Temperature sensor capable of being used in microwave field environment
By using metal K-couple wire elements, shielded aluminum foil sleeves, and sealing rings in the temperature sensor, the problem of inaccurate temperature monitoring in microwave fields is solved, achieving stable and accurate temperature measurement in microwave field environments, making it suitable for temperature monitoring of microwave equipment.
Patent Information
- Application Number
- CN202520046283.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Traditional thermocouple temperature sensors cannot obtain stable data in microwave fields and cannot withstand large microwave frequency fluctuations, resulting in inaccurate temperature monitoring and unreliable output data stability.
It adopts metal K-coupled wire elements, with K-type coupler wires inside, and shielding aluminum foil sleeves and shielding aluminum foil sheets distributed inside the aluminum alloy protective tube. They are connected by welding, combined with threaded locking sleeves and sealing rings to ensure structural robustness and sealing, and reduce the impact of microwave interference and contaminants.
It improves the measurement accuracy and reliability of temperature sensors in microwave field environments, ensures the continuity and stability of signal transmission, and is suitable for microwave heating equipment, microwave drying equipment, microwave chemical reactors, and other applications.
Smart Images
Figure CN223841320U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature sensor technology, and in particular to a temperature sensor that can be used in a microwave field environment. Background Technology
[0002] A temperature transducer is a sensor that converts temperature variables into a standardized, transmittable output signal. Temperature sensors can be broadly classified into contact and non-contact types based on their measurement method, and into resistance temperature detectors (RTDs) and thermocouples based on their sensor materials and electronic component characteristics. They are widely used in temperature detection, monitoring, display, temperature control, and overheat protection. Microwaves refer to electromagnetic waves with frequencies between 300MHz and 300GHz. They are a finite frequency band within radio waves, specifically electromagnetic waves with wavelengths between 1 meter (excluding 1 meter) and 1 millimeter. They are a collective term for decimeter waves, centimeter waves, and millimeter waves. Microwave frequencies are higher than those of ordinary radio waves and are often referred to as ultra-high frequency (UHF) electromagnetic waves.
[0003] Traditional thermocouple temperature sensors cannot obtain stable data in microwave fields and cannot withstand large microwave frequency fluctuations, resulting in inaccurate temperature monitoring. In particular, when working in microwave fields for a long time, the stability of the output data cannot be guaranteed, thus making it impossible for the temperature sensor to accurately monitor the real-time temperature in the microwave field environment.
[0004] Therefore, we propose a temperature sensor that can be used in microwave field environments. Utility Model Content
[0005] The present invention aims to solve the technical problems existing in the prior art and provide a temperature sensor that can be used in microwave field environments.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a temperature sensor that can be used in a microwave field environment, comprising a metal K-coupled wire element, wherein a K-type coupled wire is provided inside, an aluminum alloy protective tube is provided at one end of the metal K-coupled wire element, a heat shrinkable sleeve is fixedly sleeved at the outer edge of the metal K-coupled wire element, the heat shrinkable sleeve covers the metal K-coupled wire element and the aluminum alloy protective tube inside, a shielding aluminum foil sleeve is provided on the K-type coupled wire distributed inside the aluminum alloy protective tube, the shielding aluminum foil sleeve is sleeved on the K-type coupled wire by welding, and the connection between the K-type coupled wire and the shielding aluminum foil sleeve forms a coupled wire welding point.
[0007] Preferably, the end of the heat shrink tubing away from the aluminum alloy protective tube is provided with a connecting seat, and a shielding aluminum foil is provided on the metal K-couple wire element distributed in the connecting seat.
[0008] Preferably, a threaded locking sleeve is movably installed on the left side of the outer wall of the connector. The connector is threadedly connected to the connector through the threaded locking sleeve. The internal thread of the threaded locking sleeve matches the external thread of the connector. By rotating the threaded locking sleeve, the connector and the connector are tightly connected, ensuring the robustness and sealing of the entire sensor structure.
[0009] Preferably, a wire hole is provided at the center of the connector. The wire hole is used to pass through the signal wire of the temperature sensor to ensure a stable and reliable connection between the signal wire and the connector. After the signal wire passes through the wire hole, it is tightly connected to the inner wall of the connector by welding or other fixing methods to form a stable electrical connection, thereby ensuring the continuity and stability of signal transmission.
[0010] Preferably, a sealing ring is provided on the outer end face of the connector. The sealing ring fits tightly with the outer edge of the connector to form a sealing structure, which effectively prevents pollutants in the external environment from entering the connector and affecting the normal operation of the sensor and the signal transmission quality.
[0011] Preferably, a positioning contact is provided on one side of the connector.
[0012] Preferably, a positioning groove is provided on the left side of the inner wall of the connector. The positioning groove cooperates with the positioning antenna on the connector. Through the interaction between the positioning groove and the positioning antenna, the connector and the connector are accurately positioned, ensuring the accuracy of the connection and the overall stability of the sensor.
[0013] This invention provides a temperature sensor that can be used in microwave field environments. It has the following advantages:
[0014] 1. This temperature sensor, which can be used in microwave field environments, uses a shielding aluminum foil sleeve and a shielding aluminum foil sheet to shield and protect the signal interface, effectively shielding the microwave signal and preventing interference and noise from affecting the temperature signal, thereby improving the measurement accuracy and reliability of the temperature sensor.
[0015] 2. This temperature sensor, which can be used in microwave field environments, features a sealing ring that fits tightly against the outer edge of the connector to form a sealed structure. This effectively prevents contaminants from the external environment from entering the connector and affecting the normal operation of the sensor and the quality of signal transmission.
[0016] 3. This temperature sensor, which can be used in microwave field environments, features a threaded locking sleeve. By rotating the threaded locking sleeve, a tight connection is achieved between the connector and the mounting base, ensuring the robustness and sealing of the entire sensor structure. Attached Figure Description
[0017] Figure 1This is a perspective view of the overall internal structure of this utility model.
[0018] Legend: 10. Metal K-coupled wire element; 11. Connector; 12. Connector; 13. Aluminum alloy protective tube; 14. Heat shrink tubing; 15. Shielding aluminum foil sleeve; 16. Coupled wire welding point; 17. Positioning antenna; 18. Shielding aluminum foil sheet; 19. Sealing ring; 20. Positioning groove. Detailed Implementation
[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 the embodiments of this utility model based on the specific circumstances.
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1: A temperature sensor that can be used in a microwave field environment, such as... Figure 1 As shown, the device includes a metal K-coupled wire element 10, with K-type coupled wires inside. One end of the metal K-coupled wire element 10 is fitted with an aluminum alloy protective tube 13. A heat-shrinkable sleeve 14 is fixedly sleeved on the outer circumference of the metal K-coupled wire element 10, covering both the metal K-coupled wire element 10 and the aluminum alloy protective tube 13. Shielding aluminum foil sleeves 15 are provided on the K-type coupled wires distributed within the aluminum alloy protective tube 13. The shielding aluminum foil sleeves 15 are welded onto the K-type coupled wires, forming a coupled wire welding point 16 at the connection between the K-type coupled wires and the shielding aluminum foil sleeves 15. A connecting seat 11 is provided at the end of the heat-shrinkable sleeve 14 away from the aluminum alloy protective tube 13, and shielding aluminum foil sheets 18 are provided on the metal K-coupled wire elements 10 distributed within the connecting seat 11. By setting up a shielding aluminum foil sleeve 15 and a shielding aluminum foil sheet 18, the signal interface is shielded and protected, effectively shielding the microwave signal and preventing interference and noise from affecting the temperature signal, thereby improving the accuracy and reliability of the temperature sensor measurement.
[0026] Example 2: Based on Example 1, as follows Figure 1As shown, a threaded locking sleeve is movably installed on the left side of the outer wall of the connector 11. The connector 11 is threadedly connected to the connector 12 via the threaded locking sleeve. The internal thread of the threaded locking sleeve matches the external thread of the connector 12. By rotating the threaded locking sleeve, a tight connection is achieved between the connector 11 and the connector 12, ensuring the robustness and sealing of the entire sensor structure. A wire hole is provided through the center of the connector 12. The wire hole is used for the signal wire of the temperature sensor to pass through, ensuring a stable and reliable connection between the signal wire and the connector 12. After the signal wire passes through the wire hole, it is tightly connected to the inner wall of the connector 12 by welding or other fixing methods, forming a stable electrical connection, thereby ensuring the continuity and stability of signal transmission. By setting the threaded locking sleeve, the tight connection between the connector 11 and the connector 12 is achieved by rotating the threaded locking sleeve, ensuring the robustness and sealing of the entire sensor structure. By setting the sealing ring 19, the sealing ring 19 can fit tightly against the outer edge of the connector 12 to form a sealing structure, effectively preventing contaminants in the external environment from entering the interior of the connector 12 and affecting the normal operation of the sensor and the signal transmission quality.
[0027] Example 3: Based on Examples 1 and 2, as follows... Figure 1 As shown, a sealing ring 19 is provided on the outer end face of connector 12. The sealing ring 19 fits tightly with the outer circle of connector 12 to form a sealing structure, effectively preventing contaminants from the external environment from entering the interior of connector 12 and affecting the normal operation of the sensor and the signal transmission quality. A positioning contact 17 is provided on one side of connector 12. A positioning groove 20 is provided on the left side of the inner wall of connector 11. The positioning groove 20 cooperates with the positioning contact 17 on connector 12. Through the interaction of positioning groove 20 and positioning contact 17, the precise positioning of connector 11 and connector 12 is achieved, ensuring the accuracy of the connection and the overall stability of the sensor. By providing a threaded locking sleeve, rotating the threaded locking sleeve achieves a tight connection between connector 11 and connector 12, ensuring the robustness and sealing of the entire sensor structure.
[0028] The working principle of this utility model is as follows: When the temperature sensor of this utility model is working, the K-type thermocouple wire acts as the temperature sensing element. When the temperatures at its two ends are different, a thermoelectric electromotive force is generated at both ends of the thermocouple wire. This electromotive force, through the shielding effect of the shielding aluminum foil sleeve and shielding aluminum foil sheet, effectively reduces the interference of the microwave field on the signal, ensuring accurate measurement of the temperature signal. The signal line transmits the temperature signal to the connector, and the stable electrical connection between the connector's wire hole and the inner wall of the connector ensures the continuity and stability of the signal. The sealing ring further ensures the cleanliness of the connector's interior, preventing contaminants from affecting signal transmission. The coordinated use of the positioning antenna and positioning groove ensures the precise positioning of the connector base and the connector, thereby ensuring the stability and reliability of the entire sensor. In a microwave field environment, the temperature... The stability and accuracy of temperature sensors are crucial. This invention, through the aforementioned structural design, not only improves the adaptability of the temperature sensor in microwave environments but also enhances its long-term stability and reliability. Therefore, this temperature sensor is particularly suitable for applications requiring precise temperature measurement in microwave environments, such as microwave heating equipment, microwave drying equipment, and microwave chemical reactors. By incorporating a shielding aluminum foil sleeve 15, a shielding aluminum foil sheet 18, and a sealing ring 19, it effectively shields against microwave interference, ensuring the accuracy of temperature measurement. Furthermore, it provides excellent sealing performance, guaranteeing long-term stable operation of the sensor in harsh environments. This significantly improves the accuracy and reliability of temperature monitoring in microwave environments, providing strong support for technological advancements and application expansion in related fields.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A temperature sensor applicable in a microwave field environment, comprising a metal K-coupled wire element (10), characterized in that: The metal K-coupled wire element (10) has K-type coupled wires inside. One end of the metal K-coupled wire element (10) is fitted with an aluminum alloy protective tube (13). A heat-shrinkable sleeve (14) is fixedly sleeved around the outer edge of the metal K-coupled wire element (10). The heat-shrinkable sleeve (14) covers the metal K-coupled wire element (10) and the aluminum alloy protective tube (13). A shielding aluminum foil sleeve (15) is provided on the K-type coupled wires distributed inside the aluminum alloy protective tube (13). The shielding aluminum foil sleeve (15) is sleeved on the K-type coupled wires by welding. The connection between the coupling wire and the shielding aluminum foil sleeve (15) forms a coupling wire welding point (16). A sealing ring (19) is provided on the outer end face of the connector (12). The sealing ring (19) fits tightly with the outer circle of the connector (12) to form a sealing structure. A positioning groove (20) is provided on the left side of the inner wall of the connector (11). The positioning groove (20) cooperates with the positioning antenna (17) on the connector (12). Through the interaction of the positioning groove (20) and the positioning antenna (17), the precise positioning of the connector (11) and the connector (12) is achieved.
2. A temperature sensor applicable to microwave field environments according to claim 1, characterized in that: The heat shrink tubing (14) is provided with a connector (11) at the end away from the aluminum alloy protective tube (13), and a shielding aluminum foil (18) is provided on the metal K-couple wire element (10) distributed in the connector (11).
3. A temperature sensor applicable to microwave field environments according to claim 1, characterized in that: A threaded locking sleeve is movably installed on the left side of the outer wall of the connecting seat (11). The connecting seat (11) is threadedly connected to the connector (12) through the threaded locking sleeve. The internal thread of the threaded locking sleeve matches the external thread of the connector (12).
4. A temperature sensor applicable to microwave field environments according to claim 1, characterized in that: The connector (12) has a through hole at its center. After the signal line passes through the hole, it is tightly connected to the inner wall of the connector (12) by welding to form a stable electrical connection.
5. A temperature sensor applicable in a microwave field environment according to claim 1, characterized in that: The connector (12) is provided with a positioning antenna (17) on one side.