CN215170866U

CN215170866U - Blower device

Info

Publication number: CN215170866U
Application number: CN202120865852.2U
Authority: CN
Inventors: 郑琳达
Original assignee: Acare Technology Co ltd
Current assignee: Acare Technology Co ltd
Priority date: 2021-03-02
Filing date: 2021-04-26
Publication date: 2021-12-14
Anticipated expiration: 2031-04-26
Also published as: TWM617619U

Abstract

The utility model provides an air blower device, it contains main part spare, wind channel casing, fan unit and brushless motor module. The main body piece is internally provided with a first accommodating space, and the outer surface of the main body piece is provided with a combined part. The combination part divides the outer surface of the main body part into a first section and a second section which are provided with heat dissipation and noise reduction parts. The air duct shell is arranged on the combination part, covers the first section and forms a second accommodating space with the main body piece. The air duct shell is provided with an air outlet channel and an air inlet. The fan unit is arranged in the second accommodating space. The brushless motor module is arranged in the first accommodating space, is connected with the fan unit and has a preset dynamic balance configuration. The utility model discloses an air-blower device can effectively reach the thermolysis to further through falling the structure of making an uproar and predetermined dynamic balance configuration, thereby noise reduction.

Description

Blower device

Technical Field

The utility model relates to a technical field of air-blower, in particular to have heat dissipation concurrently and fall air-blower device of function of making an uproar.

Background

In a known blower, air is sucked through an air inlet disposed above the blower to change the direction and flow rate of the air inside the blower, and the changed direction and flow rate of the air is outputted through an air outlet disposed generally in a tangential direction. However, the prior blower has the following defects:

first, since the gas changes the direction and flow rate of the gas inside the blower, the gas is liable to have turbulence, etc. inside the blower, causing problems such as noise, etc., and it may also affect the operating efficiency of the fan.

Second, the air is sucked in and the direction and flow rate of the air are changed, which is achieved by the motor driving the fan to rotate. However, the motor is liable to generate high temperature after a long time use, thereby causing problems such as reduction in the life of the motor or damage.

In view of the foregoing, it is desirable to design a blower device to improve the shortcomings of the prior art and further enhance the industrial application.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a blower device to improve the problems of the background art.

Based on the above object, the utility model provides an air blower device, it contains main part, wind channel casing, fan unit and brushless motor module. The main body piece is internally provided with a first accommodating space, and the outer surface of the main body piece is provided with a combined part. The combination part is positioned between the two ends of the main body part so as to divide the outer surface of the main body part into a first section and a second section. Wherein, the first section is provided with a heat dissipation and noise reduction part. The air duct shell is of a disc-shaped structure, is arranged on the combined part and covers the first section, and forms a second accommodating space with the main body part inside. The air duct shell is provided with an air outlet channel extending along the tangential direction of the disc-shaped structure so as to communicate the second accommodating space with the outside; in addition, an air inlet is arranged in the axial direction of the air duct shell. The fan unit is arranged in the second accommodating space. The brushless motor module is arranged in the first accommodating space, and a rotating shaft of the brushless motor module penetrates through the first accommodating space to the second accommodating space and is connected with the fan unit.

Preferably, the main body member is a cylindrical structure, and the heat dissipating and noise reducing portion includes a plurality of first fins arranged at intervals along an axial direction of the main body member.

Preferably, the distance between the plurality of first fins is D1, the length of the first section is D2, and the following conditions are satisfied: 1/14 is not less than D1/D2 is not less than 1/6.

Preferably, the width of the first fin is D3, which satisfies the following condition: 1/19 is not less than D3/D2 is not less than 1/10.

Preferably, the second section is provided with a heat dissipation part, the heat dissipation part comprises a plurality of second fins, and the plurality of second fins are arranged at intervals along the axial direction of the main body piece.

Preferably, the brushless motor module comprises a rotor, the rotating shaft is disposed at one end of the rotor, at least one end of the rotor is provided with a step portion, and the step portion is provided with a weight.

Preferably, stepped portions are provided at both ends of the rotor, and the stepped portions are provided with the weight members.

Preferably, the weight member is a copper weight member, and the weight member is provided with at least one cutting portion corresponding to the dynamic balance.

Preferably, the height from the combined part to the first section at the end of the main body piece is greater than or equal to the height of the opening of the air outlet channel communicated with the second accommodating space.

The technical features of the present invention will be described in detail below with reference to specific embodiments and drawings so that those skilled in the art can easily understand the objects, technical features, and advantages of the present invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings.

Fig. 1 is an exploded view of an embodiment of a blower device according to the present invention.

Fig. 2 is a schematic combination diagram of an embodiment of a blower device according to the present invention.

Fig. 3 is a schematic cross-sectional view of an embodiment of a blower device according to the present invention.

Fig. 4 is a first cross-sectional view and a partially enlarged schematic view of an embodiment of a blower device according to the present invention.

Description of the symbols:

100: a blower device; 10: a main body member; 101: a first section; 102: a second section; 11: a first accommodating space; 12: a combining section; 13: a heat dissipation and noise reduction part; 131: a first fin; 14: a heat dissipating section; 141: a second fin; 20: an air duct housing; 201: a lower housing; 202: an upper housing; 203: a second accommodating space; 204: an annular groove; 21: an air outlet channel; 22: an air inlet; 30: a fan unit; 40: a brushless motor module; 401: a rotating shaft; 41: a rotor; 411: a step portion; 42: a counterweight; and 421: a cutting part.

Detailed Description

To facilitate understanding of the technical features, contents and advantages of the present invention and the efficacy achieved thereby, the following will be matched with the drawings and embodiments to further explain the present invention in detail, wherein the drawings used are only for the purpose of illustration and the auxiliary specification, not necessarily for the true proportion and the precise configuration after the implementation of the present invention, so the present invention should not be interpreted and limited with respect to the proportion and the configuration relationship of the attached drawings.

It will be understood that when an element is referred to as being "connected to," "disposed on," or "mounted on" another element, it can be directly connected to or disposed on the other element or intervening elements may also be present. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or order thereof or a directional relationship thereof.

The blower device of the present invention will be described below with reference to the accompanying drawings, and for the sake of understanding, the same components in the following embodiments are illustrated with the same reference numerals.

Please refer to fig. 1 to 4. The utility model discloses a blower device 100, it contains main part 10, wind channel casing 20, fan unit 30 and brushless motor module 40.

The main body 10 may be made of aluminum, and the first accommodating space 11 is formed inside the main body 10. Further, the body member 10 may be generally 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, and the combination portion 12 may be a groove structure, a step-shaped structure, or the like, or may even be a locking structure, while in the present embodiment, the combination portion 12 is exemplified by the step-shaped structure.

The air duct casing 20 is made of plastic material and has a substantially disc-shaped structure, and the air duct casing 20 is disposed on the assembly portion 12 and covers the first section 101 and the heat dissipation and noise reduction portion 13 on the first 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 case 201 is disposed on the assembly portion 12, for example, one side of the lower case 201 is fixed to the assembly portion 12 by a tight fit, and the upper case 202 is disposed on the other side of the lower case 201 by an ultrasonic fusion or a thermal fusion. Incidentally, a sealing ring (or gasket) may be disposed between the lower housing 201 and the combining portion 12 to increase the air tightness.

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

The fan unit 30 is disposed in the second accommodating space 203. The fan unit 30 may be a centrifugal fan known to those skilled in the art, and will not be described herein.

The brushless motor module 40 is a brushless motor known to those skilled in the art, the brushless motor module 40 is disposed in the first accommodating space 11, and the rotating shaft 401 of the brushless motor module 40 penetrates (penetrates through the closed end of the cylindrical structure) through the first accommodating space 11 to the second accommodating space 203 and is connected to the fan unit 30.

Please refer to fig. 3 and 4. It should be noted that the combining portion 12 is located between two ends of the main body 10, such as approximately at the middle section, so that the combining portion 12 divides the outer surface of the main body 10 into a first section 101 and a second section 102; the first section 101 is provided with a heat dissipation and noise reduction portion 13. The heat dissipating and noise reducing 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 is D1, and the length of the first section 101 is D2, and D1/D2 may be between 1/14 and 1/6, preferably between 1/11 and 1/9. If the distance between the first fins 131 is too large, the flow guiding effect may not be optimal, and if the distance between the first fins 131 is too small, the flow guiding effect may not be optimal, or even the opposite effect may occur.

In addition, the width of each first fin 131 is D3, and D3/D2 may be between 1/19 and 1/10, and preferably between 1/16 and 1/14. If the width of the first fins 131 is too large, the flow guiding effect may not be optimal, and if the width of the first fins 131 is too small, the flow guiding effect may not be optimal, or even the opposite effect may occur.

The utility model discloses a blower device 100, its predetermined configuration through above-mentioned heat dissipation and noise reduction portion 13 to when fan unit 30 changes gaseous flow direction and velocity of flow, utilize first fin 131 to form the water conservancy diversion to the gas in the wind channel casing 20, and make gaseous flow more stable, and then reach the purpose of noise reduction. In addition, the first fins 131 increase the surface area of the main body 10, and the brushless motor module 40 is disposed in the main body 10 and contacts with the main body 10, so that the first fins 131 can achieve a good heat dissipation effect.

Incidentally, the second section 102 may also be provided with a heat dissipating portion 14, the heat dissipating portion 14 includes a plurality of second fins 141, and the plurality of second fins 141 are arranged at intervals along the axial direction of the main body 10, so as to increase the surface area of the main body 10, and the brushless motor module 40 is disposed in the main body 10 and contacts with the main body 10, so that the second fins 141 can achieve a good heat dissipating effect. Although 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 in the embodiment, in practical application, only the first section 101 may be provided with the heat dissipation and noise reduction portion 13 according to practical situations. Therefore, 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 as a limitation.

Please refer to fig. 3. On the other hand, the height from the combination portion 12 to the first section 101 at the end of the main body 10 is greater than or equal to the height of the opening of the air outlet channel 21 communicated by the second accommodating space 203. Therefore, the air 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 should be noted 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 disposed with a step portion 411, and a weight member 42 is disposed on the step portion 411. Preferably, the stepped portions 411 are provided at both ends of the rotor 41, and the weight 42 is provided on each stepped portion 411. The weight member 42 is made of copper material, and the weight member 42 is provided with at least one cutting portion 421 corresponding to the dynamic balance. The blower device 100 of the present invention, which is configured in advance as described above, has a good dynamic balance of the rotor 41 when rotating, and thus has good stability.

The foregoing is only a preferred embodiment of the present invention and is not intended as a limitation thereon. Any modification or equivalent substitution made without departing from the spirit and scope of the present invention shall be included in the claims of the present invention.

Claims

1. A blower device, said blower device comprising:

the main body piece is internally provided with a first accommodating space, the outer surface of the main body piece is provided with a combination part, and the combination part is positioned between two ends of the main body piece so as to divide the outer surface of the main body piece into a first section and a second section, wherein the first section is provided with a heat dissipation and noise reduction part;

the air duct shell is of a disc-shaped structure, is arranged on the combination part and covers the first section, forms a second accommodating space with the main body piece inside, is provided with an air outlet channel in an extending mode along the tangential direction of the disc-shaped structure so as to communicate the second accommodating space with the outside, and is provided with an air inlet in the axial direction;

the fan unit is arranged in the second accommodating space; and

the brushless motor module is arranged in the first accommodating space, and a rotating shaft of the brushless motor module penetrates through the first accommodating space to the second accommodating space and is connected with the fan unit.

2. The blower apparatus of claim 1, wherein the body member is cylindrical in shape, the heat and noise dissipating portion includes a plurality of first fins, and the plurality of first fins are arranged at intervals in an axial direction of the body member.

3. The blower device of claim 2, wherein a distance between the plurality of first fins is D1, and the first section has a length of D2, which satisfies the following condition: 1/14 is not less than D1/D2 is not less than 1/6.

4. The blower device of claim 3, wherein the first fin has a width D3 that satisfies the following condition: 1/19 is not less than D3/D2 is not less than 1/10.

5. The blower apparatus of claim 1, wherein the second section is provided with a heat dissipating portion including a plurality of second fins arranged at intervals in an axial direction of the body member.

6. The blower apparatus of claim 1, wherein the brushless motor module comprises a rotor, the rotating shaft is disposed at one end of the rotor, at least one end of the rotor is provided with a step, and a weight is disposed on the step.

7. The blower apparatus according to claim 6, wherein the stepped portions are provided at both ends of the rotor, and the weight member is provided on each of the stepped portions.

8. The blower device of claim 6 or 7, wherein the weight member is a copper weight member, and the weight member is provided with at least one cut-out portion corresponding to dynamic balance.

9. The blower device according to claim 1, wherein a height of the first section from the combining portion to the end of the main body member is greater than or equal to a height of an opening of the second accommodating space, which is communicated with the air outlet channel.