CN210806892U - A miniature brushed DC sweeper motor terminal structure - Google Patents

Abstract

The utility model belongs to the technical field of the quick-witted motor technique of sweeping the floor and specifically relates to indicate a miniature brushed direct current quick-witted motor terminal structure of sweeping the floor, it includes the end cover, the carbon brush, terminal structure includes the plug end, wire winding section and pin end, wire winding section integrated into one piece has initial wire winding lug, line separating lug and wire winding block lug, the wire winding section still is equipped with first wire winding recess and second wire winding recess, line separating lug is located between first wire winding recess and the second wire winding recess, initial wire winding lug sets up in the upper end of wire winding section, wire winding block lug sets up in the lower extreme of wire winding section, line separating lug has the first arc section as the cell wall of first wire winding recess, line separating lug has the second arc section as the cell wall of second wire winding recess. The utility model discloses avoided too big and lead to the fact terminal structure to sink of soldering bit high temperature pressure, further avoided noise, card to die and the function harmfulness scheduling problem, can also realize the wire-wound autosegregation of terminal structure.

Description

A miniature brushed DC sweeper motor terminal structure

technical field

The utility model relates to the technical field of sweeper motors, in particular to a motor terminal structure of a miniature brushed DC sweeper.

Background technique

At present, with the continuous progress of science and technology, micro motors are more and more used in various fields. At the same time, the manufacturing requirements of micro DC motors are correspondingly higher and higher, so as to correspond to all walks of life. Various higher requirements are constantly put forward, such as the home appliance industry, the automobile industry, the toy industry, etc. The carbon brush is a device that transmits energy or signals between the fixed part and the rotating part of the motor. It is generally made of pure carbon and coagulant, and its shape is generally a square, which is stuck on a metal bracket. The carbon brush generally includes a carbon brush body. A wire is drawn from the carbon brush body to connect with the copper sheet. The connection method between the wire and the carbon brush body is usually by melting the wire into the carbon brush body during preparation.

At present, most of the DC sweeper side brush motors currently used in the market have straight terminals. When the temperature of the soldering iron is too high and the pressure of the lead soldering iron is too high, the motor terminals will sag slightly, and the terminals will sag slightly. The brush will scrape the pressure ring of the commutator, and the severely sunken carbon brush cannot touch the commutator, which will cause the motor to fail in the open circuit. In addition, the winding wire of the motor needs to be connected to enameled wire. When winding the terminal structure, the windings are closely attached to each other, which is not conducive to dip welding, and problems such as welding failure and virtual welding are prone to occur. The traditional terminal structure cannot realize the automatic separation of the winding. Manual operation, high labor cost, and poor winding separation effect cannot solve problems such as welding failure and virtual welding.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide a motor terminal structure of a miniature brushed DC sweeper, which can avoid the terminal structure sinking due to the excessive temperature and pressure of the soldering iron tip, and further avoid the problems of noise, jamming and poor function. The automatic separation of the windings of the terminal structure can be realized.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A miniature brushed DC sweeper motor terminal structure, which includes an end cover, a carbon brush mounted on the end cover, and a terminal structure inserted in the carbon brush, the terminal structure including a plug-in end inserted in the carbon brush, and a terminal structure inserted in the carbon brush. The wire winding segment crossed by the plug-in end and the pin end crossed with the wire winding segment, the wire winding segment is integrally formed with an initial wire winding bump, a wire separating bump and a wire winding stop bump, and the wire winding segment is further provided with a third wire. A winding groove and a second winding groove, the wire separating bump is located between the first winding groove and the second winding groove, the initial winding bump is arranged on the upper end of the winding segment, and the winding stops The bump is arranged at the lower end of the wire winding segment, the wire separation bump has a first arc segment as the groove wall of the first wire winding groove, and the wire separation bump has a second arc segment as the groove wall of the second wire winding groove .

Further, the intersection angle between the winding segment and the pin end is 90°.

Further, the plug-in end is riveted and connected with the winding segment.

Further, the carbon brush is provided with a plurality of insertion gaps, the carbon brush is integrally formed with a plurality of limit blocks, and the plurality of limit blocks respectively extend to both sides of the inside of the insertion gap. It is inserted into the insertion gap, a plurality of limit blocks are in contact with the plug-in end, and one end of the limit blocks is provided with an inclined wall.

Further, the pin ends are provided with through holes, and both sides of the pin ends are provided with chamfers.

Further, the motor terminal structure further includes a carbon body mounted on the carbon brush.

The beneficial effects of the present utility model:

1. One end of the winding segment of the present utility model is arranged crosswise with one end of the pin end. At this time, the end face of the carbon brush is relatively parallel to the pin end. When soldering the pin end, the soldering iron tip does not need to be too close to the plug end. It is more flexible, avoids the soldering iron tip temperature is too high and the pressure is too high, which causes the plug end to sink, and further avoids problems such as noise, stuck and poor function;

2. When wiring the winding wire of the motor, the winding wire is first wound on the initial winding bump to fix one end of the winding wire. During the winding process, the enameled wire automatically slides from the first arc segment to the first winding groove. , the enameled wire automatically slides from the second arc segment to the second winding groove, so as to realize the automatic separation of the wound enameled wire, reduce labor costs, the winding separation effect is good, and effectively solve the problems of welding failure and virtual welding.

Description of drawings

Figure 1 is a schematic diagram of the exploded structure of the utility model.

FIG. 2 is a schematic structural diagram of the terminal structure of the present invention.

3 is a schematic structural diagram of an end cap and a pin end of the present invention.

Description of reference numbers:

1-carbon brush; 11-plug notch; 12-limit block; 13-slope; 2-end cover; 3-terminal structure; 31-plug end; 32-winding segment; 321-initial winding bump 322-winding stop bump; 323-first winding groove; 324-second winding groove; 325-line separation bump; 326-first arc segment; 327-second arc segment;33 - Pin end; 331 - Through hole; 332 - Chamfer; 4 - Carbide body.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the embodiments and the accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

As shown in FIGS. 1 to 3 , the utility model provides a motor terminal structure of a miniature brushed DC sweeper, which includes an end cover 2 , a carbon brush 1 mounted on the end cover 2 and a terminal inserted into the carbon brush 1 Structure 3, the terminal structure 3 includes a plug-in end 31 inserted into the carbon brush 1, a winding segment 32 arranged across the insertion and extraction end 31, and a pin end 33 arranged across the winding segment 32. The winding segment 32 An initial winding bump 321, a wire separation bump 325, and a winding stop bump 322 are integrally formed. The wire winding segment 32 is also provided with a first winding groove 323 and a second winding groove 324. The wire separation bump 325 is located between the first winding groove 323 and the second winding groove 324, the initial winding bump 321 is arranged at the upper end of the winding segment 32, and the winding stop bump 322 is arranged at the lower end of the winding segment 32, The wire bump 325 has a first arc segment 326 as the groove wall of the first wire winding groove 323 , and the wire separation bump 325 has a second arc segment 327 as the groove wall of the second wire winding groove 324 .

In practical application, in order to solve the problem that the terminal structure 3 sags during the welding of the motor of the sweeper, one end of the winding section 32 and one end of the pin end 33 are arranged to cross, and at this time, the end face of the carbon brush 1 is relatively parallel to the pin end 33. When soldering the pin end 33, the soldering iron tip does not need to be too close to the plug-in end 31, the operation is more flexible, and the temperature of the soldering iron tip is too high and the pressure is too high, which will cause the plug-in end 31 to sink, and further avoid noise, stuck and malfunction. Problem: When connecting the enameled wire to the winding wire of the motor, the winding is first wound on the initial winding bump 321 to fix one end of the winding. During the winding process, the enameled wire automatically slides from the first arc segment 326 to the first winding. In the groove 323, the enameled wire automatically slides from the second arc segment 327 to the second winding groove 324, thereby realizing the automatic separation of the wound enameled wire, reducing labor costs, and the effect of winding separation is good, effectively solving welding failure, virtual Welding, etc.

In this embodiment, the intersection angle between the winding segment 32 and the pin end 33 is 90°. At this time, the end face of the carbon brush 1 is relatively parallel to the pin end 33. When soldering the pin end 33, the soldering iron tip is not required. Too close to the plug-in end 31 can prevent the soldering iron tip from being overheated and the pressure is too high, which will cause the plug-in end 31 to sink, and further avoid problems such as noise, jamming and poor function.

In this embodiment, the plug-in end 31 is connected with the winding segment 32 by riveting.

In this embodiment, the carbon brush 1 is provided with a plurality of insertion notches 11 , the carbon brush 1 is integrally formed with a plurality of limit blocks 12 , and the plurality of limit blocks 12 respectively extend to the inside of the insertion notches 11 . On both sides, the plug-in end 31 is inserted into the plug-in notch 11 , a plurality of limit blocks 12 abut with the plug-in end 31 , and one end of the limit block 12 is provided with an inclined wall 13 . The inclined wall 13 is used to expand the open end of the plug-in notch 11, so that the plug-in end 31 can be inserted into the plug-in notch 11, and the assembly operation is simple; the plurality of limit blocks 12 limit and fix the plug-in end 31 in the plug-in notch at the same time. 11, so that the plug end 31 is firmly connected with the carbon brush 1, and the stability is improved.

In this embodiment, the pin end 33 is provided with a through hole 331 , and both sides of the pin end 33 are provided with chamfers 332 . The through hole 331 can not only play a role of normal power-on, but also make the terminal structure easier to pull out, avoid the danger of electric leakage and electric shock, and improve the safety of electricity use.

In this embodiment, the motor terminal structure further includes a carbon body 4 mounted on the carbon brush 1 .

All the technical features in this embodiment can be freely combined according to actual needs.

The above-mentioned embodiments are the preferred implementation solutions of the present invention. In addition, the present invention can also be realized in other ways. Any obvious replacements are within the protection scope of the present invention without departing from the concept of the technical solution. Inside.

Claims (6)

1. The utility model provides a miniature brush direct current quick-witted motor terminal structure of sweeping floor, includes the end cover and installs in the carbon brush of end cover, its characterized in that: the terminal structure comprises a plug end inserted in the carbon brush, a winding section arranged with the plug end in a crossed mode and a pin end arranged with the winding section in a crossed mode, wherein the winding section is integrally formed with an initial winding lug, a spacing lug and a winding stopping lug, the winding section is further provided with a first winding groove and a second winding groove, the spacing lug is located between the first winding groove and the second winding groove, the initial winding lug is arranged at the upper end of the winding section, the winding stopping lug is arranged at the lower end of the winding section, the spacing lug is provided with a first arc section serving as the groove wall of the first winding groove, and the spacing lug is provided with a second arc section serving as the groove wall of the second winding groove.

2. The motor terminal structure of the micro brushed direct current sweeper according to claim 1, characterized in that: the crossing angle of the winding segment and the pin end is 90 degrees.

3. The motor terminal structure of the micro brushed direct current sweeper according to claim 1, characterized in that: the plug end is connected with the winding section in a riveting and pressing mode.

4. The motor terminal structure of the micro brushed direct current sweeper according to claim 1, characterized in that: the carbon brush is equipped with a plurality of grafting breachs, carbon brush integrated into one piece has a plurality of stoppers, and is a plurality of the stopper extends to the inside both sides of grafting breach respectively, the plug end is inserted and is located the grafting breach, a plurality of stoppers and plug end butt, the one end of stopper is equipped with the skew wall.

5. The motor terminal structure of the micro brushed direct current sweeper according to claim 1, characterized in that: the pin end is provided with a through hole, and chamfers are arranged on two sides of the pin end.

6. The motor terminal structure of the micro brushed direct current sweeper according to claim 1, characterized in that: the motor terminal structure further comprises a carbon body mounted on the carbon brush.

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