CN220187801U

CN220187801U - Pressure sensor, liquid storage tank assembly and cooking utensil

Info

Publication number: CN220187801U
Application number: CN202321609364.0U
Authority: CN
Inventors: 李家孔; 周毅; 周忠宝; 秦伟伟; 卢汉伟; 利耀东
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-12-15
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a pressure sensor, a liquid storage tank assembly and a cooking utensil, wherein the pressure sensor comprises a shell, a diaphragm and a strain sensor assembly, the shell is provided with a cavity, the shell is provided with a first end and a second end, the cavity is communicated with the first end, the diaphragm is arranged between the first end and the second end and divides the cavity into a first cavity communicated with the first end and a second cavity arranged in a sealing way, the strain sensor assembly at least comprises a deformation part and a detection part, the deformation part is arranged in the second cavity, and the detection part is used for detecting the pressure change of the second cavity through the deformation part.

Description

Pressure sensor, liquid storage tank assembly and cooking utensil

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to a pressure sensor, a liquid storage tank assembly and a cooking appliance.

Background

Full automatic cooking appliances are provided with a container (such as a water tank or an oil tank) for independently containing liquid, and products need to measure the quantity of the liquid in the container to determine whether cooking can be performed.

In the scheme of detecting the liquid residual quantity in the container, the non-contact detection scheme generally adopts infrared correlation detection; the contact detection scheme generally adopts capacitive, reed floats, hall and the like. The detection schemes are rough detection schemes, the detection precision is not high, stepless detection of the residual quantity cannot be realized, and the user experience is poor.

Disclosure of Invention

The utility model mainly aims to provide a pressure sensor, a liquid storage tank assembly and a cooking utensil, and aims to solve the problem that the existing automatic cooking utensil cannot accurately detect the liquid residual quantity in a liquid container.

To achieve the above object, the present utility model provides a pressure sensor comprising:

the shell is provided with a cavity, the shell is provided with a first end and a second end, and the cavity is arranged through the first end;

the diaphragm is arranged in the cavity and positioned between the first end and the second end, and divides the cavity into a first cavity communicated with the first end and a second cavity arranged in a sealing way; the method comprises the steps of,

the strain sensor assembly at least comprises a deformation part and a detection part, wherein the deformation part is arranged in the second chamber, and the detection part is used for detecting the pressure change of the second chamber through the deformation part.

Optionally, the strain sensor assembly includes:

the resistance strain gauge is arranged in the second chamber, and the deformation part is formed on the resistance strain gauge; the method comprises the steps of,

the detection part is formed on the circuit board, and the circuit board is electrically connected with the resistance strain gauge.

Optionally, the first end and the second end are disposed opposite;

the resistance strain gauge is arranged on the cavity wall of the second cavity far away from the first cavity.

Optionally, the circuit board is disposed in the second chamber and on a side of the resistive strain gauge facing away from the first end.

Optionally, the strain sensor assembly includes a strain sensor body, the strain sensor body is disposed in the second chamber, the detection portion is disposed in the strain sensor body, and the deformation portion is disposed on a side of the strain sensor body facing the first chamber;

the strain sensor body is provided with a convex column, the convex column penetrates through the second end of the cavity, and an air hole is formed in the end face of the convex column in a penetrating mode.

The utility model also proposes a tank assembly for use in a cooking appliance, comprising:

the base assembly comprises a box base;

the box body is arranged above the box body base and provided with a liquid inlet and a liquid outlet; the method comprises the steps of,

and the hydraulic pressure detection device is used for detecting the hydraulic pressure in the box body.

Optionally, the hydraulic pressure detection device comprises a pressure sensor as described above, the first chamber of the pressure sensor being in communication with the tank body.

Optionally, the first chamber is in communication with the liquid outlet.

Optionally, the pressure sensor is disposed on the base of the case.

Optionally, the first end to the second end of the housing are disposed extending in a horizontal direction.

Optionally, the case body is detachably mounted to the case base.

Optionally, the base assembly further comprises a liquid feeding pipe, the liquid feeding pipe is installed on the base of the box body, a flow channel and a liquid feeding port communicated with the flow channel are formed in the liquid feeding pipe, and the liquid feeding port is communicated with the liquid outlet;

the hydraulic pressure detection device is arranged corresponding to the flow channel and is used for detecting the hydraulic pressure in the flow channel.

Optionally, the liquid outlet is arranged at the bottom of the box body;

the liquid outlet is provided with a check valve, the check valve is provided with a liquid conveying channel which extends up and down, one end of the liquid conveying channel is communicated with the liquid outlet, and the other end of the liquid conveying channel is communicated with the liquid conveying pipe.

Optionally, the check valve is movably provided with an elastic sealing element for opening and closing the liquid feeding channel;

the base component is provided with a driving piece corresponding to the check valve and used for driving the elastic sealing piece to move.

Optionally, the elastic sealing element is movably covered with the check valve and is used for opening and closing the upper end of the liquid conveying channel;

the driving piece extends upwards to extend into the liquid conveying channel and push the elastic sealing piece upwards to open the liquid conveying channel.

Optionally, the reservoir assembly comprises a water tank.

The utility model also proposes a cooking appliance comprising:

a liquid container; the method comprises the steps of,

a tank assembly as described above, said tank assembly communicating with said fluid reservoir.

According to the technical scheme, the cavity is divided into the first cavity communicated with the first end and the second cavity which is hermetically arranged through the diaphragm, the first end is arranged in a penetrating manner, the first cavity is communicated with the first end, when the pressure sensor detects hydraulic pressure, liquid enters the first cavity from the first end, the liquid can squeeze the diaphragm towards the direction of the second cavity, the hydraulic pressure of the liquid can change along with the change of the residual quantity of the liquid, the deformation size of the diaphragm which is squeezed changes along with the change of the hydraulic pressure of the liquid, the diaphragm deforms towards the second cavity due to the fact that the liquid squeezes the diaphragm towards the direction of the second cavity, the diaphragm can squeeze gas in the second cavity, the gas pressure of the second cavity changes, the deformation part of the strain sensor assembly is arranged in the second cavity, when the gas pressure in the second cavity changes, the deformation part changes under the action of the gas pressure, and the deformation part changes according to the change of the pressure of the second cavity which is detected by the detection part. The pressure sensor has high detection precision, can measure the tiny change of pressure, can be used for accurately detecting the liquid allowance in the liquid container, is convenient for a user to timely supplement liquid into the liquid container, and improves user experience. In addition, through the accurate detection of liquid surplus, the liquid volume that can also accurate measurement liquid container flow out, the convenient accurate liquid volume of control liquid container to liquid container transport, pressure sensor is used for cooking utensil, and liquid container be the water tank, when the liquid container is the cooking pan, can accurate measurement enter into the water yield in the cooking pan, and then the rice water ratio of control culinary art usefulness for full-automatic cooking is more intelligent, and the culinary art effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a cooking appliance according to an embodiment of the present utility model;

FIG. 2 is an exploded view of one embodiment of a tank assembly of the present utility model;

FIG. 3 is a cross-sectional view of the tank assembly of FIG. 2;

FIG. 4 is a schematic view of the pressure sensor of FIG. 2 assembled to a liquid feeding tube in a horizontal direction;

FIG. 5 is a schematic view of the pressure sensor of FIG. 4 assembled to a liquid feeding tube in an up-down direction;

FIG. 6 is a cross-sectional view of a pressure sensor according to an embodiment of the present utility model;

fig. 7 is an exploded view of the pressure sensor of fig. 6.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model 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 embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model 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.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a 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 at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In order to solve the above problems, the present utility model provides a pressure sensor 100, a liquid storage tank assembly 200 and a cooking apparatus 1000, and fig. 1 is a schematic perspective view of an embodiment of the cooking apparatus 1000 according to the present utility model; FIG. 2 is an exploded view of one embodiment of a tank assembly 200 according to the present utility model;

FIG. 3 is a cross-sectional view of the tank assembly 200 of FIG. 2; FIG. 4 is a schematic view of the pressure sensor 100 of FIG. 2 assembled to the liquid feeding tube 42 in a horizontal direction; FIG. 5 is a schematic view of the pressure sensor 100 of FIG. 4 assembled to the liquid feeding tube 42 in the up-down direction; FIG. 6 is a cross-sectional view of one embodiment of a pressure sensor 100 according to the present utility model; fig. 7 is an exploded structural view of the pressure sensor 100 of fig. 6.

Referring to fig. 1, the cooking apparatus 1000 includes a liquid container 300 and a liquid storage tank assembly 200, the liquid storage tank assembly 200 includes a base assembly 4, a tank body 5 and a hydraulic pressure detecting device 6, the base assembly 4 includes a tank base 41, the tank body 5 is disposed above the tank base 41, a liquid inlet 51 and a liquid outlet 52 are provided, the hydraulic pressure detecting device 6 is configured to detect the hydraulic pressure in the tank body 5, and the liquid outlet 52 of the liquid storage tank assembly 200 is communicated with the liquid container 300. When automatic cooking is required, the liquid outlet 52 of the case body 5 is controlled to be opened, and a fixed amount of liquid is supplied into the liquid container 300 to perform cooking. After the liquid is conveyed into the liquid container 300, in order to facilitate timely understanding of the liquid residual quantity in the box body 5, the liquid pressure in the box body 5 also changes correspondingly due to the fact that the liquid residual quantity in the box body 5 changes, the liquid pressure in the box body 5 is detected through the liquid pressure detection device 6, the liquid residual quantity change can be fed back timely according to the liquid pressure change in the box body 5, timely liquid supplementing to the box body 5 is facilitated for a user, and the liquid quantity in the liquid container 300 can be accurately metered, so that full-automatic cooking is more intelligent and the cooking effect is better.

Referring to fig. 6 and 7, the pressure sensor 100 includes a housing 1, a diaphragm 2, and a strain sensor assembly 3, the housing 1 has a cavity 11, the housing 1 has a first end 12 and a second end 13, the cavity 11 is disposed through the first end 12, the diaphragm 2 is disposed in the cavity 11 and between the first end 12 and the second end 13, the cavity 11 is divided into a first chamber 111 communicating with the first end 12 and a second chamber 112 disposed in a sealing manner, the strain sensor assembly 3 includes at least a deformation portion 3a and a detection portion 3b, the deformation portion 3a is disposed in the second chamber 112, and the detection portion 3b is configured to detect a pressure change in the second chamber 112 through the deformation portion 3 a.

In the present utility model, the cavity 11 is partitioned into the first chamber 111 and the second chamber 112, which are in communication with the first end 12, by the diaphragm 2, and the first chamber 111 is in communication with the first end 12, and when the pressure sensor 100 detects the hydraulic pressure, the liquid enters the first chamber 111 from the first end 12, the liquid presses the diaphragm 2 toward the second chamber 112, and the liquid pressure changes with the change of the remaining liquid, and as the liquid pressure changes, the deformation size of the diaphragm 2 pressed changes with the change of the liquid pressure, and as the liquid presses the diaphragm 2 toward the second chamber 112, and deforms the diaphragm 2 toward the second chamber 112, the diaphragm 2 presses the gas in the second chamber 112, and the gas pressure of the second chamber 112 changes, and when the gas pressure in the second chamber 112 changes, the deformation portion 3a of the strain sensor element 3 is arranged in the second chamber 112, and the deformation portion 3b changes according to the change of the detected gas pressure. The pressure sensor 100 has high detection precision and can measure small changes of pressure, and the pressure sensor 100 can be used for accurately detecting the liquid residual quantity in the liquid container, so that a user can conveniently supplement liquid to the liquid container in time, and the user experience is improved. In addition, through the accurate detection of liquid surplus, the liquid volume that can also accurate measurement liquid container flow out, the convenient accurate liquid volume of controlling liquid container to liquid container transport, pressure sensor 100 is used for cooking utensil 1000, and liquid container be the water tank, when the liquid container is the cooking pan, can accurate measurement enter into the water yield in the cooking pan, and then the rice water ratio of control culinary art usefulness for full-automatic cooking is more intelligent, and the culinary art effect is better.

In order to realize that the detecting portion 3b is configured to detect the pressure change of the second chamber 112 by using the deformation portion 3a, the strain sensor assembly 3 is not limited in particular, in this embodiment, the strain sensor assembly 3 includes a resistance strain gauge 31 and a circuit board 32, the resistance strain gauge 31 is disposed in the second chamber 112, the deformation portion 3a is formed on the resistance strain gauge 31, when the hydraulic pressure applied to the diaphragm 2 changes, the diaphragm 2 presses the second chamber 112 to enable the volume of the gas in the second chamber 112 to change, the resistance strain gauge 31 disposed in the second chamber 112 deforms under the action of the air pressure, the resistance of the resistance strain gauge 31 changes, the circuit board 32 is electrically connected to the resistance strain gauge 31, and when the resistance of the resistance strain gauge 31 changes, a corresponding voltage changes, the circuit board 32 processes and outputs a voltage signal, thereby detecting the residual hydraulic pressure change.

Because the membrane 2 deforms and extrudes the second chamber 112 when being extruded by liquid, in order to improve the accuracy of hydraulic detection, in this embodiment, the first end 12 and the second end 13 are oppositely arranged, the resistance strain gauge 31 is arranged on the wall of the second chamber 112 away from the first chamber 111, so that the resistance strain gauge 31 and the membrane 2 are oppositely arranged, each part in the shell 1 is in a symmetrical structure, the resistance strain gauge 31 is more uniformly stressed by gas, and the detection accuracy is higher.

The specific position of the circuit board 32 is not limited, in this embodiment, the circuit board 32 is disposed in the second cavity 112 and is located at a side of the resistance strain gauge 31 away from the first end 12, in other embodiments, the circuit board 32 may be disposed in other positions of the second cavity 112, and the circuit board 32 may be electrically connected to the resistance strain gauge 31.

In order to facilitate the circuit board 32 to send out the voltage signal, in an embodiment, the strain sensor assembly 3 further includes a wireless transmitting module and a wireless receiving module, where the wireless transmitting module is disposed on the housing 1 and electrically connected to the circuit board 32, and the wireless receiving module is disposed at a position where the signal needs to be received, so as to receive the signal sent by the wireless transmitting module. In another embodiment, the strain sensor assembly 3 further includes a connector 34 disposed on the housing 1 and electrically connected to the circuit board 32, wherein the connector 34 can be connected to an external connector 34 to facilitate signal transmission.

Because pressure sensor 100 is used for detecting the hydraulic pressure in the container, and the external atmospheric pressure that is located is different, and the liquid level of liquid contact external atmosphere can receive atmospheric pressure's influence, the pressure that diaphragm 2 receives includes hydraulic pressure and atmospheric pressure, diaphragm 2 atress deformation extrusion the gas of second cavity 112, gaseous and then extrusion deformation portion 3a, in order to avoid atmospheric pressure to influence pressure sensor 100's detection precision, strain sensor subassembly 3 includes strain sensor main part 33, strain sensor main part 33 locates second cavity 112, detection portion 3b locates strain sensor main part 33, deformation portion 3a locates strain sensor main part 33 orientation one side of first cavity 111, strain sensor main part 33 is equipped with a projection 331, projection 331 runs through cavity 11's second end 13, and the terminal surface of projection 331 is equipped with a pneumatic orifice 331a, projection 331 direct contact external atmosphere hole, through strain sensor main part 33 a makes atmospheric pressure to be close to the atmospheric pressure that the atmospheric pressure is passed on by the pressure sensor main part 3a, and the atmospheric pressure is offset from the atmospheric pressure is passed on to the two sides to the deformation portion 3a, and the atmospheric pressure is different from the atmospheric pressure, and the atmospheric pressure is passed on by the opposite atmospheric pressure sensor main part 331a, and the atmospheric pressure is avoided atmospheric pressure to be passed on by the atmospheric pressure.

In order to mount the diaphragm 2 and the strain sensor body 33 to the housing 1, the specific mounting manner is not limited, in this embodiment, the side wall of the cavity 11 is provided with a step along the direction from the first end 12 to the second end 13, the step extends circumferentially along the side wall of the cavity 11, and the step is disposed corresponding to the position of the diaphragm 2, the diaphragm 2 is disposed at the step and is pressed against the diaphragm 2 by a fixing member, and the fixing member is not limited, in this embodiment, the fixing member includes an annular seal ring, and the annular seal ring fastens the diaphragm 2 at the step. The fixing piece is in sealing connection with the cavity 11, and in order to guarantee sealing and fixing effects, the fixing piece is in interference fit with the side wall of the cavity 11. The strain sensor body 33 is disposed in the second chamber 112, and the second end 13 of the housing 1 is filled with a sealant to seal the second end 13, so as to form a sealed second chamber 112, in order to satisfy the sealing property of the second chamber 112. In this embodiment, in order to fasten the fixing member and thus the diaphragm 2, the strain sensor body 33 includes a fixing portion that extends toward the fixing member and abuts the fixing member at the step.

The utility model further provides a liquid storage tank assembly 200, referring to fig. 2 and 3, the liquid storage tank assembly 200 is used in a cooking appliance 1000, the liquid storage tank assembly 200 comprises a base assembly 4, a tank body 5 and a hydraulic pressure detection device 6, the base assembly 4 comprises a tank base 41, the tank body 5 is arranged above the tank base 41, a liquid inlet 51 and a liquid outlet 52 are formed, and the hydraulic pressure detection device 6 is used for detecting the hydraulic pressure in the tank body 5.

When the liquid allowance in the box body 5 changes, the hydraulic pressure born by the fixed position also changes, the hydraulic pressure detection device 6 is used for detecting the hydraulic pressure in the box body 5, and the small change of the liquid allowance in the box body 5 is obtained by measuring the small change of the hydraulic pressure, so that a user can conveniently supplement the liquid to the box body 5 in time, and the user experience is improved.

The hydraulic pressure detecting device 6 for detecting the hydraulic pressure in the tank body 5 is various, and in particular, not limited thereto, in the present utility model, the hydraulic pressure detecting device 6 includes the above-mentioned pressure sensor 100, and the first chamber 111 of the pressure sensor 100 is in communication with the tank body 5. Because the hydraulic pressure detecting device 6 includes the pressure sensor 100, the specific structure of the pressure sensor 100 refers to the above embodiment, and because the pressure sensor 100 adopts all the technical solutions of all the above embodiments, at least the technical solutions of the above embodiments have all the beneficial effects, which are not described in detail herein.

The specific position of the pressure sensor 100 corresponding to the tank body 5 is not limited, and the liquid pressure in the tank body 5 can be detected, specifically, in this embodiment, the first chamber 111 of the pressure sensor 100 is communicated with the liquid outlet 52, and the first chamber 111 is not required to be additionally provided with a structure to be communicated with the tank body 5, and is directly communicated with the liquid outlet 52 inherent to the tank body 5, so that the liquid pressure is measured, and the structure is simple and the operation is convenient. Further, the pressure sensor 100 is disposed on the housing base 41, and when the liquid outlet 52 is opened due to gravity, the liquid in the housing body 5 flows downward, flows to the first chamber 111 of the pressure sensor 100 through the liquid outlet 52, and contacts and hydraulically presses the diaphragm 2.

Referring to fig. 4 and 5, the pressure sensor 100 is disposed on the housing base 41, the liquid flows into the first chamber 111 for hydraulic pressure detection, the placement position of the pressure sensor 100 is not limited, in an embodiment, the first end 12 to the second end 13 of the housing 1 may extend vertically, in another embodiment, the first end 12 to the second end 13 of the housing 1 may also be disposed obliquely vertically, and the specific setting angle and the specific setting direction are not limited. In daily use, the tank body 5 does not always hold liquid, or the liquid outlet 52 of the tank body 5 does not always remain in communication with the pressure sensor 100, so that the first chamber 111 of the pressure sensor 100 may be empty of liquid before the hydraulic pressure is detected, and the first chamber 111 is air. When the liquid outlet 52 is communicated with the pressure sensor 100, the liquid in the tank body 5 flows into the first chamber 111 through the liquid outlet 52, and the air in the first chamber 111 may be not smoothly discharged and blocked in the first chamber 111, thereby affecting the hydraulic accuracy detected by the pressure sensor 100. In order to facilitate the evacuation of the gas retained in the first chamber 111, in this embodiment, the first end 12 to the second end 13 of the housing 1 extend in a horizontal direction, so as to facilitate the evacuation of the gas. The horizontal direction is not limited to be completely parallel, and may have a certain inclination angle.

In order to facilitate the user to add liquid to the tank body 5, in this embodiment, the tank body 5 is detachably mounted on the tank base 41. When the liquid needs to be added, the box body 5 is detached and taken down, and after the addition is completed, the box body 5 is placed on the box body base 41 again.

In order to send liquid to the liquid container 300, the base assembly 4 further includes a liquid sending pipe 42 mounted on the box base 41, the liquid sending pipe 42 is formed with a flow channel 421 and a liquid sending port 422 communicating with the flow channel 421, the liquid sending port 422 is disposed in communication with the liquid outlet 52, and the hydraulic pressure detecting device 6 is disposed corresponding to the flow channel 421 and is used for detecting the hydraulic pressure in the flow channel 421. When the liquid container 300 needs to be replenished with liquid, the liquid in the tank body 5 flows into the liquid feeding pipe 42 from the liquid outlet 52, and flows into the liquid container 300 from the other end of the liquid feeding pipe 42, so that the liquid can be conveyed into the liquid container 300 to realize liquid feeding. The hydraulic pressure detection device 6 is provided corresponding to the flow path 421, and detects a change in the liquid level in the tank body 5 by detecting a change in the hydraulic pressure in the flow path 421. In this embodiment, the tank body 5 is detachably mounted on the tank base 41, and when the tank body 5 needs to be transported or replenished with liquid, the tank body 5 is separated from the tank base 41, and at this time, the hydraulic detection device 6 is disconnected from the tank body 5, so that hydraulic detection is not required. When the liquid level needs to be detected or the liquid needs to be sent to the liquid container 300, the tank body 5 is mounted on the tank base 41, the liquid outlet 52 is opened, the liquid flows downwards from the liquid outlet 52 into the flow channel 421, and the hydraulic pressure detecting device 6 detects the hydraulic pressure in the flow channel 421 to further detect the hydraulic pressure change in the tank body 5, so as to obtain the liquid level change in the tank body 5. The other end of the flow channel 421 away from the liquid outlet 52 is used for communicating with the liquid container 300, so as to facilitate liquid delivery.

Specifically, the liquid outlet 52 is disposed at the bottom of the tank body 5, and when the liquid outlet 52 is communicated with the liquid container 300, the liquid in the tank body 5 can flow from the liquid outlet 52 into the liquid feeding pipe 42 and into the liquid container 300 by gravity of the liquid. The liquid outlet 52 is provided with a check valve 7, the check valve 7 is provided with a liquid conveying channel 71 extending up and down, one end of the liquid conveying channel 71 is communicated with the liquid outlet 52, and the other end is communicated with the liquid conveying pipe 42. The check valve 7 controls the opening and closing of the liquid outlet 52, so that the use of liquid is convenient to control. It should be noted that, in this embodiment, the tank body 5 is detachably mounted on the tank base 41, and when the tank body 5 is detached from the tank base 41, the liquid outlet 52 is closed by the check valve 7, so as to avoid waste and cleaning inconvenience caused by outflow of liquid.

The check valve 7 is various, and particularly, but not limited to, for conveniently opening and closing the liquid outlet 52, an elastic sealing member 72 is movably disposed on the check valve 7 for opening and closing the liquid feeding channel 71, and a driving member 43 is disposed on the base assembly 4 corresponding to the check valve 7 for driving the elastic sealing member 72 to move. The driving member 43 and the elastic sealing member 72 are not particularly limited, and in this embodiment, the check valve 7 is movably covered by the elastic sealing member 72 to open and close the upper end of the liquid feeding channel 71, and the driving member 43 extends upward to extend into the liquid feeding channel 71 and push the elastic sealing member 72 upward to open the liquid feeding channel 71, because the liquid outlet 52 is disposed at the bottom of the tank body 5. Therefore, when the box body 5 is mounted on the box body base 41, the driving piece 43 stretches into the liquid conveying channel 71 upwards and pushes the elastic sealing piece 72 upwards, the liquid conveying channel 71 is opened, automatic opening of the liquid outlet 52 is achieved, when the box body 5 is dismounted from the box body base 41, the elastic sealing piece 72 loses the upward pushing force of the driving piece 43 on the box body, under the elastic restoring action, the elastic sealing piece 72 resets to close the liquid outlet 52, the liquid outlet 52 is automatically closed, and liquid in the box body 5 is prevented from leaking. In other embodiments, the check valve 7 may be configured to be opened and closed manually, or may be configured to be opened and closed by a controller, which is not limited in particular.

The tank assembly 200 may store a plurality of liquids, and the tank assembly 200 may include a water tank for storing water, and the tank assembly 200 may also include a fuel tank for storing fuel, without limitation.

The present utility model further provides a cooking appliance 1000, referring to fig. 1, the cooking appliance 1000 includes a liquid container 300 and the above-mentioned liquid storage tank assembly 200, and the liquid storage tank assembly 200 is communicated with the liquid container 300, and since the cooking appliance 1000 includes the liquid storage tank assembly 200, the specific structure of the liquid storage tank assembly 200 refers to the above-mentioned embodiment, and since the liquid storage tank assembly 200 of the cooking appliance 1000 adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are not repeated herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A pressure sensor, comprising:

2. The pressure sensor of claim 1, wherein the strain sensor assembly comprises:

3. The pressure sensor of claim 2, wherein the first end and the second end are disposed opposite;

4. The pressure sensor of claim 3, wherein the circuit board is disposed in the second chamber on a side of the resistive strain gauge facing away from the first end.

5. The pressure sensor of any one of claims 1 to 4, wherein the strain sensor assembly comprises a strain sensor body provided in the second chamber, the detection portion is provided in the strain sensor body, and the deformation portion is provided on a side of the strain sensor body facing the first chamber;

6. A tank assembly for use in a cooking appliance, comprising:

the base assembly comprises a box base;

the hydraulic pressure detection device is used for detecting the hydraulic pressure in the box body;

wherein the hydraulic pressure detecting device includes the pressure sensor according to any one of claims 1 to 5, the first chamber of the pressure sensor being in communication with the tank body.

7. The tank assembly of claim 6, wherein the first chamber is in communication with the outlet.

8. A tank assembly as claimed in claim 7, wherein the pressure sensor is provided in the tank base.

9. A tank assembly as claimed in claim 8, wherein the first end to the second end of the housing are disposed extending in a horizontal direction.

10. A tank assembly as recited in claim 6, wherein the tank body is removably mounted to the tank base.

11. The tank assembly of claim 6, wherein the base assembly further comprises a liquid feed pipe mounted on the tank base, the liquid feed pipe being formed with a flow channel and a liquid feed port in communication with the flow channel, the liquid feed port being in communication with the liquid outlet;

12. A tank assembly according to claim 11, wherein the outlet is provided in the bottom of the tank body;

13. A tank assembly according to claim 12, wherein the check valve is movably provided with a resilient seal for opening and closing the feed passage;

14. A tank assembly according to claim 13, wherein said resilient seal movably covers said check valve for opening and closing the upper end of said feed passage;

15. The reservoir assembly of claim 6, wherein the reservoir assembly comprises a water tank.

16. A cooking appliance, comprising:

a liquid container; the method comprises the steps of,

a tank assembly as claimed in any one of claims 6 to 15, which communicates with the use container.