CN115752788A - Handheld temperature probe for food cooking - Google Patents
Handheld temperature probe for food cooking Download PDFInfo
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- CN115752788A CN115752788A CN202211559422.3A CN202211559422A CN115752788A CN 115752788 A CN115752788 A CN 115752788A CN 202211559422 A CN202211559422 A CN 202211559422A CN 115752788 A CN115752788 A CN 115752788A
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- 238000010411 cooking Methods 0.000 title claims abstract description 27
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- 239000004519 grease Substances 0.000 claims description 8
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- 230000004044 response Effects 0.000 abstract description 17
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/08—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples the object to be measured forming one of the thermoelectric materials, e.g. pointed type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/10—Arrangements for compensating for auxiliary variables, e.g. length of lead
- G01K7/12—Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The application discloses a handheld temperature probe for cooking food materials, which comprises a probe assembly, wherein the probe assembly comprises a pipe body, a thermocouple and a first heat conduction material, and the pipe body is provided with an accommodating cavity; one part of the thermocouple is arranged in the accommodating cavity, the working end of the thermocouple is penetrated and fixedly arranged on the pipe body, and at least part of the working end is exposed out of the pipe body and used for detecting the temperature; the first heat conduction material is filled in the accommodating cavity and at least covers the connection part of the working end and the pipe body. The handheld temperature probe for cooking food materials has short response time and accurate temperature detection result.
Description
Technical Field
The invention relates to the technical field of temperature sensors, in particular to a handheld temperature probe for cooking food materials.
Background
With the advancement of science and technology and the improvement of taste and nutrition requirements of food materials, people expect more accurate control of temperature elements in the cooking process, in some embodiments, more accurate control of the temperature of the food materials, the temperature of water for heating the food materials, and the like, and thus a handheld temperature detection device applied to food material cooking comes into play.
In the temperature detection device, the temperature probe can be used as a temperature measuring element to measure the temperature, and the control unit can convert a temperature signal into a thermoelectromotive force signal so as to obtain a temperature detection result, thereby realizing the detection of the temperature.
Referring to fig. 1, fig. 1 is a schematic structural view of a conventional temperature probe 20, in order to reduce the response time of the temperature probe 20, the temperature probe 20 is constructed such that a heat conductive material 23 is filled between a thermocouple 22 and a pipe body 21, but a working end 221 of the thermocouple 22 in the pipe body 21 is still a certain distance away from a measured object, which may affect the response time of the temperature probe 20. Therefore, when a quick-response handheld temperature probe is manufactured, the response time of the temperature probe with the structure is long, and the requirement of quick response of the temperature probe is difficult to meet.
Disclosure of Invention
The application provides a hand-held type temperature probe for eating material culinary art, can solve the long problem of response time of temperature probe.
In order to solve the above technical problem, the present application provides a technical solution that: a hand-held temperature probe for food cooking is provided, which comprises a probe assembly including a tube body, a thermocouple and a first heat conducting material. The tube body is provided with an accommodating cavity; one part of the thermocouple is arranged in the accommodating cavity, the working end of the thermocouple is penetrated and fixedly arranged on the tube body, and at least part of the working end is exposed out of the tube body and used for detecting temperature; the first heat conduction material is filled in the accommodating cavity and at least covers the connection part of the working end and the pipe body.
In one embodiment, the first heat conductive material is filled in the accommodating cavity by a centrifugal process.
In one embodiment, the accommodating cavity comprises a first cavity extending backwards from the front end of the accommodating cavity, the thermocouple penetrates through the first cavity, the working end of the thermocouple is communicated and fixedly arranged on the cavity wall of the first cavity, a first heat conduction material is filled between the cavity wall of the first cavity and the thermocouple, and the radial clearance a between the thermocouple and the cavity wall of the first cavity is less than 3mm.
In one embodiment, a is 0.1mm ≦ 1mm.
In one embodiment, the accommodating cavity comprises a second cavity body communicated with the first cavity body, the thermocouple also penetrates through the second cavity body, and the radial clearance b between the thermocouple and the cavity wall of the second cavity body is larger than or equal to a.
In one embodiment, the first heat conductive material is also disposed on the walls of the second chamber.
In one embodiment, the first thermally conductive material fills a gap between the cavity wall of the first cavity and the thermocouple.
In one embodiment, the first thermally conductive material is thermally conductive silicone grease or copper powder.
In one embodiment, the probe assembly further comprises a second heat conducting material filled between the cavity wall of the second cavity and the thermocouple, and the second heat conducting material is used for sealing the first heat conducting material.
In one embodiment, the first thermally conductive material is copper powder and the second thermally conductive material is thermally conductive silicone grease.
In one embodiment, the hand-held temperature probe for cooking food further comprises a main body, the probe assembly is connected to the main body, and the probe assembly is electrically connected with the control unit in the main body.
Another technical scheme provided by the application is as follows: a hand-held temperature probe for food cooking is provided, comprising a probe assembly. The probe assembly comprises a pipe body, a thermocouple and a first heat conduction material, wherein the pipe body is provided with an accommodating cavity, one part of the thermocouple is arranged in the accommodating cavity, the first heat conduction material is filled in the accommodating cavity, the first heat conduction material at least covers a working end of the thermocouple, and the first heat conduction material is filled in the accommodating cavity through a centrifugal process.
In one embodiment, the accommodating cavity comprises a first cavity extending backwards from the front end of the accommodating cavity, a part of the thermocouple is arranged in the first cavity, a first heat conduction material is filled between the cavity wall of the first cavity and the thermocouple, and the radial clearance a between the thermocouple and the cavity wall of the first cavity is less than 3mm.
In one embodiment, the accommodating cavity comprises a second cavity body communicated with the first cavity body, the thermocouple penetrates through the second cavity body, and the radial clearance b between the thermocouple and the cavity wall of the second cavity body is larger than or equal to a.
In one embodiment, the first heat conductive material is also disposed on the walls of the second chamber.
The application provides a hand-held type temperature probe for eating material culinary art, this temperature probe's probe subassembly includes body, thermocouple and first heat conduction material. The body has and holds the chamber, and during the chamber was held to some locating of thermocouple, the working end of thermocouple link up and fixed the setting on the body, and the at least part of working end of thermocouple exposes from the body for detect the temperature, from this, this temperature probe is when using, and the working end of the thermocouple who exposes from the body can direct and the object contact that awaits measuring, compares in the structure of current working end and the object indirect contact that awaits measuring, and this temperature probe's response time is shorter. The first heat conduction material is filled in the accommodating cavity, the first heat conduction material at least covers the joint of the working end and the tube body, the air is heated slowly, particularly, air which does not flow easily in the tube body is a poor heat conductor, the first heat conduction material covers the joint of the working end and the tube body, the air near the joint can be replaced by the heat conduction material with good heat conductivity, the response time that the temperature probe reaches the target temperature due to heat absorption of the air near the joint can be prevented from being prolonged, and the response time of the temperature probe can be further reduced.
In particular, in one embodiment, the first thermally conductive material is filled in the receiving cavity by a centrifugal process. The mode that uses centrifugal technology to fill first heat conduction material requires for a short time to the clearance size between body and the thermocouple, even very little clearance also can realize the packing of first heat conduction material through centrifugal mode, consequently can be with the thinner of body design, more do benefit to the miniaturized design of this handheld temperature probe. And because the process of centrifugally filling the heat conduction material is not influenced by the gap between the tube body and the thermocouple, the influence of the operation process on the thermocouple is small. In addition, the air bubbles in the first heat conduction material centrifuged by the centrifugal process are few or no, the surface is smooth, and the heat conduction effect is better.
Drawings
FIG. 1 is a schematic diagram of a conventional temperature probe according to the present application;
FIG. 2 is a block diagram of a temperature probe provided herein;
FIG. 3 is a schematic diagram of one construction of a probe assembly provided herein;
FIG. 4 is a graph of the motion profile of a first thermally conductive material in a probe assembly provided herein;
FIG. 5 is a schematic view of another construction of a probe assembly provided herein;
FIG. 6 is a schematic view of another embodiment of a probe assembly according to the present disclosure.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the description of the methods may be transposed or transposed in order, as will be apparent to a person skilled in the art. Thus, the various sequences in the specification and drawings are for the purpose of clearly describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where a certain sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified.
In order to be able to detect the temperature of a foodstuff or a foodstuff processing medium (such as water) during cooking, and to facilitate use, the present application provides a hand-held temperature probe 10 for foodstuff cooking (hereinafter referred to as temperature probe 10). As shown in fig. 2, fig. 2 is a schematic structural diagram of a temperature probe 10 provided in the present application.
The temperature probe 10 includes a probe assembly 11 and a body 12, the probe assembly 11 being attached to the body 12. Wherein the probe assembly 11 can be directly or indirectly attached to the body 12, and wherein the probe assembly 11 can be fixedly attached to the body 12, such as by snapping, bonding, screwing, etc. The probe assembly 11 may also be movably coupled to the body 12, such as by a rotational coupling, or the probe assembly 11 may move in a plane relative to the body 12, etc. The probe assembly 11 and the body 12 may also be removably connected to facilitate direct replacement of the probe assembly 11 when the probe assembly 11 needs servicing or replacement. The probe assembly 11 and the main body 12 may be connected by other connecting methods that may occur to those skilled in the art, and are not limited to the above connecting methods.
In one embodiment, the main body 12 includes a control unit, which may be a circuit board with control circuit, or other structure or circuit or combination of both that can perform control function. The control unit can be used for controlling the opening and closing of the handheld temperature probe 10, and is also electrically connected with the probe assembly 11, signals detected by the probe assembly 11 can be transmitted to the control unit, the control unit processes the signals, and then a temperature detection result is obtained, so that the temperature probe 10 realizes the temperature detection.
Referring to fig. 3, fig. 3 is a schematic structural diagram of the probe assembly 11 provided in the present application. In one embodiment, the probe assembly 11 includes a tube 111, a thermocouple 112, and a first thermally conductive material 113.
The tube 111 is a metal tube having a receiving cavity 1111 for protecting the thermocouple 112 from being damaged. The tube 111 may be made of a metal having a high thermal conductivity, such as platinum, aluminum, copper, nickel, iron, stainless steel, or an alloy thereof. In order to make the measured temperature more accurate, the wall thickness of the tube body 111 may be reduced, and the tube body 111 having a smaller inner diameter is used, thereby improving the hysteresis of the thermocouple 112. In the embodiment of fig. 3, the thickness of the tube wall of the tube body 111 is 0.2mm, but in other embodiments, the thickness may be other tube walls.
The thermocouple 112 may include a first thermally conductive wire 1121 and a second thermally conductive wire 1122 joined in a loop at both ends, and have a working end 113a (hot end) and a reference end (cold end) for the thermocouple 112. When a temperature difference exists between the working end 113a and the reference end, a thermoelectric potential is generated in the loop, and the reference end of the thermocouple 112 is electrically connected with the control power supply, so that the control unit can detect a temperature difference signal and obtain a temperature detection result by processing the temperature difference signal.
In addition, the thermocouple 112 may further include a first insulating sheath 1123 and a second insulating sheath 1124 fitted over the first heat-conductive wire 1121 and the second heat-conductive wire 1122, respectively, and the working end 113a and the reference end of the thermocouple 112 are disposed outside the first insulating sheath 1123 and the second insulating sheath 1124. By providing the first insulating cover 1123 and the second insulating cover 1124, the first insulating cover 1123 and the second insulating cover 1124 can prevent the first thermal wire 1121 and the second thermal wire 1122 from contacting with each other, and can prevent the first thermal wire 1121 and the second thermal wire 1122 from being damaged, thereby prolonging the service life of the thermocouple 112.
A portion of the thermocouple 112 is disposed in the receiving cavity 1111, a working end 113a of the thermocouple 112 is penetrated and fixedly disposed on the tube 111, and at least a portion of the working end 113a is exposed from the tube 111 so that the working end 113a can be used to detect temperature.
Specifically, the extending direction of the thermocouple 112 and the extending direction of the receiving cavity 1111 may be the same or substantially the same. The central axis of the thermocouple 112 may coincide or substantially coincide with the central axis of the receiving cavity 1111, or the central axis of the thermocouple 112 may be disposed offset from the central axis of the receiving cavity 1111.
In an embodiment, the thermocouple 112 is disposed in the accommodating cavity 1111 except for the working end 113a, specifically, the first insulating sheath 1123 and the second insulating sheath 1124 of the thermocouple 112 are disposed in the accommodating cavity 111, a portion of the first thermal conductive wire 1121, a portion of the second thermal conductive wire 1122, and the reference end are disposed in the accommodating cavity 111, the working end 113a is disposed on the tube 111 and penetrates through the tube 111, so that at least a portion of the working end 113a is exposed from the tube 111, and the reference end in the tube 111 can be electrically connected to the control unit by disposing a lead wire. In other embodiments, the manner of disposing the thermocouple 112 in the accommodating cavity 1111 is not limited to the above-mentioned structure, and may be other structures.
The fixing manner of the working end 113a of the thermocouple 112 and the tube 111 may be welding, bonding, and the like, and preferably, the working end 113a and the tube 111 are fixed by welding, and the stability of fixing the working end 113a and the tube 111 by welding is good, and the operation is convenient.
At least a part of the working end 113a is exposed from the tube 111, that is, the working end 113a may be partially exposed from the tube 111 and partially embedded in the wall of the tube 111; or a first part of the working end 113a is exposed out of the tube body 111, a second part is embedded in the tube wall of the tube body 111, and a third part is positioned in the accommodating cavity 1111; or the entire working end 113a is exposed from the tube 111. Here, the exposure may mean that at least a portion of the working end 113a is exposed from the tube 111 and does not protrude from the tube 111, or that at least a portion of the working end 113a protrudes from the tube 111 and is exposed.
Since the working end 221 of the conventional thermocouple 22 and the object to be measured (fig. 1) have at least the thickness of the tube body 21 and the distance of the heat conductive material 23 between the working end 221 of the thermocouple 22 and the object to be measured, even if the tube body 21 and the heat conductive material 23 are made of materials with high heat conductivity, the temperature between the working end 221 and the object to be measured cannot be delayed, so that the response time of the temperature probe 20 is long.
In the temperature probe 10 provided by the present application, the working end 113a of the thermocouple 112 exposed from the tube 111 can directly contact with the object to be measured, and compared with the existing structure in which the working end 113a indirectly contacts with the object to be measured, the response time of the temperature probe 10 is shorter, and the problem of temperature delay of the temperature probe 10 is effectively solved.
The first heat conduction material 113 is filled in the containing cavity 1111, and the first heat conduction material 113 at least covers the connection position of the working end 113a and the tube body 111. When the working end 113a is connected to the tube 111 by welding, the first heat conductive material 113 covers at least the welding point of the working end 113a and the tube 111.
Because the temperature of the air is slowly increased, especially the air which is not easy to flow in the tube 111 is a poor heat conductor, the first heat conduction material 113 covers the joint of the working tube and the tube 111, and can replace the air near the joint with the heat conduction material with good heat conductivity, so that the response time of the temperature probe 10 reaching the target temperature caused by the heat absorption of the air near the joint can be prevented from being prolonged, and the response time of the temperature probe 10 can be further reduced.
The first thermal conductive material 113 may be a material with a high thermal conductivity, such as thermal silicone grease or copper powder. Preferably, the thermal conductivity of the first thermal conductive material 113 is greater than that of the tube 111, and may be 10 times or more. The larger the thermal conductivity of the first thermal conductive material 113 is relative to the thermal conductivity of the pipe 111, the smaller the temperature difference between the inside and the outside of the pipe 111, and the shorter the response time.
It should be noted that, taking the way that the working end 113a of the thermocouple 112 is connected to the tube body 111 by welding as an example, when actually installing the probe assembly 11, the thermocouple 112 needs to be welded to the tube body 111 first, and then the first heat conduction material 113 is filled in the accommodating cavity 1111, but the thermocouple 112 and the tube body 111 cannot be welded after the first heat conduction material 113 is filled in the accommodating cavity 1111 first. This is because if pre-buried in the body with first heat conduction material 113, first heat conduction material 113 can cover the pipe wall that holds chamber 1111, and thermocouple 112 need insert in first heat conduction material 113 just can with body 111 contact welding, and the surface of the two when welding of thermocouple 112 and body 111 all remains first heat conduction material 113, can influence welding process's effect, causes the problem of welding failure.
After the thermocouple 112 is welded to the tube body, in some embodiments, the first thermal conductive material 113 may be directly injected into the receiving cavity 1111 by an injector, but the first thermal conductive material 113 is filled in such a way that the gap between the tube body 111 and the thermocouple 112 is larger than the outer diameter of the injection end of the injector, and the ratio of the gap distance between the tube body 111 and the thermocouple 112 to the outer diameter of the injection end is as large as possible, so that a larger operation space is provided for the injection end to insert into the gap for operating and injecting the first thermal conductive material 113. If the operating space of the injector is too narrow, it is not conducive to the operation of the operator, and may damage the thermocouple 112.
The ratio of the gap distance between the tube 111 and the thermocouple 112 to the outer diameter of the syringe is enlarged, and it is conceivable to implement with an enlarged tube diameter of the tube 111 or with a syringe of a small tube diameter. However, if a syringe with a small tube diameter is adopted, the viscous heat conduction material is difficult to extrude out of the syringe; if the tube diameter is enlarged, the hand-held temperature probe 10 cannot be designed to be more compact. At present, in order to more conveniently carry, take and store the handheld temperature probe 10, the lightness, thinness and miniaturization of the handheld temperature probe 10 are particularly important.
In order to make the inner diameter of the tube 111 thinner and to smoothly fill the first heat conducting material 113 in the presence of the thermocouple 112, the following technical solutions are provided in the present application to solve the above problems.
In some embodiments, referring to fig. 3, the receiving cavity 1111 includes a first cavity 1112 extending backward from a front end (left end as shown), i.e. an end near the working end 113a of the thermocouple 112 in the present application, and a rear end (reference end) near the thermocouple 112.
The thermocouple 112 is disposed through the first cavity 1112, the working end 113a of the thermocouple 112 penetrates through the cavity wall of the first cavity 1112, and the working end 113a of the thermocouple 112 is fixedly disposed on the cavity wall of the first cavity 1112. The radial clearance a between the thermocouple 112 and the wall of the first cavity 1112 is < 3mm, preferably a < 2mm, and in some embodiments 0.1 ≦ a ≦ 1mm, such as 0.2mm, 0.375mm, 0.7mm, 1mm, and so forth. I.e. the position of the first cavity 1112 can be determined by the radial clearance a < 3mm.
For example, in the embodiment of fig. 3, the radial gap a from the front end c to the position d of the accommodating cavity 1111 satisfies the condition of a < 3mm, and the radial gap a from the position d to the rear of the accommodating cavity 1111 does not satisfy the condition of a < 3mm, then the first cavity 1112 is a space from the position c to the position d of the accommodating cavity 1111.
By setting the radial gap a between the thermocouple 112 and the wall of the first cavity 1112 within a certain range, the volume of the handheld temperature probe 10 is smaller, which is beneficial to miniaturization of the handheld temperature probe 10.
It should be noted that a radial gap between the thermocouple 112 and the wall of the first cavity 1112 may be a radial gap between the outer wall of the first heat-conducting wire 1121 or the second heat-conducting wire 1122 and the wall of the first cavity 1112, or a radial gap between the outer wall of the insulating sleeve 1123 outside the heat-conducting wire and the wall of the first cavity 1112.
The shape of the first cavity 1112 may be a regular shape, such as a cylinder, prism, etc.; the shape of the first cavity 1112 may also be an irregular shape. In one embodiment, as shown in fig. 3, the first cavity 1112 comprises a first cavity 1112a and a second cavity 1112b, the first cavity 1112a is located at the front end of the first cavity 1112, the second cavity 1112b is located at the rear end of the first cavity 1112, and the first cavity 1112a and the second cavity 1112b are in communication. The second cavity 1112b is shaped like a cylinder, such as a cylinder, a prism, etc.; the first cavity 1112a is shaped as a cone or hemisphere. In the embodiment of FIG. 3, the second cavity 1112b is cylindrical in shape and the first cavity 1112a is conical in shape.
The working end 113a of the thermocouple 112 may be pierced through and fixedly disposed on the cavity wall at the apex of the first cavity 1112a, for example, in the embodiment of FIG. 3, the thermocouple 112 is pierced through the first and second cavities 1112a, 1112b, and the working end 113a of the thermocouple 112 is pierced through and fixedly disposed on the cavity wall at the apex of the first cavity 1112a of the cone. Of course, in some embodiments, the working end 113a of the thermocouple 112 can also penetrate and be fixedly disposed on the side wall of the first cavity 1112a, or the working end 113a of the thermocouple 112 can also penetrate and be fixedly disposed on the side wall of the second cavity 1112 b.
In other embodiments, the shape of the first cavity 1112 can be other shapes, and is not limited to the above-mentioned shapes.
In one embodiment, as shown in fig. 3, the containing chamber 1111 further includes a second chamber 1113 in addition to the first chamber 1112, the first chamber 1112 is communicated with the second chamber 1113, and the front end of the second chamber 1113 is connected to the rear end of the first chamber 1112.
The thermocouple 112 also passes through the second cavity 1113, and the radial gap b ≧ a between the thermocouple 112 and the cavity wall of the second cavity 1113, in some embodiments, b ≧ 3mm or b ≧ 2mm, b can be sized according to the size of a, or according to the fact that the heat-conducting material is in fact. In the embodiment of fig. 3, the second cavity 1113 is a space from the position d of the accommodating cavity 1111 to the rear end of the accommodating cavity 1111. The radial gap between the thermocouple 112 and the wall of the second cavity 1113 may be a radial gap between the outer wall of the first thermal conductive wire 1121 or the second thermal conductive wire 1122 and the wall of the second cavity 1113, or a radial gap between the outer wall of the insulating sleeve 1123 outside the thermal conductive wire and the wall of the second cavity 1113.
In one embodiment, the first heat conductive material 113 may be filled in the first cavity 1112 of the receiving cavity 1111 through a centrifugal process. Referring to fig. 3 and 4, the direction of the arrow in fig. 4 indicates the moving direction of the first heat conductive material 113 during centrifugation. After the thermocouple 112 and the first cavity 1112 are fixed, the first heat conducting material 113 can be injected into the second cavity 1113 with a larger radial gap b by an injector, and because the radial gap between the second cavity 1113 and the thermocouple 112 is larger, the injector with a larger pipe diameter can be selected to inject the first heat conducting material 113 into the second cavity 1113, so that the injector can operate in a larger space and with a smaller operation difficulty, and the influence on the thermocouple 112 in the operation process is smaller.
After the injector injects the first heat conductive material 113 into the second cavity 1113, the first heat conductive material 113 in the second cavity 1113 moves into the first cavity 1112 by centrifugal force through a centrifugal process, so that the first heat conductive material 113 covers at least a connection between the working end 113a of the thermocouple 112 and a tube wall of the first cavity 1112.
In actual operation, before the tube 111 is placed in a centrifuge for centrifugation, the injector is used to inject the first heat conducting material 113 into the second cavity 1113 of the accommodating cavity 1111, and then the tube 111 is placed in the centrifuge, after the rotation speed, time or power of the centrifuge is set, the centrifuge is started for centrifugation, and the first heat conducting material 113 moves from the second cavity 1113 to the first cavity 1112 in the centrifugation process, so that the first heat conducting material 113 is filled between the cavity wall of the first cavity 1112 and the thermocouple 22.
The first heat conduction material 113 is filled in the first cavity 1112 by adopting a centrifugal process, the first heat conduction material 1113 is filled in the first cavity 1112 by a centrifugal force, and a syringe does not need to extend into the first cavity 1112 for filling, so that the first heat conduction material 113 can be smoothly filled in the first cavity 1112 with a narrow caliber under the condition that the thermocouple 112 is welded in a pipe body; in addition, the centrifugal process is adopted to fill the first heat conduction material 113, so that the requirement on the size of the gap between the first cavity 1112 and the thermocouple 112 is small, and the inner diameter of the first cavity 1112 can be thinner (the range of the radial gap a is met), which is beneficial to the miniaturization of the handheld temperature probe 10.
In addition, the existing first heat conduction material 113 filled by using an injector has more bubbles, the injected surface is uneven, the surface of the first heat conduction material is often provided with a plurality of recesses or protrusions, the bubbles in the first heat conduction material 113 centrifuged by a centrifugal process are few or no bubbles, the first heat conduction material 113 is centrifuged in the accommodating cavity 1111 to form an inner arc or horizontal surface, and the surface is relatively flat, so that the heat conduction effect is better.
In some embodiments, when the viscosity of the first heat conductive material 113 is relatively high, for example, when the first heat conductive material 113 is heat conductive silicone, a portion of the first heat conductive material 113 in the second cavity 1113 is centrifuged into the first cavity 1112, and another portion of the first heat conductive material 113 in the second cavity 1113 remains on the wall of the second cavity 1113.
In some embodiments, it is also possible that the containing chamber 1111 only includes the first chamber 1112, and when the first heat conductive material 113 is filled, a centrifugal auxiliary tube is connected behind the first chamber 1112, and the shape and arrangement of the centrifugal auxiliary tube can refer to the arrangement of the second chamber 1113. The first heat conducting material 113 can be injected into the centrifugal auxiliary tube by using an injector, the tube body is placed into a centrifuge, the centrifuge is centrifuged after the rotation speed, time or power of the centrifuge is set, the first heat conducting material 113 moves into the first cavity 1112 from the centrifugal auxiliary tube, the centrifugal auxiliary tube is detached from the first cavity 1112 after the centrifuge is performed, and the first heat conducting material 113 can be centrifuged into the accommodating cavity 1111. This also allows for filling the first thermally conductive material 113 into the narrow bore first cavity 1112.
In some embodiments, a portion of the space between the wall of the first cavity 1112 and the thermocouple 112 may be filled with the first thermally conductive material 113, or all of the space between the wall of the first cavity 1112 and the thermocouple 112 may be filled with the first thermally conductive material 113.
Further, the first thermal conductive material 113 may fill a gap between the cavity wall of the first cavity 1112 and the thermocouple 112, for example, in the embodiment of fig. 3, the first thermal conductive material 113 fills a gap between the cavity wall of the first cavity 1112a and the thermocouple 112, and the first thermal conductive material 113 also fills a gap between the cavity wall of the second cavity 1112b and the thermocouple 112. In some embodiments, please refer to fig. 5, fig. 5 is a schematic structural diagram of a probe assembly 11 provided in the present application. The first thermal conductive material 113 may fill only a gap between the cavity wall of the first cavity 1112a and the thermocouple 112. In some embodiments, the first thermally conductive material 113 may fill a gap between the cavity wall of the first cavity 1112a and the thermocouple 112, and the first thermally conductive material 113 may also fill a portion of the gap between the cavity wall of the second cavity 1112b and the thermocouple 112. In some embodiments, the first thermally conductive material 113 covers at least the junction of the working end 113a of the thermocouple 112 and the wall of the first cavity 1112.
In some embodiments, please refer to fig. 6, fig. 6 is a schematic view of another structure provided in the present application. The probe assembly 11 further includes a second heat conductive material 114, the second heat conductive material 114 fills a gap between the wall of the second cavity 1113 and the thermocouple 112, and the second heat conductive material 114 is used for sealing the first heat conductive material 113. The second heat conducting material 114 can fill the gap between the wall of the second cavity 1113 and the thermocouple 112; for cost saving, the second thermal conductive material 114 may only fill the gap at the inlet of the second cavity 1113 connected to the first cavity 1112, as long as the first thermal conductive material 113 can be sealed. In the embodiment of fig. 6, the first thermally conductive material 113 is copper powder and the second thermally conductive material 114 is thermally conductive silicone grease. Copper powder can be filled into the first cavity 1112 in an oscillating manner, and the heat-conducting silicone grease can be filled into the second cavity 1113 in a centrifugal or syringe injection manner.
By providing the second thermally conductive material 114, the second thermally conductive material 114 may also displace air within the second cavity 1113, thereby reducing the response time of the temperature probe 10, and the second thermally conductive material 114 may seal the first thermally conductive material 113 within the first cavity 1112.
In some embodiments, the probe assembly 11 may further include a seal disposed in the second cavity 1113 for sealing the first thermally conductive material 113, i.e., in this embodiment, the seal may seal the first thermally conductive material 113 in place of the second thermally conductive material 114. Specifically, a sealing member may be sleeved on the insulating sleeve 1123 of the thermocouple 112 and disposed at the inlet of the second cavity 1113 connected to the first cavity 1112.
The present application further provides a hand-held temperature probe 10 for food cooking, the hand-held temperature probe 10 comprising a probe assembly 11. The probe assembly 11 includes a tube 111, a thermocouple 112, and a first thermally conductive material 113.
The tube 111 has a receiving cavity 1111, and a portion of the thermocouple 112 is disposed in the receiving cavity 1111, and specifically, at least a working end 113a of the thermocouple 112 is disposed in the receiving cavity. The thermocouple 112 may be fixed to the wall of the accommodating chamber 1111 (described above), or may not be fixed to the wall of the accommodating chamber 1111, which is described below as a solution in which the thermocouple 112 is not fixed to the wall of the accommodating chamber 1111.
The first heat conductive material 113 is filled in the containing cavity 1111 through a centrifugal process, and the first heat conductive material 113 covers at least the working end 113a of the thermocouple 112.
In order to realize a more compact temperature probe 10, the tube diameter of some temperature probe tubes 111 is narrow, and the tube diameter of the tube 111 is smaller than the outer diameter of the injection end of the syringe even though the thermocouple 112 is not first placed in the tube 111. In this case, it is difficult for the syringe to inject the viscous heat-conductive material from the syringe into the tube 111, limited by the tube diameter of the tube 111 and the outer diameter of the syringe.
In the present application, the first heat conduction material 113 is filled in the containing cavity 1111 through a centrifugal process, on one hand, the first heat conduction material 113 is not limited by the pipe diameter of the pipe body 111 and the outer diameter of the injection end of the injector, and can directly move into the containing cavity 1111 through a centrifugal force, thereby solving the problem that the miniaturized temperature probe 10 is difficult to be filled with heat conduction material; on the other hand, the first heat conduction material 113 filled in the injector has more bubbles and uneven surface, the surface of the first heat conduction material has a plurality of recesses or protrusions, the first heat conduction material 113 centrifuged by the centrifugal process has less or no bubbles, the first heat conduction material 113 centrifuged in the accommodating cavity 1111 can form an inner arc or horizontal surface, the surface is relatively flat, and the heat conduction effect is better.
It should be noted that, in the solution that the thermocouple 112 is not fixed on the wall of the accommodating cavity 1111, the first heat conductive material 113 may be first filled into the accommodating cavity 1111 through a centrifugal process, and then the thermocouple 112 is inserted into the accommodating cavity filled with the first heat conductive material 113; alternatively, the thermocouple 112 may be inserted into the accommodating cavity 1111 first, and then the first heat conducting material 113 may be filled into the accommodating cavity 1111 by using a centrifugal process.
Similar to the above solution in which the thermocouple 112 is fixed to the receiving cavity 1111, in order to facilitate filling the first heat conductive material 113 into the receiving cavity 1111 using a centrifugal process with the thermocouple 112 inserted into the receiving cavity 1111, in some embodiments, the receiving cavity 1111 includes a first cavity 1112 extending from the front end to the rear, the working end 113a of the thermocouple 112 is disposed in the first cavity 1112, a radial gap a between the thermocouple 112 and the cavity wall of the first cavity 1112 is less than 3mm, preferably, a is less than 2mm, in some embodiments, 0.1 a is less than 1mm, and may be, for example, 0.2mm, 0.375mm, 0.7mm, 1mm, etc. By setting the radial gap a between the thermocouple 112 and the wall of the first cavity 1112 within a certain range, the volume of the handheld temperature probe 10 is smaller, which is beneficial to miniaturization of the handheld temperature probe 10.
Further, in an embodiment, the containing chamber 1111 further includes a second chamber 1113 in addition to the first chamber 1112, the first chamber 1112 is communicated with the second chamber 1113, and a front end of the second chamber 1113 is connected to a rear end of the first chamber 1112. The thermocouple 112 also passes through the second cavity 1113, and the radial gap b ≧ a between the thermocouple 112 and the cavity wall of the second cavity 1113, in some embodiments, b ≧ 3mm or b ≧ 2mm, b can be sized according to the size of a, or according to the fact that the heat-conducting material is in fact. The definitions, shapes and possible embodiments of the first cavity 1112 and the second cavity 1113 can refer to the above descriptions, and are not repeated herein.
In the solution that the accommodating chamber 1111 has the second chamber 1113, because the pipe diameter of the second chamber 1113 is relatively large, the first heat conductive material 113 can be injected into the second chamber 1113 by using an injector, and then the first heat conductive material 113 in the second chamber 1113 can move into the first chamber 1112 by the centrifugal force through the centrifugal process, so that the first heat conductive material 113 at least covers the working end 113a of the thermocouple 112. By filling the first heat conductive material 1113 in this way, the first heat conductive material 1113 can be centrifuged from the second cavity 1113 with a wide bore to the first cavity 1112 with a narrow bore while the temperature probe 10 is miniaturized, thereby effectively reducing the response time of the temperature probe 10.
In some embodiments, when the viscosity of the first heat conductive material 113 is relatively high, for example, when the first heat conductive material 113 is thermal grease, a portion of the first heat conductive material 113 in the second cavity 1113 is centrifuged into the first cavity 1112, and another portion of the first heat conductive material 113 in the second cavity 1113 remains on the wall of the second cavity 1113.
The present invention has been described in terms of specific examples, which are provided to aid in understanding the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (14)
1. A hand-held temperature probe for food cooking, comprising a probe assembly, the probe assembly comprising:
a tube body having a receiving cavity;
a thermocouple, a part of which is arranged in the accommodating cavity, wherein the working end of the thermocouple is penetrated and fixedly arranged on the tube body, and at least a part of the working end is exposed out of the tube body for detecting the temperature;
and the first heat conduction material is filled in the accommodating cavity and at least covers the joint of the working end and the pipe body.
2. The hand-held temperature probe for food cooking of claim 1, wherein the first thermally conductive material is filled in the receiving cavity by a centrifugation process.
3. The handheld temperature probe for cooking food materials according to claim 1 or 2, wherein the accommodating cavity comprises a first cavity extending backwards from a front end of the accommodating cavity, the thermocouple penetrates through the first cavity, a working end of the thermocouple is arranged on a cavity wall of the first cavity in a penetrating and fixed mode, the first heat conduction material is filled between the cavity wall of the first cavity and the thermocouple, and a radial gap a between the thermocouple and the cavity wall of the first cavity is smaller than 3mm.
4. The hand-held temperature probe for food cooking of claim 3, wherein 0.1mm ≦ a ≦ 1mm.
5. The hand-held temperature probe for food cooking as claimed in claim 3, wherein the receiving cavity comprises a second cavity communicating with the first cavity, the thermocouple further passes through the second cavity, and a radial gap b ≧ a between the thermocouple and a cavity wall of the second cavity.
6. The hand-held temperature probe for food cooking of claim 5, wherein the first thermally conductive material is further provided on a wall of the second cavity.
7. The hand-held temperature probe for food cooking of claim 3, wherein the first thermally conductive material fills a gap between a cavity wall of the first cavity and the thermocouple.
8. The hand-held temperature probe for food cooking of claim 1, wherein the first thermally conductive material is a thermally conductive silicone grease or copper powder.
9. The hand-held temperature probe for food cooking of claim 5, wherein the probe assembly further comprises a second thermally conductive material filled between a cavity wall of the second cavity and the thermocouple, the second thermally conductive material for sealing the first thermally conductive material.
10. The hand-held temperature probe for food cooking of claim 9, wherein the first thermally conductive material is copper powder and the second thermally conductive material is thermally conductive silicone grease.
11. A hand-held temperature probe for food cooking, comprising a probe assembly, the probe assembly comprising:
a tube body having a receiving cavity;
the thermocouple is partially arranged in the accommodating cavity;
the first heat conduction material is filled in the accommodating cavity and at least covers the working end of the thermocouple;
the first heat conduction material is filled in the containing cavity through a centrifugal process.
12. The hand-held temperature probe for food cooking of claim 11, wherein the receiving cavity comprises a first cavity extending rearward from a front end thereof, a portion of the thermocouple is disposed in the first cavity, the first cavity is filled with the first heat conducting material by a centrifugal process, and a radial gap a between the thermocouple and a cavity wall of the first cavity is < 3mm.
13. The hand-held temperature probe for food cooking of claim 12, wherein the receiving cavity comprises a second cavity communicating with the first cavity, the thermocouple passes through the second cavity, and a radial gap b ≧ a between the thermocouple and a cavity wall of the second cavity.
14. The hand-held temperature probe for food cooking of claim 13, wherein the first thermally conductive material is further provided on a wall of the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/107012 WO2024119825A1 (en) | 2022-10-20 | 2023-07-12 | Handheld temperature probe used for food material cooking and fabricating method therefor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022227773770 | 2022-10-20 | ||
| CN202222777377 | 2022-10-20 |
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| CN115752788A true CN115752788A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211559422.3A Pending CN115752788A (en) | 2022-10-20 | 2022-12-06 | Handheld temperature probe for food cooking |
| CN202223297211.5U Active CN218916583U (en) | 2022-10-20 | 2022-12-06 | Handheld temperature probe for cooking food |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223297211.5U Active CN218916583U (en) | 2022-10-20 | 2022-12-06 | Handheld temperature probe for cooking food |
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| Country | Link |
|---|---|
| CN (2) | CN115752788A (en) |
| WO (1) | WO2024119825A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024119825A1 (en) * | 2022-10-20 | 2024-06-13 | 深圳市虎一科技有限公司 | Handheld temperature probe used for food material cooking and fabricating method therefor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174631A (en) * | 1978-01-09 | 1979-11-20 | Temp-Stik Corporation | Clinical thermometer with thermo-couple probe |
| CN100530886C (en) * | 2005-01-14 | 2009-08-19 | 艾默生网络能源系统有限公司 | Signal lightning protection circuit |
| CN101872968A (en) * | 2010-03-05 | 2010-10-27 | 杭州海康威视数字技术股份有限公司 | Protective circuit |
| US9188490B2 (en) * | 2013-03-12 | 2015-11-17 | Rosemount Inc. | Thermowell insert |
| CN106821017A (en) * | 2017-02-24 | 2017-06-13 | 广东美的厨房电器制造有限公司 | Temperature probe, cooking apparatus and method for heating and controlling |
| CN108344521B (en) * | 2018-03-14 | 2024-04-16 | 中国空气动力研究与发展中心超高速空气动力研究所 | Transient heat flow sensor |
| CN215493758U (en) * | 2021-06-29 | 2022-01-11 | 上海音特电子有限公司 | AMR protection circuit of intelligent electric meter |
| CN113745264B (en) * | 2021-08-19 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | Light-emitting substrate, backlight module and display panel |
| CN215677330U (en) * | 2021-09-14 | 2022-01-28 | 深圳市特普生科技有限公司 | Thermocouple type quick response temperature probe |
| CN217721022U (en) * | 2022-06-14 | 2022-11-01 | 重庆长安汽车股份有限公司 | Circuit for conducting emission and noise immunity optimization of power input end of automobile electronic component |
| CN115752788A (en) * | 2022-10-20 | 2023-03-07 | 深圳市虎一科技有限公司 | Handheld temperature probe for food cooking |
-
2022
- 2022-12-06 CN CN202211559422.3A patent/CN115752788A/en active Pending
- 2022-12-06 CN CN202223297211.5U patent/CN218916583U/en active Active
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2023
- 2023-07-12 WO PCT/CN2023/107012 patent/WO2024119825A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024119825A1 (en) * | 2022-10-20 | 2024-06-13 | 深圳市虎一科技有限公司 | Handheld temperature probe used for food material cooking and fabricating method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN218916583U (en) | 2023-04-25 |
| WO2024119825A1 (en) | 2024-06-13 |
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