CN100385176C

CN100385176C - Roof arranged type air-conditioner

Info

Publication number: CN100385176C
Application number: CNB2005100026981A
Authority: CN
Inventors: 金度渊
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2004-07-14
Filing date: 2005-01-26
Publication date: 2008-04-30
Anticipated expiration: 2025-01-26
Also published as: KR20060005847A; CN1721773A; KR101116210B1

Abstract

The present invention provides a roof arranged type air-conditioner for confirming the even close of lift type air suction grille. The roof arranged type air-conditioner comprises a machine body, a blast device imbedded into ceiling and having a heat exchanger; air suction grilles removably arranged on lower part of the machine body; a lifting device for lifting or decreasing the air suction grille. Each lifting device comprises a plurality of ropes connecting to positions separated each other by air suction grille; a plurality of reels arranged in the machine body and for swinging or releasing each rope; a drive motor for rotating a plurality of reels; and a differential device transmitting the rotation force of the drive motor to a plurality of reels and offering different rotation speed to each reel according to the difference of rotation resistance of each reel.

Description

Roof arranged type air-conditioner

The application requires the interests at 2004-54833 number korean patent application of Korea S Department of Intellectual Property submission on July 14th, 2004, and this application is disclosed in this, for reference.

Technical field

The present invention relates to a kind of roof arranged type air-conditioner, more particularly, relate to a kind of roof arranged type air-conditioner that is used to promote or reduce the lifting device of suction grille that comprises.

Background technology

Usually, the roof arranged type air-conditioner that is used on the indoor canopy of building comprises: fuselage embeds in the inner space of ceiling and comprises heat exchanger and air-blast device; With the ceiling panel, be used to cover the bottom of fuselage and the opening that on ceiling, forms.This air-conditioner also comprises: be used for the suction of room air and a plurality of outlets in central inlet that forms of ceiling panel and formation around ceiling panel upper inlet of discharge; Air cleaning filter with the inlet inside that is installed in the ceiling panel of the purification of the room air that is used for sucking by inlet.

Roof arranged type air-conditioner also comprises: suction grille, be releasably attached to the central authorities of ceiling panel, and be used to allow the separation of air cleaning filter; And lifting device, be used for vertically promoting or reducing suction grille, with guarantee air cleaning filter be easy to change and clean.By convention, air cleaning filter invests the inner surface (being upper surface) of suction grille, thereby it can be raised with suction grille or reduce together.

Lifting device comprises: rope is connected to each four jiaos of suction grille; And drive unit, be used for twining simultaneously or launching each rope, to promote or the reduction suction grille.Drive unit has and is used to twine or launches a plurality of spools of each rope and be used for forward or the drive motors of spinning reel oppositely.

Yet, there is such problem in this traditional roof arranged type air-conditioner: do not twine around spool equably at rope when suction grille is raised according to the operation of lifting device, or because long-term use causes rope to stretch difference each other and they are presenting on the length under the different situations, suction grille can not be closed exactly.

As being developed the prior art solutions that is used to address the above problem, publication number be the Korean Patent of 1998-018467 (being disclosed on June 5th, 1998) disclose a kind of comprise the bonding part that is arranged on each spool and be used to control spool rotation wind spring roof arranged type air-conditioner and be used to control the operation of drive motors so that the control method that all sides of suction grille are closed equably.Although be installed in the action of the wind spring on each spool and the control operation of this control method by this, suction grille can be closed to a certain extent equably, but exists in still that wind spring is out of order or because long-term the use causes the problem that can not evenly close at all sides of suction grille under the undue situation about stretching of rope.

Summary of the invention

The objective of the invention is to address the above problem, and an aspect of of the present present invention is to provide a kind of roof arranged type air-conditioner, is used to guarantee evenly the closing of each side of suction grille, and no matter the length variations of each rope how.

According on the one hand, the invention provides a kind of roof arranged type air-conditioner, it comprises: fuselage embeds in the ceiling and has heat exchanger and air-blast device; Suction grille is removably mounted on the bottom of fuselage; And lifting device, be used for promoting or reducing suction grille.Each lifting device comprises: a plurality of ropes are connected on the position spaced apart from each other of suction grille; A plurality of spools are installed in the fuselage and are used for twining or unclamping each rope; Drive motors is used to rotate a plurality of spools; And differential gear, be used for the difference that rotary power with drive motors is transferred to a plurality of spools and causes the rotary speed of each spool according to the difference of the rotational resistance of each spool.

Differential gear can comprise: first driven shaft is used for of spinning reel; Second driven shaft is arranged coaxially with first driven shaft and is used to rotate another rotating shaft; Ring gear is installed between first driven shaft and second driven shaft, thereby its rotary middle spindle overlaps with the rotary middle spindle of first driven shaft and second driven shaft; One or more differential pinions, they are outstanding from the facing surfaces of ring gear thereby be rotatably installed between the pivot of ring gear and the periphery, and the rotating shaft of differential pinion radially extends from the pivot of ring gear; The first driven pinion and the second driven pinion install around first driven shaft and second driven shaft, thereby they are in the opposite side and the differential pinion of ring gear; And driver pinion, install around the rotating shaft of drive motors, thereby it meshes with the rotary annular gear with ring gear.

Lifting device rotatably supports first driven shaft and second driven shaft, and this lifting device also can comprise the housing that is installed in underbelly, holds each spool, ring gear, differential pinion, the first driven pinion and second driven pinion and the driver pinion in housing.

The differential pinion and the first driven pinion and the second driven pinion can be bevel gears.

Lifting device also can comprise a plurality of roller bearings, and it is installed in the bottom of fuselage being connected on the corresponding position, position of suction grille with rope, thereby is respectively applied for support cable.

Lifting device also can comprise a plurality of detectors, and it is installed in the bottom of fuselage being connected on the position position adjacent of suction grille with rope, thereby is used to detect closing of suction grille.

A pair of lifting device is installed in the relative side of the bottom of fuselage.

Other aspect of the present invention and/or advantage will partly be set forth in the following description, and part in addition will be clearly by describing, and perhaps understand by implementing the present invention.

Description of drawings

By the description of embodiment being carried out below in conjunction with accompanying drawing, these and/or other aspect of the present invention and advantage will become clear and be easier to and understand, wherein:

Fig. 1 is the cutaway view that illustrates according to roof arranged type air-conditioner of the present invention;

Fig. 2 is the perspective view that the outward appearance of roof arranged type air-conditioner shown in Figure 1 is shown;

Fig. 3 is the upward view of roof arranged type air-conditioner shown in Figure 1;

Fig. 4 is the perspective view that illustrates according to the lifting device of roof arranged type air-conditioner of the present invention;

Fig. 5 illustrates the portion's view that is included in according to the internal configurations of the drive unit in the lifting device of roof arranged type air-conditioner of the present invention; With

Fig. 6 is the decomposition diagram that the internal structure of drive unit shown in Figure 5 is shown.

The specific embodiment

Now, embodiment of the present invention will be described, and its example represents that in the accompanying drawings wherein identical label is represented identical parts all the time.Embodiment is described with reference to the accompanying drawings to explain the present invention.

With reference to Fig. 1 and Fig. 2 of illustrating according to roof arranged type air-conditioner of the present invention, this air-conditioner comprises: box-like fuselage 10, have unlimited basal surface, and fuselage 10 is embedded in the inner space of ceiling 1 by the opening 2 that forms on ceiling 1; With ceiling panel 20, invest the lower end of fuselage 10, with the opening 2 of covering ceiling 1 and the bottom opening 11 of fuselage 10.

Be provided for the air-blast device 12 of the air blast of room air in the central interior of fuselage 10, and heat exchanger 13 is arranged with room air cooling or heating round air-blast device 12.The outlet 22 that ceiling panel 20 is formed with central authorities inlet 21 and is provided with along each side of inlet 21.

Air-blast device 12 comprises: centrifugal turbofan 12a is used for 21 sucking room airs and by outlet 22 radially and the room air that sucks of discharging outwards by entering the mouth; With drive motors 12b, be fixed on the inside top surface of fuselage 10 and be used to drive turbofan 12a.Heat exchanger 13 is set at each side of turbofan 12a, thereby is carried out heat exchange during by heat exchanger 13 when the room air that blows by the operation of turbofan 12a.Heat exchanger 13 is supported by each supporting member 14 of the bottom that places fuselage 10.Supporting member 14 is configured to be collected and discharges from the condensed water of heat exchanger 13 drippages.This supporting member 14 has been mounted air guide plate 15, and it is used for based on turbofan 12a the inner space of fuselage 10 being divided into arrival end space and port of export space, guarantees the smooth flow of the room air that sucks.In the above-mentioned configuration of air-conditioner, room air by 21 fuselages 10 that suck that enter the mouth when the air-blast device 12 that is arranged in fuselage 10 is operated is carried out heat exchange by heat exchanger 13 time, then, by exporting 22 return to room once more, thereby realize the cooling or the heating in room.

Roof arranged type air-conditioner according to the present invention also comprises: air cleaning filter 23, and it is installed in the inlet 21 and is used for filtering the impurity that is contained in by 21 room airs that suck that enter the mouth; With plate shaped suction grille 24, be removably mounted in the inlet 21 of ceiling panel 20, be used for the separation of polishing filter 23.In this case, suction grille 24 is formed with a plurality of ventilation gaps 24a that are used for the suction of room air.Air cleaning filter 23 as shown in Figure 4 invests on the inner surface of suction grille 24, thereby it can be separated when suction grille 24 is separated.

In the present invention,, the user is easily separated air cleaning filter 23 with its replacement or cleaning from air-conditioner, adopted the lifting device 30 that is used for suction grille 24 liftings or reduction in order to be embedded under the state of ceiling 1 at air-conditioner.

To shown in Figure 4, lifting device 30 comprises two identical lifting devices as Fig. 2.This identical lifting device is set at the bottom of fuselage 10 at the relative side of inlet 21, thereby they can promote or reduce each side of suction grille 24 simultaneously.Each lifting device 30 as shown in Figure 4 comprises: the first rope 31a and the second rope 31b are connected on each the

rope connector

25a and 25b on two angles of the inner surface that is arranged on suction grille 24; With drive unit 40, place the bottom of fuselage 10 and be used for twining or unclamping

rope

31a and 31b, thereby promote or reduce a side of suction grille 24.Lifting device 30 also comprises: the first roller bearing 32a and the second roller bearing 32b, and the bottom that places fuselage 10 is so that to be connected to each position of suction grille 24 corresponding with the first rope 31a and the second rope 31b; With the first detector 33a and the second detector 33b, be installed in and roller bearing 32a and 32b position adjacent, and be used to detect closing of suction grille 24.

According to above-mentioned configuration, when the drive unit 40 of the lifting device 30 that is installed in an inlet side of 21 is operated, the first rope 31a and the second rope 31b by the first roller bearing 32a and second roller bearing 32b guiding being wound or unclamping, thereby promote or reduce suction grille 24.Promoted fully when closing fuselage 10 at suction grille 24, the first detector 33a and the second detector 33b can detect closing of suction grille 24.Here, the first detector 33a and the second detector 33b can be traditional microswitch, Hall element etc.

With reference to Fig. 5 and Fig. 6, be used to twine or the drive unit 40 that unclamps the first rope 31a and the second rope 31b comprises: first spool 41 and second spool 42 are respectively applied for and twine or unclamp the first rope 31a and the second rope 31b; Drive motors 43 is used for forward or

reverse rotation spool

41 and 42; Differential gear 50 is used for the revolving force of drive motors 43 is transferred to

spool

41 and 42, and causes the different of

spool

41 and 42 rotary speed according to the difference of

spool

41 and 42 rotational resistance (promptly rotating load); With housing 44, be used to hold

spool

41 and 42 and differential gear 50.

The differential gear 50 that is contained in the housing 44 comprises: first driven shaft 51 and second driven shaft 52, and arrange coaxially to each other and be connected on first spool 41 and second spool 42 so that they are rotated; Ring gear 53 is positioned at first driven shaft 51 and second driven shaft, 52 central authorities; A plurality of differential pinions 54 are rotatably installed in the ring gear 53; The first driven pinion 55 and the second driven pinion 56 are connected with second driven shaft 52 around first driven shaft 51, thereby they mesh with differential pinion 54; With driver pinion 57, be centered around two connections around the rotating shaft 43a of drive motors 43, thereby it meshes so that ring gear is rotated with ring gear 53.

The opposite end of explaining differential gear 50, the first driven shafts 51 and second driven shaft 52 now in detail rotatably is supported among the bearing 44a and 44b of the opposite end that is limited to housing 44.First spool 41 and second spool 42 are fixed on the excircle of first driven shaft 51 and second driven shaft 52, thereby they are with first driven shaft 51 and second driven shaft 52 and rotate.Ring gear 53 with its rotary middle spindle and driven shaft 51 and and the mode that overlaps of 52 both rotary middle spindles be installed between first driven shaft 51 and second driven shaft 52.Because the other end of first driven shaft 51 and second driven shaft 52 is introduced among the axle connect apertures 53a that the central authorities of ring gear 53 form, so ring gear 53 can rotatably be supported in the rotatable mode of freedom.

A plurality of differential pinions 54 are conventional bevel gears, and rotatably are arranged between the center and periphery of rotary annular gear 53, thereby they are outstanding from the facing surfaces of ring gear 53.For this reason, ring gear 53 is carved with a plurality of gear installing hole 53b.In addition, a plurality of differential pinion rotating shaft 54a are arranged among each gear installing hole 53b of ring gear 53, thereby their axle radially extends from the pivot of ring gear 53.

The first driven pinion 55 and the second driven pinion 56 are opposite side and differential pinion 54 meshed bevel gears at ring gear 53, and fix on every side around the excircle of first driven shaft 51 and second driven shaft 52, rotate with them thus.Driver pinion 57 is to be meshed with the periphery of ring gear 53 around the connection status around the rotating shaft 43a of drive motors 43.In this case, drive motors 43 is installed in the outside of housing 44, and the rotating shaft 43a of drive motors 43 is introduced in the housing 44 to be connected with driver pinion 57.Opposite side at housing 44 is formed with the first rope hand-hole 45a and the second rope hand-hole 45b, thereby the first rope 31a and the second rope 31b are introduced in the housing 44 to be wrapped in respectively on first spool 41 and second spool 42.

Now, the operation of drive unit 40 will be explained.

Under identical load is applied to situation on the first rope 31a and the second rope 31b, if ring gear 53 rotates according to the operation of drive motors, then identical power (being identical rotation load) is applied to the opposite side of the differential pinion 54 that meshes with the first driven pinion 55 and the second driven pinion 56, thereby differential pinion 54 is moved by the direction of rotation along ring gear 53 and do not rotate.In this case, because driven pinion 55 rotates on the direction identical with the direction of rotation of ring gear 53 with mutually the same rotary speed with 56, first spool 41 and second spool 42 rotate in an identical manner, and can twine or unclamp the first rope 31a and the second rope 31b.By this way, suction grille 24 can be raised or reduce.Here, the direction of rotation of drive motors 43 is depended in the lifting of suction grille 24 or reduction operation.

Simultaneously, suction grille 24 according to the pent situation of the operation of drive unit 40 under, if when one jiao of the suction grille 24 that links to each other with the second rope 31b with the first rope 31a was at first closed, this made different load be applied on the first rope 31a and the second rope 31b.That is, the rope that is connected with the angle of before having closed of suction grille 24 can not be pushed again, causes the load of corresponding rope to increase fast.When different loads was applied to rope 31a and 31b, then drive unit 40 was by following operation.

For example, if the load of the first rope 31a is increased, thereby and therefore first spool 41 be adjusted no longer rotation (that is, the angle of the suction grille 24 that is connected with the first rope 31a is at first closed), then the first driven pinion 55 no longer rotates.Therefore, differential pinion 54 rotations are moved on the direction of rotation of ring gear 52 simultaneously.By this rotation and the orbital motion of differential pinion 54, the second driven pinion 56 rotates on the direction of rotation of ring gear 53 with the rotary speed that increases with respect to the first driven pinion 55.Under the state that the first driven pinion 55 is stopped fully, the speed rotation of the second driven pinion 56 to double.Therefore, in this case, second spool 42 continues rotation twining the second rope 31b, thereby makes that the angle of the suction grille 24 that is connected to the second rope 31b is fully closed.

As mentioned above, in drive unit 40 of the present invention, even the part of suction grille 24 is at first closed according to the operation of differential gear 50, also stop the rotation of respective spools thus, another spool continues rotation, thereby other parts of suction grille 24 can fully be closed.Therefore, even each

rope

31a and 31b twine around

spool

41 and 42 unevenly, perhaps the length of

rope

31a and 31b is changed, and the present invention also allows evenly closing of suction grille 24.Then, by the use of the first detector 33a and the second detector 33b, the controller (not shown) of each parts detects closing of suction grille 24, thereby stops the operation of drive motors 43 when all ends of suction grille 24 are closed.

Clear as can be known from foregoing description, roof arranged type air-conditioner according to the present invention comprises lifting device and the differential gear that is used to promote or reduce suction grille, thereby can guarantee that also all sides of suction grille are closed equably even the length of each rope is changed or the rope winding is inhomogeneous.

Although represented and described embodiments of the invention, it should be appreciated by those skilled in the art, under the situation that does not break away from principle of the present invention that claims and its scope that equivalent limits thereof are arranged and spirit, can change these embodiments.

Claims

1. roof arranged type air-conditioner, comprise embed ceiling and have heat exchanger and the fuselage of air-blast device, be removably mounted on fuselage the bottom suction grille and be used to promote or reduce the lifting device of suction grille, each lifting device comprises:

A plurality of ropes are connected to the position spaced apart from each other of suction grille;

A plurality of spools are installed in the fuselage, and are used for twining or unclamping each rope;

Drive motors is used to rotate a plurality of spools; With

Differential gear is used for the revolving force of drive motors is transferred to a plurality of spools, and causes the difference of the rotary speed of each spool according to the difference of the rotational resistance of each spool.

2. air-conditioner as claimed in claim 1, wherein, differential gear comprises:

First driven shaft is used for of spinning reel;

Second driven shaft is arranged coaxially with first driven shaft and is used to rotate another spool;

Ring gear is installed between first driven shaft and second driven shaft, thereby its rotary middle spindle overlaps with the central shaft of first driven shaft and second driven shaft;

One or more differential pinions are rotatably installed between the pivot and periphery of ring gear, thereby they are from the facing surfaces upper process of ring gear, and the rotating shaft of differential pinion radially extends from the pivot of ring gear;

The first driven pinion and the second driven pinion install around first driven shaft and second driven shaft, thereby they are in the opposite side and the differential pinion of ring gear; With

Driver pinion is installed around the rotating shaft of drive motors, thereby meshes so that ring gear is rotated with ring gear.

3. air-conditioner as claimed in claim 2, wherein, lifting device rotatably supports first driven shaft and second driven shaft, and

Wherein, lifting device also comprises the housing that is installed in underbelly, holds each spool, ring gear, differential pinion, the first driven pinion and second driven pinion and the driver pinion in housing.

4. air-conditioner as claimed in claim 2, wherein, the differential pinion and the first driven pinion and the second driven pinion are bevel gears.

5. air-conditioner as claimed in claim 1, wherein, lifting device also comprises a plurality of roller bearings, it is installed in lower part of frame being connected on the corresponding position, position of suction grille with rope, thereby is respectively applied for support cable.

6. air-conditioner as claimed in claim 1, wherein, lifting device also comprises a plurality of detectors, itself and rope are connected on the position position adjacent of suction grille and are installed in the bottom of fuselage, thereby are used to detect closing of suction grille.

7. air-conditioner as claimed in claim 1, wherein, a pair of lifting device is installed in the relative side of underbelly.