blower

Abstract

An embodiment of this application provides a blower, comprising: a cabinet having a first inner cavity and a first exhaust port communicating with the first inner cavity; a blower unit disposed in the first inner cavity, the blower unit including a blower main unit and a motor drivenly connected to the blower main unit, the motor having at least one heat dissipation channel suitable for heat dissipation; an exhaust hood having a second inner cavity disposed in the first inner cavity and communicating with the first exhaust port, the exhaust hood having at least one first inlet and at least one second inlet, the at least one first inlet communicating with at least one heat dissipation channel respectively, the second inner cavity communicating with the first inner cavity via the at least one second inlet; and a cooling fan adapted to drive airflow in the first inner cavity into the second inner cavity and drive airflow in the second inner cavity to flow out of the cabinet via the first exhaust port.

Description

Technical Field

[0001] The exemplary embodiments of this application generally relate to the field of blower technology, and particularly to a blower. Background Technology

[0002] Blowers are used to guide gas flow and increase gas pressure. During operation, the blower itself may also require heat dissipation. For example, if the blower unit is deployed in a cabinet, it may need to cool the blower motor and the cabinet's internal cavity. In this case, improving the blower's heat dissipation efficiency becomes a crucial issue. Utility Model Content

[0003] The purpose of this application is to provide a blower that solves or at least partially solves the aforementioned problems and / or other potential problems existing in conventional blowers.

[0004] This application provides a blower, comprising: a cabinet having a first inner cavity and a first exhaust port communicating with the first inner cavity; a blower unit disposed in the first inner cavity, the blower unit including a blower main unit and a motor drivenly connected to the blower main unit, the motor having at least one heat dissipation channel suitable for heat dissipation; an exhaust hood having a second inner cavity disposed in the first inner cavity and communicating with the first exhaust port, the exhaust hood having at least one first inlet and at least one second inlet, the at least one first inlet communicating with at least one heat dissipation channel respectively, the second inner cavity communicating with the first inner cavity via the at least one second inlet; and a cooling fan adapted to drive airflow in the first inner cavity into the second inner cavity and drive airflow in the second inner cavity to flow out of the cabinet via the first exhaust port.

[0005] In some embodiments, a cooling fan is located at one of the second inlets of at least one second inlet.

[0006] In some embodiments, a cooling fan is located at the first exhaust vent.

[0007] In some embodiments, it further includes: an electrical control box having a third inner cavity, the third inner cavity being in communication with the second inner cavity via at least one third inlet of an exhaust hood, such that airflow in the third inner cavity is adapted to be discharged to the outside of the cabinet via the second inner cavity.

[0008] In some embodiments, a first exhaust vent is located on the top surface of the cabinet, and at least one first inlet and at least one second inlet are located on the bottom surface of the exhaust hood.

[0009] In some embodiments, the motor includes multiple magnetic bearings, and heat dissipation channels correspond one-to-one with the magnetic bearings, with each heat dissipation channel being adapted to dissipate heat from the corresponding magnetic bearing.

[0010] In some embodiments, each heat dissipation channel includes at least a portion arranged circumferentially along the respective magnetic levitation bearing.

[0011] In some embodiments, the system further includes at least one cooling fan connected to at least one heat dissipation channel, each cooling fan being adapted to introduce external airflow into the corresponding heat dissipation channel.

[0012] In some embodiments, the cabinet is provided with at least one first air inlet corresponding to at least one cooling fan, the air inlet end of each cooling fan is connected to the corresponding first air inlet through a corresponding air inlet pipe, the air outlet end of each cooling fan is connected to the air inlet end of the corresponding heat dissipation channel, and / or the air outlet end of each heat dissipation channel is connected to the corresponding first inlet through a corresponding exhaust pipe.

[0013] In some embodiments, the cabinet is provided with at least one second air inlet, and the first inner cavity communicates with the outside via at least one second air inlet.

[0014] The blower in this embodiment of the application has an exhaust hood at the first exhaust port. The exhaust hood is connected to both the heat dissipation channel and the first inner cavity of the cabinet. A cooling fan guides the airflow in the exhaust hood to the outside of the cabinet. In this way, on the one hand, while the cooling fan dissipates heat from inside the cabinet, it also promotes airflow within the heat dissipation channel, which is beneficial for improving the heat dissipation effect of the heat dissipation channel on the motor. On the other hand, it can concentrate the heat dissipation airflow inside the cabinet and inside the motor for discharge, which is beneficial for improving the heat dissipation efficiency of the blower. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0016] Figures 1 to 3 Perspective views of partial structures of a blower according to some embodiments of this application are shown respectively;

[0017] Figure 4 A perspective view of an exhaust shroud and a cooling fan according to some embodiments of this application is shown; and

[0018] Figure 5 A perspective view of a portion of the structure of a blower unit according to some embodiments of this application is shown.

[0019] Explanation of reference numerals in the attached figures:

[0020] 100 - Server rack; 101 - First inner cavity; 102 - First air inlet; 103 - Second air inlet; 104 - First exhaust outlet;

[0021] 200 - Blower unit; 210 - Blower main unit; 220 - Motor; 221 - Heat dissipation channel; 222 - First heat dissipation channel; 223 - Second heat dissipation channel; 231 - First air inlet duct; 232 - Second air inlet duct; 233 - First exhaust duct; 234 - Second exhaust duct; 241 - Cooling fan; 242 - First cooling fan; 243 - Second cooling fan; 251 - First filter; 252 - Second filter; 253 - Third filter; 261 - Air outlet duct; 262 - Air filter chamber;

[0022] 300 - Exhaust hood; 301 - Second inner cavity; 302 - First inlet; 303 - Second inlet; 304 - Cooling fan; and

[0023] 400 - Electrical control box; 401 - Third air inlet; 402 - Second air outlet. Detailed Implementation

[0024] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0025] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0026] This application provides a blower. Figures 1 to 3 Perspective views of partial structures of a blower according to some embodiments of this application are shown. Figure 4 A perspective view of an exhaust shroud and a cooling fan according to some embodiments of this application is shown. To reveal the blower unit and the exhaust shroud, in... Figure 1 The electrical control box and part of the side wall are hidden in the middle. Figure 2 and Figure 3 Part of the sidewalls are obscured. See also Figures 1 to 4 As shown, the blower in this embodiment of the application includes a cabinet 100, a blower unit 200, an exhaust hood 300, and a cooling fan 304.

[0027] The cabinet 100 has a first inner cavity 101 and a first exhaust vent 104 communicating with the first inner cavity 101. In some examples, combined with Figures 1 to 3 As shown, the first exhaust vent 104 can be located on the top wall of the cabinet 100. As an example, a mesh structure or grille structure can be provided at the first exhaust vent 104 to prevent larger debris from entering the first inner cavity 101. It is understood that the first exhaust vent 104 is not limited to being deployed on the top wall of the cabinet 100, but can also be deployed on, for example, the side wall of the cabinet 100. The embodiments of this application do not limit this.

[0028] A blower unit 200 is disposed within a first inner cavity 101. The blower unit 200 includes a blower main unit 210 and a motor 220 drivenly connected to the blower main unit 210. In some examples, the air inlet of the blower main unit 210 may communicate with the air outlet of an air filter chamber 262, which may be configured to filter gas drawn from outside the cabinet 100. As an example, the cabinet 100 may have an air inlet at which the air filter chamber 262 may be located. In some examples, the air outlet of the blower main unit 210 may communicate with the air inlet of an exhaust duct 261, the air outlet of which may extend outside the cabinet 100.

[0029] The motor 220 has at least one heat dissipation channel 221, through which the motor 220 can dissipate heat. An exhaust hood 300 is disposed in the first inner cavity 101 and covers the first exhaust port 104, so that the first exhaust port 104 communicates with the second inner cavity 301 of the exhaust hood 300. The exhaust hood 300 has at least one first inlet 302 and at least one second inlet 303. The at least one first inlet 302 communicates with at least one heat dissipation channel 221, and the second inner cavity 301 communicates with the first inner cavity 101 via the at least one second inlet 303. A cooling fan 304 can be directly or indirectly connected to the exhaust hood 300. The cooling fan 304 is adapted to drive the airflow in the first inner cavity 101 into the second inner cavity 301, and drive the airflow in the second inner cavity 301 to flow out of the cabinet 100 through the first exhaust port 104.

[0030] The blower in this embodiment of the application has an exhaust hood 300 installed at the first exhaust port 104. The exhaust hood 300 is connected to the heat dissipation channel 221 and the first inner cavity 101 of the cabinet 100. The cooling fan 304 can guide the airflow in the exhaust hood 300 to flow out of the cabinet 100. In this way, on the one hand, while the cooling fan 304 dissipates heat from the inside of the cabinet 100, it can also promote the airflow in the heat dissipation channel 221, which is beneficial to improving the heat dissipation effect of the heat dissipation channel 221 on the motor 220. On the other hand, it can concentrate the heat dissipation airflow inside the cabinet 100 and the heat dissipation airflow inside the motor 220 for discharge, which is beneficial to improving the heat dissipation efficiency of the blower.

[0031] In some embodiments, the airflow of at least one heat dissipation channel 221 can be discharged into the first inner cavity 101, and then drawn by the cooling fan 304 into the at least one first inlet 302, so that the at least one first inlet 302 is respectively connected to at least one heat dissipation channel 221. In some embodiments, combined with Figure 1 and Figure 4 As shown, the airflow of at least one heat dissipation channel 221 is connected to the at least one first inlet 302 through exhaust pipe 233 or 234, and the heat dissipation inside the motor will not affect other components in the first cavity 101.

[0032] In some embodiments, combined with Figure 1 and Figure 4 As shown, at least one first inlet 302 and at least one second inlet 303 are provided on the bottom surface of the exhaust hood 300. In this way, the cooling airflow from the motor 220 and the cooling airflow inside the cabinet 100 flows into the exhaust hood 300 from bottom to top, and without changing the airflow direction, it can continue to flow from bottom to top and then flow out of the cabinet 100 through the first exhaust port 104, which is conducive to the discharge of cooling airflow.

[0033] In some examples, such as Figure 4 As shown, the first exhaust vent 104 can be located on the top wall of the cabinet 100, and the exhaust hood 300 can be installed above the first exhaust vent 104 from bottom to top. At least one first inlet 302 is located at one end near the bottom surface of the exhaust hood 300, and at least one second inlet 303 is located at the other end near the bottom surface of the exhaust hood 300. As an example, the exhaust hood 300 can be a rectangular shell structure with an open top, or it can have a grid on the top, with the radiated gas exiting from the top of the exhaust hood 300 or being discharged into a cooling device. Of course, the exhaust hood 300 can also be constructed in any other suitable shape, and the embodiments of this application do not limit this. It should also be noted that, in order to present the internal structure of the exhaust hood 300, in... Figure 1 and Figure 4 Part of the sidewall of the exhaust hood 300 is concealed. In some practical applications, it can be blocked by a plate structure or other structures within the cabinet 100. Figure 1 and Figure 4 The side opening of the central exhaust hood 300.

[0034] In some embodiments, continue to combine Figure 1 and Figure 4As shown, a cooling fan 304 is located at one of the at least one second inlet 303. The cooling fan 304 drives airflow from the first inner cavity 101 into the second inner cavity 301, thereby driving the airflow in the second inner cavity 301 to flow out of the cabinet 100 via the first exhaust port 104. In this case, if the airflow velocity in the heat dissipation channel 221 is relatively low, the cooling fan 304, while drawing airflow from the cabinet 100, also has a secondary suction effect on the airflow in the heat dissipation channel 221, which helps to improve the heat dissipation effect of the heat dissipation channel 221.

[0035] As an example, combined Figure 4 As shown, a second inlet 303 can be deployed on the bottom surface of the exhaust hood 300, and a cooling fan 304 can be deployed below the second inlet 303. In some embodiments, the cooling fan 304 can be located at the first exhaust vent 104, and the cooling fan 304 can drive the airflow in the second inner cavity 301 to flow out of the rack 100 through the first exhaust vent 104. That is, the cooling fan 304 can also be used to draw the gas in the second inner cavity 301 to the outside of the rack 100. In this way, not only can the airflow in the rack 100 be drawn, but the airflow in the heat dissipation channel 221 can also be drawn, which can take into account the heat dissipation effect of the motor 220 and the inside of the rack 100. As an example, if the first exhaust vent 104 is deployed on the top surface of the rack 100, the cooling fan 304 can be deployed in the second inner cavity 301, and the cooling fan 304 can be located below the first exhaust vent 104.

[0036] The at least one heat dissipation channel 221 can dissipate heat from any suitable structure inside the motor 220. In some embodiments, the motor 220 may include multiple magnetic bearings, and the heat dissipation channels 221 may correspond one-to-one with the magnetic bearings. Each heat dissipation channel 221 can dissipate heat from the corresponding magnetic bearing. In some examples, each heat dissipation channel 221 may be deployed close to the corresponding magnetic bearing; for example, the magnetic bearing may be wholly or partially exposed within the corresponding heat dissipation channel 221. In this way, the magnetic bearings of the motor 220 can be cooled, thereby ensuring the stable operation of the motor 220.

[0037] The motor 220 may include a first magnetic levitation bearing and a second magnetic levitation bearing, which are respectively located at both ends of the motor rotor shaft. As an example, combined with... Figure 5 As shown, the at least one heat dissipation channel 221 may include a first heat dissipation channel 222 corresponding to the first magnetic levitation bearing and a second heat dissipation channel 223 corresponding to the second magnetic levitation bearing. Thus, the first heat dissipation channel 222 can dissipate heat from the first magnetic levitation bearing, and the second heat dissipation channel 223 can dissipate heat from the second magnetic levitation bearing.

[0038] In some embodiments, each heat dissipation channel 221 includes at least a portion arranged circumferentially along the corresponding magnetic levitation bearing. As an example, the heat dissipation channel 221 may be arranged in an annular channel segment surrounding the magnetic levitation bearing. As another example, the heat dissipation channel 221 may include a semi-circular channel segment arranged circumferentially along the magnetic levitation bearing. This improves the heat dissipation effect of the heat dissipation channel 221 on the magnetic levitation bearing.

[0039] In some embodiments, the blower may further include at least one cooling fan 241 connected to at least one heat dissipation channel 221. Each cooling fan 241 is adapted to introduce external airflow into the corresponding heat dissipation channel. As an example, combined with Figure 1 and Figure 2 As shown, the motor 220 may include a first heat dissipation channel 222 and a second heat dissipation channel 223. The at least one cooling fan 241 may include a first cooling fan 242 connected to the first heat dissipation channel 222 and a second cooling fan 243 connected to the second heat dissipation channel 223. External airflow can be introduced into the first heat dissipation channel 222 by the first cooling fan 242 to dissipate heat at least on the first magnetic levitation bearing. External airflow can be introduced into the second heat dissipation channel 223 by the second cooling fan 243 to dissipate heat at least on the second magnetic levitation bearing.

[0040] In some embodiments, the cabinet 100 is provided with at least one first air inlet 102. The air inlet end of each cooling fan 241 is connected to the corresponding first air inlet 102 through a corresponding air inlet pipe, and the air outlet end of each cooling fan 241 is connected to the air inlet end of a corresponding heat dissipation channel 221. The air outlet end of each heat dissipation channel 221 is connected to the corresponding first inlet through a corresponding exhaust pipe. In this way, the cooling fan 241 can introduce airflow from outside the cabinet 100 into the corresponding heat dissipation channel 221 through the air inlet pipe and the first air inlet 102. The airflow flowing out of the heat dissipation channel 221 can flow into the second inner cavity 301 of the exhaust hood 300 through the exhaust pipe.

[0041] As an example, continue to combine Figure 1 and Figure 2As shown, two first air inlets 102 can be provided on the side wall of the cabinet 100, and two first inlets 302 can be provided on the exhaust hood 300. The air inlet of the first cooling fan 242 can be connected to one of the first air inlets 102 through the first air inlet duct 231, and the air outlet of the first cooling fan 242 can be connected to the air inlet of the first heat dissipation channel 222. The air outlet of the first heat dissipation channel 222 can be connected to one of the first inlets 302 through the first exhaust duct 233. The air inlet of the second cooling fan 243 can be connected to the first air inlet 102 through the second air inlet duct 232, and the air outlet of the second cooling fan 243 can be connected to the air inlet of the second heat dissipation channel 223. The air outlet of the second heat dissipation channel 223 can be connected to another first inlet 302 through the second exhaust duct 234.

[0042] Furthermore, continue to combine Figure 1 and Figure 2 As shown, the blower may further include a first filter 251 and a second filter 252. The first filter 251 can be deployed at a first air inlet 102 and connected to the air inlet end of a first air inlet duct 231. The second filter 252 can be deployed at another first air inlet 102 and connected to the air inlet end of another first air inlet duct 231. This improves the cleanliness of the air entering the heat dissipation channel 221.

[0043] In some embodiments, the rack 100 is provided with at least one second air inlet 103, and the first inner cavity 101 communicates with the outside via the at least one second air inlet 103. Thus, cooling airflow can flow into the first inner cavity 101 through the second air inlet 103 and exchange heat with a heat source in the first inner cavity 101. The heated cooling airflow flows into the second inner cavity 301 through the second inlet 303. Finally, the cooling airflow flows out of the rack 100 through the first exhaust vent 104.

[0044] As an example, combined Figure 2 As shown, a second air inlet 103 can be deployed on the side wall of the cabinet 100. A third filter 253 can be deployed at the second air inlet 103. In this way, the third filter 253 can be used to filter the heat dissipation airflow flowing into the first inner cavity 101, thereby improving the cleanliness of the airflow flowing into the first inner cavity 101.

[0045] In some embodiments, combined with Figure 2 and Figure 3As shown, the blower may also include an electrical control box 400. The electrical control box 400 has a third inner cavity and a third air inlet 401 and a second air outlet 402 communicating with the third inner cavity. In this way, airflow can flow into the electrical control box 400 through the third air inlet 401, exchange heat with the heat source inside the electrical control box 400, and then flow out of the electrical control box 400 through the second air outlet 402, so as to achieve the purpose of cooling down the heat source inside the electrical control box 400.

[0046] In some examples, the electrical control box 400 may also include at least one third cooling fan (not shown in the figure), which may be configured to drive airflow into the third inner cavity or drive airflow out of the third inner cavity via the second exhaust port 402. As an example, in conjunction with... Figure 2 and Figure 3 As shown, two third air inlets 401 can be deployed on the two cabinet doors of the electrical control box 400, and a third cooling fan can be deployed at each air inlet. Two second exhaust vents 402 can be deployed on the top wall of the electrical control box 400, and each second exhaust vent 402 can be provided with a mesh structure.

[0047] In some embodiments, if the cooling fan 304 is deployed at the first exhaust vent 104, the exhaust hood 300 may include at least one third inlet communicating with the second inner cavity 301.

[0048] As an example, a third inlet can be provided on the side wall of the exhaust hood 300 near the electrical control box 400, and a second exhaust vent 402 can be provided on the side wall of the electrical control box 400 near the exhaust hood 300. The second exhaust vent 402 can be opposite to and connected to the third inlet. By eliminating the two second exhaust vents 402 on the top wall of the electrical control box 400, the cooling airflow in the electrical control box 400 flows into the exhaust hood 300 and is then uniformly discharged outside the cabinet 100 via the first exhaust vent 104. In this way, the cooling fan 304 can promote the airflow discharge from the electrical control box 400, which is beneficial to improving the heat dissipation effect of the electrical control box 400.

[0049] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A blower, characterized in that, include: The server rack has a first inner cavity and a first exhaust vent communicating with the first inner cavity; A blower unit is disposed in the first inner cavity. The blower unit includes a blower main unit and a motor that is drivenly connected to the blower main unit. The motor is provided with at least one heat dissipation channel suitable for heat dissipation. An exhaust hood has a second inner cavity, the exhaust hood is disposed in the first inner cavity, and the second inner cavity is connected to the first exhaust port. The exhaust hood has at least one first inlet and at least one second inlet, the at least one first inlet is connected to the at least one heat dissipation channel, and the second inner cavity is connected to the first inner cavity via the at least one second inlet. as well as A cooling fan is adapted to drive the airflow in the first inner cavity into the second inner cavity, and to drive the airflow in the second inner cavity out of the cabinet through the first exhaust port.

2. The blower according to claim 1, characterized in that, The cooling fan is located at one of the at least one second inlet.

3. The blower according to claim 1, characterized in that, The cooling fan is located at the first exhaust vent.

4. The blower according to claim 3, characterized in that, Also includes: The electrical control box has a third inner cavity that communicates with the second inner cavity via at least one third inlet of the exhaust hood, such that airflow in the third inner cavity is adapted to be discharged to the outside of the cabinet via the second inner cavity.

5. The blower according to claim 1, characterized in that, The first exhaust vent is located on the top surface of the cabinet, and the at least one first inlet and the at least one second inlet are located on the bottom surface of the exhaust hood.

6. The blower according to claim 1, characterized in that, The motor includes multiple magnetic levitation bearings, and the heat dissipation channels correspond one-to-one with the magnetic levitation bearings. Each heat dissipation channel is suitable for dissipating heat from the corresponding magnetic levitation bearing.

7. The blower according to claim 6, characterized in that, Each heat dissipation channel includes at least a portion arranged circumferentially along the corresponding magnetic levitation bearing.

8. The blower according to any one of claims 1-6, characterized in that, It also includes at least one cooling fan connected to the at least one heat dissipation channel, each cooling fan being adapted to introduce external airflow into the corresponding heat dissipation channel.

9. The blower according to claim 8, characterized in that, The cabinet is provided with at least one first air inlet corresponding to the at least one cooling fan. The air inlet of each cooling fan is connected to the corresponding first air inlet through a corresponding air inlet pipe, and the air outlet of each cooling fan is connected to the air inlet of the corresponding heat dissipation channel, and / or The exhaust end of each heat dissipation channel is connected to the corresponding first inlet through a corresponding exhaust duct.

10. The blower according to claim 1, characterized in that, The cabinet is provided with at least one second air inlet, and the first inner cavity is connected to the outside through the at least one second air inlet.

Images