Groove type commutator insulation structure

Abstract

The utility model discloses a groove type commutator insulation structure, and specifically relates to the groove type commutator technology field, the groove type commutator insulation structure comprises commutator sheets, a plurality of commutator sheets are distributed in an annular array, an insulation sheet is arranged between two adjacent commutator sheets, the middle parts of the plurality of commutator sheets and the insulation sheets are provided with an insulation matrix, and the insulation matrix is provided with an insulation groove. A first ring frame is integrally formed at the bottom end of the insulating base body, a first clamping ring is integrally formed at the top end of the first ring frame, a second ring frame is installed on the top of the insulating base body in a threaded mode, and a second clamping ring is integrally formed at the bottom end of the second ring frame. According to the utility model, through the arrangement of the insulation substrate, the plurality of insulation sheets are cooperatively positioned and clamped, the positioning and clamping of the plurality of commutator sheets are carried out, the assembling stability of the plurality of commutator sheets is increased, and the assembling efficiency of the plurality of commutator sheets is improved. And each commutator sheet or insulating sheet can be conveniently and independently detached for maintenance or replacement subsequently.

Description

Technical Field

[0001] This utility model relates to the field of slot commutator technology, specifically to an insulation structure for a slot commutator. Background Technology

[0002] The slotted commutator is a key component of the armature of DC motors and AC commutator motors. Its main function is to convert current and adjust frequency through the contact between brushes and copper plates. To provide electrical insulation performance and mechanical stability, ensuring the normal operation of the slotted commutator in the motor, some insulation structures are assembled. However, most existing slotted commutator insulation structures are integrated structures, with multiple commutator segments fixedly embedded on the outside of the commutator insulation substrate. The gaps between adjacent commutator segments are filled with insulating material. Slotted commutators with this insulation structure are not convenient for individual disassembly of commutator segments for maintenance, increasing the overall operating cost. Therefore, we propose a slotted commutator insulation structure to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide an insulation structure for a slotted commutator to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a slotted commutator insulation structure, including commutator segments, wherein multiple commutator segments are arranged in a ring array, and an insulating sheet is provided between each pair of adjacent commutator segments. An insulating substrate is provided in the middle of the multiple commutator segments and the insulating sheets. A first ring frame is integrally formed at the bottom end of the insulating substrate, a first retaining ring is integrally formed at the top end of the first ring frame, a second ring frame is threadedly installed at the top of the insulating substrate, and a second retaining ring is integrally formed at the bottom end of the second ring frame.

[0005] The bottom of the plurality of commutator segments and insulating sheets is provided with a first retaining groove corresponding to the first retaining ring, and the first retaining ring is movably engaged in the plurality of first retaining grooves. The top of the plurality of commutator segments and insulating sheets is provided with a second retaining groove corresponding to the second retaining ring, and the second retaining ring is movably engaged in the plurality of second retaining grooves. The middle part of the insulating substrate is provided with a mounting sleeve, and the top of the mounting sleeve is integrally formed with a limit ring.

[0006] Preferably, a first reinforcing ring is fixedly provided in the first retaining ring.

[0007] Preferably, a second reinforcing ring is fixedly provided in the second retaining ring.

[0008] Preferably, the inner wall of the first slot in the insulating sheet is fixedly connected with a positioning protrusion, and the top of the first retaining ring is provided with a positioning slot corresponding to the positioning protrusion, and the positioning protrusion is movably engaged in the corresponding positioning slot.

[0009] Preferably, the outer side of the mounting sleeve is integrally formed with a mounting strip, and the inner side of the insulating substrate is provided with a mounting groove corresponding to the mounting strip, and the mounting strip is movably engaged in the corresponding mounting groove.

[0010] Preferably, the bottom end of the limiting ring is integrally formed with a limiting protrusion, and the top end of the second ring frame is provided with a limiting groove corresponding to the limiting protrusion, and the limiting protrusion is movably engaged in the corresponding limiting groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. By setting an insulating substrate and using multiple insulating sheets for positioning and clamping, multiple commutator segments are positioned and clamped, increasing the stability of the assembly of multiple commutator segments, and making it easier to disassemble each commutator segment or insulating sheet individually for inspection or replacement later.

[0013] 2. By setting an installation clip, the entire slotted commutator is easily installed and fixed in the motor. With the help of the limit clip protrusion that engages with the corresponding limit clip slot, the second ring frame is limited to prevent it from rotating on its own, thereby increasing the stability of the connection between the first ring frame, the second ring frame and the insulating substrate. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structural connection after the present invention is disassembled.

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a schematic diagram showing the structural connection of the insulating substrate, the first ring frame, and the second ring frame in this utility model.

[0019] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0020] Figure 6 This utility model Figure 4Enlarged view of point C in the middle.

[0021] Figure 7 This is a schematic diagram showing the structural connection between the limiting ring and the mounting sleeve in this utility model.

[0022] In the diagram: 1. Commutator segment; 101. First slot; 102. Second slot; 2. Insulating sheet; 21. Positioning protrusion; 3. Insulating substrate; 301. Mounting slot; 4. First ring frame; 5. First retaining ring; 501. Positioning slot; 51. First reinforcing ring; 6. Second ring frame; 601. Limiting slot; 7. Second retaining ring; 71. Second reinforcing ring; 8. Limiting ring; 81. Limiting protrusion; 9. Mounting sleeve; 91. Mounting strip. Detailed Implementation

[0023] 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.

[0024] Example: Figure 1-7 As shown, this utility model provides a slotted commutator insulation structure, including commutator segments 1, multiple commutator segments 1 arranged in a ring array, an insulating sheet 2 between each adjacent pair of commutator segments 1, an insulating substrate 3 in the middle of the multiple commutator segments 1 and insulating sheets 2, a first ring frame 4 integrally formed at the bottom end of the insulating substrate 3, a first retaining ring 5 integrally formed at the top end of the first ring frame 4, a second ring frame 6 threadedly installed at the top of the insulating substrate 3 for connection and fixation between the first ring frame 4, the second ring frame 6 and the insulating substrate 3, and a second retaining ring 7 integrally formed at the bottom end of the second ring frame 6. The first ring frame 4, the first retaining ring 5, the second ring frame 6 and the second retaining ring 7 are all made of insulating material.

[0025] The bottom of multiple commutator segments 1 and insulating sheets 2 is provided with first slots 101 corresponding to the first retaining ring 5. The first retaining ring 5 is movably engaged in multiple first slots 101. A first reinforcing ring 51 is fixedly provided in the first retaining ring 5, which increases the stability of the first retaining ring 5, thereby increasing the stability of the installation of multiple commutator segments 1 and insulating sheets 2.

[0026] The top of multiple commutator segments 1 and insulating sheets 2 is provided with a second slot 102 corresponding to the second retaining ring 7. The second retaining ring 7 is movably engaged in the multiple second slots 102. A second reinforcing ring 71 is fixedly provided in the second retaining ring 7, which increases the stability of the second retaining ring 7 and further increases the stability of the installation of multiple commutator segments 1 and insulating sheets 2.

[0027] An installation sleeve 9 is movably provided in the middle of the insulating substrate 3, and a limit ring 8 is integrally formed at the top of the installation sleeve 9.

[0028] The inner wall of the first slot 101 in the insulating sheet 2 is fixedly connected with a positioning protrusion 21. The top of the first retaining ring 5 is provided with a positioning slot 501 corresponding to the positioning protrusion 21. The positioning protrusion 21 is movably engaged in the corresponding positioning slot 501 to position and engage the insulating sheet 2, which facilitates the individual disassembly and replacement of the insulating sheet 2.

[0029] The outer side of the mounting sleeve 9 is integrally formed with a mounting strip 91, and the inner side of the insulating base 3 is provided with a mounting groove 301 corresponding to the mounting strip 91. The mounting strip 91 is movably engaged in the corresponding mounting groove 301 to position and install the mounting sleeve 9. By setting the mounting sleeve 9, it is convenient to install and fix the entire slot commutator.

[0030] The bottom end of the limiting ring 8 is integrally formed with a limiting protrusion 81, and the top end of the second ring frame 6 is provided with a limiting groove 601 corresponding to the limiting protrusion 81. The limiting protrusion 81 is movably engaged in the corresponding limiting groove 601 to limit the second ring frame 6 and prevent the second ring frame 6 from rotating on its own, thereby increasing the stability of the connection between the first ring frame 4, the second ring frame 6 and the insulating substrate 3.

[0031] Working principle: First, multiple commutator segments 1 and insulating sheets 2 are assembled. Multiple commutator segments 1 and insulating sheets 2 are secured to the outside of the first retaining ring 5 through the first retaining groove 101. At the same time, the positioning protrusion 21 is movably engaged in the corresponding positioning groove 501 to position and secure the insulating sheet 2. This positioning and securing of multiple commutator segments 1 increases the stability of the assembly of multiple commutator segments 1 and facilitates the subsequent individual disassembly of each commutator segment 1 or insulating sheet 2 for inspection or replacement.

[0032] At this time, multiple commutator segments 1 and insulating sheets 2 are arranged in a ring on the outside of the insulating substrate 3. The multiple insulating sheets 2 and the insulating substrate 3 provide insulation between the multiple commutator segments 1, ensuring the normal operation of the slot commutator in the motor.

[0033] Subsequently, the second ring frame 6 is threaded onto the top of the insulating substrate 3. At this time, the second retaining ring 7 is movably engaged in multiple second retaining slots 102, further increasing the stability of the installation of multiple commutator segments 1 and insulating sheets 2.

[0034] Subsequently, the mounting clip 9 is movably engaged in the corresponding mounting slot 301 via the mounting clip 91. At the same time, the limiting clip 81 is movably engaged in the corresponding limiting slot 601 to limit the second ring frame 6, preventing the second ring frame 6 from rotating on its own, thereby increasing the stability of the connection between the first ring frame 4, the second ring frame 6 and the insulating substrate 3.

[0035] By setting the mounting clip 9, it is easy to install and fix the entire slotted commutator in the motor.

[0036] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slotted commutator insulation structure, comprising commutator segments (1), characterized in that: The commutator segments (1) are arranged in a ring array. An insulating sheet (2) is provided between each pair of adjacent commutator segments (1). An insulating substrate (3) is provided in the middle of the plurality of commutator segments (1) and insulating sheets (2). A first ring frame (4) is integrally formed at the bottom end of the insulating substrate (3). A first retaining ring (5) is integrally formed at the top end of the first ring frame (4). A second ring frame (6) is threadedly installed at the top of the insulating substrate (3). A second retaining ring (7) is integrally formed at the bottom end of the second ring frame (6). The bottom of the plurality of commutator segments (1) and insulating sheets (2) is provided with a first retaining groove (101) corresponding to the first retaining ring (5), and the first retaining ring (5) is movably engaged in the plurality of first retaining grooves (101). The top of the plurality of commutator segments (1) and insulating sheets (2) is provided with a second retaining groove (102) corresponding to the second retaining ring (7), and the second retaining ring (7) is movably engaged in the plurality of second retaining grooves (102). The middle part of the insulating substrate (3) is provided with a mounting sleeve (9), and the top of the mounting sleeve (9) is integrally formed with a limit ring (8).

2. The slotted commutator insulation structure according to claim 1, characterized in that: The first retaining ring (5) is fixedly provided with a first reinforcing ring (51).

3. The slotted commutator insulation structure according to claim 1, characterized in that: The second retaining ring (7) is fixedly provided with a second reinforcing ring (71).

4. The slotted commutator insulation structure according to claim 1, characterized in that: The inner wall of the first slot (101) in the insulating sheet (2) is fixedly connected to a positioning protrusion (21), and the top of the first retaining ring (5) is provided with a positioning slot (501) corresponding to the positioning protrusion (21). The positioning protrusion (21) is movably engaged in the corresponding positioning slot (501).

5. The slotted commutator insulation structure according to claim 1, characterized in that: The outer side of the mounting sleeve (9) is integrally formed with a mounting strip (91), and the inner side of the insulating substrate (3) is provided with a mounting groove (301) corresponding to the mounting strip (91). The mounting strip (91) is movably engaged in the corresponding mounting groove (301).

6. The slotted commutator insulation structure according to claim 1, characterized in that: The bottom end of the limiting ring (8) is integrally formed with a limiting protrusion (81), and the top end of the second ring frame (6) is provided with a limiting groove (601) corresponding to the limiting protrusion (81). The limiting protrusion (81) is movably engaged in the corresponding limiting groove (601).

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