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Inserted terminal position of switch

A terminal device and switch technology, applied in the direction of switch terminals/connections, electrical components, circuits, etc., can solve problems such as costing a lot of man-hours, and achieve the effect of maintaining stability

Inactive Publication Date: 2009-01-21
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since any of the above-mentioned "surface type" and "rear type" is to directly connect the wire or conductor to the circuit breaker, for example, when the circuit breaker needs to be replaced, the replacement takes a lot of man-hours.

Method used

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  • Inserted terminal position of switch
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  • Inserted terminal position of switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0019] figure 1 (a) is a perspective view showing the appearance of the plug-in terminal device of the switch in the state before the switch and the plug-in terminal base are combined in the first embodiment of the present invention, figure 1 (b) is a diagram showing the clamping terminal installed on the switch side, and the terminal and terminal cover installed on the side of the insertion terminal block after being pulled out. In addition, figure 2 (a) Yes figure 1 (b) The top view of the terminal cover, figure 2 (b) Yes figure 2 (a) A-A line cross-sectional view. image 3 Yes means figure 1 (a) A cross-sectional view of the clamping terminal insertion process.

[0020] in figure 1 Here, 1 is a switch including a circuit breaker such as a circuit breaker for wiring or a leakage circuit breaker, and 2 is an insertion terminal block that is pre-arranged on a panel (not shown) or the like of a switchboard. The known switch 1 is formed by an insulating housing 11, which is...

Embodiment approach 2

[0029] Figure 4 Is in the second embodiment of the present invention and figure 2 Quite a picture. As mentioned in the background art section, due to the "plug-in type", it is estimated that the number of plug-in and unplugging will increase. That is, as described in the first embodiment, it is required to ensure durability and maintain high strength of the partition portion 4a that abuts the tip portions of the first pressure contact piece 3a and the second pressure contact piece 3b. So like Figure 4 As shown, by making the thickness of the partition 4a, for example, figure 2 (b) Compared to about 2 times, the plate thickness is thicker than other parts. At the same time, a thickness adjustment part (commonly referred to as R) is provided on the part corresponding to the top wall of the partition 4a, so as to achieve the above-mentioned contact The intensity compensation, prolong life.

Embodiment approach 3

[0031] Figure 5 (a) is an external perspective view of a terminal cover in Embodiment 3 of the present invention, Figure 5 (b) is its cross-sectional view. Since the number of insertions and removals increases as described in the second embodiment, it is preferable to improve the slidability of the clamping terminal 3 with respect to the terminal cover 4. So like Figure 5 As shown, the partition 4a is not the so-called plane shown before, but has a substantially triangular cross-section, that is, an inclined surface 4d is provided opposite to the pair of insertion ports 4b, 4c, and at the same time is placed on the top wall of the partition 4a. Place chamfer 4e. Based on this, it is possible to reduce the force from the first crimping piece 3a and the second crimping piece 3b that the partition portion 4a receives when inserting and removing the clamping terminal 3, and the quality stability can be further improved.

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Abstract

The invention provides an inserting terminal device of switch capable of control the contact of the clamping terminal and the switch piece to the minimum limit by a simple structure. The device of the invention is structured by: combining the front ends of the first and second compression joint piece (3a, 3b) mounted on the clamping terminal of the switch on to the switch piece (5a) of the binding post (5) of the terminal seat (2); clamping the switch piece by the compression joint force between the first and second compression joint piece; the clamping terminal is composed by integrating the opposite first and second compression joint piece and the connection piece (3c); and a binding post cover is mounted onto the binding post in the inserting terminal device. The binding post cover comprises: a pair of inserting holes (4b, 4c) positioned to insert the first and second compression joint piece of the clamping terminal; a separating unit (4a) and a switch supporter disposed between the pair of inserting holes.

Description

Technical field [0001] The present invention relates to an insertion terminal device including a switch of a circuit breaker such as a circuit breaker for wiring or a leakage circuit breaker, and in detail, to a structure that realizes the stabilization of contact resistance when the switch is inserted. Background technique [0002] For example, in a circuit breaker that is arranged between the power supply and the load of the circuit and protects the wires or conductors from the arrangement point to the load, as its installation and connection method, especially in accordance with the condition of the conductor equipment, it is known that there is " "Surface type" or "back type", etc. However, since any of the above-mentioned "surface type" and "rear type" connects the wire or conductor directly to the circuit breaker, for example, when the circuit breaker needs to be replaced, the replacement takes a lot of man-hours . [0003] Therefore, the "plug-in type" in which the electri...

Claims

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Application Information

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IPC IPC(8): H01R9/22H01H73/20H01R4/48
Inventor 丹羽伸次郎川上兼弘
Owner MITSUBISHI ELECTRIC CORP
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