A temperature sensor specifically designed for water temperature control systems

Abstract

This utility model discloses a dedicated temperature sensor for a water temperature control system, comprising a heat-conducting shell, a temperature sensing module, a filler module, and an encapsulation module. The heat-conducting shell is made of a high thermal conductivity metal material, with a connecting part on the outside and an accommodating cavity with one open end. The temperature sensing module includes a printed circuit board housed within the accommodating cavity and a temperature resistor integrated on the printed circuit board. The wires of the printed circuit board extend towards the open side and protrude from the heat-conducting shell. The filler module includes a filler material filling the accommodating cavity on the other side of the open end. The printed circuit board and the temperature resistor are encapsulated within the filler material, which is a curable high thermal conductivity material and is an insulating material. The encapsulation module is curably filled into the accommodating cavity to encapsulate the temperature sensing module and the filler module within the accommodating cavity. This design enables the dedicated temperature sensor for the water temperature control system to be both accurate and fast-responding.

Description

Technical Field

[0001] This utility model relates to the fields of temperature measurement technology and temperature control technology, and in particular to a temperature sensor specifically designed for water temperature control systems. Background Technology

[0002] Existing water temperature sensors have the following drawbacks: 1. Insufficient sensitivity and slow response: The packaging structure of traditional temperature sensors has thermal inertia, resulting in dynamic temperature measurement delay and an inability to keep up with the temperature changes of the measured unit (such as water). Especially in the plumbing and sanitary ware industry, due to the delayed response of the temperature sensor, the temperature control system cannot detect and adjust for subtle temperature changes in a timely manner, resulting in fluctuating water temperatures and an inability to achieve constant water temperature; 2. Limited accuracy: Due to the influence of material and structural factors, the detected water temperature deviates significantly from the actual temperature, thus requiring improvement of existing temperature sensors. Utility Model Content

[0003] The purpose of this invention is to provide a dedicated temperature sensor for water temperature control systems, aiming to solve the above-mentioned problems and provide a dedicated temperature sensor for water temperature control systems that is both accurate and has a fast response.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a temperature sensor specifically designed for water temperature control systems, comprising...

[0005] The heat-conducting housing is made of a metal material with a high thermal conductivity. The heat-conducting housing has a connecting part on the outside and a receiving cavity with one end open.

[0006] A temperature sensing module, comprising a printed circuit board housed within a cavity and a temperature resistor integrated on the printed circuit board, wherein the wires of the printed circuit board extend toward the opening side and protrude from the heat-conducting housing.

[0007] The filling module includes a filling material that fills the accommodating cavity on the other side of the opening. The printed circuit board and the temperature resistor are encased in the filling material. The filling material is a curable material with high thermal conductivity and is an insulating material.

[0008] The encapsulation module can be solidified and filled into the accommodating cavity to encapsulate the temperature sensing module and the filler module within the accommodating cavity.

[0009] Furthermore, the heat-conducting housing includes an outer peripheral wall and a sealing end formed at the end of the outer peripheral wall. A flange is provided on the other side of the outer peripheral wall relative to the sealing end. A connecting portion is provided on the outer peripheral wall, and the opening is provided on the other side relative to the sealing end.

[0010] Furthermore, the connecting part is a connecting thread provided on the outer peripheral wall near the flange side.

[0011] Furthermore, the filler is a highly fluid filler, so that the filler can cover the outer periphery of the printed circuit board and the temperature resistor and make full contact with the inner wall of the heat-conducting housing, so that the heat at the heat-conducting housing can be effectively conducted to the temperature sensing module.

[0012] Furthermore, the filler is thermally conductive silicone or silicone grease.

[0013] Furthermore, the encapsulation module is made of epoxy resin.

[0014] Furthermore, the heat-conducting shell is made of copper or stainless steel.

[0015] In summary, this utility model has the following beneficial effects:

[0016] The temperature sensor for water temperature control systems of this invention has a sensitivity that is more than 50% higher and an accuracy that is more than 0.3 degrees Celsius higher than existing temperature sensors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the heat-conducting shell of this utility model.

[0019] In the figure: 10, heat-conducting shell; 11, connecting part; 12, outer peripheral wall; 13, sealing end; 14, flange; 20, temperature sensing module; 21, printed circuit board; 22, temperature resistor; 23, wire; 30, filler module; 40, encapsulation module. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] like Figures 1-2 As shown, a temperature sensor for a water temperature control system includes a heat-conducting housing 10, a temperature sensing module 20, a filling module 30, and an encapsulation module 40, which constitute the basic structure of this utility model.

[0024] The heat-conducting housing 10 is made of a metal material with high thermal conductivity. The heat-conducting housing 10 has a connecting part 11 on the outside and an accommodating cavity with one open end. Specifically, an environmentally friendly metal material with good thermal conductivity and stable characteristics (e.g., corrosion resistance) is used as the housing of the entire sensor. The accommodating cavity is used to place the temperature sensing module 20, the filling module 30 and the encapsulation module 40. The connecting part 11 plays a role in assembly and fixation. That is to say, the temperature sensor is assembled to the required position through the connecting part 11. In addition, the entire heat-conducting housing 10 also plays a role in heat conduction.

[0025] The temperature sensing module 20 includes a printed circuit board 21 housed in a cavity and a temperature resistor 22 integrated on the printed circuit board 21. The wires 23 of the printed circuit board 21 extend toward the opening side and protrude from the heat-conducting housing 10. Specifically, the temperature resistor 22 is soldered onto the printed circuit board 21. The use of a high-precision temperature resistor 22 enables temperature acquisition and outputs temperature change information in real time through the wires 23.

[0026] The filling module 30 includes a filling material that fills the accommodating cavity on the other side of the opening. The printed circuit board 21 and the temperature resistor 22 are enclosed in the filling material. That is, the filling material is used to enclose the printed circuit board 21 and the temperature resistor 22 inside, and the filling material is in full contact with the inner wall of the heat-conducting housing 10. The filling material is a curable material with high thermal conductivity and is an insulating material.

[0027] The encapsulation module 40 is solidified and filled into the accommodating cavity to encapsulate the temperature sensing module 20 and the filler module 30 within the cavity. The encapsulation module 40 uses a curable material to seal the temperature sensing module 20 and the high thermal conductivity filler module 30 within the thermally conductive housing 10, while simultaneously solidifying the wire 23 and the thermally conductive housing 10 into a single unit. This prevents material detachment and increases the overall stability of the sensor.

[0028] In some embodiments, the heat-conducting housing 10 includes an outer peripheral wall 12 and a sealing end 13 formed at the end of the outer peripheral wall 12. A flange 14 is provided on the other side of the outer peripheral wall 12 opposite to the sealing end 13. A connecting portion 11 is provided on the outer peripheral wall 12. The opening is located on the other side opposite to the sealing end 13, meaning that the heat-conducting housing 10 only communicates with the outside on the open side, while the remaining area is sealed. The end face of the flange 14 is used for positioning the temperature sensor. Specifically, the outer diameter of the flange 14 is larger than the outer diameter of the connecting portion 11, and the outer diameter of the connecting portion 11 is larger than the outer diameter of the outer peripheral wall 12. Further, the connecting portion 11 is a connecting thread provided on the outer peripheral wall 12 near the flange 14.

[0029] In some embodiments, the filler is a highly fluid filler, so that the filler can cover the outer periphery of the printed circuit board 21 and the temperature resistor 22 and make full contact with the inner wall of the heat-conducting housing 10, so that the heat at the heat-conducting housing 10 can be effectively conducted to the temperature sensing module 20. Specifically, the filler can make full contact with the heat-conducting housing 10, reduce the thermal inertia between the heat-conducting housing 10 and the temperature resistor 22, and improve the response speed.

[0030] In some embodiments, the filler has good filling properties, and its material includes, but is not limited to, thermally conductive silicone or silicone grease.

[0031] In some embodiments, the encapsulation module 40 is made of environmentally friendly materials, which have high adhesion, stable properties, good firmness, and strong sealing. The materials can be epoxy resin or similar materials.

[0032] In some embodiments, the heat-conducting housing 10 is made of copper or stainless steel.

[0033] In summary, this utility model has the following beneficial effects:

[0034] The temperature sensor for water temperature control systems of this invention has a sensitivity that is more than 50% higher and an accuracy that is more than 0.3 degrees Celsius higher than existing temperature sensors.

[0035] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A temperature sensor specifically designed for water temperature control systems, characterized in that: include The heat-conducting housing (10) is made of a metal material with high thermal conductivity. The heat-conducting housing (10) has a connecting part (11) on the outside and a receiving cavity with one end open. Temperature sensing module (20) includes a printed circuit board (21) housed in a cavity and a temperature resistor (22) integrated on the printed circuit board (21). The wires (23) of the printed circuit board (21) extend toward the opening side and protrude from the heat-conducting housing (10). The filling module (30) includes a filling material that fills the cavity into the other side of the opening. The printed circuit board (21) and the temperature resistor (22) are encased in the filling material. The filling material is a curable material with high thermal conductivity and is an insulating material. The encapsulation module (40) is solidly filled into the accommodating cavity for encapsulating the temperature sensing module (20) and the filler module (30) within the accommodating cavity.

2. The temperature sensor for a water temperature control system according to claim 1, characterized in that: The heat-conducting housing (10) includes an outer peripheral wall (12) and a sealing end (13) formed at the end of the outer peripheral wall (12). A flange (14) is provided on the other side of the outer peripheral wall (12) relative to the sealing end (13). A connecting part (11) is provided on the outer peripheral wall (12), and an opening is provided on the other side relative to the sealing end (13).

3. The temperature sensor for a water temperature control system according to claim 2, characterized in that: The connecting part (11) is a connecting thread provided on the outer peripheral wall (12) near the flange (14).

4. The temperature sensor for a water temperature control system according to claim 1, characterized in that: The filler is a highly fluid filler, so that the filler can cover the outer periphery of the printed circuit board (21) and the temperature resistor (22) and make full contact with the inner wall of the heat-conducting housing (10), so that the heat at the heat-conducting housing (10) can be effectively conducted to the temperature sensing module (20).

5. A temperature sensor for a water temperature control system according to claim 4, characterized in that: The filler is thermally conductive silicone or silicone grease.

6. The temperature sensor for a water temperature control system according to claim 1, characterized in that: The encapsulation module (40) is made of epoxy resin.

7. The temperature sensor for a water temperature control system according to claim 1, characterized in that: The heat-conducting shell (10) is made of copper or stainless steel.

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