Plug with temperature detection function
By using a heat-conducting component to enclose the temperature sensor in the plug to form a housing, the problem of the complex structure of existing plugs is solved, achieving the effects of simplified fixation and improved heat conduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGLAN TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-23
AI Technical Summary
The existing plug's protection device has a complex structure, requiring an internal connection structure to fix the temperature sensor, which makes assembly inconvenient.
The temperature sensor is tightly wrapped with a heat-conducting component, which forms a housing with the pin bracket to fix the temperature sensor. No additional structure is required. The heat-conducting component can transfer the temperature of the live wire and improve the heat conduction effect.
The temperature sensor mounting structure has been simplified, improving assembly reliability and thermal conductivity, and enhancing plug stability.
Smart Images

Figure CN224400840U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plug technology, specifically relating to a plug with temperature detection function. Background Technology
[0002] To improve the safety of electrical appliances, protective devices are installed inside the plugs to disconnect the circuit in case of overload or other problems. Patent announcement number CN205724239U provides a power plug with a temperature-controlled switch. This power plug uses a temperature-controlled switch connected in series with the wires. When the plug temperature exceeds the rated temperature, the switch disconnects, thus preventing safety hazards such as fires caused by excessive plug load, poor contact, or overheating of the socket. Existing protective devices require a connection structure inside the plug for fixation, resulting in a complex structure. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a plug with temperature detection function.
[0004] To achieve the above objectives, this utility model discloses a plug with temperature detection function, including an insulating shell, a pin bracket disposed within the insulating shell, pins disposed on the pin bracket and extending out of the insulating shell, a wire connected to the pins, and a contact-type temperature sensor;
[0005] It also includes a heat-conducting component, which is disposed on the pin bracket and tightly wraps the live wire of the conductor. A receiving chamber is provided between the pin bracket and the heat-conducting component, and the temperature sensor is disposed in the receiving chamber and tightly wrapped by the heat-conducting component.
[0006] In one embodiment, the heat-conducting element wraps around the neutral wire of the conductor.
[0007] In another embodiment, the pin bracket is provided with two limiting blocks, which are respectively located on both sides of the temperature sensor and have a gap with the temperature sensor.
[0008] The inner sides of the ends of the two limiting blocks are provided with protrusions, and the protrusions are arranged opposite to the temperature sensor with a gap between them.
[0009] In another embodiment, the heat-conducting element encloses the two limiting blocks and the corresponding protrusions.
[0010] In another embodiment, the heat-conducting element is thermally conductive silicone, which is integrally molded onto the pin bracket.
[0011] In another embodiment, the depth of the containment chamber is less than the length of the temperature sensor.
[0012] In another embodiment, the conductor contains a signal line, one end of which is electrically connected to the temperature sensor, and the other end of which is used for electrical connection to a terminal device.
[0013] In another embodiment, the insulating housing is filled with TPE components.
[0014] In another embodiment, a temperature probe is also included, which is disposed on the insulating housing and has its head extending out of the insulating housing.
[0015] In another embodiment, the insulating housing includes an inner shell and an outer shell that surrounds the inner shell, the inner shell including an inner housing and an inner cover that is detachably connected to the inner housing.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] When the plug is in use, the temperature sensor senses the temperature of the live wire through the heat-conducting component. The temperature sensor transmits the temperature signal to the terminal device. When the temperature is too high, the terminal device automatically cuts off power. The heat-conducting component not only serves as a structural component for transmitting the live wire temperature but also forms a housing between itself and the plug pin bracket. The temperature sensor is housed within this housing and tightly encased by the heat-conducting component, ensuring a secure installation. The housing between the heat-conducting component and the plug pins secures the temperature sensor, eliminating the need for additional structures and simplifying the mounting process. The tight encasing of the temperature sensor by the heat-conducting component not only improves assembly reliability but also enhances thermal conductivity between the heat-conducting component and the temperature sensor. Furthermore, the tight encasing of the heat-conducting component on the live wire further improves its stability. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the plug with temperature detection function in the embodiment;
[0019] Figure 2 for Figure 1 A three-dimensional exploded view of a plug with temperature detection function;
[0020] Figure 3 This is a structural schematic diagram of the pin bracket and heat-conducting component;
[0021] Figure 4 This is a three-dimensional structural diagram of the pin bracket;
[0022] Insulating housing 100; outer shell 110; inner shell 121; inner cover 122; TPE part 130;
[0023] Plug bracket 200; Limiting block 210; Protrusion 211;
[0024] Temperature sensor 300;
[0025] Thermal conductive component 400;
[0026] Capacity: 500;
[0027] Signal line 600;
[0028] Temperature probe 700;
[0029] Wire 800; Live wire 810; Neutral wire 820; Ground wire 830;
[0030] Pin 900. Detailed Implementation
[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] A plug with temperature detection function, see Figures 1-4 It includes an insulating housing 100, a pin bracket 200 disposed within the insulating housing 100, three pins 900 disposed on the pin bracket 200 and extending out of the insulating housing 100, a three-core wire 800 (containing a live wire 810, a neutral wire 820, and a ground wire 830) connected to the pins, and a contact-type temperature sensor 300. The connection structure between the pin bracket 200 and the insulating housing 100, and between the pins and the pin bracket 200, adopts an existing structure and will not be described in detail here.
[0033] In this embodiment, the plug also includes a heat-conducting component 400. The heat-conducting component 400 is disposed on the pin bracket 200 and tightly wraps the live wire. A receiving chamber 500 is provided between the pin bracket 200 and the heat-conducting component 400. The temperature sensor 300 is disposed within the receiving chamber 500 and tightly wrapped by the heat-conducting component 400. Thus, when the plug is in use, the temperature sensor 300 can sense the temperature of the live wire through the heat-conducting component 400 and transmit the temperature signal to the terminal device. When the temperature is too high, the terminal device automatically cuts off the power. The heat-conducting component 400 not only serves as a structural component for transmitting the temperature of the live wire, but also forms a receiving chamber 500 between itself and the pin bracket 200. The temperature sensor 300 is disposed within the receiving chamber 500 and tightly wrapped by the heat-conducting component 400, so that the temperature sensor 300 is tightly installed within the receiving chamber 500. The temperature sensor is fixed by the receiving chamber 500 formed between the heat-conducting component 400 and the pin, eliminating the need for other structures and simplifying the fixing structure. The temperature sensor 300 is tightly wrapped by the heat-conducting component 400, which not only improves assembly reliability but also enhances the thermal conductivity between the heat-conducting component 400 and the temperature sensor 300. The heat-conducting component 400 is also tightly wrapped around the live wire, further improving its stability.
[0034] The phrase "the heat-conducting element 400 tightly wraps around the live wire" means that on a segment of the live wire corresponding to the heat-conducting element 400, the heat-conducting element 400 completely covers that segment of the live wire, with the two in perfect contact, and the heat-conducting element 400 exerts slight pressure on the live wire. Similarly, the heat-conducting element 400 tightly wraps around the temperature sensor 300, with the corresponding position of the temperature sensor covered by the heat-conducting element 400, the two in perfect contact, and the heat-conducting element 400 exerts slight pressure on the temperature sensor 300.
[0035] In this embodiment, the heat-conducting component 400 also wraps the neutral wire of the wire, which further improves the stability of the heat-conducting component 400 inside the plug through the neutral wire and the live wire.
[0036] In this embodiment, the pin bracket 200 is provided with two limiting blocks 210, which are respectively located on both sides of the temperature sensor 300 and have a gap between them. Each of the inner surfaces of the ends of the two limiting blocks 210 is provided with a protrusion 211, which is positioned opposite to the temperature sensor 300 and has a gap between them. The limiting blocks 210 and protrusions 211 limit the temperature sensor 300, further improving the assembly reliability of the temperature sensor 300.
[0037] In this embodiment, the heat-conducting component 400 is made of thermally conductive silicone, which is integrally molded onto the pin bracket 200 and wraps around two limiting blocks 210 and corresponding protrusions 211. The protrusions 211 corresponding to the two limiting blocks 210 further improve the assembly reliability between the heat-conducting component 400 and the pin bracket 200. The heat-conducting component 400 completely wraps around the limiting blocks 210 and corresponding protrusions 211, ensuring that the heat-conducting component 400 within the limiting blocks 210 and protrusions 211 contacts and limits the contact between the heat-conducting component 400 and the temperature sensor 300, thus both transmitting temperature and fixing the temperature sensor 300.
[0038] In this embodiment, the depth of the receiving chamber 500 is less than the length of the temperature sensor 300, which makes it easier to remove the temperature sensor 300 from the receiving chamber 500.
[0039] In this embodiment, a signal line 600 is provided inside the conductor. One end of the signal line 600 is electrically connected to the temperature sensor 300, and the other end of the signal line 600 is used to electrically connect to the terminal device.
[0040] In this embodiment, the plug also includes a temperature probe 700, which is disposed on the insulating housing 100 and has its head extending out of the insulating housing 100. The signal collected by the temperature probe 700 is also transmitted to the terminal device through the signal line 600.
[0041] In this embodiment, the insulating housing 100 is filled with TPE 130, which can provide cushioning and shock absorption within the insulating housing 100.
[0042] In this embodiment, the insulating housing 100 includes an inner shell and an outer shell 110 that wraps around the inner shell. The inner shell includes an inner housing 121 and an inner cover 122 that is detachably connected to the inner housing 121.
[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A plug with temperature detection function, comprising an insulating shell, a pin bracket disposed within the insulating shell, pins disposed on the pin bracket and extending out of the insulating shell, a wire connected to the pins, and a contact-type temperature sensor, characterized in that: It also includes a heat-conducting component, which is disposed on the pin bracket and tightly wraps the live wire of the conductor. A receiving chamber is provided between the pin bracket and the heat-conducting component, and the temperature sensor is disposed in the receiving chamber and tightly wrapped by the heat-conducting component.
2. The plug with temperature detection function according to claim 1, characterized in that: The heat-conducting component encloses the neutral wire of the conductor.
3. The plug with temperature detection function according to claim 1, characterized in that: The pin bracket is provided with two limiting blocks, which are respectively located on both sides of the temperature sensor and have a gap with the temperature sensor. The inner sides of the ends of the two limiting blocks are provided with protrusions, and the protrusions are arranged opposite to the temperature sensor with a gap between them.
4. The plug with temperature detection function according to claim 3, characterized in that: The heat-conducting component encloses the two limiting blocks and the corresponding protrusions.
5. The plug with temperature detection function according to claim 4, characterized in that: The thermally conductive component is thermally conductive silicone, which is integrally molded onto the pin bracket.
6. The plug with temperature detection function according to claim 1, characterized in that: The depth of the containment chamber is less than the length of the temperature sensor.
7. The plug with temperature detection function according to claim 1, characterized in that: The conductor contains a signal line, one end of which is electrically connected to the temperature sensor, and the other end of which is electrically connected to the terminal device.
8. The plug with temperature detection function according to claim 1, characterized in that: The insulating shell is filled with TPE components.
9. The plug with temperature detection function according to claim 1, characterized in that: It also includes a temperature probe, which is disposed on the insulating housing and has its head protruding from the insulating housing.
10. The plug with temperature detection function according to claim 1, characterized in that: The insulating housing includes an inner shell and an outer shell that surrounds the inner shell. The inner shell includes an inner housing and an inner cover that is detachably connected to the inner housing.