JPH03678Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a terminal board for equipment such as an air conditioner.

BACKGROUND TECHNOLOGY Conventionally, air conditioners equipped with electronically controlled electrical components have a signal between the indoor unit and the outdoor unit.
Terminal board devices for wiring connections are used for power supply and the like. To explain this terminal board device based on FIGS. 4 and 5, a terminal board 4 for wiring connection is attached to a printed circuit board 1 on which electronic parts such as a capacitor 2 and a transistor 3 are provided. , this terminal board 4 has a base part 6
A groove part 5 is provided at the lower part of the holder, and a partition part 7 is provided at the upper part. A conductive plate 8 is provided in the recess formed between the partitions 7 above the platform 6, and the core wire 12 of the covered electric wire 11 is inserted between the flat surface 9 of the conductive plate 8 and the washer 10. Fix with screws 13. Then, the legs 14 of the conductive plate 8 are passed through the back side of the printed circuit board 1, and copper foil (not shown) for wiring is attached and soldered 15.
It was designed to be electrically conductive.

Problems to be Solved by the Invention In such a conventional configuration, when a worker doing wiring work strips out the core wire 12 of the electric wire 11, the core wire 12 is exposed too long as shown by the dotted line in FIG. In such a case, the core wire 12 may protrude from the terminal board 4 and come into contact with electronic components such as the capacitor 2 or transistor 3, and this contact may cause an electric shock, causing damage to the electronic components or risk of electric shock. There was a problem.

The present invention takes these conventional problems into consideration and aims to prevent parts of printed circuit boards from being destroyed.

Means for Solving the Problem In order to solve this problem, the present invention forms a downwardly bent leg piece in the center of the flat part of the conductive plate provided on the base part of the terminal board. It has a shape with core wire contact pieces located on both sides of this foot piece and bent upward.

Effect With this configuration, the core wire of the electric wire is inserted between the flat part of the conductive plate and the washer, the tip of the core wire hits the contact piece, and when the core wire hits, the core wire is fixed with the screw, and the core wire is fixed with the screw. The tip does not protrude beyond the terminal board.

Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 3. In the figure, 17 is a printed circuit board on which electronic components such as a capacitor 18 and a transistor 19 are arranged. A terminal board 20 made of metal resin is provided on this printed circuit board 17. This terminal board 20 has a concave groove part 21 in the center of the lower part of the base part 22, and has a partition plate 23 in the upper part to prevent the wires from touching each other when a plurality of wires are arranged. The conductive plate 24 disposed on the upper part of the base part 22 has a flat part 25, a leg piece 26 whose central part is bent downward, and parts on both sides of the leg piece 26 which are bent upward. hit piece 2
7, 28. The flat part 25 has a threaded part 29 that engages with the fixing screw 30, and the lower end of this threaded part 29 is fitted into the hole 31 of the base part 22 and then expanded outward and caulked. . A fixing screw 30 is screwed into this threaded portion 29 via a washer 32, and a core wire 34 of an electric wire for power supply or the like is tightened between the washer 32 and the flat portion 25. The tip of the core wire 34 is fixed in contact with the contact piece 27. Note that the leg pieces 26 penetrate through the back side of the printed circuit board 17 and are connected to copper foil for wiring (not shown) with solder 35.

In the above configuration, when connecting the electric wire 33 for power supply or for signals between the indoor unit and the outdoor unit to the terminal board 20, the core wire 34 is made by peeling off the covering material such as insulating vinyl from the tip of the electric wire 33. ,
This core wire 34 is connected to the flat part 25 of the conductive plate 24 and the washer 3.
Insert between 2 and 2. When inserted, the tip of the core wire 34 hits the abutment piece 27, and the core wire 34 is not inserted any further, and the fixing screw 30 is tightened when it abuts the abutment piece 27. In this case, the core wire 34 is inserted to the left of the fixing screw 30 as shown in FIG. 3, but if inserted to the right, the core wire 34 will hit the contact piece 28 and will not be inserted any further.

As a result, at the rear of the fixing screw 30 there is a leg piece 26 bent downward, and the core wire 34 is attached to the bent piece 27.
It is conceivable that the core wire 34 may protrude from between the bent pieces 27 and 28, but this is only when the tip of the core wire 34 is inserted with a large bend.In normal cases, the bent pieces 27,
28 and will not protrude and will not come into contact with electronic components such as the capacitor 18.

Effects of the Invention As is clear from the description of the above embodiments, in the present invention, the tip of the core wire is provided with a contact piece on the flat surface of the conductive plate, so that the core wire does not protrude from the terminal board.
The core wires do not come into contact with electronic components such as capacitors and transistors, so there is no chance of damage to the printed circuit board due to shorts. Also,
This has the effect of eliminating the possibility of electric shock due to leakage caused by the core wire touching the ground circuit.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a terminal board device according to an embodiment of the present invention, FIG. 2 is a perspective view of a conductive plate of the terminal board device, FIG. 3 is a plan view of the terminal board device, and FIG. FIG. 5 is a sectional view of a conventional terminal board device and a perspective view of the conventional conductive plate. 21... Groove portion, 22... Base portion, 23... Partition plate, 24... Conductive plate, 25... Plane portion, 26...
Leg pieces, 27, 28...bent pieces.

Claims (1)

[Scope of utility model registration request] A partition plate is integrally formed on the top of the base of the terminal board,
A conductive plate is provided on the base, and the conductive plate has legs bent downward at the center of the plane part, and core wires located on both sides of the legs bent upward. The terminal board device is provided with bent pieces on both sides that serve as abutments, and a hole in the flat part of the conductive plate that is fitted into the hole in the base part and then expanded outward and swaged.