Detection tool for detecting outer diameter size of winding of flat wire stator assembly

Abstract

The utility model provides a testing fixture for testing the outer diameter size of a flat wire stator assembly winding, which comprises a testing fixture body, the testing fixture body is provided with an inner cylindrical surface, and the inner diameter size of the inner cylindrical surface is configured to be the maximum allowable value of the outer diameter size of the flat wire stator assembly winding. According to the testing fixture for testing the outer diameter size of the flat wire stator assembly winding, the testing fixture body is provided with the inner cylindrical surface, the inner diameter size of the inner cylindrical surface is configured to be the maximum allowable value of the outer diameter size of the flat wire stator assembly winding, and the inner cylindrical surface of the testing fixture body copies the outer diameter size of the flat wire stator assembly winding, so that the measurement accuracy is high; and the consistency is high. During use, whether the size of the outer diameter assembly of the winding is qualified or not can be judged only by sleeving the testing fixture into the to-be-tested flat wire stator assembly winding, so that the measurement operation can be simplified, and the measurement efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a checking tool for checking the outer diameter size of a flat wire stator assembly winding. Background Art

[0002] Compared with traditional round wire motors, current flat wire motors have the advantages of higher slot fill rate, better temperature performance and wider high efficiency range. Their windings are generally made of several square conductors connected by welding. The windings of flat wire stator assemblies are stronger and have better shaping ability, and do not need to be shaped like the windings of round wire stator assemblies.

[0003] When driving the production of the stator assembly of the motor, the outer diameter of the winding of the stator assembly needs to be controlled within the design size. Existing solutions all use a vernier caliper to measure the outer diameter of the winding, using a dense point measurement method.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art: the vernier caliper is used to measure the outer diameter of the winding, which requires a high measurement technique. The landing point of the jaws and the shaking of the technique during measurement affect the measurement results. There is a quality risk of misjudging the winding size of the stator assembly, and the measurement is time-consuming. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] Therefore, the purpose of the utility model is to provide a checking fixture for checking the outer diameter size of the flat wire stator assembly winding, so as to improve the detection efficiency and the measurement accuracy.

[0007] To achieve the above purpose, the utility model proposes a gauge for inspecting the outer diameter size of a flat wire stator assembly winding, comprising: a gauge body, the gauge body having an inner cylindrical surface, the inner diameter size of the inner cylindrical surface is configured as the maximum allowable value of the outer diameter size of the flat wire stator assembly winding.

[0008] According to the inspection tool for checking the outer diameter size of the flat wire stator assembly winding of the utility model, the inspection tool body has an inner cylindrical surface, the inner diameter size of the inner cylindrical surface is configured as the maximum allowable value of the outer diameter size of the flat wire stator assembly winding, and the inner cylindrical surface of the inspection tool body imitates the outer diameter size of the flat wire stator assembly winding, with high measurement accuracy and high consistency. When in use, it is only necessary to insert the inspection tool into the flat wire stator assembly winding to be inspected to determine whether the outer diameter assembly size of the winding is qualified, thereby simplifying the measurement operation and improving the measurement efficiency.

[0009] According to an embodiment of the present invention, the gauge body has an end surface, which is perpendicular to the inner cylindrical surface and is configured to contact the end surface of the iron core of the flat wire stator assembly.

[0010] According to an embodiment of the utility model, the number of the end faces is two, the two end faces are parallel, and the distance between the two end faces is configured as the standard height of the flat wire stator assembly winding.

[0011] According to an embodiment of the present utility model, the gauge body has an outer side surface, and a handle is provided on the outer side surface.

[0012] According to an embodiment of the present invention, the material of the gauge body is bakelite.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only used for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0015] Figure 1 The utility model is a schematic diagram of the structure of a checking fixture for checking the outer diameter size of a flat wire stator assembly winding according to an embodiment of the utility model.

[0016] Figure 2 The utility model is a schematic structural diagram of a checking fixture for checking the outer diameter size of a flat wire stator assembly winding according to an embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 10-gauge body, 11-inner cylindrical surface, 12-end surface, 13-outer surface. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0020] The core advantage of the flat wire motor lies in the improvement of energy density. The flat wire in the flat wire motor is for the stator winding. Traditionally, it is a number of thin round wires, but now it is replaced by thick rectangular wires.

[0021] Combination Figure 1 to Figure 2As shown, the embodiment of the utility model provides a gauge for inspecting the outer diameter size of the flat wire stator assembly winding, comprising: a gauge body 10, the gauge body 10 has an inner cylindrical surface 11, and the inner diameter size of the inner cylindrical surface 11 is configured to be the maximum allowable value of the outer diameter size of the flat wire stator assembly winding.

[0022] The shape of the gauge body 10 can be selected and set arbitrarily. The height of the inner cylindrical surface 11 can be designed according to actual needs, and there is no specific restriction on this. The gauge body 10 is made of wear-resistant and non-deformable materials. The tolerance of the outer diameter size of the flat wire stator assembly winding is a unilateral tolerance and has only a single upper limit. Corresponding to this characteristic, the inner diameter size of the inner cylindrical surface 11 can be configured as the maximum allowable value of the outer diameter size of the flat wire stator assembly winding.

[0023] According to the inspection tool for checking the outer diameter size of the flat wire stator assembly winding of the embodiment of the utility model, the inspection tool body has an inner cylindrical surface, the inner diameter size of the inner cylindrical surface is configured as the maximum allowable value of the outer diameter size of the flat wire stator assembly winding, and the inner cylindrical surface of the inspection tool body imitates the outer diameter size of the flat wire stator assembly winding, with high measurement accuracy and consistency. When in use, it is only necessary to insert the inspection tool into the flat wire stator assembly winding to be inspected to determine whether the outer diameter assembly size of the winding is qualified, thereby simplifying the measurement operation and improving the measurement efficiency.

[0024] Reference Figure 2 In some embodiments, the gauge body 10 has an end face 12, which is perpendicular to the inner cylindrical surface 11 and is configured to contact the end face of the core of the flat wire stator assembly. The end face of the core of the flat wire stator assembly is made by a mold and is usually a plane. When this end face 12 contacts the end face of the core, the inner cylindrical surface 11 can be kept perpendicular to the end face of the core, which is conducive to observing the height of the winding.

[0025] Furthermore, in order to detect whether the height of the winding is qualified, there are two end faces 12, the two end faces 12 are parallel, and the distance between the two end faces 12 is configured as the standard height of the flat wire stator assembly winding. When the bottom end face 12 contacts the core end face, the height of the winding can be determined by comparing the height of the top end face with the top of the winding.

[0026] The gauge body 10 has an outer side surface 13, and a handle is provided on the outer side surface 13. The number and position of the handle are set according to actual needs and are not specifically limited thereto. The handle is conducive to improving the convenience of operation.

[0027] Optionally, the material of the gauge body 10 is bakelite, which has the advantages of being wear-resistant and non-deformable.

[0028] In summary, the inner diameter size of the gauge in the embodiment of the utility model is the maximum value of the outer diameter of the stator assembly winding, and the outer diameter size of the stator assembly winding is controlled by the inner diameter size. When the gauge is working: use the gauge to directly cover the outer diameter of the stator assembly winding. If the gauge can be smoothly covered on the outer diameter of the stator assembly, the outer diameter size of the winding is qualified; if the gauge cannot be covered on the outer diameter of the stator assembly, the outer diameter size of the winding is unqualified. The gauge can accurately and comprehensively detect all points of the outer diameter of the stator assembly winding, avoid the size of individual areas exceeding the tolerance, and misjudge as qualified, which will cause the stator assembly to be scrapped after painting, thereby eliminating the loss of scrapped products.

[0029] Compared with the solution of measuring with calipers in the prior art, the jaws of the caliper in the prior art are easily damaged by bumps and collisions, and the damaged jaws need to be reported for repair. After repair, the calibration agency is commissioned to calibrate again, and the repair and calibration cycle of the measuring tool is 2-4 months. However, this gauge is made of bakelite, which is wear-resistant and non-deformable, reduces maintenance costs, and has a short procurement cycle. This gauge can quickly check all points of the outer diameter of the winding. It only takes 4 seconds to detect the outer diameter of the winding, which is convenient and fast; while the caliper detection in the prior art takes 120 seconds, and the detection time is shortened by 30 times.

[0030] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] In the description of the present invention, the directions or positional relationships indicated by the terms "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0034] Any process or method description in the flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A test fixture for testing the outer diameter of a flat wire stator assembly winding, characterized in that: include: A gauge body (10), the gauge body (10) having an inner cylindrical surface (11), the inner diameter of the inner cylindrical surface (11) being configured to be the maximum allowable value of the outer diameter of the flat wire stator assembly winding; The gauge body (10) has an end surface (12), the end surface (12) is perpendicular to the inner cylindrical surface (11), and is configured to contact the end surface of the iron core of the flat wire stator assembly; The number of the end faces (12) is two, the two end faces (12) are parallel, and the distance between the two end faces (12) is configured as the standard height of the flat wire stator assembly winding.

2. The inspection tool for inspecting the outer diameter of the flat wire stator assembly winding according to claim 1 is characterized in that: The gauge body (10) has an outer side surface (13), and a handle is provided on the outer side surface (13).

3. The inspection tool for inspecting the outer diameter of the flat wire stator assembly winding according to claim 1 or 2, characterized in that: The material of the inspection tool body (10) is bakelite.

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