JPH088531Y2 - Terminal block connector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block connector used for connecting a control busbar of a switchboard or a control panel.

[0002]

2. Description of the Related Art As a conventional bus bar connection, there is a system for pulling a bus bar 101 into a board 102 and sending it to an adjacent board as shown in FIG. 7, and when a connector is used, the same method is used. There is. When a connector is used as an example, as shown in FIG. 8, when a connector 202 is attached to one board 201, a fire due to an arc loss in the adjacent board 203 or smoke having a thermal element passes through the connector 202. It was possible to infiltrate.

Also, as shown in FIG. 9, a concave connector
If the work of removing the 301 is not performed, there is a risk that the concave connector 301 may be damaged when the board 302 is moved even if the convex connector is pulled out. In addition, there is a conventional terminal block connector formed of a molded product that houses a plurality of contacts. If there are multiple poles, the male contact and female contact are built in and connected to the integrated male and female cases.Although it has a unit structure, the male unit has male contacts and the female unit has female contacts. There were things that could be built in and connected. These are what are commonly called standard connectors. However, there is no terminal block connector in which a so-called spring-up type screw holding terminal is provided in the terminal block portion of the terminal block connector.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned drawbacks and to provide a connector which prevents damage to the concave connector and adverse effects between boards.
In the connector, a plurality of contacts are connected at equal pitch intervals by insertion and removal, and an error between the pitches causes a decrease in contact reliability. Also,
It is sometimes said that the load for insertion and extraction is fairly heavy when inserting and extracting. Furthermore, when wiring the terminals with screws, it is desirable to add a spring-up type screw holding mechanism for convenience of connection, but it was difficult for the connector to be constructed in a normal shape. Moreover, forming contacts in the horizontal and vertical directions with respect to the terminals was not seen in the integrated connector, but was seen in some of the unit systems, but many units were taken. For this reason, there is a problem in that the molding accuracy of the unit is incorrect, and if many units are tightened with bolts, etc., deformation occurs and the dimensions change, which affects plug insertion / removal and reduces contact reliability. It was

[0005]

In view of the above-mentioned circumstances, the present invention is designed so that the insertion portion of the concave connector is located on the mounting side of the panel so that the concave connector does not protrude from the panel. In addition, the concave side connector and the contact are wrapped with a nonflammable resin, and the space between the panel and the panel is sealed.

In view of the above-mentioned circumstances, the present invention is configured such that the plug side is integrally formed and the socket side that receives the plug side is also integrally formed. However, the socket side is a unit that accommodates the terminal portion and the contact portion. The socket portion of the connector was formed by inserting into the integral molding on the socket side.
The unit part is formed horizontally and vertically with the terminal part, and the contact at the lower position of the terminal part is fitted on one side of the unit, and the contact at the higher position of the terminal part is fitted on the other side to make a zigzag state of the terminal part, After forming a contact in the socket of the connector, the terminal block connector was constructed by tightening with a bolt.

[0007]

In the present invention, the adjacent panel is not damaged at all, and the invasion of the combustion gas or the like which affects the adjacent control panel is prevented in advance. Further, in the present invention,
The unit eliminates the expansion of variations due to dimensional errors instead of the integrally molded plug and socket, and enables smooth insertion and extraction of the connector, improving contact reliability. Further, the unit structure accommodates a possible spring-up type screw holding structure and is integrally assembled with the plug, which provides convenience of connection work.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on specific embodiments shown in the accompanying drawings. As shown in FIG. 1, the terminal block connector 41 is attached to the control panel 40, and the connector plug 6 is inserted from the adjacent control panel 42 side. Terminal block connector
41 is a mold and is formed in a sealed state. FIG. 2 shows an example of using the terminal block connector 41 of the present invention when a plurality of control boards 43, 44 and 45 are arranged side by side. Reference numeral 46 is an internal device, reference numeral 47 is a control bus, and reference numeral 48 is a connection line.

FIG. 3 is a perspective view showing one of the insulating units 2 of the terminal block connector, and the insulating unit 2 is provided with two contacts 1a and 1b. FIG. 4 is a side view of FIG. 3, in which the insulating unit 2 is equipped with two contacts 1a and 1b. FIG. 5 is a perspective view of the contact 1, in which one thin metal plate is bent and formed, and the terminal screw mounting piece 12 is continuously provided by bending the base piece 11 at a right angle. A screw hole 13 into which the terminal screw 9 is screwed is formed in the center, and two connector connecting pieces 15 are formed on the other end side of the base piece 11 via a connecting piece 14 bent at a right angle. Connect 16 The connector connecting piece 15 is directed in the direction opposite to the protruding direction of the terminal screw mounting piece 12, and is provided with a step so as to project in parallel. The other connector connecting piece 16 faces in a direction orthogonal to the projecting direction of the terminal screw mounting piece 12, is parallel to the base piece 11, and forms a groove shape 17 with the base piece 11 and the connecting piece 14. The connecting piece 15 and the connecting piece 15 are bent at right angles and are continuously provided.

The contacts 1a-1 formed in this way
When the two b's are attached to the insulating unit 2, it becomes as shown in FIGS. The first contact 1a is an insulating unit 2
The second contact 1b is arranged on the other side surface on one side surface, and the terminal screw mounting pieces 12a and 12b are provided with a step in the vertical direction, and the terminal screw mounting piece 12a of the first contact 1a is arranged on the other side surface. Terminal screw mounting piece 12 for 2 contacts 1b
It is set at a position lower than b. Both the first contact 1a and the second contact 1b are fitted in the insulating unit 2 with groove-shaped shapes 17a and 17b formed by the base pieces 11a and 11b, the connecting pieces 14a and 14b, and the connector connecting pieces 16a and 16b. To install. The fitting portion of the second contact 1b is not shown. The connector connecting pieces 15a and 15b of the contacts 1a and 1b are parallel to the terminal screw mounting pieces 12a and 12b and project from the rear surface of the insulating unit 2. The connector connecting pieces 16a and 16b are the terminal mounting pieces 12a and 12b, respectively. It is orthogonal to and protrudes from the bottom side. The connector connection pieces 15a, 15b, ... arranged in parallel on the horizontal plane can be detached by inserting the connector plug 6, and the connector connection pieces 16a, 16b, ... arranged in parallel on the vertical surface can be It can be removed by inserting the connector plug 6.

Terminal screw mounting piece 12 for contacts 1a and 1b
The guide piece 8 is urged upward by the coil springs 18 on the a and 12b so that a gap is maintained between the terminal screw 9 and the terminal screw mounting pieces 12a and 12b, and a crimp terminal (not shown) is provided in the gap portion. Place on the terminal screw mounting pieces 12a and 12b of the
The screw holes (13a ・ 13) by pushing down with a screwdriver (not shown).
It is screwed to b and connected by wiring.

As shown in FIG. 6, a large number of insulating units 2 are housed in a case 3, and insulating walls are provided between the insulating units 2.
21 is projected and connected with a tightening bolt 49. Case 3
Contact plug insertion holes are formed so that contact plugs can be inserted and connected to the horizontal and vertical contacts of the insulating unit 2 housed therein.

[0013]

As described above, according to the present invention, since the terminal block connector is molded in the hermetically-sealed state with the insulating body, it is possible to prevent hot air from invading from the adjacent control panel.
The control panel can be moved simply by removing the connector plug. Further, the present invention provides a terminal block connector in which a thin metal plate is formed by bending, and a contact having a terminal screw attachment piece and two connector contact pieces protruding from each other is attached to an insulating unit as described above. , One connector connecting piece of the two connector connecting pieces is protruded in a direction opposite to the protruding direction of the terminal screw mounting piece, and the other connector connecting piece is protruded of the terminal screw mounting piece. Since it is installed so as to project in the direction orthogonal to the direction, when connecting the wiring connection of the equipment installed inside and the power cable or signal cable from the outside in a general control panel or control box Can be used and is also useful.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a terminal block connector and a connector plug of the present invention.

FIG. 2 is a vertical cross-sectional view showing an outline of the whole of a specific embodiment of the present invention.

FIG. 3 is a perspective view of an insulating unit.

FIG. 4 is a side view of an insulating unit.

FIG. 5 is a perspective view of the contact of the present invention.

FIG. 6 is a perspective view of an insulating unit housed in a case of the present invention.

FIG. 7 is a perspective view of a conventional control panel.

FIG. 8 is a vertical cross-sectional view in which conventional control boards are connected by connectors.

FIG. 9 is a vertical cross-sectional view in which conventional control panels are connected by connectors.

[Explanation of symbols]

 12… Electronic screw mounting piece 15… Connector connecting piece

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noboru Kise 3-4-1 Nomura, Kusatsu-shi, Shiga Fuji Electric Industry Co., Ltd. Kusatsu Manufacturing Co., Ltd. (72) Inventor Takahiro Usagawa 3-4-2 Nomura, Kusatsu-shi, Shiga 1 Fuji Electric Industry Co., Ltd. Kusatsu Plant (72) Inventor Kenji Furukawa 3-chome, Yoshino-cho, Nishibiwajima-cho, Nishikasugai-gun, Aichi Prefecture Takadake Plant Co., Ltd. (72) Atsushi Koide Nishibiwajima-cho, Nishikasugai-gun, Aichi Prefecture 3-chome, Yoshino-cho, Takadake Manufacturing Co., Ltd. (56) References: 62-140812 (JP, U) Actual: 56-3895 (JP, Y1)

Claims (4)

[Scope of utility model registration request] 1. A terminal block connector capable of sequentially connecting a control bus of a control panel from a main control panel to a plurality of sub-control panels, wherein contacts are formed in a horizontal direction and a vertical direction with respect to a terminal portion. It is equipped with a spring-up type screw holding mechanism that lifts the screw against the contact with a spring, and inserts the plug into the horizontal contact or the vertical contact by connecting the bus bar of the main control board and the sub-control board with a horizontal or vertical connector. Detachable with
A flame-retardant resin is used to seal the space between the main control panel and the sub-control panel, and holes are provided in the panel of the panel where the contacts face each other and the panel of the panel next to each other so that a connector plug can be inserted from within the panel next to each other A terminal block connector characterized by setting the contact plug so that it does not protrude from the board by removing the contact plug. 2. A terminal block connector capable of sequentially connecting a control busbar of a control panel from a main control panel to a plurality of sub-control panels, wherein contacts are formed in horizontal and vertical directions with respect to a terminal portion. A spring-up type screw holding mechanism that lifts the screw against the contact with a spring is provided, and the lower part screw part is arranged on one side of the insulation unit and the upper part screw part is arranged on the other side, and the crimp terminal connection part is the same shape on the top and bottom. A terminal block connector, characterized in that a connector block, which is formed by assembling and assembling a plurality of assembled insulating units, is housed in a case. 3. The terminal block connector according to claim 2, wherein a contact plug insertion hole is formed at a position facing the contact of the case. 4. Forming a barrier for insulating between conductive parts of an insulating unit assembled in an integrally formed connector block, and forming a recess for inserting the barrier in the insulating unit to withstand use of high voltage. The second aspect of the present invention.
Terminal block connector described in item.