WO2022213474A1

WO2022213474A1 - Air conditioner

Info

Publication number: WO2022213474A1
Application number: PCT/CN2021/099409
Authority: WO
Inventors: 贾莹; 占国栋; 刘发申; 苏炳超
Original assignee: 广东美的制冷设备有限公司; 美的集团股份有限公司
Priority date: 2021-04-10
Filing date: 2021-06-10
Publication date: 2022-10-13

Abstract

An air conditioner (100), comprising: a volute (10), an accommodating space (101) being defined in the volute (10), the volute (10) being provided with air inlets (102) and an air outlet (103) communicated with the accommodating space (101), the volute (10) being provided with a heat dissipation space (104) spaced from the accommodating space (101), and the peripheral wall of the heat dissipation space (104) being provided with heat dissipation holes (105); a first fan (21), the first fan (21) being arranged corresponding to the air inlets (102); and an electric control device (30), the electric control device (30) comprising an electric control assembly (31) and a heat sink (32), the heat sink (32) being disposed on the electric control assembly (31) to dissipate heat from the electric control assembly (31), at least a part of the heat sink (32) being arranged corresponding to the heat dissipation space (104), and the air in the heat dissipation space (104) entering the accommodating space (101) through the heat dissipation holes (105) and the air inlets (102).

Description

Air conditioner

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application numbers "202110388381.5" and "202120732603.6" submitted by Guangdong Midea Refrigeration Equipment Co., Ltd. and Midea Group Co., Ltd. on April 10, 2021, and claims the priority of the Chinese patent application , the entire content of the Chinese patent application is incorporated herein by reference.

technical field

The present application relates to the technical field of air conditioners, and more particularly, to an air conditioner.

Background technique

In the related art, the air conditioner usually adopts the static natural heat exchange method between the heat sink and the air to dissipate the heat of the electronic control structure. It will directly affect the service life of the product.

SUMMARY OF THE INVENTION

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide an air conditioner, which improves the heat dissipation effect of the electronic control device and increases the service life of the product.

An air conditioner according to an embodiment of the present application includes: a volute, wherein a storage space is defined in the volute, an air inlet and an air outlet communicated with the storage space are provided on the volute, and the volute is There is a heat dissipation space spaced from the storage space, and the peripheral wall of the heat dissipation space is provided with heat dissipation holes; a first fan, the first fan is arranged corresponding to the air inlet; an electric control device, the electric control device The device includes an electronic control assembly and a heat dissipation member, the heat dissipation member is arranged on the electronic control assembly to dissipate heat from the electronic control assembly, and at least a part of the heat dissipation member is disposed corresponding to the heat dissipation space, and the heat dissipation space is inside the heat dissipation space. The air enters into the storage space through the heat dissipation holes and the air inlet.

According to the air conditioner of the embodiment of the present application, at least a part of the heat sink is arranged corresponding to the heat dissipation space, and the air in the heat dissipation space can enter the storage space through the heat dissipation hole and the air inlet, so that the dynamic relationship between at least a part of the heat dissipation part and the flowing air can be realized. Heat exchange, improve the heat dissipation efficiency of the heat sink, and then improve the heat dissipation effect of the heat sink on the electronic control components, meet the heat dissipation requirements of the electronic control components, and improve the service life of the components, thereby improving the service life of the air conditioner.

In addition, the air conditioner according to the above embodiments of the present application may also have the following additional technical features:

According to some embodiments of the present application, the heat dissipation hole is located outside the volute tongue of the volute.

According to some embodiments of the present application, the first fan is a centrifugal fan, and on a rotation axis parallel to the first fan, the heat dissipation hole and the air inlet are located on the same side of the first fan.

According to some embodiments of the present application, the peripheral wall of the heat dissipation space is provided with a plurality of the heat dissipation holes arranged at intervals.

According to some embodiments of the present application, the first fan is a double centrifugal fan, the two side walls of the volute are respectively provided with the air inlets, and at least one of the air inlets is provided with a motor bracket, The motor of the first fan is mounted on the motor bracket.

According to some embodiments of the present application, the motor bracket and the volute are integrally formed parts; or, the motor bracket and the volute are separate parts connected together.

According to some embodiments of the present application, the first fan is a double centrifugal fan, the two side walls of the volute are respectively provided with the air inlets, and each of the air inlets is correspondingly provided with a first heat exchange device structure.

According to some embodiments of the present application, the distance between the first end face of the motor facing the first heat exchanger structure and the first heat exchanger structure on the same side is d, where d is greater than or equal to 4 mm.

According to some embodiments of the present application, the double centrifugal fan includes a first centrifugal fan wheel and a second centrifugal fan wheel that are coaxially arranged, and a separation point is arranged between the first centrifugal fan wheel and the second centrifugal fan wheel. next door.

According to some embodiments of the present application, the blades of the first centrifugal rotor and the blades of the second centrifugal rotor are arranged symmetrically or in a dislocation.

According to some embodiments of the present application, the double centrifugal fan includes a first motor for driving the first centrifugal fan wheel and a second motor for driving the second centrifugal fan wheel; or, the double centrifugal fan The fan includes a motor, and the motor drives the first centrifugal wind wheel and the second centrifugal wind wheel simultaneously.

According to some embodiments of the present application, the heat dissipation member includes multiple rows of heat dissipation fin groups, each group of the heat dissipation fin groups includes a plurality of heat dissipation fins spaced in a first direction, and the multiple rows of heat dissipation fin groups are located in a second direction. spaced, the first direction and the second direction are perpendicular.

According to some embodiments of the present application, the first direction is parallel to the extending direction of the rotation axis of the first fan.

According to some embodiments of the present application, at least a part of the heat dissipation member is inserted into the heat dissipation space.

According to some embodiments of the present application, in the direction parallel to the rotation axis of the first fan, the heat dissipation member inserted into the heat dissipation space is disposed opposite to at least a part of the heat dissipation holes.

According to some embodiments of the present application, the air conditioner includes a casing, the casing is provided with a first storage chamber and a second storage chamber spaced apart, the volute and the electric control device set in the first storage chamber, the first storage chamber has a first air inlet and a first air outlet; the second storage chamber is provided with a second heat exchanger and a second fan, The second holding chamber is provided with a second air inlet and a second air outlet.

Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a partial structural schematic diagram of an air conditioner according to an embodiment of the present application;

2 is a partial structural schematic diagram of an air conditioner according to an embodiment of the present application;

Fig. 3 is the exploded view of Fig. 1;

4 is an exploded view of a partial structure of an air conditioner according to an embodiment of the present application;

5 is a partial structural schematic diagram of an air conditioner according to an embodiment of the present application;

6 is a partial structural cross-sectional view of an air conditioner according to an embodiment of the present application;

7 is a partial structural cross-sectional view of an air conditioner according to an embodiment of the present application;

8 is a schematic structural diagram of a volute and a first fan of an air conditioner according to an embodiment of the present application;

9 is a schematic structural diagram of a volute and a first fan of an air conditioner according to an embodiment of the present application;

10 is a schematic structural diagram of a volute and a first fan of an air conditioner according to an embodiment of the present application;

11 is a schematic structural diagram of a heat sink of an air conditioner according to an embodiment of the present application;

12 is a front view of a heat sink of an air conditioner according to an embodiment of the present application;

13 is a bottom view of a heat sink of an air conditioner according to an embodiment of the present application;

14 is a partial structural cross-sectional view of an air conditioner according to an embodiment of the present application;

15 is a partial structural cross-sectional view of an air conditioner according to an embodiment of the present application.

Reference number:

Air conditioner 100;

volute 10; storage space 101; air inlet 102; air outlet 103; heat dissipation space 104; heat dissipation hole 105; natural wind air inlet channel 106; shell 14;

The first fan 21; the motor 211; the first centrifugal wind wheel 212; the second centrifugal wind wheel 213; the partition wall 214;

electric control device 30; electric control assembly 31; heat sink 32; heat sink group 321; heat sink 322; electric control box 33; electric control cover 34; electric control base plate 35;

motor bracket 40;

the first heat exchanger structure 51;

Cabinet 60 ; first storage chamber 61 ; first air inlet 611 ; first air outlet 612 ; second storage chamber 62 ; second air inlet 621 ; second air outlet 622 ;

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application.

In the description of this application, it should 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, The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying the indicated devices or elements. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present application.

In the description of this application, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, the first feature is the second feature " "Above" or "under" may include the first and second features in direct contact, or may include the first and second features not in direct contact but through another feature therebetween, the first feature being in contact with the second feature "Above", "over" and "above" include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is level above the second feature.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The air conditioner 100 according to the embodiment of the present application is described below with reference to the accompanying drawings.

Referring to FIGS. 1-15 , the air conditioner 100 according to the embodiment of the present application may include: a volute 10 , a first fan 21 and an electric control device 30 .

Specifically, as shown in FIGS. 5-10 , a storage space 101 may be defined in the volute 10 , and an air inlet 102 and an air outlet 103 are provided on the volute 10 , and the air inlet 102 and the air outlet 103 are respectively connected to the storage space 103 . The placement space 101 is connected. The first fan 21 is arranged corresponding to the air inlet 102 to drive the air into the storage space 101 of the volute 10 through the air inlet 102, and is discharged through the air outlet 103, thereby driving the flow of air, so that the air conditioner 100 can blow cold air Cool or blow hot air to heat. For example, in some embodiments, the first fan 21 can drive the air to flow, so that the air flows through the first heat exchanger structure 51 to exchange heat with the first heat exchanger structure 51 to obtain cold air or hot air.

It should be noted that the present application does not impose special restrictions on the specific location of the first fan 21 , as long as the first fan 21 operates and can drive air to enter the storage space 101 through the air inlet 102 . For example, in some embodiments, as shown in FIGS. 6 and 7 , the first fan 21 may be provided in the storage space 101 ; in other embodiments, the first fan 21 may be provided in the storage space 101 , or , a part of the first fan 21 is located in the containing space 101 and the other part is located outside the containing space 101 . Specifically, the first fan 21 is disposed through the air inlet 102 , or the first fan 21 is located on one side of the air inlet 102 along the airflow direction.

In addition, as shown in FIG. 7 , the volute 10 is further provided with a heat dissipation space 104 , the heat dissipation space 104 is spaced apart from the storage space 101 , and the peripheral wall of the heat dissipation space 104 is provided with heat dissipation holes 105 . The electronic control device 30 may include an electronic control assembly 31 and a heat dissipation member 32 , wherein the heat dissipation member 32 may be provided on the electronic control assembly 31 to dissipate heat from the electronic control assembly 31 . For example, as shown in FIGS. 3-7 , the volute 10 may include a first volute 13 and a second volute 14 , and the first volute 13 and the second volute 14 cooperate to define a holding space 101 and a heat dissipation space 104.

At least a part of the heat dissipation member 32 is disposed corresponding to the heat dissipation space 104 , so that the airflow flowing through the heat dissipation member 32 can enter the heat dissipation space 104 and exchange heat with the gas in the heat dissipation space 104 . In some specific embodiments, at least a part of the heat dissipation member 32 may be disposed directly opposite to the heat dissipation space 104 to reduce wind resistance and improve heat dissipation efficiency. It should be noted that the term "facing setting" here should be understood in a broad sense, that is, after the airflow flows through at least a part of the heat sink 32, it can enter the heat dissipation space 104 without changing the flow direction. For example, at least a part of the heat dissipation member 32 may extend into the heat dissipation space 104 , or the heat dissipation member 32 is located outside the heat dissipation space 104 , and the heat dissipation space 104 has an opening facing at least a part of the heat dissipation member 32 , so that at least a part of the air around the heat dissipation member 32 is opened. It can be directly communicated with the heat dissipation space 104 to form convection. Therefore, the air flow in the heat dissipation space 104 can drive the air flow around at least a part of the heat dissipation member 32 , thereby improving the heat dissipation efficiency of the heat dissipation member 32 .

During the operation of the first fan 21 , a negative pressure can be formed at the air inlet 102 , thereby driving the air in the heat dissipation space 104 to enter the storage space 101 through the heat dissipation holes 105 and the air inlet 102 . In other words, when the first fan 21 is running, the natural wind is drained to the heat sink 32 through negative pressure suction. 102 sucks the overheated hot air into the storage space 101, accelerates by the first fan 21 and converges at the air outlet 103, and finally is discharged from the air outlet 103 to realize the forced convection and high-efficiency heat exchange of the electronic control device 30. The first fan 21 can drive the air flow in the heat dissipation space 104, and the air flow in the heat dissipation space 104 enables the heat dissipation member 32 to perform dynamic heat exchange with the flowing air, so as to continuously and efficiently reduce the temperature of the heat dissipation member 32, and thus the heat dissipation member 32 can continuously The electronic control assembly 31 is efficiently radiated to meet the heat dissipation requirements of the electronic control assembly 31 . Compared with the static natural heat exchange between the heat sink and the air in the related art, the present application significantly improves the heat dissipation effect of the electronic control assembly 31 through the dynamic heat exchange, improves the service life of the components, and thus improves the service life of the air conditioner 100, especially for The air conditioner 100 with a compact interior space (eg, a portable mobile air conditioner) can improve the heat dissipation effect more significantly.

In addition, in some embodiments, as shown in FIG. 15 , a natural air intake channel 106 is defined between the electronic control device 30 and the volute 10 , and the outside natural air can enter the air conditioner 100 through the gap around the body of the air conditioner 100 . Then, as shown by the arrow in FIG. 15 , the natural air intake channel 106 directly reaches the heat dissipation space 104, and then the air flow enters the holding space 101 through the heat dissipation hole 105 and the air inlet 102, so as to be driven by the first fan 21. The tuyere 103 is discharged. In other words, both the air flow passing through the heat dissipation member 32 and the outside natural air can enter the heat dissipation space 104 , thereby reducing the temperature of the air flow in the heat dissipation space 104 and improving the heat dissipation effect.

According to the air conditioner 100 of the embodiment of the present application, at least a part of the heat sink 32 is disposed corresponding to the heat dissipation space 104, and the air in the heat dissipation space 104 can enter the storage space 101 through the heat dissipation hole 105 and the air inlet 102, so that at least a part of The dynamic heat exchange between the heat sink 32 and the flowing air improves the heat dissipation efficiency of the heat sink 32, thereby improving the heat dissipation effect of the heat sink 32 on the electronic control assembly 31, meeting the heat dissipation requirements of the electronic control assembly 31, and improving the service life of the components, thereby improving the Service life of the air conditioner 100 .

According to some embodiments of the present application, as shown in FIGS. 8-10 , the heat dissipation hole 105 may be located on the outer side of the volute tongue 11 of the volute 10 , that is, on the side of the volute tongue 11 facing away from the holding space 101 , for example In the example shown in FIG. 15 , the heat dissipation holes 105 are located on the upper side of the volute tongue 11 . A "V"-shaped space is formed at the outer side of the volute tongue 11 of the volute 10. By setting the heat dissipation hole 105 on the outer side of the volute tongue 11, the "V"-shaped space can be formed as a heat dissipation space 104, and the volute 10 can be fully utilized. The original volute tongue 11 and other structures are used to define the heat dissipation space 104 , which reduces the structural change of the volute 10 , reduces the difficulty of the processing technology, and makes the structure more compact.

In some embodiments of the present application, as shown in FIG. 3 to FIG. 7 , the first fan 21 is a centrifugal fan. When the centrifugal fan is working, air flows in from the end of the rotation axis of the first fan 21 , and is driven by the first fan 21 . The radial outflow of the fan 21 . In a direction parallel to the rotation axis of the first fan 21 (eg, the left-right direction shown in FIG. 7 ), the heat dissipation holes 105 and the air inlet 102 are located on the same side of the first fan 21 . In order to make the distance between the heat dissipation hole 105 and the air inlet 102 closer, the air in the heat dissipation space 104 can flow into the storage space 101 from the air inlet 102 more quickly after flowing out through the heat dissipation hole 105, so as to improve the effect of driving the air flow in the heat dissipation space 104. , improve the heat dissipation efficiency; and the air can flow into the storage space 101 from the axial end of the first fan 21, and the air enters the first fan 21 through the air inlet 102 without changing the wind direction, the wind resistance is smaller, and the air intake is smoother.

For example, in the example shown in FIGS. 6-10 , the first fan 21 is a double centrifugal fan, and in the direction parallel to the rotation axis of the first fan 21 , two side walls of the volute 10 opposite to each other are provided with The air inlets 102 and the heat dissipation holes 105 allow the air in the heat dissipation space 104 to flow out from the heat dissipation holes 105 on both sides, and then flow into the storage space 101 from the air inlets 102 located on both sides of the storage space 101 respectively, and the circulation volume is larger, The heat dissipation efficiency is faster.

In some embodiments, as shown in FIG. 9 , in a direction parallel to the rotation axis of the first fan 21 , a part of the side wall of the volute 10 is protruded toward a direction away from the storage space 101 to define a protruding portion 12. The heat dissipation holes 105 are provided on the protruding portion 12. For example, the left side wall of the volute 10 protrudes to the left, or the right side wall of the volute 10 protrudes to the right. As a result, the distance between the side wall of the volute 10 and the heat sink 32 can be increased to prevent the heat of the heat sink 32 from causing damage to the volute 10 due to excessive temperature rise, and to ensure that the heat sink 32 and the side of the volute 10 are not damaged. The air flow rate between the walls prevents the heat dissipation hole 105 from being blocked by the heat dissipation member 32, reduces the wind resistance, and is beneficial to improve the heat dissipation efficiency.

8-10, the peripheral wall of the heat dissipation space 104 may be provided with a plurality of spaced heat dissipation holes 105 to further increase the air flow and improve the heat dissipation efficiency. For example, in the embodiment including the protruding parts 12 , each protruding part 12 may be provided with a plurality of heat dissipation holes 105 arranged at intervals.

According to some embodiments of the present application, as shown in FIGS. 6 and 7 , the first fan 21 is a double centrifugal fan, and the two side walls of the volute 10 opposite to each other may be provided with air inlets 102 respectively, and the two air inlets 102 Corresponding to the two wind wheels of the double centrifugal fan respectively, for example, the two air inlets 102 may be located on both sides of the double centrifugal fan along the rotational axis, respectively. At least one air inlet 102 of the volute 10 can be provided with a motor bracket 40, and the motor 211 of the first fan 21 can be installed on the motor bracket 40. The installation structure of the motor 211 is simple, and the fixing is firm and reliable.

In addition, in the embodiment including the protruding part 12, as shown in FIG. 9, the protruding part 12 and the motor bracket 40 may be located on the same side of the volute 10, so that in the direction of the rotation axis of the first fan 21, the air After flowing out through the heat dissipation holes 105 on the protruding portion 12 , the flow to the air inlet 102 is less hindered by the fan bracket, and the air can flow into the storage space 101 from a larger range of the air inlet 102 .

For example, in the example shown in FIG. 9 , the motor bracket 40 includes three arms, the three arms divide the air inlet 102 into three air intake areas, and the heat dissipation holes 105 are disposed adjacent to one of the air intake areas. The arm portion is higher than the plane where the air inlet 102 is located by a certain height. By setting the protruding portion 12, the heat dissipation hole 105 can be higher than the plane where the air inlet 102 is located by a certain height, so that the air flowing out of the heat dissipation hole 105 can pass the arm more smoothly. to flow to the other two air inlet areas, so as to flow into the storage space 101 more quickly from the three air inlet areas.

In some embodiments, as shown in FIGS. 5 and 6 , the first fan 21 is a double centrifugal fan, two side walls of the volute 10 opposite to each other may be provided with air inlets 102 respectively, and each air inlet 102 may be The first heat exchanger structure 51 is correspondingly arranged, so that after the air flows through the first heat exchanger structure 51, it can directly enter the storage space 101 through the air inlet 102, so that the air can fully interact with the first heat exchanger structure 51. heat exchange.

It should be noted that, the present application does not make special restrictions on the specific structure of the first heat exchanger structure 51 . For example, the first heat exchanger structure 51 may be an independently arranged heat exchanger as shown in FIGS. 3-6 , and the independently arranged heat exchangers are arranged in a one-to-one correspondence with the air inlets 102 to reduce the size of the first heat exchanger. The volume and occupied space of the structure 51 are beneficial to the arrangement of the space in the air conditioner 100; for another example, the first heat exchanger structure 51 can be a part of an annular heat exchanger, so that different parts of the annular heat exchanger can be separately Corresponding to the plurality of air inlets 102, the number of heat exchangers can be reduced and the structure can be simplified.

According to some embodiments of the present application, the motor bracket 40 and the volute 10 may be integrally formed, so as to simplify the processing and assembling procedures, reduce production costs, and improve production efficiency, and the connection between the motor bracket 40 and the volute 10 is improved. It is firm and reliable, which is beneficial to improve the structural stability of the air conditioner 100 .

Certainly, according to other embodiments of the present application, the motor bracket 40 and the volute 10 may also be separate parts connected together, so that the motor bracket 40 and the volute 10 can be processed and formed to meet the processing of more complex structures.

In some embodiments of the present application, as shown in FIG. 6 , the distance between the first end face of the motor 211 facing the first heat exchanger structure 51 and the first heat exchanger structure 51 on the same side is d, where d Greater than or equal to 4mm. In some specific embodiments, the distance d may be any value greater than or equal to 4 mm. For example, in the example shown in FIG. 6 , a motor bracket 40 is provided at the air inlet 102 at the right end of the volute 10 , and the motor 211 is connected with the motor bracket 40 , so that the right end of the motor 211 is connected to the first air inlet located on the right side of the volute 10 . The heat exchanger structures 51 are closely spaced, the right end surface of the motor 211 is the first end surface, and the distance between the right end surface of the motor 211 and the first heat exchanger structure 51 is greater than or equal to 4 mm. In this way, the distance between the motor 211 and the first heat exchanger structure 51 can meet the safety requirements, prevent the occurrence of creepage phenomenon, and meet the electrical safety requirements.

The structure of the dual centrifugal fans according to some embodiments of the present application will be described below with reference to the accompanying drawings.

In some embodiments of the present application, as shown in FIG. 3 , FIG. 6 and FIG. 7 , the double centrifugal fan may include a first centrifugal fan wheel 212 , a second centrifugal fan wheel 213 and a partition wall 214 , wherein the first centrifugal fan The wheel 212 is coaxially arranged with the second centrifugal wind wheel 213 to make the structure compact. The partition wall 214 is arranged between the first centrifugal wind wheel 212 and the second centrifugal wind wheel 213, so that the first centrifugal wind wheel 212 and the second centrifugal wind wheel 213 can respectively drive air to enter the storage space through the two air inlets 102 After 101, it can be smoothly discharged from the air outlet 103, and the two-way airflow will not interfere.

In the embodiment of the present application, the blades of the first centrifugal wind wheel 212 and the second centrifugal wind wheel 213 may be arranged symmetrically, or the blades of the first centrifugal wind wheel 212 and the second centrifugal wind wheel 213 may be staggered to ensure the first centrifugal force. The first centrifugal wind wheel 212 and the second centrifugal wind wheel 213 run smoothly.

According to some embodiments of the present application, the dual centrifugal fan may include a first motor and a second motor, wherein the first motor is used to drive the first centrifugal fan wheel 212 to rotate, and the second motor is used to drive the second centrifugal fan wheel 213 to rotate , the corresponding volute 10 may be provided with two motor brackets 40 . Thus, the first centrifugal impeller 212 and the second centrifugal impeller 213 can be individually controlled to realize various working modes.

According to other embodiments of the present application, as shown in FIG. 6 , the double centrifugal fan may include a motor, the first centrifugal fan wheel 212 and the second centrifugal fan wheel 213 are driven to rotate by the same motor, and the corresponding volute 10 may be rotated by the same motor. A motor bracket 40 is provided. As a result, the number of parts is reduced, the structure is more compact, and the cost is reduced.

The specific structure of the heat dissipation member 32 according to some embodiments of the present application will be described below with reference to the accompanying drawings.

According to some embodiments of the present application, as shown in FIGS. 11-13 , the heat dissipation member 32 may include multiple rows of heat dissipation fin groups 321 , and each heat dissipation fin group 321 may include multiple heat dissipation fins 322 . One direction (eg, the left-right direction shown in FIG. 11 ) is spaced apart, and the rows of fin groups 321 are spaced apart in a second direction (eg, the front-to-back direction shown in FIG. 11 ), the first direction and the second direction being perpendicular. Thereby, the first ventilation channel extending in the second direction can be formed between the adjacent radiating fins 322 in the first direction, and the first ventilation channel extending in the first direction can be formed between the adjacent radiating fin groups 321 in the second direction The second ventilation channel, the first ventilation channel and the second ventilation channel are cross-distributed, which can form a smooth air flow path on the heat sink 32, so as to reduce the resistance of air flow, strengthen the wind convection, and exchange heat with the heat sink 32. The hot air can smoothly flow to the heat dissipation space 104 and the storage space 101, and the flowing air can fully contact each area of the heat dissipation member 32, which effectively improves the heat dissipation efficiency and heat dissipation effect.

In some embodiments, as shown in FIG. 5 , FIG. 7 , FIG. 11 and FIG. 15 , the first direction is parallel to the extension direction of the rotation axis of the first fan 21 , so as to provide second ventilation between adjacent fin groups 321 The channel is parallel to the rotation axis of the first fan 21, and the hot air in the second ventilation channel can flow more smoothly to the heat dissipation space 104 and flow to the storage space 101 through the heat dissipation hole 105 and the air inlet 102, and the air flows more smoothly. Less, less flow resistance, faster heat dissipation.

For example, in some specific embodiments, as shown in FIGS. 5-15 , the air inlet 102 of the storage space 101 is located at the end of the rotation axis of the first fan 21, and the first fan 21 is a centrifugal fan. When the centrifugal fan is working , the air flows in from the end of the rotation axis of the first fan 21 and flows out from the radial direction of the first fan 21 . The air enters the first fan 21 from the air inlet 102 without changing the wind direction, the wind resistance is smaller, and the air intake is smoother.

According to some embodiments of the present application, as shown in FIGS. 7 and 15 , at least a portion of the heat dissipation member 32 may be inserted into the heat dissipation space 104 . When the air in the heat dissipation space 104 flows, it can directly exchange heat with the insertion part of the heat dissipation member 32 to enhance heat exchange, and the heat dissipation surface of the heat dissipation member 32 is larger, which further improves the heat dissipation efficiency. For example, in some specific embodiments, as shown in FIGS. 3-7 , the electric control device 30 may further include an electric control base plate 35 and an electric control cover body 34 , and the electric control base plate 35 and the electric control cover body 34 cooperate to define An installation cavity for installing the electronic control assembly 31 , and the electric control base plate 35 is provided with a passage, and the passage communicates with the installation cavity and the heat dissipation space 104 . The heat sink 32 includes a heat sink, a first heat sink and a second heat sink mounted on the heat sink, wherein the height of the first heat sink is higher than the height of the second heat sink, so that the heat sink 32 is formed into a special-shaped structure. The heat dissipation plate and the second heat dissipation fin are located in the installation cavity, a part of the first heat dissipation fin is located in the installation cavity and the other part passes through the opening and is inserted into the heat dissipation space 104 .

In some specific embodiments, as shown in FIGS. 3-7 , the electric control bottom plate 35 and the electric control cover 34 may be fireproof sheet metal parts, so as to improve the fire safety performance of the electric control device 30 . The electric control device 30 may further include an electric control box 33 , and the electric control assembly 31 and the heat sink 32 may be installed in the electric control box 33 to facilitate the installation of the electric control assembly 31 and the heat sink 32 . The electrical control box body 33 can be a flame-retardant plastic part to improve safety performance. The electric control box body 33 can be arranged in the installation cavity defined by the electric control base plate 35 and the electric control cover body 34 .

In some embodiments, as shown in FIGS. 5 and 15 , in a direction parallel to the rotation axis of the first fan 21 (eg, the left-right direction shown in FIG. 5 ), the heat dissipation member 32 inserted into the heat dissipation space 104 and at least a part of the heat dissipation holes 105 may be disposed opposite to each other. Therefore, after the air in the heat dissipation space 104 flows through the insertion portion of the heat dissipation member 32, it can flow out directly from the heat dissipation holes 105 disposed opposite to it without changing the flow direction, and further flow to the storage space 101, the heat dissipation space The air flow resistance in 104 is smaller, which is beneficial to improve the heat dissipation efficiency.

In the embodiment in which the heat dissipation member 32 includes a first heat dissipation fin and a second heat dissipation fin, as shown in FIG. 15 , the part of the first heat dissipation fin extending into the heat dissipation space 104 may be disposed directly opposite to the heat dissipation hole 105 . The lower part of a heat sink extends downward into the heat dissipation space 104. The left side wall and the right side wall of the heat dissipation space 104 are respectively provided with heat dissipation holes 105, so that the heat dissipation holes 105 located on the left side wall and the right side wall and the first heat dissipation hole 105 are respectively formed. The piece is right.

According to some embodiments of the present application, as shown in FIG. 5 , FIG. 14 and FIG. 15 , the air conditioner 100 may include a cabinet 60 , and the cabinet 60 is provided with a first storage chamber 61 and a second storage chamber 62 , and the first containing chamber 61 and the second containing chamber 62 are arranged at intervals. Wherein, the volute 10 and the electronic control device 30 may be arranged in the first storage chamber 61, and the first storage chamber 61 may have a first air inlet 611 and a first air outlet 612; the second storage chamber A second heat exchanger and a second fan may be provided in 62 , and a second air inlet 621 and a second air outlet 622 may be provided in the second holding chamber 62 .

Therefore, the outside air enters the first storage chamber 61 through the first air inlet 611 under the driving of the first fan 21, and can exchange heat with the first heat exchanger structure 51 in the first storage chamber 61, Driven by the second fan, the outside air enters the second holding chamber 62 through the second air inlet 621, and can exchange heat with the second heat exchanger in the second holding chamber 62. The first heat exchanger has a structure. 51 can exchange heat with the second heat exchanger, so that the air blown out by the first air outlet 612 and the second air outlet 622 is cold air and hot air respectively.

Take the first air outlet 612 for blowing cold air and the second air outlet 622 for blowing hot air as an example. When the user feels hot, the first air outlet 612 can be directed toward the user for cooling and reduce the temperature of the environment around the user; when the user feels cold, the second air outlet 622 can be directed toward the user for heating, Raise the temperature of the user's surroundings. The air conditioner 100 is capable of both cooling and heating, and the cooling and heating structures are integrated, which is beneficial for the air conditioner 100 to be a portable and mobile air conditioner 100, which is convenient for users to use in business trips, outings, and the like.

In some embodiments, as shown in FIG. 15 , the first air outlet 612 and the second air outlet 622 may be respectively located on two side walls (eg, the front side wall and the rear side wall) opposite to each other of the cabinet 60 to prevent The air blown out from the first air outlet 612 and the second air outlet 622 interferes and affects the cooling and heating effects.

In some embodiments, as shown in FIGS. 5 and 14 , two side walls of the first storage chamber 61 opposite to each other may be provided with first air inlets 611 respectively, and the second storage chamber 62 opposite to each other may be provided with first air inlets 611 respectively. The two side walls of the 2 can be respectively provided with second air inlets 621 to increase the air intake volume of the first storage chamber 61 and the second storage chamber 62, thereby improving the cooling and heating efficiency.

For example, as shown in FIG. 5 and FIG. 14-FIG. 15, the casing 60 may include a front side wall, a rear side wall, a left side wall and a right side wall, and a middle partition 63 is provided in the casing 60 to allow the first storage The discharge chamber 61 and the second storage chamber 62 are distributed up and down in the casing 60. The lower part of the front side wall is provided with a second air outlet 622, the upper part of the rear side wall is provided with a first air outlet 612, and the left side wall is provided with a second air outlet 622. The upper part is provided with a first air inlet 611 and the lower part is provided with a second air inlet 621, the upper part of the right side wall is provided with a first air inlet 611 and the lower part is provided with a second air inlet 621, so as to increase the air intake and air outlet as much as possible efficiency.

In some embodiments, the housing 60 of the air conditioner 100 may be provided with operating structures such as handles, or may be provided with supporting moving structures such as rollers and belts, so as to facilitate the user to adjust the placement and placement of the air conditioner 100 Angle, etc., the air conditioner 100 is more portable, practical, and labor-saving to operate.

The working process of the air conditioner 100 according to a specific embodiment of the present application will be described below with reference to the accompanying drawings. It should be understood that the following description is only an exemplary illustration and should not be construed as a limitation on the application.

As shown in FIG. 6 , the first fan 21 is a double centrifugal fan. When the first fan 21 works, a negative pressure is formed, and the outside air is driven to enter the first holding chamber 61 from the first air inlets 611 on the left and right sides, and flow through respectively. Through the two first heat exchanger structures 51, then through the centrifugal air duct between the volute 10 and the first heat exchanger structure 51 and the two air inlets 102 into the holding space 101, and finally the air outlet 103 and the At the same time, as shown in FIG. 7 , the components of the electronic control assembly 31 inside the electronic control device 30 generate heat, and the generated heat is transferred to the heat sink 32. When the dual centrifugal fans are operated , a negative pressure is formed in the centrifugal air duct between the first heat exchanger structure 51 and the volute 10. Under the action of the negative pressure, the air in the heat dissipation space 104 flows into the centrifugal air duct through the heat dissipation holes 105, so that the air in the heat dissipation space 104 flows into the centrifugal air duct. The convective air takes away the heat on the heat sink 32, and the air in the centrifugal air duct further enters the storage space 101 through the air inlet 102, and is finally discharged from the air outlet 103 and the first air outlet 612 opposite to the air outlet 103, thereby realizing auxiliary The electronic control device 30 dissipates heat. The air suction method is adopted, and the airflow takes away the excess heat through the centrifugal fan, which is beneficial to the reliability and service life of the whole electrical control.

Other structures and operations of the air conditioner 100 according to the embodiment of the present application are known to those of ordinary skill in the art, and will not be described in detail here.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application 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 in these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims

An air conditioner comprising:

A volute, a containing space is defined in the volute, an air inlet and an air outlet communicating with the containing space are provided on the volute, and an air inlet and an air outlet which are spaced from the containing space are provided on the volute a heat dissipation space, the peripheral wall of the heat dissipation space is provided with heat dissipation holes;

a first fan, the first fan is arranged corresponding to the air inlet;

An electronic control device, the electronic control device includes an electronic control assembly and a heat dissipation member, the heat dissipation member is arranged on the electronic control assembly to dissipate heat from the electronic control assembly, and at least a part of the heat dissipation member and the heat dissipation space Correspondingly, the air in the heat dissipation space enters the storage space through the heat dissipation hole and the air inlet.
The air conditioner of claim 1, wherein the heat dissipation hole is located outside the volute tongue of the volute.
The air conditioner according to claim 1 or 2, wherein the first fan is a centrifugal fan, and on a rotation axis parallel to the first fan, the heat dissipation hole and the air inlet are located in the first fan the same side of the fan.
The air conditioner according to any one of claims 1-3, wherein a plurality of the heat dissipation holes arranged at intervals are provided on the peripheral wall of the heat dissipation space.
The air conditioner according to any one of claims 1-4, wherein the first fan is a double centrifugal fan, the two side walls of the volute opposite to each other are respectively provided with the air inlets, at least one A motor bracket is provided at the air inlet, and the motor of the first fan is mounted on the motor bracket.
The air conditioner according to claim 5, wherein the motor bracket and the volute are integrally formed parts; or, the motor bracket and the volute are separate parts connected together.
The air conditioner according to any one of claims 1-6, wherein the first fan is a double centrifugal fan, and the two side walls of the volute are respectively provided with the air inlets, each of which is opposite to each other. The air inlet is correspondingly provided with a first heat exchanger structure.
The air conditioner according to claim 7, wherein the distance between the first end face of the motor facing the first heat exchanger structure and the first heat exchanger structure on the same side is d, wherein d Greater than or equal to 4mm.
The air conditioner according to any one of claims 5-8, wherein the double centrifugal fan comprises a first centrifugal fan wheel and a second centrifugal fan wheel arranged coaxially, the first centrifugal fan wheel and the A partition wall is arranged between the second centrifugal wind wheels.
The air conditioner according to claim 9, wherein the blades of the first centrifugal wind wheel and the second centrifugal wind wheel are arranged symmetrically or in a staggered arrangement.
The air conditioner according to claim 9 or 10, wherein,

The double centrifugal fan includes a first motor for driving the first centrifugal wind wheel and a second motor for driving the second centrifugal wind wheel; or,

The double centrifugal fan includes a motor, and the motor drives the first centrifugal fan wheel and the second centrifugal fan wheel simultaneously.
The air conditioner according to any one of claims 1-11, wherein the heat dissipation member comprises a plurality of rows of heat dissipation fin groups, and each group of the heat dissipation fin groups includes a plurality of heat dissipation fins arranged at intervals in the first direction, so The plurality of rows of heat sink groups are arranged at intervals in a second direction, and the first direction and the second direction are perpendicular.
The air conditioner of claim 12, wherein the first direction is parallel to an extension direction of the rotation axis of the first fan.
The air conditioner according to any one of claims 1-13, wherein at least a part of the heat dissipation member is inserted into the heat dissipation space.
The air conditioner according to claim 14, wherein, in the direction parallel to the rotation axis of the first fan, the heat dissipation member inserted into the heat dissipation space faces at least a part of the heat dissipation holes set up.
The air conditioner according to any one of claims 1-15, wherein the air conditioner comprises a casing, and the casing is provided with a first storage chamber and a second storage chamber arranged at intervals, The volute and the electronic control device are arranged in the first storage chamber, and the first storage chamber has a first air inlet and a first air outlet;

The second storage chamber is provided with a second heat exchanger and a second fan, and the second storage chamber is provided with a second air inlet and a second air outlet.