A light-weight slot commutator

Abstract

The utility model relates to the technical field of commutator, disclose a light -duty slot type commutator, including a plurality of commutator piece and a plurality of mica piece, a plurality of commutator piece and a plurality of mica piece are mutually spaced, the commutator piece and mica piece all are provided with the clamping block, the clamping block is trapezoidal, the short side of clamping block trapezoidal is connected with commutator piece or mica piece, the clamping block is connected with insulating layer, the insulating layer is cylindrical structure, the clamping block surrounds the outside of insulating layer, the bushing is connected in the inside of insulating layer, this device has solved the problem of light -duty commutator size is smaller, and the installation is inconvenient, and the fixing part is simplified through the clamping block, is more convenient for installation while guaranteeing the stable connection.

Description

Technical Field

[0001] This utility model relates to the field of commutator technology, and more specifically, to a lightweight slotted commutator. Background Technology

[0002] A commutator, also known as a "rectifier," is an important component of the armature of DC motors and AC commutator motors. It consists of many copper plates separated by mica sheets, forming a cylindrical or disc shape. Each copper plate is connected to several armature winding elements. When the armature rotates, the copper plates successively contact the fixed brushes. In a DC motor, the AC current in the armature winding is converted into DC current between the brushes through the brushes and the commutator. In an AC commutator motor, the frequency of the AC current between the brushes is made to meet the operating requirements.

[0003] Chinese utility model patent application number 202421057626.1 discloses a slot-type commutator. The copper sheet can be reinforced by the cooperation of the mounting plate and the slot, thereby improving the stability of the copper sheet and the substrate. However, its installation structure is complicated. When applied to small-sized lightweight commutators, the mounting plate is not easy to manufacture and install, and it is easy to break, affecting the overall quality. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lightweight slot commutator that is easy to install.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A lightweight slotted commutator includes a plurality of commutator segments and a plurality of mica sheets, wherein the plurality of commutator segments and the plurality of mica sheets are arranged at intervals between each other. Each commutator segment and mica sheet is provided with a retaining block. The retaining block is trapezoidal, and the short side of the trapezoidal retaining block is connected to the commutator segment or mica sheet. An insulating layer is snapped onto the retaining block. The insulating layer has a cylindrical structure. The retaining block surrounds the outside of the insulating layer, and a bushing is snapped onto the inside of the insulating layer.

[0007] In one embodiment, the present invention is further configured such that: the insulating layer comprises two insulating layers, each insulating layer having a cylindrical structure and a Z-shaped cross-section; the two insulating layers are respectively snapped onto both sides of the locking block.

[0008] The present invention is further configured such that: the bushing includes a left bushing and a right bushing, both of which are cylindrical structures, and the outer walls of both the left and right bushings are configured as "Z"-shaped structures, and the "Z"-shaped outer walls of the left and right bushings can be respectively snapped into two insulating layers.

[0009] The present invention is further configured such that: the left and right ends of the bushing abut against each other; a plurality of hooks are provided on the end face of the bushing abutting against each other; a plurality of receiving grooves are provided on the corresponding end face of the right bushing; the receiving grooves are provided on the inner wall of the right bushing; a plurality of slots are provided on the other end face of the right bushing; the plurality of slots are connected to the receiving grooves; and the hook tip of the hook can engage with the bottom of the slot.

[0010] The advantages of this utility model are:

[0011] Both the commutator segment and the mica sheet are equipped with locking blocks. The locking blocks have a trapezoidal structure, which divides the insulation layer into two halves that are joined together. After the commutator segment and the mica sheet are locked onto one side of the insulation layer, the other side of the insulation layer is locked onto the locking block to realize the installation of the commutator segment and the mica sheet. Then, the whole assembly is locked onto the bushing to complete the installation of the commutator. This method ensures the stability of the commutator segment and facilitates installation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0013] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0014] Figure 3 for Figure 2 The enlarged view of part B shown;

[0015] In the diagram: 1. Commutator segment; 2. Mica sheet; 3. Locking block; 4. Insulation layer one; 5. Bushing one left; 51. Hook; 6. Bushing one right; 61. Receiving groove; 62. Locking slot. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art described in this application.

[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0019] Please see Figure 1-3 The first embodiment of this utility model is as follows:

[0020] A lightweight slotted commutator includes several commutator segments 1 and several mica sheets 2, which are spaced apart from each other. Each commutator segment 1 and mica sheet 2 is provided with a locking block 3. The locking block 3 is trapezoidal, and the short side of the trapezoidal locking block 3 is connected to the commutator segment 1 or the mica sheet 2. An insulating layer is locked on the locking block 3. The insulating layer has a cylindrical structure. The locking block 3 surrounds the outside of the insulating layer, and a bushing is locked on the inside of the insulating layer.

[0021] The insulation layer includes two insulation layers 4, which are cylindrical structures with a "Z" shaped cross-section. The two insulation layers 4 are respectively snapped onto both sides of the clamping block 3. During installation, the commutator segment 1 and the mica sheet 2 are respectively snapped onto one side of the insulation layer 4, and then the other side of the insulation layer 4 is placed on the other side of the clamping block 3, thereby clamping the commutator segment 1 and the mica sheet 2 from both sides to prevent them from falling off.

[0022] The bushing includes a left bushing 5 and a right bushing 6. Both the left bushing 5 and the right bushing 6 are cylindrical structures. The outer walls of the left bushing 5 and the right bushing 6 are both set as "Z" shaped structures. The "Z" shaped outer walls of the left bushing 5 and the right bushing 6 can be respectively snapped into two insulating layers 4.

[0023] The left end of the bushing 5 and the right end of the bushing 6 abut against each other. Several hooks 51 are provided on the end face of the bushing 5 and the right end of the bushing 6. Several receiving grooves 61 are provided on the corresponding end face of the bushing 6. The receiving grooves 61 are provided on the inner wall of the bushing 6. Several slots 62 are provided on the other end face of the bushing 6. The slots 62 are connected to the receiving grooves 61. The hook tip of the hook 51 can engage with the bottom of the slot 62.

[0024] After the commutator 1 and mica sheet 2 are installed, bushing 5 (left) and bushing 6 (right) can be inserted from both sides. Hook 51 slides through receiving groove 61 and is inserted into groove 62, thereby connecting bushing 5 (left) and bushing 6 (right) together to achieve overall installation.

[0025] When disassembly is required, insert a tool into the slot 62 and push the hook of the hook 51 out of the slot 62, which will separate the left bushing 5 from the right bushing 6, allowing all parts to be disassembled at will.

[0026] Specifically, a locking block 3 is provided on both the commutator segment 1 and the mica sheet 2. The locking block 3 has a trapezoidal structure, which divides the insulation layer into two halves that are joined together. After the commutator segment 1 and the mica sheet 2 are locked onto one side of the insulation layer, the other side of the insulation layer is locked onto the locking block 3 to realize the installation of the commutator segment 1 and the mica sheet 2. Then the whole assembly is locked onto the bushing to complete the installation of the commutator. This ensures the fixation of the commutator segment 1 and facilitates the installation.

[0027] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight slotted commutator, comprising a plurality of commutator segments (1) and a plurality of mica sheets (2), characterized in that: A plurality of commutator segments (1) and a plurality of mica sheets (2) are arranged at intervals. Each commutator segment (1) and mica sheet (2) is provided with a locking block (3). The locking block (3) is trapezoidal, and the short side of the trapezoidal locking block (3) is connected to either the commutator segment (1) or the mica sheet (2). An insulating layer is attached to the locking block (3). The insulating layer has a cylindrical structure. The locking block (3) surrounds the outside of the insulating layer. A bushing is attached to the inside of the insulating layer. The insulating layer includes two insulating layers (4). The structure is cylindrical. The cross-section of the first insulating layer (4) is "Z". The two first insulating layers (4) are respectively snapped onto the two sides of the snap block (3). The bushing includes a left bushing (5) and a right bushing (6). Both the left bushing (5) and the right bushing (6) are cylindrical structures. The outer walls of the left bushing (5) and the right bushing (6) are both set as "Z" shaped structures. The "Z" shaped outer walls of the left bushing (5) and the right bushing (6) can be snapped onto the two first insulating layers (4) respectively.

2. The lightweight slot commutator according to claim 1, characterized in that: The left (5) and right (6) bushings abut against each other at opposite ends. Several hooks (51) are provided on the end face of the left (5) and right (6) bushings. Several receiving grooves (61) are provided on the corresponding end face of the right (6) bushing. The receiving grooves (61) are provided on the inner wall of the right (6) bushing. Several slots (62) are provided on the other end face of the right (6) bushing. Several slots (62) are connected to the receiving grooves (61). The hook tip of the hook (51) can engage with the bottom of the slot (62).

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