CN201383724Y - Motor end cover, outer rotor using same and outer rotor motor - Google Patents

Abstract

The utility model provides a motor end cover, includes end lid body (1), and the one end of end lid body (1) is opened and is stretched out outward in the edge and have turn-ups (2), and the centre department of the end lid body (1) other end sets up bearing room (3), sets up a plurality of mounting hole (4) on turn-ups (2), and the indent is fluted (6) on the lateral wall of the next door of mounting hole (4), end lid body (1). The utility model discloses it is fluted to indent on the lateral wall of the next door of the mounting hole on the end cover turn-ups, end cover body, has enlarged assembly area around the mounting hole, has increased end cover intensity, and the assembly of being convenient for has improved assembly efficiency to production efficiency has been improved.

Description

A kind of motor end cover and its applied outer rotor and outer rotor motor

Technical field:

The utility model relates to a motor end cover, an outer rotor applied thereto, and an outer rotor motor.

Background technique:

At present, in the field of most external rotor motors, the external rotor and the motor end cover adopt a hole-hole installation structure, which has the following technical problems: 1) The outer side wall of the end cover is very close to the installation hole, and the assembly area is narrow. The assembly space is limited, it is easy to cause damage to the end cover during assembly, and the assembly is inconvenient; 2) Only the hole-to-hole installation structure is used. During assembly, the mounting hole of the end cover and the screw hole on the end surface of the outer rotor cannot be accurate and fast Alignment, difficult positioning, difficult assembly; 3) When assembling, the installation accuracy is not high, misalignment is prone to occur, the assembly efficiency is low, and the production efficiency is low; 4) Some technicians need to add additional on the edge of the end cover in order to obtain the ideal assembly effect. There are several mounting ears, which instead increases the mold making cost and production cost.

Utility model content:

One of the purposes of the present utility model is to provide a motor end cover, which has grooves on the side of the mounting hole and on the outer wall of the end cover, which enlarges the assembly area around the mounting hole and increases the structural strength of the end cover. It is easy to assemble, and the assembly efficiency is improved, thereby improving the production efficiency.

The motor end cover of the utility model is realized through the following technical solutions.

A motor end cover, comprising an end cover body, one end of the end cover body is open and a flanging protrudes outward from the edge, a bearing chamber is arranged in the middle of the other end of the end cover body, and several mounting holes are arranged on the flange, A groove is recessed on the outer wall of the end cover beside the mounting hole.

A positioning boss protrudes from the above-mentioned flanging in the axial direction.

The above-mentioned positioning boss is a cylinder.

On the outer wall of the above-mentioned end cover body, several ventilation holes are also provided between two adjacent grooves.

Several ventilation holes are arranged around the end surface of the above-mentioned bearing chamber.

Another object of the present utility model is to provide an outer rotor, which has grooves on the outer side wall of the end cover beside the installation hole on the flange of the end cover, which enlarges the assembly area around the installation hole and increases the The end cap is strong, easy to assemble, and improves assembly efficiency, thereby improving production efficiency.

The outer rotor of the utility model is realized through the following technical solutions.

An outer rotor, including a hollow outer rotor and end covers installed at both ends of the outer rotor, at least one end cover is detachable from the outer rotor, the detachable end cover includes an end cover body, one end of the end cover body is open and There is a flanging protruding from the edge, and a bearing chamber is set in the middle of the other end of the end cover, and several mounting holes are set on the flanging, and screw holes corresponding to the mounting holes are set on one end surface of the outer rotor, and the screws pass through the mounting holes The end cover body is installed on the outer rotor, and a groove is recessed on the outer side wall of the end cover body beside the installation hole.

A positioning boss protrudes from the above-mentioned flange axially, and an assembly hole is provided on one end surface of the outer rotor, and the assembly hole is fitted and matched with the positioning boss for positioning.

The third purpose of the utility model is to provide an outer rotor motor, which has grooves on the side of the mounting hole on the flange of the end cover and on the outer wall of the end cover body, thereby enlarging the assembly area around the mounting hole, The strength of the end cover is increased, the assembly is facilitated, the assembly efficiency is improved, and thus the production efficiency is improved.

The outer rotor motor of the utility model is realized through the following technical solutions.

An external rotor motor includes an inner stator, an outer rotor and a rotating shaft. The rotating shaft is installed and connected to the inner stator. End covers are arranged at both ends of the outer rotor. The rotating shaft is installed in the bearing chamber of the end cover through bearing support. At least one end cover is provided. It is detachable from the outer rotor. The detachable end cover includes an end cover body. One end of the end cover body is open and a flanging protrudes from the edge. A bearing chamber is set in the middle of the other end of the end cover body. A number of installation holes are set on the upper surface of the outer rotor, and screw holes corresponding to the installation holes are arranged on one end surface of the outer rotor. The screws pass through the installation holes to install the end cover body on the outer rotor. Concave with grooves.

A positioning boss protrudes from the above-mentioned flange axially, and an assembly hole is provided on one end surface of the outer rotor, and the assembly hole is fitted and matched with the positioning boss for positioning.

Compared with the prior art, the utility model has the following advantages: 1) beside the mounting hole on the flange of the end cover, a groove is recessed on the outer side wall of the end cover body, which enlarges the assembly area around the mounting hole and increases the The structural strength of the end cover protects the structure of the end cover at the same time, and reduces the cost of mold making and production; 2) There is a positioning boss protruding from the flange axially, and the positioning boss is embedded with the assembly hole on one end surface of the outer rotor Cooperate, adopt point-to-hole installation structure, make positioning fast and accurate, installation precision is high, easy to assemble, improve assembly efficiency, and thus improve production efficiency.

Description of drawings:

Fig. 1 is the structure diagram of the end cap of the present utility model.

Fig. 2 is a structural diagram of the outer rotor of the present invention.

Fig. 3 is a partial sectional view of the utility model.

Fig. 4 is a structural diagram of the outer rotor motor of the present invention.

FIG. 5 is a sectional view of FIG. 4 .

Detailed ways:

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Specific embodiment 1

As shown in Figure 1, a motor end cover includes an end cover body 1, one end of the end cover body 1 is open and a flange 2 protrudes outward from the edge, and a bearing chamber 3 is provided in the middle of the other end of the end cover body 1 A plurality of mounting holes 4 are provided on the flange 2, and grooves 6 are recessed on the side of the mounting holes 4 and on the outer wall of the end cover body 1.

Wherein the flanging 2 protrudes axially with a positioning boss 5; the positioning boss 5 is a cylinder; on the outer wall of the end cover body 1, several ventilation holes 7 are arranged between two adjacent grooves 6; A number of ventilation holes 8 are arranged around the end face of the bearing chamber 3 .

Specific embodiment 2

As shown in Figure 2 and Figure 3, an external rotor includes a hollow rotor 9 and end covers installed at both ends of the rotor 9, at least one end cover is detachable from the rotor 9, and the detachable end cover includes an end cover Body 1, one end of the end cover body 1 is open and a flange 2 protrudes outward from the edge, a bearing chamber 3 is set in the middle of the other end of the end cover body 1, and several mounting holes 4 are set on the flange 2, and the rotor 9 A screw hole 10 corresponding to the mounting hole 4 is provided on one end surface of the screw 12, and the end cover body 1 is mounted on the rotor 9 through the mounting hole 4 by the screw 12. Next to the mounting hole 4, the outer wall of the end cover body 1 is recessed. Groove 6.

Wherein the flange 2 protrudes axially with a positioning boss 5 , and one end surface of the outer rotor 9 is provided with an assembly hole 11 , and the assembly hole 11 is fitted with the positioning boss 5 for positioning.

Specific embodiment 3

As shown in Fig. 3, Fig. 4 and Fig. 5, an outer rotor motor includes an inner stator 13, an outer rotor 9 and a rotating shaft 14, the rotating shaft 14 is installed and connected to the inner stator 13, and end covers are arranged at both ends of the outer rotor 9, The rotating shaft 14 is installed in the bearing chamber 3 of the end cover through bearing support. At least one end cover is detachable from the outer rotor 9. The detachable end cover includes an end cover body 1, one end of which is open and at the edge There is a flanging 2 protruding outward, a bearing chamber 3 is set in the middle of the other end of the end cover body 1, several mounting holes 4 are set on the flanging 2, and a screw corresponding to the mounting hole 4 is set on one end surface of the outer rotor 9. The hole 10 and the screw 12 pass through the installation hole 4 to install the end cover body 1 on the outer rotor 9, and beside the installation hole 4, a groove 6 is recessed on the outer side wall of the end cover body 1 .

Wherein the flange 2 protrudes axially with a positioning boss 5 , and one end surface of the outer rotor 9 is provided with an assembly hole 11 , and the assembly hole 11 is fitted with the positioning boss 5 for positioning.

The above-mentioned embodiment is the preferred embodiment of the present utility model, but the embodiment of the present utility model is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present utility model are all All equivalent replacement methods are included in the protection scope of the present utility model.

Claims (9)

1. A motor end cover, including an end cover body (1), a bearing chamber (3) is provided in the middle of one end of the end cover body (1), and the other end of the end cover body (1) is open and extends outward at the edge There is a flange (2), and several installation holes (4) are arranged on the flange (2), and it is characterized in that: there is a recess on the outer wall of the end cover body (1) next to the installation hole (4). groove (6). 2. A motor end cover according to claim 1, characterized in that a positioning boss (5) protrudes axially from the flange (2). 3. A motor end cover according to claim 2, characterized in that the positioning boss (5) is a cylinder. 4. A motor end cover according to claim 1 or 2, characterized in that: on the outer wall of the end cover body (1), there are several ventilation holes between two adjacent grooves (6). hole (7). 5. A motor end cover according to claim 1, characterized in that several ventilation holes (8) are arranged around the end surface of the bearing chamber (3). 6. An outer rotor, including a hollow outer rotor (9) and end caps installed at both ends of the outer rotor (9), at least one end cap is detachable from the outer rotor (9), and the detachable end cap includes end caps The cover body (1), one end of the end cover body (1) is open and has a flanging (2) protruding outward from the edge, and a bearing chamber (3) is arranged in the middle of the other end of the end cover body (1). Several installation holes (4) are arranged on (2), and screw holes (10) corresponding to the installation holes (4) are arranged on one end surface of the outer rotor (9), and the screws (12) connect the end cover through the installation holes (4). The body (1) is installed on the outer rotor (9), and it is characterized in that a groove (6) is recessed on the outer wall of the end cover body (1) beside the installation hole (4). 7. An outer rotor according to claim 6, characterized in that: a positioning boss (5) protrudes axially from the flange (2), and an assembly hole (11) is provided on one end surface of the outer rotor (9). ), the assembly hole (11) is fitted and positioned with the positioning boss (5). 8. An outer rotor motor, comprising an inner stator (13), an outer rotor (9) and a rotating shaft (14), the rotating shaft (14) is installed and connected to the inner stator (13), and the outer rotor (9) is provided with terminal The cover, the rotating shaft (14) is installed in the bearing chamber (3) of the end cover through bearing support, at least one end cover and the outer rotor (9) are detachable, and the detachable end cover includes the end cover body (1), One end of the end cover body (1) is open and a flanging (2) protrudes outward from the edge, and a bearing chamber (3) is arranged in the middle of the other end of the end cover body (1), and several One mounting hole (4), one end surface of the outer rotor (9) is provided with a screw hole (10) corresponding to the mounting hole (4), and the screw (12) installs the end cover body (1) to the mounting hole (4) through the mounting hole (4). On the outer rotor (9), it is characterized in that a groove (6) is recessed on the outer wall of the end cover body (1) beside the mounting hole (4). 9. An outer rotor motor according to claim 8, characterized in that: a positioning boss (5) protrudes axially from the flange (2), and an assembly hole ( 11), the assembly hole (11) is fitted with the positioning boss (5) for positioning.

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