CN217445144U - Base and external rotor motor - Google Patents
Base and external rotor motor Download PDFInfo
- Publication number
- CN217445144U CN217445144U CN202221018190.6U CN202221018190U CN217445144U CN 217445144 U CN217445144 U CN 217445144U CN 202221018190 U CN202221018190 U CN 202221018190U CN 217445144 U CN217445144 U CN 217445144U
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- base
- bottom plate
- annular
- thick bamboo
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Abstract
The utility model discloses a base and an external rotor motor, wherein the base comprises a bottom plate, a first cylinder part is arranged at the central position of the bottom plate, a second cylinder part is arranged above the first cylinder part, the external diameter of the second cylinder part is smaller than that of the first cylinder part, a plurality of groups of vent holes are arranged on the bottom plate by taking the first cylinder part as the center, the mounting feet of the base are uniformly distributed on the outer side of the bottom plate, the mounting feet are connected with the first cylinder part through first reinforcing ribs, the annular heat dissipation ribs are connected with the mounting feet, the outgoing line of the stator assembly of the outer rotor motor is led out from the wiring board, be provided with the lead wire fixed part on the wiring board, lead wire fixed part and the radiating muscle of base annular on the opening looks adaptation, the lead-out wire is drawn forth via wiring board, lead wire fixed part, the radiating muscle opening part of annular, the utility model discloses when simplifying mounting structure, the structural stability and the heat dispersion of motor have been improved.
Description
Technical Field
The utility model relates to a base and external rotor electric machine belongs to external rotor electric machine technical field.
Background
The small outer rotor motor is usually fixed on a base, the base is installed on the whole machine, a sleeve for installing a stator is arranged on the base, a bearing chamber is arranged in the sleeve, and a bearing system is installed in the sleeve. In order to dissipate heat from the motor, heat dissipating ribs are generally provided on the base.
There are some problems with the conventional motor base structure: on one hand, the heat dissipation ribs usually extend out of the outer edge of the base, and are beneficial to heat dissipation, but the heat dissipation ribs are similar to a cantilever beam structure, and the tail ends of the heat dissipation ribs vibrate to generate noise when the motor runs; on the other hand, the motor lead is directly clamped on the metal base and is in contact with the metal base, so that the reliability is to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a base for motor has that structural stability is good, the motor is along vibrating little characteristics outward when moving.
The utility model adopts the following technical scheme:
the utility model provides a base, includes the bottom plate, central point at the bottom plate puts and is provided with first section of thick bamboo portion, second section of thick bamboo portion is located the top of first section of thick bamboo portion, and the external diameter of second section of thick bamboo portion is less than the external diameter of first section of thick bamboo portion, uses first section of thick bamboo portion to set up the multiunit ventilation hole as the center on the bottom plate, is provided with annular strengthening rib in the outside of bottom plate, and annular strengthening rib passes through the second strengthening rib and is connected with first section of thick bamboo portion, and annular heat dissipation muscle sets up in the outside of annular strengthening rib, links to each other through the splice bar between annular heat dissipation muscle and the annular strengthening rib.
The utility model discloses a base adopts annular heat dissipation muscle, for the cantilever type heat dissipation muscle of traditional structure, structural stability is good, and the base is outer along the vibration little when the motor operates, through annular strengthening rib, second strengthening rib and the splice bar of addding, together with first strengthening rib, annular heat dissipation muscle, has not only constituted the bearing structure of base, has also constituted the heat radiation structure of base simultaneously, in the stabilizing base structure, can the effectual heat dispersion that improves the base.
The further setting is that:
the installation foot equipartition of base is in the outside of bottom plate, and the installation foot is connected through first strengthening rib with first barrel, and annular heat dissipation muscle is connected with the installation foot.
The thickness of the annular reinforcing rib is larger than that of the bottom plate.
A step is formed between the first cylinder part and the second cylinder part, and a plurality of positioning grooves are formed in the outer peripheral surface of the second cylinder part and used for installing and positioning the motor stator assembly.
The bottom plate is the circular slab, uses first section of thick bamboo portion to set up the ventilation hole that the multiunit annular was arranged as the center on the bottom plate, and the ventilation hole that the multiunit annular was arranged constitutes the cooling system of base with annular heat dissipation muscle together.
The installation foot of base sets up to 3 altogether, and the equipartition is connected through two first strengthening ribs in the outside of bottom plate, every installation foot and first section of thick bamboo.
And an opening for leading out the stator lead-out wire is also arranged on the annular heat dissipation rib.
The utility model also provides an adopt the external rotor electric machine of above-mentioned base, including base, stator module, rotor subassembly, stator module includes stator core and wiring board, and stator core installs in second section of thick bamboo portion, is provided with a plurality of location teeth on stator core's interior circumference, location tooth and the positioning groove looks adaptation of second section of thick bamboo portion.
The outgoing line of stator module is drawn forth from the wiring board, is provided with the lead fixed part on the wiring board, and the lead fixed part outwards extends from the wiring board to along circumferencial direction protrusion in stator core, the opening looks adaptation on lead fixed part and the base annular heat dissipation muscle, the outgoing line is drawn forth via wiring board, lead fixed part, annular heat dissipation muscle opening part.
The utility model has the advantages as follows:
1. the utility model discloses a base adopts annular heat dissipation muscle, for the cantilever type heat dissipation muscle of traditional structure, structural stability is good, and the base is outer along the vibration little when the motor operates.
2. Through set up annular strengthening rib, first strengthening rib, second strengthening rib, splice bar, annular heat dissipation muscle on the base, above-mentioned structure has constituted the bearing structure of base, has also constituted the heat radiation structure of base simultaneously, when stabilizing base structure, can effectual improvement base heat dispersion.
3. The lead wire of the traditional structure is clamped on the metal base, and potential safety hazards exist in friction contact, so that the lead wire is fixed on the wiring board of the stator assembly, and the opening is arranged at the corresponding position of the base for matching, thereby avoiding the potential hazards; meanwhile, the lead is directly fixed on the stator assembly and is not fixed on the base, and subsequent installation is simplified.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic structural diagram of an electric motor with an outer rotor according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a base according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a stator assembly according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 3, the external rotor electric machine includes a base 1, a stator assembly 2, and a rotor assembly 3.
The base 1 comprises a bottom plate 10, the bottom plate 10 is a circular plate, a first cylinder part 11 is arranged at the central position of the bottom plate 10, a second cylinder part 12 is positioned above the first cylinder part 11, the outer diameter of the second cylinder part 12 is smaller than that of the first cylinder part 11 so as to form a step between the first cylinder part 11 and the second cylinder part 12, a plurality of positioning grooves 13 are arranged on the outer peripheral surface of the second cylinder part 12 and used for installing and positioning the stator assembly 2, and a bearing chamber for installing a bearing is arranged at the lower part of the first cylinder part 11.
A plurality of sets of ventilation holes 111 arranged in a ring shape are arranged on the bottom plate 10 by taking the first cylinder part 11 as a center, preferably, two sets of ventilation holes 111 arranged in a ring shape are arranged, the ventilation holes 111 and the first cylinder part 11 are arranged concentrically, and when the motor operates, the airflow takes away heat through the ventilation holes 111.
The mounting feet 14 of the base 1 are uniformly distributed on the outer side of the bottom plate 10, each mounting foot 14 is provided with a mounting hole 15 for mounting the motor, in this embodiment, the number of the mounting feet 14 is 3, each mounting foot 14 is connected with the first cylinder 11 through a first reinforcing rib 16, and as a preferred embodiment, a set of two first reinforcing ribs 16 for connecting the mounting feet with the first cylinder is provided.
The outer side of the bottom plate 10 is provided with an annular reinforcing rib 17, as a preferred embodiment, the thickness of the annular reinforcing rib 17 is larger than that of the bottom plate 10, the outer side of the annular reinforcing rib 17 is provided with an annular heat dissipation rib 18, the annular heat dissipation rib 18 is connected with the root of the mounting foot 14, the annular heat dissipation rib 18 is connected with the annular reinforcing rib 17 through a connecting rib 19, the bottom plate 10 is further provided with a second reinforcing rib 110, and the second reinforcing rib 110 is connected with the first cylindrical part 11 and the annular reinforcing rib 17.
The utility model relates to an embodiment is through first strengthening rib 16, second strengthening rib 110, the structure setting of annular strengthening rib 17, can effectually keep base 1 and stator module 2 mounting structure's stability, on the other hand, annular heat dissipation muscle 18 passes through splice bar 19 and links to each other with annular strengthening rib 17, annular heat dissipation muscle 18 and first strengthening rib 16, second strengthening rib 110, annular strengthening rib 17 not only constitutes base 1's additional strengthening, base 1's heat radiation structure has also been constituted simultaneously, they and bottom plate 10's ventilation hole 111, the heat dissipation system of external rotor electric machine has been constituteed, can effectually discharge the heat that the motor operation produced, better heat dissipation efficiency has.
An opening 112 is also provided on the annular heat dissipation rib 18 for leading out the stator lead-out wires 24 from the opening 112.
As a preferred arrangement, the positioning teeth 21 and the positioning grooves 13 are arranged in 4 groups and are uniformly distributed, so that the installation stability of the base 1 and the stator assembly 2 can be effectively maintained.
The lead wires 24 of the stator assembly 2 are led out from the terminal plate 22, the terminal plate 22 is provided with a lead fixing portion 23, the lead fixing portion 23 extends outward from the terminal plate 22 and protrudes in the stator core 20 in the circumferential direction, and the lead wires 24 are located in the lead fixing portion 23 and led out from the lead fixing portion 23.
Preferably, the lead fixing portion 23 is adapted to the opening of the annular heat dissipating rib of the base, and when the stator assembly 2 is mounted on the base 1, the lead fixing portion 23 is sleeved at the opening of the annular heat dissipating rib of the base, so as to ensure that the stator lead 24 is led out from the opening.
Claims (10)
1. A base, includes the bottom plate, its characterized in that: the central point at the bottom plate puts and is provided with first section of thick bamboo portion, and the second section of thick bamboo portion is located the top of first section of thick bamboo portion, and the external diameter of second section of thick bamboo portion is less than the external diameter of first section of thick bamboo portion, uses first section of thick bamboo portion to set up the multiunit ventilation hole as the center on the bottom plate, is provided with annular strengthening rib in the outside of bottom plate, and annular strengthening rib passes through the second strengthening rib and is connected with first section of thick bamboo portion, and annular heat dissipation muscle sets up in the outside of annular strengthening rib, links to each other through the splice bar between annular heat dissipation muscle and the annular strengthening rib.
2. A base as claimed in claim 1, wherein: the installation foot equipartition of base is in the outside of bottom plate, and the installation foot is connected through first strengthening rib with first barrel, and annular heat dissipation muscle is connected with the installation foot.
3. A base as claimed in claim 1, wherein: the thickness of the annular reinforcing rib is larger than that of the bottom plate.
4. A base as claimed in claim 1, wherein: a step is formed between the first cylinder part and the second cylinder part, and a plurality of positioning grooves are arranged on the outer peripheral surface of the second cylinder part.
5. A base as claimed in claim 1, wherein: the bottom plate is the circular slab, uses first section of thick bamboo portion to set up the ventilation hole that the multiunit annular was arranged as the center on the bottom plate.
6. A base as claimed in claim 1, wherein: the installation foot of base sets up to three altogether, and the equipartition is in the outside of bottom plate, and every installation foot is connected through two first strengthening ribs with first section of thick bamboo.
7. A base as claimed in claim 1, wherein: and an opening for leading out the stator lead-out wire is also arranged on the annular heat dissipation rib.
8. The utility model provides an external rotor electric machine, includes base, stator module, rotor subassembly, its characterized in that: the base is the base as claimed in any one of claims 1 to 7.
9. The external rotor electric machine according to claim 8, wherein: stator module includes stator core and wiring board, and stator core installs in second section of thick bamboo portion, is provided with a plurality of location teeth on stator core's inner circumferential surface, location tooth and the positioning groove looks adaptation of second section of thick bamboo portion.
10. An external rotor electric machine as claimed in claim 8, wherein: the outgoing line of stator module is drawn forth from the wiring board, is provided with the lead wire fixed part on the wiring board, and the lead wire fixed part outwards extends from the wiring board to along circumferencial direction protrusion in stator core, the opening looks adaptation on lead wire fixed part and the base annular heat dissipation muscle, the outgoing line is drawn forth via wiring board, lead wire fixed part, annular heat dissipation muscle opening part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221018190.6U CN217445144U (en) | 2022-04-28 | 2022-04-28 | Base and external rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221018190.6U CN217445144U (en) | 2022-04-28 | 2022-04-28 | Base and external rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217445144U true CN217445144U (en) | 2022-09-16 |
Family
ID=83218939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221018190.6U Active CN217445144U (en) | 2022-04-28 | 2022-04-28 | Base and external rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217445144U (en) |
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2022
- 2022-04-28 CN CN202221018190.6U patent/CN217445144U/en active Active
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