JP2003346940A - Relay terminal block and power supply unit with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a relay terminal block for a power supply having a plug-in connector function in addition to a function of a cable relay terminal block, and improving the compatibility and manufacturing performance with a simple structure. <P>SOLUTION: This relay terminal block for a power supply is used for electrically connecting a feeding cable 4 connected to one of a pair of crimp terminals 14, and a feeding cable 5 connected to the other crimp terminal 15, and is configurated by a terminal block body 1 having one crimp terminal 14, a plug-in connector (male) 2 mountable and demountable to the terminal block body 1 in a state of an attachment, and plug-in connector (female) 3 having the other crimp terminal 15 and fitted and connected to the plug-in connector (male) 2. Both of the function of the cable relay terminal block by the crimp terminals 14, 15, and the plug-in connector function by fitting connection of the plug-in connector (male) 2 and the plug-in connector (female) 3 can be achieved, which dispenses with a conventional in-system wiring cable. <P>COPYRIGHT: (C)2004,JPO

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a power supply relay terminal block for relaying a power cable such as a power supply cable and a power supply unit using the same.

[0002]

2. Description of the Related Art As a background of the present invention, an example of a conventional power supply relay terminal block will be described with reference to a partial sectional view of FIG.

[0003] As shown in FIG. 10, a cable connection portion in a configuration using a conventional power supply relay terminal block is configured such that a system introduction portion power supply cable 70 is connected to one end of a relay terminal block 71 attached to a panel 75 for cable fixing. It is connected by a bolt 76 and a crimp terminal 77, and is wired from the other end of the relay terminal block 71 by a real cable as an in-system wiring cable 72, reaches a filter module terminal 73, and is fixed to the filter module terminal 73 by a cable fixing bolt 76 and a crimp. The configuration is such that the power supply module 74 is connected to the terminal module 77 and is connected to the filter module wiring 74 a of the power supply module 74.

As described above, in the prior art, the relay terminal block 71
It is necessary to perform wiring with a real cable called the in-system wiring cable 72 from the power supply module 74 to the power supply module 74.

[0005]

As described above, in the configuration using the conventional power supply relay terminal block, it is necessary to perform wiring with an actual cable in the system. Problems arise.

First, since the terminal block main body must be fixed to a panel such as a frame or a cabinet, the power supply cable must be directly wired to this panel, and variations in the method of binding and securing the power supply cable and the wiring method. From
There is a disadvantage that the manufacturing quality is not stable, and furthermore, there is a problem that workability is poor because wiring work is performed for each rack or cabinet.

Further, there is a need for a space for processing the extra length of the relay wiring cable in the system connecting the relay terminal block and the power supply module, and there is a problem that the mounting space allocated to the module is limited.

Further, even if the same circuit is formed into a module, it is necessary to change the design of a structural portion to be a mounting portion of the relay terminal block, so that there is a problem that the circuit cannot be easily replaced. When the replacement work occurs, the work is complicated, such as attaching and detaching the cable, and there is a problem that the replacement cannot be easily performed.

An object of the present invention is to solve the above-mentioned conventional problems and to provide a power supply relay terminal block having a simple configuration and excellent in compatibility and manufacturability.

[0010]

According to the present invention, there is provided a power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and a power supply cable connected to the other terminal. A relay terminal block, comprising: a terminal block main body having the one terminal and having a conductive connection member attached thereto; and a detachably attachable and electrically conductive connection to the conductive connection member of the terminal block main body. A plug-in connector (male) having a plug-side contact, and a receptacle-side contact having the other terminal, which is fitted into and connected to the plug-side contact and is electrically connected to the other terminal. A plug-in connector (female) that is fitted and connected to the plug-in connector (male).

In this power supply relay terminal block, the terminal block main body to which the plug-in connector (male) is mounted is mounted on a panel, and the plug-in module is mounted in the panel, and the plug-in module is mounted on the housing. A connector (female) may be attached.

In these power supply relay terminal blocks, the plug-in connector (male) includes a connector housing,
It shall be fastened and held by a screw threaded at one end of the plug-side contact and a receiving nut attached to the conductive connecting member of the terminal block main body.

A power supply unit having a power supply relay terminal block according to the present invention is a power supply unit comprising a filter module of a system power input unit as a plug-in module, and a shelf side on which the plug-in module is mounted. The terminal block main body and the plug-in connector (male) according to claims 1 to 3 are attached to the plug-in module, and the plug-in connector (female) according to claim 1 to 3 is attached to the plug-in module side. When the plug-in module is mounted on the shelf, the plug-in connector (female) and the plug-in connector (male) are fitted and connected.

In these power supply relay terminal blocks,
It is preferable that the plug-side contact has a floating function.

Another power supply relay terminal block according to the present invention is a power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and a power supply cable connected to the other terminal. A plug-in connector (male) attached to a panel having a plug-side contact that is conductively connected to the one terminal, and a plug-in connector (male) having the other terminal and fitted and connected to the plug-side contact; A plug-in connector (female) having a receptacle-side contact conductively connected to the other terminal and fitted and connected to the plug-in connector (male).

Further, another power supply relay terminal block according to the present invention includes:
A power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of the pair and a power supply cable connected to the other terminal, the terminal being mounted on a panel by mounting a conductive connection member. A base body, wherein the one terminal is attached to one end of the conductive connecting member, and the other terminal is attached to the other end of the conductive connecting member.

Still another power supply relay terminal block according to the present invention is a power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and another solderable power supply terminal. Having a terminal block main body attached to a printed wiring board by mounting a conductive connection member, wherein the one terminal is provided at one end of the conductive connection member, and the other power supply terminal is provided at the other end of the conductive connection member. Respectively.

[0018]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a basic configuration of the present invention as a first embodiment, and corresponds to claim 1. FIG. 2 is a cross-sectional view showing a second embodiment corresponding to claim 2, FIG. 3 is an exploded cross-sectional view showing a main part of FIGS. 1 and 2 corresponding to claim 3, and FIG. It is sectional drawing which shows the example of application of embodiment.

The basic configuration of the present invention is, as shown in FIG. 1 as a first embodiment, a power supply cable 4 connected to one pair of crimp terminals 14 and a power supply cable connected to the other crimp terminal 15. In a power supply relay terminal block for electrically connecting the cable 5, a terminal block main body 1 having one crimp terminal 14, a plug-in connector (male) 2 detachably attached to the terminal block main body 1 as an attachment, The other crimp terminal 1
5 and a plug-in connector (female) 3 which is fitted and connected to the plug-in connector (male) 2.

More specifically, as shown in FIGS. 2 and 3, a conductive connection wiring board 6 as a conductive connection member is attached to the terminal block main body 1 in a substantially U-shape. The crimp terminal 14 and the power supply cable 4 (shown as a cable 14a with a crimp terminal in FIG. 2) with the cable fixing bolt 7.
To the other end of the conductive connection wiring board 6.
A plug-in connector (male) 2 having a male pin 12 to be conductively connected is installed. The plug-in connector (female) 3
It has a receptacle-side pin 13 that is conductively connected to the crimp terminal 15 and the power supply cable 5 (shown as a cable 15a with a crimp terminal in FIG. 2). In this configuration, the connector (male) 2 is fitted and connected.

According to such a configuration, one side (plug-in connector (male) 2) of a plug-in connector that can be attached as an attachment is attached to one of the terminal block main bodies 1 that relay the power supply cables 4, 5. This makes it possible to realize a two-piece connector-like terminal block having a plug-in function in addition to the function of the terminal block as a cable repeater.

As shown in FIG. 2 as a second embodiment, the terminal block main body 1 and the plug-in connector (male) 2 are attached to the panel 16 and the plug-in connector (female) 3 is attached to the panel 17. By adopting a detachable structure like a two-piece connector, it is possible to separate and independently connect the wiring portion of the electronic circuit conventionally included in the rack or the wiring in the cabinet.

In this configuration, as will be described later, the fitting of the male pin 12 may be devised so that the plug-in connector (male) 2 and the plug-in connector (female) 3 have a floating function. It is possible (claim 5
Corresponding to).

Next, the configuration of the terminal block main body 1 and the plug-in connector (male) 2 serving as an attachment will be described with reference to FIG. This configuration corresponds to claim 3.

Conductive connection wiring board 6 attached to terminal block body 1
A cable fixing bolt receiving nut 8 and a male pin receiving nut 9 are built in the front and rear of the inside, and these nuts are connected and fixed to the conductive connection wiring board 6. The power supply cable, which has been crimped to the cable receiving bolt receiving nut 8, is penetrated and fastened by the cable fixing bolt 7, whereby connection to an external circuit is made. On the other hand, a plug-in connector (male) 2 serving as an attachment has a plug-in connector housing 10 inserted and fixed to the male pin receiving nut 9 side of the terminal block main body 1 and a male pin 12 having a screw 12a screwed at one end thereof is offset. After penetrating the plug-in connector housing 10 through the collar 11, the screw 12a of the male pin 12 is fastened to the male pin receiving nut 9 and fixed. Thus, the plug-in connector housing 10 and the male pin 12
Are detachably held in the terminal block main body 1 as an attachment, and the two-piece connector of the relay terminal block is completed.

Here, an assembling method for incorporating a floating function according to claim 5 will be described. In the configuration of the plug-in connector (male) 2 described above, the conductive connection wiring board 6 is loosely assembled to the terminal block main body 1, and the cable fixing bolt 7 and the cable fixing bolt receiving nut 8 or the male pin 12 and the male The pin receiving nut 9 is assembled to the terminal block main body 1 with some backlash. On the other hand, the plug-in connector housing 10
Is assembled to the terminal block main body 1 by fastening the male pins 12 to the male pin receiving nuts 9, but the terminal block main body 1 is assembled at the time of assembling via the offset collar 11, similarly to the conductive connection wiring board 6 described above. The terminal block with a floating function required for plug-in connection between the plug-in connector (male) 2 and the plug-in connector (female) 3 can do.

As an application of the terminal block body and the attachment as described above, for example, if the cable fixing bolt 7 is fastened to the male pin receiving nut 9 instead of the plug-in connector housing 10, the conventional terminal block can be used. Similar to the configuration, it can be used as a single use terminal block,
Further, for example, the plug-in connector (male) 2 which is an attachment has a structure that can be assembled using the cable fixing bolt 7 in common, or the screw 14a with the crimp terminal can be directly screwed. It can also be used as a plug-in connector.

Next, an application example of the second embodiment will be described with reference to FIG. The relay terminal block has a two-piece connector configuration, and another module is plugged in.

The terminal block main body 1 to which the plug-in connector (male) 2 is mounted is mounted on a shelf 18.
Plug-in connector (female) in case 19 mounted inside
3 is attached, and the entire inside of the case 19 is configured as a plug-in module 19a. By mounting the case 19 on the shelf 18 in the direction of the arrow, the plug-in connector (male) 2 and the plug-in connector (female) 3 are fitted and connected, and the relay terminal block and the module are connected in the shelf 18. No internal relay wiring cable is required. An example in which the configuration of the application example of the second embodiment is suitably applied to an actual device is a power supply unit described below.

FIG. 5 is a perspective view showing the entire structure of a power supply unit according to a third embodiment of the present invention, and FIG.
FIG. 2 is an exploded perspective view showing a main part of FIG.

The power supply unit according to the third embodiment comprises:
The filter module (power supply module) of the system power supply input unit is shown as a power supply unit 20 configured as a plug-in module by taking in the system wiring cable.

That is, as shown in FIGS. 5 and 6, the terminal block main body 21 of the relay terminal block was attached to the plug-in module mounting shelf 24, and the plug-in connector (male) 22 as an attachment was attached to the terminal block main body 21. Thereafter, the shelf is mounted on a predetermined cabinet or a rack, and the plug-in module mounting shelf 24 is completed. The power supply cable 2 for the system introduction section is provided on the terminal block main body 21.
7 are connected via crimp terminals 28 and terminal fastening bolts 29.

This plug-in module mounting shelf 2
4, a plug-in module 25 is mounted. The plug-in module 25 separates and incorporates a panel 26 in the form of a bus bar 30 from the in-system wiring cable to the filter module wiring as described in the related art. The above-described plug-in connector (male) 2 on the panel 26
2, a mounting hole 26a is formed, and a plug-in connector (female) 23 is mounted in this hole.

When the power supply unit 20 is configured as described above and the plug-in module 25 is mounted on the plug-in module mounting shelf 24, the plug-in connector (male) 22 and the plug-in connector (female) 23 are fitted. Will be connected.

In the power supply unit according to the third embodiment, a plug-in connector (male) 22 is attached to the terminal block main body 21 as an attachment, and the plug-in connector (female) 23 is fitted and used. By adopting the configuration of the piece connector, it is possible to change the wiring from the conventional system wiring cable to the wiring inside the filter module to parts such as the bus bar 30 for direct connection, so that a mounting structure without the system wiring cable is possible. Becomes Due to such a structural change, the installation from the wiring cable in the system to the wiring in the filter module, which was conventionally included in the manufacturing process of the cabinet or housing, is a separate process,
It is possible to have a configuration in which all the wirings are integrated as modules.

FIG. 7 is a sectional view showing a two-piece terminal block according to a fourth embodiment of the present invention.

In this two-piece terminal block, a plug-in connector (male) 40 and a plug-in connector (female) 42 are fitted and connected. A male pin 41 and a receptacle-side pin 43 are attached to the plug-in connector (male) 40 and the plug-in connector (female) 42 by cable fixing bolts 45, respectively. 44 is tightened. The plug-in connector (male) 40 is attached to a panel 48 via a lock receiver 47, and the plug-in connector (female) 42 is held by a screw lock 46. The plug-in connector (male) 40 and the plug-in connector (female) 42 are connected to the male pin 41 and the receptacle-side pin 43 by moving the screw lock 46 in the direction indicated by the arrow and inserting and fixing it in the lock receiver 47.
Is mated and connected. In this manner, a two-piece terminal block that can be detachably used as needed through the connector is obtained, and the plug-in connector (female) 42 can be used as a cable connector.

FIG. 8 is a sectional view showing a panel mounting type relay terminal block according to a fifth embodiment of the present invention.

The terminal block main body 50 is mounted on a panel 56, and receiving nuts 52 are provided on the front and rear sides of a substantially U-shaped conductive connection wiring board 51 mounted on the terminal block main body 50, respectively.
The inside of the panel 56 is connected to the outside by fastening the cable 54 with the crimp terminal from the front and the rear through the cable receiving bolts 55 to the receiving nuts 52 and 53 respectively.

FIG. 9 is a sectional view showing a printed wiring board-attached relay terminal block according to a sixth embodiment of the present invention.

The terminal block main body 60 is attached to the printed wiring board 67 (or the front plate 68).
Receiving nuts 62 and 63 are built in the front and rear sides of the substantially U-shaped conductive connection wiring board 61 attached to the terminal block main body 60, respectively. 64 is fastened through.
On the other receiving nut 63, a soldering terminal 66 that can be soldered to the printed wiring board 67 is connected to the cable fixing bolt 6.
Use 5 to fasten. At the same time, the printed wiring board 67
Or the front plate 6 of the printed wiring board 67
If the terminal block main body 60 is screwed and fixed to 8, a printed wiring board mounting type relay terminal block is formed.

As described above, as described in the first to sixth embodiments, the present invention naturally has the structural features of a relay terminal block with a plug-in connector that can be attached as an attachment. In addition, it has features of design easiness, compatibility, and manufacturability.

From the viewpoint of ease of design, the structure of the panel portion for mounting the relay terminal block of the present invention and the assembling method are the same as those of the related art, and the attachment for adding the plug-in function is directly attached to the terminal block main body. Since it is configured to be incorporated, there is no need to change the structure for plug-in. In other words, as long as the relay terminal block is attached, the subsequent wiring and accommodation inside the system can be handled without any structural change, regardless of whether it is a direct cable drawing configuration or a plug-in module configuration. The degree of freedom can be improved.

From the viewpoint of compatibility, even if the internal cable of the existing system is a wiring directly drawn from the relay terminal block, it can be changed to a plug-in connector only by adding the attachment of the present invention. It is possible to use another modularized wiring container without changing the structure of the base mounting portion.

From the viewpoint of manufacturability, the conventional relay terminal block requires the work of assembling a harness material to a cabinet or a housing for each system or product, whereas the relay terminal block of the present invention requires a cable. Since the fixing portion of the device has a structure that can be detached in the form of an attachment, the assembling of the harness material and the assembling to the cabinet or the housing can be configured as separate processes, so that improvement in workability can be expected.

[0047]

As described above, according to the present invention, it is possible to obtain a structure of a power supply relay terminal block with a plug-in connector that can be attached as an attachment, and to provide a plug in addition to the function of the terminal block as a cable relay. Since a two-piece connector-like terminal block having an in-function can be configured, the following effects can be expected.

(1) A configuration capable of accepting both the functions of the relay terminal block and the plug-in connector without changing the design is obtained.

(2) Wiring built into a conventional rack or cabinet can be separated and plug-in modules can be easily formed.

(3) The wiring work, which has been handled as part of assembling the frame or cabinet, can be separated and independent, and the manufacturability and productivity can be improved.

(4) Since it is not necessary to use a wiring cable in the system such as a power supply cable, a member having good assemblability such as a bus bar can be positively employed.

(5) Stable manufacturing quality can be ensured because the number of power supply cables that cause variations in length, binding, and the like is reduced.

(6) By eliminating wiring cables in the system such as a relay cable, it is not necessary to process an extra length, and a mounting space for a module can be secured.

(7) By plugging in an electronic circuit having a main function, replacement and maintenance work in the event of a malfunction can be performed quickly and easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a basic configuration of the present invention as a first embodiment.

FIG. 2 is a sectional view showing a second embodiment of the present invention.

FIG. 3 is an exploded sectional view showing a main part of FIGS. 1 and 2 in detail.

FIG. 4 is a sectional view showing an application example of the second embodiment of the present invention.

FIG. 5 is a perspective view illustrating an overall configuration of a power supply unit according to a third embodiment of the present invention.

FIG. 6 is an exploded perspective view showing a main part of FIG. 5 in detail.

FIG. 7 is a sectional view showing a two-piece terminal block according to a fourth embodiment of the present invention.

FIG. 8 is a sectional view showing a panel-attached relay terminal block according to a fifth embodiment of the present invention.

FIG. 9 is a cross-sectional view illustrating a relay terminal block of a printed wiring board mounting type according to a sixth embodiment of the present invention.

FIG. 10 is a side view including a partial cross-sectional view of an example of a conventional power supply relay terminal block.

[Explanation of symbols]

1, 21, 50, 60 Terminal block main body 2, 22, 40 Plug-in connector (male) 3, 23, 42 Plug-in connector (female) 4, 5 Power supply cable 6, 51, 61 Conductive connection wiring board 7, 45, 55, 65, 76 Cable fixing bolt 8 Cable fixing bolt receiving nut 9 Male pin receiving nut 10 Plug-in connector housing 11 Offset collar 12, 41 Male pin 12a Screw 13, 43 Receptacle side pin 14, 15, 28, 77 Crimp Terminals 14a, 15a, 44, 54, 64 Cables with crimp terminals 16, 17, 26, 48, 56, 75 Panel 18 Shelf 19 Case 19a Plug-in module 20 Power supply unit 24 Plug-in module mounting shelf 25 Plug-in module 27 , 70 System introduction power supply cable 29 Terminal clamp Bolt 30 bus bar 46 screw lock 47 lock receiving 52,53,62,63 receive nuts 66 soldered terminal 67 printed circuit board 68 front plate 71 a relay terminal block 72 in the system interconnection cable 73 within the filter module terminal 74 supplying module 74a filter module wire

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Toshiaki Yabu             NEC Corporation 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation             In the formula company (72) Inventor Shingo Wada             NEC 4-4-2 Mita, Minato-ku, Tokyo NEC             Communication System Co., Ltd. (72) Inventor Takahiro Matsuda             NEC 4-4-2 Mita, Minato-ku, Tokyo NEC             Communication System Co., Ltd. F term (reference) 5E023 AA02 AA08 AA11 AA26 BB02                       BB11 BB28 BB29 EE02 FF09                       FF11 GG02 GG12 GG15 HH01                       HH18 HH20 HH26                 5E086 CC46 DD05 DD15 DD20 DD32                       DD45 DD49 JJ03 LL04 LL12                       LL14 LL16                 5E087 EE02 EE07 FF03 FF06 FF13                       GG12 HH01 MM05 MM08 MM12                       QQ03 RR23 RR28 RR29 RR36

Claims (8)

[Claims] 1. A power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and a power supply cable connected to the other terminal, the power supply relay terminal block having the one terminal. A terminal block main body on which a conductive connection member is mounted, and a plug-in connector (male) having a plug-side contact detachably attached to the conductive connection member of the terminal block main body as an attachment and conductively connected to the one terminal. A plug-in connector having the other terminal and having a receptacle-side contact fitted and connected to the plug-side contact and electrically conductively connected to the other terminal, and fitted and connected to the plug-in connector (male); (Female), and a power supply relay terminal block. 2. The terminal block main body to which the plug-in connector (male) is mounted is mounted on a panel, and the plug-in connector (female) is mounted on a housing of a plug-in module configuration mounted in the panel. The power supply relay terminal block according to claim 1, wherein: 3. The plug-in connector (male) fastens and holds the connector housing with a screw threaded at one end of the plug-side contact and a receiving nut attached to the conductive connection member of the terminal block main body. The power supply relay terminal block according to claim 1, wherein: 4. A power supply unit comprising a filter module of a system power input section as a plug-in module, wherein the terminal block main body according to claim 1 is provided on a shelf side on which the plug-in module is mounted. The plug-in connector (male) is attached, and the plug-in connector (female) according to claim 1 is attached to the plug-in module side, and the plug-in module is mounted on the shelf. A power supply unit having a power supply relay terminal block, wherein a plug-in connector (female) and the plug-in connector (male) are fitted and connected. 5. The power supply relay terminal block according to claim 1, wherein the plug-side contact has a floating function. 6. A power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and a power supply cable connected to the other terminal, wherein the power supply relay terminal block is electrically connected to the one terminal. A plug-in connector (male) attached to the panel having a plug-side contact to be connected, and a receptacle-side contact having the other terminal and fitted and connected to the plug-side contact and conductively connected to the other terminal. And a plug-in connector (female) having a connector and fittingly connected to the plug-in connector (male). 7. A power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and a power supply cable connected to the other terminal, wherein a conductive connection member is mounted. A power supply relay terminal block having a terminal block main body mounted on a panel, wherein the one terminal is mounted on one end of the conductive connection member, and the other terminal is mounted on the other end of the conductive connection member, respectively. . 8. A power supply relay terminal block for electrically connecting a power supply cable connected to one terminal of a pair and a solderable power supply terminal on the other side, wherein the power supply relay terminal block is mounted with a conductive connection member and printed. Having a terminal block body attached to the wiring board,
The power supply relay terminal block, wherein the one terminal is attached to one end of the conductive connection member, and the other power supply terminal is attached to the other end of the conductive connection member.