CN112161327A

CN112161327A - Air conditioner and motor heat radiation structure thereof

Info

Publication number: CN112161327A
Application number: CN202011019168.9A
Authority: CN
Inventors: 廖岸辉; 文超; 郑和清
Original assignee: TCL Air Conditioner Zhongshan Co Ltd
Current assignee: TCL Air Conditioner Zhongshan Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-01-01

Abstract

The invention discloses an air conditioner and a motor heat radiation structure thereof, wherein the motor heat radiation structure of the air conditioner comprises: the fan is arranged on one side of the motor, and the heat dissipation piece is arranged on one side, deviating from the fan, of the motor. When the motor is started, the motor drives the fan to rotate, meanwhile, the heat dissipation piece dissipates heat of the motor, the motor can generate heat in the process of driving the fan to rotate, and the heat dissipation piece dissipates the generated heat, so that the problem that the motor cannot dissipate the heat due to long-term heat generation in the working process can be prevented, the heat generated by the motor can be taken away by the heat dissipation piece, the heat dissipation effect is good, and the service life of the motor is prolonged. And, the heat dissipation piece deviates from the fan setting, and the heat dissipation piece neither occupies the space of fan when the motor dispels the heat, does not influence blowing of fan again, has carried out the heat dissipation when having guaranteed that the fan blows.

Description

Air conditioner and motor heat radiation structure thereof

Technical Field

The invention relates to the technical field of refrigeration, in particular to an air conditioner and a motor heat dissipation structure thereof.

Background

In current air conditioner internal unit, mostly adopt the fan in the wind channel to supply air, driving motor sets up the one end at centrifugal fan or cross-flow fan coaxially, and in long-time use, driving motor can produce a large amount of heats, and the fan setting is in the inside of internal unit, is difficult to fast conveniently distribute away the heat, if long-term in time distribute away the heat that the motor produced, can influence the life of motor.

In order to dissipate heat of a driving motor of an air conditioner internal unit, some technologies for dissipating heat of a fan are provided in the prior art, for example, a plurality of heat dissipation holes which can be used for dissipating heat in a cavity into the outside are formed in a motor cover plate, so that heat at the tail part of a motor can be dissipated, and the whole motor can dissipate heat uniformly. However, tests and practical use find that when the load of the motor is too large, the temperature rise of the motor still exceeds the standard control range, a good heat dissipation effect is difficult to obtain, peculiar smell is easy to generate, and the service life is easy to reduce.

Disclosure of Invention

The invention mainly aims to provide an air conditioner and a motor heat dissipation structure thereof, and aims to solve the problem that a motor in the air conditioner cannot dissipate heat well.

In order to achieve the above object, the present invention provides a motor heat dissipation structure of an air conditioner, including:

a motor;

the fan is arranged on one side of the motor;

the heat dissipation piece is arranged on one side, deviating from the fan, of the motor.

Preferably, the motor includes:

the fan comprises a motor body, a first output shaft and a second output shaft, wherein the first output shaft and the second output shaft are respectively arranged on two sides of the motor body, the heat dissipation part is connected with the first output shaft, and the fan is connected with the second output shaft.

Preferably, the heat dissipation member is a fan, the fan is connected with the first output shaft, and the air outlet side of the fan faces the motor body.

Preferably, the fan includes:

the motor comprises a rotating shaft and a plurality of fan blades arranged on the periphery of the rotating shaft in a surrounding mode, wherein one side, facing the motor body, of the rotating shaft is provided with a mounting groove, and one end, far away from the motor body, of the first output shaft is mounted in the mounting groove.

Preferably, a clamping ring is arranged in the mounting groove, and a clamping groove clamped with the clamping ring is formed in one end, far away from the motor body, of the first output shaft.

Preferably, a rotation center line of the fan coincides with a rotation center line of the blower.

Preferably, the motor heat dissipation structure of the air conditioner further includes:

the motor body is provided with a protective cover, the protective cover is arranged outside the motor body and provided with a heat dissipation opening, and the fan is arranged outside the protective cover and right opposite to the heat dissipation opening.

Preferably, the fan is a centrifugal fan or a cross-flow fan.

Furthermore, the present invention also provides an air conditioner including:

the volute is internally provided with an air duct and is provided with an air inlet and an air outlet which are communicated with the air duct;

the air duct assembly is arranged in the air duct;

the air guide assembly is arranged in the air duct and comprises a connecting rod and a plurality of air guide blades arranged on the connecting rod at intervals;

the motor heat radiation structure of the air conditioner is provided.

Preferably, a plurality of the wind guide blades are arranged at regular intervals along the extending direction of the connecting rod.

According to the technical scheme, the fan is arranged on one side of the motor, the radiating piece is arranged on the other side of the motor, when the motor is started, the motor drives the fan to rotate, the radiating piece radiates the motor, the motor can generate heat in the process of driving the fan to rotate, and the radiating piece radiates the generated heat, so that the problem that the motor cannot radiate the heat due to long-term heat generation in the working process can be prevented, the radiating piece can take away the heat generated by the motor, the radiating effect is good, and the service life of the motor is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a partial schematic view of an air conditioner according to the present invention;

FIG. 2 is a partially exploded view of an air conditioner according to the present invention

FIG. 3 is a partial schematic view of another aspect of the air conditioner of the present invention;

FIG. 4 is a schematic view of a connection structure of a motor and a fan in a motor heat dissipation structure of an air conditioner according to the present invention;

fig. 5 is a schematic view illustrating a connection and disassembly structure of a motor and a fan in a motor heat dissipation structure of an air conditioner according to the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Fan blower	31	Rotating shaft
11	Connecting rod	311	Mounting groove
				12	Wind-guiding blade	32	Fan blade
20	Electric machine	40	Snap ring
				21	Motor body	50	Protective cover
22	First output shaft	51	Heat dissipation port
				221	Clamping groove	60	Spiral casing
23	Second output shaft	61	Air duct
				30	Fan with cooling device	611	Air outlet

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, in an embodiment of the present invention, a heat dissipation structure for a motor 20 of an air conditioner is provided, where the heat dissipation structure for the motor 20 of the air conditioner includes: fan 10, motor 20 and heat sink. The fan 10 is disposed on one side of the motor 20, and the heat sink is disposed on one side of the motor 20 away from the fan 10. In this embodiment, the fan 10 is disposed on one side of the motor 20, and a heat sink is mounted on one side of the motor 20 away from the fan 10, and the heat sink is used for dissipating heat of the motor 20. When the motor 20 is started, the motor 20 drives the fan 10 to rotate, meanwhile, the heat dissipation piece dissipates heat to the motor 20, the motor 20 can generate heat in the process of driving the fan 10 to rotate, and meanwhile, the heat generated by the heat dissipation piece is dissipated, so that the motor 20 can be prevented from generating heat for a long time in the working process and being incapable of dissipating the heat, the heat generated by the motor 20 can be taken away by the heat dissipation piece, the heat dissipation effect is good, and the service life of the motor 20 is prolonged. Moreover, the heat dissipation part is arranged away from the fan 10, the heat dissipation part does not occupy the space of the fan 10 when the motor 20 is cooled, the blowing of the fan 10 is not influenced, and the heat dissipation is carried out when the blowing of the fan 10 is ensured.

Wherein, motor 20 includes: the fan comprises a motor body 21, a first output shaft 22 and a second output shaft 23, wherein the first output shaft 22 and the second output shaft 23 are respectively arranged on two sides of the motor body 21, a heat dissipation piece is connected with the first output shaft 22, and the fan 10 is connected with the second output shaft 23. In a preferred embodiment, when the motor 20 is turned on, the motor body 21 simultaneously drives the first output shaft 22 and the second output shaft 23 to rotate, the first output shaft 22 is connected with the heat sink, so that the first output shaft 22 drives the heat sink to rotate, the fan 10 is connected with the second output shaft 23, and the second output shaft 23 drives the fan 10 to rotate. Therefore, the purpose of radiating heat simultaneously when the motor 20 drives the fan 10 to rotate can be achieved.

Preferably, the heat sink is a fan 30, the fan 30 is connected to the first output shaft 22, and an air outlet side of the fan 30 faces the motor body 21. In a preferred embodiment, the fan 30 is connected to one end of the first output shaft 22 away from the motor body 21, so that when the motor 20 drives the fan 30 to rotate through the first output shaft 22, and thus the motor 20 is turned on, the first output shaft 22 drives the fan 30 to rotate, so that the fan 30 starts blowing air to the outside, and the air outlet side of the fan 30 is disposed toward the motor body 21, so that the air blown out from the fan 30 can be blown to the motor body 21, thereby cooling and dissipating heat of the motor body 21 by the fan 30. The heat sink is not limited to the fan 30 of the present invention, and it is understood that in other embodiments, the heat sink may be a component for generating cooling or other components capable of blowing air to the motor 20, as long as the purpose of dissipating heat generated by the motor 20 is achieved.

As shown in fig. 4 and 5, the fan 30 includes a rotating shaft 31 and a plurality of fan blades 32 surrounding the rotating shaft 31, a mounting groove 311 is opened on one side of the rotating shaft 31 facing the motor body 21, and one end of the first output shaft 22 away from the motor body 21 is mounted in the mounting groove 311. In a preferred embodiment, a mounting groove 311 is provided on a side of the rotating shaft 31 of the fan 30 facing the motor body 21, and when the fan 30 is mounted, an end of the first output shaft 22 away from the motor body 21 is mounted in the mounting groove 311, thereby completing the assembly of the fan 30. A plurality of fan blades 32 capable of rotating to generate air volume are uniformly arranged at intervals on the periphery of the rotating shaft 31 of the fan 30, when the first output shaft 22 drives the rotating shaft 31 to rotate, the rotating shaft 31 drives the plurality of fan blades 32 to rotate simultaneously, and therefore rotary air blowing of the fan 30 is achieved.

A snap ring 40 is arranged in the mounting groove 311, and a clamping groove 221 clamped with the snap ring 40 is arranged at one end of the first output shaft 22 far away from the motor body 21. In a preferred embodiment, a clamping groove 221 is formed at one end of the first output shaft 22 close to the fan 30, a snap ring 40 is disposed in the mounting groove 311, and after the first output shaft 22 is mounted in the mounting groove 311, the snap ring 40 is clamped in the clamping groove 221 in order to further strengthen the connection between the first output shaft 22 and the rotating shaft 31. Wherein, the snap ring 40 can be a square, round or strip-shaped clamping assembly.

In addition, when the fan 30 is installed, the rotation center line of the fan 30 coincides with the rotation center line of the fan 10, so that the motor 20 can synchronously drive the fan 30 and the fan 10 to rotate, the rotation speeds of the fan 30 and the fan 10 are the same, and heat generated by the motor 20 can be better and faster dissipated.

As shown in fig. 2, the heat dissipation structure of the motor 20 of the air conditioner further includes a protective cover 50 covering the motor body 21, the protective cover 50 plays a role of protecting the motor body 21, so as to prevent the motor body 21 from being damaged in the operation process, in order to facilitate the heat dissipation of the motor body 21, a heat dissipation opening 51 is formed in the protective cover 50, and the heat dissipation member is located outside the protective cover 50 and is directly opposite to the heat dissipation opening 51. In a preferred embodiment, the protective cover 50 is provided with a buckle, a protrusion is provided on one side of the motor body 21 facing the first output shaft 22, and when the protective cover 50 is mounted on the motor body 21, the buckle is clamped on the protrusion, so that the mounting structure is convenient to disassemble and assemble. The position of the protective cover 50 corresponding to the fan 30 in this embodiment is provided with a heat dissipation opening 51 for heat dissipation, when the motor 20 is turned on, the fan 30 is driven to rotate, and the wind of the fan 30 is blown away towards the motor body 21 through the heat dissipation opening 51, so as to achieve the purpose of heat dissipation of the motor body 21. Meanwhile, the fan 30 is disposed outside the protection cover 50 and away from the air duct 61, so that the space of the air duct 61 is not occupied for heat dissipation. In addition, a protective cover plate (not shown) is further disposed on the outer periphery of the motor 20, and the motor 20 and the volute 60 can be detachably connected through the protective cover plate by screws, screws or clamping, so as to facilitate the disassembly and assembly of the motor 20.

Moreover, the present invention further provides an air conditioner, the air conditioner includes a volute 60 and the heat dissipation structure of the motor 20 of the air conditioner as described above, as shown in fig. 1 and fig. 2, an air duct 61 is formed in the volute 60, the volute 60 has an air inlet (not shown) and an air outlet 611 which are communicated with the air duct 61, an air duct assembly and an air guide assembly are disposed in the air duct 61, wherein the air duct assembly includes a heat exchanger and a fan 10, the fan 10 in the air duct assembly corresponds to the air inlet 611 of the volute 60, the heat exchanger in the air duct assembly corresponds to the air outlet 611 of the volute 60, and the motor 20 drives the fan 10 to rotate, so that an air flow is sucked into the air duct 61 from the air inlet and is discharged from the air outlet 611 after. In the preferred embodiment, an air duct 61 is formed in the volute 60 of the air conditioner, and the volute 60 has a volute tongue, and an air inlet and an air outlet 611 are formed on the volute 60, and both the air inlet and the air outlet 611 are communicated with the air duct 61. The fan 10 and the heat exchanger are disposed in the air duct 61, and the fan 30 is disposed on a side of the motor 20 away from the air duct 61. In the air-conditioning refrigeration mode, the motor 20 drives the fan 10 to rotate, the fan 10 sucks external high-temperature airflow into the air duct 61 from the air inlet, and then the high-temperature airflow is subjected to heat exchange in the air duct 61 through the heat exchanger and then low-temperature airflow is discharged from the air outlet 611 to the outside, so that the air conditioner is cooled to the external environment; in the heating mode of the air conditioner, the motor 20 drives the fan 10 to rotate, the fan 10 sucks external low-temperature airflow into the air duct 61 from the air inlet, and then the low-temperature airflow is subjected to heat exchange in the air duct 61 through the heat exchanger and then high-temperature airflow is discharged from the air outlet 611 to the outside, so that the temperature of the air conditioner to the external environment is raised.

As shown in fig. 4 and 5, the air conditioner further includes a wind guide assembly disposed in the wind channel 61, the wind guide assembly being disposed facing the wind, wherein the wind guide assembly includes a connecting rod 11 and a plurality of wind guide blades 12 disposed on the connecting rod 11, the connecting rod 11 is connected with the first output shaft 22, and the plurality of wind guide blades 12 are uniformly spaced. A plurality of wind guide blades 12 are arranged on both sides of the connecting rod 11 at equal intervals, and the plurality of wind guide blades 12 are arranged along the extending direction of the connecting rod 11. Among them, the fan 10 is preferably a centrifugal fan 10 or a cross flow fan 10. The centrifugal fan 10 uses a principle of converting kinetic energy into potential energy, accelerates air by using the air guide blades 12 rotating at a high speed, and then decelerates and changes the flow direction, thereby sucking air flow into the air duct 61.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a motor heat radiation structure of air conditioner which characterized in that, the motor heat radiation structure of air conditioner includes:

a motor;

the fan is arranged on one side of the motor;

2. The motor heat dissipation structure of an air conditioner as claimed in claim 1, wherein the motor comprises:

3. The motor heat dissipation structure of an air conditioner as claimed in claim 2, wherein the heat dissipation member is a fan, the fan is connected to the first output shaft, and an air outlet side of the fan faces the motor body.

4. The motor heat dissipation structure of an air conditioner as set forth in claim 3, wherein the fan comprises:

5. The motor heat dissipation structure of an air conditioner as claimed in claim 4, wherein a snap ring is provided in the mounting groove, and a snap groove engaged with the snap ring is provided at an end of the first output shaft away from the motor body.

6. The motor heat dissipation structure of an air conditioner as claimed in claim 4, wherein a rotation center line of the fan coincides with a rotation center line of the blower fan.

7. The motor heat dissipation structure of an air conditioner according to claim 4, further comprising:

8. The motor heat dissipation structure of an air conditioner according to any one of claims 1 to 7, wherein the fan is a centrifugal fan or a cross-flow fan.

9. An air conditioner, characterized in that the air conditioner comprises:

the air duct assembly is arranged in the air duct;

the motor heat dissipation structure of the air conditioner as claimed in any one of claims 1 to 8.

10. The air conditioner according to claim 9, wherein a plurality of said air guide vanes are arranged at regular intervals along an extending direction of said link.