CN210137220U - Anti-corrosion motor rotor structure and electronic water pump - Google Patents
Anti-corrosion motor rotor structure and electronic water pump Download PDFInfo
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- CN210137220U CN210137220U CN201921314797.7U CN201921314797U CN210137220U CN 210137220 U CN210137220 U CN 210137220U CN 201921314797 U CN201921314797 U CN 201921314797U CN 210137220 U CN210137220 U CN 210137220U
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Abstract
The utility model relates to an anticorrosive electric motor rotor structure and electronic water pump, anticorrosive electric motor rotor structure include pivot, rotor core and magnet steel, anticorrosive left end board, anticorrosive right end board and anticorrosive protective sheath, and anticorrosive protective sheath is in rotor core, magnet steel, anticorrosive left end board and anticorrosive right end board's outside, and anticorrosive left end board, anticorrosive right end board and anticorrosive protective sheath constitute anticorrosive sealed chamber, and it has the encapsulation material to fill in anticorrosive sealed intracavity. The utility model has the advantages that: simple structure, the feasibility of implementation is strong, and the encapsulating material is sealed to be the first layer of anticorrosive sealed chamber sealed. The rotor core and the magnetic steel are effectively protected from corrosion in the corrosion-resistant sealing cavity. In addition, the elastic sealing ring forms a second layer of seal of the anticorrosion sealing cavity, and the static sealing characteristic of the elastic sealing ring can be utilized to prevent the sealing failure of the potting material.
Description
Technical Field
The utility model relates to an anticorrosive electric motor rotor structure and electronic pump.
Background
The automobile water pump is a core component of an engine cooling system and is used for cooling an automobile engine. According to the difference of drive mode, can divide into mechanical water pump, electron water pump, the former is comparatively general, and the latter mainly used new energy automobile and some high-end car.
The mechanical water pump is driven by the engine, and the cooling effect is in direct proportion to the rotating speed of the engine. The electronic water pump is controlled by a control unit of the engine through current, and whether the electronic water pump needs to work or not is judged according to the temperature change of the engine. The new energy automobile is driven by a motor, a mechanical water pump cannot be adopted, but the motor still needs a cooling system for temperature control, so the new energy automobile must adopt an electronic water pump. In addition, the electronic water pump has the advantages of energy conservation, consumption reduction, high efficiency and environmental protection, and under the support and guidance of national policies, the electronic water pump gradually replaces the traditional mechanical water pump.
For pumps using hydrated glycol coolant as cooling medium, the motor is usually cooled by the medium to meet the requirements of good performance, high speed and high power density of the motor, and the problem of corrosion prevention of the rotor immersed in the cooling medium needs to be considered first in the design of the motor.
The existing rotor of the electronic water pump adopts a method of coating an epoxy coating or a method of wrapping stainless steel and welding a seam by laser to seal an iron core and a magnetic steel part of the rotor, so that the iron core and the magnetic steel are isolated from contacting with an external cooling medium, and the corrosion resistance of the rotor is realized.
However, the coating of the rotor product adopting the epoxy coating for surface treatment cannot completely avoid the conditions of collision, cracking and the like in the subsequent transportation and processing processes, so that the final finished product has great adverse potential hazards.
The rotor product wrapped by stainless steel has higher welding working hour and cost, and the sealing performance of the welded seam after welding is difficult to keep consistency, and has larger bad hidden trouble.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides an anticorrosive motor rotor structure and electronic water pump improves the anticorrosive reliability of rotor.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an anticorrosive electric motor rotor structure, which comprises a rotating shaft, rotor core and magnet steel, rotor core installs in the pivot, the magnet steel is installed on rotor core, still include anticorrosive left end board, anticorrosive right-hand member board and anticorrosive protective sheath, anticorrosive left end board and anticorrosive right-hand member board cover are in the pivot and are located rotor core's both ends respectively, anticorrosive protective sheath overlaps at rotor core, the magnet steel, the outside of anticorrosive left end board and anticorrosive right-hand member board, anticorrosive left end board, anticorrosive right-hand member board and anticorrosive protective sheath constitute anticorrosive sealed chamber, it has the encapsulating material to fill in anticorrosive sealed intracavity.
Further inject, be equipped with the seal groove on anticorrosive left end plate and anticorrosive right end plate's the outer lane and the inner circle towards rotor core's medial surface, the seal groove of outer lane forms the seal clearance respectively between anticorrosive left end plate and anticorrosive protective sheath, between anticorrosive right end plate and the anticorrosive protective sheath, the seal groove of inner circle forms the seal clearance respectively between anticorrosive left end plate and pivot, between anticorrosive right end plate and the pivot, the potting material of packing into seal clearance forms the potting material sealing ring.
Further inject, between the side of anticorrosive left end plate and the inner wall of anticorrosive protective sheath, sealed through elastic seal circle between the side of anticorrosive right end plate and the inner wall of anticorrosive protective sheath, elastic seal circle is located the outside of the potting material sealing ring of inboard outer lane, has the seal groove on the side of anticorrosive left end plate and anticorrosive right end plate, and elastic seal circle sets up in the seal groove.
Further limited, the potting material is epoxy resin or silica gel or polyurethane.
Further inject, have the location shaft shoulder that is used for carrying out the installation location to the rotor structure on the pivot in the pivot, the location shaft shoulder is located anticorrosive left end board one side, has the seal groove on the inner circle of the outside end face of anticorrosive left end board, forms the seal clearance between this seal groove and pivot, location shaft shoulder, sets up the elastic seal circle in the seal clearance.
And further limiting, wherein a sealing groove is formed in an inner ring of the end face of the outer side of the corrosion-resistant right end plate, a sealing gap is formed between the sealing groove and the rotating shaft, and a potting material is filled in the sealing gap to form a potting material sealing ring.
Further inject, the seal groove of the inside and outside both sides of anticorrosive right end plate's inner circle communicates through the excessive passageway of gluing, and the excessive passageway of gluing sets up on anticorrosive right end plate and/or pivot.
Further inject, have in the pivot and be used for carrying out the sunk structure of circumference location to rotor core, have in rotor core's the hole with sunk structure complex protruding structure, this sunk structure extends to the outside of anticorrosive right side end plate, forms the excessive passageway of gluing.
Or, on the basis that the anticorrosion sealing cavity is filled with the potting material, the anticorrosion left end plate and the anticorrosion protective sleeve are sealed between the inner walls, and the anticorrosion right end plate and the anticorrosion protective sleeve are sealed by the elastic sealing rings.
An electronic water pump is provided with the anti-corrosion rotor structure.
The utility model has the advantages that: simple structure, the feasibility of implementation is strong, and the encapsulation material is sealed to constitute the first layer of anticorrosive sealed chamber sealed for anticorrosive left end board, anticorrosive right end board and anticorrosive protective sheath. The rotor core and the magnetic steel are effectively protected from corrosion in the corrosion-resistant sealing cavity. In addition, the potting material for vacuum encapsulation can play a role in sealing, and can reinforce the fixation between the magnetic steel and the anti-corrosion protective sleeve as well as between the magnetic steel and the rotor core due to the bonding effect of the potting material, so that the structure is firmer, the rotor part can bear the centrifugal force during high-speed operation, and the rotor part is more suitable for a motor running at high speed.
In addition, the elastic sealing ring forms a second layer of seal of the anticorrosion sealing cavity, the elastic sealing ring forms static seal through the extrusion deformation of the elastic body to prevent a medium from entering the rotor structure, and the static sealing characteristic of the elastic sealing ring can be utilized to prevent sealing failure of the potting material caused by epoxy cracking.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a perspective view of the corrosion-proof right end plate of the present invention.
Fig. 3 is a sectional view of the rotor core and the rotating shaft according to the present invention.
Fig. 4 is a sectional view of the anti-corrosion right end plate and the rotating shaft of the utility model.
In the figure, 1, a rotating shaft, 2, a rotor core, 3, magnetic steel, 4, an anticorrosive left end plate, 5, an anticorrosive right end plate, 6, an anticorrosive protective sleeve, 7, a sealing groove, 8, a potting material sealing ring, 9, a positioning shaft shoulder, 10, a glue overflow channel, 11, a concave structure and 12, an elastic sealing ring.
Detailed Description
Embodiment 1, an anticorrosive electric motor rotor structure, including pivot 1, rotor core 2, magnet steel 3, anticorrosive left end plate 4, anticorrosive right end plate 5 and anticorrosive protective sheath 6, rotor core 2 installs in pivot 1, magnet steel 3 installs on rotor core 2, anticorrosive left end plate 4 overlaps in pivot 1 and is located rotor core 2's both ends respectively with anticorrosive right end plate 5, anticorrosive protective sheath 6 overlaps at rotor core 2, magnet steel 3, anticorrosive left end plate 4 and anticorrosive right end plate 5's outside, anticorrosive left end plate 4, anticorrosive right end plate 5 and anticorrosive protective sheath 6 constitute anticorrosive sealed chamber, fill the potting material in anticorrosive sealed chamber, specifically, fill the potting material through the method of vacuum embedment packing in anticorrosive sealed chamber.
The potting material is corrosion-resistant potting material such as epoxy resin, silica gel, polyurethane and the like.
The anti-corrosion protective sleeve 6 is made of a thin-wall anti-corrosion metal material, such as a stainless steel thin-wall pipe.
Example 2, on the basis of example 1: be equipped with seal groove 7 on anticorrosive left end plate 4 and anticorrosive right end plate 5's the outer lane and the inner circle towards rotor core 2's medial surface, seal groove 7 of outer lane is respectively between anticorrosive left end plate 4 and anticorrosive protective sheath 6, form the seal clearance between anticorrosive right end plate 5 and the anticorrosive protective sheath 6, seal groove 7 of inner circle is respectively between anticorrosive left end plate 4 and pivot 1, form the seal clearance between anticorrosive right end plate 5 and the pivot 1, fill the potting material in anticorrosive sealed intracavity, fill the potting material of going into seal clearance, form potting material sealing ring 8.
The encapsulation material sealing ring 8 of the inboard inner and outer lane of increase has strengthened the sealed effect in anticorrosive sealed chamber compared embodiment 1, makes the anticorrosive electric motor rotor structure of this embodiment 2 have better anticorrosive effect.
Example 3, on the basis of example 1: and the space between the inner walls of the anti-corrosion left end plate 4 and the anti-corrosion protective sleeve 6 and the space between the inner walls of the anti-corrosion right end plate 5 and the anti-corrosion protective sleeve 6 are sealed by elastic sealing rings 12. The side surfaces of the anti-corrosion left end plate 4 and the anti-corrosion right end plate 5 are provided with sealing grooves 7, and elastic sealing rings 12 are arranged in the sealing grooves 7.
Example 4, on the basis of example 2: set up elastic seal 12 between the side of anticorrosive left end board 4 and the inner wall of anticorrosive protective sheath 6, between the side of anticorrosive right-hand member board 5 and the inner wall of anticorrosive protective sheath 6, elastic seal 12 is located the outside of the potting material sealing ring 8 of inboard outer lane. The side surfaces of the anti-corrosion left end plate 4 and the anti-corrosion right end plate 5 are provided with sealing grooves 7, and elastic sealing rings 12 are arranged in the sealing grooves 7.
Example 5, on the basis of example 4: the anti-corrosion left end plate 4 is characterized in that a sealing groove 7 is formed in an inner ring of the end face of the outer side of the anti-corrosion left end plate 4, a positioning shaft shoulder 9 used for installing and positioning a rotor structure on the rotating shaft 1 is arranged on the rotating shaft 1, the positioning shaft shoulder 9 is located on one side of the anti-corrosion left end plate 4, a sealing gap is formed between the sealing groove 7 and the rotating shaft 1 and between the sealing groove 7 and the positioning shaft shoulder 9, an elastic sealing ring 12 is arranged in the sealing gap, and sealing is.
Example 6, the preferred embodiment of the present invention, is shown in figures 1, 2, 3 and 4.
An anticorrosion motor rotor structure comprises a rotating shaft 1, a rotor core 2, magnetic steel 3, an anticorrosion left end plate 4, an anticorrosion right end plate 5 and an anticorrosion protective sleeve 6, wherein the rotor core 2 is arranged on the rotating shaft 1, the magnetic steel 3 is arranged on the rotor core 2, the anticorrosion left end plate 4 and the anticorrosion right end plate 5 are sleeved on the rotating shaft 1 and are respectively positioned at two ends of the rotor core 2, the anticorrosion protective sleeve 6 is sleeved outside the rotor core 2, the magnetic steel 3, the anticorrosion left end plate 4 and the anticorrosion right end plate 5, the anticorrosion left end plate 4, the anticorrosion right end plate 5 and the anticorrosion protective sleeve 6 form an anticorrosion sealed cavity, sealing grooves 7 are arranged on an outer ring and an inner ring of the anticorrosion left end plate 4 and the anticorrosion right end plate 5, which face faces towards the inner side end face of the rotor core 2, sealing gaps are respectively formed between the anticorrosion left end plate 4 and the anticorrosion protective sleeve 6 and, and sealing grooves 7 of the inner ring respectively form sealing gaps between the anticorrosive left end plate 4 and the rotating shaft 1 and between the anticorrosive right end plate 5 and the rotating shaft 1, a potting material is filled in the anticorrosive sealing cavity, and the potting material filled in the sealing gaps forms a potting material sealing ring 8 of the inner ring and the outer ring of the inner side. The potting material is epoxy resin.
The inner ring of the outer end face of the anticorrosive right end plate 5 is provided with a sealing groove 7, the sealing groove 7 and the rotating shaft 1 form a sealing gap, the rotating shaft 1 is provided with a recessed structure 11 used for circumferentially positioning the rotor core 2, a raised structure matched with the recessed structure 11 is arranged in an inner hole of the rotor core 2, and the recessed structure 11 extends to the outer side of the anticorrosive right end plate 5 to form an excessive glue channel 10. The sealing grooves 7 on the inner side and the outer side of the inner ring of the anticorrosive right end plate 5 are communicated through the glue overflowing channel 10, epoxy resin filled into the anticorrosive sealing cavity overflows to the sealing groove 7 on the inner ring of the outer end face of the anticorrosive right end plate 5 through the glue overflowing channel 10 by a vacuum filling and sealing method to form a sealing gap with the rotating shaft 1, so that the epoxy resin is filled in the sealing gap to form a sealing ring 8 of the potting material. Specifically, the groove structure is a plane milled on the rotating shaft. It is of course not excluded that the glue overflow channel 10 is a groove specifically arranged on the inner bore of the anti-corrosion right end plate 5.
The epoxy resin seal is a first layer seal of an anticorrosion sealed cavity formed by an anticorrosion left end plate 4, an anticorrosion right end plate 5 and an anticorrosion protective sleeve 6. The rotor iron core 2 and the magnetic steel 3 are effectively protected from corrosion in the corrosion-resistant sealing cavity. In addition, the epoxy resin for vacuum encapsulation can play a role in sealing, and can reinforce the fixation between the magnetic steel 3 and the anti-corrosion protective sleeve 6 as well as between the magnetic steel 3 and the rotor core 2 due to the bonding effect of the epoxy resin, so that the structure is firmer, the rotor part can bear the centrifugal force during high-speed operation, and the motor is more suitable for high-speed operation.
Set up elastic seal 12 between the side of anticorrosive left end board 4 and the inner wall of anticorrosive protective sheath 6, between the side of anticorrosive right-hand member board 5 and the inner wall of anticorrosive protective sheath 6, elastic seal 12 is located the outside of the potting material sealing ring 8 of inboard outer lane. The side surfaces of the anti-corrosion left end plate 4 and the anti-corrosion right end plate 5 are provided with sealing grooves 7, and elastic sealing rings 12 are arranged in the sealing grooves 7.
The rotating shaft 1 is provided with a positioning shaft shoulder 9 used for installing and positioning a rotor structure on the rotating shaft 1, the positioning shaft shoulder 9 is positioned on one side of the anticorrosion left end plate 4, a sealing groove 7 is arranged on an inner ring of the outer end face of the anticorrosion left end plate 4, a sealing gap is formed between the sealing groove 7 and the rotating shaft 1 and between the sealing groove 7 and the positioning shaft shoulder 9, an elastic sealing ring 12 is arranged in the sealing gap, and a sealing effect is formed on an anticorrosion sealing cavity.
The sealing ring 2 forms a second layer seal of the anti-corrosion sealing cavity, the sealing ring forms static seal through the extrusion deformation of the elastic body to prevent a medium from entering a rotor structure, and the static sealing characteristic of the sealing ring can be utilized to prevent the sealing failure of epoxy resin caused by epoxy cracking.
The assembly process of the anti-corrosion motor rotor structure is as follows:
firstly, an anticorrosion left end plate 4 and a rotor core 2 are sequentially sleeved on a rotating shaft 1, then a magnetic steel 3 is attached to the rotor core 2, then an anticorrosion protective sleeve 6 is sleeved, epoxy resin is filled into the anticorrosion protective sleeve 6 through the right end of the anticorrosion protective sleeve 6 by adopting a vacuum encapsulation filling method after the anticorrosion protective sleeve 6 is sleeved, an anticorrosion right end plate 5 is sleeved after the anticorrosion protective sleeve 6 is filled, redundant epoxy resin in the anticorrosion protective sleeve 6 overflows to an inner circle sealing groove 7 on the outer end face of the anticorrosion right end plate 5 through an overflow glue passage 10 to form a sealing gap with the rotating shaft 1, the sealing gap is filled with epoxy resin, and an encapsulation material sealing ring 8 is formed.
An electronic water pump having the corrosion-resistant rotor structure of embodiment 1, 2, 3, 4, 5 or 6.
Claims (10)
1. The utility model provides an anticorrosive electric motor rotor structure, includes pivot (1), rotor core (2) and magnet steel (3), and rotor core (2) are installed in pivot (1), and magnet steel (3) are installed on rotor core (2), characterized by: also comprises an anti-corrosion left end plate (4), an anti-corrosion right end plate (5) and an anti-corrosion protective sleeve (6),
anticorrosive left end board (4) and anticorrosive right end board (5) cover are on pivot (1) and are located the both ends of rotor core (2) respectively, and anticorrosive protective sheath (6) cover is in the outside of rotor core (2), magnet steel (3), anticorrosive left end board (4) and anticorrosive right end board (5), and anticorrosive left end board (4), anticorrosive right end board (5) and anticorrosive protective sheath (6) constitute anticorrosive sealed chamber, and it has the encapsulation material to fill in anticorrosive sealed intracavity.
2. The anti-corrosion motor rotor structure according to claim 1, wherein: anticorrosive left end board (4) and anticorrosive right end board (5) towards the outer lane and the interior circle of the medial surface of rotor core (2) on be equipped with seal groove (7), seal groove (7) of outer lane are respectively between anticorrosive left end board (4) and anticorrosive protective sheath (6), form sealed clearance between anticorrosive right end board (5) and anticorrosive protective sheath (6), seal groove (7) of inner circle are respectively between anticorrosive left end board (4) and pivot (1), form sealed clearance between anticorrosive right end board (5) and pivot (1), the encapsulating material of packing into sealed clearance forms encapsulating material sealing ring (8).
3. The anti-corrosion motor rotor structure according to claim 1, wherein: the anti-corrosion protective sleeve is characterized in that the inner walls of the anti-corrosion left end plate (4) and the anti-corrosion protective sleeve (6) and the inner walls of the anti-corrosion right end plate (5) and the anti-corrosion protective sleeve (6) are sealed through elastic sealing rings (12).
4. The anti-corrosion motor rotor structure according to claim 2, wherein: the side of anticorrosive left end board (4) and the inner wall of anticorrosive protective sheath (6) between, it is sealed through elastic sealing circle (12) between the side of anticorrosive right end board (5) and the inner wall of anticorrosive protective sheath (6), elastic sealing circle (12) are located the outside of the encapsulating material sealing ring (8) of inboard outer lane, have seal groove (7) on the side of anticorrosive left end board (4) and anticorrosive right end board (5), elastic sealing circle (12) set up in seal groove (7).
5. An anti-corrosion motor rotor structure according to claim 1, 2, 3 or 4, wherein: the potting material is epoxy resin or silica gel or polyurethane.
6. An anti-corrosion motor rotor structure according to claim 1, 2, 3 or 4, wherein: the anti-corrosion rotor structure is characterized in that a positioning shaft shoulder (9) used for installing and positioning a rotor structure on the rotating shaft (1) is arranged on the rotating shaft (1), the positioning shaft shoulder (9) is located on one side of the anti-corrosion left end plate (4), a sealing groove (7) is formed in an inner ring of the outer end face of the anti-corrosion left end plate (4), a sealing gap is formed between the sealing groove (7) and the rotating shaft (1) and between the positioning shaft shoulder (9), and an elastic sealing ring (12) is arranged in the sealing gap.
7. The anti-corrosion motor rotor structure according to claim 6, wherein: the inner ring of the outer end face of the anti-corrosion right end plate (5) is provided with a sealing groove (7), the sealing groove (7) and the rotating shaft (1) form a sealing gap, and a potting material is filled in the sealing gap to form a potting material sealing ring (8).
8. The anti-corrosion motor rotor structure according to claim 7, wherein: the sealing grooves (7) on the inner side and the outer side of the inner ring of the anti-corrosion right end plate (5) are communicated through the glue overflowing channel (10), and the glue overflowing channel (10) is arranged on the anti-corrosion right end plate (5) and/or the rotating shaft (1).
9. The anti-corrosion motor rotor structure according to claim 8, wherein: pivot (1) on have and be used for carrying out the sunk structure (11) of circumference location to rotor core (2), have in the hole of rotor core (2) with sunk structure (11) complex protruding structure, this sunk structure (11) extend to the outside of anticorrosive right side end plate (5), form excessive gluey passageway (10).
10. An electronic water pump is characterized in that: an erosion resistant rotor structure as claimed in claim 1 or 2 or 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921314797.7U CN210137220U (en) | 2019-08-14 | 2019-08-14 | Anti-corrosion motor rotor structure and electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921314797.7U CN210137220U (en) | 2019-08-14 | 2019-08-14 | Anti-corrosion motor rotor structure and electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210137220U true CN210137220U (en) | 2020-03-10 |
Family
ID=69707913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921314797.7U Active CN210137220U (en) | 2019-08-14 | 2019-08-14 | Anti-corrosion motor rotor structure and electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210137220U (en) |
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2019
- 2019-08-14 CN CN201921314797.7U patent/CN210137220U/en active Active
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