CN220673506U - Casing assembly capable of improving strength of hollow cup motor - Google Patents
Casing assembly capable of improving strength of hollow cup motor Download PDFInfo
- Publication number
- CN220673506U CN220673506U CN202322322686.3U CN202322322686U CN220673506U CN 220673506 U CN220673506 U CN 220673506U CN 202322322686 U CN202322322686 U CN 202322322686U CN 220673506 U CN220673506 U CN 220673506U
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- Prior art keywords
- rear cover
- brush
- plastic
- metal
- cover
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- 239000002184 metal Substances 0.000 claims abstract description 64
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a shell component capable of improving the strength of a hollow cup motor, which comprises a shell and a rear cover component, wherein the rear cover component comprises an end cover and two groups of steering components, the end cover comprises a metal rear cover and a plastic rear cover, and the metal rear cover is welded with the shell; each group of steering components comprises an electric brush fixing column, an electric brush, a conductive terminal, a brush braid, a torsion spring and a lead wire, wherein the torsion spring is arranged on the electric brush fixing column in a penetrating mode, the electric brush is rotatably arranged on the electric brush fixing column, the electric brush and the plastic rear cover are matched to clamp the torsion spring, one end of the torsion spring is arranged on the plastic rear cover, the other end of the torsion spring is arranged on the electric brush, the conductive terminal is arranged on the plastic rear cover, the electric brush is connected with the conductive terminal through the brush braid, the lead wire is arranged on the conductive terminal, and the lead wire penetrates through the plastic rear cover and the metal rear cover. The end cover adopts the metal rear cover and the plastic rear cover, the metal rear cover can improve the strength, and the metal rear cover is welded with the shell, so that the integral strength can be improved, and the outer impact lower end cover is prevented from falling off from the shell.
Description
Technical Field
The utility model belongs to the field of hollow cup motors, and particularly relates to a shell component capable of improving strength of a hollow cup motor.
Background
The hollow cup motor has the outstanding characteristics of high energy conversion efficiency, quick start and brake, stable and reliable operation, small rotation speed fluctuation and the like, and is widely applied to the fields of military, aerospace, civil electrical appliances, industrial products and the like, so that the strength of the hollow cup motor is improved.
At present, a rear cover of the hollow cup motor is generally made of plastic materials, when the plastic rear cover and the shell are fixed, only riveting and other modes can be adopted, and the hollow cup motor in the riveting mode easily drops off at the riveting position when being beaten and collided, so that the rear cover is separated from the shell, the strength of the existing hollow cup motor is insufficient, and the hollow cup motor cannot be used in high-strength equipment.
Disclosure of Invention
In order to meet the above defects or improvement demands of the prior art, the utility model provides a shell component capable of improving the strength of a hollow cup motor, which adopts a metal rear cover and a plastic rear cover arranged in the metal rear cover, wherein the metal rear cover improves the strength of the hollow cup motor, a reversing component can be conveniently arranged on the plastic rear cover, and the metal rear cover and a shell are welded together, so that the integral strength of the hollow cup motor is improved.
In order to achieve the above object, according to one aspect of the present utility model, there is provided a shell assembly for improving strength of a coreless motor, comprising a housing and a rear cover assembly, the rear cover assembly comprising an end cover and two sets of steering assemblies, wherein:
the end cover comprises a metal rear cover and a plastic rear cover, wherein the metal rear cover is provided with an inner cavity, the plastic rear cover stretches into the inner cavity of the metal rear cover, the plastic rear cover is fixedly connected with the metal rear cover, and the metal rear cover is connected with one end of the shell in a welding mode;
for each group of reversing components, the reversing component comprises a brush fixing column, a brush, a conductive terminal, a brush braid, a torsion spring and a lead wire, wherein the brush fixing column is arranged on the plastic rear cover, the torsion spring is arranged on the brush fixing column in a penetrating mode, the brush is rotatably arranged on the brush fixing column, the brush and the plastic rear cover are matched and clamped with the torsion spring, one end of the torsion spring is arranged on the plastic rear cover, the other end of the torsion spring is arranged on the brush so as to apply elastic force to enable the brush to be in contact with the reverser, the conductive terminal is arranged on the plastic rear cover, the brush is connected with the conductive terminal through the brush braid, the lead wire is arranged on the conductive terminal, and one end of the lead wire sequentially penetrates through the plastic rear cover and the metal rear cover.
Preferably, the metal rear cover is connected with one end of the housing by means of laser welding.
Preferably, the plastic rear cover does not extend beyond the inner cavity of the metal rear cover.
Preferably, a spacer is provided between the brush and the torsion spring.
Preferably, the plastic rear cover is provided with a plurality of connecting columns, each connecting column is a T-shaped column, and the plastic rear cover and the metal rear cover are connected together through the connecting columns.
Preferably, each set of the reversing assembly further comprises a terminal fixing post, the terminal fixing post is mounted on the plastic rear cover, and the terminal is mounted on the plastic rear cover through the terminal fixing post.
Preferably, slots are respectively arranged on the plastic rear cover and the electric brush, one end of the torsion spring stretches into the slots of the plastic rear cover, and the other end stretches into the slots of the electric brush.
Preferably, the metal rear cover is provided with a bearing for penetrating the motor shaft.
Preferably, an outer protective sleeve is further included, the outer protective sleeve wraps around the metal back cover, and the outer protective sleeve shields a weld between the metal back cover and the housing.
Preferably, the brush is rotatably mounted on the brush fixing post by a positioning pin.
In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:
1) According to the shell component capable of improving the strength of the hollow cup motor, the end cover adopts the metal rear cover and the plastic rear cover, and the metal rear cover improves the strength of the hollow cup motor; in addition, the metal rear cover is welded with the shell of the hollow cup motor, so that the integral connection strength of the end cover and the hollow cup motor can be improved, and the end cover is prevented from falling off from the shell under external impact to influence the normal use of the hollow cup motor.
2) According to the shell component capable of improving the strength of the hollow cup motor, after the metal rear cover is added on the plastic rear cover, the installation of all parts of the reversing component is not affected, and the installation and connection of all parts of the reversing component are very convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a bottom view of the present utility model;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic illustration of the present utility model with the outer protective sheath and one brush removed;
FIG. 5 is a schematic illustration of the present utility model with the outer protective sheath, a brush and a locating pin removed;
FIG. 6 is a schematic view of a plastic back cover according to the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Referring to fig. 1-6, a housing assembly for improving the strength of a coreless motor includes a housing 12 and a rear cover assembly including an end cap and two sets of steering assemblies, wherein:
the end cover comprises a metal rear cover 1 and a plastic rear cover 2, wherein the metal rear cover 1 is provided with an inner cavity, the plastic rear cover 2 stretches into the inner cavity of the metal rear cover 1, and the plastic rear cover 2 is fixedly connected with the metal rear cover 1; according to the end cover disclosed by the utility model, the metal rear cover 1 is sleeved on the plastic rear cover 2, so that the strength of the end cover of the hollow cup motor is obviously improved, and the strength of the hollow cup motor is improved. The metal rear cover 1 adopts weldable metal and is connected with one end of the shell 12 in a welding mode, so that the strength of a shell component can be improved, the reliability of the hollow cup motor is ensured under a severe application environment, and the hollow cup motor can bear larger pressure without failure. The metal back cover 1 and the housing 12 are preferably connected by means of laser welding. The plastic rear cover 2 does not exceed the inner cavity of the metal rear cover 1, namely, the part of the plastic rear cover 2 in the inner cavity of the metal rear cover 1 does not exceed the metal rear cover 1, and the plastic rear cover 2 is wholly arranged in the metal rear cover 1 and is wrapped by the metal rear cover 1, so that the metal rear cover 1 can carry out omnibearing protection on the plastic rear cover 2. The metal rear cover 1 is provided with a reserved mounting hole 10, so that the hollow cup motor can be mounted on an external mounting platform.
For each group of reversing components, the reversing component comprises a brush fixing column 11, a brush 3, a conductive terminal 5, a brush braid 31, a torsion spring 4 and a lead 6, wherein the brush fixing column 11 is arranged on the plastic rear cover 2, the torsion spring 4 is arranged on the brush fixing column 11 in a penetrating mode, the brush 3 is rotatably arranged on the brush fixing column 11, the brush 3 is preferably rotatably arranged on the brush fixing column 11 through a positioning pin 9, the positioning pin 9 is clamped into inner holes of the brush 3 and the brush fixing column 11, the positioning pin 9 is fixedly connected with the brush fixing column 11, and the positioning pin 9 is rotatably connected with the brush 3. And brush 3 with lid 2 cooperation presss from both sides torsion spring 4 behind the plastic, brush 3 with torsion spring 4 is between the preferential gasket 14 that is provided with, and gasket 14 can prevent that spring 4 from directly contacting brush 3 from causing wearing and tearing, the one end of torsion spring 4 is installed on lid 2 behind the plastic and the other end is installed on the brush 3 to exert elasticity and let brush 3 contact with the commutator of coreless motor, conductive terminal 5 is installed on lid 2 behind the plastic, brush 3 passes through brush braid 31 with conductive terminal 5 is connected, brush braid 31 with terminal 5 is preferably through soldering tin welding together, install on conductive terminal 5 lead wire 6, lead wire 6's one end passes in proper order lid 2 behind the plastic and lid 1 behind the metal. The lead wire 6 is soldered to the terminal 5 and extends from the metal back cover 1 for external power supply.
One end of each torsion spring 4 applies elastic force to the brushes 3, respectively, and the two brushes 3 cooperate to sandwich the commutator between the two brushes 3, preventing the brushes 3 from being separated from the commutator.
Further, be provided with many spliced poles 13 on the plastic back lid 2, every the spliced pole is T shape post, lid 2 with lid 1 is in the same place behind the plastic through spliced pole 13 connection behind the metal, conveniently behind the plastic lid 2 fixed mounting behind the metal lid 1. The connecting post 13 has a large end and a small end, the large end can be pressed on the metal rear cover 2, and the plastic rear cover 2, the terminal fixing post, the brush fixing post 11 and the connecting post 13 are preferably integrally injection molded.
Further, each group of reversing assemblies further comprises a terminal fixing column, the terminal fixing columns are mounted on the plastic rear cover 2, the terminals 5 are mounted on the plastic rear cover 2 through the terminal fixing columns, and the terminals 5 are preferably fixedly connected with the terminal fixing columns through glue.
Further, slots are formed in the plastic rear cover 2 and the electric brush 3 respectively, one end of the torsion spring 4 stretches into the slot of the plastic rear cover 2, and the other end stretches into the slot of the electric brush 3, so that the torsion spring 4 is convenient to install.
Further, the utility model also comprises an outer protective sleeve 8, wherein the outer protective sleeve 8 wraps the metal back cover 1, and the outer protective sleeve 8 shields the welding seam between the metal back cover 1 and the outer shell 12, so that the welding seam between the metal back cover 1 and the outer shell 12 is not rusted. Compared with the prior art that the original shell can be damaged after riveting to cause the shell to rust, the utility model adopts a welding mode to connect the metal rear cover 1 with the shell 12 and adopts the outer protective sleeve 8 to protect welding seams, thereby prolonging the service life of the hollow cup motor.
Further, the metal rear cover 1 is further provided with a bearing 7 for penetrating the motor shaft, so that the motor shaft can be rotated conveniently. The center of the metal rear cover 1 is provided with a bearing chamber in which a bearing 7 is installed.
The end cover of the utility model has high strength, and the metal rear cover 1 is welded with the shell 12 of the hollow cup motor, so that the integral strength of the hollow cup motor can be improved. After the assembly of each module of the hollow cup motor is completed, the metal rear cover 1 and the shell 12 are preferably fixedly connected through laser welding, so that the overall strength of the hollow cup motor is further improved.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. Can improve casing subassembly of hollow cup motor strength, a serial communication port, including shell and back lid subassembly, back lid subassembly includes end cover and two sets of steering assembly, wherein:
the end cover comprises a metal rear cover and a plastic rear cover, wherein the metal rear cover is provided with an inner cavity, the plastic rear cover stretches into the inner cavity of the metal rear cover, the plastic rear cover is fixedly connected with the metal rear cover, and the metal rear cover is connected with one end of the shell in a welding mode;
for each group of reversing components, the reversing component comprises a brush fixing column, a brush, a conductive terminal, a brush braid, a torsion spring and a lead wire, wherein the brush fixing column is arranged on the plastic rear cover, the torsion spring is arranged on the brush fixing column in a penetrating mode, the brush is rotatably arranged on the brush fixing column, the brush and the plastic rear cover are matched and clamped with the torsion spring, one end of the torsion spring is arranged on the plastic rear cover, the other end of the torsion spring is arranged on the brush so as to apply elastic force to enable the brush to be in contact with the reverser, the conductive terminal is arranged on the plastic rear cover, the brush is connected with the conductive terminal through the brush braid, the lead wire is arranged on the conductive terminal, and one end of the lead wire sequentially penetrates through the plastic rear cover and the metal rear cover.
2. The housing assembly of claim 1, wherein said metal back cover is laser welded to one end of said housing.
3. The housing assembly of claim 1 wherein said plastic rear cover does not extend beyond the interior cavity of said metal rear cover.
4. A housing assembly for a coreless motor as claimed in claim 1, wherein a spacer is provided between the brush and the torsion spring.
5. The housing assembly for a coreless motor of claim 1, wherein the plastic rear cover is provided with a plurality of connecting posts, each of the connecting posts being a T-post, the plastic rear cover and the metal rear cover being connected together by the connecting posts.
6. The housing assembly of claim 1, wherein each set of said reversing assemblies further comprises a terminal mounting post mounted to said plastic rear cover, said terminals being mounted to said plastic rear cover by said terminal mounting posts.
7. The housing assembly of claim 1, wherein the plastic rear cover and the brush are respectively provided with slots, one end of the torsion spring extends into the slots of the plastic rear cover and the other end extends into the slots of the brush.
8. A housing assembly for an electric coreless motor as claimed in claim 1, wherein the metal rear cover is provided with bearings for mounting the motor shaft.
9. The housing assembly of claim 1, further comprising an outer protective sleeve surrounding the metallic back cover and concealing a weld between the metallic back cover and the outer shell.
10. The housing assembly of claim 1, wherein said brushes are rotatably mounted to said brush mounting posts by dowel pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322322686.3U CN220673506U (en) | 2023-08-29 | 2023-08-29 | Casing assembly capable of improving strength of hollow cup motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322322686.3U CN220673506U (en) | 2023-08-29 | 2023-08-29 | Casing assembly capable of improving strength of hollow cup motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220673506U true CN220673506U (en) | 2024-03-26 |
Family
ID=90326703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322322686.3U Active CN220673506U (en) | 2023-08-29 | 2023-08-29 | Casing assembly capable of improving strength of hollow cup motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220673506U (en) |
-
2023
- 2023-08-29 CN CN202322322686.3U patent/CN220673506U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |