Temperature measuring device and hob

Abstract

The application relates to a temperature measuring device and a cooking range. The temperature measuring device comprises a temperature measuring probe and a shell. The peripheral surface of the temperature measuring probe is made of a heat-conducting material. The shell is arranged on the outer periphery of the temperature measuring probe. The shell and the peripheral surface of the temperature measuring probe enclose a cooling cavity. The cooling cavity is provided with circulating cooling liquid. In the above-mentioned scheme, the outer periphery of the temperature measuring probe is made of a heat-conducting material. The cooling cavity containing the circulating cooling liquid is arranged on the outer periphery. The temperature of the peripheral surface of the temperature measuring probe is reduced by the circulating cooling liquid. The temperature of the peripheral space of the temperature measuring probe is reduced. The influence of the flame in the burner on the temperature measured by the temperature measuring probe is reduced. The accuracy of the temperature measured by the temperature measuring device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking utensils, in particular to a temperature measuring device and a cooking utensil. BACKGROUND

[0002] A cooking utensil, such as a gas stove or a gas heater, heats a pot by burning gas to cook food. There are some safety hazards in the use of the cooking utensil, especially when the pot is dry or the temperature is too high, which may cause a fire or other safety accidents. Therefore, the existing gas stove or gas heater usually has a dry burning prevention probe arranged at the bottom of the pot to monitor the temperature of the pot bottom.

[0003] However, this design has the problem of inaccurate temperature measurement. The dry burning prevention probe is exposed to the flame while measuring the temperature of the pot bottom, which causes the temperature measured by the probe to be directly affected by the flame, so that the actual temperature of the pot bottom cannot be accurately reflected. In other words, the temperature measured by the probe is actually the temperature of the flame, not the temperature of the pot bottom, which greatly reduces the accuracy of the dry burning prevention function. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a temperature measuring device and a cooking utensil to solve the problem of inaccurate temperature measurement of the existing temperature measuring device for the cooking utensil.

[0005] A temperature measuring device includes a temperature measuring probe and a shell. The peripheral surface of the temperature measuring probe is made of a heat-conducting material. The shell is arranged on the outer periphery of the temperature measuring probe. The shell and the peripheral surface of the temperature measuring probe enclose a cooling cavity. A circulating cooling liquid is arranged in the cooling cavity.

[0006] In one embodiment, the shell is provided with a liquid inlet and a liquid outlet. The temperature measuring device further includes an inlet pipe and an outlet pipe. The inlet pipe is connected to the liquid inlet to communicate the cooling cavity with an external cooling liquid source. The outlet pipe is connected to the liquid outlet to communicate the cooling cavity with the external cooling liquid source, so as to circulate the cooling liquid between the external cooling liquid source and the cooling cavity.

[0007] In one embodiment, the shell includes an outer shell and a lower shell connected to each other. The outer shell and the lower shell are arranged around the outer periphery of the temperature measuring probe. The lower shell is connected to the bottom end of the outer shell. The lower shell includes a bottom surface arranged at an angle with the axial direction of the temperature measuring probe. The liquid inlet and the liquid outlet are arranged on the bottom surface.

[0008] In one embodiment, the inlet pipe is arranged in the liquid inlet, and the outlet pipe is arranged in the liquid outlet. The height of the inlet pipe inserted into the cooling cavity is lower than the height of the outlet pipe inserted into the cooling cavity.

[0009] In one embodiment, the top of the housing includes a top surface that defines the cooling cavity, the top surface being inclined upwards toward the temperature probe, and the top surface being connected to the temperature probe in the direction close to the temperature probe.

[0010] In one embodiment, the top of the housing is provided with a liquid spraying port, which is connected to the cooling chamber and the outside. The temperature measuring device also includes a one-way sealing member, which can selectively block the liquid spraying port or allow the liquid spraying port to be connected in the direction from the cooling chamber to the outside.

[0011] In one embodiment, the one-way sealing member is a plug, which is at least partially inserted into the spray nozzle to block the spray nozzle, and the plug is removable from the spray nozzle toward the side away from the cooling chamber.

[0012] In one embodiment, the spray nozzle is positioned diagonally above the temperature probe.

[0013] In one embodiment, the temperature measuring device further includes an outlet valve acting on the outlet pipe or the outlet port, the outlet valve being used to control the flow of coolant from the cooling chamber toward an external coolant source.

[0014] In one embodiment, the opening and closing of the liquid outlet valve is controlled by the temperature detected by the temperature probe.

[0015] A stove includes a temperature measuring device as described in any of the above embodiments, and also includes a pot and a burner arranged vertically. The burner has an internally hollow annular structure, the temperature measuring probe is located below the pot, and the burner is located on the outer periphery of the temperature measuring probe.

[0016] The temperature measuring device provided in the above scheme uses a heat-conducting material for the outer periphery of the temperature measuring probe and a cooling cavity containing circulating coolant is set in the outer periphery of the probe. The circulating coolant lowers the temperature of the periphery of the temperature measuring probe, reduces the temperature of the space around the temperature measuring probe, reduces the influence of the flame in the burner on the temperature measured by the temperature measuring probe, and thus improves the accuracy of the temperature measured by the temperature measuring device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the stove in one embodiment of this application.

[0018] Figure 2 for Figure 1 A cross-sectional structural diagram of a cooking stove.

[0019] Figure 3 for Figure 2 A schematic diagram of the temperature measuring device.

[0020] Figure 4 For Figure 3 The cross-sectional structure of the temperature measuring device is shown in the figure.

[0021] Figure 5 For Figure 3 The structure of the temperature measuring probe and the shell is shown in the figure.

[0022] Explanation of reference signs:

[0023] 10, stove; 100, temperature measuring device; 110, temperature measuring probe; 120, shell; 121, temperature reducing cavity; 122, liquid inlet; 123, liquid outlet; 124, outer shell; 125, lower shell; 1251, bottom surface; 126, top surface; 127, liquid injection port; 130, liquid inlet pipe; 140, liquid outlet pipe; 150, plug; 200, pot; 300, burner; 400, support; 500, stove body. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0027] In the present application, unless specifically defined otherwise and limited, if there are terms such as "mount", "connect", "connect", "fix", etc., these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In the present application, unless specifically defined otherwise and limited, if there are similar descriptions such as "first feature on" or "second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] It should be noted that if an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and are not the only embodiment.

[0030] Referring to Figure 1 and Figure 2 , Figure 1 and Figure 2 shows the structure of the stove 10 in an embodiment of the present application. The stove 10 provided by the embodiment of the present application can be a gas stove, a gas stove, etc. As Figure 1 shown, the stove 10 includes the temperature measuring device 100 in any of the following embodiments, and further includes the pot 200 and the burner 300 arranged above and below. The burner 300 is in the form of a hollow ring structure, the temperature measuring probe 110 is located below the pot 200, and the burner 300 is located at the outer periphery of the temperature measuring probe 110. As Figure 1 and Figure 2 shown, the stove 10 further includes the stove body 500 and the bracket 400, the bracket 400, the burner 300 and the temperature measuring device 100 are all mounted on the stove body 500, and the bracket 400 is located at the outer periphery of the burner 300 for supporting the pot 200.

[0031] Combining Figures 2 to 4 as shown, Figures 2 to 4 The structure of the temperature measuring device 100 in an embodiment of the present application is shown. The temperature measuring device 100 provided by the embodiment of the present application is used to detect the temperature of the pot 200 to prevent the pot 200 from being dry-burned. The temperature measuring device 100 comprises a temperature measuring probe 110 and a shell 120. The temperature measuring probe 110 is used to detect the temperature. The peripheral surface of the temperature measuring probe 110 is made of a heat-conducting material, so that the circulating cooling liquid in the following cooling cavity 121 can have a cooling effect on the peripheral surface of the temperature measuring probe 110. The shell 120 is arranged on the outer periphery of the temperature measuring probe 110. The shell 120 and the peripheral surface of the temperature measuring probe 110 surround to form a cooling cavity 121. The circulating cooling liquid is arranged in the cooling cavity 121 to reduce the temperature of the peripheral surface of the temperature measuring probe 110 through the circulating cooling liquid, reduce the temperature of the space around the temperature measuring probe 110, and reduce the influence of the flame in the burner 300 on the temperature measured by the temperature measuring probe 110.

[0032] In the present embodiment, the cooling liquid is a water flow, that is, the circulating cooling liquid is a circulating water flow. In other embodiments, the cooling liquid can also be any cooling fluid, such as a glycol-water solution, etc.

[0033] As Figure 5 shown, in one of the embodiments, the shell 120 is provided with a liquid inlet 122 and a liquid outlet 123. The temperature measuring device 100 further comprises an inlet pipe 130 and an outlet pipe 140. The inlet pipe 130 is connected to the liquid inlet 122 to communicate the cooling cavity 121 and an external cooling liquid source, so that the cooling liquid of the external cooling liquid source can enter the cooling cavity 121. The outlet pipe 140 is connected to the liquid outlet 123 to communicate the cooling cavity 121 and the external cooling liquid source, so that the cooling liquid in the cooling cavity 121 can flow back to the external cooling liquid source. The cooling liquid is circulated between the cooling cavity 121 and the external cooling liquid source, so that the cooling liquid can be kept at a relatively low temperature, thereby keeping the peripheral surface of the temperature measuring probe 110 at a cooling effect.

[0034] As Figures 3 to 5 shown, in one of the embodiments, the shell 120 comprises an outer shell 124 and a lower shell 125 connected to each other. The outer shell 124 and the lower shell 125 are arranged around the outer periphery of the temperature measuring probe 110. The lower shell 125 is connected to the bottom end of the outer shell 124. As Figure 5 shown, the lower shell 125 comprises a bottom surface 1251 arranged at an angle with the axial direction of the temperature measuring probe 110. The liquid inlet 122 and the liquid outlet 123 are arranged on the bottom surface 1251. In the present embodiment, the bottom surface 1251 is arranged perpendicularly to the axial direction of the temperature measuring probe 110. In other embodiments, the bottom surface 1251 can be arranged at other angles with the axial direction of the temperature measuring probe 110. In other embodiments, the liquid inlet 122 and the liquid outlet 123 can also have a height difference,

[0035] In this embodiment, both the inlet 122 and the outlet 123 are located on the bottom surface 1251, so the inlet 122 and the outlet 123 are flush in height. In one embodiment, the inlet pipe 130 passes through the inlet 122, and the outlet pipe 140 passes through the outlet 123, and so on. Figure 4 As shown, the inlet pipe 130 is inserted into the cooling chamber 121 at a lower height than the outlet pipe 140, so that during coolant circulation, the coolant can be stored below the height of the outlet pipe 140. In other embodiments, the presence of coolant in the cooling chamber 121 can also be maintained by controlling the coolant flow rates of the inlet pipe 130 and the outlet pipe 140.

[0036] like Figures 3 to 5 As shown, in one embodiment, the top of the housing 120 includes a top surface 126 that participates in defining the cooling cavity 121, as... Figure 4 As shown, the top surface 126 is inclined upwards in the direction towards the temperature probe 110, and the top surface 126 is connected to the temperature probe 110 in the direction close to the temperature probe 110, so as to seal the top of the cooling cavity 121 and prevent coolant from overflowing from the top surface 126.

[0037] In fact, existing anti-dry-burn probes can only cut off the gas supply when they detect that the bottom of the pot is too hot to prevent dry burning, and their safety protection function is limited. This is because such flame-cutting measures cannot effectively extinguish existing fires or other dangerous situations. Once a fire occurs in the cookware 200, simply cutting off the flame cannot completely solve the problem; more effective safety protection measures are needed.

[0038] like Figures 3 to 5 As shown, in one embodiment, a liquid spray port 127 is provided at the top of the housing 120. The liquid spray port 127 connects to the cooling chamber 121 and the outside. The temperature measuring device 100 also includes a one-way sealing member. The one-way sealing member can selectively block the liquid spray port 127 or allow the liquid spray port 127 to connect in the direction from the cooling chamber 121 to the outside. The one-way sealing member has at least two states: blocking the liquid spray port 127 and allowing the liquid spray port 127 to connect in the direction from the cooling chamber 121 to the outside. The states of the one-way sealing member can be switched. It can be understood that when the liquid spray port 127 is connected in the direction from the cooling chamber 121 to the outside, it can be a one-way connection from the cooling chamber 121 to the outside, or a two-way connection between the cooling chamber 121 and the outside.

[0039] In the embodiment, the one-way sealing member is a plug 150, which is at least partially inserted into the liquid outlet 127 to seal the liquid outlet 127 to prevent the cooling liquid from overflowing in the normal state, and the plug 150 is connected to the liquid outlet 127 in a manner that can be pulled out towards the side away from the cooling cavity 121, so that when the cooling liquid in the cooling cavity 121 has a relatively large pressure, the cooling liquid can push the plug 150 outwards to connect the liquid outlet 127 from the cooling cavity 121 to the outside, so that the cooling liquid can be sprayed out of the liquid outlet 127, thereby achieving the effect of extinguishing the fire by using the cooling liquid. In other embodiments, the one-way sealing member can also be a one-way valve or the like that connects the cooling cavity 121 to the outside.

[0040] As shown in the drawings, in one embodiment, the liquid outlet 127 is arranged obliquely upwards towards the temperature measuring probe 110, so as to spray the cooling liquid towards the bottom of the pot 200 and the direction of the burner 300, thereby achieving the effect of extinguishing the fire. Figures 3 to 5

[0041] In one embodiment, the temperature measuring device 100 further comprises a liquid outlet valve acting on the liquid outlet pipe 140 or the liquid outlet 123, which is used to control the flow of the cooling liquid from the cooling cavity 121 to the outside cooling liquid source. When there is an abnormal fire, the liquid outlet valve is closed to stop the flow of the cooling liquid from the cooling cavity 121 to the outside cooling liquid source, so that the cooling liquid in the cooling cavity 121 only enters but does not exit, and the pressure in the cooling cavity 121 increases with the entering of the cooling liquid. When the pressure in the cooling cavity 121 reaches a certain level, the cooling liquid will push the plug 150 outwards to connect the liquid outlet 127 from the cooling cavity 121 to the outside, so that the cooling liquid can be sprayed out of the liquid outlet 127, thereby achieving the effect of extinguishing the fire by using the cooling liquid.

[0042] In one embodiment, the opening and closing of the liquid outlet valve is controlled by the temperature detected by the temperature measuring probe 110. When the temperature detected by the temperature measuring probe 110 is obviously abnormal, for example, the temperature is continuously high, indicating that there is an abnormal risk of fire, the liquid outlet valve is closed to stop the flow of the cooling liquid from the cooling cavity 121 to the outside cooling liquid source.

[0043] The temperature measuring device 100 provided in the above scheme has the following advantages. The outer periphery of the temperature measuring probe 110 is made of a heat-conducting material, and the cooling cavity 121 containing the circulating cooling liquid is arranged on the outer periphery, so that the temperature of the temperature measuring probe 110 is reduced by the circulating cooling liquid, the temperature of the space around the temperature measuring probe 110 is reduced, and the influence of the flame in the burner 300 on the temperature measured by the temperature measuring probe 110 is reduced, thereby improving the accuracy of the temperature measured by the temperature measuring device 100.

[0044] ​Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as there is no conflict, any combination of the technical features should be considered within the scope of the present disclosure.

[0045] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A temperature measuring device, characterized by, The temperature measuring device comprises: a temperature measuring probe, a circumferential surface of the temperature measuring probe being made of a heat conductive material; and a shell arranged at an outer periphery of the temperature measuring probe, and the shell and the circumferential surface of the temperature measuring probe together define a cooling cavity, and a circulating cooling liquid is arranged in the cooling cavity.

2. The temperature measuring device according to claim 1, characterized in that The shell is provided with a liquid inlet and a liquid outlet, and the temperature measuring device further comprises a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the liquid inlet to connect the cooling cavity and an external cooling liquid source, and the liquid outlet pipe is connected to the liquid outlet to connect the cooling cavity and the external cooling liquid source, so as to realize circulation of the cooling liquid between the external cooling liquid source and the cooling cavity.

3. The temperature measuring device according to claim 2, characterized in that The shell comprises an upper shell and a lower shell connected together, the upper shell and the lower shell are arranged around the outer periphery of the temperature measuring probe, the lower shell is connected to the bottom end of the upper shell, and the lower shell comprises a bottom surface arranged at an angle with the axial direction of the temperature measuring probe, and the liquid inlet and the liquid outlet are arranged on the bottom surface.

4. The temperature measuring device according to claim 2 or 3, characterized in that The liquid inlet pipe is arranged in the liquid inlet, the liquid outlet pipe is arranged in the liquid outlet, and the height of the liquid inlet pipe inserted into the cooling cavity is lower than the height of the liquid outlet pipe inserted into the cooling cavity.

5. The temperature measuring device according to claim 1, wherein The top end of the shell comprises a top surface defining the cooling cavity, the top surface is inclined upward in the direction towards the temperature measuring probe, and the direction close to the temperature measuring probe is connected to the temperature measuring probe.

6. The temperature measuring device according to claim 2, wherein The top end of the shell is provided with a liquid outlet, the liquid outlet is connected between the cooling cavity and the outside, and the temperature measuring device further comprises a one-way sealing member, the one-way sealing member selectively seals the liquid outlet or allows the liquid outlet to communicate in the direction from the cooling cavity to the outside.

7. The temperature measuring device according to claim 6, characterized in that The one-way sealing member is a plug, the plug is at least partially inserted into the liquid outlet to seal the liquid outlet, and the plug is connected to the liquid outlet by being pulled out towards the side away from the cooling cavity.

8. The temperature measuring device according to claim 6, characterized in that The temperature measuring device further comprises a liquid outlet valve acting on the liquid outlet pipe or the liquid outlet, and the liquid outlet valve is used to control the opening and closing of the cooling liquid flowing from the cooling cavity to the external cooling liquid source.

9. The temperature measuring device according to claim 8, characterized in that The opening and closing of the liquid outlet valve is controlled by the temperature detected by the temperature measuring probe.

10. A hob, characterized in that The temperature measuring device comprises a temperature measuring device as claimed in any one of claims 1-9, further comprising a pot arranged above and below, and a burner, the burner is an annular structure with an inner cavity, the temperature measuring probe is located below the pot, and the burner is located at the outer periphery of the temperature measuring probe.

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