Heating uniformity detection device for heating rod
By using a tubular thermal conductor and multiple platinum resistors on the heating rod, the problem of heating uniformity detection of heating rods in the prior art is solved, and high-precision heating uniformity detection is achieved.
Patent Information
- Application Number
- CN202421303419.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The prior art is difficult to effectively detect the heating uniformity of the heating rod, mainly due to the difficulty of the arrangement of direct contact temperature acquisition points, resulting in insufficient number of acquisition points and distribution density.
The heat of the heating rod is transferred to multiple platinum resistors by increasing the number of temperature acquisition points and distribution density, and the heating temperatures at different locations are collected by using the data acquisition components to achieve high-precision detection of the heating uniformity of the heating rod.
By increasing the number and distribution density of temperature collection points, the heating uniformity of the heating rod can be more accurately detected, and the detection accuracy and reliability are improved.
Smart Images
Figure CN222598993U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cigarettes, and more specifically, to a heating uniformity detection device for a heating rod. Background Art
[0002] Heated cigarettes heat tobacco at low temperatures without burning it. During heating, nicotine and flavor substances in the tobacco evaporate to produce smoke. The heating temperature of heated cigarettes is an important factor affecting the smoke characteristics and sensory quality of heated cigarettes.
[0003] In the prior art, the heating temperature of heated cigarettes is detected by directly contacting the heating rod in the smoking device, but in fact, the temperature obtained at each collection point reflects the local temperature of the rod body. Since the heating rod is located in a semi-enclosed narrow space of the smoking device, it is difficult to arrange the direct contact temperature collection points, so the temperature collection points are arranged less, resulting in the inability of the direct contact temperature detection method to detect the heating uniformity of the heating rod. Utility Model Content
[0004] The present application provides a heating uniformity detection device for a heating rod, which transfers the heat of the heating rod to a platinum resistor with the help of a tubular heat conductor, thereby increasing the number and distribution density of temperature collection points with the help of the tubular heat conductor, and collecting the heating temperatures detected by the platinum resistors at different positions through a data acquisition component, thereby performing high-precision detection of the heating uniformity of the heating rod.
[0005] The present application provides a heating uniformity detection device for a heating rod, comprising a tubular heat conductor, a plurality of platinum resistors, a tubular heat-insulating shell, and a data acquisition component;
[0006] A plurality of platinum resistor installation areas are arranged axially at intervals on the outer surface of the tubular heat conductor, each platinum resistor installation area has a shape of a first polygonal prism coaxial with the heating rod, and a platinum resistor is arranged on each outer surface of the first polygonal prism; the heat-insulating shell is arranged on the outer periphery of the tubular heat conductor;
[0007] The data acquisition component includes a temperature conversion module, a communication module and a host computer for detection data processing and display. The platinum resistor is connected to the temperature conversion module through a cable, and the temperature conversion module is connected to the host computer electrical signal through the communication module;
[0008] In working state, the heating rod is inserted into the central hole of the tubular heat conductor.
[0009] Preferably, a transition heat conduction zone is provided between adjacent platinum resistor installation areas, and the shape of the transition heat conduction zone is a second polygonal prism that is coaxial with the first polygonal prism and has the same number of sides, and the size of the second polygonal prism is larger than the first polygonal prism.
[0010] Preferably, the edges of the second polygonal prism are arc-shaped.
[0011] Preferably, the axial dimension of the transition heat transfer zone close to the upper end of the heating rod is larger than that of other transition heat transfer zones.
[0012] Preferably, insulating glue is provided between the platinum resistor and the outer side surface of the corresponding first polygonal prism.
[0013] Preferably, the lower end of the heating rod protrudes from the lower end of the tubular heat conductor, and the lower end of the heat-insulating shell wraps the lower end of the heating rod.
[0014] Preferably, the heat-insulating housing comprises a circular seat body and a plurality of first insulating strips arranged along the circumference of the seat body and extending along the axial direction of the tubular heat conductor, and gaps are provided between adjacent first insulating strips;
[0015] The seat body wraps the lower end of the heating rod.
[0016] Preferably, the heat-insulating housing comprises a plurality of sub-housings, each of which comprises an arc-shaped base and at least one second insulating strip extending from the top surface of the base along the axial direction of the tubular heat conductor;
[0017] After the bases of all the sub-shells are assembled, the lower end of the heating rod is wrapped therein, and gaps are provided between adjacent second insulating strips.
[0018] Preferably, the radial dimension difference between the second polygonal prism and the first polygonal prism is smaller than the thickness of the platinum resistor, and the inner wall of the thermal insulation shell fits with the outer wall of the platinum resistor.
[0019] Preferably, the tubular heat conductor is made of graphene material.
[0020] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.
[0022] Figure 1 A three-dimensional structural diagram of a heating uniformity detection device for a heating rod provided in the present application from a first angle;
[0023] Figure 2 A three-dimensional structural diagram of the heating uniformity detection device of the heating rod provided by the present application from a second angle;
[0024] Figure 3 This is a top view of the heating uniformity detection device for the heating rod provided in the present application. DETAILED DESCRIPTION
[0025] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.
[0026] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.
[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0028] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0029] The present application provides a heating uniformity detection device for a heating rod, which transfers the heat of the heating rod to a platinum resistor with the help of a tubular heat conductor, thereby increasing the number and distribution density of temperature collection points with the help of the tubular heat conductor, and collecting the heating temperatures detected by the platinum resistors at different positions through a data acquisition component, thereby performing high-precision detection of the heating uniformity of the heating rod.
[0030] like Figure 1-3 As shown, the heating uniformity detection device for a heating rod provided in the present application includes a tubular heat conductor 10, a plurality of platinum resistors 20, a tubular insulating shell and a data acquisition component.
[0031] In the working state, the heating rod 30 is installed in the central hole 14 of the tubular heat conductor 10, and the two are coaxial. A plurality of platinum resistor installation areas 12 are arranged on the outer surface of the tubular heat conductor 10 at intervals along the axial direction. The shape of each platinum resistor installation area 12 is a first polygonal prism coaxial with the heating rod 30, and a platinum resistor 20 is arranged on each outer surface of the first polygonal prism. Figure 1-3 In the illustrated embodiment, the first polygonal prism is a quadrilateral prism.
[0032] As an embodiment, an insulating glue is provided between the platinum resistor 20 and the outer side surface of the corresponding first polygonal prism, so as to achieve the connection between the platinum resistor 20 and the platinum resistor installation area 12 .
[0033] A transition heat conduction zone 13 is provided between adjacent platinum resistor installation areas 12. The shape of the transition heat conduction zone 13 is a second polygonal prism that is coaxial with the first polygonal prism and has the same number of sides. The size of the second polygonal prism is larger than the first polygonal prism. That is, in the radial direction, the outer side surface of the second polygonal prism protrudes beyond the outer side surface of the first polygonal prism. A groove is formed between adjacent transition heat conduction zones 13, and the groove is used to position the platinum resistor 20.
[0034] Preferably, the radial dimension difference between the second polygonal prism and the first polygonal prism is smaller than the thickness of the platinum resistor 20. Thus, when the platinum resistor 20 is installed on the platinum resistor installation area 12, the outer side surface of the platinum resistor 20 protrudes from the outer side surface of the transition heat conduction area 13. Figure 3 Therefore, when the tubular heat conductor is installed in the heat-insulating housing, the inner wall of the heat-insulating housing fits with the outer wall of the platinum resistor 20 .
[0035] Preferably, the edges of the second polygonal prism are in arc shape, so that the maximum dimension of the tubular heat conductor is rounded to prevent the edges from damaging other parts.
[0036] Preferably, the axial dimension of the transition heat transfer zone (serving as the upper end of the tubular heat conductor 10 ) close to the upper end (the end with the tip) of the heating rod is larger than that of other transition heat transfer zones.
[0037] As an embodiment, the tubular heat conductor 10 is made of graphene material, which has a high thermal conductivity (small heat loss) and a good heat conduction effect.
[0038] The heat-insulating shell is arranged on the outer periphery of the tubular heat conductor. Figure 1 and 2 As shown, the lower end of the heating rod 30 protrudes from the lower end of the tubular heat conductor 10 , the lower end of the insulating shell wraps the lower end of the heating rod 30 , and the upper part of the insulating shell wraps the outer sides of the tubular heat conductor 10 and the platinum resistor 20 .
[0039] As an embodiment, the heat-insulating shell includes a circular seat body and a plurality of first insulating strips uniformly distributed along the circumference of the seat body, the first insulating strips extending along the axial direction of the tubular heat conductor 10, and gaps are provided between adjacent first insulating strips to provide wire accommodation space for the platinum resistor 20. The seat body wraps the lower end of the heating rod, and the plurality of first insulating strips fit the outer side surface of the platinum resistor 20.
[0040] As another embodiment, the insulating shell includes a plurality of sub-shells, and all the sub-shells are assembled to form a tubular heat conductor 10 to which a platinum resistor is installed. Each sub-shell includes an arc-shaped base and at least one second insulating strip extending from the top surface of the base along the axial direction of the tubular heat conductor. After the bases of all the sub-shells are assembled, the lower end of the heating rod 30 is wrapped inside, and the second insulating strip is fitted with the outer side surface of the platinum resistor 20 corresponding to the position. The sub-shells and the sub-shells and the tubular heat conductor 10 are connected by commonly used mechanical means, such as positioning steps, positioning pins, etc., which are not limited in the present application. After assembly, gaps are provided between adjacent second insulating strips to provide space for accommodating wires for the platinum resistor 20.
[0041] exist Figure 1-3 In the illustrated embodiment, the heat-insulating housing may include two sub-housings of the same structure, each of which is provided with two second insulating strips. It is understandable that multiple sub-housings may also be provided, and the number of second insulating strips on each sub-housing may be set according to actual needs.
[0042] The data acquisition component includes a temperature conversion module, a communication module and a host computer for detecting data processing and display. The platinum resistor 20 is connected to the temperature conversion module through a wire, and the temperature conversion module is connected to the host computer through the communication module.
[0043] When using the heating uniformity detection device of the heating rod of the present application, the heating uniformity detection device is inserted into the heating cigarette accommodating cavity of the smoking device, so that the insulating shell is limited in the heating cigarette accommodating cavity, and the heating rod is inserted into the center hole of the tubular heat conductor. After the connection is stable, turn on the heating function of the smoking device, and the heat of the heating rod is conducted through the tubular heat conductor to reach the platinum resistor. The platinum resistor outputs the corresponding resistance value to the temperature conversion module through the wire. After the temperature conversion module converts the resistance value into the corresponding temperature, it is transmitted to the host computer through the communication module. The host computer displays the heating temperature of different parts on the display screen through icons or curves for user reference. It should be noted that the host computer uses existing technology to process and display temperature information, and this application does not improve the data processing and display technology.
[0044] The present application utilizes a tubular heat conductor to conduct heat instead of direct contact for temperature detection, making the temperature detection device easier to use on the smoking device, and increases the number and density of platinum resistors, which helps to accurately detect the heating uniformity of the heating rod.
[0045] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. A heating uniformity detection device for a heating rod, characterized in that: It includes a tubular heat conductor, a plurality of platinum resistors, a tubular heat-insulating shell, and a data acquisition component; A plurality of platinum resistor installation areas are provided on the outer surface of the tubular heat conductor at intervals along the axial direction, and the shape of each platinum resistor installation area is a first polygonal prism coaxial with the heating rod, and a platinum resistor is provided on each outer surface of the first polygonal prism; the heat-insulating shell is provided on the outer periphery of the tubular heat conductor; The data acquisition component includes a temperature conversion module, a communication module and a host computer for detecting data processing and display, the platinum resistor is connected to the temperature conversion module through a cable, and the temperature conversion module is connected to the host computer through the communication module. In the working state, the heating rod is inserted into the central hole of the tubular heat conductor.
2. The heating uniformity detection device for a heating rod according to claim 1, characterized in that: A transitional heat conduction zone is provided between adjacent platinum resistor installation areas. The shape of the transitional heat conduction zone is a second polygonal prism that is coaxial with the first polygonal prism and has the same number of sides. The size of the second polygonal prism is larger than that of the first polygonal prism.
3. The heating uniformity detection device of the heating rod according to claim 2, characterized in that: The edges of the second polygonal prism are in arc shape.
4. The heating uniformity detection device for a heating rod according to claim 2, characterized in that: The axial dimension of the transition heat transfer zone near the upper end of the heating rod is larger than that of other transition heat transfer zones.
5. The heating uniformity detection device of the heating rod according to claim 1, characterized in that: Insulating glue is provided between the platinum resistor and the outer side surface of the corresponding first polygonal prism.
6. The heating uniformity detection device of the heating rod according to claim 1, characterized in that: The lower end of the heating rod protrudes from the lower end of the tubular heat conductor, and the lower end of the heat-insulating shell wraps the lower end of the heating rod.
7. The heating uniformity detection device for a heating rod according to claim 6, characterized in that: The heat-insulating shell comprises a circular seat body and a plurality of first insulating strips arranged along the circumference of the seat body and extending along the axial direction of the tubular heat conductor, with gaps being provided between adjacent first insulating strips; The seat body wraps the lower end of the heating rod.
8. The heating uniformity detection device for a heating rod according to claim 6, characterized in that: The heat-insulating housing comprises a plurality of sub-housings, each of which comprises an arc-shaped base and at least one second insulating strip extending from the top surface of the base along the axial direction of the tubular heat conductor; After the bases of all the sub-shells are assembled, the lower end of the heating rod is wrapped therein, and gaps are provided between adjacent second insulating strips.
9. The heating uniformity detection device of the heating rod according to claim 2, characterized in that: The radial dimension difference between the second polygonal prism and the first polygonal prism is smaller than the thickness of the platinum resistor, and the inner wall of the thermal insulation shell is in contact with the outer wall of the platinum resistor.
10. The heating uniformity detection device of the heating rod according to claim 1, characterized in that: The tubular heat conductor is made of graphene material.