TWM617619U - Blower device - Google Patents

Abstract

This creation provides a blower device, which includes a main body, an air duct shell, a fan unit and a brushless motor module. The main body has a first accommodating space inside, and the outer surface has a combined part. The combination part divides the outer surface of the main body into a first section and a second section provided with heat dissipation and noise reduction parts. The air duct shell is arranged at the combination part and covers the first section, and forms a second accommodating space with the main body part. The air duct shell is provided with an air outlet channel and an air inlet. The fan unit is disposed in the second accommodating space. The brushless motor module is arranged in the first accommodating space, is connected to the fan unit, and has a predetermined dynamic balance configuration. The blower device of this creation can effectively achieve heat dissipation, and further reduce noise through the noise reduction structure and the predetermined dynamic balance configuration.

Description

Blower device

This creation is related to the technical field of a blower, especially a blower device with both heat dissipation and noise reduction functions.

The conventional blower usually uses an upper air inlet to suck in gas to change the direction and flow rate of the gas inside the blower, and then outputs the gas whose direction and flow rate have been changed through an outlet that is usually set in a tangential direction.

As far as the conventional blower is concerned, because the gas changes the direction and flow rate of the gas inside the blower, the gas is prone to turbulence inside the blower, resulting in noise and other problems, and it may also affect The operating efficiency of the fan.

On the other hand of the conventional blower, inhaling gas and changing the direction and flow rate of the gas is achieved by rotating the fan by the motor. However, the motor is prone to high temperature after being used for a long time, which causes problems such as reduction or damage of the motor life.

In summary, the creator of this creation designed a blower device to improve on the lack of existing technology, thereby enhancing the industrial application.

In view of the problems of the above-mentioned conventional technology, the purpose of this creation is to provide a blower device to improve the problems caused by the above-mentioned conventional technology.

Based on the above objective, the author provides a blower device, which includes a main body, an air duct housing, a fan unit, and a brushless motor module. The main body has a first accommodating space inside, and the outer surface of the main body has a combined part. The combination part is located between the two ends of the main body to divide the outer surface of the main body into a first section and a second section. Wherein, the first section is provided with heat dissipation and noise reduction parts. The air duct shell system is a disc-shaped structure, the air duct shell system is arranged at the combination part and covers the first section, and the inside of the air duct shell and the main body form a second accommodating space. The air duct housing is provided with an air outlet channel extending along the tangential direction of the disc-shaped structure to communicate the second accommodating space with the outside; in addition, the air duct housing is provided with an air inlet in the axial direction. The fan unit is arranged in the second accommodating space. The brushless motor module is arranged in the first accommodating space, and the rotating shaft of the brushless motor module passes through the first accommodating space to the second accommodating space and is connected to the fan unit.

Preferably, the main body member may have a cylindrical structure, the heat dissipation and noise reduction part includes a plurality of first fins, and the plurality of first fins may be arranged at intervals along the axial direction of the main body member.

D1/D2

1/6。 Preferably, the distance between the plurality of first fins is D1, and the length of the first section is D2, which satisfies the following conditions: 1/14

D1/D2

1/6.

D3/D2

1/10。 Preferably, the width of each of the first fins is D3, which satisfies the following conditions: 1/19

D3/D2

1/10.

Preferably, the second section may be provided with a heat dissipation portion, the heat dissipation portion includes a plurality of second fins, and the plurality of second fins may be arranged at intervals along the axial direction of the main body member.

Preferably, the brushless motor module may further include a rotor, the rotation shaft is arranged at one end of the rotor, at least one end of the rotor may be provided with a step, and the step may be provided with a counterweight.

Preferably, both ends of the rotor are provided with the stepped portion, and each of the stepped portions is provided with the counterweight.

Preferably, the counterweight member can be made of copper material, and the counterweight member can be provided with at least one cut-out portion corresponding to the dynamic balance.

Preferably, the height of the first section from the combination part to the end of the main body member may be greater than or equal to the height of the opening connecting the air outlet passage from the second accommodating space.

The technical features of this creation will be explained in detail below with specific embodiments and accompanying drawings, so that those with ordinary knowledge in the technical field can easily understand the purpose, technical features, and advantages of this creation.

100: Blower device

10: Main parts

101: The first section

102: Second section

11: The first housing space

12: Combination Department

13: Heat dissipation and noise reduction department

131: First Fin

14: Heat Dissipation Department

141: Second Fin

20: Air duct shell

201: Lower shell

202: upper shell

203: The second accommodating space

204: Ring groove

21: Air outlet channel

22: Air inlet

30: Fan unit

40: Brushless motor module

401: Rotation axis

41: Rotor

411: step

42: counterweight

421: Deletion

In order to more clearly illustrate the technical solution of the creative embodiment, the following will briefly introduce the drawings that need to be used in the description of the creative embodiment. Obviously, the drawings described below are only some embodiments of the creative. Those with ordinary knowledge in the technical field can also obtain other drawings based on these drawings.

Figure 1 is an exploded schematic diagram of the first embodiment of the created blower device.

Figure 2 is a combined schematic diagram of the first embodiment of the created blower device.

Figure 3 is a schematic cross-sectional view of the first embodiment of the created blower device.

Figure 4 is a first cross-section and a partial enlarged schematic diagram of the first embodiment of the created blower device.

In order to facilitate the understanding of the technical features, content and advantages of this creation and its achievable effects, this creation is combined with the accompanying drawings, and is described in detail in the form of embodiments as follows, and the schematics used therein are only In order to illustrate and supplement the manual, it may not be the true proportions and precise configuration after the implementation of this creation. Therefore, the proportion and configuration relationship of the attached drawings should not be interpreted, and the scope of rights of the creation in actual implementation should not be interpreted. Narrate.

It should be noted that when an element is referred to as being "connected to", "installed in" or "installed in" another element, it can be directly connected or set to another element, or a centered element may exist at the same time. In addition, if the terms "first" and "second" are used for descriptive purposes only, they cannot be understood as indicating or implying relative importance or its order or directional relationship.

Hereinafter, the blower device created according to the present invention will be described with reference to related drawings. For ease of understanding, the same elements in the following embodiments are described with the same symbols.

Please refer to Figures 1 to 4 together. Figure 1 is an exploded schematic diagram of the first embodiment of the created blower device. Figure 2 is a combined schematic diagram of the first embodiment of the created blower device. Figure 3 is a schematic cross-sectional view of the first embodiment of the created blower device. Figure 4 is a first cross-section and a partial enlarged schematic diagram of the first embodiment of the created blower device. As shown in the figure, a blower device 100 of the present invention includes a main body 10, an air duct housing 20, a fan unit 30, and a brushless motor module 40.

The main body 10 can be made of aluminum or other materials, and the main body 10 has a first accommodating space 11 inside. Furthermore, the main body 10 may be a cylindrical structure with one end closed and the other end completely open. In addition, the outer surface of the main body 10 has a combination portion 12, which can be a groove structure or a stepped structure, etc., or even a locking structure. In this embodiment, the combination portion 12 is a stepped structure. The structure is used as an example.

Wherein, the air duct housing 20 can be made of plastic material, which can be substantially a disc-shaped structure, and the air duct housing 20 is disposed on the combination part 12 and covers the first section 101 and is located in the first section. The heat dissipation and noise reduction part 13 on the section 101. Preferably, the air duct housing 20 can be divided into a lower housing 201 and an upper housing 202; that is, the lower housing 201 is disposed on the combination part 12, such as one side of the lower housing 201, which is tightly fitted It can be fixed to the combination part 12 in other ways, and the upper shell 202 is then arranged on the other side of the lower shell 201 by means of ultrasonic fusion or thermal fusion. Incidentally, a sealing ring (or gasket) can be arranged between the lower housing 201 and the combined part 12 to increase its air tightness.

Furthermore, the inside of the air duct housing 20 and the main body 10 form a second accommodating space 203. In addition, the air duct housing 20 is provided with an air outlet channel 21 extending along the tangential direction of the disc-shaped structure, and an air inlet 22 is provided in the axial direction of the air duct housing 20 to communicate with the second accommodating space 203 And external. In other words, the gas will enter through the upper inlet air inlet 22 and then be output from the air outlet channel 21.

Wherein, the fan unit 30 is disposed in the second accommodating space 203. Wherein, the fan unit 30 can be a centrifugal fan known to those with ordinary knowledge in the art, and will not be repeated here.

Wherein, the brushless motor module 40 can be a brushless motor known to those with ordinary knowledge in the art, the brushless motor module 40 is disposed in the first accommodating space 11, and the brushless motor module 40 The rotating shaft 401 passes through (through the end closed by the cylindrical structure) the first accommodating space 11 to the second accommodating space 203 and is connected to the fan unit 30.

Please refer to Figures 3 and 4 for cooperation. It is worth mentioning that the combination portion 12 is located between the two ends of the main body 10, for example, approximately at the middle section, so that the combination portion 12 divides the outer surface of the main body 10 into a first section 101 and a second section. 102; Among them, the first section 101 is provided with a heat dissipation and noise reduction portion 13. The heat dissipation and noise reduction portion 13 includes a plurality of first fins 131, and the plurality of first fins 131 are arranged at intervals along the axial direction of the main body 10. Preferably, the distance between the plurality of first fins 131 may be D1, and the length of the first section 101 may be D2, and D1/D2 may be between 1/14 and 1/6, preferably The ground can be between 1/11 and 1/9. Among them, if the distance between the plurality of first fins 131 is too large, the diversion effect may not be optimal, and if the distance between the plurality of first fins 131 is too small, it may also have a poor diversion effect. To achieve the best situation, even the opposite effect occurs.

In addition, the width of each of the first fins 131 may be D3, and D3/D2 may be between 1/19 and 1/10, and preferably between 1/16 and 1/14. Among them, if the width of the first fin 131 is too large, the diversion effect may not be optimal, and if the width of the first fin 131 is too small, it may also cause the diversion effect is not optimal, or even A counter-productive situation occurs.

The blower device 100 of the present invention uses the predetermined configuration of the heat dissipation and noise reduction part 13 to change the flow direction and velocity of the air while the fan unit 30 uses the first fin 131 to control the air in the air duct housing 20. The formation of diversion, which makes the flow of gas more stable, and thus achieves the purpose of reducing noise. In addition, due to the arrangement of the first fin 131, it also increases the surface area of the main body 10, and the brushless motor module 40 is arranged in the main body 10 and is in contact with the main body 10, so that the first fin 131 can also reach Good heat dissipation effect.

Incidentally, the second section 102 may also be provided with a heat dissipation portion 14. The heat dissipation portion 14 includes a plurality of second fins 141, and the plurality of second fins 141 are along the axial direction of the main body 10 The spaced arrangement also increases the surface area of the main body 10, and the brushless motor module 40 is arranged in the main body 10 and is in contact with the main body 10, so that the second fins 141 can also achieve a good heat dissipation effect. Although in this embodiment, the first section 101 is provided with the heat dissipation and noise reduction portion 13, and the second section 102 is provided with the heat dissipation portion 14, however, in actual use, depending on the actual situation, only the first section 101 is provided. The heat dissipation and noise reduction part 13 is sufficient. Therefore, it should be possible that in this embodiment, the first section 101 is provided with a heat dissipation and noise reduction portion 13, while the second section 102 is provided with a heat dissipation portion 14 as a limitation.

Please refer to Figure 3 for cooperation. On the other hand, the height of the second section 102 from the combined part 12 to the end of the main body 10 is greater than or equal to the height of the opening of the air outlet channel 21 connected by the second accommodating space 203. Thereby, the gas in the air duct housing 20 can smoothly enter the air outlet channel 21 and then be output to the outside, thereby further achieving the purpose of reducing noise.

It is also worth mentioning that the brushless motor module 40 further includes a rotor 41. The rotating shaft 401 is disposed at one end of the rotor 41. At least one end of the rotor 41 is provided with a step portion 411, and the step portion 411 A counterweight 42 is provided on it. Preferably, both ends of the rotor 41 are provided with the stepped portion 411, and each of the stepped portions 411 is provided with the counterweight 42. The counterweight 42 is made of copper material, and the counterweight 42 is provided with at least one cut-out portion 421 corresponding to the dynamic balance. The blower device 100 of the present invention, through the above-mentioned predetermined configuration, has a good dynamic balance when the rotor 41 is rotating, and thus has a good stability.

The above descriptions are merely illustrative and not restrictive. Any equivalent modifications or changes that do not depart from the spirit and scope of this creation should be included in the scope of the attached patent application.

100: Blower device

10: Main parts

101: The first section

102: Second section

12: Combination Department

13: Heat dissipation and noise reduction department

14: Heat Dissipation Department

20: Air duct shell

201: Lower shell

202: upper shell

21: Air outlet channel

22: Air inlet

30: Fan unit

40: Brushless motor module

401: Rotation axis

42: counterweight

421: Deletion

Claims (9)

A blower device includes: a main body part with a first accommodating space inside the main body part, and the outer surface of the main body part has a combined part, and the combined part is located between the two ends of the main body part The outer surface of the main body is divided into a first section and a second section, wherein the first section is provided with a heat dissipation and noise reduction part; an air duct shell is a disc-shaped structure, The air duct shell system is arranged on the combined part and covers the first section, and the inside of the air duct shell and the main body part form a second accommodating space, and the air duct shell is along the disc shape An air outlet channel extends in the tangential direction of the structure to communicate the second accommodating space with the outside. An air inlet is provided in the axial direction of the air duct housing; a fan unit is arranged in the second accommodating space And a brushless motor module arranged in the first accommodating space, and a rotating shaft of the brushless motor module passes through the first accommodating space to the second accommodating space and is connected to the fan unit. The blower device according to claim 1, wherein the main body member has a cylindrical structure, the heat dissipation and noise reduction part includes a plurality of first fins, and the plurality of first fins are along the axis of the main body member Arranged at intervals in the direction. The blower device according to claim 2, wherein the distance between the plurality of first fins is D1, and the length of the first section is D2, which satisfies the following conditions: 1/14

D1/D2

1/6. The blower device according to claim 3, wherein the width of each of the first fins is D3, which meets the following conditions: 1/19

D3/D2

1/10. The blower device according to claim 1, wherein the second section is provided with a heat dissipation portion, the heat dissipation portion includes a plurality of second fins, and the plurality of second fins are spaced apart along the axial direction of the main body member arrangement. The blower device according to claim 1, wherein the brushless motor module further includes a rotor, the rotating shaft is disposed at one end of the rotor, at least one end of the rotor is provided with a stepped portion, and the stepped portion is A counterweight is provided. The blower device according to claim 6, wherein both ends of the rotor are provided with the stepped portion, and each of the stepped portions is provided with the counterweight. The blower device according to claim 6 or 7, wherein the counterweight is made of copper, and the counterweight is provided with at least one cut-out part corresponding to the dynamic balance. The blower device according to claim 1, wherein the height of the first section from the combined part to the end of the main body member is greater than or equal to the height of the opening connecting the air outlet passage from the second accommodating space.

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