JPH0353749B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a screwless terminal device in which a connecting conductor can be clamped between a terminal plate and a leaf spring without tools.

BACKGROUND ART Conventionally, this type of screwless terminal has a structure as shown in FIG. 4. In FIG. 4, a container body 3 is composed of a top case 1 and a bottom case 2.
Then, a terminal chamber 4, a wire hole 5, and a driver hole 6 are provided in the lower case 2, and a leaf spring 8 is provided oppositely to the terminal plate 7 inserted into the terminal chamber 4. , the release button 9 mounted so as to be movable is placed opposite to the leaf spring end 8a of the leaf spring 8 through the terminal plate 7, and a rib 1a is provided on the upper case 1 to prevent the terminal plate 7 etc. mounted in the terminal chamber 4 from floating up. It is set up. When the connecting conductor 10 is inserted into the wire hole 5,
The connecting conductor 10 enters between the terminal plate 7 and the leaf spring 8, and the elastic force of the leaf spring takes effect, and the connecting conductor 10 is pushed toward the terminal plate 7 and connected to the terminal plate 7. In addition,
When the driver 11 is inserted into the driver hole 6,
The release button 9 moves in the direction of arrow A to release the leaf spring end 8a from the connection conductor 10. Therefore, the connection conductor 10 can be easily removed. However, since the screwless terminal and the board 12 on which electrical components and the like are mounted are provided separately, one end of the lead wire 13 for wiring these two is soldered to the terminal board end 7a, and the ground end is soldered to the terminal board end 7a. It was attached to the board 12.

Problems to be Solved by the Invention In such a conventional configuration, an input terminal for supplying power, a terminal for transmitting power to other devices, an output terminal for transmitting and receiving signals from the board 12 having a control circuit, etc. Not only does the number of screwless terminals used in the device body 3 increase, but the number and thickness of the lead wires 13 increases as the current capacity increases, so it is difficult to store the lead wires 13 during assembly. The work becomes difficult, the storage space becomes large, and the container body 3 inevitably becomes large.

In addition, since the terminal chamber 4, wire hole 5, driver hole 6, etc. that constitute the screwless terminal are formed independently in the container body 3, if a screwless terminal is to be provided in another location, the Since the terminal board 7, leaf spring 8, and release button 9 must be formed in the same manner as the screwless terminal, the relative positions of the terminal plate 7, leaf spring 8, and release button 9 to fulfill the function of the screwless terminal are likely to be misaligned. The finishing precision of the terminal chamber 4 was required, and it took a lot of time and effort to make the container body 3.

Further, when the housing 3 is disassembled due to a failure, the ribs 1a of the case 1, which are provided to prevent the terminal plate 7 from floating up, come apart, and the parts constituting the screwless terminal come out of the terminal chamber 4 and fall apart. Therefore, during assembly, there was a problem in that each part had to be installed in its original position.

The present invention solves these problems,
By eliminating the lead wire that connects the board and screwless terminal,
In addition to improving ease of assembly and making the device more compact, the screwless terminal is separated from the device and is provided independently, making it versatile for other uses.Furthermore, even when the device is disassembled, the screwless terminal The purpose is to make it possible to easily assemble the components without coming apart.

Means for Solving the Problem The present invention aims to solve this problem by inserting a conductive material into the terminal case 16, which has a protrusion having a wire hole and a driver hole on the bottom of a box made of an insulating material. A terminal board consisting of a terminal board, a leaf spring that contacts and clamps a connecting conductor to the terminal board, and a release button that releases this clamping are installed, and a board on which electronic components, etc. are mounted is mounted in the open part of the terminal case. A completed terminal portion formed by soldering this board and a terminal plate is provided inside a container body consisting of a bottom case and a bottom case, and the protruding portion of the terminal case is inserted into an opening provided at the bottom of the bottom case. .

Function With this configuration, the terminal part can be directly attached to the board,
Since this is separate and independent from the device body, the wiring between the terminal part and the board can be processed using the pattern on the board, eliminating the need for lead wire wiring and storage space, improving ease of assembly, Not only can the vessel be made smaller, but it can also be used for general purposes. Furthermore, the reassembly of the vessel becomes very easy.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

Reference numeral 16 designates a terminal case formed in a box shape and made of an insulating material, with a protrusion 16a having a wire hole 14 and a driver hole 15 at the bottom, and terminal chambers 16 at both ends of the inside.
b, and hook portions 16c are provided on both side walls located above the open portion. Reference numeral 17 denotes a pair of terminal plates formed by bending a conductive material into a substantially U-shape, and the power supply terminals 17 protrude upward from both side walls.
a is provided and mounted in both terminal chambers 16b of the terminal case 16. Reference numeral 19 denotes a pair of leaf springs made of an elastic body, which are disposed opposite to each terminal plate 17. Reference numeral 20 designates a release button movably mounted between the terminal plates 17, and is opposed to the leaf spring ends 19a of both leaf springs 19. The terminal plate 17, leaf spring 19, and release button 20 described above are mounted inside the terminal case 16 and constitute a semi-finished terminal section 21.

Reference numeral 22 denotes a board on which electrical components constituting a control circuit, etc. are mounted, and a fitting hole 22a and a terminal are provided at a location located above the hook portion 16c of the terminal case 16 and the power supply terminal 17a of the terminal board 17. A hole 22b is provided, and the terminal hole 22b and the electronic components of the board 22 are connected in a pattern, and the semi-finished terminal part 21
When attached to the board 22, the hook part 16c and the fitting hole 22a are fitted to temporarily fix the terminal, and then the power supply terminal 17a and the board 22 are soldered and fixed to form the completed terminal part 23. There is.

Reference numeral 26 denotes a bottom case, which has an opening 26a formed at its bottom. 25 is a case with ribs 2 on the inside.
5a, and a container body 24 is composed of a lower case 26 and a upper case 25.

The terminal case 1 is inserted into the opening 26a of the lower case 26.
6 is inserted so as to protrude from the lower case 26, and the upper case 2 is inserted so that the rib 25a of the lower case 25 is located at the tip of the power supply terminal 17a.
5 is attached to the top case 26.

Here, when the connecting conductor 18 is inserted into the wire hole 14, since the elastic force of the leaf spring 19 is effective, the connecting conductor 18 is pushed in the direction of the terminal plate 17 and connected to the terminal plate 17. , power can be supplied to the board 22, and signals can be transmitted and received.

On the other hand, when disconnecting the connecting conductor 18 due to incorrect wiring, etc.
When the screwdriver 27 is inserted into the driver hole 15, the release button 20 moves in the direction of arrow B to separate the leaf spring end 19a from the connecting conductor 18.
8 can be easily removed and pulled out.

Note that when connecting or disconnecting the connecting conductor 18, the power supply terminal 1
In order to prevent external force from being applied to the soldered portion between the terminal case 17a and the board 22, only the tip of the power supply terminal 17a and the rib 25a of the upper case 25 come into contact when it is inserted, and when it is pulled out, the lower end surface of the terminal case 16 and the lower end surface of the lower case 26 contact each other.
It is in contact with the inner bottom surface.

Effects of the Invention As described above, according to the present invention, since the terminal portion having the function of a screwless terminal is provided independently and is directly attached to the board, storage space for wiring and lead wires is no longer required. It is easy to assemble, and the container can be made smaller and more versatile. In addition, even when the device is disassembled, the completed terminal section remains in its completed state, so when reassembling it, it is only necessary to insert the completed terminal section into the bottom case, which can improve ease of assembly and service. It is.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a screwless terminal according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of the completed terminal part, Fig. 3 is an exploded perspective view of the upper case, the completed terminal part, and the bottom case, and Fig. 4 is a sectional view showing a conventional screwless terminal. 16...Terminal case, 16a...Protrusion part, 17
... Terminal board, 17a ... Power supply terminal, 19 ... Leaf spring, 20 ... Release button, 21 ... Half-finished terminal part, 2
2... Board, 23... Completed terminal section, 24... Container body, 25... Upper case, 26... Lower case.

Claims (1)

[Claims] 1 A terminal case made of an insulating material with a protruding part having a wire hole and a driver hole in the bottom part, and a terminal plate made of a conductive material and a leaf spring that abuts and clamps the connecting conductor on the terminal plate. , a release button for releasing the connection between the connecting conductor and the leaf spring is attached, a board on which electronic components, etc. are mounted is attached to the open part of the terminal case, and this board and the terminal board are soldered to complete the process. A screwless terminal device in which a terminal part is provided inside a container body consisting of a top case and a bottom case, and a protruding part of the terminal case is inserted into an opening provided at the bottom of the bottom case.