JP7345426B2 - Door opening/closing detection unit and heating cooker - Google Patents

Description

The present disclosure relates to a door opening/closing detection unit that detects opening/closing of a door and a cooking device.

Conventionally, in cooking devices that use microwaves to heat the objects in the heating chamber, multiple switches are used to detect the opening and closing of the heating chamber door in order to ensure safety during use. It has been known. For example, in Patent Document 1, a heating device is equipped with a latch switch and a door switch for detecting that the door of the heating cabinet is opened and cutting off the power supply, and a short switch that cuts off a fuse when these switches do not function. A cooker is disclosed.

Patent No. 3303385

In the heating cooker described in Patent Document 1, in order to shift the detection timing of the latch switch and the short switch, a lever part and a slide part of different shapes are provided for each switch, and the structure is complicated and the parts There were many types of.

The present disclosure solves the above-mentioned problems, and aims to provide a door opening/closing detection unit and a heating cooker that have a simple structure with a small number of parts and have the necessary functions.

A door opening/closing detection unit according to the present disclosure includes a base member, a contact member that slides in response to opening and closing of the door, an elastic body that pushes the contact member toward the door, and at least two switches, The member has a switch attachment part to which at least two switches are attached, and a groove-shaped abutment member attachment part to which an abutment member is attached, and the at least two switches have a latch for stopping the supply of power. The contact member includes at least two of a switch, a short switch functioning as a safety device, and a monitor switch for transmitting a door opening/closing detection signal, and the contact member presses the actuator of the at least two switches. and a second pressing part, the abutting member slides along the abutting member mounting part, and the at least two switches are attached to the base member such that the actuators protrude downward, and the abutting member slides along the abutting member mounting part. The first pressing portion and the second pressing portion of the member press the actuator from below to above .

According to the door opening/closing detection unit of the present disclosure, by having a configuration in which the actuators of at least two switches are pressed by the first pressing part and the second pressing part of the contact member, a simple structure with fewer types of parts is required. It is possible to realize various functions.

1 is a perspective view of a heating cooker according to Embodiment 1. FIG. 1 is a perspective view of a heating cooker according to Embodiment 1. FIG. 1 is a top view of the heating cooker according to Embodiment 1. FIG. 4 is a schematic cross-sectional view taken along line AA in FIG. 3. FIG. FIG. 2 is a right perspective view of the door opening/closing detection unit according to the first embodiment. FIG. 2 is a left perspective view of the door opening/closing detection unit according to the first embodiment. It is a right side surface of the door opening/closing detection unit according to Embodiment 1. FIG. 3 is a rear view of the door opening/closing detection unit according to the first embodiment. It is a left side surface of the door opening/closing detection unit according to Embodiment 1. FIG. 2 is an exploded perspective view of the door opening/closing detection unit according to the first embodiment. FIG. 3 is a perspective view of a contact member of the door opening/closing detection unit according to the first embodiment. FIG. 3 is a diagram illustrating attachment of the abutting member to the base member according to the first embodiment. FIG. 2 is a schematic cross-sectional view of the heating cooker according to Embodiment 1 in a state where the door is closed. FIG. 3 is a right side view of the door opening/closing detection unit when the door of the cooking device according to Embodiment 1 is closed. FIG. 2 is a left side view of the door opening/closing detection unit when the door of the cooking device according to Embodiment 1 is closed. FIG. 2 is a schematic cross-sectional view of the heating cooker according to Embodiment 1 with the door open.

Hereinafter, a door opening/closing detection unit and a heating cooker according to the present disclosure will be described with reference to the drawings. The door opening/closing detection unit and heating cooker shown in the drawings are merely examples, and the devices to which the present disclosure is applied are not limited by the drawings. In addition, in the following explanation, terms indicating directions (for example, "upper", "lower", "right", "left", "front", "rear", etc.) are used as appropriate to facilitate understanding. These are for illustrative purposes only. Furthermore, in each figure, the same reference numerals are the same or equivalent, and this is common throughout the entire specification.

Embodiment 1.
1 and 2 are perspective views of a heating cooker 100 according to the first embodiment. FIG. 1 shows a state in which the door 50 of the heating storage 5 is closed, and FIG. 2 shows a state in which the door 50 of the heating storage 5 is opened. The heating cooker 100 of this embodiment is a built-in IH cooking heater that is used by being fitted into an installation opening provided in kitchen furniture, for example. As shown in FIG. 1, the heating cooker 100 includes an upper unit 1 and a lower unit 2, which are stacked one above the other and are combined and integrated. At this time, the upper unit 1 is placed on the lower unit 2.

The upper unit 1 includes a box-shaped upper case 10 (FIG. 4) with an open upper surface, and a flat top plate 11 provided so as to cover the opening on the upper surface of the upper case 10. The upper case 10 is made of sheet metal. The top plate 11 is made of a non-magnetic material such as heat-resistant glass. An exhaust port 4 for exhausting air from the cooking device 100 is provided at the rear of the top plate 11. The exhaust port 4 is provided with a breathable cover to prevent dust or foreign matter from entering the upper case 10.

The lower unit 2 includes a box-shaped lower case 20 with an open top and front surface. The lower case 20 is composed of a plurality of sheet metals. The opening on the upper surface of the lower unit 2 is larger than the outer periphery of the lower part of the upper case 10, and when the upper unit 1 and the lower unit 2 are combined, the upper case 10 of the upper unit 1 is inserted into the opening on the upper surface of the lower unit 2. is inserted.

As shown in FIG. 2, inside the lower unit 2, a heating chamber 5 with an open front is provided. Further, a door 50 is provided on the front surface of the lower unit 2 to cover the front opening of the heating chamber 5 in a freely openable and closable manner. The door 50 is rotatably supported by the lower case 20, a hinge (not shown), and an arm 51. Thereby, the door 50 is configured to open forward using the lower end as a fulcrum (rotation center). Further, a handle 52 is provided on the upper part of the door 50, and by grasping the handle 52 and opening the door 50, the object to be heated can be taken in and out of the heating warehouse 5 from the front.

As shown in FIG. 2, a first protrusion 53a and a second protrusion 53b are provided on the surface of the door 50 facing the heating chamber 5, which press a door opening/closing detection unit 7, which will be described later, when the door 50 is closed. It is provided. Further, the area around the opening of the heating chamber 5 with the door 50 open is covered with an exterior plate 54. The exterior plate 54 is provided with a hole 55 into which the first protrusion 53a and the second protrusion 53b are inserted when the door 50 is closed. Note that the shape of the hole 55 is not limited, and may be round or rectangular, and may be selected as appropriate.

FIG. 3 is a top view of the heating cooker 100 according to the first embodiment. As shown in FIG. 3, two heating ports 30 are provided on the upper surface of the top plate 11. The heating port 30 indicates an area where a cooking container such as a pot or a frying pan is placed. A heating coil 3 is provided below the heating port 30 (see FIG. 4). Further, an operation display section 12 is provided at the front part of the top plate 11. The operation display section 12 includes an operation section for operating the heating in the heating coil 3 and the heating chamber 5, and a display section for displaying the contents set by the operation section and the heating status in the heating coil 3 and the heating chamber 5. .

Next, the internal configuration of the cooking device 100 will be explained. FIG. 4 is a schematic cross-sectional view taken along line AA in FIG. As shown in FIG. 4, inside the upper unit 1 and below the heating port 30 of the top plate 11, a circular heating coil 3 made of a conductive wire such as a copper wire or an aluminum wire is provided. There is. The heating coil 3 generates a high frequency magnetic field by being supplied with a high frequency current. As a result, the cooking container placed on the heating port 30 is heated by induction. Note that an electric heater (for example, a nichrome wire, a halogen heater, a radiant heater, etc.) may be provided below either or both of the two heating ports 30 instead of the heating coil 3. Further, the number of heating ports 30 and heating coils 3 is not limited to two, and may be one or three or more.

An upper control unit 31 is provided below the heating coil 3 . The upper control unit 31 includes an inverter circuit that supplies high-frequency power to the heating coil 3, a control circuit that controls the inverter circuit, an aluminum heat sink, and the like.

A heating chamber 5 is provided below the heating coil 3 and inside the lower unit 2 (see FIG. 2). Furthermore, inside the lower unit 2 and outside the heating chamber 5, a microwave heating device 6 is provided that heats an object to be heated in a cooking container accommodated in the heating chamber 5. The microwave heating device 6 includes an antenna that emits microwaves into the heating chamber 5 from the rear, a microwave generator that generates microwaves, and a waveguide that guides the microwaves to the antenna. In addition to the microwave heating device 6, plate-shaped heaters may be provided above and below the heating chamber 5.

A lower control unit 61 is provided behind the microwave heating device 6. The lower control unit 61 includes a power supply circuit that supplies power to each part of the microwave heating device 6, a control circuit that controls heating by the microwave heating device 6, and the like. Further, the lower control unit 61 is electrically connected to a door opening/closing detection unit 7, which will be described later.

A door opening/closing detection unit 7 for detecting opening/closing of the door 50 is provided behind the exterior plate 54 of the lower unit 2. The door opening/closing detection unit 7 detects opening/closing of the door 50 by contacting and non-contacting the first protrusion 53a and the second protrusion 53b of the door 50. The door opening/closing detection unit 7 of this embodiment will be described with reference to FIGS. 5 to 9. FIG. 5 is a right perspective view of the door opening/closing detection unit 7 according to the first embodiment. FIG. 6 is a left perspective view of the door opening/closing detection unit 7 according to the first embodiment. FIG. 7 is a right side view of the door opening/closing detection unit 7 according to the first embodiment. FIG. 8 is a rear view of the door opening/closing detection unit 7 according to the first embodiment. FIG. 9 is a left side view of the door opening/closing detection unit 7 according to the first embodiment.

As shown in FIGS. 5 to 9, the door opening/closing detection unit 7 includes a latch switch 71, a short switch 72, and a monitor switch 73. The latch switch 71, the short switch 72, and the monitor switch 73 are microswitches and are electrically connected to the lower control unit 61.

The latch switch 71 is a switch for stopping the power supply from the power circuit of the lower control unit 61. When the latch switch 71 is ON, power is supplied to the microwave heating device 6, and when the latch switch 71 is OFF, the power supply to the microwave heating device 6 is stopped.

The short switch 72 is a switch for cutting off the fuse of the power circuit of the lower control unit 61 as a safety device. Contrary to the latch switch 71, the short switch 72 is turned off when the latch switch 71 is turned on, and turned on when the latch switch 71 is turned off. The short switch 72 can stop the power supply even if the contacts of the latch switch 71 are welded and cannot be switched.

The monitor switch 73 is a switch for transmitting an opening/closing detection signal of the door 50 to the lower control unit 61. The monitor switch 73 transmits an OFF signal when the door 50 is open, and an ON signal when the door 50 is closed.

The door opening/closing detection unit 7 includes a base member 74 to which a latch switch 71, a short switch 72, and a monitor switch 73 are attached. Further, the door opening/closing detection unit 7 includes abutment members 75a and 75b that slide in the front-back direction in response to opening and closing of the door 50 and turn on/off the latch switch 71, the short switch 72, and the monitor switch 73. Further, the door opening/closing detection unit 7 includes elastic bodies 76a and 76b made of coil springs that push the contact members 75a and 75b toward the door 50, respectively.

As shown in FIGS. 5 to 9, the latch switch 71 and the short switch 72 are attached to the right side of the base member 74, and the monitor switch 73 is attached to the left side of the base member 74. Further, the latch switch 71 is installed above the short switch 72, and the monitor switch 73 is installed at the same height as the short switch 72. Further, as shown in FIGS. 7 and 9, the latch switch 71, the short switch 72, and the monitor switch 73 are attached to a base member 74 so that actuators 71a, 72a, and 73a for operating each switch protrude downward, respectively. It will be done. This makes it difficult for foreign matter to enter the switch through the gaps between the actuators 71a, 72a, and 73a, making it possible to suppress poor contact between the contacts.

The contact members 75a and 75b are pushed toward the door 50 by elastic bodies 76a and 76b. Therefore, in the closed state of the door 50, the door 50 is pushed in the opening direction by the contact members 75a and 75b. Here, since the axis when the door 50 opens is placed on the lower side of the door 50, two switches are provided on the axis side (lower side), and two switches are provided on the side opposite to the axis (upper side) from the axis side. By providing one switch with fewer switches, the repulsive force in the closing direction of the door 50 can be reduced.

Latch switch 71 is connected to lower control unit 61 by connector 710 and wiring 711. Short switch 72 is connected to lower control unit 61 through connector 720 and wiring 721. Monitor switch 73 is connected to lower control unit 61 through connector 730 and wiring 731.

As shown in FIGS. 5 and 7, the wiring 721 of the short switch 72 is held by a hook 745 of the base member 74 and routed together with the wiring 711 of the latch switch 71. On the other hand, the wiring 731 of the monitor switch 73 is routed separately from the wiring 711 of the latch switch 71 and the wiring 721 of the short switch 72. In this way, by separating the routing of the wiring 711 and wiring 721, which are high-voltage power supply lines, and the wiring 731, which is a low-voltage signal line, generation of noise in the signal flowing through the wiring 731 can be suppressed. Further, by arranging the latch switch 71 and the short switch 72 on the same side (right side) of the base member 74, wiring can be easily routed.

Further, the length of the wiring 711 of the latch switch 71 is shorter than the length of the wiring 721 of the short switch 72. This prevents incorrect wiring to the latch switch 71 and short switch 72. Specifically, if the connector 720 is incorrectly connected to the latch switch 71 first, the connector 710 cannot reach the short switch 72 because the wiring 711 is short, and it can be recognized that the connection is incorrect. Further, if the connector 710 is incorrectly connected to the short switch 72 first, the wiring 721 is long, so when connecting the connector 720 to the latch switch 71, there is an excess of the wiring 721, and it can be recognized that the connection is incorrect. Note that in order to prevent incorrect wiring, the length of the wiring 711 and the length of the wiring 721 may be made different, and the length of the wiring 711 may be made longer than the length of the wiring 721.

The abutting member 75a is arranged below the latch switch 71, and the latch switch 71 is turned on/off by the abutting member 75a. The abutting member 75b is arranged below the short switch 72 and the monitor switch 73, and the abutting member 75b turns the short switch 72 and the monitor switch 73 ON/OFF.

FIG. 10 is an exploded perspective view of the door opening/closing detection unit 7 according to the first embodiment. In FIG. 10, illustration of each switch is omitted. As shown in FIG. 10, the base member 74 includes a switch mounting portion 741, a contact member mounting portion 742, an elastic body receiving portion 743, and a hook 745. Two switch attachment parts 741 are provided on the right side surface and one on the left side surface, and the latch switch 71, short switch 72, and monitor switch 73 are respectively attached thereto.

The abutting member attachment portions 742 are provided at two locations on the right side surface of the base member 74 in parallel in the vertical direction. The contact member mounting portion 742 has a groove shape that is open on the right side and extends in the horizontal direction. An opening 742a is provided in front of the abutting member mounting portion 742, in which abutting surfaces 751 (FIG. 11) of the abutting members 75a and 75b are arranged. The first protrusion 53a and the second protrusion 53b of the door 50 press against the contact surfaces 751 of the contact members 75a and 75b through the opening 742a. Furthermore, a claw portion 742b is provided at the rear of the opening 742a to prevent the contact members 75a and 75b from falling off and to regulate the sliding direction of the contact members 75a and 75b. The contact members 75a and 75b are fitted into the contact member attachment portion 742 of the base member 74, and slide along the wall portion forming the contact member attachment portion 742 in a substantially horizontal direction.

The elastic body receiving portion 743 is provided within the abutting member attachment portion 742. The elastic body receiving portion 743 includes a protrusion inserted into the rear ends of the elastic bodies 76a and 76b, and a wall that abuts the rear ends of the elastic bodies 76a and 76b.

With reference to FIG. 11, the contact members 75a and 75b will be described. The abutting member 75a and the abutting member 75b have the same shape. Below, the structure of the contact member 75b will be described as a representative of these. FIG. 11 is a perspective view of the contact member 75b of the door opening/closing detection unit 7 according to the first embodiment. FIG. 11(a) is a front perspective view of the abutting member 75b, and FIG. 11(b) is a rear perspective view of the abutting member 75b.

As shown in FIGS. 11(a) and 11(b), a contact surface 751 is provided on the front surface of the contact member 75b, with which the first convex portion 53a or the second convex portion 53b of the door 50 abuts. At the rear of the contact surface 751, an elastic body receiving portion 752 is provided, with which the front end of the elastic body 76b comes into contact. The elastic body receiving portion 752 includes a protrusion inserted into the front end of the elastic body 76b and a wall that comes into contact with the front end of the elastic body 76b. An opening 753 in which the elastic body 76b is arranged is provided at the rear of the elastic body receiving portion 752 and at the center of the abutment member 75b. When the contact member 75b is attached to the base member 74, the elastic body receiving portion 743 of the base member 74 protrudes from the opening 753. Thereby, the elastic body receiving parts 752 and 743 are arranged at both ends of the opening 753. The elastic body 76b is disposed in the opening 753 of the abutting member 75b, and is held by the elastic body receiving portion 752 of the abutting member 75b and the elastic body receiving portion 743 of the base member 74. By arranging the elastic body 76b inside the abutment member 75b in this way, space can be used effectively and the door opening/closing detection unit 7 can be downsized.

A first pressing portion 754 and a second pressing portion 755 are provided on the upper surface of the abutting member 75b in parallel in the left-right direction. The first pressing portion 754 and the second pressing portion 755 are tapered surfaces formed on the upper surface of the abutting member 75a. By providing the first pressing portion 754 and the second pressing portion 755, the actuator 72a of the short switch 72 and the actuator 73a of the monitor switch 73 can be pressed by one contact member 75b. Further, the first pressing portion 754 and the second pressing portion 755 are provided at different positions in the sliding direction of the abutting member 75b. Thereby, it is also possible to shift the ON/OFF timings of the short switch 72 and the monitor switch 73. In the example of FIG. 11, the first pressing part 754 is provided at the rear of the second pressing part 755, so when the door 50 is opened, the monitor switch 73 is turned OFF before the short switch 72 is turned ON. Become.

Note that in the contact member 75a, the actuator 71a of the latch switch 71 is pressed by the first pressing portion 754. Further, since the door 50 is opened and closed by rotating around the lower end, when the door 50 is opened, the abutment member 75a slides forward before the abutment member 75b. As a result, in the door opening/closing detection unit 7 as a whole, when the door 50 is opened, the latch switch 71 and the monitor switch 73 are first turned OFF almost simultaneously, and then the short switch 72 is turned ON.

A chamfered portion 756 is provided on the base member 74 side of the end of the contact member 75b opposite to the contact surface 751. FIG. 12 is a diagram illustrating attachment of contact members 75a and 75b to base member 74 according to the first embodiment. As shown in FIG. 12, the contact members 75a and 75b are fitted into the contact member mounting portion 742 of the base member 74 from the end opposite to the contact surface 751. Therefore, by providing the chamfered portion 756 on the base member 74 side at the rear end of the abutment member 75a, interference with the base member 74 is reduced, and the abutment member 75a can be fitted smoothly. This improves the ease of assembling the door opening/closing detection unit 7.

Next, the operation of the door opening/closing detection unit 7 will be explained. FIG. 13 is a schematic cross-sectional view of the cooking device 100 according to the first embodiment with the door 50 closed. FIG. 13 is a partially enlarged view of a cross section at a position corresponding to the AA cross section in FIG. FIG. 14 is a right side view of the door opening/closing detection unit 7 when the door 50 of the cooking device 100 according to the first embodiment is closed, and FIG. 15 is a right side view of the door opening/closing detection unit 7 of the cooking device 100 according to the first embodiment. FIG. 7 is a left side view of the door opening/closing detection unit 7 when the door 50 is closed.

As shown in FIG. 13, when the door 50 is closed, the first protrusion 53a and the second protrusion 53b of the door 50 push the contact members 75a and 75b of the door opening/closing detection unit 7 backward. As a result, as shown in FIGS. 14 and 15, the actuators 71a, 72a and 72a of the latch switch 71, short switch 72, and monitor switch 73 are 73a is pushed upward. As a result, the latch switch 71 and monitor switch 73 are turned on, and the short switch 72 is turned off.

FIG. 16 is a schematic cross-sectional view of the cooking device 100 according to the first embodiment with the door 50 open. FIG. 16 is a partially enlarged view of a cross section at a position corresponding to the AA cross section in FIG. Note that the right side view of the door opening/closing detection unit 7 when the door 50 of the heating cooker 100 is open is the same as FIG. The left side view of is the same as FIG.

As shown in FIG. 16, when the door 50 is opened, the first convex portion 53a and the second convex portion 53b of the door 50 are separated from the abutting members 75a and 75b of the door opening/closing detection unit 7, and the abutting members 75a and 75b are separated from each other. 75b is pushed forward by the elastic body 76b. As a result, the actuators 71a, 72a, and 73a of the latch switch 71, the short switch 72, and the monitor switch 73 are released from the pressure of the first pressing section 754 and the second pressing section 755. As a result, the latch switch 71 and monitor switch 73 are turned off, and the short switch 72 is turned on. Further, when the door 50 is opened from the closed state, first the first protrusion 53a separates from the contact member 75a, and then the second protrusion 53b separates from the contact member 75b. As a result, as described above, first the latch switch 71 and the monitor switch 73 are turned off almost simultaneously, and then the short switch 72 is turned on.

As described above, in the door opening/closing detection unit 7 of the heating cooker 100 of the first embodiment, the two pressing parts (the first pressing part 754 and the second pressing part 755) are provided on the contact members 75a and 75b. Two switches can be turned on and off by sliding one contact member. Thereby, the types of parts of the door opening/closing detection unit 7 can be reduced, and a simple structure can be realized. Further, by using the two contact members 75a and 75b as a common part, the number of parts can be reduced, manufacturing costs such as mold costs and management costs can be suppressed, and ease of assembly is improved. In this embodiment, two types of molds may be used for the door opening/closing detection unit 7: the base member 74 and the abutting member 75a.

Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and can be variously modified without departing from the gist of the present disclosure. For example, the heating cooker 100 is not limited to a built-in type, and may be a stationary type or a portable type. Moreover, the heating cooker 100 may not include the upper unit 1 but only the lower unit 2 including the heating chamber 5.

Further, the elastic bodies 76a and 76b are not limited to coil springs, but may be any other type as long as they have the function of pushing the contact members 75a and 75b toward the door 50. For example, the elastic bodies 76a and 76b may be leaf springs, or elastic ribs may be formed on the base member 74 to push the contact members 75a and 75b toward the door 50.

Furthermore, in the embodiment described above, by shifting the positions of the first pressing part 754 and the second pressing part 755 in the front-back direction, the ON/OFF timing of the switch, that is, the timing of detecting the opening/closing of the door 50 is changed. However, it is not limited to this. For example, by making the angles of the tapered surfaces of the first pressing part 754 and the second pressing part 755 different, the detection timing can be made different. Alternatively, the first pressing section 754 and the second pressing section 755 may be provided at the same position and the detection timing may be the same. Further, the first pressing portion 754 and the second pressing portion 755 are not limited to tapered surfaces, but may be curved surfaces.

Further, in the above embodiment, the contact members 75a and 75b are configured to slide substantially horizontally, but the present invention is not limited to this. For example, the groove-shaped abutting member mounting portion 742 in the base member 74 may be formed to be inclined with respect to the horizontal direction, and the abutting members 75a and 75b may be slid obliquely.

Further, in the above embodiment, the configuration is such that three switches are provided, but the door opening/closing detection unit 7 may be configured as long as it is provided with two or more switches. For example, by increasing the number of abutting members 75a, or by widening the width of the abutting members 75a and increasing the number of pressing parts, it is possible to correspond to a plurality of switches. Further, the number of abutting members may be one.

Further, in the above embodiment, one switch is placed at the top and two switches are placed at the bottom of the door opening/closing detection unit 7, but two switches may be placed at the top and one at the bottom. Furthermore, the detection timings of all three switches may be shifted.

1 Upper unit, 2 Lower unit, 3 Heating coil, 4 Exhaust port, 5 Heating chamber, 6 Microwave heating device, 7 Door opening/closing detection unit, 10 Upper case, 11 Top plate, 12 Operation display section, 20 Lower case, 30 heating port, 31 upper control unit, 50 door, 51 arm, 52 handle, 53a first protrusion, 53b second protrusion, 54 exterior plate, 55 hole, 61 lower control unit, 71 latch switch, 71a, 72a, 73a Actuator, 72 Short switch, 73 Monitor switch, 74 Base member, 75a, 75b Contact member, 76a, 76b Elastic body, 100 Cooker, 710, 720, 730 Connector, 711, 721, 731 Wiring, 741 Switch mounting part , 742 contact member attachment part, 742a opening, 742b claw part, 743 elastic body receiving part, 745 hook, 751 contact surface, 752 elastic body receiving part, 753 opening, 754 first pressing part, 755 second pressing part, 756 Chamfered section.

Claims (9)

a base member;
a contact member that slides as the door opens and closes;
an elastic body that pushes the contact member toward the door;
at least two switches;
The base member is
a switch mounting part to which the at least two switches are mounted;
a groove-shaped abutment member attachment portion to which the abutment member is attached;
The at least two switches include at least any two of a latch switch for stopping the supply of power, a short switch functioning as a safety device, and a monitor switch for transmitting an opening/closing detection signal of the door. ,
The contact member has a first pressing portion and a second pressing portion that press actuators of the at least two switches,
The abutment member slides along the abutment member mounting portion ,
the at least two switches are attached to the base member so that the actuators protrude downward;
In the door opening/closing detection unit, the first pressing portion and the second pressing portion of the contact member push the actuator from below to above . The door opening/closing detection unit according to claim 1, wherein the first pressing portion and the second pressing portion are arranged at different positions in a sliding direction of the abutting member. comprising a plurality of the contact members,
The door opening/closing detection unit according to claim 1 or 2 , wherein the plurality of contact members have the same shape and are arranged at different positions in the vertical direction. The abutting member is
a contact surface that contacts the door;
The door opening/closing detection unit according to any one of claims 1 to 3 , further comprising a chamfered portion provided at the end opposite to the contact surface and on the base member side. The door opening/closing detection unit according to any one of claims 1 to 4 , wherein the base member has a hook for separating wiring for the latch switch and short switch from wiring for the monitor switch. The door opening/closing detection unit according to claim 1, wherein the length of the wiring for the latch switch is different from the length of the wiring for the short switch. The contact member has a contact surface that contacts the door, an opening , and a first elastic body receiving portion provided on the contact surface side of the opening,
The base member has a second elastic body receiving portion that protrudes on a side opposite to the contact surface side of the opening,
The door opening/closing device according to any one of claims 1 to 6 , wherein the elastic body is arranged in the opening of the abutment member and held by the first elastic body receiving portion and the second elastic body receiving portion. detection unit. a base member;
a contact member that slides as the door opens and closes;
an elastic body that pushes the contact member toward the door;
at least two switches;
The base member is
a switch mounting part to which the at least two switches are mounted;
a groove-shaped abutment member attachment portion to which the abutment member is attached;
The at least two switches include at least any two of a latch switch for stopping the supply of power, a short switch functioning as a safety device, and a monitor switch for transmitting an opening/closing detection signal of the door. ,
The contact member has a first pressing portion and a second pressing portion that press actuators of the at least two switches,
The abutment member slides along the abutment member mounting portion,
The contact member has a contact surface that contacts the door, an opening, and a first elastic body receiving portion provided on the contact surface side of the opening,
The base member has a second elastic body receiving portion that protrudes on a side opposite to the contact surface side of the opening,
The elastic body is arranged in the opening of the contact member and is held by the first elastic body receiving portion and the second elastic body receiving portion. a heating chamber in which the object to be heated is stored;
a heating device that heats the object to be heated;
a door that opens and closes the front of the heating warehouse;
A cooking device comprising: a door opening/closing detection unit according to any one of claims 1 to 8, which detects opening/closing of the door.

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