JP2794928B2 - Electric cooker - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electric cooker for cutting meat, vegetables, and the like.

2. Description of the Related Art In recent years, in order to cut a cooking material into a more suitable state for cooking, an electric cooker in which a control circuit board is mounted in a main body and the rotation of the electric motor is controlled by the control circuit board has been developed. .

The figure shows an electric cooker incorporating such a control circuit board.

In FIG. 5, reference numeral 1 denotes a main body, and an electric motor 2 is mounted on a chassis 3 inside the main body 1. The rotation of the electric motor 2 is transmitted to a rotating shaft 4 supported by the chassis 3 via a speed reduction mechanism. Is transmitted. The rotating shaft 4 protrudes from an opening 5 provided in the main body 1 and fits into a cutter 7 in a container 6 placed on the main body 1 to rotate the cutter 7 to cut the cooking material. Reference numeral 8 denotes a control circuit board which is fixed to the main body 1 and controls the rotation of the electric motor 2, and a circuit component 8a is incorporated on the control circuit board 8. The control circuit board 8 and the electric motor 2 are connected by wiring 9. Reference numeral 10 denotes a cover which is mounted by being press-fitted into the rotating shaft 4 and covers the opening 5.

In the above-described configuration, when cutting the cooking material, the control circuit board 8 controls the rotation of the electric motor 2 so that the cooking material can be cut into a state more suitable for the material, and the rotation of the electric motor 2 is reduced via the deceleration mechanism. The cutting material is transmitted to the rotating shaft 4 in which the cutter 7 is fitted to rotate the cutter 7 to cut the cooking material.

SUMMARY OF THE INVENTION However, in such a conventional electric cooker, a space for fixing the control circuit board 8 to the main body 1 separately from the chassis 3 is required. However, since the electric motor 2 and the control circuit board 8 are separated from each other, the electric motor 2 must be separately assembled into the main body 1 and connected by the wiring 9 later. Also, when trying to fix the control circuit board 8 on the chassis 3 to make the main body 1 smaller,
Problems such as water on the main body 1 and cooking material leaking from the container 6 enter the opening 5 from between the main body 1 and the cover 10 and flow into the main body 1 to cause damage to the control circuit board 8; If the distance between the circuit component 8a on the control circuit board 8 and the inner top surface of the main body 1 cannot be sufficiently increased by increasing the height of the main body 1, when the main body 1 is dropped, the chassis 3 is deformed and the circuit components are deformed. 8a has a problem that the solder is damaged due to the force applied to the circuit component 8a at the top surface.

A first object of the present invention is to solve the above-mentioned conventional problems, and it is a first object of the present invention to make it easy to assemble the main body without enlarging the main body, and to prevent water, cooking materials and the like from being applied to the control circuit board. I do. A second object is to prevent inflow of water by flowing inflow, which has entered the inside of the main body from an opening provided in the main body, smoothly along the upper surface of the chassis.

A third object is to preferentially discharge the inflow such as cooking material which has flowed into the main body to the side opposite to the control circuit board.

A fourth object is to prevent a force from being applied to circuit components on the control circuit board even when the main body is dropped.

Means for Solving the Problems A first means of the present invention for achieving the first object is a main body having an opening on an upper surface, a chassis provided inside the main body, and a chassis attached to the chassis. A motor, a rotating shaft protruding from the opening and transmitting the rotation of the motor outward, a control circuit board for controlling the rotation of the motor, and a lower surface and a side surface of the control circuit board covered and mounted on the chassis. Substrate support, wherein the opening of the main body is a cylindrical opening extending toward the chassis, and the upper surface of at least the side wall of the substrate support on the side of the cylindrical opening is higher than the lower surface of the cylindrical opening. It is located in.

A second means of the present invention for achieving the second object is to lift a substrate support from a chassis and provide a gap between the substrate support and the chassis.

A third means of the present invention for achieving the third object is to provide a notch below the cylindrical opening opposite to the substrate support.

A fourth means of the present invention for achieving the fourth object is that the space between the circuit component and the inner top surface of the main body is made larger on the control circuit board than the gap between the lower surface of the cylindrical opening and the chassis. It was done.

In the first means, even when inflow of water, cooking material, or the like intrudes into the main body from the opening provided in the main body, the upper surface of the side wall of the substrate support covering the control circuit board has the lower surface of the cylindrical opening. Because it is located above, the inflow does not cross the control circuit board over the side wall of the board support,
It flows on the chassis next to the board support along the side wall.

In the second means, the inflow into the main body flows not only beside the substrate support but also under the substrate support.

In the third means, when a high-viscosity inflow material enters, the inflow material is preferentially discharged from the notch provided on the opposite side of the control circuit board.

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

1 and 2, reference numeral 21 denotes a main body having a circular opening on the upper surface thereof.

 The opening is a cylindrical opening 22 extending downward.

Reference numeral 23 denotes a chassis provided horizontally inside the main body 21 and formed of sheet metal.

Reference numeral 24 denotes an electric motor attached to an end of the chassis 23. The rotation of the electric motor 24 is transmitted to a rotating shaft 25 supported by the chassis 23 via a reduction mechanism 26.

Reference numeral 27 denotes a container placed on the main body 21, which stores cooking ingredients, and has an opening 28 on the bottom surface thereof.

The rotation shaft 25 protrudes from the cylindrical opening 22 of the main body 21 and fits into a cutter 29 provided in the container 27 through the opening 28 of the container 27 to rotate the cutter 29 to feed the cooking material. To cut.

Reference numeral 30 denotes a control circuit board for controlling the rotation of the electric motor 24 in accordance with the cooking material.A circuit component 30a is incorporated on the control circuit board 30, and a wiring 31 is connected to the electric motor 24.
Connected by

Reference numeral 32 denotes a board support that covers the lower surface and side surfaces of the control circuit board 30 and supports the control circuit board 30, and has a box-shaped structure integrally formed of resin.

As a method of fixing the control circuit board 30, the board support 32, and the chassis 23, for example, a rib is provided on a side wall of the board support 32,
After mounting the control circuit board 30 having screw holes at four corners on the rib, four screw holes on the bottom surface of the board support 32 and four screws on the chassis 23 provided at positions corresponding to the four screw holes. It is fixed by tightening a screw through the hole.

The upper surface 33a of the side wall 33 of the substrate support 32 is provided so as to be higher than the lower surface 34 of the cylindrical opening 22 when fixedly mounted on the chassis 23 in the main body 21.

Also, the circuit component 30a on the control circuit board 30 and the main body 21
The space 36 between the inner top surface 35 and the inner surface 35 is larger than the gap 37 between the lower surface 34 of the cylindrical opening 22 and the chassis 23.

Reference numeral 38 denotes a circular cover which is press-fitted into the rotary shaft 25 and covers the opening 22 of the main body, and has a larger diameter than the opening 22.

The operation of the electric cooker configured as described above will be described below. When cutting the cooking material, first, the cooking material is put into the container 27.

After that, the control circuit board 30 controls the rotation of the electric motor 24 so that the cooking material can be cut into a more suitable state for cooking, and the rotation of the electric motor 24 is fitted with a cutter 29 at its tip via a speed reduction mechanism 26. To the rotating shaft 25 to rotate the cutter 29 to cut the cooking material.

In addition, when using the electric cooker, there is a case where water applied to the main body 21 or cooking material leaked from the container 27 flows into the cylindrical opening 22 from between the main body 21 and the cover 38. Although flowing from the cylindrical opening 22 into the main body 21, the upper surface 33 a of the side wall 33 of the substrate support 32 is provided at a position higher than the lower surface 34 of the cylindrical opening 22. It does not flow along the side wall 33 along the side wall 33 and breaks on the control circuit board 30.

Furthermore, when using the electric cooker, the main body 21 may be accidentally dropped when the main body 21 is taken out of a box or shelf, or during use. The circuit component 30a is distorted and the circuit component 30a approaches the inner wall of the main body 21.
5 is larger than the gap 37 between the lower surface 34 of the cylindrical opening portion 22 and the chassis 23, so that the circuit component 30a first comes into contact with other portions such as the inner top surface 35 of the main body 21. The lower surface 34 of the cylindrical opening 22 and the chassis 23 come into contact with each other, and the distortion of the chassis 23 is stopped.

As described above, according to the present embodiment, the main body 21 having the opening 22 on the upper surface, and the chassis provided inside the main body 21
23, a motor 24 attached to the chassis 23, a rotating shaft 25 projecting from the opening 22 and transmitting the rotation of the motor to the outside, a control circuit board 30 for controlling the rotation of the motor, The control circuit board 30 is supported by covering the lower surface and side surfaces of the circuit board 30 and the chassis 23
And a box-shaped substrate support 32 mounted on the main body 21.
The upper surface 33a of the side wall 32 of the board support 32 is positioned above the lower surface 34 of the cylindrical opening 22, and the space between the circuit component 30a on the control circuit board 30 and the inner top surface 35 of the main body 21 is formed. 36
Is larger than the gap 37 between the lower surface 34 of the cylindrical opening 22 and the chassis 23, so that even when cooking material or the like flows through the cylindrical opening 22 of the main body 21 when using the electric cooker, Since it flows beside the side wall 33 of the substrate support 32, the control circuit substrate 30 does not break down. Therefore, the control circuit board 30 can be mounted on the chassis 23,
There is no need to provide a space for mounting the control circuit board 30 separately from the chassis 23 on the 21, and the control circuit board 30 can be incorporated without increasing the size of the main body 21. Furthermore, since the control circuit board 30 is attached to the chassis 23, the electric motor 24 and the control circuit board 30 can be wired and then assembled into the main body 21, so that there is no need to route the wiring inside the main body 21 and assembly is possible. It will be easier.

Also, when the chassis 21 is distorted by accidentally dropping the main body 21 when taking out the main body 21 from a box or shelf or during use, etc., before the circuit component 30a hits the inner top surface 35 of the main body 21, Since the lower surface 34 of the opening 22 and the chassis 23 come into contact with each other and stop the twisting of the chassis 23, the circuit component 30a and the inner top surface 3
Therefore, no force is applied to the leg 30b, and the soldering portion is not broken, thereby causing no trouble such as poor conduction.

It is to be noted that, when a shaft is set in the main body and the chassis is distorted, a force received in the cylindrical opening receives a force in the entire cylinder, resulting in a stronger strength. Further, when the main body is made of a resin molded product, if a shaft is set up in the main body, the portion will be shrunk. However, the use of a cylindrical opening will improve the appearance without shrinking.

Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. The same components are denoted by the same reference numerals and description thereof is omitted.

In FIG. 3, reference numeral 39 denotes four corners on the back side of the bottom surface of the substrate support 32,
It is a cylindrical leg provided integrally with the substrate support.

In this embodiment, a gap 40 is formed between the substrate support 32 and the chassis 23, so that the liquid flowing into the main body 21 can flow not only beside the substrate support 32 but also under the substrate support 32, and thus the chassis 23 Flows smoothly under the chassis 23 without collecting on the top. It should be noted that the same effect can be obtained even if a protrusion is provided on the chassis 23 to float the substrate support 32.

Next, a third embodiment of the present invention will be described with reference to the drawings.

Like the second embodiment, the same components are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 4, reference numeral 22a denotes a cutout provided below the cylindrical opening 22 on the side opposite to the substrate support 32.

In this embodiment, for example, when a large amount of high-viscosity material flows into the main body 21, the flow is poor and the inflow material rises on the chassis 23 and tries to climb over the side wall 33 of the substrate support 32. Since the portion 22a is provided, the inflow that has entered later is preferentially discharged to the cutout portion 22a side, so that it does not reach the control circuit board 30.

Effect of the Invention As described above, in the first means of the present invention, a main body having an opening on the upper surface, a chassis provided inside the main body, a motor attached to the chassis, A rotating shaft that protrudes and transmits the rotation of the motor to the outside, a control circuit board that controls the rotation of the motor, and a board support that covers the lower surface and side surfaces of the control circuit board and is mounted on the chassis; The opening of the main body is a cylindrical opening extending toward the chassis, and the upper surface of at least the side wall of the substrate support on the side of the cylindrical opening is located above the lower surface of the cylindrical opening. Can be mounted on the chassis, and the control circuit board can be mounted on the chassis without increasing the size of the main body. Further, since the control circuit board is attached to the chassis, the electric motor and the control circuit board can be wired and then assembled into the main body, so that the wiring does not need to be routed in the main body, thereby facilitating the assembly.

In the second means, the board support is lifted from the chassis to provide a gap between the board support and the chassis,
The liquid that has flowed into the main body can flow not only beside the substrate support but also under the substrate support, and can smoothly flow under the chassis.

In the third means, a notch is provided on the side opposite to the substrate support and on the lower surface side of the cylindrical opening.
When a high-viscosity inflow comes in, the inflow can be discharged to the opposite side of the control circuit board so as not to hit the control circuit board.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an electric cooker according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of the essential part, and FIG. 3 is a sectional view of an electric cooker according to a second embodiment of the present invention. FIG. 4 is an enlarged view of a main part of an electric cooker according to a third embodiment of the present invention, and FIG. 5 is a longitudinal sectional view of a conventional electric cooker. 21 ... body, 22 ... cylindrical opening, 22a ... notch, 23
…… Chassis, 24 …… Electric motor, 25 …… Rotary axis, 30 …… Control circuit board, 30a …… Circuit parts, 32 …… Board support, 33…
... side wall, 33a ... top wall, 34 ... bottom, 35 ... top, 4
0 ... gap.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47J 43/046 B26D 3/26

Claims (4)

(57) [Claims] 1. A main body having an opening on an upper surface, a chassis provided inside the main body, a motor mounted on the chassis, and a rotation protruding from the opening and transmitting rotation of the motor to the outside. A cylinder having a shaft, a control circuit board for controlling rotation of the electric motor, and a board support that covers the lower surface and side surfaces of the control circuit board and is mounted on the chassis, and has an opening of the main body extending toward the chassis; An electric cooker in which the upper surface of at least the side wall of the substrate support on the side of the cylindrical opening is located above the lower surface of the cylindrical opening. 2. The electric cooker according to claim 1, wherein the substrate support is lifted from the chassis, and a gap is provided between the substrate support and the chassis. 3. The electric cooker according to claim 1, wherein a notch is provided below the cylindrical opening opposite to the substrate support. 4. The electric cooker according to claim 1, wherein a space between a circuit component on the control circuit board and an inner top surface of the main body is larger than a gap between a lower surface of the cylindrical opening and the chassis.