Fan coil motor with dustproof structure

Abstract

The utility model relates to the technical field of motors, in particular to a fan coil motor with a dustproof structure, the fan coil motor comprises a shell, a stator and a rotor, the stator and the rotor are arranged in the shell, a rotating shaft connected with the rotor is arranged in the shell in a penetrating mode, and the rotating shaft is in running fit with the shell through a bearing. The side wall of the shell is provided with an installation part used for limiting the bearing, the outer side of the installation part is provided with a first blocking part and extends to the outer side of the rotating shaft, a second blocking part is arranged on the rotating shaft and located between the installation part and the first blocking part, and the first blocking part is movably connected with the second blocking part. And the joint of the mounting piece and the rotating shaft is protected through the first blocking piece and the second blocking piece. According to the fan coil motor, dust accumulation on the motor bearing can be effectively reduced, and meanwhile the operation efficiency of the fan coil motor is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric machines, in particular to a fan coil electric machine with a dustproof structure. BACKGROUND

[0002] The fan coil is a terminal device of a central air conditioner, and the simple working principle of the fan coil is that cold water or hot water flows through a screw copper pipe of a surface cooler, under the action of an electric machine, a fan wheel is driven to rotate, cold heat or hot heat brought by the cold water / hot water in the copper pipe is discharged, air is cooled, dehumidified or heated, so that the indoor air temperature or humidity is adjusted.

[0003] At present, the rotating shaft of the electric machine extends from one side of the end cover or simultaneously extends from both sides of the end cover, the fan wheel is installed on the rotating shaft, and when working, the rotating shaft drives the fan wheel to rotate, so that the cold heat or hot heat brought by the cold water / hot water in the copper pipe is effectively discharged. However, during the operation of the fan coil, dust in the air is easy to accumulate on the relatively humid fan blades and the rotating shaft of the electric machine, and the long-time operation of the rotating shaft directly causes the dust to gradually penetrate into the bearing in the electric machine, thereby affecting the heat exchange efficiency and the operation of the fan. CONTENT OF THE UTILITY MODEL

[0004] In order to effectively reduce the accumulation of dust on the bearing of the electric machine and improve the operation efficiency of the fan coil electric machine, the application provides a fan coil electric machine with a dustproof structure.

[0005] The application provides a fan coil electric machine with a dustproof structure, which comprises a shell, a stator and a rotor, the stator and the rotor are arranged in the shell, a rotating shaft connected with the rotor is arranged in the shell, the rotating shaft is rotationally connected with the shell through a bearing, a mounting piece for limiting the bearing is arranged on the side wall of the shell, a first blocking piece is arranged on the outside of the mounting piece and extends to the outside of the rotating shaft, a second blocking piece is arranged on the rotating shaft and located between the mounting piece and the first blocking piece, and the first blocking piece and the second blocking piece are movably connected, so as to protect the connection between the mounting piece and the rotating shaft through the first blocking piece and the second blocking piece.

[0006] By adopting the above technical scheme, the rotor in the shell rotates under the action of the electromagnetic field of the stator, and drives the rotating shaft to rotate, so as to drive the fan wheel, wherein the rotating shaft and the shell are rotationally connected through the bearing, so as to reduce the friction between the rotating shaft and the shell and improve the output stability of the rotating shaft.

[0007] In addition, compared with the existing fan coil motor, the mounting piece is arranged between the shell and the bearing, so that the bearing is stably assembled at the side wall of the shell and the sealing performance after the bearing is installed is improved, the first barrier and the second barrier outside the mounting piece can shield the outside of the bearing and the rotating shaft connection, further helping to reduce the accumulation of dust and other impurities on the bearing, and achieving the purpose of improving the operation efficiency of the fan coil motor after long time use.

[0008] Optionally, the mounting piece comprises an insertion part and a locking part, the insertion part is arranged on the side wall of the shell and abuts against the bearing, and the inner wall of the locking part abuts against the outer wall of the insertion part.

[0009] By adopting the above technical scheme, the insertion part can accommodate the bearing, so that the bearing is stably assembled outside the rotating shaft, and the locking part abuts against the outer wall of the insertion part, so that the limiting effect of the insertion part on the bearing is improved.

[0010] Optionally, the first barrier comprises an extension part and a first connecting part, the extension part is arranged outside the locking part and extends to the side of the rotating shaft, and the first connecting part is arranged inside the extension part and movably connected with the second barrier.

[0011] By adopting the above technical scheme, the extension part can improve the shielding area outside the connection between the mounting piece and the bearing, and the first connecting part is matched with the second barrier, so as to further improve the blocking effect of the first barrier on dust and other impurities.

[0012] Optionally, the second barrier comprises a positioning part and a second connecting part, the positioning part is arranged around the outer wall of the rotating shaft, and the second connecting part is arranged on the side wall of the positioning part and connected with the first connecting part.

[0013] By adopting the above technical scheme, the positioning part is stably abutted against the outer wall of the rotating shaft, which helps to improve the sealing performance of the connection between the bearing and the mounting piece, and the second connecting part is matched with the first connecting part, so as to further enhance the blocking effect of the first barrier and the second barrier on dust and other impurities outside the mounting piece, so as to achieve the purpose of reducing the accumulation of dust and other impurities on the bearing.

[0014] Optionally, the side wall of the first connecting part is provided with a groove, and the second connecting part extends into the groove of the first connecting part.

[0015] By adopting the above technical scheme, the second connecting part extends into the groove of the first connecting part, so as to help improve the blocking effect of the second connecting part and the first connecting part on dust and other impurities.

[0016] Optionally, the mounting member further comprises a fitting portion, and the extension portion is integrally formed with the first connecting portion on the outer side of the fitting portion.

[0017] By adopting the above technical solution, the fitting portion integrally formed on the outer wall of the locking portion can reduce the connection gap between the extension portion and the locking portion, thereby better improving the blocking effect of the first blocking member.

[0018] Optionally, an annular groove is formed in the outer wall of the rotating shaft, and the positioning portion is fitted in the annular groove.

[0019] By adopting the above technical solution, the positioning portion can be fitted in the annular groove, thereby improving the connection stability between the positioning portion and the rotating shaft, and also making the inner diameter of the positioning portion smaller than the inner diameter of the insertion portion, so as to further improve the blocking effect of the first blocking member on dust and other impurities.

[0020] Optionally, the fitting portion is arranged on the side wall of the locking portion and is fitted with the side wall of the insertion portion.

[0021] By adopting the above technical solution, the connection stability between the locking portion and the insertion portion can be better improved, so as to reduce the operation noise of the motor.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By rotating the rotor in the shell under the action of the energized magnetic field of the stator, the rotation of the rotating shaft is driven to realize the driving of the wind wheel. The rotating shaft and the shell are rotatably connected through the bearing, which reduces the friction between the rotating shaft and the shell and improves the output stability of the rotating shaft. In addition, compared with the existing fan coil motor, the mounting member is arranged between the shell and the bearing, so that the bearing is stably assembled on the side wall of the shell and the sealing performance after the bearing is installed is improved. The first blocking member and the second blocking member arranged on the outer side of the mounting member can shield the outer side of the connection between the bearing and the rotating shaft, which further helps to reduce the accumulation of dust and other impurities on the bearing, thereby improving the operation efficiency of the fan coil motor after long-term use.

[0024] 2. By fitting the positioning portion in the annular groove, the connection stability between the positioning portion and the rotating shaft can be effectively improved, and the inner diameter of the positioning portion is smaller than the inner diameter of the insertion portion, thereby further improving the blocking effect of the first blocking member on dust and other impurities. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the internal structure schematic diagram of the fan coil motor of the embodiment one of the present application;

[0026] Figure 2 isFigure 1 Enlarged view of middle A;

[0027] Figure 3 is a schematic view of the internal structure of the fan coil motor of Embodiment Two of the present application;

[0028] Figure 4 is Figure 3 Enlarged view of middle B.

[0029] Reference signs: 1, housing; 2, stator; 3, rotor; 4, rotating shaft; 41, annular groove; 5, bearing; 6, mounting piece; 61, insertion part; 62, locking part; 63, fitting part; 7, first barrier; 71, extension part; 72, first connecting part; 721, groove; 73, lead-out hole; 74, lead-out inclined surface; 8, second barrier; 81, positioning part; 82, second connecting part. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0031] The present application discloses a fan coil motor with a dustproof structure.

[0032] Embodiment One:

[0033] With reference to Figures 1-2 , the fan coil motor comprises a housing 1, a stator 2 and a rotor 3. Among them, the stator 2 and the rotor 3 are both installed inside the housing 1, and the stator 2 is installed on the inner wall of the housing 1 and located on the outside of the rotor 3. At the same time, a rotating shaft 4 is installed through the inside of the rotor 3, and the two ends of the rotating shaft 4 respectively penetrate through the two sides of the housing 1, and the surfaces of the two ends of the rotating shaft 4 are both connected with the inner wall of the housing 1 in rotation through bearings 5.

[0034] Specifically, in order to improve the stability and sealing performance of the bearing 5, mounting pieces 6 are arranged on both sides of the housing 1 corresponding to the positions of the bearing 5, and first barriers 7 are arranged on the sides of the mounting pieces 6 away from the housing 1, and at the same time, second barriers 8 are installed on the outer wall of the rotating shaft 4, and the second barriers 8 are located between the first barriers 7 and the mounting pieces 6 as a whole.

[0035] With reference to Figures 1-2 , in this embodiment, the mounting piece 6 comprises an insertion part 61 and a locking part 62. Among them, the insertion part 61 of the mounting piece 6 located on the front side of the housing 1 is installed on the front wall of the housing 1 and abuts against the side of the bearing 5 away from the rotor 3, while the insertion part 61 of the mounting piece 6 located on the rear side of the housing 1 is fitted on the inner wall of the housing 1 and abuts against the side of the bearing 5 away from the rotor 3. At the same time, the locking part 62 is entirely sleeved on the outer wall of the insertion part 61.

[0036] Specifically, in the embodiment, the first barrier 7 comprises an extension part 71 and a first connecting part 72. The extension part 71 is integrally formed on the side of the locking part 62 away from the shell 1 and is arranged towards the direction close to the rotating shaft 4, while the first connecting part 72 is integrally formed on the side of the extension part 71 close to the rotating shaft 4 and extends towards the direction of the second barrier 8, and the first connecting part 72 is located on the side of the rotating shaft 4.

[0037] Specifically, in the embodiment, the second barrier 8 comprises a positioning part 81 and a second connecting part 82. An annular groove 41 is formed on the outer wall of the rotating shaft 4, and the positioning part 81 is sleeved on the outer wall of the rotating shaft 4 and is fitted with the annular groove 41. The second connecting part 82 is provided with two, and the two second connecting parts 82 are respectively arranged on the two side walls of the positioning part 81 and are integrally formed with the positioning part 81, and the length of the second connecting part 82 close to the first connecting part 72 is greater than the length of the second connecting part 82 close to the shell 1. In the embodiment, the materials of the insertion part 61, the extension part 71, the first connecting part 72, the positioning part 81 and the second connecting part 82 can be selected as rubber.

[0038] Referring to Figures 1-2 In order to better improve the dustproof effect, a groove 721 is arranged on the side wall of the side of the first connecting part 72 close to the second connecting part 82, and the second connecting part 82 close to the first connecting part 72 extends into the groove 721, thereby forming a labyrinth structure, which effectively enhances the barrier effect of the first connecting part 72 and the second connecting part 82 to foreign matters in the external environment.

[0039] Specifically, in order to better improve the assembly stability of the locking part 62 located on the front wall of the shell 1, in the embodiment, the mounting part 6 further comprises a fitting part 63, and the fitting part 63 is arranged on the side of the locking part 62 close to the shell 1. At the same time, the insertion part 61 on the front wall of the shell 1 is embedded into the inner side of the shell 1 and forms a matching groove on the outer wall of the insertion part 61, and the fitting part 63 extends and is fitted into the matching groove on the outer wall of the insertion part 61, thereby helping to improve the contact area between the locking part 62 and the insertion part 61, achieving the purpose of enhancing the limiting effect of the locking part 62 on the assembly of the bearing 5.

[0040] Principle of implementation: during installation, the insertion part 61 on the rear side of the shell 1 can be first tightly attached to the rear wall inside the shell 1 where the stator 2 has been pre-installed, then the two bearings 5 and the rotor 3 are sequentially sleeved on the two sides of the rotating shaft 4, and the rotating shaft 4 is inserted into the shell 1 from the front side of the shell 1, so that the bearing 5 is tightly abutted against the insertion part 61 on the rear wall inside the shell 1 and then one end is pulled out from the rear side of the shell 1, and then the second barrier 8 is sleeved on the surface of the rotating shaft 4 on both sides, so that the positioning part 81 in the second barrier 8 is fitted into the annular groove 41 at the corresponding position on the outer wall of the rotating shaft 4.

[0041] Then the insertion part 61 on the front side of the shell 1 is fitted and installed, so that the outer wall of the bearing 5 on the front side of the shell 1 can be tightly attached to the inner wall of the insertion part 61, and then the locking part 62 is sleeved on the front and rear sides of the shell 1, and the locking part 62 on the front side of the shell 1 is gradually pressed into the insertion part 61 through the embedding part 63, so that the insertion part 61 on the front side of the shell 1 is gradually embedded into the inside of the shell 1, and at this time the groove 721 on the side wall of the first connecting part 72 on the front and rear sides of the shell 1 is gradually inserted into the corresponding position of the second connecting part 82, thereby realizing the assembly of the fan coil motor with the dustproof structure.

[0042] Embodiment two

[0043] Reference Figures 3-4 The difference between the embodiment and the embodiment one is that the first barrier 7 of the embodiment further comprises a plurality of guide-out holes 73. The plurality of guide-out holes 73 are uniformly and vertically arranged in the side wall of the first connecting part 72, and correspond to the side of the second connecting part 82 away from the shell 1 and are distributed in a ring shape, and the guide-out holes 73 are inclined to the side close to the rotating shaft 4. In addition, the guide-out inclined surface 74 is integrally formed in the groove 721 on the side of the first connecting part 72, and the guide-out inclined surface 74 is located on the side of the groove 721 away from the rotating shaft 4, and the guide-out inclined surface 74 is connected with the inclined surface of the inner wall of the guide-out hole 73.

[0044] Principle: When the rotating shaft 4 drives the second barrier 8 to rotate, the dust and other foreign matters accumulated between the first barrier 7 and the second barrier 8 will be transferred along the guide-out inclined surface 74 and towards the plurality of guide-out holes 73 on the first connecting part 72 under the driving and pushing of the second barrier 8, and will be pushed out from the outside of the first connecting part 72, thereby better reducing the situation that the dust and other impurities enter into the shell 1.

[0045] The embodiments of the specific embodiment are the preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A fan coil unit motor with a dustproof structure, comprising a housing (1), a stator (2) and a rotor (3), wherein the stator (2) and the rotor (3) are arranged in the housing (1), and a rotating shaft (4) connected to the rotor (3) is provided through the housing (1), characterized in that: The rotating shaft (4) is rotatably engaged with the housing (1) through a bearing (5); a mounting member (6) for limiting the bearing (5) is provided on the side wall of the housing (1); a first blocking member (7) is provided on the outer side of the mounting member (6) and extends to the outer side of the rotating shaft (4); a second blocking member (8) is provided on the rotating shaft (4) and located between the mounting member (6) and the first blocking member (7); the first blocking member (7) and the second blocking member (8) are movably connected to each other, so as to protect the connection between the mounting member (6) and the rotating shaft (4) through the first blocking member (7) and the second blocking member (8).

2. The fan coil motor with a dustproof structure according to claim 1, characterized in that: The mounting member (6) comprises an inserting portion (61) and a locking portion (62); the inserting portion (61) is arranged on the side wall of the housing (1) and abuts against the bearing (5); the inner wall of the locking portion (62) abuts against the outer wall of the inserting portion (61).

3. The fan coil motor with a dustproof structure according to claim 2, characterized in that: The first blocking member (7) comprises an extension portion (71) and a first connecting portion (72), wherein the extension portion (71) is arranged on the outside of the locking portion (62) and extends to the circumference of the rotating shaft (4), and the first connecting portion (72) is arranged on the inside of the extension portion (71) and is movably connected to the second blocking member (8).

4. The fan coil motor with a dustproof structure according to claim 3, characterized in that: The second blocking member (8) comprises a positioning portion (81) and a second connecting portion (82), wherein the positioning portion (81) is arranged around the outer wall of the rotating shaft (4), and the second connecting portion (82) is arranged on the side wall of the positioning portion (81) and connected to the first connecting portion (72).

5. The fan coil motor with a dustproof structure according to claim 4, characterized in that: A groove (721) is provided on the side wall of the first connecting portion (72), and the second connecting portion (82) extends into the groove (721) of the first connecting portion (72).

6. The fan coil motor with a dustproof structure according to claim 3, characterized in that: The mounting member (6) further includes a fitting portion (63), and the extension portion (71) and the first connecting portion (72) are integrally formed on the outside of the fitting portion (63).

7. The fan coil unit motor with a dustproof structure according to claim 4, characterized in that: An annular groove (41) is formed on the outer wall of the rotating shaft (4), and the positioning portion (81) is embedded in the annular groove (41).

8. The fan coil motor with a dustproof structure according to claim 6, characterized in that: The engaging portion (63) is provided on the side wall of the locking portion (62) and is engaged with the side wall of the inserting portion (61).

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