JPH0275823A - Heat-cooker - Google Patents

Abstract

PURPOSE:To make it possible to service a unit as to the electric equipment, or the like on a control panel and behind it without demounting the main body by attaching the control panel to the chassis of the main body by means of screws from the front and by fitting a front panel having air holes over the assembly. CONSTITUTION:To the front of a control panel 9 are attached, for example, a key board 10, display device 11, and door button 13. To its backside is attached by means of a fixing device 18 a printed circuit board 17 in which are incorporated a display device, microcomputer 14, low-tension transformer 15, relay 16, and the like. The upper border of the control panel 9 and the fixing device 18 are fixed to the chassis 20 of the main body by means of tapping screws 19 from the front and the lower border of the panel is formed into a catch 9A which locks into the chassis. After fixing the control panel 9, front louvers 8 are attached by means of screws 22 which are fitted into holes 23A in the main body casing 23 at the left and the right. The unit can be serviced by removing the screws 22 for the front louvers 8, those 19 for the control panel 9, and finally the control panel 9.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the structure of mounting an operation panel of a cooking device.

2. Description of the Related Art An operation panel for controlling the heating time and heating output of a conventional heating cooker is fixed from the inside of the main body chassis with screws. Therefore, in the event of a problem such as a malfunction of an electrical component, it was first necessary to remove the outer shell of the main body.

Even in wall-hanging type heating cookers, the operation panel is similarly screwed from the inside of the main body.

The problem to be solved by the invention is that such heating cookers, especially those that are hung on a wall, are generally installed in a recess in a hanging cabinet located above a gas stapler, so if they are not used as they are, the outer shell cannot be removed. Because it could not be removed, the main unit had to be lowered from the wall when servicing. Moreover, after the service was completed, the outer shell had to be reattached and hoisted back to its original position, which required two service personnel to handle the heavy product. In addition, since gas staples are already installed, there is a risk of them falling when handling the main unit and damaging or breaking the table top, which poses work safety issues. There was an issue.

The present invention solves these conventional problems,
The purpose is to improve the serviceability of a heating cooker that is hung on the wall and to ensure safety during service.

Means for Solving the Problems In order to achieve the above objects, the heating cooker of the present invention has an operation panel fixed to the main body chassis from the front with screws, and a front panel with ventilation holes formed in front of the screw fixing part. It is covered with a panel.

Function: Since the heating cooker of the present invention allows the operation panel to be removed while the main body is attached to the wall, it is possible to service the machine room housing the operation panel and electrical components behind it. Since there is no need to remove the main body, serviceability is greatly improved, and safety during service is ensured.

EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings using a high frequency cooking device as an example.

As shown in FIG. 2, the cooking device main body 1 is located above a gas or electric table 2 in the kitchen, and is built into a recess formed by a hanging cabinet 4 installed on a wall surface 3.
and is fixed to the upper hanging cabinet 4 with metal fittings or screws. Generally, a ventilation fan is built into the main body of a heating cooker installed in such a position, and the ventilation fan is installed at the intake hole 5 at the bottom of the main unit.
When cooking on a table 2 or in a stationary oven 6
The structure is such that the steam and smoke generated when the cooker is used is inhaled and discharged outdoors through the exhaust hole on the back or top of the cooker body, either directly or through a duct. This intake hole 5
A mesh-like grease filter is removably built into the unit to remove oil. On the other hand, a front panel 8 in the form of a louver (hereinafter referred to as front louver 8) is attached to the upper front of the main body, and in the case of the embodiment, it cools the high frequency generator and power supply device on the back of the operation panel 9. A part of the cooling air is sucked into the machine room housing the cooling device through the intake hole 8A, and a part of the cooling air is discharged from the exhaust hole 8B, and the - part is sent to the heating chamber 11. This air is sent to the heating chamber IA. It is discharged to the outside from the exhaust hole 8C together with the steam generated from the food inside.

On the other hand, on the front of the operation panel 9, there is a keyboard 10 for setting heating output and heating time, and a display device 11 for displaying the output and time.
Further, a door opening button 13 is incorporated in the front surface of the heating chamber IA to open a door 12 which is freely openable and closable.

Furthermore, on the back of the operation panel 9 there is a display device and a microcomputer 14.
, a low-voltage transformer 15 , a relay 16 , etc., are mounted on a printed circuit board 17 that is fixed via a mounting bracket 18 . Attach the upper end of the operation panel 9 and the mounting bracket 18 from the front with the tapping screws 1.
9 is fixed to the chassis 20 on the main body side, and a locking piece 9A at the lower end engages with the chassis. At this time, mounting bracket 1
The diameter of fixing hole 8 is smaller than the screw diameter, so screw 1
When tightening the mounting bracket 9, this hole is also tapped and tightened at the same time, so that the mounting bracket 18 can be reliably electrically connected to the main body chassis 20. In the embodiment, an M4 tapping screw is used as a long hole with a hole diameter of 3.2×4. Printed circuit board 1
By tightening the ground pattern part 7 to the mounting bracket 18 with the screw 21, the ground pattern is grounded to the chassis 20, which is very effective as a noise countermeasure. It is particularly effective for types in which the heating chamber and its opening surfaces are painted.

On the other hand, the front louver 8 is tightened into the hole 23A of the main body outer shell 23 by the left and right screws 22 after the operation panel 9 is fixed. Therefore, during actual service, it is not necessary to remove the main body from the wall and remove the outer shell, and the operation panel 9 can be removed by removing the screws 22 of the front louver 8 and then removing the screws 19 of the operation panel 9. .

Effects of the Invention As described above, the heating cooker of the present invention provides the following effects.

(1) When checking for troubles with parts built into the operation panel, especially electronic circuits including microcomputers and ICs on printed circuit boards, or high-frequency generators and their power supplies, the main unit can be left attached without removing it from the wall. Servicing can now be performed in the same condition, eliminating the need for the troublesome work of lowering the main unit installed above the gas staple, etc., and then reinstalling the main unit on the wall after the service is completed, significantly reducing the time required for servicing. It can be reduced. In addition, the weight of the main unit is considerably heavier than the general tabletop type, which eliminates the difficulty of working and greatly improves serviceability.

(2) By tightening the screws on the operation panel, the ground of the printed circuit board that makes up the electronic circuit can be reliably grounded to the chassis, even if the chassis has a surface treatment, so it can prevent static electricity and power supply noise. It is also possible to ensure sufficient resistance against malfunctions due to

(3) In the above-mentioned embodiment, the effect was explained for a type of heating cooker that is hung on a wall, but the present invention can also provide similar effects for a type of cooking device that is installed such as a floor-standing type or a wall-embedded type. That is clear.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the mounting structure of the operation panel of a heating cooker according to an embodiment of the present invention, Fig. 2 is an external view showing the same heating cooker installed in the kitchen, and Fig. 3 is the same. FIG. 4 is an external view of the main body of the heating cooker, with the front louver removed. 8... Front louver, 9... Old operation panel, 10... Keyboard, 17... Printed circuit board, 18... Mounting bracket, 19... ...
・Operation panel mounting screw, 2o・old・main body chassis-1
21... Printed circuit board mounting screw, 23...
···shell. Name of agent: Patent attorney Shigetaka Awano (1 person) 8-70 Sotruba Figure 2

Claims (1)

[Claims] A heating chamber for storing food, a heating means for cooking the food, an operation panel for setting heating time, heating output, etc., a cooling device for cooling the heating means etc. housed in the main body, and the cooling device. and a front panel formed with a hole for ventilation of outside air, and the operation panel is attached to the chassis by fixing one end thereof to the main body chassis from the front with screws and engaging another locking piece provided with the chassis. . A heating cooker, wherein the front panel is arranged to cover a front surface of a screw fixing part of the operation panel.