CN111728465A

CN111728465A - Temperature display device and heating appliance

Info

Publication number: CN111728465A
Application number: CN201910229139.6A
Authority: CN
Inventors: 杜文博
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-10-02
Anticipated expiration: 2039-03-25
Also published as: CN111728465B

Abstract

The invention provides a temperature display device and a heating appliance, wherein the temperature display device comprises: a heat conductor; the temperature sensing action piece is in contact with the heat conductor, can sense the temperature of the heat conductor and can act between the initial installation position and one or more preset positions according to the sensed temperature. This technical scheme makes the temperature of products such as heating appliance can be correlated with the position of temperature sensing action piece, thereby the user just can confirm the temperature that the heat conductor corresponds according to the position of temperature sensing action piece when using, this scheme promptly, the temperature of product can show with the position of temperature sensing action piece, the user just so can roughly judge the temperature of waiting to detect the piece as long as see the position of temperature sensing action piece, thereby just can carry out the instruction of follow-up operation according to the temperature that the position of temperature sensing action piece represented, and then alright prevent that the user from not knowing the temperature and taking place the scald, can't confirm the emergence of a series of problems that temperature etc. lead to.

Description

Temperature display device and heating appliance

Technical Field

The invention relates to the field of household appliances, in particular to a temperature display device and a heating appliance.

Background

At present, for heating appliances such as a wok and the like, a user cannot know the general temperature of the heating appliances such as the wok and the like in the process of cooking food materials, so that on one hand, the user cannot accurately judge the oil temperature when cooking the food materials, and the time for putting dishes into the wok, the cooking degree of the dishes and the like are not easy to determine; on the other hand, the user cannot know the general temperature of the heating appliances such as the frying pan and the like, and the user is easily scalded due to the overhigh temperature of the heating appliances.

Therefore, how to design a temperature display device capable of displaying temperature and a heating appliance including the temperature display device is a problem to be solved.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

Accordingly, it is an object of the present invention to provide a temperature display device.

Another object of the present invention is to provide a heating appliance including the temperature display device.

To achieve the above object, an embodiment of a first aspect of the present invention provides a temperature display device, including: a heat conductor; the temperature sensing action piece is in contact with the heat conductor, can sense the temperature of the heat conductor and can act between an initial installation position and one or more preset positions according to the sensed temperature.

The temperature display device provided by the embodiment of the invention can be used in products such as heating appliances, and thus can be used for displaying the temperature of the heating appliances. Specifically, temperature display device includes heat conductor and temperature sensing action, and the heat conductor is used for carrying out hot conduction to can carry out the heat transfer of heating appliance to temperature sensing action, alright carry out the temperature judgement of heating appliance through the temperature that temperature sensing action sensing like this, just so can carry out the instruction of follow-up operation according to the temperature of the heating appliance of judging. The temperature sensing action member is used for sensing the temperature of the heat conductor and adjusting the working position according to the temperature of the heat conductor, and specifically, for example, the temperature sensing action member can move from an initial installation position to one or more preset positions according to the sensed temperature, so that the temperature sensing action member can present various different working states according to the temperature of the heat conductor, the temperature of products such as heating appliances can be related to the position and the current state of the temperature sensing action member, that is, the temperature of the products such as the heating appliances can be displayed in different positions or different states of the temperature sensing action member, so that a user can determine the temperature corresponding to the heat conductor according to the position and the current state of the temperature sensing action member when using the temperature sensing action member, that is, the user can roughly judge the temperature of the to-be-detected member as long as the user sees the position of the temperature sensing action member, therefore, the subsequent operation can be guided according to the temperature represented by the position of the temperature sensing action piece, and a series of problems caused by scalding or incapability of determining the temperature due to the fact that a user does not know the temperature can be prevented. Specifically, for example, the temperature display device can be mounted on the handle of the wok, so that the temperature of the handle can be substantially displayed through the position of the temperature sensing action piece, the user can estimate the temperature of the handle approximately through the position of the temperature sensing action piece, the user can be prevented from being scalded by the handle, meanwhile, the temperature of the current wok can be determined approximately by the estimated temperature of the handle, the user can reasonably control the temperature of the wok according to the temperature of the handle, and the use experience of the user can be improved. The structure can display the temperature of the heat conductor through the position of the temperature sensing action piece instead of displaying through an electronic display screen and the like, and the display mode is realized by utilizing a mechanical structure more, so that the use of an electronic element can be avoided, the temperature display device can be arranged in occasions such as a frying pan and the like with high temperature, inconvenience in power connection and the like, energy can be saved, the cost is reduced, and the application range of the temperature display device can be enlarged on the other hand.

In addition, the temperature display device provided according to the above embodiment of the present invention has the following additional technical features:

in the above technical scheme, preferably, the temperature sensing operation member has a plurality of preset positions, each preset position corresponds to a preset temperature, and the temperature sensing operation member can move to the preset position corresponding to the preset temperature when the sensed temperature is greater than or equal to any preset temperature.

In these technical scheme, can rationally set up the structure of temperature sensing action spare to make temperature sensing action spare have the temperature of predetermineeing of a plurality of actions, and make a plurality of temperatures of predetermineeing and a plurality of predetermined position one-to-one setting, the temperature of temperature sensing spare just can move to the predetermined position that corresponds with predetermined temperature when more than or equal to one of them temperature of predetermineeing like this, the user just can judge the temperature of heat conductor according to the position of locating of temperature sensing action spare like this. And this kind of setting, because the temperature sensing action piece can move to different preset positions when the temperature of heat conductor more than or equal to different preset temperatures, temperature display device just can demonstrate a plurality of different temperatures through different preset positions like this, can realize the step display of a plurality of temperatures promptly to can improve temperature display device's accuracy nature. Specifically, for example when installing temperature display device on the handle of frying pan, can correspond and set up a temperature one of presetting about 70 ℃ and a temperature two of presetting about 110 ℃, and correspond and preset temperature one and set up preset position one, correspond and preset temperature two and set up preset position two, like this the user when using, if see temperature sensing action and move to preset position one, then can know the temperature of handle and be greater than preset temperature one, just so can remind user's handle relatively to scald, do not touch with the hand, and see to preset position two if temperature sensing action, then the temperature that the user can know the handle is greater than preset temperature two, just so can show the current temperature of frying pan to the user, so that the user can rationally control the temperature of cooking. Of course, a third preset temperature, a third preset position, a fourth preset temperature, a fourth preset position and the like can be correspondingly set to display other temperature nodes, for example, a frying temperature can be correspondingly set to remind a user when to put down the pot during frying.

In any one of the above aspects, preferably, the temperature sensitive actuator includes: a first magnetic member mounted on the heat conductor; the first elastic piece is arranged on the heat conductor, one end of the first elastic piece is matched with the first magnetic piece, and the other end of the first elastic piece is matched with the second magnetic piece; the second magnetic part is arranged on the heat conductor, can transfer heat with the heat conductor, can be in magnetic force fit with the first magnetic part when the temperature of the heat conductor is lower than a first preset temperature, and enables the first elastic part to be in a deformation state; the second magnetic part can be demagnetized when the temperature of the heat conductor is greater than or equal to a first preset temperature, and the second magnetic part can move to a first preset position under the action of the first elastic part and the first magnetic part after demagnetization.

In these technical schemes, the temperature sensing action member includes a first magnetic member, a first elastic member and a second magnetic member, the first magnetic member is preferably a permanent magnet, and the heat conductor can contact with the second magnetic member and transfer heat, so that the heat on the heat conductor can be transferred to the second magnetic member, and thus the temperatures of the heat conductor and the second magnetic member can be approximately synchronous, and thus the action temperature of the temperature sensing action member can be closer to the temperature of the heat conductor, and the error of the temperature display device in displaying the temperature can be reduced. When the structure is in an initial state, namely the temperature of the heat conductor is lower than a first preset temperature, the first elastic element can be in a compressed state or a stretched state through the repulsive force or attractive force of the first magnetic element and the second magnetic element, meanwhile, the first preset temperature can be reasonably set so that the second magnetic part can lose magnetism after the temperature is higher than the first preset temperature, after the second magnetic part loses magnetism, the force between the second magnetic part and the first magnetic part is far larger than the resilience force generated by the deformation of the first elastic part, so that the second magnetic member can move to the first preset position under the action of the first elastic member and the first magnetic member, this enables to correlate the first predetermined position of the second magnetic element with the first predetermined temperature, therefore, the temperature of the heat conductor can be reflected through the first preset position of the second magnetic piece, and the effect of displaying the temperature can be achieved. The structure can realize the driving of the temperature sensing action piece through the disappearance of magnetic force or magnetic force, the magnetic force control is accurate, and the contact is not needed, so that the accurate control of the temperature sensing action piece can be ensured, the structure of the temperature sensing action piece can be simplified, and the overall cost of the temperature sensing action piece is reduced.

Specifically, for example, the second magnetic member may be a magnet made of a magnetic material, and the curie temperature of the magnet is reasonably controlled, so that the curie temperature of the magnet is adapted to the demagnetizing temperature of the second magnetic member, and thus the second magnetic member can be demagnetized when the temperature is higher than the curie temperature of the second magnetic member, so that the first elastic member can rebound and drive the second magnetic member to move to a corresponding position when the temperature of the heat conductor is higher than or equal to the curie temperature of the second magnetic member. In the mode, the magnetic conduction or demagnetization of the second magnetic part is realized through the structure of the second magnetic part, so that the structure completely realizes the movement of the temperature sensing action part through a mechanical structure, namely the structure does not use electric driving equipment, and the structure does not need electric parts, thereby saving energy and expanding the application range of the temperature display device. Of course, the second magnetic member may be an electromagnet, so that the demagnetization or the magnetic conduction control of the second magnetic member may be performed by the energization of the second magnetic member.

In any one of the above technical solutions, preferably, the temperature sensitive actuator further includes: the second elastic piece is arranged on the heat conductor, one end of the second elastic piece is matched with the first magnetic piece, and the other end of the second elastic piece is matched with the third magnetic piece; the third magnetic part is arranged on the heat conductor, can transfer heat with the heat conductor, can be in magnetic force fit with the first magnetic part when the temperature of the heat conductor is lower than a second preset temperature, and enables the second elastic part to be in a deformation state; the third magnetic part can be demagnetized when the temperature of the heat conductor is greater than or equal to a second preset temperature, and the third magnetic part can move to a second preset position under the action of the second elastic part and the first magnetic part after demagnetization.

In the technical schemes, the temperature sensing action piece further comprises a second elastic piece and a third magnetic piece, the heat conductor can be in contact with the third magnetic piece and conducts heat, so that heat on the heat conductor can be transferred to the second magnetic piece, the temperatures of the heat conductor and the second magnetic piece can be approximately synchronous, the action temperature of the temperature sensing action piece can be closer to the temperature of the heat conductor, and the temperature display error of the temperature display device can be reduced. When the temperature of the heat conductor is lower than the second preset temperature, the second elastic part can be in a compression state or a stretching state through the repulsive force or attractive force of the second magnetic part and the third magnetic part, meanwhile, the second preset temperature can be reasonably set, so that the third magnetic part can lose magnetism after the temperature is higher than the second preset temperature, after the third magnetic part is demagnetized, the force between the third magnetic part and the first magnetic part is smaller than the repulsive force of the third magnetic part, so that the third magnetic part can move from the current position to the second preset position under the action of the second magnetic part and the first magnetic part, the second preset position of the third magnetic part can be associated with the second preset temperature, the temperature of the heat conductor can be expressed through the second preset position of the third magnetic part, and the temperature display effect can be achieved. This kind of structure can be through first elastic component, the demonstration of first predetermined temperature is realized in the cooperation of second magnetic part and first magnetic part, simultaneously, can be through the second elastic component, the demonstration of second predetermined temperature is realized in the cooperation of third magnetic part and first magnetic part, thereby can realize the step demonstration of a plurality of temperatures, just so can demonstrate a plurality of temperatures through same temperature sensing action piece, thereby can remind and guide more accurately to user's multiple follow-up operation through a plurality of temperatures that show, and then can improve user and use experience.

Preferably, the third magnetic member is a magnet made of a magnetic material, and the curie temperature of the magnet is reasonably controlled, so that the curie temperature of the magnet is matched with the demagnetizing temperature of the third magnetic member, and thus the third magnetic member can be demagnetized when the temperature is higher than the curie temperature of the third magnetic member, so that the second elastic member can rebound and drive the third magnetic member to move. In the mode, the magnetic conduction or demagnetization of the third magnetic part is realized through the structure of the third magnetic part, so that the structure completely realizes the movement of the temperature sensing action part through a mechanical structure, namely the structure does not use electric driving equipment, and the structure does not need electric parts, thereby saving energy and expanding the application range of the temperature display device. Of course, the third magnetic member may be an electromagnet, so that the third magnetic member may be demagnetized or magnetically controlled by the energization of the third magnetic member.

In any of the above technical solutions, preferably, the first elastic member is a spring, and/or the second elastic member is a spring.

In these solutions, the first elastic member and the second elastic member are preferably springs, so that the driving movement of the second magnetic member and the third magnetic member can be realized by the springs. The spring has simple structure and good elasticity and resilience, thereby simplifying the structure of the temperature sensing action piece and ensuring the performance of the temperature sensing action piece. Of course, the first elastic member and the second elastic member may be other elastic structures, such as an elastic sheet or an elastic band. Specifically, when the temperature to be displayed is low, the spring may not be provided, but the first elastic member and the second elastic member are preferably provided as elastomers, which can simplify the structure and improve the reliability, but when the structure of the elastic member is actually provided, the temperature to be displayed is sufficiently considered so that the temperature to be displayed can be matched with the elastic coefficient of the selected elastic member.

Wherein, be the spring at first elastic component, the second elastic component is the spring, and the second magnetic part is first magnet, and when the third magnetic part was the second magnet, can rationally set up the elastic coefficient k of spring according to the curie temperature of first magnet and second magnet, specifically, can select the spring of different elastic coefficient k to the magnet of different curie temperatures, specifically, to the lower magnet of curie temperature, can select the lower spring of elastic coefficient to the precision when can improve spring and magnet cooperation.

In any of the above technical solutions, preferably, the first magnetic member is a permanent magnet; and/or the second magnetic part is a first magnet, and the first preset temperature is the Curie temperature of the first magnet; and/or the third magnetic part is a second magnet, and the second preset temperature is the Curie temperature of the second magnet.

In these technical schemes, first magnetism spare is the permanent magnet, make first magnetism spare need not the circular telegram just can have magnetism forever, just so can simplify the structure of first magnetism spare, and second magnetism spare is first magnet, first preset temperature is the curie temperature of first magnet, third magnetism spare is the second magnet, the second preset temperature is the curie temperature of second magnet, make the curie temperature of first magnet and the demagnetization temperature looks adaptation of second magnetism spare like this, the curie temperature of second magnet and the demagnetization temperature looks adaptation of third magnetism spare, second magnetism spare like this, third magnetism spare just can be demagnetized when the temperature is greater than its curie temperature, thereby make first elastic component and second elastic component can kick-back and drive the magnet motion that corresponds. In the mode, the magnetic conduction or demagnetization of the second magnetic part and the third magnetic part is realized through the structures of the second magnetic part and the third magnetic part, so that the structure completely realizes the movement of the temperature sensing action part through a mechanical structure, namely, the structure does not use electric driving equipment, and the structure does not need electric parts, thereby saving energy and expanding the application range of the temperature display device.

In any of the above technical solutions, preferably, the first preset temperature is greater than or equal to 60 ℃ and less than or equal to 80 ℃, and/or the second preset temperature is greater than or equal to 100 ℃ and less than or equal to 120 ℃.

In these technical scheme, can install temperature display device on the handle of frying pan etc. this moment, the first temperature of predetermineeing of accessible shows the scald hand temperature of handle, and with first temperature setting within range more than or equal to 60 ℃ less than or equal to 80 ℃ for temperature display device can remind the temperature of user's handle when the temperature of handle is about 60 ℃ -80 ℃ higher, difficult touch, alright avoid scalding like this. Meanwhile, the cooking temperature can be displayed through the second preset temperature, the second preset temperature is set in the range of more than or equal to 100 ℃ and less than or equal to 120 ℃, the temperature display device can display the current cooking temperature of a user when the temperature of the handle is about 100-120 ℃, and therefore the user can roughly control the cooking temperature according to the temperature of the handle and prevent the cooking temperature from being too high or too low.

Further preferably, the first preset temperature is 70 ℃ and/or the second preset temperature is 110 ℃.

Among them, it is preferable that the second magnetic member is a magnet made of a nickel-copper alloy, because the curie temperature of the magnet made of a nickel-copper alloy is relatively close to 70 ℃, so that the curie temperature of the second magnetic member can be relatively moderate. Of course, the second magnetic member can be made of other materials, the materials are different, and the Curie temperature is different, so that the temperature which can be displayed by the temperature display device can be changed by changing the materials of the second magnetic member, and the function of displaying different temperatures is achieved.

Preferably, the third magnetic member is a magnet made of a titanium-nickel alloy, so that the curie temperature of the third magnetic member is relatively close to 110 ℃, and therefore, the curie temperature of the third magnetic member is relatively moderate. Of course, the third magnetic member may be made of other materials, and the material is different, and the curie temperature is different, so that the temperature display device can display can be changed by changing the material of the third magnetic member, thereby achieving the function of displaying different temperatures.

In any one of the above technical solutions, preferably, an installation groove is provided on the heat conductor, and the temperature sensing operation member is installed in the installation groove.

In these technical schemes, can set up a mounting groove on the heat conductor, can directly hide the temperature sensing action piece and install in the mounting groove like this, and this kind of setting can install the temperature sensing action piece inside the heat conductor to can the rational utilization inner space of heat conductor, reduce the whole volume of product, this kind of setting also can prevent that the temperature sensing action piece too protrudes the heat conductor setting in addition, thereby can make temperature display device's outward appearance level and more pleasing to the eye.

Where the curie temperature is referred to in this application as the curie point, i.e. the magnetic transition point. The curie temperature is a temperature at which the spontaneous magnetization of the magnetic material decreases to zero, and is a critical point at which a ferromagnetic or ferrimagnetic substance is converted into a paramagnetic substance. Below the curie point temperature the substance becomes ferromagnetic, where the magnetic field associated with the material is difficult to change. When the temperature is higher than the curie point, the substance becomes a paramagnet, and the magnetic field of the magnet is easily changed by the change of the surrounding magnetic field. The magnetic susceptibility is then about minus 6 th power of 10. The curie point is determined by the chemical composition and crystal structure of the substance.

In any of the above technical solutions, preferably, an installation groove is provided on the heat conductor, and the temperature sensing operation member is installed in the installation groove; the wall of the mounting groove is provided with a guide groove, and the second magnetic piece and the third magnetic piece can be slidably mounted in the guide groove.

In these technical schemes, can set up the guide way on the diapire of mounting groove corresponding second magnetism spare and third magnetism spare, just so make second magnetism spare and third magnetism spare just can slide in the guide way, just so can guide the motion of second magnetism spare and third magnetism spare through the guide way to can prevent that second magnetism spare and third magnetism spare from taking place the skew or the dead circumstances such as card when moving. Meanwhile, the second magnetic member and the third magnetic member may be provided with sliders, respectively, so that the second magnetic member and the third magnetic member can be slidably installed in the guide grooves through the sliders.

Preferably, guide grooves are formed in the bottom wall of the mounting groove and correspond to the two ends of the second magnetic part and the two ends of the third magnetic part, so that the two ends of the second magnetic part and the two ends of the third magnetic part can be slidably mounted in the guide grooves through the sliding blocks.

Further preferably, two limiting bulges are arranged on the bottom wall of the mounting groove at intervals, and the first magnetic part is mounted between the two limiting bulges in a limiting manner.

In these technical scheme, can set up two spacing archs corresponding to first magnetism spare interval on the diapire of mounting groove, can fix first magnetism spare in the mounting groove through two spacing archs like this, just so can prevent the motion of first magnetism spare to make second magnetism spare and third magnetism spare can move preset the position.

Wherein, preferably, the upper and lower both ends that correspond first magnetism spare all are provided with spacing arch, just so can carry on spacingly to the upper and lower both ends of first magnetism spare simultaneously.

Preferably, the upper end and the lower end of the first magnetic part are both provided with protruding structures, and the protruding structures can be clamped into a groove formed by the limiting protrusion and the groove wall of the mounting groove in a surrounding mode.

In any one of the above technical solutions, preferably, the first elastic member and the second elastic member are respectively installed at two sides of the first magnetic member, the second magnetic member is slidably installed at an end of the first elastic member away from the first magnetic member, the third magnetic member is slidably installed at an end of the second elastic member away from the first magnetic member, a gap is provided between the second magnetic member and a first side wall of the installation groove, the second magnetic member can move to contact with the first side wall under the action of the first elastic member and the first magnetic member after being demagnetized, a gap is provided between the second magnetic member and a second side wall of the installation groove, and the second magnetic member can move to contact with the second side wall under the action of the second elastic member and the first magnetic member after being demagnetized.

In these technical solutions, it may be preferable that the first magnetic member is fixedly installed in the middle of the installation groove, and the first elastic member and the second elastic member are correspondingly installed on two sides, such as the left side and the right side, of the first magnetic member, so that the second magnetic member and the third magnetic member can be matched with the same first magnetic member, and thus, one first magnetic member can be omitted. Meanwhile, when the temperature sensing action piece is integrally installed in the installation groove, a certain distance can be reserved between the second magnetic piece and the third magnetic piece and the side wall of the corresponding installation groove when the second magnetic piece and the third magnetic piece are initially installed, so that the second magnetic piece and the third magnetic piece can move forwards under the action of the elastic piece and the first magnetic piece to contact with the corresponding side wall of the installation groove after demagnetization, and thus a user can judge that the temperature of the heat conductor reaches the temperature of action of the second magnetic piece or the third magnetic piece when seeing the contact of the second magnetic piece or the third magnetic piece and the corresponding side wall, and the temperature to be displayed by the temperature display device can be displayed according to the relative position relation of the second magnetic piece, the third magnetic piece and the installation groove.

In another technical solution, preferably, the first elastic member and the second elastic member are installed on the same side of the first magnetic member, the second magnetic member is slidably installed at an end of the first elastic member away from the first magnetic member, the third magnetic member is slidably installed at an end of the second elastic member away from the first magnetic member, a gap is provided between the second magnetic member and a first side wall of the installation groove, the second magnetic member can move to contact with the first side wall under the action of the first elastic member and the first magnetic member after being demagnetized, a gap is provided between the second magnetic member and the first side wall of the installation groove, and the second magnetic member can move to contact with the first side wall under the action of the second elastic member and the first magnetic member after being demagnetized.

In these technical solutions, the first magnetic member may be fixedly installed in the middle of the installation slot, and the first elastic member and the second elastic member are correspondingly installed on the same side of the first magnetic member, such as the left side or the right side, meanwhile, when the second magnetic piece and the third magnetic piece are initially installed, a certain distance is reserved between the second magnetic piece and the third magnetic piece and the side wall of the corresponding installation groove, so that the second magnetic part and the third magnetic part can move forwards under the action of the elastic part and the first magnetic part after demagnetization until the corresponding side walls of the mounting groove are contacted, thus, the user can judge that the temperature of the heat conductor reaches the action temperature of the second magnetic part or the third magnetic part when seeing the contact between the second magnetic part or the third magnetic part and the corresponding side wall, therefore, the temperature to be displayed by the temperature display device can be displayed according to the relative position relationship between the second magnetic piece and the mounting groove and the relative position relationship between the third magnetic piece and the mounting groove. And this kind of structure, because second magnetism spare and third magnetism spare are located the same one side of first magnetism spare, thereby make second magnetism spare and third magnetism spare the face that contacts after the action the same, namely this kind of structure second magnetism spare and third magnetism spare reach curie temperature and after the demagnetization at its temperature, it can contact with the same lateral wall of mounting groove, so can enough simplify temperature display device's overall structure, can carry out the concrete demonstration of a plurality of temperatures through the contact condition of the magnetism spare of the same side and same cell wall again, therefore can make the demonstration of temperature more directly perceived, thereby make the user can understand the temperature that the product shows more easily, so just can improve user's use experience.

In the above-described embodiment, the second magnetic member and the third magnetic member are coupled to the same first magnetic member, but it is understood that in other embodiments, one first magnetic member may be provided for each of the second magnetic member and the third magnetic member.

Preferably, one end of the first elastic piece and one end of the second elastic piece, which are arranged corresponding to the first magnetic piece, are clamped into the first magnetic piece in an interference manner, so that the installation strength between the first elastic piece and the first magnetic piece and between the second elastic piece and the first magnetic piece can be improved.

In any one of the above aspects, preferably, the temperature sensitive actuator includes: the memory metal part is arranged on the heat conductor, is in an initial installation position when the temperature of the heat conductor is lower than a third preset temperature, and can move to the third preset position when the temperature of the heat conductor is higher than or equal to the third preset temperature; and/or the bimetallic strip is arranged on the heat conductor, the bimetallic strip is in an initial installation position when the temperature of the heat conductor is lower than a fourth preset temperature, and the bimetallic strip can move to the fourth preset position when the temperature of the heat conductor is higher than or equal to the fourth preset temperature.

In the technical schemes, the temperature sensing action part comprises a memory metal part, and the memory metal part can act according to the change of the temperature, so that the driving of the memory metal part can be realized through the memory function of the memory metal part, the position of the memory metal part can be related to the temperature of the heat conductor, and the temperature of the heat conductor can be displayed through the position of the memory metal part. The memory metal part with the structure can realize temperature sensing and can automatically act after temperature sensing, so that structures such as an elastic part and the like are not needed, and the structure of a product can be simplified. In another scheme, the temperature sensing action piece can further comprise a bimetallic strip, the bimetallic strip can be bent and deformed according to the change of the temperature, so that the bimetallic strip can be driven by the deformable characteristic of the bimetallic strip at a specific temperature, the position of the bimetallic strip can be related to the temperature of the heat conductor, and the temperature of the heat conductor can be displayed through the position of the bimetallic strip. The bimetallic strip with the structure can realize temperature sensing and can automatically act after temperature sensing, so that structures such as an elastic piece and the like are not needed, and the structure of a product can be simplified.

Preferably, the temperature-sensing action piece comprises a plurality of memory metal pieces with different memory temperatures, and/or the temperature-sensing action piece comprises a plurality of bimetallic strips with different deformation temperatures.

In the technical schemes, the temperature sensing action part comprises a plurality of memory metal parts with different memory temperatures, so that the plurality of temperatures can be displayed by memorizing the positions of the plurality of memory metal parts with different memory temperatures, and the temperature display can be more accurate. The temperature sensing action piece comprises a plurality of bimetallic strips with different deformation temperatures, so that the temperatures can be displayed through the positions of the bimetallic strips with different deformation temperatures, and the temperature display can be more accurate.

The memory metal part is a part made of memory metal material, and the memory metal is also called alloy metal, which can deform after the high temperature rises and can restore to the original shape after the temperature falls.

Among them, the bimetal referred to in this application is an element that deforms when the temperature changes, and the bimetal is generally formed by laminating two layers of alloys having different thermal expansion coefficients. Wherein, the active layer with a larger expansion coefficient is called as the active layer; the layer with the smaller expansion coefficient is called the passive layer. The active layer is mainly made of manganese-nickel-copper alloy, nickel-chromium-iron alloy, nickel-manganese-iron alloy, nickel and the like; the passive layer is mainly made of nickel-iron alloy, and the content of nickel is 34-50%. Due to the difference of the expansion coefficients of the metals, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetallic strip bends towards one side of the passive layer to generate deformation.

In any one of the above technical solutions, preferably, an installation groove is provided on the heat conductor, the temperature sensing operation member is installed in the installation groove, and the temperature display device further includes: and the light-transmitting cover is arranged on the heat conductor and can open or seal the notch of the mounting groove.

In these technical scheme, can set up a mounting groove on the heat conductor, can directly hide the temperature sensing action piece and install in the mounting groove like this, and the printing opacity lid can realize opening and sealing of the notch of mounting groove to can seal and protect the temperature sensing action piece in the mounting groove at the product during operation, thus can prevent that external dust, hydrone etc. from entering into in the mounting groove, just so can improve temperature display device's waterproof and dustproof performance. And the printing opacity lid can the printing opacity make the user can see through the printing opacity lid and watch the condition in the mounting groove, just so make the user can read out the temperature that the product shows according to the position of temperature sensing action piece.

Wherein, the light-transmitting cover may be a transparent cover, such as a glass cover, and the like, and may be made of a heat-resistant polymer transparent material.

In any one of the above technical solutions, preferably, an installation groove is provided on the heat conductor, the temperature sensing action piece is installed in the installation groove, the temperature sensing action piece includes at least one action piece, and the action piece can contact with or separate from the side wall of the installation groove according to the sensed temperature.

In the technical schemes, the temperature sensing action piece comprises at least one action piece, and the action piece is a part which is specifically used for acting after the temperature sensing action piece senses the temperature so as to change the position. The actuating element here may be the second magnetic element or the third magnetic element mentioned in the above technical solutions, may also be a part such as a memory metal element or a bimetal, and of course, may also be a part of other structural types. When the temperature sensing action piece is installed, a certain gap is reserved between the initial installation position of the action piece and a certain side wall surface of the installation groove, and when the temperature sensed by the temperature sensing action piece is greater than a certain temperature value and acts, the action piece can be made to act until the action piece is contacted with the side wall. Therefore, the temperature can be displayed according to the distance between the action piece and the side wall, and the temperature of the product can be simply and conveniently judged according to the distance between the action piece and the side wall when a user uses the temperature display device.

Specifically, for example, the temperature sensing operation member can be reasonably arranged, so that when the temperature of the temperature sensing operation member is lower than a first temperature, a gap is reserved between the left side and the right side of the temperature sensing operation member and the side wall of the mounting groove, and when the temperature of the temperature sensing operation member is higher than or equal to the first temperature, for example, 70 ℃, the temperature sensing operation member can move leftwards to be attached to the left side wall, and when the temperature of the temperature sensing operation member is higher than or equal to a second temperature, for example, 110 ℃, the temperature sensing operation member can move rightwards to be attached to the right side wall of the. Therefore, when the temperature control device is used by a user, the user can accurately judge whether the current temperature of the product is higher than 70 ℃ or lower than 70 ℃ or higher than 110 ℃.

It should be noted that the motion of the temperature-sensitive actuator may be the entire movement of a certain component, or may be the elastic deformation of a certain component, as long as the change of the temperature-sensitive actuator is caused, and the change of the motion of the temperature-sensitive actuator may be the entire movement or the entire deformation of the temperature-sensitive actuator, or may be the motion and the deformation of a certain part of the temperature-sensitive actuator.

In any one of the above technical solutions, preferably, the temperature display device further includes an installation sleeve, and the heat conductor and the temperature sensing actuator are installed on the installation sleeve.

In these technical scheme, the installation between temperature display device and the pan handle etc. is realized to the accessible installation cover, can be preferably establish the temperature display device through the direct cover of installation cover and install on the handle of pan etc.. And the installation cover is preferably the heat insulating sleeve that can high temperature resistant thermal-insulated, and when cooking through the pan etc. the user can directly hold the installation cover and carry out the transport of pan and get and take the operation, and this kind of mode makes the user can direct contact installation cover, and can not scalded. The heat conductor is preferably a metal capable of conducting heat, so that the heat conducting performance of the temperature display device can be ensured, and the accuracy of the temperature display device for displaying the temperature can be ensured.

Wherein, preferably, the heat conductor is installed on the inner wall of installation cover, the installation is sheathe in and is provided with the hole of dodging with the mounting groove intercommunication on the heat conductor corresponding to the heat conductor, and temperature sensing action piece installs in the mounting groove, dodges the hole department and covers and be equipped with the printing opacity lid, the surface of printing opacity lid and the surface parallel and level of installation cover.

In these technical scheme, can install the heat conductor on the inner wall of installation cover, when establishing the direct cover of installation cover and installing on the handle of pan etc. like this, the heat conductor just can directly contact with the handle of pan, and the heat on pan etc. just so can directly transmit to the temperature sensing action through the heat conductor on, just so makes temperature display device can show the temperature of handle etc. more accurately. At this time, it is preferable to provide an avoiding hole on the mounting sleeve, so as to prevent the mounting sleeve from shielding the temperature sensing action member, thereby enabling the user to view the temperature displayed by the temperature display device from the outside of the mounting sleeve. And the light-transmitting cover protects parts in the mounting groove so as to play a role in dust prevention and water prevention.

Of course, in a specific embodiment, the temperature sensing operation member may be provided as a separate component so that the temperature sensing operation member and the heat conductor are detachably connected. In addition, the heat conductor and the part to be displayed with temperature can also be an integral structure, that is, the heat conductor can also be a part of the part to be displayed with temperature, for example, when the part to be displayed with temperature is a handle of a cooker, the heat conductor can be a metal structure arranged on an independent handle, and can also be the handle. For another example, the temperature display device can be mounted on the side wall of the pot, and at this time, the heat conductor can be a metal structure arranged on the side wall of the independent pot, and can also be the side wall of the pot.

In another scheme, the temperature display device can be directly installed through the heat conductor without arranging an installation sleeve, the heat conductor can be of an annular structure or a block structure, and the specific structure of the heat conductor can be arranged according to actual needs.

Embodiments of the second aspect of the invention provide a heating appliance comprising a temperature display device as provided in any of the embodiments of the first aspect.

According to the heating appliance provided by the embodiment of the present invention, the temperature display device provided by any embodiment of the first aspect is provided, and therefore, the heating appliance provided by the embodiment of the present invention has all the beneficial effects of the temperature display device provided by any embodiment of the first aspect, which are not listed here.

In any of the above technical solutions, preferably, the heating appliance further includes: a handle on which the temperature display device is mounted; the heat conductor of the temperature display device and the handle are of a split structure, or the heat conductor of the temperature display device and the handle are of an integrated structure.

In these technical schemes, the heating appliance further comprises a handle, and the handle can be specifically used for carrying and taking the heating appliance. Preferably, the temperature display device may be mounted on the handle so that the temperature of the handle can be detected by the temperature display device, thereby preventing a user from being scalded by the handle when carrying and taking the heating appliance. The heat conductor and the handle of the temperature display device can be of an integrated structure, such as integral injection molding, and of course, the temperature display device can also be of a split structure, such as connecting the handle and the heat conductor in a detachable manner. The structure of the handle and the heat conductor can be set according to actual needs, and is not limited in this respect.

Preferably, the handle comprises a sheath, the temperature display device is mounted on the sheath, and the heat conductor and the sheath are of a split structure or an integrated structure.

In any of the above technical solutions, preferably, the temperature display device is rotatably mounted on the handle; and/or the temperature display device is of an annular structure.

In these solutions, it may be preferable to mount the temperature display device on the front surface of the handle, so that the user can more directly view the temperature displayed by the temperature display device when using the temperature display device. When the temperature display device can display a plurality of temperatures, the temperature display device can be preferably arranged in a ring shape, and the temperature display device can be rotatably sleeved on the handle, so that when the heating appliance is used for heating, a user can conveniently see the temperature displayed on the back of the temperature display device by rotating the temperature display device.

In a specific embodiment, the heating device includes a heating cavity, and the heat conductor is a part of the heating cavity, or the heat conductor and the heating cavity are in a split structure, that is, the heat conductor here may be the heating cavity itself, or may be an additionally arranged metal structure.

Wherein, preferably, the heating appliance is a pot, such as a wok, a water boiling pot, a steamer, a rice cooker or an inner pot of an electric pressure cooker, etc. Of course, the heating device can be other products capable of heating, such as an electric kettle and the like.

Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a temperature display device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a temperature display device according to an embodiment of the present invention;

FIG. 3 is a schematic view of another structure of a temperature display device according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a right-view structure of the temperature display device provided in the embodiment of FIG. 1;

fig. 5 is a schematic top view of the temperature display device provided in the embodiment of fig. 1.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

1 temperature display device, 12 heat conductor, 122 mounting groove, 124 guide groove, 126 limit projection, 14 temperature sensing action piece, 140 first magnetic piece, 142 first elastic piece, 144 second magnetic piece, 146 second elastic piece, 148 third magnetic piece, 16 mounting sleeve.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A temperature display device 1 provided according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 to 5, an embodiment of the first aspect of the present invention provides a temperature display device 1, which includes a thermal conductor 12 and a temperature sensing actuator 14, wherein the temperature sensing actuator 14 is in contact with the thermal conductor 12, is capable of sensing the temperature of the thermal conductor 12, and is capable of actuating between an initial installation position and one or more preset positions according to the sensed temperature.

The temperature display device 1 provided by the embodiment of the invention can be used in products such as heating appliances, and thus can be used for displaying the temperature of the heating appliances. Specifically, the temperature display device 1 includes a heat conductor 12 and a temperature sensing action member 14, the heat conductor 12 is used for conducting heat so as to transfer the heat of the heating appliance to the temperature sensing action member 14, thus the temperature of the heating appliance can be judged according to the temperature sensed by the temperature sensing action member 14, and the subsequent operation can be guided according to the judged temperature of the heating appliance. The temperature sensing actuator 14 is used for sensing the temperature of the thermal conductor 12 and adjusting the working position according to the temperature of the thermal conductor 12, and specifically, for example, the temperature sensing actuator 14 can move from an initial installation position to one or more preset positions according to the sensed temperature, so that the temperature sensing actuator 14 can present various different working states according to the temperature of the thermal conductor 12, which enables the temperature of a product such as a heating appliance to be correlated with the position and the current state of the temperature sensing actuator 14, i.e., the temperature of the product such as the heating appliance can be displayed in different positions or different states of the temperature sensing actuator 14, so that a user can determine the temperature corresponding to the thermal conductor 12 according to the position and the current state of the temperature sensing actuator 14 when using the temperature sensing actuator 14, i.e., the user can substantially determine the temperature of the to-be-detected piece as long as he sees the position of the temperature sensing actuator 14, therefore, the subsequent operation can be guided according to the temperature represented by the position of the temperature sensing action piece 14, and a series of problems caused by scalding or incapability of determining the temperature due to the fact that the user does not know the temperature can be prevented. Specifically, for example, the temperature display device 1 may be installed on a handle of a wok, so that the temperature of the handle can be substantially displayed through the position of the temperature sensing action piece 14, and thus the user can roughly estimate the temperature of the handle through the position of the temperature sensing action piece 14, and thus the user can be prevented from being scalded by the handle, and meanwhile, the temperature of the current wok can also be roughly determined by using the estimated temperature of the handle, so that the user can reasonably control the temperature of the wok according to the temperature of the handle, and further the user experience can be improved. The structure can display the temperature of the heat conductor 12 through the position of the temperature sensing action piece 14 instead of displaying through an electronic display screen and the like, and the display mode is realized by utilizing a mechanical structure more, so that electronic elements can be avoided, the temperature display device 1 can be installed in occasions such as a frying pan and the like with high temperature and inconvenience in power connection and the like, energy can be saved, cost is reduced, and the application range of the temperature display device 1 can be expanded.

In the above embodiment, preferably, the temperature sensing actuator 14 has a plurality of preset positions, each preset position corresponds to a preset temperature, and the temperature sensing actuator 14 can move to the preset position corresponding to the preset temperature when the sensed temperature is greater than or equal to any preset temperature.

In these embodiments, the structure of the temperature sensing actuator 14 may be reasonably configured to enable the temperature sensing actuator 14 to have a plurality of preset temperatures for actions, and the plurality of preset temperatures and the plurality of preset positions are set in a one-to-one correspondence manner, so that the temperature of the temperature sensing element can move to the preset position corresponding to the preset temperature when the temperature of the temperature sensing element is greater than or equal to one of the preset temperatures, and thus the user can determine the temperature of the heat conductor 12 according to the position of the temperature sensing actuator 14. In this arrangement, since the temperature sensing actuator 14 can move to different preset positions when the temperature of the heat conductor 12 is greater than or equal to different preset temperatures, the temperature display device 1 can display a plurality of different temperatures through different preset positions, i.e., the step display of a plurality of temperatures can be realized, so as to improve the accuracy of the temperature display device 1. Specifically, for example when installing temperature display device 1 on the handle of frying pan, can correspond and set up a temperature of presetting about 70 ℃ and a temperature of presetting about 110 ℃ two, and correspond temperature of presetting and set up preset position one, correspond temperature of presetting two and set up preset position two, the user is when using like this, if see temperature sensing action 14 action to presetting position one, then can know that the temperature of handle is greater than preset temperature one, just so can remind user's handle relatively to scald, do not touch with the hand, and if see temperature sensing action 14 action to presetting position two, then the temperature that the user can know the handle is greater than preset temperature two, just so can show the current temperature of frying pan to the user, so that the user can rationally control the temperature of cooking. Of course, a third preset temperature, a third preset position, a fourth preset temperature, a fourth preset position and the like can be correspondingly set to display other temperature nodes, for example, a frying temperature can be correspondingly set to remind a user when to put down the pot during frying.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the temperature-sensitive actuator 14 includes: a first magnetic member 140 mounted on the heat conductor 12; a first elastic member 142 mounted on the heat conductor 12, one end of the first elastic member 142 being engaged with the first magnetic member 140, and the other end of the first elastic member 142 being engaged with the second magnetic member 144; a second magnetic member 144 installed on the heat conductor 12, capable of transferring heat with the heat conductor 12, capable of magnetically cooperating with the first magnetic member 140 when the temperature of the heat conductor 12 is lower than a first preset temperature, and making the first elastic member 142 in a deformed state; the second magnetic member 144 can be demagnetized when the temperature of the heat conductor 12 is greater than or equal to the first preset temperature, and the second magnetic member 144 can move to the first preset position under the action of the first elastic member 142 and the first magnetic member 140 after being demagnetized.

In these embodiments, the temperature sensing operation member 14 includes a first magnetic member 140, a first elastic member 142 and a second magnetic member 144, the first magnetic member 140 is preferably a permanent magnet, and the heat conductor 12 can contact and transfer heat with the second magnetic member 144, so that the heat on the heat conductor 12 can be transferred to the second magnetic member 144, and thus the temperatures of the heat conductor 12 and the second magnetic member 144 can be substantially synchronized, and thus the operation temperature of the temperature sensing operation member 14 can be closer to the temperature of the heat conductor 12, and thus the error of the temperature displayed by the temperature display device 1 can be reduced. In an initial state, that is, when the temperature of the heat conductor 12 is lower than the first preset temperature, the first elastic member 142 can be in a compressed state or a stretched state through the repulsive force or attractive force of the first magnetic member 140 and the second magnetic member 144, and at the same time, the first preset temperature can be reasonably set, so that the second magnetic member 144 can lose magnetism after the temperature is higher than the first preset temperature, and after the second magnetic member 144 loses magnetism, the force between the second magnetic member 144 and the first magnetic member 140 is far greater than the repulsive force generated by the first elastic member 142 due to deformation, so that the second magnetic member 144 can move to the first preset position under the action of the first elastic member 142 and the first magnetic member 140, so that the first preset position of the second magnetic member 144 can be associated with the first preset temperature, and the temperature of the heat conductor 12 can be represented through the first preset position of the second magnetic member 144, thereby, the effect of displaying the temperature can be achieved. The structure can realize the driving of the temperature sensing action piece 14 through the disappearance of magnetic force or magnetic force, the magnetic force control is accurate, and the contact is not needed, thereby not only ensuring the accurate control of the temperature sensing action piece 14, but also simplifying the structure of the temperature sensing action piece 14 and reducing the overall cost of the temperature sensing action piece 14.

Specifically, for example, the second magnetic member 144 may be a magnet made of a magnetic material, and the curie temperature of the magnet is appropriately controlled to match the curie temperature of the magnet with the demagnetizing temperature of the second magnetic member 144, so that the second magnetic member 144 can be demagnetized at a temperature higher than the curie temperature thereof, and the first elastic member 142 can rebound and move the second magnetic member 144 to a corresponding position when the temperature of the heat conductor 12 is higher than or equal to the curie temperature of the second magnetic member 144. In this way, the magnetic conduction or demagnetization of the second magnetic member 144 is realized by its own structure, so that the structure completely realizes the movement of the temperature sensing operation member 14 through a mechanical structure, that is, the structure does not use an electric driving device, so that the structure does not need to use an electric part, thereby saving energy and expanding the application range of the temperature display device 1. Of course, the second magnetic member 144 may be provided as an electromagnet, so that the demagnetization or the magnetic conduction control of the second magnetic member 144 can be performed by the energization of the second magnetic member 144.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the temperature-sensitive actuator 14 further includes: a second elastic member 146 mounted on the heat conductor 12, one end of the second elastic member 146 being engaged with the first magnetic member 140, and the other end of the second elastic member 146 being engaged with the third magnetic member 148; a third magnetic member 148 mounted on the heat conductor 12, capable of transferring heat with the heat conductor 12, capable of magnetically cooperating with the first magnetic member 140 when the temperature of the heat conductor 12 is lower than a second preset temperature, and making the second elastic member 146 in a deformed state; the third magnetic member 148 can be demagnetized when the temperature of the heat conductor 12 is greater than or equal to a second preset temperature, and the third magnetic member 148 can move to a second preset position under the action of the second elastic member 146 and the first magnetic member 140 after being demagnetized.

In these embodiments, the temperature sensing actuator 14 further includes a second elastic member 146 and a third magnetic member 148, and the heat conductor 12 can contact and transfer heat with the third magnetic member 148, so that the heat in the heat conductor 12 can be transferred to the second magnetic member 144, and thus the temperatures of the heat conductor 12 and the second magnetic member 144 can be substantially synchronized, and thus the operating temperature of the temperature sensing actuator 14 can be closer to the temperature of the heat conductor 12, and the error of the temperature displayed by the temperature display device 1 can be reduced. This configuration allows the second elastic member 146 to be in a compressed state or a stretched state by the repulsive or attractive force of the second magnetic member 144 and the third magnetic member 148 when the temperature of the thermal conductor 12 is lower than the second preset temperature, meanwhile, the second preset temperature can be set reasonably, so that the third magnetic element 148 can lose magnetism after the temperature is higher than the second preset temperature, and after the third magnetic element 148 is demagnetized, the force between the third magnetic element 148 and the first magnetic element 140 is smaller than the resilience force of the third elastic element, so that the third magnetic member 148 can move from the current position to the second preset position by the second elastic member 146 and the first magnetic member 140, this enables the second predetermined position of the third magnetic element 148 to be correlated to a second predetermined temperature, therefore, the temperature of the heat conductor 12 can be reflected by the second predetermined position of the third magnetic element 148, so that the temperature display effect can be achieved. This kind of structure can realize the demonstration of first preset temperature through the cooperation of first elastic component 142, second magnetic component 144 and first magnetic component 140, simultaneously, can realize the demonstration of second preset temperature through the cooperation of second elastic component 146, third magnetic component 148 and first magnetic component 140, thereby can realize the step display of a plurality of temperatures, just so can show a plurality of temperatures through same temperature sensing action 14, thereby can carry out more accurate warning and guide to user's multiple follow-up operation through a plurality of temperatures that show, and then can improve user experience.

Preferably, the third magnetic member 148 is a magnet made of a magnetic material, and the curie temperature of the magnet is appropriately controlled to match the curie temperature of the magnet with the demagnetizing temperature of the third magnetic member 148, so that the third magnetic member 148 can be demagnetized when the temperature is higher than the curie temperature, and the second elastic member 146 can rebound and drive the third magnetic member 148 to move. In this way, the third magnetic member 148 is magnetically conductive or demagnetized, which is implemented by its own structure, so that the structure is completely implemented by the mechanical structure to implement the motion of the temperature sensing actuator 14, i.e. the structure does not use the electric driving device, so that the structure does not need the electric parts, thereby saving energy and expanding the application range of the temperature display device 1. Of course, the third magnetic member 148 may be provided as an electromagnet, so that the demagnetization or the magnetic conduction control of the third magnetic member 148 may be performed by the energization of the third magnetic member 148.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the first elastic member 142 is a spring, and/or the second elastic member 146 is a spring.

In such embodiments, the first and second

elastic members

142 and 146 are preferably springs, such that the driving movement of the second and third

magnetic members

144 and 148 can be achieved by the springs. The spring has simple structure and good elasticity and resilience, thereby simplifying the structure of the temperature sensing action piece 14 and ensuring the performance of the temperature sensing action piece 14. Of course, the first elastic member 142 and the second elastic member 146 may also be other elastic structures, such as elastic sheets or elastic bands. Specifically, when the temperature to be displayed is low, the spring may not be provided, but the first elastic member 142 and the second elastic member 146 are preferably provided as an elastic body, which can simplify the structure and improve the reliability, but when the structure of the elastic member is actually provided, the temperature to be displayed is sufficiently considered so that the temperature to be displayed can be matched with the elastic coefficient of the selected elastic member.

When the first elastic member 142 is a spring, the second elastic member 146 is a spring, the second magnetic member 144 is a first magnet, and the third magnetic member 148 is a second magnet, the elastic coefficient k of the spring can be reasonably set according to the curie temperatures of the first magnet and the second magnet, specifically, the spring with different elastic coefficients k can be selected for the magnets with different curie temperatures, and specifically, the spring with lower elastic coefficient can be selected for the magnet with lower curie temperature, so that the accuracy of matching the spring and the magnet can be improved.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the first magnetic member 140 is a permanent magnet; and/or the second magnetic member 144 is a first magnet, the first predetermined temperature is the curie temperature of the first magnet; and/or the third magnetic element 148 is a second magnet, the second predetermined temperature being the curie temperature of the second magnet.

In these embodiments, the first magnetic member 140 is a permanent magnet, so that the first magnetic member 140 can have a permanent magnetic property without being energized, which can simplify the structure of the first magnetic member 140, the second magnetic member 144 is a first magnet, the first predetermined temperature is the curie temperature of the first magnet, the third magnetic member 148 is a second magnet, and the second predetermined temperature is the curie temperature of the second magnet, so that the curie temperature of the first magnet is adapted to the demagnetizing temperature of the second magnetic member 144, and the curie temperature of the second magnet is adapted to the demagnetizing temperature of the third magnetic member 148, so that the second magnetic member 144 and the third magnetic member 148 can be demagnetized when the temperature is higher than the curie temperature thereof, so that the first elastic member 142 and the second elastic member 146 can rebound and drive the corresponding magnets to move. In this way, the magnetic conduction or demagnetization of the second magnetic element 144 and the third magnetic element 148 is realized through the structure thereof, so that the structure completely realizes the movement of the temperature sensing action element 14 through a mechanical structure, that is, the structure does not use an electric driving device, so that the structure does not need to use an electric part, thereby saving energy and expanding the application range of the temperature display device 1.

In any of the above embodiments, preferably, the first preset temperature is equal to or greater than 60 ℃ and equal to or less than 80 ℃, and/or the second preset temperature is equal to or greater than 100 ℃ and equal to or less than 120 ℃.

In these embodiments, the temperature display device 1 may be installed on a handle of a frying pan or the like, at this time, the scalding temperature of the handle may be displayed through the first preset temperature, and the first preset temperature is set in a range of 60 ℃ or more and 80 ℃ or less, so that the temperature display device 1 may remind a user that the temperature of the handle is high when the temperature of the handle is about 60 ℃ to 80 ℃, and the handle is not easily touched, thereby avoiding scalding. Meanwhile, the cooking temperature can be displayed through the second preset temperature, and the second preset temperature is set in the range of more than or equal to 100 ℃ and less than or equal to 120 ℃, so that the temperature display device 1 can display the current cooking temperature of a user when the temperature of the handle is about 100-120 ℃, the user can approximately control the cooking temperature according to the temperature of the handle, and the situation that the cooking temperature is too high or too low is prevented.

Among them, it is preferable that the second magnetic member 144 is a magnet made of nickel-copper alloy, because the curie temperature of the magnet made of nickel-copper alloy is relatively close to 70 ℃, so that the curie temperature of the second magnetic member 144 can be relatively moderate. Of course, the second magnetic member 144 may also be made of other materials, and the material is different, and the curie temperature is different, so that the temperature display device 1 can display can be changed by changing the material of the second magnetic member 144, thereby achieving the function of displaying different temperatures.

Preferably, the third magnetic member 148 is a magnet made of a titanium-nickel alloy, so that the curie temperature of the third magnetic member 148 is relatively close to 110 ℃, and therefore, the curie temperature of the third magnetic member 148 is relatively moderate. Of course, the third magnetic element 148 may be made of other materials, and the material is different, and the curie temperature is different, so that the temperature display device 1 can display can be changed by changing the material of the third magnetic element 148, thereby achieving the function of displaying different temperatures.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the heat conductor 12 is provided with an installation groove 122, and the temperature sensing operation member 14 is installed in the installation groove 122.

In these embodiments, a mounting groove 122 may be disposed on the heat conductor 12, such that the temperature sensing operation member 14 can be directly hidden and mounted in the mounting groove 122, and the temperature sensing operation member 14 can be mounted inside the heat conductor 12 by this arrangement, such that the internal space of the heat conductor 12 can be reasonably utilized, the overall volume of the product can be reduced, and in addition, the arrangement can also prevent the temperature sensing operation member 14 from excessively protruding out of the heat conductor 12, such that the appearance of the temperature display device 1 can be more smooth and beautiful.

In any of the above embodiments, preferably, as shown in fig. 1 and fig. 2, the heat conductor 12 is provided with a mounting groove 122, and the temperature sensing operation member 14 is mounted in the mounting groove 122; the wall of the mounting groove 122 is provided with a guide groove 124, and the second and third

magnetic members

144 and 148 are slidably mounted in the guide groove 124.

In these embodiments, the guide groove 124 may be disposed on the bottom wall of the mounting groove 122 corresponding to the second magnetic member 144 and the third magnetic member 148, so that the second magnetic member 144 and the third magnetic member 148 can only slide in the guide groove 124, and thus the movement of the second magnetic member 144 and the third magnetic member 148 can be guided by the guide groove 124, and the second magnetic member 144 and the third magnetic member 148 can be prevented from shifting or being locked during the movement. Meanwhile, sliders may be provided on the second and third

magnetic members

144 and 148, respectively, so that the second and third

magnetic members

144 and 148 can be slidably mounted in the guide groove 124 through the sliders.

Preferably, as shown in fig. 1, the bottom wall of the mounting groove 122 is provided with guide grooves 124 corresponding to the two ends of the second magnetic member 144 and the third magnetic member 148, so that the two ends of the second magnetic member 144 and the third magnetic member 148 can be slidably mounted in the guide grooves 124 through the sliders.

Further preferably, two limiting protrusions 126 are arranged on the bottom wall of the mounting groove 122 at intervals, and the first magnetic member 140 is limitedly mounted between the two limiting protrusions 126.

In these embodiments, two limiting protrusions 126 may be disposed on the bottom wall of the mounting groove 122 at intervals corresponding to the first magnetic member 140, so that the first magnetic member 140 can be fixed in the mounting groove 122 by the two limiting protrusions 126, and thus the first magnetic member 140 can be prevented from moving, so that the second magnetic member 144 and the third magnetic member 148 can move to the preset position.

Preferably, as shown in fig. 3, the limiting protrusions 126 are disposed at the upper and lower ends of the first magnetic member 140, so that the upper and lower ends of the first magnetic member 140 can be limited at the same time.

Preferably, as shown in fig. 3, the upper end and the lower end of the first magnetic member 140 are both provided with a protruding structure, and the protruding structure can be snapped into a groove formed by the limiting protrusion 126 and the groove wall of the mounting groove 122.

In any of the above embodiments, preferably, as shown in fig. 1 to 3, the first elastic member 142 and the second elastic member 146 are respectively installed at two sides of the first magnetic member 140, the second magnetic member 144 is slidably installed at an end of the first elastic member 142 away from the first magnetic member 140, the third magnetic member 148 is slidably installed at an end of the second elastic member 146 away from the first magnetic member 140, a gap is provided between the second magnetic member 144 and a first sidewall of the mounting groove 122, the second magnetic member 144 can move into contact with the first sidewall under the action of the first elastic member 142 and the first magnetic member 140 after being demagnetized, a gap is provided between the second magnetic member 144 and a second sidewall of the mounting groove 122, and the second magnetic member 144 can move into contact with the second sidewall under the action of the second elastic member 146 and the first magnetic member 140 after being demagnetized.

In these embodiments, it is preferable that the first magnetic member 140 is fixedly installed in the middle of the installation groove 122, and the first elastic member 142 and the second elastic member 146 are installed on two sides, such as the left and right sides, of the first magnetic member 140, respectively, so that the second magnetic member 144 and the third magnetic member 148 can cooperate with the same first magnetic member 140, thereby eliminating the use of one first magnetic member 140. Meanwhile, when the temperature sensing operation member 14 is integrally installed in the installation groove 122, when the second magnetic member 144 and the third magnetic member 148 are initially installed, a certain distance may be reserved between the second magnetic member 144 and the third magnetic member 148 and the corresponding side wall of the installation groove 122, so that the second magnetic member 144 and the third magnetic member 148 can move forward to contact with the corresponding side wall of the installation groove 122 under the action of the elastic member and the first magnetic member 140 after demagnetization, so that a user can judge that the temperature of the heat conductor 12 has reached the temperature of the operation of the second magnetic member 144 or the third magnetic member 148 when seeing the contact between the second magnetic member 144 or the third magnetic member 148 and the corresponding side wall, and can display the temperature to be displayed by the temperature display device 1 according to the relative position relationship between the second magnetic member 144, the third magnetic member 148 and the installation groove 122.

In another embodiment, preferably (not shown in this embodiment), the first elastic member 142 and the second elastic member 146 are installed on the same side of the first magnetic member 140, the second magnetic member 144 is slidably installed at an end of the first elastic member 142 away from the first magnetic member 140, the third magnetic member 148 is slidably installed at an end of the second elastic member 146 away from the first magnetic member 140, a gap is provided between the second magnetic member 144 and the first sidewall of the mounting groove 122, the second magnetic member 144 can move into contact with the first sidewall under the action of the first elastic member 142 and the first magnetic member 140 after being demagnetized, a gap is provided between the second magnetic member 144 and the first sidewall of the mounting groove 122, and the second magnetic member 144 can move into contact with the first sidewall under the action of the second elastic member 146 and the first magnetic member 140 after being demagnetized.

In these embodiments, the first magnetic member 140 may be fixedly installed in the middle of the mounting groove 122, and the first elastic member 142 and the second elastic member 146 may be installed on the same side, such as the left side or the right side, of the first magnetic member 140, respectively, and at the same time, when the second magnetic member 144 and the third magnetic member 148 are initially installed, a certain distance may be reserved between the second magnetic member 144 and the third magnetic member 148 and the corresponding side wall of the mounting groove 122, so that the second magnetic member 144 and the third magnetic member 148 can move forward to contact with the corresponding side wall of the mounting groove 122 under the action of the elastic member and the first magnetic member 140 after being demagnetized, so that a user can judge that the temperature of the heat conductor 12 has reached the action temperature of the second magnetic member 144 or the third magnetic member 148 when seeing the contact between the second magnetic member 144 or the third magnetic member 148 and the corresponding side wall, so that the action temperature of the second magnetic member 144 or the third magnetic member 148 can be determined according to the second magnetic member 144, the second magnetic member, the relative position relationship between the third magnetic member 148 and the mounting groove 122 shows the temperature to be displayed by the temperature display device 1. In the structure, the second magnetic member 144 and the third magnetic member 148 are located on the same side of the first magnetic member 140, so that the surfaces of the second magnetic member 144 and the third magnetic member 148 which are contacted after the second magnetic member 144 and the third magnetic member 148 are operated are the same, that is, after the temperature of the second magnetic member 144 and the third magnetic member 148 reaches the curie temperature and is demagnetized, the second magnetic member 144 and the third magnetic member 148 can be contacted with the same side wall of the mounting groove 122, so that the overall structure of the temperature display device 1 can be simplified, specific display of a plurality of temperatures can be performed through the contact condition of the magnetic members on the same side and the same groove wall, the display of the temperatures can be more intuitive, a user can easily understand the temperature displayed by the product, and the use experience of the user can be improved.

In the above embodiment, the second magnetic member 144 and the third magnetic member 148 are matched with the same first magnetic member 140, but it is understood that in other embodiments, one first magnetic member 140 may be provided for each of the second magnetic member 144 and the third magnetic member 148.

Preferably, as shown in fig. 1, one ends of the first elastic member 142 and the second elastic member 146, which are disposed corresponding to the first magnetic member 140, are inserted into the first magnetic member 140 in an interference manner, so that the installation strength between the first elastic member 142 and the first magnetic member 140 and the second elastic member 146 can be improved.

In any of the above embodiments, preferably, the temperature-sensitive actuator 14 includes: a memory metal part (not shown) mounted on the heat conductor 12, the memory metal part being in an initial mounting position when the temperature of the heat conductor 12 is less than a third preset temperature, the memory metal part being capable of moving to the third preset position when the temperature of the heat conductor 12 is greater than or equal to the third preset temperature; and/or a bimetal (not shown) mounted on the heat conductor 12, the bimetal being in an initial mounting position when the temperature of the heat conductor 12 is less than a fourth preset temperature, the bimetal being capable of moving to the fourth preset position when the temperature of the heat conductor 12 is greater than or equal to the fourth preset temperature.

In these embodiments, the temperature-sensing actuator 14 includes a memory metal element, and the memory metal element can operate according to the temperature change, so that the memory function of the memory metal element can be used to drive the memory metal element, and thus the position of the memory metal element can be related to the temperature of the heat conductor 12, and the temperature of the heat conductor 12 can be displayed through the position of the memory metal element. The memory metal part with the structure can realize temperature sensing and can automatically act after temperature sensing, so that structures such as an elastic part and the like are not needed, and the structure of a product can be simplified. In another aspect, the temperature sensing actuator 14 may further include a bimetal, and the bimetal may be capable of bending and deforming according to a change in temperature, so that the bimetal may be driven by the characteristic that the bimetal is deformable at a specific temperature, and thus, the position of the bimetal may be related to the temperature of the heat conductor 12, and the temperature of the heat conductor 12 may be displayed by the position of the bimetal. The bimetallic strip with the structure can realize temperature sensing and can automatically act after temperature sensing, so that structures such as an elastic piece and the like are not needed, and the structure of a product can be simplified.

Preferably, the temperature-sensitive action piece 14 comprises a plurality of memory metal pieces with different memory temperatures, and/or the temperature-sensitive action piece 14 comprises a plurality of bimetallic strips with different deformation temperatures.

In the embodiments, the temperature sensing actuator 14 includes a plurality of memory metal members with different memory temperatures, so that the plurality of temperatures can be displayed by memorizing the positions of the plurality of memory metal members with different memory temperatures, thereby making the temperature display more accurate. And the temperature sensing action member 14 comprises a plurality of bimetallic strips with different deformation temperatures, so that a plurality of temperatures can be displayed through the positions of the bimetallic strips with different deformation temperatures, and the temperature display can be more accurate.

In any of the above embodiments, preferably, the heat conductor 12 is provided with an installation groove 122, the temperature sensing operation member 14 is installed in the installation groove 122, and the temperature display device 1 further includes: and a light-transmitting cover (not shown) mounted on the heat conductor 12 and capable of opening or sealing the notch of the mounting groove 122.

In these embodiments, an installation groove 122 may be disposed on the heat conductor 12, such that the temperature sensing operation member 14 may be directly hidden and installed in the installation groove 122, and the transparent cover may realize opening and sealing of the notch of the installation groove 122, so as to seal and protect the temperature sensing operation member 14 in the installation groove 122 when the product is in operation, thereby preventing external dust, water molecules, etc. from entering into the installation groove 122, and thus, the waterproof and dustproof performance of the temperature display device 1 may be improved. The light-transmitting cover can transmit light so that a user can see the condition in the mounting groove 122 through the light-transmitting cover, and thus the user can read out the temperature displayed by the product according to the position of the temperature sensing action piece 14.

Among them, preferably, the light-transmitting cover may be a transparent cover, such as a glass cover, etc., and preferably, the light-transmitting cover may be made of a heat-resistant polymer transparent material.

In any of the above embodiments, preferably, the heat conductor 12 is provided with an installation groove 122, the temperature sensing operation member 14 is installed in the installation groove 122, and the temperature sensing operation member 14 includes at least one operation member capable of contacting with or separating from a sidewall of the installation groove 122 according to the sensed temperature.

In these embodiments, the temperature sensitive actuator 14 includes at least one actuator, where the actuator is a component of the temperature sensitive actuator 14 that is specifically configured to actuate to change position upon sensing a temperature. The actuating element can be the second magnetic element 144 or the third magnetic element 148 mentioned in the above embodiments, a memory metal element or a bimetal, or other types of elements. When the temperature-sensing actuator 14 is mounted, a certain gap is reserved between the initial mounting position of the actuator and a certain sidewall surface of the mounting groove 122, and when the temperature sensed by the temperature-sensing actuator 14 is greater than a certain temperature value and acts, the actuator can be actuated to contact the sidewall. Therefore, the temperature can be displayed according to the distance between the action piece and the side wall, and the temperature of the product can be simply and conveniently judged according to the distance between the action piece and the first side wall when a user uses the temperature display device.

Specifically, for example, the temperature sensing actuator 14 may be reasonably arranged, so that when the temperature of the temperature sensing actuator 14 is lower than the first temperature, a gap is reserved between the left side and the right side of the temperature sensing actuator 14 and the sidewall of the mounting groove 122, and when the temperature of the temperature sensing actuator 14 is higher than or equal to the first temperature, for example, 70 ℃, the temperature sensing actuator 14 can move leftwards to be attached to the sidewall of the left side, and when the temperature of the temperature sensing actuator 14 is higher than or equal to the second temperature, for example, 110 ℃, the temperature sensing actuator can move rightwards to be attached to the sidewall of the right side of the mounting groove 122. Therefore, when the temperature control device is used by a user, the user can accurately judge whether the current temperature of the product is higher than 70 ℃ or lower than 70 ℃ or higher than 110 ℃.

It should be noted that the motion of the temperature sensing actuator 14 may be the entire movement of a certain component, or may be the elastic deformation of a certain component, as long as the change of the temperature sensing actuator 14 is caused, and the motion change of the temperature sensing actuator 14 may be the entire movement or the entire deformation of the temperature sensing actuator 14, or may be the motion or the deformation of a certain part of the temperature sensing actuator 14.

In any of the above embodiments, preferably, as shown in fig. 1 to 4, the temperature display device 1 further includes a mounting sleeve 16, and the thermal conductor 12 and the temperature sensing actuator 14 are mounted on the mounting sleeve 16.

In these embodiments, the temperature display device 1 can be mounted on the handle of the cookware through the mounting sleeve 16, i.e. the temperature display device 1 can be directly mounted on the handle of the cookware through the mounting sleeve 16. The mounting sleeve 16 is preferably a heat insulating sleeve capable of resisting high temperature and insulating heat, so that a user can directly hold the mounting sleeve 16 to carry and take a pot when cooking through the pot and the like, and the user can directly contact the mounting sleeve 16 in such a way that the user is not scalded. The heat conductor 12 is preferably a metal capable of conducting heat, so that the heat conducting performance of the temperature display device 1 can be ensured, and the accuracy of the temperature display device 1 can be ensured.

Preferably, the heat conductor 12 is mounted on the inner wall of the mounting sleeve 16, the mounting sleeve 16 is provided with an avoidance hole corresponding to the heat conductor 12 and communicated with the mounting groove 122 on the heat conductor 12, the temperature sensing actuator 14 is mounted in the mounting groove 122, the avoidance hole is covered with a light transmitting cover, and the outer surface of the light transmitting cover is flush with the outer surface of the mounting sleeve 16.

In these embodiments, the heat conductor 12 can be installed on the inner wall of the mounting sleeve 16, so that when the mounting sleeve 16 is directly installed on the handle of the pot, the heat conductor 12 can directly contact with the handle of the pot, so that the heat in the pot can be directly transmitted to the temperature-sensing actuator 14 through the heat conductor 12, and the temperature display device 1 can more accurately display the temperature of the handle. In this case, it is preferable to provide a relief hole in the mounting sleeve 16 so as to prevent the mounting sleeve 16 from shielding the temperature sensitive actuator 14, thereby allowing the user to view the temperature displayed by the temperature display device 1 from the outside of the mounting sleeve 16. And the transparent cover protects the parts in the mounting groove 122 for dust-proof and water-proof functions.

Of course, in a specific embodiment, the temperature sensing actuator 14 may be provided as a separate component so that the temperature sensing actuator 14 and the heat conductor 12 are detachably connected. In addition, the heat conductor 12 and the part to be displayed with temperature may be an integral structure, that is, the heat conductor 12 may also be a part of the part to be displayed with temperature, for example, when the temperature to be displayed is a handle of a pot, the heat conductor 12 may be a metal structure provided on a separate handle, or may be the handle itself. For another example, the temperature display device 1 may be mounted on a side wall of a pot, and at this time, the heat conductor 12 may be a metal structure provided on the side wall of the pot or the side wall of the pot itself.

An embodiment of the second aspect of the present invention provides a heating appliance (not shown in the figures) comprising the temperature display device 1 provided in any one of the embodiments of the first aspect.

According to the heating appliance provided by the embodiment of the present invention, the temperature display device 1 provided by any embodiment of the first aspect is provided, and therefore, the heating appliance provided by the embodiment of the present invention has all the beneficial effects of the temperature display device 1 provided by any embodiment of the first aspect, which are not listed here.

In any of the above embodiments, preferably, the heating appliance further comprises: the temperature display device 1 is arranged on the handle; the heat conductor 12 and the handle of the temperature display device 1 are of a split structure, or the heat conductor 12 and the handle of the temperature display device 1 are of an integrated structure.

In these embodiments, the heating device further includes a handle, and the handle is specifically used for carrying and taking the heating device. Preferably, the temperature display device 1 may be mounted on the handle, so that the temperature of the handle may be detected by the temperature display device 1, thereby preventing a user from being scalded by the handle when carrying and taking the heating appliance. The heat conductor 12 and the handle of the temperature display device 1 may be an integral structure, such as an integral injection molding, or may be a split structure, such as a detachable connection of the handle and the heat conductor 12. The structure of the handle and the heat conductor 12 can be set according to actual needs, and is not limited in particular here.

Wherein, preferably, the handle includes the sheath, and temperature display device 1 is installed on the sheath, and heat conductor 12 and sheath be split type structure, or heat conductor 12 and sheath formula structure as an organic whole.

It is further preferred that the temperature display device 1 is rotatably mounted on the handle, and/or that the temperature display device 1 is of annular configuration.

In these embodiments, it may be preferable to mount the temperature display device 1 on the front surface of the handle, so that the user can more directly view the temperature displayed by the temperature display device 1 when using. When the temperature display device 1 can display a plurality of temperatures, the temperature display device 1 may be preferably arranged in a ring shape, and the temperature display device 1 may be preferably rotatably mounted on the handle in a sleeving manner, so that when the heating appliance is used for heating, a user can conveniently see the temperature displayed on the back of the temperature display device 1 by rotating the temperature display device 1.

In a specific embodiment, the heating device includes a heating cavity, the heat conductor 12 is a part of the heating cavity, or the heat conductor 12 and the heating cavity are in a split structure, that is, the heat conductor 12 here may be the heating cavity itself, or may be an additionally disposed metal structure.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A temperature display device, comprising:

a heat conductor;

the temperature sensing action piece is in contact with the heat conductor, can sense the temperature of the heat conductor and can act between an initial installation position and one or more preset positions according to the sensed temperature.

2. The temperature display device according to claim 1,

the temperature sensing action piece is provided with a plurality of preset positions, each preset position corresponds to a preset temperature, and the temperature sensing action piece can move to the preset position corresponding to the preset temperature when the sensed temperature is larger than or equal to any preset temperature.

3. The temperature display device of claim 1, wherein the temperature sensitive actuator comprises:

a first magnetic member mounted on the heat conductor;

the first elastic piece is arranged on the heat conductor, one end of the first elastic piece is matched with the first magnetic piece, and the other end of the first elastic piece is matched with the second magnetic piece;

the second magnetic part is arranged on the heat conductor, can transfer heat with the heat conductor, can be in magnetic force fit with the first magnetic part when the temperature of the heat conductor is lower than a first preset temperature, and enables the first elastic part to be in a deformation state;

the second magnetic part can be demagnetized when the temperature of the heat conductor is greater than or equal to a first preset temperature, and the second magnetic part can move to a first preset position under the action of the first elastic part and the first magnetic part after demagnetization.

4. The temperature display device of claim 3, wherein the temperature sensitive actuator further comprises:

the second elastic piece is arranged on the heat conductor, one end of the second elastic piece is matched with the first magnetic piece, and the other end of the second elastic piece is matched with the third magnetic piece;

the third magnetic part is arranged on the heat conductor, can transfer heat with the heat conductor, can be in magnetic force fit with the first magnetic part when the temperature of the heat conductor is lower than a second preset temperature, and enables the second elastic part to be in a deformation state;

the third magnetic part can be demagnetized when the temperature of the heat conductor is greater than or equal to a second preset temperature, and the third magnetic part can move to a second preset position under the action of the second elastic part and the first magnetic part after demagnetization.

5. The temperature display device according to claim 4,

the first elastic piece is a spring, and/or the second elastic piece is a spring; and/or

The first magnetic part is a permanent magnet; and/or

The second magnetic part is a first magnet, and the first preset temperature is the Curie temperature of the first magnet; and/or

The third magnetic part is a second magnet, and the second preset temperature is the Curie temperature of the second magnet; and/or

The first preset temperature is more than or equal to 60 ℃ and less than or equal to 80 ℃, and/or the second preset temperature is more than or equal to 100 ℃ and less than or equal to 120 ℃.

6. The temperature display device according to claim 4,

the heat conductor is provided with an installation groove, and the temperature sensing action piece is installed in the installation groove;

a guide groove is formed in the wall of the mounting groove, and the second magnetic piece and the third magnetic piece can be slidably mounted in the guide groove; and/or

Two limiting bulges are arranged on the bottom wall of the mounting groove at intervals, and the first magnetic part is mounted between the two limiting bulges in a limiting manner; and/or

The first elastic piece and the second elastic piece are respectively arranged at two sides of the first magnetic piece, the second magnetic piece is slidably arranged at one end, far away from the first magnetic piece, of the first elastic piece, the third magnetic piece is slidably arranged at one end, far away from the first magnetic piece, of the second elastic piece, a gap is formed between the second magnetic piece and the first side wall of the mounting groove, the second magnetic piece can move to be in contact with the first side wall under the action of the first elastic piece and the first magnetic piece after demagnetization, a gap is formed between the second magnetic piece and the second side wall of the mounting groove, and the second magnetic piece can move to be in contact with the second side wall or can move to be in contact with the second side wall under the action of the second elastic piece and the first magnetic piece after demagnetization

The first elastic piece and the second elastic piece are arranged on the same side of the first magnetic piece, the second magnetic piece is arranged at one end, far away from the first magnetic piece, of the first elastic piece in a sliding mode, the third magnetic piece is arranged at one end, far away from the first magnetic piece, of the second elastic piece in a sliding mode, a gap is formed between the second magnetic piece and the first side wall of the mounting groove, the second magnetic piece can move to be in contact with the first side wall under the action of the first elastic piece and the first magnetic piece after demagnetization, a gap is formed between the second magnetic piece and the first side wall of the mounting groove, and the second magnetic piece can move to be in contact with the first side wall under the action of the second elastic piece and the first magnetic piece after demagnetization.

7. The temperature display device of claim 1, wherein the temperature sensitive actuator comprises:

the memory metal part is arranged on the heat conductor, is in an initial installation position when the temperature of the heat conductor is lower than a third preset temperature, and can move to the third preset position when the temperature of the heat conductor is higher than or equal to the third preset temperature; and/or

The bimetal strip is arranged on the heat conductor and is in an initial installation position when the temperature of the heat conductor is lower than a fourth preset temperature, and the bimetal strip can move to the fourth preset position when the temperature of the heat conductor is higher than or equal to the fourth preset temperature.

8. The temperature display device according to any one of claims 1 to 7, wherein a mounting groove is provided on the heat conductor, the temperature sensing operation member is mounted in the mounting groove, and the temperature display device further comprises:

and the light-transmitting cover is arranged on the heat conductor and can open or seal the notch of the mounting groove.

9. Temperature display device according to claim 1 or 2,

the heat conductor is provided with an installation groove, the temperature sensing action piece is installed in the installation groove and comprises at least one action piece, and the action piece can be contacted with or separated from the side wall of the installation groove according to the sensed temperature; and/or

The temperature display device further comprises an installation sleeve, and the heat conductor and the temperature sensing action piece are installed on the installation sleeve.

10. A heating appliance comprising the temperature display device according to any one of claims 1 to 9.

11. The heating appliance according to claim 10, further comprising:

a handle on which the temperature display device is mounted;

the heat conductor of the temperature display device and the handle are of a split structure, or the heat conductor of the temperature display device and the handle are of an integrated structure.

12. The heating appliance according to claim 11,

the temperature display device is rotatably mounted on the handle; and/or

The temperature display device is of an annular structure.