JP2906912B2 - Stove operation panel structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel mounting structure for operating an oil fan heater or the like accompanied by electric operation.

[0002]

2. Description of the Related Art In a petroleum fan heater using an AC power source for home use, an operation panel for instructing a control device for operating the stove is mounted on a top plate or a front panel of the stove. The operation surface of the panel has switches, lamps, and an operation method display section. In general, the control device is operated by operating each switch to change the amount of fuel or air or to control the rotation of the hot air fan.

A control device for operation is constituted by a semiconductor circuit including a microcomputer, and an operation panel having switches and a display unit is arranged on an upper portion of a front panel of the stove or on a top plate of the stove. When the operation panel is mounted on the top plate of the stove, a recess A is formed in the top plate, and the operation panel is housed in the recess A. The top plate and the operation panel are integrated. Also, when the operation panel is mounted on the upper part of the front panel, the front panel and the operation panel are integrated.

Further, when the operation panel is mounted on the top plate of the stove, the operation panel that is set up toward the top plate from the board of the control device mounted inside the stove is exposed to the outside through an opening provided in the top plate. There is also a structure.

[0005]

By the way, when the operation panel is mounted on the front panel, a wiring cord is required between the operation panel and the board of the control device on the side of the stove body, and the front panel is required for maintenance such as a combustion test. When the fuel is to be burned in a state where the fuel cell is removed, the operation panel must be removed from the front panel, and the wiring cord must be lengthened so that the combustion can be performed without removing the operation panel from the front panel. However, increasing the length of the wiring cord makes it easier to pick up noise that may cause the microcomputer to malfunction, and requires a space for accommodating the wiring cord when the front panel is mounted.

On the other hand, the structure in which the operation panel is arranged on the top plate of the stove has a feature that the front panel can be removed and burned even if the wiring cord is shortened, but the position of the operation panel is limited due to manufacturing problems. It is a mess.

That is, it is preferable to arrange the operation panel mounted on the top panel at the front portion as close as possible to the front panel because it is easy to operate the operation panel. However, openings and recesses necessary for disposing the operation panel on the top plate of the stove are preferred. In order to have a certain dimension between the top edge and the top edge of the top plate, a complicated process is required to reduce this size, and it is very difficult to completely eliminate wrinkles during the process. Met.

For example, as shown in FIG. 6, a recess A is formed near the front edge of the top plate of the stove by deep drawing sufficient to accommodate the operation panel. The operation panel is placed in the recess A, and is arranged side by side with the operation panel. When the front edge of the top plate and the upper retaining piece of the front panel are hooked at the end of the concave portion A, the number of processing steps is larger than when deep drawing is performed at the center of the top plate of the stove. There are problems such as that, wrinkles due to drawing are conspicuous, and drawing is difficult with a hard material such as a printed steel plate.

For this reason, when the operation panel is mounted on the top plate, it is necessary that a top plate having a certain size remains between the operation panel and the front edge of the top plate, and the operation panel is brought close to the center of the top plate. Had to be placed. Therefore, in order to dispose the operation panel near the front edge of the top plate, it has to be limited to a top plate structure that covers both the frame formed by the side plate and the back plate and the upper portion of the front panel. .

[0010]

In order to solve the above-mentioned problems, the present invention mounts a top plate 2 on an upper portion of a frame 1 composed of a back plate and a side plate, and connects the top plate 2 to the surface of the frame 1 and the surface of the top plate 2. In a stove in which a front panel 6 whose periphery is gently curved so as to be placed at the front of the frame 1 and the top plate 2 and the operation panel 3 is positioned at a curved portion of the front panel 6 toward the top plate 2, The front edge of the top plate 2 is provided with a protrusion 4 continuous with a surface of the top plate 2 through a step so as to protrude downward from the curved portion of the front panel 6. A fixing opening 5 for fixing the operation panel 3 is formed, an engaging guide portion 3a adjacent to the operation surface of the operation panel 3 is provided with a gap therebetween, and a curved portion of the front panel 6 facing the top plate 2. Of the operation panel 3 also faces the side of the operation surface, and At the front edge of the curved portion of the front panel 6 opposing the operation surface of the panel 3 and the top plate 2, an upper locking piece 6a bent downward is formed. 3a and the operation surface of the operation panel 3 so that the operation surface of the operation panel 3 and the surface of the curved portion of the front panel 6 are continuous on the same plane.

[0011]

The front panel 6 extends from the front edge of the exposed surface of the top plate 2.
A projection 4 is formed toward the lower part of the upper curved portion of the top plate 2, and the projection 4 forms a step with respect to the upper surface of the top plate 2. Abnormal deformation and wrinkles caused by the deformation were eliminated. Further, since the fixed opening 5 for mounting the operation panel 3 is formed in the protruding portion 4, even if wrinkles occur near the fixed opening 5 of the protruding portion 4 during the press working, the operation panel 3 and the front panel 6 are formed. Is covered by the curved portion.

The operation panel 3 is provided with an engagement guide portion 3a adjacent to the operation surface with a gap therebetween, and the front edge of the curved portion of the front panel 6 facing the top plate 2 is moved to the operation panel 3
Since the upper engaging piece 6a and the engaging guide 3a are engaged with each other, the upper engaging piece 6a and the engaging guide 3a are engaged with each other. No high processing accuracy is required.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction will be described below with reference to the drawings showing embodiments. Reference numeral 1 denotes a frame composed of a back plate and a side plate, 2 denotes a top plate constructed to cover the upper part of the frame 1, and 6 denotes a frame. 1 and top plate 2
The front panel 6 has a gently curved portion around its periphery so as to be continuous with the surfaces of the frame 1 and the top plate 2.

Reference numeral 7 denotes a gas source which is disposed inside the frame 1 and serves as a heat source.
A burner 8 using oil is a combustion chamber connected to the upper part of the burner 7. The burner 7 is provided with a combustion fan 10 for supplying combustion air and a fuel pump (not shown) for supplying fuel. The fuel supplied using the combustion chamber 8 is completely burned.

Reference numeral 9 denotes a hot-air fan mounted on a back plate constituting the frame body 1. Reference numeral 11 denotes a hot-air outlet formed in the front panel 6, and the combustion exhaust gas discharged from the combustion chamber is a hot-air fan 9. The hot air outlet 11
It blows out from the front.

Reference numeral 3 denotes an operation panel located at a curved portion of the front panel 6 facing the top plate 2. The operation panel 3 has an operation surface on which switches and lamps and an operation method display section are formed, and an operation panel 3. There is a base plate for fixing.
The stove of the embodiment is a petroleum fan heater using a household AC power supply, and a control device for operating the stove is operated by operating each switch to change the amount of fuel or air. , The rotation of the hot air fan 9 is controlled.

In general, the operation panel 3 is mounted on the top panel 2 and the upper part of the front panel 6. However, when the operation panel 3 is mounted on the front panel 6, the wiring cords hinder the maintenance performance and the maintenance performance is not good. In many cases, the operation panel 3 is attached to the top plate 2.

When a concave portion or an opening for mounting the operation panel 3 on the top plate 2 is formed, when a concave portion or an opening formed on the top plate 2 is provided at an end of the top plate 2, accuracy is not obtained by a general processing method. Therefore, it was difficult to form the operation panel 3 near the front edge of the top plate 2 after all. And
In many cases, the front edge of the top plate 2 is curved and the front panel 6
The operation panel 3 is moved as close to the front of the stove of the top plate 2 as possible.

At this time, a concave portion and an opening for mounting the operation panel 3 are formed on the top plate 2, and it is general to reduce the size of the concave portion and the opening formed on the top plate 2 and the top plate 2. The operation panel 3 is difficult to form near the front edge of the top plate 2 with a complicated processing method, and in many cases, the front edge of the top plate 2 is curved and connected to the front panel 6. With such a structure, the operation panel 3 is brought as close as possible to the front of the stove.

According to the present invention, a curved portion is provided at the upper portion of the front panel 6 so as to be continuous with the top plate 2, and excellent maintenance performance can be obtained even if the operation panel 3 is arranged at the curved portion of the front panel 6. The projection 4 is provided on the front edge of the top panel 2, and the projection 4 extends downward from a curved portion of the front panel 6 toward the top panel 2. And is continuous with the surface of the top plate 2 via a step.

Reference numeral 5 denotes a fixed opening formed by burring or the like near the front edge of the outer surface of the top plate 2 when the projection 4 is formed on the top plate 2. The lower protruding edges 5a are provided. Reference numeral 3b denotes an engagement hole formed on the base plate of the operation panel 3 to be engaged with the lower protruding edge 5a of the fixed opening 5. The operation panel 3 fits the engaging hole 3b into the lower protruding edge 5a from below. When the lower protruding edge 5a is expanded outward, the operation panel 3 is integrally attached to the protruding portion 4 of the top plate 2.

The operation panel 3 of the embodiment has a structure in which a synthetic resin member including a base plate from the operation surface and a base plate formed of a substrate on which switches and lamps are mounted are integrally formed.
On the base plate where the synthetic resin member and the substrate overlap,
An engagement hole 3b is formed at the same position.
The operation panel 3 is attached to the protruding portion 4 by fitting the lower protruding edge 5a of the fixed opening 5 to the opening.

Reference numeral 3a denotes an engagement guide portion raised from a synthetic resin base plate of the operation panel 3. The engagement guide portion 3a
Is formed adjacent to the operation surface of the operation panel 3 with a gap therebetween. In the embodiment shown in the figure, an engagement guide portion 3a is provided between the stepped portion of the top plate 2 and the operation surface of the operation panel 3 via a gap.

As described above, since the operation panel 3 is attached to the projection 4, the operation surface is integrated with the surface of the top plate 2, while the front edge of the curved portion of the front panel 6 facing the top plate 2. Are formed toward the surface of the top plate 2 and the operation surface of the operation panel 3. 6a is an upper locking piece formed by bending the front edge of the curved portion of the front panel 6 downward,
The upper locking piece 6a is fitted between the operation surface of the operation panel 3 and the engagement guide portion 3a, so that the operation surface of the operation panel 3 and the surface of the curved portion of the front panel 6 are continuous on the same plane. It is composed.

Since the engaging guide 3a is formed integrally with the base plate when the operation panel 3 is molded with resin, it is not necessary to provide an engaging portion on the projecting portion 4 side. Need not be continuous, and a portion of the protruding portion 4 where an error is most likely to occur can be eliminated.

Further, the position of the engagement guide portion 3a can be set at an optimum position where the upper locking piece 6a of the front panel 6 is engaged. An engagement guide portion 3a can be provided corresponding to the portion, and the upper locking piece 6a of the front panel 6
Is engaged with the engagement guide portion 3a of the operation panel 3,
The front panel 6 is hardly deformed even if it has an acute angle portion.
And the surface of the top plate 2 can be formed as a continuous surface.

When the upper locking piece 6a formed on the curved portion of the front panel 6 is formed continuously while being opposed to the top panel 2 and the operation panel 3, the upper locking piece 6a is resistant to deformation in the vertical direction. The upper locking piece 6a and the engagement guide portion 3a do not move because the upper locking piece 6a and the engagement guide portion 3a do not move. The surface from the front panel 6 to the surface of the top plate 2 is not uneven.

The front panel 6 has an upper locking piece 6a.
Is fitted to the engagement guide portion 3a from above, so that the front panel 6 can be removed while the operation panel 3 is left in front of the top plate 2 to perform maintenance such as a combustion test. Wiring to the control device can be implemented with a short wiring.

[0028]

Since the present invention has the above-described configuration and operation, in order to dispose the operation panel 3, there is provided a projection 4 extending forward while being slightly lowered from the top plate 2 by a step. A fixed opening 5 for attaching the operation panel 3 is also formed at the time of press working for forming the protruding portion 4, so that the amount of drawing work is small and the number of press work steps can be reduced. Also, drawing wrinkles are less likely to occur on the exposed surface of the top plate 2 divided by the steps, and processing can be easily performed even with a hard material such as a printed steel plate.

Also, even if wrinkles occur in the projection 4, the projection 4 cannot be seen from the outside because it is covered with the front panel 6 and the operation panel 3, which impairs the appearance of the stove. Nothing.

Further, the upper locking piece 6a of the front panel 6
Is not the projection 4 having the fixing opening 5 but the operation panel 3
And the engagement guide portion 3a provided on the top plate 2, so that even if a slight error occurs in the protrusion 4, the surface of the top plate 2
A surface treatment excellent in design can be performed without impairing the continuous properties of the exposed surface of the operation panel 3 and the surface of the curved portion of the front panel 6 having the upper locking pieces 6a.

The front panel 6 has a design in which the front panel 2 and the frame 1 are located at the front of the stove, but the operation panel 3 is disposed on the curved portion of the front panel 6 to make it very easy to handle. It is. Moreover, in the present invention, the operation panel 3 is configured to be attached to the top plate 2, and even if the front panel 6 is removed, the operation panel 3 remains as it is, so that the stove can be operated using the operation panel 3. That is, even if the operation panel 3 is arranged above the front panel 6, the maintenance is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an operation panel mounting state according to the present invention.

FIG. 2 is an exploded sectional view before assembling the components of FIG. 1;

FIG. 3 is an exploded plan view of the components.

FIG. 4 is a plan view of an essential part showing a state in which an operation panel is attached to a top plate.

FIG. 5 is a side sectional view showing the entire configuration of the stove.

FIG. 6 is a cross-sectional view of an operation panel mounting portion showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stove frame 2 Top plate 3 Operation panel 3a Engagement guide part 4 Projection part 5 Fixed opening 6 Front panel 6a Front panel upper locking piece

Claims (1)

(57) [Claims] 1. A front panel 2 having a top plate 2 attached to an upper portion of a frame 1 composed of a back plate and a side plate, and having a gently curved periphery so as to be continuous with the surfaces of the frame 1 and the top plate 2. In a stove in which the operation panel 3 is located at a curved portion of the front panel 6 toward the top plate 2 while being disposed in front of the frame 1 and the top plate 2, a curved portion of the front panel 6 is provided at a front edge of the top plate 2. A protrusion 4 is provided so as to protrude downward from the surface of the top plate 2 through a step, and a fixing opening 5 for fixing the operation panel 3 is provided in the protrusion 4.
An engaging guide portion 3a adjacent to the operation surface of the operation panel 3 with a gap therebetween is provided, and the front edge of the curved portion of the front panel 6 facing the top plate 2 is operated by the operation panel 3. An upper locking piece 6a bent downward is formed at the front edge of the curved portion of the front panel 6 which also faces the side portion of the front surface and faces the operation surface of the operation panel 3 and the top plate 2. The upper locking piece 6a is provided between the engagement guide portion 3a and the operation panel 3.
The operation panel structure of the stove, wherein the operation surface of the stove is engaged with the operation surface of the stove so that the operation surface of the operation panel 3 and the surface of the curved portion of the front panel 6 are continuous on the same plane.