Commutator with heat dissipation structure

Abstract

The utility model discloses a commutator with heat dissipation structure relates to commutator technical field, including base, one end fixed mounting of this base has commutator main part, the one end fixed mounting of the base away from commutator main part has heat dissipation mechanism, and the end fixed mounting of heat dissipation mechanism close to commutator main part has auxiliary mechanism, the heat dissipation mechanism includes a plurality of equidistance fixed mounting seat in the one end of base, and one end of a plurality of the mounting seat all is equipped with fan blade. The utility model discloses through the setting of heat dissipation mechanism and auxiliary mechanism can be sent air to commutator main part when the device is rotating continuously, can cool down commutator main part, makes the heat of commutator main part effectively dissipates, keeps the working performance of commutator main part, increases the life of commutator main part, controls the temperature of commutator main part in the safety range, can guarantee motor reliable, high -efficient, long -life operation.

Description

Technical Field

[0001] This utility model relates to the field of commutator technology, and specifically to a commutator with a heat dissipation structure. Background Technology

[0002] A commutator is a key rotating electrical component in DC motors (electric motors or generators) and certain types of AC motors (such as wound-rotor asynchronous motors). Its core function is to achieve periodic automatic switching of the current direction between the rotating armature winding and the stationary external circuit. A commutator is a cylindrical assembly mounted on the motor shaft and rotating synchronously with the rotor. It consists of multiple mutually insulated conductive plates (commutator segments) arranged in a ring.

[0003] It is unavoidable for the commutator to generate heat during operation. High temperature will cause the resin binder in the brush to soften, which will reduce the mechanical strength of the brush. The oxide film will be damaged, causing the brush to rub directly against the copper. Excessive temperature or heat accumulation will trigger a series of chain reactions, which will seriously affect the performance and life of the motor. Utility Model Content

[0004] The purpose of this invention is to provide a commutator with a heat dissipation structure to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A commutator with a heat dissipation structure includes a base, a commutator body fixedly mounted at one end of the base, a heat dissipation mechanism fixedly mounted at the end of the base away from the commutator body, and an auxiliary mechanism fixedly mounted at the end of the heat dissipation mechanism close to the commutator body. The heat dissipation mechanism includes a plurality of mounting seats fixedly mounted at equal intervals at one end of the base, a fan blade mounted at one end of each mounting seat, a fan blade fixedly connected on one side by a fixing ring, and the fan blades are arranged in a ring.

[0007] Using the above technical solution, the auxiliary mechanism also includes a mounting groove on one side of the mounting base. A pressing block is slidably connected inside the mounting groove, and one end of the pressing block passes through the side wall of the mounting base. A horizontal ring is fixedly installed at the bottom end of the pressing block. An auxiliary spring is slidably sleeved at the bottom end of the horizontal ring, and the auxiliary spring is located inside the mounting groove. A limiting post that is slidably connected to the pressing block and the horizontal ring is fixedly installed inside the mounting groove, and a mounting bolt is threaded onto the limiting post.

[0008] A further improvement of this utility model is that: the outer side of the limiting post is provided with a limiting groove, the inner ring of the extrusion block is provided with a protrusion that slides and engages with the outer limiting groove of the limiting post, and the end of the mounting bolt is provided with a mating groove that slides and engages with the protrusion of the inner ring of the extrusion block.

[0009] Using the above technical solution, one end of the fan blade is fixedly installed with a plug-in post, and the end of the mounting base is provided with a plug-in groove that is mutually plugged into and cooperates with the plug-in post.

[0010] A further improvement of the present invention is that: the side walls of several mounting bases are connected to each other by side plates, and the several side plates are arranged in a ring, with fan plates fixedly installed at equal intervals on the outer side of the side plates.

[0011] Using the above technical solution, a reinforcing ring is fixedly installed at the bottom of the fan plate.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] This invention, through the setting of a heat dissipation mechanism and an auxiliary mechanism, can continuously supply air to the commutator body when the device is rotating, thereby cooling the commutator body and effectively dissipating its heat. This maintains the working performance of the commutator body, increases its lifespan, and keeps its temperature within a safe range, ensuring reliable, efficient, and long-life operation of the motor. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a first-view structural schematic diagram of the overall device of this utility model;

[0016] Figure 2 This is a second-view structural schematic diagram of the overall device of this utility model;

[0017] Figure 3 This is a schematic diagram of the heat dissipation mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the auxiliary mechanism of this utility model.

[0019] In the diagram: 1. Base; 2. Commutator body; 3. Heat dissipation mechanism; 4. Auxiliary mechanism; 5. Mounting seat; 6. Fan blade; 7. Fixing ring; 8. Mounting groove; 9. Extrusion block; 10. Horizontal ring; 11. Auxiliary spring; 12. Limiting post; 13. Mounting bolt; 14. Insertion post; 15. Fan plate; 16. Reinforcing ring. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments.

[0021] Example 1

[0022] like Figures 1-4As shown, this utility model provides a commutator with a heat dissipation structure, including: a base 1, a commutator body 2 fixedly installed at one end of the base 1, a heat dissipation mechanism 3 fixedly installed at the end of the base 1 away from the commutator body 2, and an auxiliary mechanism 4 fixedly installed at the end of the heat dissipation mechanism 3 near the commutator body 2; the heat dissipation mechanism 3 includes a plurality of mounting seats 5 fixedly installed at one end of the base 1 at equal intervals, a fan blade 6 installed at one end of each of the mounting seats 5, and one side of each of the fan blades 6 being fixedly connected by a fixing ring 7, and the fan blades 6 being arranged in a ring.

[0023] In this embodiment, when the device is in operation, the base 1 and the commutator body 2 rotate. When the combination of the base 1 and the commutator body 2 rotates, it drives the heat dissipation mechanism 3 to rotate. When the heat dissipation mechanism 3 rotates, it works in sync with the auxiliary mechanism 4. The mutual rotation of the heat dissipation mechanism 3 and the auxiliary mechanism 4 achieves continuous air supply to the commutator body 2, thereby cooling the commutator body 2, preventing the temperature of the commutator body 2 from rising, and further improving the stability of the device during operation.

[0024] Example 2

[0025] like Figure 3 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the auxiliary mechanism 4 further includes a mounting groove 8 opened on one side of the mounting base 5, a pressing block 9 is slidably connected inside the mounting groove 8, and one end of the pressing block 9 passes through the side wall of the mounting base 5. A horizontal ring 10 is fixedly installed at the bottom end of the pressing block 9, and an auxiliary spring 11 is slidably sleeved at the bottom end of the horizontal ring 10. The auxiliary spring 11 is disposed inside the mounting groove 8, and a limiting post 12 that is slidably connected to the pressing block 9 and the horizontal ring 10 is fixedly installed inside the mounting groove 8. A mounting bolt 13 is threadedly connected to the limiting post 12.

[0026] In this embodiment, when the auxiliary mechanism 4 needs to be assembled, the end of the fan blade 6 is inserted into the interior of the mounting base 5. First, the pressing block 9 is pressed into the interior of the mounting base 5 to compress the auxiliary spring 11. Then, it is installed by the mounting bolt 13, which restricts the connection of the fan blade 6. After that, the pressing of the pressing block 9 is released, and the auxiliary spring 11 drives the pressing block 9 and the transverse ring 10 to reset. The pressing block 9 restricts the mounting bolt 13, thereby increasing the stability of the device.

[0027] like Figure 3As shown, preferably, the outer side of the limiting post 12 is provided with a limiting groove, the inner ring of the extrusion block 9 is provided with a protrusion that slides and engages with the outer limiting groove of the limiting post 12, and the end of the mounting bolt 13 is provided with a mating groove that slides and engages with the protrusion of the inner ring of the extrusion block 9.

[0028] In this embodiment, the limiting groove on the outside of the limiting post 12 can maintain the smoothness of the extrusion block 9 when sliding. In addition, the protrusion on the inner ring of the extrusion block 9 can prevent the extrusion block 9 from rotating on its own, and the mating groove at the end of the mounting bolt 13 can increase the insertion fit between the mounting bolt 13 and the extrusion block 9, further improving the stability of the device during operation.

[0029] like Figure 3 As shown, preferably, one end of the fan blade 6 is fixedly installed with a plug post 14, and the end of the mounting base 5 is provided with a plug groove that is mutually plugged and matched with the plug post 14.

[0030] In this embodiment, the insertion post 14 provided at the end of the fan blade 6 can increase the insertion fit between the fan blade 6 and the mounting base 5, and can further improve the stability of the device.

[0031] Example 3

[0032] like Figure 4 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the side walls of a plurality of mounting bases 5 are connected to each other by side plates, and the plurality of side plates are arranged in a ring, and fan plates 15 are fixedly installed at equal intervals on the outer side of the side plates.

[0033] In this embodiment, when the heat dissipation mechanism 3 rotates, the auxiliary mechanism 4 will rotate synchronously. The ring-shaped fan plates 15 will continuously blow air onto the commutator body 2 while rotating, working with the heat dissipation mechanism 3 to cool down the commutator body 2.

[0034] like Figure 4 As shown, preferably, a reinforcing ring 16 is fixedly installed at the bottom end of the fan plate 15.

[0035] In this embodiment, the reinforcement ring 16 can increase the installation strength of the fan plate 15, and further improve the overall stability and overall strength of the device.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A commutator having a heat dissipating structure, characterized by comprising: include: A base (1) is fixedly installed at one end of the base (1), and a heat dissipation mechanism (3) is fixedly installed at the end of the base (1) away from the commutator body (2), and an auxiliary mechanism (4) is fixedly installed at the end of the heat dissipation mechanism (3) near the commutator body (2). The heat dissipation mechanism (3) includes several mounting seats (5) that are fixedly installed at one end of the base (1) at equal intervals. Each of the mounting seats (5) has a fan blade (6) installed at one end. Each of the fan blades (6) is fixedly connected on one side by a fixing ring (7), and the fan blades (6) are arranged in a ring.

2. A commutator with a heat dissipation structure according to claim 1, characterized in that: The auxiliary mechanism (4) also includes a mounting groove (8) opened on one side of the mounting base (5). A pressing block (9) is slidably connected inside the mounting groove (8), and one end of the pressing block (9) passes through the side wall of the mounting base (5). A horizontal ring (10) is fixedly installed at the bottom end of the pressing block (9). An auxiliary spring (11) is slidably sleeved at the bottom end of the horizontal ring (10), and the auxiliary spring (11) is located inside the mounting groove (8). A limiting post (12) is fixedly installed inside the mounting groove (8) and slidably connected to the pressing block (9) and the horizontal ring (10). A mounting bolt (13) is threadedly connected to the limiting post (12).

3. A commutator with a heat dissipation structure according to claim 2, characterized in that: The limiting post (12) has a limiting groove on its outside, the inner ring of the extrusion block (9) has a protrusion that slides with the limiting groove on the outside of the limiting post (12), and the end of the mounting bolt (13) has a mating groove that slides with the protrusion on the inner ring of the extrusion block (9).

4. A commutator with a heat dissipation structure according to claim 3, characterized in that: One end of the fan blade (6) is fixedly installed with a plug-in post (14), and the end of the mounting base (5) is provided with a plug-in groove that is mutually plugged into and cooperates with the plug-in post (14).

5. A commutator with a heat dissipation structure according to claim 4, characterized in that: The side walls of several mounting bases (5) are connected to each other by side plates, and the side plates are arranged in a ring. Fan plates (15) are fixedly installed at equal intervals on the outer side of the side plates.

6. A commutator with a heat dissipation structure according to claim 5, characterized in that: A reinforcing ring (16) is fixedly installed at the bottom of the fan plate (15).

Images