Heating tube wiring structure used in heated non-combustible smoke appliances

By directly connecting the heat-insulating pipe, made of heat-insulating material, to the heating pipe in the heated non-combustible smoke appliance, and using positioning pins to achieve precise positioning and a dedicated channel design, the problems of poor heat insulation effect and insufficient connection stability of the heating pipe wiring structure are solved, thereby improving the life of the wiring harness and assembly efficiency, and enhancing the user experience.

CN224440433UActive Publication Date: 2026-07-03MAIJI INTELLIGENT MEDICAL TECHNOLOGY (SUZHOU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAIJI INTELLIGENT MEDICAL TECHNOLOGY (SUZHOU) CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The wiring structure between the heating element and the electronic control module in heated non-combustible smoke appliances suffers from poor heat insulation, insufficient connection stability, and inconvenient assembly, resulting in the wiring harness being susceptible to high temperatures, loose connections, and low production efficiency.

Method used

A wiring structure for heating tubes was designed, in which a heat-insulating tube made of heat-insulating material is directly connected to the heating tube. Precise positioning is achieved through annular stepped grooves and positioning pins, and a dedicated channel is provided to facilitate the arrangement of the wiring harness. The wiring assembly consists of a heat-insulating tube and a connecting tube.

Benefits of technology

It effectively blocks high temperatures from being transmitted to the wire harness, improving the lifespan of the wire harness and the reliability of electrical connections, simplifying the assembly process, and enhancing production efficiency and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wiring structure for a heating tube used in a heated non-combustible smoke appliance. The structure includes a tubular shell, with a heating tube at the front and an electronic control module and battery at the rear. A switch connected to the electronic control module is mounted on the shell. It also includes a wiring assembly consisting of a heat insulation tube and a connecting tube. The heat insulation tube is connected to the heating tube via an annular stepped groove, and its outer annular protrusion engages with a positioning pin on the connecting tube for fixation. A wire hole within the positioning pin allows the wire harness to pass through. This utility model, by optimizing the wiring structure, solves the problems of wire harness susceptibility to high temperatures, loose wiring, and inconvenient assembly in existing technologies. It has the advantages of good heat insulation, structural stability, and efficient assembly.
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Description

Technical Field

[0001] This utility model relates to the field of heated non-combustible smoke appliances, and in particular to a heating tube wiring structure used in heated non-combustible smoke appliances. Background Technology

[0002] In heated tobacco products, the reliability of the electrical connection between the heating element and the electronic control module directly affects the performance and safety of the product. Current wiring structures between the heating element and the electronic control module have the following shortcomings:

[0003] When the heating element is working, it generates high temperature. If the wiring part lacks effective heat insulation, the heat can easily be transferred to the wire harness, which will accelerate the aging of the wire harness insulation layer and even cause short circuit faults.

[0004] The wiring structure lacks precise positioning, which can easily lead to wire harness pulling and misalignment during assembly, resulting in loose wiring and affecting conductivity stability.

[0005] The wiring harness lacks a dedicated channel, requiring additional arrangement and fixing during assembly, which increases production steps and reduces assembly efficiency.

[0006] Therefore, in view of the problems of poor heat insulation, insufficient connection stability and inconvenient assembly in the existing heating tube wiring structure, it is necessary to design a new heating tube wiring structure to solve the above defects. Utility Model Content

[0007] The purpose of this invention is to provide a wiring structure for heating tubes used in heated non-combustible smoke appliances, in order to solve the problems of wire harnesses being easily affected by high temperatures, loose wiring, and low assembly efficiency in the prior art.

[0008] To achieve the above and other related objectives, the technical solution provided by this utility model is: a heating tube wiring structure applied in a heated non-combustible smoke appliance, comprising:

[0009] The housing is configured as a tubular structure;

[0010] A heating element is located in the front section of the housing;

[0011] An electronic control module is located in the rear section of the housing and is electrically connected to the heating element;

[0012] A battery, which is located in the rear section of the housing and is electrically connected to the electronic control module;

[0013] A switch, which is disposed on the housing and electrically connected to the electronic control module;

[0014] The wiring assembly consists of a heat insulation tube and a wiring conduit. The inner circumference of the heat insulation tube near the heating tube is provided with an annular stepped groove, and the end of the heating tube is inserted into the annular stepped groove. The outer circumference of the heat insulation tube is provided with an annular protrusion, and the annular protrusion is provided with a positioning hole. The wiring conduit is sleeved on the outside of the heat insulation tube and its end abuts against the annular protrusion. One side of the wiring conduit is provided with a positioning pin, which is inserted into the positioning hole. The positioning pin is provided with a through hole arranged axially for connecting the wiring harness of the heating tube and the electronic control module.

[0015] A preferred technical solution is that the inner ring of the end of the connecting pipe near the heating tube has a chamfer corresponding to the wire hole.

[0016] A preferred technical solution is as follows: the inner ring of the end of the heat insulation tube away from the heating tube is provided with an annular stepped groove II, the inner diameter of the annular stepped groove II is larger than the inner diameter of the annular stepped groove I, for inserting a filter.

[0017] The preferred technical solution is that the heat insulation pipe is made of heat insulation material.

[0018] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:

[0019] The heat insulation tube is made of heat insulation material and is directly connected to the heating tube through an annular stepped groove. This effectively prevents the high temperature of the heating tube from being transmitted to the wiring harness, avoids aging of the wiring harness due to high temperature, extends the service life of the wiring harness, and improves the safety of the smoking device.

[0020] The wiring conduit achieves precise positioning by engaging with the positioning hole of the insulation tube through the positioning pin, ensuring the structural stability of the wiring assembly, preventing the wiring harness from loosening due to vibration or assembly errors, and ensuring the reliability of the electrical connection.

[0021] The wire hole inside the positioning pin provides a dedicated channel for the wire harness. Combined with the chamfered design of the inner ring of the connector, it facilitates the quick threading and arrangement of the wire harness, reduces assembly steps, and improves production efficiency.

[0022] The annular stepped groove on the heat insulation pipe allows for easy insertion of filter nozzles, expanding the functionality of the structure and improving the user experience. Attached Figure Description

[0023] Figure 1 This is a schematic cross-sectional view of the heated non-combustible smoke device involved in this utility model.

[0024] Figure 2 This is an exploded view of the wiring structure involved in this utility model. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0026] Please see Figures 1-2 It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] like Figure 1 As shown, according to a general technical concept of the present invention, a heating tube wiring structure for use in a heated non-combustible smoke appliance is provided, including a tubular housing 1, a heating tube 2 in the front section of the housing 1, an electronic control module 3 and a battery 4 in the middle and rear sections, a switch 5 electrically connected to the electronic control module 3 on the housing 1, and a wiring assembly 6 composed of a heat insulation tube 61 and a wiring tube 62.

[0030] like Figure 2As shown, the inner ring of the heat insulation pipe 61 near the heating pipe 2 is provided with an annular stepped groove 611. The end of the heating pipe 2 is inserted into the annular stepped groove 611 to achieve a stable connection between the heating pipe 2 and the heat insulation pipe 61. The outer ring of the heat insulation pipe 61 is provided with an annular protrusion 612. The annular protrusion 612 is provided with a positioning hole 613. The wiring pipe 62 is sleeved on the outside of the heat insulation pipe 61 and its end abuts against the annular protrusion 612. A positioning pin 621 is provided on one side of the wiring pipe 62. The positioning pin 621 is inserted into the positioning hole 613 to firmly assemble the wiring pipe 62 and the heat insulation pipe 61. The positioning pin 621 is provided with a through hole 622 that runs through the axial direction. The wire harness connecting the heating pipe 2 and the electrical control module 3 passes through the through hole 622 to achieve orderly wiring.

[0031] like Figure 2 As shown, the inner ring of the wiring conduit 62 near the heating tube 2 has a chamfer 623 corresponding to the wire hole 622, which facilitates the smooth insertion of the wire harness; the inner ring of the insulation tube 61 away from the heating tube 2 has an annular stepped groove 614, the inner diameter of which is larger than the annular stepped groove 611, for inserting a filter; the insulation tube 61 is made of heat insulation materials such as ceramic or high-temperature resistant plastic, which effectively blocks heat transfer.

[0032] During assembly, first insert the heating tube 2 into the annular stepped groove 611 of the heat insulation tube 61, then connect one end of the wire harness to the heating tube 2, and the other end through the wire hole 622 of the wiring tube 62 to connect to the electronic control module 3. Then, put the wiring tube 62 on the outside of the heat insulation tube 61, so that the positioning pin 621 is inserted into the positioning hole 613 to complete the assembly of the wiring assembly 6. Finally, install each component into the corresponding position of the housing 1.

[0033] Therefore, this utility model has the following advantages:

[0034] The heat insulation tube is made of heat insulation material and is directly connected to the heating tube through an annular stepped groove. This effectively prevents the high temperature of the heating tube from being transmitted to the wiring harness, avoids aging of the wiring harness due to high temperature, extends the service life of the wiring harness, and improves the safety of the smoking device.

[0035] The wiring conduit achieves precise positioning by engaging with the positioning hole of the insulation tube through the positioning pin, ensuring the structural stability of the wiring assembly, preventing the wiring harness from loosening due to vibration or assembly errors, and ensuring the reliability of the electrical connection.

[0036] The wire hole inside the positioning pin provides a dedicated channel for the wire harness. Combined with the chamfered design of the inner ring of the connector, it facilitates the quick threading and arrangement of the wire harness, reduces assembly steps, and improves production efficiency.

[0037] The annular stepped groove on the heat insulation pipe allows for easy insertion of filter nozzles, expanding the functionality of the structure and improving the user experience.

[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A heating tube threading structure applied to a heat-not-burn smoking set, characterized in that, include: The housing is configured as a tubular structure; A heating element is located in the front section of the housing; An electronic control module is located in the rear section of the housing and is electrically connected to the heating element; A battery, which is located in the rear section of the housing and is electrically connected to the electronic control module; A switch, which is disposed on the housing and electrically connected to the electronic control module; The wiring assembly consists of a heat insulation tube and a wiring conduit. The inner circumference of the heat insulation tube near the heating tube is provided with an annular stepped groove, and the end of the heating tube is inserted into the annular stepped groove. The outer circumference of the heat insulation tube is provided with an annular protrusion, and the annular protrusion is provided with a positioning hole. The wiring conduit is sleeved on the outside of the heat insulation tube and its end abuts against the annular protrusion. One side of the wiring conduit is provided with a positioning pin, which is inserted into the positioning hole. The positioning pin is provided with a through hole arranged axially for connecting the wiring harness of the heating tube and the electronic control module.

2. The heating tube threading structure applied to a heating-not-burning smoking set according to claim 1, characterized in that: The inner ring of the terminal block near the heating tube has a chamfer corresponding to the wire hole.

3. The heating tube threading structure applied to a heating-not-burning smoking set according to claim 1, characterized in that: The inner circumference of the end of the heat insulation tube away from the heating tube is provided with an annular stepped groove II. The inner diameter of the annular stepped groove II is larger than the inner diameter of the annular stepped groove I, and is used to insert a filter.

4. The heating tube threading structure applied to a heating-not-burning smoking set according to claim 1, characterized in that: The heat insulation pipe is made of heat insulation material.