Radial-axial integrated magnetic bearing air compressor motor

Abstract

The utility model discloses a radial and axial integrated magnetic bearing air compressor motor, which comprises a motor shell, two radial and axial integrated magnetic bearings, a motor rotor and a heat dissipation assembly, the interior of the motor shell is hollow, the two radial and axial integrated magnetic bearings are arranged in the motor shell at intervals and are respectively connected to two ends of the motor shell, and the heat dissipation assembly is arranged in the motor shell. The motor rotor and the two radial-axial integrated magnetic bearings are coaxially arranged and can rotate relative to the two radial-axial integrated magnetic bearings, the heat dissipation assembly comprises a base, at least one clamping piece and at least one heat dissipation piece, the clamping piece is connected to the motor shell and detachably connected with the base, and the heat dissipation piece is arranged relative to the motor shell and connected to the base. The utility model can solve the problem that the permanent magnet stator of the motor is easily influenced by high temperature, so that the magnetism is reduced, and the performance of the motor is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a radial-axial integrated magnetic bearing air compressor motor. Background Art

[0002] With the continuous development of magnetic levitation high-speed motors, their application fields are becoming more and more extensive.

[0003] For example, the Chinese invention patent with application number: CN202410079262.5 is named: A radial-axial integrated magnetic bearing and air compressor motor, including a fixed part, an axial support part and a radial support part, the fixed part is used to be sleeved on the end of the motor rotor, the axial support part and the radial support part are both arranged on the fixed part, and the axial support part is used to provide an axial force to the motor rotor through the thrust plate to ensure the stability of the axial position of the motor rotor, and the radial support part is used to provide a radial force to the motor rotor to ensure the stability of the radial position of the motor rotor. Compared with the solution in which the radial magnetic bearing and the axial magnetic bearing are set at the same time, the device has a smaller axial extension length, so that the axial extension length of the motor rotor for matching with the magnetic bearing can be shortened accordingly, thereby increasing the first-order critical speed of the motor rotor, so that the motor rotor can rotate in a higher operating speed range. However, because the permanent magnet stator of the motor is easily affected by high temperature, its magnetic properties are reduced and the motor performance is affected.

[0004] Therefore, there is an urgent need for a radial-axial integrated magnetic bearing air compressor motor to solve the problem in the prior art that the permanent magnet stator of the motor is easily affected by high temperature, which reduces its magnetic properties and thus affects the performance of the motor. Utility Model Content

[0005] In view of this, it is necessary to provide an air compressor waste heat recovery device to solve the technical problem in the prior art that vibration is generated by the operation of the air compressor and the vibration is transmitted from the air compressor to the motor housing of the waste heat recovery chamber, thereby generating noise.

[0006] In order to achieve the above technical objectives, the technical solution of the utility model provides a radial-axial integrated magnetic bearing air compressor motor, comprising:

[0007] The motor housing is hollow inside;

[0008] Two radial-axial integrated magnetic bearings, which are spaced apart from each other and built into the motor housing, and are respectively connected to two ends of the motor housing;

[0009] a motor rotor, which is coaxially arranged with the two radial-axial integrated magnetic bearings and can rotate relative to the two radial-axial integrated magnetic bearings; and

[0010] The heat dissipation component includes a base, at least one clamping member and at least one heat dissipation member, wherein the clamping member is connected to the motor housing and is detachably connected to the base, and the heat dissipation member is arranged relative to the motor housing and is connected to the base.

[0011] Furthermore, the base is provided with a heat dissipation groove relative to the motor housing, and the side wall of the base is also provided with at least one through groove, the through groove is connected to the heat dissipation groove, the heat sink is arranged relative to the motor housing and connected to the bottom inner wall of the heat dissipation groove.

[0012] Furthermore, the number of the heat sinks in the heat dissipation assembly is two, the two heat sinks are spaced apart from each other and are both connected to the bottom inner wall of the heat dissipation slot, and the two heat sinks are both arranged relative to the motor housing.

[0013] Furthermore, a slide groove is provided on one side of the base, the slide groove passes through a side wall of the base and is connected to the heat dissipation groove. The heat dissipation assembly also includes a connecting plate, the connecting plate is connected to the bottom of the motor housing, and a connecting groove is provided relative to the heat dissipation groove. The connecting plate can be slidably inserted in the slide groove, and the clip is connected to the connecting plate and is detachably connected to the base.

[0014] Furthermore, at least two threaded holes are formed on the top outer wall of the base, and the threaded holes penetrate the slide grooves. The connecting plate has connecting holes relative to the threaded holes. The clamping parts are arranged in one-to-one correspondence with the threaded holes and are detachably connected to the threaded holes.

[0015] Furthermore, the clamping part includes a fastening connection part and a first elastic part, the fastening connection part has a large diameter section and a threaded section, the threaded section of the fastening connection part passes through the connecting hole and is threadedly connected to the threaded hole, and the first elastic part is arranged between the top outer wall of the base and the large diameter section of the fastening connection part, and abuts against the top outer wall of the base and the large diameter section of the fastening connection part.

[0016] Furthermore, the heat dissipation assembly also includes two second elastic parts, which are respectively arranged on both sides of the connecting plate and are both connected to the inner wall of the slide groove, and the second elastic part abuts against the inner wall of the slide groove and the connecting plate.

[0017] Furthermore, the diameter of the communicating hole is larger than the diameter of the threaded section of the fastening connection portion.

[0018] Furthermore, the heat dissipation assembly also includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are evenly arranged along the circumferential direction of the motor housing and are all connected to the motor housing.

[0019] Furthermore, the heat dissipation assembly also includes a heat dissipation seat, which spans the connecting groove and is connected to the connecting plate. The heat dissipation seat is arranged at the bottom of the motor housing and is connected to the heat dissipation fins.

[0020] Compared with the prior art, the beneficial effects of the utility model include: two radial-axial integrated magnetic bearings are arranged in the motor housing, the motor rotor is coaxially arranged with the two radial-axial integrated magnetic bearings, and can rotate relative to the two radial-axial integrated magnetic bearings to form a magnetic drive motor, a heat sink is arranged on the base, and the heat sink is arranged relative to the motor housing for heat dissipation of the motor, the clip is connected to the motor housing and detachably connected to the base to achieve a detachable connection between the motor housing and the base, compared with the prior art, by arranging at least one heat sink at the bottom of the motor housing, the heat sink is used to dissipate and cool the motor housing, and at the same time, the clip is used to form a detachable connection between the motor housing and the base, which can be convenient for users to install and disassemble it, etc. It is easy to use and can solve the technical problem in the prior art that vibration will be generated due to the operation of the air compressor and the vibration will be transmitted from the air compressor to the motor housing in the waste heat recovery chamber, thereby generating noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a radial-axial integrated magnetic bearing air compressor motor provided by an embodiment of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram from another perspective of a radial-axial integrated magnetic bearing air compressor motor provided by an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of a three-dimensional structure in which a base, a second elastic portion and a heat sink provided in an embodiment of the utility model are connected;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of another viewing angle of the base, the second elastic part and the heat sink provided by the embodiment of the utility model;

[0025] Figure 5 It is a schematic cross-sectional structure diagram of the base, the first elastic part, the clamping member, the second elastic part and the connecting plate provided in an embodiment of the utility model;

[0026] Figure 6 It is a schematic cross-sectional structure diagram of the connection between the motor housing, the radial-axial integrated magnetic bearing and the motor rotor provided by the embodiment of the utility model.

[0027] Description of reference numerals:

[0028] Motor housing 100;

[0029] A radial-axial integrated magnetic bearing 200;

[0030] Motor rotor 300;

[0031] Heat dissipation assembly 400;

[0032] Base 410;

[0033] Card connector 420;

[0034] Fastening connection portion 421;

[0035] A first elastic portion 422;

[0036] Heat sink 430;

[0037] Connecting plate 440;

[0038] A second elastic portion 450;

[0039] Heat dissipation fins 460;

[0040] Heat sink 470. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0042] See also Figure 1 , Figure 2 and Figure 6 The utility model provides a radial-axial integrated magnetic bearing air compressor motor, comprising: a motor housing 100, two radial-axial integrated magnetic bearings 200, a motor rotor 300 and a heat dissipation assembly 400. The interior of the motor housing 100 is hollow, and the two radial-axial integrated magnetic bearings 200 are mutually spaced and built into the motor housing 100, and are respectively connected to the two ends of the motor housing 100. The motor rotor 300 and the two radial-axial integrated magnetic bearings 200 are coaxially arranged and can rotate relative to the two radial-axial integrated magnetic bearings 200. The heat dissipation assembly 400 includes a base 410, at least one clamping piece 420 and at least one heat dissipation piece 430. The clamping piece 420 is connected to the motor housing 100 and is detachably connected to the base 410. The heat dissipation piece 430 is arranged relative to the motor housing 100 and is connected to the base 410.

[0043] In this device, two radial-axial integrated magnetic bearings 200 are arranged in the motor housing 100, the motor rotor 300 is coaxially arranged with the two radial-axial integrated magnetic bearings 200, and can rotate relative to the two radial-axial integrated magnetic bearings 200 to form a magnetic drive motor, a heat sink 430 is arranged on the base 410, and the heat sink 430 is arranged relative to the motor housing 100 for heat dissipation of the motor, the clamping member 420 is connected to the motor housing 100, and is detachably connected to the base 410, for realizing a detachable connection between the motor housing 100 and the base 410.

[0044] Compared with the prior art, at least one heat sink 430 is provided at the bottom of the motor housing 100 to dissipate heat and cool the motor housing 100, and at the same time, the snap-in component 420 forms a detachable connection between the motor housing 100 and the base 410, which is convenient for users to install and disassemble it. It is easy to use and can solve the technical problem in the prior art that the vibration generated by the operation of the air compressor and the vibration will be transmitted from the air compressor to the motor housing 100 in the waste heat recovery chamber, thereby generating noise.

[0045] Furthermore, in the present device, two radial-axial integrated magnetic bearings 200 and a motor rotor 300 are arranged in the motor housing 100, the two radial-axial integrated magnetic bearings 200 are used to support the motor rotor 300, and a thrust plate is arranged on the motor rotor 300, the radial-axial integrated magnetic bearing 200 includes an axial support portion and a radial support portion, wherein the axial support portion includes a plurality of axial magnetic poles, an axial winding is arranged on the axial magnetic poles, and the axial magnetic poles are used to generate an attractive force to attract the thrust plate, and the radial support portion includes a plurality of radial magnetic poles, a radial winding is arranged on the radial magnetic poles, and the radial magnetic poles are used to generate a radial attractive force to the motor rotor 300, and the effect of magnetic motor drive can be achieved by rotating the motor rotor 300 relative to the radial-axial integrated magnetic bearings 200, and the cooperation between the radial-axial integrated magnetic bearings 200 and the motor rotor 300 here belongs to a conventional setting well known to those skilled in the art, and will not be elaborated here.

[0046] like Figures 1 to 4 As shown, the base 410 is provided with a heat dissipation groove relative to the motor housing 100, and the side wall of the base 410 is also provided with at least one through groove, which is connected to the heat dissipation groove. The heat dissipation element 430 is arranged relative to the motor housing 100 and connected to the bottom inner wall of the heat dissipation groove.

[0047] The heat dissipation groove is provided to accommodate the heat dissipation element 430 , so the structure is simple and reasonable. Meanwhile, the heat dissipation effect can be effectively improved by utilizing the connection between the through groove and the heat dissipation groove.

[0048] Furthermore, the heat sink 430 here is a fan that is common and easy to purchase on the market. This is a conventional setting well known to those skilled in the art and will not be elaborated on here.

[0049] As an implementation method, Figure 3 , Figure 4 As shown, there are two heat sinks 430 in the heat dissipation assembly 400 . The two heat sinks 430 are spaced apart from each other and are both connected to the bottom inner wall of the heat dissipation slot. The two heat sinks 430 are both disposed relative to the motor housing 100 .

[0050] Providing two heat sinks 430 can improve heat dissipation and stabilize the heat dissipation effect.

[0051] like Figures 1 to 5 As shown, the heat dissipation assembly 400 further includes a connecting plate 440 , two second elastic portions 450 , a plurality of heat dissipation fins 460 , and a heat dissipation seat 470 .

[0052] Among them, a slide groove is also opened on one side of the base 410, which runs through a side wall of the base 410 and is connected to the heat dissipation groove. The connecting plate 440 is connected to the bottom of the motor housing 100 and has a connecting groove relative to the heat dissipation groove. The connecting plate 440 can be slidably inserted in the slide groove. The clip 420 is connected to the connecting plate 440 and is detachably connected to the base 410.

[0053] The installation between the motor housing 100 and the base 410 is achieved by sliding the connecting plate 440 relative to the slide groove, which has a simple structure and is easy to operate.

[0054] As an implementation method, Figures 1 to 5 As shown, at least two threaded holes are formed on the top outer wall of the base 410, and the threaded holes penetrate the slide grooves. The connecting plate 440 forms connecting holes relative to the threaded holes. The clamping parts 420 are arranged one by one corresponding to the threaded holes and are detachably connected to the threaded holes.

[0055] The detachable connection is achieved by the cooperation between the clamping member 420 and the threaded hole, which is convenient for operation.

[0056] As a preferred implementation method, Figure 5 As shown, the clamping part 420 includes a fastening connection part 421 and a first elastic part 422, the fastening connection part 421 has a large diameter section and a threaded section, the threaded section of the fastening connection part 421 passes through the connecting hole and is threadedly connected to the threaded hole, and the first elastic part 422 is arranged between the top outer wall of the base 410 and the large diameter section of the fastening connection part 421, and abuts against the top outer wall of the base 410 and the large diameter section of the fastening connection part 421.

[0057] Through the threaded connection between the fastening connection part 421 and the threaded hole, a stable connection between the connecting plate 440 and the base 410 can be achieved. At the same time, the elastic force generated by the first elastic part 422 can make the connection between the fastening connection part 421 and the connecting plate 440 and the base 410 more stable.

[0058] Furthermore, the first elastic part 422 here is a spring that is common and easy to purchase on the market, and can also be a spring or an elastic block, etc. This is a conventional setting known to those skilled in the art and will not be elaborated on in detail.

[0059] As another implementation method, Figure 5 As shown, the heat dissipation assembly 400 also includes two second elastic portions 450 , which are respectively arranged on both sides of the connecting plate 440 and are both connected to the inner wall of the slide groove, and the second elastic portions 450 are in contact with the inner wall of the slide groove and the connecting plate 440 .

[0060] The second elastic portion 450 can reduce the vibration generated when the motor is working and avoid resonance and noise.

[0061] Furthermore, the second elastic part 450 here is an elastic strip that is common and easy to purchase on the market, and can also be a spring or an elastic block, etc. This is a conventional setting known to those skilled in the art and will not be elaborated on in detail.

[0062] As a preferred implementation method, Figure 5 As shown, the diameter of the communicating hole is larger than the diameter of the threaded section of the fastening connection portion 421 .

[0063] As an implementation method, Figure 1 , Figure 2 As shown, a plurality of heat dissipation fins 460 are evenly arranged along the circumferential direction of the motor housing 100 and are all connected to the motor housing 100 .

[0064] The heat dissipation fins 460 are connected to the surface of the motor housing 100 , which is beneficial to the heat dissipation of the motor and improves the heat dissipation effect.

[0065] As another implementation method, Figure 1 , Figure 2 As shown, the heat sink 470 spans the connecting groove and is connected to the connecting plate 440 , and the heat sink 470 is disposed at the bottom of the motor housing 100 and is connected to the heat sink fins 460 .

[0066] The heat sink 470 is used to mount the motor housing 100 on the connecting groove of the connecting plate 440 , and the heat sink 470 has good thermal conductivity, which is beneficial to the heat dissipation of the motor housing 100 .

[0067] According to the specific working process of the utility model, two radial-axial integrated magnetic bearings 200 are arranged in the motor housing 100, and the motor rotor 300 is coaxially arranged with the two radial-axial integrated magnetic bearings 200, and can rotate relative to the two radial-axial integrated magnetic bearings 200 to form a magnetic drive motor. A heat sink 430 is arranged on the base 410, and the heat sink 430 is arranged relative to the motor housing 100 for heat dissipation of the motor. The clamping member 420 is connected to the motor housing 100 and is detachably connected to the base 410 to realize a detachable connection between the motor housing 100 and the base 410. Compared with the prior art, at least one heat sink 430 is arranged at the bottom of the motor housing 100, and the heat sink 430 is used to dissipate the heat and cool the motor housing 100. At the same time, the clamping member 420 forms a detachable connection between the motor housing 100 and the base 410, which can be convenient for users to install and disassemble it, and is easy to use.

[0068] When in use, the user first slides the connecting plate 440 into the slide groove along the guide of the slide groove, and then when the connecting plate 440 is tightly pressed against the second elastic part 450 and the inner wall of the slide groove, the threaded hole is aligned with the connecting hole, and then the user threads the fastening connection part 421 into the threaded hole, and makes the first elastic part 422 tightly pressed against the large diameter section of the fastening connection part and the top outer wall of the base 410, and finally during the operation of the motor, the heat sink 430 continuously supplies air to the motor housing 100, the heat sink fins 460 and the heat sink seat 470, so as to achieve the effect of heat dissipation and cooling.

[0069] Through the above structure, the device can solve the technical problem in the prior art that vibration is generated due to the operation of the air compressor and the vibration is transmitted from the air compressor to the motor housing 100 of the waste heat recovery chamber, thereby generating noise.

[0070] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A radial-axial integrated magnetic bearing air compressor motor, characterized in that: include: The motor housing is hollow inside; Two radial-axial integrated magnetic bearings, which are spaced apart from each other and built into the motor housing, and are respectively connected to two ends of the motor housing; The motor rotor is coaxially arranged with the two radial-axial integrated magnetic bearings and can rotate relative to the two radial-axial integrated magnetic bearings; as well as The heat dissipation component includes a base, at least one clamping member and at least one heat dissipation member, wherein the clamping member is connected to the motor housing and is detachably connected to the base, and the heat dissipation member is arranged relative to the motor housing and is connected to the base.

2. The radial-axial integrated magnetic bearing air compressor motor according to claim 1, characterized in that: The base is provided with a heat dissipation groove relative to the motor housing, and the side wall of the base is also provided with at least one through groove, the through groove is connected to the heat dissipation groove, the heat sink is arranged relative to the motor housing and connected to the bottom inner wall of the heat dissipation groove.

3. The radial-axial integrated magnetic bearing air compressor motor according to claim 2, characterized in that: The number of the heat sinks in the heat sink assembly is two, the two heat sinks are spaced apart from each other and are both connected to the bottom inner wall of the heat sink, and the two heat sinks are both arranged relative to the motor housing.

4. The radial-axial integrated magnetic bearing air compressor motor according to claim 3, characterized in that: A slide groove is also provided on one side of the base, and the slide groove passes through a side wall of the base and is connected to the heat dissipation groove. The heat dissipation assembly also includes a connecting plate, which is connected to the bottom of the motor housing and has a connecting groove relative to the heat dissipation groove. The connecting plate can be slidably inserted in the slide groove, and the clip is connected to the connecting plate and is detachably connected to the base.

5. The radial-axial integrated magnetic bearing air compressor motor according to claim 4, characterized in that: At least two threaded holes are formed on the top outer wall of the base, and the threaded holes penetrate the slide grooves. The connecting plate is provided with connecting holes relative to the threaded holes. The clamping parts are arranged in one-to-one correspondence with the threaded holes and are detachably connected to the threaded holes.

6. The radial-axial integrated magnetic bearing air compressor motor according to claim 5, characterized in that: The clamping part includes a fastening connection part and a first elastic part, the fastening connection part has a large diameter section and a threaded section, the threaded section of the fastening connection part passes through the connecting hole and is threadedly connected to the threaded hole, and the first elastic part is arranged between the top outer wall of the base and the large diameter section of the fastening connection part, and abuts against the top outer wall of the base and the large diameter section of the fastening connection part.

7. The radial-axial integrated magnetic bearing air compressor motor according to claim 6, characterized in that: The heat dissipation component also includes two second elastic parts, which are respectively arranged on both sides of the connecting plate and are both connected to the inner wall of the slide groove, and the second elastic parts are in contact with the inner wall of the slide groove and the connecting plate.

8. The radial-axial integrated magnetic bearing air compressor motor according to claim 7, characterized in that: The diameter of the communicating hole is larger than the diameter of the threaded section of the fastening connection portion.

9. The radial-axial integrated magnetic bearing air compressor motor according to claim 8, characterized in that: The heat dissipation assembly further includes a plurality of heat dissipation fins, which are evenly arranged along the circumferential direction of the motor housing and are all connected to the motor housing.

10. The radial-axial integrated magnetic bearing air compressor motor according to claim 9, characterized in that: The heat dissipation assembly also includes a heat dissipation seat, which spans the connecting groove and is connected to the connecting plate. The heat dissipation seat is arranged at the bottom of the motor housing and is connected to the heat dissipation fins.

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