Connector attachment structure

Abstract

To provide a connector attachment structure capable of easily positioning a connector.SOLUTION: A connector attachment structure S includes: a housing 11 of an electron device 1 that has a plurality of fixed holes 111 on a rear surface; a plurality of positioning pins 2 for positioning the electron device 1 to a back board of a rear side of the electron device 1 that are provided at a position away from each other in a width direction of the electron device 1 on the rear surface; a connector 3 that is provided between the plurality of positioning pins 2, and has a plurality of attachment holes 31; and a plurality of coupling members 4 for coupling the connector 3 to the rear surface, wherein each coupling member 4 couples the connector 3 to the rear surface in a state of being inserted into each attachment hole 31 and each fixed hole 111. The plurality of fixed holes 111 are formed on a straight line coupling the plurality of positioning pins 2 on the rear surface.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a connector mounting structure.

Background Art

[0002] An electronic device is provided with a connector mounting structure. Patent Document 1 discloses a structure in which a CPU board is inserted into an information processing device from the front of a rack, housed inside the rack, and the housed CPU board is connected to a backplane at the rear of the rack by a connector.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the backboard at the rear of an electronic device does not have a floating structure, it is difficult to position the connector, and there has been a problem that it may be difficult to align the connector provided on the rear surface of the housing of the electronic device with the connector provided on the backboard.

[0005] Therefore, the present invention has been made in view of these points, and an object thereof is to provide a connector mounting structure that facilitates positioning of the connector.

Means for Solving the Problems

[0006] In a first aspect of the present invention, there is provided a housing of an electronic device, the housing having a plurality of fixing holes on a rear surface, a plurality of positioning pins for positioning the electronic device with respect to a backboard behind the electronic device, the plurality of positioning pins being provided at positions spaced apart from each other in the width direction of the electronic device on the rear surface, a connector provided between the plurality of positioning pins and having a plurality of mounting holes, and a plurality of coupling members for coupling the connector to the rear surface, the coupling members coupling the connector to the rear surface in a state of being inserted into the mounting holes and the fixing holes. The plurality of fixing holes provide a connector mounting structure formed on a straight line connecting the plurality of positioning pins on the rear surface.

[0007] Further, as the plurality of coupling members, a first coupling member having a first diameter and a second coupling member having a second diameter larger than the first diameter are provided. A gap between an inner circumference of one of the mounting holes and an outer circumference of the second coupling member in a state where the second coupling member is inserted into one of the mounting holes may be smaller than a gap between an inner circumference of the other mounting hole and an outer circumference of the first coupling member in a state where the first coupling member is inserted into the other mounting hole.

[0008] Further, a protruding amount of the positioning pin protruding from the rear surface may be larger than a protruding amount of the connector.

[0009] Further, the plurality of positioning pins are a pair of positioning pins provided on both sides of the rear surface of the electronic device. As the connector, the connector has a first connector and a second connector arranged side by side in the width direction of the electronic device. The second coupling member of the first connector and the second coupling member of the second connector may both be provided on a side closer to one of the pair of positioning pins.

Advantages of the Invention

[0010] According to the present invention, in the connector mounting structure, there is an effect that it is possible to easily position the connector.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0012] [Structure of Connector Mounting Structure S] FIG. 1 is a diagram showing the structure of the connector mounting structure S according to this embodiment. FIG. 2 is a diagram showing the structure of the connector mounting structure S as viewed from the rear side of the electronic device 1. FIG. 3 is a diagram showing the rear surface of the housing 11. Note that FIG. 3 is a diagram showing a state in which the connector 3 and the coupling member 4 are removed from the rear surface of the housing 11 of the electronic device 1. FIG. 4 is a diagram showing the structure of the connector 3. Note that FIG. 4 is a diagram showing the structure of the first connector 3A.

[0013] The electronic device 1 in FIG. 1 is inserted into a rack (not shown) behind the electronic device 1 from the front to the rear. At this time, the connector 3 provided on the rear surface of the housing 11 of the electronic device 1 is connected to a connector (not shown) provided on the backboard (not shown) of the rack.

[0014] The connector mounting structure S is a structure in which the connector 3 is attached to the rear surface of the housing 11 of the electronic device 1 by a plurality of coupling members 4. The connector mounting structure S includes a housing 11, a plurality of positioning pins 2, a connector 3, and a plurality of coupling members 4.

[0015] The housing 11 is the housing of the electronic device 1. As shown in FIG. 3, the housing 11 has a plurality of fixing holes 111 and a plurality of openings 114. The fixing holes 111 are holes into which a coupling member 4 described later is inserted. The plurality of fixing holes 111 are provided on the rear surface of the housing 11. As the fixing holes 111, a first fixing hole 112 and a second fixing hole 113 are provided. Details of the plurality of fixing holes 111 will be described later. The opening 114 is an opening into which a part of a connector 3 described later is inserted. The opening 114 is provided between the first fixing hole 112 and the second fixing hole 113 in the width direction of the electronic device 1.

[0016] The plurality of positioning pins 2 are components for positioning the electronic device 1 with respect to a backboard behind the electronic device 1. The positioning pins 2 project rearward from the rear surface of the housing 11. The positioning pins 2 are inserted into holes (not shown) formed in the backboard.

[0017] The plurality of positioning pins 2 are provided at positions spaced apart from each other in the width direction of the electronic device 1 on the rear surface of the housing 11. The plurality of positioning pins 2 are a pair of positioning pins 2 provided on both sides of the rear surface of the housing 11 of the electronic device 1.

[0018] On the rear surface of the housing 11 of the electronic device 1, a first positioning pin 2A and a second positioning pin 2B are provided as a pair of positioning pins 2. The first positioning pin 2A is provided at one end in the width direction of the electronic device 1 on the rear surface of the housing 11. The second positioning pin 2B is provided at the other end in the width direction of the electronic device 1 on the rear surface of the housing 11. The second positioning pin 2B has the same structure as the first positioning pin 2A.

[0019] The connector 3 is a component for electrically connecting the electronic device 1 and an external device. As the connector 3, a first connector 3A and a second connector 3B are provided. As the second connector 3B, a second connector 3Ba and a second connector 3Bb are provided.

[0020] The connector 3 is connected to a connector provided on the backboard at the rear of the electronic device 1. The connector 3 is provided between a plurality of positioning pins 2. Specifically, the connector 3 is provided between the first positioning pin 2A and the second positioning pin 2B.

[0021] As shown in FIG. 4, the connector 3 has a plurality of mounting holes 31. The mounting holes 31 are holes into which a coupling member 4 described later is inserted. The connector 3 is provided with two mounting holes 31 in the width direction of the electronic device 1 in a state where the connector 3 is attached to the rear surface of the housing 11. The inner diameter of the mounting hole 31 is, for example, 3.05 mm. The connector 3 is attached to the rear surface of the housing 11 by inserting and tightening the coupling member 4 into the mounting hole 31 of the connector 3 and the fixing hole 111 on the rear surface of the housing 11.

[0022] On the rear surface of the housing 11 of the electronic device 1, a first connector 3A and a second connector 3B are provided as the connector 3. The first connector 3A and the second connector 3B are arranged side by side in the width direction of the electronic device 1. Duplicate descriptions of the common parts of the structures of the first connector 3A and the second connector 3B are omitted.

[0023] The first connector 3A is, for example, a D-Sub (D-Subminiature) 15-pin connector. The first connector 3A has a plurality of mounting holes 31. The first connector 3A is provided with two mounting holes 31 in the width direction of the electronic device 1 in a state where the first connector 3A is attached to the rear surface of the housing 11.

[0024] The first connector 3A is provided between the first positioning pin 2A and the second connector 3B in the width direction of the electronic device 1.

[0025] The second connector 3B is, for example, a D-Sub 50-pin connector. The second connector 3B has a plurality of mounting holes 31, similar to the first connector 3A.

[0026] The second connector 3B is provided between the first connector 3A and the second positioning pin 2B in the width direction of the electronic device 1.

[0027] On the rear surface of the housing 11 of the electronic device 1, as the second connector 3B, a second connector 3Ba and a second connector 3Bb are provided. The second connector 3Ba is provided on one end side in the width direction of the electronic device 1. Specifically, the second connector 3Ba is provided between the first connector 3A and the second connector 3Bb in the width direction of the electronic device 1.

[0028] The second connector 3Bb is provided on the other end side in the width direction of the electronic device 1. The second connector 3Bb has the same structure as the second connector 3Ba.

[0029] The plurality of coupling members 4 are parts for coupling the connector 3 to the rear surface of the housing 11. The coupling member 4 is a screw. The coupling member 4 couples the connector 3 to the rear surface of the housing 11 in a state of being inserted into the mounting hole 31 of the connector 3 and the fixing hole 111 on the rear surface of the housing 11. Details of the plurality of coupling members 4 will be described later.

[0030] (Arrangement of the fixing holes 111) As shown in FIG. 3, as the plurality of fixing holes 111, a first fixing hole 112 and a second fixing hole 113 are provided. These plurality of fixing holes 111 are formed on a straight line connecting a pair of positioning pins 2 on the rear surface of the housing 11.

[0031] The relative positional accuracy between the connector 3 and the mating component connected to the connector 3 depends on the mounting position of the housing 11 with respect to the rack. In the present embodiment, since the positioning pins 2 are provided, the housing 11 can be accurately positioned at a predetermined position. However, if the fixing holes 111 are greatly separated in the vertical direction from the straight line connecting the first positioning pin 2A and the second positioning pin 2B, due to the influence of errors regarding dimensions set with reference to the positioning pins 2, the error in the mounting position of the connector 3 becomes larger compared to the configuration where the connectors 3 are arranged on the same straight line. On the other hand, in the connector mounting structure S of the present embodiment, since a plurality of fixing holes 111 are provided so as to be aligned in a straight line, the error in the position of the connector 3 in the vertical direction is reduced. As a result, in the connector mounting structure S, it is possible to facilitate the positioning of the connector 3.

[0032] The first fixing hole 112 has a first inner diameter. The first fixing hole 112 is a hole into which the first coupling member 41 is inserted. The first fixing hole 112 is, for example, a hole into which an M2.6 screw is inserted.

[0033] The second fixing hole 113 has a second inner diameter. The second inner diameter is larger than the first inner diameter. The second fixing hole 113 is a hole into which the second coupling member 42 is inserted. The second fixing hole 113 is, for example, a hole into which an M3 screw is inserted.

[0034] The electronic device 1 is provided with a first coupling member 41 and a second coupling member 42 as a plurality of coupling members 4. The first coupling member 41 has a first diameter. The first coupling member 41 is, for example, an M2.6 screw. The first coupling member 41 is inserted into the other mounting hole 31 among the plurality of mounting holes 31 of the connector 3 and the first fixing hole 112.

[0035] The second coupling member 42 has a second diameter. The second diameter is larger than the first diameter. The second coupling member 42 is, for example, an M3 screw. The second coupling member 42 is inserted into one mounting hole 31 among the plurality of mounting holes 31 of the connector 3 and the second fixing hole 113.

[0036] The gap between the inner circumference of one mounting hole 31 and the outer circumference of the second coupling member 42 in a state where the second coupling member 42 is inserted into one of the plurality of mounting holes 31 of the connector 3 is smaller than the gap between the inner circumference of the other mounting hole 31 and the outer circumference of the first coupling member 41 in a state where the first coupling member 41 is inserted into the other mounting hole 31 of the connector 3.

[0037] In the connector mounting structure S, due to such a configuration, the play of one mounting hole 31 of the connector 3 is reduced, so that it is difficult to cause displacement of the housing 11 of the connector 3 with respect to the rear surface. As a result, in the connector mounting structure S, it is possible to facilitate the positioning of the connector 3.

[0038] The protruding amount of the positioning pin 2 protruding from the rear surface of the housing 11 is larger than the protruding amount of the connector 3. Since the protruding amount of the positioning pin 2 is large in this way, when the electronic device 1 is inserted into the rack, after inserting the positioning pin 2 into the hole of the backboard behind the electronic device 1, the connector 3 can be connected to the connector of the backboard. As a result, in the connector mounting structure S, it is possible to facilitate the connection of the connector 3 to the connector of the backboard behind the electronic device 1.

[0039] Both the second coupling member 42 of the first connector 3A and the second coupling member 42 of the second connector 3B are provided on the side closer to one of the pair of positioning pins 2. Specifically, both the second coupling member 42 that couples the first connector 3A to the rear surface of the housing 11 and the second coupling member 42 that couples the second connector 3B to the rear surface of the housing 11 are provided on the side closer to the first positioning pin 2A in the width direction of the electronic device 1.

[0040] In the connector attachment structure S, with such a configuration, as an example, with one positioning pin 2 (for example, the first positioning pin 2A) as a reference, each second fixing hole 113 into which the second coupling member 42 is inserted is machined. The second fixing hole 113 is a hole into which an M3 screw is inserted, and is a hole that requires high positional accuracy for positioning the connector 3. The fact that such holes are provided on the side closer to the first positioning pin 2A in each connector 3 is preferable in that it can reduce the dimension between the hole and the first positioning pin 2A, reduce the influence of manufacturing dimensional errors, and improve the positioning accuracy of the connector 3.

[0041] [Effects of the connector attachment structure S according to the present embodiment] In the connector attachment structure S according to the present embodiment, as described above, the plurality of fixing holes 111 are formed on a straight line connecting the plurality of positioning pins 2 on the rear surface of the housing 11 of the electronic device 1.

[0042] In the connector attachment structure S, by providing the plurality of fixing holes 111 in a line like this, the error in the position of the connector 3 in the vertical direction is reduced. As a result, in the connector attachment structure S, it is possible to facilitate the positioning of the connector 3.

[0043] Also, in the present embodiment, the connector 3 is fixed with M3 screws and M2.6 screws having different thicknesses. While temporarily fixing the connector 3 with high positional accuracy using the M3 screws, the final fixing of the connector 3 is performed with the M2.6 screws, and the connector 3 can be accurately attached to a desired position.

[0044] As described above, the present invention has been explained using the embodiments. However, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist. For example, all or part of the device can be configured by functionally or physically dispersing and integrating it in any unit. Also, new embodiments resulting from any combination of a plurality of embodiments are included in the embodiments of the present invention. The effects of the new embodiments resulting from the combination have the effects of the original embodiments combined.

Explanation of Reference Numerals

[0045] S ··· Connector mounting structure 1 ··· Electronic device 11 ··· Housing 111 ··· Fixing hole 112 ··· First fixing hole 113 ··· Second fixing hole 114 ··· Opening 2 ··· Positioning pin 2A ··· First positioning pin 2B ··· Second positioning pin 3 ··· Connector 31 ··· Mounting hole 3A ··· First connector 3B, 3Ba, 3Bb ··· Second connector 4 ··· Coupling member 41 ··· First coupling member 42 ··· Second coupling member

Claims

1. A housing of an electronic device, comprising a housing having a plurality of fixing holes on the rear surface, a plurality of positioning pins for positioning the electronic device with respect to a backboard behind the electronic device, the plurality of positioning pins being provided at positions spaced apart from each other in the width direction of the electronic device on the rear surface, a connector provided between the plurality of positioning pins and having a plurality of mounting holes, a plurality of coupling members for coupling the connector to the rear surface, the coupling members coupling the connector to the rear surface in a state of being inserted into the mounting holes and the fixing holes, characterized by comprising a connector mounting structure in which the plurality of fixing holes are formed on a straight line connecting the plurality of positioning pins on the rear surface.

2. As the plurality of coupling members, a first coupling member having a first diameter, a second coupling member having a second diameter larger than the first diameter, are provided, wherein a gap between an inner periphery of one of the mounting holes and an outer periphery of the second coupling member in a state where the second coupling member is inserted into one of the plurality of mounting holes is smaller than a gap between an inner periphery of the other mounting hole and an outer periphery of the first coupling member in a state where the first coupling member is inserted into the other mounting hole, The connector mounting structure according to claim 1.

3. A protruding amount of the positioning pin protruding from the rear surface is larger than a protruding amount of the connector, The connector mounting structure according to claim 1 or 2.

4. The plurality of positioning pins are a pair of positioning pins provided on both sides of the rear surface of the electronic device, the connector has a first connector and a second connector arranged side by side in the width direction of the electronic device, the second coupling member of the first connector and the second coupling member of the second connector are both provided on a side closer to one of the pair of positioning pins, The connector mounting structure according to claim 2.

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