CN109642582A - Air conditioner - Google Patents

Abstract

A kind of air conditioner is provided, by from previous different structure, inhibit the decline of the performance as caused by the axial-flow fan of air conditioner.In the section by YZ plane cutting air conditioner (1), the distance between the second surface (15f) of enclosure (15) and axial-flow fan (14) (G2) are smaller than the distance between the first surface (16f) of stabilizer (16) and axial-flow fan (14) (G1).In above-mentioned section, indicate that the section of the inclined surface (161) in the inclined surface (161) on the surface of boundary portion or the first crosspoint (P1) of first surface (16f) and inclined surface (161) has and first surface (16f) obtuse-angulate relationship.The relationship is set up at least part of at least part and first surface (16f) of the range of the circumferential length along axial-flow fan (14) of boundary portion and the range of the step of second surface (15f).

Description

Air conditioner

Technical field

The present invention relates to the air conditioners for having axial-flow fan.

Background technique

In some air conditioners (such as: the air conditioner with wall indoor unit), as pressure fan, use There is axial-flow fan (also referred to as cross flow fan).Also, in this kind of air conditioner, along the axial direction of axial-flow fan, it is provided with Stabilizer (also referred to as tongue).Stabilizer is the stabilisation for realizing the forced vortex of the air generated by the rotation of axial-flow fan Component.

In recent years, for the purpose of the raising of the performance of air conditioner, the vented construction to the periphery of axial-flow fan is proposed The various technologies improved.For example, in patent document 1, disclosing a kind of low power consumption and low noise with air conditioner Sound turns to the technology of purpose.

More specifically, in the air conditioner of patent document 1, (i) is provided with pair opposed with axial-flow fan Set the impact walls in face；The inclined surface of side edge part in the fan that (ii) and the opposed faces are intersected with obtuse angle.In the sky of patent document 1 In controlled atmosphere section machine, by the way that above-mentioned inclined surface is arranged, it is suppressed that in the generation of the vortex of the air-flow of the position of the inclined surface.

In addition, in patent document 2, disclosing a kind of surge of end with the axial direction for preventing axial-flow fan (when air-supply Abnormal sound generation) for the purpose of technology.More specifically, it in the air conditioner of patent document 2, is provided in stabilizer (i) with the major part of first opposed faces (opposed faces positioned at the both ends of stabilizer between) opposed with axial-flow fan； The second opposed faces (opposed faces positioned at the both ends of stabilizer) (ii) opposed with axial each end of the axial-flow fan. Also, the second opposed faces is made to be located at the position for leaning on axial-flow fan side than the first opposed faces.The purpose of the positional relationship is, is passing through The axial end (circulation vortex easily becomes unstable position) of flow fan, stablizes circulation vortex.

Existing technical literature

Patent document

Patent document 1: No. 2013/031046 bulletin of International Publication No. (on March 7th, 2013 is open)

Patent document 2: Japanese Unexamined Patent Publication " special open 2016-50720 bulletin (on April 11st, 2016 is open) "

Summary of the invention

The technical problems to be solved by the invention

It is well known, however, that axial-flow fan is the lower pressure fan of static pressure ratio.Also, due to axial-flow fan with formed air supply path The discontiguous mode of wall surface rotate, therefore in the axial end from axial-flow fan towards outside, necessarily form that there is no pass through The space of the wheel blade (blade) of flow fan.Therefore, the static pressure distribution (static pressure for the air sent out from axial-flow fan of axial-flow fan Spatial distribution) easily become uneven.

In turn, in the non-uniform situation of the static pressure distribution of axial-flow fan, when producing pressure in the lesser position of static pressure In the case where loss, it is possible to produce the abnormal sound as caused by surge.Like this, non-uniform in the static pressure distribution of axial-flow fan In the case of, it is possible to it has a negative impact to the performance of air conditioner.

Therefore, the countermeasure as the homogenization for the static pressure distribution for realizing axial-flow fan uses setting and surrounds axial-flow fan Side works (enclosure) structure.For example, in order to be effectively prevented surge, enclosure is set to the axis of axial-flow fan To end.However, in the case where being provided with the enclosure, when axial-flow fan is rotated with defined revolving speed, by the through-flow The flow decline for the air that fan is sent out.

Therefore, in order to obtain defined flow, need to make the revolving speed of axial-flow fan to increase, so as to cause the axial-flow fan Electric power is consumed to increase.Also, due to increasing the revolving speed of axial-flow fan, it is also possible to increase noise or the reduction of air conditioner Ventilation it is rectification etc..

Further, as described later, than between stabilizer and axial-flow fan at a distance from enclosure is between axial-flow fan Distance it is short in the case where, be also easy to produce the disorder of air-flow, the performance decline of air conditioner (especially the increase of consumption electric power and The generation of abnormal sound) become significant.

One embodiment of the present invention is made in view of the above problems, and its object is to utilize and previous different knot Structure inhibits the decline of the performance as caused by the axial-flow fan of air conditioner.

The means solved the problems, such as

In order to solve the above problems, air conditioner involved in one embodiment of the present invention is that one kind has axial-flow fan Air conditioner, have: enclosure surrounds the side of the axial end of above-mentioned axial-flow fan；And stabilizer, Along above-mentioned axial arrangement, using it is vertical with the depth direction of above-mentioned air conditioner and with aforementioned stable device along above-mentioned The plane axially intersected, and cut off the section of the air conditioner, consider to indicate it is opposed with above-mentioned axial-flow fan it is above-mentioned surely Determine the first surface on the surface of device and indicates the feelings of the second surface on the surface of the above-mentioned enclosure opposed with above-mentioned axial-flow fan Under condition, boundary portion, above-mentioned second surface and above-mentioned axial-flow fan are formed between above-mentioned first surface and above-mentioned second surface The distance between i.e. second distance it is small i.e. compared with first distance with above-mentioned first surface with the distance between above-mentioned axial-flow fan, In the case where the third surface on surface for further considering to indicate the above-mentioned boundary portion opposed with above-mentioned axial-flow fan, above-mentioned third The section on surface or above-mentioned first surface and the above-mentioned third surface in first crosspoint on above-mentioned third surface have with it is above-mentioned The obtuse-angulate relationship of first surface, above-mentioned relation are by the circumferential length along above-mentioned axial-flow fan in above-mentioned boundary portion At least part of the range of the step of at least part of range and above-mentioned first surface and above-mentioned second surface is set up.

In addition, in order to solve the above problems, air conditioner involved in one embodiment of the present invention is that have through-flow wind The air conditioner of fan, has: enclosure, surrounds the side of the axial end of above-mentioned axial-flow fan；And stabilizer, Its along above-mentioned axial arrangement, using it is vertical with the depth direction of above-mentioned air conditioner and with aforementioned stable device along upper The plane axially intersected is stated, and cuts off the section of the air conditioner, is considering to indicate opposed with above-mentioned axial-flow fan above-mentioned The first surface on the surface of stabilizer and indicate the above-mentioned enclosure opposed with above-mentioned axial-flow fan surface second surface In the case of, boundary portion, above-mentioned second surface and above-mentioned through-flow wind are formed between above-mentioned first surface and above-mentioned second surface The distance between fan i.e. second distance is small compared with the distance between above-mentioned axial-flow fan i.e. first distance with above-mentioned first surface, In the case where the third surface on the further surface for considering to indicate the above-mentioned boundary portion opposed with above-mentioned axial-flow fan, above-mentioned the The section on three surfaces or above-mentioned first surface and the above-mentioned third surface in first crosspoint on above-mentioned third surface have with it is upper The obtuse-angulate relationship of first surface is stated, above-mentioned relation is by the circumferential length along above-mentioned axial-flow fan in above-mentioned boundary portion Range at least part and above-mentioned first surface and above-mentioned second surface step range at least part at Vertical, above-mentioned boundary portion constitutes a part of above-mentioned enclosure.

Invention effect

Related air conditioner according to one method of the present invention, by from previous different structure, playing can To inhibit effect as the decline of the performance as caused by the axial-flow fan of air conditioner.

Detailed description of the invention

Fig. 1 is the perspective view for showing the appearance of positive direction of air conditioner involved in embodiments of the present invention 1.

(a) of Fig. 2 is the top view of the air conditioner of Fig. 1, and (b) of Fig. 2 is the main view of the air conditioner.

(a) of Fig. 3 is the perspective view for showing the appearance of the back side direction of air conditioner of Fig. 1, and (b) of Fig. 3 is in Fig. 3 (a) perspective view of the diagram of the back side casing and heat exchanger that are omitted on the basis of.

Fig. 4 is the perspective view that the diagram of axial-flow fan has further been omitted on the basis of Fig. 3 (b).

Fig. 5 is the A-A regarding sectional view of Fig. 2 (a).

Fig. 6 is the B-B direction view cross-sectional view of Fig. 2 (b).

Fig. 7 is the enlarged drawing of the region D3 in Fig. 6.

(a) of Fig. 8 is the enlarged drawing of the region D1 in Fig. 4, and (b) of Fig. 8 is the enlarged drawing of the region D2 in Fig. 5, (c) of Fig. 8 It is the other examples of the enlarged drawing of the region D2 in Fig. 5.

(a) of Fig. 9 is in the air conditioner as the comparative example of air conditioner involved in embodiments of the present invention 1 The enlarged drawing of region D1, (b) of Fig. 9 are the enlarged drawings of the region D2 in the air conditioner.

(a) of Figure 10 is in the air conditioner as the variation of air conditioner involved in embodiments of the present invention 1 Region D1 enlarged drawing, (b) of Figure 10 is the enlarged drawing of the region D2 in the air conditioner.

(a) of Figure 11 is the enlarged drawing of the region D1 in air conditioner involved in embodiments of the present invention 2, Figure 11's (b) be region D2 in the air conditioner enlarged drawing.

(a) of Figure 12 is in the air conditioner as the variation of air conditioner involved in embodiments of the present invention 2 Region D1 enlarged drawing, (b) of Figure 12 is the enlarged drawing of the region D2 in the air conditioner.

(a) of Figure 13 is the enlarged drawing of the region D1 in air conditioner involved in embodiments of the present invention 3, Figure 13's (b) be region D2 in the air conditioner enlarged drawing.

(a) of Figure 14 is in the air conditioner as the variation of air conditioner involved in embodiments of the present invention 3 Region D1 obtain enlarged drawing, (b) of Figure 14 is the enlarged drawing of the region D2 in the air conditioner.

Specific embodiment

(embodiment 1)

Hereinafter, being described in detail based on FIG. 1 to FIG. 9 to embodiments of the present invention 1.Firstly, referring to Fig.1~Fig. 7, to this The brief configuration of the air conditioner 1 of embodiment is described.

In addition, in the present embodiment, exemplify by indoor unit and outdoor unit at split type wall hanging type air tune Indoor unit, that is, air conditioner 1 of section machine is illustrated.But air conditioner was both involved in one embodiment of the present invention It can be installing type in ceiling, be also possible to console mode, can also be that (window is empty for the indoor special machine formula without outdoor unit Adjust etc.).

In addition, the various parts of air conditioner 1 are shown in each attached drawing (especially Fig. 5 etc.) described below, but To the component omission explanation unrelated with present embodiment.Omitting above explained component can be understood as and well known component phase Together.In addition, respectively the purpose of the drawings is to schematically illustrate the shape of each component, construction and positional relationship, it is desirable to note that being It is not drawn necessarily to scale.

(summary of air conditioner 1)

Fig. 1 is the perspective view for showing the appearance of positive direction of air conditioner 1.As shown in Figure 1, air conditioner 1 is as outer The component parts of side has air-flow panel 11 and casing 12 (shell).Air-flow panel 11 is supported on casing in a manner of to be opened/closed 12。

In addition, being installed on the air conditioner 1 of wall surface from front (front) in Fig. 1, ceiling side being set as On, bottom plate side is set as down, the length direction of air conditioner 1 is further set as left and right directions.In addition, will be from air conditioning The direction of the back side (the inside) towards the front surface of machine 1 is known as depth direction.

Hereinafter, left and right directions is also known as X-direction, depth direction is known as Y-direction, up and down direction is known as Z-direction.This In, the positive direction of X-direction is set as right direction.Also, the positive direction of Y-direction is set as front direction.Also, by Z-direction Positive direction be set as direction.In the present embodiment, come by mutually orthogonal directions of X-direction, Y-direction and Z-direction It is illustrated.

Air-flow panel 11 provides the flow path of the air-flow to indoor blowout.The operating shape of air-flow panel 11 and air conditioner 1 State correspondingly, is opened and closed by the control (not shown) of the control device in air conditioner 1.The case where air-flow panel 11 is opened Under, the blow-off outlet as above-mentioned flow path exposes.

In addition, also can be set acceptance part (input unit) in casing 12, which is received from receiving behaviour from the user Make the light such as the infrared ray that the remote controler indicated projects.Also, it may be provided for notifying user in various letters in casing 12 The notification unit (such as: display unit, lamp, loudspeaker) of breath.

(a) of Fig. 2 and (b) of Fig. 2 are the top view and main view of air conditioner 1 respectively.In addition, press (a) of Fig. 2 Shown in A-A regarding sectional view Fig. 5 as be described hereinafter.Also, by shown in the B-B direction of (b) of Fig. 2 view cross-sectional view Fig. 6 as be described hereinafter.

As shown in (a) of Fig. 2, in upper surface (more particularly, the opening face of air conditioner 1 of air conditioner 1 The upper surface of plate), it is provided with the air suction inlet of clathrate.The brief opening shape of air suction inlet entirety is along the side X To elongated rectangle.

Also, in the top of the inside of air conditioner 1, it is provided with heat exchanger 13 (also referring to aftermentioned Fig. 6).Heat is handed over Parallel operation 13 plays a role as the evaporator for making refrigerant gasify in refrigeration operation, absorbs heat from indoor air.Another party Face, heat exchanger 13 as in heating operation as making the condenser of cooling medium liquefaction play a role, to indoor release heat.

(a) of Fig. 3 is the perspective view for showing the appearance of the back side direction of air conditioner 1 of Fig. 1.Such as (a) institute of Fig. 3 Show, at the back side of air conditioner 1, the component of each component as the inside for protecting air conditioner 1 is provided with the back side Casing 121 (a part of casing 12).

(b) of Fig. 3 is the solid that the diagram of back side casing 121 and heat exchanger 13 is omitted on the basis of Fig. 3 (a) Figure.As shown in (b) of Fig. 3, in the inside of air conditioner 1, it is provided with axial-flow fan 14 and motor 141.

Axial-flow fan 14 has the central axis parallel with X-direction, and can be around the center axis rotation.Also, axial-flow fan 14 circumferentially have multiple blades (not shown) for sucking and sending out air.Axial-flow fan 14 is around center axis rotation, thus Indoor air is sucked from air suction inlet, and is generated from air-flow panel 11 to the air-flow of indoor blowout.In addition, aftermentioned In Fig. 6, as an example of the air-flow, air-flow W is shown.As shown in fig. 6, the path that air-flow W successively passes through are as follows: air is inhaled Entrance, heat exchanger 13, axial-flow fan 14 and air-flow panel 11.

Motor 141 is the driving device for rotating axial-flow fan 14 with defined revolving speed.Motor 141 passes through motor drive shaft 142 (referring to Fig. 6 etc.) is connect with axial-flow fan 14.The revolving speed (in other words, the revolving speed of axial-flow fan 14) of motor 141 is by air conditioning Control device control in machine 1.Also, the amount that the air of the inside of axial-flow fan is drawn by heat exchanger 13 depends on The revolving speed of axial-flow fan 14.Therefore, by controlling the revolving speed of motor 141, the air quantity to indoor air-supply can be adjusted.

Fig. 4 is the perspective view that the diagram of axial-flow fan 14 is omitted on the basis of Fig. 3 (b).As shown in figure 4, in sky The inside of controlled atmosphere section machine 1, is provided with enclosure 15 and stabilizer 16.In addition, the enlarged drawing about the region D1 in Fig. 4, rear It is described in detail in (a) of the Fig. 8 stated.

In addition, enclosure 15 can also be made of with stabilizer 16 component of one.The shadow part of Fig. 4 is indicated to constitute and be surrounded The component of the one of a part and stabilizer 16 in portion 15.In the present embodiment, exemplify enclosure 15 and stabilizer 16 by The case where component composition of one, is illustrated (reference: (b) of aftermentioned Fig. 8).But enclosure 15 and stabilizer 16 (reference: (c) of aftermentioned Fig. 8) can be constituted by seperated component.

Enclosure 15 is to surround the component of the side of the end of axial direction (X-direction) of axial-flow fan 14.As described above, surrounding Portion 15 is to be arranged in order to prevent in the surge that the axial end of axial-flow fan 14 generates.

Stabilizer 16 extends in X direction, has the width almost equal with the axial width of axial-flow fan 14, and have There is the length of circumferential a part along axial-flow fan 14, it is facing at a distance from small with being spaced apart for axial-flow fan 14.Surely Determine device 16 and is also referred to as tongue.Stabilizer 16 is the component provided from axial-flow fan 14 towards the ventilating path of air-flow panel 11. Make the air swirl generated by the rotation of axial-flow fan 14 in the position for the flowing for being suitable for desired wind that is, stabilizer 16 plays Set stabilized effect.

Fig. 5 is the A-A regarding sectional view by (a) of above-mentioned Fig. 2.It is utilized and air conditioner 1 that is, Fig. 5 is shown The vertical plane of depth direction (Y-direction) (the XZ plane more specifically, intersected along the X direction with stabilizer 16), by the sky Section after the cutting of controlled atmosphere section machine 1.Hereinafter, the section is also known as the first section.In addition, the enlarged drawing of the region D2 in Fig. 5 Shown in (b) of Fig. 8 as be described hereinafter.About the construction of the boundary portion between the enclosure 15 in present embodiment and stabilizer 16, Referring to Fig. 8, it is described in detail later.

Fig. 6 is to regard cross-sectional view by the B-B direction of (b) of above-mentioned Fig. 2.It is utilized and air conditioner 1 that is, Fig. 6 is shown The vertical plane of length direction (X-direction) (the YZ plane more specifically, intersected along the Y direction with enclosure 15), by the sky Section after the cutting of controlled atmosphere section machine 1.In order to distinguish with above-mentioned first section, which can also be referred to as the second section.

In addition, Fig. 7 is the enlarged drawing of the region D3 in Fig. 6.In addition, the line L1 in Fig. 7 indicates the outer wall of enclosure 15 Crest line.As shown in fig. 7, there are gap, (first is empty between the outer surface of axial-flow fan 14 and the inner surface of stabilizer 16 Gap).The first gap is located in the region for providing ventilating path by stabilizer 16.Therefore, in the first gap, from through-flow wind The Second gap that the flow-rate ratio for the air that fan 14 is sent out is following is more.In addition, the inner surface of stabilizer 16 is right with axial-flow fan 14 The surface set, therefore the opposed faces of also referred to as stabilizer 16.

Similarly, there is also there is gap, (second is empty between the outer surface of axial-flow fan 14 and the inner surface of enclosure 15 Gap).The Second gap is located in the region for not providing ventilating path by stabilizer 16.Therefore, in the Second gap, from passing through The first gap that the flow-rate ratio for the air that flow fan 14 is sent out is above-mentioned is few.In addition, the inner surface of enclosure 15 is and axial-flow fan 14 opposed surfaces, therefore the opposed faces of also referred to as enclosure 15.

In addition, as shown in fig. 7, and referring to (b) of Fig. 8 and as described later, in air conditioner 1, enclosure 15 with The distance between axial-flow fan 14 (length of Second gap) is than the distance between stabilizer 16 and axial-flow fan 14 (first gap Length) it is short.As described below like that, in this case, it is also easy to produce the disorder of air-flow, the performance decline of air conditioner becomes Significantly.

However, in this case, the angle in the region of the near border by suitably setting stabilizer and enclosure is come Inhibit the performance of air conditioner to decline such technical idea, does not both have in above-mentioned patent document 1 and patent document 2 and appoint What is open, does not also provide any technical inspiration.

On the other hand, as described below like that, air conditioner 1 suitably sets above-mentioned angle to pass through, on inhibiting It states for the purpose of the disorder of air-flow and constitutes.

(comparative example)

Then, in order to more clearly illustrate present embodiment air conditioner 1 effect, to the ratio of the air conditioner 1 It is described compared with example.Hereinafter, the air conditioner as the comparative example is known as air conditioner 1x.The base of air conditioner 1x This structure is identical as air conditioner 1, but enclosure is different with air conditioner 1 from the construction of the boundary part of stabilizer.This It outside, is also same about this point, in the air conditioner involved in each embodiment and each variation described below.

Hereinafter, being described referring to Fig. 9 to the construction of the above-mentioned boundary part in air conditioner 1x.(a) of Fig. 9 be The enlarged drawing of the region D1 of Fig. 4 in air conditioner 1x.Also, (b) of Fig. 9 is the region of Fig. 5 in air conditioner 1x The enlarged drawing of D2.

As shown in figure 9, air conditioner 1x aftermentioned inclined surface 161 be not provided with (referring to Fig. 8) in stabilizer this It is different from air conditioner 1 on a bit.Here, for the differentiation of the stabilizer 16 with air conditioner 1, by air conditioner The stabilizer of 1x is known as stabilizer 16x.

In addition, in the first section, the surface for indicating the opposed faces of stabilizer 16x is known as first as shown in (b) of Fig. 9 Surface 16xf.Also, the opposed faces of enclosure 15 are known as second surface 15f.In turn, in the first section, by first surface The distance between 16xf and axial-flow fan 14 (length of above-mentioned first gap) are known as distance G1 (first distance).Also, by The distance between two surface 15f and axial-flow fan 14 (length of above-mentioned Second gap) are known as distance G2 (second distance).

In the first section, distance G1 and G2 are respectively the distance of Z-direction (short transverse).Also, distance G1 and G2 distinguish For value certain in the X direction.Moreover, distance G2 ratio distance G1 is small.

Therefore, there are the steps of Z-direction between stabilizer 16x and enclosure 15.That is, in stabilizer 16x and enclosure Boundary portion is formd between 15, which is to form the region of the step of Z-direction.Above-mentioned step in air conditioner 1x It is made of the inner wall of the casing 12 extended along Z-direction.Hereinafter, first section of (b) in Fig. 9, will indicate the surface of the inner wall Referred to as normal surface 191x.

Here, in the first section, the crosspoint of first surface 16xf and normal surface 191x are known as the first crosspoint P1.And And the crosspoint of second surface 15f and normal surface 191x are known as the second crosspoint P2.In turn, by normal surface 191x and first Surface 16xf angulation is expressed as θ.As shown in (b) of Fig. 9, in air conditioner 1x, in the first section, due to orthogonal Face 191x is orthogonal with first surface 16xf, therefore is θ=90 °.

In addition, in air conditioner 1x, due to θ=90 °, the height Hx table of the normal surface 191x in the first section It is shown as Hx=G1-G2.That is, in air conditioner 1x, due to θ=90 °, in first surface 16xf and second surface 15f Between, exist along the biggish step of Z-direction (the normal surface 191x of the step as height Hx).Therefore, in the first section, first There are normal surface 191x with second surface 15f by surface 16xf, thus do not have smooth continuity in z-direction.Also, at angle In the case where spending θ for acute angle (in the case where 90 ° of θ <), first surface 16xf and second surface 15f does not also have in z-direction There is smooth continuity to have.

Therefore, in the case where angle, θ is not obtuse angle, (in the case where θ≤90 °), generation is led because of normal surface 191x The disorder of the air-flow between enclosure 15 and stabilizer 16x sharply caused.As a result, creating the problem that because of the air-flow Disorder caused by air conditioner 1x performance decline (especially consumption electric power increase and abnormal sound generation) become aobvious It writes.

In addition, angle, θ is the section of the normal surface 191x of the first crosspoint P1 in the case where normal surface 191x is curved surface With first surface 16xf angulation.It is curved surface (for example, the convex surface swelled to the negative direction of X-direction) in normal surface 191x In the case where, when angle, θ is not obtuse angle, also generate the above problem.

(boundary between the enclosure 15 in air conditioner 1 and stabilizer 16)

Based on problem above, inventor herein newly comes up with a kind of structure of air conditioner 1, the structure for reducing because The disorder of the air-flow generated caused by the difference of axial-flow fan 14 and enclosure 15 and each distance of stabilizer 16 is (as encirclement The construction of the boundary portion in the region of the near border of portion 15 and stabilizer 16).Hereinafter, referring to Fig. 8, in air conditioner 1 The construction of boundary portion is described.

Boundary portion involved in one embodiment of the present invention have following purpose: eliminate or slow down comparative example in stabilizer The step of existing Z-direction between 16x and enclosure 15 makes the first surface 16f (aftermentioned) of stabilizer 16, with enclosure 15 Second surface 15f possesses smooth continuity.The boundary portion is become by the shape change of stabilizer 16, the shape of enclosure 15 More or using the other component added between stabilizer 16 and enclosure 15 realize.Hereinafter, specific to one of boundary portion Example is illustrated.

(a) of Fig. 8 is the enlarged drawing of the region D1 of Fig. 4 in air conditioner 1.Also, (b) of Fig. 8 is air conditioning The enlarged drawing of the region D2 of Fig. 5 in machine 1.Also, (c) of Fig. 8 is the other examples of the enlarged drawing of region D2.It is specific and Speech, in (b) of Fig. 8, exemplify enclosure 15 a part and stabilizer 16 by one component constitute the case where.Another party Face exemplifies the case where enclosure 15 is made of with stabilizer 16 seperated component in (c) of Fig. 8.In addition it is also possible to wrap The entirety for enclosing portion 15 is made of with stabilizer 16 component of one.

As shown in figure 8, in a part of the opposed faces of stabilizer 16, being provided with inclined surface 161 in air conditioner 1 (third surface).In addition, the first section shown in (b) of Fig. 8, is known as first for the surface for indicating the opposed faces of stabilizer 16 Surface 16f.

Inclined surface 161 constitutes a part of stabilizer 16, can both have been changed by the shape of stabilizer 16 to be formed, can also To be formed by the other component with the bonding of the end of stabilizer 16.Specifically, inclined surface 161 be formed as height with from In other words the face that stabilizer 16 is got higher towards enclosure 15 is formed as close to the face of axial-flow fan 14.In addition, in this implementation In mode, the case where inclined surface 161 is plane is exemplified to be illustrated, but the inclined surface 161 is also possible to curved surface.Inclined surface As long as 161 are arranged to meet aftermentioned corner condition.About this point, in each embodiment and each deformation described below It is also same in the inclined surface of air conditioner involved in example.

As shown in (b) of Fig. 8, in air conditioner 1, the first surface 16f and enclosure 15 of stabilizer 16 will be constituted The part on boundary of second surface 15f be known as boundary portion 191.In the first section, boundary portion 191 is by normal surface 171 and inclination Face 161 is constituted.That is, inclined surface 161 constitutes a part of boundary portion 191.In addition, normal surface 171 is the casing extended along Z-direction 12 inner wall.Also, the surface of the boundary portion 191 opposed with axial-flow fan 14 is also referred to as third surface.In present embodiment In, inclined surface 161 is third surface.

In addition, in the specification of the present application, it is desirable to pay attention to " face A is opposed with face B " this words and phrases and refer not only to face A and face B Be parallel to each other the positional relationship of (that is, the normal line vector nB of the normal line vector nA and face B of face A is parallel to each other).

Specifically, in the specification of the present application, " face A is opposed with face B " refer to normal line vector nA and normal line vector nB at Angle (that is, the inner product of normal line vector nA and normal line vector nB is not zero) in addition to 90 deg..

Here, in the first section, inclined surface 161 and first surface 16f angulation are expressed as θ.In air conditioning In machine 1, inclined surface 161 is arranged to meet 90 ° of θ >.Like this, in air conditioner 1, a part of boundary portion 191 is constituted For with first surface 16f at obtuse angle.At this point, the platform of the boundary portion 191 of air conditioner 1 and above-mentioned air conditioner 1x Rank portion (normal surface 191x) is different.

In addition, the shape of stabilizer 16 is designed in advance in the air conditioner involved in one embodiment of the present invention At including the inclined surface 161 at above-mentioned angle, θ.In this case, stabilizer 16 is manufactured by being integrally formed, thus, it is possible to height The manufacture of effect ground includes the stabilizer 16 of the inclined surface 161.Alternatively, carrying out additional inclined surface to a part of aforementioned stable device 16x Thus 161 processing can also manufacture the stabilizer 16 comprising inclined surface 161.About this point, in inclining for aftermentioned variation It is also same in inclined-plane 161a.

In addition, in the first section, by the friendship of first surface 16f and boundary portion 191 (more particularly, inclined surface 161) Crunode is known as the first crosspoint P1.Also, by second surface 15f and boundary portion 191 (more particularly, normal surface 171) Crosspoint is known as the second crosspoint P2.Also, the crosspoint of inclined surface 161 and normal surface 171 is expressed as third crosspoint P3.

Further, in the same manner as being illustrated based on Fig. 9 to stabilizer 16x, in the first section, by first surface 16x with The distance between axial-flow fan 14 (length of above-mentioned first gap) is known as distance G1 (first distance).Also, by second surface The distance between 15f and axial-flow fan 14 (length of above-mentioned Second gap) are known as distance G2 (second distance).

Here, the height (that is, maximum value of the height of inclined surface 161) of the inclined surface 161 of third crosspoint P3 is indicated For h.In this case, the height H from third crosspoint P3 to the normal surface 171 of the second crosspoint P2 is expressed as H=G1- G2-h.That is, the height H of normal surface 171 is lower than the height Hx of the normal surface 191x of air conditioner 1x in air conditioner 1. It also, is h < G1-G2 due to H > 0.Like this, the height h ratio distance G1 (first distance) and distance of inclined surface 161 The difference of G2 (second distance) is small.

In addition, enclosure 15 can also be made of with stabilizer 16 seperated component as shown in (c) of Fig. 8.In the situation Under, can enclosure 15 be separated from each other or be connect with stabilizer 16.In (c) of Fig. 8, in order to be illustrated, by enclosure 15 with stabilizer 16 be isolated component each other, be emphasized by illustrating gap therebetween.

In addition, inclined surface 161 is not limited to the form since first surface 16f.That is, as shown in (c) of Fig. 8, Inclined surface 161 be can be from the part erected along the Z direction since first surface 16f, and reach the side X of second surface 15f To top portion form.Under the form, it can also slow down the existing Z-direction between stabilizer 16x and enclosure 15 Step.

(effect of air conditioner 1)

As described above, in air conditioner 1, in the first section, with the inclined surface 161 (third surface) of boundary portion 191 with First surface 16f angulation θ is that the mode at obtuse angle is provided with inclined surface 161.

In other words, in air conditioner 1, in the first section, the height H of normal surface 171 is configured to compare air conditioner The height Hx of the normal surface 191x of 1x is low.That is, in air conditioner 1, in the first section, the step of the Z-direction of boundary portion Height becomes smaller than air conditioner 1x.As a result, first surface 16f and second surface 15f pass through boundary in the first section Portion 191, and possess smoother continuity compared with above-mentioned air conditioner 1x, in other words, slow down discontinuity.

Therefore, in boundary portion 191, the change of the flowing of the air-flow easily generated in enclosure 15 and the near border of stabilizer 16 Change becomes flat, so as to reduce the disorder of air-flow.As a result, being able to suppress the air as caused by the disorder of the air-flow The performance of adjusting machine 1 declines.

As described above, according to air conditioner 1, by from previous different structure, be able to suppress by axial-flow fan 14 The performance of caused air conditioner 1 declines.Also, by the performance decline for inhibiting air conditioner 1, it also can be improved sky The reliability of controlled atmosphere section machine 1.

In addition, as described above, angle, θ is defined as the first intersection in the case where inclined surface 161 (third surface) is curved surface The section of the inclined surface 161 of point P1 and first surface 16f angulation.In the case where inclined surface 161 is curved surface, if angle Degree θ is obtuse angle, then can also obtain effect same as described above.

That is, being constituted as follows: inclined surface (i) 161 or (ii) first surface 16f in air conditioner 1 With the section of the inclined surface 161 of the first crosspoint P1 of inclined surface 161 and first surface 16 at obtuse angle.Hereinafter, by the angle Relationship is known as obtuse angle condition.

In addition, in the present embodiment, exemplifying above-mentioned obtuse angle condition in a part of boundary portion 191, in other words, The case where a part of the range of the step of one surface 16f and second surface 15f is set up.But as described below like that, this is blunt Corner condition can also be set up in the entirety of the range of above-mentioned step.As long as that is, the obtuse angle condition above-mentioned step range extremely Few a part is set up.

In addition, above-mentioned obtuse angle condition in boundary portion 191, the range of circumferential length along axial-flow fan 14 extremely Few a part is set up.

In addition, in air conditioner 1, in the first section, in first surface 16f and the one of the step of second surface 15f Part setting inclined surface 161, therefore the size of inclined surface 161 is smaller than the inclined surface 161a of aftermentioned air conditioner 1a.

That is, air conditioner 1 reduces the disorder of said flow with the size by required minimal inclined surface 161 For the purpose of and constitute.Therefore, the minimal feelings needed for being intended to be limited in from the design alteration of existing air conditioner Under condition, the structure using air conditioner 1 is a kind of scheme.

In addition, it is desirable that special without the position and ventilation for substantially changing desired air swirl by setting stabilizer 15 In the case where property, it is preferred to use the structure of air conditioner 1.In addition, in the structure of air conditioner 1, the ruler of inclined surface 161 It is very little smaller, therefore it is narrow also to can be avoided the wind path for passing through the air sent out from axial-flow fan 14.Thus, it is also possible to prevent State the reduction of the flow of air.

In addition, in the first section, there are the position of inclined surface 161, with position that the inclined surface 161 is not present, air-flow Flowing it is different.Therefore, compared with (that is, structure of above-mentioned air conditioner 1x) the case where being not provided with inclined surface 161, can make The frequency band of the noise as caused by the flowing of air-flow is widely distributed.

That is, can be obtained according to air conditioner 1 than wider noise spectrum.Therefore, it is not likely to produce ear-piercing peak value sound (the stronger noise of specific frequency band).Also, there are above-mentioned step, the frequency band of noise more widely divides Cloth, therefore the generation of peak value sound can be more effectively prevented from.

(variation)

Next, referring to Fig.1 0, the air conditioner 1a of the variation as above-mentioned air conditioner 1 is illustrated.Figure 10 (a) be enlarged drawing that Fig. 4 in air conditioner 1a obtains region D1.Also, (b) of Figure 10 is the figure in air conditioner 1a The enlarged drawing of 5 region D2.

As shown in Figure 10, the inclined surface 161 in air conditioner 1 is replaced with the inclined surface (side 161a by air conditioner 1a Portion, boundary, third surface).Inclined surface 161a is the side for constituting first surface 16f and second surface 15f in the same manner as inclined surface 161 The part on boundary.

As shown in (b) of Figure 10, in air conditioner 1a, in the first section, a table is only constituted by inclined surface 161a The boundary of face 16f and second surface 15f.That is, inclined surface 161a constitutes the entirety of boundary portion.Also, inclined surface 161a and first Surface 16f angulation θ is obtuse angle.Like this, in air conditioner 1a, in the entirety of boundary portion, meet above-mentioned obtuse angle Condition.

Here, in first section of (b) of Figure 10, the crosspoint of second surface 15f and inclined surface 161a are set as second Crosspoint P2.Also, by the height of the inclined surface 161a from the first crosspoint P1 to the second crosspoint P2 (that is, inclined surface The maximum value of the height of 161a) it is expressed as h.It does not include normal surface in boundary portion in air conditioner 1a, therefore normal surface Height H is 0.It therefore, is h=G1-G2.That is, in air conditioner 1a, height h and distance G1 (first distance) and distance G2 The difference of (second distance) is equal.

According to air conditioner 1a, the height H of normal surface is 0, therefore in the first section, can eliminate first surface 16f The step of Z-direction between the step and second surface 15f and inclined surface 161a of Z-direction between the 161a of inclined surface.

That is, compared with above-mentioned inclined surface 161, can further make first surface 16f and the second table according to inclined surface 161a Face 15f possesses smooth continuity.Therefore, according to air conditioner 1a, it can more efficiently reduce and surround in boundary portion The disorder of the air-flow generated between portion 15 and stabilizer 16.

(embodiment 2)

About embodiments of the present invention 2, if being illustrated based on Figure 11, as described below.In addition, for ease of description, it is right In with the component component with the same function that is illustrated by above embodiment, mark identical appended drawing reference, and omit it Explanation.

(a) of Figure 11 is the enlarged drawing that Fig. 4 in the air conditioner 2 of present embodiment obtains region D1.Also, Figure 11's (b) be Fig. 5 in air conditioner 2 region D2 enlarged drawing.As shown in figure 11, air conditioner 2 is in above-mentioned air conditioning On the basis of machine 1, stabilizer 16 (i) is replaced with into stabilizer 26, (ii) and is added to boundary portion 271.

The stabilizer 26 of present embodiment does not have this point of inclined surface in a part as the stabilizer 26, and upper The stabilizer 16 for stating embodiment 1 is different.In addition, as shown in first section of (b) of Figure 11, by the first surface of stabilizer 26 Referred to as first surface 26f.

In the present embodiment, boundary portion 271 is made of the component seperated with stabilizer 26 and enclosure 15.For example, side Portion, boundary 271 can be the component of the plate formed by well known plastic material.Also, by the boundary portion opposed with axial-flow fan 14 271 surface is known as inclined surface 271f (third surface).

As shown in (b) of Figure 11, in air conditioner 2, in the first section, in the same manner as above-mentioned air conditioner 1a, The boundary of first surface 26f Yu second surface 15f are only made of inclined surface 271f.Also, the shape of boundary portion 271 is set in advance Counting into inclined surface 271f and first surface 26f angulation θ is obtuse angle.

It, also can be by being provided as even if design alteration or processing without stabilizer 26 according to air conditioner 2 The boundary portion 271 of the component seperated with stabilizer 26 is deserved, to meet above-mentioned obtuse angle condition by inclined surface 271f.Therefore, Can make stabilizer 26 designs and manufactures being particularly easy to.

In addition, can also expire even if design alteration or processing (referring to aftermentioned embodiment 3) without enclosure 15 The above-mentioned obtuse angle condition of foot.Thus, it is also possible to which make enclosure 15 designs and manufactures facilitation.As described above, according to air Adjusting machine 2 can achieve the advantages that can make stabilizer 26 and enclosure 15 designs and manufactures being particularly easy to.

(variation)

Next, referring to Fig.1 2, the air conditioner 2a of the variation as above-mentioned air conditioner 2 is described.Figure 12 (a) be Fig. 4 in air conditioner 2a region D1 enlarged drawing.In addition, (b) of Figure 12 is the figure in air conditioner 2a The enlarged drawing of 5 region D2.

As shown in (b) of Figure 12, the boundary portion 271 in air conditioner 2 is replaced with secondary boundary portion by air conditioner 2a 271a.Secondary boundary portion 271a is different from above-mentioned boundary portion 271 in the component this point to form a part of boundary portion.

That is, in the first section, constituting the boundary on the boundary of first surface 26f and the second face 15f in air conditioner 2a Portion 291 is made of secondary boundary portion 271a and above-mentioned normal surface 171.That is, with above-mentioned embodiment 1 it is equally possible that structure A part and first surface 26f as boundary portion 291 is at obtuse angle.

In addition, the surface of the secondary boundary portion 271a opposed with axial-flow fan 14 is known as tilting in air conditioner 2a Face 271af (third surface).In air conditioner 2a, inclined surface 271af is known as the boundary portion 291 opposed with axial-flow fan 14 Surface.

(embodiment 3)

Then, referring to Fig.1 3, the air conditioner 3 of present embodiment is described.(a) of Figure 13 is in air conditioner 3 Fig. 4 region D1 enlarged drawing.Also, (b) of Figure 13 is the enlarged drawing of the region D2 of Fig. 5 in air conditioner 3.

As shown in figure 13, enclosure 15 is replaced with encirclement on the basis of above-mentioned air conditioner 1 by air conditioner 3 Portion 35.In addition, the second surface of enclosure 35 is known as second surface 35f as shown in (b) of Figure 11.

Moreover, in air conditioner 3, being provided in a part of the opposed faces of enclosure 35 as shown in (b) of Figure 13 Inclined surface 351 (boundary portion, third surface).The inclined surface 351 of present embodiment constitutes a part of enclosure 35.Also, First section, inclined surface 351 and first surface 16f angulation θ are obtuse angle.

In air conditioner 3, the shape of enclosure 35, which is designed to be provided in advance, meets above-mentioned obtuse angle condition Inclined surface 351.For example, the processing (such as machining) of inclined surface 351 is configured to a part of above-mentioned enclosure 15, by This can also manufacture the enclosure 35 comprising inclined surface 351.Alternatively, can also be by being integrally formed, to manufacture comprising inclined surface 351 enclosure 35.It is also same in the inclined surface 351a of aftermentioned variation about this point.

In the present embodiment, the processing for cut a part of above-mentioned second surface 15f is exemplified, is thus manufactured The case where including enclosure 35 of inclined surface 351, is illustrated.The inclined surface 351 of present embodiment is on the first section constitution side The entirety in portion, boundary, the boundary of overall structure the first surface 16f and second surface 35f of the boundary portion.

However, the outer surface of axial-flow fan 14 is depicted as (more specific with motor drive shaft 142 in the second section of above-mentioned Fig. 6 Ground says, the central point of motor drive shaft 142) centered on circular arc.Also, in the second section, in addition to the inclined surface of enclosure 35 351 Part also depict a part of the circular arc centered on motor drive shaft 142 as.That is, the discribed circular arc of second surface 35f with pass through The concentric circle of the discribed circular arc in the outer surface of flow fan 14.

Moreover, in the present embodiment, inclined surface 351 is formed as depicting as in the second section, incline with removing for enclosure 35 The circular arc of the concentric round shape in part other than inclined-plane 351 is (in other words, in three-dimensional space (XYZ orthogonal coordinate space) concentric circle The curved surface (side of cylinder) of shape).

According to air conditioner 3, in the second section, can make inclined surface 351 and enclosure 35 except inclined surface 351 with The similar shape in outer position.Therefore, the disorder of the air-flow near enclosure 35 can more efficiently be reduced.

In addition, boundary portion constitutes a part of stabilizer in above embodiment 1.Also, in above embodiment In 2, boundary portion is made of the component seperated with stabilizer and enclosure.Also it is configured in embodiment 1 and embodiment 2 Air conditioner in, in the same manner as the air conditioner of present embodiment 3, boundary portion at enclosure remove the boundary portion The curved surface of the concentric round shape in part in addition.In this case, it is also possible to obtain effect same as air conditioner 3.

(variation)

Then, referring to Fig.1 4, the air conditioner 3a of the variation as above-mentioned air conditioner 3 is described.Figure 14's (a) be Fig. 4 in air conditioner 3a region D1 enlarged drawing.Also, (b) of Figure 14 is Fig. 5 in air conditioner 3a Region D2 enlarged drawing.

As shown in (b) of Figure 14, the inclined surface 351 of air conditioner 3 is replaced with inclined surface 351a by air conditioner 3a (boundary portion, third surface).Inclined surface 351a constitutes a part of enclosure 35 in the same manner as inclined surface 351.

Inclined surface 351a is identical as above-mentioned inclined surface 351 in the whole this point for constituting boundary portion.But it tilts Face 351a in the same manner as each inclined surface of above embodiment 1 and embodiment 2, be configured to plane rather than curved surface this Point, it is different from inclined surface 351.Like this, even in the case where a part of inclined surface composition enclosure 35, the inclined surface It can be plane.As shown in (b) of Figure 14, inclined surface 351a is arranged to meet above-mentioned obtuse angle condition.

(summary)

Air conditioner (1) involved in mode 1 of the invention is a kind of air conditioner, is had axial-flow fan (14), and Have: enclosure (15) surrounds the side of the end of the axial direction (X-direction) of above-mentioned axial-flow fan；And stabilizer, along Above-mentioned axial arrangement, using with depth direction (Y-direction) of above-mentioned air conditioner it is vertical and with aforementioned stable device along upper The plane axially intersected is stated, and cuts off the section (that is, above-mentioned first section) of the air conditioner, is considering to indicate to pass through with above-mentioned The first surface (16f) on the surface of the opposed aforementioned stable device of flow fan and indicate the above-mentioned packet opposed with above-mentioned axial-flow fan In the case where the second surface (15f) for enclosing the surface in portion, between above-mentioned first surface and above-mentioned second surface, it is formed with boundary Portion (inclined surface 161), the distance between above-mentioned second surface and above-mentioned axial-flow fan are second distance (distance G2) and above-mentioned the The distance between one surface and above-mentioned axial-flow fan are that first distance (distance G1) is small, indicate to pass through with above-mentioned further contemplating In the case where the third surface (inclined surface 161) on the surface of the opposed above-mentioned boundary portion of flow fan, above-mentioned third surface or on The section for stating the above-mentioned third surface in first crosspoint (P1) on first surface and above-mentioned third surface has and above-mentioned first table The obtuse-angulate relationship in face (that is, above-mentioned obtuse angle condition), above-mentioned relation be by above-mentioned boundary portion along above-mentioned axial-flow fan Circumferential length range at least part and above-mentioned first surface and above-mentioned second surface step range extremely Few a part is set up.

Such as describe like that, in boundary portion referring to above-mentioned Fig. 9 (the first section shown in especially, (b) of Fig. 9) On, in the case where being unsatisfactory for above-mentioned obtuse angle condition, it is also easy to produce caused by the presence because of the boundary portion in enclosure and steady Determine the disorder of air-flow between device.As a result, because the air-flow disorder caused by air conditioner performance decline become aobvious It writes.

On the other hand, according to above structure, such as referring to above-mentioned Fig. 8 (the first section shown in especially, (b) of Fig. 8) As being described, on one of boundary portion, meet above-mentioned obtuse angle condition, therefore can reduce in enclosure and stabilization The disorder of air-flow between device.Therefore, it is able to suppress the performance decline of the air conditioner as caused by the disorder of the air-flow.Such as It is above like that, according to one method of the present invention involved in air conditioner, by from previous different structure, be able to suppress The decline of the performance as caused by the axial-flow fan of air conditioner.

On the basis of aforesaid way 1, air conditioner involved in mode 2 of the invention in above-mentioned section, will with it is upper The orthogonal direction of axial and above-mentioned depth direction is stated to be set as short transverse (Z-direction), above-mentioned third surface can be height with The inclined surface got higher from above-mentioned first surface towards above-mentioned second surface.

According to above structure, in above-mentioned first section, inclined surface is formed using boundary portion, it is above-mentioned blunt thus, it is possible to meet Corner condition.

On the basis of aforesaid way 2, air conditioner involved in mode 3 of the invention is above-mentioned to incline in above-mentioned section The maximum value (h) of the height on inclined-plane, (i) can be smaller than the difference of above-mentioned first distance and above-mentioned second distance, or (ii) and upper The difference for stating first distance and above-mentioned second distance is equal.

According to above structure, compared with the situation for keeping the maximum value and first distance equal with the difference of second distance, make In the case that the maximum value of the height of inclined surface is smaller than the difference of first distance and second distance, keep the size of the inclined surface small Type.It therefore, can be with the size of required minimal inclined surface, to reduce the disorder of above-mentioned air-flow.

On the other hand, different from the situation for keeping the maximum value smaller than the difference of first distance and second distance, make inclined surface Height maximum value and first distance and the difference of second distance it is equal in the case where, can in the first section, eliminate the first table The step of respective short transverse between face and inclined surface and between second surface and inclined surface.That is, in the first section, energy First surface and second surface is enough set further to possess smooth continuity.Therefore, above-mentioned gas can more efficiently be reduced The disorder of stream.

On the basis of any one of aforesaid way 1~3, for air conditioner involved in mode 4 of the invention For, above-mentioned boundary portion also may be constructed a part of aforementioned stable device.

According to above structure, in a part of stabilizer setting boundary portion, thus, it is possible to form the inclined surface in the first section. Thus, for example by the shape that is suitably designed stabilizer (alternatively, to a part of stabilizer be configured inclined surface plus Work), it can satisfy above-mentioned obtuse angle condition.

On the basis of any one of aforesaid way 1~3, for air conditioner involved in mode 5 of the invention For, above-mentioned boundary portion can also be made of the component (boundary portion 271) seperated with aforementioned stable device and above-mentioned enclosure.

According to above structure, even if the design alteration without stabilizer and enclosure is (alternatively, stabilizer and enclosure Processing), and it is provided as the boundary portion of seperated component, it is above-mentioned to meet thus also to be capable of forming the inclined surface in the first section Obtuse angle condition.Therefore, the design of stabilizer and enclosure and manufacture can be made to facilitate.

Air conditioner involved in mode 6 of the invention is a kind of air conditioner, has axial-flow fan, and have Standby: enclosure surrounds the side of the axial end of above-mentioned axial-flow fan；And stabilizer, along above-mentioned axial arrangement, Using with the depth direction of above-mentioned air conditioner it is vertical and with aforementioned stable device along the above-mentioned plane axially intersected, and The section for cutting off the air conditioner, the first table on the surface for considering to indicate the aforementioned stable device opposed with above-mentioned axial-flow fan Face and in the case where indicating the second surface on surface of the above-mentioned enclosure opposed with above-mentioned axial-flow fan, in above-mentioned first table Between face and above-mentioned second surface, it is formed with boundary portion, the distance between above-mentioned second surface and above-mentioned axial-flow fan are second Distance is small compared with the distance between above-mentioned axial-flow fan i.e. first distance with above-mentioned first surface, indicates further contemplating In the case where the third surface on the surface of the above-mentioned boundary portion opposed with above-mentioned axial-flow fan, above-mentioned third surface or above-mentioned First surface and the section on the above-mentioned third surface in first crosspoint on above-mentioned third surface have with above-mentioned first surface at blunt The relationship at angle, above-mentioned relation are by least the one of the range of the circumferential length along above-mentioned axial-flow fan in above-mentioned boundary portion Partially and at least part of the range of the step of above-mentioned first surface and above-mentioned second surface is set up, above-mentioned boundary portion structure At a part of above-mentioned enclosure.

According to above structure, in a part of enclosure setting boundary portion, thus, it is possible to form the inclined surface in the first section. Thus, for example, by the shape that is suitably designed enclosure (alternatively, to a part of enclosure be configured inclined surface plus Work), it can satisfy above-mentioned obtuse angle condition.

On the basis of any one of aforesaid way 1~6, for air conditioner involved in mode 7 of the invention For, above-mentioned boundary portion can also be at the curved surface of the partial concentric round shape in addition to the boundary portion with above-mentioned enclosure.

According to above structure, the disorder of the air-flow near enclosure can be more efficiently reduced.

(especially description item)

The present invention is not limited to each embodiment, can range shown in various change claims, about proper combination in not Embodiment obtained by the technical means that same embodiment discloses respectively, is also contained in technical scope of the invention. Furthermore the technical means disclosed respectively by combining each embodiment, can form new technical characteristic.

Description of symbols

1,1a, 2,2a, 3,3a ... air conditioner

14 ... axial-flow fans

15,35 ... enclosure

15f, 35f ... second surface

16,26 ... stabilizers

16f, 26f ... first surface

161, the inclined surface 271f, 271af ...

161a, 351, the inclined surface 351a ... (boundary portion, third surface)

191,271,291 ... boundary portion

The secondary boundary portion of 271a ...

G1 ... distance (first distance)

G2 ... distance (second distance)

The first crosspoint P1 ...

H ... height (maximum value of the height of inclined surface)

θ ... angle

Claims (7)

1. a kind of air conditioner has axial-flow fan, the air conditioner is characterized in that having:

Enclosure surrounds the side of the axial end of the axial-flow fan；And

Stabilizer, along the axial arrangement,

Using with the depth direction of the air conditioner it is vertical and with the stabilizer along it is described axially intersect put down Face, and the section of the air conditioner is cut off,

In the first surface for considering to indicate the surface of the stabilizer opposed with the axial-flow fan and indicate and the through-flow In the case where the second surface on the surface of the opposed enclosure of fan,

It is formed with boundary portion between the first surface and the second surface,

The distance between the second surface and the axial-flow fan are second distance and the first surface and the through-flow wind The i.e. first distance of the distance between fan compared to small,

In the case where the third surface on the further surface for considering to indicate the boundary portion opposed with the axial-flow fan,

The third surface or the first surface are cut with the third surface in first crosspoint on the third surface Face have with the obtuse-angulate relationship of the first surface,

The relationship be by the boundary portion along the range of the circumferential length of the axial-flow fan at least part, And the first surface and at least part of the range of the step of the second surface are set up.

2. air conditioner according to claim 1, which is characterized in that

In the section, the direction orthogonal with the described axial and described depth direction is set as short transverse,

The third surface is height with the inclined surface that gets higher from the first surface towards the second surface.

3. air conditioner according to claim 2, which is characterized in that

Maximum value in the section, the height of the inclined surface is,

(i) it is less than the difference of the first distance and the second distance, alternatively,

(ii) it is equal to the difference of the first distance and the second distance.

4. air conditioner described according to claim 1~any one of 3, which is characterized in that

The boundary portion constitutes a part of the stabilizer.

5. air conditioner described according to claim 1~any one of 3, which is characterized in that

The boundary portion is made of the component seperated with the stabilizer and the enclosure.

6. a kind of air conditioner has axial-flow fan, the air conditioner is characterized in that,

Enclosure surrounds the side of the axial end of the axial-flow fan；And

Stabilizer, along the axial arrangement,

Using with the depth direction of the air conditioner it is vertical and with the stabilizer along it is described axially intersect put down Face, and the section of the air conditioner is cut off,

In the first surface for considering to indicate the surface of the stabilizer opposed with the axial-flow fan and indicate and the through-flow In the case where the second surface on the surface of the opposed enclosure of fan,

It is formed with boundary portion between the first surface and the second surface,

The distance between the second surface and the axial-flow fan are second distance and the first surface and the through-flow wind The i.e. first distance of the distance between fan compared to small,

In the case where the third surface on the further surface for considering to indicate the boundary portion opposed with the axial-flow fan,

The third surface or the first surface are cut with the third surface in first crosspoint on the third surface Face have with the obtuse-angulate relationship of the first surface,

The relationship be by the boundary portion along the range of the circumferential length of the axial-flow fan at least part, And the first surface and at least part of the range of the step of the second surface are set up,

The boundary portion constitutes a part of the enclosure.

7. air conditioner described according to claim 1~any one of 6, which is characterized in that

The boundary portion becomes the curved surface with the partial concentric round shape in addition to the boundary portion of the enclosure.