CN213460111U - Enameled wire and conductor connector for micro special motor - Google Patents

Abstract

The utility model provides a connector of enameled wire and wire for micro special motor, which comprises two cylindrical structures with axial through holes; the axial through hole axes of the two cylindrical structures are parallel to each other, and the two cylindrical structures have a partial overlapping area in the axial direction; the axial through hole of the first cylindrical structure is matched with the enameled wire, so that the enameled wire can be electrically connected with the connector in a brazing mode, and the axial through hole of the second cylindrical structure is matched with the end of the multi-core wire subjected to head stripping treatment, so that the multi-core wire can be electrically connected with the connector in a crimping mode. The connector can avoid the tin climbing problem of the multi-core wire when the enameled wire is welded, and can also enable the shape of the connection node of the enameled wire and the multi-core wire to be regular and compact in structure, so that insulation and binding treatment can be carried out on the narrow end part of the motor winding.

Description

Enameled wire and conductor connector for micro special motor

Technical Field

The utility model belongs to the technical field of the wire connection of motor technical field specifically is a little special enameled wire and conductor connector for motor.

Background

In the motor industry today, for motor structures with terminal boxes, the winding enamel wires are usually directly connected to the terminal pads on the terminal boxes, so that the user can access the power source on the terminal boxes. However, for a motor wiring structure without a junction box or with a motor wiring structure in which the junction box cannot be directly connected with an enameled wire, the winding enameled wire end is usually required to be subjected to depainting, then wound and twisted with a multi-core wire core, and then soldered. Because the internal core of the multi-core wire has a capillary phenomenon during soldering, when the core is soldered, the molten soldering tin can permeate into the wire along the multi-strand wire core after the core meets the soldering tin, and the phenomenon of tin climbing is commonly known. This tin-climbing phenomenon results in a severe decrease in the flexibility of the end of the multicore wire. For a narrow space in the micro special motor, the shaping and binding of the end part of the motor winding are difficult due to the conducting wire with reduced flexibility. Meanwhile, the method of brazing the enameled wire and the multi-core wire after winding and twisting mainly depends on manual operation of an operator at present, so that the connection quality of the motor wire is different according to different methods of the operator. In addition, the twisted part will form a knot with the shape and size not precisely controlled. For a narrow space of a winding end part of a micro special motor with compact structure requirement, the node lump seriously influences the shaping of the winding end part of the motor and the insulation reliability of the end part.

Disclosure of Invention

Technical problem to be solved

It can be seen from the above analysis of the background art that there are mainly 3 technical problems when the multi-core wire is connected with the enameled wire at present:

firstly, the tin-climbing phenomenon when the multi-core wire and the enameled wire are connected and welded causes the end of the multi-core wire to be hard, which is not beneficial to the binding and shaping of the winding end;

secondly, a winding node with the shape and the size which cannot be accurately controlled is formed at the connection and winding position, and the shaping of the end part of the motor winding and the insulation reliability of the end part can be influenced in a narrow space;

thirdly, manual operation is adopted for connecting, winding, twisting and brazing, and quality difference exists.

Technical scheme

To the technical problem, the utility model provides a little special enameled wire and conductor jointer for motor.

The enameled wire and wire connector for the micro special motor is composed of two cylindrical structures with axial through holes; the axial through hole axes of the two cylindrical structures are parallel to each other, and the two cylindrical structures have a partial overlapping area in the axial direction; the axial through hole of the first cylindrical structure is matched with the enameled wire, so that the enameled wire can be electrically connected with the connector in a brazing mode, the axial through hole of the second cylindrical structure is matched with the end of the multi-core wire subjected to head stripping treatment, a crimping deformation area is arranged in an area, which is not overlapped with the first cylindrical structure, of the second cylindrical structure, and the multi-core wire can be electrically connected with the connector in a crimping mode; and the axial length of the crimping deformation area is the minimum value meeting the requirement condition of crimping operation.

Furthermore, in the first cylindrical structure, a pressure-bonding deformation region is provided in a region not overlapping with the second cylindrical structure, and the enameled wire and the connector can be electrically connected by a pressure-bonding method.

Further, the two cylindrical structures are both cylindrical structures.

Furthermore, the diameter of the outer wall of one cylindrical structure is D, the diameter of the through hole is D, the diameter of the outer wall of the other cylindrical structure is R, and the diameter of the through hole is R; the distance between the through hole axes of the two cylindrical structures is y, and the two conditions of y > (R/2+ D/2) and y > (R/2+ D/2) are simultaneously met.

Further, after the connector is connected with the enameled wire and the multi-core wire, the outside of the connector is subjected to insulation wrapping treatment by adopting a heat shrink tube.

Advantageous effects

The connector can avoid the tin climbing problem of the multi-core wire during the welding of the enameled wire, and can also ensure that the shape of the connection node of the enameled wire and the multi-core wire is regular and the structure is compact, so that the insulation and binding treatment can be carried out on the narrow end part of the motor winding. Utilize the utility model discloses, can realize that the enameled wire is connected with multicore wire's homonymy (like fig. 5) or the offside is connected (like fig. 6) according to the actual vacant spatial structure of motor winding tip and tip plastic ligature needs. Utilize the utility model discloses can realize that the mechanized crimping of multicore wire is handled, reduce the manual welding work volume when enameled wire is connected with the multicore wire to improve work efficiency and quality. Utilize the utility model discloses the use of scaling powder when can also avoiding welding to avoid the corruption of scaling powder to the wire, improved the long-term operating mass and the reliability of tie point. The utility model discloses a through-hole structure of two cylinder sections of thick bamboo can also make enameled wire or multicore wire run through whole cylinder hole, makes its end leak so that inspection connection effect and reliability outward.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1: the utility model is a full-looking picture; in the figure: 1 is a large cylindrical tube, 2 is a small cylindrical tube, and 3 is a connecting part;

FIG. 2: the front view of the utility model; in the figure: y is the distance between the axes of the two large and small cylindrical barrels;

FIG. 3: the utility model discloses a main cross-sectional view. In the figure: d is the diameter of the through hole of the large cylinder, D is the diameter of the outer wall of the large cylinder, R is the diameter of the through hole of the small cylinder, and R is the diameter of the outer wall of the small cylinder;

FIG. 4: the utility model discloses an implementation picture is used to the offside. In the figure: 4 is an enameled wire end, 5 is a multi-core wire end, 6 is a compression joint extrusion deformation area, 7 is a soldering tin climbing part during soldering, and 8 is the compact connector of the enameled wire and the wire for the micro special motor;

FIG. 5: the utility model discloses a use the overview picture with the homonymy. In the figure: 9 is an enameled wire, and is arranged on the left side of 11; 10 is a multi-core wire, and is also positioned on the left side of the 11 (the 11 is taken as a reference object, and the same side position relation with the 9 is realized); 11 is the utility model discloses a little special enameled wire and wire compact connector for motor.

FIG. 6: the utility model discloses the offside uses the general view picture. In the figure: 12 is an enameled wire, on the left side of 14; 13 is a multi-core wire, on the right side of 14 (with 14 as a reference, and 12 as an opposite side position relation); 14 is the compact connector of enameled wire and wire for micro special motor of the utility model.

Detailed Description

The following detailed description of embodiments of the invention is intended to be illustrative, and not to be construed as limiting the invention.

The utility model aims at:

1. the method solves the tin-climbing phenomenon when the multi-core wire and the enameled wire are connected and welded at present, and avoids the problem that the end of the multi-core wire is hard to be beneficial to binding and shaping the end part of the winding;

2. the appearance of the connecting node is controlled, and the small, compact and uniform connecting node with a clear and uniform structure is formed, so that the end part of the motor winding is buried, fixed and insulated;

3. the mechanical crimping operation is convenient to realize when the multi-core wire is connected with the enameled wire, and the quality fluctuation caused by manual welding of the multi-core wire is avoided.

The overall view of the utility model is shown in fig. 1, and the front view is shown in fig. 2. A front sectional view perpendicular to the front view direction is shown in fig. 3. As shown in figure 2, the utility model is composed of a big cylinder and a small cylinder in parallel according to the parallel direction of the axes of the two cylinders, and the distance between the axes of the big cylinder and the small cylinder is y. As shown in FIG. 3, the diameter of the through hole of the large cylinder is D, and the diameter of the outer wall of the large cylinder is D. The diameter of the through hole of the small cylinder is R, and the diameter of the outer wall of the small cylinder is R.

As shown in fig. 3, the two large and small cylinders are both in a through hole structure, so as to ensure that the surface treatment quality of the utility model can be easily realized during manufacturing. Simultaneously, this kind of through-hole structure can satisfy the use the utility model discloses the degree of depth of insertion of time inspection wire or enameled wire ensures its operational reliability, can also satisfy the different use needs of drawing forth the direction of wire.

As shown in fig. 3, two cylinders only have a partial overlapping area, so that the ends of the two cylinders are staggered by a certain distance, and the phenomenon that soldering tin cannot climb into an inner hole of a large cylinder and a multi-core wire when an enameled wire is welded in a small cylinder can be prevented. Simultaneously, sufficient operating space occasionally can also be guaranteed to this kind of structure of staggering each other to big cylinder crimping wire, and can also make the utility model discloses axial distance is compact, makes the line node littleer than manual winding transposition welded joint. As shown in fig. 1, the two cylinders are integrally connected together at a position where their axes are projected to coincide, and this connection position is sufficient to withstand the current that the connector needs to carry.

In order to reliably ensure the integrity of the outer walls of the two cylindrical cylinders during production and manufacture, the structure in FIG. 3 needs to satisfy two conditions of y > (R/2+ D/2) and y > (R/2+ D/2) simultaneously. Satisfying these two conditions is not only beneficial to avoiding tin-climbing phenomenon, but also enables the processing and manufacturing quality to become easy to control.

Next, the enameled wire and the multi-core wire are connected by using the connector of the present invention on the opposite side (as shown in fig. 4). Follow after the depainting in the end of enameled wire 4 the utility model discloses an in the connector small circle cylinder left side inserted the through-hole, can observe the enameled wire end reliably to have run through small circle cylinder hole. Then, the two ends of the inner hole of the small cylinder can be welded by a manual brazing method to realize the plug-in connection. At this time, the residual solder material can climb to the two ends of the small cylinder. Since the multicore wire 5 is not inserted yet, there is no risk of tin climbing to the end of the multicore wire in the soldering process. Because the two ends of the large and small cylindrical barrels are staggered mutually, residual soldering tin cannot climb into the inner hole of the large cylindrical barrel, and the inner hole of the large cylindrical barrel cannot be blocked.

After the enameled wire is welded, the 5 ends of the multicore wire are stripped and the head is processed, the utility model discloses a big cylindrical shell right side of connector is inserted in the through-hole, can observe the reliable big cylindrical shell hole that has run through of multicore wire tip. And then, the conductor is pressed in a crimping deformation area (6) in a crimping mode, so that the connection of the multi-core conductor and the opposite side of the enameled wire in use is realized, and the overall appearance of the connection is shown in fig. 6.

The same connection between the multi-core wire and the enameled wire can be realized by the same side as shown in fig. 5. Therefore, the same-side or opposite-side connection can well meet the requirement of narrow winding end space in the micro special motor on reliable compact connection.

Of course, the utility model discloses an enameled wire mounting hole also possesses the condition that adopts the crimping mode to connect, and this helps reducing manual welding, helps the mechanization of assembling process to improve work efficiency. Because utilize the utility model discloses a connector can make multicore wire and enameled wire connected node size clear and definite and unanimous (the connected node size is the connector size promptly), consequently, is convenient for also wholly use unified size's pyrocondensation pipe (not drawing in this description drawing) to carry out insulating parcel processing to improve operating mass with rated load.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (5)

1. The utility model provides a little special enameled wire and wire connector for motor which characterized in that: the device consists of two cylindrical structures with axial through holes; the axial through hole axes of the two cylindrical structures are parallel to each other, and the two cylindrical structures have a partial overlapping area in the axial direction; the axial through hole of the first cylindrical structure is matched with the enameled wire, so that the enameled wire can be electrically connected with the connector in a brazing mode, the axial through hole of the second cylindrical structure is matched with the end of the multi-core wire subjected to head stripping treatment, a crimping deformation area is arranged in an area, which is not overlapped with the first cylindrical structure, of the second cylindrical structure, and the multi-core wire can be electrically connected with the connector in a crimping mode; and the axial length of the crimping deformation area is the minimum value meeting the requirement condition of crimping operation.

2. The enameled wire and wire connector for a micro special motor according to claim 1, characterized in that: in the first cylindrical structure, a crimping deformation region is provided also in a region not overlapping with the second cylindrical structure, and the enameled wire and the connector can be electrically connected by a crimping method.

3. The enameled wire and wire connector for the micro special motor according to claim 1 or 2, characterized in that: and the two cylindrical structures are cylindrical structures.

4. The enameled wire and wire connector for a micro special motor according to claim 3, characterized in that: the diameter of the outer wall of one cylindrical structure is D, the diameter of the through hole is D, the diameter of the outer wall of the other cylindrical structure is R, and the diameter of the through hole is R; the distance between the through hole axes of the two cylindrical structures is y, and the two conditions of y > (R/2+ D/2) and y > (R/2+ D/2) are simultaneously met.

5. The enameled wire and wire connector for a micro special motor according to claim 3, characterized in that: and after the connector is connected with the enameled wire and the multi-core wire, the outside is subjected to insulation wrapping treatment by adopting a heat shrink tube.

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