Flat wire type stator assembly

Abstract

The utility model provides a flat wire type stator assembly, comprising a stator iron core, the stator iron core is composed of a plurality of iron core sheets, the outer side of the stator iron core is provided with a plurality of cooling grooves, the cooling grooves are arranged in an annular array, the outer side of the stator iron core is also provided with positioning ribs, and the positioning ribs are used for cooperating and limiting with a motor casing. In the operation process of the motor, air flow passes through the cooling grooves to cool the stator iron core, so that the overheating problem of the stator iron core is reduced, and the circumferential movement of the stator iron core in the motor shell is limited through the point position convex edges.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motor especially relates to a flat wire type stator assembly. BACKGROUND

[0002] At present, the Chinese patent with the announcement number CN220325350U discloses a stator assembly and flat wire motor, wherein the stator assembly includes a stator core and a plurality of flat wire conductors, the inner wall surface of the stator core is uniformly provided with a plurality of stator slots, the plurality of stator slots are arranged obliquely along the radial direction and obliquely along the axial direction; the plurality of flat wire conductors are embedded in each stator slot and connected with each other to form a coil winding, and the above-mentioned stator assembly can reduce the cogging torque, thereby enabling the motor to operate more stably.

[0003] The above-mentioned patent still has the following problems: the stator core of the above-mentioned patent directly contacts the motor shell, and can only be cooled through the motor shell and the fins outside the shell, so the cooling capacity of the stator core is poor. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims to provide a flat wire type stator assembly which has the advantages of good heat dissipation performance.

[0005] In order to solve the above-mentioned technical problems, the technical scheme of the utility model is as follows: a flat wire type stator assembly includes a stator core, the stator core is composed of a plurality of core pieces, a plurality of cooling grooves are formed on the outer side of the stator core, the cooling grooves are arranged in a ring array, and a positioning convex rib is arranged on the outer side of the stator core, the positioning convex rib is used for cooperating with the motor shell to limit the position.

[0006] Through the above-mentioned technical means, the cooling grooves are arranged to enable the motor to be cooled through the airflow through the cooling grooves during operation, thereby reducing the overheating problem of the stator core, and the positioning convex rib limits the circumferential movement of the stator core in the motor shell.

[0007] Preferably, insulating frames one and two are arranged at the two ends of the stator core respectively, a positioning hole is formed through the positioning convex rib, the insulating frames one and two are fixed through the positioning hole, and a plurality of wire end holes are formed in the insulating frame one.

[0008] Through the above-mentioned technical means, the insulating frames one and two are arranged, and the wire end holes are formed, thereby positioning and insulating the enameled wires led out of the stator core, and increasing the insulation of the motor.

[0009] Preferably, a wire end groove is further formed in the insulating frame one, and the wire end groove is arranged at the side end of the wire end hole and communicates with the wire end hole.

[0010] Through the technical means, the enameled wire is guided to the same position through the wire end slot, so that the subsequent installation of the enameled wire is facilitated.

[0011] Preferably, rubber sleeves are arranged in the wire end holes, and countersunk holes are arranged at the two ends of the wire end holes, and the rubber sleeves are provided with fixing rings at the two ends, and the fixing rings are clamped in the countersunk holes.

[0012] Through the technical means, the rubber sleeves are fixed in the wire end holes through the cooperation of the fixing rings and the countersunk holes, so that the insulation effect can still be achieved after the enameled wire is pulled out and the skin is removed.

[0013] Preferably, mounting columns one and two are arranged on the insulation frames one and two respectively, and the ends of the mounting columns one and two are provided with fixing assemblies, and the fixing assemblies are used for fixing the insulation frames one and two on the stator core.

[0014] Through the technical means, the mounting columns one and two are connected to each other through the fixing assemblies, and the stator core is clamped, so that the purposes of fixing the insulation frames one and two are achieved.

[0015] Preferably, the fixing assembly comprises an inclined head pin, the end of the mounting column one is provided with a plug rod, the end of the mounting column two is provided with a plug hole, the plug rod and the plug hole are in sliding cooperation, a lock hole one is arranged at the side end of the plug hole, a lock hole two is arranged at the side end of the plug rod, and the ends of the lock hole one, the lock hole two and the inclined head pin are in conical type.

[0016] Through the technical means, when the inclined head pin is inserted into the lock hole one and the lock hole two, the plug rod and the plug hole are locked and the insulation frames one and two clamp the stator core, so that the stator core is fixed and the iron core pieces are more closely adhered, thereby increasing the stacking factor of the stator core.

[0017] Preferably, a pin piece is further press-fitted in the cooling groove, and the pin piece abuts against the two end faces of the cooling groove and forms a cooling cavity.

[0018] Through the technical means, the cooling groove is aligned through the arrangement of the pin piece, so that the precision between the iron core pieces is increased, and the cooling effect of the cooling groove is not reduced.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1. Through the arrangement of the cooling groove, the stator core is cooled through the airflow through the cooling groove in the running process of the motor, so that the overheating problem of the stator core is reduced, and the cooling groove is aligned through the arrangement of the pin piece, so that the precision between the iron core pieces is increased, and the cooling effect of the cooling groove is not reduced.

[0021] 2. Lock the stator core by inserting rods and inserting holes, and clamp the first and second insulating frames together. While fixing the first and second insulating frames, make the iron chips fit more tightly, thereby increasing the stacking coefficient of the stator core. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0023] Figure 2 for Figure 1 Schematic diagram of Part A;

[0024] Figure 3 This is a cross-sectional schematic diagram of an embodiment;

[0025] Figure 4 for Figure 3 Schematic diagram of Part B;

[0026] Figure 5 for Figure 3 A schematic diagram of section C.

[0027] Reference numerals in the attached diagram: 1. Stator core; 2. Cooling groove; 3. Positioning protrusion; 4. Insulating frame one; 5. Insulating frame two; 6. Positioning hole; 7. Wire end hole; 8. Rubber sleeve; 9. Countersunk hole; 10. Retaining ring; 11. Wire end groove; 12. Mounting post one; 13. Mounting post two; 14. Fixing assembly; 15. Angled pin; 16. Insert rod; 17. Insertion hole; 18. Locking hole one; 19. Locking hole two; 20. Pin; 21. Cooling chamber. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0029] A flat-wire stator assembly includes a stator core 1, which is composed of several iron chips. Several cooling grooves 2 are formed on the outer side of the stator core 1, and the cooling grooves 2 are arranged in a ring array. A positioning protrusion 3 is also provided on the outer side of the stator core 1. A groove that cooperates with the positioning protrusion 3 is provided in the motor housing, thereby restricting the circumferential movement of the stator core 1 in the motor housing. When the stator core 1 is installed in the motor housing, a channel is formed between the motor housing and the cooling grooves 2. When the rotor rotates, it can drive airflow through the cooling grooves 2 and cool the stator core 1, reducing the overheating problem of the stator core 1.

[0030] Insulating frame one 4 and insulating frame two 5 are arranged at both ends of stator core 1 respectively, positioning protrusions 3 are provided with positioning holes 6, positioning holes 6 are arranged at the end faces of positioning protrusions 3, the thickness of stator core 1 is reduced as much as possible, insulating frame one 4 and insulating frame two 5 are fixed through positioning holes 6, a plurality of wire end holes 7 are arranged on insulating frame one 4, wire end holes 7 are used for positioning and insulating the lead-out enameled wires on stator core 1, thereby increasing the insulation of the motor.

[0031] Rubber sleeves 8 are arranged in wire end holes 7, counterbore holes 9 are arranged at both ends of wire end holes 7, fixed rings 10 are arranged at both ends of rubber sleeves 8, fixed rings 10 are clamped in counterbore holes 9, when installing, fixed rings 10 at one end of rubber sleeves 8 are deformed by extrusion, thereby installing rubber sleeves 8, through the cooperation of fixed rings 10 and counterbore holes 9, rubber sleeves 8 are fixed in wire end holes 7, thereby achieving the insulation effect when the lead-out enameled wires are peeled, wire end grooves 11 are further arranged on insulating frame one 4, wire end grooves 11 are arranged at the side ends of wire end holes 7 and communicate with wire end holes 7, different enameled wire ends are guided to the same position through wire end grooves 11, thereby facilitating the subsequent connection of enameled wires into the motor box.

[0032] Insulating frame one 4 and insulating frame two 5 are respectively provided with mounting column one 12 and mounting column two 13, the end portions of mounting column one 12 and mounting column two 13 are provided with fixed assemblies 14, fixed assemblies 14 are used for fixing insulating frame one 4 and insulating frame two 5 on stator core 1, fixed assemblies 14 include inclined head pins 15, the end portion of mounting column one 12 is provided with a plug rod 16, the end portion of mounting column two 13 is provided with a plug hole 17, plug rod 16 and plug hole 17 are slidingly matched, the side end of plug hole 17 is provided with a lock hole one 18, the side end of plug rod 16 is provided with a lock hole two 19, the end portions of lock hole one 18, lock block two and inclined head pin 15 are all conical, when insulating frame one 4 and insulating frame two 5 need to be installed, they are arranged at both sides of stator core 1 respectively, and plug rod 16 is inserted into plug hole 17, and then inclined head pin 15 is inserted into lock hole one 18 and lock hole two 19 and knocked tightly, so that the inclined head portion of inclined head pin 15 cooperates with the inclined portion of lock hole two 19, thereby clamping insulating frame one 4 and insulating frame two 5 to the core pieces, while fixing insulating frame one 4 and insulating frame two 5, the stacking factor of stator core 1 is increased.

[0033] Pin plates 20 are further press-fitted in cooling grooves 2, pin plates 20 abut on the end faces of cooling grooves 2 and form cooling cavities 21, pin plates 20 are hammered into cooling grooves 2 through rubber hammers, and after being hammered, pin plates 20 are deformed and fixed in cooling grooves 2, through the arrangement of pin plates 20, cooling grooves 2 are aligned, thereby increasing the precision when the core pieces are stacked, and ensuring that the cooling effect of cooling grooves 2 will not be reduced.

[0034] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A flat wire type stator assembly comprising a stator core (1) consisting of a number of core pieces, characterized in that: The stator core (1) is provided with a plurality of cooling grooves (2) outside, the cooling grooves (2) are arranged in an annular array, and the stator core (1) is further provided with a positioning convex rib (3) outside, which is used for cooperating with the motor shell for limiting.

2. A flat wire type stator assembly according to claim 1, characterized in that: The stator core (1) is provided with an insulation frame one (4) and an insulation frame two (5) at both ends, respectively, the positioning convex rib (3) is provided with a positioning hole (6) penetratingly arranged, the insulation frame one (4) and the insulation frame two (5) are fixed through the positioning hole (6), and the insulation frame one (4) is provided with a plurality of wire end holes (7).

3. A flat wire stator assembly according to claim 2, wherein: The insulation frame one (4) is further provided with a wire end groove (11), which is arranged at the side end of the wire end hole (7) and communicates with the wire end hole (7).

4. A flat wire stator assembly according to claim 2, wherein: The wire end hole (7) is provided with a rubber sleeve (8) inside, the wire end hole (7) is provided with a countersunk hole (9) at both ends, and the rubber sleeve (8) is provided with a fixing ring (10) at both ends, and the fixing ring (10) is clamped in the countersunk hole (9).

5. A flat wire stator assembly as set forth in claim 2 wherein: The insulation frame one (4) and the insulation frame two (5) are respectively provided with a mounting column one (12) and a mounting column two (13), and the end portions of the mounting column one (12) and the mounting column two (13) are provided with a fixing assembly (14), which is used for fixing the insulation frame one (4) and the insulation frame two (5) on the stator core (1).

6. A flat wire stator assembly according to claim 5, characterized in that: The fixing assembly (14) comprises a skew head pin (15), the end portion of the mounting column one (12) is provided with a plug rod (16), the end portion of the mounting column two (13) is provided with a plug hole (17), the plug rod (16) and the plug hole (17) are in sliding cooperation, the side end of the plug hole (17) is provided with a lock hole one (18), the side end of the plug rod (16) is provided with a lock hole two (19), and the end portions of the lock hole one (18), the lock block two and the skew head pin (15) are all in conical type.

7. A flat wire stator assembly as set forth in claim 1 wherein: The cooling groove (2) is further press-fitted with a pin plate (20), and the pin plate (20) abuts against both end faces of the cooling groove (2) and forms a cooling cavity (21).

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