Heating tube temperature testing device

Abstract

The utility model discloses a heating tube temperature testing device which is reasonable in design, saves labor cost and improves testing accuracy. The device comprises a carrier and an MCU controller, the carrier is used for placing a heating tube in a matched mode, a tube opening of the heating tube faces the side of the carrier, a moving device is arranged at the side end of the carrier, a driving rod assembly is installed on the moving device, a conical head is arranged at the front end of the driving rod assembly, and the conical head is connected with the MCU controller. A plurality of elastic pieces are arranged on the outer edge of the driving rod assembly in an annular array mode, temperature detectors are arranged at the front ends of the elastic pieces, the moving device is used for driving the driving rod assembly to stretch into a pipe opening of the heating pipe, and the driving rod assembly is used for driving the conical head to retract so as to open the elastic pieces. The temperature measuring device on the elastic sheet is enabled to be in contact with the pipe wall of the heating pipe, and the moving device, the driving rod assembly and the temperature measuring device are electrically connected with the MCU controller. The temperature measuring device is applied to the technical field of temperature measuring devices.

Description

Technical Field

[0001] The utility model relates to a temperature testing device, in particular to a heating tube temperature testing device. Background Art

[0002] Traditional atomized electronic cigarettes have a big difference in taste and experience from real tobacco. The new type of heat-not-burn electronic cigarette, while being very close to the taste and experience of real tobacco, reduces the production of harmful substances through precise temperature control, and is considered to be a relatively perfect electronic cigarette solution. In the heat-not-burn solution, the use of ceramic heating tubes is a relatively simple and reliable heating method, which is widely used. However, there is a problem that is difficult to solve, that is, how to accurately control the temperature of the ceramic body; it is very difficult to add additional temperature sensors in the narrow space of electronic cigarettes, so the temperature is generally measured by the resistance characteristics of the ceramic body itself; however, there are individual differences in the resistance characteristic parameters of the ceramic body, resulting in inaccurate temperature control; therefore, it is necessary to measure the temperature of the heating body of the electronic cigarette. The power is relatively small, generally about 1W-5W. The traditional measurement method is to use a manual temperature measuring pen for measurement, but this measurement method is not only easy to contact poor thermal conductivity, but also consumes labor costs, because the temperature measuring pen needs to be placed on the surface of the heating body for a period of time before it can be measured. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a heating tube temperature testing device which has a reasonable design, saves labor costs and improves testing accuracy.

[0004] The technical solution adopted by the utility model is: the utility model includes a carrier and an MCU controller, the carrier is used to fit and place a heating tube, and the nozzle of the heating tube faces the side of the carrier, the side end of the carrier is provided with a moving device, a driving rod assembly is installed on the moving device, a conical head is provided at the front end of the driving rod assembly, a plurality of elastic sheets are provided in a circular array on the outer edge of the driving rod assembly, a temperature detector is provided at the front end of the elastic sheet, the moving device is used to drive the driving rod assembly to extend into the nozzle of the heating tube, the driving rod assembly is used to drive the conical head to retract, thereby spreading the plurality of elastic sheets, so that the temperature detector on the elastic sheet contacts the tube wall of the heating tube, and the moving device, the driving rod assembly and the temperature detector are all electrically connected to the MCU controller.

[0005] Further, an installation panel is provided at the front end of the mobile device. The drive rod assembly includes a pneumatic rod, a cylinder, and an outer cylinder installed on the installation panel. One end of the pneumatic rod is connected to the cylinder, and the other end of the pneumatic rod slides through the outer cylinder and is connected to the conical head. A plurality of card slots are arrayed on the outer edge of the front end of the outer cylinder. The rear end of the elastic sheet is fixedly installed in the card slot, and the front end of the elastic sheet extends out of the card slot. The temperature detector is a thermocouple or a thermal resistor.

[0006] Further, the mobile device includes a mobile guide rail, a mobile carrier plate, and a mobile driver. A position sensor is provided at the front end of the mobile guide rail. The mobile carrier plate is adaptively installed on the mobile guide rail and is connected to the mobile driver.

[0007] Further, the heating tube temperature testing device further includes a signal conditioning circuit module and an ADC converter. The signal conditioning circuit module includes a common-mode inductor, a capacitor, and an instrumentation amplifier. The temperature detector, the common-mode inductor, the capacitor, the instrumentation amplifier, the ADC converter, and the MCU controller are electrically connected in sequence.

[0008] Further, a push connecting plate is provided at the rear end of the mobile carrier plate. The mobile driver includes a drive base plate, a drive handle rod, a push rod, a bolt, and two hinge plates. A notch is provided in the middle of the drive base plate. Connection supports and sliding socket openings are respectively provided at both ends of the drive base plate. A threaded hole adapted to the bolt is provided at the front end of the push rod. The drive handle rod includes a first handle rod and a second connecting rod located at the lower end of the first handle rod. The second connecting rod is hinged to the connection support. One ends of the two hinge plates are respectively fixed to the intersection of the first handle rod and the second connecting rod through studs. The other ends of the two hinge plates are respectively fixed to the rear end of the push rod through studs. The front end of the push rod passes through the sliding socket opening and is connected to the push connecting plate through the bolt.

[0009] Further, the heating tube is an e-cigarette heating tube. A carrier slot adapted to the e-cigarette heating tube is provided on the carrier. A presser is provided on the carrier. The presser is used to press the e-cigarette heating tube into the carrier slot. An avoidance notch is provided at one end of the carrier slot. The avoidance notch is used to enable the mobile device to drive the drive rod assembly to extend into the pipe orifice of the heating tube. A limit baffle is provided at the other end of the carrier slot. Take-and-place avoidance openings are provided on both sides of the middle of the carrier slot.

[0010] Further, the conical head is made of a low thermal conductivity material.

[0011] The beneficial effects of the present utility model are as follows: 1. By means of the elastic sheet cooperating with the conical head, the temperature measuring device is pressed and fitted onto the pipe wall of the heating pipe, ensuring good contact during the testing process all the time, and improving the accuracy and stability of temperature measurement; 2. The test is convenient and fast. Only by putting the heating pipe of the electronic cigarette into the carrier can the testing device be started, and the temperature measuring device automatically makes contact with the heating pipe for temperature measurement through the moving device and the driving rod assembly, effectively saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a top view of the present utility model;

[0014] Figure 3 is Figure 1 an enlarged schematic view of part A in

[0015] Figure 4 is a schematic structural diagram of the driving rod assembly and the conical head;

[0016] Figure 5 is an exploded view of the driving rod assembly and the conical head;

[0017] Figure 6 is a schematic structural diagram of the carrier;

[0018] Figure 7 is a schematic structural diagram of the mobile driver;

[0019] Figure 8 is a schematic diagram of the temperature measurement circuit principle of the present utility model;

[0020] Figure 9 is a circuit connection principle block diagram of the temperature measuring device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] As Figures 1 to 9 shown, in this embodiment, the present utility model includes a carrier 1 and an MCU controller. The carrier 1 is used to adaptively place the heating pipe 2, and the pipe orifice of the heating pipe 2 faces the side of the carrier 1. A moving device 3 is arranged at the side end of the carrier 1, a driving rod assembly 4 is installed on the moving device 3, a conical head 5 is arranged at the front end of the driving rod assembly 4, four elastic sheets 6 are annularly arrayed along the outer edge of the driving rod assembly 4, a temperature measuring device 7 is arranged at the front end of the elastic sheet 6. The moving device 3 is used to drive the driving rod assembly 4 to extend into the pipe orifice of the heating pipe 2. The driving rod assembly 4 is used to drive the conical head 5 to retract, thereby expanding several elastic sheets 6, so that the temperature measuring device 7 on the elastic sheet 6 contacts the inner pipe wall of the heating pipe 2. The moving device 3, the driving rod assembly 4 and the temperature measuring device 7 are all electrically connected to the MCU controller.

[0022] In this embodiment, an installation panel 30 is provided at the front end of the mobile device 3. The drive rod assembly 4 includes a pneumatic rod 41, a cylinder, and an outer cylinder 42 installed on the installation panel 30. One end of the pneumatic rod 41 is connected to the cylinder, and the other end of the pneumatic rod 41 slides through the outer cylinder 42 and is connected to the conical head 5. A plurality of card slots 421 are arranged in an array along the outer edge of the front end of the outer cylinder 42. The rear end of the elastic sheet 6 is fixedly installed in the card slot 421, and the front end of the elastic sheet 6 extends out of the card slot 421. The temperature detector 7 is a thermocouple or a thermal resistor, and the conical head 5 is made of a low thermal conductivity material; this design improves the mechanical structure of the temperature detector 7. The elastic sheet 6 is used to press and fit the temperature detector 7 onto the inner pipe wall of the heating tube 2, ensuring good contact and allowing for quick replacement of the object to be measured; at the same time, a low thermal conductivity material is used as the fixing device to reduce heat dissipation.

[0023] In this embodiment, the mobile device 3 includes a mobile guide rail 31, a mobile carrier plate 32, and a mobile driver 33. An in-place sensor 34 is provided at the front end of the mobile guide rail 31. The mobile carrier plate 32 is adaptively installed on the mobile guide rail 31 and is connected to the mobile driver 33. The mobile driver 33 is used to drive the mobile carrier plate 32 to move forward, and the in-place sensor 34 is used to ensure the distance that the drive rod assembly 4 on the mobile carrier plate 32 extends into the heating tube 2.

[0024] In this embodiment, the heating tube temperature testing device further includes a signal conditioning circuit module 9 and an ADC converter 10. The signal conditioning circuit module 9 includes a common-mode inductor 91, a capacitor 92, and an instrumentation amplifier 93. The temperature detector 7, the common-mode inductor 91, the capacitor 92, the instrumentation amplifier 93, the ADC converter 10, and the MCU controller 8 are electrically connected in sequence; for the electrical signal acquisition of this design, by improving the traditional thermoresistor / thermocouple temperature measurement scheme, a 24-bit high-precision ADC converter 10 is used to improve the measurement resolution, and a low-noise instrumentation amplifier 93 is used to reduce system noise and provide signal quality; due to the very small electromotive force generated when the temperature detector 7 detects temperature, the thermocouple feeder is relatively long, and there are electromagnetic interferences in the factory working environment and other factors, which affect the temperature measurement accuracy of the temperature detector 7, that is, the thermocouple. A common-mode inductor 91 is added to the traditional thermocouple signal amplification and conditioning circuit. The filter composed of the common-mode inductor 91 and the capacitor 92 can effectively reduce the common-mode and differential-mode noises caused by electromagnetic interference and improve the temperature measurement accuracy.

[0025] In this embodiment, a push connecting plate 35 is provided at the rear end of the movable carrier plate 32. The movable drive 33 includes a drive base plate 331, a drive handle rod 332, a push rod 333, a bolt 334, and two hinge plates 335. A notch is provided in the middle of the drive base plate 331. Connecting supports 3311 and sliding socket openings 3312 are respectively provided at both ends of the drive base plate 331. A threaded hole adapted to the bolt 334 is provided at the front end of the push rod 333. The drive handle rod 332 includes a first handle rod and a second connecting rod at the lower end of the first handle rod. The second connecting rod is hinged to the connecting support 3311. One ends of the two hinge plates 335 are respectively fixed to the intersection of the first handle rod and the second connecting rod by studs. The other ends of the two hinge plates 335 are respectively fixed to the rear end of the push rod 333 by studs. The front end of the push rod 333 passes through the sliding socket opening 3312 and is connected to the push connecting plate 35 by the bolt 334. This design allows the first handle rod to be manually swung to move the movable carrier plate 32.

[0026] In this embodiment, the heating tube 2 is an e-cigarette heating tube. A carrier slot 11 adapted to the e-cigarette heating tube 2 is provided on the carrier 1. A presser 101 is provided on the carrier 1. The presser 101 is used to press the e-cigarette heating tube into the carrier slot 11. An avoidance notch 12 is provided at one end of the carrier slot 11. The avoidance notch 12 is used to enable the moving device 3 to drive the drive rod assembly 4 to extend into the nozzle of the heating tube 2. A limit baffle 13 is provided at the other end of the carrier slot 11. Pick-and-place avoidance openings 14 are provided on both sides of the middle of the carrier slot 11.

[0027] In this embodiment, the working process of the present invention is as follows: The e-cigarette heating tube is manually placed into the carrier slot, and the e-cigarette is pressed into the carrier slot by the presser; the moving device drives the drive rod assembly to extend into the nozzle of the heating tube. Then, the drive rod assembly drives the conical head to retract, thereby expanding several elastic sheets, so that the temperature detectors on the elastic sheets contact the inner tube wall of the heating tube, and then temperature measurement and detection are carried out. After the test is completed, the drive rod assembly resets, then the moving device resets, and then the presser is released, and the e-cigarette heating tube is taken out.

[0028] The present invention is applied to the technical field of temperature measurement of heating tubes.

[0029] Although the embodiments of the present invention are described with actual solutions, they do not constitute a limitation to the meaning of the present invention. For those skilled in the art, modifications to its implementation solutions according to this specification and combinations with other solutions are obvious.

Claims

1. A heating tube temperature testing device, characterized in that: It comprises a carrier (1) and an MCU controller (8), wherein the carrier (1) is adapted to place a heating tube (2), and the nozzle of the heating tube (2) faces the side of the carrier (1), and a moving device (3) is arranged at the side end of the carrier (1), and a driving rod assembly (4) is installed on the moving device (3), and a conical head (5) is arranged at the front end of the driving rod assembly (4), and a plurality of elastic sheets (6) are arranged in a circular array on the outer edge of the driving rod assembly (4), and a temperature detector (7) is arranged at the front end of the elastic sheet (6), and the moving device (3) is used to drive the driving rod assembly (4) to extend into the nozzle of the heating tube (2), and the driving rod assembly (4) is used to drive the conical head (5) to retract, thereby expanding the plurality of elastic sheets (6) so that the temperature detector (7) on the elastic sheet (6) contacts the inner tube wall of the heating tube (2), and the moving device (3), the driving rod assembly (4) and the temperature detector (7) are all electrically connected to the MCU controller (8).

2. A heating tube temperature testing device according to claim 1, characterized in that: The front end of the moving device (3) is provided with a mounting panel (30), the driving rod assembly (4) comprises a pneumatic rod (41), a cylinder and an outer column (42) mounted on the mounting panel (30), one end of the pneumatic rod (41) is connected to the cylinder, the other end of the pneumatic rod (41) slides through the outer column (42) and is connected to the conical head (5), a plurality of slots (421) are arranged in an array on the outer edge of the front end of the outer column (42), the rear end of the elastic sheet (6) is fixedly mounted in the slot (421), and the front end of the elastic sheet (6) extends out of the slot (421), and the temperature detector (7) is a thermocouple or a thermal resistor.

3. A heating tube temperature testing device according to claim 2, characterized in that: The moving device (3) comprises a moving guide rail (31), a moving carrier plate (32) and a moving driver (33); a position sensor (34) is provided at the front end of the moving guide rail (31); the moving carrier plate (32) is adapted to be mounted on the moving guide rail (31) and is connected to the moving driver (33).

4. A heating tube temperature testing device according to claim 1, characterized in that: The heating tube temperature testing device further comprises a signal conditioning circuit module (9) and an ADC converter (10); the signal conditioning circuit module (9) comprises a common-mode inductor (91), a capacitor (92) and an instrument amplifier (93); the temperature detector (7), the common-mode inductor (91), the capacitor (92), the instrument amplifier (93), the ADC converter (10) and the MCU controller (8) are electrically connected in sequence.

5. A heating tube temperature testing device according to claim 3, characterized in that: The rear end of the movable carrier plate (32) is provided with a push connecting plate (35), the movable driver (33) comprises a drive base plate (331), a drive handle rod (332), a push rod (333), a bolt (334) and two hinge plates (335), a notch is provided in the middle of the drive base plate (331), two ends of the drive base plate (331) are respectively provided with a connecting support (3311) and a sliding sleeve (3312), a threaded hole matched with the bolt (334) is provided at the front end of the push rod (333), and the drive handle rod (332) is provided with a push rod (333). 32) comprises a first handle rod and a second connecting rod located at the lower end of the first handle rod, the second connecting rod is hinged on the connecting support (3311), one end of the two hinge plates (335) are respectively fixed to the intersection of the first handle rod and the second connecting rod through studs, the other ends of the two hinge plates (335) are respectively fixed to the rear end of the push rod (333) through studs, the front end of the push rod (333) passes through the sliding sleeve (3312) and is connected to the push connecting plate (35) through the bolt (334).

6. A heating tube temperature testing device according to claim 1, characterized in that: The heating tube (2) is an electronic cigarette heating tube, the carrier (1) is provided with a loading groove (11) adapted to the electronic cigarette heating tube (2), the carrier (1) is provided with a pressing device (101), the pressing device (101) is used to press the electronic cigarette heating tube (2) into the loading groove (11), one end of the loading groove (11) is provided with an avoidance notch (12), the avoidance notch (12) is used to enable the moving device (3) to drive the driving rod assembly (4) to extend into the tube mouth of the heating tube (2), the other end of the loading groove (11) is provided with a limit baffle (13), and both sides of the middle of the loading groove (11) are provided with taking-in and putting-out avoidance openings (14).

7. A heating tube temperature testing device according to claim 1, characterized in that: The conical head (5) is made of a low thermal conductivity material.

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