CN220857166U

CN220857166U - Assembled motor commutator

Info

Publication number: CN220857166U
Application number: CN202322608347.1U
Authority: CN
Inventors: 傅益卫
Original assignee: Yueqing Fenfa Electrical Co ltd
Current assignee: Yueqing Fenfa Electrical Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-04-26
Anticipated expiration: 2033-09-25

Abstract

The utility model discloses an assembled motor commutator, which relates to the technical field of motor commutators and comprises a plastic framework, wherein a plurality of first clamping grooves are formed in the plastic framework, a plurality of first limit grooves are formed in the top position of the plastic framework, a plurality of pairs of second limit grooves are formed in the top position of the plastic framework, and the first limit grooves are communicated with the second limit grooves. Compared with the prior art, the connecting plate can be fixed on the plastic framework through injection molding through the first injection molding holes and the space formed by the first clamping grooves, the commutator segments are fixed on the connecting plate through injection molding through the second injection molding holes, and the commutator segments are not required to be installed by using the pressing ring, so that the commutator segments on the surface of the commutator are smooth and smooth, the commutator segments cannot be loosened to be unique during installation, and the symmetry among the commutator segments and the stability of the motor during use are improved.

Description

Assembled motor commutator

Technical Field

The utility model relates to the technical field of motor commutators, in particular to an assembled motor commutator.

Background

The commutator is an important component of the direct current motor and can enable the motor to continuously rotate. The commutator is used for converting the direct current which is locked and passed by the electric brush into alternating current in the winding or converting the alternating electromotive force in the winding into direct current electromotive force on the end of the electric brush, and the commutator mainly has the specifications of hook type, groove type and plane type and is widely applied to electric tools and household appliances. Automotive, motorcycle, etc.

Among the prior art, chinese patent publication No. CN207925854U discloses a dc motor commutator, which comprises commutator segments, copper sheets and an insulating body, wherein the commutator segments are fixed on the outer peripheral surface of the left end of the insulating body at intervals, grooves are formed between any two adjacent commutator segments on the outer peripheral surface of the insulating body, the copper sheets are arranged on the outer peripheral surface of the right end of the insulating body, and the copper sheets are positioned between any two adjacent grooves. Above-mentioned commutator surface levels and sets up, comparatively smooth for the clamping ring is become flexible easily when the installation with the pole piece, causes the pole piece to take place the displacement, leads to symmetry not enough between each pole piece, thereby influences the stability of motor. Thus, we disclose an assembled motor commutator to meet the need.

Disclosure of utility model

The present utility model is directed to an assembled motor commutator, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an assembled motor commutator, includes the plastics skeleton, a plurality of first draw-in grooves have been seted up on the plastics skeleton, a plurality of first spacing grooves have been seted up to the top position department of plastics skeleton, a plurality of pairs of second spacing grooves have been seted up to the top position department of plastics skeleton, first spacing groove with the second spacing groove is linked together, the inner wall sliding connection of first draw-in groove has the fixture block, one side fixedly connected with connecting plate of fixture block, one side of connecting plate with the outer wall looks butt of plastics skeleton, first injection hole has been seted up on the fixture block, the second injection hole has been seted up to one side of connecting plate, one side fixedly connected with of connecting plate a pair of stopper, a pair of equal sliding connection in opposite side of stopper has the switching-over piece, the second draw-in groove has been seted up on the switching-over piece, the second draw-in groove with stopper sliding connection, one side of second draw-in groove with one side looks butt of stopper, one end of switching-over piece with the inner wall looks at the top of first spacing groove.

Preferably, one end of the plastic framework is fixedly connected with a fixing plate, and one side of the fixing plate is fixedly connected with the clamping block, the connecting plate and one end of the reversing piece.

Preferably, one end of the reversing sheet is fixedly connected with a pair of limiting rods, and the pair of limiting rods are in interference fit with the second limiting groove.

Preferably, the connecting plate is provided with a plurality of heat dissipation holes.

Preferably, the clamping block is in a T-shaped structure, and the first clamping groove is matched with the clamping block.

Preferably, the top of gag lever post is provided with the chamfer, the material of gag lever post is rubber material.

Preferably, the fixing plate is fixed with one ends of the plastic framework, the clamping block, the connecting plate and the reversing piece through welding.

Preferably, the clamping block is fixedly connected with the inner wall of the first clamping groove through the first injection molding hole and the injection molding process, and the reversing piece is fixedly connected with the connecting plate through the second injection molding hole and the injection molding process.

The utility model has the technical effects and advantages that:

1. The utility model has reasonable structure, when in use, the clamping block is aligned with the first clamping groove at the bottom of the plastic framework, the upward sliding clamping block drives the connecting plate to synchronously move upwards to the top of the connecting plate to move the top position of the inner wall of the first clamping groove to be abutted with the plastic framework, so that the connecting plate is mounted, at the moment, the connecting plate can be fixed on the plastic framework through injection molding through the space formed by the first injection molding hole and the first clamping groove, the reversing piece is connected with the connecting plate, the second clamping groove is clamped with the limiting block, one side of the reversing piece is abutted with one side of the limiting block, one end of the reversing piece is abutted with the top of the inner wall of the first limiting groove, the pre-mounting of the reversing piece is realized, the reversing piece is fixed on the connecting plate through injection molding through the second injection molding hole, the reversing piece on the surface of the reversing piece is flat and smooth without using a pressing ring, the reversing piece is not loose during mounting, and the symmetry among the reversing pieces and the stability during use of the motor are improved;

2. According to the utility model, the fixed plate is arranged at one end of the plastic framework after the reversing sheet and the connecting plate are installed during use, so that the reversing sheet and the connecting plate are further effectively fixed, the use stability of the reversing sheet is improved, and the fixing effect of the welding mode is more firm;

3. According to the utility model, through the limiting rod, when the commutator segment is installed during use, the second clamping groove is matched with the limiting block, and the commutator segment moves upwards to be clamped with the limiting rod and the second limiting groove, so that the pre-positioning of the installation of the commutator segment is realized, the problem that the commutator segment moves during injection molding and fixing of the commutator segment is effectively avoided, and the stability of the commutator segment during fixing is improved.

Drawings

FIG. 1 is a perspective view of a first view of the present utility model;

FIG. 2 is a schematic view of a second perspective view of the present utility model;

FIG. 3 is a schematic view of an assembled three-dimensional structure of a plastic framework, a reversing sheet and a connecting plate;

FIG. 4 is a schematic view of an assembled three-dimensional structure of a plastic skeleton and a connecting plate;

FIG. 5 is a schematic view of an assembled three-dimensional structure of the connecting plate, the clamping block and the limiting block;

Fig. 6 is a schematic diagram of an assembled perspective structure of the commutator segments and the stop bars.

In the figure: 1. a plastic skeleton; 2. a first clamping groove; 3. a first limit groove; 4. the second limit groove; 5. a connecting plate; 6. a clamping block; 7. a first injection molding hole; 8. a second injection molding hole; 9. a limiting block; 10. a stop block; 11. a heat radiation hole; 12. a reversing sheet; 13. a second clamping groove; 14. a limit rod; 15. and a fixing plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides an assembled motor commutator as shown in fig. 1-6, which comprises a plastic framework 1, wherein a plurality of first clamping grooves 2 are formed in the plastic framework 1, a plurality of first limit grooves 3 are formed in the top position of the plastic framework 1, a plurality of pairs of second limit grooves 4 are formed in the top position of the plastic framework 1, the first limit grooves 3 and the second limit grooves 4 are communicated, clamping blocks 6 are slidably connected to the inner walls of the first clamping grooves 2, one side of each clamping block 6 is fixedly connected with a connecting plate 5, one side of each connecting plate 5 is abutted against the outer wall of the plastic framework 1, a first injection hole 7 is formed in each clamping block 6, one side of each connecting plate 5 is provided with a second injection hole 8, one side of each connecting plate 5 is fixedly connected with a pair of limit blocks 9, two opposite sides of each pair of limit blocks 9 are slidably connected with a reversing piece 12, second clamping grooves 13 are formed in each reversing piece 12, one side of each second clamping groove 13 is slidably connected with each limit block 9, one side of each second clamping groove 13 is abutted against one side of each limit block 10, and one end of each reversing piece 12 is abutted against the top 3.

Through the connecting plate 5 that sets up, when using, aim at the first draw-in groove 2 of plastics skeleton 1 bottom with fixture block 6, upwards slide fixture block 6 drive connecting plate 5 and shift up to the top of connecting plate 5 in step and remove the top position department of first draw-in groove 2 inner wall and plastics skeleton 1 butt, realize the installation to connecting plate 5, accessible first hole 7 of moulding plastics and the space of the formation of first draw-in groove 2 mould plastics so that connecting plate 5 is fixed on plastics skeleton 1 through moulding plastics this moment, be connected with the commutator segment 12 with connecting plate 5 again, make second draw-in groove 13 and stopper 9 joint, one side of commutator segment 12 and one side butt of dog 10, the one end of commutator segment 12 and the top butt of first spacing groove 3 inner wall realize the pre-installation to commutator segment 12, make commutator segment 12 fix on connecting plate 5 through moulding plastics through the second hole 8, need not use the clamping ring to install the commutator segment 12 on the commutator surface, the commutator segment 12 also can not take place to become flexible the unique cause when installing, the symmetry between a plurality of commutator segments 12 and the stability when using is promoted.

Further, in this embodiment, as shown in fig. 2, one end of the plastic framework 1 is fixedly connected with a fixing plate 15, one side of the fixing plate 15 is fixedly connected with one end of the clamping block 6, the connecting plate 5 and the reversing piece 12, and the fixing plate 15 is fixedly welded with one end of the plastic framework 1, the clamping block 6, the connecting plate 5 and the reversing piece 12.

Through the fixed plate 15 that sets up, when using, with the back of commutator segment 12 and connecting plate 5 installation, can install the one end of plastics skeleton 1 with fixed plate 15, further effectively fix commutator segment 12 and connecting plate 5, promoted the stability that the commutator segment 12 used, the fixed effect of welding mode is more firm.

Further, in this embodiment, as shown in fig. 6, one end of the commutator segment 12 is fixedly connected with a pair of limiting rods 14, and the pair of limiting rods 14 are in interference fit with the second limiting groove 4.

Through the gag lever post 14 that sets up, when using, when installing the commutator segment 12 for second draw-in groove 13 cooperatees with stopper 9, and the commutator segment 12 upwards moves gag lever post 14 and the joint of second draw-in groove 4, realizes the prepositioning to the commutator segment 12 installation, effectively avoids appearing the problem that the commutator segment 12 takes place to remove when fixing to the commutator segment 12 injection molding, has promoted the stability when the commutator segment 12 is fixed.

Further, in this embodiment, as shown in fig. 5, a plurality of heat dissipation holes 11 are formed in the connection board 5, and the heat dissipation effect of the connection board 5 is enhanced by the heat dissipation holes 11, so that faults of the motor caused by overheating of the commutator segments 12 are reduced, and the service performance of the commutator segments 12 is further improved.

Further, in this embodiment, as shown in fig. 4-5, the clamping block 6 is in a T-shaped structure, the first clamping groove 2 is adapted to the clamping block 6, and the T-shaped structure facilitates the matching of the clamping block 6 and the first clamping groove 2, so that the connecting plate 5 cannot be pulled out outwards during assembly, and the installation convenience of the connecting plate 5 is improved.

Further, in this embodiment, as shown in fig. 6, the top of the stop lever 14 is provided with a chamfer, the stop lever 14 is made of rubber, the set chamfer makes the stop lever 14 easier to be inserted into the second stop slot 4, and the rubber has a certain toughness and is convenient to be in interference fit with the second stop slot 4.

Further, in this embodiment, as shown in fig. 3 to 4, the clamping block 6 and the inner wall of the first clamping groove 2 are fixedly connected through the first injection molding hole 7 and the injection molding process, the reversing piece 12 and the connecting plate 5 are fixedly connected through the second injection molding hole 8 and the injection molding process, and when the connecting plate 5 and the reversing piece 12 are installed, injection molding and embedding can be directly performed, so that an automatic assembly process is omitted, a process flow is reduced, and the usability of the whole device is improved.

The working principle of the utility model is as follows: when the commutator segment 12 is used, the clamping block 6 is aligned with the first clamping groove 2 at the bottom of the plastic framework 1, the upward sliding clamping block 6 drives the connecting plate 5 to synchronously move upwards to the top of the connecting plate 5, the top position of the inner wall of the first clamping groove 2 is abutted with the plastic framework 1, installation of the connecting plate 5 is achieved, at the moment, the connecting plate 5 is fixed on the plastic framework 1 through injection molding through the space formed by the first injection molding hole 7 and the first clamping groove 2, the commutator segment 12 is connected with the connecting plate 5, the second clamping groove 13 is clamped with the limiting block 9, one side of the commutator segment 12 is abutted with one side of the limiting block 10, one end of the commutator segment 12 is abutted with the top of the inner wall of the first limiting groove 3, pre-installation of the commutator segment 12 is achieved, the commutator segment 12 is fixed on the connecting plate 5 through injection molding through the second injection molding hole 8, the commutator segment 12 on the surface is not required to be installed through a pressing ring, the commutator segment 12 is smooth, the symmetry among the commutator segments 12 and the motor are not loose during installation, and stability during use is improved.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. An assembled motor commutator comprises a plastic framework (1), and is characterized in that: a plurality of first clamping grooves (2) are formed in the plastic framework (1), a plurality of first limiting grooves (3) are formed in the top position of the plastic framework (1), a plurality of pairs of second limiting grooves (4) are formed in the top position of the plastic framework (1), the first limiting grooves (3) are communicated with the second limiting grooves (4), clamping blocks (6) are slidably connected to the inner walls of the first clamping grooves (2), a connecting plate (5) is fixedly connected to one side of the clamping blocks (6), a first injection hole (7) is formed in one side of the connecting plate (5) and is abutted to the outer wall of the plastic framework (1), a second injection hole (8) is formed in one side of the connecting plate (5), a pair of limiting blocks (9) are fixedly connected to one side of the connecting plate (5), a pair of limiting blocks (10) are slidably connected to the opposite sides of the limiting blocks (9), a reversing block (12) is fixedly connected to one side of the opposite sides of the limiting blocks (12), a reversing block (13) is abutted to one side of the reversing block (13), and the reversing block (13) is abutted to one side of the reversing block (13), one end of the reversing piece (12) is abutted against the top of the inner wall of the first limit groove (3).

2. An assembled motor commutator as defined in claim 1, wherein: one end of the plastic framework (1) is fixedly connected with a fixing plate (15), and one side of the fixing plate (15) is fixedly connected with the clamping block (6), the connecting plate (5) and one end of the reversing piece (12).

3. An assembled motor commutator as defined in claim 1, wherein: one end of each reversing sheet (12) is fixedly connected with a pair of limiting rods (14), and the limiting rods (14) are in interference fit with the second limiting grooves (4).

4. An assembled motor commutator as defined in claim 1, wherein: a plurality of heat dissipation holes (11) are formed in the connecting plate (5).

5. An assembled motor commutator as defined in claim 1, wherein: the clamping block (6) is of a T-shaped structure, and the first clamping groove (2) is matched with the clamping block (6).

6. A modular motor commutator as defined in claim 3, in which: the top of gag lever post (14) is provided with the chamfer, the material of gag lever post (14) is rubber material.

7. An assembled motor commutator as defined in claim 2, wherein: the fixing plate (15) is fixed with one end of the plastic framework (1), the clamping block (6), the connecting plate (5) and one end of the reversing piece (12) through welding.

8. An assembled motor commutator as defined in claim 1, wherein: the clamping block (6) is fixedly connected with the inner wall of the first clamping groove (2) through the first injection molding hole (7) and the injection molding process, and the reversing piece (12) is fixedly connected with the connecting plate (5) through the second injection molding hole (8) and the injection molding process.