of the indoor unit and the air outlet 40. The reduction of the size of the indoor unit 10 and the tuyere is achieved by the sponge, because it is difficult to ensure that there is no air leakage between the two hard objects. Our newly designed indoor unit 10 air outlet 40 is flat, and can be passed through. The soft connection of the sponge is used to realize the docking of the tuyere and the air duct. Compared with the traditional soft air duct, the ceiling 20 has a smaller space. Referring to Fig. 1, when the indoor unit 10 is not in operation, the tuyere can be sealed to prevent insects and dust from entering the interior of the indoor unit 10, thereby effectively improving the reliability of the indoor unit 10. From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the direction of the air outlet is set to face the ground, so that hot air can be sent to the lowest point in the room, so that the thermal comfort of the room is good. The tuyere is closed when the unit is closed, and the insects and dust cannot enter the unit, and the unit has high reliability. The unit is smaller in size, saves space, and reserves more room for decoration to meet diverse needs. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A ceiling type air conditioner internal system, characterized in that an indoor unit (10) is disposed in a ceiling (20), the system further comprising:

a return air outlet (30), disposed on a side of the ceiling;

An air outlet (40) is disposed on a bottom surface of the ceiling (20); a closable air return device (31) is disposed at the air return port (30), and the air outlet (40) is provided with a closable Air outlet device (41).

2. The ceiling type air conditioner internal system according to claim 1, wherein the air outlet device (41) comprises an air outlet device (411) and is movably nested in the vertical direction in the air outlet Air guiding part inside the device

(412).

The ceiling type air conditioner internal machine system according to claim 2, wherein the air guiding portion (412) includes a side wall (4120), and a bottom portion of the air guiding portion (412) is formed with a first Air outlet (4121).

The ceiling type air conditioner internal system according to claim 3, wherein the air guiding portion (412) further includes a second air outlet (4122) disposed on the side wall (4120) The second air outlet (4122) is closed when the air guiding portion (412) is retracted into the air outlet device (411), and the air guiding portion (412) is extended to the air outlet device (411) When the outside is outside, the second air outlet (4122) is opened.

The ceiling type air conditioner internal machine system according to claim 4, wherein the side wall (4120) includes two first side walls disposed opposite to each other and disposed between the two first side walls The second air outlets (4122) are disposed on the two second side walls and at least one of the two first side walls.

The ceiling type air conditioner internal system according to claim 2, wherein the air guiding portion (412) is provided with a first air outlet (4121) and a second air outlet (4122) which are independent of each other.

The ceiling type air conditioner internal system according to any one of claims 3 to 6, wherein the first air outlet (4121) is provided with a wind guide vane (42), and the air guide vane ( 42) For one piece, the first air outlet (4121) can be closed when closed.

The ceiling type air conditioner internal system according to any one of claims 3 to 6, wherein the first air outlet (4121) is provided with a plurality of air guiding blades (42), and the plurality of The first air outlet (4121) can be closed when the wind guide vane (42) is closed.

The ceiling type air conditioner internal system according to claim 1, wherein the indoor unit (10) is provided with a cross flow fan, including a volute and a fan blade (11), and a longitudinal section of the cross flow fan The volute profile (12) of the volute includes: a circular arc segment (121) disposed at an air inlet of the fan; a spiral segment (122) that is smoothly connected to the arc segment and oriented The air outlet of the fan extends in a direction, and the spiral segment is tangent to the arc segment at the first connection point B.

The ceiling type air conditioner internal machine system according to claim 9, wherein the volute type line further comprises a straight line segment (123) disposed at an air outlet of the cross flow fan, and The spiral segment (122) is tangent to the second connection point A.

The ceiling type air conditioner internal system according to claim 1, wherein an evaporator is disposed at a return air inlet of the inner chamber of the indoor unit (10), and the evaporator is detachably disposed at the The indoor unit (10); the air return opening of the inner chamber of the indoor unit (10) is configured to be adapted to allow the evaporator to enter and exit the inner chamber of the indoor unit (10).

The ceiling type air conditioner internal system according to claim 1, wherein the indoor unit (10) is provided with a centrifugal fan, and the indoor unit (10) is provided with a V matching the centrifugal fan. Shape evaporator.

The ceiling type air conditioner internal system according to claim 1, wherein a sealing material (50) is provided at a joint between the indoor unit and the air outlet (40).