KR100342740B1 - assembled brush of commutator motor - Google Patents

Abstract

The present invention is to install the brush for applying power to the commutator, to facilitate the assembly and at the same time to reduce the work maneuver, so that the installation state of the brush can be stably maintained, to implement this For the configuration, the insertion hole is formed in the upper edge portion of the tubular shape is inserted into the configuration including the stator and the commutator, both sides are formed on the upper surface in the center direction to bend to the lower side and the end is mutual A housing having a through-hole curved to face the support jaw, and a guide groove formed on both side walls corresponding to the end portions of the both support jaws so as to be inserted at a predetermined depth through the insertion hole, and having a lengthwise direction. The seat hole is formed through the center portion, and is opened from the front side to the side of the seat hole. The holder is formed with a predetermined wing groove to a predetermined depth, and the wings corresponding to the wing groove is formed on both sides in a tubular shape opened in the direction of the center of the housing is inserted by penetrating from the front of the seat hole, inserted through the open portion And a supporter for continuously contacting the brush to correspond to the commutator positioned by the elastic force of the elastic member provided therein.

Therefore, according to the present invention, there is an effect that the assembly is performed without requiring a separate process such as welding in the process of assembling each component.

Description

Assembled brush of commutator motor

The present invention relates to a brush assembly of a commutator motor, and more particularly, in installing a brush for applying power to the commutator, to reduce the man-hour according to the assembling work and to facilitate the installation thereof, the installation of the brush It relates to a brush assembly of a commutator motor to maintain a stable state.

Generally, as shown in FIG. 1, the stator motor 10 is press-fitted to the inner wall of a predetermined cylindrical housing 12, and the rotor 16 is formed on the inner diameter of the stator 14. ) Is rotatably inserted.

On the load side of the above-described rotor 16, a housing cover or a functional component that can replace the housing cover is assembled to support the bearing of the rotating shaft for supporting the rotor 16, and then the guide vane 18 and the impeller 20 And the flow path components such as the impeller cover 22 to form an outer configuration.

In addition, a commutator 24 is installed at the half load side of the rotor 16 so that power can be applied to the rotor 16, and a commutator is provided at the upper side of the housing 12 in which the commutator 24 is located. The brush assembly is brought into electrical contact with 24.

Here, the configuration of the brush assembly described above and its coupling relationship will be described in more detail.

First, as shown in FIG. 1 or FIG. 2, the housing 12 in which the brush assembly is installed has a configuration including a stator 14, a rotor 16, a commutator 24, and the like in a partitioned interior. There is a housing 12 is provided, the upper side of the housing 12 is formed with an insertion hole 26 of a predetermined shape to enable the insertion and installation of the brush assembly.

In addition, as shown in FIG. 2 or FIG. 3, two through-holes 28 having a predetermined shape are successively formed on the upper surface from the portion where the insertion hole 26 is formed to the center of the housing 12. Both sides of the through hole 28, that is, both sides of the insertion hole 26 with respect to the center direction of the housing 12, extend downward, and the bent end portions are bent in the opposite direction again to support the base jaw. (30).

On the other hand, the above-described insertion hole 26, the brush assembly to be electrically connected to the commutator 24 described above is configured to be installed.

Here, the above-described configuration of the brush assembly includes a brush 32 electrically connected to the commutator 24 described above, and a supporter 36 supporting the brush 32 so as to be continuously electrically connected to the commutator 24. And a holder 38 for fixing the supporter 36 to the housing 12.

First, referring to the configuration of the holder 38, as shown in Figure 3, the upper end of both sides in the shape that can be inserted through the above-described insertion hole 26, the inner upper wall of the housing 12 and the above-described support jaw ( The support jaw 40 is formed to be slidable between the end portions of the 30.

In addition, as shown in FIG. 3, the lower center portion of the holder 38 has a mounting groove 42 having a predetermined width, depth, and shape in an upward direction, and is provided on both sidewalls of the mounting groove 42. Support protrusions 44 protruding from each other are formed.

In addition, a fastening hole 46 penetrating from the upper surface to the seating groove 42 is formed in the upper portion of the holder 38 along the longitudinal center portion, and an insertion hole 26 is formed at the rear end of the upper surface of the holder 38. The locking step 41 is formed to be caught on the upper side of the insertion hole 26 to determine the insertion position of the holder 38 is formed.

Meanwhile, as shown in FIG. 3 or 4, the supporter 36 is opened in the direction of the center of the housing 12, and the opposite end portion is formed in a tubular shape having a predetermined length that is closed. An elastic member 34, such as a compression coil spring, is provided to be supported and provides elastic force in an open portion direction, and the brush is inserted and installed to receive the elastic force of the elastic member 34 through the open portion of the supporter 36. Make up.

In addition, on the upper surface of the supporter 36, as shown in FIG. 3 or 4, a protrusion 48 protruding to correspond to the fastening hole 46 is formed, and the protrusion 48 is a supporter 36. ) Is inserted from the bottom of the mounting groove 42, and both sides thereof are supported by the above-described support protrusion 44 to form a seating position. In this case, the above-described protrusion passes through the fastening hole 46.

Then, the end of the protrusion 48 protruding again through the fastening hole 46 is bent to be in close contact with the peripheral portion of the fastening hole 46 by an operator or the like, thereby making position coupling with respect to the holder 38.

As described above, the holder 38 and the supporter 36 coupled to each other are in an unstable state due to the degree of curvature of the protrusion 48, and thus separate processes such as welding through the above-described fastening hole 46 part. Is required.

On the other hand, the coupling of the holder 38 to the housing 12 is, as described above, is inserted through the insertion hole 26 of the housing 12 in a state in which the supporter 36 including the brush 32 is coupled. In the process, as the support jaw 40 is guided and supported between the above-described support jaw 30, the sliding jaw moves in the center direction of the housing 12.

At this time, as the locking jaw 41 formed at the rear end of the upper surface of the holder 38 is caught by the upper periphery of the insertion hole 26, the insertion position is determined, and the housing ( 12) and the holder 38 to be fixed by welding.

However, as described above, in the coupling relationship of the supporter to the holder, the protrusions formed on the upper surface of the supporter are inserted into the fastening holes of the holder, and then bent to fix the protruding portion above the fastening hole so as to be bent. Not only the coupling state is determined by the degree, but also a separate process such as welding to maintain the coupling state is required, there is a problem that hassle of assembly work.

In addition, in the coupling relationship of the holder to the housing, the insertion position of the holder may be determined, but in order to maintain the state, the housing and the holder must be fixed by a separate process such as welding while pressing in the direction of inserting the holder. There was a problem of troublesome work and positioning.

An object of the present invention, which is conceived to solve the conventional problems, to facilitate the combination of the brush, the supporter, the holder and the housing constituting the brush assembly is easily performed without a separate process and at the same time reduce the labor In providing a brush assembly of the commutator motor.

1 is a cross-sectional view schematically showing a configuration and a coupling relationship of a general commutator motor.

2 is a perspective view showing a conventional configuration of the housing of FIG.

Figure 3 is an exploded perspective view showing the configuration of the brush assembly according to the prior art and its coupling relationship.

4 is a cross-sectional view illustrating a coupling state of a holder, a supporter, and a brush to the housing illustrated in FIG. 3.

Figure 5 is an exploded perspective view showing the configuration of the brush assembly including a holder and a supporter and a brush for the housing according to an embodiment of the present invention and its coupling relationship.

<Explanation of symbols for the main parts of the drawings>

10: commutator motor 12, 50: housing

14: stator 16: rotor

18: guide vane 20: impeller

22: impeller cover 24: commutator

26: insertion hole 28, 52: through hole

30, 54: Base 32: Brush

34: elastic member 36, 68: supporter

38, 58: holder 40: support jaw

41: engaging jaw 42: seating groove

44: support protrusion 46: fastening hole

48: turning 56: stopping projection

60: guide groove 62: seat groove

64: seat hole 66: wing groove

70: wings

Brush assembly configuration of the commutator motor according to the present invention for achieving the above object, the insertion hole is formed in the upper edge portion of the tubular shape in which the configuration including the stator and the commutator is inserted, from the upper surface in the center direction Both housings are formed and bent downward, and the ends thereof are bent to face each other, and the housing has a through hole formed therein, and guides are supported on both side walls corresponding to the end portions of the both base jaws through the insertion holes. A guide groove is formed to be inserted into a predetermined depth, and a seat hole is formed through a longitudinal center portion, and a wing groove extending from a front side at a side portion of the seat hole has a predetermined depth, and toward the housing center direction. In the open tubular shape, wings corresponding to the wing grooves are formed at both sides, and thus the front of the seat hole. It is positioned by being inserted from the through, characterized by configured by comprising a supporter to ensure continuous contact connected to the corresponding brush is inserted through the open portions to the commutator is positioned to the elastic force of the elastic member provided inside.

In addition, the periphery of the peripheral portion of the through hole on the edge side of the housing forms a locking protrusion in a shape protruding in the direction of the center of the housing, the upper end of the upper surface of the holder which is inserted through the insertion hole of the housing of the holder Corresponding to the insertion position is preferably formed by forming a seat groove for the locking projection is seated position.

Hereinafter, the brush assembly configuration of the commutator motor and the coupling relationship between the components according to the above configuration will be described with reference to the accompanying drawings.

5 is an exploded perspective view showing an enlarged brush assembly configuration of the commutator motor according to an embodiment of the present invention and a coupling relationship between the components, the same reference numerals are assigned to the same parts as in the prior art, and detailed description thereof will be omitted. do.

The brush assembly of the commutator motor according to the present invention, as shown in Figure 5, the housing 50 is provided with each configuration including a stator 14, a rotor 16, a commutator 24, etc. partitioned inside In the upper side of the housing 50, an insertion hole 26 having a predetermined shape is formed to enable the insertion and installation of the brush assembly.

Further, as shown in FIG. 5, a through hole 52 having a predetermined shape is formed on the upper surface from the portion where the insertion hole 26 is formed in the direction of the housing 50 to the center of the housing 50. On both sides, i.e., both sides of the insertion hole 26 with respect to the center direction of the housing 50, a predetermined portion toward the center side of the housing 50 extends downward, and the bent end portions face each other again in a direction facing each other. It is bent to form a pair of support jaw 54.

In addition, as illustrated in FIG. 5, the above-described through hole 52 on the insertion hole 26 side has a locking protrusion 56 that extends toward the center of the housing 50 in a predetermined width and shape. ) Is formed.

On the other hand, the holder 58 is, as shown in Figure 5, the shape that can be inserted through the insertion hole 26 of the housing 50 described above, of the support jaw 54 facing each other on both sides of the front front Guide grooves 60 are formed to insert one end portion to a predetermined depth.

The front end portion of the guide groove 60 forms a bulged shape so that the end portion of the base 54 is easily inserted.

Accordingly, in the process in which the holder 58 is inserted through the insertion hole 26, the end portion of the support jaw 54 is guided and inserted by being inserted through the guide groove 60. The end portion is positioned at the inner end portion of the guide groove 60 so that it can no longer be inserted, and the holder 58 is in the set position.

In addition, as shown in FIG. 5, a seat groove 62 having a shape corresponding to the locking protrusion 56 formed in the through hole 52 is formed at the rear end of the upper surface of the holder 58. As the holder 58 is inserted into the holder 62, the locking protrusion 56 is seated by the elastic restoring force in the upper direction of the base 54 to determine the insertion position of the holder 58.

In addition, as shown in FIG. 5, the insertion direction center portion of the holder 58 has a seat hole 64 having a predetermined shape and size, and a predetermined position is formed at both side wall center portions of the seat hole 64. A wing groove 66 extending in width, depth and length is formed.

Meanwhile, as shown in FIG. 5, the supporter 68 is formed in a tubular shape in which one side in the longitudinal direction is opened and the other side is blocked and can be inserted into the seat hole 64 described above. Wings 70 are formed to extend a predetermined length on both side walls in the longitudinal direction so that the above-described wing grooves 66 are located correspondingly.

In addition, an elastic member 34 such as a compression coil spring, which is supported by a blocked portion and provides an elastic force in an open portion direction, is positioned inside the supporter 68, and the elastic member 34 is formed of the supporter 68. The elastic force is provided in the direction in which the brush 32 inserted from the open portion is pushed out.

Thus, the combination of the brush 32 and the supporter 68 and the holder 58 described above forms one brush assembly for the housing 50 described above.

According to the present invention having such a configuration, as shown in FIG. 5, the supporter 68 is inserted by inserting the supporter 68 in which the brush 32 is inserted through the seat hole 64 in front of the holder 58 and seating the supporter 68. The wings 70 of) are supported by the wing grooves 66, thereby combining these components.

In addition, when inserted through the insertion hole 26 of the housing 50 in such a coupled state, the holder 58 is guided and positioned through the guide groove 60 and positioned, and at this time, the locking projection ( 56 is installed in the seat groove 62, the installation is made.

Therefore, according to the present invention, the joining position is determined by inserting the supporter including the brush through the seat hole of the holder, and the joining position is determined by inserting the holder combined with the brush through the inserting hole of the housing. By doing so, a separate process is not required, thereby reducing the number of labors and at the same time, the coupling is easily performed.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

Claims (2)

Insertion holes are formed in the upper edge portion in the shape of a cylinder in which the configuration including the stator and the commutator is inserted, and both sides are formed on the upper surface in the center direction from the bottom and bent downward, and the ends thereof are bent to face each other. A housing having a through hole forming a support jaw, Guide grooves are formed on both sidewalls corresponding to the end portions of the side support jaws to be inserted at a predetermined depth through the insertion holes, and seat holes are formed along a longitudinal center portion thereof, and side portions of the seat holes are provided. A holder in which a wing groove extending from the front side is formed to a predetermined depth, Wings corresponding to the wing grooves are formed on both sides in a tubular shape open toward the center of the housing, and are inserted by penetrating from the front of the seat hole, and the elastic force of the elastic member provided therein is inserted into the brush. Brush assembly of the commutator motor, characterized in that it comprises a supporter to be in continuous contact connection corresponding to the commutator positioned in the. The method of claim 1, The through hole circumferential center portion at the edge side of the housing has a locking protrusion formed in a shape that protrudes toward the center of the housing, and an insertion position of the holder is formed at the rear end of the upper surface of the holder, which is inserted through the insertion hole of the housing. In response, the brush assembly of the commutator motor, characterized in that the seat groove is formed for the seating position is seated.