CN220380576U

CN220380576U - Hydraulic pressure detection device, liquid reserve tank assembly and cooking utensil

Info

Publication number: CN220380576U
Application number: CN202321609300.0U
Authority: CN
Inventors: 李家孔; 秦伟伟; 周毅; 周忠宝; 利耀东; 卢汉伟
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: 2024-01-23
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a hydraulic detection device, a liquid storage tank assembly and a cooking utensil, wherein the hydraulic detection device comprises a pressure sensor and a connecting pipe, one end of the connecting pipe is communicated with the pressure sensor, and the other end of the connecting pipe is used for extending into liquid. Through the accurate detection of liquid surplus, can also accurate measurement liquid container outflow's liquid volume, hydraulic pressure detection device is used for cooking utensil, through the variation that detects liquid in the liquid container, can accurate measurement enter into the liquid in the cooking pot for full-automatic cooking is more intelligent, and the culinary art effect is better.

Description

Hydraulic pressure detection device, liquid reserve tank assembly and cooking utensil

Technical Field

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

Background

Full automatic cooking appliances all have a container for independently holding liquid, and the product needs to measure the amount of 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 hydraulic detection device, 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.

In order to achieve the above object, the present utility model provides a hydraulic pressure detecting device comprising:

a pressure sensor; the method comprises the steps of,

one end of the connecting pipe is communicated with the pressure sensor, and the other end of the connecting pipe is used for extending into the liquid.

Optionally, the connecting pipe comprises a first pipe section and a second pipe section, wherein the first pipe section extends upwards from the pressure sensor, one end of the second pipe section is communicated with the upper end of the first pipe section, and the other end of the second pipe section extends downwards to extend into the liquid.

Optionally, the pressure sensor includes:

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, the cavity is divided into a first cavity communicated with the first end and a second cavity which is hermetically arranged, and the first cavity is used for being communicated with the connecting pipe; 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 strain sensor assembly further comprises:

the wireless transmission module is electrically connected with the circuit board; the method comprises the steps of,

and the wireless receiving module is used for receiving the transmission signal of the wireless transmitting module.

Optionally, the strain sensor assembly further comprises:

the first connector is electrically connected with the circuit board;

and the second connector is coupled with the first connector.

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.

Optionally, a tank assembly for use in a cooking appliance, the tank assembly comprising:

the base assembly comprises a box base;

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

the hydraulic pressure detection device is arranged on the box body, one end of the connecting pipe is communicated with the pressure sensor, and the other end of the connecting pipe stretches into the accommodating cavity and is close to the bottom of the accommodating cavity.

Optionally, the connecting pipe comprises a first pipe section and a second pipe section, the first pipe section extends upwards from the pressure sensor, one end of the second pipe section is communicated with the upper end of the first pipe section, and the other end of the second pipe section extends downwards to extend into the accommodating cavity and is close to the bottom of the accommodating cavity;

the upper end of the first pipe section is higher than the highest water level line of the liquid level of the accommodating cavity.

Optionally, the distance between one end of the connecting pipe, which is communicated with the accommodating cavity, and the bottom of the accommodating cavity is d,1mm < d <10mm.

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, one end of the liquid feeding pipe is used for being communicated with the liquid outlet, and the other end of the liquid feeding pipe is used for being connected with a liquid container.

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, one end of the connecting pipe is used for extending into liquid, when the liquid quantity and the liquid level are changed, the hydraulic pressure borne by one end of the connecting pipe extending into the liquid is changed, the other end of the connecting pipe is communicated with the pressure sensor, the connecting pipe transmits the hydraulic pressure to the pressure sensor, and the pressure sensor detects the liquid level change of the liquid by detecting the pressure change, so that the change of the liquid quantity is obtained. Through the accurate detection of liquid surplus, can also accurate measurement liquid container outflow's liquid volume, the convenient accurate liquid volume of controlling liquid container to liquid container transport, hydraulic pressure detection device is used for cooking utensil to detect the variation of liquid in the liquid container, when the liquid container includes the water tank, when the liquid container includes the cooking pan with the liquid container, 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 a perspective view of one embodiment of a tank assembly according to the present utility model;

FIG. 3 is a perspective view of the tank assembly of FIG. 2 in another orientation;

FIG. 4 is an exploded view of the tank assembly of FIG. 2;

FIG. 5 is a cross-sectional view of the tank assembly of FIG. 4;

FIG. 6 is an exploded view of another embodiment of the tank assembly of FIG. 4;

FIG. 7 is a cross-sectional view of the tank assembly of FIG. 6;

fig. 8 is a schematic structural view of the hydraulic pressure detecting device of the present utility model.

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 the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

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 hydraulic pressure detecting device, a liquid storage tank assembly 100 and a cooking apparatus 1000, and fig. 1 is a perspective view of an embodiment of the cooking apparatus 1000 according to the present utility model;

FIG. 2 is a perspective view of one embodiment of a tank assembly 100 according to the present utility model; FIG. 3 is a perspective view of the tank assembly 100 of FIG. 2 in another orientation; fig. 4 is an exploded view of the tank assembly 100 of fig. 2; FIG. 5 is a cross-sectional view of the tank assembly 100 of FIG. 4; fig. 6 is an exploded view of another embodiment of the tank assembly 100 of fig. 4; FIG. 7 is a cross-sectional view of the tank assembly 100 of FIG. 6; fig. 8 is a schematic structural view of the hydraulic pressure detecting device 3 of the present utility model.

Referring to fig. 1, the cooking apparatus 1000 includes a liquid container 200 and a liquid storage tank assembly 100, the liquid storage tank assembly 100 is connected to the liquid container 200, the liquid storage tank assembly 100 includes a base assembly 1, a tank body 2 and a hydraulic detection device 3, the base assembly 1 includes a tank base 11, the tank body 2 is disposed above the tank base 11, the tank body 2 has a containing cavity 21 for containing liquid, the tank body 2 is provided with a liquid inlet 22 and a liquid outlet 23, the hydraulic detection device 3 includes a pressure sensor 31 and a connecting pipe 32, one end of the connecting pipe 32 is connected to the pressure sensor 31, the other end is used for extending into the liquid, the hydraulic detection device 3 is disposed on the tank body 2, one end of the connecting pipe 32 is connected to the pressure sensor 31, the other end extends into the containing cavity 21 and is close to the bottom of the containing cavity 21, when automatic cooking is required, the liquid outlet 23 of the tank body 2 can be opened, and a fixed amount of liquid is conveyed into the liquid container 200 for performing a cooking process. In order to be convenient for in time know the liquid surplus in holding the chamber 21 of case body 2, because along with holding the liquid surplus in chamber 21 changes, hold the hydraulic pressure in chamber 21 corresponding position and also can change correspondingly, connecting pipe 32 is kept away from hold the other end intercommunication of chamber 21 pressure sensor 31, connecting pipe 32 will hydraulic pressure transfer extremely pressure sensor 31, pressure sensor 31 is through detecting pressure variation and then detecting liquid level height variation in holding the chamber 21, thereby obtain hold the change of the liquid surplus in the chamber 21, the user of being convenient for in time supplies liquid extremely hold in the chamber 21, can accurate measurement enter into with the liquid volume in the liquid container 200 for full-automatic cooking is more intelligent, and the culinary art effect is better.

Referring to fig. 8, the hydraulic pressure detecting device 3 includes a pressure sensor 31 and a connection pipe 32, wherein one end of the connection pipe 32 is connected to the pressure sensor 31, and the other end is used for extending into the liquid.

In the technical scheme of the utility model, one end of the connecting pipe 32 is used for extending into the liquid, when the liquid amount changes and the liquid level changes, the hydraulic pressure applied to one end of the connecting pipe 32 extending into the liquid changes, the other end of the connecting pipe 32 is communicated with the pressure sensor 31, the connecting pipe 32 transmits the hydraulic pressure to the pressure sensor 31, and the pressure sensor 31 detects the liquid level change of the liquid by detecting the pressure change, so as to obtain the change of the liquid amount. Through the accurate detection of liquid surplus, can also accurate measurement liquid container outflow's liquid volume, the convenient accurate liquid volume of controlling liquid container to liquid container transport, hydraulic pressure detection device 3 is used for cooking utensil to detect the variation of liquid in the liquid container, when the liquid container includes the water tank, when the liquid container includes the cooking pan with the liquid container, 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 pressure sensor 31 detects the hydraulic pressure in the liquid, referring to fig. 5 and 6, in this embodiment, the connecting pipe 32 includes a first pipe section 321 and a second pipe section 322, the first pipe section 321 extends upward from the pressure sensor 31, one end of the second pipe section 322 is connected to the upper end of the first pipe section 321, and the other end extends downward into the liquid. Through first pipeline section 321 upwards extends to second pipeline section 322, second pipeline section 322 downwardly extending reaches and stretches into in the liquid form the gas section in the connecting pipe 32, when liquid level of liquid changes, the one end that second pipeline section 322 stretches into the liquid receives hydraulic pressure to change, hydraulic pressure extrusion gas in the connecting pipe 32 for gas volume changes, first pipeline section 321 keeps away from the one end intercommunication of second pipeline section 322 pressure sensor 31, when gas volume changes, pressure sensor 31 detects the pressure variation of giving vent to anger, and then obtain the hydraulic pressure change of corresponding position in the liquid according to the atmospheric pressure change to obtain liquid level change of liquid. The micro change of the liquid quantity is obtained according to the change of the liquid level, so that a user can conveniently and timely supplement the liquid into the accommodating cavity 21, and meanwhile, the quantity of the liquid flowing out can be accurately measured.

The pressure sensor 31 is not limited to a specific type, in this embodiment, the pressure sensor 31 includes a housing 311, a diaphragm 312, and a strain sensor assembly 313, the housing 311 has a cavity 3111, the housing 311 has a first end 3112 and a second end 3113, the cavity 3111 is disposed through the first end 3112, the diaphragm 312 is disposed between the first end 3112 and the second end 3113, the cavity 3111 is partitioned into a first chamber 3111a communicating with the first end 3112 and a second chamber 3111b disposed in a sealing manner, the first chamber 3111a is used for communicating with the connecting tube 32, the strain sensor assembly 313 includes at least a deformation portion 313a and a detection portion 313b, the deformation portion 313a is disposed in the second chamber 3111b, and the detection portion 313b is used for detecting a pressure change of the second chamber 3111b through the deformation portion 313 a.

The cavity 3111 is partitioned into the first chamber 3111a and the second chamber 3111b, which are communicated with the first end 3112, by the diaphragm 312, since the first end 3112 is disposed through and the first chamber 3111a is communicated with the first end 3112, when the level of the liquid changes, the hydraulic pressure at the end of the connecting tube 32 extending into the liquid changes to press the gas in the connecting tube 32, the gas is communicated with the first chamber 3111a, when the volume of the gas pressed changes, the deformation of the diaphragm 312 due to the pressing also changes, and the diaphragm 312 presses the gas in the second chamber 3111b, so that the gas pressure in the second chamber 3111b changes, the deformation portion 313a of the strain sensor assembly 313 is disposed in the second chamber 3111b, when the gas pressure in the second chamber 3111b changes, the deformation portion 313a changes due to the action of the gas pressure, and the detection portion 313b changes according to the change of the pressure of the liquid level, and the change of the liquid level is detected by the detection portion 313 a. The pressure sensor 31 has high detection precision and can measure the tiny change of pressure, and the pressure sensor 31 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. The pressure sensor 31 can measure small changes in air pressure and also can measure small changes in hydraulic pressure, and when detecting changes in hydraulic pressure at the end of the connecting pipe 32 extending into the liquid, the accuracy is high and the reliability is high.

In order to realize that the detecting portion 313b is configured to detect the pressure change of the second chamber 3111b by using the deformation portion 313a, the strain sensor assembly 313 is not limited in particular, in this embodiment, the strain sensor assembly 313 includes a resistance strain gauge 3131 and a circuit board 3132, the resistance strain gauge 3131 is disposed in the second chamber 3111b, the deformation portion 313a is formed on the resistance strain gauge 3131, when the pressure of the diaphragm 312 changes, the diaphragm 312 presses the second chamber 3111b to change the volume of the gas in the second chamber 3111b, the resistance strain gauge 3131 disposed in the second chamber 3111b deforms under the action of the air pressure, the resistance of the resistance strain gauge 3131 changes, the detecting portion 313b is formed on the circuit board 3132, the circuit board 3132 is electrically connected to the resistance strain gauge 3131, and a circuit is formed, when the resistance of the resistance strain gauge 3131 changes, the corresponding to the voltage change, the circuit board 3132 detects the change in the volume of the gas, and further detects the liquid from the liquid by processing the liquid, and thus the liquid is detected.

In order to facilitate the circuit board 3132 to send out a voltage signal, in an embodiment, referring to fig. 4 and 5, the strain sensor assembly 313 further includes a wireless transmitting module 3133 and a wireless receiving module 3134, wherein the wireless transmitting module 3133 is electrically connected to the circuit board 3132, and the wireless receiving module 3134 is configured to receive the signal sent by the wireless transmitting module 3133. In another embodiment, referring to fig. 7 and 8, the strain sensor assembly 313 further includes a first connector 3135 and a second connector 3136, the first connector 3135 is electrically connected to the circuit board 3132, and the second connector 3136 is coupled to the first connector 3135 to facilitate signal transmission.

Since the diaphragm 312 deforms and presses the second chamber 3111b when pressed by gas, in order to improve the accuracy of hydraulic pressure detection, in this embodiment, the first end 3112 and the second end 3113 are disposed opposite to each other, the resistance strain gauge 3131 is disposed on a wall of the second chamber 3111b far away from the first chamber 3111a, so that the resistance strain gauge 3131 and the diaphragm 312 are disposed opposite to each other, so that each component in the housing 311 is in a symmetrical structure, the resistance strain gauge 3131 is subjected to more uniform gas pressure, and the detection accuracy is higher.

The specific position of the circuit board 3132 is not limited, in this embodiment, the circuit board 3132 is disposed in the second cavity 3111b and is located at a side of the resistance strain gauge 3131 away from the first end 3112, and in other embodiments, the circuit board 3132 may be disposed at other positions of the second cavity 3111b, and the circuit board 3132 may be electrically connected to the resistance strain gauge 3131.

Because the pressure sensor 31 is used for detecting the hydraulic pressure in the container, the external atmospheric pressure is different, the liquid level of the liquid contacting the external atmosphere is affected by the atmospheric pressure, one end of the liquid is stretched into, the pressure borne by the gas in the connecting pipe 32 comprises hydraulic pressure and atmospheric pressure, and further, the pressure transmitted to the diaphragm 312 comprises hydraulic pressure and atmospheric pressure, the diaphragm 312 is forced to deform and squeeze the gas in the second chamber 3111b, the gas further extrudes the deformation portion 313a, in order to avoid the influence of the atmospheric pressure on the detection precision of the pressure sensor 31, the strain sensor assembly 313 comprises a strain sensor main body 3137, the strain sensor main body 3137 is arranged in the second chamber 3111b, the detection portion 313b is arranged in the strain sensor main body 3137, the deformation portion 313a is arranged on one side of the strain sensor main body 3137 towards the first chamber 3111a, the boss 31371 is arranged on the strain sensor main body 37, the gas penetrates through the chamber 3111a second end face and the deformation portion 313a, the atmospheric pressure is not influenced by the atmospheric pressure, the atmospheric pressure is prevented from being transmitted to the other end face of the boss 313a, and the atmospheric pressure is prevented from being directly influenced by the atmospheric pressure, and the atmospheric pressure is prevented from being transmitted to the two sides of the boss 313a, and the atmospheric pressure is influenced by the atmospheric pressure is prevented from being directly deformed from being influenced by the atmospheric pressure.

In order to mount the diaphragm 312 and the strain sensor body 3137 on the housing 311, the specific mounting manner is not limited, in this embodiment, a step is provided on a sidewall of the cavity 3111 along a direction from the first end 3112 to the second end 3113, the step extends circumferentially along the sidewall of the cavity 3111, and the step is disposed corresponding to the position of the diaphragm 312, the diaphragm 312 is disposed at the step and is pressed against the diaphragm 312 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 secures the diaphragm 312 at the step. The fixing piece is in sealing connection with the cavity 3111, and in order to guarantee sealing and fixing effects, the fixing piece is in interference fit with the side wall of the cavity 3111. The strain sensor body 3137 is disposed in the second chamber 3111b, and the second end 3113 of the housing 311 is filled with a sealant to seal the second end 3113, so as to form a sealed second chamber 3111b. In this embodiment, to secure the mount and thus the diaphragm 312, the strain sensor body 3137 includes a mount portion that extends toward the mount and abuts the mount at the step.

The present utility model further provides a tank assembly 100, referring to fig. 2 to 4, the tank assembly 100 includes a base assembly 1, a tank body 2 and the above-mentioned hydraulic detection device 3, the base assembly 1 includes a tank base 11, the tank body 2 is disposed above the tank base 11, the tank body 2 has a containing cavity 21 for containing liquid, the tank body 2 is provided with a liquid inlet 22 and a liquid outlet 23, the hydraulic detection device 3 is disposed on the tank body 2 for detecting the hydraulic pressure of the containing cavity 21, one end of the connecting pipe 32 is communicated with the pressure sensor 31, and the other end extends into the containing cavity 21 and is close to the bottom of the containing cavity 21, and because the tank assembly 100 includes the hydraulic detection device 3, the specific structure of the hydraulic detection device 3 refers to the above-mentioned embodiment, and since the hydraulic detection device 3 of the tank assembly 100 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.

When the liquid is required to be output, the liquid outlet 23 of the tank body 2 is opened to communicate with the liquid container 200, and the liquid is supplied into the liquid container 200 to perform a cooking process, and when the liquid in the accommodating chamber 21 is required to be replenished, the liquid is replenished to the accommodating chamber 21 through the liquid inlet 22. Because the liquid pressure that holds in the chamber 21 changes, fixed position receives also changes thereupon, connecting pipe 32 one end intercommunication pressure sensor 31, the other end stretches into hold the chamber 21 and be close to hold the bottom of chamber 21, connecting pipe 32 will hydraulic pressure transfer extremely pressure sensor 31, pressure sensor 31 is through detecting pressure variation and then detecting hold the interior liquid level height variation of chamber 21 to obtain hold the change of chamber 21 interior liquid pressure, the user of being convenient for in time supplements liquid extremely hold in the chamber 21, improve user experience, simultaneously, can accurate measurement enter into the liquid volume in the cooking pan for full-automatic cooking is more intelligent, and the culinary art effect is better.

In order to ensure that an air section is formed in the connecting pipe 32, the connecting pipe 32 comprises a first pipe section 321 and a second pipe section 322, the first pipe section 321 extends upwards from the pressure sensor 31, one end of the second pipe section 322 is communicated with the upper end of the first pipe section 321, the other end of the second pipe section extends downwards to extend into the accommodating cavity 21 and is close to the bottom of the accommodating cavity 21, and the upper end of the first pipe section 321 is higher than the highest water level line of the liquid level of the accommodating cavity 21. If the upper end of the first pipe section 321 is lower than the highest water level line of the liquid level in the accommodating cavity 21, when the liquid level in the accommodating cavity 21 is higher than the upper end of the first pipe section 321, the liquid in the accommodating cavity 21 may enter the connecting pipe 32 through the second pipe section 322, so that the air section in the connecting pipe 32 is unstable, and the accuracy of the pressure change detected by the pressure sensor 31 is affected.

It should be noted that, the end of the second pipe section 322 extending into the accommodating cavity 21 needs to be close to the bottom of the accommodating cavity 21, the second pipe section 322 is communicated with the end of the accommodating cavity 21 and the bottom distance of the accommodating cavity 21 is d, the bottom distance is too large, when the liquid residual amount in the accommodating cavity 21 is less, the liquid level may be lower than the extending end of the second pipe section 322, so that the liquid pressure cannot be detected, the bottom distance is too small, and impurities or other objects possibly existing at the bottom of the accommodating cavity 21 easily block the second pipe section 322, thereby affecting the hydraulic pressure detection. In this embodiment, the bottom distance satisfies 1mm < d <10mm, and in other embodiments, the bottom distance may be adjusted according to actual needs. Further, the bottom distance may also be used as a reference for the lowest water level line of the liquid level in the accommodating cavity 21, and when the pressure sensor 31 detects that the end of the second pipe section 322 extending into the accommodating cavity 21 is free of liquid, it indicates that the liquid level is lower than the lowest water level line at this time, and the bottom distance may be used as an alarm line for alarming during the use of the cooking apparatus 1000.

In order to facilitate the user to add liquid to the tank body 2, in this embodiment, the tank body 2 is detachably mounted on the tank base 11. When liquid addition is needed, the box body 2 is detached and taken down, and after the addition is completed, the box body 2 is placed on the box body base 11 again.

In order to send liquid to the liquid container 200, the base assembly 1 further includes a liquid sending pipe 12 mounted on the base 11 of the box body, wherein one end of the liquid sending pipe 12 is used for communicating with the liquid outlet 23, and the other end is used for communicating with the liquid container 200.

In order to send liquid to the liquid container 200, the base assembly 1 further includes a liquid sending pipe 12 mounted on the base 11 of the box body, wherein one end of the liquid sending pipe 12 is used for communicating with the liquid outlet 23, and the other end is used for communicating with the liquid container 200. When the liquid using container 200 needs to be replenished with liquid, the liquid in the accommodating cavity 21 flows into the liquid delivering pipe 12 from the liquid outlet 23, and flows into the liquid using container 200 from the other end of the liquid delivering pipe 12, so that the liquid can be delivered into the liquid using container 200 to realize liquid delivering.

Specifically, the liquid outlet 23 is disposed at the bottom of the tank body 2, and when the liquid outlet 23 is communicated with the liquid container 200, the liquid in the tank body 2 can flow from the liquid outlet 23 into the liquid feeding pipe 12 and into the liquid container 200 by gravity of the liquid. The liquid outlet 23 is provided with a check valve 4, the check valve 4 is provided with a liquid feeding channel 41 which extends up and down, one end of the liquid feeding channel 41 is communicated with the liquid outlet 23, and the other end is communicated with the liquid feeding pipe 12. The check valve 4 controls the liquid outlet 23 to be opened and closed, so that the use of liquid is convenient to control. It should be noted that, in this embodiment, the tank body 2 is detachably mounted on the tank base 11, and when the tank body 2 is detached from the tank base 11, the liquid outlet 23 is closed by the check valve 4, so as to avoid waste and cleaning inconvenience caused by outflow of liquid.

The check valve 4 is various, and particularly, but not limited to, for conveniently opening and closing the liquid outlet 23, an elastic sealing member 42 is movably disposed on the check valve 4 for opening and closing the liquid feeding channel 41, and a driving member 13 is disposed on the base assembly 1 corresponding to the check valve 4 for driving the elastic sealing member 42 to move. The driving member 13 is not limited to a specific one, in this embodiment, since the liquid outlet 23 is disposed at the bottom of the tank body 2, the driving member 13 extends upward to extend into the liquid feeding channel 41 and push the elastic sealing member 42 upward, so as to open the liquid feeding channel 41. From this setting, when the case body 2 install in on the case base 11, the driving piece 13 upwards stretches into send liquid passageway 41 and upwards promote elastic seal piece 42 opens send liquid passageway 41 realizes opening automatically liquid outlet 23, when the case body 2 is dismantled from on the case base 11, elastic seal piece 42 loses driving piece 13 to its upward thrust, under elastic restoring effect, elastic seal piece 42 resets to the closure liquid outlet 23, automatic closure liquid outlet 23 avoids liquid in the case body 2 spills. In other embodiments, the check valve 4 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 100 may store a plurality of liquids, and the tank assembly 100 may include a water tank for storing water, and the tank assembly 100 may also include an oil tank for storing oil, which is not particularly limited.

The present utility model further provides a cooking appliance 1000, referring to fig. 1, the cooking appliance 1000 includes a liquid container 200 and the above-mentioned liquid storage tank assembly 100, and the liquid storage tank assembly 100 is communicated with the liquid container 200, and since the cooking appliance 1000 includes the liquid storage tank assembly 100, the specific structure of the liquid storage tank assembly 100 refers to the above-mentioned embodiment, and since the liquid storage tank assembly 100 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 hydraulic pressure detection device, characterized by comprising:

a pressure sensor; the method comprises the steps of,

one end of the connecting pipe is communicated with the pressure sensor, and the other end of the connecting pipe is used for extending into the liquid;

wherein the pressure sensor comprises:

2. The hydraulic testing device of claim 1, wherein the connecting tube includes a first tube section extending upwardly from the pressure sensor and a second tube section having one end communicating with an upper end of the first tube section and the other end extending downwardly into the fluid.

3. The hydraulic pressure sensing apparatus of claim 1, wherein the strain sensor assembly comprises:

4. The hydraulic pressure sensing apparatus of claim 3, wherein the strain sensor assembly further comprises:

5. The hydraulic pressure sensing apparatus of claim 3, wherein the strain sensor assembly further comprises:

the first connector is electrically connected with the circuit board;

and the second connector is coupled with the first connector.

6. A hydraulic testing device according to claim 3, wherein said first end and said second end are disposed opposite each other;

7. The hydraulic sensing device of claim 6, wherein the circuit board is disposed in the second chamber on a side of the resistive strain gauge facing away from the first end.

8. The hydraulic pressure detection device as recited in claim 1 wherein the strain sensor assembly includes a strain sensor body disposed in the second chamber, the detection portion being disposed in the strain sensor body, the deformation portion being disposed on a side of the strain sensor body facing the first chamber;

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

the base assembly comprises a box base;

the hydraulic pressure detection device according to any one of claims 1 to 8, provided in the tank body, wherein one end of the connecting pipe communicates with the pressure sensor, and the other end extends into the accommodating chamber and is close to the bottom of the accommodating chamber.

10. The tank assembly of claim 9, wherein the connecting tube comprises a first tube section and a second tube section, the first tube section extending upwardly from the pressure sensor, the second tube section having one end communicating with an upper end of the first tube section and the other end extending downwardly to a bottom portion extending into the receiving cavity and adjacent the receiving cavity;

11. A tank assembly according to claim 9, wherein the connecting tube communicates one end of the receiving chamber a distance d,1mm < d <10mm from the bottom of the receiving chamber.

12. A tank assembly as claimed in claim 9, wherein the tank body is detachably mounted to the tank base.

13. The fluid reservoir assembly of claim 9, wherein the base assembly further comprises a fluid delivery tube mounted to the base of the housing, one end of the fluid delivery tube being adapted to communicate with the fluid outlet and the other end of the fluid delivery tube being adapted to communicate with a fluid reservoir.

14. A tank assembly according to claim 13, wherein the outlet is provided in the bottom of the tank body;

15. A tank assembly according to claim 14, wherein the check valve is movably provided with a resilient seal for opening and closing the feed passage;

16. A tank assembly according to claim 15, wherein said resilient seal movably covers said check valve for opening and closing the upper end of said feed passage;

17. A tank assembly according to any one of claims 9 to 16, wherein the tank assembly comprises a water tank.

18. A cooking appliance, comprising:

a liquid container; the method comprises the steps of,

a tank assembly as claimed in any one of claims 9 to 17, which communicates with the use container.