CN212210619U

CN212210619U - Micro generator

Info

Publication number: CN212210619U
Application number: CN202020986098.3U
Authority: CN
Inventors: 兰新禄; 马清水; 胡金保; 祝传宝
Original assignee: Xiamen Lota International Co Ltd
Current assignee: Xiamen Lota International Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-12-22
Anticipated expiration: 2030-06-02

Abstract

The utility model provides a microgenerator, including stator, rotor, pivot, water deflector and bearing, stator and rotor are connected through the pivot, be equipped with the holding on the stator the holding chamber of bearing and pivot, the water deflector is located the rotor upper end is used for stopping the pivot roll-off, be equipped with the friction pad piece between bearing and the rotor, still include the backing sheet, the backing sheet includes first backing sheet and second backing sheet at least, the backing sheet is divided and is put just support tightly on stator and the rotor friction pad piece. The utility model discloses an increase and fix the backing sheet on stator and rotor, improve friction pad's plane degree, prevent that friction pad from wearing and tearing attenuation, warp easily and cliping the rotor card scheduling problem that dies, improve friction pad's life to increase the life of motor.

Description

Micro generator

Technical Field

The utility model relates to a generator technical field particularly, relates to a miniature generator.

Background

At present, a micro hydroelectric generating set generally comprises a rotor and a stator coil, wherein the rotor is a rotating shaft and a permanent magnet, a bearing, a sealing ring, an impeller, a water guide plate, a support, a friction gasket and the like, the friction gasket and a contact surface are in relative motion, generally, the end surface of the bearing or the support is in contact with the friction gasket, the gasket can also rotate and move relative to the contact surface at times because the impeller rotates at high speed, when the contact surface is uneven or the support strength is insufficient, the gasket deformation phenomenon can occur, the friction resistance is increased, even the rotor is clamped by deformation, and the condition that the rotor cannot rotate and fail under the condition of low water.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a micro generator, simple structure, the operation is convenient, aims at improving friction pad's plane degree, also improves its wear-resisting life's problem.

The utility model adopts the following scheme:

the utility model provides a microgenerator, includes stator, rotor, pivot, water deflector and bearing, stator and rotor are connected through the pivot, be equipped with the holding on the stator the holding chamber of bearing and pivot, the water deflector is located the rotor upper end is used for stopping the pivot roll-off, be equipped with the friction pad between bearing and the rotor, still include the backing sheet, the backing sheet includes first backing sheet and second backing sheet at least, the backing sheet is put separately just support tightly on stator and the rotor the friction pad.

As a further improvement, the water guide plate is provided with a bulge which is mutually contacted with the end surface of the rotating shaft.

As a further improvement, the bulges are of a spherical or conical structure.

As a further improvement, the holding chamber is stepped, and includes a first holding chamber tightly fitted with the rotating shaft, a second holding chamber tightly fitted with the bearing, and a third holding chamber for holding the first support piece, the height of the second holding chamber is consistent with the width of the bearing, one side surface of the first support piece is abutted against the bearing, and the first support piece is fixed on the third holding chamber through riveting.

As a further improvement, the rotor is provided with a groove for accommodating a second supporting sheet, and the second supporting sheet is fixed on the groove by riveting.

As a further improvement, a conical surface is arranged on the stator, and the water guide plate is matched with the stator along the conical surface.

As a further improvement, the supporting sheet is made of stainless steel.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

1. the utility model discloses an increase and fix the backing sheet on stator and rotor, improve friction pad's plane degree, prevent that friction pad from wearing and tearing attenuation, warp easily and cliping the rotor card scheduling problem that dies, improve friction pad's life to increase the life of motor.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

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

fig. 2 is a schematic diagram of the symmetrical cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the symmetrical cross-sectional structure of the fixing base of the present invention;

icon: 1-a stator; 2-a rotor; 3-a rotating shaft; 4-a bearing; 5-a rubbing pad; 6-support sheet; 7-a water deflector; 11-stator coil group; 12-a fixed seat; 21-an impeller; 22-permanent magnet; 23-a groove; 61 a first support sheet; 62-a second support sheet; 71-a bump; 72-a containment chamber; 121-an accommodating cavity; 122-a tapered surface; 1211-a first accommodating cavity; 1212-a second containing cavity; 1213-third housing chamber.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Combine fig. 1 and fig. 2, this embodiment provides a microgenerator, including stator 1, rotor 2, pivot 3, water guide plate 7 and bearing 4, stator 1 includes stator coil group 11 and fixing base 12, rotor 2 includes impeller 21 and permanent magnet 22, is equipped with the holding chamber 121 of holding bearing 4 and pivot 3 on fixing base 12, and stator 1 and rotor 2 are connected through pivot 3, and pivot 3 cup joints and makes rotor 2 rotatory on stator 1 on bearing 4, reduces the coefficient of friction of pivot 3. The top of the rotating shaft 3 is also provided with a water guide plate 7 for preventing the rotating shaft 3 from sliding out or falling off, the water guide plate 7 is provided with an accommodating cavity 72 for matching with the rotor 2, and the water guide plate 7 is matched with the fixed seat 12 so as to limit the rotating shaft 3 between the two. The middle of the bottom of the accommodating cavity 72 of the water guide plate 7 is provided with a protrusion 71 which is in contact with the end surface of the rotating shaft 3, in order to better reduce the friction between the end surface of the rotating shaft 3 and the water guide plate 7, in the embodiment, the shape of the longitudinal section of the protrusion 71 is semicircular or V-shaped, so that the spherical or conical structure of the protrusion 71 is changed from the original surface-to-surface friction into the point-to-point friction, and the friction area is reduced. Furthermore, a tapered surface 122 is arranged on the fixed seat 12, and a taper matched with the receiving cavity 72 of the water deflector 7 is arranged in the receiving cavity 72, so that the water deflector and the receiving cavity can be better guided and matched along the tapered surface 122 when the water deflector and the receiving cavity are matched.

Friction pads 5 are also provided between the bearing 4 and the rotor 2, by means of which friction pads 5 the direct contact friction between the rotor 2 and the stator 1 is reduced. In the present embodiment, at least two or more rubbing pads 5 are required in order to increase the life of the rubbing pads 5. However, the friction pad 5 is prone to be worn and thinned, warped and deformed during the high-speed rotation of the impeller 21, and the rotor 2 is clamped by the warped and deformed, so that the friction pad with relatively good mechanical strength and relatively low friction coefficient can be selected, and the service life of the friction pad can be prolonged by changing the service environment of the friction pad. Specifically, a support plate 6 is further provided, the support plate 6 includes a first support plate 61 and a second support plate 62, the first support plate 61 and the second support plate 62 are distributed on the stator 1 and the rotor 2, and when the stator 1 and the rotor 2 are assembled, the first support plate 61 and the second support plate 62 press the friction pad 5 therebetween. In this embodiment, backing sheet 6 uses stainless steel material to make, and the plane degree that is used for two holding surfaces of support piece 5 of support tightly is high and mechanical strength is high moreover, when friction pad 5 and backing sheet 6 contact surface produced relative motion, can improve friction pad 5's plane degree, and simultaneously, the heat conduction that the stainless steel can be fine can avoid the accumulation that friction pad 5 friction generates heat to improve friction pad 5's life. Of course, the support plate 6 may also include a third support plate, or more support plates 6, and at least one support plate 6 is provided at both ends. In other embodiments, the support plate 6 may be replaced with ceramic or other high-hardness material.

Referring to fig. 2 and 3, the receiving cavity 121 is stepped, and in this embodiment, includes a first receiving cavity 1211 closely matched with the rotating shaft 3, a second receiving cavity 1212 closely matched with the bearing 4, and a third receiving cavity 1213 for receiving the first supporting plate 61. The height of the second accommodating cavity 1212 is the same as the width of the bearing 4, so that the bearing 4 is just arranged in the second accommodating cavity 1212, and the side surface of the first supporting surface installed in the third accommodating cavity 1213 can be abutted against the bearing 4, so that the overall structure is more compact, and the miniaturization of the motor is facilitated. In order to make the rotation of the rotor 2 relatively stable, the first supporting sheet 61 and the second supporting sheet 62 are fixed on the stator 1 and the rotor 2, the first supporting sheet 61 is fixed on the third accommodating cavity 1213 by riveting, the rotor 2 is provided with a groove 23 for accommodating the second supporting sheet 62, the second supporting sheet 62 is fixed on the groove 23 by riveting, so that the friction condition is stable, the rotation of the rotor 2 is relatively stable, the service life of the rotor 2 is prolonged, and the service life of the motor is prolonged.

The utility model discloses a prevent that 5 in use of friction pad piece from producing and warping, improve 5's of friction pad piece contact condition and 5's of friction pad piece mechanical strength, through increasing the backing sheet 6 of high strength, it is spacing to carry out friction pad piece 5, make friction pad piece 5 produce relative motion at the stainless steel contact surface, thereby 5 plane degree of friction pad piece has been improved, also improve its wear-resisting life, this kind of stainless steel backing sheet 6's processing and assembly are common mature technology, product assembly and productivity have been taken into account.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and 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.

Claims

1. The utility model provides a microgenerator, includes stator, rotor, pivot, water deflector and bearing, stator and rotor are connected through the pivot, be equipped with the holding on the stator the holding chamber of bearing and pivot, the water deflector is located the rotor upper end is used for stopping the pivot roll-off, be equipped with the friction gasket between bearing and the rotor, its characterized in that still includes the backing sheet, the backing sheet includes first backing sheet and second backing sheet at least, the backing sheet is divided and is put just support tightly on stator and the rotor friction gasket.

2. The micro-generator as claimed in claim 1, wherein the water guide plate is provided with a protrusion contacting with the end surface of the rotating shaft.

3. A miniature generator according to claim 2, wherein said protrusions are of spherical or conical configuration.

4. The microgenerator of claim 1, wherein the accommodating cavity is stepped and comprises a first accommodating cavity tightly matched with the rotating shaft, a second accommodating cavity tightly matched with the bearing and a third accommodating cavity for accommodating a first supporting sheet, the height of the second accommodating cavity is consistent with the width of the bearing, one side surface of the first supporting sheet is abutted against the bearing, and the first supporting sheet is fixed on the third accommodating cavity through riveting.

5. A dynamoelectric machine as recited in claim 1, wherein the rotor defines a recess for receiving a second support plate, the second support plate being secured to the recess by staking.

6. A miniature generator according to claim 1, wherein said stator has a tapered surface, and said water deflector engages said stator along said tapered surface.

7. A microgenerator according to claim 1, wherein the support plate is made of stainless steel.