CN211981711U

CN211981711U - Series excited machine for small household electrical appliance

Info

Publication number: CN211981711U
Application number: CN202020961689.5U
Authority: CN
Inventors: 贾力强; 王达
Original assignee: Shaoxing Shangyu Paid He Mechanical And Electrical Co ltd
Current assignee: Shaoxing Shangyu Paid He Mechanical And Electrical Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-11-20
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a series excited machine for small household appliances relates to the motor technology, when aiming at solving and adopting screwed connection stator and support, squints easily between support and the stator and influences the work efficiency of equipment, and its technical scheme main points are: including stator core, there is the support at stator core's both ends through screwed connection, set up the screw hole with screw thread connection on the support, set up the caulking groove that the bisymmetry set up on stator core's the periphery wall, the both ends of support are equipped with the locating piece that inlays in the caulking groove, the joint has the connecting piece between the adjacent support, connecting piece and stator core and two support joints are used for restricting support and stator core separation. The utility model discloses a setting of caulking groove and locating piece and fillet is fixed a position when being convenient for people equipment series excited machine to make to have good axiality between support and the stator core, make the even effect of rotatory magnetic field energy that coil winding produced on the rotor, improve series excited machine moving stability.

Description

Series excited machine for small household electrical appliance

Technical Field

The utility model relates to a motor technology, more specifically say, it relates to a series excited machine for small household electrical appliances.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor is used for generating driving torque and serving as a power source of electric appliances or various machines. The series excited machine is a machine which adopts a commutator and an electric brush to realize electronic commutation, wherein a stator winding (namely an excitation winding) and a rotor winding (namely an armature winding) are connected in series through the electric brush and the commutator, and the machine is commutated by utilizing an electromagnetic principle.

The Chinese patent with publication number CN209419456U discloses a novel series excited machine, which has the technical key points that: the stator comprises a rotating shaft, a front bracket, a rear bracket, a stator core, a commutator and a self-locking screw; one end of the rotating shaft is rotatably assembled on the front support, the other end of the rotating shaft is rotatably assembled on the rear support, the rear support is provided with a first through hole, the stator core is provided with a second through hole, the front support is provided with a threaded hole, a self-locking screw sequentially penetrates through the first through hole and the second through hole and is in threaded assembly in the threaded hole so as to fix the stator core between the front support and the rear support, and the commutator is positioned in the front support; the commutator comprises: the copper sheets are uniformly adhered to the peripheral wall of the body at intervals; the peripheral width of the stator core is between 44-45 mm.

Adopt the copper sheet of 9-11 pieces in the above-mentioned scheme, guarantee that the interval between the adjacent copper sheet is less to ensure the work smoothness nature of motor, but when adopting self-locking screw to make fore-stock, stator core and after-poppet to connect, need aim at first through-hole, second through-hole and screw hole, the work efficiency of inconvenient people's equipment fore-stock, after-poppet and stator core.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a series excited machine for little household electrical appliances through the setting of caulking groove and locating piece and fillet, fixes a position when being convenient for people equipment series excited machine to make to have good axiality between support and the stator core, make the even effect of rotating magnetic field energy that coil winding produced on the rotor, improve series excited machine moving stability.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a series excited machine for small household appliances, includes stator core, there is the support at stator core's both ends through screwed connection, set up the screw hole with screw thread connection on the support, set up the caulking groove that the bisymmetry set up on stator core's the periphery wall, the both ends of support are equipped with the locating piece that inlays in the caulking groove, and are adjacent the joint has the connecting piece between the support, connecting piece and stator core and two support joints are used for restricting support and stator core separation.

Through adopting above-mentioned technical scheme, because the both ends of support set up the locating piece, and set up the caulking groove that the symmetry set up on stator core's the periphery wall, make when connecting stator core and support, can pass through locating piece embedding caulking groove, realize support and stator core's calibration, and then improve the axiality between rotor and the stator core, improve rotor pivoted stationarity, and through two connecting pieces and two supports and stator core joints, improve the ascending axiality of axial direction between support and the stator core, the mode that adopts the joint is fixed in advance support and stator core, play the effect of calibration to the screw connection, be convenient for people equipment series excited machine.

The utility model discloses further set up to: the connecting piece is arch-shaped, two ends of the connecting piece are respectively attached to the outer surfaces of two adjacent ends of the bracket, and one side of the connecting piece, which faces the stator core, is provided with a fillet embedded in the caulking groove.

Through adopting above-mentioned technical scheme, because the connecting piece sets up the fillet that inlays in the caulking groove towards one side of stator core, realize the joint strength between connecting piece and the stator core to play the effect of location to the connecting piece, and paste in the both ends of support through the both ends of arched connecting piece, and then carry out the centre gripping to two supports and stator core, the people's installation of being convenient for improves the work efficiency that people assembled.

The utility model discloses further set up to: and two ends of the insertion strip are abutted against the positioning blocks at two ends of the adjacent bracket.

Through adopting above-mentioned technical scheme, because the both ends of fillet are contradicted with the locating piece each other for the caulking groove can be filled up to fillet and locating piece, increases the area of being connected between support and connecting piece and the stator core, and then improves the joint strength between connecting piece and support and the stator core.

The utility model discloses further set up to: the connecting piece has elastic recovery characteristic, and when the fillet is embedded in the caulking groove, the positioning block is clamped between the fillet and the end head of the connecting piece.

Through adopting above-mentioned technical scheme, the connecting piece has the elastic recovery characteristic, and the fillet supports in the locating piece, makes the connecting piece can take place elastic deformation, and then plays the effect of centre gripping to the locating piece, improves the joint strength between support and the stator core.

The utility model discloses further set up to: the both ends of connecting piece are equipped with the elastic component that is the U-shaped, when the screw runs through connecting piece, support and stator core in proper order, the elastic component provides the effort of screw stator core dorsad throughout.

Through adopting above-mentioned technical scheme, be the elastic component of U-shaped through the connecting piece both ends for when the screw passed connecting piece, support and stator core, can extrude elastic component and take place elastic deformation, and then the frictional force between strip screw and the support plays the effect of better screw auto-lock.

The utility model discloses further set up to: the elastic part is provided with a through hole communicated with the threaded hole, and a threaded section connected with the screw thread is arranged in the through hole at one side of the elastic part, which is far away from the stator core.

Through adopting above-mentioned technical scheme, through the through-hole that has the screw thread section for when the screw passed stator core and support and connecting piece threaded connection, can not only make screw extrusion elasticity portion, and enable the elasticity portion of the terminal department of screw and take place elasticity and go on, further improve screw thread auto-lock effect.

To sum up, the utility model discloses following beneficial effect has:

because the both ends of support set up the locating piece, and set up the caulking groove that the symmetry set up on stator core's the periphery wall, make when connecting stator core and support, can pass through locating piece embedding caulking groove, realize support and stator core's calibration, and then improve the axiality between rotor and the stator core, improve rotor pivoted stationarity, and through two connecting pieces and two supports and stator core joints, improve the ascending axiality of axial direction between support and the stator core, the mode that adopts the joint is fixed in advance to support and stator core, play the effect of calibration to the screw connection, the people of being convenient for equipment series excited machine.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure: 1. a stator core; 2. a screw; 3. a support; 4. a threaded hole; 5. caulking grooves; 6. positioning blocks; 7. a connecting member; 8. a fillet; 9. an elastic portion; 10. and a through hole.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A series excited machine for small household appliances is disclosed, as shown in figure 1, figure 2 and figure 4, comprising a stator core 1 formed by laminating a plurality of silicon steel sheets with the thickness of 0.2mm, two ends of the stator core 1 are connected with a bracket 3 through screws 2, the bracket 3 is provided with a threaded hole 4 in threaded connection with the screw 2, the screw 2 penetrates from the bracket 3 at one end of the stator core 1 to the other end of the stator core 1 and is in threaded connection with the other bracket 3 through the threaded hole 4, and the peripheral wall of the plurality of silicon steel sheets is formed with symmetrically arranged concave parts through punching, so that two symmetrically arranged caulking grooves 5 are formed on the peripheral wall of the laminated stator core 1, the caulking grooves 5 are arranged along the axial direction of the stator core 1 and penetrate through the stator core 1, two ends of the bracket 3 are formed with positioning blocks 6, the positioning blocks 6 are used for embedding the caulking grooves 5 to realize the clamping connection of the bracket 3 and the stator core 1, and the joint has connecting piece 7 between adjacent support 3, and connecting piece 7 and stator core 1 and two 3 joints of support are used for restricting the separation of support 3 and stator core 1.

As shown in fig. 2 and 3, the connecting member 7 is formed by integrally molding a spring steel material, so that the connecting member 7 has good elastic recovery characteristics, the connecting member 7 is overall arched, two ends of the connecting member 7 are formed with U-shaped elastic parts 9, the elastic parts 9 are formed with L-shaped spaces, the arc parts of the elastic parts 9 are horizontally arranged towards the axial direction of the stator core 1, two end faces of the elastic parts 9 are provided with through holes 10 which have the same size as the threaded holes 4 and are coaxially arranged, a threaded section which is in threaded connection with the screw 2 is formed in the through hole 10 at one side of the elastic part 9 far away from the stator core 1 by tapping, opposite faces of the two elastic parts 9 are respectively attached to the outer top surfaces at two ends of the two brackets 3, one side of the connecting member 7 towards the stator core 1 is welded with a fillet 8 embedded in the embedded groove 5, when the fillet 8 is embedded in the embedded groove 5, the through holes 10 are coaxially arranged with the, and the two ends of the fillet 8 are abutted against the positioning blocks 6 at the two ends of the adjacent bracket 3, and the positioning blocks 6 are clamped between the fillet 8 and the end head of the connecting piece 7, when the screw 2 sequentially penetrates through the connecting piece 7, the bracket 3 and the stator core 1, one end of the elastic part 9, which is far away from the stator core 1, is elastically deformed under the extrusion effect of the screw 2, so that the elastic part 9 always provides an acting force of the screw 2 against the stator core 1.

The working process is as follows: when assembling the series motor, the rotor penetrates through the stator core 1, then the two brackets 3 are respectively placed on the two sides of the stator core 1 and connected with the stator core 1 along the axial direction of the stator core 1, because the two ends of the brackets 3 are fixedly connected with the positioning blocks 6, and the caulking grooves 5 are formed on the peripheral wall of the stator core 1, the brackets 3 can be clamped through the caulking grooves 5 and the positioning blocks 6, so that people can conveniently connect the brackets 3 and the stator core 1, and have a good calibration and positioning effect on the brackets 3, then the arched connecting piece 7 is buckled between the two brackets 3, the opposite surfaces of the elastic parts 9 at the two ends of the connecting piece 7 are attached to the top surfaces at the two ends of the brackets 3, the fillet 8 is embedded into the caulking grooves 5, the caulking grooves 5 are filled through the positioning blocks 6 and the fillet 8, when the fillet 8 is embedded into the caulking groove 5, the two ends of the fillet 8 extrude the positioning blocks 6, the end of the bracket 3 is clamped between the embedded strip 8 and the elastic part 9, the connecting strength of the bracket 3 and the stator core 1 is improved through the connecting part 7, the coaxiality of the bracket 3 and the stator core 1 during assembly is improved through the arrangement of the embedded groove 5, the positioning block 6 and the embedded strip 8, people can conveniently enable the screw 2 to penetrate through the connecting part 7, the bracket 3 and the stator core 1 to realize connection, because the elastic part 9 is U-shaped, when the screw 2 penetrates through the end of the connecting part 7 and is in threaded connection with the bracket 3, because the threaded section is arranged in the through hole 10 at one side of the elastic part 9, which is far away from the stator core 1, when the screw 2 is screwed down, the friction force at the threaded connection part of the screw 2 and the connecting part 7 can be improved through the elastic part 9 which is U-shaped, the effect of better thread self-locking is achieved, the connecting strength of the bracket 3 and the, and through the setting of caulking groove 5 and locating piece 6 and fillet 8, fix a position when being convenient for people equipment series excited machine to make and have good axiality between support 3 and the stator core 1, make the even effect of rotatory magnetic field ability that coil winding produced on the rotor, improve series excited machine moving stability.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a series excited machine for small household appliances which characterized in that: including stator core (1), the both ends of stator core (1) are connected with support (3) through screw (2), set up screw hole (4) with screw (2) threaded connection on support (3), caulking groove (5) that the bisymmetry set up are seted up on the periphery wall of stator core (1), the both ends of support (3) are equipped with locating piece (6) that inlay in caulking groove (5), and are adjacent the joint has connecting piece (7) between support (3), connecting piece (7) and stator core (1) and two support (3) joints are used for restricting support (3) and stator core (1) separation.

2. The series-excited machine for small household electrical appliances according to claim 1, characterized in that: the connecting piece (7) is arched, the two ends of the connecting piece (7) are respectively attached to the outer surfaces of the two ends of the adjacent bracket (3), and a fillet (8) embedded in the caulking groove (5) is arranged on one side, facing the stator core (1), of the connecting piece (7).

3. The series-wound motor for small household electrical appliances according to claim 2, characterized in that: two ends of the insertion strip (8) are abutted against the positioning blocks (6) at two ends of the adjacent bracket (3).

4. The series-wound motor for small household electrical appliances according to claim 3, characterized in that: the connecting piece (7) has elastic recovery characteristics, and when the insertion strip (8) is embedded in the insertion groove (5), the positioning block (6) is clamped between the insertion strip (8) and the end head of the connecting piece (7).

5. The series-wound motor for small household electrical appliances according to claim 2, characterized in that: the both ends of connecting piece (7) are equipped with elasticity portion (9) that are the U-shaped, when screw (2) run through connecting piece (7), support (3) and stator core (1) in proper order, elasticity portion (9) provide the effort of screw (2) stator core (1) dorsad throughout.

6. The series-wound motor for small household electrical appliances according to claim 5, characterized in that: the stator core is characterized in that a through hole (10) communicated with the threaded hole (4) is formed in the elastic part (9), and a threaded section connected with the screw (2) in a threaded mode is arranged in the through hole (10) on one side, away from the stator core (1), of the elastic part (9).