CN116268959A

CN116268959A - Steaming and baking box

Info

Publication number: CN116268959A
Application number: CN202310065501.7A
Authority: CN
Inventors: 张雪飞; 刘娟
Original assignee: Hisense Shandong Kitchen and Bathroom Co Ltd
Current assignee: Hisense Shandong Kitchen and Bathroom Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-06-23

Abstract

The application provides a evaporate oven relates to household electrical appliances technical field for solve the door body of evaporating the oven when having the foreign matter to block, drive the motor that the door body removed and continue the operation, make the motor lock the technical problem that generates heat and burn out. The steaming and baking box comprises: the door comprises a box body, a door body, a transmission piece, a door opening and closing driving device and a driving plate. A containing cavity is formed in the box body, an opening is formed in the box body, and the opening is communicated with the containing cavity; the door body is movably connected to the box body so as to close or open the opening of the box body; one end of the transmission piece is in transmission connection with the door body, the other end of the transmission piece is in transmission connection with the door opening and closing driving device, and the door opening and closing driving device can drive the door body to move through the transmission piece; the drive plate is electrically connected with the door opening and closing drive device, can detect the current of the door opening and closing drive device in real time, and is configured to: and controlling the door opening and closing driving device to start, and if the driving plate obtains that the current in the door opening and closing driving device is larger than a first preset value, controlling the door opening and closing driving device to stop working by the driving plate.

Description

Steaming and baking box

Technical Field

The application relates to the technical field of household appliances, in particular to a steaming and baking box.

Background

When the steaming oven works, water is heated to be boiled through the evaporator, food is steamed by generated steam, water in the evaporator is pumped from the water tank through the water pump, the water tank door is opened and closed when water is changed, the water tank door is manually operated and electric, the steaming oven with the electric water tank door function can improve user experience, and the steaming oven is more and more favored in the market.

When the conventional electric water tank door is opened or closed, the water tank door is opened or closed mainly through the rotation of the motor and by matching with a gear rack or other mechanical structures, when the water tank door is opened or closed to a certain position, the limit switch at the end of the stroke is triggered to act, signal change is generated, and after the signal is transmitted to the control system, the control system issues a command to control the motor to stop working. Because the water tank door is heavy, the motor torque generally selected for driving the water tank door to normally open and close is large. If foreign matters are blocked in the switching process, when the water tank door does not reach the fixed position, the limit switch cannot be touched, the motor still can continue to run, a user can easily cause the condition that the clamping hand or the motor is blocked, heated and burnt out in the actual operation process, and potential safety hazards exist.

Disclosure of Invention

The application provides a steam oven for solve the door body of steam oven when having the foreign matter to block, drive the motor that the door body removed and continue the operation, make the motor lock the technical problem that generates heat and burn out.

The application provides a steaming and baking box, including: the door comprises a box body, a door body, a transmission piece, a door opening and closing driving device and a driving plate, wherein a containing cavity is formed in the box body, an opening is formed in the box body, and the opening is communicated with the containing cavity; the door body is movably connected to the box body so as to close or open the opening of the box body; one end of the transmission piece is in transmission connection with the door body, the other end of the transmission piece is in transmission connection with the door opening and closing driving device, and the door opening and closing driving device can drive the door body to move through the transmission piece; the drive plate is electrically connected with the door opening and closing drive device, can detect the current of the door opening and closing drive device in real time, and is configured to: and controlling the door opening and closing driving device to start, and if the driving plate obtains that the current in the door opening and closing driving device is larger than a first preset value, controlling the door opening and closing driving device to stop working by the driving plate so as to stop moving the door body.

The steaming and baking box comprises a box body, a door body, a transmission piece, a door opening and closing driving device and a driving plate, wherein a containing cavity is formed in the box body, an opening is formed in the box body and communicated with the containing cavity, and therefore a water storage box can be contained in the containing cavity. In addition, the door body is movably connected to the box body so as to close or open the opening of the box body; one end of the transmission piece is in transmission connection with the door body, the other end of the transmission piece is in transmission connection with the door opening and closing driving device, and the door opening and closing driving device can drive the door body to move through the transmission piece. Therefore, the door body can be driven by the door opening and closing driving device to close or open the opening of the box body through the driving piece, so that the door body can be automatically opened or closed, and the use of a user is facilitated.

In addition, the drive plate is electrically connected with the door opening and closing driving device, the drive plate can detect the current of the door opening and closing driving device in real time, and the drive plate is configured to: and controlling the door opening and closing driving device to start, and if the driving plate obtains that the current in the door opening and closing driving device is larger than a first preset value, controlling the door opening and closing driving device to stop working by the driving plate so as to stop moving the door body. It will be appreciated that the current level of the door opening and closing drive device will vary in different operating conditions, and that the current will generally fluctuate less during steady operation and will increase significantly when it encounters resistance. Therefore, when the door opening and closing driving device is started, if the door body is blocked by the foreign matters, the current in the door opening and closing driving device is larger than a first preset value, and the driving plate controls the door opening and closing driving device to stop working, so that the door body stops moving. Therefore, the motor can be prevented from being burnt out due to the heating caused by locked rotor. In addition, the door body is blocked in the moving process, and the door body stops moving, so that the door body has the function of preventing the clamping hands, and the safety of the steaming and baking oven is improved.

In some embodiments of the present application, the drive plate includes: the driving chip is electrically connected with the door opening and closing driving device and is used for controlling the starting and stopping of the door opening and closing driving device; the controller is electrically connected with the driving chip and is configured to: and controlling the door opening and closing driving device to start, wherein if the controller obtains that the current in the door opening and closing driving device is larger than the first preset value through the driving chip, the controller controls the door opening and closing driving device to stop working through the driving chip so as to stop moving the door body.

In some embodiments of the present application, the drive plate further comprises: the current detection amplifying circuit is electrically connected with the driving chip and the controller; the current detection amplifying circuit is used for receiving the current in the switch door driving device acquired by the driving chip, amplifying the current of the switch door driving device and then sending the amplified current to the controller.

In some embodiments of the present application, the steaming oven further comprises: the control board is electrically connected with the controller and is used for receiving an instruction of a user for opening or closing the door body; the controller is further configured to: and responding to the command of opening or closing the door body from the control panel, and sending a starting signal to the driving chip so as to start the door opening and closing driving device.

In some embodiments of the present application, a first key and a second key are provided on the control board; the driving chip is also used for controlling the forward rotation and the reverse rotation of the door opening and closing driving device; the controller is further configured to: responding to the operation of a user on the first key received from the control panel, and sending a first starting signal to the driving chip so as to enable the door opening and closing driving device to rotate positively, wherein the first starting signal is used for indicating the door opening and closing driving device to rotate positively; and responding to the operation of the user on the second key from the control panel, sending a second starting signal to the driving chip so as to enable the door opening and closing driving device to rotate reversely, wherein the second starting signal is used for indicating the door opening and closing driving device to rotate reversely.

In some embodiments of the present application, a water storage box is disposed in the accommodating cavity, and a projection area of the water storage box on a wall surface where the opening is located is smaller than the opening area; the door body has a first position and a second position in the moving process, and the door body seals the opening when in the first position; in the second position, the projection of the door body on the plane where the opening is located is staggered with the opening.

In some embodiments of the present application, the steaming oven further comprises: the door comprises a first position sensor and a second position sensor, wherein the first position sensor is used for detecting whether the door body reaches the first position, and the second position sensor is used for detecting whether the door body reaches the second position; the alarm device is used for reminding a user of abnormal movement of the door body; the controller is further configured to: when the driving plate controls the door opening and closing driving device to stop working, if the controller obtains that the door body does not reach the first position and does not reach the second position, the controller sends an alarm instruction to the alarm device so as to enable the alarm device to be started.

In some embodiments of the present application, the receiving cavity comprises: the first accommodating cavity and the second accommodating cavity are internally provided with a first water storage box in a detachable mode, and the second accommodating cavity is internally provided with a second water storage box in a detachable mode; the first accommodating cavity and the second accommodating cavity are arranged at intervals, and the arrangement direction of the first accommodating cavity and the second accommodating cavity is perpendicular to the moving direction of the door body.

In some embodiments of the present application, the transmission is a linkage.

In some embodiments of the present application, the door opening and closing driving means is a motor.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and do not limit the invention.

Fig. 1 is a schematic perspective view of a steaming oven according to an embodiment of the present application;

fig. 2 is a schematic circuit connection diagram of an oven according to an embodiment of the present disclosure;

FIG. 3 is a second schematic circuit diagram of a steaming oven according to an embodiment of the present disclosure;

fig. 4 is a schematic circuit structure diagram of a driving chip according to an embodiment of the present application;

FIG. 5 is a third schematic diagram of a circuit connection of a steaming oven according to an embodiment of the present disclosure;

fig. 6 is a schematic connection diagram of a current detection amplifying circuit according to an embodiment of the present application;

FIG. 7 is a schematic diagram showing a second perspective view of a steaming oven according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a circuit connection of an oven according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a control board according to an embodiment of the present application;

fig. 10 is a schematic diagram of circuit connection of an oven according to an embodiment of the present disclosure.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

Fig. 1 illustrates a schematic perspective view of a steaming oven according to an embodiment of the present application, and as shown in fig. 1, the steaming oven 100 may include: the door opening and closing device comprises a box body 10, a door body 20, a transmission member 30, a door opening and closing driving device 40 and a driving plate 50.

As shown in fig. 1, a containing cavity 11 is formed in the case 10, and an opening 12 is formed in the case 10, and the opening 12 communicates with the containing cavity 11.

It will be appreciated that the steaming oven 100 is operated by heating water to boiling by an evaporator, typically water pump from a water storage tank, to produce steam to steam food. Wherein, the accommodating cavity 11 can be detachably provided with a water storage box, and the projection area of the water storage box on the wall surface of the opening 12 is smaller than the area of the opening 12, so that the water storage box can be moved out of the accommodating cavity 11 through the opening 12. Therefore, the water storage box is convenient for a user to add water into the water storage box.

Alternatively, as shown in fig. 1, the accommodating chamber 11 may include: a first accommodation chamber 111 and a second accommodation chamber 112. The first accommodating cavity 111 is detachably provided with a first water storage box, the second accommodating cavity 112 is detachably provided with a second water storage box, and the first accommodating cavity 111 and the second accommodating cavity 112 are arranged at intervals. Wherein the first receiving chamber 111 may be used to store clean water required for the evaporator and the second receiving chamber 112 may be used to store contaminated water for cleaning the steaming oven 1000. In this way, the first accommodating cavity 111 and the second accommodating cavity 112 of the steaming and baking box 100 are separated, so that the sewage in the first water storage box is prevented from polluting the purified water in the second water storage box, and the physical health of a user is prevented from being influenced.

In addition, the door 20 is movably connected to the case 10, and the door 20 is located at the opening 12, and the door 20 can close or open the opening 12 of the case 10.

In one possible implementation, the door 20 can move in a straight line with respect to the case 10 so that the opening 12 of the case 10 is closed or opened, i.e., as shown in fig. 1, the door 20 can reciprocate in the Y-axis direction shown in fig. 1 so that the opening 12 is closed or opened.

For example, a rail-slider mechanism, a gear transmission mechanism may be provided on the door 20 or the case 10 to move the door 20 linearly with respect to the case 10.

In another possible implementation, one end of the door 20 is hinged to the case 10, and the door 20 can be rotated along the hinge to close or open the opening 12.

The door 20 may be hinged to the case 10 by a hinge, and the door 20 may be hinged to the case 10 by a hinge, which is not limited in this application.

In addition, one end of the transmission member 30 is in transmission connection with the door body 20, and the other end of the transmission member 30 is in transmission connection with the door opening and closing driving device 40.

In one possible implementation, as shown in fig. 1, the transmission member 30 may be a link mechanism, and the link mechanism has the characteristics of large bearing capacity, convenient lubrication, difficult abrasion, simple shape, easy processing, easy obtaining of higher manufacturing precision, and the like, so that the transmission member 30 is simple to process and has higher stability.

The connecting rod mechanism can realize conversion of various motion modes, and can convert rotation of the driving part into rotation, reciprocating movement or swinging of the driven part. For example, as shown in fig. 1, the link mechanism may implement a reciprocating movement of the door 20 in the Y-axis direction shown in fig. 1, and the movement direction of the door 20 is perpendicular to the arrangement direction (i.e., Z-axis direction) of the first and second receiving

chambers

111 and 112. Thus, when both the first and second water storage boxes need to be taken out, the distance that the door 20 needs to move is small, thereby reducing the energy consumption of the steaming and baking oven 100.

In another possible implementation, the transmission member 30 may also be a worm gear, which has a large transmission ratio and a compact size. Therefore, the volume of the driving member 30 can be reduced, which is advantageous for miniaturization of the steaming oven 100.

The door opening and closing driving device 40 can drive the door body 20 to move through the transmission member 30. In one possible implementation, the door opening and closing driving means 40 may be a motor, which may also be referred to as an electric motor. The motor is a device for converting electrical energy into mechanical energy, which utilizes energized coils (i.e., stator windings) to generate a rotating magnetic field and act on a rotor to form a magnetomotive rotational torque. Because the motor has high working efficiency, no environmental pollution and low noise, and the motor can meet the torque of the moving door body 20, the door opening and closing driving device 40 of the embodiment of the present application can be preferably a motor.

Alternatively, the motor may be a direct current motor, or the motor may be a stepper motor, or other motors, which is not limited in this application.

In addition, fig. 2 shows a schematic circuit connection diagram of an oven 100 according to an embodiment of the present application, as shown in fig. 2, the driving board 50 is electrically connected to the door opening and closing driving device 40, and the driving board 50 can detect the current of the door opening and closing driving device 40 in real time. The drive plate 50 may be configured to: the door opening and closing driving device 40 is controlled to start, and if the driving board 50 obtains that the current in the door opening and closing driving device 40 is greater than the first preset value, the driving board 50 controls the door opening and closing driving device 40 to stop working, so that the door body 20 stops moving.

The first preset value is a preset current value in the driving plate 50 of the steaming and baking box 100. It should be understood that the current of the motor may be different in different operation states, and the current generally fluctuates less during stable operation, and the current may be significantly increased when encountering resistance. Therefore, the first preset value can be a current value when the motor encounters resistance.

In addition, for convenience of description, the driving board 50 is not described herein for a moment, and reference is made to the following description.

The steaming and baking box 100 comprises a box body 10, a door body 20, a transmission piece 30, a door opening and closing driving device 40 and a driving plate 50, wherein a containing cavity 11 is formed in the box body 10, an opening 12 is formed in the box body 10, the opening 12 is communicated with the containing cavity 11, and therefore a water storage box can be contained in the containing cavity 11. In addition, the door 20 is movably connected to the case 10 to close or open the opening 12 of the case 10; one end of the transmission member 30 is in transmission connection with the door body 20, the other end of the transmission member 30 is in transmission connection with the door opening and closing driving device 40, and the door opening and closing driving device 40 can drive the door body 20 to move through the transmission member 30. In this way, the door 20 can close or open the opening 12 of the box 10 by the driving member 30 driven by the door opening and closing driving device 40, so as to realize automatic opening or closing of the door 20, and facilitate the use of a user.

Further, the driving board 50 is electrically connected to the door opening and closing driving device 40, the driving board 50 is capable of detecting the current of the door opening and closing driving device 40 in real time, and the driving board 50 is configured to: the door opening and closing driving device 40 is controlled to start, and if the driving board 50 obtains that the current in the door opening and closing driving device 40 is greater than the first preset value, the driving board 50 controls the door opening and closing driving device 40 to stop working, so that the door body 20 stops moving. It will be appreciated that the magnitude of the current in the door opening and closing device 40 (i.e., motor) may vary from operating to operating, and that the current will generally fluctuate less during steady operation and increase significantly when it encounters resistance. Thus, when the door opening and closing driving device 40 is started, if the door 20 is jammed by a foreign object, the current in the door opening and closing driving device 40 is greater than the first preset value, so that the driving plate 50 controls the door opening and closing driving device 40 to stop working to stop moving the door 20. Therefore, the motor can be prevented from being burnt out due to the heating caused by locked rotor. In addition, the door body 20 is blocked in the moving process, and the door body 20 can stop moving, so that the door body 20 has the function of preventing the clamping of hands, and the safety of the steaming and baking oven 100 is improved.

Fig. 3 is a schematic circuit connection structure of an oven according to an embodiment of the present application, and in one possible implementation, as shown in fig. 3, the driving board 50 may include: the door opening and closing device comprises a driving chip 51 and a controller 52, wherein the driving chip 51 is electrically connected with the door opening and closing driving device 40 (namely a motor), and the controller 52 is electrically connected with the driving chip 51.

The driving chip 51 is used for controlling the start and stop of the door opening and closing driving device 40. The driving chip 51 is a chip integrated with a CMOS control circuit and DMOS power devices. The driver chip 51 may be controlled by a standard TTL logic level signal having two enable control terminals that allow or disable operation of the device, i.e., control the start and stop of the door opening and closing driver 40, without being affected by the input signal.

Fig. 4 shows a schematic circuit connection diagram of a driving chip provided IN an embodiment of the present application, where, as shown IN fig. 4, the driving chip 51 includes a plurality of interfaces, and the plurality of interfaces may be a GND interface, an IN1 interface, an IN2 interface, a VREF interface, a PPAD interface, an OUT2 interface, an ISEN interface, an OUT1 interface, and a VM interface.

The GND interface is connected with the PPAD interface, and a connecting line of the GND interface and the PPAD interface is grounded. The IN2 interface is connected to the controller 52 through R89 to control the forward rotation of the motor. The IN1 interface is connected to the controller 52 to control the reversal of the motor. The VREF interface is externally connected with a reference voltage of 5V. The OUT2 interface and the OUT1 interface are respectively connected with two terminal pins of the 12V motor, so that the rotation of the motor is controlled. INSN is connected to VM interface through R110, C71, respectively, and the connection between R110 and C71 is also grounded. A 12V reference voltage is externally connected between the C71 and the VM interface.

That is, the terminal CN10 is connected to the door opening and closing driving device 40 (i.e., motor), the reverse1 and forward1 are connected to the controller 52, and the controller 52 controls the OUT1 and OUT2 to generate 12V, 0V or 0V, 12V or 0V voltage through the high and low level signals of the reverse1 and forward1, so as to realize the forward rotation or reverse rotation or stop of the door opening and closing driving device 40 (i.e., motor). ISEN1 of motor drive chip 51 may detect motor current magnitude in real time.

It should be understood that the schematic circuit connection structure of the driving chip 51 shown in fig. 4 is only an exemplary description of the embodiment of the present application, and is not meant to limit the present application in any way.

The controller 52 is a device that generates operation control signals according to command operation codes and timing signals, and instructs the steaming oven 100 to execute control commands. By way of example, the controller 52 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a programmable logic device (programmable logic device, PLD), a microprocessor, a microcontroller 52, or any combination thereof. The controller 52 may also be any other device having a processing function, such as a circuit, a device, or a software module, which is not limited in any way by the embodiments of the present application.

In some embodiments, the controller 52 may be a micro-control unit (microcontroller unit, MCU). The MCU is also called a single chip microcomputer (single chip microcomputer) or a single chip microcomputer, which properly reduces the frequency and specification of a central processing unit (central process unit, CPU), and integrates peripheral interfaces such as a memory (memory), a counter (Timer), USB, A/D conversion, UART, PLC, DMA and the like, and even an LCD driving circuit on a single chip to form a chip-level computer for different application occasions to perform different combination control.

Wherein the controller 52 may be used to control the operation of the various components of the steam oven 100 such that the various components of the steam oven 100 operate to perform the predetermined functions of the steam oven 100.

By way of example, the controller 52 may execute the following control instructions: the door opening and closing driving device 40 is controlled to start, and if the controller 52 obtains that the current in the door opening and closing driving device 40 is greater than the first preset value through the driving chip 51, the controller 52 controls the door opening and closing driving device 40 to stop working through the driving chip 51, so that the door body 20 stops moving.

Fig. 5 shows a schematic circuit connection diagram of an oven provided in an embodiment of the present application, and in some embodiments, as shown in fig. 5, the driving board 50 may further include: the current detection and amplification circuit 53 is electrically connected to both the driving chip 51 and the controller 52, and the current detection and amplification circuit 53 is configured to receive the current in the door opening and closing driving device 40 acquired by the driving chip 51, amplify the current in the door opening and closing driving device 40, and send the amplified current to the controller 52.

The current detection and amplification circuit 53 is a circuit capable of amplifying a weak current signal, and thus, the current detection and amplification circuit 53 amplifies the current signal in the door opening/closing driving device 40 obtained by the driving chip 51 and sends the amplified current signal to the controller 52. In this way, the driving chip 51 is prevented from directly sending the current signal in the door opening and closing driving device 40 to the controller 52, and the controller 52 cannot determine whether the door opening and closing driving device 40 encounters resistance in the operation process due to weak current signal in the door opening and closing driving device 40. In this way, stability of the steaming and baking oven 100 during operation of the door 20 is improved.

Fig. 6 shows a connection schematic diagram of a current detection amplifying circuit provided in the embodiment of the present application, as shown in fig. 6, ISEN1 may be connected to an INSN interface of a driving chip 51, IM1 is connected to a controller 52, INSN1 is connected to a triode interface 1 through R114, one end of a line between R114 and a triode is externally connected to a 5V power supply through R113, and the other end of the line between R114 and the triode is connected to a triode interface 2 through C29; the interface 3 of the triode is grounded through R108. The interface 3 of the triode is also connected with the interface 4 of the triode through R112. The interface 4 of the tertiary pipe is also connected with the controller 52 through R86; the line between R86 and controller 52 is grounded through C28. The interface 5 of the triode is grounded through C26, and the interface 5 of the triode is externally connected with a 5V power supply.

That is, ISEN1 may be connected to the INSN interface of the driving chip 51, and IM1 may be connected to the controller 52, and the current signal of ISEN1 may be amplified by a transistor and then output to the controller 52 through IM 1.

Similarly, the schematic connection structure of the current detection and amplification circuit shown in fig. 6 is merely an exemplary description of the embodiment of the present application, and is not limited to the specific embodiment of the present application.

In some embodiments, as shown in fig. 7, the steaming oven 100 may further include: a control board 60, the control board 60 may also be referred to as a control panel, and the control board 60 may be disposed at an intermediate position of the door body 20. As shown in fig. 8, the control board 60 is electrically connected to the controller 52, and the control board 60 is used for receiving a command from a user to open or close the door 20.

The controller 52 may also be configured to: in response to receiving an instruction from the control board 60 to open or close the door body 20 from the user, a start signal is sent to the driving chip 51 to start the door opening and closing driving device 40, so that the door opening and closing driving device 40 drives the door body 20 to move through the transmission of the transmission member 30 to open or close the door body 20.

Thus, the user can control the door body 20 of the steaming and baking oven 100 through the control panel, thereby facilitating the use of the user and improving the experience effect of the user.

In one possible implementation, as shown in fig. 9, the control board 60 may be provided with a first key 61 and a second key 62, and the driving chip 51 is further used to control the forward rotation and the reverse rotation of the door opening and closing driving device 40.

The controller 52 may also be configured to: in response to receiving the user's operation of the first key 61 from the control board, a first start signal is sent to the driving chip 51 to cause the door opening and closing driving device 40 to rotate forward. The first start signal is used to instruct the door opening and closing driving means 40 to rotate forward. In response to receiving the user's operation of the second key 62 from the control board 60, a second start signal for instructing the door opening and closing driving means 40 to be reversed is transmitted to the driving chip 51 to invert the door opening and closing driving means 40.

The first key 61 and the second key 62 may represent a door opening or closing, respectively, so that a user can open or close the door body 20 by operating the first key 61 or the second key 62.

In one possible implementation, the first key 61 and the second key 62 may be virtual. Illustratively, the control board 60 may include: a display screen on which virtual first keys 61 and second keys 62 may be displayed. In response to a user's touch of the first key 61 or the second key 62, the controller 52 transmits an activation signal (i.e., a first activation signal or a second activation signal) to the driving chip 51.

In another possible implementation, the first key 61 and the second key 62 may each be physical buttons of a physical entity. In response to the user pressing the first key 61 or the second key 62, the controller 52 transmits a start signal to the driving chip 51.

It will be appreciated that the door 20 has a first position and a second position during movement, the door 20 closing the opening 12 in the first position; in the second position, the projection of the door 20 on the plane of the opening 12 is offset from the opening 12, i.e. the cartridge in the receiving chamber 11 can be removed from the opening 12. However, in the embodiment of the present application, since the door opening and closing driving means 40 stops operating when the door 20 is blocked, the door 20 stops moving, so that the door 20 may not reach the first position or the second position. If the user leaves after operating the first key or the second key, the user may not know the abnormality of the movement of the door body 20 at the first time, so that dust in the external air enters the water storage box through the opening 12.

Thus, in some embodiments of the present application, as shown in fig. 10, the steaming oven 100 may further include: the first position sensor 70, the second position sensor 80, and the alarm device 90 are electrically connected to the controller 52. The first position sensor 70 is used for detecting whether the door body 20 reaches a first position, and the second position sensor 80 is used for detecting whether the door body 20 reaches a second position; the alarm device 90 is used for reminding the user of abnormal movement of the door body 20.

The controller 52 may also be configured to: when the driving board 50 controls the door opening and closing driving device 40 to stop working, if the controller 52 obtains that the door body 20 does not reach the first position and does not reach the second position, the controller 52 sends an alarm instruction to the alarm device 90 so as to enable the alarm device to be started.

In this way, when the door body 20 does not reach the first position and the second position, the door body 20 stops moving, and the alarm device 90 is started to remind the user of the abnormal movement of the door body 20, so that the user can know the abnormality of the steaming and baking oven 100 at the first time, the door body 20 of the steaming and baking oven 100 is prevented from being in a half-opened state for a long time, and purified water in the accommodating cavity 11 is polluted.

The alarm device 90 may be a speaker, and the alarm device 90 may also be an alarm lamp, which is not limited in this application.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An oven, comprising:

the box body is internally provided with a containing cavity, and an opening is formed in the box body and communicated with the containing cavity;

the door body is movably connected to the box body so as to close or open the opening of the box body;

the door opening and closing device is characterized by comprising a transmission piece and a door opening and closing driving device, wherein one end of the transmission piece is in transmission connection with the door body, the other end of the transmission piece is in transmission connection with the door opening and closing driving device, and the door opening and closing driving device can drive the door body to move through the transmission piece;

the drive plate is electrically connected with the door opening and closing drive device, can detect the current of the door opening and closing drive device in real time and is configured to: and controlling the door opening and closing driving device to start, and if the driving plate obtains that the current in the door opening and closing driving device is larger than a first preset value, controlling the door opening and closing driving device to stop working by the driving plate so as to stop moving the door body.

2. The steam oven of claim 1, wherein the drive plate comprises:

the driving chip is electrically connected with the door opening and closing driving device and is used for controlling the starting and stopping of the door opening and closing driving device;

and a controller electrically connected with the driving chip and configured to: and controlling the door opening and closing driving device to start, wherein if the controller obtains that the current in the door opening and closing driving device is larger than the first preset value through the driving chip, the controller controls the door opening and closing driving device to stop working through the driving chip so as to stop moving the door body.

3. The steam oven of claim 2, wherein the drive plate further comprises:

the current detection amplifying circuit is electrically connected with the driving chip and the controller;

the current detection amplifying circuit is used for receiving the current in the switch door driving device acquired by the driving chip, amplifying the current of the switch door driving device and then sending the amplified current to the controller.

4. The steaming oven according to claim 2, wherein the steaming oven further comprises:

the control board is electrically connected with the controller and is used for receiving an instruction of a user for opening or closing the door body;

the controller is further configured to: and responding to the command of opening or closing the door body from the control panel, and sending a starting signal to the driving chip so as to start the door opening and closing driving device.

5. The steaming oven according to claim 4, wherein the control board is provided with a first key and a second key;

the driving chip is also used for controlling the forward rotation and the reverse rotation of the door opening and closing driving device;

the controller is further configured to: responding to the operation of a user on the first key received from the control panel, and sending a first starting signal to the driving chip so as to enable the door opening and closing driving device to rotate positively, wherein the first starting signal is used for indicating the door opening and closing driving device to rotate positively;

and responding to the operation of the user on the second key from the control panel, sending a second starting signal to the driving chip so as to enable the door opening and closing driving device to rotate reversely, wherein the second starting signal is used for indicating the door opening and closing driving device to rotate reversely.

6. The steaming and oven according to claim 5, wherein a water storage box is arranged in the accommodating cavity, and the projection area of the water storage box on the wall surface where the opening is positioned is smaller than the opening area;

the door body has a first position and a second position in the moving process, and the door body seals the opening when in the first position; in the second position, the projection of the door body on the plane where the opening is located is staggered with the opening.

7. The steaming oven according to claim 6, wherein the steaming oven further comprises:

the door comprises a first position sensor and a second position sensor, wherein the first position sensor is used for detecting whether the door body reaches the first position, and the second position sensor is used for detecting whether the door body reaches the second position;

the alarm device is used for reminding a user of abnormal movement of the door body;

the controller is further configured to: when the driving plate controls the door opening and closing driving device to stop working, if the controller obtains that the door body does not reach the first position and does not reach the second position, the controller sends an alarm instruction to the alarm device so as to enable the alarm device to be started.

8. The steaming oven according to claim 6, wherein the receiving cavity comprises: the first accommodating cavity and the second accommodating cavity are internally provided with a first water storage box in a detachable mode, and the second accommodating cavity is internally provided with a second water storage box in a detachable mode; the first accommodating cavity and the second accommodating cavity are arranged at intervals, and the arrangement direction of the first accommodating cavity and the second accommodating cavity is perpendicular to the moving direction of the door body.

9. The steam oven of claim 1, wherein the transmission is a linkage.

10. The steam oven of claim 1, wherein the door opening and closing driving means is a motor.