connector

Abstract

One embodiment provides a connector that can suppress rattling between components. [Solution] The device comprises a conductive member extending in one direction, a terminal connected to one end of the conductive member in the direction of extension, a housing for housing the terminal, and a holder member through which the conductive member is inserted and connected to the housing. The housing has a connecting portion connected to the holder member, and the holder member has an insertion portion that holds a part of the outer surface of the conductive member and is inserted into the connecting portion. The insertion portion has a projection that protrudes from the surface facing the connecting portion, and the connecting portion has a hole at a position corresponding to the projection. The outer shape of the base of the projection is larger than the outer shape of the hole, and the housing and the holder member are connected when the projection is fitted into the hole.

Description

【Technical Field】 【0001】 Embodiments of the present invention relate to a connector. 【Background Art】 【0002】 A connector includes a housing that houses terminals connected to electric wires, and a rear holder assembled to the housing. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2013-239364 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 By the way, in a conventional connector, it is desired to suppress play between components. 【0005】 One embodiment provides a connector capable of suppressing play between components. 【Means for Solving the Problems】 【0006】 A connector according to one embodiment includes a conductive member extending in one direction, a terminal connected to one end side in the extending direction of the conductive member, a housing that houses the terminal, and a holder member through which the conductive member is inserted and that is connected to the housing. The housing has a connection portion connected to the holder member, and the holder member has an insertion portion that holds a part of the outer surface of the conductive member and is inserted into the connection portion. A protruding portion protruding from a surface of the insertion portion facing the connection portion is formed in the insertion portion, and a hole portion is formed at a position corresponding to the protruding portion in the connection portion. The outer shape of the base of the protruding portion is larger than the outer shape of the hole portion, and the housing and the holder member are connected by fitting the protruding portion into the hole portion. [Effects of the Invention] 【0007】 According to one embodiment, looseness between parts can be suppressed. [Brief explanation of the drawing] 【0008】 [Figure 1] A perspective view showing the connector of the embodiment. [Figure 2] An exploded perspective view showing the connector of the embodiment. [Figure 3] A perspective view showing the peripheral configuration of the lower housing of the embodiment. [Figure 4] A perspective view showing the holder member of the embodiment. [Figure 5] A cross-sectional view along the VV line in Figure 1. [Modes for carrying out the invention] 【0009】 The embodiments will be described below with reference to the drawings. In the following description, components having the same or similar functions will be denoted by the same reference numerals. Duplication of these components may be omitted. 【0010】 In this disclosure, terms are defined as follows: “Connection” may include electrical connections, not just mechanical ones. That is, “Connection” may include cases where two elements to be connected are directly connected, not just cases where two elements to be connected are connected with another element in between. "Accommodation" is not limited to cases where the entire part is accommodated, but may also include cases where only a part of the part is accommodated (with the remaining part of the part protruding). 【0011】 The embodiments will now be described. Figure 1 is a perspective view showing connector 1 of the embodiment. As shown in Figure 1, the connector 1 comprises a pair of conductive members 2, a pair of terminals 5, a housing 10, a housing connection portion 15, and a holder member 50. 【0012】 In this specification, the XYZ coordinate system will be used as needed to clearly explain the arrangement and shape of each component. The XYZ coordinate system shown in each drawing will now be explained. The X, Y, and Z directions are defined as follows: The X direction is the direction in which the conductive member 2 extends. The +X direction is the direction in which the conductive member 2 protrudes from the holder member 50. The -X direction is the opposite direction to the +X direction. Hereafter, when the +X and -X directions are not distinguished, they will simply be referred to as the "X direction". The Y direction is the direction that intersects the X direction and is the direction in which the conductive members 2 are arranged in parallel. The +Y direction is the right side when looking from the +X direction to the -X direction. The -Y direction is the opposite direction to the +Y direction. Hereafter, when the +Y and -Y directions are not distinguished, they will simply be referred to as the "Y direction". The Z direction is the direction that intersects the X and Y directions. The +Z direction is the direction in which the terminal 5 protrudes from the upper housing 11. The -Z direction is the opposite direction to the +Z direction. In the following, when the +Z direction and the -Z direction are not distinguished, they will simply be referred to as the "Z direction". 【0013】 A pair of conductive members 2 includes a first wire 3 and a second wire 4. The first wire 3 and the second wire 4 have a cylindrical cross-sectional shape and extend along the X direction. The first wire 3 and the second wire 4 are arranged side by side in the Y direction. The first wire 3 is positioned on the +Y side of the second wire 4. The second wire 4 is positioned on the -Y side of the first wire 3. The first wire 3 and the second wire 4 are inserted into a holder member 50 and their ends are connected to a terminal 5. The X direction in this embodiment corresponds to one direction in the claims. 【0014】 In the following explanation, the direction along the X-direction in which the first wire 3 and the second wire 4 extend will sometimes be simply referred to as the "axial direction," the direction perpendicular to the X-axis passing through the center of the outer diameter of the first wire 3 and the second wire 4 will sometimes be simply referred to as the "radial direction," and the circumferential direction centered on the outer diameter of the first wire 3 and the second wire 4 will sometimes be simply referred to as the "circumferential direction." 【0015】 The pair of terminals 5 are each constituted by, for example, terminal fittings or the like that are electrically connected by crimping. The pair of terminals 5 includes a first terminal portion 6 and a second terminal portion 8. The first terminal portion 6 and the second terminal portion 8 extend along the Z direction. The first terminal portion 6 and the second terminal portion 8 of the present embodiment are, for example, in the shape of an elongated plate. The +Z-direction ends of the first terminal portion 6 and the second terminal portion 8 protrude from the housing 10. Note that the shapes of the first terminal portion 6 and the second terminal portion 8 are not particularly limited. 【0016】 FIG. 2 is an exploded perspective view showing the connector 1 of the embodiment. As shown in FIG. 2, a terminal connection portion 7 is provided at the -Z-direction end of the first terminal portion 6. The terminal connection portion 7 is formed by being bent from the Z direction to the X direction. The terminal connection portion 7 connects the -X-side end of the first electric wire 3 and the first terminal portion 6. A terminal connection portion 9 is provided at the -Z-direction end of the second terminal portion 8. The terminal connection portion 9 is formed by being bent from the Z direction to the X direction. The terminal connection portion 9 connects the -X-side end of the second electric wire 4 and the second terminal portion 8. 【0017】 The housing 10 houses the terminals 5 inside. The housing 10 is constituted by an insulating member. The housing 10 includes an upper housing 11 and a lower housing 20. The housing 10 is constituted by integrally assembling the upper housing 11 and the lower housing 20. 【0018】 The upper housing 11 is located on the +Z side of the lower housing 20 in the Z direction. The upper housing 11 has a cylindrical shape that is open in the Z direction as a whole. The upper housing 11 includes a locking portion 12. The locking portion 12 is formed on the outer peripheral portion on the -Z side of the upper housing 11. The locking portion 12 is U-shaped and protrudes to the -Z side. 【0019】 The lower housing 20 includes a cylindrical portion 21 and a connection portion 23. The cylindrical portion 21 is formed on the -X side of the lower housing 20. The cylindrical portion 21 opens on the +Z side and houses the terminal connection portions 7 and 9 of the terminal 5. The cylindrical portion 21 has a convex portion 22 on its outer peripheral portion. The convex portion 22 enters the U-shaped gap of the locking portion 12, and the locking portion 12 is locked in a state of being hooked on the convex portion 22. With these configurations, in the housing 10, the upper housing 11 and the lower housing 20 are detachably connected. 【0020】 A housing connection portion 15 is provided between the upper housing 11 and the lower housing 20 (see FIG. 1). The housing connection portion 15 is provided on the +Z side of the inner peripheral surface of the lower housing 20. A claw portion 16 that protrudes on the +Z side is formed on the housing connection portion 15. The claw portion 16 is hooked and connected to the recess 13 shown in FIG. 1 formed on the outer peripheral surface on the -Z side of the upper housing 11. Based on such a configuration, the housing 10 is configured by integrally assembling the upper housing 11 and the lower housing 20 by the locking portion 12, the convex portion 22, and the housing connection portion 15. 【0021】 The connection portion 23 is provided on the +X side of the side surface portion of the cylindrical portion 21. The connection portion 23 is connected to the holder member 50. FIG. 3 is a perspective view showing the peripheral configuration of the lower housing 20. As shown in FIG. 3, the connection portion 23 has a first connection portion 24, a second connection portion 28, and a connecting portion 33. 【0022】 The first connection portion 24 has a cylindrical shape that opens in the X direction. Inside the first connection portion 24, the first electric wire 3 is inserted through the holder member 五十. A hole portion 25 that penetrates in the radial direction is formed on the +X side of the first connection portion 24. The hole portion 25 includes a first hole 26 and a second hole 27. The first hole 26 and the second hole 27 are formed along the Z direction. The first hole 26 and the second hole 27 are located on the same line in the radial direction of the first connecting portion 24. The first hole 26 and the second hole 27 are formed in a circular shape. 【0023】 The second connecting portion 28 is a pair with the first connecting portion 24 and has a similar shape. The second electric wire 4 is inserted into the second connecting portion 28 via the holder member 50. A hole 29 is formed on the +X side of the second connecting portion 28, penetrating radially. The hole 29 includes a third hole 30 and a fourth hole 31. The third hole 30 and the fourth hole 31 are formed along the Z direction. The third hole 30 and the fourth hole 31 are located on the same line in the radial direction of the second connecting portion 28. The third hole 30 and the fourth hole 31 are formed in a circular shape. 【0024】 The first connecting portion 24 and the second connecting portion 28 are arranged side by side in the Y direction. The first connecting portion 24 is located on the +Y side of the second connecting portion 28. The first connecting portion 24 and the second connecting portion 28 are connected by a connecting portion 33 formed along the Y direction. 【0025】 A pair of packings 40 are provided inside the connecting portion 23. The pair of packings 40 includes a first packing 41 and a second packing 42. The first packing 41 and the second packing 42 are, for example, annular members such as rubber stoppers. The first packing 41 is provided inside the first connection portion 24. The outer circumference of the first packing 41 is in close contact with the inner circumferential surface of the first connection portion 24. The inner circumference of the first packing 41 is in close contact with the outer circumferential surface of the first electric wire 3. The second packing 42 is provided inside the second connection portion 28. The outer circumference of the second packing 42 is in close contact with the inner circumferential surface of the second connection portion 28. The inner circumference of the second packing 42 is in close contact with the outer circumferential surface of the second electric wire 4. 【0026】 With this configuration, the pair of packings 40 seal the space between the connection portion 23 and the pair of conductive members 2. Based on this configuration, it is possible to prevent moisture and other substances from entering the housing 10 from the outside. 【0027】 Figure 4 is a perspective view showing the holder member 50 of the embodiment. Figure 4 is a view of the holder member 50 as it is inserted into the connecting portion 23. As shown in Figures 1 and 4, the holder member 50 has a main body portion 68, a pair of insertion portions 51, and a flange portion 65. The first electric wire 3 and the second electric wire 4 are inserted through the holder member 50 and connected to the connection portion 23 of the lower housing 20. The holder member 50 holds a portion of the outer circumferential surface of the first electric wire 3 and the second electric wire 4. The first electric wire 3 and the second electric wire 4 protrude from the holder member 50 in the X direction. 【0028】 The main body 68 holds the outer surfaces of the first wire 3 and the second wire 4 so that they protrude from both sides in the X direction. The main body 68 has a first main body 69 and a second main body 70. The first main body 69 and the second main body 70 as a whole have a cylindrical shape that opens in the X direction. 【0029】 The first main body portion 69 has a first through hole 57 that penetrates in the X direction. The second main body portion 70 has a second through hole 63 that penetrates in the X direction. The first electric wire 3 is inserted through the first through hole 57 of the first main body 69. The second electric wire 4 is inserted through the second through hole 63 of the second main body 70. The first through hole 57 and the second through hole 63 are formed with the same inner diameter over the entire length of the main body 68 in the X direction. 【0030】 Each of the first main body portion 69 and the second main body portion 70 has multiple ribs 71 arranged circumferentially on its outer circumferential surface on the +X side of the flange portion 65, extending along the X direction. The main body portion 68 is, for example, the part that is gripped when the holder member 50 is inserted. The multiple ribs 71 formed on the main body portion 68 increase the mechanical strength of the holder member 50 and improve its rigidity. This configuration improves the reliability of the connection between the holder member 50 and the connecting portion 23. 【0031】 The pair of insertion portions 51 are provided so as to protrude radially outward from the main body portion 68. The pair of insertion portions 51 are inserted into the interior of the connecting portion 23. The pair of insertion portions 51 have a first insertion portion 52 and a second insertion portion 58. 【0032】 The first insertion portion 52 is provided in a state that it protrudes radially outward from the first main body portion 69. The first insertion portion 52 is inserted into the first connecting portion 24 of the connecting portion 23 shown in Figure 3. The first insertion portion 52 is a cylindrical portion that opens in the X direction. The first insertion portion 52 has a projection 54 that protrudes radially outward from the outer peripheral surface 53 facing the first connecting portion 24. The projection 54 includes a first projection 55 and a second projection 56. The first projection 55 and the second projection 56 are formed along the Z direction. That is, the first projection 55 and the second projection 56 are located on the same line in the radial direction of the first insertion portion 52. 【0033】 Figure 5 is a cross-sectional view along the VV line in Figure 1. As shown in Figures 4 and 5, the first projection 55 is formed at a position corresponding to the first hole 26. The first projection 55 is dome-shaped. The outer shape of the base of the first projection 55 is larger than the outer shape of the first hole 26. More specifically, the outer diameter of the base of the first projection 55 is larger than the inner diameter of the first hole 26. The second projection 56 is formed at a position corresponding to the second hole 27. The second projection 56 is dome-shaped. The outer shape of the base of the second projection 56 is larger than the outer shape of the second hole 27. More specifically, the outer diameter of the base of the second projection 56 is larger than the inner diameter of the second hole 27. Here, in this embodiment, "the external shape of one is larger than the other" is not limited to the case where one is larger than the entire other, but may also include the case where at least a part of one is located outside the other in one direction in a plan view. 【0034】 The second insertion portion 58 is provided in a state that it protrudes radially outward from the second main body portion 70. The second insertion portion 58 is inserted into the second connecting portion 28 of the connecting portion 23 shown in Figure 3. The second insertion portion 58 has the same shape as the first insertion portion 52. The second insertion portion 58 has a projection 60 that protrudes radially outward from the outer peripheral surface 59 facing the second connecting portion 28. The projection 60 includes a third projection 61 and a fourth projection 62. The third projection 61 and the fourth projection 62 are formed along the Z direction. The third projection 61 and the fourth projection 62 are located on the same line in the radial direction of the second insertion portion 58. 【0035】 As shown in Figures 4 and 5, the third projection 61 is formed at a position corresponding to the third hole 30. The third projection 61 is dome-shaped. The outer shape of the base of the third projection 61 is larger than the outer shape of the third hole 30. More specifically, the outer diameter of the base of the third projection 61 is larger than the inner diameter of the third hole 30. The fourth projection 62 is formed at a position corresponding to the fourth hole 31. The fourth projection 62 is dome-shaped. The outer shape of the base of the fourth projection 62 is larger than the outer shape of the fourth hole 31. More specifically, the outer diameter of the base of the fourth projection 62 is larger than the inner diameter of the fourth hole 31. 【0036】 The flange portion 65 is plate-shaped and is located on the +X side of the insertion portion 51. The flange portion 65 is provided so as to protrude radially outward from the main body portion 68 beyond the insertion portion 51. In the holder member 50, the flange portion 65 is the part that separates the insertion portion 51, which is inserted into the connecting portion 23, from the other parts that are not inserted. The flange portion 65 has a first flange 66 and a second flange 67. The first flange 66 and the second flange 67 are connected along the Y direction, thereby connecting the first insertion portion 52 and the second insertion portion 58. 【0037】 The first flange 66 is located on the +X side of the first insertion portion 52. The first flange 66 is positioned to protrude radially outward from the first main body portion 69 beyond the first insertion portion 52. When viewed along the X direction, the first flange 66 protrudes semicircularly to the +Y side along the radially outward side of the first insertion portion 52. The second flange 67 is located on the +X side of the second insertion portion 58. The second flange 67 is positioned to protrude radially outward from the second main body portion 70 beyond the second insertion portion 58. When viewed along the X direction, the second flange 67 protrudes semicircularly to the -Y side along the radially outward side of the second insertion portion 58. 【0038】 (Mechanism of Action and Effects) In the connector 1 of this embodiment, projections 54 and 60 are formed on the insertion portion 51, protruding from the surface facing the connection portion 23, and holes 25 and 29 are formed in the connection portion 23 at positions corresponding to the projections 54 and 60. The outer diameter of the base of the projections 54 and 60 is larger than the outer diameter of the holes 25 and 29. With this configuration, when the insertion portion 51 is inserted into the connection portion 23, the holes 25 and 29 are positioned in the direction from which the projections 54 and 60 protrude, so that the projections 54 and 60 are press-fitted into the holes 25 and 29. The projections 54 and 60 are press-fitted until the inner diameter of the holes 25 and 29 matches the outer diameter of the projections 54 and 60, without completely entering the inside of the holes 25 and 29, and the projections 54 and 60 and the holes 25 and 29 are fitted together. More specifically, the first projection 55 is fitted into the first hole 26, the second projection 56 into the second hole 27, the third projection 61 into the third hole 30, and the fourth projection 62 into the fourth hole 31. This action suppresses the generation of gaps between the protrusions 54, 60 and the holes 25, 29. Therefore, looseness between the insertion part 51 and the connecting part 23 can be suppressed. Consequently, the connector 1 of this embodiment can suppress the generation of wear particles and the like due to looseness between parts, even when vibration is applied. In addition, in the connector 1 of this embodiment, the holder member 50 and the housing 10 can be connected by fitting the insertion part 51 and the connecting part 23 together. With this configuration, the protrusions 54, 60 and holes 25, 29 enable the suppression of looseness and connection between the holder member 50 and the housing 10. Therefore, it is not necessary to provide separate parts for each of the purposes of suppressing looseness and connection, allowing for miniaturization of parts and a reduction in the number of parts. As a result, the mass of the parts is reduced, which reduces manufacturing costs. In addition, when transporting the manufactured connector 1, simpler packaging can be used, reducing packaging costs. 【0039】 In the connector 1 of this embodiment, multiple projections 54 and 60 are formed protruding from the surface of the insertion portion 51 facing the connection portion 23, and multiple holes 25 and 29 are formed at positions corresponding to the projections 54 and 60. With this configuration, the projections 54 and 60 and the holes 25 and 29 are fitted together, so that looseness between the insertion portion 51 and the connection portion 23 can be further suppressed. 【0040】 According to the connector 1 of this embodiment, the protrusions 54, 60 include a first protrusion 55 and a second protrusion 56 formed on the same line in the radial direction, and the holes 25, 29 include a first hole 26 and a second hole 27 formed at positions corresponding to the first protrusion 55 and the second protrusion 56. With this configuration, the number of protrusions 54, 60 and holes 25, 29 can be minimized and arranged at equal intervals, so the occurrence of looseness can be efficiently suppressed. Therefore, the processing of the protrusions 54, 60 and holes 25, 29 becomes easier. In addition, the force applied to each of the multiple protrusions 54, 60 and holes 25, 29 can be distributed, so stress concentration can be prevented. 【0041】 According to the connector 1 of this embodiment, it comprises a pair of conductive members 2, and the insertion portion 51 holds each of the pair of conductive members 2 and includes a pair of cylindrical portions that are connected to each other, with projections 54 and 60 provided on each of the pair of cylindrical portions. This configuration facilitates assembly, such as inserting the first wire 3 and the second wire 4, and inserting the insertion portion 51 into the connection portion 23. Furthermore, projections 54 are formed on the outer circumferential surface 53 of the first insertion portion 52, and projections 60 are formed on the outer circumferential surface 59 of the second insertion portion 58. With this configuration, the first insertion portion 52 and the first connection portion 24, and the second insertion portion 58 and the second connection portion 28 can be fitted together independently of each other, thus suppressing looseness in each of the first insertion portion 52 and the first connection portion 24, and the second insertion portion 58 and the second connection portion 28. 【0042】 Embodiments of the present invention have been described above. However, the embodiments are not limited to the examples described above. The embodiments described above are merely illustrative. For example, in this embodiment, the housing 10 is formed by assembling the upper housing 11 and the lower housing 20, but the upper housing 11 and the lower housing 20 may be configured not to be separated. Furthermore, although the conductive member 2 was described as an electric wire, it is not limited to this and may be a conductive member such as a busbar. Furthermore, although the description has shown two conductive members 2, the invention is not limited to these two, and one or three or more conductive members may be provided. Similarly, the terminal 5, connection portion 23, insertion portion 51, main body portion 68, and flange portion 65 may be provided one or three or more, corresponding to the number of conductive members 2. Furthermore, although the case of two projections 54 and 60 has been described, the number of projections is not limited to these, and three or more may be formed in the circumferential direction. Similarly, three or more holes 25 and 29 may be formed in the circumferential direction. Furthermore, although the first projection 55, second projection 56, third projection 61, and fourth projection 62 were described as being dome-shaped, they are not limited to these, and may have other shapes such as ellipses or polygons in a plan view. Furthermore, although the first hole 26, second hole 27, third hole 30, and fourth hole 31 were described as being formed in a circular shape, they are not limited to these, and may be elliptical, polygonal, or other shapes in a plan view. [Explanation of symbols] 【0043】 1… Connector 2…Conductive material 3…First power line 4…Second power line 5… Terminals 6…First terminal section 8…Second terminal section 10… Housing 11…Upper housing 20...Lower housing 23...Connection part 24...First connection section 25,29…hole 26…1st hole 27…Second hole 28...Second connection section 29...hole 30…3rd hole 31...4th hole 50…Holder component 51... Insertion part 52...First insertion 54,60…Protrusion 55...1st protrusion 56…Second protrusion 58...Second insertion 60...Protrusion 61...Third protrusion 62…4th protrusion

Claims

[Claim 1] A conductive member extending in one direction, A terminal connected to one end of the conductive member in the extending direction, A housing for the aforementioned terminals, A holder member through which the conductive member is inserted and which is connected to the housing, Equipped with, The housing has a connecting portion that connects to the holder member, The holder member has an insertion portion that holds a part of the outer surface of the conductive member and is inserted into the connecting portion. The insertion portion has a projection that protrudes from the surface facing the connecting portion. The connecting portion has a hole formed in it at a position corresponding to the projection. The outer shape of the base of the projection is larger than the outer shape of the hole. The housing and the holder member are connected when the projection is fitted into the hole. connector. [Claim 2] Multiple projections are formed, protruding from the surface of the insertion portion facing the connecting portion. Multiple holes are formed at positions corresponding to the protrusions. The connector according to claim 1. [Claim 3] The plurality of protrusions include a first protrusion and a second protrusion formed on the same line in the direction protruding from the surface of the insertion portion facing the connecting portion, The plurality of holes include first holes and second holes formed at positions corresponding to the first projection and the second projection, The connector according to claim 2. [Claim 4] A pair of the aforementioned conductive members are provided, The insertion portion includes a pair of cylindrical portions that hold each of the pair of conductive members and are connected to each other. The aforementioned projections are provided on each of the pair of cylindrical portions, The connector according to claim 1.

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