JP4597222B2 - Drawer type cooking device - Google Patents

Description

  The present invention generally relates to a heating cooker, and more particularly to a drawer-type heating cooker in which a drawer body in which an object to be heated is stored or placed is provided so as to be able to be drawn out from the inside of the cooker body.

  In the drawer-type cooking device installed in the built-in, the dimensions of the opening of the heating chamber provided on the front of the main body are practically standardized, and the width, depth, and height of the built-in cooking device are constant. It is required to be. For example, a cooker that the applicant has already provided for the US market has a width of about 55 cm (24 inch standard) or about 77 cm (30 inch standard), a depth of about 60 cm, and a height of about 37 cm. As described above, regarding the width, two types of the 24-inch standard and the 30-inch standard are widespread, but the height and the depth are the same.

  The heating chamber of the cooking device is housed inside these external dimensions along with electrical and mechanical parts, so there is a great adjustment between the user's requirements and the external dimensions when designing a drawer-type cooking device. Occupies a position.

  A cooking device, particularly an interior lamp of a microwave oven, is usually fixedly installed in the wall surface of the heating chamber. During cooking and when the door is opened, the interior lamp is turned on to illuminate the heating chamber, thereby illuminating an object to be heated (cooked food) in the heating chamber for the convenience of the user. However, in the drawer-type heating cooker, the entire drawer body moves as the door is opened and closed, and the object to be heated also moves. Therefore, when the drawer body is drawn out when the door is opened, the food that has moved together with the drawer body cannot be illuminated by the fixed interior lamp. In particular, in a large-sized heating cooker, light does not reach the extracted food with the interior light.

  In a rotary opening / closing type door widely used in cooking devices, the lead wire is heated via the hinge part or its vicinity by utilizing the fact that the hinge part has a rotating shaft and the movement amount of the door is zero. 2. Description of the Related Art A structure for supplying power and transmitting signals between a cooker body and a door is known. However, in a drawer-type heating cooker, since there is no shaft corresponding to the hinge portion, in order to provide an illuminating device at the door portion away from the cooker body, power is supplied, that is, illumination on the drawer body. In order to transmit electric power to the light source from the main body side, it is necessary to connect the cooker main body and the door portion via a lead wire or the like.

  Instead of lead wires, rails intended for energization are generally used but are very expensive. Further, in the non-contact power transmission means, power and signal cannot be transmitted when the door is not in the fully closed state, that is, in the open state, so that the power storage means is required on the door. Furthermore, if the close contact between the inner surface of the door and the front surface of the heating chamber is impaired, the transmission efficiency is lowered, so that durability against door opening and closing is required. Conventional incandescent lamps used for interior lamps are prone to filament breakage due to impacts caused by door opening and closing, and because the lighting efficiency is extremely low, a large current is required and power supply is difficult. Since the size is large and the heat generation is large, there is a drawback that ventilation is required and the space on the door is greatly occupied.

  An energization structure for furniture that does not expose wiring has been proposed (see Patent Document 1). In this energizing structure for furniture, a conductor region and a non-conductor region are provided in each of the fixed portion and the moving portion constituting the furniture slide portion, and the fixed portion conductor and the moving portion conductor are brought into contact with each other in a predetermined sliding state. To energize. Energization and switching are realized by the contact relationship between the conductor and the conductor or non-conductor of the slide portion.

  Regarding a slide rail used for taking in and out an internal unit of an OA device such as a copying machine, a housing side rail formed of a material capable of being energized, and a unit side rail formed of a material capable of being energized connected to be energized , One having an energizing contact that is located across the front outer surface of the housing side rail and the rear outer surface of the unit side rail and allows energization between the housing side rail and the unit side rail has been proposed (patent) Reference 2). According to this slide rail, the electricity charged in the unit flows from the unit side rail through the energizing contact to the case side rail, and further flows to the case to be grounded.

  As is apparent from Patent Document 2, in office equipment and factory equipment, several prior arts have been disclosed as means for ensuring electrical continuity between a fixed member and a moving member. In order to employ | adopt as a heating cooker, it is very expensive compared with electric power feeding means, such as a lead wire used conventionally, and adoption is difficult.

Further, the non-contact power supply means described in Patent Document 3 needs to operate the operation unit and the display unit with a power storage unit such as a capacitor when the door is opened, and is left unattended for a long time with the door open. Although it has been put to practical use with refrigerator doors with a small amount of heat, there is a possibility that the cooking device will remain open for a long time. Since adoption is required, it cannot be said that it is a simple solution.
Japanese Utility Model Publication No. 06-50181 JP 09-36557 A JP-A-60-211811

  If the lighting device is provided in the drawer, the relative position between the lighting device and the drawer does not change even if the drawer is pulled out of the heating chamber. Can be illuminated. However, there is a problem that it is difficult to supply electric power between the power supply unit in the heating cooker body and the lighting device that moves together with the drawer that moves to open and close the heating cooker body.

  In order to supply power between the cooker body and the drawer body, it is generally considered to connect with a bendable lead wire such as a flexible cable. Corresponding to the movement of the body, the lead wire bends as many times as the door opening / closing operation is performed, and the lead wire is likely to be disconnected. Therefore, the power supply by the lead wire is very disadvantageous in terms of durability, so it is very difficult to put into practical use. Therefore, the power supply and signal transmission between the heating cooker body and the drawer body movable with respect to the heating cooker body should be solved in terms of performing high durability using existing mechanisms. There are challenges.

  The object of the present invention is to utilize an existing conductive mechanism without using a bendable wire between the heating cooker body and the drawer body movable with respect to the heating cooker body. By performing, it is providing the drawer | type drawer | type heating cooker which can perform required electric power supply at low cost to the illuminating device provided in the drawer | drawing-out body.

In order to solve the above-described problems, a drawer-type cooking device according to the present invention includes a cooking device body in which a heating chamber formed inside is opened to the outside through an opening, and a power supply unit provided in the cooking device body. A drawer body having an opening / closing door which is disposed so as to be able to be pulled out from the heating chamber of the cooker body and is capable of closing the opening in a state of being housed in the heating chamber, and for moving the drawer body and a moving mechanism, the moving mechanism is disposed on at least the left and right outside of the heating chamber, wherein the moving mechanism includes a fixed rail mounted on the front Symbol cooking device body, wherein the door of the drawer body And a movable rail slidable along the fixed rail, wherein the drawer body illuminates the interior of the drawer body Illumination device is disposed, the moving mechanism provides an electric power supply path for supplying power for the lighting device by connecting the illumination device and the power supply unit,
The power supply path is formed from the power supply unit through the moving mechanism disposed on the left and right outer sides of the heating chamber, the illumination device, and the moving mechanism disposed on the outer left and right sides of the heating chamber. It is characterized by being.

  In the drawer-type heating cooker, there is a slide rail that connects the cooker body and the drawer body. Conventionally, the slide rail is recognized as being used only for drawing out the drawer body. According to this drawer-type heating cooker, as the power supply to the lighting device of the drawer-type heating cooker, it is used that the moving mechanism of the drawer body side and the main body side is always in a sliding state, so that durability Therefore, it is possible to supply power to the lighting device with a low-cost member.

In this drawer-type heating cooker, it is preferable that the fixed rail and the movable rail of the moving mechanism maintain conductivity throughout the entire moving section . Also, an illumination light source of the illumination device may be a light emitting diode. Since the light emitting diode has high luminous efficiency as an illumination light source and is a small point light source, it does not occupy a space even when mounted on a drawer, particularly on its door. Furthermore, by providing the lighting device at the upper end portion of the door, the inside of the drawer can be widely illuminated from the upper end portion of the door to the rear lower side. The lighting device is turned on at least in a state in which the drawer body is pulled out of the heating chamber, and in a cooking process in which the drawer body is housed in the heating chamber, in accordance with the convenience of the user. Become.

According to this drawer-type heating cooker, power is supplied from the heating cooker main body side to the lighting device provided in the drawer body through the existing moving mechanism disposed outside the heating chamber. Since the sliding state in which the moving mechanism is always conductive is used and no additional parts are required, power supply to the lighting device can be performed at low cost. In addition, since there is no need to use a bendable lead wire, there is no need to worry about disconnection of the signal wire due to door opening and closing operations, which is a concern with the lead wire method, even when the drawer body is repeatedly opened and closed. can exhibit, also during cooking, cooking be affected by the microwave and hot air to be used almost rather name, splash and the like from the food to be heated nor adhere . Moreover, since the illuminating device of a heating cooker can be provided in a drawer body, without providing in a cooker main body, even after drawing out a drawer body, the inside of a drawer body can be illuminated. In addition, when an LED, which is a solid light source, is used as the lighting device, there is no possibility that the filament will be damaged unlike incandescent lamps, and the possibility of damage or failure due to impacts associated with opening and closing of the door is extremely low. Furthermore, if the lighting device is installed on the opening / closing door, there is an advantage that the light source can be easily replaced in the event of a failure.

  Embodiments of a drawer-type cooking device according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the overall appearance of an embodiment of a drawer-type cooking device according to the present invention. FIG. 2 is a side view showing a part of the drawer-type heating cooker shown in FIG.

  As shown in FIG. 1, the drawer-type heating cooker (hereinafter, abbreviated as “heating cooker”) includes a cooker body 1 and a drawer 2 that can be pulled out from the cooker body 1. A heating chamber 3 for cooking an object to be heated placed on the drawer body 2 is formed inside the cooker body 1. On the front surface of the cooker body 1, an opening 3 a is provided that opens the drawer 2 from the heating unit 3 so that the drawer 2 can be pulled out.

  The drawer body 2 includes an opening / closing door 2a for opening and closing the heating chamber 3, and a container-like accommodation portion 2b to which the opening / closing door 2a is attached and which accommodates an object to be heated. The drawer body 2 is arranged so as to be movable as shown by an arrow in FIG. 1 with respect to the cooker body 1 by a slide mechanism provided outside the heating chamber 3 so that the drawer body 2 can be pulled out from the inside of the heating chamber 3. Has been. In order to support the drawer body 2 on the cooker body 1, the open / close door 2a is connected to a slide mechanism, and is also supported by the heating chamber 3 by a roller or the like in the housing portion 2b. The drawer body 2 is pulled out forward from the cooker body 1 and the housing portion 2b comes out of the opening 3a (corresponding to the drawer state in FIG. 1), and is pushed into the cooker body 1 and housed. 2 b can move between the storage positions stored in the heating chamber 3. When the opening / closing door 2a closes the opening 3a of the heating chamber 3, the inside of the heating chamber 3 becomes a space sealed by the inner wall surface of the cooker body 1 and the drawer body 2, and the outside of the microwave generated during heating Leakage is prevented.

  In order to move the drawer body 2 in the cooker main body 1, the slide mechanism has left and right slide mechanisms 4, 4 disposed on the left and right outer sides of the heating chamber 3 and a center disposed on the lower lower center of the heating chamber 3. And a slide mechanism (not shown in FIGS. 1 and 2) 4. As shown in FIG. 2, each of the left and right slide mechanisms 4 includes a fixed rail 4a attached to the cooker body 1 side and a movable rail 4b attached to the drawer 2 side and slidable along the fixed rail 4a. I have. The fixed rail 4a and the movable rail 4b are made of conductive metal products, and the conductivity is maintained through the entire slide section between the two rails. In the section, the two rails 4a and 4b slide relative to each other. Energization via the moving surface is possible. In order to guarantee repeated opening and closing of the open / close door 2a, grease is necessary for the sliding portion of the slide mechanism 4, but conductive grease is used as the grease to ensure conductivity in the sliding portion. . In addition, the movable rail 4b is being fixed in the state insulated with respect to the opening-and-closing door 2a which receives microwave irradiation. When the slide rail is attached, insulation is applied between the support angle and the cooker main body 1 so that the slide rail can be supplied with power instead of the lead wire.

  The open / close door 2a of the drawer body 2 has an operation portion 9 that protrudes from the front surface and serves as a handle at the time of manual operation. The operation unit 9 is provided with an illumination device 25 that illuminates the drawer body 2. Various operation buttons 9a for cooking and the like can be arranged on the front upper portion of the cooker body 1, and a control unit including a microcomputer for performing various controls of the heating cooker, although not shown, Such a display unit can be included.

  As the illumination device 25, an LED light source which is a solid light source (point light source) is used. The LED light source is advantageous because there is no possibility that the filament is damaged unlike an incandescent lamp, and the possibility of damage or failure due to an impact associated with opening and closing of the door is extremely low. By installing the illumination device 25 on the upper part of the open / close door 2a, the light source can be easily replaced in the event of a failure. The illumination device 25 illuminates the object to be heated (cooked food) placed on the drawer body 2 by illuminating the rear lower side from the upper end portion of the opening / closing door 2a, regardless of the drawer state or the storage state of the drawer body 2. be able to.

  A power supply line 6 that supplies power to the lighting device 25 is connected to the movable rail 4b. The power supply line 7 is also connected to the power supply unit 10 in the fixed rail 4a. Accordingly, power is supplied from the power supply unit 10 to the lighting device 25 through a power supply path including the power supply line 6, the slide mechanism 4 (the fixed rail 4 a and the movable rail 4 b) itself, and the power supply line 7. A power supply path 8 indicating this power supply is schematically illustrated.

  The cooker main body 1 is provided with switches 11 a and 11 b that detect the fully open drawer position and the fully closed storage position of the drawer body 2 in cooperation with the actuator 12 provided in the drawer body 2. In addition, the drawer body 2 is provided with a latch 14 that can be engaged with a hook 13 provided in the cooker body 1 at the storage position. For operating safety of the cooking device, the heating power source can be energized while the latch 14 is engaged with the hook 13. In addition, a magnetron 20 for generating microwaves is disposed in the space on the back side of the cooker body 1 together with the power supply unit 10, and further, a microtron generated by the magnetron 20 is disposed in the ceiling space of the cooker body 1. A waveguide 21 that guides the wave to the heating chamber 3 is provided, and a rotary antenna and an antenna motor are incorporated in the ceiling space, although not shown.

  Both rails 4a, 4b and their drive mechanisms (motors) are provided separately from the heating chamber 3, so there is no need to use expensive heat-resistant and flame-retardant parts and materials, It can be prevented from being exposed to microwaves that cause high temperatures and electric discharges, and can be prevented from being affected by food residue. Further, since each slide mechanism 4 is provided outside the heating chamber 3 as described above, the opening 3a is closed with respect to the cooker body 1 so that there is no microwave leakage when the door 2a is closed. The slide mechanism 4 is completely isolated from the heating chamber 3. Moreover, the magnetron 20 that is a microwave generator can be energized only under the condition that the door 2a is closed. Therefore, when the magnetron 20 is operated, the microwave does not affect the control rails and the metal rails of the slide mechanism 4 serving as a power feeding path. Furthermore, when the opening / closing door 2a is opened, the magnetron 20 is not energized, so that the metal rails of the slide mechanism 4 are not affected. The voltage and power for driving the lighting device 25 are separated from the commercial power source by a power transformer, a rectifier circuit, and the like, and are low voltage and low power, so that a person may touch the slide mechanism 4. There is no problem even if it exists.

  FIG. 3 is a schematic view of a power supply line of the drawer-type heating cooker according to the present invention. In the embodiment shown in FIG. 3, the fixed rail 4 a and the movable rail 4 b provided on the left and right slide mechanisms 4, 4 are provided on the open / close door (door) side from the power supply unit 10 on the cooker body 1 side. The power supply lines 16 and 16 are used together with drive power supply lines 6 and 7 for supplying power to the device 25. These power supply lines 16 and 16 are connected to the drawer body 2 from the main body 1 side by two-wire connection. Power is being supplied.

  FIG. 4 is a view showing an inner surface of the open / close door of the drawer-type heating cooker shown in FIG. 1. As shown in FIG. 4, the lighting devices 25, 25 are provided on the inner surface of the opening / closing door 2 a above the window 26 for seeing through the inside of the heating cooker (permeation of microwaves is blocked) of the drawer body 2. The interior is arranged so that it can be illuminated. In this example, two LED lights are arranged, but the number can be appropriately changed according to the width.

  In the above-described embodiment, the left and right slide mechanisms 4 and 4 are used as a power feeding path. However, the drawer-type heating cooker according to the present invention is not limited to this form, and for example, a bottom slide provided outside the heating chamber. It is obvious that the power may be supplied using a mechanism (if necessary, a plurality of slide mechanisms 4 on the bottom side may be provided).

  Some plain paper copiers have a moving mechanism with an energizing function, but this moving mechanism is energized for the purpose of gradually discharging static electricity generated in the toner fixing unit and the paper feeding mechanism. The configuration is not intended for power supply. Therefore, the reliability required for the lighting application of the drawer-type heating cooker according to the present invention, such as the stability of the voltage level, is not guaranteed, and it is difficult to use it for the lighting application of the drawer-type heating cooking apparatus. .

It is a perspective view which shows the whole external appearance of one Example of the drawer-type heating cooker by this invention. It is a side view which cut | disconnects and shows a part of drawer-type heating cooker shown in FIG. It is a schematic diagram of the electric power supply line of the drawer type cooking-by-heating machine shown in FIG. It is a schematic diagram which shows the inner surface of the opening-and-closing door of the drawer type cooking-by-heating machine shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooker body 1 2 Drawer body 2a Door 2b Accommodating part 3 Heating chamber 3a Opening part 4 Slide mechanism 4a Fixed rail 4b Movable rails 6, 7 Power supply line 9 Operation part (grip) 9a Operation button 10 Power supply part 11a, 11b Switch 12 Actuator 13 Hook 14 Latch 16 Power Supply Line 20 Magnetron 21 Waveguide 25 Illumination Device 26 Window

Claims (5)

A cooker body in which a heating chamber formed inside is opened to the outside through an opening;
A power supply provided in the cooker body;
A drawer body having an opening and closing door that is disposed so as to be able to be pulled out from the heating chamber of the cooking appliance main body and is capable of closing the opening in a stored state in the heating chamber;
A moving mechanism for moving the drawer body;
The moving mechanism is disposed at least on the left and right outer sides of the heating chamber,
The moving mechanism includes a fixed rail attached to the cooker main body and a movable rail attached to the open / close door of the drawer body and slidable along the fixed rail. In the type heating cooker,
The drawer body is provided with a lighting device for illuminating the inside of the drawer body,
The moving mechanism provides an electric power supply path for supplying power for the lighting device by connecting the illumination device and the power supply unit,
The power supply path is formed from the power supply unit through the moving mechanism disposed on the left and right outer sides of the heating chamber, the illumination device, and the moving mechanism disposed on the outer left and right sides of the heating chamber. A drawer-type heating cooker characterized by being made .   The drawer-type heating cooker according to claim 1, wherein the fixed rail and the movable rail of the moving mechanism maintain conductivity throughout the entire moving section. The drawer-type cooking device according to claim 1 or 2 , wherein the illumination light source of the illumination device is a light emitting diode. The drawer-type heating cooker according to any one of claims 1 to 3 , wherein the lighting device is provided at an upper end portion of the door. The lighting device, at least, a state where the drawer body drawn from the heating chamber, and the drawer body in a cooking carried out housed in the heating chamber, according to claim 1-4, characterized in that to be turned A drawer-type heating cooker according to any one of the above.