An electronic heating smoking article testing apparatus

Abstract

The utility model provides an electronic heating smoking set test equipment belongs to electronic heating smoking set test technical field, and it is difficult to measure the internal temperature of heating cavity for the existing test mode. It includes HNB comprehensive test machine body, and the body bevel sets up touch -control screen, and the top test platform fixed U type clamp support, and the inner wall of clamp support is equipped with the clamping plate symmetrically, and the inner wall screw hole of side wall is connected with threaded rod, and the one end of threaded rod is connected with anti -skid screw cap, and the other end is connected with clamping plate through bearing, and the bottom slide block of clamping plate is embedded in the limiting sliding slot of clamp support, the body shell side wall fixed butt joint pipe, the embedded pure copper heat conduction ring in the annular groove of butt joint pipe outer wall, the pure copper heat conduction ring is embedded with micro -thermocouple joint, and the temperature measuring sensor is arranged on the outer wall of body, and the temperature measuring line is connected with pure copper heat conduction ring and temperature measuring sensor, and the butt joint pipe is connected with piston suction pump in the body through hose. The equipment can realize stable temperature measurement, and is suitable for electronic heating smoking set heating performance test.

Description

Technical Field

[0001] This utility model relates to the field of electronic heating smoke device testing technology, and in particular to an electronic heating smoke device testing device. Background Technology

[0002] In the production and research and development of electronic heated smoking devices, heating performance testing is a crucial step.

[0003] Currently, there are two common methods used in the industry to test the heating performance of such products: one is to use an infrared thermometer, and the other is to directly insert a thin-wire thermocouple into the smoke device. Using an infrared thermometer is difficult because the structure of the smoke device's cavity makes it hard to measure the true temperature inside the heating chamber, limiting the data's reference value. Directly inserting a thin-wire thermocouple is also prone to problems, as it's difficult to maintain a constant pressure contact between the thermocouple and the heating element.

[0004] To address the aforementioned problems, this utility model document proposes a testing device for electronic heating smoke appliances. Utility Model Content

[0005] This invention provides a testing device for electronic heating smokers, which solves the problem that existing testing methods are difficult to measure the internal temperature of the heating chamber.

[0006] This utility model provides the following technical solution: An electronic heating smoke appliance testing device, comprising: The HNB integrated tester body has a touch screen installed on its inclined surface. A U-shaped clamp is fixedly installed on the top of the test platform on the HNB integrated tester body. Two clamping plates are symmetrically arranged on the inner wall of the U-shaped clamp. A connecting pipe is fixedly installed on the side wall of the shell of the HNB integrated tester body. Multiple annular grooves are equidistantly arranged on the outer wall of the connecting pipe. A corresponding pure copper heat-conducting ring is embedded and fixed in the annular groove.

[0007] In one possible design, two internally threaded holes are symmetrically arranged on the side wall of the U-shaped clamp. The internally threaded holes are internally threaded with matching threaded rods. One end of the threaded rod passes through the outer wall of the U-shaped clamp and is fixedly provided with an anti-slip cap. The other end of the threaded rod passes through the inner wall of the U-shaped clamp and is rotatably connected to the center of the outer wall of the corresponding clamping plate through a bearing.

[0008] In one possible design, the bottom of the clamping plate is symmetrically fixed with two sliders to prevent it from rotating, and the bottom of the inner wall of the U-shaped clamp is provided with the same limiting groove for sliding connection of the two sliders.

[0009] In one possible design, a corresponding miniature thermocouple connector is embedded in the center of the outer wall of the pure copper heat-conducting ring.

[0010] In one possible design, temperature sensors, with the same number of pure copper heat-conducting rings, are fixedly installed on the outer wall of the housing of the HNB integrated testing machine body. The other end of the temperature measuring wire corresponding to the temperature sensor passes through the inner wall of the connecting pipe and is connected to the corresponding pure copper heat-conducting ring.

[0011] In one possible design, the other end of the connecting pipe is connected to the input end of the piston suction pump built into the HNB integrated test machine body via a hose.

[0012] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0013] The working principle and usage process of this technical solution are as follows: Before use, the electronic heated tobacco device (HNB product) to be tested is pre-treated to ensure it is in a testable state. Then, the mouthpiece end of the device to be tested is inserted into the connecting pipe on the side wall of the HNB integrated testing machine body. The pure copper heat-conducting ring embedded in the annular groove on the outer wall of the connecting pipe forms contact with the mouthpiece end, laying the foundation for subsequent temperature acquisition. Then, the device is stably clamped by adjusting the U-shaped clamp. Rotate the anti-slip cap at one end of the threaded rod connected to the threaded hole on the side wall of the U-shaped clamp. With the help of the threaded engagement between the threaded rod and the threaded hole, the other end of the threaded rod is pushed to move towards the device through the clamp plate connected by the bearing. During the movement of the clamp plate, the two sliders at the bottom slide along the limiting groove at the bottom of the inner wall of the U-shaped clamp, effectively preventing the clamp plate from rotating and ensuring that the two clamp plates always remain parallel. Finally, the electronic heated tobacco device is firmly clamped, preventing the device from shaking or shifting during the test. Next, test parameters are set via the touchscreen located on the inclined surface of the HNB comprehensive testing machine, including key parameters such as suction pressure, suction duration, and number of test cycles. After setting, a test start command is issued via the touchscreen, activating the device's built-in piston suction pump. Once the piston suction pump starts, it connects to the connecting pipe via a flexible hose, simulating the suction action of a human smoking. This provides a suction environment consistent with actual usage scenarios for the heating operation of the electronic heated tobacco device. During this process, the heating element inside the electronic heated tobacco device begins to generate heat. This heat is transferred through the mouthpiece to the pure copper heat-conducting ring on the connecting pipe. Due to the excellent thermal conductivity of pure copper, heat can be conducted quickly and evenly. The miniature thermocouple connector embedded in the center of the outer wall of the pure copper heat-conducting ring senses the temperature of the ring in real time. Temperature changes are transmitted via a temperature sensing line to the corresponding temperature sensor. The temperature sensor converts the received temperature signal into a recognizable electrical signal, which is then transmitted to the core control module of the HNB integrated testing machine. The control module processes, analyzes, and stores the temperature data, and simultaneously displays real-time temperature data, suction parameters, and other test information intuitively on the touch screen, allowing operators to monitor the testing process in real time. When the set number of cycles or duration is reached, the equipment automatically stops the piston suction pump, completing a full test cycle. Operators can view the test data report on the touch screen, then reverse the anti-slip cap to loosen the clamp, remove the tested electronic heating device, clean and tidy the equipment, and reset it to prepare for the next test.

[0014] This utility model has the following beneficial effects: This invention achieves indirect heat collection from the heating chamber by setting a pure copper heat-conducting ring on the connecting pipe and utilizing the close contact between the pure copper heat-conducting ring and the nozzle end of the object to be tested. The high thermal conductivity of pure copper ensures the timeliness and accuracy of heat transfer. Combined with the synergistic effect of the miniature thermocouple connector and the temperature sensor, it can effectively obtain the real temperature data inside the heating chamber.

[0015] This invention utilizes a clamping mechanism comprised of a U-shaped clamp, a clamping plate, a threaded rod, a slider, and a limiting groove. This mechanism enables the secure clamping of electronically heated smoking devices. The cooperative structure between the slider and the limiting groove prevents the clamping plate from rotating, ensuring the stability of the device's position during clamping. The threaded adjustment structure of the threaded rod controls the clamping force of the clamping plate, fundamentally preventing measurement position shifts caused by device movement or changes in contact pressure during testing. This significantly improves the stability and accuracy of temperature measurements. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an electronic heating smoke device testing equipment provided in an embodiment of the present utility model; Figure 2A schematic diagram of a U-shaped clamp structure for an electronic heating smoke device testing equipment provided in this embodiment of the present invention; Figure 3 A schematic diagram of the connecting pipe structure of an electronic heating smoke appliance testing device provided in this embodiment of the present invention; Figure 4 This is a schematic diagram of the separation structure of the pure copper heat-conducting ring and the connecting pipe of an electronic heating smoke device provided in an embodiment of this utility model.

[0017] Reference numerals in the attached diagram: 1. HNB integrated testing machine body; 2. Touch screen; 3. Test platform; 4. U-shaped clamp; 5. Clamping plate; 6. Internal threaded hole; 7. Threaded rod; 8. Anti-slip cap; 9. Slider; 10. Limiting groove; 11. Connecting pipe; 12. Annular groove; 13. Pure copper heat-conducting ring; 14. Miniature thermocouple connector; 15. Temperature measuring wire; 16. Temperature sensor; 17. Piston suction pump. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0021] Please refer to Figure 1-4 A testing device, comprising: The HNB integrated testing machine body 1 and the testing platform 3 are fixed to the end face of the HNB integrated testing machine body 1 by bolts. The U-shaped clamp 4 is fixed to the top center of the testing platform 3 by welding, with its opening facing horizontally to accommodate the placement of the tobacco device to be tested. The two side walls of the U-shaped clamp 4 are symmetrically machined with internal threaded holes 6. The threaded rod 7 forms a threaded engagement with the internal threaded holes 6. One end of the threaded rod 7 extends to the outer side of the outer wall of the U-shaped clamp 4. The anti-slip nut 8 is fitted onto this end by a tight fit. Rotating the anti-slip nut 8 can directly drive the threaded rod 7. The threaded rod 7 rotates synchronously, and the other end of the threaded rod 7 passes through the inner wall of the U-shaped clamp 4. The end of the threaded rod 7 is rotatably connected to the center of the outer wall of the clamp 5 through a deep groove ball bearing. The inner ring of the deep groove ball bearing is interference-fitted with the threaded rod 7, and the outer ring is interference-fitted with the pre-set mounting hole of the clamp 5. The bottom ends of the clamp 5 are respectively fixed with sliders 9 by screws. The bottom of the inner wall of the U-shaped clamp 4 is correspondingly machined with a limiting groove 10. The slider 9 is slidably embedded in the limiting groove 10, so that the clamp 5 can only move along the length of the limiting groove 10 and cannot rotate or deviate.

[0022] The connecting pipe 11 is vertically fixed to the side wall of the HNB integrated testing machine body 1 by welding. The axis of the connecting pipe 11 is horizontally set, with one end extending to the outside of the HNB integrated testing machine body 1 to connect with the mouthpiece of the receiving tobacco device, and the other end extending to the inside of the HNB integrated testing machine body 1. Multiple annular grooves 12 are machined at equal intervals on the outer wall of the connecting pipe 11. Pure copper heat-conducting rings 13 are embedded in the corresponding annular grooves 12. The inner wall of the pure copper heat-conducting ring 13 is in close contact with the outer wall of the connecting pipe 11 and is fixed by brazing to ensure that the connection between the two is firm and the heat conduction path is unobstructed. A circular mounting hole is machined in the center of the outer wall of the pure copper heat-conducting ring 13. A miniature thermocouple connector 14 is embedded in the mounting hole and fixed by thermally conductive adhesive to ensure that the miniature thermocouple connector 14 and the pure copper heat-conducting ring 13 are in full contact to improve the temperature measurement sensitivity.

[0023] Multiple temperature sensors 16 are fixedly installed on the outer wall of the HNB integrated tester body 1 at the position corresponding to the pure copper heat-conducting ring 13 via a bracket. The temperature sensors 16 are platinum resistance sensors, and their number is consistent with that of the pure copper heat-conducting ring 13 and they correspond one-to-one. Temperature measuring wires 15 are welded to the signal output end of the temperature sensors 16. The temperature measuring wires 15 are high-temperature resistant shielded wires. The end of the wire away from the temperature sensor 16 passes through the reserved wire hole on the side wall of the HNB integrated tester body 1, and then passes through the preset through hole on the side wall of the connecting pipe 11 to extend to the inner side of the inner wall of the connecting pipe 11. Finally, it is welded to the side wall of the pure copper heat-conducting ring 13. The weld is wrapped with heat shrink tubing to achieve insulation protection.

[0024] The touch screen 2 is fixed on the inclined surface of the HNB integrated tester body 1. The signal interface of the touch screen 2 is connected to the signal input terminal of the core control module inside the HNB integrated tester body 1 via an HDMI data cable. The core control module uses an STM32 series microcontroller and is fixedly installed on the mounting plate inside the HNB integrated tester body 1. The piston suction pump 17 is fixed to the bottom of the HNB integrated tester body 1 by bolts. Its input terminal is connected to one end of the connecting pipe 11 extending into the housing through a corrosion-resistant hose. The two ends of the hose are respectively locked to the end of the connecting pipe 11 and the input terminal interface of the piston suction pump 17 by clamps to prevent air leakage during the suction process.

[0025] The core control module of the HNB integrated testing machine 1 has its power input terminal connected to the output terminal of the internal switching power supply module via a wire. The switching power supply module's input terminal is connected to an external 220V AC mains power supply, which, after transformation, rectification, and filtering, outputs a 12V DC voltage. This voltage powers the touchscreen 2, temperature sensor 16, and piston suction pump 17. The temperature sensor 16's power input terminal is connected to the 12V output terminal of the switching power supply module via a wire, and its signal output terminal is connected to the ADC acquisition pin of the core control module via a shielded wire to transmit the temperature signal. The two terminals of the miniature thermocouple connector 14 are connected to the temperature sensor... The two core wires of line 15 are soldered separately, and the other end of temperature measuring line 15 is connected to the signal input terminal of temperature sensor 16 to form a complete temperature measuring signal link. The motor control terminal of piston suction pump 17 is connected to the IO output pin of core control module through relay. Core control module controls the relay to turn on and off by outputting high and low levels, thereby realizing the start and stop control of piston suction pump 17. The power input terminal of touch screen 2 is directly connected to the 12V output terminal of switching power supply module. An additional USB data cable is connected between its data transmission terminal and core control module to realize the transmission of parameter setting instructions and the feedback of test data.

[0026] During actual operation, the HNB product under test is pre-processed to ensure that its power supply is normal and the nozzle end is free of impurities. The nozzle end of the product under test is aligned with the end of the connector 11 extending to the outside and inserted, so that the outer wall of the nozzle end is in close contact with the pure copper heat-conducting ring 13 on the connector 11. The main body of the product under test is placed on the test table 3, and the anti-slip caps 8 on both sides are rotated simultaneously, which drives the threaded rod 7 to move inward along the internal threaded hole 6. The threaded rod 7 pushes the clamping plate 5 closer to the product under test until the inner walls of the two clamping plates 5 are in close contact with the side walls of the product under test. At this time, the slider 9 slides synchronously within the limiting groove 10 to ensure that the clamping plate 5 holds the smoking device stably. The preset suction pressure, suction time and number of test cycles are input through the touch screen 2. After input, click the start icon on the touch screen 2. The touch screen 2 transmits the start signal to the core control module through the HDMI data cable. After receiving the signal, the core control module outputs a high level to control the relay to engage, and the piston suction pump 17 is powered on and started. Negative pressure is generated through the hose and the connecting pipe 11 to simulate the suction action of a human smoking. The heating element inside the product under test generates heat when powered on. The heat is transferred to the pure copper heat-conducting ring 13 through the suction nozzle. The high thermal conductivity of pure copper allows the heat to be quickly conducted to the miniature thermocouple connector 14. The miniature thermocouple connector 14 converts the temperature signal into a voltage signal, which is transmitted to the temperature sensor 16 through the temperature measuring wire 15. The temperature sensor 16 converts the voltage signal into a digital signal and transmits it to the core control module. The core control module processes and stores the temperature data and feeds back the real-time temperature data, current suction pressure, and remaining test count to the touch screen 2 via the HDMI data cable for display. When the test reaches the preset number of cycles or duration, the core control module outputs a low level to control the relay to disconnect, and the piston suction pump 17 stops working. The operator can retrieve the complete test data report through the touch screen 2. Then, the anti-slip caps 8 on both sides are rotated in the opposite direction, which moves the threaded rod 7 outward. The clamp 5 then releases the product under test, and the product under test is pulled out of the connector 11. The end of the connector 11 and the surface of the test platform 3 are wiped with a lint-free cloth, completing the reset of one test cycle.

[0027] This application can be used for testing electronic heating smoke appliances, or for other fields applicable to this application.

[0028] An electronic heating smoke appliance testing device is used in the field of electronic heating smoke appliance testing. The structure of this embodiment is basically the same as that of the aforementioned embodiments, except that: Please refer to Figure 1 The HNB integrated testing machine body 1 has rubber feet fixed at the four corners of its bottom, which prevents it from slipping and helps to improve the stability of the equipment placement.

[0029] However, as is well known to those skilled in the art, the working principles and wiring methods of the HNB integrated tester body 1, the miniature thermocouple connector 14, and the temperature sensor 16 are all conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0030] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0031] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A testing device for electronically heated smoking appliances, characterized in that, include: The HNB integrated test machine body (1) has a touch screen (2) installed on its inclined surface. A U-shaped clamp (4) is fixedly installed on the top of the test platform (3) on the HNB integrated test machine body (1). Two clamps (5) are symmetrically arranged on the inner wall of the U-shaped clamp (4). A connecting pipe (11) is fixedly installed on the side wall of the shell of the HNB integrated test machine body (1). Multiple annular grooves (12) are equidistantly arranged on the outer wall of the connecting pipe (11). A corresponding pure copper heat-conducting ring (13) is embedded and fixed in the annular groove (12).

2. The electronic heating smoke set testing device according to claim 1, characterized in that, Two internal threaded holes (6) are symmetrically arranged on the side wall of the U-shaped clamp (4). The internal threaded holes (6) are internally threaded with matching threaded rods (7). One end of the threaded rod (7) passes through the outer wall of the U-shaped clamp (4) and is fixedly provided with an anti-slip cap (8). The other end of the threaded rod (7) passes through the inner wall of the U-shaped clamp (4) and is rotatably connected to the center of the outer wall of the corresponding clamp (5) through a bearing.

3. The electronic heating smoke set testing device according to claim 2, characterized in that, The bottom of the clamp (5) is symmetrically fixed with two sliders (9) to prevent it from rotating, and the bottom of the inner wall of the U-shaped clamp (4) is provided with the same limiting groove (10) for sliding connection of the two sliders (9).

4. The electronic heating smoke set testing device according to claim 1, characterized in that, A corresponding miniature thermocouple connector (14) is embedded in the center of the outer wall of the pure copper heat-conducting ring (13).

5. The electronic heating smoke set testing device according to claim 4, characterized in that, The outer wall of the HNB integrated testing machine body (1) is fixedly equipped with temperature sensors (16) in the same number as pure copper heat-conducting rings (13). The other end of the temperature measuring line (15) corresponding to the temperature sensor (16) passes through the inner wall of the connecting pipe (11) and is connected to the corresponding pure copper heat-conducting ring (13).

6. The electronic heating smoke set testing device according to claim 1, characterized in that, The other end of the connecting pipe (11) is connected to the input end of the piston suction pump (17) built into the HNB integrated test machine body (1) via a hose.

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