CN219304570U - Brush DC motor structure with leading-out wire - Google Patents

Abstract

The application relates to a brush direct current motor structure with lead-out wire, include: one end open-ended stator, the stator internal rotation is equipped with the rotor that possesses the commutator, the end cover is installed to stator open-ended one end, be equipped with two lead-outs on the end cover, be equipped with the carbon brush subassembly in the end cover, still be equipped with transition terminal in the end cover, the lead-out wire is located one end in the end cover with transition terminal electricity is connected, the carbon brush subassembly with transition terminal electricity is connected. By adopting the design, the traditional welding mode is replaced through the setting of the lead wire, the stability of connection is improved, the reliability of the motor in use is improved, meanwhile, the transition terminal is arranged in the end cover, the lead wire and the carbon brush assembly are connected through the transition terminal, and the use stability of the device inside the motor is improved.

Description

Brush DC motor structure with leading-out wire

Technical Field

The utility model relates to the technical field of direct current motors, in particular to a brush direct current motor structure with an outgoing line.

Background

The direct current brush motor is commonly used for carrying terminals by the motor, and leads are welded on the terminals when the motor is used by customers. In products such as dust collector floor brushes, the motor is usually placed on the floor brush of motion, and in the in-process of using, if the controller in the floor brush appears the displacement, make the welded lead wire receive the pulling force effect easily, the lead wire of welding on the terminal has stress concentration in the welded part, and the welding point just is the atress point again, and the lead wire breaks easily when receiving the effect of alternating force, influences the use.

Accordingly, there is a need to design a brushed dc motor structure with lead wires to overcome one or more of the above-described deficiencies of the prior art.

Disclosure of Invention

The technical scheme adopted by the utility model for achieving the technical purpose is as follows: a brush direct current motor structure with lead-out wire, characterized by comprising: one end open-ended stator, the stator internal rotation is equipped with the rotor that possesses the commutator, the end cover is installed to stator open-ended one end, be equipped with two lead-outs on the end cover, be equipped with the carbon brush subassembly in the end cover, still be equipped with transition terminal in the end cover, the lead-out wire is located one end in the end cover with transition terminal electricity is connected, the carbon brush subassembly with transition terminal electricity is connected.

In a preferred embodiment, the carbon brush assembly includes: capacitance, inductance, brush arm, carbon brush; one end of the carbon brush is in contact with the rotating shaft of the rotor, one end of the capacitor is electrically connected with the transition terminal, the other end of the capacitor is embedded into the outer side of the end cover, when the end cover is installed in the stator, the capacitor is electrically connected with the stator, one end of the inductor is electrically connected with the transition terminal, the other end of the inductor is electrically connected with the brush arm, and the other end of the brush arm is fixedly connected with one end of the carbon brush, which is far away from the rotor.

In a preferred embodiment, the inductance and the brush arm are offset within the end cap.

In a preferred embodiment, a plurality of heat dissipation blades are arranged on the outer side wall of the commutator at intervals.

The beneficial effects of the utility model are as follows: through the setting of lead-out wire, replace traditional welding mode, promote the steadiness of connection, improve the reliability of motor when using, set up transition terminal in the end cover simultaneously, through transition terminal connection lead wire and carbon brush subassembly, promote the stability in use of the inside device of motor.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

fig. 3 is a schematic structural view of the carbon brush assembly according to the present utility model.

In the figure:

10. a stator; 11. a rotor; 111. a commutator; 112. radiating fan blades; 12. an end cap; 121. a lead-out wire; 122. a transition terminal; 13. a carbon brush assembly; 131. a capacitor; 132. an inductance; 133. a brush arm; 134. a carbon brush.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 3, the present utility model provides a structure of a brush dc motor having a lead-out wire 121, comprising: a stator 10 with an opening at one end, wherein a rotor 11 with a commutator 111 is rotationally arranged at one end of the stator 10, an end cover 12 is arranged at the opening end of the stator 10, two outgoing lines 121 are arranged on the end cover 12, a carbon brush assembly 13 is arranged in the end cover 12, a transition terminal 122 is also arranged in the end cover 12, one end of the outgoing line 121 positioned in the end cover 12 is electrically connected with the transition terminal 122, and the carbon brush assembly 13 is electrically connected with the transition terminal 122; specifically, the stator 10 includes the shell and paste and establish the magnet with the shell inner wall, the rotor 11 includes the pivot cover locates epaxial iron core, around locating the winding on the iron core, commutator 111 joint is in the hole department of iron core, drive commutator 111 rotation when the pivot rotates, the one end of pivot still is equipped with the contact piece that contacts with carbon brush subassembly 13, lead-out wire 121 has two one to be anodal, one is the negative pole, be equipped with the through-hole that is used for supplying lead-out wire 121 to pass on the end cover 12, the one end of lead-out wire 121 is located outside the end cover 12, one end that the lead-out wire 121 is located the end cover 12 is connected with carbon brush subassembly 13 electricity, carbon brush subassembly 13 still is connected with rotor 11 electricity, through the setting of lead-out wire 121, replace traditional welding mode, promote the steadiness of lead, even receive pulling force and alternating force, also can not appear breaking like the welding mode, promote the reliability in use of motor.

Further, in the present embodiment, the carbon brush assembly 13 includes: a capacitor 131, an inductor 132, a brush arm 133 and a carbon brush 134; one end of the carbon brush 134 is in contact with the rotating shaft of the rotor 11, one end of the capacitor 131 is electrically connected with the transition terminal 122, the other end of the capacitor 131 is embedded in the outer side of the end cover 12, when the end cover 12 is installed in the stator 10, the capacitor 131 is electrically connected with the stator 10, one end of the inductor 132 is electrically connected with the transition terminal 122, the other end of the inductor 132 is electrically connected with the brush arm 133, the other end of the brush arm 133 is in contact with the carbon brush 134, specifically, the capacitor 131, the inductor 132 and the brush arm 133 are arranged in pairs, the transition terminal 122 is also arranged in pairs, one ends of the capacitor 131 and the inductor 132 are respectively electrically connected with the corresponding transition terminal 122, the connection mode can be selected by clamping, the installation convenience is improved, the other end of the inductor 132 is clamped with the brush arm 133, one end of the carbon brush 134 is in contact with a contact piece on the rotating shaft of the rotor 11, one end of the brush arm 133, which is far away from the inductor 132, is fixedly connected with one end of the carbon brush 134, which is far away from the rotating shaft, the other end of the capacitor is embedded on the side wall of the capacitor, when the end cover is installed in the stator, the end cover 131 is embedded in the outer side of the stator 12, one end of the capacitor 131 is embedded on the end cover 12, and the outer side of the end cover is electrically connected with the end cover 10, thereby forming a contact path.

Further, in this embodiment, the inductor 132 and the brush arm 133 are disposed in the end cap 12 in a staggered manner, and specifically, in order to avoid interference between the brush arm 133 and the inductor 132 when the brush arm 133 is opened, the inductor 132 and the brush arm 133 are disposed in the end cap 12 in a staggered manner and at a spaced distance.

Further, in this embodiment, the outer side wall of the commutator 111 is provided with a plurality of heat dissipation blades 112 disposed at intervals, specifically, to improve the heat dissipation capability of the motor and prolong the service life of the motor, a plurality of heat dissipation blades 112 facing the windings of the rotor 11 are disposed on the outer side of the commutator 111, when the rotor 11 rotates, the commutator 111 is synchronously driven to rotate, and when the commutator 111 rotates, air in the housing flows through stirring of the heat dissipation blades 112, so as to improve the heat dissipation capability of the motor, wherein the side walls at the front end and the rear end of the housing are respectively provided with an air outlet and an air inlet, so that hot air in the motor flows out conveniently, ambient temperature air flows in and exchanges heat, and a piezoresistor is further disposed at the junction of the commutator 111 and the windings and is connected in parallel with the windings for overvoltage protection.

In summary, the lead wires are arranged to replace the traditional welding mode, so that the stability of connection is improved, the reliability of the motor in use is improved, meanwhile, the transition terminals are arranged in the end covers, the lead wires and the carbon brush assembly are connected through the transition terminals, and the use stability of devices in the motor is improved.

The present utility model is not limited to the details and embodiments described herein, and thus additional advantages and modifications may readily be made by those skilled in the art, without departing from the spirit and scope of the general concepts defined in the claims and the equivalents thereof, and the utility model is not limited to the specific details, representative apparatus and illustrative examples shown and described herein.

Claims (4)

1. A brush direct current motor structure with lead-out wire, characterized by comprising: one end open-ended stator, the stator internal rotation is equipped with the rotor that possesses the commutator, the end cover is installed to stator open-ended one end, be equipped with two lead-outs on the end cover, be equipped with the carbon brush subassembly in the end cover, still be equipped with transition terminal in the end cover, the lead-out wire is located one end in the end cover with transition terminal electricity is connected, the carbon brush subassembly with transition terminal electricity is connected.

2. The structure of a brush-type dc motor having a lead-out wire according to claim 1, wherein the carbon brush assembly comprises: capacitance, inductance, brush arm, carbon brush; one end of the carbon brush is in contact with the rotating shaft of the rotor, one end of the capacitor is electrically connected with the transition terminal, the other end of the capacitor is embedded into the outer side of the end cover, when the end cover is installed in the stator, the capacitor is electrically connected with the stator, one end of the inductor is electrically connected with the transition terminal, the other end of the inductor is electrically connected with the brush arm, and the other end of the brush arm is fixedly connected with one end of the carbon brush, which is far away from the rotor.

3. The structure of claim 2, wherein the inductor and the brush arms are offset within the end cap.

4. The structure of claim 1, wherein a plurality of heat dissipation blades are arranged on the outer side wall of the commutator at intervals.

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