Adapter plate, electromagnetic contactor mounting structure, and electromagnetic contactor mounting method

Abstract

To achieve space saving when an electromagnetic contactor is mounted on an adapter plate.SOLUTION: An adapter plate 11 includes a substrate 12. A through hole 13 is formed on one side of the substrate 12 in a longitudinal direction. A through hole 14 is formed on the other side of the substrate 12 in the longitudinal direction. An opposing plate 15 that faces the substrate 12 and can sandwich an electromagnetic contactor 31 therebetween is formed on the other side of the substrate 12 in the longitudinal direction. When the electromagnetic contactor 31 is sandwiched between the substrate 12 and the opposing plate 15, a mounting hole 34 formed on the electromagnetic contactor 31 overlaps the through hole 13. A mounting screw is inserted into the mounting hole 34 and the through hole 13 to be fastened to a mounting surface S by co-fastening, and a mounting screw is inserted into the through hole 14 to be fastened to the mounting surface S.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an adapter plate, an attachment structure for an electromagnetic contactor, and an attachment method for an electromagnetic contactor. [Background technology]

[0002] As shown in Patent Document 1, electromagnetic contactors can be mounted on support rails that comply with the DIN standard. However, because the electromagnetic contactor also has mounting holes at its four corners, it can also be screwed using two of these diagonally aligned mounting holes. When screwing is used, upgrading an electromagnetic contactor from a conventional model to a current model can result in a difference in the mounting hole pitch. In such cases, an adapter plate is used to ensure compatibility. The adapter plate, also known as a mounting compatibility attachment or auxiliary mounting plate, has mounting holes corresponding to the pitches of both the conventional and current models, as shown in Patent Document 2. Therefore, the electromagnetic contactor can be mounted on the adapter plate using the mounting holes corresponding to the pitch of the current model, and the adapter plate can be mounted on a specified mounting surface using the mounting holes corresponding to the pitch of the conventional model. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6202201 [Patent Document 2] Japanese Utility Model Application Publication No. 56-134406 Summary of the Invention [Problem to be solved by the invention]

[0004] Because the screws for fastening the electromagnetic contactor protrude from the back side of the adapter plate, the surface for fastening the electromagnetic contactor needs to be formed convexly when viewed from the side so that it is spaced apart from the mounting surface of the adapter plate. Therefore, if the electromagnetic contactor is mounted on the mounting surface via the adapter plate, the electromagnetic contactor will protrude more than if it were mounted directly on the mounting surface. An object of the present invention is to reduce the space required when an electromagnetic contactor is attached to an adapter plate. [Means for solving the problem]

[0005] An adapter plate according to one aspect of the present invention includes a substrate. A first through-hole is formed in one longitudinal direction of the substrate, a second through-hole is formed in the other longitudinal direction of the substrate, and a counter plate is formed on the other longitudinal direction of the substrate, facing the substrate and capable of sandwiching an electromagnetic contactor. When the electromagnetic contactor is sandwiched between the substrate and the counter plate, a mounting hole formed in the electromagnetic contactor overlaps the first through-hole, and mounting screws are inserted into the mounting hole and the first through-hole to fasten the electromagnetic contactor to a mounting surface by co-tightening. Furthermore, a mounting screw is inserted into the second through-hole to fasten the electromagnetic contactor to the mounting surface.

[0006] A mounting structure for an electromagnetic contactor according to another aspect of the present invention includes an electromagnetic contactor having a mounting hole formed on one side in a longitudinal direction, and an adapter plate that is interposed between the electromagnetic contactor and a predetermined mounting surface when the electromagnetic contactor is mounted on the mounting surface. The adapter plate includes a substrate. A first through hole is formed on one side of the substrate in the longitudinal direction, a second through hole is formed on the other side of the substrate, and a facing plate is formed on the other side of the substrate in the longitudinal direction, facing the substrate and capable of sandwiching the electromagnetic contactor. When the electromagnetic contactor is sandwiched between the substrate and the facing plate, a mounting screw is inserted into one of the overlapping mounting holes and the first through hole and fastened together to the mounting surface. Furthermore, a mounting screw is inserted into the second through hole and fastened to the mounting surface, thereby mounting the electromagnetic contactor to the mounting surface via the adapter plate.

[0007] In another aspect of the present invention, a method for mounting an electromagnetic contactor includes forming a mounting hole for screwing in one longitudinal direction of the electromagnetic contactor. A first through-hole is formed in the substrate of an adapter plate in one longitudinal direction, and a second through-hole is formed in the substrate in the other longitudinal direction. A facing plate is formed in the substrate in the other longitudinal direction, facing the substrate and capable of sandwiching the electromagnetic contactor. When mounting the electromagnetic contactor on a predetermined mounting surface, the electromagnetic contactor is sandwiched between the substrate and the facing plate, with the substrate interposed between the electromagnetic contactor and the mounting surface. Then, a mounting screw is inserted into one of the overlapping mounting holes and the first through-hole and fastened together to the mounting surface, and a mounting screw is inserted into the second through-hole and fastened to the mounting surface, thereby mounting the electromagnetic contactor to the mounting surface via the adapter plate. [Effects of the Invention]

[0008] According to the present invention, since the electromagnetic contactor is fastened to the mounting surface with one board sandwiched therebetween, it is possible to suppress the protrusion of the electromagnetic contactor and achieve space saving. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 10 is a diagram showing an A-type adapter plate. [Figure 2] FIG. 10 is a diagram showing a type B adapter plate. [Figure 3] FIG. 1 is a diagram showing a current model of an electromagnetic contactor. [Figure 4] 4A and 4B are diagrams showing the mounting pitch of the electromagnetic contactors; [Figure 5] FIG. 10 is a diagram showing a conventional electromagnetic contactor. [Figure 6] FIG. 10 is a diagram showing the state before pinching in type A. [Figure 7] FIG. 10 is a diagram showing the state after pinching in type A. [Figure 8] FIG. 10 is a diagram showing the state before pinching in type B. [Figure 9] FIG. 10 is a diagram showing the state after pinching in type B. [Figure 10] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the drawings are schematic and may differ from the actual product. Furthermore, the following embodiments exemplify devices and methods for embodying the technical concept of the present invention, and are not intended to limit the configuration to those described below. In other words, the technical concept of the present invention can be modified in various ways within the technical scope described in the claims.

[0011] <<Embodiment>> "composition" In the following description, the three mutually orthogonal directions will be referred to as the vertical direction, the width direction, and the depth direction for the sake of convenience. Note that one and the other vertical direction may be read as the other and one vertical direction, and one and the other width direction may be read as the other and one width direction. Adapter plates are also called mounting compatibility attachments or auxiliary mounting plates, and are used when changing a screw-fastened electromagnetic contactor from an older model to a current model, by using the screw holes of the older model to mount the current model. The electromagnetic contactor has mounting holes in its four corners, and two of these diagonally positioned mounting holes are used for screw fastening. Type A is when one vertical mounting hole is used on the other widthwise mounting hole, and the other vertical mounting hole is used on one widthwise mounting hole, while Type B is when the other vertical mounting hole is used on the other widthwise mounting hole, and the other vertical mounting hole is used on one widthwise mounting hole.

[0012] FIG. 1 shows an A-type adapter plate 11. As shown in FIG. (a) in the figure shows the adapter plate 11 as viewed from the other side in the vertical direction, the other side in the width direction, and from the front side in the depth direction. (b) in the figure shows the adapter plate 11 as viewed from the front side in the depth direction. (c) in the figure shows the adapter plate 11 as viewed from the other side in the width direction. The adapter plate 11 is formed by bending a single flexible metal plate with a thickness t of approximately 1.0 mm, and is equipped with a substrate 12. The substrate 12 is a flat plate with its surface directions in the vertical and width directions, and is longer in the vertical direction than in the width direction, with the other end in the vertical direction protruding to one side in the width direction. The substrate 12 is formed with a through hole 13 (first through hole), a through hole 14 (second through hole), and an opposing plate 15.

[0013] The through holes 13 are circular holes formed on one side of the substrate 12 in the vertical direction but on the other side in the width direction, penetrating the substrate 12 in the depth direction. The through holes 14 are circular holes formed on the other side of the substrate 12 in the vertical direction but protruding on one side in the width direction, penetrating the substrate 12 in the depth direction. The through holes 13 and 14 have a diameter larger than the male thread portion of the mounting screw (not shown) but smaller than the head diameter. The mounting screw is inserted into the through holes 13 and 14 and fastened, thereby fixing the substrate 12 to a predetermined mounting surface S. The pitch of the through holes 13 and 14 in the vertical direction is Pv1, and the pitch of the through holes 13 and 14 in the width direction is Pw1. Here, as an example, Pv1 = approximately 60 mm, and Pw1 = approximately 50 mm.

[0014] The opposing plate 15 is formed on the other longitudinal side of the substrate 12 and faces the substrate 12 to sandwich the electromagnetic contactor. Specifically, an end plate 16 is formed by bending from the other longitudinal end of the substrate 12 toward the front in the depth direction, and the opposing plate 15 is formed by bending so as to protrude from the front of the depth direction of the end plate 16 toward one longitudinal direction. The opposing plate 15 functions as a leaf spring and elastically supports the electromagnetic contactor sandwiched between the substrate 12 and the opposing plate 15. The opposing plate 15 is formed over almost the entire width of the substrate 12 and is not formed in the portion protruding toward one side in the width direction where the through hole 14 is formed. The opposing plate 15 is approximately parallel to the substrate 12 but is slightly inclined when viewed from the width direction so that it approaches the substrate 12 toward one longitudinal direction.

[0015] The opposing plate 15 is formed with a notch 17 that is concave in the opposite longitudinal direction. When viewed from the depth direction, the notch 17 is roughly U-shaped and opens in one longitudinal direction, and its width dimension is Wn1. The notch 17 fits into the electromagnetic contactor to regulate the widthwise position of the electromagnetic contactor. A restricting plate 18 bent toward the front in the depth direction is formed at the tip of the opposing plate 15 on one side of the cutout portion 17 in the width direction. The restricting plate 18 abuts against the electromagnetic contactor to restrict the vertical position of the electromagnetic contactor. On the other side of the cutout 17 in the width direction, a guide plate 19 is formed at the tip of the opposing plate 15. The guide plate 19 is inclined so as to approach the front in the depth direction as it moves toward one side in the vertical direction. The guide plate 19 guides the electromagnetic contactor between the substrate 12 and the opposing plate 15 when the electromagnetic contactor is sandwiched.

[0016] FIG. 2 is a diagram showing the adapter plate 21 of type B. (a) in the figure shows the adapter plate 21 as viewed from the other side in the vertical direction, the other side in the width direction, and from the front side in the depth direction. (b) in the figure shows the adapter plate 21 as viewed from the front side in the depth direction. (c) in the figure shows the adapter plate 21 as viewed from the other side in the width direction. The adapter plate 21 is formed by bending a single flexible metal plate with a thickness t of approximately 1.0 mm, and includes a substrate 22. The substrate 22 is a flat plate whose surface directions are the vertical and width directions, and is longer in the vertical direction than in the width direction, with one end in the vertical direction protruding to one side in the width direction. The substrate 22 is formed with a through hole 23 (first through hole), a through hole 24 (second through hole), and an opposing plate 25.

[0017] The through holes 23 are circular holes formed on the other side of the substrate 22 in the vertical direction but on the other side of the width direction, penetrating the substrate 22 in the depth direction. The through holes 24 are circular holes formed on one side of the substrate 22 in the vertical direction but protruding on one side of the width direction, penetrating the substrate 22 in the depth direction. The through holes 23 and 24 have a diameter larger than the male thread portion of the mounting screw (not shown) but smaller than the head diameter. The mounting screws are inserted into the through holes 23 and 24 and fastened, thereby fixing the substrate 22 to a predetermined mounting surface S. The pitch of the through holes 23 and 24 in the vertical direction is Pv2, and the pitch of the through holes 23 and 24 in the width direction is Pw2. Here, as an example, Pv2 = approximately 58 mm, and Pw2 = approximately 54 mm.

[0018] The opposing plate 25 is formed on one side of the substrate 22 in the vertical direction and is capable of sandwiching the electromagnetic contactor opposite the substrate 22. Specifically, an end plate 26 extending from one end of the substrate 22 in the vertical direction toward the front in the depth direction is formed by bending, and the opposing plate 25 is formed by bending so as to protrude from the front of the end plate 26 in the depth direction toward the other side in the vertical direction. The opposing plate 25 functions as a leaf spring and elastically supports the electromagnetic contactor sandwiched between the substrate 22 and the opposing plate 25. The opposing plate 25 is formed over substantially the entire width of the substrate 22 and is not formed in the portion where the through-hole 24 is formed by protruding toward one side in the width direction. The opposing plate 25 is substantially parallel to the substrate 22, but is slightly inclined when viewed from the width direction so that it approaches the substrate 22 as it goes toward the other side in the vertical direction.

[0019] The opposing plate 25 has a notch 27 formed in it that is concave in one direction in the vertical direction. When viewed from the depth direction, the notch 27 is roughly U-shaped and opens in the other direction in the vertical direction, and its width dimension is Wn2. The notch 27 fits into the electromagnetic contactor, thereby regulating the widthwise position of the electromagnetic contactor. A restricting plate 28 bent toward the front in the depth direction is formed at the tip of the opposing plate 25 in the widthwise center of the cutout portion 27. The restricting plate 28 abuts against the electromagnetic contactor to restrict the vertical position of the electromagnetic contactor. On both sides of the cutout 27 in the width direction, guide plates 29 are formed at the tip of the opposing plate 25. The guide plates 29 are inclined so as to approach the front in the depth direction as they move toward the other side in the vertical direction. The guide plates 29 guide the electromagnetic contactor between the base plate 22 and the opposing plate 25 when the electromagnetic contactor is sandwiched.

[0020] FIG. 3 is a diagram showing an electromagnetic contactor 31 of a current model. (a) in the figure shows the electromagnetic contactor 31 as seen from the other side in the vertical direction, the other side in the width direction, and from the front side in the depth direction. (b) in the figure shows the electromagnetic contactor 31 as seen from one side in the vertical direction, one side in the width direction, and from the front side in the depth direction. One side in the vertical direction of the electromagnetic contactor 31 is the primary side and is connected to the power source side, and the other side in the vertical direction is the secondary side and is connected to the load side. The electromagnetic contactor 31 has a flange-shaped base 32 that protrudes toward the other vertical direction at the rear end in the depth direction of the other vertical direction. The maximum dimension of the separation distance between the substrate 12 and the opposing plate 15 of the adapter plate 11 corresponds to the depth dimension of the base 32. The base 32 has a mounting hole 33 and a mounting hole 34. The mounting hole 33 is a circular hole formed on one side of the width direction of the base 32 and penetrating in the depth direction. The mounting hole 34 is formed on the other side of the width direction of the base 32 and is an elongated hole that is long in the vertical direction and penetrating in the depth direction. The electromagnetic contactor 31 has a narrow protrusion 35 that protrudes toward the other vertical direction at the other vertical direction. The width dimension Wn1 of the notch 17 of the adapter plate 11 corresponds to the width dimension of the protrusion 35.

[0021] The electromagnetic contactor 31 has a flange-shaped base 36 that protrudes toward one side of the vertical direction at the rear end in the depth direction of one of its vertical directions. The maximum dimension of the separation distance between the substrate 22 and the opposing plate 25 of the adapter plate 21 corresponds to the depth dimension of the base 36. The base 36 has a mounting hole 37 and a mounting hole 38. The mounting hole 37 is a circular hole formed on the other side of the width direction of the base 36 and penetrates in the depth direction. The mounting hole 38 is formed on one side of the width direction of the base 36 and is an elongated hole that is long in the vertical direction and penetrates in the depth direction. The electromagnetic contactor 31 has a wide protrusion 39 that protrudes toward one side of the vertical direction at one of its vertical directions. The width dimension Wn2 of the notch 27 of the adapter plate 21 corresponds to the width dimension of the protrusion 39.

[0022] FIG. 4 is a diagram showing the mounting pitch of the electromagnetic contactor 31. As shown in FIG. Here, only the outline of the electromagnetic contactor 31 as seen from the front in the depth direction is shown. The electromagnetic contactor 31 has a mounting hole 33 formed on one side of the width direction at the other end of the vertical direction, a mounting hole 34 formed on the other side of the width direction at the other end of the vertical direction, a mounting hole 37 formed on the other side of the width direction at one end of the vertical direction, and a mounting hole 38 formed on one side of the width direction at one end of the vertical direction. The vertical pitch of the mounting holes 37 and 33, which are located diagonally, is Pv3, and the width pitch is Pw3. Here, as an example, Pv3 = approximately 60 mm, and Pw3 = approximately 35 mm. The vertical pitch of the mounting holes 34 and 38, which are located diagonally, is Pv4, and the width pitch is Pw4. Here, as an example, Pv4 = approximately 50 mm, and Pw4 = approximately 34 mm.

[0023] FIG. 5 is a diagram showing a conventional electromagnetic contactor 41. As shown in FIG. FIG. 1A shows the electromagnetic contactor 41 as viewed from the other side of the vertical direction, the other side of the width direction, and from the front in the depth direction. FIG. 1B shows the mounting pitch of the electromagnetic contactor 41. The electromagnetic contactor 41 has a mounting hole 43 formed on one side of the width direction at the other side of the vertical direction, a mounting hole 44 formed on the other side of the width direction at the other side of the vertical direction, a mounting hole 47 formed on the other side of the width direction at one side of the vertical direction, and a mounting hole 48 formed on one side of the width direction at one side of the vertical direction. For the diagonally arranged mounting holes 47 and 43, the vertical pitch is Pv5 and the width pitch is Pw5. Here, as an example, Pv5 = approximately 60 mm and Pw5 = approximately 50 mm. For the diagonally arranged mounting holes 44 and 48, the vertical pitch is Pv6 and the width pitch is Pw6. Here, as an example, Pv6 = approximately 58 mm and Pw6 = approximately 54 mm.

[0024] The current model electromagnetic contactor 31 and the conventional model electromagnetic contactor 41 have the following pitch relationship. Pv3=Pv5, Pw3 <Pw5 Pv4 <Pv6、 Pw4<Pw6 The pitches of the conventional electromagnetic contactor 41 and the A-type adapter plate 11 have the following relationship. Pv5=Pv1, Pw5=Pw1 The pitches of the conventional electromagnetic contactor 41 and the B-type adapter plate 21 have the following relationship. Pv6=Pv2, Pw6=Pw2

[0025] Installation method Next, a mounting method when replacing the conventional model electromagnetic contactor 41 with the current model electromagnetic contactor 31 will be described. In the case of type A, first, the mounting screws fastened to the diagonally opposite mounting holes 47 and 43 are released, and the electromagnetic contactor 41 of the conventional model is removed. Next, the current model electromagnetic contactor 31 is sandwiched between the A-type adapter plate 11. FIG. 6 is a diagram showing the state before clamping in the A type. (a) in the figure shows the adapter plate 11 and the electromagnetic contactor 31 as viewed from the other side in the vertical direction, the other side in the width direction, and from the front side in the depth direction. (b) in the figure shows the adapter plate 11 and the electromagnetic contactor 31 as viewed from one side in the vertical direction, one side in the width direction, and from the front side in the depth direction.

[0026] The base 32 of the electromagnetic contactor 31 is brought into contact with the surface of the adapter plate 11 with the base 32 facing the opposing plate 15 and the end plate 16. The adapter plate 11 is then slid to sandwich the base 32 of the electromagnetic contactor 31 between the substrate 12 and the opposing plate 15. At this time, the guide plate 19 comes into contact with the base 32, causing the tip end of the opposing plate 15 to rise, and the base 32 of the electromagnetic contactor 31 is guided between the substrate 12 and the opposing plate 15. The narrow protrusion 35 fits into the notch 17, thereby restricting the widthwise position of the electromagnetic contactor 31. Furthermore, the restricting plate 18 abuts against the other vertical side of the electromagnetic contactor 31, thereby restricting the vertical position of the electromagnetic contactor 31. At this time, the mounting hole 37 and the through-hole 13 overlap when viewed from the depth direction.

[0027] FIG. 7 is a diagram showing the state after clamping in the A type. In the figure, (a) shows the adapter plate 11 and the electromagnetic contactor 31 as viewed from the other side in the vertical direction, the other side in the width direction, and from the front side in the depth direction. In the figure, (b) shows the adapter plate 11 and the electromagnetic contactor 31 as viewed from the other side in the width direction. Then, the substrate 12 is interposed between the electromagnetic contactor 31 and the mounting surface S, and the electromagnetic contactor 31 is mounted on the mounting surface S via the adapter plate 11. That is, mounting screws are inserted into the overlapping mounting holes 37 and through holes 13 and fastened together to the mounting surface S, and mounting screws are inserted into the through holes 14 and fastened to the mounting surface S. At this time, the through holes 13 and through holes 14 have pitches in the vertical and width directions that correspond to the mounting holes 47 and mounting holes 43, respectively, so the screw holes that were used to screw in the electromagnetic contactor 41 of the conventional model can be used.

[0028] In the case of type B, first, the mounting screws fastened in the diagonally opposite mounting holes 44 and 48 are released, and the electromagnetic contactor 41 of the conventional model is removed. Next, the current model electromagnetic contactor 31 is sandwiched between the B type adapter plate 21. FIG. 8 is a diagram showing the state before clamping in type B. In the figure, (a) shows the adapter plate 21 and the electromagnetic contactor 31 as viewed from the other side in the vertical direction, the other side in the width direction, and from the front side in the depth direction. In the figure, (b) shows the adapter plate 21 and the electromagnetic contactor 31 as viewed from one side in the vertical direction, one side in the width direction, and from the front side in the depth direction.

[0029] The base 36 of the electromagnetic contactor 31 is directed toward the opposing plate 25 and the end plate 26, and the back surface of the electromagnetic contactor 31 is brought into contact with the surface of the adapter plate 21. Then, the adapter plate 21 is slid to sandwich the base 36 of the electromagnetic contactor 31 between the substrate 22 and the opposing plate 25. At this time, the guide plate 29 comes into contact with the base 36, causing the tip side of the opposing plate 25 to rise, and the base 36 of the electromagnetic contactor 31 is guided between the substrate 22 and the opposing plate 25. Then, the wide protrusion 39 fits into the notch 27, thereby restricting the widthwise position of the electromagnetic contactor 31. Furthermore, the restricting plate 28 abuts against one vertical side of the electromagnetic contactor 31, thereby restricting the vertical position of the electromagnetic contactor 31. At this time, the mounting hole 34 and the through-hole 23 overlap when viewed from the depth direction.

[0030] FIG. 9 is a diagram showing the state after clamping in type B. In the figure, (a) shows the adapter plate 21 and the electromagnetic contactor 31 as viewed from one side in the vertical direction, one side in the width direction, and from the front in the depth direction, while (b) shows the adapter plate 21 and the electromagnetic contactor 31 as viewed from one side in the width direction. Then, the substrate 22 is interposed between the electromagnetic contactor 31 and the mounting surface S, and the electromagnetic contactor 31 is mounted on the mounting surface S via the adapter plate 21. That is, mounting screws are inserted into the overlapping mounting holes 34 and through holes 23 and fastened together to the mounting surface S, and mounting screws are inserted into the through holes 24 and fastened to the mounting surface S. At this time, the through holes 23 and 24 have pitches in the vertical and width directions that correspond to the mounting holes 44 and 48, respectively, so the screw holes that were used to screw in the electromagnetic contactor 41 of the conventional model can be used.

[0031] <<Action and Effect>> Next, the main effects of the embodiment will be described. The adapter plate 11 (or 21) includes a substrate 12 (or 22). A through-hole 13 (or 23) is formed in one (or the other) longitudinal side of the substrate 12 (or 22). A through-hole 14 (or 24) is formed in the other (or the other) longitudinal side of the substrate 12 (or 22). A counter plate 15 (or 25) is formed in the other (or the other) longitudinal side of the substrate 12 (or 22) facing the substrate 12 (or 22) so as to face the substrate 12 (or 22) and be able to sandwich the electromagnetic contactor 31. When the electromagnetic contactor 31 is sandwiched between the substrate 12 (or 22) and the counter plate 15 (or 25), a mounting hole 34 (or 37) formed in the electromagnetic contactor 31 overlaps with the through-hole 13 (or 23). Mounting screws are inserted into the mounting holes 34 (or 37) and the through holes 13 (or 23) and fastened together to the mounting surface S, and mounting screws are inserted into the through holes 14 (or 24) and fastened to the mounting surface S. In this way, the electromagnetic contactor 31 is fastened to the mounting surface S with one board 12 (or 22) sandwiched between them, so protrusion of the electromagnetic contactor 31 is suppressed, and space can be saved. In other words, compared to when a current model is mounted directly to the mounting surface S, only the thickness t (t = 1.0 mm) of the board 12 (or 22) protrudes forward in the depth direction. Also, because fastening is required with mounting screws at only two locations, there is no increase in the number of mounting screws or the number of tightening steps compared to normal mounting without using the adapter plate 11 (or 21).

[0032] An end plate 16 (or 26) is formed on the substrate 12 (or 22) from the other (or one) side in the vertical direction toward the front side in the depth direction. The opposing plate 15 (or 25) is formed to protrude from the front side in the depth direction of the end plate 16 (or 26) toward one (or the other) side in the vertical direction. This allows the opposing plate 15 (or 25) to be formed by a simple bending process. The opposing plate 15 (or 25) is formed so that it approaches the substrate 12 (or 22) in one direction (or the other) in the vertical direction. This allows even slight dimensional errors in the electromagnetic contactor 31 or the adapter plate 11 (or 21) to be absorbed and the electromagnetic contactor 31 can be firmly supported by the opposing plate 15 (or 25).

[0033] The opposing plate 15 (or 25) has a notch 17 (or 27) that is recessed toward one (or the other) side in the vertical direction. The notch 17 (or 27) fits into the electromagnetic contactor 31, thereby restricting the widthwise position of the electromagnetic contactor 31. This allows positioning in the widthwise direction, making it easier to assemble the electromagnetic contactor 31 and the adapter plate 11 (or 21). A restricting plate 18 (or 28) bent toward the front in the depth direction is formed at the tip of the opposing plate 15 (or 25). The restricting plate 18 (or 28) abuts against the electromagnetic contactor 31 to restrict the vertical position of the electromagnetic contactor 31. This allows for vertical positioning, making it easier to assemble the electromagnetic contactor 31 and the adapter plate 11 (or 21).

[0034] A guide plate 19 (or 29) is formed at the tip of the opposing plate 15 (or 25), which moves toward the front in the depth direction as it moves toward one side (or the other) in the vertical direction. The guide plate 19 (or 29) guides the electromagnetic contactor 31 between the substrate 12 (or 22) and the opposing plate 15 (or 25) when the electromagnetic contactor 31 is sandwiched between them. This allows for smooth sandwiching, facilitating the assembly of the electromagnetic contactor 31 and the adapter plate 11 (or 21). The through-hole 14 (or 24) is formed on one side (or the other side) of the substrate 12 (or 22) in the width direction. The through-hole 13 (or 23) is formed on the other side (or one side) of the substrate 12 (or 22) in the width direction. This allows the adapter plate 11 (or 21) to be firmly fixed at two diagonal points.

[0035] The adapter plate 11 (or 21) is used when replacing a screwed conventional model with the current model electromagnetic contactor 31. Therefore, compatibility between the conventional model and the current model can be achieved. The pitches of the through holes 13 (or 23) and 14 (or 24) in the vertical and width directions correspond to the pitch of the mounting holes 34 (or 37) formed in the conventional model. This allows the adapter plate 11 (or 21) to be fixed using the screw holes that were used to screw the conventional model. Therefore, no design changes are required when replacing the conventional model with the current model.

[0036] The mounting structure for the electromagnetic contactor 31 includes the electromagnetic contactor 31 and an adapter plate 11 (or 21). The electromagnetic contactor 31 has a mounting hole 37 (or 34) formed on one (or the other) longitudinal side. When the electromagnetic contactor 31 is mounted on a predetermined mounting surface S, the adapter plate 11 (or 21) is interposed between the electromagnetic contactor 31 and the mounting surface S. The adapter plate 11 (or 21) includes a substrate 12 (or 22). A through hole 13 (or 23) is formed on one (or the other) longitudinal side of the substrate 12 (or 22). A through hole 14 (or 24) is formed on the other (or one) longitudinal side of the substrate 12 (or 22). A facing plate 15 (or 25) is formed on the other (or one) longitudinal side of the substrate 12 (or 22) so as to face the substrate 12 (or 22) and be able to sandwich the electromagnetic contactor 31. When the electromagnetic contactor 31 is sandwiched between the substrate 12 (or 22) and the opposing plate 15 (or 25), mounting screws are inserted into the overlapping mounting hole 37 (or 34) and the through hole 13 (or 23) and fastened together to the mounting surface S. Furthermore, mounting screws are inserted into the through hole 14 (or 24) and fastened to the mounting surface S, so that the electromagnetic contactor 31 is mounted to the mounting surface S via the adapter plate 11 (or 21). In this way, because the electromagnetic contactor 31 is fastened to the mounting surface S with one substrate 12 (or 22) sandwiched between them, protrusion of the electromagnetic contactor 31 is suppressed, thereby achieving space savings. In other words, compared to when a current model is mounted directly to the mounting surface S, only the thickness t (t = 1.0 mm) of the substrate 12 (or 22) protrudes forward in the depth direction. Furthermore, since fastening is performed using mounting screws at only two locations, the number of mounting screws and the number of tightening steps do not increase compared to normal mounting without using the adapter plate 11 (or 21).

[0037] The electromagnetic contactor 31 is mounted by forming a mounting hole 37 (or 34) for screwing on one (or the other) vertical side of the electromagnetic contactor 31. A through-hole 13 (or 23) is formed on one (or the other) vertical side of the substrate 12 (or 22) of the adapter plate 11 (or 21). A through-hole 14 (or 24) is formed on the other (or the other) vertical side of the substrate 12 (or 22). A counter plate 15 (or 25) is formed on the other (or the other) vertical side of the substrate 12 (or 22) facing the substrate 12 (or 22) so that the electromagnetic contactor 31 can be sandwiched between them. When mounting the electromagnetic contactor 31 on a predetermined mounting surface S, the electromagnetic contactor 31 is sandwiched between the substrate 12 (or 22) and the counter plate 15 (or 25), with the substrate 12 (or 22) interposed between the electromagnetic contactor 31 and the mounting surface S. Mounting screws are inserted into the overlapping mounting hole 37 (or 34) and through hole 13 (or 23) and fastened together to the mounting surface S. The electromagnetic contactor 31 is mounted to the mounting surface S via the adapter plate 11 (or 21) by inserting a mounting screw into the through hole 14 (or 24) and fastening it to the mounting surface S. In this way, the electromagnetic contactor 31 is fastened to the mounting surface S via one board 12 (or 22), which suppresses protrusion of the electromagnetic contactor 31 and saves space. In other words, compared to when a current model is mounted directly to the mounting surface S, only the thickness t (t = 1.0 mm) of the board 12 (or 22) protrudes forward in the depth direction. In addition, because fastening is required with mounting screws at only two locations, there is no increase in the number of mounting screws or the number of tightening steps compared to normal installation without using the adapter plate 11 (or 21).

[0038] Next, a comparative example will be described. FIG. 10 is a diagram showing a comparative example. (a) in the figure shows the adapter plate 51 of the comparative example as seen from the other side in the vertical direction, the other side in the width direction, and from the front in the depth direction. (b) in the figure shows the adapter plate 51 of the comparative example as seen from the front in the depth direction. (c) in the figure shows the adapter plate 51 of the comparative example as seen from the other side in the width direction. Mounting holes 53 corresponding to the pitch of the current model are formed in the base plate 52 of the adapter plate 51. The adapter plate 51 is bent so that both sides in the vertical direction move parallel to the back in the depth direction, and mounting holes 54 corresponding to the pitch of the conventional model are formed there.

[0039] Adapter plate 51 is fastened to mounting surface S by mounting screws inserted into mounting holes 54, and the current model is fastened to mounting holes 53 with mounting screws. Board 52 protrudes forward in the depth direction from mounting surface S by a dimension D. Therefore, when the current model is mounted to mounting surface S via adapter plate 51, the current model protrudes more than when the current model is mounted directly to mounting surface S. Furthermore, a total of four mounting screws are required: two to mount adapter plate 51 and two to mount the current model. Therefore, when the current model is mounted to mounting surface S via adapter plate 51, the number of mounting screws and the number of tightening steps increase compared to when the current model is mounted directly to mounting surface S.

[0040] Although the present invention has been described above with reference to a limited number of embodiments, the scope of the invention is not limited thereto, and modifications of the embodiments based on the above disclosure will be obvious to those skilled in the art. [Explanation of symbols]

[0041] 11...adapter plate, 12...substrate, 13...through hole, 14...through hole, 15...opposing plate, 16...end plate, 17...notch portion, 18...regulating plate, 19...guide plate, 21...adapter plate, 22...substrate, 23...through hole, 24...through hole, 25...opposing plate, 26...end plate, 27...notch portion, 28...regulating plate, 29...guide plate, 31...electromagnetic contactor, 32...base, 33...mounting hole, 34...mounting hole, 35...protrusion, 36...base, 37...mounting hole, 38...mounting hole, 39...protrusion, 41...electromagnetic contactor, 43...mounting hole, 44...mounting hole, 47...mounting hole, 48...mounting hole, 51...adapter plate, 52...substrate, 53...mounting hole, 54...mounting hole, S...mounting surface

Claims

1. a substrate; a first through hole is formed in one longitudinal direction of the substrate; a second through hole is formed on the other side of the substrate in the vertical direction; an opposing plate is formed on the other side of the substrate in the vertical direction, facing the substrate and capable of sandwiching an electromagnetic contactor therebetween; an adapter plate characterized in that, when the electromagnetic contactor is sandwiched between the substrate and the opposing plate, a mounting hole formed in the electromagnetic contactor overlaps with the first through hole, mounting screws are inserted into the mounting hole and the first through hole and fastened together to the mounting surface, and a mounting screw is inserted into the second through hole and fastened to the mounting surface.

2. An end plate is formed on the substrate from the other side in the vertical direction toward the front side in the depth direction, 2. The adapter plate according to claim 1, wherein the opposing plate is formed so as to protrude in one direction in the vertical direction from a front side in the depth direction of the end plate.

3. 2. The adapter plate according to claim 1, wherein the opposing plate is formed so as to come closer to the substrate in one longitudinal direction.

4. The opposing plate has a notch formed therein that is recessed toward the other side in the vertical direction, The adapter plate according to claim 1 , wherein the notch fits into the electromagnetic contactor to regulate the position of the electromagnetic contactor in the width direction.

5. A restricting plate bent toward the front in the depth direction is formed at the tip of the opposing plate, 2. The adapter plate according to claim 1, wherein the regulating plate abuts against the electromagnetic contactor to regulate the vertical position of the electromagnetic contactor.

6. A guide plate is formed at the tip of the opposing plate, the guide plate being directed toward the front in the depth direction as it moves toward one side in the vertical direction, 2. The adapter plate according to claim 1, wherein the guide plate guides the electromagnetic contactor between the substrate and the opposing plate when the electromagnetic contactor is sandwiched between the substrate and the opposing plate.

7. the second through-hole is formed on one side of the substrate in a width direction, 2. The adapter plate according to claim 1, wherein the first through-hole is formed on the other side of the base plate in the width direction.

8. 2. The adapter plate according to claim 1, which is used when replacing a screwed conventional model with the electromagnetic contactor of the current model.

9. 9. The adapter plate according to claim 8, wherein the pitch of the first through holes and the second through holes in the vertical and width directions corresponds to the pitch of the mounting holes formed in the conventional model.

10. an electromagnetic contactor having a mounting hole formed on one side in the longitudinal direction; an adapter plate that is interposed between the electromagnetic contactor and a predetermined mounting surface when the electromagnetic contactor is mounted on the predetermined mounting surface, The adapter plate a substrate; a first through hole is formed in one longitudinal direction of the substrate; a second through hole is formed on the other side of the substrate in the vertical direction; an opposing plate is formed on the other side of the substrate in the vertical direction, facing the substrate and capable of sandwiching the electromagnetic contactor therebetween; an electromagnetic contactor mounting structure characterized in that, when the electromagnetic contactor is sandwiched between the substrate and the opposing plate, a mounting screw is inserted into one of the overlapping mounting holes and the first through hole and fastened together to the mounting surface, and a mounting screw is inserted into the second through hole and fastened to the mounting surface, thereby mounting the electromagnetic contactor to the mounting surface via the adapter plate.

11. A mounting hole for screw fastening is formed on one side of the longitudinal direction of the electromagnetic contactor, a first through-hole is formed in one longitudinal direction of the base plate of the adapter plate; a second through hole is formed in the substrate on the other side in the vertical direction; an opposing plate is formed on the other side of the substrate in the vertical direction, the opposing plate being capable of sandwiching the electromagnetic contactor therebetween so as to face the substrate; A method for mounting the electromagnetic contactor on a predetermined mounting surface, characterized in that when mounting the electromagnetic contactor on the mounting surface, the electromagnetic contactor is sandwiched between the substrate and the opposing plate, the substrate is interposed between the electromagnetic contactor and the mounting surface, a mounting screw is inserted into one of the overlapping mounting holes and the first through hole and fastened together to the mounting surface, and a mounting screw is inserted into the second through hole and fastened to the mounting surface, thereby mounting the electromagnetic contactor on the mounting surface via the adapter plate.

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