CN109921534A - Electric device - Google Patents

Abstract

A kind of electric device, including integrated form end cap, the integrated form end cap include end cap ontology and with the integrally formed two groups of inductance fixing clamps of end cap ontology, a capacitor fixing clamp, a terminal clamp, four groups of spill guide rails, and two grooves, it further include four brushes, four pressure springs, first capacitor, the second capacitor, the first inductance, the second inductance and a ground strip；Four brushes are separately mounted on four groups of spill guide rails, and four pressure springs are separately positioned on the rear end of the brush in four groups of spill guide rails；First capacitor is mounted on capacitor fixing clamp, and the first inductance and the second inductance are separately mounted on two groups of inductance fixing clamps, and a ground strip is installed therein in a groove.The present invention has the advantages that material saving, province's part, light-weight, manufacturing procedure is few, dimensional accuracy is higher, saves space and axial distance, high reliablity, service life length.

Description

Electric device

Technical field

The present invention relates to a kind of electric devices.

Background technique

The similar products of the prior art have defect below:

A, materials are more, part is more: in addition to end cap (made of metal), more brush basin (plastics system), 4 brush carriers (copper), 2 Connection sheet (copper), its matched motor need 3 gussets (steel).

B, manufacturing procedure is more: other than each part has multi-step process, also to increase installation and the multiple brush carriers of positioning, Connection sheet increases gusset butt-joint process.

C, connection sheet thermal diffusivity is not good enough；Most brush basin structure, connection sheet are embedded in brush basin base plate interior, are unfavorable for dissipating Heat.

D, cumulative limit is big: the product of multiple and different material compositions, it is difficult to guarantee the concentricity for having very little, cooperate not smart It is quasi-.

E, function is simple: each part assumes responsibility for more single function.

F, brush is in brush carrier (material is copper), disadvantage:

(a) with copper is more, price, brush heat dissipation is not good enough, after motor longevity of service, and in moist environment Under, it is possible to brush being blocked by carbon dust in brush carrier.

(b) axial distance of motor has accounted for certain axial distance by brush carrier thickness and due gap.

Summary of the invention

The purpose of the present invention is exactly to solve the above-mentioned problems, to provide a kind of novel electric device.

In order to achieve the above object, the invention adopts the following technical scheme: a kind of electric device, including integrated form end Lid, the integrated form end cap include end cap ontology and consolidate with the integrally formed two groups of inductance fixing clamps of end cap ontology, a capacitor Clamp, a terminal clamp, four groups of spill guide rails and two grooves are equipped with cylindrical hole in the centre of end cap ontology；It further include four A brush, four pressure springs, first capacitor, the second capacitor, the first inductance, the second inductance and a ground strip；Four brush difference Being mounted on four groups of spill guide rails can slide along spill guide rail, and four pressure springs are separately positioned on the brush in four groups of spill guide rails Rear end；First capacitor is mounted on capacitor fixing clamp, and the first inductance and the second inductance are separately mounted on two groups of inductance fixing clamps, One ground strip is installed therein in a groove；One end phase of the lead of the brush of two of them identical polar and the first inductance Connection, the lead of the brush of another two identical polar are connected with one end of the second inductance；The other end and power supply of first inductance Negative outside wire be connected, the other end of the second inductance is connected with the positive outside wire of power supply, the both ends of first capacitor respectively with The lead-out wire of power supply positive and negative electrode is connected；One end of second capacitor is connected with the positive outside wire of power supply, and the other end passes through another Groove ground connection；One end of ground strip is connected with the negative outside wire of power supply, other end ground connection.

Hole post there are three being set on the integrated form end cap, for being fixed the electric device with mounting bracket by screw Together.

Arc spring room is equipped in the spill guide rail, the outer end of spill guide rail is equipped with marmon clamp, and marmon clamp is led with spill Open slot is formed between rail ontology；The pressure spring includes the lesser working portion of diameter and the fixing end that is relatively large in diameter, work department Set up separately and set in the arc spring room, fixing end is arranged in open slot and is pressed on marmon clamp.

The brush and inductance, capacitor, ground strip, power supply lead-out wire between connection connected by butt-joint, or adopt It is connected with cold-pressed joint method.

It further include line lid, which is respectively arranged on the left side and the right side hole ear, and centre is equipped with more than half circular hole；The terminal clamp two sides It is respectively equipped with lug, centre is equipped with more than half cylinder；The line lid covers when on terminal clamp, and the lug of terminal clamp two sides is inserted into respectively In hole ear at left and right sides of line lid, in more than half circular hole of more than half cylinder insertion line lid of terminal clamp.

Compared with prior art, the invention has the following advantages that

(1) material saving, save part, light-weight:

Traditional metal end and brush basin are integrated, therefore eliminate brush basin material；

Since integrated (rear) end cap uses the preferable plastic material of rigidity, center has a cylindrical hole can be with motor Axis (static) be fixed together, axis is connected with bearing inner race, and by bearing outer ring drive armature operating, thus before eliminating End cap；

Three hole posts on this electric device periphery are fixed together by screw (preferably high and low tooth) with mounting bracket, Three gussets and three nuts, three screws of conventional motors can be saved；

Supporting the material of the spill guide rail of brush is the own material of integrated end cap, thus eliminates the brush carrier of traditional structure Material (copper)；

Cathode is directly grounded, and saves a capacitor than traditional π shape filter circuit, and filter effect is suitable；

The direct butt-joint of lead-out wire of brush and inductance, capacitor, ground strip, power supply connects together, and eliminates connection sheet.

(2) manufacturing procedure is few, dimensional accuracy is higher, saves space and axial distance:

Not install brush basin, brush carrier, connection sheet, inductance folder, drive end bearing bracket, thus have manufacturing procedure is few, cumulative limit is small, Dimensional accuracy is easier to the advantages of guaranteeing, while also saving space and axial distance, makes the motor being assembled into than general motor Volume is smaller, more flat.

(3) high reliablity, service life are long:

Electric device of the invention eliminates brush basin, drive end bearing bracket, brush carrier etc., is conducive to the heat dissipation inside brush and motor； The upper surface of brush dew is naked, there are enough gaps between the bottom surface and end cap of brush, can avoid brush in brush carrier by carbon dust The possibility blocked；Brush front end is in contact with commutator, and its rear end is by the elastic force from pressure spring, two groove at side surface of brush It can make to slide relatively in the plane of spill guide rail, brush and guide rail are axially contact good, it can be ensured that the reliable and stable work of brush Make；Brush has ready conditions appropriate increase length to further increase the service life and increase power；Thus product reliability is high, service life It is long.

(4) pressure spring diameter of traditional structure is equally big, and to prevent pressure spring from deviating from brush carrier, plastics brush carrier in this way need to increase thrust Plate not only increases process, and affects the use length of brush；Copper brush carrier in this way, Yao Zengjia brush carrier close after installing pressure spring Door processes such as (material) bending, when the process operations not at that time, it is possible to deform brush carrier, thus also need to increase detection process.

And pressure spring of the invention, it is made of major diameter fixed part and path working portion two parts, participates in working portion Pressure spring is located in the arc groove under guide rail, and fixed part is located in the open slot of guide rail, and pressure spring is prevented to be detached from arc groove, due to pressure Spring contact is reliable, thus its stabilization forces in brush.It is not only low in cost, it is simple for structure, and process is few, high reliablity.

(5) left and right of gland is equipped with hole ear, and the partially softer plastics of use are conducive to strut lug, thus easily cover into On the boss of integrated end cap, it is equipped with a more than half circular hole among it, is for the ease of being accurately positioned with more than half cylinder of end cap.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of integrated motor end cap；

Fig. 2 is the structural schematic diagram of electric device of the present invention；

Fig. 3 is the structural schematic diagram of the line lid in the present invention；

Fig. 4 is the structural schematic diagram of the pressure spring in the present invention.

Specific embodiment

Referring to Fig. 1, Fig. 2, cooperate referring to Fig. 3, Fig. 4, electric device of the invention includes integrated form end cap, the integrated form end Lid includes end cap ontology 1 and goes out with the end cap ontology capacitor fixing clamp 3, one of integrally formed two groups of inductance fixing clamps 2, one 4, four groups of spill guide rails 5 of wire clamp and two grooves 6 are equipped with cylindrical hole 7 in the centre of end cap ontology；In the week of end cap ontology To setting there are three hole post 8, spring 9 is embedded in fixed column.

Referring to fig. 2, electric device of the invention further includes four brushes, 10, four pressure springs 11, first capacitor 12, for cooperation Two capacitors 13, the first inductance 14, the second inductance 15 and a ground strip 16；Four brushes 10 are separately mounted to four groups of spill guide rails It can be slided along spill guide rail on 5, four pressure springs 11 are separately positioned on the rear end of the brush in four groups of spill guide rails；First capacitor 12 It is mounted on capacitor fixing clamp 3, the first inductance 14 and the second inductance 15 are separately mounted on two groups of inductance fixing clamps 2, and one connects Ground piece 16 is installed therein in a groove 6；One end phase of the lead 17 of the brush of two of them identical polar and the first inductance Connection, the lead 18 of the brush of another two identical polar are connected with one end of the second inductance；The other end and electricity of first inductance The negative outside wire 19 in source is connected, and the other end of the second inductance is connected with the positive outside wire 20 of power supply, and the two of first capacitor 12 End is connected with the lead-out wire of power supply positive and negative electrode respectively；One end of second capacitor 13 is connected with the positive outside wire of power supply, the other end It is grounded by another groove；One end of ground strip 16 is connected with the negative outside wire of power supply, other end ground connection.

Electric device and mounting bracket for being fixed together by three hole posts 8 by screw.

Arc spring room 51 is equipped in spill guide rail 5, the outer end of spill guide rail is equipped with marmon clamp 52, marmon clamp and spill Open slot 53 is formed between guide rail body；Cooperation referring to fig. 4, pressure spring 11 include the lesser working portion 111 of diameter and diameter compared with Big fixing end 112, working portion are arranged in the arc spring room 51, and fixing end is arranged in open slot 53 and is pressed on On marmon clamp 52.

Brush and inductance, capacitor, ground strip in the present invention, the connection between the lead-out wire of power supply are connected by butt-joint It connects, or is connected using cold-pressed joint method.

Cooperation is referring to Fig. 3, and the invention also includes line lid 21, which is respectively arranged on the left side and the right side hole ear 211, and centre is set There is more than half circular hole 212；It is respectively equipped with lug 41 in the two sides of terminal clamp 4, centre is equipped with more than half cylinder 42；It covers online in outlet When on folder, the lug of terminal clamp two sides is inserted into respectively in the hole ear at left and right sides of line lid, and more than half cylinder of terminal clamp is inserted into line lid More than half circular hole in.

Claims (2)

1. a kind of electric device, including integrated form end cap, the integrated form end cap include end cap ontology and with end cap ontology one Molding two groups of inductance fixing clamps, a capacitor fixing clamp, a terminal clamp, four groups of spill guide rails and two grooves, are holding The centre of lid ontology is equipped with cylindrical hole；It is characterized by also including four brushes, four pressure springs, first capacitor, the second capacitor, First inductance, the second inductance and a ground strip；Four brushes are separately mounted on four groups of spill guide rails can be sliding along spill guide rail Dynamic, four pressure springs are separately positioned on the rear end of the brush in four groups of spill guide rails；First capacitor is mounted on capacitor fixing clamp, the One inductance and the second inductance are separately mounted on two groups of inductance fixing clamps, and a ground strip is installed therein in a groove；Its In two identical polars brush lead-out wire and the first inductance one end by butt-joint connect or use cold-pressed joint method connect It connects, one end of the lead-out wire of the brush of another two identical polar and the second inductance connects or uses cold-pressed joint method by butt-joint Connection, the other end of the first inductance and the negative outside wire of power supply connect or use the connection of cold-pressed joint method by butt-joint, the The other end of two inductance and the positive outside wire of power supply connect or use the connection of cold-pressed joint method by butt-joint；First capacitor Both ends connect or use cold-pressed joint method by butt-joint with the lead-out wire of power supply positive and negative electrode respectively and connect, and the one of the second capacitor End connects or uses cold-pressed joint method by butt-joint with the positive outside wire of power supply and connect, and the other end is connect by another groove Ground；One end of ground strip and the negative outside wire of power supply connect or use the connection of cold-pressed joint method, another termination by butt-joint Ground；

It is set on the integrated form end cap there are three hole post, for the electric device and mounting bracket to be fixed on one by screw It rises；

Arc spring room is equipped in the spill guide rail, the outer end of spill guide rail is equipped with marmon clamp, marmon clamp and spill guide rail sheet Open slot is formed between body；The pressure spring includes the lesser working portion of diameter and the fixing end that is relatively large in diameter, and work department sets up separately It sets in the arc spring room, fixing end is arranged in open slot and is pressed on marmon clamp.

2. electric device as described in claim 1, it is characterised in that: further include line lid, which is respectively arranged on the left side and the right side Hole ear, centre are equipped with more than half circular hole；The terminal clamp two sides are respectively equipped with lug, and centre is equipped with more than half cylinder；The line lid lid When on terminal clamp, the lug of terminal clamp two sides is inserted into respectively in the hole ear at left and right sides of line lid, and more than half cylinder of terminal clamp is inserted Enter in more than half circular hole of line lid.