JPH0547511Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for attaching an electric circuit board to a housing housing an electric device such as an electric motor.

[Conventional technology]

As shown in Japanese Utility Model Application Publication No. 54-131376, a wind fan is provided with an electric motor and a fan inside a housing, and the fan is driven by the electric motor to suck air into the housing and discharge it again outside the housing. Alternatively, a ventilation frame device is known in which an electric motor and a fan are provided inside a hollow frame body, and the fan is rotated by the electric motor to circulate air between an indoor side and an outdoor side.

[The problem that the idea aims to solve]

When an electrical device is built into a housing, such as a wind fan or a ventilation frame device, an electric circuit board for controlling the electrical device may be attached to the housing.

For example, an electric circuit board is screwed to the casing, or a cover body is provided on the casing so that it can be opened and closed, and the electric circuit board is screwed to the inside of the casing.

However, with this type of installation, it is very troublesome to install and remove the electric circuit board.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an electric circuit board mounting device that can solve the above-mentioned problems.

[Means and actions for solving the problem]

Attach an upper mounting bracket with a horizontal piece and a lower mounting bracket with a horizontal piece to the inner surface of the cover body, facing each other.
This is a mounting device in which the upper and lower parts of the electrical circuit board are held between the opposing horizontal pieces, and the electric circuit board can be easily mounted and removed by pushing or pulling out between the opposing horizontal pieces.

〔Example〕

As shown in FIG. 5, a cover body 2 is connected to the lower part of the open end of the casing 1, which is open on one side, so as to be rotatable in the vertical direction, so that the opening 1a of the casing 1 can be opened and closed by the cover body 2. An electric motor 3 and a fan 4 are built into the housing 1, and a ventilation hole (not shown) is formed in the cover body 2, and an exhaust hole (not shown) is formed in the housing 1. It consists of

An electric circuit board 5 is attached to the inner surface of the cover body 2 at a position closer to one side in the left-right direction, and a plurality of electric machine controllers 6 and electric wiring 7 are connected to the electric circuit board 5. When the cover body 2 is closed, They are designed to face a space 8 between the side wall 1b of the housing 1 and the electric motor 3 when the electric motor 3 is opened.

Next, the installation of the electric circuit board will be explained with reference to FIGS. 1 to 4.

As shown in FIG. 1, a downward hook piece 10 and an upward hook piece 11 are formed on the upper and lower inner surfaces of the cover body 2 in the longitudinal direction to form a downward groove 12 and an upward groove 13. , and the hanging piece part of the downward hook piece 10 becomes the mounting piece 14, the upper mounting bracket 15 is fitted to the mounting piece 14 and installed, and the lower mounting bracket 16 is fitted to the upward concave groove 13 to be installed. There is.

As shown in FIG. 3, the upper mounting bracket 15 includes an upwardly U-shaped main body 17 and a vertical plate 17 on one side of the main body 17.
It consists of a transverse piece 18 having elasticity formed integrally with the upper end of a, the main body 17 of which is fitted and attached to the mounting piece 14 from bottom to top, and the transverse piece 18 protrudes inward from the housing 1. .

As shown in FIG. 4, the lower mounting bracket 16 includes an upwardly U-shaped main body 19 and a vertical plate 19a on one side of the main body 19.
A horizontal piece 20 having elasticity is integrally formed at the upper end, and a part of the horizontal piece 20 is cut and raised to become a receiving piece 21 that protrudes upward. The transverse pieces 20 are fitted and attached toward the housing 1, and the horizontal pieces 20 protrude inward from the housing 1.

Then, the upper part of the electric circuit board 5 is attached to the upper mounting bracket 1.
The electric circuit board 5 is attached to the horizontal piece 18 of the lower mounting bracket 16 by pushing it into the horizontal piece 18 of the lower mounting bracket 16 so that its lower part engages with the horizontal piece 20 of the lower mounting bracket 16.

As a result, the horizontal piece 18 of the upper mounting bracket 15 receives an upward force, so that the main body 17 is not pushed in the direction of fitting into the mounting piece 14 and comes off, and the horizontal piece 20 of the lower mounting bracket 16 is forced downward. Since the main body 19 receives the force, the main body 19 is not pushed in the direction of fitting into the upward groove 13 and does not come off.

In the embodiment, the upper mounting material 22 is attached to the upper edge of the electric circuit board 5, and the lower mounting material 2 is attached to the lower edge.
3 is installed, and the upper mounting material 22 is attached to the upper mounting bracket 15.
The lower mounting member 23 engages with the horizontal piece 20 of the lower mounting bracket 16 and comes into contact with the receiving piece 21.

Further, as shown in FIG. 6, a waterproof cover 24 of the electric circuit board 5 is attached to prevent rainwater from touching the electric circuit board 5 even if rainwater etc. enters into the housing 1. An adjustment knob 25 for adjusting the rotation speed may be attached so that the adjustment knob 25 can be easily operated when the cover body 2 is opened and placed in a substantially horizontal position.

[Effect of idea]

If the cover body 2 is rotated downward to take a substantially horizontal position, the electric circuit board 5 will face upward, and moreover, the upper and lower parts of the electric circuit board 5 are only held between the horizontal piece 18 and the horizontal piece 20. It can be removed by holding the electric circuit board 5 in your hand and pulling it upward, and it can be attached by pushing it downward from above.

Therefore, the electric circuit board 5 can be easily attached to and removed from the housing 1.

In addition, since the electric circuit board 5 is attached to the inner surface of the cover body 2, the cover body 2 can be rotated upward to remove the housing 1.
By closing the opening, the electric circuit board 5 can be hidden from view from the outside, resulting in a good appearance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of the electric circuit board mounting part, Fig. 2 is a left side view thereof, Fig. 3 is a perspective view of the upper mounting bracket, and Fig. 4 is the lower mounting part. A perspective view of the metal fittings, Figure 5 is a perspective view of the ventilation frame, Figure 6
The figure is a longitudinal sectional view of a modified example. 1 is a housing, 2 is a cover body, 5 is an electric circuit board,
15 is an upper mounting bracket, 16 is a lower mounting bracket, 18 is a horizontal piece, and 20 is a horizontal piece.

Claims (1)

[Scope of utility model registration request] A housing 1 connects a cover body 2 so as to be vertically movable, and an upper mounting bracket 15 with a horizontal piece 18 and a lower mounting bracket 16 with a horizontal piece 20 are attached to the inner surface of the cover body 2, respectively. The horizontal pieces 18 and 20 face each other,
An electric circuit board characterized in that the upper and lower parts of the electric circuit board 5 are sandwiched between the horizontal piece 18 of the upper mounting bracket 15 and the horizontal piece 20 of the lower mounting bracket 16, which are respectively mounted toward the inside of the housing 1. mounting device.