CN216618121U - Flexible connection device of long iron core - Google Patents

Abstract

The application discloses flexible connection device of elongated iron core relates to the field that the iron core is connected, and it includes the iron core buttress, sets up the winding on the iron core buttress, and the iron core buttress has at least two, inserts between the iron core buttress and is equipped with the connecting block, and the both sides wall difference butt of connecting block is on two adjacent iron core buttress lateral walls that are close to each other. This application is through inserting the establishment connecting block between two adjacent iron core buttress, thereby the winding straightens, stably connect two iron core buttress, the later stage is whole to soak the lacquer design, the connecting block system is inserted and is established, the thickness of connecting block can be adjusted according to the tolerance of iron core buttress actual processing, and according to total size requirement, draught area, connect rigidity requirement adjustment connecting block material, circumference number, the shape, the width, isoparametric, it leads to the iron core axiality owing to the stack of machining error to have to improve the iron core buttress connection back, the parallel degree worsens the problem, improve the whole size precision of iron core product that the iron core buttress connection formed, promote product quality and life's effect.

Description

Flexible connection device of long iron core

Technical Field

The application relates to the field of iron core connection, in particular to a flexible connection device for a long iron core.

Background

At present, various methods are adopted for forming the iron core, such as buckling, riveting or gluing after stamping, or cutting after gluing; for the iron core with cooling jacket, in order to reduce heat transfer resistance, the surface roughness requirement and the dimensional accuracy can be improved by adopting a shape grinding mode. Wherein the cutting and grinding shapes are influenced by the length size or the length-diameter ratio of the iron core. For thin silicon steel sheets, the number of insulating layers is larger, the relative thickness ratio is higher, and the thin silicon steel sheets are more difficult to cut, the linear cutting is generally carried out, the cutting stack cannot be higher than 100mm, and other cutting modes have the limitation. For grinding, the tool is usually in a mode that two end planes are clamped, or a mandrel is matched after the tool is clamped, and the grinding is in a mode that a molded surface applies force vertically, and the tool can be installed only by reserving a certain gap due to assembly requirements, so that when the length and diameter of an iron core are large, the clamping force at two ends of the tool is difficult to control the bending deformation of the iron core in the grinding process, and the grinding precision is lost.

In order to overcome the troubles of the long iron core in the processing of cutting, grinding and the like, the iron core is processed in a segmented mode in the related technology and then connected by using laminated plates or connected by using a laminated plate frame with an air cooling channel.

Aiming at the related technologies, the inventor finds that the flatness of the laminated plate is controlled by the precision of machining, the outer shape coaxiality, the two sections of parallelism and the like cannot be adjusted when the laminated plate is placed in the middle of an iron core stack, and the coaxiality and the parallelism of the iron core are easily deteriorated due to the superposition of machining errors after the two sections of iron cores are connected; meanwhile, because the rigidity of the connecting laminated plate is high, when the whole size precision of two or more sections of iron cores is poor after the connecting laminated plate is connected, and the stress direction is not uniform or vibration is generated under alternating load, the laminated plate is likely to crack, so that the product quality and the service life of the iron core are influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides a flexible connection device of an elongated iron core.

The application provides a flexible connection device of elongated iron core adopts following technical scheme:

the utility model provides a flexible connection device of elongated iron core, includes the iron core buttress, sets up the winding on the iron core buttress, the iron core buttress has at least two, it is equipped with the connecting block to insert between the iron core buttress, the both sides wall butt respectively of connecting block is adjacent two on the lateral wall that the iron core buttress is close to each other.

Through adopting above-mentioned technical scheme, a plurality of iron core buttress are being connected to the winding, and both ends after linking to each other with a plurality of iron core buttress are fixed mutually, insert between two adjacent iron core buttress and establish the connecting block, thereby straighten the winding, stably connect two iron core buttress, the whole dip coating design in later stage, the connecting block system is inserted and is established, the thickness of connecting block can be adjusted according to the tolerance of iron core buttress actual processing, and according to total size requirement, draught area, connect rigidity requirement adjustment connecting block material, circumference number, the shape, the width, isoparametric, improve the iron core buttress and connect the back and lead to the iron core axiality because the stack of machining error, the depth of parallelism variation problem, improve the whole size precision of the iron core product that the iron core buttress connection formed, promote the quality and the life of product.

Optionally, a plurality of the connecting blocks are arranged at intervals, and a cooling channel is formed between the side walls of two adjacent connecting blocks which are close to each other.

By adopting the technical scheme, the cooling channel is added between the iron core stacks, so that the heat dissipation efficiency of the manufactured iron core product is improved, and the product quality is improved. In addition, in the initial stage of research and development, if cooling channels are added among the iron cores, the number, the flow area and the like of the cooling channels need to be adjusted according to the test, various forms of tests need to be processed, and the mode of inserting a plurality of connecting blocks can realize rapid test, improve the research and development rate and reduce the cost.

Optionally, the connecting block is used for forming two side walls of the cooling channel, and ventilation inclined planes inclined along the radial direction of the iron core stack are formed on the two side walls of the cooling channel.

Through adopting above-mentioned technical scheme, set up along the radial inclined ventilation inclined plane of iron core buttress can be under the circumstances of guaranteeing joint strength, leave cooling channel as far as possible.

Optionally, the intervals between two adjacent connecting blocks are equal.

Through adopting above-mentioned technical scheme, the connection stability between the iron core buttress can be improved to the connecting block that sets up evenly spaced ground.

Optionally, a winding slot for mounting the winding is formed in the iron core stack, and the slot width of the winding slot is gradually reduced from the slot bottom to the slot opening.

Through adopting above-mentioned technical scheme, set up the winding groove of throat, better hold the winding, if the opening is great, the coil that is close to the notch breaks away from the winding groove easily.

Optionally, two side walls of the open end of the winding slot extend oppositely to form a limiting flange.

By adopting the technical scheme, the winding is further limited and structured, and the requirements of high-end products are met.

Optionally, the connecting block is kept away from the one end of iron core buttress the central axis be formed with the laminating cambered surface of iron core buttress outer peripheral wall parallel and level.

Through adopting above-mentioned technical scheme, set up the laminating cambered surface, make the outer wall of connecting block and the outer peripheral wall parallel and level of iron core buttress mutually, make things convenient for the whole dip coating in later stage to finalize the design, further promote product quality.

Optionally, one end of the connecting block facing the central axis of the iron core stack is provided with a chamfer.

Through adopting above-mentioned technical scheme, can prevent that the connecting block from wearing and tearing the winding towards the tip of iron core piece, also can make the assembly easier.

Optionally, the connecting block is made of epoxy resin.

By adopting the technical scheme, the epoxy resin has the characteristics of impact resistance and good toughness, the epoxy resin production process is mature, the connection block is easily manufactured by linear cutting or common machine tool processing of the epoxy resin plate, the practicability is high, and the production cost is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

the connecting blocks are inserted between two adjacent iron core stacks, so that a winding is straightened, the two iron core stacks are stably connected, the later-stage integral paint dipping and shaping are realized, the connecting blocks are inserted, the thickness of the connecting blocks can be adjusted according to the actual processing tolerance of the iron core stacks, and the material, the circumferential number, the shape, the width and other parameters of the connecting blocks are adjusted according to the requirements of the total size, the ventilation area and the connection rigidity, so that the problems of the deterioration of the coaxiality and the parallelism of the iron cores caused by the superposition of processing errors after the iron core stacks are connected are solved, the integral size precision of iron core products formed by the connection of the iron core stacks is improved, and the quality and the service life of the products are improved;

the connecting blocks arranged at intervals are used for adding cooling channels between the iron core stacks, so that the heat dissipation efficiency of the manufactured iron core product is improved, and the product quality is improved. In addition, in the initial stage of research and development, if cooling channels are added among the iron cores, the number, the flow area and the like of the cooling channels need to be adjusted according to the test, various forms of tests need to be processed, and the mode of inserting a plurality of connecting blocks can realize rapid test, improve the research and development rate and reduce the cost;

by arranging the ventilation inclined plane inclined along the radial direction of the iron core stack, a cooling channel can be reserved as far as possible under the condition of ensuring the connection strength.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a schematic structural view of a core stack in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a connecting block in the embodiment of the present application.

Reference numerals: 1. stacking the iron cores; 2. a winding; 3. connecting blocks; 4. a cooling channel; 5. a ventilation ramp; 6. a winding slot; 7. limiting and blocking edges; 8. fitting the cambered surface; 9. and (6) chamfering.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a flexible connection device of a long iron core.

Referring to fig. 1, a flexible connection device for a long iron core includes an iron core stack 1 and a winding 2 (the winding is composed of a plurality of wire coils, and the number of the winding is shown in the figure) wound on the iron core stack 1, the number of the iron core stacks 1 is at least two, and the winding 2 is connected with the plurality of iron core stacks 1 and fixed to both ends of the iron core stacks 1 after being connected with each other. And connecting blocks 3 are inserted between the iron core stacks 1, and the connecting blocks 3 are formed by cutting epoxy resin plates. The both sides wall of connecting block 3 butt respectively on the mutual lateral wall that is close to of two adjacent iron core buttress 1 to the winding 2 that straightens stably connects two iron core buttress 1, and later stage is whole to dip in lacquer and is stereotyped.

Referring to fig. 1 and 2, a winding slot 6 is formed in the core stack 1 to receive the winding 2, and the width of the winding slot 6 is gradually reduced from the bottom of the slot to the top of the slot to prevent the coil near the slot from being separated from the winding slot 6. Two side walls of the opening end of the winding slot 6 extend oppositely to form a limiting flange 7, and the regular winding 2 is further limited by the limiting flange 7.

Referring to fig. 1 and 3, a plurality of connecting blocks 3 are provided, the plurality of connecting blocks 3 are uniformly inserted along the circumferential direction of a plane where another iron core stack 1 is connected, and a cooling channel 4 is formed between the side walls of two adjacent connecting blocks 3 which are close to each other. The both sides wall that connecting block 3 is used for forming cooling channel 4 all is formed with along the radial inclined ventilation inclined plane 5 of 1 radial slope of iron core buttress, under the circumstances of guaranteeing joint strength, reserves as big as possible cooling channel 4, improves the radiating efficiency of the iron core product that makes, promotes product quality and life.

Further, the end of the connecting block 3 facing the central axis of the core stack 1 is formed with a chamfer 9, which makes it easier to insert (knock-insert) the connecting block 3 between the core stacks 1 and also prevents the end of the connecting block 3 facing the core blocks from wearing the winding 2. Connecting block 3 keeps away from the one end of 1 the central axis of iron core buttress and is formed with the laminating cambered surface 8 with 1 outer peripheral wall parallel and level of iron core buttress, can make connecting block 3's outer wall and 1 outer peripheral wall parallel and level of iron core buttress, makes things convenient for the whole dip coating in later stage to finalize the design, further promotes product quality.

The implementation principle of the flexible connecting device for the long iron core in the embodiment of the application is as follows: winding 2 is connecting a plurality of iron core buttress 1, and both ends after linking to each other with a plurality of iron core buttress 1 are fixed mutually, insert between two adjacent iron core buttress 1 and establish connecting block 3, thereby straighten winding 2, stably connect two iron core buttress 1, the whole paint dipping design in later stage, connecting block 3 is inserting and establishes, connecting block 3's thickness can be adjusted according to the tolerance of iron core buttress 1 actual processing, and according to total dimensional requirement, draught area, connect rigidity requirement adjustment connecting block 3 material, circumference number, the shape, the width, isoparametric, improve iron core buttress 1 and connect the back and lead to the iron core axiality owing to the stack of machining error, the depth of parallelism variation problem, improve the whole size precision of the iron core product that iron core buttress 1 connects the formation, promote the quality and the life of product.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a flexible connection device of elongated iron core, includes iron core buttress (1), sets up winding (2) on iron core buttress (1), its characterized in that: the iron core buttress (1) has at least two, it is equipped with connecting block (3) to insert between iron core buttress (1), the both sides wall of connecting block (3) butt respectively adjacent two on the lateral wall that iron core buttress (1) is close to each other.

2. A flexible connection means for an elongated core according to claim 1, characterized in that: the connecting blocks (3) are arranged at intervals, and a cooling channel (4) is formed between the side walls, close to each other, of the two adjacent connecting blocks (3).

3. The flexible connection means of an elongated core of claim 2, wherein: and two side walls of the connecting block (3) for forming the cooling channel (4) are provided with ventilation inclined planes (5) which are inclined along the radial direction of the iron core stack (1).

4. A flexible connection means for an elongated core according to claim 2, characterized in that: the intervals between two adjacent connecting blocks (3) are equal.

5. A flexible connection means for an elongated core according to claim 1, characterized in that: the iron core buttress (1) is last to be formed with and to be used for the installation wire winding groove (6) of winding (2), the groove width of wire winding groove (6) is dwindled by tank bottom to notch gradually.

6. The flexible connection means of an elongated core of claim 5, wherein: two side walls of the opening end of the winding groove (6) extend oppositely to form a limiting flange (7).

7. A flexible connection means for an elongated core according to claim 1, characterized in that: keep away from connecting block (3) the one end of iron core buttress (1) the central axis be formed with laminating cambered surface (8) that iron core buttress (1) peripheral wall is parallel and level.

8. A flexible connection means for an elongated core according to claim 1, characterized in that: the connecting block (3) faces one end of the central axis of the iron core stack (1) and is provided with a chamfer (9).

9. A flexible connection means for an elongated core according to claim 1, characterized in that: the connecting block (3) is made of epoxy resin.

Images