Stator protection structure

Abstract

The utility model belongs to the technical field of stator protection, in particular to a stator protection structure, which comprises a stator iron core and a protection cover arranged on the surface of the stator iron core, a plurality of groups of heat dissipation through holes in an annular array are arranged on the surface of the protection cover, a plurality of groups of movable buckles in an annular array are fixed on the outer wall of the protection cover, and the movable buckles are fixed on the outer wall of the protection cover. The top end of the stator iron core is provided with a plurality of groups of assembly holes matched with the movable buckles, and the stator iron core and the enameled coil exposed outside the iron core framework can be effectively protected through the cooperation of the protective cover, the movable buckles and the assembly holes, so that reliable physical protection is provided for the stator iron core and the enameled coil; the stator core is prevented from being damaged by factors such as external collision, scratch and the like, the insulation performance is ensured to be always stable, serious potential safety hazards such as electric leakage caused by insulation damage are avoided, the use safety of a product is ensured, the service life of the stator core is greatly prolonged, faults are reduced, and the reliability and durability of the product are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stator protection technical field, specifically relates to a stator protection structure. BACKGROUND

[0002] With the vigorous development of new energy automobile market, promote the rapid development of new energy motor market, in new energy motor technology, stator delta connection method because of its reliability and stability, have been more widely used in new energy vehicles;

[0003] However, the current most adopt angle joint way's product exists a remarkable technical problem, cannot effectively protect the enameled coil exposed outside the framework, because enameled coil is often exposed to adhere to the lead framework outside, in the manufacturing and transportation process of product, this structure is very easy to cause enameled coil breakage, once enameled coil breaks, will make the insulation performance of product reduce, and then cause the running electric leakage and other safety problems, seriously affect the quality and use safety of product;

[0004] To solve the above problems, a stator protection structure is provided in the present application. UTILITY MODEL CONTENTS

[0005] To solve the problems raised in the background art, the utility model provides a stator protection structure, which effectively protects the stator core and the enameled coil exposed outside the core framework, thereby providing reliable physical protection for the stator core and the enameled coil, and avoiding damage caused by external collision and scratching.

[0006] To achieve the above object, the utility model provides the following technical scheme: a stator protection structure, comprising a stator core and a protective cover arranged on the surface of the stator core, a plurality of groups of heat dissipation through holes arranged in a ring array are formed on the surface of the protective cover, a plurality of groups of movable buckles arranged in a ring array are fixed to the outer wall of the protective cover, a plurality of groups of assembly holes matched with the movable buckles are formed at the top end of the stator core, a positioning plug is fixed to the upper surface of the stator core, a positioning hole matched with the positioning plug is formed in the interior of the protective cover, and a sealed power connection seat is fixed to the surface of the protective cover.

[0007] As a preferred stator protection structure of the utility model, a plurality of enameled coils are arranged in the interior of the stator core, the power connection end of each enameled coil is connected with a power connection wire, a sealing plug is fixed to the surface of the power connection wire, and a sealing slot matched with the sealing plug is formed in the interior of the sealed power connection seat.

[0008] As a preferred stator protection structure of the utility model, a plurality of sealing rings arranged at equal distances are fixed to the surface of the sealing plug, a lead terminal is fixed to one end of the sealing plug, and the lead terminal is connected with the power connection wire.

[0009] As the utility model discloses a stator protection structure preferably, the bottom of the lead terminal is fixed with a positioning strip, and the sealing power connection seat is internally provided with a sealing passageway matched with the lead terminal.

[0010] As the utility model discloses a stator protection structure preferably, the sealing power connection seat is internally fixed with a positioning convex strip matched with the positioning strip, the surface of the positioning convex strip is fixed with a blocking strip, and the blocking strip is in semicircular structure.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. By setting the cooperation of the protective cover, the movable buckle and the assembly hole, the stator core and the bare coil exposed outside the core framework can be effectively protected, thereby providing reliable physical protection for the stator core and the bare coil, avoiding damage caused by external collision and scratching and the like, ensuring that the insulation performance is always stable, avoiding serious safety hazards such as electric leakage caused by insulation damage, guaranteeing the quality and use safety of the product, greatly prolonging the service life of the stator core, reducing faults, and enhancing product reliability and durability.

[0013] 2. By setting the cooperation of the sealing power connection seat, the sealing plug and the lead terminal, the stability of the connection between the lead terminal and the sealing power connection seat can be ensured, the connection can not be loosened or poorly contacted due to external vibration, shaking and the like, the risk of accidental loosening of the power connection is greatly reduced, the continuous stability of power transmission is ensured, stable operation under different working environments and conditions can be ensured, the stability and reliability of the power connection are maintained, and the operation is simple and direct, without complex adjustment or additional tool assistance, so that the electrical connection operation is facilitated when the equipment is maintained, overhauled or replaced with parts, the maintainability and usability of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0015] Figure 1 It is the structure schematic view of the utility model whole;

[0016] Figure 2 It is the structure schematic view of the stator core and the protective cover in the utility model;

[0017] Figure 3 It is the structure schematic view of the sealing power connection seat and the sealing plug in the utility model;

[0018] Figure 4The utility model discloses a sectional view of the sealed power connection seat.

[0019] In the drawing: 1, stator core; 2, protective cover; 3, heat dissipation through hole; 4, movable buckle; 5, assembly hole; 6, positioning plug buckle; 7, sealed power connection seat; 9, sealed plug block; 10, power connection wire; 11, sealing ring; 12, lead terminal; 13, positioning strip; 14, positioning convex strip; 15, blocking strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of protection of the utility model.

[0021] As shown in the figure: Figure 1

[0022] A stator protection structure comprises a stator core 1 and a protective cover 2 arranged on the surface of the stator core 1.

[0023] As shown in the figure: Figures 1-4

[0024] In combination with the above, in order to effectively protect the stator core 1 and the enameled coil exposed outside the core framework, a plurality of groups of annular arrays of heat dissipation through holes 3 are arranged on the surface of the protective cover 2, a plurality of groups of annular arrays of movable buckles 4 are fixed to the outer wall of the protective cover 2, a plurality of groups of assembly holes 5 matched with the movable buckles 4 are arranged at the top end of the stator core 1, a positioning plug buckle 6 is fixed to the upper surface of the stator core 1, a positioning insertion hole matched with the positioning plug buckle 6 is arranged in the interior of the protective cover 2, a sealed power connection seat 7 is fixed to the surface of the protective cover 2, an enameled coil is wound in the interior of the stator core 1, a power connection wire 10 is connected to the power connection end of the enameled coil, a sealed plug block 9 is fixed to the surface of the power connection wire 10, a sealing insertion groove matched with the sealed plug block 9 is arranged in the interior of the sealed power connection seat 7, a plurality of groups of equidistantly arranged sealing rings 11 are fixed to the surface of the sealed plug block 9, a lead terminal 12 is fixed to one end of the sealed plug block 9, and the lead terminal 12 is connected with the power connection wire 10.

[0025] In combination with the above, in order to ensure the stability of the connection between the sealed power connection seat 7 and the power connection wire 10, a positioning strip 13 is fixed to the bottom end of the lead terminal 12, a sealing passage matched with the lead terminal 12 is arranged in the interior of the sealed power connection seat 7, a positioning convex strip 14 matched with the positioning strip 13 is fixed in the interior of the sealed power connection seat 7, a blocking strip 15 is fixed to the surface of the positioning convex strip 14, the blocking strip 15 has a semicircular structure, and the blocking strip 15 has elasticity.​​

[0026] The working principle and use process of the utility model: when using, by covering the protective cover 2 on the surface of the stator core 1, make the positioning plug buckle 6 insert into the positioning plug hole in the protective cover 2, realize the preliminary positioning of the stator core 1 and the protective cover 2, and can increase the consistency of the stator core 1 and the protective cover 2 assembly, so that the protective cover 2 can be accurately in place when installing, reduce the installation error, then, the movable buckle 4 is aligned with the assembly hole 5 at the top of the stator core 1 and is buckled, the stable connection of the protective cover 2 and the stator core 1 is completed, it is ensured that the protective cover 2 can effectively protect the stator core 1 and the enameled coil exposed outside the core framework, thereby providing reliable physical protection for the stator core 1 and the enameled coil, avoiding damage caused by external collision and scratching and other factors, ensuring that the insulation performance is always stable, avoiding serious safety hazards such as electric leakage caused by insulation damage, protecting the quality and use safety of the product, greatly prolonging the service life of the stator core 1, reducing the failure, enhancing the product reliability and durability.

[0027] It is worth noting that: the protective cover 2 is made of PBT and attached with 30% glass fiber material structure, which has high toughness, fatigue resistance, good mechanical properties such as tensile strength and bending strength, and can better cover the enameled coil exposed outside the framework by the top and outer wall of the protective structure, and the lead side framework is provided with a protruding enameled coil passage, which can avoid the risk of breaking the enameled coil or breaking the movable buckle 4 during assembly, and further improve the protection effect of the enameled coil.

[0028] Further, after completing the installation of the stator core 1 and the protective cover 2, the sealing plug 9 is inserted into the sealing slot of the sealing electrical connector 7, the sealing ring 11 is deformed under pressure during the insertion process, and is tightly attached to the inner wall surface of the sealing electrical connector 7, forming a reliable sealing structure, effectively preventing dust, moisture and other impurities from entering the inside of the sealing electrical connector 7, greatly improving the protection performance, ensuring the normal conduction of the power transmission line and the stable operation of the equipment, significantly preventing the invasion of moisture and dust, reducing the maintenance frequency and cost of equipment failure caused by equipment failure, preventing serious problems such as corrosion and electric leakage, ensuring the reliability and durability of electrical connection, avoiding the interference and damage of impurities to the precise electrical connection point, ensuring the stable contact and signal transmission between the electrical elements in the sealing electrical connector 7, reducing the phenomenon of signal anomaly or poor contact caused by impurities, and improving the stability and precision of the overall operation of the equipment.

[0029] With the insertion of the sealing plug 9, the lead terminal 12 can be inserted into the sealing passage in the sealing electrical connector 7, thereby realizing the fixed assembly of the lead terminal 12 and the sealing electrical connector 7. During the insertion of the lead terminal 12, the positioning strip 13 can slide along the surface of the positioning convex strip 14. When the end of the lead terminal 12 contacts the surface of the blocking strip 15, the blocking strip 15 can be compressed, thereby preventing the lead terminal 12 from being withdrawn, realizing the locking of the lead terminal 12 and the sealing electrical connector 7, effectively ensuring the stability of the connection between the lead terminal 12 and the sealing electrical connector 7, and greatly reducing the risk of accidental loosening of the electrical connection, ensuring the continuous stability of power transmission, and being simple and direct to operate, without the need for complex adjustment or additional tool assistance, facilitating the electrical connection operation during the maintenance, repair or replacement of parts of the equipment, improving the maintainability and usability of the equipment.

[0030] It is worth noting that the surface of the protective cover 2 is provided with a plurality of groups of annular array heat dissipation holes 3. In the working process of the stator core 1, the heat generated by the stator core 1 is dissipated in time by using the natural convection of air, avoiding the damage of heat accumulation to the stator core 1 and the internal enameled coil, protecting the stability of the stator core 1 in high temperature environment or high load operation, and ensuring the normal operation and service life of the stator core 1.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A stator protection structure, comprising a stator core (1) and a protective cover (2) disposed on the surface of the stator core (1), characterized in that: The protective cover (2) has several sets of heat dissipation holes (3) arranged in a ring array on its surface. The outer wall of the protective cover (2) is fixed with several sets of movable buckles (4) arranged in a ring array. The top of the stator core (1) has several sets of assembly holes (5) that are compatible with the movable buckles (4). The upper surface of the stator core (1) is fixed with a positioning buckle (6). The inside of the protective cover (2) is provided with a positioning hole that is compatible with the positioning buckle (6). The surface of the protective cover (2) is fixed with a sealing contact base (7).

2. The stator protection structure according to claim 1, characterized in that: The stator core (1) is wound with an enameled coil inside. The terminal of the enameled coil is connected to a connecting wire (10). A sealing plug (9) is fixed on the surface of the connecting wire (10), and a sealing slot adapted to the sealing plug (9) is opened inside the sealing connector (7).

3. The stator protection structure according to claim 2, characterized in that: The surface of the sealing plug (9) is fixed with several sets of sealing rings (11) arranged at equal intervals. One end of the sealing plug (9) is fixed with a lead terminal (12), and the lead terminal (12) is connected to the connecting wire (10).

4. The stator protection structure according to claim 3, characterized in that: The bottom end of the lead terminal (12) is fixed with a positioning strip (13), and the sealed electrical base (7) has a sealed passage adapted to the lead terminal (12) inside.

5. The stator protection structure according to claim 4, characterized in that: The sealed electrical base (7) has a positioning protrusion (14) that is compatible with the positioning strip (13) fixed inside. The surface of the positioning protrusion (14) has a blocking strip (15) fixed on it. The blocking strip (15) has a semi-circular structure.

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