Multi-temperature-control PTC (Positive Temperature Coefficient) heating structure
By integrating temperature detection components and multiple protection mechanisms into the PTC heater, precise temperature control and multi-level safety protection are achieved, which solves the shortcomings of existing PTC heaters in temperature control and safety, optimizes energy efficiency and reduces operating costs.
Patent Information
- Application Number
- CN202423260836.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing PTC heaters are inadequate in terms of temperature control accuracy, system safety, and flexibility, making it difficult to adapt to varying working conditions and extreme situations.
It adopts a multi-temperature control structure, integrating temperature detection components, thermal protectors and temperature fuses, and combines a microcontroller to achieve precise temperature control and multi-level safety protection. The heating power is adjusted in real time by monitoring with a thermistor and using a temperature control box.
It achieves precise temperature control of PTC heaters, provides multiple safety protections, reduces energy waste, optimizes energy efficiency, reduces long-term operating costs, and its modular design facilitates the replacement of protection devices of different specifications.
Smart Images
Figure CN223899339U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PTC heater technology, and in particular to a multi-temperature-controlled PTC heating structure. Background Technology
[0002] In traditional PTC heater applications, the heater typically relies on its own material properties to achieve constant temperature control. While this self-limiting characteristic can prevent overheating to some extent, the lack of precise temperature monitoring and control mechanisms often makes it difficult to adapt to varying operating conditions and precise temperature requirements. Furthermore, a single protection mechanism may not provide sufficient safety in the face of extreme situations or sudden failures. Therefore, existing PTC heaters have limitations in terms of temperature control accuracy, system safety, and application flexibility. Utility Model Content
[0003] To address the problems existing in the prior art, this utility model provides a multi-temperature-controlled PTC heating structure.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] This utility model provides a multi-temperature-controlled PTC heating structure, including:
[0006] PTC heater, temperature control box, temperature detection assembly;
[0007] The temperature detection component is installed on the PTC heater and is used to detect the temperature of the PTC heater.
[0008] The corresponding end of the temperature detection component is also electrically connected to the corresponding end of the temperature control box, and is used to feed back the detected PTC heater temperature information to the temperature control box.
[0009] The temperature control box is detachably mounted on the PTC heater, and the temperature control box integrates a thermal protector and a temperature fuse.
[0010] The corresponding terminals of the thermal protector and the temperature fuse are electrically connected to the corresponding terminals of the PTC heater.
[0011] The thermal protector is used to automatically disconnect the circuit to prevent overheating when the temperature of the PTC heater exceeds a preset safety threshold.
[0012] The temperature fuse is used to melt and disconnect the circuit when the temperature of the PTC heater exceeds its rated temperature.
[0013] Preferably, the temperature control box further includes a bottom shell and a cover plate adapted to the bottom shell; the thermal protector and the temperature fuse are both disposed on the bottom shell.
[0014] Preferably, the bottom shell has a stepped position on its upper part, and the cover plate is placed on the stepped position and is flush with the top of the bottom shell.
[0015] Preferably, the multi-temperature-controlled PTC heating structure further includes a power connector and a power cord connected to the power connector; the power cord is connected to a thermal protector and a thermal fuse respectively.
[0016] Preferably, the temperature detection component includes an NTC connector, an NTC wire connected to the NTC connector, and a thermistor connected to the NTC wire; the thermistor is placed on the PTC heater.
[0017] Preferably, the temperature control box is detachably mounted on the PTC heater by screws.
[0018] Preferably, the temperature control box further includes a microcontroller, the corresponding terminals of which are electrically connected to the corresponding terminals of the thermistor, the thermal protector, and the thermal fuse, respectively.
[0019] The technical solution of this utility model has the following beneficial effects:
[0020] This invention integrates a thermistor to monitor the temperature of a PTC heater in real time and uses a temperature control box to precisely adjust the heating power. This technology can achieve precise control of the PTC heater temperature, meet the temperature requirements of different application scenarios, and has broad application prospects.
[0021] This utility model has multiple protection mechanisms, including a thermal protector 101 and a thermal fuse 102, which provide two levels of safety protection to ensure that the power supply can be cut off in time when the temperature exceeds the preset threshold, preventing overheating and potential fire risks.
[0022] This invention adds a temperature control box and a thermistor to the PTC heater, making temperature control convenient and providing multiple safety features.
[0023] This invention provides precise temperature control, which reduces energy waste, optimizes the energy efficiency of PTC heaters, and lowers long-term operating costs.
[0024] The temperature control box of this utility model adopts a modular design, which makes it easy to disassemble and assemble. At the same time, the thermal protector and thermal fuse are easy to replace. Different temperature requirements can be met by replacing the thermal protector and thermal fuse with different specifications. Attached Figure Description
[0025] Figure 1 This is a front view of the structure of this utility model;
[0026] Figure 2 This is a top view of the structure of this utility model;
[0027] Figure 3 This is a bottom view of the structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the temperature control box structure of this utility model. Detailed Implementation
[0029] 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.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are 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 are not intended to 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 a limitation of this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.
[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0034] Reference Figures 1 to 4 This utility model provides a multi-temperature-controlled PTC heating structure, comprising:
[0035] PTC heater 200, temperature control box 100, temperature detection assembly 300;
[0036] The temperature detection component 300 is installed on the PTC heater 200 and is used to detect the temperature of the PTC heater 200.
[0037] The corresponding end of the temperature detection component 300 is also electrically connected to the corresponding end of the temperature control box 100, and is used to feed back the detected temperature information of the PTC heater 200 to the temperature control box 100.
[0038] The temperature control box 100 is detachably mounted on the PTC heater 200; the temperature control box 100 integrates a thermal protector 101 and a temperature fuse 102; in this embodiment, the temperature control box 100 is easy to install and remove, and the thermal protector 101 and temperature fuse 102 can meet different temperature requirements by replacing them with thermal protectors and temperature fuses of different specifications.
[0039] The corresponding ends of the thermal protector 101 and the thermal fuse 102 are electrically connected to the corresponding ends of the PTC heater 200.
[0040] The thermal protector 101 is used to automatically disconnect the circuit to prevent overheating when the temperature of the PTC heater 200 exceeds a preset safety threshold.
[0041] The temperature fuse 102 is used to melt and disconnect the circuit when the temperature of the PTC heater 200 exceeds its rated temperature.
[0042] Furthermore, the temperature control box 100 also includes a bottom shell 103 and a cover plate 104 adapted to the bottom shell 103; the thermal protector 101 and the temperature fuse 102 are both disposed on the bottom shell 103. The design of the temperature fuse 102 being disposed on the bottom shell 103 enables timely response and automatic circuit disconnection or fuse blowing when the PTC heater 200 overheats, thereby preventing equipment damage and potential safety accidents; the bottom shell 103 has a step position 1030 on the upper part, and the cover plate 104 is placed on the step position 1030 and is flush with the top of the bottom shell 103, ensuring the stability and flatness of the temperature control box 100, and facilitating installation and maintenance.
[0043] Furthermore, the multi-temperature-controlled PTC heating structure also includes a power connector 400 and a power cord 500 connected to the power connector 400; the power cord 500 is connected to the thermal protector 101 and the thermal fuse 102 respectively; the power connector 400 provides a standardized interface, enabling the multi-temperature-controlled PTC heating structure to be easily connected to an external power system, simplifying the installation process. The power cord 500 is responsible for transmitting electrical energy from the external power source to the thermal protector 101 and the thermal fuse 102, ensuring a stable power supply.
[0044] Furthermore, the temperature detection component 300 includes an NTC connector 302, an NTC line 302 connected to the NTC connector 302, and a thermistor 301 connected to the NTC line 302. The thermistor 301 is placed on the PTC heater 200. The thermistor 301 is the core of the temperature detection component 300. It is directly placed on the PTC heater 200 and can sensitively sense the temperature change of the PTC heater 200. The resistance value of the thermistor 301 changes with the temperature. This change can be used to measure the temperature and control the working state of the heater.
[0045] Furthermore, the temperature control box 100 is detachably mounted on the PTC heater 200 by screws 600, making it easy to install and remove.
[0046] Furthermore, the temperature control box 100 also includes a microcontroller (not shown in the figure), whose corresponding terminals are electrically connected to the corresponding terminals of the thermistor 301, the thermal protector 101, and the thermal fuse 102, respectively. Based on the temperature feedback signal provided by the thermistor 301, the microcontroller adjusts the heating power of the PTC heater 200 in real time or shuts down the heating function to maintain the set temperature range, ensuring heating efficiency and safety.
[0047] Working principle of this utility model:
[0048] The thermal protector 101 and the thermal fuse 102 are integrated into the temperature control box 100, and then the temperature control box 100 is fixed to the PTC heater 200 with screws 600. The heat from the PTC heater 200 is transferred to the temperature control box 100 through the temperature detection component 300. The temperature control box 100 controls the thermal protector 101 and the thermal fuse 102 to switch on and off or blow, thereby achieving the purpose of temperature control and protection.
[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A multi-temperature-controlled PTC heating structure, characterized in that, include: PTC heater, temperature control box, temperature detection assembly; The temperature detection component is installed on the PTC heater and is used to detect the temperature of the PTC heater. The corresponding end of the temperature detection component is also electrically connected to the corresponding end of the temperature control box, and is used to feed back the detected PTC heater temperature information to the temperature control box. The temperature control box is detachably mounted on the PTC heater, and the temperature control box integrates a thermal protector and a temperature fuse. The corresponding terminals of the thermal protector and the temperature fuse are electrically connected to the corresponding terminals of the PTC heater. The thermal protector is used to automatically disconnect the circuit to prevent overheating when the temperature of the PTC heater exceeds a preset safety threshold. The temperature fuse is used to melt and disconnect the circuit when the temperature of the PTC heater exceeds its rated temperature.
2. The multi-temperature-controlled PTC heating structure according to claim 1, characterized in that, The temperature control box also includes a bottom shell and a cover plate adapted to the bottom shell; the thermal protector and the temperature fuse are both located on the bottom shell.
3. The multi-temperature-controlled PTC heating structure according to claim 2, characterized in that, The bottom shell has a stepped position on its upper part, and the cover plate is placed on the stepped position and is flush with the top of the bottom shell.
4. The multi-temperature-controlled PTC heating structure according to claim 1, characterized in that, The multi-temperature-controlled PTC heating structure also includes a power connector and a power cord connected to the power connector; the power cord is connected to a thermal protector and a thermal fuse respectively.
5. The multi-temperature-controlled PTC heating structure according to claim 1, characterized in that, The temperature detection component includes an NTC connector, an NTC wire connected to the NTC connector, and a thermistor connected to the NTC wire; the thermistor is placed on the PTC heater.
6. The multi-temperature-controlled PTC heating structure according to claim 5, characterized in that, The temperature control box is detachably mounted on the PTC heater via screws.
7. The multi-temperature-controlled PTC heating structure according to claim 6, characterized in that, The temperature control box also includes a microcontroller, whose corresponding terminals are electrically connected to the corresponding terminals of the thermistor, thermal protector, and thermal fuse, respectively.