Assembled double-resistor water temperature sensor
Through the assembled dual resistor water temperature sensor design, sealing is ensured using sealing rings and limit rings, protection pipes prevent water flow impact, and dual thermistor settings solve the problems of water leakage and inaccurate measurement of existing water temperature sensors, and improve the stability and life of the sensor.
Patent Information
- Application Number
- CN202422324250.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-21
AI Technical Summary
Existing water temperature sensors are prone to leakage in assembled structures and the thermistor is prone to loosening, resulting in inaccurate measurements. The integrated structure cannot avoid the thermistor being affected by the impact of water flow, and the measurement is inaccurate after long-term use.
The assembled double resistor water temperature sensor design includes docking pipe, sensor body and sealing ring. The thermistor is located in the docking pipe. The sealing is ensured through the sealing ring and limiting ring, and the tube is protected from impact from water flow. The double thermistor is set for backup to improve stability and accuracy.
It achieves low-cost assembly, good sealing and high stability, extends the service life of the water temperature sensor, and ensures measurement accuracy and safety and reliability.
Smart Images
Figure CN223064717U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of water temperature sensors, and particularly relates to an assembled dual-resistance water temperature sensor. Background Art
[0002] A water temperature sensor generally uses a thermistor to sense the water temperature. In addition to the sensor body, the existing water temperature sensors also need to design a connection structure to facilitate access to the water pipe or waterway for temperature measurement. However, for the water temperature sensors with the existing structure, when using an assembled structure, although the cost is low and the processing is convenient, it is easy to leak water after a long time of use, and the thermistor is easily affected by the water flow over time, resulting in the loosening of the thermistor and inaccurate water temperature measurement. When using an integrated structure design, although the problem of easy water leakage after a long time is solved, the thermistor is also affected by the impact of the water flow for a long time, and the problem of inaccurate water temperature measurement after a long time of use cannot be solved. Content of the Utility Model
[0003] To solve the above technical problems, the technical solution adopted by the utility model is: an assembled dual-resistance water temperature sensor, including a docking pipe and a sensor body. Pipe docking heads are respectively arranged at both ends of the docking pipe. An installation pipe is fixedly connected to the middle of the docking pipe. One end of the installation pipe communicates with the inside of the docking pipe, and the other end is provided with an insertion interface. The sensor body includes a housing and two thermistors. The lower end of the housing is solid and is inserted into the installation pipe from the insertion interface. The housing is buckled with the installation pipe. Two positive conductive rods and two negative conductive rods are installed inside the housing. One thermistor is connected to one positive conductive rod and one negative conductive rod, and the other thermistor is connected to the other positive conductive rod and the other negative conductive rod. The thermistors are all located inside the docking pipe. Two positive plugs and two negative plugs are arranged at the upper end of the housing. The positive plugs correspond to the positive conductive rods one by one and are connected to the corresponding positive conductive rods. The negative plugs correspond to the negative conductive rods one by one and are connected to the corresponding negative conductive rods.
[0004] As a preference of the above technical solution, a sealing ring is arranged between the docking pipe and the housing. The sealing ring is located inside the docking pipe and sleeved on the lower end of the housing.
[0005] As a preference of the above technical solution, an annular groove for the sealing ring to be snapped into is arranged at the lower end of the housing.
[0006] As a preference of the above technical solution, a limiting ring is fixedly connected to the housing, and the upper end of the docking pipe abuts against the limiting ring.
[0007] As a preference of the above technical solution, a protection pipe is arranged inside the docking pipe. The upper end of the protection pipe is fixedly connected to the docking pipe and communicates with the installation pipe. The thermistor is located inside the protection pipe.
[0008] Preferably, as the above technical solution, the docking pipe is provided with a left limiting ring and a right limiting ring integrally formed with the docking pipe, and the installation pipe is located between the left limiting ring and the right limiting ring.
[0009] Preferably, as the above technical solution, the docking pipe and the installation pipe are integrally formed.
[0010] Preferably, as the above technical solution, the docking pipe and the protection pipe are integrally formed.
[0011] The beneficial effects of the present utility model are as follows: The assembled dual-resistance water temperature sensor of the present utility model has a low production cost for the assembled structure, a simple and convenient assembly process, ensures the sealing performance of the assembly position, and improves the service life of the water temperature sensor. The setting of the dual thermistors forms a dual-channel, which has better performance than a single resistor. If one is damaged, the other can be used as a spare, with better safety and reliability, ensuring the accuracy and stability of the sensor, and improving the service life of the water temperature sensor. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is a schematic cross-sectional structural diagram of the present utility model. Detailed Embodiments
[0014] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.
[0015] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.
[0016] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0017] As Figure 1-2 shown, an assembled dual-resistance water temperature sensor includes a docking pipe 1 and a sensor body. Pipe docking heads 2 are respectively provided at both ends of the docking pipe 1. An installation pipe 3 is fixedly connected to the middle of the docking pipe 1. One end of the installation pipe 3 communicates with the inside of the docking pipe 1, and the other end is provided with an insertion port 4. The sensor body includes a housing 5 and two thermistors 6. The lower end of the housing 5 is solid and is inserted into the installation pipe 3 from the insertion port 4. The housing 5 is snap-connected to the installation pipe 3. Two positive conductive rods 7 and two negative conductive rods 8 are installed inside the housing 5. One thermistor 6 is connected to one positive conductive rod 7 and one negative conductive rod 8, and the other thermistor 6 is connected to the other positive conductive rod 7 and the other negative conductive rod 8. The thermistors 6 are both located inside the docking pipe 1. Two positive plugs and two negative plugs 10 are provided at the upper end of the housing 5. The positive plugs correspond to the positive conductive rods 7 one by one and are connected to the corresponding positive conductive rods 7, and the negative plugs 10 correspond to the negative conductive rods 8 one by one and are connected to the corresponding negative conductive rods 8. The dual thermistors 6 improve the service life of the sensor and ensure the stability of the temperature measurement of the water temperature sensor.
[0018] Further, a sealing ring 11 is provided between the docking pipe 1 and the housing 5. The sealing ring 11 is located inside the docking pipe 1 and sleeved on the lower end of the housing 5. The sealing ring 11 improves the sealing performance at the connection between the docking pipe 1 and the housing 5 and prevents water leakage.
[0019] Further, an annular groove 12 for the sealing ring 11 to snap into is provided at the lower end of the housing 5. The annular groove 12 restricts the position of the sealing ring 11 and prevents it from falling off.
[0020] Further, a limiting ring 13 is fixedly connected to the housing 5, and the upper end of the docking pipe 1 abuts against the limiting ring 13. The limiting ring 13 is used for limiting during the assembly of the docking pipe 1 and the sensor body, facilitating the quick installation of the thermistors 6 in place.
[0021] Further, a protection pipe 14 is provided inside the docking pipe 1. The upper end of the protection pipe 14 is fixedly connected to the docking pipe 1 and communicates with the installation pipe 3. The thermistors 6 are located inside the protection pipe 14. The protection pipe 14 prevents the water flow from directly impacting the thermistors 6 and improves the service life of the thermistors 6.
[0022] Further, the docking pipe 1 is provided with a left limiting ring 15 and a right limiting ring 16 integrally formed with the docking pipe 1, and the installation pipe 3 is located between the left limiting ring 15 and the right limiting ring 16. The left limiting ring 15 and the right limiting ring 16 are used for limiting when the docking pipe 1 docks with the pipeline.
[0023] Further, the docking pipe 1 and the installation pipe 3 are integrally formed.
[0024] Further, the docking pipe 1 and the protection pipe 14 are integrally formed.
[0025] It is worth mentioning that technical features such as the thermistor involved in the patent application of the present utility model should be regarded as the prior art. For the specific structures, working principles, possible control methods, and spatial arrangement methods of these technical features, conventional selections in the art can be adopted, and they should not be regarded as the inventive points of the patent of the present utility model. The patent of the present utility model will not be further specifically elaborated.
[0026] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present application through logical analysis, reasoning, or limited experiments based on the concept of the present utility model on the basis of the prior art should be within the protection scope determined by the claims.
Claims
1. An assembled dual-resistance water temperature sensor, characterized in that, It includes a docking pipe and a sensor body. Pipe docking joints are respectively provided at both ends of the docking pipe. An installation pipe is fixedly connected to the middle of the docking pipe. One end of the installation pipe communicates with the inside of the docking pipe, and the other end is provided with an insertion port. The sensor body includes a housing and two thermistors. The lower end of the housing is solid and is inserted into the installation pipe from the insertion port. The housing is snap-connected to the installation pipe. Two positive conductive rods and two negative conductive rods are installed inside the housing. One thermistor is connected to one positive conductive rod and one negative conductive rod, and the other thermistor is connected to the other positive conductive rod and the other negative conductive rod. The thermistors are both located inside the docking pipe. Two positive plugs and two negative plugs are provided at the upper end of the housing. The positive plugs correspond to the positive conductive rods one by one and are connected to the corresponding positive conductive rods, and the negative plugs correspond to the negative conductive rods one by one and are connected to the corresponding negative conductive rods.
2. The assembled dual-resistance water temperature sensor according to claim 1, wherein A sealing ring is provided between the docking pipe and the housing. The sealing ring is located inside the docking pipe and sleeved on the lower end of the housing.
3. The assembled dual-resistance water temperature sensor according to claim 2, characterized in that, An annular groove for the sealing ring to be snapped into is provided at the lower end of the housing.
4. The assembled dual-resistance water temperature sensor according to claim 3, characterized in that, A limit ring is fixedly connected to the housing, and the upper end of the docking pipe abuts against the limit ring.
5. The assembled dual-resistance water temperature sensor according to claim 1, wherein A protective pipe is provided inside the docking pipe. The upper end of the protective pipe is fixedly connected to the docking pipe and communicates with the installation pipe. The thermistor is located inside the protective pipe.
6. The assembled dual-resistance water temperature sensor according to claim 1, wherein Left and right limit rings integrally formed with the docking pipe are provided on the docking pipe. The installation pipe is located between the left and right limit rings.
7. The assembled dual-resistance water temperature sensor according to claim 1, wherein, The docking pipe and the installation pipe are integrally formed.
8. The assembled dual-resistance water temperature sensor according to claim 5, characterized in that, The docking pipe and the protective pipe are integrally formed.