CN213027644U

CN213027644U - Plastic-sealed motor without end cover

Info

Publication number: CN213027644U
Application number: CN202021652689.3U
Authority: CN
Inventors: 吕承业
Original assignee: Shengzhou Lichi Motor Co ltd
Current assignee: Shengzhou Lichi Motor Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-04-20
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a plastic-sealed motor without end cover, which comprises a plastic-sealed body and a rotor assembly, wherein the center of the plastic-sealed body is provided with a cylindrical holding cavity, the rotor assembly is placed in the holding cavity, the top end surface of the plastic-sealed body is provided with a mounting seat which is upwards protruded and is surrounded at the outer edge of the holding cavity, a lining seat is lined in the mounting seat, a bearing seat with a bearing is arranged on the lining seat, an output shaft of the rotor assembly penetrates out of the bearing seat, the mounting seat is provided with an outer cover, the outer cover limits and fixes the lining seat in the mounting seat, compared with the prior art, the utility model saves the structure of the existing metal end cover, adopts the ways of the lining seat and the outer cover to fix the bearing seat, is convenient for the installation of the bearing, ensures the coaxial distribution of the bearing and the rotor assembly, utilizes the way of the outer cover to close the lining seat, improves the firmness of the installation of the bearing, protects the bearing and the, the normal operation of the motor is ensured.

Description

Plastic-sealed motor without end cover

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of plastic envelope motor structure especially relates to a plastic envelope does not have end cover motor.

[ background of the invention ]

The plastic package motor is formed by integrally packaging a stator core, a winding and the like of the motor by engineering plastics by adopting a plastic packaging technology, can eliminate the traditional motor stator insulation treatment process and a metal shell of a common motor, and is widely applied to household appliances such as an integrated stove, a range hood and the like.

The plastic package motor comprises a plastic package body, a rotor assembly and an end cover, wherein the plastic package body is provided with a stator core and a coil, the rotor assembly and the end cover are arranged in the plastic package body and positioned at the center of the stator core, the end cover is arranged at the front end or the rear end of the plastic package body, a bearing is usually arranged on the end cover in order to enable the rotor assembly to rotate more flexibly, and meanwhile, the end cover is generally made of metal. Like the utility model patent of patent No. ZL201520730040.1, disclose an insulating type motor for lampblack absorber, including stator and rotor, the stator outside is sealed there is plastic casing, and plastic casing's both ends are provided with front end housing and rear end cap respectively. According to the plastic package motor with the structure, the end cover is fixed in an inserting mode, the end cover is extremely insecure, and the coaxiality of the inner bearing of the plastic package motor is not easy to adjust. And it exposes in the both ends of plastic envelope motor, when it receives external force influence such as bumping, colliding, the end cover will take place to squint or the breakage, influences its interior bearing to destroy the axiality of rotor assembly, influence the normal use of motor.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, providing a plastic envelope does not have end cover motor, save metal end cover structure, improve the fixed fastness of bearing, ensure rotor assembly's normal rotation.

For realizing the above-mentioned purpose, the utility model provides a plastic envelope does not have end cover motor, the plastic envelope body and the setting that have stator core and coil are in including the plastic envelope in and be located the rotor assembly at stator core center, the holding chamber of cylindricality is seted up at plastic envelope body center, the rotor assembly is placed the holding intracavity, the top end face of plastic envelope body is equipped with to make progress the arch and enclose and establish the mount pad on holding chamber outer edge, the inside lining has the liner in the mount pad, set up the bearing frame that has the bearing on the liner, the output shaft of rotor assembly is followed wear out in the bearing frame, be equipped with the enclosing cover on the mount pad, the enclosing cover is spacing to be fixed the liner in the mount pad.

Preferably, a limiting step is arranged between the mounting seat and the accommodating cavity, slots with uniform intervals are formed in the inner wall of the mounting seat, a socket protruding outwards is arranged on the outer wall of the lining seat, and the lining seat is limited in the mounting seat through the matching of the socket and the slots.

Preferably, the lining seat is provided with an installation chamber, the bearing seat is fixed in the installation chamber, the bearing seat is provided with a fixing edge extending outwards in the radial direction, and the fixing edge is overlapped on the lining seat and is pressed and fixed by the outer cover.

Preferably, the bottom of the plastic package body is recessed inwards to form a bearing cavity, a bearing seat with a bearing is arranged in the bearing cavity, and the tail end of the output shaft in the rotor assembly is installed in the bearing.

Preferably, the lining seat and the outer cover are made of the same material as the plastic package body, and both are made of unsaturated polyester fiber reinforced plastic.

The utility model has the advantages that: compared with the prior art, the utility model discloses save the structure of current metal end cover, the mode that adopts lining seat and enclosing cover is fixed the bearing frame, the installation of the bearing of not only being convenient for, and the coaxial distribution of guarantee bearing and rotor assembly utilizes the enclosing cover lid to close the mode of lining seat, improves the firmness of bearing installation to protect bearing and bearing frame in the plastic envelope, prevent that it from receiving external force and causing damage or skew, guarantee the normal operating of motor.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the connection between the plastic package body and the rotor assembly according to the present invention;

in the figure: 1-stator core, 2-coil, 3-plastic package body, 4-rotor assembly, 5-containing cavity, 6-mounting seat, 7-lining seat, 8-bearing, 9-bearing seat, 10-outer cover, 11-limiting step, 12-slot, 13-socket, 14-mounting chamber and 15-fixing edge.

[ detailed description ] embodiments

Referring to fig. 1 and 2, the utility model discloses a plastic envelope has stator core 1 and coil 2's plastic envelope body 3 and sets up just be located the rotor assembly 4 at stator core 1 center in the plastic envelope body 3, the holding chamber 5 of cylindricality is seted up at plastic envelope body 3 center, rotor assembly 4 is placed in the holding chamber 5, the top end face of plastic envelope body 3 is equipped with to make progress the arch and encloses and establish the mount pad 6 on 5 outer edges in holding chamber, inside the lining has a liner 7 in the mount pad 6, set up the bearing frame 9 that has bearing 8 on the liner 7, the output shaft of rotor assembly 4 is followed wear out in the bearing frame 9, be equipped with enclosing cover 10 on the mount pad 6, enclosing cover 10 is with the spacing fixing of liner 7 in the mount pad 6. The utility model discloses when the assembly, at first put into rotor assembly 4 in the holding chamber 5, make it be located stator core 1's center, then put into the lining seat 7 in to mount pad 6 again to placing bearing frame 9 to it, establish on mount pad 6 with enclosing cover 10 lid at last, can adjust rotor assembly 4's installation axiality through the position of adjustment lining seat 7.

Specifically, a limiting step 11 is arranged between the mounting seat 6 and the accommodating cavity 5, slots 12 with uniform intervals are arranged on the inner wall of the mounting seat 6, outward convex sockets 13 are arranged on the outer wall of the lining seat 7, and the lining seat 7 is limited in the mounting seat 6 through the matching of the sockets 13 and the slots 12. By means of the structure that the socket 13 is matched with the slot 12, not only is the lining seat 7 fixed more firmly, but also the lining seat can be prevented from rotating along with the rotor assembly 4.

Specifically, an installation chamber 14 is arranged on the lining seat 7, the bearing seat 9 is fixed in the installation chamber 14, a fixing edge 15 extending outwards in the radial direction is arranged on the bearing seat 9, and the fixing edge 15 is erected on the lining seat 7 and is pressed and fixed by the outer cover 10. The mounting chamber 14 cooperates with the outer cover 10 to make the mounting of the bearing housing 9 more secure.

Specifically, the bottom of the plastic package body 3 is recessed inwards to form a bearing cavity, a bearing seat 9 with a bearing 8 is arranged in the bearing cavity, and the tail end of an output shaft in the rotor assembly 4 is installed in the bearing 8. The bearing cavity and the plastic package body 3 are directly molded during packaging, so that the assembly is convenient.

Specifically, the material of the lining seat 7 and the material of the outer cover 10 are the same as the material of the plastic package body 3, and are both unsaturated polyester fiber reinforced plastic, the materials have extremely high insulating property, and the mechanical strength is almost the same as that of the traditional end cover.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a plastic envelope does not have end cover motor, has plastic-sealed body (3) and the setting of stator core (1) and coil (2) to be in including the plastic envelope in (3) and be located rotor assembly (4) at stator core (1) center, its characterized in that: the rotor assembly is characterized in that a cylindrical containing cavity (5) is formed in the center of the plastic package body (3), the rotor assembly (4) is placed in the containing cavity (5), an upward bulge is arranged on the top end face of the plastic package body (3) and surrounds a mounting seat (6) arranged on the outer edge of the containing cavity (5), a lining seat (7) is lined in the mounting seat (6), a bearing seat (9) with a bearing (8) is arranged on the lining seat (7), an output shaft of the rotor assembly (4) penetrates out of the bearing seat (9), an outer cover (10) is arranged on the mounting seat (6), and the lining seat (7) is limited and fixed in the mounting seat (6) by the outer cover (10).

2. The plastic-sealed motor without end cap according to claim 1, wherein: spacing step (11) are equipped with between mount pad (6) and holding chamber (5), be equipped with slot (12) that the interval is even on the inner wall of mount pad (6), be equipped with outside bellied socket (13) on lining seat (7) outer wall, lining seat (7) are spacing in mount pad (6) through socket (13) and slot (12) cooperation.

3. A plastic-encapsulated endless-cover motor according to claim 1 or 2, characterized in that: the lining seat is characterized in that an installation chamber (14) is arranged on the lining seat (7), the bearing seat (9) is fixed in the installation chamber (14), a fixing edge (15) extending outwards in the radial direction is arranged on the bearing seat (9), and the fixing edge (15) is erected on the lining seat (7) and is pressed and fixed by the outer cover (10).

4. The plastic-sealed motor without end cap according to claim 3, wherein: the bottom of the plastic package body (3) is sunken inwards to form a bearing cavity, a bearing seat (9) with a bearing (8) is arranged in the bearing cavity, and the tail end of an output shaft in the rotor assembly (4) is installed in the bearing (8).

5. The plastic-sealed motor without end cap according to claim 1, wherein: the lining seat (7) and the outer cover (10) are made of the same material as the plastic package body (3) and are both unsaturated polyester fiber reinforced plastic package.