Full-air-cooling magnetic suspension blower cabinet body

Abstract

The utility model provides a full-air-cooling magnetic suspension blower cabinet, which belongs to the technical field of blowers and comprises a cabinet body, a casing, a cooling fan, an annular channel and an air guide pipe. According to the full-air-cooling magnetic suspension air blower cabinet body, the heat dissipation fan sucks air into the inner cavity of the machine shell, the air flows in the machine shell from top to bottom under the thrust action of the heat dissipation fan, so that heat dissipation is carried out on components in the machine shell, and then the air passes through the annular channel and the air guide pipe in sequence and then flows into the inner cavity of the machine shell. And finally, the air is discharged out of the cabinet body through the flow collecting cover. According to the full-air-cooling magnetic suspension air blower cabinet body, components in a secondary magnetic suspension air blower can be well cooled, and therefore normal work of the magnetic suspension air blower is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of blowers, and more specifically, relates to a fully air-cooled magnetic levitation blower cabinet body. Background Art

[0002] Compared with traditional blowers, magnetic levitation blowers can save more than 30% of energy. A magnetic levitation blower includes a cabinet body, electrical components, a casing, a volute, an impeller, and components. The electrical components and the casing are both located inside the cabinet body, and the components are located inside the casing. The components include magnetic bearings and stators. The hottest part is the stator, and the temperature can reach about 180°C without installing a heat dissipation device, which is already close to the H-class insulation level of the stator. Currently, the common heat dissipation methods are air cooling or water cooling. Air cooling is divided into external cooling fans or coaxial cooling fans; water cooling is to wind water pipes outside the casing, and the water pipes are externally connected to circulating cooling water. Among them, air cooling has low cost, moderate effect, and high safety; water cooling has good effect, high cost, and poor safety; however, the existing heat dissipation methods have poor heat dissipation effect on the components inside the blower, and component over-temperature alarms often occur, thus affecting the normal operation of the blower. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a fully air-cooled magnetic levitation blower cabinet body, aiming to solve the problem of poor heat dissipation effect of the existing blower on its internal components.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: providing a fully air-cooled magnetic levitation blower cabinet body, including: a cabinet body, with electrical components installed inside the cabinet body, a collector installed on the top of the cabinet body, and the air outlet of the collector communicating with the outside;

[0005] A casing, vertically and fixedly installed inside the cabinet body, a volute installed on the top of the casing, and an impeller corresponding to the volute installed inside the casing;

[0006] A cooling fan, fixedly installed on the outer side wall of the casing and close to the top of the casing, the cooling fan being located below the volute, and the air outlet of the cooling fan communicating with the inner cavity of the casing;

[0007] An annular channel, sleeved and fixed on the outer side of the casing and close to the bottom of the casing, the annular channel communicating with the inner cavity of the casing; and

[0008] An air duct, respectively connecting the annular channel and the collector.

[0009] In a possible implementation, a vertical partition is installed inside the cabinet body. The vertical partition divides the inner cavity of the cabinet body into a first cavity and a second cavity. The electrical components and the casing are respectively located in the first cavity and the second cavity. A first air inlet communicating with the first cavity is provided at the bottom of the front side of the cabinet body, and a ventilation opening is provided at the top of the vertical partition.

[0010] In a possible implementation, a flow guide cover is installed at the top of the vertical partition. The flow guide cover is located in the first cavity and corresponds to the ventilation opening, and the air inlet of the flow guide cover faces downward.

[0011] In a possible implementation, a horizontal partition is installed in the second cavity. The horizontal partition divides the second cavity into an upper cavity and a lower cavity. The cooling fan is located in the upper cavity. A current collecting hole for the casing to pass through is provided on the horizontal partition. The inner diameter of the current collecting hole is larger than the outer contour of the casing. A second air inlet communicating with the lower cavity is provided on the side door of the cabinet body.

[0012] In a possible implementation, a reactor is installed on the horizontal partition. The reactor is located in the upper cavity, and a strip-shaped air hole corresponding to the reactor is provided on the horizontal partition.

[0013] In a possible implementation, a wire passing hole is provided on the horizontal partition.

[0014] In a possible implementation, a pipe hole matching the air duct is provided on the horizontal partition.

[0015] In a possible implementation, an air outlet pipe is installed at the rear side of the cabinet body, and the air outlet of the volute is communicated with the air outlet pipe.

[0016] In a possible implementation, the horizontal partition is assembled by a first partition and a second partition.

[0017] In a possible implementation, connection flanges are provided at the joints of the first partition and the second partition, and the two connection flanges are connected by screws.

[0018] The solution shown in the embodiments of this application, compared with the prior art, for a fully air-cooled magnetic levitation blower cabinet of the present utility model, the cooling fan sucks air into the inner cavity of the casing. Under the thrust of the cooling fan, the air flows from top to bottom inside the casing, thereby realizing the heat dissipation of the components inside the casing. Then it passes through the annular channel and the air duct in sequence, and finally is discharged to the outside of the cabinet body through the air collecting cover. The fully air-cooled magnetic levitation blower cabinet of this application can dissipate heat from the components inside the magnetic levitation blower well, thus ensuring the normal operation of the magnetic levitation blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the prior art description. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic three-dimensional structure of a fully air-cooled magnetic levitation blower cabinet provided by an embodiment of the present utility model Figure 1 ;

[0021] Figure 2 Schematic three-dimensional structure of a fully air-cooled magnetic levitation blower cabinet provided by an embodiment of the present utility model Figure 2 ;

[0022] Figure 3 Schematic three-dimensional structure of a fully air-cooled magnetic levitation blower cabinet (with the cabinet door hidden) provided by an embodiment of the present utility model Figure 3 ;

[0023] Figure 4 Schematic three-dimensional structure diagram of the side door provided by an embodiment of the present utility model;

[0024] Figure 5 Schematic three-dimensional structure of the casing provided by an embodiment of the present utility model Figure 1 ;

[0025] Figure 6 Schematic three-dimensional structure of the casing provided by an embodiment of the present utility model Figure 2 ;

[0026] Figure 7 Schematic three-dimensional structure diagram of the horizontal partition provided by an embodiment of the present utility model.

[0027] In the figure: 1. Cabinet body; 101. Housing; 102. Cooling fan; 103. Annular channel; 104. Air duct; 105. Flow collector; 106. Electrical components; 107. Volute; 108. Impeller; 109. Vertical partition; 110. First cavity; 111. First air inlet; 112. Vent; 113. Flow deflector; 114. Horizontal partition; 115. Upper cavity; 116. Lower cavity; 117. Flow collecting hole; 118. Side door; 119. Second air inlet; 120. Reactor; 121. Strip-shaped air hole; 122. Wire passing hole; 123. Pipe hole; 124. Air outlet duct; 125. First partition; 126. Second partition; 127. Connecting flange. Detailed implementation mode

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Please refer to Figures 1 to 3 , Figure 5 and Figure 6 , and a full-air-cooled magnetic levitation blower cabinet provided by the present utility model will be described. The full-air-cooled magnetic levitation blower cabinet includes: cabinet body 1, housing 101, cooling fan 102, annular channel 103 and air duct 104. Electrical components 106 are installed inside the cabinet body 1, and a flow collector 105 is installed on the top of the cabinet body 1, and the air outlet of the flow collector 105 is communicated with the outside; the housing 101 is fixedly installed inside the cabinet body 1 in the vertical direction, a volute 107 is installed on the top of the housing 101, and an impeller 108 corresponding to the volute 107 is installed inside the housing 101; the cooling fan 102 is fixedly installed on the outer side wall of the housing 101 and close to the top of the housing 101, the cooling fan 102 is located below the volute 107, and the air outlet of the cooling fan 102 is communicated with the inner cavity of the housing 101; the annular channel 103 is sleeved and fixed on the outside of the housing 101 and close to the bottom of the housing 101, and the annular channel 103 is communicated with the inner cavity of the housing 101; the air duct 104 is respectively connected to the annular channel 103 and the flow collector 105.

[0030] A fully air-cooled magnetic levitation blower cabinet provided in this embodiment, compared with the prior art, the cooling fan 102 sucks air into the inner cavity of the housing 101. Under the thrust of the cooling fan 102, the air flows downward in the housing 101 from top to bottom, thereby realizing heat dissipation for the components inside the housing 101. Then it passes through the annular channel 103 and the air duct 104 in sequence, and finally is discharged outside the cabinet body 1 through the air collector 105. The fully air-cooled magnetic levitation blower cabinet of this application can dissipate heat from the components inside the magnetic levitation blower well, thus ensuring the normal operation of the magnetic levitation blower.

[0031] In some embodiments, please refer to Figure 3 , a vertical partition 109 is installed in the cabinet body 1. The vertical partition 109 divides the inner cavity of the cabinet body 1 into a first cavity 110 and a second cavity. The electrical component 106 and the housing 101 are respectively located in the first cavity 110 and the second cavity. A first air inlet 111 communicating with the first cavity 110 is opened at the bottom of the front side of the cabinet body 1, and a ventilation opening 112 is opened at the top of the vertical partition 109. In this embodiment, the vertical partition 109 divides the inner cavity of the cabinet body 1 into two independent first cavity 110 and second cavity. The first cavity 110 is close to the front side of the cabinet body 1, and the second cavity is close to the rear side of the cabinet body 1. The electrical component 106 is located in the first cavity 110, and the housing 101 is located in the second cavity. The outside air enters the first cavity 110 through the first air inlet 111 opened at the bottom of the front side of the cabinet body 1 under the action of the impeller 108. The air flows upward in the first cavity 110 to dissipate heat from the electrical component 106 located in the first cavity 110, then passes through the ventilation opening 112 at the top of the vertical partition 109 to reach the impeller 108, and finally is discharged outside the cabinet body 1 through the volute 107 under the action of the impeller 108. The above content is the heat dissipation process of the electrical component 106 in the cabinet body 1. Since a seal is installed below the impeller 108, the air entering the impeller 108 can only be discharged through the volute 107 and will not enter the cavity of the housing 101 below the impeller 108, so it will not affect the heat dissipation of the components inside the housing 101.

[0032] In some embodiments, please refer to Figure 3 , a flow guide cover 113 is installed at the top of the vertical partition 109. The flow guide cover 113 is located in the first cavity 110 and corresponds to the ventilation opening 112, and the air inlet of the flow guide cover 113 faces downward. In this embodiment, the flow guide cover 113 is fixedly installed on the side of the vertical partition 109 facing the first cavity 110. The air inlet of the flow guide cover 113 faces, and the air outlet of the flow guide cover 113 corresponds to the ventilation opening 112. The air in the first cavity 110 moves upward and converges into the flow guide cover 113, and then enters the second cavity through the ventilation opening 112.

[0033] In some embodiments, referring to Figure 3 、 Figure 4 and Figure 7 , a horizontal partition 114 is installed in the second cavity. The horizontal partition 114 divides the second cavity into an upper cavity 115 and a lower cavity 116. The heat dissipation fan 102 is located in the upper cavity 115. A current collecting hole 117 for the housing 101 to pass through is formed in the horizontal partition 114. The inner diameter of the current collecting hole 117 is larger than the outer contour of the housing 101. A second air inlet 119 communicating with the lower cavity 116 is formed in the side door 118 of the cabinet body 1. In this embodiment, the horizontal partition 114 is located in the second cavity and is perpendicular to the vertical partition 109. The horizontal partition 114 divides the second cavity into an upper cavity 115 and a lower cavity 116. The housing 101 passes through the current collecting hole 117 in the vertical direction. The heat dissipation fan 102 is located in the upper cavity 115, and the annular channel 103 is located in the lower cavity 116. External air enters the lower cavity 116 through the second air inlet 119. Since the inner diameter of the current collecting hole 117 is larger than the outer contour of the housing 101, the air will enter the upper cavity 115 through the current collecting hole 117. At this time, the air will contact the outer wall of the housing 101, thereby dissipating heat from the housing 101. A part of the air after cooling the outer wall of the housing 101 will enter the impeller 108 and be discharged through the volute 107, and another part of the air will be sucked into the heat dissipation fan 102 and then enter the interior of the housing 101, and finally be discharged through the current collecting cover 105. Therefore, the air dissipates heat from both the inner and outer sides of the housing 101, thereby improving the heat dissipation effect.

[0034] In some embodiments, referring to Figure 3 and Figure 7 , a reactor 120 is installed on the horizontal partition 114. The reactor 120 is located in the upper cavity 115. A strip-shaped air hole 121 corresponding to the reactor 120 is formed in the horizontal partition 114. In this embodiment, the reactor 120 is fixedly installed on the top surface of the horizontal partition 114, and the number of strip-shaped air holes 121 is multiple and corresponds to the installation position of the reactor 120. A part of the air in the lower cavity 116 will cool and dissipate heat from the reactor 120 through the strip-shaped air holes 121.

[0035] In some embodiments, referring to Figure 7 , a wire passing hole 122 is formed in the horizontal partition 114. In this embodiment, by providing the wire passing hole 122 on the horizontal partition 114, it is convenient for the wires between the upper cavity 115 and the lower cavity 116 to pass through.

[0036] In some embodiments, referring to Figure 7, a pipe hole 123 matching the air guide pipe 104 is formed in the horizontal partition plate 114. In this embodiment, the lower end of the air guide pipe 104 is located in the lower cavity 116, and the air guide pipe 104 passes through the pipe hole 123 and is connected upward to the flow collecting hood 105. Since the pipe hole 123 matches the air guide pipe 104, as much air as possible can enter the upper cavity 115 from the collecting holes 117 while ensuring the installation of the air guide pipe 104.

[0037] In some embodiments, please refer to Figure 2 and Figure 3 , an air outlet pipe 124 is installed at the rear side of the cabinet body 1, and the air outlet of the volute 107 is communicated with the air outlet pipe 124. In this embodiment, the air outlet pipe 124 is fixedly installed at the rear side of the cabinet body 1. The air in the volute 107 can be smoothly discharged through the air outlet pipe 124.

[0038] In some embodiments, please refer to Figure 7 , the horizontal partition plate 114 is assembled by a first partition plate 125 and a second partition plate 126. In this embodiment, the splicing surface of the first partition plate 125 and the second partition plate 126 is a plane, and the first partition plate 125 and the second partition plate 126 are symmetrically arranged about the center of the casing 101. The strip-shaped air holes 121, the wire passing holes 122 and the pipe holes 123 can be selectively formed in the first partition plate 125 or the second partition plate 126 according to actual needs. The horizontal partition plate 114 adopts a split structure, which is convenient for disassembly and assembly.

[0039] In some embodiments, please refer to Figure 7 , connecting flanges 127 are provided at the connection parts of the first partition plate 125 and the second partition plate 126, and the two connecting flanges 127 are connected by screws. In this embodiment, the first partition plate 125 and the second partition plate 126 are attached together through the connecting flanges 127 and fixed together by screws.

[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fully air-cooled magnetic suspension blower cabinet, characterized in that: include: A cabinet body, wherein electrical components are installed inside the cabinet body, a current collecting cover is installed on the top of the cabinet body, and an air outlet of the current collecting cover is connected to the outside; A casing is fixedly mounted inside the cabinet body along a vertical direction, a volute is mounted on the top of the casing, and an impeller corresponding to the volute is mounted inside the casing; A heat dissipation fan is fixedly mounted on the outer wall of the casing and close to the top of the casing, the heat dissipation fan is located below the volute, and the air outlet of the heat dissipation fan is connected to the inner cavity of the casing; An annular channel, which is fixedly mounted on the outside of the housing and close to the bottom of the housing, and the annular channel is communicated with the inner cavity of the housing; and The air guide duct is respectively connected to the annular channel and the collecting cover.

2. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 1, characterized in that: A vertical partition is installed in the cabinet body, and the vertical partition divides the inner cavity of the cabinet body into a first cavity and a second cavity. The electrical components and the casing are respectively located in the first cavity and the second cavity. A first air inlet connected to the first cavity is opened at the front bottom of the cabinet body, and a ventilation hole is opened at the top of the vertical partition.

3. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 2, characterized in that: A deflector is installed on the top of the vertical partition, the deflector is located in the first cavity and corresponds to the vent, and the air inlet of the deflector faces downward.

4. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 2, characterized in that: A horizontal partition is installed in the second cavity, and the horizontal partition divides the second cavity into an upper cavity and a lower cavity. The heat dissipation fan is located in the upper cavity. A collecting hole for the casing to pass through is opened on the horizontal partition, and the inner diameter of the collecting hole is larger than the outer contour of the casing. A second air inlet connected to the lower cavity is opened on the side door of the cabinet body.

5. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 4, characterized in that: A reactor is installed on the horizontal partition, and the reactor is located in the upper cavity. Strip-shaped air holes corresponding to the reactor are opened on the horizontal partition.

6. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 4, characterized in that: The horizontal partition is provided with threading holes.

7. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 4, characterized in that: The horizontal partition is provided with a tube hole matching the air guide tube.

8. The fully air-cooled magnetic suspension blower cabinet according to claim 1, characterized in that: An air outlet duct is installed on the rear side of the cabinet body, and the air outlet of the volute is connected to the air outlet duct.

9. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 4, characterized in that: The horizontal partition is assembled from a first partition and a second partition.

10. A fully air-cooled magnetic suspension blower cabinet as claimed in claim 9, characterized in that: A connecting flange is provided at the connection between the first partition plate and the second partition plate, and the two connecting flanges are connected by screws.

Images