Temperature detection device for food materials

Abstract

A temperature detection device (1) comprises a shell (10) and a plurality of food material temperature detection units (30) arranged on the shell (10). Wherein the extension section (110) of the shell (10) is provided with a first longitudinal part (111) and a second longitudinal part (112) which are divided by taking a longitudinal reference plane passing through the center line of the extension section (110) as a boundary. The first longitudinal part (111) and the second longitudinal part (112) are respectively and correspondingly provided with at least one first temperature detection unit (310) so as to respectively collect temperature information of areas corresponding to the first longitudinal part (111) and the second longitudinal part (112). When the temperature detection device (1) is inserted into a food material, the first longitudinal part (111) and the second longitudinal part (112) face different areas in the food material respectively, and the first temperature detection units (310) corresponding to the first longitudinal part (111) and the second longitudinal part (112) can detect the temperatures of the different areas, so that the temperature information of the different areas is obtained. Therefore, the detection of the lowest temperature in the food material is improved.

Description

Temperature detection device for food Technical Field

[0001] The present invention relates to the field of food cooking, and in particular to a temperature detection device for detecting the temperature of food. Background Art

[0002] With the advancement of technology and the increasing demand for taste and nutrition of food, people expect to more accurately control the temperature elements in the cooking process, such as more accurately controlling the temperature of food and the temperature of water used to heat the food. Therefore, a temperature detection device used in food cooking came into being.

[0003] In meat or other similar ingredients, there is often a large difference between the surface temperature and the internal temperature, especially in the center of the ingredient, which is usually the lowest temperature. In order to detect the temperature near the center of the ingredient, the temperature detection device is usually designed to be insertable into the ingredient, such as a needle-shaped structure, so that it can be inserted into the interior of the ingredient to obtain the temperature of the interior of the ingredient (such as the center area). However, due to the irregular shape of food, and the fact that users cannot accurately grasp the insertion position of the temperature detection device when measuring the temperature using existing temperature detection devices, that is, they cannot accurately insert the temperature detection device into the center area of ​​the ingredient, so it is often difficult to obtain the lowest temperature in the center area of ​​the ingredient.

[0004] To improve the accuracy of detecting the internal temperature of food, some temperature detection devices incorporate multiple temperature sensors arranged longitudinally along a needle-like structure to increase the number of temperature detection points on the temperature detection device. The lowest temperature inside the food can then be determined based on the temperature information collected by these temperature sensors. Because the internal temperature of food can vary greatly, even adjacent areas within the food can experience significant temperature differences. Existing temperature detection devices have flawed arrangement of temperature sensors, resulting in a significant difference between the lowest temperature detected and the lowest temperature inside the food, making them inaccurate. Technical issues

[0005] The present invention mainly provides a temperature detection device for food, to demonstrate a new structure for detecting the temperature inside food. Technical Solutions

[0006] Based on the above objectives, an embodiment of the present application provides a temperature detection device for food, comprising:

[0007] A housing, the housing including a detection portion for contacting food, the housing forming a mounting cavity, at least a portion of the mounting cavity being located within the detection portion; the detection portion being an elongated strip structure including a front end portion and an extension portion connected to a rear side of the front end portion;

[0008] A control circuit board is arranged in the mounting cavity;

[0009] and a plurality of food temperature detection units, each of which is disposed in the housing and has a detection end for collecting temperature information, at least some of which are first temperature detection units, which are disposed in the extension section; the first temperature detection units are electrically connected to the control circuit board to transmit signals detected by the first temperature detection units to the control circuit board;

[0010] In which, the extension section has a first longitudinal part and a second longitudinal part divided by a longitudinal reference plane passing through its center line, and the first longitudinal part and the second longitudinal part are respectively provided with at least one first temperature detection unit to respectively collect temperature information of the areas corresponding to the first longitudinal part and the second longitudinal part.

[0011] In one embodiment, the control circuit board is provided along the longitudinal extension of the detection portion, the longitudinal reference plane is parallel to or coincides with the control circuit board, and the control circuit board has a control circuit electrically connected to the food temperature detection unit.

[0012] In one embodiment, the control circuit board has a first surface and a second surface arranged opposite to each other, the first surface and / or the second surface are provided with electronic components of the control circuit, and the longitudinal reference plane is parallel to or coincides with the first surface or the second surface.

[0013] In one embodiment, on the cross-section of the detection portion, the projection of a portion of the detection end of the first temperature detection unit is located within the projection range of the space formed by extending from the first surface in a direction away from the second surface, and the projection of a portion of the detection end of the first temperature detection unit is located within the projection range of the space formed by extending from the second surface in a direction away from the first surface.

[0014] In one embodiment, a portion of the first temperature detection units is fixedly installed on the first surface, and a portion of the first temperature detection units is fixedly installed on the second surface.

[0015] In one embodiment, there are at least two first temperature detection units, which are arranged along the longitudinal direction of the extension section, and at least two of the first temperature detection units are located at different positions in the longitudinal direction.

[0016] In one embodiment, there are at least two first temperature detection units for detecting temperature information of the area corresponding to the first longitudinal part, and / or there are at least two first temperature detection units for detecting temperature information of the area corresponding to the second longitudinal part, and at least some of the first temperature detection units have projections on the cross section of the extension section that are completely staggered or not completely overlapping with each other.

[0017] In one embodiment, on the cross section of the extension section, projections of at least a portion of the first temperature detection unit are arranged around the center of the cross section.

[0018] In one embodiment, on the cross section of the extension section, projections of two adjacent first temperature detection units form a central angle with the center of the cross section, and the central angle is 85°-95°.

[0019] In one embodiment, on the cross section of the extension section, projections of multiple first temperature detection units are arranged around the center of the cross section, and among the multiple first temperature detection units, the central angle formed by the projections of two adjacent first temperature detection units and the center of the cross section is equal.

[0020] In one embodiment, there are at least four first temperature detection units, wherein, on the cross section of the extension section, the projections of four first temperature detection units are arranged around the center of the cross section, and among the four first temperature detection units, the projections of two adjacent first temperature detection units form a central angle with the center of the cross section, and the central angle is 90°.

[0021] In one embodiment, at least part of the food temperature detection units are second temperature detection units, and the second temperature detection units are provided at the front end portion to detect the temperature of a corresponding area of ​​the front end portion.

[0022] In one embodiment, on the cross section of the extension section, the projection of the second temperature detection unit coincides with the center of the cross section.

[0023] In one embodiment, at least one food temperature detection unit is separately arranged in the accommodating cavity, and the cavity wall of the accommodating cavity isolates the food temperature detection unit in the accommodating cavity from other food temperature detection units, and forms a thermal isolation structure for the food temperature detection unit in the longitudinal direction of the detection part to reduce the heat from other areas transferred to the food temperature detection unit located in the accommodating cavity along the longitudinal direction of the detection part.

[0024] In one embodiment, except for the area facing the detection portion, the cavity walls of other areas of the accommodating cavity form a thermal isolation structure for the food temperature detection unit therein.

[0025] In one embodiment, a front end mounting seat is further included, which is fixed in the detection part, and at least a portion of it is located in the front end portion. At least one front end accommodating cavity is formed between the front end of the front end mounting seat and the front end portion, and a second temperature detection unit is arranged in each of the front end accommodating cavities.

[0026] In one embodiment, at least one side accommodating cavity is formed between the peripheral side of the front end mounting seat and the front end portion, and one first temperature detection unit is disposed in each of the side accommodating cavities.

[0027] In one embodiment, on the cross section of the extension section, the projection of at least one first temperature detection unit located in the side accommodating cavity and the projection of at least one second temperature detection unit located in the front accommodating cavity completely overlap, partially overlap or completely staggered.

[0028] In one embodiment, the front end mounting seat forms an elastic support for the second temperature detection unit or a portion of the first temperature detection unit, so as to form a heat conduction structure between the second temperature detection unit or a portion of the first temperature detection unit and the detection portion.

[0029] In one embodiment, the front end of the front end mounting seat has a first mounting groove, the second temperature detection unit is fixed in the first mounting groove, and the front end accommodating cavity is formed between the first mounting groove and the front end portion.

[0030] In one embodiment, the front end mounting seat has at least one second mounting groove on its circumferential side, the first temperature detection unit is fixed in the second mounting groove, and the side accommodating cavity is formed between the second mounting groove and the extension section.

[0031] In one embodiment, at least one intermediate mounting seat is further included, which is fixed in the extension section. The intermediate mounting seat and the corresponding side wall on the extension portion form a peripheral accommodating cavity, and a first temperature detection unit is arranged in each peripheral accommodating cavity.

[0032] In one embodiment, the intermediate mounting seat forms an elastic support for the first temperature detection unit, so as to form a heat conduction structure between the first temperature detection unit and the extension section.

[0033] In one embodiment, the intermediate mounting seat has a third mounting groove, at least a portion of the first temperature detection unit is fixed in the third mounting groove, and the peripheral accommodating cavity is formed between the third mounting groove and the extension section.

[0034] In one embodiment, there are at least two intermediate mounting seats, which are arranged along the longitudinal direction of the extension section, with gaps between adjacent intermediate mounting seats; and the control circuit board passes through the intermediate mounting seats along the longitudinal direction of the extension section.

[0035] In one embodiment, at least the portion of the front mounting seat and / or the middle mounting seat used to form the corresponding accommodating cavity is made of a heat-insulating material.

[0036] In one embodiment, the thermal insulation material is elastic and high-temperature resistant silicone, rubber or resin.

[0037] In one embodiment, at least a portion of the food temperature detection unit forms an elastic support structure, so that at least a portion of the food temperature detection unit and the extension section form a heat conduction structure.

[0038] In one embodiment, in the heat conduction structure, the food temperature detection unit directly abuts against the inner wall of the detection part, or a heat conduction material is provided between the food temperature detection unit and the inner wall of the detection part, and the food temperature detection unit, the heat conduction material and the detection part abut against each other.

[0039] In one embodiment, in the elastic supporting structure, the food temperature detection unit is driven by the elastic force of the elastic member to abut against the heat conductive material or the detection portion.

[0040] In one embodiment, the heat conductive material is thermal grease, thermal silica gel, thermal rubber, thermal silicone, thermal adhesive, thermal paste or thermal film.

[0041] In one embodiment, at least a portion of the food temperature detection unit is fixed on the control circuit board, and at least a portion of the food temperature detection unit is separated from the control circuit board and forms a heat conduction structure with the inner wall of the extension section.

[0042] In one embodiment, the extension section has a safety zone mark, the area from the front end of the front end portion to the safety zone mark is the safety zone, and the food temperature detection unit is arranged within the range of the safety zone.

[0043] In one embodiment, a power supply battery is further included, and the power supply battery is arranged in the detection part, and the power supply battery is located within the range of the safety zone.

[0044] In one embodiment, the control circuit board is located within the safety zone, and in the longitudinal direction of the detection portion, the power supply battery is located at the front end of the control circuit board.

[0045] In one embodiment, an ambient temperature detection unit is further included, the shell includes a handle portion, the handle portion is connected to the rear end of the detection portion, the ambient temperature detection unit is arranged in the handle portion and is located outside the safety zone, the ambient temperature detection unit is welded to the control circuit board, and the welding point is located within the range of the safety zone.

[0046] In one embodiment, an antenna is further included. The antenna is arranged on the handle portion. The antenna is a spiral structure. The ambient temperature detection unit is arranged in a hollow area of ​​the spiral structure.

[0047] In one embodiment, an antenna is further included, which is arranged on the handle portion. The antenna is a board structure, and a barrier is provided between the cable of the ambient temperature detection unit and the board structure so that there is a gap between the cable and the board structure.

[0048] In one embodiment, the handle portion has an exposed first conductive member, which is electrically connected to the control circuit board to serve as the first electrode of the control circuit board; a second conductive member is provided in the detection portion, and the detection portion is a conductive material. The second conductive member electrically connects the detection portion to the control circuit board so that the detection portion can serve as the second electrode of the control circuit board, and the first electrode and the second electrode are respectively one of the positive electrode and the negative electrode.

[0049] In one embodiment, the second conductive member is a conductive ejector pin or a metal spring.

[0050] In one embodiment, the handle portion is plugged into the detection portion, an adhesive medium is filled in the plugging gap of the plugging fit, and a rubber-supporting isolation piece is provided in the plugging gap or the detection portion to prevent the adhesive medium from flowing into the interior of the detection portion.

[0051] In one embodiment, there are at least two food temperature detection units. In the same judgment cycle, the control circuit board uses the lowest temperature measured by the food temperature detection unit as the detection temperature of the food within the judgment cycle; or, the control circuit board uses the average temperature measured by the food temperature detection unit as the detection temperature of the food within the judgment cycle.

[0052] Based on the above objectives, an embodiment of the present application provides a temperature detection device for food, comprising:

[0053] a housing, the housing comprising a detection portion for contacting food, the housing forming a mounting cavity, at least a portion of the mounting cavity being located at the detection portion;

[0054] A control circuit board is arranged in the mounting cavity;

[0055] and a plurality of food temperature detection units, wherein the food temperature detection units are provided in the housing, and the first temperature detection unit is electrically connected to the control circuit board to transmit a signal detected by the first temperature detection unit to the control circuit board;

[0056] Wherein, at least a part of the food temperature detection unit is separated from the control circuit board and forms a heat conduction structure with the inner wall of the detection part. Beneficial effects

[0057] According to the temperature detection device of the above embodiment, it includes a shell and a plurality of food temperature detection units arranged in the shell. The extension section of the shell has a first longitudinal section and a second longitudinal section divided by a longitudinal reference plane passing through its center line. The first longitudinal section and the second longitudinal section are respectively provided with at least one first temperature detection unit to respectively collect temperature information of the areas corresponding to the first longitudinal section and the second longitudinal section. When the temperature detection device is inserted into the interior of the food, the first longitudinal section and the second longitudinal section are respectively oriented towards different areas inside the food, and the first temperature detection units corresponding to the first longitudinal section and the second longitudinal section can perform temperature detection on the different areas, thereby obtaining temperature information of different areas to improve the detection of the lowest temperature inside the food. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] FIG1 is a schematic diagram of a temperature detection device inserted into food in one embodiment of the present application;

[0059] FIG2 is a schematic diagram of a first longitudinal portion and a second longitudinal portion of a temperature detection device in one embodiment of the present application;

[0060] FIG3 is a schematic diagram showing the distribution positions of a control circuit board and a first temperature detection unit on a cross section of a detection portion in one embodiment of the present application;

[0061] FIG4 is a longitudinal cross-sectional schematic diagram of a temperature detection device according to an embodiment of the present application;

[0062] FIG5 is a longitudinal cross-sectional schematic diagram of a temperature detection device in another embodiment of the present application;

[0063] FIG6 is a schematic diagram of a first surface and a second surface of a control circuit board in a cross section of a detection portion in one embodiment of the present application;

[0064] FIG7 is a schematic diagram showing a cross section of a detection portion in one embodiment of the present application, showing first temperature detection units fixed to the first and second surfaces of a control circuit board, respectively;

[0065] FIG8 is an exploded view of the embodiment shown in FIG4 ;

[0066] 9 and 10 are schematic diagrams of a portion of the structure of the embodiment shown in FIG. 4 at different viewing angles;

[0067] FIG11 is a schematic diagram showing a first temperature detection unit rotationally symmetrical about the center of a cross section of a detection portion in one embodiment of the present application;

[0068] FIG12 is an exploded view of the embodiment shown in FIG5 ;

[0069] FIG13 is a schematic diagram of the distribution of the first temperature detection unit on the cross section of the detection portion in one embodiment of the present application. Modes for Carrying Out the Invention

[0070] The present invention will be further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions, and for those skilled in the art, it is not necessary to describe these related operations in detail. They will fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0071] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.

[0072] Component numbers used herein, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0073] This application provides a temperature detection device for food. The device can be inserted into the food during cooking to detect the internal temperature, specifically to accurately determine the lowest internal temperature. The food can be in any cooking state, including but not limited to steaming, boiling, baking, roasting, frying, deep-frying, or any other heat-treated method. Generally, the core temperature of the food is considered the lowest internal temperature. Because the temperature detection device can measure multiple temperatures at multiple locations within the food, its likelihood of reaching the actual center of the food is significantly increased compared to measuring only a single location or temperature. The lowest valid temperature among the multiple temperatures is likely to be the actual core temperature of the food, or close to it. Therefore, the temperature detection device has high temperature measurement accuracy and can better determine the doneness of the food. Of course, the temperature detection device can be placed directly in the measured environment for temperature measurement. Measured environments include but are not limited to cooking environments.

[0074] 1-10 , in some embodiments, the temperature detection device 1 includes a housing 10, a control circuit board 20, and a plurality of food temperature detection units 30. Of course, if necessary, the temperature detection device 1 may also include other related components, which may refer to the temperature detection device 1 in the prior art.

[0075] The housing 10 is used to protect and house the components that implement the functions of the temperature detection device 1 (e.g., the food temperature detection unit 30 and / or other electronic components). In some embodiments, the housing 10 may have a cavity within it, and the functional components of the temperature detection device 1 may be disposed within the cavity within the housing 10. In some embodiments, the housing 10 may have a single cavity within it, and the functional components of the temperature detection device 1 may be disposed within the cavity; or the housing 10 may have multiple cavities within it, each of which may house one or more functional components of the temperature detection device 1. The one or more cavities may be of any shape, as long as they do not interfere with the installation of the functional components of the temperature detection device 1.

[0076] In some embodiments, the housing 10 may enclose the functional components of the temperature detection device 1. That is, the housing 10 may be located at the outermost layer of the temperature detection device 1, blocking the outside world from contacting the components inside the housing 10. In some embodiments, the housing 10 may not completely enclose the functional components of the temperature detection device 1. For example, part of the food temperature detection unit 30 may be located outside the housing 10 to facilitate temperature measurement.

[0077] Please refer to Figures 1-10. In some embodiments, the shell 10 includes a detection portion 11 for contacting food. The detection portion 11 is an elongated structure, which includes a front end portion 120 and an extension section 110 connected to the rear side of the front end portion 120. The extension direction of the elongated structure is the longitudinal direction of the detection portion 11 (the up and down direction as shown in Figure 2). The detection portion 11 forms a mounting cavity, and at least a part of the mounting cavity is located in the detection portion 11. In some embodiments, the material of the detection portion 11 can have a certain hardness to maintain the shape of the detection portion 11 and play a certain role in protecting the internal functional components. The detection portion 11 can generally be made of a thermally conductive material, such as metal, thermally conductive ceramics, etc. In some embodiments, the metal material can be a metal material such as copper, nickel, or an alloy material such as stainless steel.

[0078] In some embodiments, one end of the detection portion 11 can be a closed structure with a sharp front end 120 to facilitate insertion of the temperature detection device 1 into the object being measured for temperature measurement. In some embodiments, the detection portion 11 can be formed into an elongated strip-shaped structure, such as a tubular structure. In some embodiments, the diameter of the front end of the elongated strip of detection portion 11 gradually decreases until it approaches zero, forming a closed, sharp front end 120. In some embodiments, the detection portion 11 can be a hollow tubular structure with one end closed, and the functional components of the temperature detection device 1 can be installed within this hollow tubular structure. In some embodiments, the cross-section of the hollow tubular detection portion 11 (i.e., a cross-section perpendicular to the longitudinal direction of the detection portion 11) can be circular, elliptical, triangular, rectangular, polygonal, or a special shape. In some embodiments, to facilitate handheld temperature measurement using the temperature detection device 1, a handle 12 for easy gripping can be provided at one end of the detection portion 11. In some embodiments, the handle 12 can be located away from the closed front end 120 of the detection portion 11.

[0079] The control circuit board 20 is disposed within the mounting cavity. The control circuit board 20 may comprise, but is not limited to, one or more control circuit boards 20 having control circuitry. The control circuit board 20 controls the temperature detection device 1. This control includes, but is not limited to, receiving temperature information acquired by the food temperature detection unit 30 and controlling the power on and off of the temperature detection device 1. In some embodiments, this control may also include wired or wireless communication between the temperature detection device 1 and other devices.

[0080] The food temperature detection unit 30 is disposed in the housing 10 and has detection terminals (such as 311 and 312 in Figures 8 and 12) for collecting temperature information. Part or all of the temperature detection units are first temperature detection units 310, which are disposed in the extension section 110. In some embodiments, the extension section 110 can have any shape. For example, the outer contour of the extension section 110 can include, but is not limited to, a rectangular parallelepiped, a cylinder, a frustum, a prism, or other irregular shapes. In some embodiments, the extension section 110 can have any size depending on the usage requirements.

[0081] The first temperature detection unit 310 is electrically connected to the control circuit board 20 to transmit the signal detected by the first temperature detection unit 310 to the control circuit board 20. In some embodiments, the food temperature detection unit 30 and the detection unit 11 can be connected and / or contacted by any physical means. The physical means described in this specification include but are not limited to relative connection methods such as threaded or bolted connection, riveting, interference fit, snap connection, bonding, injection molding, welding, magnetic attraction, etc., or any combination thereof.

[0082] With reference to Figures 2 and 3 , in some embodiments, the extension section 110 has a first longitudinal portion 111 and a second longitudinal portion 112 divided by a longitudinal reference plane passing through its centerline. The longitudinal reference plane can be any plane passing through the centerline of the extension section 110, such as A1, A2, A3, or A4 shown in Figures 2 and 3 . The longitudinal reference plane is a virtual reference plane, and in some embodiments, the longitudinal reference plane is not visible from the outside. In other embodiments, the position of the longitudinal reference plane can also be indicated on the outer surface of the housing 10 by an indicator line or other form.

[0083] In some embodiments, at least one first temperature detection unit 310 is respectively provided on the first longitudinal portion 111 and the second longitudinal portion 112 to respectively collect temperature information of the areas corresponding to the first longitudinal portion 111 and the second longitudinal portion 112. When the temperature detection device 1 is inserted into the interior of food, the first longitudinal portion 111 and the second longitudinal portion 112 are respectively oriented toward different areas within the food. The first temperature detection units 310 corresponding to the first longitudinal portion 111 and the second longitudinal portion 112 can perform temperature detection on the different areas, thereby obtaining temperature information of the different areas, thereby improving the detection of the lowest temperature within the food.

[0084] The first longitudinal portion 111 and the second longitudinal portion 112 are respectively provided with at least one first temperature detection unit 310, which can make the temperature detection area of ​​the first temperature detection unit 310 more perfectly distributed in three-dimensional space. Especially when the number of first temperature detection units 310 distributed on the first longitudinal portion 111 and the second longitudinal portion 112 is greater, the temperature detection areas of the first temperature detection units 310 can be more evenly distributed in various areas around the extension section 110, thereby detecting the temperature of more areas in the food.

[0085] Further, referring to Figure 3 , in some embodiments, a control circuit board 20 is disposed along the longitudinal direction of the detection portion 11, with a longitudinal reference plane A2 being parallel to or coinciding with the control circuit board 20. The control circuit board 20 includes a control circuit electrically connected to the food temperature detection unit 30. The control circuit board 20 typically comprises a flat substrate. Parallel to or coinciding with the longitudinal reference plane A2 means that the longitudinal reference plane A2 is parallel to or coinciding with a plane on one side of the substrate. Typically, the control circuit board 20 is a PCB. However, in other embodiments, the control circuit board 20 may also be an FPCB (flexible printed circuit board), and the substrate may also be a flexible substrate.

[0086] In some other embodiments, the longitudinal reference plane may also be perpendicular to or intersect with the plane where the control circuit board 20 is located.

[0087] Further, referring to Figures 3 and 6 , in some embodiments, the control circuit board 20 has a first surface 21 and a second surface 22 disposed opposite to each other. The first surface 21 and / or the second surface 22 are provided with electronic components of the control circuit. The longitudinal reference plane is parallel to or coincides with the first surface 21 or the second surface 22. In some embodiments, the first surface 21 and the second surface 22 may be two opposing surfaces on the substrate.

[0088] Further, referring to FIG. 6 , in some embodiments, on a cross-section of the detection portion 11, the projection of a portion of the detection end of the first temperature detection unit 310 is located within the projection range of space B1 extending from the first surface 21 in a direction away from the second surface 22, and the projection of a portion of the detection end of the first temperature detection unit 310 is located within the projection range of space B2 extending from the second surface 22 in a direction away from the first surface 21. In some embodiments, spaces B1 and B2 are respectively the spaces enclosed by the first surface 21 and the second surface 22 and the corresponding housing 10 (e.g., the detection portion 110). In some embodiments, the projection of the detection end of the first temperature detection unit 310 being located within the projection range of space B1 or space B2 also includes the case where the detection end of the first temperature detection unit 310 is embedded in the housing 10 (e.g., the detection portion 110).

[0089] 7 and 12 , in some embodiments, a portion of the first temperature detection units 310 are fixedly mounted on the first surface 21, and a portion of the first temperature detection units 310 are fixedly mounted on the second surface 22. Of course, the first temperature detection units 310 may be entirely distributed on both the first surface 21 and the second surface 22 of the control circuit board 20, or a portion of the first temperature detection units 310 may be distributed outside the control circuit board 20. For example, as shown in FIG7 , a portion of the first temperature detection units 310 may be disposed on the housing 10 (e.g., the detection portion 110).

[0090] Referring to Figures 4 and 5 , in some embodiments, there are at least two first temperature detection units 310 arranged longitudinally along the extension section 110, with at least two first temperature detection units 310 located at different longitudinal positions. This allows the temperature of the food to be detected from different longitudinal positions along the extension section 110, increasing the probability of detecting the lowest temperature of the food. In this embodiment, the first temperature detection units 310 are distributed at different positions longitudinally along the extension section 110 and also in different transverse regions (e.g., distributed transversely across different first longitudinal sections 111 and second longitudinal sections 112). This improves the uniformity of the distribution of the first temperature detection units 310 throughout three-dimensional space, thereby more evenly detecting the temperature of the food over a wider range, thereby obtaining a detection value closer to the actual temperature of the center of the food.

[0091] Referring to FIG. 3 , in some embodiments, there are at least two first temperature detection units 310 for detecting temperature information in an area corresponding to the first longitudinal portion 111, and / or at least two first temperature detection units 310 for detecting temperature information in an area corresponding to the second longitudinal portion 112. The projections of at least some of the first temperature detection units 310 on the cross-section of the extension section 110 are completely staggered or partially overlapped, so that the temperature detection areas of the first temperature detection units 310 are more evenly distributed around the perimeter of the extension section 110, thereby detecting the temperature of the food from various areas around the perimeter of the extension section 110.

[0092] Further, referring to FIG. 11 , in some embodiments, on the cross section of the extension section 110 , the projection of at least a portion of the first temperature detection unit 310 is disposed around the center of the cross section.

[0093] Further, please continue to refer to Figure 11. In some embodiments, on the cross section of the extension section 110, the projections of two adjacent first temperature detection units 310 form a central angle θ with the center of the cross section. The central angle θ is 5°-180°, for example, it can be 50°-150°, and a better distribution can be 85°-95°.

[0094] Referring to Figure 11 , in some embodiments, on a cross-section of the extension section 110, the projections of multiple first temperature detection units 310 are arranged around the center of the cross-section. Furthermore, the central angle θ formed between the projections of two adjacent first temperature detection units 310 and the center of the cross-section is equal. In this embodiment, the projections of the multiple first temperature detection units 310 are rotationally symmetrically distributed around the center of the cross-section, ensuring that the first temperature detection units 310 form more uniform temperature measurement points around the circumference of the detection portion 11.

[0095] Continuing with FIG. 11 , in some embodiments, there are at least four first temperature detection units 310 . In the cross section of the extension section 110 , the projections of the four first temperature detection units 310 are arranged around the center of the cross section. Furthermore, the projections of two adjacent first temperature detection units 310 form a central angle θ with the center of the cross section, and the central angle θ is 90°. Of course, when more first temperature detection units 310 are arranged around the center of the cross section, the central angle θ may also be other angles.

[0096] In some embodiments, all of the food temperature detection units 30 for detecting the temperature of the food may be first temperature detection units 310 , that is, all of the food temperature detection units 30 may be distributed on the extension section 110 .

[0097] In other embodiments, the food temperature detection unit 30 may also include additional food temperature detection units disposed outside of the extension section 110. Referring to Figures 4, 5, and 8-13, in some embodiments, at least a portion of the food temperature detection units 30 are second temperature detection units 320. The second temperature detection units 320 are disposed at the front end portion 120 and are configured to detect the temperature of an area corresponding to the front end portion 120. The front end portion 120 is the frontmost portion of the temperature detection device 1 when inserted into the food 2. The placement of the second temperature detection units 320 at the front end portion 120 increases the diversity of the temperature detection values ​​within the food 2, thereby improving the temperature detection accuracy of the entire device.

[0098] Referring to Figures 4, 5, 11, and 13, in some embodiments, the projection of the second temperature detection unit 320 on the cross section of the extension section 110 coincides with the center of the cross section. Of course, in other embodiments, the projection of the second temperature detection unit 320 may be partially offset (also referred to as partially overlapping) or completely offset from the center of the corresponding cross section. Partial offset, as used herein, means that only a portion of the two objects overlap.

[0099] On the other hand, referring to Figures 4 and 5 , in some embodiments, at least one food temperature detection unit 30 is separately disposed within the accommodating cavity (e.g., 301, 302, 303, 304, etc. in Figures 4 and 5 ). The cavity walls isolate the food temperature detection unit 30 within the accommodating cavity from the other food temperature detection units 30. Furthermore, a thermal isolation structure is formed for the food temperature detection unit 30 in the longitudinal direction of the detection portion 11. This reduces heat transfer from other areas along the longitudinal direction of the detection portion 11 to the food temperature detection unit 30 within the accommodating cavity, thereby preventing it from affecting the detection results of the food temperature detection unit 30 within the accommodating cavity and thereby improving detection accuracy. This thermal isolation structure can be implemented using insulating materials or structures. For example, in some embodiments, the insulating material is elastic and high-temperature-resistant silicone, rubber, or resin. In some embodiments, a layer of thermally conductive silicone grease can be applied between the detection end of the food temperature detection unit 30 and the inner wall of the detection portion 11 to further increase the contact area between the detection end and the inner wall of the detection portion 11, thereby improving temperature detection accuracy. In some embodiments, the thermal insulation structure may include but is not limited to a vacuum insulation chamber, etc.

[0100] Furthermore, in some embodiments, each food temperature detection unit 30 is separately disposed in a respective accommodating cavity, so that each food temperature detection unit 30 primarily detects the temperature of the region corresponding to the food 2, thereby preventing heat from other regions of the food 2 from being transferred to the region where the food temperature detection unit 30 is located and affecting the detection results of the food temperature detection unit 30. In other embodiments, a portion of the food temperature detection units 30 may be separately disposed in a respective accommodating cavity. For example, when two or more food temperature detection units 30 are closely distributed, the two or more food temperature detection units 30 may be placed in the same accommodating cavity.

[0101] Furthermore, to better isolate the food temperature detection unit 30 within the accommodating cavity from the effects of heat from other areas, as shown in Figures 4 and 5 , in some embodiments, the walls of the accommodating cavities 301, 302, 303, and 304, except for the area facing the detection portion 11, form a thermal isolation structure for the food temperature detection unit 30 therein. The area of ​​the accommodating cavities 301, 302, 303, and 304, except for the area facing the detection portion 11, refers to the side of the accommodating cavities 301, 302, 303, and 304 with the detection end of the food temperature detection unit 30 facing the inner wall of the detection portion 11. In this case, the thermal isolation structure not only provides longitudinal thermal isolation for the food temperature detection unit 30, but also provides thermal isolation for the food temperature detection unit 30 in all other lateral directions, except for the direction in which the detection end of the food temperature detection unit 30 faces the inner wall of the detection portion 11. The purpose of not providing thermal isolation for the direction in which the detection end of the food temperature detection unit 30 faces the inner wall of the detection portion 11 is to ensure that the food temperature can be more quickly transmitted to the food temperature detection unit 30 through the area of ​​the accommodating cavity facing the detection portion 11, thereby enabling temperature measurement.

[0102] Furthermore, the food temperature detection unit 30 can be installed on the housing 10 in any feasible manner. Any feasible manner means that as long as a certain installation method does not constitute a contradiction with the solution shown in any of the above embodiments, the installation method can be applied to the corresponding embodiment.

[0103] Referring to Figures 4, 5, 8-10, and 12, some embodiments further include a front end mounting seat 40, which is fixed within the detection portion 11, and at least a portion of which is located within the front end portion 120. At least one front end accommodating cavity 304 (the front end accommodating cavity is a type of the aforementioned accommodating cavity) is formed between the front end of the front end mounting seat 40 and the front end portion 120. A second temperature detection unit 320 is disposed within each front end accommodating cavity 304. The front end accommodating cavity 304 can form a thermal isolation structure for the second temperature detection unit 320 therein from at least one direction, for example, forming a thermal isolation structure for the second temperature detection unit 320 therein in one or more directions other than the side where the detection end of the second temperature detection unit 320 faces the detection portion 11.

[0104] The front mounting seat 40 can be fixed to the housing 10 by, but not limited to, bonding, clamping, welding, screwing, or other fixing members (such as screws, etc.).

[0105] Further, please refer to Figures 4, 5, 8-10 and 12. In some embodiments, the front end of the front end mounting seat 40 has a first mounting groove 410, and part of the second temperature detection unit 320 is fixed in the first mounting groove 410, and a front end accommodating cavity 304 is formed between the first mounting groove 410 and the front end portion 120.

[0106] Further, referring to Figures 4, 5, 8-10, and 12, some embodiments illustrate a method for installing the first temperature detection unit 310. At least one lateral accommodating cavity 303 (a type of the aforementioned accommodating cavity) is formed between the circumference of the front mounting base 40 and the front end portion 120. A first temperature detection unit 310 is disposed within each lateral accommodating cavity 303. In this embodiment, at least a portion of the first temperature detection unit 310 and the second temperature detection unit 320 can be installed through the front mounting base 40, resulting in a more compact installation structure, which helps reduce the outer diameter of the entire detection portion 11 and facilitates insertion of the device into the food 2.

[0107] In some embodiments, in a cross-section of the extension section 110, the projection of at least one first temperature detection unit 310 located in the side accommodating cavity 303 completely overlaps, partially overlaps, or completely staggers with the projection of at least one second temperature detection unit 320 located in the front accommodating cavity 304. When the projection of at least one first temperature detection unit 310 located in the side accommodating cavity 303 partially overlaps or completely staggers with the projection of at least one second temperature detection unit 320 located in the front accommodating cavity 304, this helps to expand the detection range of the first temperature detection unit 310 and the second temperature detection unit 320 corresponding to the front end of the detection portion 11, and is more conducive to obtaining temperature information close to the lowest temperature inside the food.

[0108] Further, please refer to Figures 4, 5, 8-10 and 12. In some embodiments, the peripheral side of the front end mounting seat 40 has at least one second mounting groove 420, and part of the first temperature detection unit 310 is fixed in the second mounting groove 420, and a side accommodating cavity 303 is formed between the second mounting groove 420 and the extension section 110.

[0109] Of course, realizing the first temperature detection unit 310 and the second temperature detection unit 320 through the matching structure of the front mounting seat 40 and the shell 10 (such as the detection part 11) is only an example of the present application. In other embodiments, the first temperature detection unit 310 and / or the second temperature detection unit 320 can also be installed on the shell (such as the detection part 11) through other structures.

[0110] Further, please refer to Figures 4 and 8-10. In some embodiments, at least one intermediate mounting seat 50 is also included. The intermediate mounting seat 50 is fixed in the extension section 110. The intermediate mounting seat 50 and the corresponding side walls on the extension portion form peripheral accommodating cavities 301 and 302 (the peripheral accommodating cavities are one type of the aforementioned accommodating cavities), and a first temperature detection unit 310 is set in each peripheral accommodating cavity 301 or 302.

[0111] The peripheral accommodating cavities 301 and 302 can form a thermal isolation structure for the first temperature detection unit 310 therein at least from one direction, for example, can form a thermal isolation structure for the first temperature detection unit 310 therein from one or more directions other than the detection end of the first temperature detection unit 310 toward the side of the detection part 11.

[0112] The intermediate mounting seat 50 can be fixed to the housing 10 by, but not limited to, bonding, clamping, welding, screwing, or other fixing members (such as screws, etc.).

[0113] Please refer to Figures 4 and 8-10. In some embodiments, the peripheral side of the intermediate mounting seat 50 can directly or indirectly abut against the wall of the detection portion 11, thereby providing support for the detection portion 11. This is beneficial for improving the strength of the detection portion 11 without adding other structures, thereby ensuring that the detection portion 11 can be more easily inserted into the food 2 and preventing the detection portion 11 from being bent or deformed due to pressure during the insertion process.

[0114] Further, referring to Figures 4 and 8-10, in some embodiments, the intermediate mounting seat 50 has a third mounting groove 510, and at least a portion of the first temperature detection unit 310 is fixed in the third mounting groove 510. The peripheral accommodating cavities 301 and 302 are formed between the third mounting groove 510 and the extension section 110. In this structure, when the intermediate mounting seat 50 is installed in the extension section 110, the extension section 110 or other structures installed on the extension section 110 can be enclosed with the third mounting groove 510 to form the peripheral accommodating cavities 301 and 302. The entire structure is simple and easy to install. At the same time, by providing different numbers of third mounting grooves 510 on the intermediate mounting seat 50, one or more peripheral accommodating cavities can be formed.

[0115] Further, please refer to Figures 4 and 8-10. In some embodiments, there are at least two intermediate mounting seats 50, which are arranged along the longitudinal direction of the extension section 110. There is a gap between adjacent intermediate mounting seats 50, and the gap can be used to accommodate other related parts or components, such as the second conductive member 92 mentioned later. The control circuit board 20 passes through the intermediate mounting seat 50 along the longitudinal direction of the extension section 110. A notch for the control circuit board 20 to pass through can be provided on the intermediate mounting seat 50. When the control circuit board 20 is stuck on the intermediate mounting seat 50, the intermediate mounting seat 50 can also be used to fix the control circuit board 20, so that there is no need to set up a fixing structure for the control circuit board 20, or a part of the fixing structure of the control circuit board 20 is omitted, thereby further simplifying the control circuit board 20 and its fixing mechanism, so that the outer diameter of the entire detection part 11 can be made smaller.

[0116] Referring to FIG. 4 , in some embodiments, two intermediate mounting brackets 50 are provided, one at each longitudinal end of the control circuit board 20, to secure the control circuit board 20 from both longitudinal sides and prevent the control circuit board 20 from shaking and causing electrical connection failure. Of course, to further secure the control circuit board 20, additional fixing structures may be provided in addition to the intermediate mounting brackets 50 to secure the control circuit board 20, such as by welding, gluing, clamping, screwing, or securing the control circuit board 20 with a fixing member.

[0117] Of course, in some other embodiments, the number of the intermediate mounting seat 50 may be one or more.

[0118] In order to achieve better thermal insulation, in some embodiments, at least the portion of the front mounting seat 40 and / or the middle mounting seat 50 that forms the corresponding accommodating cavity is made of a thermal insulation material. In some embodiments, the thermal insulation material is high-temperature resistant silicone, rubber, or resin.

[0119] Of course, in other embodiments, no heat insulation structure may be provided around the food temperature detection unit 30 , and two or more food temperature detection units 30 may be exposed in the same cavity.

[0120] In addition to directly or indirectly abutting the food temperature detection unit 30 against the detection portion 11, in some embodiments, a hole can be drilled in the detection portion 11, the detection end of the food temperature detection unit 30 inserted into the hole, and the space between the food temperature detection unit 30 and the detection portion 11 filled with solder or adhesive. The detection portion 11 and the food temperature detection unit 30 are fixedly connected together through welding or bonding, and then polished to a smooth surface, thereby utilizing the detection end of the food temperature detection unit 30 to directly contact the food to detect temperature. Further processing and surface treatment can then be performed to ensure that the surface connecting the detection portion 11 and the food temperature detection unit 30 is intact and safe (safe and harmless can mean reaching food grade). In some embodiments, the food temperature detection unit 30 can also be directly abutted against the detection portion 11, and then cut or polished from the outside of the tip of the detection portion 11 until the food temperature detection unit 30 is exposed. This exposes the food temperature detection unit 30 directly at or near the tip of the detection portion 11, achieving rapid temperature measurement.

[0121] Furthermore, in some embodiments, in order to make the temperature detection device 1 as a whole lightweight and avoid too many food temperature detection units 30 being installed at a close distance and measuring the same temperature, the number of food temperature detection units 30 may be less than or equal to 15. In some embodiments, in order to balance the contradiction between obtaining multi-point temperature information and lightweight temperature detection device 1, the number of food temperature detection units 30 may be 3-15. In some embodiments, the number of food temperature detection units 30 may be 3-10. In some embodiments, the number of food temperature detection units 30 may be 4-8. In some embodiments, as shown in Figure 4, the number of food temperature detection units 30 may be 5. In some embodiments, as shown in Figure 5, the number of food temperature detection units 30 may be 4.

[0122] In some embodiments, the food temperature detection unit 30 may be a thermocouple (TC), a resistance temperature detector (RTD), a thermistor, or any combination thereof. In some embodiments, to speed temperature measurement, the food temperature detection unit 30 may be a thermocouple. A thermocouple consists of two conductors of different compositions connected at both ends to form a circuit. The end directly used for temperature measurement is the detection end, and the other end is the compensation end. In some embodiments, the food temperature detection unit 30 may be a negative temperature coefficient (NTC) thermistor. A thermistor consists of a thermal probe (detection end), leads, and a housing 10.

[0123] On the other hand, to improve the heat conduction effect between the food temperature detection unit 30 and the housing 10, in some embodiments, at least a portion of the food temperature detection unit 30 forms an elastic support structure, so that at least a portion of the food temperature detection unit 30 and the extension section 110 form a heat conduction structure. This elastic support structure can form a certain degree of buffering relationship between the food temperature detection unit 30 and the extension section 110. Even if the position of the food temperature detection unit 30 and the extension section 110 changes to a certain extent, such as due to collision, long-term use, improper assembly, etc., resulting in relative displacement between the food temperature detection unit 30 and the extension section 110, the elastic force of the elastic support structure can maintain stable heat conduction contact between the food temperature detection unit 30 and the extension section 110. Of course, this heat conduction contact between the food temperature detection unit 30 and the extension section 110 can be direct contact between the food temperature detection unit 30 and the extension section 110, or indirect contact between the food temperature detection unit 30 and the extension section 110 through other components or structures.

[0124] Specifically, in some embodiments, in the heat-conducting structure, the food temperature detection unit 30 directly abuts the inner wall of the detection portion 11, or a heat-conducting material is provided between the food temperature detection unit 30 and the inner wall of the detection portion 11, so that the food temperature detection unit 30, the heat-conducting material, and the detection portion 11 abut against each other. In some embodiments, the heat-conducting material in the heat-conducting structure can be a single type or comprised of two or more groups.

[0125] In some embodiments, the heat conductive material includes but is not limited to: thermal grease, thermal silica gel, thermal rubber, thermal silicone, thermal adhesive, thermal paste, thermal film, etc.

[0126] In some embodiments, in the elastic supporting structure, the food temperature detection unit 30 is driven to abut against the heat conductive material or the detection portion 11 by the elastic force of the elastic member.

[0127] To implement an elastic support structure, referring to Figures 4, 5, 8-10, and 12, in some embodiments, the front mounting base 40 provides elastic support for the second temperature detection unit 320 and / or a portion of the first temperature detection unit 310, thereby forming a heat conduction structure between the second temperature detection unit 320 and / or a portion of the first temperature detection unit 310 and the detection portion 11. In some embodiments, the intermediate mounting base 50 provides elastic support for the first temperature detection unit 310, thereby forming a heat conduction structure between the first temperature detection unit 310 and the extension section 110. In these embodiments, the front mounting base 40 and the intermediate mounting base 50 act as elastic members due to their inherent material properties, providing elastic support force. In other embodiments, springs, compression springs, torsion springs, and other materials may also be used as the elastic members of the elastic support structure. For example, in some embodiments, the elastic member can directly or indirectly apply elastic force to the mounting base of the food temperature detection unit 30 (e.g., the front mounting base 40 and the intermediate mounting base 50), thereby forming an elastic support structure. Alternatively, in some other embodiments, the elastic member applies elastic force directly to the food temperature detection unit 30 , thereby forming an elastic supporting structure.

[0128] Of course, in other embodiments, at least a portion of the food temperature detection unit 30 may also form a heat conduction structure with the extension section 110 through a non-elastic support structure. For example, the food temperature detection unit 30 is directly or indirectly pressed against the extension section 110 by a non-elastic structure, for example, by welding, bonding, clamping or locking the non-elastic structure with a fixing member (such as a screw).

[0129] On the other hand, in some embodiments, the thermal conductivity of the detection portion 11 in any direction along its outer wall (except the wall thickness direction) may be smaller than its thermal conductivity in the wall thickness direction, so that the heat in the external area of ​​the detection portion 11 corresponding to the area where the food temperature detection unit 30 is located can be quickly conducted to the food temperature detection unit 30, and at the same time, the heat from other areas of the detection portion 11 is prevented from being conducted to the food temperature detection unit 30, which would interfere with the temperature measurement results.

[0130] Specifically, in some embodiments, in order to accurately measure the temperature of the object to be measured, the thermal conductivity of the detection portion 11 in its extension direction (the extension direction may refer to the length direction of the detection portion 11, i.e., the longitudinal direction) may be made smaller than the thermal conductivity of the detection portion 11 in its wall thickness direction, so as to avoid as much as possible the heat from other areas of the detection portion 11 in the extension direction being conducted to the food temperature detection unit 30, affecting the temperature measurement, so that the temperature information of the corresponding measured area obtained by the food temperature detection unit 30 is sufficiently accurate and effective.

[0131] Generally, thinner wall thickness results in faster temperature diffusion along the longitudinal direction of the temperature detection device 1, but has less impact on temperature diffusion along the wall thickness direction. For example, in some embodiments, the wall thickness of the detection portion 11 is 0.3-0.8 mm (inclusive), and specifically, in some embodiments, the wall thickness of the detection portion 11 is 0.5 mm. In some embodiments, the outer wall of the detection portion 11 may be threaded to accelerate temperature diffusion along the longitudinal direction of the temperature detection device 1, while minimizing the impact on temperature diffusion along the wall thickness direction.

[0132] Further, please refer to Figures 5 and 12. In some embodiments, at least a portion of the food temperature detection unit 30 is fixed on the control circuit board 20, and at least a portion of the food temperature detection unit 30 is separated from the control circuit board 20 and forms a heat conduction structure with the inner wall of the extension section 110.

[0133] Further, referring to Figures 4, 5, 8-10, and 12, in some embodiments, the extension section 110 includes a safety zone marking 113. The area from the front end of the front end portion 120 to the safety zone marking 113 constitutes the safety zone, and the food temperature detection unit 30 is located within the safety zone. In some embodiments, the safety zone marking 113 may be a line or a three-dimensional, concave or convex line with a surface color that is significantly different from the rest of the extension section 110, indicating to the user the insertion depth of the temperature detection device 1 into the object to be measured (e.g., food). Of course, the safety zone marking 113 may also employ other marking methods that provide information to the user, such as color, pattern, or other visually appealing methods. Because the safety zone is designed to allow full insertion into food during use, and the temperature inside the food is lower than that of the outside cooking environment, damage to the electronic components of the temperature detection device 1 caused by high temperatures in the cooking environment (e.g., ovens above 200°C, BBQ ovens above 500°C, etc.) can be avoided. Furthermore, the safety zone marking 113 can prevent damage to the front end 120 of the extension section 110 due to the temperature detection device 1 being inserted too deeply into the object being measured, and can also prevent burns to the operator. In some embodiments, the safety zone marking 113 can be provided on the outer wall of the extension section 110. In some embodiments, the safety zone marking 113 can be provided around the outer wall of the extension section 110.

[0134] Further, referring to Figures 4, 5, 8-10, and 12, some embodiments further include a power supply battery 60, such as a rechargeable battery or a disposable battery. The power supply battery 60 is disposed within the detection portion 11, and the power supply battery 60 is located within the safe zone. The power supply battery 60 is used to power the various electrical components within the temperature detection device 1. Of course, in other embodiments, the device may also include a power supply module, which is electrically connected to the control circuit board 20. The power supply module can be used to connect to an external power supply (such as an external 220V power supply or other power supply), thereby using the external power supply to power the various electrical components within the temperature detection device 1.

[0135] Referring to Figures 4, 5, 8-10, and 12, in some embodiments, the control circuit board 20 is located within the safe zone to ensure that it can be located inside the food 2 during use, preventing the high temperatures in the cooking environment from damaging the control circuit board 20. In some embodiments, the power supply battery 60 is located at the front end of the control circuit board 20 in the longitudinal direction of the detection unit 11 to ensure that it can be located inside the food 2 during use, preventing the high temperatures in the cooking environment from damaging the power supply battery 60. Moreover, placing the power supply battery 60 at the front side of the control circuit board 20 also helps increase the weight of the head of the entire detection unit 11, making it easier to insert the device into the food 2.

[0136] Further, referring to Figures 4, 5, 8-10, and 12, some embodiments further include an ambient temperature detection unit 70. The housing 10 includes a handle portion 12, which is connected to the rear end of the detection portion 11. The ambient temperature detection unit 70 is disposed within the handle portion 12 and is located outside the safety zone. The ambient temperature detection unit 70 is welded to the control circuit board 20, and the welding point is within the safety zone. The ambient temperature detection unit 70 is used to detect the temperature of the cooking environment and provide feedback to the control circuit board 20 to help determine the temperature of the cooking environment. In addition, in some embodiments, the temperature information of the cooking environment can also be used to help determine the minimum internal temperature of the food 2, for example as one of the factors for determining or calculating the minimum internal temperature of the food 2.

[0137] Furthermore, some embodiments further include an antenna 80 electrically connected to the control circuit board 20 to enable wireless communication between the temperature detection device 1 and other devices. The antenna 80 can be implemented using, but is not limited to, various existing wireless communication technologies such as WIFI, Bluetooth, and cellular data. Furthermore, in other embodiments, the temperature detection device 1 can also be implemented using a wired connection, such as a cable, to connect to another terminal or an external antenna module.

[0138] Further, referring to Figures 4 and 8-10, in some embodiments, an antenna 80 is disposed on the handle portion 12 and has a helical structure. Compared to antenna structures with a linear or zigzag distribution, designing the antenna 80 as a helical structure can ensure the antenna's length within a smaller space. The helical structure can also form a hollow area. In some embodiments, the ambient temperature detection unit 70 can be disposed within the hollow area of ​​the helical structure, thereby utilizing this hollow area to house the ambient temperature detection unit 70. This improves the compactness of the entire antenna and ambient temperature detection unit assembly structure and helps reduce the outer diameter of the entire handle portion 12.

[0139] Of course, in other embodiments, the antenna 80 may be configured in other shapes and structures, such as a linear, zigzag, planar, or card-shaped structure. The ambient temperature detection unit 70 may also be disposed outside the antenna 80, for example, side by side with the antenna 80 in the horizontal direction or arranged longitudinally in front of and behind the antenna 80.

[0140] Further, referring to Figures 5 and 12 , in some embodiments, an antenna 80 is provided on the handle portion 12 . The antenna 80 is a card structure. A barrier 81 is provided between the cable 71 of the ambient temperature detection unit 70 and the card structure antenna 80 to create a gap between the cable 71 and the antenna 80, thereby preventing the cable 71 from affecting the signal transmission and reception of the antenna 80. The barrier is made of insulating ceramic or a material with similar functions.

[0141] Further, referring to Figures 4, 5, 8-10, and 12, in some embodiments, the handle portion 12 has an exposed first conductive member 91, which is electrically connected to the control circuit board 20 and serves as the first electrode of the control circuit board 20. The detection portion 11 is provided with a second conductive member 92, which is made of a conductive material. The second conductive member 92 electrically connects the detection portion 11 to the control circuit board 20, allowing the detection portion 11 to serve as the second electrode of the control circuit board 20. The first electrode and the second electrode are respectively one of the positive and negative electrodes. Utilizing these first and second electrodes, the temperature detection device 1 can be conveniently electrically connected to the outside world, such as by directing current to the control circuit board 20 for charging. Of course, in other embodiments, the first and second electrodes can also be formed by other components outside of the detection portion 11, or both can be provided on the handle portion 12 or the detection portion 11.

[0142] Of course, in other embodiments, the temperature detection device 1 can also be electrically connected to the outside world in other ways, such as charging through a wireless charging coil.

[0143] 4 and 8-10, in some embodiments, the second conductive member 92 is a conductive ejector pin. Referring to FIG5 and 12, in some embodiments, the second conductive member 92 is a metal spring.

[0144] Further, referring to Figures 4, 5, 8-10 and 12, in some embodiments, the handle portion 12 is plug-fitted with the detection portion 11, and an adhesive medium is filled in the plug-fitting gap to form a better sealing effect.

[0145] Further, please refer to Figures 5 and 12. In some embodiments, a glue-supporting isolation member 13 is provided in the insertion gap or the detection portion 11 to block the adhesive medium from flowing into the interior of the detection portion 11, thereby preventing the adhesive medium from flowing into the handle portion 12 or the interior of the detection portion 11 and affecting the functions of other components.

[0146] On the other hand, in some embodiments of the present application, another food temperature detection device 1 is provided. The temperature detection device 1 includes a housing 10 , a control circuit board 20 and a plurality of food temperature detection units 30 .

[0147] The housing 10 includes a detection portion 11 for contacting food. The housing 10 defines a mounting cavity, at least a portion of which is located within the detection portion 11. The control circuit board 20 is disposed within the mounting cavity. The food temperature detection unit 30 is disposed within the housing 10. A first temperature detection unit 310 is electrically connected to the control circuit board 20 to transmit a signal detected by the first temperature detection unit 310 to the control circuit board 20.

[0148] At least a portion of the food temperature detection unit 30 is separated from the control circuit board 20 and forms a heat conduction structure with the inner wall of the detection part 11, so as to better receive the temperature information from the detection part 11 through the direct heat conduction structure.

[0149] In each of the above embodiments, multiple food temperature detection units 30 are distributed in a three-dimensional space to achieve multi-point temperature measurement on the temperature detection device 1, which is not affected by the shape of the food and the insertion depth of the user, greatly increasing the probability of measuring the temperature of the center of the food in one insertion, thereby achieving more accurate acquisition of the temperature of the center of the food or the temperature closest to the center of the food, and assisting the user in accurately judging the maturity of the food.

[0150] Furthermore, some embodiments illustrate methods for determining food temperature, but the structures described herein are not limited to these methods for determining food temperature. Specifically, when there are at least two food temperature detection units, within the same determination cycle (e.g., the same time or duration), the control circuit board 20 uses the lowest temperature measured by the food temperature detection unit 30 as the food temperature detected within that determination cycle; alternatively, the control circuit board 20 uses the average temperature measured by the food temperature detection unit 30 as the food temperature detected within that determination cycle.

[0151] Specifically, in some embodiments, normal temperature information is temperature information after excluding the interference of abnormal temperature information, which more accurately reflects the actual temperature of the object being measured. Abnormal temperature information may include temperature values ​​that are too high and / or too low compared to the temperature values ​​of other food temperature detection units 30. Abnormal temperature information may be generated based on the temperature measurement area and environmental factors or equipment failure. It cannot reflect the actual temperature of the object being measured and interferes with the temperature measurement results of the object being measured. In some embodiments, the control circuit board 20 can determine abnormal temperature information and normal temperature information based on the temperature information of at least two different areas of the object being measured measured by at least two food temperature detection units 30. Of course, in some embodiments, the control circuit board 20 may not exclude abnormal temperature information or perform the step of determining abnormal temperature information when judging the detected temperature of the food.

[0152] In some embodiments, the temperature difference between the temperature information of adjacent food temperature detection units 30 can be determined based on the temperature information of at least two (preferably more than two) items of the object being measured. As an example only, a temperature difference threshold value A can be preset (e.g., A is 10°C, 20°C, 25°C, etc.). When the temperature information of a food temperature detection unit 30 has a temperature difference greater than A between at least one of the temperature information of its two adjacent food temperature detection units 30, the temperature information of the food temperature detection unit 30 is determined to be abnormal temperature information, while the temperature information of the adjacent food temperature detection unit 30 is not determined to be abnormal temperature information. If the temperature difference between the temperature information of the two adjacent food temperature detection units 30 is less than A, the temperature information of the food temperature detection unit 30 is determined to be normal temperature information. When a food temperature detection unit 30 has only one adjacent food temperature detection unit 30, if the temperature difference between the temperature information of the food temperature detection unit 30 and the temperature information of the adjacent food temperature detection unit 30 is greater than A, the temperature information of the food temperature detection unit 30 is determined to be abnormal temperature information; if the temperature difference between the temperature information of the food temperature detection unit 30 and the temperature information of the adjacent food temperature detection unit 30 is less than A, the temperature information of the food temperature detection unit 30 is determined to be normal temperature information. In the case of only two temperature information, if the temperature difference between the two temperature information is greater than a threshold, at least one of the temperature information is determined to be abnormal temperature information, and the other temperature information is determined to be normal temperature information. In this case, the temperature information of the food temperature detection unit 30 near the handle portion 12 or the front end portion 120 can be preset as abnormal temperature information as needed. Since the food temperature detection units 30 are arranged along the extension direction of the detection portion 11, the temperature information of each adjacent food temperature detection unit 30 corresponds to the temperature information of each adjacent area of ​​the object being measured.

[0153] As an example only, the temperature difference threshold is set to A1. When the number of food temperature detection units 30 is 2, if the temperature difference between the two temperature information is greater than the threshold A1, then according to the preset, one of the temperature information close to the handle portion 12 or close to the front end portion 120 is judged as temperature abnormality information, and the other temperature information is judged as normal temperature information. When the number of food temperature detection units 30 is 3, if at least one of the temperature differences between the temperature information of the food temperature detection unit 30 in the middle position and its two adjacent food temperature detection units 30 is greater than A1, then the temperature information of the food temperature detection unit 30 in the middle position is judged as temperature abnormality information, while the two adjacent food temperature detection units 30 are not judged as temperature abnormality information; if the temperature difference between the temperature information of the two adjacent food temperature detection units 30 is less than A1, then the temperature information of the middle food temperature detection unit 30 is judged as normal temperature information; for the food temperature detection unit 30 in the left position, there is only one adjacent middle-position food temperature detection unit 30. For the food temperature detection units 30 located on the left, if the temperature difference between the temperature information of the food temperature detection unit 30 located on the left and the temperature information of the food temperature detection unit 30 located in the middle is greater than A1, the temperature information of the food temperature detection unit 30 located on the left is determined to be abnormal temperature information; if the temperature difference between the temperature information of the food temperature detection unit 30 located on the left and the temperature information of the food temperature detection unit 30 located in the middle is less than A1, the temperature information of the food temperature detection unit 30 is determined to be normal temperature information; the determination method for the food temperature detection unit 30 located on the right is the same as the determination method for the food temperature detection unit 30 located on the left. The determination method for more than three food temperature detection units 30 is the same as the determination method for three food temperature detection units 30, and will not be repeated here.

[0154] In some embodiments, one or more food temperature detection units 30 can be preset as key location detection units. A key location detection unit can be the sensor closest to the center of the object being measured during temperature measurement, and it best reflects the temperature at the center of the object being measured. A key location detection unit can be a food temperature detection unit 30 located on the side wall of the detection unit 11, or it can be a food temperature detection unit 30 located at the front end 120 of the detection unit 11. In some embodiments, the key location detection unit can be set by the user according to the instructions in the manual, or it can be pre-set by the product designer based on product design principles. For example, if the instructions or product design principles indicate that the front end 120 should be inserted into the center of the food, then the key location detection unit can be set as the food temperature detection unit 30 located at the front end 120. For another example, if the instructions or product design principles indicate that one or more food temperature detection units 30 located on the side wall of the detection unit 11 should be used to determine the temperature at the center of the food, then that food temperature detection unit 30 or these food temperature detection units 30 can serve as the key location detection unit.

[0155] In some embodiments, when the temperature information acquired by the key position detection unit is abnormal due to equipment failure or improper operation, a prompt event may be generated, such as an error message or a warning sound. In some embodiments, for multiple key position detection units, a prompt event may be configured to be generated when the temperature information acquired by all key position detection units is abnormal, or to be generated when the temperature information acquired by any or specified one or more key position detection units is abnormal.

[0156] After the user inserts the temperature detection device 1 into the food, multiple food temperature detection units 30 measure the temperature. After removing abnormal temperature values, the lowest temperature value is the temperature value of the center of the meat. Since the food temperature detection units 30 are spatially distributed at a certain angle, they will not be affected by the diameter of the detection part 11 itself, resulting in the situation where only one side of the temperature can be measured. In some embodiments, since the food temperature detection unit 30 is directly or indirectly close to the metal tube, each food temperature detection unit 30 is separated by a separate accommodating cavity, so that the external temperature or the temperature at different positions will not be transmitted through the air inside the temperature detection device 1. Therefore, the temperature measured by each food temperature detection unit 30 is almost the temperature measured at the inner wall of the detection part 11, so it can quickly and accurately reflect the food temperature at the temperature measurement point.

[0157] This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope of this document. For example, the various operational steps and components used to perform the operational steps may be implemented in different ways (e.g., one or more steps may be deleted, modified, or incorporated into other steps) depending on the specific application or any number of cost functions associated with the operation of the system.

[0158] Although the principles of this invention have been shown in various embodiments, many modifications of structure, arrangement, proportion, elements, materials and components that are particularly suitable for specific environments and operational requirements can be used without departing from the principles and scope of this invention. The above modifications and other changes or amendments are intended to be included within the scope of this invention.

[0159] The foregoing detailed description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of this disclosure. Therefore, the consideration of this disclosure will be illustrative rather than restrictive, and all such modifications will be included within its scope. Similarly, the advantages, other advantages and solutions to the problems of the various embodiments have been described above. However, the benefits, advantages, solutions to the problems and any elements that can produce these, or make them more specific, should not be interpreted as critical, necessary or essential. The term "comprising" and any other variants used in this article are all non-exclusive inclusions, so that a process, method, article or device that includes a list of elements includes not only these elements, but also other elements that are not explicitly listed or do not belong to the process, method, system, article or device. In addition, the term "coupling" and any other variants used in this article refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections and / or any other connections.

[0160] Those skilled in the art will recognize that many changes can be made to the details of the above embodiments without departing from the basic principles of the invention. Therefore, the scope of the invention should be determined from the following claims.

Claims

1. A temperature detection device for food ingredients, characterized in that, include: A housing, the housing comprising a detection portion for contacting food, the housing forming a mounting cavity, at least a portion of the mounting cavity being located at the detection portion; The detection portion is in a long strip structure, comprising a front end portion and an extension section connected to the rear side of the front end portion; A control circuit board, wherein the control circuit board is arranged in the installation cavity; and a plurality of food temperature detection units, the food temperature detection units being arranged on the housing, the food temperature detection units having detection ends for collecting temperature information, at least a portion of the food temperature detection units being first temperature detection units, the first temperature detection units being arranged on the extension section; The first temperature detection unit is electrically connected to the control circuit board to transmit the signal detected by the first temperature detection unit to the control circuit board; Among them, the extension section has a first longitudinal part and a second longitudinal part divided by a longitudinal reference plane passing through its center line, and the first longitudinal part and the second longitudinal part are respectively provided with at least one first temperature detection unit to respectively collect temperature information of the areas corresponding to the first longitudinal part and the second longitudinal part.

2. The temperature detection device according to claim 1, characterized in that, The control circuit board is arranged to extend in the longitudinal direction of the detection portion, the longitudinal reference plane is parallel to or coincides with the control circuit board, and the control circuit board has a control circuit electrically connected to the food temperature detection unit.

3. The temperature detection device according to claim 2, wherein The control circuit board has a first surface and a second surface that are arranged opposite to each other, the first surface and / or the second surface are provided with electronic components of the control circuit, and the longitudinal reference plane is parallel to or coincides with the first surface or the second surface.

4. The temperature detection device according to claim 3, wherein, On the cross-section of the detection portion, a projection of a portion of the detection end of the first temperature detection unit is located within the projection range of a space formed by extending from the first surface in a direction away from the second surface, and a projection of a portion of the detection end of the first temperature detection unit is located within the projection range of a space formed by extending from the second surface in a direction away from the first surface.

5. The temperature detection device according to claim 3, characterized in that, A portion of the first temperature detection unit is fixedly installed on the first surface, and a portion of the first temperature detection unit is fixedly installed on the second surface.

6. The temperature detection device according to any one of claims 1-5, characterized in that, There are at least two first temperature detection units, which are arranged in the longitudinal direction of the extension section, and at least two first temperature detection units are located at different positions in the longitudinal direction.

7. The temperature detection device according to any one of claims 1-6, characterized in that, There are at least two first temperature detection units for detecting temperature information of the area corresponding to the first longitudinal part, and / or there are at least two first temperature detection units for detecting temperature information of the area corresponding to the second longitudinal part, and the projections of at least some of the first temperature detection units on the cross-section of the extension section are completely staggered or incompletely overlapped with each other.

8. The temperature detection device according to any one of claims 1-7, characterized in that, On the cross section of the extension section, projections of at least a portion of the first temperature detection unit are arranged around the center of the cross section.

9. The temperature detection device according to claim 8, characterized in that, On the cross section of the extension section, projections of two adjacent first temperature detection units form a central angle with the center of the cross section, and the central angle is 85°-95°.

10. The temperature detection device according to claim 8, characterized in that, On the cross section of the extension section, projections of a plurality of first temperature detection units are arranged around the center of the cross section, and among the plurality of first temperature detection units, the central angle formed by the projections of two adjacent first temperature detection units and the center of the cross section is equal.

11. The temperature detection device according to claim 8, characterized in that, There are at least four first temperature detection units, wherein, on the cross section of the extension section, projections of four first temperature detection units are arranged around the center of the cross section, and among the four first temperature detection units, the projections of two adjacent first temperature detection units form a central angle with the center of the cross section, and the central angle is 90°.

12. The temperature detection device according to any one of claims 1-11, characterized in that, At least a portion of the food temperature detection units are second temperature detection units, and the second temperature detection units are arranged at the front end portion to detect the temperature of a corresponding area of the front end portion.

13. The temperature detection device according to claim 12, wherein, On the cross section of the extension section, the projection of the second temperature detection unit coincides with the center of the cross section.

14. The temperature detection device according to claim 12 or 13, characterized in that, At least one food temperature detection unit is separately arranged in the accommodating cavity, and the cavity wall of the accommodating cavity isolates the food temperature detection unit in the accommodating cavity from other food temperature detection units, and forms a thermal isolation structure for the food temperature detection unit in the longitudinal direction of the detection part to reduce the heat from other areas transferred to the food temperature detection unit located in the accommodating cavity along the longitudinal direction of the detection part.

15. The temperature detection device according to claim 14, characterized in that, The cavity wall of the accommodating cavity, except for the area facing the detection portion, forms a thermal isolation structure for the food temperature detection unit therein.

16. The temperature detection device according to claim 14 or 15, characterized in that It also includes a front end mounting seat, which is fixed in the detection part and at least a part of which is located in the front end part. At least one front end accommodating cavity is formed between the front end of the front end mounting seat and the front end part, and a second temperature detection unit is arranged in each of the front end accommodating cavities.

17. The temperature detection device according to claim 16, characterized in that, At least one lateral accommodating cavity is formed between the peripheral side of the front end mounting seat and the front end portion, and one first temperature detection unit is arranged in each of the lateral accommodating cavities.

18. The temperature detection device according to claim 17, characterized in that, In the cross section of the extension section, a projection of at least one first temperature detection unit located in the side accommodating cavity completely overlaps, partially overlaps, or completely staggers with a projection of at least one second temperature detection unit located in the front accommodating cavity.

19. The temperature detection device according to any one of claims 16-18, characterized in that, The front end mounting seat forms an elastic support for the second temperature detection unit or a part of the first temperature detection unit, so that the second temperature detection unit or a part of the first temperature detection unit and the detection part form a heat conduction structure.

20. The temperature detection device according to any one of claims 16-19, characterized in that, The front end of the front end mounting seat has a first mounting groove, the second temperature detection unit is fixed in the first mounting groove, and the front end accommodating cavity is formed between the first mounting groove and the front end portion.

21. The temperature detection device according to any one of claims 16-20, characterized in that, The front end mounting seat has at least one second mounting groove on its circumferential side, the first temperature detection unit is fixed in the second mounting groove, and the side accommodating cavity is formed between the second mounting groove and the extension section.

22. The temperature detection device according to any one of claims 14-21, characterized in that, It further includes at least one intermediate mounting base which is fixed within the extension section. The intermediate mounting base and the corresponding side walls on the extension part form a circumferential accommodation cavity, and a first temperature detection unit is arranged in each circumferential accommodation cavity.

23. The temperature detection device according to claim 22, characterized in that, The intermediate mounting base elastically supports the first temperature detection unit to form a heat conduction structure between the first temperature detection unit and the extension section.

24. The temperature detection device according to claim 22 or 23, characterized in that, The intermediate mounting base has a third mounting groove, and at least a part of the first temperature detection unit is fixed within the third mounting groove. The circumferential accommodation cavity is formed between the third mounting groove and the extension section.

25. The temperature detection device according to any one of claims 22-24, characterized in that, There are at least two intermediate mounting bases which are arranged longitudinally along the extension section, and there is a gap between adjacent intermediate mounting bases; the control circuit board passes through the intermediate mounting bases longitudinally along the extension section.

26. The temperature detection device according to any one of claims 14-25, characterized in that, At least the part for forming the corresponding accommodation cavity on the front-end mounting base and / or the intermediate mounting base is made of a heat-insulating material.

27. The temperature detection device according to claim 26, wherein, The heat-insulating material is silicone, rubber or resin which has elasticity and high temperature resistance.

28. The temperature detection device according to any one of claims 1-27, characterized in that, At least a part of the foodstuff temperature detection unit forms an elastic support structure to form a heat conduction structure between at least a part of the foodstuff temperature detection unit and the extension section.

29. The temperature detection device according to claim 28, characterized in that, In the heat conduction structure, the foodstuff temperature detection unit directly abuts against the inner wall of the detection part, or a heat conduction material is arranged between the foodstuff temperature detection unit and the inner wall of the detection part, and the foodstuff temperature detection unit, the heat conduction material and the detection part abut against each other.

30. The temperature detection device according to claim 29, characterized in that, In the elastic support structure, the foodstuff temperature detection unit is driven by the elastic force of the elastic member to abut against the heat conduction material or the detection part.

31. The temperature detection device according to any one of claims 28-30, characterized in that, The heat conduction material is thermal grease, thermal silica gel, thermal rubber, thermal silicone, thermal adhesive, thermal paste or thermal film.

32. The temperature detection device according to any one of claims 1-31, characterized in that, At least a part of the foodstuff temperature detection unit is fixed on the control circuit board, at least a part of the foodstuff temperature detection unit is separated from the control circuit board and forms a heat conduction structure with the inner wall of the extension section.

33. The temperature detection device according to any one of claims 1-32, characterized in that, The extension section has a safety zone mark. The area from the front end of the front-end part to the safety zone mark is the safety zone, and the foodstuff temperature detection unit is arranged within the range of the safety zone.

34. The temperature detection device according to claim 33, characterized in that, It further includes a power supply battery which is arranged within the detection part and is located within the range of the safety zone.

35. The temperature detection device according to claim 34, characterized in that, The control circuit board is located within the range of the safety zone. Longitudinally in the detection part, the power supply battery is located at the front end of the control circuit board.

36. The temperature detection device according to any one of claims 33-35, characterized in that, It further includes an ambient temperature detection unit. The housing includes a handle part which is connected to the rear end of the detection part. The ambient temperature detection unit is arranged within the handle part and is located outside the safety zone. The ambient temperature detection unit is welded to the control circuit board, and the welding point is located within the range of the safety zone.

37. The temperature detection device according to claim 36, characterized in that, It further includes an antenna which is arranged within the handle part. The antenna is a spiral structure, and the ambient temperature detection unit passes through the hollow area of the spiral structure.

38. The temperature detection device according to claim 36, characterized in that, It further includes an antenna which is disposed on the handle portion. The antenna is in the form of a board structure, and a spacer is provided between the cable of the ambient temperature detection unit and the board structure so that there is a gap between the cable and the board structure.

39. The temperature detection device according to claim 36, characterized in that, The handle portion has an exposed first conductive member which is electrically connected to the control circuit board to serve as the first electrode of the control circuit board; a second conductive member is provided in the detection portion. The detection portion is made of a conductive material. The second conductive member electrically connects the detection portion to the control circuit board so that the detection portion can serve as the second electrode of the control circuit board. The first electrode and the second electrode are respectively one of the positive electrode and the negative electrode.

40. The temperature detection device according to claim 39, characterized in that, The second conductive member is a conductive thimble or a metal shrapnel.

41. The temperature detection device according to any one of claims 36-40, characterized in that, The handle portion is in plug-in fit with the detection portion, and an adhesive medium is filled in the plug-in gap of the plug-in fit. A glue support isolation member is provided in the plug-in gap or the detection portion to block the adhesive medium from flowing into the interior of the detection portion.

42. The temperature detection device according to any one of claims 1 to 41, characterized in that, There are at least two food temperature detection units. In the same judgment period, the control circuit board takes the lowest temperature measured by the food temperature detection unit as the detected temperature of the food in this judgment period; or, the control circuit board takes the average temperature measured by the food temperature detection unit as the detected temperature of the food in this judgment period.

43. A temperature detection device for food ingredients, characterized in that, Comprising: A housing which includes a detection portion for contacting food. The housing forms an installation cavity, and at least a part of the installation cavity is located in the detection portion; A control circuit board which is disposed in the installation cavity; And a plurality of food temperature detection units which are disposed on the housing. The first temperature detection unit is electrically connected to the control circuit board to transmit the signal detected by the first temperature detection unit to the control circuit board; Wherein, at least a part of the food temperature detection units are separated from the control circuit board and form a heat conduction structure with the inner wall of the detection portion.

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