CN111195075A

CN111195075A - Cooking utensil

Info

Publication number: CN111195075A
Application number: CN201911045484.0A
Authority: CN
Inventors: 姚斌; 樊杜平; 刘世强
Original assignee: SEB SA
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd; SEB SA
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-05-26

Abstract

The invention provides a cooking appliance, which comprises a cooker body, an inner pot, a cover body, an air pump, a first magnetic device and a sealing assembly. The first magnetic device is arranged in the cover body. The seal assembly includes a second magnetic device and a seal. The first magnetic device can apply a first acting force to the second magnetic device so that the sealing member moves towards the sealing position for sealing the vent hole; and the first magnetic means is capable of applying a second force to the second magnetic means opposite the first force such that the sealing member moves towards the conducting position away from the vent. According to the cooking appliance disclosed by the invention, different acting forces are applied to the second magnetic device by utilizing the first magnetic device to seal or conduct the vent hole, the cooking space can be sealed when the cooking function is executed, and meanwhile, the cooking space is conducted after the cooking function is finished, so that the cooking effect is ensured, the condition that the cover cannot be opened due to pressure difference is avoided, and the use experience of a user is improved.

Description

Cooking utensil

Technical Field

The present invention generally relates to the field of cookware, and more particularly, to a cooking appliance.

Background

Existing cooking appliances sometimes have an air extractor provided therein that is capable of extracting air from the cooking space to maintain the cooking space in a negative pressure state. After the culinary art is finished, need let culinary art space and external intercommunication to make culinary art space roughly the same with external atmospheric pressure, later the user just can uncap smoothly, thereby takes out the food in the culinary art space.

The conventional device for realizing ventilation generally adopts a rebound mechanism, but when an excessively low negative pressure is kept in a cooking space, the normal uncovering can not be realized because the rebound force of the rebound mechanism is smaller than the pressure generated by atmospheric pressure difference.

Therefore, there is a need to provide a cooking appliance to at least partially solve the above problems.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above problems, the present invention provides a cooking appliance, comprising:

a pot body;

the inner pot is arranged in the pot body;

the cover body can cover the cooker body, when the cover body covers the cooker body, a cooking space is formed between the cover body and the inner pot, and the cover body is provided with a vent hole communicated with the cooking space;

the air inlet of the air pump is communicated with the cooking space;

a first magnetic device disposed in the cover; and

a seal assembly comprising a second magnetic device and a seal coupled to the second magnetic device,

wherein the first magnetic means is capable of applying a first force to the second magnetic means such that the sealing member moves towards a sealing position sealing the vent; and is

The first magnetic means is capable of applying a second force to the second magnetic means opposite the first force such that the seal moves towards a conducting position away from the vent.

According to the cooking appliance, the first magnetic device is used for applying the first acting force and the second acting force opposite to the first acting force to the second magnetic device, so that the sealing and pressure relief functions can be effectively realized, the cooking space can be sealed when the cooking function is executed, meanwhile, the cooking space can be conducted after the cooking function is finished, the cooking effect is guaranteed, meanwhile, the condition that the cover cannot be opened due to pressure difference is avoided, the reliability of pressure relief is improved, and the use experience of a user is improved.

Optionally, the first magnetic means is an energizing coil, the second magnetic means at least partially protrudes into the energizing coil, and the energizing coil, when energized, is capable of generating a magnetic field to drive the second magnetic means to move. In such an arrangement, the second magnetic means may be driven to move by generating a magnetic field using an electrical coil.

Optionally, the second magnetic device is an elongated magnetic bar, and the length direction of the magnetic bar is substantially parallel to the axial direction of the vent hole. In such an arrangement, the vent holes may be sealed or vented by movement of the magnetic rod.

Optionally, the energizing coil generates a first magnetic field in a state where a first current is turned on, the magnetic pole of the first magnetic field is the same as the magnetic pole of the magnetic rod, and the energizing coil generates a repulsive force to the magnetic rod to move the magnetic rod and the sealing member toward the sealing position. In such an arrangement, the magnetic rod may be driven to move to the sealing position by a repulsive force of the first magnetic field to the magnetic rod.

Alternatively, the energizing coil generates a second magnetic field having a magnetic pole opposite to that of the magnetic rod in a state where the second current is turned on, and the energizing coil generates an attractive force to the magnetic rod to move the magnetic rod and the seal member toward the on position. In such an arrangement, the magnetic rod may be driven to move to the conducting position by an attractive force of the second magnetic field to the magnetic rod.

Optionally, the length of the energized coil in the length direction is 12 to 16 mm. In such an arrangement, the magnetic effect of the energized coil can be ensured.

Optionally, the magnetic bar extends to a midpoint of the energized coil in the length direction. In such an arrangement, the magnetic force effect of the energized coil on the magnetic rod can be more sufficiently ensured.

Optionally, the number of turns of the wire of the energized coil is 100 to 1000 turns. In such an arrangement, the magnetic effect of the energized coil can be ensured.

Optionally, the sealing assembly further comprises an elastic member, the elastic member is connected with the sealing member, and the sealing member can move towards a direction away from the vent hole under the elastic force of the elastic member. In such an arrangement, the seal member can be separated from the vent hole by the elastic force of the elastic member.

Optionally, the outer diameter of the magnetic bar matches the inner diameter of the electrical coil. In such an arrangement, the magnetic bar can be made to maximise the use of the magnetic field generated by the energised coil.

Drawings

The following drawings of embodiments of the invention are included as part of the present invention for an understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In the drawings, there is shown in the drawings,

fig. 1 is an exploded schematic view of a cooking appliance according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a portion of the components in the lid of the cooking appliance shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of a first magnetic device and a seal assembly of the cooking appliance shown in FIG. 1; and

fig. 5 is a schematic view of still another structure of the first magnetic device and the sealing assembly in the cooking appliance shown in fig. 1.

Description of reference numerals:

100: the cooking appliance 110: pot body

111: an inner pot 120: cover body

121: detachable cover 122: vent hole

131: the air pump 132: air inlet

133: solenoid valve 134: exhaust pipe

141: energizing coil 142: magnetic bar

143: seal 144: elastic piece

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art.

Fig. 1 shows a cooking appliance 100 according to a preferred embodiment of the present invention. The cooking appliance 100 may include a pot body 110 and a cover 120, the pot body 110 may have an inner pot receiving portion of a cylindrical shape (or other shapes), and the inner pot 111 may be freely put into or taken out of the inner pot receiving portion to facilitate cleaning of the inner pot 111. The inner pot 111 is generally made of a metal material and has a circular opening on an upper surface, and the inner pot 111 may be configured as a body of revolution formed by a pot wall having an upper opening and an inner cavity. The capacity of the inner pot 111 is usually below 6L, for example, the capacity of the inner pot 111 may be 2L or 4L.

The cover body 120 includes a detachable cover 121 and an upper cover, and the detachable cover 121 is detachably coupled to the upper cover. The cover 120 may be pivotally connected to the pot body 110 by a pivot shaft for covering the pot body 110, and when the cover 120 is covered to the pot body 110, a cooking space is formed between the removable cover 121 and the inner pot 111. The cooking appliance 100 may further have a temperature sensing device (not shown).

In addition, the cooking appliance 100 may include a control device for implementing cooking control of the cooking appliance 100. For example, the Control device may be a Micro Control Unit (MCU). The cooking appliance 100 may further include a heating device (not shown) for heating the inner pan 111, the heating device being electrically connected with the control device. The temperature sensing device is connected to the control device of the cooking appliance 100 to feed back the sensed temperature signal to the control device after sensing the temperature of the inner pan 111, so that the control device can achieve more precise control of the cooking process based on the temperature signal.

The cooking appliance 100 in the present embodiment is a vacuum cooking appliance. Specifically, as shown in fig. 2, an air pump 131 is provided in the cover 120 of the cooking appliance 100, an air inlet 132 of the air pump 131 passes through the detachable cover 121 to communicate with the cooking space, and an exhaust pipe 134 is connected to the air pump 131. While the cooking function is performed, the air pump 131 can pump air in the cooking space and discharge it to the outside through the exhaust pipe 134. In addition, a solenoid valve 133 is further provided at the air inlet 132 of the air pump 131, the solenoid valve 133 is electrically connected to the control means, and when it is detected that the pressure value in the cooking space reaches a predetermined value, the operation of the air pump 131 is stopped and the solenoid valve 133 is energized to seal the cooking space so as to perform a cooking function.

Further, a vent hole 122 communicating with the cooking space is further provided on the detachable cover 121, and the vent hole 122 may communicate the cooking space with the outside to reduce a pressure difference between the cooking space and the outside after the cooking function is completed, thereby facilitating the user to open the cover.

In addition, a first magnetic device and a sealing assembly are disposed in the cover 120. Wherein the first magnetic means is electrically connected to the control means and the sealing assembly comprises a second magnetic means and a seal 143 connected to the second magnetic means. The seal 143 may be used to seal or vent the vent hole 122. When the cooking appliance 100 performs a cooking function, the first magnetic device applies a first acting force to the second magnetic device under the control of the control device, so that the second magnetic device and the sealing member 143 move towards the sealing position for sealing the vent hole 122, so that the sealing member 143 seals the vent hole 122, and further the cooking space maintains a sealing state, so as to perform the cooking function. After the cooking function is finished, the first magnetic device applies a second acting force opposite to the first acting force to the second magnetic device under the control of the control device, so that the second magnetic device and the sealing member 143 move towards the conducting position far away from the vent hole 122, the cooking space is communicated with the outside, and the cover opening is further facilitated.

According to the cooking utensil 100 of the present invention, the first magnetic device applies different acting forces to the second magnetic device, and the vent hole 122 can be reliably sealed or conducted, so that the cooking space can be sealed when the cooking function is performed, and the cooking space can be conducted after the cooking function is completed, thereby ensuring the cooking effect, avoiding the situation that the lid cannot be opened due to pressure difference, and improving the user experience.

In the present embodiment, as shown in fig. 3, the first magnetic device is an electrified coil 141, and the second magnetic device is an elongated magnetic bar 142 at least partially extending into the electrified coil 141. Wherein the sealing member 143 is provided at an end of the magnetic rod 142. The longitudinal direction of the magnetic rod 142 is substantially parallel to the axial direction of the vent hole 122 (i.e., the height direction of the cooking appliance). The magnetic rod 142 is moved substantially in the axial direction of the vent hole 122 by the driving of the energizing coil 141.

The second magnetic means is preferably made of a high temperature resistant magnet due to the high temperature in the cooking space. The number of turns and the number of wires of the energizing coil 141 may be set appropriately according to the strength, direction, etc. of the magnetic field to be generated, for example, the number of turns of the wires of the energizing coil 141 may be set to 100 to 1000 turns. Further, it is preferable that the length of the energized coil 141 in the length direction of the magnetic rod 142 is 12 to 16 mm. The magnetic rod 142 may partially protrude into the energized coil 141 as required, for example, the distance of the magnetic rod 142 protruding into the energized coil 141 is 1 to 20 mm. Preferably, the magnetic rod 142 extends to a midpoint of the electrified coil 141 in a length direction of the magnetic rod 142, for example, when the length of the electrified coil 141 in the length direction of the magnetic rod 142 is 14mm, the length of the magnetic rod 142 protruding into the electrified coil 141 is 7 mm. It will be appreciated that the thickness of the magnetic rod 142 is set to match the inner diameter of the energized coil 141 so that the magnetic rod 142 maximizes the use of the magnetic field generated by the energized coil 141.

Further, the sealing assembly further comprises an elastic member 144, the elastic member 144 is connected to the sealing member 143, and the sealing member 143 can move away from the vent hole 122 under the elastic force of the elastic member 144. When the cooking appliance 100 is in the non-operating state, the sealing member 143 is separated from the vent hole 122 by the elastic member 144 to conduct the vent hole 122. Meanwhile, the elastic member 144 may play a role in positioning the sealing member 143. Preferably, the elastic member 144 may be a spring.

The coil 141 can drive the bar magnet 142 to move in two opposite directions, and the specific structure can be as shown in fig. 4 and 5. It should be noted that fig. 4 and 5 are merely exemplary illustrations, and other arrangements may be provided in other embodiments.

As shown in fig. 4, the first magnetic device is a set of electrical coils 141, and the electrical coils 141 are connected to the circuit through the a terminal and the B terminal. The second magnetic device is a magnetic rod 142 at least partially extending into the energized coil 141, and in the present embodiment, the magnetic rod 142 is disposed with the S-pole facing upward and the N-pole facing downward. When the vent hole 122 needs to be opened, the energizing coil 141 can be connected with a first current, wherein the current in the energizing coil 141 flows into the end point B from the end point a and flows out, at this time, the energizing coil 141 generates a first magnetic field, according to the right-hand screw rule, the upper end of the energizing coil 141 is an N pole, the lower end of the energizing coil 141 is an S pole, opposite to the magnetic field generated by the magnetic rod 142, the energizing coil 141 generates attraction force on the magnetic rod 142, so that the magnetic rod 142 drives the sealing member 143 to move upwards towards the opening position, and thus the sealing member 143 is far away from the; when the vent hole 122 needs to be sealed, the energizing coil 141 can be connected with a second current, wherein the current in the energizing coil 141 flows into the end point a from the end point B and flows out, at this time, the energizing coil 141 generates a second magnetic field, according to the right-hand screw rule, the upper end of the energizing coil 141 is an S pole, the lower end is an N pole, the same as the magnetic field generated by the magnetic rod 142, the energizing coil 141 generates a repulsive force to the magnetic rod 142, so that the magnetic rod 142 drives the sealing member 143 to move downwards towards the sealing position, and the vent hole 122 is closed to the vent hole 122 and is further sealed.

As shown in fig. 5, the first magnetic means is two sets of the electric coils 141 arranged along the height direction of the cooking appliance, the upper electric coil 141 is connected to the circuit through the C terminal and the D terminal, and the lower electric coil 141 is connected to the circuit through the D terminal and the E terminal. The second magnetic device is a magnetic rod 142 at least partially extending into the energized coil 141, and in the present embodiment, the magnetic rod 142 is disposed with the S-pole facing upward and the N-pole facing downward. When the vent hole 122 needs to be opened, a first current can flow into the D end point from the C end point of the energizing coil 141 and flow out, at this time, the energizing coil 141 generates a first magnetic field, according to the right-hand screw rule, the upper end of the energizing coil 141 is an N pole, the lower end is an S pole, opposite to the magnetic field generated by the magnetic rod 142, the energizing coil 141 generates attraction force on the magnetic rod 142, so that the magnetic rod 142 drives the sealing member 143 to move upwards towards the opening position, and thus the sealing member 143 is far away from the vent hole 122; when the vent hole 122 needs to be sealed, a second current can flow into the D end point from the E end point in the energizing coil 141 and flow out, at this time, the energizing coil 141 generates a second magnetic field, according to the right-hand screw rule, the upper end of the energizing coil 141 is an S pole, the lower end is an N pole, the magnetic field is the same as that generated by the magnetic rod 142, the energizing coil 141 generates a repulsive force to the magnetic rod 142, so that the magnetic rod 142 drives the sealing member 143 to move downwards towards the sealing position, and the sealing member is close to the vent hole 122 to further seal the vent hole 122.

In addition, preferably, the energization coil 141 may be energized at an initial stage when the cooking function is performed and after the cooking function is finished, and may be de-energized at other periods (for example, after negative pressure has been formed in the cooking space) to reduce heat generation of the coil, reduce a load of the circuit board, and save use cost.

Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the foregoing illustrative embodiments are merely exemplary and are not intended to limit the scope of the invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as set forth in the appended claims.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

The above description is only for the specific embodiment of the present invention or the description thereof, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cooking appliance, characterized in that the cooking appliance (100) comprises:

a pot body (110);

an inner pot (111), the inner pot (111) being disposed in the pot body (110);

the cover body (120) can be covered on the cooker body (110), when the cover body (120) is covered on the cooker body (110), a cooking space is formed between the cover body (120) and the inner pot (111), and the cover body (120) is provided with a vent hole (122) communicated with the cooking space;

an air pump (131), an air inlet (132) of the air pump (131) being communicated with the cooking space;

a first magnetic means provided in the cover (120); and

a seal assembly comprising a second magnetic device and a seal (143) connected to the second magnetic device,

wherein the first magnetic means is capable of applying a first force to the second magnetic means such that the sealing member (143) moves towards a sealing position sealing the vent (122); and is

The first magnetic means is capable of exerting a second force on the second magnetic means opposite the first force, such that the seal (143) moves towards a conducting position away from the vent (122).

2. The cooking appliance according to claim 1, wherein the first magnetic means is an electrical coil (141), the second magnetic means at least partially protrudes into the electrical coil (141), and the electrical coil (141) is capable of generating a magnetic field to drive the second magnetic means in the energized state.

3. The cooking appliance according to claim 2, wherein the second magnetic means is an elongated magnetic bar (142), and a length direction of the magnetic bar (142) is substantially parallel to an axial direction of the vent hole (122).

4. The cooking appliance according to claim 3, wherein the energizing coil (141) generates a first magnetic field having the same magnetic polarity as the magnetic rod (142) in a state where a first current is turned on, and the energizing coil (141) generates a repulsive force to the magnetic rod (142) to move the magnetic rod (142) and the sealing member (143) toward the sealing position.

5. The cooking appliance according to claim 3, wherein the energizing coil (141) generates a second magnetic field in a state where a second current is turned on, the magnetic pole of the second magnetic field being opposite to the magnetic pole of the magnetic rod (142), the energizing coil (141) generating an attractive force to the magnetic rod (142) to move the magnetic rod (142) and the sealing member (143) toward the on position.

6. The cooking appliance according to claim 3, wherein the length of the energized coil (141) in the length direction is 12 to 16 mm.

7. The cooking appliance according to claim 6, wherein the magnetic bar (142) extends to a midpoint of the electrical coil (141) in the length direction.

8. The cooking appliance according to claim 2, wherein the number of turns of the wire of the energizing coil (141) is 100 to 1000 turns.

9. The cooking appliance according to claim 1, wherein the sealing assembly further comprises an elastic member (144), the elastic member (144) is connected with the sealing member (143), and the sealing member (143) can move towards a direction away from the vent hole (122) under the elastic force of the elastic member (144).

10. The cooking appliance according to claim 3, wherein the outer diameter of the magnetic bar (142) matches the inner diameter of the electrical coil (141).