CN202067658U

CN202067658U - Rotary transformer

Info

Publication number: CN202067658U
Application number: CN2011200953733U
Authority: CN
Inventors: 陈兴元
Original assignee: Broad Ocean EV Technology Co Ltd
Current assignee: Broad Ocean EV Technology Co Ltd
Priority date: 2011-04-02
Filing date: 2011-04-02
Publication date: 2011-12-07
Anticipated expiration: 2021-04-02

Abstract

The utility model discloses a rotary transformer, which comprises a stator component (1) and a stator component (2). The stator component (1) comprises a stator core (11) and a stator winding (12). The rotary transformer is characterized by further comprising an outer cover (3), a cavity (32) is formed in the outer cover (3), a first step (31) is formed on the inner wall of the outer cover (3), a containing groove (34) enclosed by the inner wall of the outer cover (3) is formed between the first step (31) and an end face (33) of the outer cover (3), the bottom of the stator core (11) is sleeved into the first step (31), an outer edge of the bottom end face of the stator core (11) is supported at the bottom of the first step (31) and axially positioned under compression of a locking device, and a portion, projecting out of the end face of the stator core (11), of the stator winding (12) is embedded into the containing groove (34). The rotary transformer is high in integrity and convenient in assembly, disassembly and repair, mechanical displacement of the stator in use can be avoided as the stator is positioned and mounted in the outer cover, and thereby accuracy of measurement signals is guaranteed, and interference resistance is high.

Description

A kind of resolver

Technical field:

The utility model relates to a kind of resolver.

Background technology:

Traditional resolver comprises stator and rotor, during installation, stator is installed in the hole of the end cap that is complementary with it, and uses pressing plate that stator is fixed, and the method has following drawback: 1. too difficulty is installed, is unfavorable for dismounting, changes and maintenance.2. revolve the stator that becomes device mechanical displacement inside takes place easily, influence the output of motor signal.3. because be in motor internal, be subjected to the magnetic interference of motor windings generation easily; 4) complex structure of end cap, cost is higher.

Summary of the invention:

The purpose of this utility model provides a kind of resolver, and globality is strong, and is easy for assembly, disassembly and maintenance, and stator has been positioned and has been installed in the outer cover the inside, and stator mechanical displacement can not take place in the use, guarantees the accuracy of measuring-signal, and antijamming capability is strong simultaneously.

The purpose of this utility model is achieved by following technical proposals.

A kind of resolver, comprise stator module and rotor assembly, stator module comprises stator core and stator winding, it also comprises outer cover, the outer cover the inside forms cavity, the outer cover madial wall forms first step, between the end face of first step and outer cover, the outer cover madial wall surrounds holding tank, the bottom of stator core packs into first step, the outer rim of stator core bottom face is bearing on the bottom of first step and by locking device and compresses the formation axial location, and the partial stator winding that protrudes from the stator core end face is embedded into the holding tank the inside.

Above-mentioned described locking device comprises screw and pressing plate, is arranged on the 3rd step above first step, and pressing plate is installed on the 3rd step by screw, and pressing plate is pressed in the top of stator core.

Above-mentionedly describedly between first step and the 3rd step second step is set, forms groove between the lateral wall of second step and the stator core, protrude briquetting on the pressing plate and be embedded in the groove, the inclined plane is set on the briquetting, the inclined plane is pressed in the top of stator core.

The outer wall of the openend of above-mentioned described outer cover is provided with flange, installing hole is set on the flange, by screw and flange outer cover and electric motor end cap installation is coupled together, the rotating shaft of stretching out from electric motor end cap enters cavity, the rotor assembly body is installed in the rotating shaft, and the outside of rotor assembly body is with stator module.

Between above-mentioned described flange and the electric motor end cap sealing ring is set.

Above-mentioned described rotating shaft outside of stretching out from electric motor end cap is provided with protective cover, and protective cover is positioned at the cavity the inside, and the bottom of protective cover installs by screw and electric motor end cap.

Above-mentioned described locking device comprises screw, and the outer rim of screw by stator core is by being tightened on the first step.

The utility model compared with prior art, have following effect: 1) the utility model adopts one to be specifically designed to the outer cover that resolver is installed, the bottom of stator core is packed into the first step of outer cover, the outer rim of first step bottom face is bearing on the bottom of first step and by locking device and compresses the formation axial location, the partial stator winding that protrudes from the stator core end face is embedded into the holding tank the inside, the rotor assembly body is enclosed within the stator module the inside, whole resolver forms an integral body, globality is strong, is convenient to install on motor, dismounting, change, maintenance; 2) stator module of resolver is bearing on the bottom of first step and by locking device and compresses the formation axial location, prevents that the resolver stator from mechanical displacement taking place when machine operation, influences the output of motor signal, and it is more reliable to work; 3) stator module, rotor assembly and outer cover integral installation can reduce the electromagnetic interference of the associated components of motor the inside in the electric motor end cap outside, and antijamming capability is strong; 4) locking device comprises screw and pressing plate, above first step, be arranged on the 3rd step, pressing plate is installed on the 3rd step by screw, pressing plate is pressed in the top of stator core, between first step and the 3rd step, second step is set, form groove between the lateral wall of second step and the stator core, protruding briquetting on the pressing plate is embedded in the groove, the inclined plane is set on the briquetting, the inclined plane is pressed in the top of stator core, simple in structure, install firmly, the stator module of resolver can be carried out axially and accurate location radially; 5) outer wall of the openend of outer cover is provided with flange, installing hole is set on the flange, by screw and flange outer cover and electric motor end cap installation are coupled together, the rotating shaft of stretching out from electric motor end cap enters cavity, the rotor assembly body is installed in the rotating shaft, and the outside of rotor assembly body is with stator module, between flange and the electric motor end cap sealing ring is set, simple in structure, easy for installation; 6) from the rotating shaft outside that electric motor end cap stretches out protective cover is set, protective cover is positioned at the cavity the inside, and the bottom of protective cover installs by screw and electric motor end cap, prevents that effectively the foreign matter of resolver from entering motor internal, influences the motor operation.

Description of drawings:

Fig. 1 is the structure cutaway view of the utility model embodiment one.

Fig. 2 is the A-A partial enlarged drawing of Fig. 1.

Fig. 3 is the structure cutaway view of the outer cover of the utility model embodiment one.

Fig. 4 is the scheme of installation of the utility model embodiment one.

Fig. 5 is the structure cutaway view of the utility model embodiment two.

Fig. 6 is the B-B partial enlarged drawing of Fig. 5.。

Embodiment:

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

Embodiment one: as Fig. 1, Fig. 2 and shown in Figure 3, a kind of resolver, comprise stator module 1 and rotor assembly 2, stator module 1 comprises stator core 11 and stator winding 12, it also comprises outer cover 3 in addition, outer cover 3 the insides form cavity 32, outer cover 3 madial walls form first step 31, between the end face 33 of first step 31 and outer cover 3, outer cover 3 madial walls surround holding tank 34, the bottom of stator core 11 packs into first step 31, the outer rim of stator core 11 bottom faces is bearing on the bottom of first step 31 and by locking device and compresses the formation axial location, the partial stator winding 12 that protrudes from stator core 11 end faces is embedded into holding tank 34 the insides, locking device comprises screw 4 and pressing plate 5, above first step 31, be arranged on the 3rd step 35, pressing plate 5 is installed on the 3rd step 35 by screw 4, pressing plate 5 is pressed in the top of stator core 11, between first step 31 and the 3rd step 35, second step 36 is set, form groove 361 between the lateral wall of second step 36 and the stator core 11, protrude briquetting 51 on the pressing plate 5 and be embedded into 361 li of grooves, inclined plane 511 is set on the briquetting 51, inclined plane 511 is pressed in the top of stator core 11, the outer wall of the openend of outer cover 3 is provided with flange 37, on the flange 37 installing hole is set, by screw 6 and flange 37 outer cover 3 and electric motor end cap 7 installations are coupled together, the rotating shaft 8 of stretching out from electric motor end cap 7 enters cavity 32, rotor assembly body 2 is installed in the rotating shaft 8, the outside of rotor assembly body 2 is with stator module 1, between flange 37 and the electric motor end cap 7 sealing ring 9 is set, rotating shaft 8 outsides of stretching out from electric motor end cap 7 are provided with protective cover 10, protective cover 10 is positioned at cavity 32 the insides, and the bottom of protective cover 10 installs by screw and electric motor end cap 7.As shown in Figure 4, electric motor end cap 7 is installed in the end of motor 102, and outer cover 3, rotor assembly body 2 and stator module 1 are installed in the outside of electric motor end cap 7.

Embodiment two: as shown in Figure 5 and Figure 6, a kind of resolver, comprise stator module 1 and rotor assembly 2, stator module 1 comprises stator core 11 and stator winding 12, it also comprises outer cover 3 in addition, outer cover 3 the insides form cavity 32, outer cover 3 madial walls form first step 31, between the end face 33 of first step 31 and outer cover 3, outer cover 3 madial walls surround holding tank 34, the bottom of stator core 11 packs into first step 31, the outer rim of stator core 11 bottom faces is bearing on the bottom of first step 31 and by locking device and compresses the formation axial location, the partial stator winding 12 that protrudes from stator core 11 end faces is embedded into holding tank 34 the insides, locking device comprises screw 101, the outer rim of screw 101 by stator core 11 is by being tightened on the first step 31, the inwall of outer cover 3 only is provided with first step 31 and the 3rd step 35, and simplified structure reduces cost more.

Claims

1. resolver, comprise stator module (1) and rotor assembly (2), stator module (1) comprises stator core (11) and stator winding (12), it is characterized in that: it also comprises outer cover (3), outer cover (3) the inside forms cavity (32), outer cover (3) madial wall forms first step (31), between the end face (33) of first step (31) and outer cover (3), outer cover (3) madial wall surrounds holding tank (34), the bottom of stator core (11) packs into first step (31), the outer rim of stator core (11) bottom face is bearing on the bottom of first step (31) and by locking device and compresses the formation axial location, and the partial stator winding (12) that protrudes from stator core (11) end face is embedded into holding tank (34) the inside.

2. a kind of resolver according to claim 1, it is characterized in that: locking device comprises screw (4) and pressing plate (5), be arranged on the 3rd step (35) in the top of first step (31), pressing plate (5) is installed on the 3rd step (35) by screw (4), and pressing plate (5) is pressed in the top of stator core (11).

3. a kind of resolver according to claim 2, it is characterized in that: between first step (31) and the 3rd step (35), second step (36) is set, form groove (361) between the lateral wall of second step (36) and the stator core (11), pressing plate (5) is gone up protrusion briquetting (51) and is embedded into groove (361) lining, inclined plane (511) is set on the briquetting (51), and inclined plane (511) are pressed in the top of stator core (11).

4. according to claim 1,2 or 3 described a kind of resolvers, it is characterized in that: the outer wall of the openend of outer cover (3) is provided with flange (37), flange is provided with installing hole on (37), by screw (6) and flange (37) outer cover (3) and electric motor end cap (7) installation are coupled together, the rotating shaft (8) of stretching out from electric motor end cap (7) enters cavity (32), rotor assembly body (2) is installed in the rotating shaft (8), and the outside of rotor assembly body (2) is with stator module (1).

5. a kind of resolver according to claim 4 is characterized in that: between flange (37) and the electric motor end cap (7) sealing ring (9) is set.

6. a kind of resolver according to claim 4, it is characterized in that: rotating shaft (8) outside of stretching out from electric motor end cap (7) is provided with protective cover (10), protective cover (10) is positioned at cavity (32) the inside, and the bottom of protective cover (10) installs by screw and electric motor end cap (7).

7. a kind of resolver according to claim 2 is characterized in that: locking device comprises screw (101), and the outer rim of screw (101) by stator core (11) is by being tightened on the first step (31).