CN217900020U

CN217900020U - Air conditioner

Info

Publication number: CN217900020U
Application number: CN202222213728.5U
Authority: CN
Inventors: 戴现伟
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-11-25
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses an air conditioner, include: the casing is provided with a fresh air inlet and an air outlet; fresh air device includes: spiral case and centrifugal fan, spiral case are provided with spiral case air intake and spiral case air outlet, and the spiral case air intake is linked together with the new trend air intake, and the spiral case air outlet is linked together with the air outlet, and the spiral case includes: the centrifugal fan comprises side plates and an outer annular plate, wherein the outer annular plate is connected to the outer edges of the two side plates, an air outlet transition part is arranged on the part, adjacent to an air outlet of the volute, of the outer annular plate, the minimum distance from the outer periphery side of the centrifugal fan to the air outlet transition part is a, the volute is provided with a volute tongue, the vertical distance from the volute tongue to the air outlet transition part is b, and a and b satisfy the relational expression: b is more than or equal to 1.8a. Like this can form the expansion form in the direction towards the spiral case air outlet, promote and access to the amount of wind of spiral case air outlet department, be provided with air-out transition portion in the cooperation of spiral case air outlet department, air-out transition portion can occupy the air-out area of spiral case air outlet department, reduces the backward flow of spiral case air outlet department, can promote wind speed and antistatic ability.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner technique and specifically relates to an air conditioner is related to.

Background

At present, because the market competition of the fresh air device of the air conditioner is very fierce, the existing product can not meet the user demand, and the air outlet form is generally back side back outlet, two side back outlets or front side air outlet and the like.

In the related art, a wind mixing channel is matched at the air outlet of the volute of the fresh air device. However, this is prone to backflow and suck-back, which can produce a loud and loud noise.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an air conditioner, this air conditioner can form the expansion form in the direction towards spiral case air outlet to can promote the amount of wind that accesss to spiral case air outlet department, be provided with air-out transition portion in spiral case air outlet department cooperation moreover, air-out transition portion can occupy the air outlet area of spiral case air outlet department, reduces the backward flow of spiral case air outlet department, can promote the wind speed moreover, thereby can promote anti static pressure ability.

According to the utility model discloses an air conditioner, include: the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with a fresh air inlet and a fresh air outlet; fresh air device, fresh air device includes: spiral case and centrifugal fan, the spiral case is provided with spiral case air intake and spiral case air outlet, the spiral case air intake with the new trend air intake is linked together, the spiral case air outlet with the air outlet is linked together, centrifugal fan set up in the spiral case, the spiral case includes: the centrifugal fan comprises side plates and an outer ring plate which are opposite in the axial direction, the outer ring plate is connected to the outer edges of the two side plates, an air outlet transition part is arranged on the part, adjacent to an air outlet of the volute, of the outer ring plate, the minimum distance from the outer peripheral side of the centrifugal fan to the air outlet transition part is a, the volute is provided with a volute tongue, the vertical distance from the volute tongue to the air outlet transition part is b, and a and b meet the relation: b is more than or equal to 1.8a.

According to the utility model discloses an air conditioner, the perpendicular distance of snail tongue to air-out transition portion is not less than 1.8 times of opening degree, can form the expansion form in the direction towards spiral case air outlet like this to can promote the amount of wind that accesss to spiral case air outlet department, be provided with the air-out transition portion in spiral case air outlet department cooperation moreover, the air-out transition portion can occupy the air outlet area of spiral case air outlet department, reduces the backward flow of spiral case air outlet department, can promote the wind speed moreover, thereby can promote anti static pressure ability.

In some examples of the invention, a and b satisfy the relation: b is more than or equal to 1.8a and less than or equal to 2.2a.

In some examples of the invention, a and b satisfy the relation: b =2a.

In some examples of the present invention, the size of the volute in the radial direction of the centrifugal fan is c, the diameter of the centrifugal fan is d, and a, c and d satisfy the following relation: a is more than or equal to 0.6 (c-d).

In some examples of the present invention, a, c, and d satisfy the relation: 0.6 A is more than or equal to (c-d) and less than or equal to 0.9 (c-d).

In some examples of the invention, a, c and d satisfy the relation: a =0.8 (c-d).

In some examples of the present invention, the air outlet transition portion includes: first changeover portion and the second changeover portion that connects in order in the air-out direction, the gib block that extends along the air-out direction on the first changeover portion.

In some examples of the present invention, the guide strip is a plurality of, a plurality of the guide strip is in the interval sets up, adjacent two in the width direction of first changeover portion be formed with the recess between the guide strip.

In some examples of the present invention, the plurality of guide bars are disposed at equal intervals in the width direction of the first transition section and have the same width.

In some examples of the invention, a surface of the second transition section facing the interior of the volute is smooth.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view illustrating a first angle of an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating a second angle of the air conditioner according to the embodiment of the present invention;

FIG. 3 is a schematic view of a first angle of the fresh air device;

FIG. 4 is a schematic view of a second angle of the fresh air device;

FIG. 5 is an exploded view of a fresh air device;

fig. 6 is a schematic structural diagram of the air outlet transition portion.

Reference numerals:

1. an air conditioner;

10. a housing; 11. a fresh air inlet; 12. an air outlet; 20. a fresh air device; 21. a volute; 210. a volute air inlet; 211. a volute air outlet; 212. a side plate; 213. an outer ring plate; 22. a centrifugal fan; 23. an air outlet transition part; 230. a first transition section; 231. a second transition section; 232. a guide strip; 233. a groove; 24. a volute tongue.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An air conditioner 1 according to an embodiment of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 4, an air conditioner 1 according to an embodiment of the present invention includes: a casing 10 and a fresh air device 20. The casing 10 forms a main structure of the air conditioner 1, so that the appearance of the air conditioner 1 is more integral and concise, and the casing 10 can play a role in installation and protection, and prevent components arranged inside the casing 10 from being damaged due to the touch with foreign objects. The casing 10 is provided with a fresh air inlet 11 and an air outlet 12, the fresh air device 20 mainly forms a channel for fresh air to enter, fresh air firstly enters the fresh air device 20 from the fresh air inlet 11, then enters the air outlet 12 from the fresh air device 20, and finally is released indoors from the air outlet 12, so that the fresh air effect of the air conditioner 1 is realized.

As shown in fig. 3 to 5, the fresh air device 20 includes: the volute 21 and the centrifugal fan 22, the volute 21 constitutes a main body part of the fresh air device 20, the volute 21 is provided with a volute air inlet 210 and a volute air outlet 211, the volute air inlet 210 is communicated with the fresh air inlet 11, and the volute air outlet 211 is communicated with the air outlet 12, that is, fresh air enters the casing 10 from the fresh air inlet 11, then enters the volute 21 from the volute air inlet 210, and then the fresh air passes to the air outlet 12 from the volute air outlet 211 and finally is released indoors from the air outlet 12. The centrifugal fan 22 is disposed in the volute casing 21, and the centrifugal fan 22 rotates after working to generate centrifugal force, so that fresh air outside the room can be sucked into the volute casing 21.

As shown in fig. 3 to 5, the scroll casing 21 includes: the two side plates 212 and the outer ring plate 213 are axially opposite to each other, and the two side plates 212 and the outer ring plate 213 may form an integral structure of the scroll casing 21, and the outer ring plate 213 is attached to the outer edges of the two side plates 212, so that the two side plates 212 and the outer ring plate 213 may form an integral structure, which facilitates the integral arrangement and installation of the scroll casing 21. The portion of the outer annular plate 213 adjacent to the volute air outlet 211 is provided with an air outlet transition portion 23, the fresh air in the volute 21 can pass through the air outlet transition portion 23 when being released from the volute air outlet 211, and the air outlet transition portion 23 can occupy the air outlet area at the volute air outlet 211, thereby reducing the backflow at the volute air outlet 211, and improving the wind speed, so as to improve the static pressure resistance.

As shown in fig. 5, the minimum distance from the outer peripheral side of the centrifugal fan 22 to the air outlet transition portion 23 is a, which is the opening degree of the scroll casing 21, the scroll casing 21 has a scroll tongue 24, the scroll tongue 24 can prevent fresh air from circulating in the scroll casing 21, the vertical distance from the scroll tongue 24 to the air outlet transition portion 23 is b, and a and b satisfy the relation: b is greater than or equal to 1.8a, understandably, the connection point of the minimum distance from the outer periphery of the centrifugal fan 22 to the air-out transition part 23 is located below the connection point of the vertical distance from the volute tongue 24 to the air-out transition part 23, the fresh air is led to the connection point of the vertical distance from the volute tongue 24 to the air-out transition part 23 from the connection point of the minimum distance from the outer periphery of the centrifugal fan 22 to the air-out transition part 23, the connection point of the vertical distance from the volute tongue 24 to the air-out transition part 23 is closer to the volute outlet 211, b is greater than or equal to 1.8a, that is, the vertical distance from the volute tongue 24 to the air-out transition part 23 is not less than 1.8 times of the opening degree, so that the expansion shape can be formed in the direction towards the volute outlet 211, and the air volume led to the volute outlet 211 can be improved.

From this, the perpendicular distance of spiral shell tongue 24 to air-out transition portion 23 is not less than 1.8 times of opening degree, can form the expansion form in the direction towards spiral shell air outlet 211 like this to can promote the amount of wind that leads to spiral shell air outlet 211 department, be provided with air-out transition portion 23 in spiral shell air outlet 211 department cooperation moreover, air-out transition portion 23 can occupy the air-out area of spiral shell air outlet 211 department, reduce the backward flow of spiral shell air outlet 211 department, and can promote the wind speed, thereby can promote anti static pressure ability.

Further, a and b satisfy the relation: b is more than or equal to 1.8a and less than or equal to 2.2a. When b is more than or equal to 1.8a, b is also required to be less than or equal to 2.2a, namely the vertical distance from the volute tongue 24 to the air outlet transition part 23 is not more than 2.2 times of the opening degree, so that the vertical distance from the volute tongue 24 to the air outlet transition part 23 is too large, when fresh air passes through the position of the air outlet transition part 23 at the position, the air outlet transition part 23 cannot reduce backflow at the volute outlet 211 better, and the air speed and the antistatic capacity are improved.

Preferably, a and b satisfy the relation: b =2a. That is to say that the vertical distance of snail tongue 24 to air-out transition portion 23 equals to open 2 times of the aperture, can promote the amount of wind that leads to spiral case air outlet 211 department like this, can avoid snail tongue 24 to air-out transition portion 23's vertical distance too big simultaneously, when the new trend passes through the position of air-out transition portion 23, air-out transition portion 23 can not reduce the backward flow of spiral case air outlet 211 department better, promotes wind speed and antistatic ability.

Further, the dimension of the scroll casing 21 in the radial direction of the centrifugal fan 22 is c, the diameter of the centrifugal fan 22 is d, and a, c, and d satisfy the relation: a is more than or equal to 0.6 (c-d). Wherein c-d is the size of the volute 21 in the radial direction of the centrifugal fan 22 minus the diameter of the centrifugal fan 22, that is, the size of the remaining part of the volute 21 in the radial direction of the centrifugal fan 22, a is greater than or equal to 0.6 (c-d), that is, the opening degree is not less than 0.6 times the size of the remaining part of the volute 21 in the radial direction of the centrifugal fan 22, so that the opening degree is large enough to increase the air volume when fresh air passes through the opening degree, and the air volume led to the volute air outlet 211 can be increased.

Of course, a, c and d satisfy the relationship: 0.6 A is more than or equal to (c-d) and less than or equal to 0.9 (c-d). When a is more than or equal to 0.6 (c-d), a is required to be less than or equal to 0.9 (c-d), that is, the opening degree is not more than 0.9 times of the size of the remaining part of the volute 21 in the radial direction of the centrifugal fan 22, so that the phenomenon that the opening degree is too large and the air outlet transition part 23 cannot better reduce the noise of the fresh air when the fresh air passes through the position of the air outlet transition part 23 at the position can be avoided.

Preferably, a, c and d satisfy the relation: a =0.8 (c-d). That is to say that the opening degree is equal to 0.8 times of the size of the left part of the volute 21 in the radial direction of the centrifugal fan 22, so that the opening degree can be large enough, the air quantity of the fresh air passing through the position can be improved, the air quantity leading to the volute air outlet 211 can be improved, the opening degree can be prevented from being too large, and when the fresh air passes through the position of the air outlet transition part 23 at the position, the air outlet transition part 23 can not better play a role in reducing noise for the fresh air.

According to an optional embodiment of the present invention, as shown in fig. 6, the air outlet transition portion 23 includes: the first transition section 230 and the second transition section 231 that connect in order in the air-out direction, the last gib block 232 that extends along the air-out direction of first transition section 230. That is to say, when the new trend in the spiral case 21 is out of the wind, can pass through first changeover portion 230 earlier, then pass through second changeover portion 231, be provided with the gib block 232 that extends along the air-out direction on first changeover portion 230, the new trend can play the effect of wind-guiding when passing through first changeover portion 230 like this.

As shown in fig. 6, there are a plurality of guide bars 232, the guide bars 232 are arranged at intervals in the width direction of the first transition section 230, and a groove 233 is formed between two adjacent guide bars 232. The plurality of guide strips 232 are arranged, so that the plurality of guide strips 232 can play a better wind guiding role, and the plurality of guide strips 232 are arranged at intervals in the width direction of the first transition section 230, so that interference among the plurality of guide strips 232 can be avoided. It can be understood that, when the fresh air passes through the first transition section 230 from the interior of the volute 21, due to the wind speed, the fresh air may impact the first transition section 230, and the groove 233 is formed between two adjacent guide strips 232, so that the groove 233 may play a role of transition buffering, and part of the fresh air may pass through the groove 233, thereby reducing the noise generated when the fresh air passes through the first transition section 230.

In addition, as shown in fig. 6, the plurality of guide bars 232 are uniformly spaced in the width direction of the first transition section 230 and have the same width. Like this, when the new trend is through a plurality of gib blocks 232, a plurality of gib blocks 232 are the same to the wind-guiding effect of new trend, and the width of recess 233 between two adjacent gib blocks 232 on the width direction of first changeover portion 230 is also the same moreover, and the effect that the new trend was buffered in the transition through recess 233 is better like this.

Optionally, the surface of the second transition segment 231 facing the inside of the volute 21 is smooth. The surface of the second transition section 231 towards the inside of the volute casing 21 is a smooth surface, so that when the fresh air passes through the second transition section 231, the interference of the second transition section 231 towards the surface of the inside of the volute casing 21 on the fresh air can be avoided, and the air outlet noise is formed.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner, comprising:

the air conditioner comprises a machine shell, a fan and a fan, wherein the machine shell is provided with a fresh air inlet and an air outlet;

new trend device, new trend device includes: spiral case and centrifugal fan, the spiral case is provided with spiral case air intake and spiral case air outlet, the spiral case air intake with the new trend air intake is linked together, the spiral case air outlet with the air outlet is linked together, centrifugal fan set up in the spiral case, the spiral case includes: the centrifugal fan comprises side plates and an outer ring plate which are opposite in the axial direction, the outer ring plate is connected to the outer edges of the two side plates, an air outlet transition part is arranged on the part, adjacent to an air outlet of the volute, of the outer ring plate, the minimum distance from the outer peripheral side of the centrifugal fan to the air outlet transition part is a, the volute is provided with a volute tongue, the vertical distance from the volute tongue to the air outlet transition part is b, and a and b meet the relation: b is more than or equal to 1.8a.

2. The air conditioner according to claim 1, wherein a and b satisfy the relation: b is more than or equal to 1.8a and less than or equal to 2.2a.

3. The air conditioner according to claim 2, wherein a and b satisfy the relation: b =2a.

4. The air conditioner according to claim 1, wherein a dimension of said scroll casing in a radial direction of said centrifugal fan is c, a diameter of said centrifugal fan is d, and a, c and d satisfy a relation: a is more than or equal to 0.6 (c-d).

5. The air conditioner according to claim 4, wherein a, c and d satisfy the relation: 0.6 A is more than or equal to (c-d) and less than or equal to 0.9 (c-d).

6. The air conditioner according to claim 5, wherein a, c and d satisfy the relation: a =0.8 (c-d).

7. The air conditioner of claim 1, wherein the outlet transition portion comprises: first changeover portion and the second changeover portion that connects in order in the air-out direction, the gib block that extends along the air-out direction on the first changeover portion.

8. The air conditioner according to claim 7, wherein the guide strip is provided in plurality, the guide strips are arranged at intervals in the width direction of the first transition section, and a groove is formed between two adjacent guide strips.

9. The air conditioner according to claim 8, wherein the plurality of guide bars are arranged at regular intervals in the width direction of the first transition section and have the same width.

10. An air conditioner according to claim 7 wherein the surface of said second transition section facing the interior of said volute is smooth.