Combined commutator

Abstract

The utility model relates to the technical field of motors, in particular to a combined commutator, which comprises a base and copper sheets, a plurality of groups of copper sheets are arranged on the peripheral side of the base, a bent pin is arranged at the center of one end of each copper sheet, and the combined commutator further comprises a connecting piece which comprises a support ring, a guide frame and a connecting seat, a supporting ring is arranged on the outer wall of the end, away from the bent foot, of the base. And the base is also provided with the fixing pieces for fixing the plurality of groups of copper sheets. The copper sheet is connected with the base through the connecting piece instead of traditional glue joint. When a certain copper sheet is locally damaged, only the corresponding connecting piece needs to be disassembled, the damaged copper sheet needs to be replaced, the whole commutator does not need to be replaced, resource waste is greatly reduced, and maintenance cost is reduced. The guide frame of the connecting piece is T-shaped and vertically through, and is matched with the T-shaped groove on the connecting seat on the back side of the copper sheet, so that a good guide effect can be achieved during installation, the copper sheet can be conveniently, quickly and accurately installed, and the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a combined commutator. Background Technology

[0002] The commutator is a key component in DC motors and AC commutator motors. It is generally composed of multiple commutator segments, which are usually made of copper, arranged in a ring, and insulated from each other. The commutator segments are separated by insulating materials such as mica sheets to prevent short circuits.

[0003] Existing commutator segments and bases are often glued together. When a local part is damaged, the whole unit becomes unusable, which easily leads to a waste of resources. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a combined commutator.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combined commutator, comprising a base and copper plates, wherein a plurality of sets of copper plates are arranged around the periphery of the base, and a bent leg is provided at the center of one end of each copper plate, and further comprising:

[0008] The connector includes a support ring, a guide frame, and a connecting seat. The support ring is provided on the outer wall of the base away from the bent foot. Several sets of guide frames are provided above the support ring. The guide frames are T-shaped and have through holes on the upper and lower sides. The support ring is provided with through holes that fit the guide frames. The back side of the copper sheet is provided with a connecting seat that connects to the guide frames. The connecting seat is provided with a T-shaped groove that fits the guide frames.

[0009] The base is also provided with fasteners for fixing several sets of copper sheets.

[0010] Preferably, the fixing component includes an inner ring, a positioning block, a locking block, and a pressure plate. The base is also provided with an inner ring near the bent foot. The outer diameter of the inner ring is smaller than that of the base. Several sets of positioning blocks are provided on the outer side of the inner ring. The locking block is provided on the side of the positioning block away from the inner ring. The pressure plate is provided with a positioning groove that matches the positioning block on its inner side. The positioning groove is also provided with a locking groove that matches the locking block. The pressure plate is provided with a flange that abuts against the guide frame near the bent foot.

[0011] To ensure the stability of the pin, the present invention is improved in that the flange is U-shaped, the two free ends of the flange are located on the left and right sides of the bent foot, and the flange is provided with a vent hole that matches the through hole.

[0012] Preferably, the outer side of the pressure plate away from the bent foot is also provided with an unlocking groove, and the unlocking groove is configured to be a number of evenly arranged groups.

[0013] Preferably, both the unlocking slot and the card block are disposed on the periphery of the guide frame.

[0014] To ensure the strength of the support ring, this utility model is improved by providing a reinforcing rib connected to the base at the end of the support ring near the bent foot.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a combined commutator, which has the following advantages:

[0017] In this modular commutator, the copper plates are connected to the base via connectors, rather than using traditional adhesive bonding. When a copper plate is partially damaged, only the corresponding connector needs to be removed and the damaged copper plate replaced, eliminating the need to replace the entire commutator. This significantly reduces resource waste and lowers maintenance costs.

[0018] The guide frame of the connector is T-shaped and runs vertically through, which matches the T-shaped groove on the back of the copper sheet connector. It provides good guidance during installation, making it convenient, quick and accurate to install the copper sheet and improving assembly efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Base; 2. Copper sheet; 3. Bend; 4. Support ring; 5. Guide frame; 6. Connecting seat; 7. Inner ring; 8. Positioning block; 9. Locking block; 10. Pressure plate; 11. Flange; 12. Reinforcing rib. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 A combined commutator includes a base 1 and copper plates 2. Several sets of copper plates 2 are arranged around the periphery of the base 1. A bent leg 3 is provided at the center of one end of each copper plate 2. The commutator also includes:

[0026] The connector includes a support ring 4, a guide frame 5, and a connecting seat 6. The base 1 has a support ring 4 on its outer wall away from the bent foot 3. Several sets of guide frames 5 are arranged above the support ring 4. The guide frames 5 are T-shaped and have through holes on both the upper and lower sides. The support ring 4 has through holes that fit the guide frames 5. The copper sheet 2 has a connecting seat 6 on its back side that connects to the guide frames 5. The connecting seat 6 has a T-shaped groove that fits the guide frames 5.

[0027] When installing copper sheet 2, the T-shaped groove on the connecting seat 6 on the back of copper sheet 2 is aligned with the guide frame 5 on the support ring 4 using the guiding action of the connector. Since the guide frame 5 is T-shaped and runs vertically through it, the T-shaped groove fits perfectly. Following the shape of the guide frame 5, copper sheet 2 can be quickly and accurately installed into the corresponding position on the base 1, improving assembly efficiency.

[0028] The base 1 is also provided with a fixing component for fixing several sets of copper sheets 2.

[0029] In this embodiment, the fixing component includes an inner ring 7, positioning blocks 8, locking blocks 9, and a pressure plate 10. The base 1 is also provided with an inner ring 7 near the bent leg 3. The outer diameter of the inner ring 7 is smaller than that of the base 1. Several sets of positioning blocks 8 are provided on the outer side of the inner ring 7. Locking blocks 9 are provided on the side of the positioning blocks 8 away from the inner ring 7. The pressure plate 10 has a positioning groove on its inner side that matches the positioning blocks 8, and a locking groove in the positioning groove that matches the locking blocks 9. The pressure plate 10 has a flange 11 near the bent leg 3 that abuts against the guide frame 5. The inner ring 7 of the fixing component is installed on the base 1 near the bent leg 3, and its outer diameter is smaller than that of the base 1, so it does not affect the installation and use of other components. The positioning blocks 8 and locking blocks 9 on the outer side of the inner ring 7 cooperate with the positioning groove and locking groove on the inner side of the pressure plate 10. When installing the pressure plate 10, the positioning block 8 is embedded in the positioning groove, and the locking block 9 is embedded in the locking groove, achieving initial positioning and fixation of the pressure plate 10. The flange 11 of the pressure plate 10 near the bent leg 3 abuts against the guide frame 5, further pressing and fixing the copper sheet 2 to prevent it from shaking or shifting on the base 1. The flange 11 is U-shaped, with its two free ends located on the left and right sides of the bent leg 3. The flange 11 is provided with vent holes that match the through holes, which can surround and limit the bent leg 3 of the copper sheet 2. When the motor vibrates or is subjected to external force, the U-shaped flange 11 can effectively limit the range of motion of the bent leg 3, ensuring the stability of the pin. The vent holes on the flange 11 can balance the internal and external air pressure and reduce the weight of the pressure plate 10 to a certain extent without affecting its fixing effect on the copper sheet 2.

[0030] When a copper plate 2 is partially damaged and needs to be replaced, the pressure plate 10 can be easily disassembled by applying force through the evenly distributed unlocking slots on the pressure plate 10. Both the unlocking slots and the locking blocks 9 are located around the guide frame 5 for easy operation. After removing the pressure plate 10, the connecting parts can be further disassembled to separate the damaged copper plate 2 from the base 1. Then, a new copper plate 2 can be installed, and the connecting parts and pressure plate 10 can be reinstalled to complete the replacement of the copper plate 2. This avoids replacing the entire commutator, reducing resource waste and maintenance costs.

[0031] The reinforcing rib 12, located near the bend 3 on the support ring 4, is connected to the base 1, increasing the structural strength of the support ring 4. During motor operation, the support ring 4 bears the weight of the copper sheet 2 as well as the vibration and impact forces generated by the motor. The reinforcing rib 12 effectively disperses these forces, preventing the support ring 4 from deforming or being damaged, and ensuring the stable support of the support ring 4 for the copper sheet 2 and other components.

[0032] Through holes and vents can also serve to ventilate and dissipate heat, ensuring the stability of equipment operation.

[0033] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A combined commutator, comprising a base (1) and copper plates (2), wherein a plurality of sets of copper plates (2) are arranged around the periphery of the base (1), and a bent leg (3) is provided at the center of one end of each copper plate (2), characterized in that, Also includes: The connector includes a support ring (4), a guide frame (5), and a connecting seat (6). The base (1) has a support ring (4) on its outer wall away from the bent foot (3). Several sets of guide frames (5) are provided above the support ring (4). The guide frames (5) are T-shaped and have through-holes on the upper and lower sides. The support ring (4) has through holes that are compatible with the guide frames (5). The copper sheet (2) has a connecting seat (6) on its back side that is connected to the guide frames (5). The connecting seat (6) has a T-shaped groove that is compatible with the guide frames (5). The base (1) is also provided with a fixing component for fixing several sets of copper sheets (2).

2. The combined commutator according to claim 1, characterized in that, The fastener includes an inner ring (7), a positioning block (8), a locking block (9), and a pressure plate (10). The base (1) is also provided with an inner ring (7) near the bent foot (3). The outer diameter of the inner ring (7) is smaller than that of the base (1). Several sets of positioning blocks (8) are provided on the outer side of the inner ring (7). The locking block (9) is provided on the side of the positioning block (8) away from the inner ring (7). The inner side of the pressure plate (10) is provided with a positioning groove that matches the positioning block (8). The positioning groove is also provided with a locking groove that matches the locking block (9). The pressure plate (10) is provided with a flange (11) that abuts against the guide frame (5) near the bent foot (3).

3. A combined commutator according to claim 2, characterized in that, The flange (11) is U-shaped, and the two free ends of the flange (11) are located on the left and right sides of the bent foot (3). The flange (11) is provided with a vent hole that matches the through hole.

4. A combined commutator according to claim 3, characterized in that, The pressure plate (10) is provided with an unlocking groove on the outer side of the end away from the bent foot (3), and the unlocking groove is arranged in several groups evenly.

5. A combined commutator according to claim 4, characterized in that, The unlocking slot and the card block (9) are both located around the guide frame (5).

6. A combined commutator according to claim 5, characterized in that, The support ring (4) is also provided with a reinforcing rib (12) connected to the base (1) at one end near the bent foot (3).

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