Rapid temperature sensing probe

Abstract

The utility model discloses a rapid temperature sensing probe comprising a temperature conduction cap which comprises a connecting part and a supporting part, and the connecting part is of a tubular structure with openings at the two ends; the supporting part is arranged on the outer edge of the top of the connecting part, and a convex ring is arranged on the bottom surface of the supporting part; the metal shell wraps the top of the supporting part and seals the opening in the top end of the connecting part; the connecting buckle comprises a buckle body part and a limiting part, the buckle body part is of a tubular structure with openings in the two ends, and the limiting part is arranged on the outer wall of the buckle body part; the upper end of the buckle body part and the lower end of the connecting part are mutually inserted, buckled and fixed; the temperature sensing element is arranged in the connecting part, the temperature sensing element abuts against the top wall of the connecting part, and the connecting part is filled with temperature-resistant glue. The temperature measuring device has the advantages of accurate temperature measurement, abundant material selection of the temperature conducting cap and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic cooking utensil temperature detection technical field, especially a kind of quick temperature sensing probe. BACKGROUND

[0002] Since electromagnetic heating technology is applied to cooking industry, temperature control has been a big problem, the mainstream electromagnetic oven structure is usually set temperature sensor on the bottom surface of panel, since temperature sensor is too far from cookware, and the heat conduction efficiency of glass panel is lower, therefore the temperature detection of this structure cannot feedback the temperature of cookware in real time, only can the temperature of cookware be speculated by temperature change curve, but since the material of cookware, the thickness of cookware and the food material in pot are different, temperature curve is changing, therefore it is impossible to accurately detect the temperature of cookware;Therefore, how to reduce the hysteresis of temperature detection to feedback the temperature of cookware in real time as far as possible is the problem to be solved at present. SUMMARY

[0003] The utility model is to provide a kind of quick temperature sensing probe to solve the above problems.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A kind of quick temperature sensing probe, comprising:

[0006] Temperature guide cap, the temperature guide cap includes connecting portion and support portion, the connecting portion is the tubular structure with opening in both ends;The support portion is set to the top outer edge of the connecting portion, and the bottom surface of the support portion is provided with convex ring;

[0007] Metal shell, the metal shell is wrapped in the top of the support portion, and the top end opening of the connecting portion is closed;

[0008] Connecting buckle, the connecting buckle includes buckle body and limiting portion, the buckle body is the tubular structure with opening in both ends, and the limiting portion is set to the outer wall of the buckle body;The upper end of the buckle body is inserted and buckled with the lower end of the connecting portion and is fixed;

[0009] Temperature sensing element, the temperature sensing element is set in connecting portion, and the temperature sensing element is in abutment with the top wall of the connecting portion, and the connecting portion is filled with temperature-resistant glue.

[0010] Preferably, the four peripheral edges of the metal shell are inwardly bent and buckled on the bottom surface of the support portion.

[0011] Preferably, the inner wall of the connecting portion is provided with a clamping groove, and the outer wall of the buckle body is provided with a protruding buckle, and the upper end of the buckle body is inserted into the connecting portion, so that the buckle and the clamping groove are buckled.

[0012] Preferably, the inner wall of the connecting part is provided with a first guide inclined surface at the lower end, and the outer wall of the clasp part is provided with a second guide inclined surface at the top; and the clamping groove is in a reverse tooth structure.

[0013] Preferably, the outer wall of the connecting part is provided with a step for limiting the depth of the connecting part inserted into the clasp part.

[0014] Preferably, the inner wall of the clasp part is provided with a clamping groove, and the outer wall of the connecting part is provided with a protruding buckle; the lower end of the connecting part is inserted into the clasp part, so that the buckle and the clamping groove are buckled.

[0015] Preferably, the inner wall of the clasp part is provided with a first guide inclined surface at the top, and the outer wall of the connecting part is provided with a second guide inclined surface at the lower end; and the clamping groove is in a reverse tooth structure.

[0016] Preferably, the outer wall of the connecting part is provided with a step for limiting the depth of the connecting part inserted into the clasp part.

[0017] Preferably, the support part is further provided with an elastic sealing gasket, and the bottom surface of the support part is concave upward in the area surrounded by the convex ring.

[0018] The elastic sealing gasket is sleeved on the connecting part and located on the bottom surface of the concave area surrounded by the convex ring, as shown in Figure 2 , or the elastic sealing gasket is sleeved on the clasp part and located on the upper surface of the limiting part, as shown in Figure 5 .

[0019] The inner top wall of the connecting part is at least partially in a thin-wall structure, and the temperature-sensing element abuts against the thin-wall structure.

[0020] One of the embodiments of the utility model has the following beneficial effects:

[0021] 1. By setting the connecting part as a structure penetrating through both ends, and wrapping the metal shell outside the support part, the temperature-sensing element arranged in the connecting part can be shielded, avoiding the temperature-sensing element being exposed, and protecting the temperature-sensing element; the cooking container and the temperature-sensing element are only separated by the metal shell, and the temperature-sensing element can be closer to the cooking container, and the metal shell has good heat conduction effect, so that the temperature of the cooking container can be quickly conducted to the temperature-sensing element, so that the temperature-sensing element can more accurately and sensitively detect the real-time temperature of the cooking container; the temperature-conducting cap and the metal shell can adopt the same or different materials, and the temperature-conducting cap has more space in material selection, which is beneficial to optimize the processing technology and reduce the material cost.

[0022] 2, The temperature sensing element is filled with temperature-resistant glue in the connecting part, which not only fixes the temperature sensing element, but also discharges air in the connecting part, so that the heat conduction effect between the temperature sensing element and the metal shell is better, and the temperature of the cooking container is more accurately and sensitively detected; the temperature sensing element abuts against the top of the connecting part, so that the temperature sensing element can be closer to the cooking container, and the accuracy and sensitivity of temperature detection are further improved;

[0023] 3, The panel is clamped by the supporting part and the limiting part, so that the quick temperature sensing probe is completely fixed in the vertical direction. The temperature guide cap is fixed on the panel through the mechanism structure, so that the temperature guide cap is prevented from falling off the panel. Compared with the method of bonding the temperature guide cap on the panel by glue, the mechanical connection method has better reliability and more stable and durable product. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings further illustrate the present application, but the contents in the drawings do not constitute any limitation on the present application.

[0025] Figure 1 is a sectional view structure schematic diagram of one embodiment of the present application;

[0026] Figure 2 is a partial sectional view structure schematic diagram of another embodiment of the present application installed on the panel;

[0027] Figure 3 is a sectional view structure schematic diagram of another embodiment of the present application;

[0028] Figure 4 is a sectional view structure schematic diagram of another embodiment of the present application;

[0029] Figure 5 is a partial sectional view structure schematic diagram of another embodiment of the present application installed on the panel;

[0030] In the drawings: 1-temperature guide cap, 11-connecting part, 111-clip slot, 112-first guide slope, 12-supporting part, 121-convex ring, 2-metal shell, 3-connecting buckle, 31-buckle body, 311-buckle, 312-second guide slope, 313-step, 32-limiting part, 4-temperature sensing element, 5-temperature-resistant glue, 6-elastic sealing gasket, 7-panel, 71-annular groove, 72-through hole. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application. In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0032] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the first feature directly above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the first feature directly below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0035] The technical scheme of the present application is further illustrated below by specific embodiments in conjunction with the drawings.

[0036] A rapid temperature sensing probe of the embodiment, as shown in the drawings, comprises: Figures 1-5

[0037] A temperature guide cap 1, which comprises a connecting part 11 and a supporting part 12, the connecting part 11 is a tubular structure with openings at both ends; the supporting part 12 is arranged on the top outer edge of the connecting part 11, and the bottom surface of the supporting part 12 is provided with a convex ring 121;

[0038] A metal shell 2, which is wrapped on the top of the supporting part 12 and seals the top end opening of the connecting part 11;

[0039] A connecting buckle 3, which comprises a buckle body part 31 and a limiting part 32, the buckle body part 31 is a tubular structure with openings at both ends, and the limiting part 32 is arranged on the outer wall of the buckle body part 31; the upper end of the buckle body part 31 is inserted into and fixed with the lower end of the connecting part 11;

[0040] A temperature sensing element 4, which is arranged in the connecting part 11 and abuts against the top wall of the connecting part 11, and the connecting part 11 is filled with temperature-resistant glue 5.

[0041] The rapid temperature sensing probe of the present application is installed on the panel 7 of an electromagnetic cooking appliance (such as an electromagnetic oven and an IH rice cooker, etc.), which is used for detecting the temperature of a cooking container placed on the electromagnetic cooking appliance. A plurality of rapid temperature sensing probes of the present application can be installed on the panel 7, such as three, four, five, etc. By installing multiple rapid temperature sensing probes, multi-point temperature measurement of the cooking container can be achieved, and the temperature detection is more accurate.

[0042] ​By setting the connecting portion 11 as a structure penetrating through both ends, and wrapping the metal shell 2 outside the supporting portion 12, the temperature sensing element 4 arranged in the connecting portion 11 can be shielded, avoiding the temperature sensing element 4 from being exposed, and protecting the temperature sensing element 4; the cooking container and the temperature sensing element 4 are only separated by the metal shell 2, and the temperature sensing element 4 can be closer to the cooking container, and the metal shell 2 has good heat conduction effect, so that the temperature of the cooking container can be quickly conducted to the temperature sensing element 4, so that the temperature sensing element 4 can more accurately and sensitively detect the real-time temperature of the cooking container; the temperature guide cap 1 and the metal shell 2 can be made of the same or different materials, and the temperature guide cap 1 has more space in the selection of materials, which is conducive to optimizing the processing technology and reducing the material cost.

[0043] Before the fast temperature sensing probe is installed, the temperature sensing element 4 is first placed in the connecting portion 11, the temperature sensing element 4 is in contact with the bottom surface of the metal shell 2, then the temperature sensing element 4 is filled with temperature-resistant glue 5 to fix the temperature sensing element 4, the temperature-resistant glue 5 refers to the glue that can meet the temperature requirements in actual application, such as silicone glue; filling the temperature-resistant glue 5 in the connecting portion 11 can not only play a fixing role for the temperature sensing element 4, but also can exhaust the air in the connecting portion 11, so that the heat conduction effect between the temperature sensing element 4 and the metal shell 2 is better, so as to more accurately and sensitively detect the temperature of the cooking container; the temperature sensing element 4 is in contact with the top of the connecting portion 11, so that the temperature sensing element 4 can be closer to the cooking container, so as to further improve the accuracy and sensitivity of temperature detection.

[0044] In order to install the rapid temperature sensing probe of the utility model on the panel 7, it is necessary to previously open annular groove 71 and through hole 72 which is located in annular groove 71 and penetrates up and down on the upper surface of panel 7, the connecting part 11 of temperature guide cap 1 is inserted into through hole 72 from the upper surface of panel 7, convex ring 121 is inserted into annular groove 71, and the bottom surface of supporting part 12 is supported on the upper surface of panel 7; while connecting buckle 3 is inserted into through hole 72 from the bottom surface of panel 7, connecting buckle 3 is inserted and buckled with connecting part 11 of temperature guide cap 1 through buckle body part 31, and limiting part 32 is abutted with the bottom surface of panel 7, and panel 7 is clamped through supporting part 12 and limiting part 32, so that the rapid temperature sensing probe can be completely fixed with panel 7 in the vertical direction. The utility model sets up connecting buckle 3, so that temperature guide cap 1 can be fixed on panel 7 through mechanism structure, thereby better preventing temperature guide cap 1 from falling off panel 7, compared with the mode that temperature guide cap 1 is bonded on panel 7 with glue, the utility model has better reliability through mechanical connection mode, and the product is more stable and durable; as one of the implementation modes, temperature sensing element 4 can be a thermistor; in order to connect temperature sensing element 4 with the controller (such as a circuit board) in the electromagnetic cooking utensil, therefore, buckle body part 31 is provided as a tubular structure with openings at both ends, so that the connecting wire of temperature sensing element 4 can be downwardly inserted out of the inside of buckle body part 31 and electrically connected with the controller in the electromagnetic cooking utensil.

[0045] Further, the four peripheral edges of the metal shell 2 are inwardly bent and buckled on the bottom surface of the supporting part 12.

[0046] The metal shell 2 can be punched from a metal sheet and wrapped on the top of the supporting part 12 by punching, so that the four peripheral edges of the metal shell 2 are inwardly bent and buckled on the bottom surface of the supporting part 12, which can effectively prevent the metal shell 2 from falling off the temperature guide cap 1.

[0047] As one of the implementation modes of the connection mode of the temperature guide cap 1 and the connecting buckle 3, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , the inner wall of the connecting part 11 is provided with a clamping groove 111, the outer wall of the buckle body part 31 is provided with a protruding clasp 311, and the upper end of the buckle body part 31 is inserted into the connecting part 11, so that the clasp 311 and the clamping groove 111 are buckled.

[0048] In the embodiment, the inner wall of the connecting portion 11 cooperates with the outer wall of the buckling body portion 31, so that the buckling body portion 31 can be inserted into the connecting portion 11, and the buckling 311 on the outer wall of the buckling body portion 31 is buckled with the clamping groove 111 on the inner wall of the connecting portion 11. It should be noted that, since the connecting portion 11 and the buckling body portion 31 are both tubular structures, the thickness of the side wall is small, so when the buckling body portion 31 is inserted into the connecting portion 11, the connecting portion 11 and the buckling body portion 31 can both be elastically deformed to a certain extent, so that the outer wall of the buckling body portion 31 can be inserted into the connecting portion 11 even if the buckling 311 is provided as a protrusion, so as to realize the buckling connection of the buckling 311.

[0049] Further, the inner wall of the connecting portion 11 is provided with a first guide inclined surface 112 at the lower end, and the outer wall of the buckling body portion 31 is provided with a second guide inclined surface 312 at the top; and the clamping groove 111 is provided in a reverse tooth shape.

[0050] By providing the first guide inclined surface 112 and the second guide inclined surface 312, the connecting portion 11 and the buckling body portion 31 can be guided when being inserted, so that the buckling body portion 31 can be better inserted into the connecting portion 11; and the clamping groove 111 is provided in a reverse tooth shape, so that the connecting portion 11 and the buckling body portion 31 are not easy to be loosened after being inserted and buckled, and the problem of the temperature guide cap 1 falling off can be better avoided.

[0051] Further, the outer wall of the buckling body portion 31 or the inner wall of the connecting portion 11 is provided with a step 313, which is used to limit the depth of the buckling body portion 31 inserted into the connecting portion 11.

[0052] Since the temperature sensing element 4 is arranged in the connecting portion 11, and the temperature sensing element 4 is relatively fragile, if the buckling body portion 31 is inserted into the connecting portion 11 too deeply, the buckling body portion 31 is easy to crush the temperature sensing element 4. In order to avoid this problem, the utility model provides the step 313 on the outer wall of the buckling body portion 31 or the inner wall of the connecting portion 11, and the limiting effect of the step 313 can limit the depth of the buckling body portion 31 inserted into the connecting portion 11, so as to effectively prevent the temperature sensing element 4 from being crushed. Furthermore, since the panel 7 of the electromagnetic cooking utensil is usually made of glass, limiting the depth of the buckling body portion 31 inserted into the connecting portion 11 can also limit the distance between the bottom surface of the supporting portion 12 and the top surface of the limiting portion 32, so as to prevent the panel 7 from being crushed when the temperature guide cap 1 and the connecting buckle 3 are installed.

[0053] As another embodiment of the connecting mode of the temperature guide cap 1 and the connecting buckle 3, as shown in Figure 4 the inner wall of the buckling body portion 31 is provided with the clamping groove 111, the outer wall of the connecting portion 11 is provided with the protruding buckling 311, and the lower end of the connecting portion 11 is inserted into the buckling body portion 31, so that the buckling 311 and the clamping groove 111 are buckled.

[0054] As another embodiment, the connecting portion 11 can also be inserted into the buckle body portion 31, in which the outer wall of the connecting portion 11 cooperates with the inner wall of the buckle body portion 31 to enable the connecting portion 11 to be inserted into the buckle body portion 31 to achieve the buckling fixation of the buckle 311 and the clamping groove 111.

[0055] Further, the outer wall of the connecting portion 11 is provided with a first guide inclined surface 112 at the lower end, and the inner wall of the buckle body portion 31 is provided with a second guide inclined surface 312 at the top; the clamping groove 111 is in a reverse tooth structure.

[0056] By providing the first guide inclined surface 112 and the second guide inclined surface 312, the connecting portion 11 and the buckle body portion 31 can be guided when being inserted, so that the buckle body portion 31 can be better inserted into the connecting portion 11; the clamping groove 111 is in a reverse tooth structure, so that the connecting portion 11 and the buckle body portion 31 are not easy to be loosened after being inserted and buckled, and the problem of the temperature guide cap 1 falling off can be better avoided.

[0057] Further, the outer wall of the connecting portion 11 is provided with a step 313 for limiting the depth of the connecting portion 11 inserted into the buckle body portion 31.

[0058] In this embodiment, the depth of the connecting portion 11 inserted into the buckle body portion 31 is limited, which can limit the distance between the bottom surface of the supporting portion 12 and the top surface of the limiting portion 32, and prevent the panel 7 from being crushed when the temperature guide cap 1 and the connecting buckle 3 are installed.

[0059] Preferably, an elastic sealing gasket 6 is further included, and the bottom surface of the supporting portion 12 is concave upward in the area surrounded by the convex ring 121.

[0060] The elastic sealing gasket 6 is sleeved on the connecting portion 11 and located at the bottom surface of the concave area surrounded by the convex ring 121, as shown in Figure 2 , or the elastic sealing gasket 6 is sleeved on the buckle body portion 31 and located at the upper surface of the limiting portion 32, as shown in Figure 5 .

[0061] The inner top wall of the connecting portion 11 is at least partially in a thin-wall structure, and the temperature sensing element 4 abuts against the thin-wall structure.

[0062] Since the annular groove 71 needs to be opened on the panel 7 to cooperate with the convex ring 121, the area in the annular groove 71 is lowered in bearing due to the existence of the annular groove 71, and the bottom surface of the supporting part 12 has a height difference inside and outside the convex ring 121, when the temperature guide cap 1 is installed on the panel 7, the bottom surface of the supporting part 12 outside the convex ring 121 is supported on the upper surface of the panel 7, and the bottom surface of the supporting part 12 inside the convex ring 121 is suspended on the upper surface of the panel 7; In this way, when the temperature guide cap 1 bears the weight of the cooking container, it is supported on the panel 7 through the bottom surface outside the convex ring 121, thereby avoiding the stress on the area surrounded by the annular groove 71, and further enabling the panel 7 to bear greater impact force. The elastic sealing gasket 6 can play a buffering role, so that when the temperature guide cap 1 and the connecting buckle 3 are assembled to the panel 7, the impact force caused by the buckling at the moment is prevented from being too large to cause the panel 7 to break; of course, the elastic sealing gasket 6 can also play a role in absorbing processing errors, so that the temperature guide cap 1 and the connecting buckle 3 are not easy to shake after being assembled to the panel 7, and can also play a certain waterproof role. The inner top wall of the connecting part 11 is at least partially thin-walled, and the temperature sensing element 4 abuts against the thin-walled structure, which can further enable the temperature sensing element 4 to approach the cooking container under the premise of ensuring that the temperature guide cap 1 has good strength, and further improve the accuracy and sensitivity of temperature detection.

[0063] In the description of the present specification, the description of the terms "one embodiment", "certain embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The technical principle of the present application is described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principle of the present application, and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these equivalent variants or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A fast thermographic probe, characterized in that, The utility model relates to a temperature sensing device, which comprises a temperature sensing cap, a metal shell, a connecting buckle and a resilient sealing gasket. The temperature sensing cap comprises a connecting part and a supporting part. The connecting part is a tubular structure with openings at both ends. The supporting part is arranged on the top outer edge of the connecting part. The bottom surface of the supporting part is provided with a convex ring.

2. A fast thermal probe according to claim 1, characterized in that The metal shell is wrapped on the top of the supporting part and seals the top end opening of the connecting part.

3. A fast thermal probe according to claim 1, wherein The connecting buckle comprises a buckle body and a limiting part.

4. A fast thermal probe according to claim 3, wherein The buckle body is a tubular structure with openings at both ends.

5. A fast thermal probe according to claim 3, wherein The limiting part is arranged on the outer wall of the buckle body.

6. A fast thermal probe according to claim 1, wherein The upper end of the buckle body is inserted into the lower end of the connecting part and is fixed by buckling.

7. A fast thermal probe according to claim 6, wherein The temperature sensing element is arranged in the connecting part and abuts against the top wall of the connecting part.

8. A fast thermal probe according to claim 6, wherein The connecting part is filled with temperature-resistant glue.

9. A fast thermal probe according to claim 1, wherein The peripheral edge of the metal shell is bent inward and buckled on the bottom surface of the supporting part. The inner wall of the connecting part is provided with a clamping groove. The outer wall of the buckle body is provided with a protruding clasp. The upper end of the buckle body is inserted into the connecting part so that the clasp and the clamping groove are buckled. The lower end of the inner wall of the connecting part is provided with a first guide slope. The top of the outer wall of the buckle body is provided with a second guide slope. The clamping groove is a reverse tooth structure. The outer wall of the buckle body or the inner wall of the connecting part is provided with a step. The step is used to limit the depth of the buckle body inserted into the connecting part. The outer wall of the connecting part is provided with a first guide slope. The top of the inner wall of the buckle body is provided with a second guide slope. The clamping groove is a reverse tooth structure. The outer wall of the connecting part is provided with a step. The step is used to limit the depth of the connecting part inserted into the buckle body. The resilient sealing gasket is arranged on the bottom surface of the recessed area surrounded by the convex ring of the supporting part. The resilient sealing gasket is arranged on the bottom surface of the recessed area surrounded by the convex ring of the connecting part. The inner top wall of the connecting part is at least partially a thin-walled structure. The temperature sensing element abuts against the thin-walled structure.

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