pedestal

Abstract

To provide a base that can easily support workpiece components such as stators without damaging them. [Solution] A base 1 for supporting a workpiece member 2 comprises a base 10 that can be placed on a mounting surface G, and a plurality of legs 20 erected on the base 10 along the outer shape of the workpiece member 2 to be supported. The legs 20 include a first support portion 21 located spaced above the upper surface of the base 10 and supporting at least a portion of the bottom surface of the workpiece member 2, and a second support portion 25 located above the first support portion 21 and supporting the side surface of the workpiece member 2. A groove 27 is formed between the first support portion 21 and the second support portion 25 along the outer shape of the workpiece member 2. The support surface 25A of the second support portion 25 facing the side surface of the workpiece member 2 is inclined outward from the base end towards the tip end of the base 10.

Description

Technical Field

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[0001] The present invention relates to a pedestal for supporting various workpiece members such as a stator in a motor.

Background Art

[0002] Conventionally, in the manufacturing process of electric motors such as motors, the stator (stator) is supported and transported (for example, Patent Document 1). In the conventional technology described in Patent Document 1, the assembled stator is housed in a packing box (packing member) and transported.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, for the stator used in a motor generator used in an electric vehicle or the like, for example, there is a stator in which a coil (stator coil) inserted into the stator core is exposed from the base end side or the tip end side of the stator core. When such a stator is directly placed on a table or the like in the welding process of the coil terminal, or directly housed in a housing case (corresponding to a packing box) during transportation between processes, there is a problem that the exposed coil or the like contacts the bottom surface of the table or the housing case, and the coil or the like is damaged.

[0005] Conventionally, a base such as a spacer is provided below the stator to prevent interference between the coil and the mounting surface, and this base is fastened to the stator core with bolts or the like. Furthermore, when transporting the stator, the stator, which is fastened and supported to the base, is placed in a storage case. However, with the above-described support and transport of the stator, it is necessary to repeatedly fasten and unfasten the stator core to the base at each step, which increases the number of man-hours and the cost.

[0006] Therefore, the present invention aims to provide a base that can easily support workpiece members such as stators without damaging them. [Means for solving the problem]

[0007] (1) The present invention, provided to solve the above-mentioned problems, is a base for supporting a workpiece member, comprising: a base that can be placed on a mounting surface; and a plurality of legs erected on the base along the outer shape of the workpiece member to be supported, wherein the legs include a first support portion located spaced above the upper surface of the base and supporting at least a portion of the bottom surface of the workpiece member; and a second support portion located above the first support portion and supporting the side surface of the workpiece member.

[0008] The base of the present invention can support a workpiece member by placing it on a first support portion and also by positioning it at a predetermined location on the base using a second support portion. Therefore, since the base of the present invention does not require fastening the workpiece member with bolts or the like, the workpiece member can be easily attached to and detached from the base. As a result, the base of the present invention can significantly reduce the man-hours required for supporting (attaching and detaching) the workpiece member.

[0009] Furthermore, in the base of the present invention, at least a portion of the bottom surface of the workpiece member is supported by a first support portion spaced apart from the mounting surface and base. Therefore, when the workpiece member is supported by the first support portion, it is possible to prevent the bottom surface of the workpiece member other than the support portion from coming into contact with the mounting surface or base. Thus, the base of the present invention can suppress damage to the bottom surface of the workpiece member other than the support portion from coming into contact with the mounting surface or base. Here, it is desirable that the base be set at a low position, such as by providing an opening or by excavating closer to the mounting surface, in the portion where the bottom surface of the workpiece member other than the support portion supported by the legs is located. This makes it possible to more reliably suppress contact between the base and the bottom surface of the workpiece member other than the support portion. In addition, since the base of the present invention is located above the first support portion and includes a second support portion that supports the side surface of the workpiece member, it is possible to suppress the workpiece member supported by the first support portion from shifting laterally, and to support the workpiece member in a predetermined position.

[0010] (2) The base of the present invention described above is preferably characterized in that a groove is formed between the first support portion and the second support portion, which conforms to the outer shape of the workpiece member to be supported.

[0011] By configuring the base of the present invention as described in (2) above, it is possible to suppress contact between the edges of the supported workpiece and the first support portion and the second support portion. As a result, the base of the present invention can suppress damage to the base and the workpiece. In particular, if the base is made of a material that is easily damaged, such as a resin member, it is desirable to form a groove as described in (2) above. Here, if the workpiece is formed in a circular shape, for example, it is desirable to form the groove between the first support portion and the second support portion along the circumferential direction.

[0012] (3) In the base of the present invention as described above, the support surface of the second support portion facing the side surface of the workpiece member is preferably inclined outward from the base end towards the tip end.

[0013] As described above, the base of the present invention, when configured as described in (3) above, allows the workpiece member to smoothly enter from the tip side to the base side of the second support portion. Therefore, the base of the present invention can smoothly position and support the workpiece member. Furthermore, the base of the present invention can prevent the tip portion of the second support portion from coming into contact with the workpiece member and causing damage when supporting the workpiece member.

[0014] (4) The base of the present invention described above is preferably characterized in that the base is formed as an annular frame.

[0015] As described above, the base of the present invention, when configured as described in (4) above, can appropriately support circular or annular workpiece members according to their shape, and is expected to be more compact and lighter. Furthermore, since the base of the base of the present invention is formed as an annular frame, the bottom surface of the workpiece member other than the support area can be positioned in the opening of the annular frame. Therefore, the base of the present invention can more efficiently suppress contact between the bottom surface of the workpiece member other than the support area and the base.

[0016] (5) In the base of the present invention described above, the workpiece member is a stator comprising a stator core and a coil inserted through the stator core, and the first support portion is characterized in that, when supporting the core bottom surface of the stator core, the coil bottom surface of the coil is located at a height such that it is spaced apart from the base portion and the aforementioned mounting surface.

[0017] As described above, the base of the present invention, when configured as described in (5) above, can prevent the bottom surface of the stator coil from coming into contact with the base or mounting surface. This allows the base of the present invention to effectively prevent damage to the coil. Here, the bottom surface of the core in the stator core corresponds to the bottom surface of the stator core other than the support points.

[0018] (6) In the base of the present invention as described above, the base is housed in a housing case having a rectangular bottom that forms the aforementioned surface, and when housed in the housing case, it comprises at least two opposing parts that face the inner wall of the housing case and a pair of protruding parts that project outward toward the inner wall, wherein at least two of the opposing parts abut against the inner wall of the housing case when housed in the housing case, and the pair of protruding parts are arranged in directions that intersect each other, and when housed in the housing case, they abut against two intersecting inner walls of the housing case, thereby causing the base to be eccentrically positioned within the housing case.

[0019] The base of the present invention described above, when housed in a storage case, has at least two opposing parts that contact the inner wall of the storage case, thereby allowing the side of the base with the opposing parts to be brought closer to the inner wall of the storage case. Furthermore, when housed in a storage case, the base of the present invention has a pair of protruding parts that protrude in directions that intersect each other (for example, directions perpendicular to each other in the horizontal direction) and contact two intersecting (for example, perpendicular to each other) inner walls of the storage case. As a result, when the base of the base of the present invention is housed in a storage case, the base is positioned eccentrically within the storage case, creating a space on the side of the protruding parts of the base within the storage case. Therefore, the base of the present invention allows, for example, a protruding part of the supported workpiece member to be placed in this space. As a result, the base of the present invention can suppress interference between the protruding part of the workpiece member and the storage case.

[0020] (7) The base of the present invention described above is characterized in that, in (6) above, a plurality of wires are drawn out so as to protrude from a part of the circumferential direction of the coil, and the stator is housed in the housing case supported by the first support portion and the second support portion such that the plurality of wires drawn out from the coil are located in the space formed between the pair of protrusions and the inner wall of the housing case.

[0021] As described above, the base of the present invention, when configured as described in (7) above, can accommodate multiple wirings of the stator coil in the space formed between the pair of protrusions and the inner wall of the housing case. This allows the base of the present invention to house the stator in the housing case without the wiring, which is arranged asymmetrically with respect to the supported stator, interfering with the inner wall of the housing case. Here, the wiring is, for example, the power lines in the stator, but is not limited to this, and various types of wiring can be used.

[0022] When supporting the same type of stator on a base, for example, wiring such as power lines are positioned at a fixed location relative to the stator, so one type of base can be used. However, different stators are used depending on the type of electric vehicle (electric car, hybrid car, etc.) in which they are installed (for example, kei cars or compact cars referred to as A-segment cars), and some have different power line arrangements (phases). Therefore, if the support point is not changed according to the type of vehicle in which the stator is installed, there is a concern that the power lines will interfere with the housing case. To avoid this, it is necessary to prepare multiple types of bases with different leg positions, which results in high costs.

[0023] (8) In order to solve the above problem, the base of the present invention is characterized in that, in (6) above, a plurality of wires are drawn out so as to protrude from a part of the circumferential direction of the coil, and a plurality of legs are provided according to the support location of each of the plurality of types of stators which have different support locations, and the plurality of legs are arranged such that the support locations of each of the plurality of types of stators are offset along the outer shape of the stator so that the plurality of wires drawn out from each of the coils of each of the plurality of types of stators which are to be supported are located in the space formed between the pair of protrusions and the inner wall of the housing case.

[0024] The plurality of legs provided on the pedestal of the present invention described above are arranged such that the plurality of wirings drawn from the respective coils in the plurality of types of stators to be supported are located in the space formed between the pair of protruding portions and the inner wall of the housing case. The respective support positions of the plurality of types of stators are shifted along the outer shape (for example, the circumferential direction) of the stator. Therefore, the pedestal of the present invention can support a plurality of types of stators, each having a different support position (for example, a stator used in a light automobile or a stator used in a vehicle such as an A segment), with legs suitable for each. That is, even for a plurality of types of stators having different phases in the drawing direction of the power line, the pedestal of the present invention can accommodate the power line without interfering with the housing case, for example, by rotating and supporting the stator around the axis of the stator. As a result, the pedestal of the present invention can standardize one type of pedestal, eliminating the need to prepare a plurality of types of pedestals and enabling cost reduction.

Effect of the Invention

[0025] According to the present invention, it is possible to provide a pedestal that can easily support a work member such as a stator.

Brief Description of the Drawings

[0026] [Figure 1] It is a perspective view of an embodiment of a pedestal according to the present invention. [Figure 2] (a) is a plan view of an embodiment of a pedestal according to the present invention, and (b) is a left side view of (a). [Figure 3] (a) is an enlarged view of a leg in the pedestal according to the present invention, and (b) is a cross-sectional view taken along the line A-A in FIG. 2(a). [Figure 4] It is a perspective view of an embodiment of a pedestal according to the present invention in a state where a stator (work member) is supported. [Figure 5] It is a plan view showing a state where the pedestal according to the present invention in a state where a stator is supported is housed in a housing case. [Figure 6] It is a partially cutaway front view of FIG. 5. [Figure 7] This is a perspective view of one embodiment of a stator (workpiece member) supported by a base according to the present invention. [Modes for carrying out the invention]

[0027] The base 1 according to one embodiment of the present invention will be described in detail below with reference to the drawings. Note that the figures are schematic representations for ease of understanding and may differ from the actual shape, size, and arrangement of components. Also note that some reference numerals have been omitted for similar parts. In this embodiment, the case in which the workpiece member 2 supported by the base 1 is a stator (also referred to as stator 2) of a motor used in an electric vehicle or the like will be described as an example.

[0028] First, in describing the base 1 of the present invention, we will explain in detail the stator 2 supported by the base 1. Figure 7 is a schematic perspective view of the stator 2 (also referred to as the stator 2) supported by the base 1 (see Figure 1) of the present invention. The stator 2 includes a stator core 3 and a stator coil 4 (also referred to as the coil 4), etc.

[0029] The stator core 3 (also referred to as the main body 3) is formed in a cylindrical shape, and multiple fixing bolt holes 3A are provided on its outer circumference (in this embodiment, three are spaced 120 degrees apart, one of which is not shown). The portion of the outer circumference of the stator core 3 where the bolt holes 3A are provided protrudes radially outward, forming a flange portion 3B (also referred to as the lug portion 3B). As will be described in detail later, the flange portion 3B constitutes the bottom surface 3D (also referred to as the core bottom surface 3D) that is supported by the leg portion 20 of the base 1 of the present invention. In addition, multiple core grooves 3C are formed radially on the inner circumference of the stator core 3.

[0030] The stator coil 4 is formed in an annular shape and fitted into multiple core grooves 3C. In other words, the stator coil 4 is inserted into the stator core 3 via the core grooves 3C. The upper end of the stator coil 4 protrudes from the stator core 3, and the protruding end forms multiple terminals 5. The lower end of the stator coil 4 protrudes downward from the stator core 3, forming the coil bottom surface 4A of the stator coil 4 (see Figure 6). The stator coil 4 also has multiple pairs of adjacent terminals 5,5 that are welded to each other. The terminals 5,5 are formed, for example, to extend in the vertical direction.

[0031] Here, the material of terminals 5,5 is not particularly limited, but for example, copper can be used. Multiple terminals 5,5 that are welded to each other are arranged at predetermined intervals to form a terminal row along the radial direction of the stator coil 4. The stator coil 4 is enamel-coated in appropriate places.

[0032] Furthermore, in this embodiment, multiple power lines 7 are drawn out radially from a portion of the side surface of the stator coil 4 toward the radially outward direction of the stator 2. In this embodiment, three power lines 7 are drawn out from the stator coil 4. The multiple power lines 7 are attached to the terminals 5 by welding, for example, after the stator coil 4 has been assembled into the stator core 3. Note that Figure 1 only shows the power lines 7 up to a certain point.

[0033] The above describes the configuration of the stator 2 supported by the base 1 according to one embodiment of the present invention. Next, the details of the base 1 will be described below.

[0034] As shown in Figure 4, the base 1 is designed to support the stator 2 (workpiece member 2) and includes a base 10 and a plurality of legs 20, etc.

[0035] As shown in Figures 1 and 2(a), the base 10 is formed as a flat, annular frame in this embodiment. Further details will be described later, but the base 10 includes a pair of opposing parts 11A and 11B (each also referred to as opposing part 11 unless otherwise specified) and a pair of protruding parts 15A and 15B (each also referred to as protruding part 15 unless otherwise specified). The base 10 is designed to be placed on a mounting surface G (see Figure 3(b)). Here, the mounting surface G is configured as a table surface (not shown) or the bottom 32 (also referred to as the case bottom 32) of the storage case 30 (see Figures 5 and 6), which will be described later. Multiple (six in this embodiment) legs 20 are erected on the base 10.

[0036] As will be described in detail later, in this embodiment, the six legs 20 are grouped into sets of three to correspond to two types of stators 2 with different support locations. The six legs 20 are arranged along the circumferential direction of the base 10 such that the three first legs 20A belonging to the first group and the three second legs 20B belonging to the second group are each offset by 60 degrees in phase. That is, the first legs 20A are arranged at 120-degree intervals in the circumferential direction of the base 10, and the second legs 20B are arranged at 120-degree intervals in the circumferential direction of the base 10 so as to be offset by 60 degrees from the first legs 20A. Note that in this embodiment, the six legs 20 are all formed in the same shape, so unless particularly necessary, only one leg 20 will be described, and the descriptions of the other legs 20 will be omitted.

[0037] As shown in Figures 1, 2, and 4, the leg portion 20 is erected on the base portion 10 along the outer shape (circumferential circumference) of the stator 2 (see Figure 4) that is to be supported. As shown in Figures 3(a) and 3(b), the leg portion 20 is equipped with a first support portion 21, a second support portion 25, and a groove 27, etc.

[0038] The first support portion 21 has a first support surface 21A that supports at least a portion of the bottom surface 3D of the stator 2 (in this embodiment, the stator core 3). The first support portion 21 is located above (for example, 40 mm) the upper surface of the base portion 10. In this embodiment, the first support portion 21 supports the bottom surface 3D of the flange portion 3B of the stator core 3 located on the outer circumference of the stator 2. In this embodiment, the first support portions 21 of the three first leg portions 20A of the first group support the three core bottom surfaces 3D that are the support points. Also, as shown in Figure 3(a), the first support portion 21 (first support surface 21A) is formed in a substantially triangular shape, and the outer circumference portion on the side facing the second support portion 25 is curved in an arc shape along the outer circumference of the stator 2 (stator core 3) that it supports.

[0039] As shown in Figure 3(b), the second support portion 25 is positioned above the first support portion 21 and supports the side surface of the stator 2 (in this embodiment, the stator core 3). That is, the second support portion 25 is erected on the outside (radially outward in this embodiment) of the first support portion 21 and faces upward. Furthermore, the second support surface 25A of the second support portion 25, which faces the side surface of the stator 2 being supported, is inclined outward from the base end towards the tip end of the base portion 10. That is, the second support surface 25A of the second support portion 25 is inclined outward from the base portion 10 relative to the first support surface 21A. The second support portion 25 is formed to protrude, for example, 10 mm, from the first support portion 21 (first support surface 21A). In addition, in this embodiment, the second support surface 25A is curved in an arc shape to match the outer shape of the flange portion 3B of the stator core 3.

[0040] Here, the inclination angle of the second support surface 25A is preferably 4 to 8 degrees with respect to the first support surface 21A, and more preferably 6 degrees with respect to the first support surface 21A. This allows the base 1 of the present invention to smoothly allow the stator 2 to enter from the tip side to the base side of the second support portion 25. Therefore, the base 1 of the present invention can smoothly position and support the stator 2. In addition, when supporting the stator 2, the base 1 of the present invention can suppress damage caused by the tip portion of the second support portion 25 coming into contact with the stator 2.

[0041] As shown in Figures 3(a) and 3(b), in this embodiment, a groove 27 is provided between the first support portion 21 and the second support portion 25 of the leg portion 20. The groove 27 is formed along the outer shape of the stator 2 (stator core 3) to be supported. The groove 27 is formed to be recessed, for example, 0.5 to 1.5 mm (preferably 1.0 mm) from the first support surface 21A of the first support portion 21.

[0042] Next, the base 1 in which the stator 2 is supported will be explained with reference to Figures 4 to 6. Note that Figures 5 and 6 show the base 1 in which the stator 2 is supported, housed in the housing case 30, which will be described later.

[0043] First, the base 1 (base portion 10) is placed on the mounting surface G (see Figure 3(b)), and the stator 2 is lowered from above (the tip side of the second support portion 25) so that at least a portion of the core bottom surface 3D is placed on the first support portion 21 (first support surface 21A). In this embodiment, three core bottom surfaces 3D are selectively supported by three of the six legs 20 (first support portion 21) (first group) such that the multiple power lines 7 are located on the side where the pair of protrusions 15A and 15B, described later, are positioned. At this time, the outer circumference of the flange portion 3B of the stator core 3 is guided by the second support surface 25A of the second support portion 25, and the stator 2 is positioned approximately in the center of the circumference formed by the multiple legs 20. In addition, the coil bottom surface 4A of the coil 4 is positioned by the first support portion 21 at a height that is separated from the base portion 10 and the mounting surface G.

[0044] The above describes the details of the support of the stator 2 on the base 1. Next, the details of the opposing parts 11A, 11B and the protruding parts 15A, 15B of the base 10, which are used when housing the base 1 in the housing case 30, will be described below.

[0045] As shown in Figures 5 and 6, the base 10 is designed to be housed in a bottomed storage case 30. The storage case 30 is made of a material such as resin or metal, and is used for transporting the stator 2 between manufacturing processes and for storing the finished product. The storage case 30 is formed in a box shape with an open top and a bottom 32 (also referred to as the case bottom 32) which forms the mounting surface G, for example, in the shape of a rectangle (in this embodiment, a square shape). As shown in Figure 5, the storage case 30 has four inner walls 31 (also referred to as inner walls 31A, 31B, 31C, and 31D if distinguished).

[0046] The base portion 10 is provided with a plurality of (in this embodiment, a pair) opposing portions 11A, 11B and a plurality of (in this embodiment, a pair) protruding portions 15A, 15B.

[0047] The pair of opposing parts 11A and 11B are positioned to face the inner walls 31C and 31D of the housing case 30 when the base 10 is housed in the housing case 30. The opposing parts 11A and 11B are made of plate material extending outward from the base 10 and are designed to abut against the inner walls 31C and 31D of the housing case 30 when housed in the housing case 30. By the opposing parts 11A and 11B abutting against the inner walls 31C and 31D of the housing case 30, the base 10 is positioned biased toward the inner walls 31C and 31D of the housing case 30.

[0048] The pair of protrusions 15A and 15B are arranged in directions that intersect each other (in this embodiment, in directions perpendicular to the horizontal direction). When the base 10 is housed in the housing case 30, the protrusions 15A and 15B come into contact with the two intersecting inner walls 31A and 31B of the housing case 30, respectively, causing the base 10 to be eccentrically positioned within the housing case 30. This creates a space between the base 1 (base 10) and the inner walls 31C and 31D of the housing case 30.

[0049] Next, we will describe how the stator 2 is housed in the housing case 30 on the base 1.

[0050] The stator 2 has multiple power lines 7 (wiring 7) drawn out from a portion of the circumferential direction of the coil 4 in a predetermined direction (in this embodiment, the 0 to 90 degree direction in a plan view of the stator 2). The stator 2 is supported on the base 1 such that the multiple power lines 7 are oriented in the predetermined direction (in this embodiment, the 0 to 90 degree direction in a plan view of the stator 2). Therefore, the stator 2 is supported by the first support part 21 and the second support part 25 such that the multiple power lines 7 drawn out from the coil 4 are located on the side of a pair of protrusions 15A and 15B.

[0051] When the base 1 supporting the stator 2 is housed in the housing case 30, the opposing parts 11A and 11B of the base 1 come into contact with the inner walls 31C and 31D of the housing case 30, and the protruding parts 15A and 15B come into contact with the inner walls 31A and 31B of the housing case 30. As a result, the base 1 is positioned eccentrically with respect to the bottom surface of the housing case 30, and a space (also simply referred to as space) is formed between the base 1 (base 10) and the inner walls 31A and 31B of the housing case 30. In addition, the multiple power lines 7 of the stator 2 supported by the base 1 are located in this space, and interference between the multiple power lines 7 and the housing case 30 is suppressed.

[0052] Here, the stator 2 may have different phases in which the power lines 7 are arranged depending on whether it is used in a kei car (mini car) or a compact car referred to as an A-segment vehicle. When the phase in which the power lines 7 are arranged differs in this way, the support points of the stator 2 also differ. In other words, there are multiple types of stators 2 with different support points depending on the type of vehicle in which they are used. The stator 2 shown in Figures 4 to 7 is, for example, one used in an A-segment vehicle.

[0053] Here, in the stator 2 for a light vehicle (not shown), for example, multiple power lines 7 are arranged in directions of 90 to 180 degrees in a plan view, and the phase of the multiple power lines 7 is different from that of the stator 2 for the A segment in this embodiment. In order to support stators 2 with different phases in the arrangement of such power lines 7, the base 1 of the present invention has multiple legs 20 arranged such that the multiple power lines 7 of the multiple types of stators 2 to be supported are located in the space formed between a pair of protrusions 15A, 15B and the inner walls 31A, 31B of the housing case 30, with each of the support points of the multiple types of stators 2 offset along the outer shape (circumferential direction) of the stator 2. Furthermore, even with multiple types of stators 2 that have different support points, the base 1 allows the power lines 7 to be positioned within the space formed by the pair of protrusions 15A, 15B and the inner walls 31A, 31B of the housing case 30. Therefore, the base 1 of the present invention can suppress interference between the power lines 7 and the housing case 30, even with different types of stators 2.

[0054] The above describes one embodiment of the base 1 of the present invention. Next, the effects and advantages realized by the base 1 of the present invention will be described below.

[0055] The base 1 of the present invention described above has the following characteristic configurations (a) to (h). Therefore, the base 1 of the present invention can achieve unique effects that cannot be achieved with the prior art, as described below.

[0056] (a) The base 1 of this embodiment is a base 1 for supporting a work member 2, and comprises a base 10 that can be placed on a mounting surface G, and a plurality of legs 20 that are erected on the base 10 along the outer shape of the work member 2 to be supported, wherein the legs 20 comprises a first support portion 21 that is located spaced above the upper surface of the base 10 and supports at least a part of the bottom surface 3D of the work member 2, and a second support portion 25 that is located above the first support portion 21 and supports the side surface of the work member 2.

[0057] In this embodiment, the base 1 supports the workpiece member 2 by placing it on the first support portion 21, and also supports it in a position fixed at a predetermined location on the base portion 10 by the second support portion 25. Therefore, in this embodiment, the base 1 does not require fastening the workpiece member 2 with bolts or the like, making it easy to attach and detach the workpiece member 2 to and from the base 1. As a result, the base 1 of this embodiment can significantly reduce the man-hours required to support (attach and detach) the workpiece member 2.

[0058] Furthermore, in this embodiment, since at least a portion of the bottom surface of the workpiece member 2 is supported by the first support portion 21 which is spaced apart from the mounting surface G and the base portion 10, it is possible to avoid the bottom surface of the workpiece member 2 other than the support portion coming into contact with the mounting surface G or the base portion 10 when the workpiece member 2 is supported by the first support portion 21. Therefore, the base portion 1 in this embodiment can suppress damage to the bottom surface of the workpiece member 2 other than the support portion coming into contact with the mounting surface G or the base portion 10. Here, it is desirable that the base portion 10 be set at a low position, such as by providing an opening or by digging down to be closer to the mounting surface G, in the portion where the bottom surface of the workpiece member 2 other than the support portion supported by the leg portion 20 is located. This makes it possible to more reliably suppress contact between the base portion 10 and the bottom surface of the workpiece member 2 other than the support portion. Furthermore, since the base 1 of this embodiment is located above the first support portion and includes a second support portion 25 that supports the side surface of the workpiece member 2, it is possible to suppress the workpiece member 2 supported by the first support portion 21 from shifting laterally, and to support the workpiece member 2 while positioning it in a predetermined position.

[0059] (b) The base 1 of this embodiment described above is characterized in that a groove 27 is formed between the first support portion 21 and the second support portion 25, which conforms to the outer shape of the workpiece member 2 to be supported.

[0060] By configuring the base 1 of this embodiment as described in (b) above, it is possible to suppress contact between the edges of the supported workpiece member 2 and the first support portion 21 and the second support portion 25. As a result, the base 1 of this embodiment can suppress damage to the base 1 and the workpiece member 2. In particular, if the base 1 is made of a material that is easily damaged, such as a resin member, it is desirable to form a groove 27 as described in (b) above. Here, if the workpiece member 2 is formed in a circular shape, for example, it is desirable to form the groove 27 between the first support portion 21 and the second support portion 25 along the circumferential direction.

[0061] (c) In the base 1 of this embodiment described above, the second support surface 25A of the second support portion 25 facing the side surface of the workpiece member 2 is inclined outward from the base end towards the tip end of the base portion 10.

[0062] As described above, the base 1 of this embodiment, when configured as shown in (c), allows the workpiece member 2 to smoothly enter from the tip side to the base side of the second support portion 25. Therefore, the base 1 of this embodiment can smoothly position and support the workpiece member 2. Furthermore, the base 1 of this embodiment can prevent the tip portion of the second support portion 25 from coming into contact with the workpiece member 2 and causing damage when supporting the workpiece member 2.

[0063] (d) The base 1 of this embodiment described above is characterized in that the base 10 is formed as an annular frame.

[0064] As described above, the base 1 of this embodiment, when configured as shown in (d) above, can appropriately support circular or annular workpiece members 2 according to their shape, and the base 1 can be made more compact and lighter. Furthermore, in this embodiment, since the base 10 is formed as an annular frame, the bottom surface of the workpiece member 2 other than the support area can be positioned in the opening of the annular frame. Therefore, the base 1 of this embodiment can more efficiently suppress contact between the bottom surface of the workpiece member 2 other than the support area and the base 10.

[0065] (e) In the base 1 of the above embodiment, the work member 2 is a stator 2 comprising a stator core 3 and a coil 4 inserted through the stator core 3, and the first support portion 21 is characterized in that, when supporting the core bottom surface 3D of the stator core 3, the coil bottom surface 4A of the coil 4 is located at a height that is spaced apart from the base portion 10 and the mounting surface G.

[0066] As described above, the base 1 of this embodiment, when configured as shown in (e) above, can prevent the coil bottom surface 4A of the stator 2 (corresponding to the bottom surface of the workpiece member 2 other than the support area) from coming into contact with the base 10 or the mounting surface G. As a result, the base 1 of this embodiment can effectively prevent damage to the coil 4. Here, the core bottom surface 3D of the stator core 3 corresponds to the bottom surface of the stator core 3 other than the support area.

[0067] (f) In the base 1 of the above embodiment, the base 10 is housed in a housing case 30 which has a rectangular bottom 32 forming a mounting surface G, and when housed in the housing case 30, it comprises at least two opposing parts 11A, 11B that face the inner wall 31 of the housing case 30, and a pair of protruding parts 15A, 15B that protrude outward toward the inner wall 31, wherein the at least two opposing parts 11A, 11B each abut against the inner wall 31 of the housing case 30 when housed in the housing case 30, and the pair of protruding parts 15A, 15B are arranged in directions that intersect each other, and when housed in the housing case 30, they abut against two intersecting inner walls 31 of the housing case 30, so that the base 10 is eccentrically positioned within the housing case 30.

[0068] In this embodiment, when the base 1 described above is housed in the housing case 30, at least two opposing portions 11A and 11B abut against the inner wall 31 of the housing case 30, respectively, allowing the base 1 on the side with the opposing portions 11A and 11B to be brought closer to the inner wall 31 of the housing case 30. Furthermore, when the base 1 of this embodiment is housed in the housing case 30, a pair of protruding portions 15A and 15B protrude in directions that intersect each other (for example, directions perpendicular to each other in the horizontal direction), and abut against two intersecting (for example, perpendicular to each other) inner walls 31 of the housing case 30. As a result, when the base 1 of this embodiment is housed in the housing case 30, the base portion 10 is eccentrically positioned within the housing case 30, creating a space within the housing case 30 on the side of the protruding portions 15A and 15B of the base 1. Therefore, the base 1 of this embodiment allows, for example, a protruding portion of the supported workpiece member 2 to be placed within this space. As a result, the base 1 of this embodiment can prevent the protruding parts of the workpiece member 2 from interfering with the housing case 30.

[0069] (g) The base 1 of the above embodiment is characterized in that, in (f) above, a plurality of wires 7 are drawn out so as to protrude from a part of the circumferential direction of the coil 4, and the stator 2 is housed in the housing case 30 with the stator 2 supported by the first support portion 21 and the second support portion 25 such that the plurality of wires 7 drawn out from the coil 4 are located in the space formed between the pair of protrusions 15A, 15B and the inner wall 31 of the housing case 30.

[0070] As described above, the base 1 of this embodiment, when configured as shown in (g) above, can accommodate multiple wires 7 of the coil 4 of the stator 2 in the space formed between the pair of protrusions 15A, 15B and the inner wall 31 of the housing case 30. This allows the base 1 of this embodiment to house the stator 2 in the housing case 30 without the wires 7, which are arranged asymmetrically with respect to the supported stator 2, interfering with the inner wall 31 of the housing case 30. Here, the wires 7 are, for example, power lines in the stator 2, but are not limited to this, and various types of wires can be used.

[0071] (h) In this embodiment, the base 1 has multiple wires 7 drawn out so as to protrude from a part of the circumferential direction of the coil 4 as described in (f) above, and multiple legs 20 are provided according to the support locations of multiple types of stators 2 which have different support locations, and the multiple legs 20 are arranged such that the support locations of each of the multiple types of stators 2 are offset along the outer shape of the stator 2 so that the multiple wires 7 drawn out from each coil 4 of the multiple types of stators 2 to be supported are located in the space formed between the pair of protrusions 15A, 15B and the inner wall 31 of the housing case 30.

[0072] The multiple legs 20 provided in the base 1 of this embodiment described above are arranged such that the support points of each of the multiple types of stators 2 are offset along the outer shape (e.g., in the circumferential direction) of the stator 2, so that the multiple wires 7 drawn out from each coil 4 of the multiple types of stators 2 to be supported are located in the space formed between the pair of protrusions 15A, 15B and the inner wall 31 of the housing case 30. Therefore, the base 1 of this embodiment can support multiple types of stators 2, each with different support points (e.g., stators used in light vehicles and stators used in A-segment vehicles, etc.), by using legs 20 appropriate for each. In other words, even if the phase of the power line 7 drawing direction of multiple types of stators 2 is different, the base 1 of this embodiment can accommodate the power line 7 without interfering with the housing case 30 by, for example, rotating the stator 2 around the axis of the stator 2 to support it. As a result, the base 1 of this embodiment can use a single type of base 1, eliminating the need to prepare multiple types of bases 1, and thus cost reduction can be expected.

[0073] The above describes the structure and effects of the base 1 of the present invention. However, the base 1 of the present invention is not limited to the embodiments or modifications described above, and can be modified in various ways within the scope of the present invention. For example, the base 1 may be as described in (a) above, and can be formed in various shapes and sizes. Furthermore, the base 1 of the present invention may, for example, not have some or all of the components described in (b) to (h) above, or may have some or all of (b) to (h) above and other components.

[0074] In this embodiment, a stator 2 is used as an example of the workpiece member 2, but the base 1 of the present invention is not limited to this and can support workpiece members 2 of various shapes, sizes, and materials.

[0075] Furthermore, in this embodiment, a stator 2 for an A-segment vehicle and a stator 2 for a light vehicle are given as examples of work member 2, but the stator 2 is not limited to these and can be applied to various types of stators. Also, in this embodiment, the coil 4 in the stator 2 protrudes vertically from the stator core 3, but various configurations of arrangement of the coil 4 relative to the stator core 3 can be used. Also, in this embodiment, the base 10 is formed as an annular frame, but the base 10 is not limited to this and can be of various shapes and sizes. Also, in this embodiment, six legs 20 are provided, but this is not limited and various quantities of legs 20 can be used depending on the number of support points for the work member 2. Also, the arrangement of the legs 20 should be such that they are erected along the outer shape of the work member 2 so as not to interfere with the work member 2, depending on the shape of the work member 2. Furthermore, the first support portion 21 of the leg portion 20 should be positioned so as to be spaced upward from the upper surface of the base portion 10, so that the bottom surface of the workpiece member 2 other than the support portion does not interfere with the mounting surface G or the upper surface of the base portion 10.

[0076] In this embodiment, the first support portion 21 is triangular in shape, and the side facing the second support portion 25 is curved in an arc shape to match the outer shape (circumferential circumference) of the workpiece member 2 (stator 2). However, the shape and size of the first support portion 21 can be formed in various shapes and sizes. Similarly, the shape and size of the second support portion 25 can also be formed in various shapes and sizes to match the outer shape (circumferential circumference) of the workpiece member 2 (stator 2). Furthermore, the height position at which the first support portion 21 is set, and the height difference between the first support portion 21 and the second support portion 25, can be set to various heights and height differences depending on the shape and size of the workpiece member 2.

[0077] Furthermore, in this embodiment, a groove 27 is formed between the first support portion 21 and the second support portion 25, but the groove 27 is not limited to this, and various shapes can be used. The groove 27 can be formed in various shapes depending on the outer shape of the workpiece member 2 and the curved shape of the second support portion 25. Also, the depth and width of the groove 27 can be varied depending on the outer shape of the workpiece member 2 and the shape of the support surface. In addition, in this embodiment, the second support surface 25A of the second support portion 25 is inclined outward from the base end to the tip end of the base portion 10, but the inclination angle of the second support surface 25A of the second support portion 25 is not limited to the above-described embodiment, and can be appropriately changed depending on the outer shape of the workpiece member 2.

[0078] In this embodiment, the base portion 10 is provided with a pair of opposing portions 11A, 11B and a pair of protruding portions 15A, 15B. However, the number of opposing portions 11A, 11B and protruding portions 15A, 15B provided is not limited to the embodiment described above, and various quantities and sizes can be provided depending on the shape and size of the housing case 30, workpiece member 2, etc. Furthermore, the protruding portions 15A, 15B can be formed facing various directions depending on the size and position of the space formed between them and the inner wall 31 of the housing case 30.

[0079] In this embodiment, a stator 2 is illustrated in which three wires 7 (power lines 7) are drawn out so as to protrude from a part of the circumferential direction of the coil 4. However, the invention is not limited to this, and various quantities of wires 7 can be used, such as a single wire, two wires, or three or more wires. Also, in this embodiment, a stator 2 in which the wires 7 are power lines is illustrated, but various types of wires 7 can be used, not limited to power lines. Also, in this embodiment, a stator 2 in which the wires 7 have already been drawn out is illustrated, but the wires 7 may be attached in a later process. Also, in this embodiment, the stator 2 is housed in the housing case 30 with the stator 2 supported by the first support part 21 and the second support part 22 such that the multiple wires 7 drawn out from the coil 4 are located in the space formed between the pair of protrusions 15A, 15B and the inner wall 31 (inner wall 31A, 31B) of the housing case 30. However, the base 1 of the present invention is not limited to this. For example, the base 1 of the present invention may have a single protrusion 15 or no protrusion 15 at all, depending on the arrangement of the wiring 7 of the workpiece member 2.

[0080] In this embodiment, the support points for each of the two types of stators 2 (for A-segment vehicles and for light vehicles) are positioned such that the multiple wires 7 drawn out from each coil 4 of the two types of stators 2 to be supported are located in the space formed by the pair of protrusions 15A, 15B and the inner walls 31, 31 of the housing case 30, with the support points for each of the two types of stators 2 being positioned with a 60-degree phase shift along the outer shape of the stator 2. However, the base 1 of the present invention is not limited to this. For example, there may be three or more types of stators 2 to be supported, in which case the multiple legs 20 can be positioned according to the phase of the direction in which the multiple wires 7 of each type of stator 2 are drawn out. In this embodiment, the base 1 is positioned to support three locations on the bottom surface 3D of the flange portion 3B of the stator 2. However, the base 1 can also be configured to support other than the bottom surface 3D of the flange portion 3B, for example, the bottom surface of the outer circumference of the stator core 3.

[0081] The above describes various embodiments and modifications of the base according to the present invention. However, the present invention is not limited to those exemplified in the embodiments and modifications described above, and it will be readily apparent to those skilled in the art that other embodiments may exist in the spirit and teachings thereof, without departing from the scope of the claims. [Industrial applicability]

[0082] The present invention can be suitably used to support the stator of various electric motors, such as motors and generators. Furthermore, the present invention can be suitably used in the manufacture of electric motors used in various vehicles, such as electric vehicles and hybrid vehicles. [Explanation of Symbols]

[0083] G: Mounting surface 1: Pedestal 2: Stator 3: Stator core 3D: Bottom surface (core bottom surface) 4: Stator coil 7: Wiring (power line) 10: Base 11A: Opposing part 11B: Opposite part 15A:Protrusion 15B:Protrusion 20: Legs 21: 1st support part 21A: 1st support surface 25:Second support part 25A: 2nd support surface 27: Groove 30: Storage case 31:Inner wall 31A:Inner wall 31B:Inner wall 31C:Inner wall 31D:Inner wall

Claims

1. A base for supporting a workpiece, A base that can be placed on a mounting surface, On the base, a plurality of legs are erected along the outer shape of the workpiece member to be supported, Equipped with, The aforementioned leg portion is A first support portion is located spaced above the upper surface of the base and supports at least a portion of the bottom surface of the workpiece member, A second support portion is located above the first support portion and supports the side surface of the workpiece member, A pedestal characterized by having the following features.

2. The base according to claim 1, characterized in that the support surface of the second support portion facing the side surface of the workpiece member is inclined outward from the base end towards the tip end.

3. The aforementioned workpiece member is Stator core and The coil inserted through the stator core, It is a stator equipped with, The base according to claim 1 or 2, characterized in that when the first support portion supports the core bottom surface of the stator core, the coil bottom surface of the coil is located at a height such that it is spaced apart from the base portion and the aforementioned mounting surface.

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