CN219678227U

CN219678227U - Stator, assembly jig and rotary transformer

Info

Publication number: CN219678227U
Application number: CN202321279638.4U
Authority: CN
Inventors: 曲洪涛; 相起超; 王军; 李慧杰
Original assignee: Huashide Electronic Technology Kunshan Co ltd
Current assignee: Huashide Electronic Technology Kunshan Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-09-12
Anticipated expiration: 2033-05-24

Abstract

The utility model discloses a stator, an assembly jig and a rotary transformer, and relates to the technical field of rotary transformers, wherein the stator comprises a terminal block and an exciting coil, the terminal block comprises a plurality of PIN needles and a plurality of wire hanging holes, the exciting coil comprises a plurality of outgoing wires, the PIN needles correspond to the outgoing wires one by one, and the outgoing wires are in bending connection between the PIN needles and the exciting coil; the wire hanging hole is used for accommodating a winding piece for assisting in bending of the outgoing wire. The assembly jig is used for assisting in assembling the stator and comprises a base and a winding piece, wherein the base is used for being abutted to a terminal block of the stator, the winding piece is connected to the base and is used for being matched and inserted into a wire hanging hole of the stator, and the outgoing wire is bent and turned at the position of the winding piece. The rotary transformer comprises a rotor and the stator. The stator upper outgoing line is connected in a bending way, and the rotary transformer has the effects of simplicity, reasonability, easiness in winding, stable stress and prolonged service life.

Description

Stator, assembly jig and rotary transformer

Technical Field

The utility model relates to the technical field of rotary transformers, in particular to a stator, an assembly jig and a rotary transformer.

Background

The resolver is an electromagnetic sensor for measuring the angular displacement and angular velocity of a rotating shaft of a rotating member. The rotary transformer comprises a rotor fixed on a rotating shaft and a stator fixed on a rotating member shell, wherein the stator is used as a primary side of the transformer and receives exciting voltage, and the rotor is used as a secondary side of the transformer and obtains induction voltage through electromagnetic coupling. When the rotor synchronously rotates along with the rotating shaft, the induced voltage correspondingly changes due to the change of the gap between the rotor and the stator, and the angular displacement and the angular speed of the rotating shaft are reflected by detecting and decoding the induced voltage.

In the prior art, a stator comprises a stator core, an exciting coil, an insulator and a terminal block, wherein the stator core is formed by laminating a plurality of annular iron core sheets, a plurality of stator teeth are arranged on the iron core sheets, the exciting coil is arranged in a space between adjacent stator teeth, and the insulator is used for insulating and separating the exciting coil from the stator core; the terminal block comprises a block body, a terminal strip and a terminal cover, wherein the block body is connected with the insulator, the terminal strip is fixed on the block body, a plurality of PIN needles are arranged on the terminal strip, one sides of the PIN needles are welded with outgoing lines of the exciting coils, the other sides of the PIN needles are connected with external wires, and the external wires are used for providing exciting voltages for the exciting coils; the terminal cover is covered on the table body, and the junction of the PIN needle and the exciting coil is covered and protected.

In the prior art, when a PIN needle on a stator is connected with an outgoing line of an excitation coil, the outgoing line is linearly stretched between the PIN needle and the excitation coil; when the rotary transformer works for a long time, the tightened outgoing line is easy to break due to the action of heat expansion and cold contraction, so that the normal operation of the rotary transformer is affected.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to solve the problems that in the prior art, the lead wires of the PIN needle and the exciting coil on the stator are in straight line tightening connection, the lead wires are easy to break, and the normal operation of the rotary transformer is affected.

In order to solve the technical problems, the utility model provides a stator, which comprises a terminal block and an excitation coil, wherein the terminal block comprises a plurality of PIN needles and a plurality of wire hanging holes, the excitation coil comprises a plurality of outgoing wires, the PIN needles and the outgoing wires are in one-to-one correspondence, and the outgoing wires are in bending connection between the PIN needles and the excitation coil; the wire hanging hole is used for accommodating a winding piece for assisting the outgoing wire to bend.

In one embodiment of the utility model, the lead wire and the PIN are soldered.

In one embodiment of the utility model, one end of the outgoing line is wound around the PIN needle.

In one embodiment of the utility model, the two outgoing lines are in a group, the bending directions of the two outgoing lines in each group are opposite, and the bending paths of the two outgoing lines are intersected.

In order to solve the technical problem, the utility model further provides an assembly jig for assisting in assembling the stator, which comprises a base and a winding piece, wherein the base is used for being abutted against a terminal block of the stator, the winding piece is connected to the base and is used for being matched and inserted into a wire hanging hole of the stator, and the outgoing wire bends and turns at the position of the winding piece.

In one embodiment of the utility model, the winding member is cylindrical.

In one embodiment of the utility model, the base is provided with a positioning groove, and the positioning groove is used for being matched and abutted with a positioning boss correspondingly arranged on the terminal block of the stator.

In one embodiment of the present utility model, the positioning groove is an arc groove.

In one embodiment of the present utility model, the device further comprises a chassis, and the chassis is connected with the base.

In order to solve the technical problems, the utility model further provides a rotary transformer, which comprises a rotor and the stator.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the stator comprises a terminal block and an excitation coil, wherein the terminal block comprises a plurality of PIN needles and a plurality of wire hanging holes, the excitation coil comprises a plurality of outgoing wires, the PIN needles and the outgoing wires are in one-to-one correspondence, and the outgoing wires are in bending connection between the PIN needles and the excitation coil; the wire hanging hole is used for accommodating a winding piece for assisting the outgoing wire to bend. The stator is characterized in that the outgoing lines are bent, so that the connection length of the outgoing lines is prolonged, enough deformation is provided for deformation of the outgoing lines under the action of thermal expansion and cold contraction, the action of internal stress on the outgoing lines is reduced, the problem that the outgoing lines are easy to stretch out is solved, and the quality guarantee of the stator is improved. And through seting up the hanging wire hole, with the wire winding spare cooperation on the assembly jig, make things convenient for the lead-out wire to arrange the connection, reduced manufacturing cost.

The assembly jig is used for assisting in assembling the stator and comprises a base and a winding piece, wherein the base is used for being abutted against a terminal block of the stator, the winding piece is connected to the base and is used for being inserted into a wire hanging hole of the stator in a matched mode, and the outgoing wire bends and turns at the position of the winding piece. When carrying out the connection arrangement to the lead-out wire of stator, the base butt of assembly jig is in terminal platform one side of stator, and the wire winding piece wears to establish in the hanging wire hole, and the lead-out wire contacts with the wire winding piece when passing through the wire winding piece to take place the bending and turn to, the wire winding piece provides the atress supporting point for the bending of lead-out wire, has promoted installation effectiveness, guarantee lead-out wire bending connection. And the assembly jig is separated from the stator, so that the waste of production materials is saved, and the economic benefit is improved.

The rotary transformer comprises the rotor and the stator, and the outgoing lines on the stator are wound in a bending way, so that the fracture risk of the outgoing lines is reduced, the quality guarantee is provided for the normal operation of the rotary transformer, and the service life of the rotary transformer is prolonged.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which

Fig. 1 is a schematic structural view of a stator in a preferred embodiment of the present utility model;

FIG. 2 is a schematic diagram of an assembly jig according to a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of the assembly fixture of FIG. 2 in assisting in mounting the stator of FIG. 1;

FIG. 4 is an exploded schematic view of the mating relationship of the assembly jig shown in FIG. 2 and the stator shown in FIG. 1;

fig. 5 is a schematic view showing the structure of a rotary transformer in a preferred embodiment of the present utility model.

Description of the specification reference numerals: 1. a stator; 11. a terminal block; 111. a PIN needle; 112. a wire hanging hole; 113. positioning the boss; 12. an exciting coil; 121. a lead-out wire; 13. a stator core; 2. assembling a jig; 21. a base; 211. a positioning groove; 22. a winding member; 23. a chassis; 3. a rotor.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Example 1

Referring to fig. 1, the utility model discloses a stator 1, which comprises a terminal block 11, an exciting coil 12 and a stator core 13, wherein the terminal block 11 is connected with the stator core 13, the exciting coil 12 is arranged in stator teeth corresponding to the stator core 13, the terminal block 11 comprises a plurality of PIN needles 111 and a plurality of wire hanging holes 112, the exciting coil 12 comprises a plurality of outgoing wires 121, the PIN needles 111 are in one-to-one correspondence with the outgoing wires 121, and the outgoing wires 121 are in bending connection between the PIN needles 111 and the exciting coil 12; the wire hanging hole 112 is used to accommodate the winding piece 22 of which the auxiliary outgoing wire 121 is bent.

The stator 1 extends the connection length of the outgoing line 121 by bending the outgoing line 121, provides enough deformation for the outgoing line 121 to deform under the action of thermal expansion and cold contraction, reduces the action of internal stress on the outgoing line 121, improves the problem that the outgoing line 121 is easy to stretch, and improves the quality guarantee of the stator 1. And through seting up the hanging wire hole 112, cooperate with the wire winding piece 22 on the assembly jig 2, make things convenient for the lead-out wire 121 to arrange the connection, reduced manufacturing cost.

In the present embodiment, the lead wire 121 and the PIN 111 are soldered. Preferably, one end of the lead-out wire 121 is wound around the PIN 111. The outgoing line 121 and the PIN needle 111 are welded, so that good electrical connectivity of the outgoing line 121 and the PIN needle 111 is guaranteed, the outgoing line 121 is wound on the PIN needle 111, the connection strength of the outgoing line 121 and the PIN needle 111 is improved, the risks of stress concentration and easy disconnection at welding points of the outgoing line 121 and the PIN needle 111 are reduced, and the quality of the stator 1 is improved.

Referring to fig. 1, in the present embodiment, it is preferable that two lead wires 121 are grouped, the bending directions of the two lead wires 121 in each group are opposite, and the bending paths of the two lead wires 121 intersect.

The outgoing lines 121 are arranged in groups, so that the distribution uniformity of the outgoing lines 121 during bending connection is improved, the risk of scratch damage caused by multiple times of contact with the outgoing lines 121 due to disordered winding is reduced, and the effectiveness of line connection is improved.

The implementation principle of the stator in this embodiment is as follows: the outgoing line 121 of the stator 1 is connected between the exciting coil 12 and the PIN needle 111 in a bending way, so that the connection length of the outgoing line 121 is prolonged, enough deformation is provided for deformation of the outgoing line 121 under the action of thermal expansion and cold contraction, the action of internal stress on the outgoing line 121 is reduced, the problem that the outgoing line 121 is easy to stretch out is solved, and the quality guarantee of the stator 1 is improved.

Example two

Referring to fig. 2 to 4, the present utility model also discloses an assembling jig 2 for assisting in assembling the stator 1, which includes a base 21 and a winding member 22, wherein the base 21 is used for abutting against the terminal block 11 of the stator 1, the winding member 22 is connected to the base 21, the winding member 22 is used for being cooperatively inserted into a wire hanging hole 112 of the stator 1, and the outgoing wire 121 is bent and turned at the position of the winding member 22.

When the assembly jig 2 is used for assisting in installing the outgoing line 121 of the stator 1, the base 21 is abutted against one side of the terminal block 11 of the stator 1, the winding piece 22 is penetrated in the wire hanging hole 112, the outgoing line 121 is contacted with the winding piece 22 when passing through the winding piece 22, bending and steering occur, the winding piece 22 provides a stress supporting point for bending of the outgoing line 121, the installation efficiency is improved, and the bending connection of the outgoing line 121 is ensured. And the assembly jig 2 is arranged separately from the stator 1, so that the waste of production materials is saved, and the economic benefit is improved.

In the present embodiment, the winding member 22 is preferably cylindrical. The outer surface of the cylindrical winding piece 22 is smoothly arranged, so that the winding piece 22 is conveniently pulled out after the lead-out wire 121 is wound, the winding piece 22 is separated from contact with the lead-out wire 121, and the scratch influence on the lead-out wire 121 is reduced.

In the present embodiment, it is preferable that the number of the winding pieces 22 is set to half the number of PIN needles 111, the number of the corresponding wire hanging holes 112 on the stator 1 is also set to half the number of PIN needles 111, and each wire hanging hole 112 is positioned between two PIN needles 111. The outgoing lines 121 connected to the two PIN needles 111 are contacted with one winding piece 22 to bend, the outgoing lines 121 are reasonably arranged, the loss of materials of the winding piece 22 is reduced, and the production cost is reduced.

Referring to fig. 2 and 4, in the present embodiment, preferably, a positioning groove 211 is formed on the base 21, a positioning boss 113 is correspondingly disposed on the terminal block 11 of the stator 1, and when the assembly jig 2 is used for auxiliary installation of the stator 1, the positioning groove 211 is matched with the positioning boss 113 correspondingly formed on the terminal block 11. Specifically, the positioning groove 211 is an arc-shaped groove.

Through the setting of positioning groove 211, the positioning installation of assembly jig 2 and stator 1 assembly position has been made things convenient for, convenient operation has reduced the location degree of difficulty, and assembly jig 2 and every stator 1 assembly position keep unanimous, has improved stator 1's batch assembly quality.

In this embodiment, the assembly fixture 2 preferably further includes a chassis 23, and the chassis 23 is connected to the base 21. The chassis 23 is discoid, and chassis 23 and base 21 set up to echelonment, and after assembly jig 2 and stator 1 cooperation installation, chassis 23 carries out the bearing to stator core 13, guarantees stable installation basis, avoids stator 1 to take place to rock when the assembly, has improved stator 1 and has gone up the connection assembly quality of lead-out wire 121.

The implementation principle of the assembly fixture 2 in this embodiment is as follows: when the lead wire 121 is assembled and connected to the stator 1, the assembly jig 2 is mounted in an auxiliary manner, the base 21 of the assembly jig 2 is abutted against one side of the terminal block 11 of the stator 1, the chassis 23 of the assembly jig 2 is abutted against the stator core 13 of the stator 1, the winding piece 22 is inserted into the wire hanging hole 112 of the stator 1, one end of the winding piece is extended out of the wire hanging hole 112, and when the lead wire 121 is connected to the winding piece 22, the winding piece 22 is contacted and bent in a turning manner, and then the lead wire 121 is connected to the corresponding PIN 111. After the connection of the lead wires 121 is completed, the fitting of the jig 2 and the stator is released, and the winding member 22 is disengaged from the contact with the lead wires 121 and slides out from the wire hanging hole 112. The assembly jig 2 is arranged separately from the stator 1, so that waste of production materials is saved, and economic benefit is improved.

Example III

Referring to fig. 5, the utility model also discloses a rotary transformer, which comprises a rotor 3 and the stator 1, wherein the rotor 3 is arranged in an annular space of a stator core 13, the rotor 3 is connected with an external rotating member rotating shaft, and the rotor 3 synchronously rotates along with the rotating shaft, so that continuously changing induced voltage is output and the angular displacement and the angular velocity of the rotating shaft are reflected.

The rotary transformer is wound through the bending of the outgoing line 121 on the stator 1, so that the risk of fracture of the outgoing line 121 is reduced, quality guarantee is provided for normal operation of the rotary transformer, and the service life of the rotary transformer is prolonged.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. A stator, characterized in that: the terminal block comprises a plurality of PIN needles and a plurality of wire hanging holes, the exciting coil comprises a plurality of outgoing wires, the PIN needles and the outgoing wires are in one-to-one correspondence, and the outgoing wires are in bending connection between the PIN needles and the exciting coil; the wire hanging hole is used for accommodating a winding piece for assisting the outgoing wire to bend.

2. A stator according to claim 1, characterized in that: and the outgoing line is welded with the PIN needle.

3. A stator according to claim 2, characterized in that: one end of the outgoing line is wound on the PIN needle.

4. A stator according to claim 1, characterized in that: the two outgoing lines are in a group, the bending directions of the two outgoing lines in each group are opposite, and the bending paths of the two outgoing lines are crossed.

5. An assembly jig for assisting in assembling a stator as claimed in any one of claims 1 to 4, wherein: the stator winding device comprises a base and a winding piece, wherein the base is used for being abutted to a terminal block of a stator, the winding piece is connected to the base and is used for being matched and inserted into a wire hanging hole of the stator, and the outgoing wire is bent and turned at the position of the winding piece.

6. The assembly jig of claim 5, wherein: the winding piece is cylindrical.

7. The assembly jig of claim 5, wherein: the base is provided with a positioning groove, and the positioning groove is used for being matched and abutted with a positioning boss correspondingly arranged on the terminal block of the stator.

8. The assembly jig of claim 7, wherein: the positioning groove is an arc-shaped groove.

9. The assembly jig of claim 5, wherein: the base plate is connected with the base.

10. A rotary transformer, characterized in that: comprising a rotor and a stator according to any of claims 1-4.