Plug-in temperature probe

Abstract

A control circuit board of the plug-in temperature probe is movably arranged in a first cavity, and a connecting line of an auxiliary function unit penetrates through an insulating part and is fixedly connected with the insulating part. Meanwhile, the connecting circuit is fixedly connected with the control circuit board so as to limit the position of the control circuit board in the axial direction of the shell. The connecting line has certain deformability, so that the control circuit board has a certain adjusting space along the axial direction of the shell, a certain degree of assembly error can be allowed, and the failure possibility is further reduced. And the size of the cavity wall of the first cavity is matched with the size of the control circuit board, so that the control circuit board is prevented from rotating in the first cavity, and the control circuit board is prevented from being separated from the connecting circuit due to the rotating position.

Description

Technical Field

[0001] The present application relates to the field of food cooking, and in particular to an insertion temperature probe for detecting the temperature of food. Background Art

[0002] With the advancement of technology and the increasing requirements of people on the 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 the food and the temperature of the water used to heat the food. Therefore, a temperature detection device used in food cooking came into being.

[0003] Insertion temperature probe is a kind of temperature detection device that can be inserted into the food during cooking to detect the temperature of each part of the food. It is also called handheld temperature probe, handheld thermometer, food probe, etc. The insertion temperature probe has a control circuit board to control the electronic components therein. The control circuit board is fixed in the housing by screws or other means. This fixing method is hard fixing. This hard fixing method is prone to assembly deviation, which is easy to cause assembly interference failure, pad cracking failure and other problems. Utility Model Content

[0004] The present application provides an insertion temperature probe, which provides a new control circuit board arrangement method in the insertion temperature probe.

[0005] Based on the above purpose, an insertion temperature probe is provided in one embodiment of the present application, including:

[0006] A shell, the shell comprising an insulating member, the insulating member dividing an inner cavity of the shell into a first cavity and a second cavity;

[0007] at least one food temperature detection unit, the food temperature detection unit is used to detect the temperature of the target food, and is disposed in the first cavity;

[0008] A control circuit board, which is disposed in the first cavity and is electrically connected to the food temperature detection unit;

[0009] and an auxiliary function unit, the auxiliary function unit comprising an ambient temperature detection unit for detecting the ambient temperature of the cooking space and / or an antenna for wireless communication, the auxiliary function unit being disposed in the second cavity;

[0010] The connecting line of the auxiliary function unit passes through the insulating part and is fixedly connected to the insulating part; the control circuit board is movably arranged in the first cavity, and the connecting line is fixedly connected to the control circuit board to limit the axial position of the control circuit board in the shell, and the cavity wall size of the first cavity is adapted to the size of the control circuit board so as to prevent the control circuit board from rotating in the first cavity.

[0011] In one embodiment, the insulating member has a plurality of wiring holes, each of the connecting lines is correspondingly arranged in a wiring hole, and the wiring holes are insulated and separated by the cavity walls of the wiring holes.

[0012] In one embodiment, the hole wall of the wiring hole and the corresponding connecting line are sealed.

[0013] In one embodiment, a sealing member is provided on a side of the insulating member facing the second cavity, and the sealing member seals and separates the second cavity from the wiring hole. The connecting line passes through the sealing member and is inserted into the corresponding wiring hole.

[0014] In one embodiment, the auxiliary function unit includes the ambient temperature detection unit and the antenna, the ambient temperature detection unit and the antenna are arranged in the second cavity, and the connection line between the antenna and the ambient temperature detection unit is fixed into a whole by a fixing kit.

[0015] In one embodiment, it also includes a power supply, which is arranged in the first cavity and electrically connected to the control circuit board; in the axial direction of the shell, the power supply is arranged between at least one food temperature detection unit and the control circuit board, and the at least one food temperature detection unit is electrically connected to the control component through a connecting line, and the connecting line of the at least one food temperature detection unit is fixed on the power supply.

[0016] In one embodiment, the connecting line is fixed to the power supply by means of high temperature adhesive tape.

[0017] In one embodiment, the shell includes a first metal tube and a second metal tube, the insulating member has a first butt joint end, a second butt joint end and an intermediate protrusion located between the first butt joint end and the second butt joint end, the peripheral side surface of the first butt joint end and the intermediate protrusion form a first sunken butt joint surface, the first metal tube sealing sleeve is arranged on the first sunken butt joint surface, and together with the insulating member, forms the first cavity; the peripheral side surface of the second butt joint end and the intermediate protrusion form a second sunken butt joint surface, the second metal tube sealing sleeve is arranged on the second sunken butt joint surface, and together with the insulating member, forms at least a part of the second cavity.

[0018] In one embodiment, a sealing structure is provided between the first sunken docking surface and the inner wall of the first metal tube; a sealing structure is provided between the second sunken docking surface and the inner wall of the second metal tube; and the sealing structure includes at least two sealing methods.

[0019] In one embodiment, the shell includes a tail insulation kit, which is sleeved on the circumferential side surface of the second end of the second metal tube; the tail insulation kit has a plurality of multi-level step structures, and the plurality of step structures include a first step, a second step and a third step arranged along the axial direction of the shell, the first step and the circumferential side surface of the second end of the second metal tube form a sealing gap, and a sealing structure is arranged in the sealing gap; the second step is tightly fitted with the circumferential side surface of the second end of the second metal tube; the second end of the second metal tube has a plurality of notches arranged along the circumference of the second metal tube, and the third step is inserted into the corresponding notches to prevent the second metal tube and the tail insulation kit from rotating relative to each other.

[0020] According to the insertion temperature probe of the above embodiment, the control circuit board is movably arranged in the first cavity, and the connection line of the auxiliary function unit passes through the insulating member and is fixedly connected to the insulating member. At the same time, the connection line is fixedly connected to the control circuit board to limit the position of the control circuit board in the axial direction of the shell. The connection line has a certain degree of deformability, so the control circuit board has a certain adjustment space along the axial direction of the shell, which can allow a certain degree of assembly error, thereby reducing the possibility of failure. Moreover, the cavity wall size of the first cavity is adapted to the size of the control circuit board, so as to prevent the control circuit board from rotating in the first cavity and avoid the control circuit board from being separated from the connection line due to the rotation position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an appearance structure diagram of an insertion type temperature probe in one embodiment of the present application;

[0022] Figure 2 This is an axial cross-sectional view of an insertion temperature probe in one embodiment of the present application;

[0023] Figure 3 and 4 This is a schematic diagram of the internal structure of an insertion temperature probe in one embodiment of the present application after a portion of the shell is removed;

[0024] Figure 5 This is a cross-sectional view of the housing structure of an insertion temperature probe in one embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of a positive electrode circuit, a negative electrode circuit and an antenna passing through an insulating member in an embodiment of the present application;

[0026] Figure 7 A cross-sectional view of the matching structure of the first thermally conductive and electrically conductive member and the second thermally conductive and electrically conductive member and the insulating member in one embodiment of the present application;

[0027] Figure 8 This is an exploded view of various parts of the housing in one embodiment of the present application;

[0028] Fig. 9 This is a schematic diagram of the dimensions of a control circuit board and a first metal tube in one embodiment of the present application;

[0029] Fig.10 This is a schematic diagram of the multi-step structure of the tail insulation kit in one embodiment of the present application. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, 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 part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0031] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0032] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0033] The present application provides an insertion temperature probe, which can be inserted into food when the food is being cooked or after cooking to detect the temperature inside the food.

[0034] Specifically, the insertion temperature probe can be inserted into the food during the cooking process to detect the temperature inside the food, especially to obtain the lowest temperature inside the food as accurately as possible. The food can be in any cooking space, including but not limited to: steaming, boiling, baking, roasting, frying, deep-frying, etc. or heat-treated by any other means.

[0035] Please refer to Figure 1-4 In some embodiments, the insertable temperature probe includes a housing 100, a control assembly 200, and an ambient temperature detection unit 300. Of course, when necessary, the temperature probe may also include other related components, which may refer to the temperature probe in the prior art.

[0036] The housing 100 is used to protect and install components that realize the probe function (such as the ambient temperature detection unit 300, the food temperature detection unit 400 and / or other electronic components, etc.). The housing 100 includes a first heat-conductive conductive member 110, an insulating member 120 and a second heat-conductive conductive member 130. The first heat-conductive conductive member 110 and the second heat-conductive conductive member 130 are insulated and separated by the insulating member 120 to prevent a short circuit between the first heat-conductive conductive member 110 and the second heat-conductive conductive member 130. The insulating member 120 can be made of insulating ceramic or other insulating materials. The first heat-conductive conductive member 110 and the second heat-conductive conductive member 130 can be made of various existing materials that can conduct electricity and heat and can be used in a cooking environment, such as metal materials or other materials. The control component 200 is arranged in the housing 100, and the control component 200 is used to realize the control of some or all functions of the probe, such as the control of the ambient temperature detection unit 300, the control of charging, and the control of the food temperature detection unit 400 described later. The control component 200 may adopt, but is not limited to, a control circuit board 210 having various functional circuits.

[0037] Please refer to Figure 2-4 The ambient temperature detection unit 300 is used to detect the ambient temperature of the cooking space and is disposed in the housing 100. The ambient temperature detection unit 300 is electrically connected to the control component 200 through a positive line 310 and a negative line 320 to transmit the detected signal to the control component 200.

[0038] During the cooking process, the temperature of the cooking space is usually much higher than the temperature inside the food (for example, the temperature in the oven can reach over 200°C, the temperature in the BBQ oven can reach over 500°C, etc.). Therefore, in some embodiments, the ambient temperature detection unit 300 may adopt a temperature detection unit that can operate at a higher temperature. For example, the ambient temperature detection unit 300 may adopt but is not limited to a thermocouple or other high temperature resistant temperature detection units.

[0039] The control component 200 has a charging circuit (not shown in the figure), which is used to charge the rechargeable battery. The charging circuit has a positive terminal and a negative terminal. In order to electrically connect the charging circuit to an external charging device to achieve charging, in some embodiments, one of the positive terminal and the negative terminal is electrically connected to the first thermally conductive conductive member 110, and the other is electrically connected to the second thermally conductive conductive member 130 through the positive line 310 and / or the negative line 320, so that the inserted temperature probe can be charged through the first thermally conductive conductive member 110 and the second thermally conductive conductive member 130. That is, the first thermally conductive conductive member 110 and the second thermally conductive conductive member 130 are charged as two contacts of the charging circuit and are electrically connected to the external charging device.

[0040] In the above embodiment, at least one of the positive line 310 and the negative line 320 of the ambient temperature detection unit 300 is used as a positive or negative charging connection line, and there is no need to set up a separate positive or negative charging connection line, which simplifies the internal structure of the probe and is conducive to the miniaturization design of the probe.

[0041] Please refer to Figure 5 In some more specific embodiments, the insulating member 120 divides the inner cavity of the housing 100 into a first cavity 101 and a second cavity 102. A portion of the cavity wall of the first cavity 101 is a first thermally conductive and electrically conductive member 110, which may be, but not limited to, the first thermally conductive and electrically conductive member 110 and the insulating member 120 or other more components to form the first cavity 101. A portion of the cavity wall of the second cavity 102 is a second thermally conductive and electrically conductive member 130, which may be, but not limited to, the second thermally conductive and electrically conductive member 130 and the insulating member 120 or other more components to form the second cavity 102. The first thermally conductive and electrically conductive member 110 and the second thermally conductive and electrically conductive member 130 may be Figure 8 The tubular structure shown may also be a non-tubular structure in other embodiments, such as a block structure.

[0042] Please refer to Figure 2-5 In some more specific embodiments, the insertion temperature probe further includes at least one food temperature detection unit 400, which is used to detect the temperature of the target food and is disposed in the first cavity 101. The control component 200 is disposed in the first cavity 101 and is electrically connected to the food temperature detection unit 400. In addition to serving as the positive charging contact or the negative charging contact of the charging circuit, the first thermally conductive and electrically conductive member 110 can also serve as a heat-conducting structure of the food temperature detection unit 400 to transfer the temperature of the food to the food temperature detection unit 400. Of course, in other embodiments, a heat-conducting structure may also be provided on the first cavity 101, and the temperature of the food is mainly transferred to the food temperature detection unit 400 through the heat-conducting structure.

[0043] The environment temperature detection unit 300 is disposed in the second cavity 102. In addition to serving as a positive charging contact or a negative charging contact of the charging circuit, the second heat-conductive and electrically conductive member 130 can also serve as a heat-conducting structure of the environment temperature detection unit 300 to conduct the temperature of the cooking space to the environment temperature detection unit 300. Of course, in other embodiments, a heat-conducting structure can also be provided on the second cavity 102, and the temperature of the cooking space is mainly conducted to the environment temperature detection unit 300 through the heat-conducting structure.

[0044] Further, the positive line 310 and / or the negative line 320 can be electrically connected to the second heat-conductive and conductive member 130 by any electrical connection method. In some embodiments, the positive line 310 and / or the negative line 320 are electrically connected to the second heat-conductive and conductive member 130 through a conductive member. The conductive member can be made of various conductive materials, such as metal members. The conductive member can also be of various shapes and structures, as long as it can realize the conductive connection between the positive line 310 and / or the negative line 320 and the second heat-conductive and conductive member 130 through the conductive member.

[0045] Please refer to Figure 3 In some more specific embodiments, the positive line 310 is wrapped with a conductive member 330 that is in contact with and fixed to the second heat-conductive conductive member 130, and / or the negative line 320 is wrapped with a conductive member 330 that is in contact with and fixed to the second heat-conductive conductive member 130. The conductive member 330 is directly in contact with and fixed to the second heat-conductive conductive member 130. When the positive line 310 and / or the negative line 320 are connected to the second heat-conductive conductive member 130, the positive line 310 and / or the negative line 320 are also fixed and limited, and the positive line 310 and / or the negative line 320 are fixed to the second heat-conductive conductive member 130, thereby positioning the ambient temperature detection unit 300. At the same time, the conductive member 330 is wrapped around the corresponding positive line 310 or negative line 320. This wrapping structure can prevent the positive line 310 or negative line 320 from being separated from the conductive member 330, so as to ensure that the positive line 310 or negative line 320 and the conductive member 330 maintain a stable electrical connection. Moreover, the part where the positive line 310 or negative line 320 contacts the conductive member 330 needs to expose the metal wire. At this time, the conductive member 330 wraps the metal wire at this part to form protection, so as to prevent other structures from damaging the metal wire and affecting the conduction effect of the metal wire.

[0046] More specifically, in some embodiments, the conductive member 330 is fixed to the second thermally conductive member 130 by welding. Of course, other methods of fixing may also be used, such as conductive bonding, clamping, etc.

[0047] The conductive member 330 is a flat ring structure, and the positive line 310 is provided with the flat ring structure, and / or the negative line 320 is provided with the flat ring structure. The flat ring structure presses and fixes the positive line 310 or the negative line 320. Figure 3 In some embodiments, the initial state of the flat ring structure can be a cylindrical structure. After the positive line 310 or the negative line 320 passes through the cylindrical structure, the cylindrical structure is flattened to obtain a flat ring structure that is tightly fixed to the positive line 310 or the negative line 320.

[0048] In addition, in addition to achieving conductive connection and fixation through the conductive member 330, in some embodiments, the positive line 310 and / or the negative line 320 can also be directly welded to the second thermal conductive member 130, so that the positive line 310 and / or the negative line 320 are directly electrically connected to the second thermal conductive member 130, and at the same time, the positive line 310 and / or the negative line 320 are fixedly positioned on the second thermal conductive member 130.

[0049] Further, in some embodiments, please refer to Figure 1 , the insertion end of the housing 100 is the front end of the entire probe (the lower end shown in the figure), and the end opposite to the front end is the rear end (the upper end shown in the figure). The housing 100 has a safety indicator line 103, which divides the housing 100 into an insertion area (also called a safety area) and an exposed area (also called a high temperature resistant area) in the axial direction of the housing 100. The area from the front end of the housing 100 to the safety indicator line 103 is the insertion area, and the first cavity 101 can be located in the insertion area, so that the food temperature detection unit 400, the control component 200 and other components that are not resistant to high temperatures are arranged within the range of the insertion area. The insertion area is designed to allow the entire probe to be inserted into the food when in use, and the temperature in the food is lower than that in the external cooking space, which can prevent the high temperature in the cooking space (for example, an oven above 200°C, a BBQ oven above 500°C, etc.) from damaging the electronic components of the temperature probe. In addition, the safety indicator line 103 can also prevent the front end of the housing 100 from being damaged due to the temperature probe entering too deep into the object to be measured, and avoid burns to the operator. The area from the safety indication line 103 to the rear end of the housing 100 is an exposed area, which is designed to be exposed to the cooking space, that is, the structure in the exposed area is configured to withstand the high temperature environment in the cooking space. At least a portion of the second cavity 102 is disposed in the exposed area so that the ambient temperature detection unit 300 therein can be located in the exposed area to better detect the ambient temperature of the cooking space.

[0050] In some embodiments, the electrical connection point between the positive line 310 and / or the negative line 320 and the second thermally conductive conductive member 130 is located in the exposed area, so that the temperature in the cooking space can be more accurately transferred from the second thermally conductive conductive member 130 along the positive line 310 and / or the negative line 320 to the ambient temperature detection unit 300, thereby obtaining a more accurate ambient temperature.

[0051] Furthermore, the probe can be inserted into food for use, and the inserted portion is usually required to cover or exceed the safety indication line 103. Therefore, the portion of the exposed area close to the safety indication line 103 may be inserted into the food. Or even if it is not inserted into the food, due to its proximity to the food, the temperature around this portion may be affected by the temperature of the food and deviate greatly from the maximum temperature of the cooking space. Therefore, in some embodiments, the electrical connection point between the positive line 310 and / or the negative line 320 and the second thermally conductive and electrically conductive member 130 can be set as far away from the safety indication line 103 as possible. Therefore, in some embodiments, in the axial direction of the shell 100, the end of the second thermally conductive conductive member 130 close to the insulating member 120 is the first end, and the end away from the insulating member 120 is the second end, and the axial distance from the electrical connection point between the positive line 310 and / or the negative line 320 and the second thermally conductive conductive member 130 to the first end is greater than the axial distance from the electrical connection point between the positive line 310 and / or the negative line 320 and the second thermally conductive conductive member 130 to the second end, so as to ensure that the ambient temperature detection unit 300 can measure the ambient temperature of the cooking space more accurately.

[0052] Further, in some embodiments, please refer to Figure 3 and 4 The control component 200 has a communication unit (not shown in the figure) and an antenna 500 . The antenna 500 is electrically connected to the communication unit and extends into the second cavity 102 .

[0053] Of course, in other embodiments, one of the positive line 310 and the negative line 320 can connect the second heat-conductive and conductive member 130 to the charging circuit, and the other can be connected to the communication unit to serve as the antenna 500 of the communication unit. That is, in this embodiment, the positive line 310 or the negative line 320 can also have the antenna function to complete the wireless communication between the communication unit and the external device. This structure can further simplify the internal structure of the probe, which is more conducive to the miniaturization design of the overall volume of the probe.

[0054] Furthermore, in some embodiments, the connection lines in the ambient temperature detection unit 300 and the antenna 500 (collectively referred to as the auxiliary function unit) pass through the insulating member 120 to be connected to the control component 200 located in the first cavity 101. Of course, in other embodiments, the connection lines in the ambient temperature detection unit 300 and the antenna 500 (collectively referred to as the auxiliary function unit) may also extend from the peripheral side of the insulating member 120 into the first cavity 101.

[0055] Please refer to Figure 6 and 7 In some embodiments, the antenna 500 is separately provided with the positive line 310 or the negative line 320 of the ambient temperature detection unit 300. The insulating member 120 is provided with a plurality of wiring holes 121 connecting the first cavity 101 and the second cavity 102. The positive line 310, the negative line 320 and the antenna 500 respectively pass through and are sealed and fixed in the corresponding wiring holes 121. The positive line 310, the negative line 320 and the antenna 500 are insulated and separated by the hole wall of the wiring hole 121. In this embodiment, the positive line 310, the negative line 320 and the antenna 500 are separately arranged in the corresponding wiring holes 121, and the material of the insulating member 120 itself can form insulation isolation for the positive line 310 and the negative line 320. In this way, the part of the positive line 310, the negative line 320 and the antenna 500 located in the insulating member 120 can be exempted from the sleeve with an insulating function, and the metal wire can be directly passed through the wiring hole 121, which not only saves materials but also reduces the wire diameter of the part of the positive line 310, the negative line 320 and the antenna 500 located in the wiring hole 121, thereby reducing the aperture of the wiring hole 121, which is beneficial to reducing the radial size of the insulating member 120, and further beneficial to reducing the radial size of the entire probe.

[0056] Specifically, please refer to Figure 6 and 7 In some embodiments, there are three wiring holes 121, and the positive line 310, the negative line 320 and the antenna 500 are separately arranged in one wiring hole 121. Of course, when the auxiliary function unit also includes electronic components with other functions, the connection lines of these electronic components can also pass through the insulating member 120 to be connected with the control component 200. Correspondingly, more wiring holes 121 can also be set on the insulating member 120 for other connection lines to ensure that the wiring holes 121 correspond to each connection line one by one.

[0057] In addition, when the function of the antenna 500 is integrated into the positive line 310 or the negative line 320 in some embodiments, the insulating member 120 is provided with a plurality of routing holes 121 connecting the first cavity 101 and the second cavity 102. The positive line 310 and the negative line 320 respectively pass through the corresponding routing holes 121 and are sealed and fixed to the insulating member 120. The positive line 310 and the negative line 320 are insulated and separated by the hole walls of the routing holes 121.

[0058] In order to prevent liquid from flowing into the first cavity 101 from the wiring hole 121 of the insulating member 120, in some embodiments, a seal is formed between each connecting line and the wiring hole 121. Of course, the sealing method includes sealing between the hole wall of the wiring hole 121 and the corresponding connecting line, and the seal can adopt any structure that can achieve sealing and liquid-proof, such as but not limited to glue (liquid, liquid solidified into solid, solid solution), soft solid (silicone, TPU, etc.). In other embodiments, please refer to Figure 7 and 8 The sealing method may also include providing a sealing member 122 on the side of the insulating member 120 facing the second cavity 102, the sealing member 122 sealing and separating the second cavity 102 from the wiring hole 121, the connection line passing through the sealing member 122 in a sealed manner, and inserting the positive line 310 in the corresponding wiring hole 121. The sealing method between the sealing member 122 and the connection line and between the sealing member 122 and the insulating member 120 may adopt any structure that can achieve sealing and liquid-proof, such as but not limited to glue (liquid, liquid solidified into solid, solid solution), soft solid (silicone, TPU, etc.).

[0059] Furthermore, since the probe is often inserted into liquid for use, there are certain requirements for the waterproof performance of the housing 100. Figure 7 and 8In some embodiments, the first heat-conducting and electrically conductive member 110 is a first metal tube 110, and the second heat-conducting and electrically conductive member 130 is a second metal tube 130 (of course, in some other embodiments, the second heat-conducting and electrically conductive member 130 may also include a portion other than the second metal tube 130). In order to improve the waterproof performance of the housing 100, the insulating member 120 has a first docking end 124, a second docking end 125, and a middle protrusion 123 located between the first docking end 124 and the second docking end 125. The peripheral side surface of the first docking end 124 and the middle protrusion 123 form a first sunken docking surface 1261. The first metal tube 110 is sealed and sleeved on the first sunken docking surface 1261. The peripheral side surface of the second docking end 125 and the middle protrusion 123 form a second sunken docking surface 1262. The second metal tube 130 is sealed and sleeved on the second sunken docking surface 1262. The first sunken docking surface 1261 and the second sunken docking surface 1262 can increase the sealing area between the first docking end 124 and the first metal tube 110 and between the second docking end 125 and the second metal tube 130, which not only increases the sealing area but also enables two or more sealing methods to be set simultaneously with the larger sealing area.

[0060] Please refer to Figure 7 In some embodiments, a sealing structure is provided between the first sunken docking surface 1261 and the inner wall of the first metal tube 110; a sealing structure is provided between the second sunken docking surface 1262 and the inner wall of the second metal tube 130. The sealing structure includes at least two sealing methods to increase the sealing effect.

[0061] More specifically, please refer to 7. In some embodiments, the sealing structure includes fixing the first metal tube 110 to the first sunken docking surface 1261 and sealing and fixing the second docking end 125 to the second sunken docking surface 1262 by means of glue. The sealing structure also includes providing a sealing ring 1263 or other sealing members between the first metal tube 110 and the first sunken docking surface 1261 and between the second docking end 125 and the second sunken docking surface 1262.

[0062] More specifically, please refer to Figure 7 and 8 In some embodiments, the cross-sections of the first sunken docking surface 1261 and the second sunken docking surface 1262 are sloped to increase the sealing area. In other embodiments, the cross-sections of the first sunken docking surface 1261 and the second sunken docking surface 1262 may also be, but not limited to, stepped, wavy, or broken line-shaped.

[0063] Furthermore, in some embodiments, the safety indication line 103 may be a line or a concave-convex three-dimensional engraved line with a surface color obviously different from other areas of the housing 100, for indicating to the user the depth of the probe inserted into the object to be measured (eg, food).

[0064] More specifically, please refer to Figure 1 and 8 In some embodiments, the peripheral side surface of the middle raised portion 123 of the insulating member 120 forms the safety indication line 103. By using the structure of the insulating member 120 to form the safety indication line 103, there is no need to perform additional surface treatment to mark the safety indication line 103, which can simplify the processing process and reduce the manufacturing cost.

[0065] Further, in order to enclose and form the first cavity 101, please refer to Figure 5 In some embodiments, the first metal tube 110 and the first butt end 124 of the insulating member 120 are sealed and butt-jointed to form a first cavity 101. Of course, in other embodiments, the first cavity 101 in the housing 100 can be implemented by other existing structures.

[0066] Furthermore, the control assembly 200 includes a control circuit board 210, which can be fixedly installed in the first cavity 101 by screws or other methods, and this fixing method is hard fixing. This hard fixing method is prone to assembly deviation, which can easily lead to assembly interference failure, pad cracking failure and other problems.

[0067] In this regard, please refer to some embodiments of this application. Figure 3 and 4 The positive line 310, the negative line 320 and the antenna 500 (the function of the antenna 500 can also be combined with the positive line 310 or the negative line 320) pass through the insulating member 120 and are fixedly connected to the insulating member 120. The control circuit board 210 is movably arranged in the first cavity 101, and one end of the positive line 310, the negative line 320 and the antenna 500 extending into the first cavity 101 is fixedly connected to the control circuit board 210 to limit the position of the control circuit board 210 in the axial direction of the housing 100. For example, the fixing effect can be increased by welding and glue fixing. The positive circuit 310, the negative circuit 320 and the antenna 500 are fixed to the insulating member 120 or the second heat-conductive and electrically conductive member 130, so their positions in the axial direction of the housing 100 are fixed, and the position of the control circuit board 210 along the axial direction of the housing 100 can be controlled within a certain range. In addition, the positive circuit 310, the negative circuit 320 and the antenna 500 have a certain degree of deformability, so the control circuit board 210 has a certain adjustment space along the axial direction of the housing 100, which can allow a certain degree of assembly error, thereby reducing the possibility of failure.

[0068] In order to prevent the control circuit board 210 from rotating or moving too much in the axial direction in the first cavity 101, please refer to Fig. 9In some embodiments, the size of the cavity wall of the first metal tube 110 is adapted to the size of the control circuit board 210 so as to prevent the control circuit board 210 from rotating in the first metal tube 110. The adaptation means that the size of the area in the first metal tube 110 where the control circuit board 210 is arranged and the size of the control circuit board 210 only have a normal assembly gap, and the assembly gap is extremely small, so that the control circuit board 210 cannot rotate in the first metal tube 110. Moreover, although there is an assembly gap between the first metal tube 110 and the control circuit board 210, due to the extremely small assembly gap, the control circuit board 210 is only allowed to be inserted into the first metal tube 110 according to a specific assembly direction. Therefore, even if the control circuit board 210 has some movement along the axial direction of the housing 100, it is almost impossible to move completely in the assembly direction because these movements are in random directions. Therefore, the first metal tube 110 can also form a certain limit effect on the control circuit board 210 in the axial direction to prevent the control circuit board 210 from moving too much in the axial direction and causing it to be separated from the connection line.

[0069] On the other hand, please refer to Figure 5 and 8 In some embodiments, the housing 100 includes a rear insulation kit 140, and the second metal tube 130, the rear insulation kit 140 and the insulation member 120 may enclose a second cavity 102. Of course, in other embodiments, the second cavity 102 may also be enclosed by an existing structure or other structures.

[0070] Please refer to Figure 5 and 8 In some embodiments, the end of the second metal tube 130 facing away from the insulating member 120 is the second end, and the tail insulation sleeve 140 is sleeved on the peripheral side surface of the second end of the second metal tube 130 .

[0071] Please refer to Figure 5 and 10 In some embodiments, in order to improve the sealing effect and prevent rotation, the tail insulation kit 140 has a plurality of multi-level step structures 141, and the plurality of step structures at least include a first step 1411, a second step 1412, and a third step 1413 arranged along the axial direction of the housing 100. The first step 1411 forms a sealing gap with the peripheral side surface of the second end of the second metal tube 130, and a sealing structure is arranged in the sealing gap. The sealing structure may be made of, but not limited to, glue (liquid, liquid solidified into solid, solid solution), soft solid (silicone, TPU, etc.). The second step 1412 is tightly matched with the peripheral side surface of the second end of the second metal tube 130 to increase the limiting and sealing effects by a tight fit, and at the same time, the coaxiality of the second metal tube 130 and the tail insulation kit 140 can be ensured.

[0072] Please refer to Figure 5 ,8 In some embodiments, in order to prevent rotation, the second end of the second metal tube 130 has a plurality of notches 131 arranged along the circumference of the second metal tube 130, and the third step 1413 is inserted into the corresponding notches 131 to prevent the second metal tube 130 and the tail insulation kit 140 from rotating relative to each other.

[0073] Of course, in other embodiments, the first step 1411, the second step 1412, and the third step 1413 may also be selected as part thereof according to different requirements. For example, in some embodiments, the plurality of step structures include the first step 1411 and the third step 1413, or include the second step 1412 and the third step 1413, or include the first step 1411 and the second step 1412.

[0074] Further, in some embodiments, please refer to Figure 3 , further comprising a rechargeable battery 600, which is disposed in the first cavity 101 and is electrically connected to the control assembly 200. In the axial direction of the housing 100, the rechargeable battery 600 is disposed between at least one food temperature detection unit 400 (for example, the food temperature detection unit 400 at the front end) and the control assembly 200. The at least one food temperature detection unit 400 is electrically connected to the control assembly 200 via a connecting line 610, and the connecting line 610 is fixed to the rechargeable battery 600. In this embodiment, the food temperature detection unit 400 is fixed by using the rechargeable battery 600, and there is no need to set up a fixing seat for the food temperature detection unit 400 separately, which can simplify the internal structure, not only reducing the cost, but also facilitating the miniaturization design of the probe.

[0075] Further, in some embodiments, please refer to Figure 3 The connection line 610 is fixed to the rechargeable battery 600 by means of a high temperature tape 700. In this embodiment, the high temperature tape 700 can be made very thin, for example, only 0.04 mm, which can greatly compress the space. Moreover, the high temperature tape 700 is a consumable material with low cost, and no additional structural parts that need to be molded are required, thereby reducing the material cost and mold cost.

[0076] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. An insertion temperature probe, characterized in that: include: A shell, the shell comprising an insulating member, the insulating member dividing an inner cavity of the shell into a first cavity and a second cavity; at least one food temperature detection unit, the food temperature detection unit is used to detect the temperature of the target food, and is disposed in the first cavity; A control circuit board, which is disposed in the first cavity and is electrically connected to the food temperature detection unit; and an auxiliary function unit, the auxiliary function unit comprising an ambient temperature detection unit for detecting the ambient temperature of the cooking space and / or an antenna for wireless communication, the auxiliary function unit being disposed in the second cavity; The connecting line of the auxiliary function unit passes through the insulating part and is fixedly connected to the insulating part; the control circuit board is movably arranged in the first cavity, and the connecting line is fixedly connected to the control circuit board to limit the axial position of the control circuit board in the shell, and the cavity wall size of the first cavity is adapted to the size of the control circuit board so as to prevent the control circuit board from rotating in the first cavity.

2. The insertion temperature probe according to claim 1, characterized in that: The insulating member has a plurality of wiring holes, each of the connecting lines is correspondingly arranged in a wiring hole, and the wiring holes are insulated and separated by the cavity walls of the wiring holes.

3. The insertion temperature probe according to claim 2, characterized in that: The hole wall of the wiring hole and the corresponding connecting line are sealed.

4. The insertion temperature probe according to claim 2, characterized in that: A sealing member is provided on a side of the insulating member facing the second cavity, and the sealing member seals and separates the second cavity from the wiring hole. The connecting line passes through the sealing member in a sealed manner and is inserted into the corresponding wiring hole.

5. The insertion temperature probe according to claim 1, characterized in that: The auxiliary function unit includes the ambient temperature detection unit and the antenna, the ambient temperature detection unit and the antenna are arranged in the second cavity, and the connection line between the antenna and the ambient temperature detection unit is fixed into a whole by a fixing kit.

6. The insertion temperature probe according to claim 1, characterized in that: It also includes a power supply, which is arranged in the first cavity and electrically connected to the control circuit board; in the axial direction of the shell, the power supply is arranged between at least one food temperature detection unit and the control circuit board, and the at least one food temperature detection unit is electrically connected to the control circuit board through a connecting line, and the connecting line of the at least one food temperature detection unit is fixed on the power supply.

7. The insertion temperature probe according to claim 6, characterized in that: The connecting line is fixed to the power supply by means of high temperature adhesive tape.

8. The insertion temperature probe according to any one of claims 1 to 7, characterized in that: The shell includes a first metal tube and a second metal tube, the insulating member has a first butt joint end, a second butt joint end and a middle protrusion located between the first butt joint end and the second butt joint end, the peripheral side surface of the first butt joint end and the middle protrusion form a first sunken butt joint surface, the first metal tube sealing sleeve is arranged on the first sunken butt joint surface, and forms the first cavity with the insulating member; the peripheral side surface of the second butt joint end and the middle protrusion form a second sunken butt joint surface, the second metal tube sealing sleeve is arranged on the second sunken butt joint surface, and forms at least a part of the second cavity with the insulating member.

9. The insertion temperature probe according to claim 8, characterized in that A sealing structure is provided between the first sunken docking surface and the inner wall of the first metal tube; a sealing structure is provided between the second sunken docking surface and the inner wall of the second metal tube; the sealing structure includes at least two sealing methods.

10. The insertion temperature probe according to claim 8, characterized in that The shell includes a tail insulation kit, which is sleeved on the circumferential side surface of the second end of the second metal tube; the tail insulation kit has a plurality of multi-step step structures, and the multi-step step structure includes a first step, a second step and a third step arranged along the axial direction of the shell, the first step and the circumferential side surface of the second end of the second metal tube form a sealing gap, and a sealing structure is arranged in the sealing gap; the second step is tightly matched with the circumferential side surface of the second end of the second metal tube; the second end of the second metal tube has a plurality of notches arranged along the circumference of the second metal tube, and the third step is inserted into the corresponding notches to prevent the second metal tube and the tail insulation kit from rotating relative to each other.

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