JPH1065355A - Wiring board cover structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts, improve wiring workability, and to enlarge an effective mounting area of a board. SOLUTION: A wiring board 5 is mounted with the required number of terminal brackets 8, and a wiring board cover 6, which covers a circuit part and the terminal bracket 8 for integration, is attached to the wiring board 5, and a terminal cover part 6b, which exposes the terminal bracket 8, is formed at the wiring board cover 6. An external cable can be connected to the terminal bracket 8 with the wiring board cover 6 attached to a control board, and an internal wiring between the terminal bracket 8 and the circuit of the wiring board 5 can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cover structure for a wiring board such as a control board on which a control circuit is formed, and more particularly to a cover structure for a wiring board having a terminal board provided on the board.

[0002]

2. Description of the Related Art A control board is provided with a terminal board for connecting various cables such as a power cable or a control cable to a control target such as a motor.

Conventionally, as shown in FIG. 8, a terminal board 2 is attached by screws to a control board 1 on which a control circuit (not shown) is formed, and terminals 3 of the terminal board 2 and the control board 1 are connected to each other. The control circuit is connected to the control circuit by an internal wiring cable (not shown), and an external connection cable (not shown) from the outside is jointly fastened to the terminal 3 so that the control circuit and the power supply or the object to be controlled are connected. A connection was made. In the figure, reference numeral 4 denotes a terminal board cover.

The entire control board 1 is covered with a wiring board cover (not shown).

[0005]

In the above conventional example,
Since the terminal board 2 is required for the connection between the control board 1 and the external connection cable, a separate terminal board is required in addition to the wiring board cover, and the number of parts increases accordingly. In addition, the internal wiring between the control circuit and the terminal board 2 is required, the operation is complicated, and a long operation time is required. Furthermore, since the terminal board 2 is mounted on the control board 1, pattern formation and component mounting must be performed avoiding the terminal board 2, so that the mounting area of the board is reduced.

The present invention has been made in view of the above circumstances, and has as its object to reduce the number of components in a cover structure of a wiring board, improve wiring workability, and further increase the effective mounting area of the board.

[0007]

According to the present invention, a required number of terminal fittings are mounted on a wiring board, and a wiring board cover for integrally covering a circuit portion and the terminal fittings is attached to the wiring board, and the wiring board cover is mounted on the wiring board cover. The present invention relates to a wiring board cover structure having a terminal cover for exposing the terminal fitting, wherein the terminal cover has a terminal exposure window for exposing the terminal fitting, and the terminal fitting is exposed from the terminal exposure window. The present invention relates to a wiring board cover structure in which a partition wall for partitioning the wiring board cover is integrally formed with the wiring board cover. The present invention relates to a wiring board cover structure in which the formed insulating plate is attached from the back side of the wiring board, wherein the terminal cover has a viewing window for internal confirmation, and a cover plate for closing the viewing window is provided in front. The present invention relates to a wiring board cover structure for covering terminal fittings, wherein the terminal cover has a viewing window for internal confirmation, and a cover plate for closing the viewing window covers the terminal fittings and the terminal is provided on the back surface of the cover plate. The present invention relates to a wiring board cover structure having a partition wall inserted between metal fittings.

The wiring board cover integrally covers a circuit portion of the wiring board and the terminal fittings, and the terminal fittings are exposed to the outside. When the wiring board cover is mounted on the control board, an external cable is connected to the terminal fittings. Connection is possible,
Internal wiring between the terminal fitting and the circuit on the wiring board can be omitted. In addition, the partition wall insulates the terminal fittings, and the operation check lamp and the state of various switches can be checked from the viewing window.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 5, reference numeral 5 denotes a control board, 6 denotes a wiring board cover that covers the entire control board 5, and the wiring board cover 6 has a detachable cover plate 7.

Hereinafter, each of the control board 5, the wiring board cover 6, and the cover plate 7 will be described.

Although not shown, the control board 5 is formed with a predetermined pitch corresponding to the number of terminals on which wiring patterns for terminal connection are mounted. The wiring pattern and the terminal fitting 8 are electrically connected by soldering. Thus, each of the terminal fittings 8 is connected to a control circuit (not shown) via a wiring pattern, and it is not necessary to separately perform internal wiring between the terminal fitting 8 and the control circuit.

The wiring board cover 6 has a circuit cover portion 6a having a height that covers a control circuit and a terminal cover portion 6b having a height that allows wiring work to the terminal fittings 8. Further, an apron 9 is formed on the terminal cover 6b along the edge of the cover, and a terminal exposure window 10 is formed in the apron 9 on the side of the circuit cover 6a. ing. The terminal exposure window 10
Are separated by a partition wall 11 formed so as to be equal to the mounting pitch of the terminal fittings 8 and to be located between the terminal fittings 8 and the terminal fittings 8. A viewing window 12 is formed along the upper surface of the terminal cover 6 b and the terminal exposure window 10, and the viewing window 12 is closed by the cover plate 7.

The cover plate 7 is formed of a flexible material such as a synthetic resin, and has a hook 13 projecting from the lower surface thereof. The hook 13 can be engaged with a frame edge of the viewing window 12. The cover plate 7 can be attached to and detached from the terminal cover 6b via the hook 13 with one touch. Further, the cover plate 7 has a shape that closes the viewing window 12 and protrudes to the apron portion 9 to cover at least the terminal exposure window 10.

In FIG. 1, reference numeral 14 denotes a sound hole for a speaker provided on the control board 5, and 15 denotes a screw hole for fixing the wiring board cover 6 to the control board 5. Another one
Reference numeral 6 denotes a screw hole for fixing the control board 5 to a wall surface of a structure or the like.

When connecting a cable (not shown) to the control board 5 and attaching the wiring board cover 6, the wiring board cover 6 is fixed to the control board 5 with the cover plate 7 removed. In this state, the terminal fittings 8 are exposed from the terminal exposure window 10, and each terminal fitting 8 is separated by the partition wall 11 (see FIG. 2).

A cable is connected to the terminal fitting 8. For connection of the cable, a cable terminal is screwed by a screw 17 attached to the terminal fitting 8. Each cable terminal is partitioned by the partition wall 11 and is reliably insulated. The workability is good because the screwing of the cable terminals is not co-fastened with the internal wiring cable. The performance is further improved.

As shown in FIG. 5, a control mode setting switch 18 and an operation confirming lamp 19 are mounted on a portion of the control board 5 corresponding to the viewing window 12, and after a cable is connected. The operation can be checked through the viewing window 12.

After the connection of the cables and the confirmation of the operation are completed, the cover plate 7 is attached to the viewing window 12. Since the cover plate 7 also covers the terminal fitting 8, external contact with the terminal fitting 8 is prevented.

As shown in FIG. 6, the partition wall 11 can be formed not on the wiring board cover 6 but on the cover plate 7. That is, the partition wall 11 is integrally formed in a comb-tooth shape on a portion of the back surface of the cover plate 7 protruding toward the terminal fitting 8. Therefore, the cover plate 7
Is attached to the viewing window 12 so that the partition wall 11 is inserted between the terminal fittings 8 and insulation between the terminal fittings 8 is achieved.

Further, although not particularly shown, the partition wall 11 is provided between the terminal fittings 8 of the control board 5.
7 is provided with a slit hole through which the partition wall 11 can be inserted.
Is formed in a comb shape on the insulating plate 20 shown in FIG. The insulating plate 2
By attaching the “0” to the back surface of the control board 5 so that the partition wall 11 protrudes from the slit hole, the terminal fittings 8 are partitioned to provide insulation.

In the above embodiment, the partition wall 1
Although 1 is used for terminal insulation, it can also be used as a light shielding wall for preventing light leakage of a plurality of lamps.
Needless to say, the target wiring board is not limited to the control board.

[0023]

As described above, according to the present invention, there is no need to separately mount a terminal board, no internal wiring is required between the terminal board and the wiring board, and the workability is improved, and the component mounting area of the wiring board is improved. Increase. Furthermore, since the terminals are mounted on the wiring board in advance, there is no need to prepare a terminal board, and the number of parts is reduced, and excellent effects such as easy handling and improved parts management are exhibited.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing the embodiment of the present invention, with the cover plate removed.

FIG. 3 is a plan view showing the embodiment of the present invention.

FIG. 4 is a front view showing the embodiment of the present invention.

FIG. 5 is a plan view showing the embodiment of the present invention, with the cover plate removed.

FIG. 6 is a perspective view showing another embodiment of the present invention.

FIG. 7 is a perspective view showing still another embodiment of the present invention.

FIG. 8 is a perspective view showing a conventional example.

[Explanation of symbols]

 Reference Signs List 5 control board 6 wiring board cover 7 cover plate 8 terminal fitting 9 apron section 10 terminal exposure window 11 partition wall 12 viewing window 20 insulating plate

Claims (5)

[Claims] 1. A required number of terminal fittings are mounted on a wiring board,
A wiring board cover structure, wherein a wiring board cover that integrally covers a circuit portion and the terminal fittings is attached to the wiring board, and a terminal cover section that exposes the terminal fittings is formed on the wiring board cover. 2. The wiring board cover according to claim 2, wherein the terminal cover has a terminal exposure window for exposing the terminal fitting, and a partition wall for partitioning the terminal fitting exposed from the terminal exposure window is formed integrally with the wiring board cover. 1. Wiring board cover structure. 3. A wiring board, wherein a slit hole is formed between the terminal fitting and the terminal fitting, and an insulating plate having a partition wall inserted through the slit hole is attached from the back surface of the wiring board. Wiring board cover structure. 4. The wiring board cover structure according to claim 1, wherein said terminal cover portion has a viewing window for internal confirmation, and a cover plate closing said viewing window covers said terminal fitting. 5. The terminal cover portion has a viewing window for internal confirmation, and a cover plate closing the viewing window covers the terminal fitting and a partition wall inserted between the terminal fittings on the back surface of the cover plate. The wiring board cover structure according to claim 1 formed.