Flat wire stator assembly structure

Abstract

A flat wire stator assembly structure relates to the technical field of motor stators and comprises a chain type base, iron cores and flat wire windings, the iron cores are fixedly arranged on the chain type base, the flat wire windings are detachably arranged on the iron cores, the chain type base comprises a plurality of base units which are integrally formed, the base units correspond to the iron cores one by one, and the base units are arranged on the chain type base. The base units at the head end and the tail end of the chain type base are provided with protrusions and grooves respectively. After the chain type base is rolled, the protrusions and the grooves of the base units at the head end and the tail end of the chain type base are matched, and the head end and the tail end of the chain type base are connected through welding. According to the scheme, in the whole assembly process, the multiple base units are rolled through equipment, then matched positioning is conducted through the protrusions and the grooves at the head end and the tail end, then welding connection is conducted, the structure is simple, only small-amplitude shaping is needed, large-scale welding is not needed, the technology is simpler and more convenient, cost is lower, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stators, in particular to a flat wire stator component structure. Background Art

[0002] The stator is the stationary part of a motor or generator. It consists of three parts: the stator core, stator windings, and the frame. The stator is used to generate a rotating magnetic field. The frame secures the stator core, and the stator windings are wound around it.

[0003] Traditional motors use closed stators, and the windings are complex to install into the stator core, making automated production lines difficult and resulting in extremely low production efficiency. To achieve automation, low-performance concentric flat wire winding structures must be used at the expense of efficiency and material.

[0004] With the improvement of stator production technology, chain-type machine bases have now appeared. The chain-type machine base connects each machine base by pivoting or hinged means. When in use, the stator winding is first wound onto the iron core on the base. After the winding is completed, the various parts are rotated to form the stator structure. This structure is too complicated and the production efficiency is not high enough. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] In view of the shortcomings of the existing technology, the utility model proposes a flat wire stator assembly structure with a simple structure that helps to improve production efficiency.

[0007] 2. Specific technical solutions

[0008] A flat wire stator assembly structure includes a chain base, an iron core, and a flat wire winding. The iron core is fixedly arranged on the chain base, and the flat wire winding is detachably arranged on the iron core. The chain base includes a plurality of integrally formed base units, each of which corresponds to the iron core one by one. The base units at the head and tail ends of the chain base are respectively provided with protrusions and grooves. After the chain base is rolled, the protrusions and grooves of the base units at the head and tail ends cooperate, and the head and tail ends of the chain base are connected by welding.

[0009] Implementation principle and working principle:

[0010] During processing, this solution first winds the flat wire winding into shape, then installs the flat wire windings one by one on the iron core of the chain base, and finally rolls and splices the chain base with the winding to complete the stator assembly. The flat wire winding of this structure is simple to wind, the wire diameter and number of turns are adjustable, the slot fill rate is high, and no complicated shaping and large-scale welding are required after assembly. At the same time, the base units at both ends of the chain base are matched with protrusions and grooves, making connection more convenient and quick. Compared with the hairpin motor, the overall structure and process are simpler, which can effectively reduce production costs and improve production efficiency.

[0011] As a preference: the iron core and the chain base are integrally formed, and the chain base is integrally formed as a whole; in this solution, the iron core and the chain base are integrally formed as a whole, which can effectively improve the overall integrity, make the structure simpler, and make production more convenient.

[0012] Preferably, there are 12 iron cores, and when the chain base is not rolled, the adjacent sides of the adjacent base units are V-shaped, and the angle between the adjacent sides is 10°~30°. The beneficial effect of this preferred embodiment is that the iron cores correspond to the base units one by one, and there are 12 corresponding base units. The setting of the angle between the two adjacent sides can make the chain base have better roundness after rolling, without the need for more shaping, and the production and processing are simpler.

[0013] Preferably, the cross section of the chain base after rolling is annular; the adjacent edges of the adjacent iron cores of the chain base (1) are parallel after rolling; the advantageous effect of this preferred embodiment is that the adjacent edges are parallel after rolling, which can ensure that the gaps between adjacent iron cores are consistent, and can ensure that the gaps between the various flat wire windings after the chain base is rolled are consistent or have sufficient gaps, thereby facilitating the installation of the flat wire windings.

[0014] Preferably, insulating blocks are provided on the iron cores; there are two insulating blocks provided on each group of iron cores, which are arranged along the width direction of the chain base, and the flat wire winding is sleeved on the iron cores after the insulating blocks are installed; the beneficial effect of this preferred embodiment is that the provision of insulating blocks can help maintain better stability of the motor composed of the flat wire stator assembly.

[0015] Preferably: the iron core extends to both sides at one end away from the base unit to form a limiting end, and the limiting end is used to limit the flat wire winding; the edge of the insulating block is rounded; the beneficial effect of this preferred embodiment is: the rounded edge of the insulating block can avoid damage to the flat wire winding when the flat wire winding is installed, and the setting of the limiting end can limit the flat wire winding and effectively prevent it from falling off.

[0016] The beneficial effects of the utility model are:

[0017] 1. In this solution, the multiple base units and the iron core of the chain base are all integrally formed, which is simple and convenient to produce. There is enough space for winding the flat wire winding of this structure, which is easy to operate, and the wire diameter and number of turns are adjustable, with a high slot fill rate. During the overall assembly, it is only necessary to use equipment to roll the multiple base units into a circle, and then position them through the protrusions and grooves at the head and tail ends, and then connect them by welding. The structure is simple and only requires minor shaping, and no large amount of welding is required. The process is simpler and more convenient, with lower costs and higher efficiency.

[0018] 2. By setting the parameters of this number of base units and their adjacent base units, the chain base can achieve better roundness and less shaping work. The parallelism between the side walls of the iron core after rolling can ensure better installation consistency of each flat wire winding. The setting of the insulating block can ensure better stability of the motor made with this stator, and the limit end at the end of the iron core can play a good role in limiting the flat wire winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the flat wire stator assembly of the present invention when it is rolled into a circle.

[0020] Figure 2 This is an exploded schematic diagram of the flat wire stator assembly of the present invention.

[0021] Figure 3 This is an enlarged schematic diagram of the position of the flat wire stator assembly A of the present invention.

[0022] Figure 4 This is an enlarged schematic diagram of the position of the flat wire stator assembly B of the present invention

[0023] Description of reference numerals:

[0024] Chain base 1, iron core 2, flat wire winding 3, base unit 4, protrusion 5, groove 6, insulating block 7, and limit end 8. DETAILED DESCRIPTION

[0025] The following detailed description of the preferred embodiments of the present invention is provided in conjunction with the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art, thereby more clearly defining the scope of protection of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0026] like Figure 1 -Attached Figure 4 As shown:

[0027] A flat wire stator assembly structure includes a chain base 1, an iron core 2, and a flat wire winding 3. The chain base 1 is integrally formed from a plurality of base units 4, which may be formed by die-casting or other methods. Specifically, the base units 4 at the leading and trailing ends of the chain base 1 are integrally formed with protrusions 5 and grooves 6 on opposite sides thereof, wherein the protrusions 5 and grooves 6 cooperate with each other.

[0028] During implementation, the iron core 2 is integrally formed on the corresponding base unit 4, wherein the number of the iron cores 2 and the base units 4 is the same and corresponds one to one, wherein the cross-sections of the iron core 2 and the base unit 4 are both fan-shaped; during implementation; during implementation, the flat wire winding 3 is specifically formed by winding the flat wire, and there are two ways to set up the flat wire winding 3, one is to directly wind it on the iron core 2, and the other is to first wind it to form a winding and then put it on the iron core 2.

[0029] When implementing, if Figure 4 In order to prevent the flat wire winding 3 from falling off the iron core, the iron core 2 is formed with a limiting end 8 on the side away from the base unit 4. The limiting end is specifically formed by the iron core 2 extending to both sides.

[0030] Specifically, in order to prevent the flat wire winding 3 from causing leakage and other factors that affect the performance of the motor it forms, each base unit 4 is provided with insulating blocks 7 at both ends in the width direction of the chain base 1. In order to prevent the flat wire winding 3 from being worn, the edges of the insulating blocks 7 are rounded.

[0031] Specifically, when winding the flat wire stator assembly, the insulating blocks 7 are first bonded to both sides of the iron core 2. In this embodiment, the flat wire winding 3 is first wound, and the formed flat wire winding 3 is successively installed on the iron core 2 with the insulating blocks 7, and then the chain base 1 is rolled up. After rolling up, the protrusions 5 and grooves 6 of the base units at the head and tail ends match and are welded together; during implementation, in order to make the rolling of the chain base 1 smoother; in this embodiment, the number of iron cores 2 and base units 4 is preferably 12, and the two adjacent sides of adjacent base units 4 are V-shaped, wherein the angle between the two adjacent sides is specifically 10°~30°, and in this embodiment it is specifically 30°. After the winding is completed, in order to make the gap between the two adjacent iron cores 2 consistent and convenient to install, the two adjacent sides of the adjacent iron cores 2 are parallel.

[0032] The present invention provides a flat wire stator assembly structure, in which the multiple base units 4 and the iron core 2 of the chain base 1 are integrally formed, which is simple and convenient to produce. The flat wire winding 3 of this structure has sufficient space for winding, is easy to operate, and the wire diameter and number of turns are adjustable, with a high slot fill rate. During the overall assembly, it is only necessary to use equipment to roll the multiple base units 4 into a circle, and then position them by matching the protrusions 5 and grooves 6 at the head and tail ends, and then connect them by welding. The structure is simple and only requires minor shaping, and no large amount of welding is required. The process is simpler and more convenient, with lower costs and higher efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims.

Claims

1. A flat wire stator assembly structure, comprising a chain base (1), an iron core (2) and a flat wire winding (3), wherein the iron core (2) is fixedly arranged on the chain base (1), and the flat wire winding (3) is detachably arranged on the iron core (2), characterized in that: The chain base (1) comprises a plurality of integrally formed base units (4), the base units (4) corresponding to the iron core (2) one by one, and a protrusion (5) and a groove (6) are respectively provided on the base units (4) at the head and tail ends of the chain base (1); after the chain base (1) is rolled, the protrusions (5) and the grooves (6) of the base units (4) at the head and tail ends cooperate, and then the head and tail ends of the chain base (1) are connected by welding.

2. The flat wire stator assembly structure according to claim 1, characterized in that: The iron core (2) and the chain base (1) are integrally formed.

3. The flat wire stator assembly structure according to claim 2, characterized in that: There are 12 iron cores (2), and when the chain base (1) is not rolled, the adjacent sides of the adjacent base units (4) are V-shaped, and the angle between the adjacent sides is 10° to 30°.

4. The flat wire stator assembly structure according to claim 3, characterized in that: The cross section of the chain base (1) after being rolled into a circle is in the shape of a ring; and the adjacent sides of the adjacent iron cores (2) of the chain base (1) after being rolled into a circle are parallel.

5. The flat wire stator assembly structure according to claim 1, characterized in that: The iron cores (2) are all provided with insulating blocks (7); there are two insulating blocks (7) provided on each group of iron cores (2), which are arranged along the width direction of the chain base (1); and the flat wire winding (3) is sleeved on the iron cores (2) after the insulating blocks (7) are installed.

6. The flat wire stator assembly structure according to claim 5, characterized in that: The iron core (2) extends toward both sides at one end away from the base unit (4) to form a limiting end (8), and the limiting end (8) is used to limit the flat wire winding (3).

7. The flat wire stator assembly structure according to claim 5, characterized in that: The edges of the insulating block (7) are rounded.

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