Terminal block assembly

Abstract

To integrate a terminal block of a terminal block assembly with a bracket and prevent an unnatural force from acting between the terminal block and the bracket.SOLUTION: A terminal block assembly comprises a terminal block for holding terminals of a plurality of wires, a shield member, and a metallic tabular bracket for holding the shield member, and the bracket is attached to a projection that an apparatus housing includes. The bracket has a shape which is long in a first direction in order to fit the shield member in the first direction, and the terminal block includes a pin to be integrated with the bracket. The bracket includes: a connection plate part including a hole which is larger than an outer diameter of the pin and through which the pin is inserted; and a fixing plate part which is fixed to the projection while being placed on a tip of the projection from a fitting direction orthogonal to the first direction. The fixing plate part includes a contact piece which can be brought into contact with the tip with respect to the direction orthogonal to the fitting direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a terminal block assembly. [Background technology]

[0002] Terminal block assemblies are used to electrically connect electrical devices in vehicles and the like. For example, to connect a motor as an electrical device to an inverter, a terminal block assembly is mounted on the motor case (device housing), and electric wires extending from the terminal block assembly are connected to a terminal block on the inverter side. Patent Document 1 discloses such a terminal block assembly. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2015 / 072335 Summary of the Invention [Problem to be solved by the invention]

[0004] FIG. 7 is an explanatory diagram showing the schematic configuration of a conventional terminal block assembly 90. The terminal block assembly 90 includes a terminal block 91 that holds terminals 94 of multiple electric wires 95, a shielding member 92 made of braid for the multiple electric wires 95, and a metal bracket 93 that holds the shielding member 92. The terminal block 91 is mounted on a case 99 that is an equipment housing, and the bracket 93 is fixed to a part 98 of the case 99 by, for example, a bolt 100. In FIG. 7, the shielding member 92 is shown by a two-dot chain line, and the case 99 is shown by a dashed line. The shielding member 92 can be electrically connected to the case 99 via the bracket 93, and the configuration including the bracket 93 functions as ground.

[0005] Terminal block 91 has pin 96 for integrating with bracket 93, and a hole 97 for passing pin 96 is provided in part of bracket 93. By integrating terminal block 91 and bracket 93, handling becomes easy and work efficiency improves during the assembly work of mounting terminal block assembly 90 on case 99.

[0006] However, during the assembly process, the displacement of the terminal block 91 on the case 99 may be constrained before the bracket 93 is. Then, the bracket 93 is attached to a part 98 of the case 99 at both sides with bolts 100. During this attachment, if the bracket 93 is displaced by the tightening torque of one bolt 100 used first while the displacement of the terminal block 91 is constrained, a large shear force (unreasonable force) acts on the pin 96. This may cause the pin 96 to break.

[0007] Therefore, an object of the present disclosure is to provide a terminal block assembly that allows the terminal block and the bracket to be integrated and that does not cause excessive force to act between the terminal block and the bracket. [Means for solving the problem]

[0008] The terminal block assembly of the present disclosure includes a terminal block that is mounted on an equipment housing and holds terminals of a plurality of electric wires, a shielding member that is arranged opposite the plurality of electric wires, and a metal plate-shaped bracket that holds the shielding member. The bracket is attached to a protrusion of the equipment housing, and the shielding member can be electrically connected to the equipment housing via the bracket. The terminal block has a shape that is long in the first direction to hold the plurality of terminals arranged in the first direction, and the bracket has a shape that is long in the first direction to attach the shielding member along the first direction. The terminal block has a pin for integrating with the bracket, and the bracket has a connecting plate portion that has a hole that is larger than the outer diameter of the pin and through which the pin passes, and a fixing plate portion that is fixed to the protrusion by resting on the tip of the protrusion from an attachment direction perpendicular to the first direction, and the fixing plate portion has a contact piece that can come into contact with the tip in a direction perpendicular to the attachment direction. [Effects of the Invention]

[0009] According to the terminal block assembly of the present disclosure, the terminal block and the bracket can be integrated, and no excessive force acts between the terminal block and the bracket. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a plan view of a terminal block assembly. [Figure 2] FIG. 2 is a front view of the terminal block assembly. [Figure 3] FIG. 3 is an exploded perspective view of the terminal block assembly. [Figure 4] FIG. 4 is an explanatory diagram showing a part of the terminal block assembly. [Figure 5] FIG. 5 is an explanatory view showing another part of the terminal block assembly. [Figure 6] FIG. 6 is an enlarged view of the fixing plate portion as seen from below. [Figure 7]FIG. 7 is an explanatory diagram showing a schematic configuration of a conventional terminal block assembly. DETAILED DESCRIPTION OF THE INVENTION

[0011] <Summary of Embodiments of the Present Disclosure> The following provides an outline of embodiments of the present disclosure. (1) A terminal block assembly of this embodiment includes a terminal block that is mounted on an equipment housing and holds terminals of a plurality of electric wires, a shielding member that is arranged opposite the plurality of electric wires, and a metal plate-shaped bracket that holds the shielding member. The bracket is attached to a protrusion on the equipment housing, and the shielding member can be electrically connected to the equipment housing via the bracket. The terminal block has a shape that is long in the first direction to hold the plurality of terminals arranged in the first direction, and the bracket has a shape that is long in the first direction to attach the shielding member along the first direction. The terminal block has a pin for integrating with the bracket, and the bracket has a connecting plate portion that has a hole that is larger than the outer diameter of the pin and through which the pin passes, and a fixing plate portion that is fixed to the protrusion by resting on the tip of the protrusion from an attachment direction perpendicular to the first direction, and the fixing plate portion has a contact piece that can come into contact with the tip in a direction perpendicular to the attachment direction.

[0012] According to the terminal block assembly of this embodiment, the pin of the terminal block is inserted into the hole of the connecting plate portion of the bracket, and the terminal block and the bracket are integrated. The hole is larger than the outer diameter of the pin, and the terminal block and the bracket are integrated in a state where they can be displaced relative to each other. By integrating the terminal block and the bracket, the terminal block assembly becomes easier to handle and the terminal block assembly can be easily installed in the equipment housing.

[0013] The bracket is attached to the protrusion of the device housing at its fixing plate portion. During attachment, even if the bracket attempts to displace, for example, with a component in the first direction, the bracket's contact piece comes into contact with the tip of the protrusion, preventing the bracket from displacing. Even when the terminal block is constrained from displacing on the device housing, the bracket is also unable to displace relative to the protrusion of the device housing. Therefore, no large shear force (unreasonable force) acts on the pin of the terminal block, preventing breakage of the terminal block.

[0014] (2) Preferably, the bracket has the fixing plate portion having the contact piece on each side in the first direction. This configuration makes the bracket immovable in both directions in the first direction. It may also make the bracket immovable in a pivotal movement around the fixing plate portion. Therefore, for example, when the fixing plate portion is fixed to the protrusion by a bolt, the bracket does not pivot due to the tightening torque of the bolt.

[0015] (3) Preferably, the shielding member has a sheet shape provided on only one side of the plurality of electric wires so as to face the electric wires, and the bracket has a mounting plate portion provided along the edge of the sheet-shaped shielding member. In this case, the bracket does not need to have a shape that completely surrounds the sheet-shaped shielding member, which allows for a simplified configuration.

[0016] (4) Preferably, in the terminal block assembly according to any one of (1) to (3), the tip of the protrusion has a cylindrical shape, and the contact piece has an arcuate portion that is arcuate along the outer circumferential surface of the tip, and a pair of linear portions extending linearly from both ends of the arcuate portion. In this case, the contact piece of the bracket fits into the tip of the protrusion, making the bracket immovable. The linear portions increase the rigidity of the bracket.

[0017] (5) Preferably, in the terminal block assembly of (4), the arc portion has a continuous arc shape along the outer circumferential surface of the tip portion, and the linear portion and the arc portion are continuous. In this case, the rigidity of the bracket is further increased.

[0018] (6) Preferably, in the terminal block assembly according to any one of (1) to (5), the terminal block has an arm extending in the first direction, and the pin is provided at the tip of the arm. In this case, the arm is cantilevered, and the pin is provided at the tip of the arm. Even with this structure, when the terminal block assembly is installed in an equipment housing, excessive force is not applied to the pin and arm of the terminal block, preventing breakage of the terminal block.

[0019] (7) Preferably, in the terminal block assembly according to any one of (1) to (6), the direction of the center line of the pin is the same as the mounting direction. In this case, the terminal block and the bracket can be displaced in a direction perpendicular to the mounting direction within the range of the gap between the pin and the hole. However, when the fixing plate of the bracket rests on the tip of the protrusion of the device housing, the bracket cannot be displaced.

[0020] (8) Preferably, in the terminal block assembly according to any one of (1) to (7), when the terminal block is a second terminal block, the terminal block assembly further includes a first terminal block that is directly attached to the device housing, the second terminal block is fixed to the first terminal block, and the fixing plate portion of the bracket extends to a position that protrudes from the first terminal block in the first direction. In this case, the bracket is fixed to a protrusion of the device housing while straddling the first terminal block. This facilitates the process of fixing the bracket to the device housing.

[0021] <Details of the embodiment of the present disclosure> Hereinafter, details of embodiments of the present disclosure will be described with reference to the drawings. Note that at least some of the embodiments described below may be combined in any manner.

[0022] [Overall configuration of terminal block assembly] FIG. 1 is a plan view of the terminal block assembly 10. FIG. 2 is a front view of the terminal block assembly 10. FIG. 3 is an exploded perspective view of the terminal block assembly 10. The terminal block assembly 10 is used to connect multiple electrical devices together via electric wires 15. The multiple electrical devices include an on-vehicle motor and inverter. The terminal block assembly 10 of this embodiment is mounted on the case of the motor. This case will be referred to as the device housing 7 in the following description. In this embodiment, three-phase (three) electric wires 15 are connected to the terminal block assembly 10, but the number of electric wires 15 can be changed.

[0023] The terminal block assembly 10 includes a first terminal block 11, a second terminal block 12, a shield member 13, and a bracket 14. The first terminal block 11 is attached directly to the device housing 7. The first terminal block 11 is fixed to the device housing 7 at its four corners with bolts (not shown). In Figures 2 and 3, the device housing 7 is shown by a two-dot chain line. The second terminal block 12 is attached to the first terminal block 11. The second terminal block 12 is mounted on the device housing 7 via the first terminal block 11. The device housing 7 has two protrusions 8. The bracket 14 is fixed to the protrusions 8 with bolts 80. At least the portion of the device housing 7 including the protrusions 8 is made of metal.

[0024] The shielding member 13 is disposed opposite the three electric wires 15. The shielding member 13 is made of metal and is configured by braiding wires. The shielding member 13 has a rectangular sheet shape and is disposed only on one side of the three electric wires 15. The bracket 14 is made of metal and is a plate-shaped member. The bracket 14 holds the shielding member 13. The structure for holding the shielding member 13 will be described later.

[0025] [Regarding the first terminal block 11 and the second terminal block 12] The first terminal block 11 and the second terminal block 12 are made of resin and are formed by injection molding using a thermoplastic resin. The first terminal block 11 has a connector connection portion 17. A mating connector of an electric wire extending from another device (not shown) is connected to the connector connection portion 17. The connector connection portion 17 is provided offset to one side in the width direction of the first terminal block 11 (the left side in FIGS. 1 and 2). When the first terminal block 11 and the second terminal block 12 are combined, the three electric wires 15 and terminals 16 are located in the center in the width direction of the first terminal block 11. The first terminal block 11 has a terminal block 81 that is electrically connected to the terminals 16 of the three electric wires 15 included in the second terminal block 12.

[0026] The second terminal block 12 holds three terminals 16 for three electric wires 15. The second terminal block 12 has a housing portion 30 that holds the three terminals 16. The terminals 16 are insert-molded into the housing portion 30, which is made of resin, and the terminals 16 and the housing portion 30 are integrated. The housing 30 fits into the first terminal block 11, and the second terminal block 12 is fixed to the first terminal block 11. The three terminals 16 are arranged side by side in one direction (first direction). Three electric wires 15 extending from the three terminals 16 are arranged side by side in one direction (first direction). The second terminal block 12 (housing portion 30) has a shape that is long in the first direction in order to hold the three terminals 16 arranged side by side in the first direction.

[0027] Here, the directions of the terminal block assembly 10 of the present disclosure will be defined. The direction in which three (plural) terminals 16 are lined up (the first direction) is defined as the width direction. The up-down direction is defined assuming that the first terminal block 11 is the upper terminal block and the second terminal block 12 is the lower terminal block. Note that this up-down direction is a direction defined for explaining the terminal block assembly 10, and does not necessarily coincide with the vertical up-down direction when the terminal block assembly 10 is actually mounted in the device housing 7. The direction perpendicular to both the width direction and the up-down direction is defined as the front-rear direction. The electric wires 15 are provided extending in the front-rear direction. An XYZ Cartesian coordinate system is shown in each figure. The X direction is the width direction, the Y direction is the front-rear direction, and the Z direction is the up-down direction.

[0028] The second terminal block 12 has pins 36, 39 for integrating the second terminal block 12 and the bracket 14. More specifically, the second terminal block 12 has a pair of arms 31, 32. The arms 31, 32 extend from the housing portion 30 on both sides in the width direction. A first pin 39 is provided at the tip of the first arm 31. A second pin 36 is provided at the tip of the second arm 32. The first arm 31, the second arm 32, the first pin 39, and the second pin 36 are molded integrally with the housing portion 30 and are made of resin.

[0029] FIG. 4 is an explanatory diagram showing a portion (one side in the width direction) of the terminal block assembly 10. FIG. 5 is an explanatory diagram showing another portion (the other side in the width direction) of the terminal block assembly 10. As shown in FIG. 4, a first hole 40 through which a first pin 39 passes is provided in the bracket 14. The first hole 40 is larger than the outer diameter (cross section) of the first pin 39 (pin main body portion 39a). The first pin 39 has the pin main body portion 39a, which has the same outer diameter along its centerline (a half circle), and a locking portion 39b, which has an outer diameter larger than that of the pin main body portion 39a. The locking portion 39b is larger than the first hole 40 and is elastically deformable. In this embodiment, the pin main body portion 39a and the locking portion 39b have a two-piece shape, so the first pin 39 is elastically deformable as a whole. When the first pin 39 is inserted into the first hole 40, the locking portion 39b contracts from its expanded shape, and after the first pin 39 is inserted, the locking portion 39b returns to its expanded shape due to its elastic restoring force. The locking portion 39b prevents the first pin 39 from coming out of the bracket 14.

[0030] 5, a second hole 41 through which the second pin 36 passes is provided in the bracket 14. The inner diameter of the second hole 41 is larger than the outer diameter of the second pin 36. The cross section of the second pin 36 along its center line has the same shape (circular) as the second hole 41. The bracket 14 and the second terminal block 12 can be displaced relative to each other in the vertical direction by the first pin 39 and the second pin 36, but cannot be separated from each other (they are integrated). Within the range where the pins 39, 36 contact the holes 40, 41, the bracket 14 and the second terminal block 12 can be slightly displaced in the width direction and the front-rear direction.

[0031] [Shielding member 13 and bracket 14] As shown in FIG. 3 , bracket 14 has a shape that is elongated in the width direction (X direction) so that edge portion 13e of shielding member 13 can be attached thereto. Bracket 14 is made of metal (e.g., stainless steel). Bracket 14 has an attachment plate portion 20, a connecting plate portion 21, and a fixing plate portion 22. Attachment plate portion 20 is a portion for attaching edge portion 13e of shielding member 13. Attachment plate portion 20 is provided along edge portion 13e of shielding member 13 and is elongated in the width direction. Attachment plate portion 20 has a base piece 82 located below edge portion 13e of shielding member 13 and a bent piece 83 for sandwiching edge portion 13e from above between the base piece 82 and the attachment plate portion 20. Although bracket 14 has a bent portion in connecting plate portion 21, bracket 14 is plate-shaped and does not have a shape that completely surrounds shielding member 13, which is sheet-shaped.

[0032] The shielding member 13 is attached to the bracket 14 below the three electric wires 15 and offset to the other side in the width direction (the right side in Figs. 1 and 2) relative to these electric wires 15. In Figs. 1 and 2, the center line passing through the center of the bundle of three electric wires 15 in the width direction is indicated as "L1," and the center line passing through the center of the shielding member 13 in the width direction is indicated as "L2." The center lines L1 and L2 do not coincide in the width direction.

[0033] 3, the connecting plate portions 21 are provided on both widthwise sides of the mounting plate portion 20. The connecting plate portion 21 on one widthwise side has a first hole 40 through which the first pin 39 passes. The connecting plate portion 21 on the other widthwise side has a second hole 41 through which the second pin 36 passes.

[0034] The bracket 14 has a fixing plate portion 22 on each side in the width direction. The fixing plate portion 22 extends from the connecting plate portion 21. The fixing plate portions 22 on both sides are fixed to two protrusions 8 that are part of the device housing 7 with bolts 80. As shown in FIG. 1 , the bracket 14 is long in the width direction (X direction), and the connecting plate portion 21 has a shape that is bent in one direction in the front-rear direction (Y direction). The fixing plate portions 22 on both sides in the width direction are provided to extend so as to widen the widthwise spacing between them. The fixing plate portions 22 on both sides in the width direction are provided to extend to positions that protrude from the first terminal block 11 in the width direction. Therefore, the bracket 14 is fixed to the protrusions 8 of the device housing 7 while spanning the first terminal block 11 in the width direction.

[0035] The fixing plate portion 22 is fixed to the protrusion 8 while resting on the tip portion 9 of the protrusion 8 (see FIG. 2). The direction from top to bottom (vertical direction) is the attachment direction of the bracket 14 to the protrusion 8. The fixing plate portion 22 is fixed to the protrusion 8 while resting on the tip portion 9 of the protrusion 8 from an attachment direction perpendicular to the width direction (X direction). By attaching the bracket 14 to the protrusion 8, the shielding member 13 can be electrically connected to the device housing 7 via the bracket 14. The shielding member 13 is electrically connected to the reference potential point through the device housing 7.

[0036] The projection 8 is provided with a screw hole 85 (see FIG. 3) that opens on the top surface. A bolt 80 is fastened into the screw hole 85, thereby fixing the bracket 14 to the device housing 7. A hole 86 through which the screw shaft of the bolt 80 passes is provided in the flat plate portion 84 of the fixing plate portion 22.

[0037] FIG. 6 is an enlarged view of the fixing plate portion 22 as viewed from below. In FIG. 6, the protrusion 8 is indicated by a two-dot chain line. As described above, the mounting direction of the bracket 14 to the protrusion 8 is from top to bottom (vertical direction). The fixing plate portion 22 has a contact piece 23 that can come into contact with the tip 9 of the protrusion 8 in a direction perpendicular to the mounting direction during mounting. The contact piece 23 is provided on each of a pair of fixing plate portions 22 on both sides of the bracket 14 in the width direction (see FIG. 3). In this embodiment, the contact piece 23 can come into contact with the tip 9 of the protrusion 8 in the front-rear direction and the width direction.

[0038] In FIG. 6 , the tip 9 of the protrusion 8 has a cylindrical shape. The contact piece 23 contacts the tip 9 in the front-rear and width directions, so the contact piece 23 has an arc portion 24 and a pair of straight portions 25. The arc portion 24 and the straight portion 25 are bent at right angles from the flat plate portion 84 of the fixing plate portion 22 that rests on the upper surface of the protrusion 8. The arc portion 24 has an arc shape that follows the outer circumferential surface of the tip 9. The straight portions 25 extend linearly from both ends of the arc portion 24. The arc portion 24 is provided within a range of 180 degrees from the center of the tip 9. The arc portion 24 has a continuous arc shape that follows the outer circumferential surface of the tip 9. The straight portions 25 and the arc portion 24 are continuous.

[0039] The function of the contact piece 23 of the bracket 14 will be described (see FIGS. 1, 2 and 3). The direction of the center lines of the first pin 39 and the second pin 36 is the same as the mounting direction (up-down direction) of the bracket 14 to the protrusion 8. Before the fixing plate portions 22 on both sides of the width direction of the bracket 14 are placed on the protrusion 8, the bracket 14 is displaceable relative to the second terminal block 12 in directions perpendicular to the mounting direction (width direction and front-rear direction). The range over which the bracket 14 is displaceable is the range of the gap between the first pin 39 and the first hole 40 and the range of the gap between the second pin 36 and the second hole 41.

[0040] When the fixing plate portion 22 of the bracket 14 is placed on the protrusion 8, the tip portion 9 is interposed in the width direction between a portion 24p of the arc portion 24 of the contact piece 23 and the straight portion 25 on the opposite side of the fixing plate portion 22 on one widthwise side of the bracket 14 (the left side in FIG. 1). The tip portion 9 is interposed in the width direction between a portion 24q of the arc portion 24 of the contact piece 23 and the straight portion 25 on the opposite side of the arc portion 24. This restricts the bracket 14 from being displaced in the width direction.

[0041] In each of the fixing plate portions 22 on both widthwise sides of the bracket 14, the tip portion 9 is interposed in the front-rear direction between the other portion 24r of the arc portion 24 of the contact piece 23 and the straight portion 25 on the opposite side thereof, thereby restricting displacement of the bracket 14 in the front-rear direction. As a result, when bracket 14 is placed on tip 9 of projection 8, displacement of bracket 14 in the width direction and front-rear direction is restricted by contact piece 23. As a result, no shear force (excessive force) acts on pins 39, 36.

[0042] [Connecting structure between second terminal block 12 and bracket 14] The second terminal block 12 and the bracket 14 are pre-assembled and integrated before the terminal block assembly 10 is mounted in the device housing 7. The structure for this integration will be described. 2 and 4, first arm 31 is provided in housing portion 30, extending from first resin portion 87 that covers a portion of terminal 16 on one widthwise side. First resin portion 87 to which first arm 31 is connected is a resin portion that covers the connection portion between terminal 16 on one widthwise side and electric wire 15. A first pin 39 protrudes downward from the tip of first arm 31.

[0043] As shown in FIGS. 2 and 5 , the second arm 32 extends from a second resin portion 88 of the housing portion 30 that covers a portion of another terminal 16 toward the other widthwise side. The second arm 32 has a base portion 33 that continues from the housing portion 30, a tip portion 35 on the opposite side of the housing portion 30, and an intermediate portion 34 that connects the base portion 33 and the tip portion 35. The base portion 33 extends from the second resin portion 88 that covers a portion of the other terminal 16 toward the other widthwise side. The second resin portion 88 to which the second arm 32 is connected is a resin portion that covers the connection portion between the terminal 16 on the other axial side and the electric wire 15. The intermediate portion 34 extends downward from the base portion 33. The tip portion 35 extends from a lower portion 34b of the intermediate portion 34 toward the other widthwise side. The tip portion 35 has a second pin 36 that protrudes upward.

[0044] With the second pin 36 passing through the second hole 41, the first pin 39 is passed through the first hole 40. As described above, when the first pin 39 passes through the first hole 40, the locking portion 39b is contracted, and after the first pin 39 passes through the first hole 40, the locking portion 39b expands due to its elastic restoring force. This prevents the first pin 39 from coming off the bracket 14. In the assembly of the second terminal block 12 and the bracket 14, if the bracket 14 attempts to fall off downward from the second terminal block 12, the connecting plate portion 21 of the bracket 14 comes into contact with the second arm 32, preventing the bracket 14 from falling off. In the assembly, if the second terminal block 12 attempts to fall off downward from the bracket 14, the first arm 31 comes into contact with the connecting plate portion 21 of the bracket 14, preventing the bracket 14 from falling off.

[0045] [Regarding the terminal block assembly 10 of this embodiment] 1, 2, and 3, the terminal block assembly 10 of this embodiment includes a second terminal block 12 that holds terminals 16 of three electric wires 15, a shielding member 13 that is provided opposite the three electric wires 15, and a metal, plate-shaped bracket 14 that holds the shielding member 13. The bracket 14 is attached to a protrusion 8 that the device housing 7 has. As a result, the shielding member 13 is electrically connected to the device housing 7 via the bracket 14.

[0046] The second terminal block 12 has a shape that is long in the width direction in order to hold the three terminals 16 aligned in the width direction (X direction). The bracket 14 has a shape that is long in the width direction in order to attach the shielding member 13 along the width direction. The second terminal block 12 has a first pin 39 and a second pin 36 for integrating with the bracket 14. The bracket 14 has a connecting plate portion 21 and a fixing plate portion 22. A first hole 40 through which the first pin 39 passes is provided in the connecting plate portion 21 on one side in the width direction. A second hole 41 through which the second pin 36 passes is provided in the connecting plate portion 21 on the other side in the width direction.

[0047] The pins 39, 36 of the second terminal block 12 are inserted into the holes 40, 41 of the bracket 14, and the second terminal block 12 and the bracket 14 become one unit. This makes the terminal block assembly 10 easier to handle, facilitating the task of mounting the terminal block assembly 10 on the device housing 7. The bracket 14 is attached to the protrusion 8 of the device housing 7 at its fixing plate portion 22. In the mounting direction of the bracket 14 from top to bottom, the bracket 14 rests on the tip portion 9 of the protrusion 8, and then the fixing plate portion 22 is fixed to the protrusion 8. The fixing plate portion 22 has a contact piece 23 that can come into contact with the tip portion 9 in a direction perpendicular to the mounting direction.

[0048] When the bracket 14 is attached to the device housing 7, if the bracket 14 rests on the tip 9 of the protrusion 8, even if the bracket 14 attempts to displace, for example, with a widthwise component, the contact piece 23 comes into contact with the tip 9 of the protrusion 8, preventing the bracket 14 from displacing. Therefore, no large shear force (unreasonable force) acts on the pins 36, 39 of the second terminal block 12, preventing the second terminal block 12 from breaking.

[0049] In this embodiment, the second terminal block 12 is attached to the first terminal block 11, and the first terminal block 11 is fixed to the device housing 7. Then, the bracket 14 is fixed to the protrusion 8. The second terminal block 12 is constrained from displacement on the device housing 7 before the bracket 14 is. Even if the second terminal block is constrained from displacement on the device housing 7 first, the contact piece 23 prevents the bracket 14 from being displaced relative to the protrusion 8 of the device housing 7. For example, when the fixing plate portion 22 is fixed to the projection 8 by the bolt 80, the tightening torque of the bolt 80 causes the bracket 14 to swing around the projection 8. According to this embodiment, as described above, the contact piece 23 prevents the bracket 14 from being displaced relative to the projection 8. Therefore, no large shear force (unreasonable force) acts on the pins 36, 39.

[0050] The second terminal block 12 has a first arm 31 and a second arm 32 extending on both sides in the width direction. A first pin 39 is provided at the tip of the first arm 31. A second pin 36 is provided at the tip of the second arm 32. The first arm 31 and the second arm 32 are cantilevered, and the pins 39 and 36 are provided at the tips of the arms 31 and 32. Even with this structure, as described above, when the terminal block assembly 10 is installed in the device housing 7, no excessive force is applied to the pins 39 and 36 and the arms 31 and 32, preventing breakage of the second terminal block 12.

[0051] Bracket 14 has fixing plate portions 22 with contact pieces 23 on both sides in the width direction. Therefore, whether bracket 14 is attached with bolts 80 on one width direction side first or on the other width direction side first, bracket 14 will not be displaced by swinging due to the tightening torque of bolts 80. Furthermore, even if bracket 14 attempts to displace in the front-to-rear or width direction after bracket 14 is attached to projection 8, the displacement is restricted by contact pieces 23, and no shear force acts on pins 36, 39.

[0052] As shown in FIG. 6, the tip portion 9 of the projection 8 has a cylindrical shape. The contact piece 23 has an arc portion 24 that is arc-shaped along the outer circumferential surface of the tip portion 9, and a pair of straight portions 25. Each straight portion 25 extends linearly from each end of the arc portion 24. This makes it possible to effectively restrict displacement of the bracket 14 in the front-rear and width directions. Furthermore, even if the flat plate portion 84 of the fixing plate portion 22 is thin, the straight portions 25 increase rigidity.

[0053] The contact piece 23 is formed by plastic deformation. For ease of forming, a slit may be provided between the arc portion 24 and the straight portion 25, or a slit may be provided midway along the arc portion 24. However, in this embodiment, the contact piece 23 is formed without a slit. In other words, the arc portion 24 has an arc shape that continues along the outer circumferential surface of the tip portion 9. The straight portion 25 and the arc portion 24 are continuous. This configuration further increases the rigidity of the fixing plate portion 22.

[0054] 〔others〕 In the above embodiment, the protrusion 8 of the device housing 7 has a cylindrical shape, and the contact piece 23 of the bracket 14 has an arc portion 24 to match that shape. The shape of the contact piece 23 can be changed depending on the shape of the protrusion 8. Although the contact piece 23 has been described as having an arc portion 24 and two opposing straight portions 25, one or both of the straight portions 25 may be omitted. The contact piece 23 only needs to have a shape that allows it to come into contact with the tip 9 of the protrusion 8 in a direction perpendicular to the mounting direction (from top to bottom).

[0055] The above-described embodiments are illustrative in all respects and are not limiting. The scope of the present invention is defined by the claims rather than the above-described embodiments, and includes all modifications within the scope equivalent to the configurations described in the claims. [Explanation of symbols]

[0056] 7. Equipment housing 8 protrusions 9 Tip 10 Terminal block assembly 11 First terminal block 12 Second terminal block 13 Shielding material 13e Edge 14 Bracket 15 Electric wire 16 terminals 17 Connector connection part 20 Mounting plate 21 Connecting plate part 22 Fixed plate part 23 Contact piece 24 Arc section 24p part 24q part 24r other parts 25 Straight section 30 Housing section 31 First Arm 32 Second Arm 33 Base 34 Middle section 34b lower part 35 Tip 36 Second pin 39 First pin 39a Pin body 39b Locking part 40 First hole 41 Second hole 81 Terminal Block 82 Base piece 83 Bent piece 84 Flat plate part 85 screw holes 86 holes 87 First resin department 88 Second resin part 90 Terminal block assembly 91 Terminal block 92 Shielding material 93 Bracket 94 terminals 95 Electric wire 96 pins 97 holes 98 part 99 cases L1 center line L2 centerline

Claims

1. a terminal block mounted on the device housing and holding terminals of a plurality of electric wires; a shielding member provided opposite the plurality of electric wires; a metal plate-shaped bracket that holds the shield member; Equipped with The bracket is attached to a protrusion of the device housing, and the shielding member is electrically connectable to the device housing via the bracket. the terminal block has a shape that is long in the first direction so as to hold the plurality of terminals arranged in the first direction, the bracket has a shape that is long in the first direction so as to attach the shield member along the first direction; The terminal block has a pin for integrating with the bracket, the bracket has a connecting plate portion having a hole larger than an outer diameter of the pin and through which the pin passes, and a fixing plate portion that is placed on a tip of the protrusion in an attachment direction perpendicular to the first direction and is fixed to the protrusion, the fixing plate portion has a contact piece that can come into contact with the tip portion in a direction perpendicular to the mounting direction, Terminal block assembly.

2. The terminal block assembly according to claim 1 , wherein the bracket has the fixing plate portion having the contact piece on each side in the first direction.

3. the shielding member has a sheet shape and is provided to face the plurality of electric wires only on one side thereof, 3. The terminal block assembly according to claim 1, wherein the bracket has a mounting plate portion provided along an edge of the sheet-shaped shielding member.

4. The tip of the projection has a cylindrical shape, 2. The terminal block assembly of claim 1, wherein the contact piece has an arc portion that is arc-shaped along the outer peripheral surface of the tip portion, and a pair of straight portions that extend linearly from both ends of the arc portion.

5. the arc portion has an arc shape that continues along the outer circumferential surface of the tip portion, 5. The terminal block assembly of claim 4, wherein the straight portion and the arc portion are continuous.

6. The terminal block has an arm extending in the first direction, 2. The terminal block assembly of claim 1, wherein the pin is provided at a tip of the arm.

7. The terminal block assembly of claim 1 , wherein the direction of the centerline of the pin is the same as the installation direction.

8. When the terminal block is a second terminal block, a first terminal block attached directly to the device housing; the second terminal block is fixed to the first terminal block, The terminal block assembly according to claim 1 , wherein the fixing plate portion of the bracket extends to a position protruding from the first terminal block in the first direction.

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