WO2016206474A1

WO2016206474A1 - Enclosure component used in air cooled refrigerator, air cooled refrigerator, and enclosure component designing method

Info

Publication number: WO2016206474A1
Application number: PCT/CN2016/080698
Authority: WO
Inventors: 张建
Original assignee: 合肥华凌股份有限公司; 美的集团股份有限公司
Priority date: 2015-06-24
Filing date: 2016-04-29
Publication date: 2016-12-29

Abstract

An enclosure component used in an air cooled refrigerator comprises: an enclosure (10), a centrifugal fan (20), and a plurality of volute tongues (11). A plurality of air supply vents is formed on the enclosure (10). The centrifugal fan (20) is provided in the enclosure (10). The plurality of volute tongues (11) is provided along a circumference of the centrifugal fan (20) at intervals. A passage (12) is defined between two adjacent volute tongues (11), and the passage (12) is used to lead air blown by the centrifugal fan (20) to a corresponding air supply vent. First ends, adjacent to the center of the centrifugal fan (20), of at least some volute tongues (11) among the plurality of volute tongues (11) are located on a first volute profile (30).

Description

Case assembly, air-cooled refrigerator and casing assembly design method for air-cooled refrigerator

Technical field

The invention relates to the field of refrigeration equipment, and in particular to a casing assembly, an air-cooled refrigerator and a casing assembly design method for an air-cooled refrigerator.

Background technique

1 is a schematic view showing the structure of a conventional casing assembly for an air-cooled refrigerator. Referring to Fig. 1, a centrifugal fan 110 is disposed in a casing assembly 100 of such an air-cooled refrigerator, and the air passage 100 is provided with seven volutes 120 for dividing the air passage 100 into seven passages 130, each passage 130 is used for guiding the air blown by the centrifugal fan 110 to a corresponding air supply port (not shown), and is sent to the cooling room of the air-cooled refrigerator through the corresponding air supply port, and the air supply ports are independent of each other.

However, in such an air-cooled refrigerator, the specific position of the volute tongue 120 is usually designed according to experience, so that the design of the specific position of the volute tongue 120 has a strong subjective randomness, and the wind blown by the centrifugal fan 110 is difficult to obtain effective diversion. This results in a low performance of the centrifugal fan 110.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, it is an object of the present invention to provide a casing assembly for an air-cooled refrigerator that improves the performance of the centrifugal fan.

Another object of the present invention is to provide an air-cooled refrigerator having the above-described cabinet assembly.

Still another object of the present invention is to provide a method of designing a casing assembly for an air-cooled refrigerator.

A casing assembly for an air-cooled refrigerator according to a first aspect of the present invention, comprising: a casing having a plurality of air blowing ports formed therein; a centrifugal fan, wherein the centrifugal fan is disposed in the casing; a plurality of volutes, the plurality of volutes are circumferentially spaced along the centrifugal fan, and a channel is defined between two adjacent volutes for venting the centrifugal fan And guiding the corresponding air blowing port, wherein a first end of the at least one of the plurality of volute tongues adjacent to the center of the centrifugal fan is located on the first volute type line.

A casing assembly for an air-cooled refrigerator according to the present invention, wherein a first end adjacent to the center of the centrifugal fan is disposed on the first volute type line by providing at least a portion of the plurality of volute tongues, and is blown from the centrifugal fan The wind can flow better through the channel between the volute tongue to the corresponding air supply port, which reduces the flow loss during the wind flow and improves the efficiency of the centrifugal fan.

According to one of the examples of the present invention, a passage opening of the passage is defined between the first ends of two adjacent volutes, along the first volute type line to the center of the centrifugal fan The direction in which the distance is gradually increased, and the opening of the passage opening sequentially increases.

According to one of the examples of the present invention, when the fan of the centrifugal fan rotates in the first direction, the first volute profile is configured to gradually increase in distance from the centrifugal fan in the first direction Big.

According to one of the examples of the invention, the direction, cross-sectional area of each of the volutes from its first end to its second end Gradually increase.

According to an example of the present invention, an end surface of the first end of each of the volute tongues is formed as a circular arc surface.

According to an example of the present invention, the radius of the end surface of the first end of each of the volute tongues is r, and the radius of the fan of the centrifugal fan is R, wherein the r, R satisfy: 7% R ≤ r ≤ 11% R.

According to one of the examples of the invention, the r, R further satisfy: r = 10% R.

According to an example of the present invention, the two inner wall faces of the passage opposite to each other are each formed into a circular arc surface.

According to one of the examples of the present invention, the first end of each of the inner wall faces of the passage is tangent to the end face of the first end of the corresponding volute tongue.

According to an example of the present invention, the centers of curvature of the two inner wall faces of the passage opposite to each other are located on the same side of the corresponding inner wall faces.

According to one of the examples of the present invention, the casing has a first side and a second side opposite to each other, and the plurality of the passages includes at least one first passage and at least one second passage, the first passage being away from the a direction in which the center of the centrifugal fan extends toward the first side, the second passage extending toward the second side in a direction away from a center of the centrifugal fan, wherein the at least a portion of the plurality of volutes The first passage is defined between the tongues.

According to an example of the present invention, the arrangement of the plurality of first passages is the same as the arrangement of the plurality of air supply openings.

According to an example of the present invention, the passage further includes: at least one third passage, the third passage being disposed between the first passage and the second passage.

According to one of the examples of the present invention, the first end of at least a portion of the other of the plurality of volutes is located on the second volute type line.

According to one of the examples of the present invention, the first end of at least one of the plurality of volutes is simultaneously located on the first volute type line and the second volute type line.

An air-cooled refrigerator according to a second aspect of the present invention, comprising the casing assembly for an air-cooled refrigerator according to the above first aspect of the present invention.

A casing assembly design method for an air-cooled refrigerator according to a third aspect of the invention, the casing assembly comprising a casing having a plurality of air blowing ports, a centrifugal fan disposed in the casing, and the centrifugal a plurality of volutes disposed circumferentially apart from each other, wherein the casing assembly design method comprises the following steps: S1, determining a first volute type line according to a basic parameter of the centrifugal fan, using a fan center of the centrifugal fan as an impeller center; S2 Providing a first end of the at least one of the plurality of volutes adjacent to the center of the centrifugal fan on the first volute type line.

According to an example of the present invention, after the step S2, the method further includes: S3, according to a preset air volume ratio of the plurality of air blowing ports, between the first ends of two adjacent volute tongues A volute type line length is assigned.

According to an example of the present invention, after the step S3, the method further includes: S4, calculating and correcting the length of the first volute type line by using simulation software.

According to an example of the present invention, after the step S4, the method further includes: S5, fine-tuning the first end of the volute tongue on the first volute type line according to an actual air volume distribution condition.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows. Obviously, or as understood by the practice of the invention.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic structural view of a conventional casing assembly for an air-cooled refrigerator;

2 is a schematic structural view of a casing assembly for an air-cooled refrigerator according to an embodiment of the present invention;

3 is a schematic structural view of a casing assembly for an air-cooled refrigerator according to another embodiment of the present invention;

4 is a flow chart showing a method of designing a casing assembly for an air-cooled refrigerator according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Out, Clockwise, Counterclockwise, Axial The orientation or positional relationship of the "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or The elements must have a particular orientation, are constructed and operated in a particular orientation and are therefore not to be construed as limiting.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise stated.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connections, or integral connections; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal to the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

A cabinet assembly for an air-cooled refrigerator (not shown) according to an embodiment of the first aspect of the present invention will be described below with reference to FIGS. 2 and 3.

As shown in FIGS. 2 and 3, a cabinet assembly for an air-cooled refrigerator according to an embodiment of the first aspect of the present invention includes a cabinet 10, a centrifugal fan 20, and a plurality of volutes 11.

A plurality of air blowing ports (not shown) are formed on the casing 10, and the plurality of air blowing ports respectively correspond to the plurality of cooling rooms of the air-cooling refrigerator. For example, the plurality of air blowing ports may be connected to the plurality of cooling rooms. Correspondingly, of course, a plurality of air supply ports may correspond to one cooling room. Wherein, the plurality of air supply openings are independent of each other to respectively supply air to the plurality of cooling compartments. Leave The heart fan 20 is disposed within the casing 10.

A plurality of volutes 11 are disposed along the circumferential direction of the centrifugal fan 20, and a channel 12 is defined between two adjacent volutes 11. For example, when there are a plurality of channels 12, the plurality of channels 12 are provided in the casing 10. The plurality of volutes 11 are formed at intervals, and the passage 12 is configured to guide the wind blown by the centrifugal fan 20 to the corresponding air supply port, that is, the wind blown by the centrifugal fan 20 flows through the passage 12 to the corresponding air supply port.

Wherein the first end of at least a portion of the plurality of volutes 11 adjacent the center of the centrifugal fan 20 is located on the first volute profile 30. In other words, only the first end of a portion of the plurality of volutes 11 (at least one of the plurality of volutes 11) may be located on the first volute profile 30, at this time on the first volute profile 30. The number of volutes 11 is less than the total number of volutes 11; alternatively, the first ends of all of the volutes 11 are located on the first volute profile 30. The first volute profile 30 is configured to gradually increase in distance from the center of the centrifugal fan 20 along the direction in which the first volute profile 30 extends. Thereby, the wind energy blown from the centrifugal fan 20 can be better guided to the corresponding air supply port through the passage 12, thereby reducing the flow loss of the wind flow in the casing 10, and improving the efficiency of the centrifugal fan 20 in the casing 10. .

For example, in the example of FIG. 2, the volute 11 includes a first volley 112, a second volute 113, and a third volute 114 that are sequentially adjacent, wherein the first end of the first volute 112, the second volute The first end of the 113 and the first end of the third volley 114 are gradually increased from the center of the fan of the centrifugal fan 20 such that the first end of the first volute 112, the first end of the second volute 113, and The first end of the third volute 114 is located on the same first volute profile 30. Of course, it will be understood that the volute 1111 used to form the channel 12 may also include other volutes 11 other than the first volute 112, the second volute 113, and the third volute 114, and the other volutes 11 The ends are also located on the first volute profile 30 to maximize the effectiveness of the centrifugal fan 20.

Here, it should be noted that the first volute type line 30 may be determined according to the basic parameters of the centrifugal fan 20, with the fan center of the centrifugal fan 20 as the center of the impeller. Specifically, the basic parameters of the centrifugal fan 20 include the size of the centrifugal fan 20, the fan speed, the impeller exit angle, and the like.

A casing assembly for an air-cooled refrigerator according to an embodiment of the present invention, wherein a first end adjacent to a center of the centrifugal fan 20 of at least a portion of the plurality of volutes 11 is disposed at the first volute profile 30 Above, the wind blown from the centrifugal fan 20 can flow better through the passage 12 between the volutes 11 to the corresponding air supply port, reducing the flow loss during the wind flow, and improving the efficiency of the centrifugal fan 20.

According to an embodiment of the present invention, referring to FIG. 2 and FIG. 3, a passage opening of the passage 12 is defined between the first ends of the adjacent two volleys 11, and the wind blown by the centrifugal fan 20 can enter the corresponding passage through the passage opening. In the passage 12, the direction in which the distance between the first volute type line 30 and the center of the centrifugal fan 20 gradually increases (for example, the clockwise direction in Fig. 2), and the opening of the passage opening sequentially increases.

For example, the channel 12 includes a plurality of first channels 12, and the plurality of air outlets corresponding to the plurality of first channels 12 are spaced apart from top to bottom and are connected to the same cooling compartment, as shown in FIG. 2, and correspondingly, The first passages 12 are spaced apart from top to bottom, and each of the first passages 12 has a first passage opening 131 adjacent to the center of the centrifugal fan 20. Since the cold air will sink, the air volume required at the upper air supply opening is larger than the lower one. The amount of air required for the air supply port is such that the plurality of first passage openings 131 of the plurality of first passages 12 are gradually reduced from top to bottom to ensure the air supply volume of the upper air supply opening.

It can be understood that the length of the first volute profile 30 between the opening of the passage opening and the first end of the corresponding two volutes 11 Correspondingly, the length of the first volute type line 30 is obtained by the proportion of the preset air volume corresponding to the air supply opening, so that the subjective randomness of the structural design of the casing assembly can be reduced, and the air volume of the different air supply openings can be reasonably distributed. And can maximize the simulation value of the casing assembly design close to the theoretical value.

For example, when the casing 10 of the air-cooled refrigerator is disposed in the vertical direction, each of the first passages 13 has a first passage opening 131 facing the centrifugal fan 20, and each of the first passage openings 131 is formed to form a corresponding first passage. 13 between the two ends of the two volutes 11. The air volume required for different air outlets is usually inconsistent, and the preset air volume ratio of different air outlets can be determined according to the size of the cooling compartment connected to the corresponding air outlet and the required temperature. Thus, by controlling the opening size of the first passage opening 131 of the first passage 13, the amount of air flow leading to the corresponding air supply opening can be controlled; the opening size of the first passage opening 131 corresponds to the two volutes 11 end of the first passage opening 131. The length of the first volute profile line 30 between the sections. Further, after the length of the first volute type line 30 between the ends of the two volutes 11 of each of the first passage ports 131 is allocated according to the preset air volume ratio of the corresponding plurality of air blowing ports, the simulation software may also be utilized. Calculating and correcting the length of the first volute profile 30 between the ends of the two volutes 11 of each of the first passage openings 131 (e.g., CFD) to further satisfy the delivery of the different first passages 13 of the casing assembly The air volume distribution of the tuyere is required.

According to an embodiment of the present invention, when the fan of the centrifugal fan 20 is rotated in the first direction, the first volute profile 30 is configured to gradually increase in distance from the centrifugal fan 20 in the first direction. For example, when the first direction is clockwise, the distance between the first volute profile 30 and the centrifugal fan 20 increases in a clockwise direction. As shown in FIG. 2, the fan of the centrifugal fan 20 rotates clockwise. The first opening 31 of the first volute profile 30 faces the right side of the casing 10; when the first direction is the counterclockwise direction, the first volute profile 30 is in the counterclockwise direction with the centrifugal fan 20 The distance gradually increases, and if the fan of the centrifugal fan 20 rotates counterclockwise, the first opening 31 of the first volute type wire 30 faces the left side of the casing 10.

As shown in Figures 2 and 3, the direction and cross-sectional area of each of the volutes 11 from its first end to its second end is gradually increased to have a better wind guiding effect.

According to an embodiment of the present invention, as shown in FIGS. 2 and 3, the end surface of the first end of each of the volutes 11 may be formed into a circular arc surface so that the wind energy blown by the centrifugal fan 20 is further increased by the volute tongue 11. Well diverted into channel 12.

Optionally, the radius of the end surface of the first end of each volley 11 is r, and the radius of the fan of the centrifugal fan 20 is R, where r, R satisfy: 7% R ≤ r ≤ 11% R. Further, r and R further satisfy: r=10%R. That is, the radius r of the end of any of the volutes 11 facing the end face of the centrifugal fan 20 is 7% to 11% of the fan radius R of the centrifugal fan 20, and the radius of the end of any of the volutes 11 toward the end face of the centrifugal fan 20 r is preferably 10% of the fan radius R of the centrifugal fan 20, whereby by limiting the size of the first end of the volute tongue 11, the smoothness of the wind blown by the centrifugal fan 20 can be effectively ensured, and the end of the volute 11 can be prevented. The end face of the centrifugal fan 20 is excessively large to hinder the smoothness of the wind blown by the centrifugal fan 20.

According to an embodiment of the present invention, as shown in FIGS. 2 and 3, the two inner wall faces of the passage 12 opposed to each other are formed as circular arc faces to improve the smoothness of the wind flow in the passage 12. Specifically, the first end of each inner wall surface of the passage 12 is tangent to the end surface of the first end of the corresponding volute tongue 11, and the second end of each inner wall surface of the passage 12 is connected to the corresponding air supply opening.

Further, the center of curvature of the two inner wall faces of the channel 12 opposite to each other is located on the same side of the corresponding inner wall surface, that is, the two inner wall faces of the same channel 12 facing each other are recessed in the same direction to further increase the airflow in the channel 12. The fluency.

According to a particular embodiment of the invention, the casing 10 has a first side and a second side opposite each other, the plurality of channels 12 comprising at least one first channel 12 and at least one second channel 12, the first channel 12 being remote from the centrifuge The direction of the center of the fan 20 extends toward the first side, and the second passage 12 extends toward the second side in a direction away from the center of the centrifugal fan 20, wherein at least a portion of the plurality of volutes 11 define a first passage 12 therebetween . Optionally, the arrangement of the plurality of first passages 12 is the same as the arrangement of the plurality of air supply openings. Further, the channel 12 further includes at least one third channel 12 disposed between the first channel 12 and the second channel 12.

For example, as shown in FIG. 2, the plurality of channels 12 includes a plurality of first channels 13 and a plurality of second channels 14. The casing 10 of the air-cooled refrigerator has opposite first sides and second sides. The plurality of first passages 13 extend toward the first side of the casing 10, and the plurality of second passages 12 extend to the second side of the casing 10. Extended settings. Two of the plurality of first passages 13 are formed between the first volute 112 and the second volute 113, and between the second volute 113 and the third volute 114. The plurality of second passages 14 are located at the first opening 31 of the first volute profile 30, and the specific positions of the ends of the plurality of volutes 11 for forming the plurality of second passages 14 can be empirically set.

In a case where a plurality of air blowing ports corresponding to the plurality of first passages 13 are spaced apart in the vertical direction, generally, if the fan of the centrifugal fan 20 rotates clockwise, the first opening 31 of the first volute type wire 30 Toward the right side of the casing 10 (as shown in FIG. 2); if the fan of the centrifugal fan 20 rotates counterclockwise, the first opening 31 of the first volute profile 30 faces the left side of the casing 10. Here, the first side of the casing 10 of the air-cooled refrigerator refers to the left side of the casing 10, and the second side of the casing 10 of the air-cooled refrigerator refers to the right side of the casing 10, and the extension of each of the first passages 13 The direction is generally toward the left side of the cabinet 10, and the direction in which each of the second passages 14 extends is substantially toward the right side of the cabinet 10. The plurality of channels 1212 can also include a third channel 15 that extends upwardly.

Of course, in other embodiments of the present invention, when the plurality of air outlets corresponding to the plurality of first passages 13 are spaced apart in the horizontal direction (for example, each air supply port corresponds to one cooling compartment, the plurality of cooling compartments are horizontally When the direction is spaced apart, the first side of the casing 10 of the air-cooled refrigerator may also refer to the upper side of the casing 10, and the second side of the casing 10 of the air-cooled refrigerator may also refer to the lower side of the casing 10.

In accordance with a further embodiment of the present invention, as shown in FIG. 3, the first end of at least a portion of the other of the plurality of volutes 11 is located on the second volute profile 40. The second volute profile 40 is configured to gradually increase in distance from the center of the centrifugal fan 20 along the direction in which the second volute profile 40 extends.

Specifically, for example, referring to FIG. 3, the plurality of volutes 11 include a fourth volute 115, a fifth volute 116, and a sixth volute 117, which are sequentially adjacent, wherein the fourth volute 115 and the fifth volute Two aforementioned second passages 14, between the first end of the fourth volute 115, the first end and the sixth end of the fifth volute 116, are formed between 116, and between the fifth volute 116 and the sixth volute 117 The distance between the first end of the volute 117 and the center of the fan of the centrifugal fan 20 is gradually increased so that the first end of the fourth volute 115, the first end of the fifth volute 116, and the sixth volute 117 The first end is located on the same second volute profile 40, so that the flow loss of the wind flow in the casing 10 can be further reduced, and the performance of the centrifugal fan 20 in the casing 10 is further improved. The opening direction of the second volute type wire 40 faces the first side of the cabinet 10 (for example, the left side in FIG. 3).

Here, it should be noted that the second volute type line 40 is also determined based on the basic parameters of the centrifugal fan 20, with the fan center of the centrifugal fan 20 as the center of the impeller. The volute 11 for forming the second passage 14 may further include a fourth The volute 115, the fifth volute 116, and the other volute 11 other than the sixth volute 117, and the ends of the other volutes 11 are also located on the second volute profile 40 to maximize centrifugation in the casing 10. The performance of the fan 20.

Further, as shown in FIG. 3, the first end of at least one of the plurality of volutes 11 is simultaneously located on the first volute profile 30 and the second volute profile 40.

An air-cooled refrigerator according to an embodiment of the second aspect of the present invention includes the casing assembly for an air-cooled refrigerator according to the above-described first aspect of the present invention. The specific structure of the casing assembly is referred to the foregoing embodiment. Since the air-cooled refrigerator according to the embodiment of the present invention adopts all the technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are also obtained. I will not repeat them here.

As shown in FIG. 4, a casing assembly design method for an air-cooled refrigerator according to an embodiment of the third aspect of the present invention. The casing assembly includes a casing 10 having a plurality of air blowing ports, a centrifugal fan 20 disposed in the casing 10, and a plurality of volutes 11 disposed along the circumferential direction of the centrifugal fan 20. A casing assembly design method according to an embodiment of the present invention can obtain a casing assembly according to the above embodiment of the present invention.

The design method of the casing component includes the following steps:

S1, according to the basic parameters of the centrifugal fan 20, the center of the fan of the centrifugal fan 20 as the center of the impeller to determine the first volute type line 30;

S2. The first end of at least a portion of the plurality of volutes 11 adjacent to the center of the centrifugal fan 20 is disposed on the first volute profile 30.

In the case of the description, the air outlets corresponding to the passages 12 defined between the adjacent volutes 11 are independent. The basic parameters of the centrifugal fan 20 include the size of the centrifugal fan 20, the fan speed, the impeller exit angle, and the like. Each channel 12 has a passage opening adjacent to the centrifugal fan 20.

A casing assembly design method for an air-cooled refrigerator according to an embodiment of the present invention, wherein at least a portion of the plurality of volutes 11 adjacent to the center of the centrifugal fan 20 is disposed at the same first volute type On the line 30, on the one hand, the passage opening of the passage 12 formed between the adjacent volutes 11 can be located on the first volute profile 30, so that the wind energy blown from the centrifugal fan 20 passes through the passage 12 better. The flow is diverted to the corresponding air supply port, thereby reducing the flow loss of the wind flow in the casing 10, improving the efficiency of the centrifugal fan 20 in the casing 10, and on the other hand, reducing the subjective randomness of the structural design of the casing assembly.

Further, after the step S2, the casing component design method further includes:

S3. The length of the first volute profile line 30 between the first ends of the adjacent two volutes 11 is allocated according to a preset air volume ratio of the plurality of air supply openings.

It should be noted that the air volume required for different air outlets is generally inconsistent, and the preset air volume ratio of different air outlets may be determined according to the size of the cooling compartment connected to the corresponding air outlet and the required temperature. The amount of air that is diverted to the corresponding air outlet can be controlled by the size of the opening of the passage opening of the control passage 12; the opening size of the passage opening corresponds to the length of the first volute profile 30 between the ends of the two volutes 11 of the passage opening. The air duct design method provided by the embodiment can reduce the airflow of the air ducts and the air volume of the air ducts can be distributed reasonably, and the wind can be made to a large extent while reducing the subjective randomness of the air duct structure design. The analog value of the track design is close to the theoretical value.

Further, after the step S3, the casing component design method further includes:

S4. Calculate and correct the length of the first volute profile line 30 between the ends of the two volutes 11 of each channel port on the first volute profile line 30 by using simulation software to further satisfy the casing. The air volume distribution of the air supply port corresponding to the different passages 12 of 10 is required. Wherein, the above simulation software may be, but not limited to, CFD.

After step S4, the casing assembly design method further includes:

S5, fine adjustment of the first end of the volute tongue 11 on the first volute type line 30 according to the actual air volume distribution.

In the later test verification process, the specific position of the first end of each volute 11 on the first volute profile 30 can be fine-tuned according to the actual air volume distribution of the casing 10 to satisfy the volute 11 The air volume distribution of the air outlet corresponding to the different passages 12 is required.

Other configurations and the like of the air-cooled refrigerator according to the embodiment of the present invention and operations are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

A casing assembly for an air-cooled refrigerator, comprising:

a casing, wherein the casing is formed with a plurality of air blowing openings;

a centrifugal fan, the centrifugal fan being disposed in the casing;

a plurality of volutes, the plurality of volutes are circumferentially spaced along the centrifugal fan, and a channel is defined between two adjacent volutes for venting the centrifugal fan And guiding the corresponding air blowing port, wherein a first end of the at least one of the plurality of volute tongues adjacent to the center of the centrifugal fan is located on the first volute type line.
A casing assembly for an air-cooled refrigerator according to claim 1, wherein a passage opening of said passage is defined between said first ends of two adjacent said volutes, along said The distance between the volute type line and the center of the centrifugal fan is gradually increased, and the opening of the passage opening is sequentially increased.
The casing assembly for an air-cooled refrigerator according to claim 1 or 2, wherein when the fan of the centrifugal fan rotates in the first direction, the first volute type wire is configured to be along The distance between the first direction and the centrifugal fan is gradually increased.
A casing assembly for an air-cooled refrigerator according to any one of claims 1 to 3, characterized in that the direction and cross-sectional area of each of the volutes from the first end to the second end thereof are gradually increased Big.
A casing assembly for an air-cooled refrigerator according to any one of claims 1 to 4, wherein an end surface of the first end of each of the volutes is formed into a circular arc surface.
A casing assembly for an air-cooled refrigerator according to claim 5, wherein a radius of an end surface of said first end of each of said volutes is r, and a radius of said fan of said centrifugal fan is R Wherein r, R satisfy: 7% R ≤ r ≤ 11% R.
A casing assembly for an air-cooled refrigerator according to claim 6, wherein said r, R further satisfy: r = 10% R.
The casing assembly for an air-cooled refrigerator according to any one of claims 1 to 7, characterized in that the two inner wall faces of the passage opposite to each other are each formed into a circular arc surface.
A cabinet assembly for an air-cooled refrigerator according to claim 8, wherein a first end of each of said inner wall faces of said passage and a corresponding end of said first end of said volute The face is tangent.
A casing assembly for an air-cooled refrigerator according to claim 8 or 9, wherein a center of curvature of the two inner wall faces of the passage opposite to each other is located on the same side of the corresponding inner wall surface.
A cabinet assembly for an air-cooled refrigerator according to any one of claims 1 to 10, wherein the cabinet has a first side and a second side opposite to each other, and the plurality of passages include at least a first passage extending toward the first side in a direction away from a center of the centrifugal fan, and at least one second passage facing the direction away from a center of the centrifugal fan The second side extends wherein the first passage is defined between the at least a portion of the plurality of volutes.
The casing assembly for an air-cooled refrigerator according to claim 11, wherein the plurality of first passages are arranged in the same manner as the plurality of the air outlets.
The casing assembly for an air-cooled refrigerator according to claim 11 or 12, wherein the passage further comprises:

At least one third channel, the third channel being disposed between the first channel and the second channel.
A casing assembly for an air-cooled refrigerator according to any one of claims 1 to 13, wherein a first end of at least a portion of the other of the plurality of volutes is located at a second The volute type line.
A cabinet assembly for an air-cooled refrigerator according to claim 14, wherein said first end of at least one of said plurality of volutes is located at said first volute profile and said The second volute type line.
An air-cooled refrigerator characterized by comprising the casing assembly for an air-cooled refrigerator according to any one of claims 1-15.
A casing assembly design method for an air-cooled refrigerator, characterized in that the casing assembly comprises a casing having a plurality of air blowing openings, a centrifugal fan disposed in the casing, and the centrifugal fan The plurality of volutes are disposed at circumferential intervals, and the casing assembly design method comprises the following steps:

S1, according to the basic parameters of the centrifugal fan, determining the first volute type line with the fan center of the centrifugal fan as the center of the impeller;

S2. The first end of the at least one of the plurality of volutes adjacent to the center of the centrifugal fan is disposed on the first volute type line.
The method for designing a casing assembly for an air-cooled refrigerator according to claim 17, wherein the step S2 further comprises:

S3. Allocate a length of the first volute type line between the first ends of two adjacent volute tongues according to a preset air volume ratio of the plurality of air blowing ports.
The method of designing a casing assembly for an air-cooled refrigerator according to claim 18, wherein the step S3 further comprises:

S4. Calculate and correct the length of the first volute profile line by using simulation software.
The method of designing a casing assembly for an air-cooled refrigerator according to claim 19, wherein the step S4 further comprises:

S5, fine-tuning the first end of the volute tongue on the first volute type line according to an actual air volume distribution.