Integrated double-resistor water temperature sensor

Abstract

The utility model discloses an integrated double-resistor water temperature sensor, which comprises a butt joint pipe and a sensor body, two ends of the butt joint pipe are respectively provided with a pipeline butt joint, the sensor body comprises a shell and two thermistors, the lower end of the shell is fixedly connected with the middle part of the butt joint pipe, and a solid part is arranged in the middle part of the shell. Two positive conducting rods and two negative conducting rods are installed in the solid part, the two thermistors are both located in a butt joint pipe, and the shell and the butt joint pipe are integrally formed. According to the integrated double-resistor water temperature sensor, the integrated arrangement ensures the sealing performance of the assembly position, and the problems of water leakage and the like are not easy to occur. And the double thermistors are arranged, so that the precision and stability of the sensor are ensured, and the service life of the water temperature sensor is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of water temperature sensors, and particularly relates to an integrated dual-resistance water temperature sensor. Background Art

[0002] A water temperature sensor generally uses a thermistor to sense the temperature of water. 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, leakage is likely to occur 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 leakage after a long time is solved, the thermistor will also be affected by the water flow impact for a long time, and the problem of inaccurate water temperature measurement after a long time of use cannot be solved. Summary of the Utility Model

[0003] To solve the above technical problems, the technical solution adopted by the utility model is: an integrated dual-resistance water temperature sensor, including a butt joint pipe and a sensor body. Pipe docking heads are respectively arranged at both ends of the butt joint pipe. The sensor body includes a shell and two thermistors. The lower end of the shell is fixedly connected to the middle of the butt joint pipe. A solid part is installed in the middle of the shell. Two positive conductive rods and two negative conductive rods are installed inside the solid part. Both thermistors are located inside the butt joint pipe. 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. Two positive plugs and two negative plugs are arranged at the upper end of the shell. 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. The shell and the butt joint pipe are integrally formed.

[0004] As a preference of the above technical solution, the solid part is hermetically connected to the shell.

[0005] As a preference of the above technical solution, a protection pipe is arranged inside the butt joint pipe. The upper end of the protection pipe is fixedly connected to the butt joint pipe and communicates with the inside of the shell. Both thermistors are located inside the protection pipe.

[0006] As a preference of the above technical solution, a left limit ring and a right limit ring integrally formed with the butt joint pipe are arranged on the butt joint pipe. The installation pipe is located between the left limit ring and the right limit ring.

[0007] As a preference of the above technical solution, the butt joint pipe and the installation pipe are integrally formed.

[0008] As a preference of the above technical solution, the butt joint pipe and the protection pipe are integrally formed.

[0009] The beneficial effects of the present utility model are as follows: The integrated dual-resistance water temperature sensor of the present utility model has an integrated setting that ensures the sealing of the assembly position and is not prone to problems such as water leakage. The setting of 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 extending the service life of the water temperature sensor. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is a schematic cross-sectional structural diagram of the present utility model. Specific Embodiments

[0012] 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 creative efforts shall fall within the protection scope of the present utility model.

[0013] 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", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0014] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" 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 internal communication of two elements. 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.

[0015] Such as Figure 1-2As shown in the figure, an integrated dual-resistance water temperature sensor includes a docking pipe 1 and a sensor body. Pipe docking joints 2 are provided at both ends of the docking pipe 1. The sensor body includes a housing 3 and two thermistors 4. The lower end of the housing 3 is fixedly connected to the middle of the docking pipe 1. A solid part 5 is installed in the middle of the housing 3. Two positive conductive rods 6 and two negative conductive rods 7 are installed inside the solid part 5. Both thermistors 4 are located inside the docking pipe 1. One thermistor 4 is connected to one positive conductive rod 6 and one negative conductive rod 7, and the other thermistor 4 is connected to the other positive conductive rod 6 and the other negative conductive rod 7. Two positive plugs 8 and two negative plugs 9 are provided at the upper end of the housing 3. The positive plugs 8 correspond to the positive conductive rods 6 one by one and are connected to the corresponding positive conductive rods 6, and the negative plugs 9 correspond to the negative conductive rods 7 one by one and are connected to the corresponding negative conductive rods 7. The housing 3 and the docking pipe 1 are integrally formed. The dual thermistors 4 improve the service life of the sensor and ensure the stability of the water temperature measurement of the water temperature sensor. The integrally arranged docking pipe 1 and housing 3 improve the processing efficiency and reduce the cost.

[0016] Further, the solid part 5 is hermetically connected to the housing 3. Protrusions are provided on both sides of the solid part 5, and clamping grooves for the protrusions to be inserted into are provided on the housing 3. After the solid part 5 is inserted into the housing 3, the protrusions are inserted into the clamping grooves, and the periphery of the solid part 5 is hermetically connected to the housing 3 with glue.

[0017] Further, a protection pipe 10 is provided inside the docking pipe 1. The upper end of the protection pipe 10 is fixedly connected to the docking pipe 1 and communicates with the inside of the housing 3. Both thermistors 4 are located inside the protection pipe 10. The protection pipe 10 prevents the water flow from directly impacting the thermistors 4 and improves the service life of the thermistors 4.

[0018] Further, a left limit ring 11 and a right limit ring 12 integrally formed with the docking pipe 1 are provided on the docking pipe 1. The installation pipe is located between the left limit ring 11 and the right limit ring 12. The left limit ring 11 and the right limit ring 12 perform position-limiting when the docking pipe 1 is docked with the pipeline.

[0019] Further, the docking pipe 1 and the installation pipe are integrally formed.

[0020] Further, the docking pipe 1 and the protection pipe 10 are integrally formed.

[0021] It is worth mentioning that technical features such as the thermistors involved in the patent application of the present utility model should be regarded as the prior art. The specific structures, working principles, and possible control methods and spatial layout methods involved in these technical features can be selected conventionally in the art and 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.

[0022] 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 efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. An integrated dual-resistance water temperature sensor, characterized in that, It includes a docking pipe and a sensor body. Pipeline docking heads are respectively arranged at both ends of the docking pipe. The sensor body includes a housing and two thermistors. The lower end of the housing is fixedly connected to the middle of the docking pipe. A solid part is installed in the middle of the housing. Two positive conductive rods and two negative conductive rods are installed inside the solid part. Both thermistors are located inside the docking pipe. 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. 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. The housing and the docking pipe are integrally formed.

2. The integrated dual-resistance water temperature sensor according to claim 1, wherein The solid part is hermetically connected to the housing.

3. The integrated dual-resistance water temperature sensor according to claim 1, characterized in that, 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 inside of the housing. Both thermistors are located inside the protection pipe.

4. The integrated dual-resistance water temperature sensor according to claim 1, characterized in that Left and right limit rings integrally formed with the docking pipe are arranged on the docking pipe. The installation pipe is located between the left and right limit rings.

5. The integrated dual-resistance water temperature sensor according to claim 1, wherein The docking pipe and the installation pipe are integrally formed.

6. The integrated dual-resistance water temperature sensor according to claim 3, characterized in that, The docking pipe and the protection pipe are integrally formed.

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