CN117060632B - Brush structure for an electric machine - Google Patents
Brush structure for an electric machine Download PDFInfo
- Publication number
- CN117060632B CN117060632B CN202311287336.6A CN202311287336A CN117060632B CN 117060632 B CN117060632 B CN 117060632B CN 202311287336 A CN202311287336 A CN 202311287336A CN 117060632 B CN117060632 B CN 117060632B
- Authority
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- China
- Prior art keywords
- brush
- motor
- frame body
- reed
- bending section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 52
- 238000005452 bending Methods 0.000 claims abstract description 49
- 238000003801 milling Methods 0.000 claims abstract description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000007747 plating Methods 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 229910000906 Bronze Inorganic materials 0.000 claims description 4
- 229910052790 beryllium Inorganic materials 0.000 claims description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010974 bronze Substances 0.000 claims description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 244000273256 Phragmites communis Species 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/26—Solid sliding contacts, e.g. carbon brush
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/36—Connections of cable or wire to brush
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/381—Brush holders characterised by the application of pressure to brush
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the technical field of motors, in particular to a brush structure for a motor. The brush structure for an electric motor of the present invention includes: the frame body is annular, the stator of the motor is arranged on the outer side of the frame body, the rotor of the motor is arranged on the inner side of the frame body, and milling grooves are formed in the inner side of the frame body; the electric brush reed is arranged in the milling groove and comprises a connecting section, a first bending section, a second bending section and a first connecting section, wherein one end of the first bending section is connected with the end part of the connecting section, and the other end of the second bending section is connected with the first bending section; the electric brush block is connected to the second bending section and is in touch connection with the rotor; the outgoing line is fixed on the connecting section and penetrates through the frame body; the second bending section has the length of. The invention solves the technical problem of poor contact between the brush and the commutator segment in the traditional motor, and improves the working efficiency of the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a brush structure for a motor.
Background
Compared with other motors, the direct current motor adopts the electric brush to mechanically commutate, and has the characteristics of good mechanical property, high operability and the like. In the field of precise control, the requirements on the contact reliability of the brush block and the rotor are extremely strict, and meanwhile, the brush is required to have stronger strength to adapt to environmental tests under different conditions.
Poor contact phenomenon often occurs between the brush block and the rotor of the existing motor, and normal use of the motor is affected.
Disclosure of Invention
The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the invention provides the brush structure for the motor, which solves the technical problem of poor contact between the brush and the commutator bar in the traditional motor and improves the working efficiency of the motor.
The present invention provides a brush structure for an electric motor, comprising: the frame body is annular, the stator of the motor is arranged on the outer side of the frame body, the rotor of the motor is arranged on the inner side of the frame body, and milling grooves are formed in the inner side of the frame body; the electric brush reed is arranged in the milling groove and comprises a first bending section, a connecting section and a second bending section which are sequentially connected; the electric brush block is connected to the second bending section and is in touch connection with the rotor; the outgoing line is fixed on the connecting section and penetrates through the frame body; the length of the second bending section isWherein->For the length of the second bending section, < >>For adjusting the coefficient, the adjusting coefficient is equal to the motorCorresponding to the outer diameter of>For the length of the brush block, +.>Is the thickness of the brush reed.
The brush structure for the motor is further improved in that the frame body is provided with the counter bore, and the outgoing line correspondingly penetrates through the counter bore.
The brush structure for the motor is further improved by further comprising an outgoing line gasket arranged in the counter bore, and the outgoing line penetrates through the outgoing line gasket.
The invention further improves the brush structure for the motor, which comprises a brush gasket arranged on the connecting section and corresponding to the side surface of the outgoing line gasket and an adhesive layer for bonding the brush gasket and the outgoing line gasket.
The invention further improves the brush structure for the motor, wherein the side part of the brush reed corresponding to the brush block is provided with a clamping part, and the end part of the brush reed is provided with an ear part.
The brush structure for the motor is further improved by further comprising a first silver plating layer arranged on the side face of the brush reed.
The brush structure for the motor is further improved in that the brush structure further comprises a second silver plating layer arranged on the side face of the brush block.
The invention further improves the brush structure for the motor, wherein two brush reeds are symmetrically arranged.
A further improvement of the brush structure for an electric motor according to the present invention is that the brush reed is made of beryllium bronze material, and the brush reed is made by press molding.
A further improvement of the brush structure for an electric motor of the present invention is that the frame body is made of an epoxy resin hard laminate.
According to the electric brush reed for the electric brush structure of the motor, the second bending part is arranged and is adjusted according to the electric brush size of the motor, so that the electric brush block arranged on the second bending part can always correspond to the motor, the contact stability of the electric brush block and the rotor is improved, the motor is prevented from being failed due to poor contact between the electric brush block and the rotor, and the working efficiency of the motor is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a brush structure for an electric motor provided by the present invention.
Fig. 2 is a schematic view of a brush reed and a brush block in a brush structure for an electric motor provided by the present invention.
Fig. 3 is a schematic view of a brush reed in a brush structure for an electric motor provided by the present invention.
FIG. 4 is a line graph of the measurement of the adjustment coefficient for a motor of the present invention having an outer diameter of 30 mm.
FIG. 5 is a line graph of the measurement of the adjustment coefficient for a motor of the present invention having an outer diameter of 50 mm.
FIG. 6 is a line graph of the measurement of the adjustment coefficient for a motor of the present invention having an outer diameter of 60 mm.
FIG. 7 is a line graph of the measurement of the adjustment coefficient for an outer diameter of 80mm for the motor of the present invention.
Fig. 8 is a line graph of the relationship between the outer diameter of the motor and the adjustment coefficient of the present invention.
Reference numerals:
1. a frame body; 11. countersink; 12. a lead-out wire gasket;
2. brush reed; 21. a connection section; 22. a first bending section; 23. a second bending section; 24. a clamping part; 25. an ear; 26. a brush spacer;
3. a brush block;
4. and (5) leading out wires.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; may be mechanically coupled, directly coupled, or indirectly coupled via an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The present invention, which is described below in conjunction with fig. 1, provides a brush structure for an electric motor, including:
the frame body 1 is annular, a stator of the motor is arranged on the outer side of the frame body 1, a rotor of the motor is arranged on the inner side of the frame body 1, and a milling groove is formed in the inner side of the frame body 1;
the electric brush reed 2 is arranged in the milling groove, and the electric brush reed 2 comprises a first bending section 22, a connecting section 21 and a second bending section 23 which are connected in sequence;
the electric brush block 3, the electric brush block 3 is connected to the second bending section 23, the electric brush block 3 is used for being connected with the rotor in a touch control manner;
the outgoing line 4, the outgoing line 4 is fixed to the connecting section 21 and penetrates through the frame body 1;
the second bending section 23 has a length ofWherein->For the length of the second bending section 23, +.>For adjusting the coefficient, the adjusting coefficient corresponds to the outer diameter of the motor,/->For the length of the brush block 3 +.>Is the thickness of the brush reed 2.
Preferably, as shown in figure 2,is->The value range is any value between 1.3 and 1.6, the value is correspondingly adjusted according to the outer diameter size of the motor, and the outer diameter size range of the motor is 30mm to 80mm.
In particular, the method comprises the steps of,the method is characterized in that the method is obtained by confirming the products after directional value optimization in the actual development process, and the specific conditions are as follows:
motors with the outer diameters of 30mm, 50mm, 60mm and 80mm are respectively selected as experimental objects, and the thickness of the brush reed is equal to that of the motorThe electric brush is made of silver graphite with the thickness of 0.15mm and the electric brush block is made of silver graphite with the same material, and the length of the electric brush block is changed on the basis of ensuring the same key indexes (static friction moment and starting voltage) of the product on the basis of the consistent product model and structure type>And the length of the second bending section +.>Further, the adjustment coefficients under different outer diameters are confirmed, and specific measurement cases are as follows:
case one
The outer diameter of the selected motor is 30mm, and the thickness of the brush reed is as follows0.15mm, a static friction torque of 25gcm, a starting voltage of 0.6V, and a brush changedLength of block->And the length of the second bending section +.>The measurement data are shown in Table one:
measuring data corresponding to the outer diameter of the surface motor of 30mm
As shown in FIG. 4, a line graph is formed by fitting the measurement data in Table I, and the formula corresponding to the line graph in FIG. 4 is=1.3076/>+0.15, it is known that the adjustment coefficient +.>1.3.
Case two
The outer diameter of the selected motor is 50mm, and the thickness of the brush reed is as follows0.15mm, a static friction torque of 32gcm, a starting voltage of 0.8V, and further changing the length of the brush block>And the length of the second bending section +.>The measurement data are shown in Table II:
measuring data corresponding to 50mm of outer diameter of the second motor
As shown in FIG. 5, a line graph is formed by fitting the measurement data in Table II, and the formula corresponding to the line graph in FIG. 5 is=1.4079/>+0.15, it is known that the adjustment coefficient +.>1.4.
Case three
The outer diameter of the selected motor is 60mm, and the thickness of the brush reed is as follows0.15mm, a static friction moment of 35gcm, a starting voltage of 0.9V, and further changing the length of the brush block>And the length of the second bending section +.>The measurement data are shown in Table III:
measuring data corresponding to the outer diameter of 60mm of the three-motor
As shown in FIG. 6, a line graph is formed by fitting the measurement data in Table III, and the formula corresponding to the line graph in FIG. 6 is=1.4669/>+0.15, it is known that the adjustment coefficient +.>1.5.
Case four
The outer diameter of the selected motor is 80mm, and the thickness of the brush reed is equal to0.15mm, a static friction torque of 42gcm, a starting voltage of 1.2V, and a length of the brush block is changed>And the length of the second bending section +.>The measurement data are shown in table four:
measuring data corresponding to 80mm of outer diameter of four-motor
As shown in FIG. 7, a line graph is formed by fitting the measurement data in Table IV, and the formula corresponding to the line graph in FIG. 7 is=1.5908/>+0.15, it is known that the adjustment coefficient +.>1.6.
Further, as shown in FIG. 8, the outer diameter and the adjustment coefficient of the motor are adjusted according to the cases one to fourForm a line graph, and the formula corresponding to the line in FIG. 8 is +.>=0.0062x+1.1115, where x is the outer diameter of the motor, +.>For the adjustment of the coefficients, the corresponding adjustment coefficients for the outer diameter dimensions of the other motors can be determined in practice.
Preferably, the total length of the brush reed 2 is correspondingly adjusted according to the outer diameter of the motor, and the requirements of brush reeds 2 of different types of brush motors are met by changing the size of the brush reed 2 and the angle between the first bending section 22 and the second bending section 23.
In a preferred embodiment of the brush structure for a motor, as shown in fig. 1, a counter bore 11 is formed on a frame body 1, and an outgoing line 4 correspondingly penetrates through the counter bore 11.
Preferably, the counter bore 11 is a circular hole, and the aperture of the counter bore 11 is larger than the size of the outgoing line 4.
Specifically, as shown in fig. 1, the device further comprises an outgoing line gasket 12 arranged in the counter bore 11, and the outgoing line 4 is arranged through the outgoing line gasket 12.
Preferably, the lead wire 4 is arranged on the lead wire gasket 12 in a penetrating way, so that the stability of the lead wire 4 is improved, the lead wire 4 is prevented from rotating or bending in the counter bore 11, the abrasion of the lead wire 4 is avoided, the position of the brush reed 2 is prevented from being influenced by the bending or rotation of the lead wire 4, and the installation accuracy of the brush reed 2 is improved.
Further, as shown in fig. 1, the brush-holder assembly further includes a brush-holder 26 provided on the connection section 21 and corresponding to the side surface of the lead-out wire holder 12, and an adhesive layer for bonding the brush-holder 26 and the lead-out wire holder 12.
Preferably, the brush pad 26 is fixed on the outgoing line pad 12 through an adhesive layer, so that dislocation of the brush reed 2 in the installation process is avoided, and the installation accuracy of the brush reed 2 is improved.
Further, as shown in fig. 2 and 3, the brush reed 2 is provided with a catching portion 24 on the side portion corresponding to the brush block 3, and the end portion of the brush reed 2 is provided with an ear portion 25.
Preferably, after the brush block 3 is mounted on the second bending portion, the clamping portion 24 is bent to clamp the brush block 3 and the lug 25 is bent to be close to the brush block 3, so that the connection stability of the brush block 3 and the second bending portion is improved.
Preferably, the length of the clamping portion 24 is smaller than the length of the brush block 3, and the width of the clamping portion 24 is smaller than the thickness of the brush block 3.
Specifically, the angle between the first bending section 22 and the connecting section 21 and the angle between the first bending section 22 and the second bending section 23 are correspondingly adjusted according to the inner diameter of the frame body 1.
Preferably, the length of the connecting section 21 is correspondingly adjusted according to the inner diameter of the frame body 1 and the aperture of the counter bore 11.
Preferably, the length of the connecting section 21 is greater than the bore diameter of the counterbore 11.
Further, the brush reed 2 further comprises a first silver plating layer arranged on the side surface of the brush reed.
Further, a second silver plating layer is provided on the side surface of the brush block 3.
Further, the brush reed 2 is symmetrically provided with two.
Further, the brush reed 2 is made of beryllium bronze material, and the brush reed 2 is made by press forming.
Further, the frame body 1 is made of an epoxy resin hard laminate.
Further, the brush block 3 is made of a silver graphite material.
In one embodiment of the brush structure for an electric motor of the present invention,
the electric brush reed 2 is manufactured by stamping the beryllium bronze material according to the size of the motor, and the sizes of the connecting section 21, the first bending section 22 and the second bending section 23 in the electric brush reed 2 are designed;
electroplating the brush reed 2 and the brush block 3 to form a first silver plating layer on the side surface of the brush reed 2 and a second silver plating layer on the side surface of the brush block 3;
fixing the brush block 3 to the second bending section 23 by soldering;
fixing the lead wire 4 to the connection section 21 using a soldering method;
the frame body 1 is horizontally placed on an assembly platform, the brush reed 2 is placed in a milling groove of the frame body 1, the brush gasket 26 is fixed on the side part of the connecting section 21, which is close to the milling groove, so that the brush reed 2 is radially matched with the frame body 1, the outgoing line gasket 12 is fixed in the counter bore 11, the outgoing line 4 is fixedly arranged in the outgoing line gasket 12 in a penetrating way, the brush gasket 26 and the outgoing line gasket 12 are bonded by using adhesive, and an adhesive layer is formed after the adhesive is solidified so as to install and finish the brush structure.
According to the electric brush reed 2 for the electric brush mechanism of the motor, the second bending part is arranged, and the second bending part is adjusted according to the electric brush size of the motor, so that the electric brush block 3 arranged at the second bending part can always correspond to the motor, the contact stability of the electric brush block 3 and the rotor is improved, the influence of the elastic stability of the electric brush reed 2 on the electric brush reed 2 caused by manual bending can be reduced, the strength and the reliability of the electric brush reed 2 are improved, and therefore the motor is prevented from being failed due to poor contact between the electric brush block 3 and the rotor, and the working efficiency of the motor is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A brush structure for an electric motor, comprising:
the frame body is annular, a motor stator is arranged on the outer side of the frame body, a motor rotor is arranged on the inner side of the frame body, and a milling groove is formed in the inner side of the frame body;
the electric brush reed is arranged in the milling groove and comprises a connecting section, a first bending section and a second bending section which are sequentially connected, wherein the two first bending sections are symmetrically arranged along the vertical direction of the connecting section, and the two second bending sections are symmetrically arranged along the vertical direction of the connecting section;
the electric brush block is connected to the second bending section and is in touch connection with the rotor;
the outgoing line is fixed on the connecting section and penetrates through the frame body;
the length of the second bending section isWherein->For the length of the second bending section, < >>For the adjustment factor, which corresponds to the outer diameter size of the motor, +.>For the length of the brush block, +.>The thickness of the brush reed, wherein the corresponding relation between the adjustment coefficient and the outer diameter of the motor is +.>=0.0062x+1.1115, where x is the outer diameter of the motor, +.>To adjust the coefficients.
2. The brush structure for a motor according to claim 1, wherein the frame body is provided with a counter bore, and the lead wire is correspondingly arranged through the counter bore.
3. The brush structure for an electric motor as set forth in claim 2, further comprising an outgoing line pad disposed in said counterbore, said outgoing line passing through said outgoing line pad.
4. A brush structure for an electric motor as set forth in claim 3, further comprising a brush-holder provided to the connection section and corresponding to a side face of the lead-out wire holder, and an adhesive layer for bonding the brush-holder and the lead-out wire holder.
5. The brush structure for an electric motor according to claim 1, wherein the brush reed is provided with a catching portion at a side portion thereof corresponding to the brush block, and an ear portion is provided at an end portion thereof.
6. The brush structure for an electric motor of claim 1, further comprising a first silver coating layer disposed on a side of the brush reed.
7. The brush structure for an electric motor of claim 1, further comprising a second silver plating layer disposed on a side of the brush block.
8. The brush structure for an electric motor according to claim 1, wherein the brush reed is symmetrically provided with two.
9. The brush structure for an electric motor according to claim 1, wherein the brush reed is made of beryllium bronze material, and the brush reed is made by press molding.
10. The brush structure for an electric motor as recited in claim 1, wherein the frame body is made of an epoxy resin hard laminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311287336.6A CN117060632B (en) | 2023-10-08 | 2023-10-08 | Brush structure for an electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311287336.6A CN117060632B (en) | 2023-10-08 | 2023-10-08 | Brush structure for an electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117060632A CN117060632A (en) | 2023-11-14 |
| CN117060632B true CN117060632B (en) | 2023-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311287336.6A Active CN117060632B (en) | 2023-10-08 | 2023-10-08 | Brush structure for an electric machine |
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| Country | Link |
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| CN (1) | CN117060632B (en) |
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| CN117060632A (en) | 2023-11-14 |
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