CN220307042U

CN220307042U - Outer rotor motor

Info

Publication number: CN220307042U
Application number: CN202321833671.7U
Authority: CN
Inventors: 李浩然; 何锦豪; 曾至臻; 苏鋆
Original assignee: Dayang Electric Wuhan Research Institute Co ltd
Current assignee: Dayang Electric Wuhan Research Institute Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-01-05
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses an outer rotor motor, which further comprises a dust cover, a wiring board plug and a wiring box, wherein the wiring board plug is used for connecting outgoing lines of a stator assembly with external leads, a first annular boss axially extends from the bottom surface of a bottom plate, the dust cover is embedded in the first annular boss and seals the outlet of a through hole, a plurality of positioning columns are protruded on the bottom surface of the dust cover, a plurality of first positioning mounting holes corresponding to the positioning columns are formed in the wiring board plug, a wire outlet hole for the outgoing lines of the stator assembly to penetrate out is formed in the bottom plate, one side of the outlet is provided with the wiring box, the wiring box is arranged on the bottom surface of the bottom plate and is provided with the wire outlet hole, the dust cover and the wiring board plug cover, and a lead port for the external leads to be led in is formed in the wiring box.

Description

Outer rotor motor

Technical Field

The utility model relates to an external rotor motor.

Background

See patent number 201821138401.3 name for take waterproof construction's external rotor motor, including external rotor subassembly, pivot, stator module, bearing and base, wherein the base includes the bottom plate and follows the bellied sleeve of bottom plate centre axial, forms the through-hole in the middle of the sleeve, and the sleeve the inside sets up the bearing frame, and the bearing frame installs the bearing in the inside, and the pivot stretches into the through-hole the inside and support and install on the bearing, and the top and the external rotor subassembly of pivot are connected, and stator module is installed in the sleeve outside, has rotor module in the outside cover of stator module, its characterized in that: the waterproof wall is arranged on the periphery of an outlet at the bottom of the through hole, the sealing cover is arranged on the waterproof wall to seal the outlet at the bottom of the through hole, two capacitor box mounting columns are arranged on the bottom of the bottom plate in a protruding mode, the capacitor box is arranged on the outer side of the waterproof wall, the capacitor box is arranged on the capacitor box mounting columns by using screws, the bearing is sealed by the sealing cover, the lower sealing cover of the junction box is assembled to the bearing seat, the junction box is inserted into the junction box by the assembly wiring row, the stator component leads enter the junction box by the sealing plug, the junction box is connected to the junction row by the lead wire and is led out by the cable lock head to be locked, the junction box sealing ring is assembled by the fastening screw to enable the upper end cover of the junction box to be locked.

Disclosure of Invention

The utility model aims to provide an external rotor motor, which solves the technical problems of complex structure, more parts, high assembly difficulty, high overall motor height and easy failure of a sealing element exposed to extreme environments in the prior art.

The technical scheme of the utility model is realized as follows:

the utility model provides an outer rotor motor, which comprises a rotating shaft, a stator assembly, an outer rotor assembly and a base, wherein the base comprises a bottom plate and a sleeve protruding upwards from the middle of the top surface of the bottom plate, a through hole penetrating along the axis of the sleeve is arranged in the middle of the sleeve, bearing chambers are arranged at two ends of the sleeve, bearings are arranged in the bearing chambers, the rotating shaft is positioned in the sleeve, the two ends of the rotating shaft are supported on the bearings, the outer rotor assembly comprises a rotor shell, one end of the rotating shaft extends out of the sleeve and is connected with the rotor shell in an installation manner, the stator assembly is nested and arranged outside the sleeve, and the rotor shell is sleeved outside the stator assembly, and the outer rotor motor is characterized in that:

the novel anti-dust wiring board comprises a base plate, and is characterized by further comprising a dust cover, a wiring row plug and a junction box, wherein the wiring row plug is used for connecting outgoing lines of a stator assembly and external leads, a first annular boss axially extends from the bottom surface of the base plate, the first annular boss is located at the periphery of an outlet at the bottom of a through hole, the dust cover is embedded in the first annular boss and seals the outlet of the through hole, a plurality of positioning columns protrude from the bottom surface of the dust cover, a plurality of first positioning mounting holes corresponding to the positioning columns are formed in the wiring row plug, the wiring row plug is arranged on the dust cover through the cooperation of the first positioning mounting holes and the positioning columns, a wire outlet hole for the outgoing lines of the stator assembly to penetrate is formed in the base plate, the wire outlet hole is formed in one side of the outlet, the junction box is arranged on the bottom surface of the base plate and is provided with a wire outlet hole for the external leads to be led in.

The junction box comprises an end plate and a sleeve shell axially extending from the edge of the end plate, a cavity is formed between the end plate and the sleeve shell, a second annular boss axially extends from the bottom surface of the bottom plate, the second annular boss is located outside the first annular boss and the wire outlet hole, the sleeve shell is sleeved outside the second annular boss, and the wire outlet is formed in the sleeve shell.

The outer side surface of the second annular boss is provided with a first sealing groove, a first sealing ring is arranged in the first sealing groove, and the sleeve shell is sleeved outside the second annular boss and tightly presses the first sealing ring so as to achieve the sealing effect.

The bottom surface of the bottom plate is provided with a plurality of first installation bosses, the outer side surface of the sleeve shell is provided with a plurality of second installation bosses corresponding to the first installation bosses, the first installation bosses are provided with first installation holes, the second installation bosses are provided with second installation holes, and the terminal box is fixed on the bottom plate by penetrating through the second installation holes through screws to be locked and connected with the first installation holes.

The side wall of the dust cover is provided with the positioning boss in a protruding mode, the first annular boss is provided with the positioning groove matched with the positioning boss, and the positioning boss is embedded in the positioning groove.

And an insulating paper is arranged between the wiring board plug and the dust cover, and a plurality of second positioning mounting holes corresponding to the positioning columns are formed in the insulating paper.

The dustproof cover is characterized in that a third annular boss axially extends from one end face of the dustproof cover, the third annular boss penetrates through the outlet and stretches into the through hole, a second sealing groove is formed in the outer side face of the third annular boss, and a second sealing ring is installed in the second sealing groove.

And the wire outlet hole is embedded with a sealing plug, and a lead wire of the stator assembly is led out through the sealing plug.

The lead wire opening is provided with a lock head which is used for locking the lead wire.

Compared with the prior art, the utility model has the following advantages:

1. the utility model comprises a rotating shaft, a stator component, an outer rotor component and a base, wherein the base comprises a bottom plate and a sleeve protruding upwards from the middle of the top surface of the bottom plate, a through hole penetrating along the axis of the sleeve is arranged in the middle of the sleeve, bearing chambers are arranged at two ends of the sleeve, bearings are arranged in the bearing chambers, the rotating shaft is positioned in the sleeve, the two ends of the rotating shaft are supported on the bearings, the outer rotor component comprises a rotor shell, one end of the rotating shaft extends out of the sleeve and is connected with the rotor shell in an installation way, the stator component is nested and arranged outside the sleeve, and the rotor shell is sleeved outside the stator component, and the utility model is characterized in that: the novel electric motor is characterized by further comprising a dustproof cover, a wiring row plug and a junction box, wherein the wiring row plug is used for connecting outgoing lines of the stator assembly with external leads, a first annular boss axially extends from the bottom surface of the bottom plate, the first annular boss is located at the periphery of an outlet of the bottom of the through hole, the dustproof cover is embedded in the first annular boss and seals the outlet of the through hole, a plurality of positioning columns protrude from the bottom surface of the dustproof cover, a plurality of first positioning mounting holes corresponding to the positioning columns are formed in the wiring row plug, the wiring row plug is arranged on the dustproof cover through the cooperation of the first positioning mounting holes and the positioning columns, a wire outlet hole for the outgoing lines of the stator assembly to penetrate is formed in the bottom plate, one side of the wire outlet hole is arranged on the bottom surface of the bottom plate, the junction box is provided with a wire outlet hole for the external leads to be led in, the dustproof cover and the wiring row plug cover are arranged on the junction box, the dustproof cover is used for fixing wiring copper bars through the positioning columns, the integrated design is used for replacing wiring layout of the junction box structure, the whole height of the motor is reduced, the number of the product is reduced, the assembly process is reduced, and the cost is saved.

2. Other advantages of the present utility model are described in detail in the description of the embodiments.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is another exploded view provided by the present utility model;

FIG. 4 is a front view of the present utility model;

FIG. 5 is a cross-sectional view of A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of B in FIG. 5;

fig. 7 is a schematic structural diagram of an outgoing line and an external lead provided by the utility model;

fig. 8 is a schematic structural diagram of a dust cover and a patch cord according to the present utility model;

FIG. 9 is an exploded view of the dust cap and the patch cord provided by the present utility model;

fig. 10 is a perspective view of a dust cap provided by the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1 to 10, this embodiment provides an external rotor motor, including a rotating shaft 1, a stator assembly 2, an external rotor assembly 3 and a base 4, the base 4 includes a bottom plate 41 and a sleeve 42 protruding upward from the middle of the top surface of the bottom plate 41, a through hole 420 penetrating along the axis of the sleeve 42 is provided in the middle of the sleeve 42, bearing chambers 421 are provided at two ends of the sleeve 42, bearings 422 are installed in the bearing chambers 421, the rotating shaft 1 is located in the sleeve 42 and supported at two ends on the bearings 422, the external rotor assembly 3 includes a rotor housing 31, one end of the rotating shaft 1 extends out of the sleeve 42 and is connected with the rotor housing 31, the stator assembly 2 is nested outside the sleeve 42, the rotor housing 31 is sleeved outside the stator assembly 2, and the external rotor motor is characterized in that:

the novel electric motor stator assembly comprises a base plate 41, and is characterized by further comprising a dustproof cover 5, a wiring row plug 6 and a junction box 7, wherein the wiring row plug 6 is used for connecting outgoing wires 100a of the stator assembly 2 with external leads 100b, a first annular boss 411 axially extends from the bottom surface of the base plate 41, the first annular boss 411 is located at the periphery of an outlet 420a at the bottom of a through hole 420, the dustproof cover 5 is embedded in the first annular boss 411 and seals the outlet 420a of the through hole 420, a plurality of positioning columns 51 are protruded out of the bottom surface of the dustproof cover 5, a plurality of first positioning mounting holes 61 corresponding to the positioning columns 51 are formed in the wiring row plug 6, the wiring row plug 6 is arranged on the first positioning mounting holes 61 and matched with the positioning columns 51, the wiring row plug 6 is arranged on the dustproof cover 5, an outgoing wire hole 412 for the outgoing wires of the stator assembly 2 is formed in the base plate 41, the outgoing wire hole 412 is located on one side of the outlet 420a, the junction box 7 is arranged on the bottom surface of the base plate 41 and covers the outgoing wire hole 412, the dustproof cover 5 and the wiring row plug 6, and the wiring box 7 is provided with a lead-in opening 71 for the external leads.

The terminal box 7 comprises an end plate 72 and a sleeve shell 73 axially extending from the edge of the end plate 72, a cavity 74 is formed between the end plate 72 and the sleeve shell 73, a second annular boss 413 axially extends from the bottom surface of the bottom plate 41, the second annular boss 413 is located outside the first annular boss 411 and the wire outlet hole 412, the sleeve shell 73 is sleeved outside the second annular boss 413, the wire outlet 71 is arranged on the sleeve shell 73, the structural arrangement is reasonable, the terminal box structure wiring arrangement is replaced, and the overall height of the motor is reduced after the parts are saved.

The outer side surface of the second annular boss 413 is provided with the first sealing groove 4131, the first sealing groove 4131 is internally provided with the first sealing ring 4132, the sleeve shell 73 is sleeved outside the second annular boss 413 and tightly presses the first sealing ring 4132 to achieve a sealing effect, a double-layer sealing effect is formed through the first sealing ring 4132 and the dust cover 5, a sealing element is placed in the motor, the reliability of a product is improved, and the sealing effect is good.

The bottom surface of the bottom plate 41 is provided with a plurality of first mounting bosses 414, the outer side surface of the sleeve housing 73 is provided with a plurality of second mounting bosses 731 corresponding to the first mounting bosses 414, the first mounting bosses 414 are provided with first mounting holes 4141, the second mounting bosses 731 are provided with second mounting holes 7311, and the terminal box 7 is fixed on the bottom plate 41 by penetrating through the second mounting holes 7311 through screws and locking connection with the first mounting holes 4141, so that the mounting structure is simple.

The side wall of the dust cover 5 protrudes out of the positioning boss 52, the first annular boss 411 is provided with the positioning groove 4111 matched with the positioning boss 52, and the positioning boss 52 is embedded in the positioning groove 4111, so that the dust cover is reasonably arranged in a positioning manner.

The insulating paper 9 is arranged between the wiring board 6 and the dust cover 5, and the insulating paper 9 is provided with a plurality of second positioning mounting holes 91 corresponding to the positioning columns 51, so that the insulating effect is good, and the structural arrangement is reasonable.

The end surface of the dust cover 5 extends out of the third annular boss 53 in the axial direction, the third annular boss 53 penetrates through the outlet 420a and extends into the through hole 420, the second sealing groove 531 is arranged on the outer side surface of the third annular boss 53, and the second sealing ring 532 is installed in the second sealing groove 531, so that the sealing effect is good.

The wire outlet hole 412 is embedded with a sealing plug 4121, and the lead wire of the stator assembly 2 is led out through the sealing plug 4121.

A locking head 711 is installed at the lead wire opening 71, and the locking head 711 is used for locking the lead wire.

The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present utility model are included in the scope of the present utility model.

Claims

1. The utility model provides an external rotor motor, including pivot (1), stator module (2), external rotor module (3) and base (4), base (4) are including bottom plate (41) and from the top surface centre of bottom plate (41) up bellied sleeve (42), be equipped with in the middle of sleeve (42) along sleeve (42) axis through-hole (420), bearing room (421) have been seted up at sleeve (42) both ends, install bearing (422) in bearing room (421), pivot (1) are located sleeve (42) the inside and both ends support on bearing (422), external rotor module (3) include rotor housing (31), the one end of pivot (1) stretches out from sleeve (42) and is in the same place with rotor housing (31) installation connection, the outside at sleeve (42) is installed in the nest of stator module (2), rotor housing (31) cover is located stator module (2) outside, its characterized in that:

the novel electric wire connector further comprises a dust cover (5), a wire connector (6) and a wire connector box (7), wherein the wire connector (6) is used for connecting outgoing wires (100 a) of the stator assembly (2) and external wires (100 b), a first annular boss (411) axially extends out of the bottom surface of the bottom plate (41), the first annular boss (411) is located at the periphery of an outlet (420 a) of the bottom of the through hole (420), the dust cover (5) is embedded in the first annular boss (411) and seals the outlet (420 a) of the through hole (420), a plurality of positioning columns (51) are protruded out of the bottom surface of the dust cover (5), a plurality of first positioning mounting holes (61) corresponding to the positioning columns (51) are formed in the wire connector (6), the wire connector (6) is mounted on the dust cover (5) through the cooperation of the first positioning mounting holes (61) and the positioning columns (51), the wire connector (412) for the outgoing wires of the stator assembly (2) are arranged on the bottom plate (41), the wire connector box (7) is mounted on one side of the outlet (420 a), and the wire connector box (7) is mounted on the bottom surface of the bottom plate (41) and can be led into the wire connector box (7) through the wire connector (7).

2. An external rotor motor according to claim 1, wherein: the junction box (7) comprises an end plate (72) and a sleeve shell (73) axially extending from the edge of the end plate (72), a cavity (74) is formed between the end plate (72) and the sleeve shell (73), a second annular boss (413) axially extends out of the bottom surface of the bottom plate (41), the second annular boss (413) is located outside the first annular boss (411) and the wire outlet hole (412), the sleeve shell (73) is sleeved outside the second annular boss (413), and the wire outlet (71) is formed in the sleeve shell (73).

3. An external rotor motor according to claim 2, wherein: the outer side surface of the second annular boss (413) is provided with a first sealing groove (4131), a first sealing ring (4132) is installed in the first sealing groove (4131), and the sleeve shell (73) is sleeved outside the second annular boss (413) and tightly presses the first sealing ring (4132) to achieve a sealing effect.

4. An external rotor motor according to claim 3, characterized in that: be equipped with a plurality of first installation bosss (414) on the bottom surface of bottom plate (41), be equipped with a plurality of second installation bosss (731) that correspond with first installation boss (414) on the lateral surface of sleeve shell (73), be equipped with first mounting hole (4141) on first installation boss (414), be equipped with second mounting hole (7311) on second installation boss (731), pass second mounting hole (7311) and first mounting hole (4141) locking connection through the screw, make terminal box (7) fix on bottom plate (41).

5. An external rotor motor according to claim 1 or 2 or 3 or 4, characterized in that: the side wall of the dust cover (5) is provided with a positioning boss (52) in a protruding mode, a positioning groove (4111) matched with the positioning boss (52) is formed in the first annular boss (411), and the positioning boss (52) is embedded in the positioning groove (4111).

6. An external rotor motor as claimed in claim 5, wherein: an insulating paper (9) is arranged between the wiring extension socket (6) and the dust cover (5), and a plurality of second positioning mounting holes (91) corresponding to the positioning columns (51) are formed in the insulating paper (9).

7. An external rotor motor as claimed in claim 6, wherein: a third annular boss (53) axially extends from one end face of the dust cover (5), the third annular boss (53) penetrates through the outlet (420 a) and stretches into the through hole (420), a second sealing groove (531) is formed in the outer side face of the third annular boss (53), and a second sealing ring (532) is arranged in the second sealing groove (531).

8. An external rotor motor as claimed in claim 7, wherein: a sealing plug (4121) is embedded in the wire outlet hole (412), and a lead wire of the stator assembly (2) is led out through the sealing plug (4121).

9. An external rotor motor as claimed in claim 8, wherein: a lock head (711) is arranged at the lead wire opening (71), and the lock head (711) is used for locking the lead wire.