JPH03284219A - Multiple heating apparatus - Google Patents

Abstract

PURPOSE:To avoid a need of providing an exclusive heat source for each heater by a method wherein a cabinet, where two or more independent heaters are housed, is equipped with a heat source and a heat distribution fan, and hot-air heated by the heat source is distributed to the heaters by the heat distribution fan. CONSTITUTION:When start switches for equipment to be used among equipment 9-14 are operated, motors, etc., of a heat source 19 and a heat distribution fan 22 are energized. Then, the heat distribution fan 22 sucks air through a circulation duct 26 or an outside air intake 35 corresponding to the change-over state of a change-over damper and sends air to the heat source 19. The air is heated by the heat source 19, turned to hot-air and supplied from supply ports into the main bodies to the equipment through heat distribution ducts 23. Then, the air supplied into the main bodies is discharged from air outlets. The discharged air flows into a return duct 26, and returned to the heat source 19 through a fan casing 22a. Thus, the air is circulated, and a high heat efficiency is achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a collective heating device in which a plurality of different heating devices are heated by a common heat source.

(Prior Art) In general households, there are various heating devices such as dish dryers, toasters, roasters, microwave ovens, and rice cookers.

(Problems to be Solved by the Invention) The above-mentioned heating device naturally has its own heat source, so it is quite expensive in terms of cost.
Furthermore, since a space is required to install a heat source, the device tends to be large and requires a large installation space.

The present invention has been made in view of the above circumstances, and its purpose is to enable one heat source to be used as a common heat source for a plurality of different heating devices, thereby eliminating the need for each heating device to have its own heat source. To provide collective heating equipment.

[Structure of the Invention] (Means for Solving the Problems) The collective heating device of the present invention is provided with a heat source and a heat distribution fan device in a cabinet housing a plurality of different heating devices, and a heating device heated by the heat source. The structure is such that air is sent to each heating device via a heat distribution path using a heat distribution fan device.

In this case, in order to increase thermal efficiency, it is preferable to provide a return path for returning heated air supplied to each heating device to the heat source through a heat distribution fan device.

In addition, in order to prevent the air from being re-supplied to the heating equipment when the air discharged from the heating equipment is mixed with odor, smoke, large amounts of steam, etc., the exhaust air connected to each heating equipment is It is also possible to provide a configuration in which air inside each heating device is sucked through the exhaust path and exhausted by an exhaust fan device.

Furthermore, in order to control the temperature inside each heating device, a damper may be provided in the supply section that supplies heated air to each heating device, and this damper may be opened and closed by a control means according to the temperature inside the heating device. .

Further, the control means can also change the amount of heat generated by the heat source depending on the number of heating devices being used or the temperature within each heating device.

(Function) Since the air heated by one heat source is sent to each heating device by the heat distribution fan device, there is no need to provide a dedicated heat source for each heating device.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

First, in FIGS. 1 and 2, the cabinet 1 is formed vertically. An operating section 2 is provided in the middle part of the front surface of the cabinet 1, which is easy for a person to operate. Furthermore, two left and right storage chambers 3 and 4 (see also FIG. 7) are formed in the lower part of the cabinet 1, and another storage chamber 5 is formed between these storage chambers 3 and 4 and the operating section 2. Storage chambers 6 to 8 are formed above and below the operating section 2 in three stages. Insulating pots 9 are placed in storage compartments 3 and 4.
and a rice cooker 10 are disposed; hereinafter, an oven range 11 is provided in the storage chamber 5; a dish dryer 12 is provided in the storage chamber 6;
A toaster 13 is placed in the storage chamber 7, and a roaster 14 is placed in the storage chamber 8.
Different heating devices are housed. Note that the detailed internal structure of each device 9 to 14 will be omitted. The attachment of each of these devices 9 to 14 to the cabinet 1 is carried out using a presser metal fitting 16 applied to the front flange 15H of the main body 15 of each device 9 to 14, as shown in FIGS. 3 and 4.
are fastened to the front flange 1a of the cabinet 1 with screws 17, and by removing the screws 17, each device 9 to 14 is connected to each storage chamber 3 to 8.
It can be removed from. and,
As shown in FIG. 4, a rectangular decorative frame 18 is attached to the presser metal fitting 16 by elastic engagement between the hole 16g and the claw 18a, so that the presser metal fitting 16 and the screw 17 are covered.

Now, each of the appliances 9 to 14 is not equipped with its own heat source (only the microwave oven 11 is equipped with a magnetron for microwave heating), and instead, the cabinet 1 has a common source for each of the appliances 9 to 14. A heat source 19 is provided. This heat source 19 includes, for example, four
The electric heaters 19a to 19d are provided in the case 20 and are made up of resistance heating wires. and,
The case 20 is disposed in a heat source chamber 21 formed below the storage chamber 3 together with a heat distribution fan device 22 .

As shown in FIG. 9, this heat distribution fan device 22 includes a centrifugal fan 22c driven by a motor 22b disposed within a fan casing 22a.

One end side of the case 20 is a fan casing 22a.
The other end is connected to a heat-resistant duct 23 as a heat distribution path. This heat-resistant duct 23 is installed at the back inside the cabinet 1, and has a supply port 23a as a hot air supply section protruding at a position corresponding to each of the devices 9 to 14, as shown in FIG. . Each of these supply ports 23
a is connected to an inlet 15a formed on the back surface of the main body 15 of each device 9-14. A damper 24 whose driving source is, for example, an electromagnet 24a (see FIG. 11) is disposed inside each supply port 23a, and by opening and closing this damper 24, the supply of hot air to each device 9 to 14 is controlled. I try to do that.

Also, on the back inside the cabinet 1, there are figures 7 and 8.
As shown in the figure, an exhaust duct 25 serving as an exhaust path for discharging the hot air supplied to each of the devices 9 to 14 to the outside is arranged facing upward. A return duct 26 serving as a return path for returning heat to the heat source 19 via the fan casing 22a is disposed facing downward. The exhaust duct 25 and the return duct 26 are arranged close to each other, and a common socket 27 is provided at a portion corresponding to each of the devices 9 to 14. The openings 27 of these pedestals are connected to the outlets 15b formed on the back surface of the main body 15 of each of the devices 9-14. A switching damper 28 whose driving source is an electromagnet 28a (see FIG. 11) is provided in the receiver 27, and this switching damper 28 exhausts the incoming light of the air flowing out from the outlet 15b of the main body 15. Switching is performed between the duct 25 and the return duct 26. In addition, the entrance 15a of the main body 15 of each device 9 to 14
A gasket 29 is provided around the outer circumference of the outlet 15b, and when the main body 15 is attached to the cabinet 1 as described above, the gasket 29 is connected to the supply port 23a and the socket 23a.
By press-contacting the tip of the inlet 7, the inlet 15a and the outlet 15b are airtightly connected to the supply port 23a and the receiving port 27.

The upper part of the exhaust duct 25 is bent forward along the ceiling surface of the cabinet 1, as shown in FIG.
It is opened at a.

A deodorizing/smoking device 30 filled with activated carbon or the like is disposed directly below the upper bent portion 25a of the exhaust duct 25, and a centrifugal fan 31b driven by a motor 31a is housed in the bent portion 25a of the large exhaust duct 25. By doing so,
An exhaust fan device 31 is configured.

Further, the tip end of the return path 26 is connected to the suction part of the fan casing 22a of the heat distribution fan device 22, as shown in FIG. An outside air intake port 33 equipped with a filter 32 is formed at the tip of the return path 26, and a switching damper 34 whose driving source is an electromagnet 34a (see FIG. 11) is arranged at the tip. ing. When the switching damper 34 is in the state shown by the solid line in FIG. 34 is in the state shown by the two-dot chain line in FIG. Note that FIG. 10 schematically shows the overall piping configuration of the heat-resistant duct 23, exhaust duct 25, and return duct 26.

Now, as shown in FIG. 2, the operation unit 2 includes a power switch 35, switches 9a to 14a1 for starting and stopping the heating operations of each device 9 to 14, an oven oven 1
Various switches such as a switch 11b for starting and stopping the oscillation operation of the magnetron No. 1, and a display 36 for displaying the operating status of each device 9 to 14 are provided. Also,
As shown in FIG. 7, an electric chamber 37 formed below the storage chamber 3 has a microcomputer 38 (
A control circuit 39 and a cooling fan device 40, each of which has a main component (see FIG. 11), are provided. This cooling fan device 4
0 has a propeller fan 40b directly connected to a motor 40a, and a rear grill 1c at the bottom of the cabinet 1.
Outside air is sucked in from the cabinet 1 to blow cooling air onto the control circuit 39, and the air after cooling the control circuit 39 is discharged from the front grille 1b of the cabinet 1.

Therefore, in FIG. 11 showing the electric circuit configuration, one terminal of the plug 41 connected to the commercial AC power supply is connected to the bus bar 4.
2, and the other terminal is connected to a bus bar 43 via a power switch 35.

The electric heaters 19a to 19d1 motor 1 22b, 31a, 40a, electromagnets 24a, 28a.

34a are connected in series with normally open switches 44a to 50a of relay switches 44 to 50, respectively, and these series circuits are connected in parallel between both bus bars 42 and 43. On the other hand, the control circuit 39 includes the various switches 9a to 14a,
Signals from temperature sensors 51 provided in the main body 15 of each device 9 to 14 are input. The microcomputer 38 controls the relay coils 44b to 50b of the relay switches 44 to 50 to be turned on and off based on these input signals and a control program stored in advance.

Next, the operation of the above configuration will be explained.

With the power switch 35 turned on, each device 9 to
14, when the operation start switch of the device to be used is operated, the motor 40a1 of the cooling fan device 40, the heat source 19,
Motor 22b1 of the heat distribution fan device 22 Electromagnet 24 of the damper 24 of the supply port 23a connected to the equipment used
a is energized. Then, the heat distribution fan device 22 sucks air from the circulation duct 26 or the outside air intake port 35 according to the switching state of the switching damper 234, and blows the air to the heat source 19. This blown air is heated by the heat source 19 to become hot air, and the hot air is supplied into the main body 15 of the device from the supply port 23a through the heat-resistant duct 23, and heats the object to be heated housed within the main body 15. The air supplied into the main body 15 is then exhausted from the outlet 15b.

Air discharged from the outlet 15b flows into the exhaust duct 25 or the return duct 26 depending on the state of the switching damper 28 of the receiving port 27. For example, when the device being used is the warming pot 9 or the toaster 13, the switching dampers 28 and 34 are in the state shown by the two-dot chain lines in FIGS. 8 and 9, and the air discharged from the outlet 15b is flows into the return duct 26 and is returned to the heat source through the fan casing 22a of the heat distribution fan device 22, and so on. In this way, by returning the air discharged from the outlet 15b to the heat source 19 through the return duct 26, thermal efficiency is increased.

3 In addition, when the device being used is the rice cooker 10, oven range 11, roaster 12, or dish dryer 14, smoke may be present in the air discharged from these heating devices.
Since odor or a large amount of steam is contained, the switching dampers 28 and 34 are placed in the state shown in solid lines in FIGS. 8 and 9, and the exhaust fan device 31 is driven. Then, the hot air supplied into the main body 15 is sucked by the exhaust fan device 31 and passed from the outlet 15b to the exhaust duct 2.
5, is purified by the deodorizing/smoking device 30, and is discharged from the front grille 1a. In this case, the front grill 1a
is located at the top of the cabinet 1, so there is no risk of the exhaust air hitting the user. In this way, if the air discharged from the heating equipment is mixed with odor, smoke, or a large amount of steam, the air is removed from the exhaust duct 2.
5 and not supplied to other heating devices, it is possible to prevent problems such as odor from being attached to objects to be heated in other heating devices.

Note that a device that returns exhaust air from the main body 15 to the heat source 19 through the return duct 246 is stored in the memory of the microcomputer 35, and when this device is used, the exhaust air is automatically returned to the return duct 26. Alternatively, a switch may be used to allow the user to select whether the exhausted air is returned to the heat source 19 through the return duct 26 or exhausted through the exhaust duct 25.

Now, the temperature inside the main body 15 of the device in use is the first temperature.
As shown in the flowchart of FIG. 2, it is controlled by opening and closing the damper 24 of the supply port 23a connected to the device. That is, the microcomputer 38
compares the temperature detected by the temperature sensor 51 of the device with the set temperature, closes the damper 24 when the detected temperature becomes higher than the set temperature, and closes the damper 24 when the detected temperature becomes lower than the set temperature.
open. This maintains the temperature inside the main body 15 of the device at a constant temperature.

Furthermore, the amount of heat generated by the heat source 19 is basically switched depending on the number of devices in use and the temperature detected by the temperature sensor of the devices in use.

That is, the microcomputer 38 energizes the four electric heaters 19a to 19d constituting the heat source 19, the number of which corresponds to the number of devices in use.

When the temperature detected by the temperature sensor 47 of the device becomes equal to or higher than the reference temperature, the damper 24 of that device is closed, but the device with the damper 24 closed is considered to be unused, and the number of electric heaters to be energized is set. do.

According to this embodiment, the air heated by one heat source 19 is distributed to each device 9 to 14 through the interheating duct 23, so each device 9 to 14 has its own heat source. Even if it is not provided, it is sufficient to provide only one common heat source 19 for each of the devices 9 to 14, and it can be provided at low cost. Moreover, since the main body 15 of each device 9 to 14 can be configured to be smaller than that provided with a dedicated heat source, the cabinet 1 as a whole can be made relatively small and requires a small installation area.

In this case, since the cooling unit 6 and ready-made fan unit 40 for cooling the relatively heavy heat source 19, the heat distribution fan unit 22, and the control circuit 39 are installed at the bottom of the cabinet 1, the cabinet 1 can be stabilized. Can be installed well. Moreover, since the cooling fan device 40 sucks the lower air which is on the lower temperature side of the indoor air, the cooling effect on the control circuit 39 is enhanced. Further, the doors 12a to 14a of the heating devices 12 to 14 located above the operating part 2, which is provided at the height position that is most easily operated, are of a horizontal opening type that rotates to open around the side edges. Since the doors 9a to 11a of the heating devices 9 to 11 located below the heating devices 2 are of a downward-opening type that opens and rotates around the lower end, all doors can be easily opened and closed.

[Effects of the Invention] As explained above, according to the present invention, the following effects can be obtained.

In the collective heating device according to claim 1, the air heated by the heat source is sent to each heating device via the heat distribution path by the interheating fan device, so that one heat source can be used to connect a plurality of heating devices. It can be used as a common heat source, and there is no need to provide a dedicated heat source for each heating device.

In the collective heating device according to the second aspect of the invention, thermal efficiency is increased by providing a return path for returning the heated air supplied to each heating device to the heat source.

In the collective type heating device according to claim 3, by providing an exhaust path connected to each heating device, when the air discharged from each heating device contains odor, smoke, a large amount of steam, etc., the It is possible to prevent air from being resupplied to the heating equipment.

In the collective heating device according to claim 4, a damper is provided in the supply section that supplies heated air to each heating device, and this damper is opened and closed according to the temperature inside each heating device, so that the temperature of the heating device is increased. Temperature can be easily controlled.

In the collective heating device according to claim 5, the heat source can be controlled to an optimal amount of heat by changing the amount of heat generated by the heat source depending on the number of heating devices being used or the temperature within each heating device. .

In the collective heating device according to claim 6, since the heat source, the interheating fan device, the control means, and the cooling fan device are arranged at the bottom of the 8-cabinet, the overall center of gravity is lowered and can be stably installed. Since the cooling fan device cools the control means by blowing relatively cold air from the lower part of the room, the cooling effect is enhanced.

In the collective type heating device described in claim A, the door of each heating device above the operation part rotates to open and close around the side edge, and the door below rotates to open and close around the bottom edge. By doing so, not only the operability of the operating section but also the operability of opening and closing the door is improved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a vertical side view showing a schematic configuration of the main parts, FIG. 2 is a front view, and FIG. 3 is a front view.
The figure is an exploded cross-sectional view showing the installation and configuration of the heating equipment.
The figure is an enlarged cross-sectional view of the same part, Fig. 5 is a partially enlarged cross-sectional view showing the connection configuration between the heating equipment and each duct, Fig. 6 is an enlarged longitudinal cross-sectional view showing the damper in the heat-resistant duct, and Fig. 7 is an enlarged cross-sectional view of the same part. Fig. 8 is an enlarged cross-sectional plan view showing the switching damper between the exhaust duct and the return duct, and Fig. 9 is the return duct and the heat distribution section. Figure 10 is a schematic overall piping configuration diagram, Figure 11 is a schematic electrical circuit configuration diagram, and Figure 12 is a flowchart showing the details of temperature control. be. In the figure, 1 is a cabinet, 2 is an operating section, 3 to 8 are storage rooms, 9 is a thermal pot (heating device), 10 is a rice cooker (heating device), 11 is an oven range (heating device), 12 is a dish dryer 13 is a toaster (heating device), 1
4 is a roaster (heating device), 9a to 14a are doors, 15 is a main body, 19 is a heat source, 19a to 19d are electric heaters, 22
is a heat distribution fan device, 23 is a heat-resistant duct (heat distribution path), 2
3 is a damper, 23a is a supply port (supply part), 25 is an exhaust duct (exhaust path), 26 is a return duct (return path), 28 is a switching damper, 30 is an exhaust fan device, 30 is a deodorizing/smoke removal device , 31 is an exhaust fan device, 33 is an outside air intake port,
38 is a switching damper, 38 is a microcomputer (control means), 40 is a cooling fan device, and 51 is a temperature sensor. 0 1 Cabinet 9-14 Heating equipment 19 Heat source b Figure 2 Figure 8

Claims (1)

[Scope of Claims] 1. A heat source and a heat distribution fan device are provided in a cabinet housing a plurality of different heating devices, and the air heated by the heat source is distributed through heat distribution paths by the heat distribution fan device. Collective heating equipment configured to feed to heating equipment. 2. The collective heating device according to claim 1, further comprising a return path for returning the heated air supplied to each heating device to the heat source through a heat distribution fan device. 3. The collective type heating device according to claim 1 or 2, characterized in that an exhaust path is provided that connects to each heating device, and the air inside each heating device is sucked and discharged through the exhaust path by an exhaust fan device. 4. A damper is provided in the supply section that supplies heated air to each heating device, and the temperature inside the heating device is controlled by opening and closing this damper according to the temperature inside the heating device using a control means. The collective heating device according to any one of claims 1 to 3. 5. A control means for controlling the calorific value of the heat source is provided, and this control means is configured to change the calorific value of the heat source according to the number of heating devices being used or the temperature within each heating device. The collective heating device according to any one of claims 1 to 4, characterized in that: 6. The heat source, the heat distribution fan device, and the control means are disposed at the bottom of the cabinet, and a cooling fan device is provided that sucks outside air from the front or rear surface of the cabinet to cool the control means. The collective heating device according to claim 4 or 5. 7. The cabinet is equipped with an operation section for selecting the heating device to be used, and the door installed on the front of each heating device is such that the door above the operation section opens and closes around the side edge, and the door below the operation section opens and closes around the side edge. 7. The collective heating device according to claim 1, wherein the heating device rotates to open and close around its lower end.