JPS6240137Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a well-balanced pump structure that is easy to assemble and manufacture.

When a motor is equipped with a control section such as a pump section and a switch, the control section is generally fixed to the outer periphery of the motor, since if it is attached directly to the pump section, dew droplets may form due to pumping water, which is inconvenient. Ta.

Since the electric motor weighs the most in such a configuration, the electric motor is provided with legs for attachment.

However, if the mounting legs form the mounting part for a control unit such as a switch on the outer periphery of the electric motor,
A large number of mounting screw holes, etc. must be formed on the frame of the electric motor.

Furthermore, when the frame of the electric motor is made of resin, it is necessary to fill the screws with metal, which is troublesome to process and increases the manufacturing cost.

In particular, when precision, complicated, and large-volume elements are provided, such as when a printed circuit board is used in the control section, the number of screw holes for reinforcement and mounting increases, making manufacturing inconvenient.

The present invention was developed in view of the above circumstances, and aims to improve the convenience of assembly and production of a pump having a control section with a large number of parts, and to provide a pump with a well-balanced structure. .

Hereinafter, the present invention will be explained based on one embodiment shown in the drawings. Fig. 1 is a side view showing one embodiment of the present invention, and Fig. 2 is a longitudinal cross-sectional view of the main part. FIG. 3 is a rear view thereof.

In FIG. 1, in the pump, a pump section 2 is provided on one side of an electric motor 1, and one side 4 of an L-shaped steel plate 3 on the other side is fixed.

A leg portion 6 is formed on the lower side of the electric motor 1 so that the other side 5 of the steel plate 3 extends approximately to the center of the weight.

Furthermore, a control section 7 is provided on one side 4 of the steel plate 3 on the opposite side to which the electric motor 1 is attached.

In FIG. 2, a through hole 8 is provided in the electric motor 1 in the axial direction, and a bolt 9 passing through the through hole 8 is used to assemble the steel plate 3 and the pump part 2 into the electric motor 1 as one body.

An electronic component 10 is placed on one side 4 of the steel plate 3.
A printed circuit board 11 having a large number of circuit boards is attached, and is further covered with a cover 12.

In FIG. 3, the cover 12 has a rectangular shape and is fixed on the outside with bolts 9. As shown in FIG.

In such a configuration, the pump has the steel plate 3 formed in an L shape, and the leg portions 6 can be configured at positions with good weight balance.

Furthermore, the control section 7 is provided on the side 4 of the steel plate 3 on a side different from the mounting side of the pump section 2, where there is no risk of dew droplets, without forming a large number of mounting screw holes in the electric motor 1. I can do it.

In particular, if the electric motor 1 is provided with a through hole 8 through which one bolt 9 passes, as in this embodiment, the whole can be easily integrated.

Moreover, even when the electric motor 1 is made of resin,
Since the pump section 2 and the control section 7 can be easily attached through the through hole 8, processing is extremely convenient.

By using one side 4 of the steel plate 3, a large number of screw holes for attaching parts can be formed very easily since it is a flat surface, which is convenient in terms of assembly and production.

Furthermore, if the control unit 7 is configured to have a rectangular shape, the printed circuit board 11 can be made into a rectangular shape and the inside of the cover 12 can be effectively utilized, and the electronic components 10 can be arranged and the printed circuit board 11 can be effectively used.
This has the effect of providing sufficient mounting strength.

Since the other side 5 of the L-shaped steel plate 3 is used as the leg 6, the heat dissipation characteristics are good, and since the one side 4 is attached to the side opposite to the pump part 2 of the electric motor 1, the heat dissipation characteristics are good. It is convenient because it is not affected by dew droplets during water use and does not deteriorate the environment of electrical parts such as electronic parts.

Moreover, heat from the electric motor 1 is cut off to some extent by the heat dissipation by the legs 6, and heating of the printed circuit board 11 can be prevented to some extent, making it possible to make the control section 7, which is sensitive to high temperature and high humidity, very well protected.

As explained above, according to the present invention, the pump part is provided on one side of the electric motor, and the L-shaped steel plate is provided on the other side to provide the control part, so it is preferable to use a control part other than the other because it is convenient for manufacturing. It has a good balance and its practical value is extremely great.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the main part thereof, and FIG. 3 is a rear view thereof. 1... Electric motor, 2... Pump section, 3... Steel plate,
7...Control unit.

Claims (1)

[Scope of utility model registration request] A pump characterized in that a pump part is provided on one side of the electric motor, one side of an L-shaped steel plate is fixed to the other side, the other side of the steel plate is used as a leg part, and a control part is attached to one side. .