Motor applying novel carbon brush support

Abstract

The utility model relates to the technical field of motor structures, and particularly discloses a motor applying a novel carbon brush support. Comprising a stator core; an upper end cover is arranged on the stator iron core, the stator iron core is covered with the upper end cover, and fan blades are further arranged above the upper end cover; the upper end of the stator core is fixedly provided with a carbon brush support, and the carbon brush support is located between the stator core and the fan blades. The lower end of the stator core is fixedly provided with a quadrupole support. The stator core is also provided with a coil holder; the stator core comprises a middle inner cavity, and a rotor assembly is arranged in the inner cavity; the carbon brush support comprises a circular center boss, and a boss through hole is formed in the middle of the center boss. Four main frames transversely extend outwards from the lower end of the outer wall of the central boss; the motor applying the novel carbon brush support has the advantages of being simple in structure, not prone to shaking, easy to install and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of motor structures, in particular to a motor using a novel carbon brush bracket. Background Art

[0002] The motor is a very commonly used industrial product, mainly including a stator core, a rotor assembly, a carbon brush assembly, a carbon brush holder, a bracket, etc. Among them, the carbon brush assembly is installed on the carbon brush holder. Many current motors have components that are prone to shaking due to structural design problems, especially carbon brush assemblies, which are large in number and prone to shaking, causing unnecessary trouble and defects, and are in urgent need of improvement. Utility Model Content

[0003] The utility model aims to provide a motor using a novel carbon brush bracket, which has the advantages of simple structure, not easy to shake, easy to install and the like.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a motor using a new carbon brush holder, comprising a stator core; an upper end cover is provided on the stator core, the upper end cover is covered on the stator core, and a fan blade is also provided above the upper end cover; a carbon brush holder is fixedly installed on the upper end of the stator core, and the carbon brush holder is located between the stator core and the fan blade; a four-pole holder is fixedly installed on the lower end of the stator core;

[0005] The stator core is also provided with a bobbin; the stator core includes an inner cavity in the middle, and a rotor assembly is provided in the inner cavity;

[0006] The carbon brush bracket comprises a circular central boss, wherein a boss through hole is provided in the middle of the central boss; four main frames are extended outwardly from the lower end of the outer wall of the central boss, namely, a first main frame, a second main frame, a third main frame and a fourth main frame; the four main frames are evenly distributed;

[0007] Each main frame is provided with a strip-shaped through-hole slot, which are respectively a first strip-shaped through-hole slot, a second strip-shaped through-hole slot, a third strip-shaped through-hole slot and a fourth strip-shaped through-hole slot; each strip-shaped through-hole slot divides the corresponding main frame into two brackets;

[0008] The first strip-shaped through-hole groove divides the first main frame into a first bracket and a first second bracket; the first bracket is provided with a first semicircular positioning groove, and the first second bracket is provided with a first second semicircular positioning groove; the first semicircular positioning groove and the first second semicircular positioning groove are arranged oppositely; the first semicircular positioning groove and the first second semicircular positioning groove jointly form a carbon brush mounting portion with a rectangular middle portion and two semicircular ends;

[0009] The second main frame, the third main frame and the fourth main frame all have the same structure as the first main frame;

[0010] A carbon brush assembly is installed on the carbon brush installation portion.

[0011] Furthermore, the number of the carbon brush assemblies is four, including a first carbon brush box, a second carbon brush box, a third carbon brush box and a fourth carbon brush box; the four carbon brush boxes are the same in size and shape;

[0012] The first carbon brush box comprises a long strip-shaped box body, the box body is provided with a box body through hole, and a carbon brush sleeve is arranged in the box body through hole; two semicircular bosses are respectively arranged on the outer walls of both sides of the box body, and screw holes are arranged on the bosses; the two bosses of the first carbon brush box are respectively placed in the first semicircular positioning groove and the first second semicircular positioning groove;

[0013] The bottom ends of the first semicircular positioning groove and the first second semicircular positioning groove are both provided with carbon brush positioning holes; the screw holes on the boss correspond to the carbon brush positioning holes.

[0014] Furthermore, the tail end of the first bracket and the tail end of the first second bracket are connected through a transverse plate; a positioning protrusion is also provided on the bottom side of the transverse plate; the stator core includes an upper end face, a plurality of carbon brush mounting holes are provided on the upper end face, and the positioning protrusion is fixedly inserted in the carbon brush mounting hole.

[0015] Furthermore, the rotor assembly includes a rotor core, a circular rotor through hole is provided in the middle of the rotor core; a commutator is installed at the upper end of the rotor core; a commutator through hole is provided in the middle of the commutator;

[0016] Furthermore, a bracket through hole is provided in the middle of the quadrupole bracket; the upper end cover is provided with an end cover through hole, and the bottom end of the fan blade is provided with a fan blade positioning hole; the motor is also provided with a rotating shaft; the rotating shaft passes through the bracket through hole, the rotor through hole, the commutator through hole, and the boss through hole in sequence, and is inserted into the fan blade positioning hole to be fixedly connected to the fan blade; the central boss extends above the end cover through hole.

[0017] Furthermore, the transverse plate is provided with a first mounting hole; the quadrupole bracket is provided with a bracket mounting hole; the stator core is provided with a stator through hole; the external connecting part passes through the bracket mounting hole, then passes through the stator through hole, and is fixedly installed in the first mounting hole.

[0018] The motor of the utility model comprises a stator core; an upper end cover is provided on the stator core, the upper end cover is covered on the stator core, and a fan blade is also provided above the upper end cover; a carbon brush bracket is fixedly installed on the upper end of the stator core, and the carbon brush bracket is located between the stator core and the fan blade; a quadrupole bracket is fixedly installed on the lower end of the stator core; the carbon brush bracket comprises a circular central boss, and four main frames are extended outward laterally from the lower end of the outer wall of the central boss, which are respectively a first main frame, a second main frame, a third main frame and a fourth main frame; the four main frames are evenly distributed; each main frame is provided with a strip through hole groove, and each strip through hole groove divides the corresponding main frame into two brackets; each bracket is provided with a semicircular positioning groove, so that in each main frame, two semicircular positioning grooves arranged oppositely together form a carbon brush mounting portion with a rectangular middle part and two semicircular ends, which can be used in conjunction with a carbon brush box provided with a semicircular boss, so that after the carbon brush box is installed, it is stable and does not shake, and has a good practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of a motor using a novel carbon brush bracket of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a motor using a novel carbon brush bracket of the utility model without the upper end cover;

[0022] Figure 3 It is a schematic diagram of a partial explosion structure of a motor using a novel carbon brush bracket of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the carbon brush bracket separation of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a motor using a novel carbon brush holder without the carbon brush holder of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the carbon brush bracket and the carbon brush box of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the carbon brush bracket of the utility model;

[0027] Figure 8 It is a schematic diagram of the bottom structure of the carbon brush bracket of the utility model. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1 to 8 The figure is a schematic diagram of the structure of the motor using the novel carbon brush holder of the utility model; the motor of the utility model comprises a stator core 1; an upper end cover 2 is provided on the stator core 1, the upper end cover 2 covers the stator core 1, and a fan blade 3 is further provided above the upper end cover 2; a carbon brush holder 4 is fixedly installed on the upper end of the stator core 1, and the carbon brush holder 4 is located between the stator core 1 and the fan blade 3; a quadrupole holder 5 is fixedly installed on the lower end of the stator core 1;

[0031] The stator core 1 is also provided with a bobbin 6; the stator core 1 includes an inner cavity in the middle, and a rotor assembly 7 is provided in the inner cavity;

[0032] The carbon brush bracket 4 includes a circular central boss 41, and a boss through hole 4101 is provided in the middle of the central boss 41; four main frames extend outward laterally from the lower end of the outer wall of the central boss 41, namely a first main frame 411, a second main frame 412, a third main frame 413 and a fourth main frame 414; the four main frames are evenly distributed;

[0033] Each main frame is provided with a strip-shaped through hole slot, which are a first strip-shaped through hole slot 421, a second strip-shaped through hole slot 422, a third strip-shaped through hole slot 423 and a fourth strip-shaped through hole slot 424; each strip-shaped through hole slot divides the corresponding main frame into two brackets;

[0034] The first strip-shaped through-hole groove 421 divides the first main frame into a first bracket 4111 and a first second bracket 4112; the first bracket 4111 is provided with a first semicircular positioning groove 4021, and the first second bracket 4112 is provided with a first second semicircular positioning groove 4022; the first semicircular positioning groove 4021 and the first second semicircular positioning groove 4022 are arranged opposite to each other; the first semicircular positioning groove 4021 and the first second semicircular positioning groove 4022 jointly form a carbon brush mounting portion with a rectangular middle portion and two semicircular ends;

[0035] The second main frame 412, the third main frame 413 and the fourth main frame 414 all have the same structure as the first main frame 411;

[0036] The carbon brush mounting portion is provided with a carbon brush assembly 8; the number of the carbon brush assemblies 8 is four, including a first carbon brush box 81, a second carbon brush box, a third carbon brush box and a fourth carbon brush box; the four carbon brush boxes are of the same size and shape;

[0037] The first carbon brush box 81 comprises a long strip box body 811, the box body 811 is provided with a box body through hole 812, and a carbon brush sleeve 813 is provided in the box body through hole 812; two outer walls on both sides of the box body 811 are respectively provided with two semicircular bosses 814, and screw holes 815 are provided on the bosses 814; the two bosses 814 of the first carbon brush box 81 are respectively placed in the first semicircular positioning groove 4021 and the first second semicircular positioning groove 4022;

[0038] A carbon brush positioning hole 4023 is provided at the bottom of each of the first semicircular positioning groove 4021 and the first second semicircular positioning groove 4022 ; and the screw hole 815 on the boss 814 corresponds to the carbon brush positioning hole 4023 .

[0039] In the utility model, the tail end of the first bracket 4111 and the tail end of the first second bracket 4112 are connected by a transverse plate 43; a positioning protrusion 432 is also provided on the bottom side of the transverse plate 43; the stator core 1 includes an upper end surface 11, and a plurality of carbon brush mounting holes 111 are provided on the upper end surface, and the positioning protrusion 432 is fixedly inserted in the carbon brush mounting hole 111.

[0040] Therefore, the carbon brush bracket of the utility model is integrally formed, including a circular central boss, and four main frames are extended laterally outward from the lower end of the outer wall of the central boss, namely the first main frame, the second main frame, the third main frame and the fourth main frame; the four main frames are evenly distributed; each main frame is provided with a strip through hole groove, and each strip through hole groove divides the corresponding main frame into two brackets; each bracket is provided with a semicircular positioning groove, so that in each main frame, the two relatively arranged semicircular positioning grooves jointly form a carbon brush mounting part with a rectangular middle part and two semicircular ends, which can be used in conjunction with a carbon brush box with a semicircular boss, so that after the carbon brush box is installed, it is stable and does not shake, and the practical effect is good.

[0041] As a preferred technical solution, the rotor assembly 7 includes a rotor core 71 , a circular rotor through hole is provided in the middle of the rotor core 71 ; a commutator 72 is installed at the upper end of the rotor core 71 ; a commutator through hole is provided in the middle of the commutator 72 .

[0042] In the utility model, a bracket through hole 51 is provided in the middle of the quadrupole bracket 5; the upper end cover 2 is provided with an end cover through hole, and the bottom end of the fan blade 3 is provided with a fan blade positioning hole 31; the motor is also provided with a rotating shaft 9; the rotating shaft 9 passes through the bracket through hole 51, the rotor through hole, the commutator through hole, and the boss through hole in sequence, and is inserted into the fan blade positioning hole 31, and is fixedly connected to the fan blade 3; the central boss 41 extends above the end cover through hole.

[0043] The transverse plate 43 is provided with a first mounting hole 431 ; the quadrupole bracket is provided with a bracket mounting hole 52 ; the stator core 1 is provided with a stator through hole 112 ; the external connecting piece passes through the bracket mounting hole 52 , then passes through the stator through hole, and is fixedly installed in the first mounting hole 431 .

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor using a novel carbon brush holder, comprising a stator core (1); characterized in that: The stator core (1) is provided with an upper end cover (2), the upper end cover (2) covers the stator core (1), and a fan blade (3) is also provided above the upper end cover (2); a carbon brush bracket (4) is fixedly mounted on the upper end of the stator core (1), and the carbon brush bracket (4) is located between the stator core (1) and the fan blade (3); a quadrupole bracket (5) is fixedly mounted on the lower end of the stator core (1); The stator core (1) is also provided with a bobbin (6); the stator core (1) comprises an inner cavity in the middle, and a rotor assembly (7) is provided in the inner cavity; The carbon brush bracket (4) comprises a circular central boss (41), wherein a boss through hole (4101) is provided in the middle of the central boss (41); four main frames are extended outwardly from the lower end of the outer wall of the central boss (41) in a transverse direction, namely a first main frame (411), a second main frame (412), a third main frame (413) and a fourth main frame (414); the four main frames are evenly distributed; Each main frame is provided with a strip-shaped through hole slot, which are respectively a first strip-shaped through hole slot (421), a second strip-shaped through hole slot (422), a third strip-shaped through hole slot (423) and a fourth strip-shaped through hole slot (424); each strip-shaped through hole slot divides the corresponding main frame into two brackets; The first strip-shaped through-hole groove (421) divides the first main frame into a first bracket (4111) and a first second bracket (4112); the first bracket (4111) is provided with a first semicircular positioning groove (4021), and the first second bracket (4112) is provided with a first second semicircular positioning groove (4022); the first semicircular positioning groove (4021) and the first second semicircular positioning groove (4022) are arranged opposite to each other; the first semicircular positioning groove (4021) and the first second semicircular positioning groove (4022) jointly form a carbon brush mounting portion with a rectangular middle portion and two semicircular ends; The second main frame (412), the third main frame (413) and the fourth main frame (414) all have the same structure as the first main frame (411); A carbon brush assembly (8) is installed on the carbon brush installation portion.

2. The motor using the novel carbon brush holder according to claim 1 is characterized in that: The number of the carbon brush assemblies (8) is four, including a first carbon brush box (81), a second carbon brush box, a third carbon brush box and a fourth carbon brush box; the four carbon brush boxes are all the same in size and shape; The first carbon brush box (81) comprises a long strip-shaped box body (811), the box body (811) is provided with a box body through hole (812), and a carbon brush sleeve (813) is arranged in the box body through hole (812); two outer walls on both sides of the box body (811) are respectively provided with two semicircular bosses (814), and the bosses (814) are provided with screw holes (815); the two bosses (814) of the first carbon brush box (81) are respectively placed in the first semicircular positioning groove (4021) and the first second semicircular positioning groove (4022); The bottom ends of the first semicircular positioning groove (4021) and the first second semicircular positioning groove (4022) are both provided with carbon brush positioning holes (4023); the screw holes (815) on the boss (814) correspond to the carbon brush positioning holes (4023).

3. The motor using the novel carbon brush holder according to claim 1 is characterized in that: The tail end of the first bracket (4111) and the tail end of the first second bracket (4112) are connected via a transverse plate (43); a positioning protrusion (432) is also provided on the bottom side of the transverse plate (43); the stator core (1) comprises an upper end surface (11), a plurality of carbon brush mounting holes (111) are provided on the upper end surface, and the positioning protrusion (432) is fixedly inserted in the carbon brush mounting hole (111).

4. The motor using the novel carbon brush holder according to claim 1 is characterized in that: The rotor assembly (7) comprises a rotor core (71), a circular rotor through hole is provided in the middle of the rotor core (71); a commutator (72) is installed at the upper end of the rotor core (71); and a commutator through hole is provided in the middle of the commutator (72).

5. The motor using the novel carbon brush holder according to claim 4 is characterized in that: A bracket through hole (51) is provided in the middle of the quadrupole bracket (5); the upper end cover (2) is provided with an end cover through hole, and a blade positioning hole (31) is provided at the bottom end of the fan blade (3); the motor is also provided with a rotating shaft (9); the rotating shaft (9) passes through the bracket through hole (51), the rotor through hole, the commutator through hole, and the boss through hole in sequence, and is inserted into the blade positioning hole (31) to be fixedly connected to the fan blade (3); the central boss (41) extends above the end cover through hole.

6. The motor using the novel carbon brush holder according to claim 3 is characterized in that: The transverse plate (43) is provided with a first mounting hole (431); the quadrupole bracket is provided with a bracket mounting hole (52); the stator core (1) is provided with a stator through hole (112); the external connecting piece passes through the bracket mounting hole (52), then passes through the stator through hole, and is fixedly mounted in the first mounting hole (431).

Images