CN210074943U - Sealed waterproof motor and cooling fan - Google Patents
Sealed waterproof motor and cooling fan Download PDFInfo
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- CN210074943U CN210074943U CN201921283323.0U CN201921283323U CN210074943U CN 210074943 U CN210074943 U CN 210074943U CN 201921283323 U CN201921283323 U CN 201921283323U CN 210074943 U CN210074943 U CN 210074943U
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Abstract
The utility model discloses a sealed waterproof motor and a cooling fan, which comprises a stator and a rotor, wherein the rotor is arranged around the stator and rotates around the stator; the stator comprises a PCBA plate, a lower wire frame, an upper wire frame, a silicon steel sheet assembly and a sealing coating layer, the PCBA plate is embedded on the lower wire frame, the lower wire frame and the upper wire frame are respectively fixed at two ends of the silicon steel sheet assembly and are integrally accommodated in the sealing coating layer to form a fixed stator structure, the sealing coating layer is provided with an opening, the silicon steel sheet assembly comprises an extending part arranged in the opening, an electroplating protective layer is arranged on the extending part, and a rotor is arranged on one side, far away from the silicon steel sheet assembly, of the electroplating protective layer; the electroplating protection layer that the extension set up sets up the opening of holding extension on the sealed coating layer simultaneously for sealed coating layer and electroplating protection layer seamless connection can play waterproof and anticorrosive effect, and electroplating protection layer's heat-sinking capability is stronger, thickness is thinner, reduces the breath magnetic field between stator and the rotor, and then increases energy conversion efficiency.
Description
Technical Field
The utility model relates to a radiator fan especially relates to a sealed waterproof motor and radiator fan.
Background
With the increasingly wide field of electronic products, all the fields with electronic components need to be additionally provided with a cooling fan to cool the electronic products, and the requirements on the self heat dissipation and waterproof performance of the cooling fan are increasingly high in many places due to severe environments, such as high-temperature, high-humidity and high-salinity areas;
in places with severe environment, the cooling fan needs to be protected against water, corrosion or cooling, most of the existing cooling fans adopt a sealing material to coat the whole stator, circuit board and coil part of the motor, although the sealing material can play the role of water resistance and corrosion resistance, the heat can be wrapped in the sealing material and cannot be radiated, so that the service life of the motor is reduced, and because the silicon steel sheet of the stator part is also coated with the sealing material and has larger thickness, the silicon steel sheet is far away from the rotor, so that the magnetic field air gap between the rotor and the stator is increased, the energy transfer efficiency of the motor is seriously reduced, the rotating speed of the cooling fan is limited, the cooling capacity of the cooling fan is reduced, and the cooling requirement of electronic products under the thermal environment condition is difficult to meet; in the patent document CN 201349154Y, the proposed waterproof structure of the motor stator and the motor adopt a method of sealing the whole stator to prevent water, although the waterproof structure has a significant waterproof effect, the heat generated by the stator is completely wrapped in the protective layer, and cannot be transferred with the outside to dissipate heat, so that the stator stops operating or even is damaged due to overheating, which is a problem that needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the above-mentioned technique, the utility model provides a sealed waterproof motor and radiator fan that radiating effect is good and work efficiency is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a sealed waterproof motor includes a stator and a rotor disposed around the stator and rotating around the stator; the stator includes PCBA board, lower line frame, last line frame, silicon steel sheet subassembly and sealed cladding layer, and the PCBA board inlays on the lower line frame, and the lower line frame is fixed respectively at the both ends of silicon steel sheet subassembly with last line frame to integrative holding forms fixed stator structure in sealed cladding layer, and sealed cladding layer is provided with the opening, and the silicon steel sheet subassembly is provided with the electroplating protective layer with sealed cladding layer seamless connection including setting up the extension in the opening on the extension, and one side of keeping away from silicon steel sheet subassembly of electroplating protective layer sets up the rotor.
Wherein, the thickness of the electroplating protective layer is 8-12 microns, and the electroplating protective layer and the adjacent sealing coating layer are positioned on the same curved surface, thereby forming an integrated waterproof layer.
Wherein a gap is arranged between the silicon steel sheet component and the rotor, and the width of the gap is 0.25-0.5 mm.
The silicon steel sheet assembly comprises a plurality of silicon steel sheets which are tightly overlapped, and an electroplating protective layer is arranged on the extending part of each silicon steel sheet.
Wherein, the sealing coating layer is provided with a bulge part on one side close to the lower wire frame, and the bulge part is communicated with the outside atmosphere.
Wherein, the quantity of bulge is a plurality of, and the bulge interval encircles and sets up on sealed cladding layer's outer anchor ring, and all is provided with the depressed part between two bulges, and the depressed part communicates with external atmosphere.
In order to achieve the above object, the utility model also provides the following technical scheme: a kind of cooling fan, including the above-mentioned sealed waterproof motor, fan impeller, install the blade on the fan impeller and fan frame used for fixing the sealed waterproof motor, the rotor of the sealed motor is fixed with fan impeller and drives the fan impeller to rotate, and then the blade rotates; the strong magnetic motor comprises a stator and a rotor, wherein the rotor is arranged around the stator and rotates around the stator; the stator includes PCBA board, lower line frame, last line frame, silicon steel sheet subassembly and sealed cladding layer, and the PCBA board inlays on the lower line frame, and the lower line frame is fixed respectively at the both ends of silicon steel sheet subassembly with last line frame to integrative holding forms fixed stator structure in sealed cladding layer, and sealed cladding layer is provided with the opening, and the silicon steel sheet subassembly is provided with the electroplating protective layer with sealed cladding layer seamless connection including setting up the extension in the opening on the extension, and one side of keeping away from silicon steel sheet subassembly of electroplating protective layer sets up the rotor.
The heat radiation fan comprises an air outlet communicated with the outside atmosphere, and the protruding part of the sealed motor is communicated with the air outlet.
The utility model has the advantages that: compared with the prior art, the sealed waterproof motor comprises a stator and a rotor, wherein the rotor is arranged around the stator and rotates around the stator; the stator comprises a PCBA plate, a lower wire frame, an upper wire frame, a silicon steel sheet assembly and a sealing coating layer, the PCBA plate is embedded on the lower wire frame, the lower wire frame and the upper wire frame are respectively fixed at two ends of the silicon steel sheet assembly and are integrally accommodated in the sealing coating layer to form a fixed stator structure, the sealing coating layer is provided with an opening, the silicon steel sheet assembly comprises an extending part arranged in the opening, an electroplating protective layer seamlessly connected with the sealing coating layer is arranged on the extending part, and a rotor is arranged on one side, far away from the silicon steel sheet assembly, of the electroplating protective layer; under the magnetic force effect of blade of silicon steel subassembly, the rotor is rotatory around the stator, the electroplating protection layer that the extension of blade of silicon steel subassembly set up, be provided with the opening of just in time holding extension on the sealed coating simultaneously, make sealed coating and electroplating protection layer seamless connection, can play waterproof and anticorrosive effect, and compare in current plastic layer, the heat-sinking capability of electroplating protection layer is stronger and thickness is thinner, can further reduce the breath magnetic field between stator and the rotor, and then increase energy conversion efficiency.
Drawings
Fig. 1 is an overall schematic view of a sealed waterproof motor according to the present invention;
FIG. 2 is an exploded view of the sealed waterproof motor of the present invention;
FIG. 3 is an exploded view of the stator structure of the present invention
FIG. 4 is a schematic view of a silicon steel sheet assembly of the present invention;
fig. 5 is a schematic structural view of the sealed waterproof motor of the present invention;
fig. 6 is a plan view of the heat dissipation fan of the present invention;
fig. 7 is an exploded view of the heat dissipation fan of the present invention;
fig. 8 is a sectional view taken along line a-a of the heat dissipating fan of the present invention.
Description of the main elements
1. Motor 2, fan impeller
3. Blade 4 and fan frame
11. Stator 12, rotor
41. Air outlet 111, silicon steel sheet component
112. Sealing coating layer 113 and upper line frame
114. Lower line frame 115, PCBA board
1111. Silicon steel sheet 1112, electroplating protective layer
1121. Opening 1122, projection
1123. A recessed portion.
Detailed Description
In order to more clearly illustrate the technical solutions in the present technology, the drawings used in the description of the embodiments or the prior art will be described below.
Referring to fig. 1 to 3 and 8, the present embodiment provides a sealed waterproof motor 1, including a stator 11 and a rotor 12, wherein the rotor 12 is disposed around the stator 11 and rotates around the stator 11; the stator 11 comprises a PCBA plate 115, a lower wire frame 114, an upper wire frame 113, a silicon steel sheet 1111 component 111 and a sealing cladding layer 112, the PCBA plate 115 is embedded on the lower wire frame 114, the lower wire frame 114 and the upper wire frame 113 are respectively fixed at two ends of the silicon steel sheet 1111 component 111 and are integrally accommodated in the sealing cladding layer 112 to form a fixed stator 11 structure, the sealing cladding layer 112 is provided with an opening 1121, the silicon steel sheet 1111 component 111 comprises an extension part arranged in the opening 1121, an electroplating protective layer 1112 in seamless connection with the sealing cladding layer 112 is arranged on the extension part, and a rotor 12 is arranged on one side of the electroplating protective layer 1112, away from the silicon steel sheet 1111 component 111; under the magnetic force of the silicon steel sheet 1111 component 111, the rotor 12 rotates around the stator 11, the electroplating protective layer 1112 arranged on the extension part of the silicon steel sheet 1111 component 111 and the opening 1121 arranged on the sealing coating layer 112 and just accommodating the extension part enable the sealing coating layer 112 and the electroplating protective layer 1112 to be connected seamlessly, the waterproof and anti-corrosion functions can be achieved, and compared with an existing plastic layer, the electroplating protective layer 1112 is stronger in heat dissipation capacity and thinner in thickness, the air gap magnetic field between the stator 11 and the rotor 12 can be reduced by reducing the distance between the rotor 12 and the silicon steel sheet 1111, the magnetic field air gap functions to transfer energy, the smaller the air gap is, the shorter the air gap magnetic field chain is, and the shorter the resistance arm is, and the larger the force of the resistance arm is; similarly, the smaller the air gap, the larger the force of the magnetic field chain, the more the electric energy from the stator 11 can be absorbed, and further the energy transmission efficiency of the electric energy transmission mechanical energy is increased, meanwhile, the sealing coating layer 112 is arranged at the positions where the rest of the outside is not provided with the electroplating protection layer 1112, and the waterproof and anticorrosion effects can also be achieved, and the cost is low.
Referring to fig. 8, the thickness of the plating protection layer 1112 of the embodiment is 8-12 μm, and the plating protection layer 1112 and the adjacent sealing coating layer 112 are located on the same curved surface, thereby forming an integrated waterproof layer; the electroplating method comprises water electroplating, the coating of the water electroplating is extremely thin and cheap, the thickness can be controlled within the range of 5-30 microns according to the use requirement during electroplating, if the coating thickness is less than 5 microns, the requirement on the electroplating process is high, the protective effect of the too thin coating on the stator 11 is weak, if the coating thickness is more than 30 microns, not only more electroplating targets are consumed, but also the magnetic field gap between the stator 11 and the rotor 12 is increased, and the transmission efficiency is reduced, therefore, if the conditions of good waterproof and anti-corrosion effects and high transmission efficiency are considered at the same time, the coating with the thickness of 8-12 microns is preferably selected, preferably, the coating thickness is about 10 microns, the embodiment has the advantage that the thickness of the electroplating layer can be adjusted according to the actual requirement of a user, and a paint spraying protective layer or an electroplating protective layer 1112 and a paint spraying protective layer can be adopted to replace, the corrosion resistance and the wear resistance of the plating layer can be enhanced, the protection capability of the stator 11 is further enhanced, and the service life is prolonged.
Referring to fig. 4 and 8, in the present embodiment, a gap is formed between the silicon steel sheet 1111 component 111 and the rotor 12, and the width of the gap is 0.25-0.5mm, the smaller the distance between the silicon steel sheet 1111 component 111 and the rotor 12 is, the smaller the magnetic field air gap is, the faster the energy transmission efficiency is, but the smaller the gap is, and when the rotor 12 rotates, the more heat is generated in a unit volume, so that the higher the temperature of the motor 1 is, and therefore, a reasonable gap needs to be formed, and the sizes of the heat dissipation fans required for different electrical components are different, so that the required sizes of the shapes of the motor 1 are different, and the gap distance between the rotor 12 and the silicon steel sheet 1111 component 111 is also affected; the silicon steel sheet 1111 assembly 111 of the present embodiment includes a plurality of silicon steel sheets 1111, the plurality of silicon steel sheets 1111 are closely stacked, an electroplating protection layer 1112 is disposed on an extension portion of each silicon steel sheet 1111, the silicon steel sheets 1111 have excellent electromagnetic performance, and the silicon steel sheets 1111 are closely stacked, and an electroplating layer is coated on the periphery of the silicon steel sheets 1111, because the electroplating layer is thin, the gap distance between the silicon steel sheets 1111 and the rotor 12 can be reduced, and the energy transmission efficiency can be increased.
Referring to fig. 5, in the present embodiment, a protrusion 1122 is disposed on a side of the sealing coating layer 112 close to the lower bobbin 114, the protrusion 1122 is communicated with the outside atmosphere, since the inside of the stator 11 generates heat when the motor 1 is in operation, the temperature of the sealing coating layer 112 is increased, the protrusion 1122 increases the contact area between the sealing coating layer 112 and the air, the heat dissipation capability of the sealing coating layer 112 is improved, and the heat dissipation effect of the motor 1 is further improved; the number of the protruding portions 1122 of the present embodiment is plural, the protruding portions 1122 are arranged on the outer circumferential surface of the sealing coating 112 at intervals, the recessed portions 1123 are arranged between the two protruding portions 1122, and the recessed portions 1123 are communicated with the external atmosphere, so that the contact area between the sealing coating 112 and the air is further increased, and the heat dissipation effect of the motor 1 is further increased; the sealing coating layer 112 of the embodiment is an injection molding layer, the silicon steel sheet 1111 is electroplated and then connected with the upper wire frame 113 and the lower wire frame 114, the sealing coating layer 112 is formed through low-pressure injection molding, a fixed integrated stator 11 structure is further formed in a sealing mode, the sealing coating layer 112 is plastic, and the plastic has the advantages of insulation, water resistance, good heat conductivity and low cost.
Referring to fig. 6 and 7, the embodiment further provides a heat dissipation fan, which includes the above-mentioned sealed waterproof motor 1, the blade 3 wheel 2, the blade 3 mounted on the blade 3 wheel 2, and the fan frame 4 for fixing the sealed waterproof motor 1, wherein the rotor 12 of the sealed motor 1 is fixed with the blade 3 wheel 2 and drives the blade 3 wheel 2 to rotate, and further the blade 3 rotates; the sealed waterproof motor 1 has the advantages of good waterproof and anti-corrosion effects and good heat dissipation performance, so that the cooling fan can be suitable for high-humidity, high-temperature and high-salinity areas, the distance between the stator 11 and the rotor 12 of the sealed waterproof motor 1 is small, the energy transmission efficiency is high, and the sealed waterproof motor has the advantages of strong practicability and high cost performance; the cooling fan of the embodiment includes the air outlet 41 communicating with the outside atmosphere, the protrusion 1122 of the sealed motor 1 communicates with the air outlet 41, and since the protrusion 1122 of the sealed motor 1 communicates with the air outlet 41, when the blade 3 of the cooling fan rotates, an air fluid is formed, and the air fluid contacts with the protrusion 1122, thereby enhancing the heat dissipation capability of the protrusion 1122, increasing the heat dissipation speed of the recess 1123 beside the protrusion 1122, further improving the heat dissipation effect of the sealed motor 1, and further reducing the operating temperature of the cooling fan.
The utility model has the advantages that:
(1) the extension part of the silicon steel sheet component is provided with the electroplating protective layer, so that the silicon steel sheet component has good waterproof and anti-corrosion effects and more outstanding heat dissipation capability, and the electroplating protective layer is thinner than the traditional plastic coating layer, thereby reducing the air gap of a magnetic field and improving the energy conversion efficiency;
(2) the arrangement of the convex part increases the contact area of the sealing coating layer and air, improves the heat dissipation capacity of the sealing coating layer and further improves the heat dissipation effect of the motor;
(3) all be provided with the depressed part between two bulges, further increased the area of contact of sealed coating with the air to the radiating effect of motor has further been increased.
The above disclosure is only one or several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (9)
1. A sealed waterproof motor comprising a stator and a rotor disposed around the stator and rotating around the stator; the stator includes PCBA board, lower line frame, silicon steel sheet subassembly and sealed cladding layer, the PCBA board inlays on the lower line frame, the lower line frame is fixed respectively with the frame of going up the line the both ends of silicon steel sheet subassembly, and integrative holding is in form fixed stator structure in the sealed cladding layer, sealed cladding layer is provided with the opening, the silicon steel sheet subassembly is including setting up extension in the opening, be provided with on the extension with sealed cladding layer seamless connection's electroplating inoxidizing coating, the keeping away from of electroplating inoxidizing coating one side of silicon steel sheet subassembly sets up the rotor.
2. The sealed, waterproof motor according to claim 1, wherein the thickness of said electroplated protective layer is 8-12 μm, and said electroplated protective layer and the adjacent sealing coating layer are located on the same curved surface, thereby forming an integral waterproof layer.
3. The sealed, waterproof motor according to claim 1, wherein a gap is provided between said silicon steel plate member and the rotor, and the width of said gap is 0.25-0.5 mm.
4. The sealed, waterproof motor according to claim 1, wherein said silicon steel sheet assembly comprises a plurality of silicon steel sheets closely stacked, each extending portion of said silicon steel sheets being provided with a plating protective layer.
5. The sealed, waterproof motor of claim 1, wherein a side of said seal coating layer adjacent to said lower bobbin is provided with a protrusion, said protrusion being in communication with the outside atmosphere.
6. The hermetically sealed and waterproof motor of claim 5, wherein the number of the protruding portions is plural, the protruding portions are disposed around the outer circumferential surface of the sealing cover at intervals, and a recessed portion is disposed between both the protruding portions, and the recessed portion is communicated with the outside atmosphere.
7. The sealed, waterproof motor of claim 1, wherein said seal coat layer is an injection molded layer.
8. A heat dissipating fan comprising the hermetic waterproof motor according to any one of claims 1 to 7, a fan wheel, a blade mounted on the fan wheel, and a fan frame for fixing the hermetic waterproof motor, wherein a rotor of the hermetic motor is fixed to the fan wheel and rotates the fan wheel, and the blade rotates.
9. The heat dissipating fan of claim 8, wherein the heat dissipating fan includes an air outlet in communication with the outside atmosphere, and the protrusion of the sealed motor is in communication with the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283323.0U CN210074943U (en) | 2019-08-09 | 2019-08-09 | Sealed waterproof motor and cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283323.0U CN210074943U (en) | 2019-08-09 | 2019-08-09 | Sealed waterproof motor and cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210074943U true CN210074943U (en) | 2020-02-14 |
Family
ID=69430957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921283323.0U Active CN210074943U (en) | 2019-08-09 | 2019-08-09 | Sealed waterproof motor and cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210074943U (en) |
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2019
- 2019-08-09 CN CN201921283323.0U patent/CN210074943U/en active Active
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