CN109038959A - Electric corrosion prevention structure for motor bearing, stator and motor - Google Patents
Electric corrosion prevention structure for motor bearing, stator and motor Download PDFInfo
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- CN109038959A CN109038959A CN201811069219.1A CN201811069219A CN109038959A CN 109038959 A CN109038959 A CN 109038959A CN 201811069219 A CN201811069219 A CN 201811069219A CN 109038959 A CN109038959 A CN 109038959A
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- electric arbor
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- 238000005536 corrosion prevention Methods 0.000 title claims abstract description 13
- 238000005452 bending Methods 0.000 claims description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000009434 installation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides an electric corrosion prevention structure for a motor bearing, a stator and a motor. The electric corrosion prevention structure for the motor bearing comprises a front end cover (1), a rear end cover (2) and a conductive connecting piece connected between the front end cover (1) and the rear end cover (2), wherein a self-locking close-fitting clamping position is formed between one end of the conductive connecting piece and the front end cover (1) through the matching of a boss (3) and a groove (4). According to the electric corrosion prevention structure of the motor bearing, the problem of low reliability of the electric corrosion prevention structure on the motor can be effectively solved.
Description
Technical field
The invention belongs to technical field of motors, and in particular to a kind of anti-electric arbor of motor bearings, Stator and electrical machine.
Background technique
Direct current plastic packaging motor will become the mainstream of electromechanics trade development in future, solve the problems, such as plastic packaging motor bearing electric corrosion prevention
It is very urgent.As shown in Figure 1, the anti-electric etching method of bearing that plastic packaging motor uses at present mainly pastes conduction on plastic packaging shell
Adhesive tape connects the drive end bearing bracket 1 and rear end cap 2 of motor, but reliability is low, there is very big security risk；Or it will be determined using contact pin
Sub- iron core is connected with end cap, but this method cannot be fully solved plastic packaging motor bearing galvanic corrosion problems.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of anti-electric arbor of motor bearings, Stator and electrical machine,
The low problem of the electric corrosion prevention structural reliability that can be effectively improved on motor.
To solve the above-mentioned problems, the present invention provide a kind of anti-electric arbor of motor bearings, including drive end bearing bracket, rear end cap with
And be connected to the conducting connecting part between drive end bearing bracket and rear end cap, between one end and drive end bearing bracket of conducting connecting part by boss and
Groove cooperatively forms self-locking with detent.
Preferably, one end of conducting connecting part is zigzag shape structure, is formed at least one side wall of zigzag shape structure
Boss, forms on drive end bearing bracket fluted, and zigzag shape structural clamp is on drive end bearing bracket, and boss is caught in groove.
Preferably, groove is through slot, and boss is two, is separately positioned in the two side walls of zigzag shape structure, boss from
The both ends of through slot are caught in through slot.
Preferably, boss be include cylindrical section and bulb section, bulb section and cylindrical section are caught in groove, cylindrical section and groove
Side wall surface cooperation.
Preferably, boss is billiard table, and groove is cylindrical through slot, and the spacing between the two side walls of zigzag shape structure is
hT, at drive end bearing bracket and conducting connecting part cooperation position with a thickness of hD, the diameter of groove is LK, boss and groove mated position
The diameter at place is LT, the sphere diameter of boss is R, and the central angle of boss is θ, wherein
Preferably, a side of zigzag shape structure from open end to boss position be disposed with bevel edge section and
Straight section, bevel edge section are incremented by along the spacing between direction and another side far from boss.
Preferably, bevel edge section is 15 ° >=β >=5 ° relative to the tilt angle of straight section.
Preferably, multiple boss are provided on a side wall of zigzag shape structure, multiple grooves is provided on drive end bearing bracket.
Preferably, drive end bearing bracket is above realized between multiple conducting connecting parts connect along circumferential direction.
Preferably, conducting connecting part includes elastic slice and lug plate, is cooperated between elastic slice and drive end bearing bracket by boss and groove
It forms self-locking and matches detent, lug plate is connect with rear end cap.
Preferably, elastic slice with a thickness of 0.3mm~0.8mm.
Preferably, it is engaged by clamping between elastic slice and lug plate.
Preferably, elastic slice is provided with card slot far from one end of boss, and buckle is provided on lug plate, is caught in card slot
It is interior.
Preferably, the end of elastic slice is provided with bending piece, and card slot is arranged in bending on piece.
Preferably, it buckles as bending plate, bending plate extends towards card slot.
Preferably, the outer edge of bending piece is provided with the rib that limit is formed to buckle.
Preferably, lug plate further includes guide rail, and guide rail is set in outside bending piece, and a side of guide rail is arranged in buckle
On.
Preferably, the anti-electric arbor of motor bearings further includes insulating sheath, and insulating sheath is located at the company of elastic slice and lug plate
It connects at position, and is set in outside elastic slice and lug plate.
Preferably, the positive stop lug boss for compressing elastic slice is provided on insulating sheath.
Preferably, the anti-electric arbor of motor bearings further includes stator core, and caulking groove is provided on stator core, lug plate
End is embedded in stator core.
According to another aspect of the present invention, a kind of stator is provided, including the above-mentioned anti-electric arbor of motor bearings.
In accordance with a further aspect of the present invention, a kind of motor is provided, including the above-mentioned anti-electric arbor of motor bearings.
The anti-electric arbor of motor bearings provided by the invention, including drive end bearing bracket, rear end cap and be connected to drive end bearing bracket and after
Conducting connecting part between end cap cooperatively forms self-locking by boss and groove between one end and drive end bearing bracket of conducting connecting part
With detent.Between the drive end bearing bracket and conducting connecting part of the anti-electric arbor of the motor bearings boss and groove cooperation by way of shape
Match detent at self-locking, the bonding strength and connection reliability between drive end bearing bracket and conducting connecting part can be enhanced, guarantees motor
Bearing electric corrosion prevention function, while the EMC performance of motor can be improved.
Detailed description of the invention
Fig. 1 is prior art plastic package brushless motor bearing electric corrosion prevention structural electromotor sectional view；
Fig. 2 is the motor bearings electric corrosion prevention structural electromotor sectional view of the embodiment of the present invention；
Fig. 3 is the explosive view of the anti-electric arbor of motor bearings of first embodiment of the invention；
Fig. 4 is the dismantling cross-sectional view of the anti-electric arbor of motor bearings of first embodiment of the invention；
Fig. 5 is the enlarged drawing at the L of Fig. 4；
Fig. 6 is the enlarged drawing at the M of Fig. 4；
Fig. 7 is the cross-sectional view of the anti-electric arbor of motor bearings of first embodiment of the invention；
Fig. 8 is the elastic slice of the anti-electric arbor of motor bearings of first embodiment of the invention and the matching chart of drive end bearing bracket；
Fig. 9 is the elastic slice of the anti-electric arbor of motor bearings of first embodiment of the invention and the matching chart of lug plate；
Figure 10 is the three-dimensional structure diagram of the elastic slice of the anti-electric arbor of motor bearings of first embodiment of the invention；
Figure 11 is the structural schematic diagram of the lug plate of the anti-electric arbor of motor bearings of first embodiment of the invention；
Figure 12 is the three-dimensional structure diagram of the insulating sheath of the anti-electric arbor of motor bearings of first embodiment of the invention；
Figure 13 is the schematic perspective view of the drive end bearing bracket of the anti-electric arbor of motor bearings of first embodiment of the invention；
Figure 14 is the cross-sectional view of the anti-electric arbor of motor bearings of second embodiment of the invention；
Figure 15 is the elastic slice of the anti-electric arbor of motor bearings of second embodiment of the invention and the matching chart of drive end bearing bracket；
Figure 16 is the elastic slice of the anti-electric arbor of motor bearings of second embodiment of the invention and the matching chart of lug plate；
Figure 17 is the three-dimensional structure diagram of the elastic slice of the anti-electric arbor of motor bearings of second embodiment of the invention；
Figure 18 is the three-dimensional structure diagram of the lug plate of the anti-electric arbor of motor bearings of second embodiment of the invention.
Appended drawing reference indicates are as follows:
1, drive end bearing bracket；2, rear end cap；3, boss；4, groove；5, cylindrical section；6, bulb section；7, billiard table；8, bevel edge section；9,
Elastic slice；10, lug plate；11, card slot；12, it buckles；13, bending piece；14, rib；15, guide rail；16, insulating sheath；17, it limits
Boss.
Specific embodiment
In conjunction with referring to fig. 2 to shown in Figure 18, according to an embodiment of the invention, the anti-electric arbor of motor bearings includes drive end bearing bracket
1, rear end cap 2 and the conducting connecting part being connected between drive end bearing bracket 1 and rear end cap 2, one end of conducting connecting part and drive end bearing bracket 1
Between self-locking cooperatively formed with detent by boss 3 and groove 4.
The side cooperated between the drive end bearing bracket 1 and conducting connecting part of the anti-electric arbor of the motor bearings by boss 3 and groove 4
Formula forms self-locking and matches detent, can enhance the bonding strength and connection reliability between drive end bearing bracket 1 and conducting connecting part, guarantees
The bearing electric corrosion prevention function of motor, while the EMC performance of motor can be improved.
Meanwhile by above-mentioned connection type, traditional anti-electric etching technique of plastic package brushless motor bearing can solve relatively
Complicated and conductive tape non-refractory, high humidity environment are easy to fall off and damage during transport, installation and operation, reliability
Low problem.
By using aforesaid way of the invention, the structure for changing motor is hardly needed, therefore can reduce and be transformed into
This, saves processing cost, easy to spread and realization.
This structural reliability is good, and drive end bearing bracket 1 is effectively ensured with rear end cap 2 and connect conducting, drops the voltage difference of front and back bearings
It is zero, galvanic corrosion can occurs to avoid bearing, structure is simple, safe and reliable, and processing technology is simple, promotion properties of product can be improved,
The structure can be conducive to carry out actual processing production and volume production application.
Preferably, one end of conducting connecting part is zigzag shape structure, is formed at least one side wall of zigzag shape structure
Boss 3 forms fluted 4 on drive end bearing bracket 1, and zigzag shape structural clamp is on drive end bearing bracket 1, and boss 3 is caught in groove 4.Several words
Shape structure is connected on two end faces of drive end bearing bracket 1, can make to form first layer clamping between conducting connecting part and drive end bearing bracket 1,
Boss 3 is caught in groove 4, can make between conducting connecting part and drive end bearing bracket 1 formed the second layer clamping, by conducting connecting part with
Boss 3 can be steadily pressed in groove 4 by the clamping engagement between drive end bearing bracket 1, be effectively prevented conducting connecting part with before
It is detached between end cap 1, improves the stability and reliability of connection structure between the two.
Groove 4 is through slot, and boss 3 is two, is separately positioned in the two side walls of zigzag shape structure, boss 3 is from through slot
Both ends be caught in through slot.By being caught in boss 3 from the two sides of through slot, installation difficulty, another aspect energy on the one hand can be reduced
It is enough that through slot is clamped from two sides, improve snap effect.
Boss 3 may be one, and be arranged on a side wall of zigzag shape structure, then from the side of groove 4
It snaps onto groove 4.
Boss 3 be include cylindrical section 5 and bulb section 6, bulb section 6 and cylindrical section 5 are caught in groove 4, cylindrical section 5 and groove
4 side wall surface cooperation.By cooperating forming face between cylindrical section 5 and groove 4, can be realized good between boss 3 and groove
Good cooperation avoids the side wall of bulb section 6 and groove 4 from being easy to skid off out of groove 4 due to the presence of guiding surface when cooperating
Problem is effectively prevented boss 3 and is detached from out of groove 4.The presence of bulb section 6 can play installation of the boss 3 in groove 4
Guiding role reduces boss 3 and is mounted on the resistance in groove 4, reduces installation difficulty of the boss 3 in groove 4, improves installation effect
Rate.
In addition, forming cricoid fit structure between boss 3 and the groove 4 of drive end bearing bracket 1, it is able to solve conventional motors bearing
The relatively complicated problem low with reliability of anti-electric etching technique, cooperation more fasten.
In another embodiment, boss 3 is billiard table 7, and groove 4 is cylindrical through slot, two sides of zigzag shape structure
Spacing between wall is hT, at drive end bearing bracket 1 and conducting connecting part cooperation position with a thickness of hD, the diameter of groove 4 is LK, boss 3
It is L with the diameter at 4 mated position of grooveT, the sphere diameter of boss 3 is R, and the central angle of boss 3 is θ, wherein
By the above-mentioned size relationship of restriction, the self-locking function between conducting connecting part and drive end bearing bracket 1 can not only be realized,
And can ensure easy for installation, it can guarantee cooperation intensity between the two.
Preferably, a side of zigzag shape structure is disposed with bevel edge section 8 from open end to 3 position of boss
And straight section, bevel edge section 8 are incremented by along the spacing between direction and another side far from boss 3.Bevel edge section 8 can be in front end
Lid 1 plays guiding role when being caught in the groove of zigzag shape structure, the cooperation reduced between drive end bearing bracket 1 and zigzag shape structure is difficult
Degree improves assembly efficiency.It, can after the straight section enables to drive end bearing bracket 1 to snap between the two side walls of zigzag shape structure
Stable clamping structure is formed, guarantees that self-locking cooperation is relatively reliable.
Preferably, bevel edge section 8 is 15 ° >=β >=5 ° relative to the tilt angle of straight section, can play effectively guiding and make
With.
Preferably, drive end bearing bracket 1 is above realized between multiple conducting connecting parts connect along circumferential direction.Along week on drive end bearing bracket 1
To when two grooves 4 are arranged, the center of two grooves 4 and the center of drive end bearing bracket 1 are located in a straight line, when edge on drive end bearing bracket 1
When three grooves 4 of circumferential setting, the line between the center of three grooves forms equilateral triangle.By making drive end bearing bracket 1 in circumferential direction
On direction between multiple conducting connecting parts formed be conductively connected, may further ensure that be conductively connected between front and rear cover can
It by property, and can be realized dual or multiple close-fitting detent, further increase the stability and reliability of connection structure.
In conjunction with to shown in Figure 13, first embodiment according to the present invention, conducting connecting part includes elastic slice 9 and connects referring to fig. 2
Line piece 10 cooperatively forms self-locking with detent, lug plate 10 and rear end by boss 3 and groove 4 between elastic slice 9 and drive end bearing bracket 1
Lid 2 connects.Conducting connecting part is divided into 10 two parts of elastic slice 9 and lug plate, is on the one hand convenient for adding conducting connecting part
On the other hand work can select different fit form and material according to different fit structures, can more easily realize
Conductive connection between conducting connecting part and drive end bearing bracket 1 and rear end cap 2.In addition, the elastic deformation ability of elastic slice 9, it can be more
Facilitate the clamping engagement between realization and drive end bearing bracket 1.
Elastic slice 9 with a thickness of 0.3mm~0.8mm, can either avoid the thickness of elastic slice 9 is excessive from causing deformability insufficient,
The assembly difficulty between elastic slice 9 and drive end bearing bracket 1 is increased, and can guarantee that elastic slice 9 has enough structural strengths, with lug plate 10
Good cooperation is realized between drive end bearing bracket 1.
Preferably, it is engaged by clamping between elastic slice 9 and lug plate 10, may not need and can be realized as matching for the two by tool
It closes, fit structure is simpler, and compounding practice is more convenient.
In the present embodiment, elastic slice 9 is provided with card slot 11 far from one end of boss 3, and buckle 12 is provided on lug plate 10,
Buckle 12 is caught in card slot 11.
Preferably, the end of elastic slice 9 is provided with bending piece 13, and card slot 11 is arranged on bending piece 13.By the way that bending is arranged
Piece 13 can change the structure type of card slot 11, so as to which the structure of card slot 11 is arranged according to the structure type of buckle 12
Form, more convenient clamping engagement realized between buckle 12 and card slot 11 reduce cooperation difficulty.
Buckle 12 is bending plate, and bending plate extends towards card slot 11.The bending plate extends towards card slot 11, therefore works as and need reality
When now buckling the clamping engagement between 12 and card slot 11, it is only necessary to lug plate 10 is pressed, so that buckle 12 is pushed towards card slot 11,
And it is caught in card slot 11.
Preferably, the outer edge of bending piece 13 is provided with the rib 14 that limit is formed to buckle 12.The rib 14 and bending
It is formed with caulking groove between the outer edge of piece 13, when the buckle 12 of lug plate 10 snaps onto card slot 11, lug plate 10 can be embedding
Enter in the caulking groove, backstop action is formed by rib 14, so that forming good cooperation between elastic slice 9 and lug plate 10.
The anti-electric arbor of motor bearings further includes insulating sheath 16, and insulating sheath 16 is located at the company of elastic slice 9 and lug plate 10
It connects at position, and is set in outside elastic slice 9 and lug plate 10.Insulating sheath 16 is arranged on winding skeleton, on the one hand can be bullet
The installation of piece 9 and lug plate 10 provides installation foundation, guarantees the stability and reliability of the two connection structure, on the other hand can
Insulation protection is formed to elastic slice 9 and lug plate 10.
The positive stop lug boss 17 for compressing elastic slice 9 is provided on insulating sheath 16.It can be to elastic slice 9 by the positive stop lug boss
Installation in insulating sheath 16 forms limit, guarantees the assembly effect between elastic slice 9 and lug plate 10, and make between the two
Easy for installation and cooperation it is reliable.
Preferably, the anti-electric arbor of motor bearings further includes stator core, and caulking groove, lug plate 10 are provided on stator core
End insertion stator core in so that lug plate 10 is deep into stator core, increase cooperation intensity.
In conjunction with referring to shown in Figure 14 to 18, second embodiment according to the present invention, the difference with first embodiment
It is, in the present embodiment, lug plate 10 further includes guide rail 15, and guide rail 15 is set in outside bending piece 13, and 12 setting of buckle is being led
On one side of rail 15.Guide rail herein is, for example, U-shaped.
In the present embodiment, lug plate 10 is caught on bending piece 13 by guide rail 15 from side wall, and buckle 12 is caught in
In card slot 11 on to bending piece 13, the clamping engagement of the two is realized.Cooperation and buckle by guide rail 15 and bending piece 13
12 with the cooperation of card slot 11, enable to realize dual close-fitting detent between elastic slice 9 and lug plate 10, not only easily facilitate peace
Dress, and self-locking cooperation easy to accomplish.
In the present embodiment, multiple boss 3 are provided on a side wall of zigzag shape structure, are provided on drive end bearing bracket 1 more
A groove 4.
When carrying out the assembly of the above-mentioned anti-electric arbor of motor bearings, pass through the zigzag shape structure card on elastic slice 9 first
Enter onto drive end bearing bracket 1, and the boss 3 in zigzag shape structure is snapped onto the groove 4 of drive end bearing bracket 1, then by lug plate 10
On buckle 12 snap onto the card slot 11 on elastic slice 9, realize the clamping engagement between elastic slice 9 and lug plate 10, later will be exhausted
Edge sheath 16 is set at the link position of elastic slice 9 and lug plate 10, is fixed by the positive stop lug boss 17 on insulating sheath 16
Then rotor assembly is pressed into field frame assembly, and rear end cap 2 is buckled into field frame assembly by elastic slice 9, last injection moulded stator assembly
On, so that rear end cap 2 and lug plate 10 are realized and are connected.
According to an embodiment of the invention, stator includes the anti-electric arbor of above-mentioned motor bearings.
According to an embodiment of the invention, motor includes the anti-electric arbor of above-mentioned motor bearings.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (22)
1. a kind of anti-electric arbor of motor bearings, which is characterized in that including drive end bearing bracket (1), rear end cap (2) and be connected to described
Conducting connecting part between drive end bearing bracket (1) and rear end cap (2), between one end of the conducting connecting part and the drive end bearing bracket (1)
Self-locking is cooperatively formed with detent by boss (3) and groove (4).
2. the anti-electric arbor of motor bearings according to claim 1, which is characterized in that one end of the conducting connecting part is
Zigzag shape structure is formed with the boss (3) at least one side wall of the zigzag shape structure, shape on the drive end bearing bracket (1)
At having the groove (4), the zigzag shape structural clamp is on the drive end bearing bracket (1), and the boss (3) is caught in the groove
(4) in.
3. the anti-electric arbor of motor bearings according to claim 2, which is characterized in that the groove (4) is through slot, described
Boss (3) is two, is separately positioned in the two side walls of the zigzag shape structure, and the boss (3) is from the two of the through slot
End is caught in the through slot.
4. the anti-electric arbor of motor bearings according to claim 2, which is characterized in that the boss (3) be include cylinder
Section (5) and bulb section (6), the bulb section (6) and the cylindrical section (5) are caught in the groove (4), the cylindrical section (5)
Cooperate with the side wall surface of the groove (4).
5. the anti-electric arbor of motor bearings according to claim 2, which is characterized in that the boss (3) is billiard table (7),
The groove (4) is cylindrical through slot, and the spacing between the two side walls of the zigzag shape structure is hT, the drive end bearing bracket (1)
With at the conducting connecting part cooperation position with a thickness of hD, the diameter of the groove (4) is LK, the boss (3) with it is described recessed
Diameter at slot (4) mated position is LT, the sphere diameter of the boss (3) is R, and the central angle of the boss (3) is θ, wherein
6. the anti-electric arbor of motor bearings according to claim 2, which is characterized in that a side of the zigzag shape structure
While position is disposed with bevel edge section (8) and straight section, bevel edge section (8) edge from open end to the boss (3)
Far from the boss (3) direction and another side between spacing be incremented by.
7. the anti-electric arbor of motor bearings according to claim 6, which is characterized in that the bevel edge section (8) is relative to institute
The tilt angle for stating straight section is 15 ° >=β >=5 °.
8. the anti-electric arbor of motor bearings according to claim 2, which is characterized in that a side of the zigzag shape structure
It is provided with multiple boss (3) on wall, multiple grooves (4) are provided on the drive end bearing bracket (1).
9. the anti-electric arbor of motor bearings according to claim 2, which is characterized in that the drive end bearing bracket (1) is circumferentially square
Connection is realized between multiple conducting connecting parts upwards.
10. the anti-electric arbor of motor bearings according to any one of claim 1 to 9, which is characterized in that the conduction is even
Fitting includes elastic slice (9) and lug plate (10), passes through boss (3) and groove between the elastic slice (9) and the drive end bearing bracket (1)
(4) self-locking is cooperatively formed with detent, and the lug plate (10) connect with the rear end cap (2).
11. the anti-electric arbor of motor bearings according to claim 10, which is characterized in that the elastic slice (9) with a thickness of
0.3mm~0.8mm.
12. the anti-electric arbor of motor bearings according to claim 10, which is characterized in that the elastic slice (9) and described connect
Line piece is engaged by clamping between (10).
13. the anti-electric arbor of motor bearings according to claim 12, which is characterized in that the elastic slice (9) is far from described
One end of boss (3) is provided with card slot (11), is provided with buckle (12) on the lug plate (10), and the buckle (12) is caught in institute
It states in card slot (11).
14. the anti-electric arbor of motor bearings according to claim 13, which is characterized in that the end of the elastic slice (9) is set
It is equipped with bending piece (13), the card slot (11) is arranged on the bending piece (13).
15. the anti-electric arbor of motor bearings according to claim 13, which is characterized in that the buckle (12) is bending
Plate, the bending plate extend towards the card slot (11).
16. the anti-electric arbor of motor bearings according to claim 14, which is characterized in that the outside of the bending piece (13)
Edge is provided with the rib (14) that limit is formed to the buckle (12).
17. the anti-electric arbor of motor bearings according to claim 14, which is characterized in that the lug plate (10) further includes
Guide rail (15), the guide rail (15) are set in the bending piece (13) outside, and the buckle (12) is arranged in the guide rail (15)
On one side.
18. the anti-electric arbor of motor bearings according to claim 10, which is characterized in that the motor bearings electric corrosion prevention knot
Structure further includes insulating sheath (16), and the insulating sheath (16) is located at the connection position of the elastic slice (9) and the lug plate (10)
Place is set, and is set in the elastic slice (9) and the lug plate (10) outside.
19. the anti-electric arbor of motor bearings according to claim 18, which is characterized in that set on the insulating sheath (16)
It is equipped with the positive stop lug boss (17) for compressing the elastic slice (9).
20. the anti-electric arbor of motor bearings according to claim 10, which is characterized in that the motor bearings electric corrosion prevention knot
Structure further includes stator core, and caulking groove is provided on the stator core, and the end of the lug plate (10) is embedded in the stator iron
In-core.
21. a kind of stator, which is characterized in that including the anti-electric arbor of motor bearings described in any one of claim 120.
22. a kind of motor, which is characterized in that including the anti-electric arbor of motor bearings described in any one of claims 1 to 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069219.1A CN109038959B (en) | 2018-09-13 | 2018-09-13 | Electric erosion preventing structure of motor bearing, stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811069219.1A CN109038959B (en) | 2018-09-13 | 2018-09-13 | Electric erosion preventing structure of motor bearing, stator and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109038959A true CN109038959A (en) | 2018-12-18 |
| CN109038959B CN109038959B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811069219.1A Active CN109038959B (en) | 2018-09-13 | 2018-09-13 | Electric erosion preventing structure of motor bearing, stator and motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN109038959B (en) |
Cited By (1)
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| CN111835105A (en) * | 2019-04-18 | 2020-10-27 | 佛山市威灵洗涤电机制造有限公司 | Stator module and motor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109038959B (en) | 2023-11-28 |
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