一种低能耗热流道加热圈结构
By improving the material and structural design of the hot runner heating coil, and using a combination of high thermal conductivity alloys, insulating ceramic layers, support columns, and heat-conducting rods, the problems of high energy consumption and structural failure of traditional hot runner heating coils have been solved, achieving low energy consumption and high-efficiency temperature control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TENGSHENG PRECISION HOT RUNNER TECHNOLOGY (SUZHOU) CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional hot runner heating coils are energy-intensive and inefficient. Heat concentration leads to large temperature differences, thermal deformation causes structural failure, and energy utilization is low. They also lack effective heat diffusion design.
The heating coil body is made of high thermal conductivity alloy material and covered with an insulating ceramic layer. It features a uniformly distributed support column and heat-conducting rod structure. The heat-conducting rod adopts an I-shaped and honeycomb brazed structure, combined with shape memory alloy crossbars, to increase the heat dissipation area and allow thermal expansion adaptive displacement. It also incorporates distributed temperature sensors to optimize energy consumption.
It achieves uniform heat distribution with low energy consumption, reduces thermal stress concentration, improves energy utilization and heat dissipation efficiency, avoids structural failure, and optimizes temperature control.
Smart Images
Figure CN224521205U_ABST
Abstract
Claims
1. A low energy consumption hot runner heater band structure, characterized by, include: The heating coil body (1) is made of high thermal conductivity alloy material, is arranged in a ring, and its outer surface is covered with an insulating ceramic layer; Multiple evenly distributed support columns (2) extend radially along the inner circumferential sidewall of the heating coil body (1) and are fixedly connected by laser welding. Each support column (2) has a rectangular cross-section mounting platform at its end. Grooves (3) are formed on the mounting platforms of each support column (2). The depth of the groove (3) is 1 / 3 of the thickness of the support column (2), and its inner wall is provided with anti-slip threads. The positioning rod (4) is fixedly embedded in the groove (3) and is made of hard alloy. The axis of the positioning rod (4) forms a 15° tilt angle with the radial direction of the heating coil body (1). Two symmetrically arranged connecting ends (5) are integrated into the two ends of the heating coil body (1), and the connecting ends (5) are provided with quick-connect flanges with threaded holes; A detachable heat-conducting rod (6) is set across at least three support columns (2), and its cross-section is in the shape of an I-beam. The bottom of the heat-conducting rod (6) is fitted with the groove (3) with a clearance. The positioning holes (7) are arranged in an array along the length of the heat-conducting rod (6). The diameter of the holes is 0.1-0.2 mm larger than the diameter of the positioning rod (4), and the spacing between the holes is an integer multiple of the spacing between the support columns (2). A groove (8) runs through the inside of the heat-conducting rod (6), and the inner wall of the groove (8) is provided with a polytetrafluoroethylene wear-resistant coating; The crossbar (9) is made of shape memory alloy, and the two ends of the crossbar (9) are fixed to the ends of the groove (8) by interference fit.
2. The low energy hot runner heater collar structure of claim 1, wherein: The heat-conducting rod (6) includes two parallel horizontal guide rods and a vertical heat dissipation rod that connects the two. The joint between the horizontal guide rods and the vertical heat dissipation rods is formed into a honeycomb-shaped reinforced structure by vacuum brazing.
3. The low energy hot runner heater collar structure of claim 1, wherein: The positioning rod (4) and the positioning hole (7) have a self-locking taper with a taper angle of 3°-5°. When the heat-conducting rod (6) expands due to heat, the taper surface of the positioning rod (4) and the positioning hole (7) form an interference fit.
4. The low energy hot runner heater collar structure of claim 1, wherein: It also includes a distributed temperature sensor, which is embedded in the connection between the heating coil body (1) and the support column (2). The sensor signal line is led out to the connection end (5) through the wiring groove opened in the support column (2).
5. The low energy consumption hot runner heater collar structure in accordance with any one of claims 1 -4, characterized in that: The inner circumferential surface of the heating coil body (1) is provided with spiral guide fins, the height of which is 20% of the thickness of the heating coil body (1), and the spiral angle of the fins is 45°±5°.