Dry-burning-resistant NTC (Negative Temperature Coefficient) probe
By using an anti-dry-burning NTC probe in the heating equipment and fixing the NTC sensor with a potting hole and a fastener, the problem of high-temperature damage caused by slow temperature sensing of mechanical temperature controllers is solved, and rapid power cut-off and equipment protection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN YIBISI SENSING TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-17
AI Technical Summary
In existing heating equipment, mechanical thermostats have slow temperature sensing action, which may cause damage to machine components when dry-burning at high temperatures, rendering the equipment unusable.
It adopts an anti-dry-burning NTC probe, and uses glue to fix the NTC temperature sensor by setting a potting hole on the housing, combined with the fixing parts and brackets, to achieve fast and accurate temperature sensing and power control.
It effectively prevents the temperature sensor from shifting due to high-temperature dry burning, ensures sensor stability, and enables timely power cut-off to protect the equipment.
Smart Images
Figure CN224136749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating equipment technology, specifically to an anti-dry-burning NTC probe. Background Technology
[0002] Currently, heating products on the market, such as electric kettles, often experience dry burning during use. Domestic 3C certification requires the installation of mechanical thermostats for mandatory product protection. Due to physical characteristics, the temperature sensing action is slow. When the thermostat activates and cuts off the power, the internal components of the machine may have already malfunctioned or been damaged due to overheating, making it unusable to restart. Utility Model Content
[0003] The purpose of this invention is to provide an anti-dry-burning NTC probe to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an anti-dry-burning NTC probe, comprising a housing, a mounting base on the housing, and a potting hole at the circular part of the mounting base; a probe is disposed in the potting hole, one end of the probe passes through the potting hole and is exposed outside the potting hole, and the lead wire of the probe is fixed to the housing by a fixing member.
[0005] As a preferred technical solution of this utility model: the mounting base is provided with brackets on both sides, and the lead wire is fixed to the brackets by the fixing member.
[0006] As a preferred technical solution of this utility model: the mounting base is further provided with a groove, and the bottom surface of the groove is flush with the upper surface of the bracket.
[0007] As a preferred technical solution of this utility model, the fastener is a nylon cable tie.
[0008] The beneficial effects of this utility model using the above technical solution are as follows: Because of the potting hole, it is easy to fix the probe to the housing with glue after the probe is installed through the potting hole; in addition, by utilizing the advantages of the NTC temperature sensor's sensitive and accurate temperature sensing speed, signals can be transmitted accurately and in real time to control the circuit to cut off the power. In particular, using glue to fix the NTC head and its cooperation with the fixing component can effectively solve the problem in the prior art where high-temperature dry burning easily leads to temperature sensor displacement. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0010] Figure 2 This is a cross-sectional schematic diagram of the main structure of this utility model.
[0011] In the diagram: 1. Housing; 2. Potting hole; 3. Groove; 4. Mounting base; 5. Fixture; 6. Lead wire; 7. Probe; 8. Bracket. Detailed Implementation
[0012] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.
[0013] Please see Figure 1-2 An embodiment of this utility model provides: an anti-dry-burning NTC probe, including a housing 1, a mounting base 4 on the housing 1, and a potting hole 2 at the circular part of the mounting base 4; a probe 7 is provided in the potting hole 2, one end of the probe 7 passes through the potting hole 2 and is exposed outside the potting hole 2, and the lead wire 6 of the probe 7 is fixed to the housing 1 by a fixing member 5.
[0014] In summary, the presence of the potting hole 2 facilitates the use of adhesive to fix the probe 7 to the housing 1 after it is installed, ensuring the stability of the probe 7. Furthermore, leveraging the high sensitivity and accuracy of the NTC temperature sensor, signals can be transmitted precisely and in real-time to control the circuit and cut off the power supply. In particular, using adhesive to fix the NTC probe in conjunction with the fixing component 5 effectively solves the problem of temperature sensor displacement caused by high-temperature dry burning in existing technologies.
[0015] Furthermore, since the mounting base 4 is provided with brackets 8 on both sides, and the lead wire 6 is fixed to the brackets 8 by the fastener 5, the lead wire 6 can be reliably supported and reliably fixed at the same time.
[0016] Furthermore, since the mounting base 4 is also provided with a slot 3, and the bottom surface of the slot 3 is flush with the upper surface of the bracket 8, when the glue hole 2 is filled with glue, the cross-section of the glue can be T-shaped, thereby improving the glue's ability to fix the probe 7.
[0017] Specifically, since the fastener 5 is a nylon cable tie, it makes fixing the lead wire 6 simpler and more convenient.
[0018] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A dry-burn prevention NTC probe, characterized by: Includes a housing (1), on which a mounting base (4) is provided, and a potting hole (2) is provided at the circular part of the mounting base (4); A probe (7) is provided inside the glue-filling hole (2). One end of the probe (7) passes through the glue-filling hole (2) and is exposed outside the glue-filling hole (2). The lead wire (6) of the probe (7) is fixed to the housing (1) by a fixing member (5).
2. The dry-burn prevention NTC probe according to claim 1, characterized in that: The mounting base (4) has brackets (8) on both sides, and the lead wire (6) is fixed to the brackets (8) by the fastener (5).
3. The dry-burn prevention NTC probe according to claim 2, characterized in that: The mounting base (4) is also provided with a slot (3), and the bottom surface of the slot (3) is flush with the upper surface of the bracket (8).
4. The dry-burn prevention NTC probe according to claim 3, characterized in that: The fastener (5) is a nylon cable tie.