CN217039751U - Temperature sensing assembly and cooking utensil - Google Patents

Abstract

The utility model provides a temperature sensing component and a cooking utensil, wherein the temperature sensing component is a heating disc which is provided with a central hole; a stopper fitted to the central hole; the temperature controllers are indirectly connected with the heating plate and used for detecting the temperature of the heating plate in real time, at least two temperature controllers are included, and the preset temperature threshold values of the temperature controllers are different; the power supply circuit is respectively connected with the heating plate and the temperature controller, and when the temperature controller detects that the temperature exceeds a preset temperature threshold value, the power supply circuit is controlled to be disconnected to supply power to the heating plate so as to avoid the heating plate to continuously generate heat and protect the heating plate in work.

Description

Temperature sensing assembly and cooking utensil

Technical Field

The utility model relates to a temperature sensing subassembly field especially relates to a temperature sensing subassembly and cooking utensil.

Background

For some cooking appliances, such as electric stewpots, the inner container is heated by a heating plate. In order to avoid the electric stewpan from being dry-burned, the temperature sensing assembly is arranged to cut off the power supply after the temperature exceeds the preset temperature.

The traditional temperature sensing assembly is a temperature sensing cup assembly structure (such as a patent No. CN209574229U), and the structure has the problems of high cost, more mounting parts and complex assembly.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a temperature sensing assembly and a cooking utensil, which are simple in structure and easy to assemble.

The utility model provides a temperature sensing assembly, include: the heating plate is provided with a central hole; a stopper fitted to the central hole; the temperature controllers are indirectly connected with the heating plate and used for detecting the temperature of the heating plate in real time, at least two temperature controllers are included, and the preset temperature threshold values of the temperature controllers are different; and the power supply circuit is respectively electrically connected with the heating plate and the temperature controller, and when the temperature controller detects that the temperature exceeds a preset temperature threshold value during work, the power supply circuit is controlled to be disconnected to supply power to the heating plate.

So set up, the temperature controller can real-time detection generate heat the temperature of dish to when the temperature controller detected the temperature and exceeded preset temperature threshold, the power supply of control supply circuit disconnection dish that generates heat, in order to avoid generating heat the dish and continuously generate heat, play the guard action to the dish that generates heat, this simple structure, easily assembly.

In other embodiments, the temperature controller includes a first temperature controller and a second temperature controller, and the preset temperature threshold of the first temperature controller is lower than the preset temperature threshold of the second temperature controller.

So set up, inject the temperature threshold value of predetermineeing of first temperature controller and be less than the temperature threshold value of predetermineeing of second temperature controller to make different temperature controllers have different functions, in order to be favorable to protecting the dish that generates heat better through the break-make according to the temperature control power supply circuit of the dish that generates heat.

In other embodiments, the first temperature controller further includes a reset module electrically connected to the power supply circuit, and the reset module is configured to control the power supply circuit to resume power supply to the heating tray when the temperature is monitored to be lower than a preset temperature threshold of the first temperature controller after the power supply circuit disconnects power supply to the heating tray.

According to the arrangement, the reset module is arranged on the first temperature controller with lower preset temperature, the module is not arranged on the second temperature controller with higher preset temperature, and when the temperature sensing assembly works, the first temperature controller limits the temperature of the heating disc to be close to the preset temperature threshold value of the first temperature controller, so that the temperature control effect is achieved; the second temperature controller protects the heating plate temperature from exceeding a certain limit when the first temperature controller fails, and plays a role in auxiliary protection. When the temperature of the heating plate is higher than the preset temperature threshold value of the first temperature controller, the first temperature controller controls the power supply circuit to cut off the power supply to the heating plate, and when the temperature of the heating plate is lower than the preset temperature threshold value of the first temperature controller, the reset module of the first temperature controller can control the power supply circuit to recover the power supply to the heating plate, the operation is repeated, so that the temperature of the heating plate is limited to be close to the preset temperature threshold value, and when the first temperature controller fails due to repeated starting and stopping, or the reset module cannot recover the power supply to the heating plate, the heating plate stops working; or the first temperature controller can not control the power supply circuit to cut off the power supply to the heating plate when the temperature of the heating plate is higher than the preset temperature threshold value of the first temperature controller, so that the temperature of the heating plate is continuously increased, and when the temperature of the heating plate exceeds the preset temperature threshold value of the second temperature controller, the second temperature controller controls the power supply circuit to cut off the power supply to the heating plate, and the heating plate stops working.

Further, the blocking member comprises a blocking part and a fixing part, the blocking part is formed by protruding from the fixing part, the blocking part is embedded in the central hole, and the fixing part is arranged on the heating plate.

Furthermore, the fixing portion extends outward from the blocking portion in the radial direction, and a fixing hole is formed in the fixing portion so that a fastener penetrates through the fixing hole to fix the blocking member to the heating plate.

So set up, keep off the piece and assemble in the centre bore to with the centre bore shutoff, thereby avoid the foreign matter to pass the dish that generates heat through the centre bore, and make heating element's whole outward appearance regular.

In other embodiments, the top surface of the blocking part is not higher than the surface of the heating plate.

So set up, the top surface of injecing fender portion is not higher than the quotation of the dish that generates heat, avoids the top surface of fender portion to be higher than the quotation of the dish that generates heat, causes the pan to place and can't contact the dish that generates heat when the dish that generates heat. Meanwhile, the blocking part and the heating plate can form an integral structure, and the purposes of foreign matter prevention and water prevention are achieved.

In other embodiments, the blocking portion is integrally protruded from the fixing portion.

Due to the arrangement, the blocking piece is integrally formed, so that the assembly error is favorably reduced; mass production and further cost reduction.

The utility model also provides a cooking utensil, include:

the temperature controller comprises a cover body, a temperature controller and a temperature controller, wherein the cover body is provided with an accommodating cavity, the bottom wall of the cover body is provided with assembling grooves, the assembling grooves formed by sinking towards the accommodating cavity are formed in the bottom wall of the cover body, notches of the assembling grooves deviate from the accommodating cavity, and each assembling groove corresponds to one temperature controller; and

in the temperature sensing assembly, the heating disc is fixed in the accommodating cavity, and the cover body is directly contacted and connected with the heating disc or is fixedly connected with the heating disc through a metal piece; the temperature controller is fixed in the assembly groove and is in direct contact with the bottom surface of the cover body.

So set up, the cooking utensil who has above-mentioned temperature sensing subassembly can detect the temperature of the dish or the cover body department that generates heat to avoid the high temperature of the dish that generates heat, thereby play the guard action.

In other embodiments, the cooking utensil further comprises a pressing sheet, and two ends of the pressing sheet are fixedly arranged on the bottom wall of the cover body so as to fixedly arrange the temperature controller in the assembling groove.

So set up, fixed through the preforming, the structure of adaptation control by temperature change can be better sets firmly the temperature controller in the assembly tank to promote fixed steadiness.

In other embodiments, the cooking appliance is one of an electric stewpan, an electric steamer, or an electric beaker.

Drawings

FIG. 1 is a schematic cross-sectional view of an electric stewpan according to the present invention;

FIG. 2 is a cross-sectional view of the combination of the cover and the temperature sensing assembly shown in FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;

FIG. 4 is a schematic cross-sectional view of a temperature sensing assembly;

FIG. 5 is a schematic view of another perspective view of the temperature sensing assembly of FIG. 4;

fig. 6 is a schematic structural view of the stopper in fig. 4.

Reference numerals: 10. a heating plate; 11. a central bore; 21. a first temperature controller; 22. a second temperature controller; 30. a stopper; 31. a blocking part; 32. a fixed part; 33. a fixing hole; 41. a cover body; 411. an accommodating cavity; 412. assembling the groove; 42. a housing; 50. tabletting; 60. an inner pot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The conventional cooking appliances, such as an electric stewpot or an electric cup, etc., heat the inner container thereof by the heating plate 10. In order to avoid dry burning of the inner container or better protection of the inner container and over-high temperature of the inner container, the temperature of the heating plate or the inner container is usually monitored.

For convenience of description and explanation, the cooking appliances herein are illustrated as electric stewpots. Traditional electric stewpan all detects inner bag or dish that generates heat through the thermistor in the temperature sensing cup subassembly, but the structure of temperature sensing cup subassembly is complicated, and the part is many, the assembly of being not convenient for, and has problem with high costs.

In order to solve the problem, the utility model provides a new temperature sensing subassembly, this temperature sensing subassembly can use on cooking utensil (if on the electric stewpot), can monitor the temperature that generates heat and coil 10 or generate heat and coil 10 on every side to when the dish 10 temperature that generates heat is higher than the default, cut off the power supply, thereby reach the protection to the inner bag among the dish 10 or the cooking utensil that generates heat.

Specifically, as shown in fig. 1 to 6, the temperature sensing assembly includes a heating plate 10, a temperature controller, a power supply circuit (not shown), and a stopper 30. The temperature controllers are indirectly connected with the heating plate 10 and used for detecting the temperature of the heating plate 10 in real time, and the temperature controllers at least comprise two temperature controllers, and the preset temperature thresholds of the temperature controllers are different. The power supply circuit is respectively connected with the heating plate 10 and each temperature controller, during operation, when the temperature controller detects that the temperature of the heating plate 10 exceeds a preset temperature threshold value, the power supply circuit is controlled to cut off the power supply for the heating plate to stop heating, the protection of the heating plate 10 or the arrangement of a pot on the heating plate 10 is facilitated, and the structure is simple and easy to assemble. The heat generating plate 10 has a center hole 11, and the presence of the center hole 11 causes inflow of water or foreign substances through the center hole, possibly causing a short circuit of a power supply circuit and inconvenience in cleaning. The stopper 30 is fitted into the central hole 11 to block the central hole 11, which is advantageous in preventing water or foreign substances from flowing into the central hole 11.

As shown in fig. 1, the temperature controller includes a first temperature controller 21 and a second temperature controller 22, the first temperature controller 21 and the second temperature controller 22 have different preset temperature thresholds, and the preset temperature threshold of the first temperature controller 21 is lower than the preset temperature threshold of the second temperature controller 22, so as to limit the preset temperature threshold of the first temperature controller 21 to be lower than the preset temperature threshold of the second temperature controller 22, so that different temperature controllers have different functions, and the heating plate 10 is better protected by controlling the on/off of the power supply circuit according to the temperature of the heating plate 10. Specifically, the first thermostat 21 can detect the temperature of the heat generating plate 10 below its preset temperature threshold. When the temperature of the heating plate 10 is higher than the preset temperature threshold of the first temperature controller 21, the second temperature controller 22 will control the power supply circuit to cut off the power supply to the heating plate 10, so as to prevent the temperature of the heating plate 10 from continuously rising, thereby protecting the heating plate 10 or a pot on the heating plate 10.

The first temperature controller 21 further includes a reset module (not shown) electrically connected to the power supply circuit, and the reset module is configured to control the power supply circuit to resume power supply to the heating tray 10 when the power supply circuit disconnects power supply to the heating tray 10 and monitors that the temperature is lower than a preset temperature threshold of the first temperature controller 21. According to the arrangement, the first temperature controller 21 with lower preset temperature is provided with the reset module, the second temperature controller 22 with higher preset temperature is not provided with the module, and when the temperature sensing assembly works, the first temperature controller 21 limits the temperature of the heating plate 10 to be close to the preset temperature threshold value, so that the temperature control function is achieved; the second thermostat 22 protects the temperature of the heating plate 10 from exceeding a certain limit when the first thermostat 21 fails, thereby playing a role of auxiliary protection. That is, when the temperature of the heating plate 10 is higher than the preset temperature threshold of the first thermostat 21, the first thermostat 21 controls the power supply circuit to cut off the power supply to the heating plate 10, and when the temperature of the heating plate 10 is lower than the preset temperature threshold of the first thermostat 21, the reset module of the first thermostat 21 can control the power supply circuit to recover the power supply to the heating plate 10, and this is repeated, so that the temperature of the heating plate 10 is limited to be close to the preset temperature threshold, and when the first thermostat 21 fails due to repeated start-stop, or the reset module cannot recover the power supply to the heating plate 10, the heating plate 10 stops working; or the first temperature controller 21 cannot control the power supply circuit to cut off the power supply to the heating plate 10 when the temperature of the heating plate 10 is higher than the preset temperature threshold of the first temperature controller 21, so that the temperature of the heating plate 10 continues to rise, until the preset temperature threshold of the second temperature controller 22 is exceeded, the second temperature controller 22 controls the power supply circuit to cut off the power supply to the heating plate 10, and the heating plate 10 stops working.

It should be noted that the temperature controller detects the temperature of the heating plate 10, which may be directly contacted with the heating plate 10 to measure the temperature of the heating plate 10, or may obtain the temperature of the heating plate 10 by measuring the heat radiated by the heating plate 10, or by measuring the ambient heat.

As shown in fig. 4, the heat generating plate 10 is formed by centrifugal casting, and a center hole 11 is left in the center of the heat generating plate 10. In order to prevent foreign matters from falling into the central hole 11 or liquid from flowing into the central hole, the stopper 30 is assembled to the central hole 11 to block the central hole 11, thereby preventing water or foreign matters from entering the central hole 11.

In addition, the heating plate can comprise a plate body and a heating pipe, wherein the heating pipe is fixedly arranged on one surface of the plate body and used for heating the plate body. Of course, in other embodiments, the heating plate may also be a plate body capable of being electrified to generate heat, and is not limited herein.

As shown in fig. 4 to 6, the blocking member 30 includes a blocking portion 31 and a fixing portion 32, the blocking portion 31 is formed by protruding from the fixing portion 32, the blocking portion 31 is embedded in the central hole 11, and the fixing portion 32 is disposed on the heating plate 10, so as to fix the blocking portion 31 in the central hole 11, thereby achieving the purpose of dust-proof and water-proof. Preferably, the blocking portion 31 is integrally protruded on the fixing portion 32, so as to reduce the assembling error; mass production and further cost reduction.

Further, the fixing portion 32 extends outward from the radial direction of the blocking portion 31, and a fixing hole 33 is opened on the fixing portion 32, so that the blocking member 30 is fixed on the heating plate 10 by a fastener penetrating through the fixing hole 33. The stopper 30 is fitted to the central hole 11 to block the central hole 11, thereby preventing foreign substances from passing through the heating tray 10 through the central hole 11 and making the overall appearance of the heating assembly neat. In other words, the stopper 31 is located in the central hole 11, and the plane of the fixing portion 32 can be attached to the fixing surface of the heat generating plate 10, so that the fixing purpose can be achieved, and the fitting gap between the stopper 31 and the central hole 11 due to an error can be further covered, thereby preventing water or foreign matters from flowing in through the gap.

Further, the top surface of the blocking portion 31 is not higher than the disk surface of the heating disk 10, so as to prevent the top surface of the blocking portion 31 from being higher than the disk surface of the heating disk 10, which may cause the pot to be placed on the heating disk 10 and not contact the heating disk 10. Meanwhile, the blocking part 31 and the heating plate 10 can form an integral structure, and the purposes of foreign matter prevention and water prevention are achieved. Referring to fig. 4, the top surface of the stopper 31 is slightly lower than the plate surface of the heat generating plate 10. It should be understood by those skilled in the relevant art that in other embodiments, the top surface of the blocking portion 31 may be equal to the disk surface of the heat generating disk 10, so that when the user uses the heat generating disk, the top surface of the blocking portion 31 is substantially in a continuous surface state with the disk surface of the heat generating disk 10 when the user looks down, thereby achieving the effect of neat appearance.

As shown in fig. 1 and 2, the heat generating assembly of the present invention is schematically applied to a cooking appliance. In particular, the cooking appliance is exemplified as an electric stewpan. The cooking appliance comprises a cooker body and an inner pot 60 positioned in the cooker body, wherein the temperature sensing assembly is arranged in the cooker body, the inner pot 60 is positioned in the cooker body and is placed on the heating plate 10, so that the inner pot 60 is heated through the temperature of the heating plate 10. And then detect the temperature of the heating plate 10 through the temperature controller in the temperature sensing assembly to avoid the abnormal temperature (when the temperature of the heating plate 10 exceeds the preset temperature), destroy the inner pot 60.

Specifically, the cooker body comprises a housing 42 and a cover 41 embedded in the housing 42, and the cover 41 is usually a heat insulation cover to reduce the temperature loss around the inner pot 60 and help improve the cooking effect. The cover body 41 is provided with an accommodating cavity 411 for accommodating the inner container, the bottom wall of the cover body 41 is provided with an assembling groove 412 formed by sinking towards the accommodating cavity 411, the notch of the assembling groove 412 deviates from the accommodating cavity 411, each assembling groove 412 corresponds to a temperature controller, the heating disc 10 is fixedly arranged in the accommodating cavity 411, and the cover body 41 is directly contacted and connected with the heating disc 10 or is fixedly connected through a metal piece; the thermostat is fixed in the mounting groove 412 and directly contacts with the bottom surface of the cover 41. The heating plate 10 is disposed on the bottom wall of the cover 41 and located in the accommodating cavity 411, so that the inner pot 60 can be located on the heating plate 10 when being placed in the accommodating cavity 411. In order to facilitate better assembly of the thermostat, the thermostat is disposed on the bottom wall of the cover body 41 so as to support the thermostat better.

Further, in order to better fix the thermostat in the assembling groove 412 of the cover 41, the cooking appliance further includes a pressing piece 50, and both ends of the pressing piece 50 are fixedly arranged on the bottom wall of the cover 41 to fix the thermostat in the assembling groove 412. Specifically, as shown in fig. 1 and 2, the number of the assembly grooves 412 is two, and the thermostats are a first thermostat 21 and a second thermostat 22. The first thermostat 21 and the second thermostat 22 are respectively fixed in the two assembly grooves 412. The number of the pressing sheets 50 may be two, each pressing sheet 50 supports one temperature controller, and both ends of the pressing sheet 50 may be fixed to the cover 41 by fasteners, respectively. Of course, as shown in fig. 3, each thermostat may be fixed by two pressing plates 50, one end of each pressing plate 50 is fixed on the cover 41, the other end is fixed on the thermostat, and the two pressing plates 50 are symmetrically disposed, so that the thermostat is fixed in the assembly groove 412.

The cooking utensil of the utility model can also be applied to household appliances such as electric heating cups or electric heating pans.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A temperature sensing assembly, comprising:

the heating plate (10), the heating plate (10) is provided with a central hole (11);

a stopper (30), said stopper (30) being fitted to said central hole (11);

the temperature controllers are indirectly connected with the heating plate (10) and used for detecting the temperature of the heating plate (10) in real time, at least two temperature controllers are included, and the preset temperature threshold values of the temperature controllers are different;

and the power supply circuit is respectively electrically connected with the heating plate (10) and the temperature controller, and when the temperature controller detects that the temperature exceeds a preset temperature threshold value during work, the power supply circuit is controlled to be disconnected to supply power to the heating plate.

2. The temperature sensing assembly according to claim 1, wherein the thermostat comprises a first thermostat (21) and a second thermostat (22), and the preset temperature threshold of the first thermostat (21) is lower than the preset temperature threshold of the second thermostat (22).

3. The temperature sensing assembly of claim 2, wherein the first thermostat (21) further comprises a reset module electrically connected to the power supply circuit, and the power supply circuit is controlled to resume power supply to the heat generating plate (10) when the power supply circuit is disconnected from power supply to the heat generating plate (10) and the temperature of the heat generating plate (10) is monitored to be lower than a preset temperature threshold of the first thermostat (21).

4. The temperature sensing assembly according to claim 1, wherein the stopper (30) includes a blocking portion (31) and a fixing portion (32), the blocking portion (31) is formed to protrude from the fixing portion (32), the blocking portion (31) is embedded in the central hole (11), and the fixing portion (32) is disposed on the heat generating plate (10).

5. The temperature sensing assembly according to claim 4, wherein the fixing portion (32) extends radially outward from the blocking portion (31), and a fixing hole (33) is defined in the fixing portion (32) for fixing the blocking member (30) to the heating plate (10) by a fastening member passing through the fixing hole (33).

6. The temperature sensing assembly according to claim 4, wherein a top surface of the stopper (31) is not higher than a plate surface of the heat generating plate (10).

7. A temperature-sensing assembly according to claim 4, wherein the stopper portion (31) is integrally provided to protrude from the fixing portion (32).

8. A cooking appliance, comprising: a cover (41) and the temperature sensing assembly of any one of claims 1 to 7, wherein the cover (41) has a receiving cavity (411), a bottom wall of the cover (41) is provided with a fitting groove (412) formed by being concave towards the receiving cavity (411), a notch of the fitting groove (412) is opposite to the receiving cavity (411), and each fitting groove (412) corresponds to one thermostat; the heating plate (10) is fixed in the accommodating cavity (411), and the cover body (41) is directly contacted and connected with the heating plate (10) or is fixedly connected through a metal piece; the temperature controller is fixed in the assembly groove (412) and is directly contacted with the bottom surface of the cover body (41).

9. The cooking appliance according to claim 8, further comprising a pressing plate (50), wherein both ends of the pressing plate (50) are fixed to the bottom wall of the cover (41) to fix the thermostat in the mounting groove (412).

10. The cooking appliance of claim 8, wherein the cooking appliance is one of an electric stewpan, an electric steamer, or an electric beaker.

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