CN219801451U - U-shaped groove assembly structure of carbon brush holder - Google Patents

Abstract

The utility model belongs to the field of motor structures, and particularly relates to a U-shaped groove assembly structure of a carbon brush holder support. According to the utility model, the brush box is fixed on the carbon brush frame through the U-shaped groove structure, and the brush box is further covered by the side wall of the U-shaped groove, so that the structural strength after assembly can be greatly improved, and the brush box cannot be easily separated from the brush frame.

Description

U-shaped groove assembly structure of carbon brush holder

Technical Field

The utility model belongs to the field of motor structures, and particularly relates to a U-shaped groove assembly structure of a carbon brush holder support.

Background

Carbon brushes (brushes) are also known as sliding contacts and are widely used in many electrical devices. The carbon brush is a device for transmitting energy or signals between a fixed part and a rotating part of a motor or a generator or other rotary machinery, is generally made of pure carbon and a coagulant, is generally square in shape, is clamped on a metal bracket, is tightly pressed on a rotating shaft by a spring, and transmits electric energy to a coil through a phase changer when the motor rotates. The replacement should be maintained regularly and the carbon deposit should be cleaned.

In the prior art, the carbon brush is generally installed on the carbon brush holder through a brush box, the original plastic carbon brush holder is only provided with an installation hole site, no other structure for assisting or improving the assembly reliability is arranged, and the brush box is only fixed with the carbon brush holder by virtue of a bottom guide pin and cannot effectively ensure the assembly reliability.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a U-shaped groove assembly structure of a carbon brush holder, which enables carbon brush installation to be firmer and prolongs the service life of a motor.

In order to achieve the above object, the present utility model adopts the following technical scheme:

the utility model provides a U-shaped groove assembly structure of carbon brush holder, includes brush box and carbon brush holder, the interval is equipped with two spacing blend stop on the carbon brush holder, and two spacing blend stop and carbon brush holder terminal surface form the U-shaped groove, the brush box inlays and establishes at the U-shaped inslot.

As a preferable scheme: a plurality of convex ribs are respectively arranged on the opposite side walls of the two limit stop bars at intervals.

As a preferable scheme: the convex ribs comprise side convex ribs on two sides and middle convex ribs arranged in the middle of the two side convex ribs.

As a preferable scheme: the outer wall surface of the middle convex rib, which is in contact with the brush box, is an arc surface, and the outer wall surface of the side convex rib, which is in contact with the brush box, is a plane.

As a preferable scheme: the upper parts of the side convex ribs and the middle convex ribs are respectively provided with a guide slope.

As a preferable scheme: the centers of the two limiting stop bars are also provided with notches for inserting the brush box, and guide inclined planes are arranged around the notches.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the brush box is fixed on the carbon brush frame through the U-shaped groove structure, and the brush box is further covered by the side wall of the U-shaped groove, so that the structural strength after assembly can be greatly improved, and the brush box cannot be easily separated from the brush frame.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view showing an assembly structure of a carbon brush holder and a brush box according to the present utility model;

fig. 2 is a schematic structural view of a carbon brush holder according to the present utility model;

FIG. 3 is a partially enlarged schematic view of the portion A of FIG. 2;

FIG. 4 is a schematic top view of a carbon brush holder and brush box according to the present utility model;

fig. 5 is a partially enlarged schematic view of the B part of fig. 4.

The marks in the drawings are: 1. a brush box; 2. a carbon brush holder; 21. a limit stop bar; 22. a side convex rib; 23. a middle convex rib; 24. notch.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

the U-shaped groove assembly structure of the carbon brush holder shown in fig. 1 comprises a brush box 1 and a carbon brush holder 2, wherein two limiting baffle strips 21 are arranged on the carbon brush holder 2 at intervals, the two limiting baffle strips 21 and the end face of the carbon brush holder 2 form a U-shaped groove, and the brush box 1 is embedded in the U-shaped groove. The centers of the two limiting stop bars 21 are also provided with notches 24 for inserting the brush box 1, and guide inclined planes are arranged around the notches 24.

As shown in fig. 2 and 3, a plurality of ribs are respectively arranged on opposite side walls of the two limiting stop bars 21 at intervals, each rib comprises two side ribs 22 and a middle rib 23 arranged in the middle of the two side ribs 22, the outer wall surface of the middle rib 23, which is in contact with the brush box 1, is a cambered surface, the outer wall surface of the side rib 22, which is in contact with the brush box 1, is a plane, and guide slopes are respectively arranged on the upper parts of the side ribs 22 and the middle rib 23.

As shown in fig. 4 and 5, the brush box is clamped between two limiting stop bars 21, and the side convex ribs 22 and the middle convex rib 23 are propped against two sides of the brush box, so that the brush box is firmly fixed on the carbon brush frame, the carbon brush frame is used for fixing the brush box on the carbon brush frame through a U-shaped groove structure, and the side wall of the U-shaped groove is further coated with the brush box through the convex ribs which are in addiction fit with the brush box, so that the structural strength after assembly can be greatly improved, and the brush box cannot be easily separated from the brush frame.

The utility model uses the U-shaped groove structure to firmly fix the brush box and the carbon brush frame at the assembling position after assembling, thus greatly improving the assembling reliability, and the carbon brush frame is made of plastic, so that the problem that the metal brush box is damaged or deformed due to interference fit, and the function is invalid is avoided.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, and any simple modification, equivalent variation and modification of the above embodiments in light of the technical principles of the utility model may be made within the scope of the present utility model.

Claims (6)

1. The utility model provides a U-shaped groove assembly structure of carbon brush holder, includes brush box (1) and carbon brush holder (2), its characterized in that: two limiting blocking strips (21) are arranged on the carbon brush frame (2) at intervals, a U-shaped groove is formed between the two limiting blocking strips (21) and the end face of the carbon brush frame (2), and the brush box (1) is embedded in the U-shaped groove.

2. A U-shaped groove assembly structure for a carbon brush holder as defined in claim 1 wherein: a plurality of convex ribs are respectively arranged on the opposite side walls of the two limit stop bars (21) at intervals.

3. A U-shaped groove assembly structure for a carbon brush holder as defined in claim 2, wherein: the convex ribs comprise side convex ribs (22) on two sides and middle convex ribs (23) arranged between the two side convex ribs (22).

4. A U-shaped groove assembly structure for a carbon brush holder as defined in claim 3, wherein: the outer wall surface of the middle convex rib (23) contacted with the brush box (1) is an arc surface, and the outer wall surface of the side convex rib (22) contacted with the brush box (1) is a plane.

5. A U-shaped groove assembly structure for a carbon brush holder as defined in claim 3, wherein: the upper parts of the side convex ribs (22) and the middle convex ribs (23) are respectively provided with a guide slope.

6. A U-shaped groove assembly structure for a carbon brush holder as defined in claim 1 wherein: the centers of the two limiting stop bars (21) are also provided with a notch (24) for inserting the brush box (1), and guide inclined planes are arranged around the notch (24).