Simple heating pipe
By using modular design and a multi-segment heating tube for the heating wire, the problem of easy displacement at the connection end between the heating wire and the temperature sensing wire was solved, improving product quality and production efficiency, and achieving precise temperature control and energy-saving effects.
Patent Information
- Application Number
- CN202422801330.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In the production process of existing heating hoses, the connection between the heating wire and the temperature sensing wire is prone to misalignment, resulting in poor molding, affecting the product qualification rate and making it difficult to repair.
It adopts a modular design, using hard plastic head and tail caps for sealing and fixing, and the heating wire and temperature sensing wire connectors are electrically connected to the PCB board to ensure stability. It also achieves precise temperature control through multi-segment heating wires.
It improves product yield and production efficiency, ensures precise temperature control, reduces defect rate, and has repairability and energy-saving advantages.
Smart Images

Figure CN223615202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and in particular to a simple heating tube. Background Technology
[0002] In routine medical care, medications delivered via intravenous tubing often need to be preheated to near body temperature to reduce cold stimulation of the patient's blood vessels and ensure the normal functioning of the immune system. Currently, heated tubing on the market is mainly divided into two types based on its molding method:
[0003] 1. First, the heating tube body is made by extrusion process, and then the heating wire is connected and the temperature sensor is assembled on this basis, followed by secondary molding.
[0004] 2. The two ends of the heating hose are individually molded, that is, the main body of the heating hose is placed in the silicone mold, uncured silicone material is added, the mold is closed, and then it is vulcanized at high temperature.
[0005] However, existing heating hoses have some shortcomings in the manufacturing process. In particular, the molding process at both ends is problematic. Because the connection between the heating wire and the sensing wire is difficult to secure, it is prone to shifting during molding due to silicone extrusion, resulting in incomplete silicone coverage of the connection and affecting the product's yield. Furthermore, once a defective product appears, repair is almost impossible. Based on these problems, this invention aims to provide a simple heating hose that is easy to manufacture, has good stability, and features a simple structure. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a simplified heating tube, the specific technical solution of which is as follows:
[0007] A simple heating tube includes a heating tube, a connector, a PCB board, and a tail cap and a head cap. The outer surface of the heating tube has a recessed groove to enclose the infusion tubing, while the tail cap and head cap are respectively installed at both ends of the heating tube. The heating tube contains a heating wire and a temperature sensor, whose wires pass through the head cap and connect to the external PCB board. The connector is electrically connected to the PCB board. The entire circuit system is protected by an outer shell consisting of a top and bottom cap, ensuring safety and reliability and facilitating future troubleshooting and maintenance.
[0008] The tail cap and head cap are sealed and fixed to both ends of the heating tube with glue, which effectively prevents the heating wire connector and temperature sensing wire connector from shifting or making poor contact, thus improving the yield rate.
[0009] The tail cap is designed with a barb to make it easy to hang the heating tube on the infusion stand.
[0010] The upper and lower covers can be fixed together by screws, ultrasonic welding, or physical fastening to ensure structural stability and waterproof and dustproof performance.
[0011] The heating wire inside the heating tube is designed in a multi-segment configuration, and the heating power of each segment can be adjusted according to actual needs, thereby achieving more precise temperature control and improving the heating efficiency of the heating wire.
[0012] Compared with existing technologies, this utility model avoids the problem of easy displacement of the connection end between the heating wire and the temperature sensing wire in the traditional molding process through optimized design, thereby reducing the defect rate in the production process and improving production efficiency and product quality.
[0013] This utility model adopts a modular design, which independently encapsulates key components such as connecting pipes, tail caps, and head caps, allowing for repair if product defects occur.
[0014] The heating wire inside the heating tube is designed as a multi-segment, and the heating power of each segment can be adjusted independently. This allows for more precise temperature control based on different usage environments and needs, ensuring stable infusion temperature and reducing irritation to patients. The heating power can be adjusted according to actual needs, avoiding unnecessary energy waste and conforming to modern energy-saving concepts.
[0015] In summary, this utility model not only solves the problems existing in the prior art, but also shows significant advantages in terms of production efficiency, safety, temperature control accuracy, and user experience, and has high practical value and market prospects. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;
[0018] The following are the labeling elements in the figure:
[0019] 1. Connector; 2. Power cord; 3. Lower cover; 4. PCB board; 5. Upper cover; 6. Heating tube; 61. Groove; 7. Tail cover.
[0020] The accompanying drawings have illustrated specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation
[0021] 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, 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.
[0022] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0023] Please see Figure 1 As shown, this embodiment discloses a simplified heating tube, comprising a heating tube 6, a connector 1, a PCB board 4, a tail cap 7, and a head cap. The outer surface of the heating tube 6 is recessed to form a groove 61 that encloses the infusion tube, while the tail cap 7 and head cap are respectively installed at both ends of the heating tube 6. The heating tube 6 contains a heating wire and a temperature sensor, whose wires pass through the head cap and connect to the external PCB board 4. The connector 1 is electrically connected to the PCB board 4. The entire circuit system is protected by a shell composed of an upper cover 5 and a lower cover 3, ensuring safety and reliability and facilitating later troubleshooting and maintenance. The heating tube 6 is connected to the equipment and controller via the connector 1.
[0024] The tail cap 7 and head cap are sealed and fixed to both ends of the heating tube 6 with glue, effectively preventing misalignment and poor contact of the heating wire connector and temperature sensing wire connector, thus improving the yield rate. The tail cap 7 is designed with barbs to facilitate hanging the heating tube 6 on the infusion stand. The upper cover 5 and the lower cover 3 can be fixed together by screws, ultrasonic welding, or physical fastening to ensure structural stability and waterproof and dustproof effects. In other embodiments, the heating wire inside the heating tube 6 is designed as a multi-segment, and the heating power of each segment can be adjusted according to actual needs, thereby achieving more precise temperature control and improving the heating efficiency of the heating wire. For example, a higher power heating wire is set near the tail of the heating tube 6, and a lower power heating wire is set at the head of the heating tube 6. The liquid in the infusion tube flows from the tail to the head of the heating tube 6. The liquid that just enters the heating tube 6 is quickly heated to the preset temperature. Then, when it passes through the head of the heating tube 6, the heating wire at the head keeps the infusion tube warm, and the temperature is finely adjusted and stabilized in a certain range.
[0025] To gain a more thorough and comprehensive understanding of the disclosure of this utility model, its principles will be further explained below in conjunction with its usage.
[0026] The head cover and tail cover 7 have been changed from the existing silicone material to hard plastic material; the original molding process has been changed to assembly molding.
[0027] Both ends of the heating tube 6 are assembled using hard plastic head caps and tail caps 7. At the front end of the heating tube 6, the power cord 2, heating wire, and temperature sensing wire are systematically arranged on the PCB board 4. The PCB board 4 is then fixed inside the plastic upper cover 5 and lower cover 3. During assembly, screws, ultrasonic welding, or physical fastening are used to complete the merging of the upper cover 5 and lower cover 3. The circuit connection process is entirely visual, greatly increasing the possibility of repair and rework should any malfunctions occur.
[0028] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the foregoing claims.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.
[0030] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.
Claims
1. A simple heating tube, characterized in that: The device includes a heating tube (6), a connector (1), a PCB board (4), a tail cap (7), and a head cap. The heating tube (6) has a recessed surface that forms a groove (61) to wrap the infusion tube. The tail cap (7) and the head cap are installed at both ends of the heating tube (6). The heating wire and the wire of the temperature sensor inside the heating tube (6) pass through the head cap and are electrically connected to the PCB board (4). The connector (1) is electrically connected to the PCB board (4). The PCB board (4) is sealed by an upper cover (5) and a lower cover (3).
2. The simplified heating tube according to claim 1, characterized in that: The tail cap (7) and head cap are sealed and fixed to both ends of the heating tube (6) with glue.
3. A simplified heating tube according to claim 1, characterized in that: The tail cap (7) is also provided with a barb.
4. A simplified heating tube according to claim 1, characterized in that: The upper cover (5) and lower cover (3) are fixed by screws, ultrasonic welding or physical fastening.
5. A simplified heating tube according to claim 1, characterized in that: The heating wire inside the heating tube (6) is configured in two or more sections, and the heating power of each section is different.