Miniature motor commutator installation structure

Abstract

The utility model belongs to the technical field of commutator installation, and particularly relates to a micro motor commutator installation structure, which comprises a fixed disc and a reinforced installation mechanism, the reinforced installation mechanism is connected to the tail end of a commutator main body and is fixed in a rear end cover of a motor by utilizing the fixed disc, and the reinforced installation mechanism comprises an installation disc, the mounting disc is fixed at the tail end of the commutator main body; one end of the reinforcing supporting leg is fixedly connected with the mounting disc, and the other end of the reinforcing supporting leg is rotationally connected with the fixing disc; through the arrangement of the reinforcing installation mechanism, the reinforcing installation mechanism is connected to the tail end of the commutator main body and is fixed in the rear end cover of the motor through the fixing disc, the fixing disc is also used for fixing the electric brush, and the reinforcing installation mechanism can improve the stability of the commutator main body fixed on the motor armature. Position deviation of the commutator main body caused by thermal expansion and cold contraction and centrifugal force is effectively avoided, the working safety of the commutator main body is improved, and the service life of the commutator main body is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of commutator installation, and in particular relates to a micro motor commutator installation structure. Background Art

[0002] Micro motors are a type of electric motors with small size and capacity, and their output power is generally below a few hundred watts. The commutator, also known as the "rectifier", is an important component on the armature of DC motors and AC commutator motors. It is composed of many copper sheets separated by mica sheets and is cylindrical or disc-shaped. Each copper sheet is connected to several armature winding elements. When the armature rotates, the copper sheets successively contact the fixed brushes. In DC motors, the AC power in the armature winding is converted into DC power between the brushes through brushes and commutators. In AC commutator motors, the frequency of the AC power between the brushes is made to meet the working requirements.

[0003] In the prior art, the commutator is usually directly fixed on the motor armature and connected to the armature winding elements, and rotates with the rotation of the motor armature winding. However, the commutator lacks the necessary auxiliary supporting components, so that after working for a long time, the commutator is prone to position displacement due to thermal expansion and contraction and centrifugal force, affecting the safe operation of the commutator.

[0004] In order to solve the above problems, the present application proposes a micro motor commutator installation structure. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a micro motor commutator installation structure, which has the characteristics of easy use and high stability.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a micro motor commutator mounting structure, including a fixing plate and a reinforcing mounting mechanism, the reinforcing mounting mechanism is connected to the tail end of the commutator body and is fixed in the rear end cover of the motor by the fixing plate, the reinforcing mounting mechanism includes:

[0007] A mounting plate, the mounting plate being fixed to the rear end of the commutator body;

[0008] A reinforcement support foot, one end of which is fixedly connected to the mounting plate, and the other end of which is rotatably connected to the fixing plate.

[0009] Preferably, a plurality of the reinforcement support legs are evenly spaced along the circumferential direction.

[0010] Preferably, the reinforced support legs are diffused from the mounting plate to the fixing plate.

[0011] Preferably, the reinforced installation mechanism further comprises:

[0012] Locking bolts: the mounting plate is fixed to the rear end of the commutator body by a plurality of locking bolts which are evenly spaced along the circumferential direction.

[0013] Preferably, the reinforced installation mechanism further comprises:

[0014] The reinforcing support foot is rotatably connected to the fixing plate by means of the bearing.

[0015] Preferably, a plurality of positioning grooves are provided at the rear end of the inner wall of the commutator body and are distributed at equal intervals in the circumferential direction, and a positioning protrusion is fixed on the end surface of the mounting plate and embedded in the positioning groove.

[0016] Preferably, the outer wall of the positioning protrusion fits the inner wall of the positioning groove.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the utility model, a reinforced mounting mechanism is provided, which is connected to the tail end of the commutator body and fixed in the rear end cover of the motor by a fixed disk, and the fixed disk is also used to fix the brushes. The reinforced mounting mechanism can improve the stability of the commutator body fixed on the armature of the motor, effectively avoid the position deviation of the commutator body due to thermal expansion and contraction and centrifugal force, and improve the working safety and service life of the commutator body.

[0019] Other additional advantages and beneficial effects of the present application will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the axonometric structure of the utility model;

[0023] Figure 3 For this utility model Figure 2 A in the figure is an enlarged structural diagram.

[0024] In the figure: 1. commutator body; 101. positioning groove; 2. fixing plate; 3. strengthening installation mechanism; 31. installation plate; 311. positioning protrusion; 32. reinforcement support foot; 33. bearing; 34. locking bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 3 The utility model provides the following technical solutions: a micro motor commutator mounting structure, including a fixing plate 2 and a reinforcing mounting mechanism 3, the reinforcing mounting mechanism 3 is connected to the tail end of the commutator body 1 and is fixed in the rear end cover of the motor by the fixing plate 2, the reinforcing mounting mechanism 3 includes: a mounting plate 31 and a reinforcing support foot 32.

[0027] Specifically, by Figure 1 and Figure 2 As shown, in the present embodiment, the mounting plate 31 is fixed at the tail end of the commutator body 1, one end of the reinforcing support foot 32 is fixedly connected to the mounting plate 31, and the other end is rotatably connected to the fixed plate 2. Therefore, in use, after the commutator body 1 is connected to the motor armature, the mounting plate 31 is fixed to the tail end of the commutator body 1, and then the fixed plate 2 is fixed in the rear end cover of the motor, and then the end of the reinforcing support foot 32 away from the mounting plate 31 is rotatably connected to the fixed plate 2, and the brush of the motor is fixed on the fixed plate 2 and cooperates with the commutator body 1, which can improve the stability of the commutator body 1 fixed on the motor armature, effectively avoid the position displacement of the commutator body 1 due to thermal expansion and contraction and centrifugal force, and improve the working safety and service life of the commutator body 1.

[0028] Preferably, by Figure 1 and Figure 2 As shown, in the present embodiment, a plurality of reinforcing support legs 32 are evenly spaced along the circumferential direction, and there are various ways to fix the reinforcing support legs 32 to the mounting plate 31, such as welding, bolts, etc. In the present embodiment, welding is preferably used to make the reinforcing support legs 32 evenly spaced along the circumferential direction and fixed on the mounting plate 31, and the commutator body 1 is reinforced and supported by the reinforcing support legs 32, thereby improving the stability of the commutator body 1 fixed on the motor armature.

[0029] Preferably, by Figure 1 and Figure 2As shown, in this embodiment, the reinforced support legs 32 are diffused from the mounting plate 31 to the fixed plate 2. The support performance of the reinforced support legs 32 in this arrangement is more stable. For example, a very common tripod has a larger support area when the legs are in an inclined state, so the support is more stable, ensuring the stability of the commutator body 1.

[0030] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the reinforced mounting mechanism 3 also includes: locking bolts 34. The mounting plate 31 is fixed to the rear end of the commutator body 1 by means of a plurality of locking bolts 34 equally spaced along the circumferential direction. The mounting plate 31 is fixedly mounted by means of a plurality of locking bolts 34. The installation is convenient and stable, and it is also convenient for disassembly and maintenance of the mounting plate 31. It should be noted that the mounting plate 31 is not limited to being fixed by means of locking bolts 34. Other available mounting methods, such as retaining springs, may also be selected in actual use. However, as a preferred embodiment, the locking bolts 34 have the advantage of being easy to install and disassemble.

[0031] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the reinforced mounting mechanism 3 also includes: a bearing 33, and the reinforced support foot 32 is rotatably connected to the fixed plate 2 by the bearing 33. When the motor is working, the commutator body 1 will drive the mounting plate 31 and the reinforced support foot 32 to rotate.

[0032] It should be noted that the bearing 33 is used to connect the reinforced support foot 32 and the fixed plate 2. When the reinforced support foot 32 and the inner ring of the bearing 33 are fixed, the outer ring of the bearing 33 and the fixed plate 2 are fixed. The two can be fixed by bolts or welding, that is, the reinforced support foot 32 and the inner ring of the bearing 33 are fixed by bolts or welding, and the outer ring of the bearing 33 and the fixed plate 2 are fixed by bolts or welding.

[0033] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, a plurality of positioning grooves 101 equally spaced along the circumferential direction are provided at the rear end of the inner wall of the commutator body 1, and a positioning protrusion 311 is fixed on the end face of the mounting disk 31 and embedded in the positioning groove 101. The positioning protrusion 311 is embedded in the positioning groove 101 to position the connection between the mounting disk 31 and the commutator body 1, and at the same time, the mounting disk 31 and the commutator body 1 can be firmly matched, thereby further improving the stability of the commutator body 1.

[0034] Preferably, by Figure 1-Figure 3 As shown, in this embodiment, the outer wall of the positioning protrusion 311 fits the inner wall of the positioning groove 101, so that the mounting plate 31 and the commutator body 1 are closely matched, further improving the stability of the commutator body 1.

[0035] Components not described in detail herein are prior art.

[0036] Working principle and use process of the utility model: The commutator body 1 installation structure of the utility model, when in use, after the commutator body 1 is connected to the motor armature, the installation disk 31 is fixed to the tail end of the commutator body 1, and then the fixed disk 2 is fixed in the rear end cover of the motor, and then the end of the reinforcement support foot 32 away from the installation disk 31 is rotatably connected to the fixed disk 2, and the brush of the motor is fixed on the fixed disk 2 and matched with the commutator body 1;

[0037] Strengthening the mounting mechanism 3 can improve the stability of the commutator body 1 fixed on the motor armature, effectively avoid the position deviation of the commutator body 1 due to thermal expansion and contraction and centrifugal force, and improve the working safety and service life of the commutator body 1.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A micro motor commutator mounting structure, comprising a fixing plate (2) and a reinforcing mounting mechanism (3), wherein the reinforcing mounting mechanism (3) is connected to the rear end of the commutator body (1) and is fixed in the rear end cover of the motor by the fixing plate (2), characterized in that: The reinforcing installation mechanism (3) comprises: A mounting plate (31), wherein the mounting plate (31) is fixed to the rear end of the commutator body (1); A reinforcement support foot (32), one end of the reinforcement support foot (32) is fixedly connected to the mounting plate (31), and the other end is rotatably connected to the fixing plate (2).

2. A micro motor commutator mounting structure according to claim 1, characterized in that: A plurality of the reinforcement support legs (32) are distributed at equal intervals along the circumferential direction.

3. The micro motor commutator mounting structure according to claim 1, characterized in that: The reinforcement support legs (32) are diffused from the mounting plate (31) to the fixing plate (2).

4. The micro motor commutator mounting structure according to claim 1, characterized in that: The reinforcing installation mechanism (3) further comprises: Locking bolts (34), the mounting plate (31) is fixed to the rear end of the commutator body (1) by means of a plurality of locking bolts (34) distributed at equal intervals along the circumferential direction.

5. The micro motor commutator mounting structure according to claim 1, characterized in that: The reinforcing installation mechanism (3) further comprises: A bearing (33), wherein the reinforcement support foot (32) is rotatably connected to the fixed plate (2) by means of the bearing (33).

6. The micro motor commutator mounting structure according to claim 1, characterized in that: A plurality of positioning grooves (101) are provided at the rear end of the inner wall of the commutator body (1) and are distributed at equal intervals in the circumferential direction. A positioning protrusion (311) is fixed on the end surface of the mounting plate (31) and is embedded in the positioning groove (101).

7. A micro motor commutator mounting structure according to claim 6, characterized in that: The outer wall of the positioning protrusion (311) fits against the inner wall of the positioning groove (101).

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