CN217010621U - High-efficient centrifugal air compressor of compact - Google Patents
High-efficient centrifugal air compressor of compact Download PDFInfo
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- CN217010621U CN217010621U CN202220854551.4U CN202220854551U CN217010621U CN 217010621 U CN217010621 U CN 217010621U CN 202220854551 U CN202220854551 U CN 202220854551U CN 217010621 U CN217010621 U CN 217010621U
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Abstract
The utility model discloses a compact high-efficiency centrifugal air compressor, which comprises a motor and an air compressor shell, wherein the left side of the air compressor shell is connected with a left end cover, the right side of the air compressor shell is connected with the right part of a motor shell, and the right side of the right part of the motor shell is connected with a right volute; the left output shaft of the motor is connected with a main impeller, the right motor tail end shaft of the motor is connected with an auxiliary impeller, a cooling flow channel is arranged in a gap between the air compressor shell and the left part of the motor shell, the two ends of the cooling flow channel are respectively arranged as a cooling flow channel inlet and a cooling flow channel outlet, the cooling flow channel outlet is communicated with an air outlet on the right volute through an auxiliary pipeline, and the right center of the right volute is connected with a cooling air inlet pipe. The utility model has ingenious conception and compact layout, synchronously provides power for the air compressor and the centrifugal fan by adopting the double-shaft motor, realizes the cooling operation of the motor while the air compressor works, and improves the heat dissipation capacity of the motor and the controller.
Description
Technical Field
The utility model relates to the technical field of air compressors, in particular to a compact efficient centrifugal air compressor.
Background
The working principle of the centrifugal air compressor is that after air enters the centrifugal air compressor, the impeller can rotate rapidly, and the air enters the diffuser along with the impeller to be captured and compressed. Its advantages are saving energy, high air exhaust rate, low failure rate and low cost.
Because the high rotational speed operation needs to be maintained, the motor of the air compressor can generate a large amount of heat, if the heat is not dissipated in time, the motor can be permanently damaged. The existing small centrifugal air compressor has low efficiency, is influenced by the temperature rise of the motor, and can only adopt a natural cooling mode for the motor or carry out forced water cooling by adding cooling liquid; the motor is made small by adopting a natural cooling method, and the energy of the motor is higher than that of the motor which is not made; the adoption of the water cooling form requires the addition of a water cooling circulation device, which increases energy consumption. How to develop a high-efficiency centrifugal air compressor with better heat dissipation capability becomes a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a compact high-efficiency centrifugal air compressor, which is characterized in that cooling air is pumped into a cooling flow channel of a motor shell of the air compressor through integrating the right part of the motor shell, so that the cooling operation of a motor is realized.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model discloses a compact efficient centrifugal air compressor, which comprises a motor for central driving and an air compressor shell for external positioning and supporting, wherein the motor is arranged in the internal center of the air compressor shell, the left side of the air compressor shell is connected with a left end cover, the right side of the air compressor shell is connected with the right part of a motor shell, and the right side of the right part of the motor shell is connected with a right volute; a main impeller is connected to an output shaft on the left side of the motor, an auxiliary impeller is connected to a motor tail end shaft on the right side of the motor, a cooling flow channel is arranged in a gap between the shell of the air compressor and the left part of the shell of the motor, two ends of the cooling flow channel are respectively provided with a cooling flow channel inlet and a cooling flow channel outlet, the cooling flow channel outlet is communicated with an air outlet on the right volute through an auxiliary pipeline, and a cooling air inlet pipe is connected to the right center of the right volute; be connected with on the left surface centre bore of left end cover and be the air compressor machine intake pipe, be connected with the air compressor machine outlet duct on the air compressor machine casing.
Further, the main impeller is located in the left end cover, and the auxiliary impeller is located in the right volute.
Furthermore, the right part of the motor shell, the auxiliary impeller and the right volute form a centrifugal fan, the motor is started to drive the auxiliary impeller to rotate, and cooling air is pumped into the cooling flow channel through the cooling air inlet pipe and the auxiliary pipeline.
Furthermore, the outlet of the air outlet pipe of the air compressor is arranged to be horn-shaped.
Further, the cooling flow channel is spirally arranged and surrounds the outer peripheral surface of the left part of the motor casing.
Compared with the prior art, the utility model has the beneficial technical effects that:
the utility model discloses a compact high-efficiency centrifugal air compressor, which comprises a motor for central driving and an air compressor shell for external positioning support, wherein the motor is arranged in the internal center of the air compressor shell; a main impeller is connected to an output shaft on the left side of the motor, an auxiliary impeller is connected to a motor tail end shaft on the right side of the motor, and a spirally-surrounded cooling flow channel is arranged in a gap between the shell of the air compressor and the left part of the shell of the motor; the cooling runner is specifically processed on the motor shell and forms a closed cooling cavity with the air compressor shell, only an inlet and an outlet of the cooling runner are reserved, and then the inlet of the cooling runner is communicated with an outlet on the right part of the motor shell through an auxiliary pipeline; when the centrifugal air compressor runs, the motor rotates to drive the auxiliary impeller to rotate so as to pump cooling air into the cooling flow channel, and the main body part of the motor of the air compressor is rapidly cooled.
The utility model has ingenious conception and compact layout, synchronously provides power for the air compressor and the centrifugal fan by adopting the double-shaft motor, assists the impeller to rotate and pumps cold air into the cooling flow channel, realizes the cooling operation of the motor and improves the heat dissipation capacity of the motor and the controller; the two ends rotate synchronously, the radial force and the axial force of the air compression end of the air compressor can be balanced, the unbalanced force of the rotor is reduced, the service life of the bearing is prolonged, and therefore the service life of the air compressor is prolonged. The utility model discloses a mainly be applied to on the miniwatt single-stage centrifugal air compressor machine.
Drawings
The utility model is further illustrated in the following description with reference to the drawings.
FIG. 1 is a front view of a compact, high efficiency centrifugal air compressor according to the present invention;
fig. 2 is a right side view of the compact high-efficiency centrifugal air compressor of the present invention;
FIG. 3 is a cross-sectional view of the compact high-efficiency centrifugal air compressor of the present invention;
FIG. 4 is a cross-sectional view of another embodiment of the present invention;
description of reference numerals: 1. a main impeller; 2. an air compressor housing; 3. a motor housing left portion; 4. an auxiliary impeller; 5. a cooling air inlet pipe; 6. an auxiliary pipeline; 7. an inlet of the cooling channel; 8. an outlet of the cooling runner; 9. a motor tail end shaft; 10. the right part of the motor shell; 11. an air inlet pipe of an air compressor; 12. an air outlet pipe of the air compressor; 13. a left end cap; 14. a right volute; 15. a controller harness outlet; 16. a controller flow channel; 17. the controller cavity.
Detailed Description
As shown in fig. 1 to 4, a compact high-efficiency centrifugal air compressor comprises a motor for central driving and an air compressor housing 2 for external positioning and supporting, wherein the motor is installed in the inner center of the air compressor housing 2, the left side of the air compressor housing 2 is connected with a left end cover 13 through a bolt assembly, the right side of the air compressor housing 2 is connected with a motor housing right part 10 through a bolt assembly, and the right side of the motor housing right part 10 is connected with a right volute 14 through a bolt assembly; a main impeller 1 is connected to an output shaft on the left side of the motor, an auxiliary impeller 4 is connected to a motor tail end shaft 9 on the right side of the motor, a cooling flow channel is arranged in a gap between the air compressor shell 2 and the left portion 3 of the motor shell, two ends of the cooling flow channel are respectively provided with a cooling flow channel inlet 7 and a cooling flow channel outlet 8, the cooling flow channel outlet 8 is communicated with an air outlet on the right volute 14 through an auxiliary pipeline 6, and a cooling air inlet pipe 5 is connected to the right center of the right volute 14; be connected with on the left surface centre bore of left end cover 13 and be the air compressor machine intake pipe 11, be connected with air compressor machine outlet duct 12 on the air compressor machine casing 2. Specifically, the cooling flow channel is spirally arranged and surrounds the outer peripheral surface of the left part 3 of the motor shell, and the cooling flow channel is processed on the left part of the motor shell and forms a closed cooling cavity together with the air compressor shell. The outlet of the air outlet pipe 12 of the air compressor is in a horn shape. Specifically, air compressor machine casing 2 and left end cover 13 air compressor machine casing 2 and motor casing right part 10, motor casing right part 10 is provided with sealed cushion with the connection face department of right spiral case 14, guarantees the leakproofness of connection terminal surface.
Specifically, the main impeller 1 is located in the left end cover 13, and the auxiliary impeller 4 is located in the right volute 14.
The right part 10 of the motor shell, the auxiliary impeller 4 and the right volute 14 form a centrifugal fan, the motor is started to drive the auxiliary impeller 4 to rotate, and cooling air is pumped into the cooling flow channel through the cooling air inlet pipe 5 and the auxiliary pipeline 6.
As shown in fig. 4, in another embodiment, the air compressor further comprises a controller, the controller is mounted on the outer circumferential surface of the air compressor casing 2, a controller flow channel 16 and a controller cavity 17 are arranged on the controller, the controller flow channel 16 and the controller cavity 17 are arranged in parallel, the controller flow channel 16 is communicated with the cooling flow channel, and cold air passes through the controller flow channel 16 while cooling the motor, so that synchronous cooling of the controller is realized, and the service life of the controller is prolonged. The controller's wiring harness is positioned through a controller harness outlet 15, the controller harness outlet 15 being mounted on the motor housing right portion 10.
The working process of the utility model is as follows:
firstly, an air compressor part is composed of an air compressor shell 2, a left end cover 13, an air compressor air inlet pipe 11, a main impeller 1 and an air compressor air outlet pipe 12, when the air compressor works, a motor is started to rotate to drive the main impeller 1 to rotate at a high speed to pump air from the air compressor air inlet pipe 11 into the air compressor for compression and then output the air through the air compressor air outlet pipe 12, so that the air compression and output operation is realized;
meanwhile, the right part 10 of the motor shell, the auxiliary impeller 4 and the right volute 14 form a centrifugal fan part, and the auxiliary impeller 4 rotates to pump cold air into a cooling flow channel, so that the cooling operation of the motor is realized; specifically, cold air enters from an opening of a cooling air inlet pipe 5, is provided with power through an auxiliary impeller 4 and is output to an opening on the circumferential side wall of a right volute 14, enters a cooling flow channel through an auxiliary pipeline 6 and a cooling flow channel inlet 7, and is finally output through the cooling flow channel inlet 7, so that the cooling operation of the motor is realized.
According to the utility model, the air compressor and the centrifugal fan are integrated on one motor through the selection of the double-head motor, the structure is compact, the occupied space is small, and the heat dissipation capacity of the motor and the controller is improved due to the design of the cooling flow channel.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (5)
1. A compact high-efficiency centrifugal air compressor, which comprises a motor for central driving and an air compressor shell for external positioning and supporting, wherein the motor is arranged in the inner center of the air compressor shell, and the compact high-efficiency centrifugal air compressor is characterized in that: the left side of the air compressor shell is connected with a left end cover, the right side of the air compressor shell is connected with the right part of a motor shell, and the right side of the right part of the motor shell is connected with a right volute; a main impeller is connected to an output shaft on the left side of the motor, an auxiliary impeller is connected to a motor tail end shaft on the right side of the motor, a cooling flow channel is arranged in a gap between the shell of the air compressor and the left part of the shell of the motor, two ends of the cooling flow channel are respectively provided with a cooling flow channel inlet and a cooling flow channel outlet, the cooling flow channel outlet is communicated with an air outlet on the right volute through an auxiliary pipeline, and a cooling air inlet pipe is connected to the right center of the right volute; the left side center hole of the left end cover is connected with an air compressor air inlet pipe, and an air compressor air outlet pipe is connected to the shell of the air compressor.
2. The compact, high efficiency centrifugal air compressor of claim 1, wherein: the main impeller is located in the left end cover, and the auxiliary impeller is located in the right volute.
3. The compact, high efficiency centrifugal air compressor of claim 2, wherein: the right part of the motor shell, the auxiliary impeller and the right volute form a centrifugal fan, the motor is started to drive the auxiliary impeller to rotate, and cooling air is pumped into the cooling flow channel through the cooling air inlet pipe and the auxiliary pipeline.
4. The compact, high efficiency centrifugal air compressor of claim 3, wherein: the outlet of the air outlet pipe of the air compressor is arranged in a horn shape.
5. The compact, high efficiency centrifugal air compressor of claim 1, wherein: the cooling flow passage is spirally arranged and surrounds the outer peripheral surface of the left part of the motor shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220854551.4U CN217010621U (en) | 2022-04-13 | 2022-04-13 | High-efficient centrifugal air compressor of compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220854551.4U CN217010621U (en) | 2022-04-13 | 2022-04-13 | High-efficient centrifugal air compressor of compact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217010621U true CN217010621U (en) | 2022-07-19 |
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ID=82376182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220854551.4U Active CN217010621U (en) | 2022-04-13 | 2022-04-13 | High-efficient centrifugal air compressor of compact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217010621U (en) |
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2022
- 2022-04-13 CN CN202220854551.4U patent/CN217010621U/en active Active
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