Novel commutator

Abstract

The utility model relates to the field of small commutators, in particular to a novel commutator which comprises a plurality of commutator segments arranged in an arc array. The padding is located in the multiple commutator segments, a first assembly hole is further formed in the center of the padding, and a first arc-shaped limiting groove is further formed in the wall face forming the first assembly hole; the bushing is provided with a second assembly hole, the bushing is matched with the first assembly hole, the wall surface forming the second assembly hole is further provided with at least two first notches which are oppositely arranged, and the top wall forming each first notch is further provided with a first limiting part; and the first limiting part is arranged in the first arc-shaped limiting groove. According to the utility model, the advantages of convenient replacement of the bushing, simple structure and high practicability can be realized by effectively utilizing the structural configuration of the bushing.

Description

Technical Field

[0001] The present application relates to the field of small commutators, and more specifically to a novel commutator. Background Art

[0002] Most of the existing bushings are integrally molded with fillers. Specifically, multiple commutator segments and bushings are placed in a mold, and the bushing is located in the center of the multiple commutator segments, and then the filler is injection molded synchronously with an external device. However, this processing method of integrally molding the bushing, filler and multiple commutator segments makes it impossible to remove the bushing. The bushing cooperates with the shaft core of the external motor, that is, the external shaft core is pressed into the bushing by external hydraulic equipment. If the bushing is detected as a substandard product before the shaft core is pressed into, the integral molding processing method makes it impossible to remove the bushing, which leads to the scrapping of the entire product. For example, the Chinese patent with application number "CN202221537823.4" and patent name "A high-strength hook-type commutator", in which the bushing and filler are integrally injection molded, and the structural design of the bushing makes it impossible to remove the bushing.

[0003] Therefore, there is a need to provide a new commutator with easy replacement of bushings, simple structure and high practicality. Summary of the invention

[0004] The main purpose of the present application is to provide a new type of commutator, wherein the new type of commutator can effectively utilize its own structural configuration to achieve the advantages of easy replacement of the bushing and simple structure.

[0005] Another object of the present application is to provide a new type of commutator, wherein the new type of commutator includes multiple commutator segments, a filler and a bushing, wherein the multiple commutator segments are arranged in an arc-shaped array, the filler is inside the multiple commutator segments, and the center of the filler also has a first assembly hole, and the wall forming the first assembly hole also has a first arc-shaped limiting groove, the bushing has a second assembly hole, and the bushing cooperates with the first assembly hole, and the wall forming the second assembly hole also has at least two oppositely arranged first notches, and each top wall forming the first notch also has a first limiting portion, the first limiting portion is placed in the first arc-shaped limiting groove, wherein when the user applies torque to the bushing, the end of the first limiting portion will disengage from the first arc-shaped limiting groove, and at the same time, the wall forming the first assembly hole will squeeze the first limiting portion, so that the first limiting portion is pressed into the first notch, so that the user can remove the bushing easily.

[0006] Another object of the present application is to provide a new type of commutator, wherein the new type of commutator has a simple structure, is easy to operate, does not involve complex manufacturing processes and expensive materials, has high economy, and is easy to promote and use.

[0007] In order to achieve at least one of the above-mentioned invention objectives, the present application provides a novel commutator, wherein the novel commutator comprises:

[0008] A plurality of commutator segments, wherein the plurality of commutator segments are arranged in an arc-shaped array;

[0009] A filler, the filler is located in the plurality of commutator segments, the center of the filler also has a first assembly hole, and the wall surface forming the first assembly hole also has a first arc-shaped limiting groove;

[0010] A bushing, wherein the bushing has a second assembly hole, and the bushing cooperates with the first assembly hole, and the wall surface forming the second assembly hole also has at least two oppositely arranged first notches, and each top wall forming the first notch also has a first limiting portion, and the first limiting portion is placed in the first arc-shaped limiting groove.

[0011] In one or more embodiments of the present application, a plurality of commutator segments together form a first opening, a cavity and a second opening, the first opening and the second opening are both connected to the cavity, and the filler is used to fill the cavity, and the first arc-shaped limit groove is close to the first opening.

[0012] In one or more embodiments of the present application, the filler also has a guide groove and a placement groove, the guide groove is located at the top of the filler, the placement groove is located at the bottom of the filler, and the two ends of the first assembly hole are respectively connected to the guide groove and the placement groove.

[0013] In one or more embodiments of the present application, each of the first limiting portions includes a first extension portion and a first abutment portion, one end of the first extension portion is connected to the top forming the first notch, and the other end extends a predetermined distance away from the second assembly hole and is connected to the first abutment portion, and the first abutment portion is placed in the first arc-shaped limiting groove.

[0014] In one or more embodiments of the present application, the wall forming the second assembly hole further has at least two second notches arranged opposite to each other, and each top wall forming the second notch further has a second limiting portion, and the second limiting portion is close to the second opening.

[0015] In one or more embodiments of the present application, the wall forming the first assembly hole also has a second arc-shaped limiting groove, the second arc-shaped limiting groove is close to the second opening, and at least two second limiting portions are disposed in the second arc-shaped limiting groove.

[0016] In one or more embodiments of the present application, each of the second limiting portions includes a second extension portion and a second abutment portion, one end of the second extension portion is connected to the top forming the second notch, and the other end extends a predetermined distance away from the second assembly hole and is connected to the second abutment portion, and the second abutment portion is placed in the second arc-shaped limiting groove.

[0017] In one or more embodiments of the present application, the first limiting portion faces the second opening, and the second limiting portion faces the first opening.

[0018] In one or more embodiments of the present application, the bushing also has an annular abutment portion, which is located at one end of the bushing close to the second opening, and the bottom wall forming the placement groove also has a matching groove, and the annular abutment portion is placed in the matching groove.

[0019] In one or more embodiments of the present application, the depth of the matching groove is greater than the thickness of the annular abutment portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] These and / or other aspects and advantages of the present application will become clearer and easier to understand from the following detailed description of the embodiments of the present application in conjunction with the accompanying drawings, in which:

[0021] Figure 1 The figure shows a structural schematic diagram of a new commutator.

[0022] Figure 2 The figure shows the schematic diagram of the coordination between the new commutator and the fixture. DETAILED DESCRIPTION

[0023] The terms and words used in the following specification and claims are not limited to the literal meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for the purpose of limiting the present application as defined by the appended claims and their equivalents.

[0024] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0025] Although ordinals such as "first," "second," and the like will be used to describe various components, those components are not limited herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more associated listed items.

[0026] The terms used herein are only used for the purpose of describing various embodiments and are not intended to be limiting. As used herein, singular forms are intended to also include plural forms, unless the context clearly indicates an exception. In addition, it will be understood that the terms "including" and / or "having" when used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0027] Schematic of the new commutator

[0028] refer to Figure 1 to Figure 2 , a new commutator according to a preferred embodiment of the utility model, wherein it should be noted that the above-mentioned new commutator is used for a motor, wherein it cooperates with the shaft core of an external motor and is spaced a predetermined distance from the rotor of the external motor. It is worth mentioning that the commutator includes a plurality of commutator segments 10, and the plurality of commutator segments 10 are arranged in an arc array, and a mica sheet is provided between two of the commutator segments 10, that is, the mica sheet has a good insulation effect. In addition, a filler 20 is also provided between the plurality of commutators, and the filler 20 is integrally formed by injection molding. It should be noted that each of the commutator segments 10 has two oppositely arranged bending portions 11 on one side close to the filler 20, and the two bending portions 11 are integrally formed with the commutator segment 10, and it should be understood by those skilled in the art that the plurality of bending portions 11 are provided to limit the position of the filler 20, so as to improve the bonding force between the commutator segment 10 and the filler 20. It is worth mentioning that the plurality of commutator segments 10 together form a first opening 101 , a cavity and a second opening 102 . The first opening 101 and the second opening 102 are both connected to the cavity, and the filler 20 is used to fill the cavity.

[0029] The filler 20 has a guide groove 201, a first assembly hole 202 and a placement groove 203. The guide groove 201 is located at the top of the filler 20, the placement groove 203 is located at the bottom of the filler 20, the first assembly hole 202 is located at the center of the filler 20, and the two ends of the first assembly hole 202 are respectively connected to the guide groove 201 and the placement groove 203. It is worth mentioning that the size of the guide groove 201 is smaller than that of the placement groove 203. It should be noted that the above-mentioned first assembly hole 202 is used to place the bushing, but most of the existing bushings are integrally molded with the filler. Specifically, multiple commutator segments and bushings are placed in a mold, and the bushing is located at the center of the multiple commutator segments, and then the filler is injection molded synchronously with an external device. However, this processing method of integrally molding the bushing, filler and multiple commutator segments will make it impossible to remove the bushing, and the bushing cooperates with the shaft core of the external motor, that is, the external shaft core is pressed into the bushing through external hydraulic equipment. If the bushing is detected as a unqualified product before the shaft core is pressed into, the one-piece molding processing method makes it impossible to remove the bushing, which leads to the scrapping of the entire product. The utility model is configured to be able to remove the bushing to avoid the above-mentioned problem.

[0030] Specifically, the novel commutator further includes a bushing 30, which is arranged in the first assembly hole 202, and the bushing 30 is a copper part. It is worth mentioning that the bushing 30 also has a second assembly hole 301, and the second assembly hole 301 also passes through the bushing 30, and the two ends of the second assembly hole 301 correspond to the guide groove 201 and the placement groove 203 respectively, and the wall surface forming the second assembly hole 301 also has at least two oppositely arranged first notches 302. It should be noted that the preferred embodiment of the above-mentioned first notches 302 is a plurality of evenly distributed and arc-shaped arrays, and each top wall forming the first notch 302 also has a first limiting portion 31.

[0031] Furthermore, the wall surface forming the first assembly hole 202 also has a first arc-shaped limiting groove 204, the first arc-shaped limiting groove 204 is close to the first opening 101, and at least two first limiting portions 31 are disposed in the first arc-shaped limiting groove 204, thereby limiting the position of the bushing 30 by at least two first limiting portions 31. Each of the first limiting portions 31 includes a first extension portion and a first abutment portion, one end of the first extension portion is connected to the top portion forming the first notch 302, and the other end extends a predetermined distance in a direction away from the second assembly hole 301 and is connected to the first abutment portion, and the first abutment portion is disposed in the first arc-shaped limiting groove 204. It is worth mentioning that the first extension portion is arranged at an angle, and the bushing 30 is a copper part, so the first extension portion has a certain reset ability. During the installation process, the wall forming the first assembly hole 202 will squeeze the first abutment portion and squeeze the first abutment portion into the first notch 302. At the same time, the first extension portion is deformed until the first limiting portion 31 is opposite to the first arc-shaped limiting groove 204. At this time, the first extension portion is reset, and the first abutment portion is placed in the first arc-shaped limiting groove 204.

[0032] It should be noted that the wall surface forming the second assembly hole 301 also has at least two oppositely arranged second notches 302. It should be noted that the preferred embodiment of the second notches 302 is that a plurality of evenly distributed and arc-shaped arrays are arranged, and each top wall forming the second notches 302 also has a second limiting portion 32.

[0033] Furthermore, the wall surface forming the first assembly hole 202 also has a second arc-shaped limiting groove 205, the second arc-shaped limiting groove 205 is close to the second opening 102, and at least two second limiting portions 32 are disposed in the second arc-shaped limiting groove 205. Each of the second limiting portions 32 includes a second extension portion and a second abutment portion, one end of the second extension portion is connected to the top portion forming the second notch 302, and the other end extends a predetermined distance in a direction away from the second assembly hole 301 and is connected to the second abutment portion, and the second abutment portion is disposed in the second arc-shaped limiting groove 205.

[0034] It is worth mentioning that the first limiting portion 31 faces the second opening 102 , and the second limiting portion 32 faces the first opening 101 . It should also be noted that the bushing 30 also has an annular abutment portion 33, which is located at one end of the bushing 30 close to the second opening 102 and is flush with the end, and the bottom wall forming the placement groove 203 also has a matching groove 206, and the annular abutment portion 33 is placed in the matching groove 206. Specifically, the bushing 30 is inserted from the second opening 102, wherein when the annular abutment portion 33 is placed in the matching groove 206, and the depth of the matching groove 206 is greater than the thickness of the annular abutment portion 33, and the difference is 2-3mm, so that during the installation of the bushing 30, the user can continue to push the annular abutment portion 33 by 2-3mm, so that the wall surface forming the second arc-shaped limit groove 205 will squeeze the second abutment portion, so that the second extension portion will produce a certain deformation, that is, a force is applied to the filler 20, thereby improving the bonding force between the bushing 30 and the filler 20. It should also be noted that the size of the first arc-shaped limiting groove 204 is also slightly larger than the second arc-shaped limiting groove 205. Figure 2 As shown, the utility model is placed on an external fixture, and the external iron core enters from the guide groove 201, and passes through the guide groove 201, the second assembly hole 301 and the placement groove 203 in sequence. During the installation of the iron core, the iron core will exert a force on the bushing 30, so that the bushing 30 will be offset downward by a predetermined distance. At this time, the wall surface forming the first arc-shaped limit groove 204 will exert a force on the first limit portion 31, so that the first extension portion will produce a certain deformation, that is, exert a force on the filler 20, thereby improving the bonding force between the bushing 30 and the filler 20.

[0035] In summary, the novel commutator based on the embodiment of the present application is explained, which provides the novel commutator with advantages such as easy replacement of the bushing, simple structure, and high practicality.

[0036] It is worth mentioning that in the embodiment of the present application, the novel commutator has a simple structure, does not involve complex manufacturing processes and expensive materials, and has high economic efficiency. At the same time, for manufacturers, the novel commutator provided by the present application is easy to produce and has low cost, which is more conducive to controlling production costs and further facilitating product promotion and use.

[0037] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A new type of commutator, characterized in that: The novel commutator comprises: A plurality of commutator segments, wherein the plurality of commutator segments are arranged in an arc-shaped array; A filler, the filler is located in the plurality of commutator segments, the center of the filler also has a first assembly hole, and the wall surface forming the first assembly hole also has a first arc-shaped limiting groove; A bushing, wherein the bushing has a second assembly hole, and the bushing cooperates with the first assembly hole, and the wall surface forming the second assembly hole also has at least two oppositely arranged first notches, and each top wall forming the first notch also has a first limiting portion, and the first limiting portion is placed in the first arc-shaped limiting groove.

2. The new commutator according to claim 1 is characterized in that: A plurality of commutator segments together form a first opening, a cavity and a second opening. The first opening and the second opening are both connected to the cavity, and the filler is used to fill the cavity. The first arc-shaped limiting groove is close to the first opening.

3. The new commutator according to claim 2 is characterized in that: The filler also has a guide groove and a placement groove, wherein the guide groove is located at the top of the filler, the placement groove is located at the bottom of the filler, and both ends of the first assembly hole are respectively connected to the guide groove and the placement groove.

4. The new commutator according to claim 3 is characterized in that: Each of the first limiting portions includes a first extension portion and a first abutment portion, one end of the first extension portion is connected to the top forming the first notch, and the other end extends a predetermined distance away from the second assembly hole and is connected to the first abutment portion, and the first abutment portion is placed in the first arc-shaped limiting groove.

5. The new commutator according to claim 4 is characterized in that: The wall surface forming the second assembly hole also has at least two second notches arranged opposite to each other, and each top wall forming the second notch also has a second limiting portion, and the second limiting portion is close to the second opening.

6. The new commutator according to claim 5 is characterized in that: The wall surface forming the first assembly hole also has a second arc-shaped limiting groove, the second arc-shaped limiting groove is close to the second opening, and at least two second limiting portions are disposed in the second arc-shaped limiting groove.

7. The new commutator according to claim 6 is characterized in that: Each of the second limiting portions includes a second extension portion and a second abutment portion, one end of the second extension portion is connected to the top forming the second notch, and the other end extends a predetermined distance away from the second assembly hole and is connected to the second abutment portion, and the second abutment portion is placed in the second arc-shaped limiting groove.

8. The new commutator according to claim 7 is characterized in that: The first limiting portion faces the second opening, and the second limiting portion faces the first opening.

9. The new commutator according to claim 8 is characterized in that: The bushing also has an annular abutment portion, which is located at one end of the bushing close to the second opening, and the bottom wall forming the placement groove also has a matching groove, and the annular abutment portion is placed in the matching groove.

10. The new commutator according to claim 9, characterized in that: In addition, the depth of the matching groove is greater than the thickness of the annular abutment portion.

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