CN203861041U

CN203861041U - Heating cooking device

Info

Publication number: CN203861041U
Application number: CN201420205432.1U
Authority: CN
Inventors: 西谷久弘
Original assignee: Iris Ohyama Inc
Current assignee: Iris Ohyama Inc
Priority date: 2014-03-06
Filing date: 2014-04-25
Publication date: 2014-10-08
Anticipated expiration: 2024-04-25
Also published as: JP6288832B2; JP2015169369A

Abstract

The utility model provides a heating cooking device which is provided with a heating unit, a door opening and closing switch, a timer unit, and a power supply socket. The heating unit is used for heating cooked food in a heating chamber. The door opening and closing switch is turned on and off by opening and closing a door of the heating chamber. The timer unit is used for setting heating time of the heating unit. The power supply socket supplies power to the heating unit. According to the heating cooking device, a lead supplying the power from the door opening and closing switch to the timer unit and a lead supplying the power from the timer unit to the heating unit are respectively connected to the same terminal of the timer unit, in this way, when a timer motor is not powered on, the heating unit is not powered on either, and therefore the safety can be ensured.

Description

Heating device

Technical field

The utility model relates to heating device, for example, possess the heating device of magnetron or heater.

Background technology

Before, in heating device, for the food being accommodated in heating chamber, utilize cooking mode that microwave (high frequency) carries out, the electric heater of take is together widely adopted with other mode of heatings as the cooking method etc. of scorching that heating source utilizes that radiant heat carries out, and spread to general family.In addition, in general, in the heater of micro-wave oven or electric oven etc., mostly the setting of heat time is to adopt timer motor.

Patent documentation 1: No. 2526859 communique of Japanese Utility Model registration

Cooking device described in patent documentation 1, is provided with magnetron and heater, and is provided with timer, and this timer has time adjustment axle, output transaxle and timer motor; And be provided with output switch, this output switch has a plurality of lead-out terminals that operate to change the output ratio in the scheduled time by output transaxle.And connecting magnetron and heater on each lead-out terminal of output switch, this output switch, according to setting out output conversion time by output transaxle, is changed driving by timer motor.Therefore, can easily to add arbitrarily heating power, carry out the compound cooking of magnetron and heater, thereby be easy to reduce manufacturing cost.

Above-mentioned cooking device, as shown in Figure 9, timer motor 101 is connecting power supply via timer switch 100, is being connected magnetron 103 and heater 104 simultaneously via timer switch 100 with output switch 102.One side's of output switch 102 lead-out terminal occurs connecting magnetron 103 with power transformer 105 via high frequency, and the opposing party's of output switch 102 lead-out terminal is connecting heater 104.

When reality forms described circuit in cooking device, use the connector that is inserted with terminal in ambroin shell, this terminal compression joint energising lead-in wire (electric wire) and is installed.This connector is inserted into timer motor or high frequency and fin (tab) terminal of using with power transformer feed occurs and connect.

For the wiring to timer switch side supply power, the energising lead-in wire that is inserted into a side of the socket plug on power supply is connected with the fin terminal of timer switch via connector, and the opposing party's lead-in wire occurs to be connected side by side with power transformer 105 with timer motor 101, heater 104 and high frequency respectively via connector.

Carry out in the situation of this wiring, when the connector that the energising lead-in wire with from described socket plug is connected is inserted into the fin terminal of timer motor 101, because of insertion force deficiency access failure in the situation that, because high frequency occurs to go between and to be connected side by side via connector and a side energising from being inserted into the socket plug of power supply with power transformer 105, therefore, one connects timer switch 100, will occur, with power transformer 105 feeds, to start magnetron to high frequency.But owing to timer motor 101 not being carried out to feed, so time limit control is inoperative, makes magnetron 103 direct acting continuously.As a result, cause to be heated gratin and to be subject to long heating, having smolders even causes the danger of burning with anger.

Utility model content

The utility model is made in view of this problem, and object is: provide a kind of and can not smolder or the heating device of the safety of burning with anger because of long-time heating.Specifically, its object is: provide a kind of and be connected not exclusively with the connector of timer motor at energising lead-in wire, or energising lead-in wire is not exclusively fixing with connector, cause in the situation that timer motor is failure to actuate, even if timer switch is connected, can there is not the heating device by the safety of power transformer or heater energising to the high frequency that makes magnetron action yet.

To achieve these goals, heating device of the present utility model possesses: to the heating unit that thing heats that is cooked in heating clamber; By heating clamber door switching switch on and off door on-off switch; Set the timer units of the heat time of heating unit; And supply with plug to the power supply of heating unit power supply; Described heating device is characterised in that: described power supply is supplied with to side's lead-in wire that plug and described heating unit switch on and be connected in described timer units; The opposing party's lead-in wire is connected in an on-off switch, and is connected with described heating unit via described timer units.

Heating device of the present utility model, is characterized in that: by the lead-in wire of the lead-in wire of the energising from door on-off switch to timer units and the energising from timer units to heating unit, be connected to the same terminal of timer units.

In addition, heating device of the present utility model, is characterized in that: heating unit is thermatron or thermoelectric heater.

The effect of utility model

According to the utility model, can provide not can because long-time heating is heated, gratin be smoldered or the heating device of the safety of burning with anger etc.That is to say, can provide: at energising lead-in wire, be connected not exclusively with the connector of timer motor, or energising lead-in wire is not exclusively fixing with connector, cause in the situation that timer motor is failure to actuate, even if timer switch is connected, can there is not the heating device by the safety of power transformer or heater energising to the high frequency that makes magnetron action yet.

Accompanying drawing explanation

Fig. 1 is the stereogram of the state that takes off of the cover by end face and side of the heating device of embodiment of the present utility model.

Fig. 2 is the circuit diagram of the heating device of embodiment of the present utility model.

Fig. 3 is the wiring diagram of the reference example of heating device.

Fig. 4 is the wiring diagram for the problem shown in Fig. 3 of heating device is illustrated.

Fig. 5 is the wiring diagram for the problem shown in Fig. 3 of heating device is illustrated.

Fig. 6 is the wiring diagram of the heating device of embodiment of the present utility model.

Fig. 7 is the wiring diagram for embodiment of the present utility model is illustrated.

Fig. 8 is the wiring diagram for another embodiment of the present utility model is illustrated.

Fig. 9 is the circuit diagram of existing scheme that possesses the heating device of timer motor and high frequency generating apparatus.

Label declaration

1: heating device

2: housing

3: heating clamber

4: door

5: magnetron

6: high frequency power transformer

7: timer

8: cooling fan

9: fan electromotor

11: socket plug

12: timer switch

13: timer motor

14: door on-off switch

The specific embodiment

Under regard to and meet embodiment of the present utility model limit and describe referring to accompanying drawing limit.But present embodiment is an example only, is not limited.

Fig. 1 is the whole skeleton diagram of the heating device 1 of a kind of embodiment of the present utility model.The inside of housing 2 is provided with the heating clamber that is box-shaped 3 of open at its front, hollow, and its front openings portion is provided with the door 4 opening and closing rotationally.In addition, also have: with the magnetron (radio-frequency generator) 5 of heating clamber 3 combinations; The high frequency that starts described magnetron occurs with power transformer 6; Set the timer 7 of heat time; Cooling fan 8; And fan electromotor 9.

Fig. 2 is the circuit diagram of heating device.Timer switch 12, timer motor 13 and high frequency that one side's of the socket plug 11 (power supply supply plug) of inserting to power supply energising lead-in wire is connected to timer 7 occur with power transformer 6.The opposing party's energising lead-in wire is connected to the door on-off switch 14, timer motor 13 and the high frequency that when door 4 is opened, input current are disconnected and when door is closed, input current is connected and occurs with power transformer 6.

Under regard to each several part action be illustrated.The door of closing heating device 1 as user is 4 time, and the contact of door on-off switch 14 becomes on-state.If then set the heat time and time of rotating timer 7 is set output shaft, the contact of timer switch 12 becomes on-state, to the high frequency being connected in series with this timer switch 12, occurs to switch on power transformer.Meanwhile, because timer motor 13 is also connected in series with described timer switch 12 and a door on-off switch 14, therefore energising, the action by timer motor 13 consumes setting-up time originally.If setting-up time finishes, the contact of timer switch 12 disconnects.

Then utilize Fig. 3 to be illustrated the practical wiring of the circuit diagram shown in Fig. 2 (reference example).In figure, white bight is divided into fin terminal, and black corners is partly connector, and connector is fixed on the two ends of lead-in wire (electric wire) 15,16,17,18,19, and these connectors are connected with the fin terminal of each electric component.The connector 15a that is fixed on one end of lead-in wire 15 is connected to the fin terminal 11a of socket plug 11, at the other end, connector 15b is connected in to the fin terminal 7a of timer 7.Similarly, the fin terminal 7b of timer 7 and high frequency occur with being connected by go between 16 connector 16a, 16b between the fin terminal 6a of power transformer 6.

Between the fin terminal 14a of the opposing party's of socket plug 11 fin terminal 11b and door on-off switch 14, by the connector 17a, the 17b that are fixed on lead-in wire 17, connected.From the fin terminal 14b of door on-off switch 14, the lead-in wire 19 being connected by fin terminal 13a to timer motor 13 with high frequency occur lead-in wire that the fin terminal 6b with power transformer 6 is connected 18 these two connect up.

The in the situation that of such wiring, when the connection of the fin terminal of connector 19a, the 19b of from the lead-in wire 19 to timer motor 13 feeds is incomplete, or during to the energising lead-in wire of bonder terminal fixing incomplete, there will be following problem.

The door of closing heating device 1 as user is 4 time, and the contact of door on-off switch 14 becomes on-state.If then set the heat time and rotate the output shaft of timer 7, the contact of timer switch 12 becomes on-state, to the high frequency being connected in series with this timer switch 12, occurs to switch on power transformer.But as shown in Figure 4, if a side's of the lead-in wire 19 that should be connected on the fin terminal 13a of the timer motor 13 being connected in series with door on-off switch 14 connector 19a departs from,, not to 13 energisings of timer motor, therefore just do not consume the action of setting-up time originally.Therefore, the high frequency that starts magnetron 5 occurs can not disconnect with the feed of power transformer 6, and magnetron 5 is with regard to a direct acting.As a result, be heated gratin by long-time heating, have and smolder, even cause the danger of burning with anger.

As shown in Figure 5, in the situation that the connector 19b of lead-in wire 19 is not connected on the fin terminal 14b of an on-off switch 14 reliably, occur and above-mentioned same phenomenon, timer motor 13 is not energized and occurs, with power transformer 6 feeds, therefore to make magnetron 5 one direct actings to high frequency yet.

Fig. 6 shows wiring diagram of the present utility model.Catch up with and state wiring difference and be: connector 18a and the connector 19a that are connected with fin terminal 13a timer motor 13 sides 19 that go between that the fin terminal 14b original and door on-off switch 14 of lead-in wire 18 was connected, be connected to respectively fin terminal 13a.Namely, on the fin terminal 13a of timer motor 13, connecting two sides' lead-in wire 18 and one end of 19.

As shown in Figure 7, by the change of above-mentioned wiring, when being fixed wtih the connector 19a of a lead-in wire side's of 19 end and not being connected with the fin terminal 13a of motor coil 13, or during because of lead-in wire end and the fixing not exclusively not conducting of connector 19a, not to timer motor 13 feeds, timer motor is failure to actuate, and also to high frequency, do not occur with power transformer 6 feeds in addition, so magnetron 5 is also failure to actuate.

Similarly, as shown in Figure 8, when lead-in wire the opposing party's of 19 connector 19b is not connected with the fin terminal 14b of door on-off switch 14, also to timer motor 13 and high frequency, do not occur with power transformer 6 feeds, magnetron 5 is failure to actuate, so can guarantee safety.

Present embodiment is that to use the microwave cooked micro-wave oven that is heated product be that example is illustrated.Even but the high frequency that starts magnetron 5 is occurred to replace with electric heater, make electric heater move to carry out the situation of the baking oven of cooking with power transformer 6, also can prevent that connector because of the lead-in wire being connected with timer motor 13 comes off and problem that electric heater is not disconnected.

Claims

1. a heating device, wherein possesses: to the heating unit that thing heats that is cooked in heating clamber; By described heating clamber door switching switch on and off door on-off switch; Set the timer units of the heat time of described heating unit; And supply with plug to the power supply of described heating unit power supply; Described heating device is characterised in that:

Described power supply is supplied with to side's lead-in wire that plug and described heating unit switch on and be connected in described timer units; The opposing party's lead-in wire is connected in an on-off switch, and is connected with described heating unit via described timer units.

2. heating device as claimed in claim 1, is characterized in that:

By the lead-in wire from described door on-off switch to described timer units energising and the lead-in wire from described timer units to described heating unit energising, be connected to the same terminal of described timer units.

3. heating device as claimed in claim 1 or 2, is characterized in that:

Described heating unit is thermatron or thermoelectric heater.