CN208652713U - The indoor unit of air-conditioning device - Google Patents

Abstract

The utility model provides a kind of indoor unit of air-conditioning device, even if being also able to suppress its sprawling in the case where motor kindling.Indoor unit has: top plate (12a)；Centrifugal fan (14)；Motor (17) rotates the centrifugal fan (14)；With cover (30).Motor (17) includes the motor body (17a) of tubular；With rotary shaft (17b), it is fixed in centrifugal fan (14).Cover (30) is the cover for covering the anti-flammability of motor body (17a).Cover the outside at least 70% or more of the outer peripheral surface of (30) covering motor body (17a).Cover (30) is formed, and the outer rim of the motor body (17a) when being less than from the direction that rotary shaft (17b) extends from cover (30) to the average value of the distance of the outer peripheral surface of motor body (17a) is away from the maximum value of the distance at the center of rotary shaft (17b).

Description

The indoor unit of air-conditioning device

Technical field

The utility model relates to the indoor units of air-conditioning device.

Background technique

The indoor unit of air-conditioning device is adjusted the temperature and humidity of the room air of sucking, and should using fan Air adjusted is to indoor blowout.In the case where being arranged at the indoor unit of ceiling, turbofan or more is mostly used Blade fan mostly uses cross flow fan in wall-mounted indoor unit.

For example, ceiling flush type indoor unit shown in patent document 1 (Japanese Unexamined Patent Publication 11-44433 bulletin) is adopted With turbofan.In the indoor unit, motor is installed on the top plate of casing (shell), which revolve turbofan Turn.The purpose prevented something from spreading when for kindling, constitutes casing using the shell and heat insulating member that are made of steel plate.Also, at this In indoor unit, turbofan and motor are the structures covered by shell, and the shell is made of steel plate.

As described above, indoors in unit, if fan and motor are covered using steel plate, even if catching fire and spreading indoors When being expanded in indoor unit, also it can inhibit the sprawling around indoor unit using steel plate.

But in the setting or the misconnection as the power supply provided to indoor unit for not carrying out indoor unit suitably In the case where the power supply of unsuitable voltage, despite slim possibility, it is believed that the motor of indoor unit is kindling Source.It is preferred, therefore, that taking some countermeasures, so that not being expanded to motor fire in the case where motor internal fires Around.Moreover it is preferred that in the case where if fire occurs indoors, the reason of capable of finding out the fire unit indoors Motor, the still outside of unit indoors.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 11-44433 bulletin

Utility model content

The project of the utility model is, provides a kind of indoor unit of air-conditioning device, even if the case where motor catches fire Under be also able to suppress its sprawling.

The indoor unit of the air-conditioning device of the first aspect of the utility model has shell, fan, rotates the fan Motor and cover.Fan is configured inside the shell.Motor has the motor body and rotary shaft of tubular, and the rotary shaft is from the horse Up to main body protrusion and it is fixed in fan.Cover is the cover for covering the anti-flammability of motor body.The outer peripheral surface of cover covering motor body Outside at least 70% or more.Also, cover is formed, the average value of the distance of the outer peripheral surface from cover to motor body be less than from The outer rim of motor body when the direction observation that the rotary shaft of motor extends is away from the maximum value of the distance at the center of rotary shaft.

Here, since the cover for being configured in the outside of the outer peripheral surface of motor body covers the outer peripheral surface of motor body at least 70% or more, therefore, even if being also able to suppress around the fire spread to motor in the case where motor kindling.

In addition, here, the average value of the distance of the outer peripheral surface from cover to motor body, which is less than from the rotary shaft of motor, to be extended Direction observation when motor body outer rim away from the maximum value of the distance at the center of rotary shaft.That is, from cover to motor body The volume in the space of outer peripheral surface is small.Therefore, even if in the case where motor kindling, in the sky of the outer peripheral surface from cover to motor body Between in also be easy fire extinguishing, can inhibit and spread around motor.

The indoor unit of the air-conditioning device of the second aspect of the utility model is in the indoor unit of first aspect, and motor is also With from motor body foot outstanding.Foot is fixed in motor carrier.Motor carrier be shell a part or It is the component for being installed in shell.Also, cover also covers the side opposite with motor body side of foot.

Here, cover the outside at least 70% or more of the outer peripheral surface of motor body cover also cover it is outstanding from motor body Foot.Thereby, it is possible between inhibiting to generate around the foot and linking up the outside of the outer peripheral surface of motor body and motor Gap.Therefore, even if also can more reliably inhibit to spread in the case where motor kindling.

The indoor unit of the air-conditioning device of the third aspect of the utility model in the indoor unit of first or second aspect, Motor also has first part's electric wire outstanding from motor body.The opening for passing through electric wire is formed in cover or is lacked Mouthful.

Here, electric wire is prominent from motor body, but by being formed through in opening or notch on cover, so as to will be electric Line is connected to external power supply etc..

For the indoor unit of the air-conditioning device of the fourth aspect of the utility model in the indoor unit of the third aspect, cover is opposite It is configured in motor body, when from the direction that the rotary shaft of motor extends, the opening or notch for being formed in cover are from quilt Deviate in region made of first straight line and second straight line surround, wherein the first straight line is by the center of rotary shaft and motor master One end of the first part of body links up, and the second straight line is another by the first part of the center of rotary shaft and motor body One end links up.

If fiery from electric wire in the case where the inside of motor body is abnormal fever and catches fire in motor body A possibility that first part of part, that is, motor body outstanding scurries out height.

In consideration of it, here, the opening being formed on cover or notch is made to deviate from defined region, even if in motor body In the case where kindling, also fire is inhibited to scurry out to the outside of cover.

The utility model the 5th aspect air-conditioning device indoor unit first to fourth aspect indoor unit in, Cover is configured to relative to motor body, and gap is vacated between cover and motor.

Here, it is configured to make cover not to be close to motor due to that will cover and vacates gap between them, it can be ensured that horse The thermal diffusivity reached.Using the structure for being close to cover with motor, need to improve the heat resistance of motor itself, motor Price increases, but here, due to having vacated gap between cover and motor, can reduce the price of motor.

The indoor unit of the air-conditioning device of 6th aspect of the utility model is in the indoor unit of first aspect, and motor is also With foot, the foot is fixed in motor carrier.Motor carrier is outside a part of shell is either installed in The component of shell.Also, opening or notch for passing through the foot of motor are formed on cover.

Here, motor has foot, if but foot it is big, when use the structure for covering the motor including foot with cover When, cover can be excessive.Therefore, the opening for being used to that foot to be made to pass through or notch are formed in cover, realize the miniaturization of cover.

The indoor unit of the air-conditioning device of 7th aspect of the utility model in the indoor unit of the 6th aspect, consolidated by cover Due to motor.

In the case where using the structure for making foot from the outside that the opening or notch being formed on cover reach cover, energy Enough make cover close to motor body.In consideration of it, here, by so that cover is fixed on motor and will reach cover outside foot one Motor carrier is fixed in part, so that motor carrier be made to carry motor and cover both sides.Since motor and cover are integrated, because And it is able to suppress and generates unfavorable condition as the grating with motor vibrations between them.

The indoor unit of the air-conditioning device of the eighth aspect of the utility model face either in the first to the 7th aspect Indoor unit in, cover also locally end of the covering motor body on the direction that rotary shaft extends.

Here, make the outside of the outer peripheral surface of motor body at least capped 70% or more using cover, and motor body End part Land cover on the direction that rotary shaft extends.Even if, can also be further as a result, in the case where motor catches fire Inhibit the fire to spreading around motor.

The utility model the 9th aspect air-conditioning device indoor unit first either into eighth aspect face Indoor unit in, cover be divided into more than two components including the first component and second component.Also, the first component and Two components are locally overlapped in the state of covering motor body.

Here, by using the cover of segmenting structure, so that cover covering motor master is utilized in the assembling work of unit indoors Time needed for the process of body shortens.Further, since the first component and second component part in the state of covering motor body Ground overlapping, therefore, even if also can inhibit the fire in the case where motor kindling and emerge to the outside of cover.

The indoor unit of the air-conditioning device of tenth aspect of the utility model face either in the first to the 9th aspect Indoor unit in, cover be configured to relative to motor body, gap is vacated between cover and fan.

Here, by ensuring gap between the fan of rotation and non-rotary cover, to can inhibit the two contact and send out Unfavorable condition as noise out.

Utility model effect

The indoor unit of the air-conditioning device of first aspect according to the present utility model, due to being configured in the outer of motor body At least 70% or more of the outer peripheral surface of the cover covering motor body in the outside of circumferential surface, therefore, even if in the case where motor kindling, Also it is able to suppress around the fire spread to motor.In addition, the average value of the distance of the outer peripheral surface from cover to motor body is less than The outer rim of motor body when from the direction that the rotary shaft of motor extends is away from the maximum value of the distance at the center of rotary shaft, i.e., Make also to be easy fire extinguishing in the space of the outer peripheral surface from cover to motor body in the case where motor catches fire.

The indoor unit of the air-conditioning device of second aspect according to the present utility model, is able to suppress and generates around foot The gap that the outside of the outer peripheral surface of motor body and motor is linked up, even if in the case where motor kindling, it also can be more It is reliably suppressed sprawling.

Electric wire can be connected to external electricity by the indoor unit of the air-conditioning device of the third aspect according to the present utility model Source etc..

The indoor unit of the air-conditioning device of fourth aspect according to the present utility model, even if the feelings caught fire in motor body Under condition, also it is able to suppress fire and scurries out to the outside of cover.

The indoor unit of the air-conditioning device of 5th aspect according to the present utility model, can reduce the price of motor.

The indoor unit of the air-conditioning device of 6th aspect according to the present utility model, can be realized the miniaturization of cover.

The indoor unit of the air-conditioning device of 7th aspect according to the present utility model, is able to suppress and produces between motor and cover Unfavorable condition as the raw grating with motor vibrations.

The indoor unit of the air-conditioning device of eighth aspect according to the present utility model, even if in the case where motor kindling, The fire can also be further suppressed to spreading around motor.

The indoor unit of the air-conditioning device of 9th aspect according to the present utility model, by using the cover of segmenting structure, from And it is shortened in the assembling work of unit using the time needed for the process of cover covering motor body indoors.

The indoor unit of the air-conditioning device of tenth aspect according to the present utility model, by fan in rotation with do not rotate Cover between ensure gap, to both can inhibit contact and issue unfavorable condition as noise.

Detailed description of the invention

Fig. 1 is the stereoscopic figure of the indoor unit of previous and the utility model first embodiment.

Fig. 2 is the longitudinal section view of previous indoor unit.

Fig. 3 is the exploded perspective view of the centrifugal fan of the indoor unit of first embodiment, motor and cover.

Fig. 4 A is the longitudinal section view of the centrifugal fan of the indoor unit of first embodiment, motor and cover.

Fig. 4 B is the explanatory diagram of the motor of the indoor unit of first embodiment and the gap size of cover.

Fig. 5 is the plan view of the cover of the indoor unit of first embodiment.

Fig. 6 is the plan view of the cover of the indoor unit of the variation 1A of first embodiment.

Fig. 7 is the stereoscopic figure of the cover of the indoor unit of the variation 1B of first embodiment.

Fig. 8 is the longitudinal section view of the centrifugal fan of the indoor unit of the variation 1B of first embodiment, motor and cover.

Fig. 9 is the stereoscopic figure of the indoor unit of the second embodiment of the utility model.

Figure 10 is the exploded perspective view of the multiblade fan of the indoor unit of second embodiment, motor and cover.

Figure 11 is the longitudinal section view of the multiblade fan of the indoor unit of second embodiment, motor and cover.

Figure 12 is the stereoscopic figure of the indoor unit of the third embodiment of the utility model.

Figure 13 is the longitudinal section view of the indoor unit of third embodiment.

Figure 14 is the exploded perspective view of the motor of the indoor unit of third embodiment, cover and circumferential component.

Figure 15 is the longitudinal section view around the motor of the indoor unit of third embodiment.

Figure 16 is the partial enlarged view of Figure 15.

Figure 17 is the exploded perspective view of the motor of the indoor unit of the variation of third embodiment, cover and circumferential component.

Figure 18 is the longitudinal section view around the motor of the indoor unit of the variation of third embodiment.Label declaration

The indoor unit of 10 air-conditioning devices

12 shells

12a top plate (motor carrier)

14 centrifugal fans

17 motors

17a motor body

The outer rim of motor body when 17ae is from the direction that the rotary shaft of motor extends

The rotary shaft of 17b motor

The foot of 17c motor

17d connector portion (first part)

One end of 17d1 connector portion

The other end of 17d2 connector portion

The electric wire of 17e motor

Step surface (end on direction that the rotary shaft of motor body extends) the 17f2 motor master of 17f1 motor body The step surface (end on direction that the rotary shaft of motor body extends) of body

30 covers

The notch of 33a cover

The indoor unit of 40 air-conditioning devices

42 shells

42a motor mount plate (motor carrier)

44 multiblade fans

47 motors

47a motor body

The rotary shaft of 47b motor

The foot of 47c motor

47f circumferentia (end on direction that the rotary shaft of motor body extends)

60 covers

The notch of 63a cover

The indoor unit of 70 air-conditioning devices

72 shells

74 cross flow fans

77 motors

77a motor body

The rotary shaft of 77b motor

The end of the prominent side of the rotary shaft of 77f motor body

The end of the side opposite with the prominent side of rotary shaft of 77g motor body

80 covers

90 covers

130 covers

The notch of 133a cover

170 motors

180 covers

190 covers

230 covers

The notch of 233a cover

The distance of G1, G2, G3, outer peripheral surface from cover to motor body

The center of O rotary shaft

Specific embodiment

<previous mode>

Fig. 1 shows the stereoscopic figure of the indoor unit 10 of previous air-conditioning device.Here, indoor unit 10 is smallpox The unit of plate setting type mainly includes shell 12, internal to store various constitution equipments；With decoration panel 13, it is configured in The downside of shell 12.

Metal shell 12 is the component of the box-like of lower surface opening, such as Fig. 2 (diagrammatic, side section view of indoor unit 10 Figure) shown in be inserted into configure in the opening at the ceiling for the interior (room) for being formed in air-conditioning object.Also, decorative cover Plate 13 includes suction inlet 13a, is configured in substantial middle, so that indoor air to be drawn into shell 12；And blow-off outlet 13b is configured in a manner of around the periphery of suction inlet 13a, so that air is blown out to interior, decoration panel 13 from shell 12 It is embedded in the opening of ceiling.

In shell 12, mainly it is configured with: centrifugal fan 14, it will be indoor by the suction inlet 13a of decoration panel 13 Air is drawn into shell 12 and blows out to peripheral direction；Heat exchanger 15 surrounds the periphery of centrifugal fan 14；And horn mouth 16, it is used to guide from the air that suction inlet 13a is sucked to centrifugal fan 14.Centrifugal fan 14 is linked to the rotation of motor 17 Shaft 17b, and driven and rotate by motor 17, the motor 17 is fixed on the approximate centre of the top plate 12a of shell 12.

Centrifugal fan 14 is resin system, mainly includes disk-shaped mainboard 21, is linked with motor 17；Multiple blades 22, They are annularly configured in 17 opposite side of fan motor of mainboard 21 around the rotation axis O of mainboard 21；With cricoid shield Cover 23, is configured to clip multiple blades 22 between mainboard 21 on the direction rotation axis O.Mainboard 21 is in the central portion Towards the component of the prominent hub 21a for being formed with substantially truncated cone shape in the side suction inlet 13a, in its peripheral part, by multiple blades The end of 22 17 side of fan motor links up.Shield 23 is with the opening from its peripheral part towards central portion and to sucking Mouth 13a lateral bend and bell component outstanding, the end of 17 opposite side of fan motor of multiple blades 22 is linked up. Blade 22 is the component of the turbine wing-like of the direction of rotation hypsokinesis relative to centrifugal fan 14.

<for implementing the first embodiment of the utility model>

(1) basic structure of the indoor unit of air-conditioning device

The indoor unit of the air-conditioning device of one embodiment of the utility model is in above-mentioned previous air-conditioning device Indoor unit 10 be also equipped with covering motor 17 cover made of unit.

(2) detailed construction of the cover of motor and covering motor

(2-1) motor

Motor 17 includes cylindric motor body 17a, resin molded to have coil；Rotary shaft 17b, from motor master Body 17a is prominent；With three foot 17c, they are prominent towards radial foreign side from the periphery of motor body 17a.

As shown in Figure 4 A, the hub 21a of the mainboard 21 of centrifugal fan 14 is fixed in the end of rotary shaft 17b.Motor master Body 17a's is most configured in the space surrounded by hub 21a.

Substrate is built-in in the part of motor body 17a, opposite with the side outstanding rotary shaft 17b side.With it is interior The electric wire 17e for the substrate connection set extends outwardly from connector portion 17d, and the connector portion 17d is from the periphery of motor body 17a It is protruded outward towards diameter.

As shown in Figure 4 A, three foot 17c are the shapes kept to vibration-proof rubber 18, respectively to vibration-proof rubber 18 The top plate 12a of shell 12 is fastened onto the state of being kept (referring to Fig. 2).Specifically, motor 17 is anti-by means of penetrating through Vibration rubber 18 and top plate 12a bolt 19 and be fixed in top plate 12a.

(2-2) cover

Cover 30 is the cover for covering the anti-flammability of motor body 17a.Here, the material of cover is the stainless steel of austenitic type, but It can also be using the resin cover of anti-flammability or the cover of aluminum.

It is equal it is found that covering the outside at least 70% or more for the outer peripheral surface that 30 cover motor body 17a according to Fig. 3.Here, it uses The cover in the outside 90% or more of the outer peripheral surface of covering motor body 17a.Specifically, prominent from the outer peripheral surface of motor body 17a Also the covering of quilt cover 30 (scheme by reference in the outside (side opposite with the side motor body 17a of foot 17c) of three foot 17c out 4A).Hereby it is achieved that by the outer of motor body 17a in addition to the part of the notch 33a for passing through aftermentioned electric wire 17e The state that the outside of circumferential surface nearly all covers.

In addition, cover 30 also locally covers the end of the prominent side rotary shaft 17b of motor body 17a.Such as Fig. 3 and figure Shown in 4A, in the part outstanding of rotary shaft 17b there are cricoid step surface 17f1,17f2,17f3, but wherein step surface The ring-shaped flat face 31 of 17f1,17f2 quilt cover 30 covers.

Cover 30 includes ring-shaped flat face 31, offers the hole passed through for rotary shaft 17b at its center；Ring-type inclination face 32, extend from the periphery of ring-shaped flat face 31；Canister portion 33, it is parallel with rotary shaft 17b from the end of cyclic annular inclination face 32 Ground extends；With multiple fixed fins 34, they are prominent outward from canister portion 33 to diameter.As shown in Figure 4 A, cyclic annular inclination face 32 inclined angle is equal with the inclined angle of hub 21a of centrifugal fan 14.Ring-type inclination face 32 and canister portion 33 are covered The outside of the outer peripheral surface of lid motor body 17a.In addition, canister portion 33 also covers the outside of three foot 17c.Multiple fixations of cover 30 With fin 34 on the top plate 12a that vibrationproof piece (not shown) is fixed on shell 12 by means of bolt.

As shown in Figure 4 A, in the state that motor 17 and cover 30 are fixed in the top plate 12a of shell 12, in the horse of motor 17 Ensure gap up between the outer peripheral surface and cover 30 of main body 17a, also ensures that gap between cover 30 and the mainboard 21 of centrifugal fan 14.

The shape of cover 30 is determined in such a way that the gap between the outer peripheral surface of motor body 17a and cover 30 is as small as possible.Such as Shown in Fig. 4 B, the distance from cover 30 to the outer peripheral surface of motor body 17a is different sizes in each portion of cover 30 (for example, figure Distance G1, G2, G3, G10 shown in 4B).Here, it covers 30 shape to be confirmed as, these 30 each portions of cover arrive motor The average value of the distance (G1, G2, G3, G10) of the outer peripheral surface of main body 17a, which is less than from the rotary shaft 17b of motor 17, to be extended Direction observation when motor body 17a outer rim 17ae (referring to Fig. 4 B and Fig. 5) distance of O away from the center of rotary shaft 17b Maximum value R.In addition, in the present embodiment, since the shape of motor body 17a is cylindrical shape, motor body 17a's The maximum value R of the distance of outer rim 17ae O away from the center of rotary shaft 17b is consistent with the radius of motor body 17a.Such as use polygon Tubular motor body in the case where, the outer rim of motor body away from the maximum value of the distance at the center of rotary shaft be from rotary shaft to The distance at the top of the outer rim of tubular motor body.

As described above, being formed with the notch 33a for passing through the electric wire 17e of motor 17 in cover 30.Specifically, in cover Center in 30 canister portion 33, from the part opposed with the connector portion 17d of motor 17 slightly offset from position on, such as Fig. 3 and Jagged 33a is formed as shown in Figure 5.It is embedded in notch 33a to the electric wire 17e slight curvature of motor 17, covers in this state 30 are fixed in the top plate 12a of shell 12.

(3) feature

(3-1)

In the indoor unit 10 of the air-conditioning device of first embodiment, due to being configured in the periphery of motor body 17a The cover 30 in the outside in face covers at least 70% or more of the outer peripheral surface of motor body 17a, therefore, even if in 17 inside of motor In the case where fire, also it is able to suppress around the fire spread to motor 17.

In addition, the average value of the distance (G1, G2, G3, G10) from cover 30 to the outer peripheral surface of motor body 17a is small The outer rim 17ae of motor body 17a when from the direction that the rotary shaft 17b of motor 17 extends is away from the center of rotary shaft 17b The maximum value R of the distance of O.That is, the volume in the space from cover 30 to the outer peripheral surface of motor body 17a is small.Therefore, even if in motor In the case where 17 kindlings, it is also easy fire extinguishing in the space from cover 30 to the outer peripheral surface of motor body 17a, can inhibit to motor 17 Surrounding is spread.

If being easy the motor of the reason of finding out fire unit 10 indoors also, in the case where fire occurs indoors 17, still there are ignition causes for the outside of unit 10 indoors.

(3-2)

In the indoor unit 10 of the air-conditioning device of first embodiment, the outside of the outer peripheral surface of motor body 17a is covered At least 70% or more cover 30 is also covered from motor body 17a multiple foot 17c outstanding.Thereby, it is possible to inhibit in foot 17c Around generate the gap for linking up the outside of the outer peripheral surface of motor body 17a and motor 17.Therefore, even if in motor 17 In the case where kindling, it also can more reliably inhibit to spread.

(3-3)

In the indoor unit 10 of the air-conditioning device of first embodiment, electric wire 17e is prominent from motor body 17a, but logical It crosses and is formed through in the notch 33a on cover 30, so as to which electric wire 17e to be connected to external power supply etc..

(3-4)

In the indoor unit 10 of the air-conditioning device of first embodiment, it is configured to make cover 30 and motor 17 since 30 will be covered It is not close to and vacates gap between them, therefore, it can be ensured that the thermal diffusivity of motor 17.It is close to cover 30 with motor 17 using Structure in the case where, need to improve the heat resistance of motor itself, the price of motor increases, but here, due in cover 30 and horse Gap has been vacated between up to 17, therefore, can reduce the price of motor 17.

(3-5)

In the indoor unit 10 of the air-conditioning device of first embodiment, the periphery of motor body 17a is covered using cover 30 The outside in face at least 70% or more, and the end locally quilt cover on the direction that rotary shaft 17b extends of motor body 17a 30 ring-shaped flat face 31 covers.Even if the fire can also be further suppressed to motor 17 in the case where motor 17 catches fire as a result, Around spread.

(4) variation

(4-1)

In above-mentioned first embodiment, as shown in figure 5, by notch 33a be formed in the canister portion 33 of cover 30 from horse The center of the part opposed up to 17 connector portion 17d slightly offset from position.Even if fiery in 17 internal fires of motor as a result, In the case where connector portion 17d ejection, it also can inhibit fire and emit from notch 33a to outside.

It, can also be using cover 130 shown in fig. 6 but in the case where wanting more reliably fire to be inhibited to spray to outside cover.

The cover 130 of variation 1A shown in fig. 6 replaces the cover 30 in above-mentioned first embodiment and uses, and covers 130 It is different for the position of the electric wire 17e of motor 17 notch passed through.

The notch 133a of cover 130 is formed in the canister portion 133 (being equivalent to canister portion 33) of cover 130, from the connection with motor 17 The position that device portion 17d opposed part is completely offset from.Specifically, cover 130 is configured to relative to motor body 17a, from When direction (viewpoint in Fig. 6) observation that the rotary shaft 17b of motor 17 extends, the notch 133a of cover 130 is formed in from by first Region S made of straight line L1 and second straight line L2 is surrounded deviate, wherein the first straight line L1 by the center O of rotary shaft 17b with One end 17d1 of the connector portion 17d of motor body 17a is linked up, the second straight line L2 by the center O of rotary shaft 17b with The other end 17d2 of the connector portion 17d of motor body 17a is linked up.

If in this wise constitute, configure cover 130, even if motor body 17a Inside coil abnormal heating and in motor In the case that kindling and fire are scurried out from connector portion 17d in 17, also hardly has fire and scurry out to the feelings in the outside of cover 130 Condition.

(4-2) variation 1B

In above-mentioned first embodiment, the cover in the outside at least 70% or more of the outer peripheral surface of motor body 17a is covered 30 also cover from motor body 17a multiple foot 17c outstanding.It can also be instead using as shown in Figure 7 and Figure 8 , the foot 170c for making motor 170 reach the indoor unit outside cover 230.

As shown in fig. 7, cover 230 includes ring-shaped flat face 231, the rotary shaft 170b for motor 170 is offered at its center The hole passed through；Ring-type inclination face 232, extends from the periphery of ring-shaped flat face 231；Canister portion 233, from ring-type inclination face 232 end is extended parallel to rotary shaft 170b；With multiple fixed fins 234, they dash forward outward from canister portion 233 to diameter Out.Ring-type inclination face 232 and canister portion 233 cover the outside of the outer peripheral surface of motor body 170a.It is formed with and is used in canister portion 233 Avoid the notch 233b with the interference of three foot 170c.In addition, being also formed in canister portion 233 for the electric wire for motor 170 The other notch 233a passed through.

In addition, ground seperated with cover 230, has been also prepared for lid 239, the rotary shaft 170b prominent one of the lid 239 and motor 170 The end face of the opposite side in side is opposed, and lid 239 and cover 230 cover motor 170 together.Lid 239 includes plectane 239a；With three Fin 239b, they are prominent outward to diameter through stage portion from plectane 239a.It is installed by the way that 230 will be covered from the side rotary shaft 170b In motor 170,239 are closed the lid from opposite side, and the fin 239b of the fixation of cover 230 fin 234 and lid 239 is fastened, from And cover 230 and lid 239 are integrated with motor 170.It is further preferred, that by disk-shaped elastomeric element (sponge or rubber etc.) It is clipped between lid 239 and motor 170, improves integrated degree.

As shown in figure 8, being fixed in indoor list across vibration-proof rubber 18 with cover 230 and the integrated motor 170 of lid 239 The shell of member.In this state, the foot 170c of motor 170 is stretched from the notch 233b of the canister portion 233 of cover 230 to diameter outward Out.But other than the part of notch 233a, 233b, cover 230 substantially covers motor 170.

According to cover 230 as described above, then it can be realized the miniaturization of cover 230.In addition, as shown in figure 8, motor 170 Gap between cover 230 is small, even if also holding from cover 230 into the space of motor 170 in the case where motor 170 catches fire Easily fire extinguishing.

In addition, here, it is fixed (integrated) with motor 170 to make cover 230 by using lid 239, and cover 230 will be reached A part of the foot 170c in outside is fixed on the shell of indoor unit, to motor 170 and 230 both sides of cover are supported on outer Shell.By 230 integration of motor 170 and cover, so as to inhibit to generate between them with motor vibrations fricative this The unfavorable condition of sample.

In addition, the mainboard 21 of centrifugal fan 14 shown in double dot dash line is shown in fig. 8, even if indoor unit is transporting When or in the case that the when of falling is collided, the top plate 12a that mainboard 21 can encounter the shell of indoor unit is covered without contacting 230。

(4-3) variation 1C

In above-mentioned first embodiment, the notch passed through for the electric wire 17e for motor 17 is formed in cover 30 33a, but notch 33a can also be replaced and form hole (opening) on cover 30.

<for implementing the second embodiment of the utility model>

The appearance of the grounding indoor unit 40 of the second embodiment of the utility model is shown in Fig. 9.Air-conditioning dress The indoor unit 40 set is placed on the floor of a room, will from suction inlet 48a, 48b of the left and right sides for being configured in lower part Room air sucking, and the air after air is reconciled is blown out to interior from blow-off outlet 46a, the 46b for being configured in top.In room The back side (not shown) of the shell 42 of interior unit 40 is fixed with motor mount plate 42a shown in Fig. 10.

Indoors in the shell 42 of unit 40, with heat exchanger etc. together configured with multiblade fan 44 shown in Fig. 10, The motor 47 for rotating the multiblade fan 44 and the cover 60 for covering the motor 47 etc..

(2) detailed construction of the cover of motor and covering motor

(2-1) motor

Motor 47 includes cylindric motor body 47a, resin molded to have coil；Rotary shaft 47b, from motor master Body 47a is prominent；It is prominent towards radial foreign side from the periphery of motor body 47a with foot 47c.

As shown in figure 11, multiblade fan 44 is fixed in the end of rotary shaft 47b.Motor body 47a's and rotary shaft The part of the opposite side in the prominent side 47b is formed with connector portion 47d.As shown in figure 11, foot 47c is fixed in motor guarantor Hold frame 49.Motor holding frame 49 is fastened onto above-mentioned motor mount plate 42a by means of bolt.

(2-2) cover

The cover 60 of anti-flammability is the component for covering the outside at least 70% or more of outer peripheral surface of motor body 47a.From motor The equal quilt cover 60 in the outside of the outer peripheral surface of main body 47a foot 47c outstanding and the outside of motor holding frame 49 covers (referring to Fig.1 1). Hereby it is achieved that by the outer peripheral surface of motor body 47a in addition to the part of the notch 63a for passing through the electric wire of motor 47 The state that outside nearly all covers.

In addition, cover 60 also locally covers the end of the prominent side rotary shaft 47b of motor body 47a.In rotary shaft The part outstanding 47b, as shown in Figure 10 and Figure 11, there are the ring-shaped flat faces 61 of circumferentia 47f, but quilt cover 60 to cover.

Cover 60 includes ring-shaped flat face 61, offers the hole passed through for rotary shaft 47b at its center；Ring-type inclination face 62, extend from the periphery of ring-shaped flat face 61；Canister portion 63, it is parallel with rotary shaft 47b from the end of cyclic annular inclination face 62 Ground extends；With flange 64, extend outward from canister portion 63 to diameter.Ring-type inclination face 62 and canister portion 63 cover motor body The outside of the outer peripheral surface of 47a.The flange 64 of cover 60 is fixed in motor mount plate 42a across vibrationproof piece (not shown), described Motor mount plate 42a is arranged at shell 42 by means of bolt.

As shown in figure 11, in the state that motor 47 and cover 60 are fixed in motor mount plate 42a, in the motor of motor 47 Ensure gap between the outer peripheral surface and cover 60 of main body 47a, also ensures that gap between cover 60 and multiblade fan 44.

The gap that the shape of cover 60 is determined to be between the outer peripheral surface for making motor body 47a and cover 60 is small as far as possible.Such as Figure 11 It is shown, size is different in each portion of cover 60 from cover 60 to the distance of the outer peripheral surface of motor body 67a.Here, 60 are covered Shape is determined to be, so that the average value of the distance of the outer peripheral surface to motor body 47a in these 60 each portions of cover is less than from motor The maximum value of the distance at center of the outer rim away from rotary shaft 47b of motor body 47a when the direction observation that 47 rotary shaft 47b extends R。

(3) feature

(3-1)

In the indoor unit 40 of the air-conditioning device of second embodiment, due to being configured in the periphery of motor body 47a The cover 60 in the outside in face covers at least 70% or more of the outer peripheral surface of motor body 47a, therefore, even if in 47 inside of motor In the case where fire, also it is able to suppress around the fire spread to motor 47.

In addition, being less than the rotary shaft 47b from motor 47 from cover 60 to the average value of the distance of the outer peripheral surface of motor body 47a The outer rim of motor body 47a when the direction observation of extension is away from the maximum value R of the distance at the center of rotary shaft 47b.That is, from cover 60 Volume to the space of the outer peripheral surface of motor body 47a is small.Therefore, though motor 47 catch fire in the case where, from cover 60 to Also it is easy fire extinguishing in the space of the outer peripheral surface of motor body 47a, can inhibit and spread to 47 surrounding of motor.

(3-2)

In the indoor unit 40 of the air-conditioning device of second embodiment, the outside of the outer peripheral surface of motor body 47a is covered At least 70% or more cover 60 is also covered from motor body 47a foot 47c outstanding.Thereby, it is possible to inhibit the week in foot 47c Enclose the gap for generating and linking up the outside of the outer peripheral surface of motor body 47a and motor 47.Therefore, even if catching fire in motor 47 In the case where, it also can more reliably inhibit to spread.

(3-3)

In the indoor unit 40 of the air-conditioning device of second embodiment, it is configured to not make cover 60 and motor since 60 will be covered 47 are close to and vacate gap between them, therefore, it can be ensured that the thermal diffusivity of motor 47.

(3-4)

In the indoor unit 40 of the air-conditioning device of second embodiment, the periphery of motor body 47a is covered using cover 60 The outside in face at least 70% or more, and the end locally quilt cover on the direction that rotary shaft 47b extends of motor body 47a 60 ring-shaped flat face 61 covers.Even if the fire can also be further suppressed to motor 47 in the case where motor 47 catches fire as a result, Around spread.

<for implementing the third embodiment of the utility model>

(1) basic structure of the indoor unit of air-conditioning device

The appearance of the on-wall type indoor unit 70 of the third embodiment of the utility model is shown in Figure 12.Such as Figure 13 institute Show, the indoor unit 70 of the air-conditioning device has shell 72, heat exchanger 73 and cross flow fan 74 etc..

Shell 72 also has bottom frame 72a other than front panel and side plate, is equipped with heat exchanger 73 in bottom frame 72a With cross flow fan 74.

Heat exchange is carried out between heat exchanger 73 and the air passed through.Cross flow fan 74 is located at the shape for forming the shape of falling V Heat exchanger 73 lower section.Cross flow fan 74 makes the air from indoor sucking encounter heat exchanger 73 and pass through, and from below It is blown out to interior.

Respective lower section is configured with drain pan 75,76 before and after heat exchanger 73, and the drain pan 75,76 is for accepting The dew dripped from heat exchanger 73.

(2) detailed construction of the cover of motor and covering motor

(2-1) motor

Motor 77 includes cylindric motor body 77a, resin molded to have coil；With rotary shaft 77b, from motor Main body 77a is prominent.The end of cross flow fan 74 is fixed in the end of rotary shaft 77b.

(2-2) cover

As shown in figure 14, the cover of stainless steel is divided into the first cover 80 and the second cover 90.These covers 80,90 are in motor 77 Rotary shaft 77b direction on be covered on motor 77 from front and back.Under setting state shown in figure 15, a pair of cover 80,90 covers The outside at least 70% or more of the outer peripheral surface of lid motor body 77a.Here, it realizes the outer of the outer peripheral surface of motor body 77a The state that side nearly all covers.

In addition, a pair of of cover 80,90 is also by the end 77f and its opposite side of the prominent side the rotary shaft 77b of motor body 77a End 77g also locally cover.

First cover 80 includes ring-shaped flat face 81, offers the hole passed through for rotary shaft 77b at its center；With canister portion 83, It extends from the periphery of ring-shaped flat face 81.Ring-shaped flat face 81 covers the end of the prominent side rotary shaft 77b of motor body 77a Portion 77f.

Second cover 90 includes ring-shaped flat face 91；With canister portion 93, extend from the periphery of ring-shaped flat face 91.Ring-shaped flat Face 91 covers the end 77g of motor body 77a.

As shown in figure 16, the canister portion 83 of the first cover 80 covers 90 canister portion 93 in the outer peripheral surface of motor body 77a with second Outside partially overlaps each other.Gap size D1 radially between canister portion 83 and canister portion 93 is 1mm or less.In addition, aftermentioned Gap size D2, the motor body 77a and the of the canister portion 83 of the arcuate part of front and back drain pan connecting component 79 and the first cover 80 The gap size D3 of the canister portion 93 of two covers 90 is 1mm or less.

As shown in figure 15, be covered in two cover 80,90 in the state of motor 77 be positioned in resin motor bearing On component 78a, 78b, 78c.These motor carrier parts 78a, 78b, 78c are fixed on the bottom frame 72a of above-mentioned shell 72.

In addition, in the top for being covered in the motor 77 of two covers 80,90 configured with front and back drain pan connecting component 79, it is described The end of above-mentioned drain pan 75,76 is joined to one another by front and back drain pan connecting component 79.Drain pan connects before and after this Component 79 is formed with drainage channel 79a, and the drainage channel 79a is for making water flow to face side from the drain pan 75 of back side Drain pan 76 (referring to Fig.1 5).

(3) feature

(3-1)

In the indoor unit 70 of the air-conditioning device of third embodiment, due to being configured in the periphery of motor body 77a First cover 80 in the outside in face and the second cover 90 cover at least 70% or more of the outer peripheral surface of motor body 77a, therefore, even if In the case where 17 internal fires of motor, also it is able to suppress around the fire spread to motor 77.

In addition, being less than the rotation from motor 77 from the average value of the distance of the outer peripheral surface of two covers 80,90 to motor body 77a The outer rim of motor body 77a when the direction observation that shaft 77b extends is away from the maximum value of the distance at the center of rotary shaft 77b.That is, Volume from cover 80,90 to the space of the outer peripheral surface of motor body 77a is very small.Therefore, even if the case where motor 77 catches fire Under, it also can inhibit and spread around motor 77.

If being easy the motor of the reason of finding out fire unit 70 indoors also, in the case where fire occurs indoors 77, still there are ignition causes for the outside of unit 70 indoors.

(3-2)

In the indoor unit 70 of the air-conditioning device of third embodiment, the cover of covering motor 77 has been divided into the first cover 80 and second cover 90.Also, as shown in figure 16, the first cover 80 and the second cover 90 part in the state of covering motor body 77a Ground overlapping.

Here, due to use segmenting structure cover, indoors in the assembling work of unit 70, cover motor master Time needed for the process of body 77a shortens.Further, since the first cover 80 and second in the state of covering motor body 77a Cover 90 is locally overlapped, therefore, even if also hardly having the fire in the case where motor 77 catches fire and emerging to the outside of cover Possibility.

(4) variation

In above-mentioned third embodiment, using on the direction of the rotary shaft 77b of motor 77 from front and rear covers in horse Up to the first cover 80 and the second cover 90 on 77, but the method for the segmentation of cover can also be changed as illustrated in fig. 17.

Third cover 180 shown in Figure 17 and the 4th cover 190 from two side covers radially motor 77 motor body 77a On.It is formed with half cycle face 183 between the planar portions 181,189 of the semicircle shape of third cover 180, covers motor body 77a The upper half.It is formed with half cycle face 193 between the planar portions 191,199 of the semicircle shape of the 4th cover 190, covers motor master The lower half of body 77a.The outer peripheral surface of motor body 77a is by half circumferential surface of the half cycle face 183 of third cover 180 and the 4th cover 190 Portion 193 covers.State is arranged shown in Figure 18 in the half cycle face 183 of third cover 180 and the half cycle face 193 of the 4th cover 190 Under respective end overlap each other.The end 77f of the prominent side the rotary shaft 77b of motor body 77a is by the plane of third cover 180 The planar portions 191 of portion 181 and the 4th cover 190 cover.The end 77g of the opposite side of motor body 77a is by the plane of third cover 180 The planar portions 199 of portion 189 and the 4th cover 190 cover.

Even if can also be obtained in the case where using third cover 180 shown in such Figure 17 and Figure 18 and the 4th cover 190 To function and effect same as above-mentioned third embodiment.Even if also can inhibit in the case where motor 77 catches fire to motor It is spread around 77.

In addition, in above-mentioned third embodiment, using the cover for being divided into the first cover 80 and the second cover 90, but It can use and be divided into three covers with upper-part.

Claims (10)

1. a kind of indoor unit of air-conditioning device, which is characterized in that

The indoor unit (10,40,70) of the air-conditioning device has:

Shell (12,42,72)；

Fan (14,44,74), is configured in the shell；

Motor (17,47,77,170), with tubular motor body (17a, 47a, 77a) and rotary shaft (17b, 47b, 77b), the rotary shaft (17b, 47b, 77b) is prominent from the motor body and is fixed in the fan, and the motor makes institute State fan rotation；With

The cover (30,60,80,90,130,230) of anti-flammability, covers the outside at least 70% of the outer peripheral surface of the motor body More than,

The cover is formed, the distance (G1, G2, G3) of the outer peripheral surface from the cover to the motor body it is flat The outer rim (17ae) of motor body when mean value is less than from the direction that the rotary shaft extends is away from the rotary shaft The maximum value (R) of the distance at center (O).

2. the indoor unit of air-conditioning device according to claim 1, which is characterized in that

The motor (17,47) also has from motor body foot outstanding (17c, 47c),

The foot is fixed in motor carrier (12a, 42a), and the motor carrier (12a, 42a) is the one of the shell Part is either installed in the component of the shell,

It is described to cover the side opposite with the motor body side for also covering the foot.

3. the indoor unit of air-conditioning device according to claim 1 or 2, which is characterized in that

The motor (17) also has first part (17d) electric wire outstanding (17e) from the motor body,

The cover (30,60,130,230) be formed with opening for passing through the electric wire or notch (33a, 63a, 133a、233a)。

4. the indoor unit of air-conditioning device according to claim 3, which is characterized in that

The cover (130) is configured to relative to the motor body, when from the direction that the rotary shaft extends, is formed in The opening of the cover (130) or the notch (133a) are formed from being surrounded by first straight line (L1) and second straight line (L2) Region (S) deviate, wherein the first straight line (L1) is by one end of center (O) and the first part of the rotary shaft (17d1) is linked up, and the second straight line (L2) is by the other end at the center of the rotary shaft and the first part (17d2) is linked up.

5. the indoor unit of air-conditioning device according to claim 1 or 2, which is characterized in that

The cover is configured to relative to the motor body, it is described cover the motor between vacate gap (G1, G2, G3、···)。

6. the indoor unit of air-conditioning device according to claim 1, which is characterized in that

The motor also has foot (170c), and the foot (170c) is fixed in motor carrier (12a), the motor branch Bearing portion (12a) is that a part of the shell is either installed in the component of the shell,

Opening or notch (233b) for passing through the foot are formed in the cover (230).

7. the indoor unit of air-conditioning device according to claim 6, which is characterized in that

The cover (230) is fixed in the motor (170).

8. the indoor unit of air-conditioning device according to claim 1 or 2, which is characterized in that

It is described cover also locally cover the motor body on the direction that the rotary shaft extends end (17f1,17f2, 47f、77f、77g)。

9. the indoor unit of air-conditioning device according to claim 1 or 2, which is characterized in that

The cover is divided into more than two components including the first component (80,180) and second component (90,190),

The first component is locally be overlapped in the state of covering the motor body with the second component.

10. the indoor unit of air-conditioning device according to claim 1 or 2, which is characterized in that

The cover is configured to relative to the motor body, vacates gap between the cover and the fan.