JPH0248728Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a toaster oven, and particularly relates to a mounting structure for a wiring board such as an electronic timer for controlling roasting time.

[Conventional technology]

Conventionally, in this type of oven toaster in which the roasting time is set using an electronic timer, a wiring board has been arranged in a space adjacent to the roasting chamber of the toaster body.

[Problem that the invention attempts to solve]

However, in the conventional structure, if the space between the roasting chamber and the space is narrow, the temperature of the space rises, the wiring board is distorted by the heat, stress is generated, the wiring pattern is peeled off, and the space between the roasting chamber and the space is narrow. There was a problem in that moisture, oil smoke, etc. from the roasted material adhered to the wiring board, causing problems such as short circuits on the wiring board.

This invention was devised in view of the above-mentioned problems. The wiring board can withstand long-term use without being affected by the heat of the roasting chamber, and the wiring board can be used in the roasting chamber without being adversely affected by moisture, oil smoke, etc. of the roasted material. It is an object of the present invention to provide an inexpensive toaster oven that is easy to assemble by allowing a wiring board to be attached to a space adjacent to the toaster oven.

[Means for solving problems]

In the toaster oven of the present invention, a space is formed adjacent to a roasting chamber in the toaster body, a heater is provided in the roasting chamber, and an insulating support plate for supporting a wiring board is erected in the space. A wiring board is attached to the surface of the insulating support plate opposite to the roasting chamber, and the insulating support plate and the side plate of the toaster body form a wiring board storage portion that covers the entire wiring board. This is a characteristic feature.

[Effect]

The toaster oven of the present invention has an insulating support plate erected in the space adjacent to the roasting chamber of the toaster body,
By attaching the wiring board to the opposite side of the insulating support plate from the roasting chamber side and attaching the side plate of the toaster body, the wiring board is covered and stored in the wiring board storage part,
An insulating support plate located on the roasting chamber side of the wiring board protects the wiring board by blocking heat from the roasting chamber, and the wiring board is covered with a wiring board storage section to prevent heat generated from the roasted material in the roasting chamber. This can prevent moisture and oily smoke from adhering to the wiring board.

〔Example〕

An embodiment of the present invention will be described based on the drawings.

11 is the toaster oven main body, this main body 11
As shown in FIG. 2, a pair of left and right main frames 12 and 13 molded from metal plates, an upper reflecting plate 14,
A roasting chamber 17 which is constituted by a front lower reflector plate 15 and a bottom plate 16 and is open to the front is formed. A pair of left and right side plates 18, 19 are attached to both sides of this toaster main body 11, and these side plates 18, 1
Case cover 20 that covers the top and rear surfaces between 9
The toaster body 21 is composed of these parts. Inside this vessel body 21, the right main frame 12 is used as a partition plate,
As shown in FIG. 1, a space 23 whose front surface is covered with a decorative board 22 is formed on one side of the roasting chamber 17 and is located between the right main frame 12 and the right side plate 18. There is. Furthermore, an elongated frame plate 24 extending left and right is provided on the upper front side of the main body 11.

The upper reflector 14 and the lower reflector 15 are fixed between the main frames 12 and 13 by screws, engagement claws, and engagement holes, and the frame plate 24
is fixed to the upper side of the edge formed by bending outward at the front part of the main frames 12, 13 with screws.

Further, an upper heater 25 and a lower heater 25 are provided at the upper and lower portions of the roasting chamber 17, and a grilling grate 26 is provided between the upper heater 25 and the lower heater 25.

Next, 27 is a door body, which includes a door frame 28 and this door frame 2.
A glass plate 30 is positioned in the window hole 29 of No. 8 and fitted from the inside surface, and a holding plate 31 is fitted into the door frame 28 from the inside side and fixed with screws to hold the glass plate 30. It is configured.

Both sides of the lower part of this door body 27 are rotatably supported by shafts on both sides of the front lower part of the main frames 12 and 13 of the main body 11, and the rotation of the door body 27 causes the roasting chamber to open. The front opening of 17 can be opened and closed.

Furthermore, guide holes 32 are formed in the lower part of the main frames 12 and 13 of the main body 11 in the front-rear direction, and a grill grate 26 provided in the roasting chamber 17 so as to be movable in the roasting chamber 17 protrudes from both rear sides thereof. The engaged shaft 33 is slidably engaged. And this grill 26
is connected to the door body 27 by an arm (not shown), is placed inside the roasting chamber 17 when the door body 27 is closed, and is located in front of the opening of the roasting chamber 17 when the door body 27 is opened. It is becoming more prominent.

Next, 34 is a waste receptacle, and this waste receptacle 3
4 is constructed by attaching a grip part 36 made of molded synthetic resin to the front end of a dish part 35 made of a metal plate.

A timer switch and the like attached to the inner surface of the decorative board 22 are housed in the space 23, and the front surface of the decorative board 22 is provided with operation parts such as various switches.

Further, in the space 23, an insulating support plate 43 on which a wiring board 41 for mounting various electronic components is attached with screws 42 is fixed to the bottom plate 16 in the front and back direction with screws 44, and this insulating support plate 43 is fixed to the bottom plate 16 with screws 44. It is arranged parallel to the main frame 12 on the right side. The wiring board 41 is attached to the side surface of the insulating support plate 43 opposite to the roasting chamber 17 side. Further, on both sides of the insulating support plate 43, side portions 45 are provided in a substantially U-shape with the bottom surface open and covering both sides and the upper side of the wiring board 41. A mounting base portion 46 is formed for fixing the support plate 43 to the bottom plate 16 with screws 44. Several lead wires, which are electrically connected from this wiring board 41 to electrical parts such as heaters 25, 25 in the roasting chamber 17 and switches attached to the decorative board 22, are cut in the lower part of the side part 45. It has been pulled out from the drawer section 48 where it was.

The upper edge of this insulating support plate 43 has a lead wire support portion 51 having a groove 50 with a narrow entrance 49 and a wide inside.
are formed at two locations by a pair of L-shaped ribs 52 whose tips are bent toward opposite sides.
The several lead wires 47 are inserted and supported within the groove 50 of the lead wire support portion 51.

Further, the bottom plate 16 is provided with a plurality of elongated hole-shaped ventilation portions 53 located on both sides of the insulating support plate 43 disposed in the space 23 , and the case cover 20 is provided with ventilation portions 53 located in the space 23 . A plurality of elongated hole-shaped ventilation portions 54 are formed.

Also, the side plates 18, 1 molded from the synthetic resin
One of the side plates 18 of 9 has a protruding wall 56 on its lower surface that forms a wiring board storage part 55 that fits on the outer circumferential side of the side part 45 of the insulating support plate 43 and covers the entire wiring board 41. It is integrally protruded in an open, approximately U-shape. Further, a plurality of elongated hole-shaped ventilation portions 57 communicating with the wiring board storage portion 55 are formed in one side plate 18 .

Next, the operation of this embodiment will be explained.

The wiring board 41 is arranged on the insulating support plate 43 at a position surrounded by the side parts 45 and fixed with screws 42, and the mounting base part 46 of this insulating support plate 43 is attached to the bottom plate 16 of the toaster body 11 with the screws. Fix it at 44.
Then, the lead wire 47 connected to the wiring board 41 is pulled out from the lead-out portion. Next, side plates 18 and 19 are attached to both sides of the toaster main body 11, and a case cover 20 is attached between these side plates 18 and 19. When one side plate 18 is attached, the projecting wall 56 of the side plate 18 is fitted into the side part 45 of the insulating support plate 43, and the wiring board 41 is connected to the insulating support plate 43 and the side plate 18.
The entire board is covered and stored in a wiring board storage section 55 formed by. The lead wires 47 connected to the heaters 25, 25 are inserted and supported in the grooves 50 of the lead wire support portions 51 of the insulating support plate 43.

During roasting, the roasting chamber 17 is heated by energizing the heaters 25 , 25 , and between the wiring board 41 and the roasting chamber 17 where radiant heat is transmitted into the space 23 via one main frame 12 . Since the insulating support plate 43 is interposed, the radiant heat is blocked by the insulating support plate 43 and does not reach the wiring board 41. Therefore, the adverse effects of heat on the wiring board 41 and various electronic components wired to the wiring board 41 can be avoided.

As shown in FIG. 4, in the space 23, an air flow is generated by thermal convection from the ventilation part 53 of the bottom plate 16 of the toaster body 11 to the ventilation part 54 formed in the case cover 20, and this air flow becomes an adiabatic flow. This prevents heating of the insulating support plate 43 and prevents the wiring board storage portion 5 from heating.
5 also reduces the thermal influence on the wiring board 41 and electronic components by the airflow caused by convection flowing from the ventilation part 53 of the bottom plate 16 to the ventilation part 57 of the side plate 18. Since the wiring board 41 is entirely covered by the wiring board storage section 55 formed by the insulating support plate 43 and the side plate 18, moisture generated in the roasted material in the roasting chamber 17,
No oily smoke is attached.

[Effect of idea]

According to the present invention, a wiring board is attached to the opposite side of the roasting chamber of an insulating support plate provided in a space adjacent to the roasting chamber, and this wiring board is formed by the insulating support plate and the side plate. Since the entire wiring board is covered and stored in the wiring board storage area, the radiant heat from the roasting chamber can be blocked by the insulating support plate, and the wiring board and various electronic components installed on the wiring board will not be adversely affected by the heat. Since moisture and oil smoke from the roasted material do not adhere to the board, the wiring pattern does not peel off due to thermal distortion of the wiring board, and electrical failure does not occur, and the structure is simple and easy to assemble. It is.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a portion of a toaster oven showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the toaster oven, Fig. 3 is a perspective view of the wiring board portion of the above, and Fig. 4 is a partially vertical front view of the toaster oven, and FIG. 5 is a perspective view of the upper side plate.
FIG. 6 is a perspective view of the toaster oven. 17... Roasting chamber, 18, 19... Side plate, 21...
... Toaster body, 23 ... Space, 25 ... Heater, 41 ... Wiring board, 43 ... Insulating support plate, 5
3, 54, 57... Ventilation section.

Claims (1)

[Claims for Utility Model Registration] (1) An insulating support plate forming a space adjacent to a roasting chamber in the toaster body, providing a heater in the roasting chamber, and supporting a wiring board in the space. is erected, a wiring board is attached to the surface of the insulating support plate opposite to the roasting chamber, and a wiring board storage part is formed that covers the entire wiring board by the insulating support plate and the side plate of the toaster body. A toaster oven characterized by forming. (2) At the bottom of the space of the toaster body, vents are opened on both sides of the support plate, and vents are formed at the top of the space and at a position facing the wiring board storage area on the side plate. A toaster oven according to claim 1, characterized in that it is a utility model.