CN113782298A

CN113782298A - Axial outlet reluctance type rotary transformer

Info

Publication number: CN113782298A
Application number: CN202111121791.XA
Authority: CN
Inventors: 霍海宽; 陈建江; 谢孟纷; 张晓明; 孙东海
Original assignee: Shanghai Win Double Electric Co ltd
Current assignee: Shanghai Win Double Electric Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2021-12-10

Abstract

The invention provides an axial outgoing line reluctance type rotary transformer, which comprises a rotary transformer body and outgoing lines, wherein the rotary transformer body comprises a stator core and a winding; the rotary transformer comprises a rotary transformer body, wherein a wiring assembly is arranged on the rotary transformer body, the wiring assembly is flat, and the wiring assembly comprises a wiring terminal and a wiring lug; the winding comprises a winding outgoing line, the winding outgoing line is connected to the wiring terminal, the outgoing line is connected to the wiring chip, and the outgoing direction of the outgoing line is opposite to the direction in which the wiring terminal extends out of the rotary transformer body. Through with lead-out wire fixed connection to on the lug to make the extending direction of terminal opposite with the outlet direction of lead-out wire, enlarged the operation space with lead-out wire fixed connection to on the lug, can choose for use resistance welding's mode to weld, improved the quality of being connected of lead-out wire and lug, on the other hand has reduced the height of installation department, compact structure, and is small, has improved the convenience of resolver assembly.

Description

Axial outlet reluctance type rotary transformer

Technical Field

The invention relates to the technical field of structural design of rotary transformers, in particular to an axial outgoing line reluctance type rotary transformer.

Background

The rotary transformer is a sensor based on electromagnetic induction principle, and outputs an electric signal which changes according to a certain rule to measure the angular displacement and angular velocity of a rotating shaft of a rotating object. The reluctance type rotary transformer is a rotary transformer with a new principle, an excitation winding and an output winding are both placed on a stator, and the regularity of an output signal is realized by utilizing the change of the shape of a rotor to cause the change of an air gap magnetic field along with a corner. The outlet mode of the reluctance type rotary transformer generally comprises an axial outlet mode and a radial outlet mode.

As shown in fig. 1 and 2, the winding comprises a binding post and a lug plate, wherein a winding outlet is wound on the binding post and welded by argon arc welding. In a conventional axial wire outlet structure, the wire outlet direction of an outgoing wire is in the same direction as that of a binding post, the size of a lug of a conductor for wiring in the radial direction is higher than that of the binding post, the size in the axial direction is short, the welding of the outgoing wire and the lug is limited by the structural size, automatic welding cannot be performed by adopting a resistance welding method, and therefore, only normal soldering operation can be adopted.

The inventor believes that the structure of the axial outlet type rotary transformer in the prior art has influence on the welding of the outlet wire and the lug during assembly, which causes inconvenience in operation and has difficulty in ensuring the welding quality.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an axial outgoing line reluctance type rotary transformer.

The axial outgoing line reluctance type rotary transformer comprises a rotary transformer body and outgoing lines, wherein the rotary transformer body comprises a stator core and windings; the rotary transformer comprises a rotary transformer body, wherein a wiring assembly is arranged on the rotary transformer body, the wiring assembly is flat, and the wiring assembly comprises a wiring terminal and a wiring lug; the winding comprises a winding outgoing line, the winding outgoing line is connected to the wiring terminal, the outgoing line is connected to the wiring chip, and the outgoing direction of the outgoing line is opposite to the direction in which the wiring terminal extends out of the rotary transformer body.

Preferably, the rotary transformer body further comprises an insulating framework, the insulating framework comprises a first insulating framework and a second insulating framework, the first insulating framework and the second insulating framework are matched with each other to clamp the stator core, and the winding is wound on the insulating framework; and the first insulating framework or the second insulating framework is provided with an installation part for fastening and installing the wiring assembly.

Preferably, the installation department includes mounting groove and mounting hole, the mounting groove is used for installing the lug, the mounting hole is used for installing the terminal, just mounting hole and mounting groove intercommunication.

Preferably, one side of the mounting groove, which is far away from the mounting hole, is provided with an avoiding opening for avoiding the outgoing line.

Preferably, the shape of the rotary transformer body is a circular ring, and the outgoing line is parallel to the central axis of the rotary transformer body.

Preferably, the winding outgoing line is connected with the wiring terminal in an argon arc welding mode.

Preferably, a welding area is formed on the terminal strip, and the lead wire is welded to the welding area by resistance welding.

Preferably, the outer diameter of the stator core is between 37mm and 160 mm.

Preferably, the wiring assembly is manufactured by integral molding.

Preferably, the overall length of the wiring assembly is 19mm to 25 mm.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the wiring assembly consisting of the wiring terminal and the wiring lug is integrally arranged to be flat, the outgoing line is fixedly connected to the wiring lug, and the extending direction of the wiring terminal is opposite to the outgoing direction of the outgoing line, so that on one hand, the working space for fixedly connecting the outgoing line to the wiring lug is enlarged, and therefore, the welding can be carried out in a resistance welding mode, the connection quality of the outgoing line and the wiring lug is improved, on the other hand, the height of the mounting part is reduced, the structure is compact, the size is small, and the convenience in assembling of the rotary transformer is improved;

2. according to the invention, the avoiding opening which is arranged in the mounting groove and deviates from the mounting hole is used for avoiding the outgoing line, so that the outgoing line direction of the outgoing line is opposite to the extending direction of the binding post, and the convenience of mounting the wiring assembly in the corresponding mounting groove and the mounting hole is improved by means of the avoiding space of the avoiding opening;

3. the invention can play a role in marking through the welding area arranged on the lug plate, is favorable for ensuring the correct installation of the wiring assembly on one hand, and is favorable for improving the convenience of welding the lead-out wire to a specified position by workers on the other hand.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic diagram of an overall structure of a rotary transformer according to the background art;

FIG. 2 is a schematic view of an overall connection structure of a lug and a binding post according to the background art;

FIG. 3 is a schematic diagram of the overall structure of a rotary transformer according to an embodiment of the present invention;

FIG. 4 is a schematic view of the overall construction of a wiring assembly in a primary embodiment of the present invention;

fig. 5 is a schematic view of an overall structure of a first insulating skeleton according to the present invention;

FIG. 6 is a schematic view of an overall structure of a second insulating skeleton according to the present invention;

FIG. 7 is a schematic view of the overall structure of the mounting portion according to the present invention;

fig. 8 is a partial comparison diagram of the space of the lead-out wire and the wiring terminal in the embodiment of the invention and the background technology.

Shown in the figure:

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

As shown in fig. 3 and 4, the axial outgoing line reluctance resolver according to the present invention includes a resolver body 1 and outgoing lines 2, where the resolver body 1 includes a stator core 3, a winding, and an insulating bobbin. Install wiring subassembly 6 on the resolver body 1, wiring subassembly 6 is the platykurtic, and wiring subassembly 6 can electrically conduct. The wiring assembly 6 comprises a wiring post 7 and a wiring lug 8 which are integrally formed. The winding comprises a winding outgoing line, the winding outgoing line is connected to the wiring terminal 7, the outgoing line 2 is connected to the wiring lug 8, and the outgoing direction of the outgoing line 2 is opposite to the direction in which the wiring terminal 7 extends out of the rotary transformer body 1.

By using the flat wiring assembly 6 manufactured by integral molding, the outgoing line of the winding is connected to the wiring terminal 7, the outgoing line 2 is connected to the wiring lug 8, and the outgoing line direction of the outgoing line 2 is opposite to the direction in which the wiring terminal 7 extends outward to the rotary transformer body 1. Therefore, the shielding of the structure on the rotary transformer body 1 on the lug 8 can be reduced, the working space of a worker for welding the outgoing line 2 on the lug 8 is enlarged, the outgoing line 2 and the lug 8 can be connected in a resistance welding mode, and compared with the mode of tin welding connection in the prior art, the reliability of connection of the outgoing line 2 and the lug 8 is improved.

As shown in fig. 5 and 6, the resolver body 1 has a circular ring shape, and the insulating bobbin has a circular ring shape and is made of an insulating material. Insulating skeleton includes first insulating skeleton 4 and the insulating skeleton 5 of second, and first insulating skeleton 4 and the insulating skeleton 5 two of second are relative cooperation setting, and the cooperation of first insulating skeleton 4 and the insulating skeleton 5 of second can stably centre gripping stator core 3 and welded fastening. And the first insulating framework 4 and the second insulating framework 5 are matched with the stator core 3 stably and then wound by a machine to form a winding.

As shown in fig. 5 and 7, a mounting portion 9 is integrally formed on the first insulating frame 4, the mounting portion 9 is located at an edge position of an outer contour of the first insulating frame 4, a mounting groove 10 and a mounting hole 11 are integrally formed on the mounting portion 9, the mounting groove 10 is communicated with the mounting hole 11, the size of the mounting groove 10 is matched with that of the lug 8, and the size of the mounting hole 11 is matched with that of the terminal 7.

When the wiring assembly 6 is mounted on the mounting portion 9, the wiring lug 8 is stably mounted in the mounting groove 10, the wiring terminal 7 is stably mounted in the mounting hole 11, one end of the wiring terminal 7, which is far away from the wiring lug 8, penetrates through the mounting hole 11 and extends in a direction far away from the resolver body 1, and the extending direction of the wiring terminal 7 is parallel to the axial direction of the resolver body 1. The wiring connection assembly 6 in the present application is mounted with six sets on the mounting portion 9.

And avoidance ports 12 are formed in one sides of the six mounting grooves 10 departing from the mounting holes 11, and the avoidance ports 12 are used for avoiding the outgoing lines 2. When installing wiring subassembly 6 on installation department 9, coupling assembling can make terminal 7 penetrate corresponding mounting hole 11 in through the dodging space of dodging mouth 12 to help improving the convenience that coupling assembling installed on installation department 9.

And a winding outlet wire of the winding is wound on the wiring terminal 7 and is fixedly connected with the wiring terminal 7 in an argon arc welding mode. The lug 8 is formed with a land 13, and the land 13 can serve as a mark to ensure that the wiring member 6 is correctly mounted. The lead wire 2 is fixedly connected to the bonding pad 13, and the lead wire 2 is led out in the direction opposite to the direction in which the terminal 7 extends outward from the resolver body 1, so that the lead wire 2 and the terminal 7 do not interfere with each other. Compare with lead-out wire 2 and terminal 7 among the prior art towards same direction extension, when this application welded lead-out wire 2 to lug 8, had bigger operating space to with lead-out wire 2 fixed connection when weld region 13, can adopt the mode of resistance welding, and then make that lead-out wire 2 and lug 8 are connected inseparabler and reliable.

As shown in fig. 8, the horizontal axis direction in the drawing indicates the axial direction of the resolver body 1, and the vertical axis direction in the drawing indicates a direction perpendicular to the axial direction of the resolver body 1. In this application, the arrangement mode that the extension directions of the outgoing lines 2 and the binding posts 7 are opposite, the space of the installation part 9 along the axial two sides of the rotary transformer body 1 is fully utilized, compared with the arrangement mode of the outgoing lines 2 and the binding posts 7 in the prior art, the axial space of the installation part 9 along the rotary transformer body 1 is saved, the thickness of the installation part 9 is further reduced, the installation part 9 is integrally flat, the structure is more compact, the occupied space is less, and the installation is convenient.

Preferred embodiment(s) of the invention

As shown in fig. 3 and 4, according to the axial outlet reluctance type resolver provided by the present invention, the outer diameter of the stator core 3 suitable for the present application is between 37mm and 160 mm. The overall length of the wiring assembly 6 is 19mm-25mm and the preferred dimensions of the lug 8 are 2.2 x 4mm, 3 x 5 mm.

Principle of operation

In the work, through the design that the outlet direction of lead-out wire 2 and terminal 7 extend to rotary transformer body 1 outside opposite direction, when the staff is with lead-out wire 2 fixed connection to the weld zone 13 on the connection piece, the interference effect can not produce to the welding process in terminal 7 structure, and then can have enough space to adopt resistance welding's mode with lead-out wire 2 fixed connection to the weld zone 13 of connection piece, has improved the reliability that lead-out wire 2 and connection piece are connected.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The axial outgoing line reluctance type rotary transformer is characterized by comprising a rotary transformer body (1) and outgoing lines (2), wherein the rotary transformer body (1) comprises a stator core (3) and a winding;

the rotary transformer is characterized in that a wiring assembly (6) is arranged on the rotary transformer body (1), the wiring assembly (6) is flat, and the wiring assembly (6) comprises a wiring terminal (7) and a wiring lug (8);

the winding comprises a winding outgoing line, the winding outgoing line is connected to a binding post (7), the outgoing line (2) is connected to a lug plate (8), and the outgoing direction of the outgoing line (2) is opposite to the direction in which the binding post (7) extends out of the rotary transformer body (1).

2. The axial outlet reluctance type resolver according to claim 1, wherein the resolver body (1) further comprises an insulating bobbin, the insulating bobbin comprises a first insulating bobbin (4) and a second insulating bobbin (5), the first insulating bobbin (4) and the second insulating bobbin (5) cooperate to clamp the stator core (3), and the winding is wound on the insulating bobbin;

and the first insulating framework (4) or the second insulating framework (5) is provided with an installation part (9) for fastening and installing the wiring component (6).

3. The axial outlet reluctance-type resolver according to claim 2, wherein the mounting portion (9) comprises a mounting groove (10) and a mounting hole (11), the mounting groove (10) is used for mounting the lug (8), the mounting hole (11) is used for mounting the terminal (7), and the mounting hole (11) and the mounting groove (10) are communicated.

4. The axial outlet reluctance type rotary transformer of claim 3, wherein an avoiding opening (12) for avoiding the outgoing line (2) is arranged at one side of the mounting groove (10) departing from the mounting hole (11).

5. The axial outlet reluctance resolver according to claim 1, wherein the resolver body (1) is in the shape of a circular ring, and the outlet wires (2) are parallel to the central axis of the resolver body (1).

6. The reluctance-type resolver according to claim 1, wherein said winding outlet is connected to the terminal (7) by argon arc welding.

7. The axial outlet reluctance resolver according to claim 1, wherein a land (13) is formed on said tab (8), and said outlet wire (2) is resistance-welded to said land (13).

8. The axial outlet reluctance resolver according to claim 1, wherein the outer diameter of the stator core (3) is between 37mm-160 mm.

9. The axial outlet reluctance resolver according to claim 1, wherein the wiring member (6) is integrally formed.

10. The axial outlet reluctance resolver according to claim 1, wherein the overall length of said wiring member (6) is 19mm to 25 mm.