Commutator

Abstract

The utility model relates to the field of motors, in particular to a commutator which comprises a plurality of commutator segments arranged in an annular array. The commutator comprises a plurality of commutator segments, a filling material, the filling material is arranged among the plurality of commutator segments, the sides, close to each other, of the commutator segments are respectively provided with a first protruding block, each first protruding block is provided with a first installation groove, two ends of each first installation groove are communicated with the outside, and the plurality of first installation grooves are arranged on the same plane. And the outer wall of the first reinforcing ring is respectively matched with the plurality of first mounting grooves. According to the utility model, the filler is not easy to fall off by effectively utilizing the self structural configuration, the position of an external enameled wire can be limited, and the structure is simple.

Description

Technical Field

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

[0002] like Figure 3 The commutator structure of our company shown above has a plurality of protrusions 100 arranged opposite to each other between the plurality of commutator segments 10, and the plurality of protrusions 100 are arranged to limit the position of the filler 30. However, in actual application, due to the small size of the plurality of protrusions 100, the bonding force between the filler 30 and the plurality of protrusions 100 is small, so that the filler 30 is easy to fall off. If the size of the protrusions 100 is increased, the cost will increase. In addition, during the injection molding process of the filler 30, the plurality of commutator segments 10 need to be manually placed on the mold, resulting in low processing efficiency and high cost. Therefore, it is necessary to make certain improvements to the structure of the existing commutator.

[0003] Therefore, there is a need to provide a commutator in which the filler is not easy to fall off, the position of the external enameled wire can be limited, and the structure is simple. Utility Model Content

[0004] The main purpose of the present application is to provide a commutator, wherein the commutator can effectively utilize its own structural configuration to achieve the advantages of the filler not being easy to fall off and being able to limit the position of the external enameled wire.

[0005] Another object of the present application is to provide a commutator, wherein the commutator includes a plurality of commutator segments, a filler and a first reinforcement ring, the plurality of commutator segments are arranged in a ring array, the filler is located between the plurality of commutator segments, and each of the commutator segments has a first protrusion on a side close to each other, and each of the first protrusions has a first mounting groove, and both ends of the first mounting groove are connected to the outside, and the plurality of first mounting grooves are located on the same plane, the outer wall of the first reinforcement ring is respectively matched with the plurality of first mounting grooves, wherein the first reinforcement ring is configured to improve the bonding force between the plurality of commutator segments and the filler, thereby preventing the filler from falling off, and each of the commutator segments has a wire clamping groove on a side facing away from each other, and the wire clamping groove is configured to limit the position of the external enameled wire.

[0006] Another object of the present application is to provide a commutator, wherein the 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 commutator, wherein the commutator comprises:

[0008] A plurality of commutator segments, wherein the plurality of commutator segments are arranged in a ring array;

[0009] A filler, the filler is located between the plurality of commutator segments, and each of the commutator segments has a first protrusion on one side close to each other, and each of the first protrusions has a first mounting groove, and both ends of the first mounting groove are connected to the outside, and the plurality of first mounting grooves are located on the same plane; and

[0010] A first reinforcement ring, wherein the outer wall of the first reinforcement ring is respectively matched with the plurality of the first installation grooves.

[0011] In one or more embodiments of the present application, each of the commutator segments has a second protrusion on one side close to the filler, the first protrusion and the second protrusion are arranged opposite to each other and spaced a predetermined distance apart, and each of the second protrusions has a second mounting groove on one side facing away from the commutator segment, and both ends of the second mounting groove are also connected to the outside, and multiple second mounting grooves are also located on the same plane.

[0012] 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, the size of the first mounting groove is consistent with the size of the second mounting groove, and a plurality of the first mounting grooves are all close to the first opening, and a plurality of the second mounting grooves are also all close to the second opening.

[0013] In one or more embodiments of the present application, a first limiting groove is also provided on each side wall forming the first installation groove, and both sides of the first reinforcement ring also have a first annular limiting portion, wherein when the first reinforcement ring cooperates with multiple first installation grooves, the two first annular limiting portions respectively match the multiple first limiting grooves.

[0014] In one or more embodiments of the present application, a second limiting groove is also provided on each side wall forming the second installation groove, and both sides of the second reinforcement ring also have a second annular limiting portion, wherein when the second reinforcement ring cooperates with multiple second installation grooves, two of the second annular limiting portions respectively cooperate with multiple second limiting grooves.

[0015] In one or more embodiments of the present application, each of the commutator segments has a first bent portion on the side facing away from the filler, one end of the first bent portion is connected to one end of the commutator segment close to the first opening, and the other end is bent at a predetermined angle and extends a predetermined length in a direction close to the second opening.

[0016] In one or more embodiments of the present application, the commutator segment further has a wire-holding groove on a side facing away from the filler, and the wire-holding groove is directly opposite to the first curved portion.

[0017] In one or more embodiments of the present application, the end of the commutator segment close to the second opening further has a second bent portion, and the second bent portion is integrally formed with the commutator segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 The figure shows a structural schematic diagram of a commutator.

[0020] Figure 2 Picture shows Figure 1 A is an enlarged view of the middle image.

[0021] Figure 3 The figure shows a structural schematic diagram of an existing commutator. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Schematic commutator

[0027] refer to Figure 1 to Figure 2 According to a preferred embodiment of the commutator of the utility model, it should be noted that the commutator includes a plurality of commutator segments 10, and the plurality of commutator segments 10 are arranged in a ring array, and those skilled in the art should understand that a mica sheet 20 is provided between two of the commutator segments 10, that is, the mica sheet 20 has a good insulation effect. It is worth mentioning that a filler 30 is also provided between the plurality of commutator segments 10, and those skilled in the art should understand that the filler 30 is injection molded in one piece, wherein as Figure 3 The commutation structure of our company shown above has a plurality of protrusions 100 arranged relatively between the plurality of commutator segments 10, and the plurality of protrusions 100 are arranged to limit the position of the filler 30. However, in actual application, due to the small size of the plurality of protrusions 100, the bonding force between the filler 30 and the plurality of protrusions 100 is small, so that the filler 30 is easy to fall off. If the size of the protrusions 100 is increased, the cost will increase. In addition, during the injection molding process of the filler 30, the plurality of commutator segments 10 need to be manually placed on the mold, resulting in low processing efficiency and high cost. Therefore, it is necessary to make certain improvements to the structure of the existing commutator to solve the above problems.

[0028] It should be noted that each of the commutator segments 10 has a first protrusion 11 and a second protrusion 12 on one side close to the filler 30, the first protrusion 11 and the second protrusion 12 are arranged opposite to each other and spaced a predetermined distance apart, and a plurality of first protrusions 11 and a plurality of second protrusions 12 are arranged to limit the position of the filler 30. It is worth mentioning that a plurality of commutator segments 10 together form a first opening 101, a cavity 102 and a second opening 103, the first opening 101 and the second opening 103 are both connected to the cavity 102, and the filler 30 is used for filling. It should also be noted that, unlike the existing method of manually placing a plurality of commutator segments 10 in a mold, the utility model can first assemble a plurality of commutator segments 10 to form a whole, thereby facilitating the user to place the utility model later, and the filler 30 is also more convenient. Specifically, each first protrusion 11 has a first mounting groove 1101 on the side facing away from the commutator segment 10, and both ends of the first mounting groove 1101 are connected to the outside, and multiple first mounting grooves 1101 are located on the same plane, wherein each second protrusion 12 has a second mounting groove on the side facing away from the commutator segment 10, and both ends of the second mounting groove are also connected to the outside, and multiple second mounting grooves are also located on the same plane. The size of the first mounting groove 1101 is consistent with the size of the second mounting groove, and multiple first mounting grooves 1101 are close to the first opening 101, and multiple second mounting grooves are also close to the second opening 103.

[0029] It is worth mentioning that the commutator also includes a first reinforcement ring 40 and a second reinforcement ring 50, and the outer wall of the first reinforcement ring 40 is respectively matched with the multiple first mounting grooves 1101. In addition, in order to further limit the position of the first reinforcement ring 40, a first limiting groove 1102 is also provided on each side wall forming the first mounting groove 1101, and both sides of the first reinforcement ring 40 are also provided with a first annular limiting portion 41, wherein when the first reinforcement ring 40 is matched with the multiple first mounting grooves 1101, the two first annular limiting portions 41 are respectively matched with the multiple first limiting grooves 1102, that is, the connection strength between the first reinforcement ring 40 and the multiple first mounting grooves 1101 is further improved by the two first limiting rings and the multiple first limiting grooves 1102. Similarly, the outer wall of the second reinforcement ring 50 is matched with the plurality of second installation grooves, and a second limiting groove is also provided on each side wall forming the second installation groove, and both sides of the second reinforcement ring 50 are also provided with a second annular limiting portion, wherein when the second reinforcement ring 50 is matched with the plurality of second installation grooves, the two second annular limiting portions are matched with the plurality of second limiting grooves, respectively. That is, the structural force between the plurality of commutator segments 10 and the filler 30 is improved by the first reinforcement ring 40 and the second reinforcement ring 50, thereby improving the performance of the commutator.

[0030] It should also be noted that each of the commutator segments 10 has a first bend 13 on the side facing away from the filler 30, one end of the first bend 13 is connected to the end of the commutator segment 10 close to the first opening 101, and the other end is bent at a predetermined angle and extends a predetermined length in a direction close to the second opening 103. It is worth mentioning that the external enameled wire is located between the first bend 13 and the commutator segment 10. It should be noted that our company did not previously limit the position of the external enameled wire, and thus there would be a problem of cold welding during the welding process. Therefore, our company has made certain improvements to the structure of the commutator segment 10, specifically Figure 2 As shown, the commutator segment 10 has a wire-holding groove 200 on the side facing away from the filler 30, and the wire-holding groove 200 is directly opposite to the first curved portion 13. Specifically, the wire-holding groove 200 is in the shape of an arc-shaped notch, that is, the external enameled wire will be stuck in the wire-holding groove 200, thereby effectively avoiding cold welding or loose spot welding, thereby improving the quality of the welding wire.

[0031] It should also be noted that the end of the commutator segment 10 close to the second opening 103 also has a second bent portion 14, the second bent portion 14 and the commutator segment 10 are integrally formed, and multiple second bent portions 14 cooperate with the filler 30 to improve the bonding force between the commutator segment 10 and the filler 30.

[0032] In summary, the commutator based on the embodiment of the present application is explained, which provides the commutator with advantages such as the filler is not easy to fall off, the position of the external enameled wire can be limited, and the structure is simple.

[0033] It is worth mentioning that in the embodiment of the present application, the 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 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.

[0034] 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 commutator, characterized in that: The commutator comprises: A plurality of commutator segments, wherein the plurality of commutator segments are arranged in a ring array; A filler, the filler is located between the plurality of commutator segments, and each of the commutator segments has a first protrusion on one side close to each other, and each of the first protrusions has a first mounting groove, and both ends of the first mounting groove are connected to the outside, and the plurality of first mounting grooves are located on the same plane; and A first reinforcement ring, wherein the outer wall of the first reinforcement ring is respectively matched with the plurality of the first installation grooves.

2. The commutator according to claim 1, characterized in that: Each of the commutator segments has a second protrusion on one side close to the filler, the first protrusion and the second protrusion are arranged opposite to each other and spaced a predetermined distance apart, and each of the second protrusions has a second mounting groove on one side facing away from the commutator segment, and both ends of the second mounting groove are also connected to the outside, and multiple second mounting grooves are also located on the same plane.

3. The commutator according to claim 2, 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, the size of the first mounting groove is consistent with the size of the second mounting groove, and a plurality of the first mounting grooves are all close to the first opening, and a plurality of the second mounting grooves are also all close to the second opening.

4. The commutator according to claim 3, characterized in that: A first limiting groove is also arranged on each side wall forming the first installation groove, and a first annular limiting portion is also provided on both sides of the first reinforcement ring, wherein when the first reinforcement ring cooperates with a plurality of the first installation grooves, the two first annular limiting portions respectively match with a plurality of the first limiting grooves.

5. The commutator according to claim 4, characterized in that: A second limiting groove is also arranged on each side wall forming the second installation groove, and a second annular limiting portion is also provided on both sides of the second reinforcement ring, wherein when the second reinforcement ring cooperates with a plurality of the second installation grooves, two of the second annular limiting portions respectively cooperate with a plurality of the second limiting grooves.

6. The commutator according to claim 5, characterized in that: Each commutator segment further has a first bent portion on a side away from the filler, one end of the first bent portion is connected to an end of the commutator segment close to the first opening, and the other end is bent at a predetermined angle and extends a predetermined length toward the second opening.

7. The commutator according to claim 6, characterized in that: The side of the commutator segment facing away from the filler is also provided with a wire clamping groove, and the wire clamping groove is also directly opposite to the first curved portion.

8. The commutator according to claim 7, characterized in that: One end of the commutator segment close to the second opening further has a second bent portion, and the second bent portion is integrally formed with the commutator segment.

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