A temperature measurement system for a heating element

Abstract

The present invention discloses a temperature measurement system for a heating element, comprising: a heating element fixing mechanism for fixing the heating element; a temperature measurement element for measuring the temperature of the heating element; a temperature measurement element fixing mechanism, including a bracket and a pressing assembly, the pressing assembly including a first end and a second end, the first end of the pressing assembly being fixedly connected to the bracket, the second end of the pressing assembly being provided with a heat insulation portion, and the pressing assembly pressing the temperature measurement element against the surface of the heating element through the heat insulation portion. By adopting the above technical solution, the heat of the heating element will not be excessively conducted to other components; nor is it necessary to adjust the structure of the pressing assembly according to the structure of the heating element, and the versatility is stronger.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco, and particularly to a temperature measurement system for a heating element. Background Art

[0002] At present, the methods for measuring the surface temperature of the heating element of an aerosol generating device are roughly divided into two types: infrared thermal imaging method and temperature measuring element measurement method. The former is a non-contact measurement, and the latter is a contact measurement.

[0003] The infrared thermal imaging method is non-contact. It converts the temperature distribution on the surface of an object into an image visible to the human eye, and displays the temperature distribution on the surface of the object in different colors. It can capture multiple parameters such as the highest temperature, the lowest temperature, and the average temperature in the area. However, the infrared thermal imaging method is easily affected by environmental factors (such as environmental temperature, dust in the air, etc.); and it has a greater impact on the temperature measurement readings of shiny or polished metal surfaces.

[0004] The basic principle of the temperature measuring element measurement method is that a closed loop is composed of two conductors of different materials. When there is a temperature gradient at both ends, there will be an electric current passing through the loop. At this time, there is an electromotive force between the two ends, which is converted into temperature by a high-speed data acquisition instrument. The temperature measuring element measurement method is not easily affected by the environment, but the measuring end needs to be in close contact with the surface to be measured.

[0005] In the prior art, a variety of fixing methods for temperature measuring elements are disclosed. For example, the temperature measuring element is pasted with glue or directly welded to the surface of the object to be measured. Another example is that in the prior art 1 (CN204495478U), a fixing device for a thermocouple is also disclosed, which includes a fixing part and a heat insulation layer. The fixing part is provided with a clamping groove for clamping on the component to be measured, and the heat insulation layer is arranged in the clamping groove to isolate the fixing part and the component to be measured. The temperature measuring element is attached to the surface of the component to be measured through the wire passing through holes on the fixing part and the heat insulation layer. Another example is that in the prior art 2 (CN203405281U), a fixing device for a thermocouple is disclosed, which includes a heat insulation part. A cylindrical cavity adapted to the component to be measured is formed in the heat insulation part, and an installation groove for accommodating the temperature measuring element is further provided on the inner wall of the heat insulation part. Through this fixing mechanism, the temperature measuring element accommodated in the installation groove can be tightly attached to the component to be measured to complete the temperature measurement, and the influence of the environmental temperature on the temperature measurement of the temperature measuring element can be avoided through the heat insulation part. Summary of the Invention

[0006] However, since the surface temperature of the heating element of the aerosol generating device is basically in the range of 200-400°C, the temperature is relatively high, the shape is variable, and it is necessary to measure the temperature of multiple regions on the surface of the heating element. Using traditional methods such as pasting with glue or welding to the surface of the object to be measured is not suitable for measuring the surface temperature of the heating element of the aerosol generating device; while using the fixing device of the thermocouple in the prior art, according to the heating element of different shapes, it is necessary to specially make a fixing device with different-shaped inner cavities that matches the heating element; and due to the too high temperature of the heating element, even if the heating element is wrapped circumferentially with heat-insulating materials, due to the large contact area, the heat-insulating part will still conduct too much heat of the heating element to the outside; in addition, this circumferential wrapping method is also not suitable for accurately controlling the contact position between the temperature measuring element and the surface of the heating element, and cannot accurately locate and measure the temperature of a specific region of the heating element.

[0007] Therefore, the technical problem to be solved by the present invention is to provide a temperature measuring system dedicated to a heating element, which can ensure that the measuring end of the temperature measuring element is in close contact with the surface of the heating element, and at the same time will not conduct too much heat of the heating element to other components.

[0008] To solve the above problems, the present invention provides a temperature measuring system for a heating element, including:

[0009] A heating element fixing mechanism for fixing the heating element;

[0010] A temperature measuring element for measuring the temperature of the heating element;

[0011] A temperature measuring element fixing mechanism, including a bracket and a pressing component, the pressing component includes a first end and a second end, the first end of the pressing component is fixedly connected to the bracket, and the second end of the pressing component is provided with a heat-insulating part, and the pressing component presses the temperature measuring element against the surface of the heating element through the heat-insulating part.

[0012] With the above technical solution, one end of the pressing component is fixedly connected to the bracket. By adjusting the relative position of the pressing component and the heating element, the other end of the pressing component can press the temperature measuring element against the surface of the heating element, and there is no need to set a corresponding annular groove according to the shape of the heating element, so the versatility is stronger; and compared with the circumferential wrapping fixing method in the prior art, only one end face of the pressing component needs to be in contact with the surface of the heating element, and there is no need to cooperate with the surface of the heating element, and the end face of the pressing component in contact with the heating element can be set to the minimum, reducing the contact area and further reducing the heat dissipation.

[0013] According to another specific embodiment of the present invention, the heat-insulating part includes an elastic heat-insulating part, and the elastic heat-insulating part is in contact with the temperature measuring element.

[0014] According to another specific embodiment of the present invention, the pressing assembly further includes a pressing rod that can elastically stretch and deform. One end of the pressing rod is connected to the bracket, and the other end is provided with a heat insulation portion.

[0015] According to another specific embodiment of the present invention, the pressing rod includes an inner tube, an outer tube, and a spring. The outer tube is sleeved outside the inner tube, and both ends of the spring are respectively connected to the inner tube and the outer tube.

[0016] According to another specific embodiment of the present invention, the temperature measurement system further includes a second displacement mechanism. The pressing assembly is connected to the bracket through the second displacement mechanism, and the position of the pressing assembly can be moved through the second displacement mechanism.

[0017] According to another specific embodiment of the present invention, through the second displacement mechanism, the position of the pressing assembly can be moved along the first direction and / or the second direction. Wherein, the first direction is the extending direction of the heating element, the extending direction of the pressing assembly is perpendicular to the first direction, and the second direction is perpendicular to the first direction and the extending direction of the pressing assembly;

[0018] Or, the second displacement mechanism includes an annular guide rail. The first end of the pressing assembly is connected to the annular guide rail and can move along the annular guide rail. Wherein, the central axis of the annular guide rail is arranged along the first direction, and the first direction is the extending direction of the heating element;

[0019] Or, the second displacement mechanism includes an annular guide rail. The first end of the pressing assembly is connected to the annular guide rail and can move along the annular guide rail. Wherein, the central axis of the annular guide rail is arranged along the first direction and the annular guide rail can move relative to the bracket along the first direction, and the first direction is the extending direction of the heating element.

[0020] According to another specific embodiment of the present invention, it further includes a guiding mechanism for guiding the temperature measuring element to the surface of the heating element.

[0021] According to another specific embodiment of the present invention, the guiding mechanism is a telescopic tube that can be telescoped along the first direction, and the first direction is the extending direction of the heating element;

[0022] And / or the guiding mechanism is connected to the bracket through a third displacement mechanism, and the position of the guiding mechanism can be moved through the third displacement mechanism.

[0023] According to another specific embodiment of the present invention, the temperature measurement system further includes a first displacement mechanism. The first displacement mechanism is connected to the heating element fixing mechanism, and the position of the heating element can be moved through the first displacement mechanism.

[0024] According to another specific embodiment of the present invention, the heating element can be moved along the first direction and the second direction respectively through the first displacement mechanism, and the heating element can also be rotated along its central axis. The first direction is the extending direction of the heating element, and the second direction is perpendicular to the first direction.

[0025] According to another specific embodiment of the present invention, the heating element fixing mechanism is a flat-jaw pliers or a multi-jaw chuck, and the number of jaws of the multi-jaw chuck is greater than or equal to 3.

[0026] According to another specific embodiment of the present invention, the heating element is a heating element for an aerosol generating device.

[0027] According to another specific embodiment of the present invention, the temperature measuring element is a thermocouple. Description of the Drawings

[0028] The present invention will be further described in detail below with reference to the drawings and specific embodiments:

[0029] Figure 1 is a schematic structural diagram of a temperature measuring system provided by the present invention;

[0030] Figure 2 is a partially enlarged view of another temperature measuring system provided by the present invention;

[0031] Figure 3 is a partially enlarged view of another temperature measuring system provided by the present invention;

[0032] Figure 4 is a schematic structural diagram of the heating element fixing mechanism of another temperature measuring system provided by the present invention;

[0033] Figure 5 is a schematic structural diagram of the heating element fixing mechanism of another temperature measuring system provided by the present invention;

[0034] Figure 6 is a schematic diagram of the partial structure of another temperature measuring system provided by the present invention;

[0035] Figure 7 is a schematic diagram of the partial structure of another temperature measuring system provided by the present invention;

[0036] Figure 8 is a schematic diagram of the partial structure of another temperature measuring system provided by the present invention.

[0037] Reference Numerals in the Drawings:

[0038] Smoking device main body 100

[0039] Heating element 110

[0040] Heating element fixing mechanism 200

[0041] Bracket 310

[0042] Pressing assembly 320

[0043] Heat insulation part 321

[0044] Elastic heat insulation part 3211

[0045] Rigid heat insulation part 3212

[0046] Press rod 322

[0047] First displacement mechanism 330

[0048] First bottom plate 331

[0049] Second bottom plate 332

[0050] Third bottom plate 333

[0051] First metering screw 334

[0052] Second metering screw 335

[0053] Fixed plate 336

[0054] Rotating handle 337

[0055] Second displacement mechanism 340

[0056] Annular guide rail 341

[0057] Third displacement mechanism 350

[0058] C-shaped chute 351

[0059] Guide mechanism 360

[0060] Temperature measuring element 400 Detailed implementation manners

[0061] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0062] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0063] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is habitually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0064] The terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0065] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0066] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the drawings.

[0067] As Figure 1-3 shown, the present invention provides a temperature measurement system for a heating element 110, including:

[0068] A heating element fixing mechanism 200 for fixing the heating element 110 so that the heating element 110 extends along a first direction (i.e., the direction of the central axis of the heating element 110, such as Figure 1 the X-X direction described).

[0069] A temperature measurement element 400 for measuring the temperature of the heating element 110;

[0070] A temperature measurement element fixing mechanism, including a bracket 310 and a pressing assembly 320. Preferably, the extending direction of the pressing assembly 320 is perpendicular to the first direction. The pressing assembly 320 includes a first end and a second end. The first end of the pressing assembly 320 is fixedly connected to the bracket 310, and the second end of the pressing assembly 320 is provided with a heat insulation portion 321. The pressing assembly 320 presses the temperature measurement element 400 against the surface of the heating element 110 through the heat insulation portion 321.

[0071] Optionally, the relative positions of the heating element fixing mechanism 200 and the temperature measuring element fixing mechanism in the present application can be moved to adjust the relative positions of the heating element 110 and the pressing assembly 320; optionally, the relative positions of the heating element fixing mechanism 200 and the temperature measuring element fixing mechanism can also be fixed. For example, they are jointly fixed on a substrate, and the relative positions of the heating element 110 and the pressing assembly 320 are adjusted by moving the position of the heating element 110 fixed on the heating element fixing mechanism 200.

[0072] With the above technical solution, one end of the pressing assembly 320 is fixedly connected to the bracket 310. By adjusting the relative positions of the pressing assembly 320 and the heating element 110, the other end of the pressing assembly 320 can press the temperature measuring element 400 against the surface of the heating element 110. There is no need to set corresponding annular grooves according to the shape of the heating element 110, and the versatility is stronger; and compared with the circumferential wrapping fixing method in the prior art, in the present application, only one end face of the pressing assembly 320 needs to contact the surface of the heating element 110 and does not need to cooperate with the surface of the heating element 110. The end face of the pressing assembly 320 in contact with the heating element 110 can be set to the minimum, reducing the contact area and further reducing the heat dissipation.

[0073] Further, before the pressing assembly 320 just contacts the temperature measuring element 400 and has not deformed due to pressing the temperature measuring element 400, the surface of the pressing assembly 320 for contacting the temperature measuring element 400 is parallel to the axial direction of the heating element 110. In this way, when the pressing assembly 320 presses the temperature measuring element 400 against the surface of the heating element 110, the temperature measuring element 400 is uniformly stressed and there is no stress concentration point, which can effectively prevent the temperature measuring element 400 from being bent and ensure the temperature measurement accuracy. The contact surface between the pressing assembly 320 and the heating element 110 is a line contact or even a point contact, which can minimize the contact area between the pressing assembly 320 and the heating element 110. More preferably, the surface of the pressing assembly 320 for contacting the temperature measuring element 400 is a plane, and for the non-planar area to be measured on the heating element 110, the contact area between the pressing assembly 320 and the heating element 110 is small.

[0074] To further ensure the stable contact between the temperature measuring element 400 and the heating element 110, according to another specific embodiment of the present invention, as Figure 2As shown, the heat insulation part 321 includes a connected rigid heat insulation part 3212 and an elastic heat insulation part 3211. The elastic heat insulation part 3211 is in direct contact with the temperature measuring element 400, and the rigid heat insulation part 3212 is not in contact with the temperature measuring element 400 and is used to connect the pressure bar 322 and the elastic heat insulation part 3211. The elastic heat insulation part 3211 forms good contact with the surface of the temperature measuring element 400 through appropriate deformation, and the rigid heat insulation part 3212 can better conduct pressure to the surface of the temperature measuring element 400 to ensure stable contact between the temperature measuring element 400 and the heating element 110.

[0075] Preferably, in order to further reduce the exported heat, on the one hand, the rigid heat insulation part 3212 can be set as an elongated cylindrical structure with a diameter less than or equal to 5 mm and a length-diameter ratio greater than or equal to 3:1, more preferably greater than or equal to 5:1. Considering the avoidance of breakage of the rigid heat insulation part 3212 and cost reduction, it is preferred that the diameter of the rigid heat insulation part 3212 is greater than or equal to 1 mm and the length-diameter ratio is less than or equal to 10:1.

[0076] On the other hand, the thermal conductivity of the heat insulation part 321 can be controlled to be less than 0.2 W / mK. For example, the elastic heat insulation part 3211 can adopt "Nitto XF100NPT01" with a thermal conductivity less than 0.1 W / mK; the rigid heat insulation part 3212 can adopt a material with high temperature resistance and low thermal conductivity, such as fireproof wood soaked in flame retardant, with a thermal conductivity of 0.14 - 0.18 W / mK.

[0077] Furthermore, the temperature measuring element is a contact type temperature measuring element, specifically it can be a thermocouple, a thermal resistance, a thermistor, etc. Considering both cost and temperature measuring accuracy, a thermocouple is preferred.

[0078] According to another specific embodiment of the present invention, as Figure 2 and Figure 3 shown, the pressing assembly 320 is rod-shaped. Being rod-shaped means that the pressing assembly 320 is an elongated member, and its cross-section perpendicular to the axial direction can be circular, triangular, rectangular, or even an irregular polygon. The cross-sectional areas at different positions in the axial direction can be the same or different.

[0079] Since the clamping assembly 320 is rod-shaped, it contacts the surface of the heating element 110 through the heat insulation part 321 at one end of the rod. The rod-shaped end face is small, resulting in a small contact area with the heating element 110, and the heat of the heating element 110 will not be excessively transferred to other components. There is also no need to adjust the structure of the clamping assembly 320 according to the structure of the heating element 110, and it is more versatile. When the heating element 110 is clamped, no rotation occurs, and the temperature measuring element 400 can be accurately positioned in a selected area with accurate positioning. After completing the measurement of a selected area, the heating element fixing mechanism 200 or the position of the temperature measuring element fixing mechanism can be flexibly moved, and then another selected area can be measured, and multi-point measurement can be performed. The temperature measuring element 400 does not need to be bent to be fixed on the surface of the heating element 110, and the measurement effect is more accurate.

[0080] Furthermore, the pressing assembly 320 also includes a pressure rod 322 that can be elastically deformed, one end of the pressure rod 322 is connected to the bracket 310, and the other end is connected to the heat insulation part 321. During the measurement process, the relative position of the heating element 110 and the pressing assembly 320 can be adjusted first, so that the heat insulation part 321 of the pressing assembly 320 is pressed on a certain area to be measured of the heating element 110, and then the pressure rod 322 is compressed to shrink the pressure rod 322 in a direction away from the heating element 110, and the heating element 110 and the heat insulation part 321 are separated. At this time, the temperature measuring element 400 is placed on the area to be measured, and then the pressure rod 322 is released. The pressing assembly 320 will press the temperature measuring element 400 on the area to be measured of the heating element 110 through the heat insulation part 321, and the operation is convenient and quick. In addition, the pressure provided by the elastic deformation is appropriate, and compared with the rigid downward pressing structure, the temperature measuring element 400 or the heating element 110 will not be damaged due to excessive pressure.

[0081] Specifically, the compression rod 322 can be a spring telescopic rod, including an inner tube, an outer tube and a spring, the outer tube is sleeved outside the inner tube, and the two ends of the spring are connected to the inner tube and the outer tube respectively. Figure 3 The compression spring provides a compression stroke and appropriate pressure in the extension direction of the pressing assembly 320. The pressure can be adjusted by adjusting the tightness of the spring and springs of different specifications, and the pressure is transmitted through the rigid insulation part 3212, thereby achieving full contact between the elastic insulation part 3211, the measuring end of the temperature measuring element 400, and the measured heating element 110.

[0082] Furthermore, the heating element 110 in the present application may be a heating element 110 for an aerosol generating device, for example, a heating element for heating a non-combustion smoking device, or a heating element for an electronic cigarette smoking device.

[0083] The heating element 110 and the structure of the aerosol generating device are different. According to different heating methods, the heating element 110 includes rod-shaped, sheet-shaped, ring-shaped, cylindrical, filamentous, and so on. The external structure of the aerosol generating device will also be designed into various structures for various considerations.

[0084] When measuring the temperature of the heating element 110 of the aerosol generating device, the part of the smoking device for storing the aerosol generating article is removed, and only the main body part of the smoking device is left. During the measurement process, the heating element fixing mechanism 200 actually fixes the heating element 110 by fixing the main body 100 of the smoking device. For different external structures of the main body 100 of the smoking device, different heating element fixing mechanisms 200 can be selected. For example, Figure 4 For the square main body 100 of the smoking device shown, which has two parallel planes on the outer surface, a flat-jaw vice can be directly used for fixing; or Figure 5 For the circular main body 100 of the smoking device shown or some smoking device main bodies 100 with irregular shapes, a three-jaw chuck can be used for fixing, or a multi-jaw chuck can be used, and the number of jaws of the multi-jaw chuck is greater than 3.

[0085] According to another specific embodiment of the present invention, in order to facilitate multi-point simultaneous measurement, a plurality of pressing components 320 can be provided to simultaneously measure multiple regions on the surface of the heating element 110.

[0086] Since it is necessary to measure the temperature of multiple regions on the surface of the heating element 110, in order to facilitate the replacement of the temperature measurement region, according to another specific embodiment of the present invention, the temperature measurement system further includes a first displacement mechanism 330. The first displacement mechanism 330 is connected to the heating element fixing mechanism 200, and the position of the heating element 110 can be flexibly moved through the first displacement mechanism 330 to facilitate the measurement of different regions on the surface of the heating element 110.

[0087] Furthermore, as Figure 3 and Figure 6As shown, the first displacement mechanism 330 includes a first bottom plate 331, a second bottom plate 332, and a third bottom plate 333 connected in sequence, and also includes a first metering screw 334 and a second metering screw 335. Scales are provided on the first metering screw 334 and the second metering screw 335. The first bottom plate 331 and the second bottom plate 332 are connected by a dovetail chute extending in the first direction. A convex portion with a first threaded hole is fixedly provided on the first bottom plate 331, and the first threaded hole also extends in the first direction. The first metering screw 334 is inserted into the first thread, and one end is fixedly connected to the second bottom plate 332. By rotating the first metering screw 334, the second bottom plate 332 can be moved back and forth in the first direction. Similarly, the second bottom plate 332 and the third bottom plate 333 are connected by a dovetail chute extending in the second direction. A convex portion with a second threaded hole is fixedly provided on the second bottom plate 332, and the second threaded hole also extends in the second direction. The second metering screw 335 is inserted into the second thread, and one end is fixedly connected to the third bottom plate 333. By rotating the second metering screw 335, the third bottom plate 333 can be moved back and forth in the second direction. The second direction (such as Figure 1 the Y-Y direction shown) is perpendicular to the first direction.

[0088] Since the heating element 110 is small in volume and the surface of the heating element 110 is divided into multiple regions to be measured, when the temperature measuring element 400 is placed on a selected region to be measured on the heating element 110, it may take a long time to adjust the relative positions of the heating element 110, the temperature measuring element 400, and the pressing assembly 320 using a conventional displacement adjustment mechanism.

[0089] In this application, when starting the measurement, the relative positions of the heating element fixing mechanism 200 and the temperature measuring element fixing mechanism can be moved first; or the position of the heating element 110 fixed on the heating element fixing mechanism 200 can be moved; or the positions of the pressing assembly 320 and the temperature measuring element 400 can be roughly adjusted through the second displacement mechanism 340 or the third displacement mechanism 350 to adjust the pressing assembly 320 and the temperature measuring element 400 to near the region to be measured. Subsequently, through the fine adjustment function of the first displacement mechanism 330, the position of the heating element 110 can be slightly moved only by rotating the first metering screw 334 and the second metering screw 335, so that the pressing assembly 320 presses the temperature measuring element 400 precisely on the selected region to be measured.

[0090] After the temperature measurement of the first selected area is completed, there is no need to adjust the relative positions of the heating element fixing mechanism 200 and the temperature measuring element fixing mechanism, or move the position of the heating element 110 fixed on the heating element fixing mechanism 200, or roughly adjust the positions of the pressing assembly 320 and the temperature measuring element 400 through the second displacement mechanism 340 or the third displacement mechanism 350. Only need to lift the pressing assembly 320 and rotate the first metering screw 334 and the second metering screw 335 to move the position of the heating element 110. When the heating element 110 moves to the position where the temperature measuring element 400 is located in the second selected area to be measured, loosen the pressing assembly 320, and the pressing assembly 320 can press the temperature measuring element 400 on the second selected area to be measured. Through the scale on the metering screw, the heating element 110 can be moved slightly and precisely to conveniently locate multiple areas to be measured.

[0091] Further, the first displacement mechanism 330 further includes a fixing plate 336, a bearing and a rotating handle 337. The fixing plate 336 is fixedly connected to the third bottom plate 333, and a bearing hole is formed in the fixing plate 336. The heating element fixing mechanism 200 is arranged in the bearing hole through the bearing. One end of the heating element fixing mechanism 200 away from the heating element 110 is also connected to the rotating handle 337. Among them, the heating element fixing mechanism 200, the bearing and the heating element 110 are coaxially arranged. Rotating the rotating handle 337, the heating element 110 can rotate along its central axis. Preferably, the fixing plate 336 can move along the first direction to adjust the relative position between the heating element 110 and the temperature measuring element 400.

[0092] Furthermore, the extending direction of the pressing assembly 320 is perpendicular to the first direction and the second direction, so as to avoid the movement of the heating element 100 along the first direction or the second direction in the extending direction of the pressing assembly 320, which may cause a change in the telescopic state of the pressing assembly 320, such as over-compressing the pressing assembly 320 or directly exceeding the length range of the pressing assembly 320, and further adjusting the relative position between the pressing assembly 320 and the heating element 110 is required.

[0093] According to another specific embodiment of the present invention, the temperature measuring system further includes a second displacement mechanism 340. The pressing assembly 320 is connected to the bracket 310 through the second displacement mechanism 340. The position of the pressing assembly 320 can be moved through the second displacement mechanism 340 to facilitate the measurement of different areas on the surface of the heating element 110.

[0094] According to another specific embodiment of the present invention, through the second displacement mechanism 340, the second displacement mechanism 340 can be provided with slide rails extending along the first direction and / or the second direction. The pressing assembly 320 is connected to the bracket 310 in a sliding connection manner, and the position of the pressing assembly 320 can be moved along the first direction and / or the second direction.

[0095] Further, a plurality of pressing assemblies 320 may be provided. Each pressing assembly 320 is connected to the bracket 310 through a separate slide rail and can move independently along the first direction and / or the second direction.

[0096] Similarly, the extending direction of the pressing assembly 320 is preferably perpendicular to the first direction and the second direction to prevent the second displacement mechanism 340 from driving the pressing assembly 320 to move in the extending direction of the pressing assembly 320.

[0097] According to another specific embodiment of the present invention, as Figure 7 shown, the second displacement mechanism 340 includes an annular guide rail 341. The first end of the pressing assembly 320 is connected to the annular guide rail 341 and can move along the annular guide rail 341. The central axis of the annular guide rail 341 is arranged along the first direction. Preferably, the annular guide rail 341 is arranged substantially coaxially with the heating element.

[0098] Further, a plurality of pressing assemblies 320 may be arranged in the same slide rail to measure different regions on the surface of the heating element 110.

[0099] Furthermore, the annular guide rail 341 may also be connected to the bracket 310 in a sliding manner so as to move relative to the bracket 310 along the first direction.

[0100] Still further, a plurality of annular guide rails 341 may be provided. The plurality of annular guide rails 341 may be fixedly connected or independently arranged and are independently and slidably connected to the bracket 310.

[0101] According to another specific embodiment of the present invention, as Figure 8 shown, it further includes a guiding mechanism 360 for the temperature measuring element 400 to guide the temperature measuring element 400 to the surface of the heating element 110 and prevent the temperature measuring element 400 from being bent. The number of the guiding mechanisms 360 for the temperature measuring element 400 is not limited, and the number of the guiding mechanisms 360 for the temperature measuring element 400 may be set according to the number of the temperature measuring elements 400.

[0102] Further, the guiding mechanism 360 may be a telescopic tube that can be telescoped along the first direction, which is convenient for adjusting the position of the temperature measuring element 400 according to the position of the heating element 110 or the change of the area to be measured.

[0103] Further, the guiding mechanism 360 is connected to the bracket 310 through a third displacement mechanism 350, and the position of the guiding mechanism 360 can be moved through the third displacement mechanism 350.

[0104] Further, the third displacement mechanism 350 may include a C-shaped chute 351 that extends along the second direction, and the guiding mechanism 360 is slidable along the C-shaped chute 351.

[0105] Further, the third displacement mechanism 350 is slidably connected to the bracket 310. The bracket 310 is provided with a first chute that extends along the third direction, and the third displacement mechanism 350 is slidable along the third direction. The third direction is perpendicular to the first direction and the second direction.

[0106] Specifically, the third displacement mechanism 350 further includes a connecting member, a slider, and a bolt. One end of the connecting member is connected to the C-shaped chute 351, and the connecting member is provided with a through hole for the bolt to be inserted. The first chute is provided with an opening that extends along the third direction, and the width of this opening along the second direction is smaller than the width of the first chute itself. The slider is located in the first chute, and the outer shape of the slider matches the chute, so that the slider can only slide along the extending direction of the chute and cannot rotate in the first chute. Also, due to the small opening of the first chute, the slider cannot be directly taken out from the opening of the first chute. The slider is provided with a threaded hole that matches the bolt. The bolt passes through the through hole on the connecting member and the opening of the first chute and is screwed into the threaded hole on the slider. When the bolt is tightened, the connecting member can be pressed against the outside of the first chute, and thus the C-shaped chute 351 can be fixed on the bracket 310. When the bolt is loosened, the connecting member can be slid along the third direction, thereby driving the C-shaped chute 351 to slide along the third direction.

[0107] Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in connection with specific embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A temperature measurement system for a heating element, characterized in that, Comprising: A heating element fixing mechanism for fixing a heating element, where the heating element is a heating element for an aerosol generating device. The temperature measurement system further includes a first displacement mechanism, and the first displacement mechanism is connected to the heating element fixing mechanism, and the position of the heating element can be moved through the first displacement mechanism; A temperature measurement element for measuring the temperature of the heating element; A temperature measurement element fixing mechanism, including a bracket and a pressing assembly. The pressing assembly includes a first end and a second end. An insulating portion is provided at the second end of the pressing assembly. The pressing assembly presses the temperature measurement element against the surface of the heating element through the insulating portion. The temperature measurement system further includes a second displacement mechanism. The pressing assembly is connected to the bracket through the second displacement mechanism, and the position of the pressing assembly can be moved through the second displacement mechanism; The second displacement mechanism includes an annular guide rail. The first end of the pressing assembly is connected to the annular guide rail and can move along the annular guide rail. Wherein, the central axis of the annular guide rail is arranged in a first direction, and the first direction is the extending direction of the heating element.

2. The temperature measurement system of the heating element as described in claim 1, characterized in that, The annular guide rail can move relative to the bracket in the first direction.

3. The temperature measurement system of the heating element as described in claim 1 or 2, characterized in that The insulating portion includes an elastic insulating portion, and the elastic insulating portion contacts the temperature measurement element.

4. The temperature measurement system of the heating element as described in claim 1 or 2, characterized in that The pressing assembly further includes a pressure rod that can elastically stretch and deform. One end of the pressure rod is connected to the bracket, and the other end is provided with the insulating portion.

5. The temperature measurement system of the heating element as described in claim 4, characterized in that, The pressure rod includes an inner tube, an outer tube and a spring. The outer tube is sleeved outside the inner tube, and both ends of the spring are respectively connected to the inner tube and the outer tube.

6. The temperature measurement system of the heating element as described in claim 1 or 2, characterized in that, Further included is a guiding mechanism for guiding the temperature measurement element to the surface of the heating element.

7. The temperature measurement system of the heating element as described in claim 6, characterized in that, The guiding mechanism is a telescopic tube that can be telescoped in a first direction, and the first direction is the extending direction of the heating element; And / or, the guiding mechanism is connected to the bracket through a third displacement mechanism, and the position of the guiding mechanism can be moved through the third displacement mechanism.

8. The temperature measuring system of the heating element as described in claim 1 or 2, characterized in that Through the first displacement mechanism, the heating element can be moved in a first direction and a second direction respectively, and / or the heating element can be rotated along its central axis. The first direction is the extending direction of the heating element, and the second direction is perpendicular to the first direction.

9. The temperature measurement system of the heating element as described in claim 1 or 2, characterized in that, The temperature measurement element is a thermocouple.

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