Motor stator structure

Abstract

The utility model relates to the technical field of motor stator structures, in particular to a motor stator structure, which comprises an iron core, a coil holder is fixedly connected on the inner wall of the iron core, a plurality of groups of wire frames are fixedly connected on the inner wall of the coil holder, the plurality of groups of wire frames are arranged in a circumferential array, wire slots are arranged in the middle of the plurality of groups of wire frames, and coils are wound between adjacent wire slots. The surfaces, away from the iron core, of the multiple sets of wire frames are each provided with an insulation isolation assembly in a clamped mode, and the multiple sets of insulation isolation assemblies are arranged in a circumferential array mode and surround the exterior of the motor rotor. A coil is wound among a plurality of groups of wire frames, the wire frames are installed in an iron core through a wire rack, one end of each group of wire frames is clamped with an insulation isolation assembly, and the insulation isolation assemblies prevent the coil from being exposed out of the wire frames and isolate a stator from a rotor, so that the insulation performance and the protection performance between the stator and the rotor are improved; and the service life of the motor stator is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor stator structure field, concretely is a motor stator structure. BACKGROUND

[0002] Motor stator is the important component of generator and starter motor etc. motor, and stator is composed of stator core, stator winding and machine base three parts, and the main role of stator is to produce rotating magnetic field, and the main role of rotor is to be cut by magnetic line of force in rotating magnetic field and to produce current.

[0003] The existing motor stator structure such as the stator structure and motor in patent application number "CN202322089960.7" are proposed, through the structure of stator yoke, stator slot, stator tooth etc. stator structure, can adapt to the rotor structure of different pole number, so that the motor formed by the rotor structure of different pole number all has higher performance.

[0004] But the prior art has defects, the coil is wound in the stator slot, and the stator slot has a notch at one end, when more groups of coils are wound in the stator slot or the coils in the stator slot are loose, the coils will be exposed through the notch, causing the coils to touch the rotor and cause abrasion or winding, therefore, a motor stator structure is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a motor stator structure to solve the problems in the above background technology.

[0006] The purpose of the utility model can be realized by the following technical scheme:

[0007] A motor stator structure, comprising a core, the inner wall of the core is fixedly connected with a wire rack, the inner wall of the wire rack is fixedly connected with a plurality of wire frames, the plurality of wire frames are arranged in a circumferential array, a wire slot is formed in the middle of each wire frame, a coil is wound between adjacent wire slots, an insulation isolation assembly is installed on the side of each wire frame away from the core, the plurality of insulation isolation assemblies are arranged in a circumferential array, and the plurality of insulation isolation assemblies surround the outside of the motor rotor.

[0008] Preferably, the wire frame is rectangular in shape, and the corners of the inner wall and the outer wall of the wire frame are circular in shape, each wire frame has a slot on the side away from the core, and the plurality of slots are in communication with the plurality of wire slots.

[0009] Preferably, the insulation isolation assembly comprises a partition layer, the partition layer is installed on the wire frame, the partition layer is arc-shaped in shape, one side of the partition layer is in close contact with the wire frame, and a clamping plate is fixedly connected to the side of the partition layer in close contact with the wire frame.

[0010] Preferably, an insulating layer is sleeved between the adjacent wire slots, the coil is wound on the insulating layer, the iron core is fixedly connected with an end ring at both ends, the end ring abuts against the insulation isolation assembly, a three-phase terminal is fixedly connected on the end ring and is sleeved with a protective sleeve on the side wall of the end ring close to the end ring.

[0011] Preferably, a thermistor is fixedly connected to the inner wall of the wire holder, the thermistor is located between the groups of wire frames, and the outer wall of the thermistor is sleeved with a glass fiber sleeve for protection.

[0012] Preferably, a plurality of buried holes are formed in one end of the iron core, and a platinum resistance is fixedly connected in the buried hole.

[0013] The utility model discloses the beneficial effects of:

[0014] The utility model discloses a coil is wound between the groups of wire frames, and the wire frame is installed in the iron core through the wire holder, and the insulation isolation assembly is clamped and installed at one end of each group of wire frames, the insulation isolation assembly prevents the coil from exposing from the wire frame, and the stator and the rotor are isolated, the insulation performance and the protection performance between the stator and the rotor are increased, and the service life of the motor stator is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings;

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the structure schematic diagram of the stator side of the utility model;

[0018] Figure 3 It is the internal structure schematic diagram of the stator of the utility model;

[0019] Figure 4 It is Figure 3 The structure enlarged schematic diagram of A of;

[0020] Figure 5 It is the sectional structure schematic diagram of the stator of the utility model;

[0021] Figure 6 It is the structure schematic diagram of the thermistor of the utility model;

[0022] The reference signs in the drawings are as follows:

[0023] 1, iron core; 2, wire frame; 3, wire frame; 4, wire slot; 5, coil; 6, notch; 7, spacer; 8, clamping plate; 9, insulation layer; 10, glass fiber sleeve; 11, thermistor; 13, sealing ring; 15, three-phase terminal; 16, protective sleeve; 17, buried hole; 18, platinum resistance. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] A motor stator structure, as shown in Figures 1-6 It comprises an iron core 1, the inner wall of the iron core 1 is fixedly connected with a wire frame 2, the inner wall of the wire frame 2 is fixedly connected with a plurality of wire frames 3, the plurality of wire frames 3 are arranged in a circumferential array, the middle part of the plurality of wire frames 3 is provided with a wire slot 4, the adjacent wire slots 4 are wound with a coil 5, the side of the plurality of wire frames 3 away from the iron core 1 is fixedly connected with an insulation isolation assembly, the plurality of insulation isolation assemblies are arranged in a circumferential array, and the plurality of insulation isolation assemblies surround the outside of the motor rotor.

[0026] By winding the coil 5 between the plurality of wire frames 3, the wire frame 3 is installed inside the iron core 1 through the wire frame 2, the insulation isolation assembly is fixedly connected at one end of each wire frame 3, and the plurality of insulation isolation assemblies surround between the rotor and the stator. The insulation isolation assembly not only prevents the coil 5 from being exposed from the inside of the wire frame 3, but also isolates between the stator and the rotor, increases the insulation performance and protection performance between the two, and improves the service life of the motor stator.

[0027] As shown in Figure 4 The wire frame 3 is arranged in a rectangular shape, and the corners of the inner wall and the outer wall of the wire frame 3 are arranged in a round corner shape, the side of the plurality of wire frames 3 away from the iron core 1 is provided with a notch 6, and the plurality of notches 6 are respectively communicated with the plurality of wire slots 4.

[0028] The rectangular wire frame 3 has good binding capacity for the coil 5, the round corner shape means that the corners of the wire frame 3 are relatively round, so as to reduce the abrasion degree of the wire frame 3 corners to the coil 5, and the notch 6 facilitates winding of the coil 5.

[0029] As shown in Figures 3-4 The insulation isolation assembly comprises a spacer 7, the spacer 7 is fixedly connected on the wire frame 3, the spacer 7 is arranged in a circular arc shape, one side of the spacer 7 is closely attached to the wire frame 3, and the side of the spacer 7 closely attached to the wire frame 3 is fixedly connected with a clamping plate 8, and the clamping plate 8 is fixedly connected in the notch 6.

[0030] The spacer layer 7 and the clamping plate 8 are made of insulating material, the spacer layer 7 is clamped and installed on the wire frame 3 through the clamping plate 8, the slot 6 of the wire frame 3 is blocked, the coil 5 is prevented from being exposed and abraded, and the spacer layer 7 increases the insulation performance.

[0031] As shown in Figure 5 The insulating layer 9 is arranged between the adjacent wire slots 4, the coil 5 is wound on the insulating layer 9, the end of the iron core 1 is fixedly connected with the sealing ring 13, the sealing ring 13 is abutted with the insulating isolation assembly, the three-phase connecting terminal 15 is communicated and fixedly connected on the sealing ring 13, and the protective sleeve 16 is arranged on the side wall of the end of the three-phase connecting terminal 15 close to the sealing ring 13.

[0032] The insulating layer 9 is located between the coil 5 and the wire frame 3, the area of direct contact between the coil 5 and the wire frame 3 is reduced, and the insulation performance between the coil 5 and the wire frame 3 is increased.

[0033] As shown in Figures 5-6 The thermal resistor 11 is fixedly connected to the inner wall of the wire frame 2, the thermal resistor 11 is located between the groups of wire frames 3, and the outer wall of the thermal resistor 11 is protected by the glass fiber sleeve 10.

[0034] The thermal resistor 11 (model MPT1000A-3CA500K) improves the safety and stability of the motor, and the external glass fiber sleeve 10 is protected.

[0035] As shown in Figures 1-5 A plurality of buried holes 17 are formed in one end of the iron core 1, and the platinum resistor 18 is fixedly connected in the buried hole 17.

[0036] Part of the buried hole 17 is used as a spare, and the platinum resistor 18 (model PT1000) is mainly used for measuring the temperature of the motor, and the working state of the motor is judged by measuring the temperature of the motor, so that the normal operation of the motor is ensured.

[0037] The working principle of the motor stator structure provided by the utility model is as follows:

[0038] The coil 5 is wound between the groups of wire frames 3, the wire frame 3 is installed in the iron core 1 through the wire frame 2, the insulating isolation assembly is clamped and installed at one end of each group of wire frames 3, a plurality of insulating isolation assemblies are arranged between the rotor and the stator, the insulating isolation assembly prevents the coil 5 from being exposed from the inside of the wire frame 3, and the stator and the rotor are isolated, the insulation performance and the protection performance between the stator and the rotor are increased, and the service life of the motor stator is improved.

[0039] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An electric machine stator structure comprising a core (1), characterized in that, The inner wall of the iron core (1) is fixed with a wire frame (2), the inner wall of the wire frame (2) is fixed with a plurality of wire frames (3), the plurality of wire frames (3) are arranged in a circumferential array, the middle part of the plurality of wire frames (3) is provided with a wire slot (4), the adjacent wire slots (4) are wound with a coil (5), the far side of the plurality of wire frames (3) from the iron core (1) is fixed with an insulation isolation assembly, the plurality of insulation isolation assemblies are arranged in a circumferential array, and the plurality of insulation isolation assemblies are arranged around the outer part of the motor rotor.

2. A motor stator structure according to claim 1, wherein The wire frame (3) is rectangular in shape, and the corners of the inner wall and the outer wall of the wire frame (3) are circular in shape, and the far side of the plurality of wire frames (3) from the iron core (1) is provided with a slot (6), and the plurality of slots (6) are respectively communicated with the plurality of wire slots (4).

3. A motor stator structure according to claim 2, wherein The insulation isolation assembly comprises a partition layer (7) which is clamped and installed on the wire frame (3), the partition layer (7) is arc-shaped in shape, one side of the partition layer (7) is close to the wire frame (3), and the partition layer (7) is close to the wire frame (3) One side of the partition layer (7) is fixedly connected with a clamping plate (8), and the clamping plate (8) is clamped and installed in the slot (6).

4. A motor stator structure as claimed in claim 1, wherein The adjacent wire slots (4) are sleeved with an insulation layer (9), the coil (5) is wound on the insulation layer (9), the both ends of the iron core (1) are fixedly connected with a sealing ring (13), the sealing ring (13) is abutted with the insulation isolation assembly, the sealing ring (13) is fixedly connected with a three-phase terminal (15) which is communicated, and the three-phase terminal (15) is close to the sealing ring (13) One end side wall of the three-phase terminal (15) is sleeved with a protective sleeve (16).

5. A motor stator structure as claimed in claim 1, wherein The inner wall of the wire frame (2) is fixedly connected with a thermistor (11), the thermistor (11) is located between the plurality of wire frames (3), and the outer wall of the thermistor (11) is sleeved with a glass fiber sleeve (10) for protection.

6. A motor stator structure as claimed in claim 1, wherein The one end of the iron core (1) is provided with a plurality of buried holes (17), and the platinum resistance (18) is fixedly connected in the buried hole (17).

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