Rapidly assembled and disassembled wireless temperature monitoring patch

Abstract

The utility model discloses a quick disassembly and assembly type wireless temperature monitoring patch, which belongs to the technical field of intelligent monitoring of power equipment and sequentially comprises a protective layer, a temperature measurement color changing layer, a shielding layer, a base material insulating layer and a magnetic attraction layer from top to bottom, an RFID (radio frequency identification) passive temperature sensor is embedded in the temperature measurement color changing layer, and the shielding layer is embedded in the magnetic attraction layer. The RFID passive temperature sensor is used for supplying power through electromagnetic wave energy emitted by the reader-writer and carrying out real-time data interaction with the reader-writer. According to the invention, through a dual verification system of local visualization and remote digitization, the reliability of temperature monitoring is significantly improved. The local visualization adopts a reversible color change and irreversible locking cooperation mechanism; a magnetic type design is adopted, and a high-temperature-resistant magnetic pad supports rapid mounting / dismounting and adapts to multi-point polling detection; the device has the characteristics of no need of battery energy supply, high electromagnetic compatibility, dual verification, low cost and quick disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to the field of intelligent monitoring technology for power equipment, specifically to a wireless temperature monitoring patch. Background Technology

[0002] With the continuous development of data centers, the safe and stable operation of their internal power equipment is crucial. However, low-voltage (380V) circuit breakers in data centers are prone to localized overheating due to poor contact, overload, and other reasons, posing significant safety risks. Currently, the main detection method is to use traditional thermal imaging equipment for periodic maintenance inspections, but this method has many shortcomings:

[0003] 1. The inability to achieve continuous monitoring makes it easy to miss temperature rises in hidden areas, resulting in some potential overheating problems not being detected in time.

[0004] 2. It is impossible to monitor hidden parts such as circuit breaker terminals in real time, making it difficult to detect overheating in the early stages and missing the best time to deal with it.

[0005] 3. Traditional sensors require wiring for installation, making it difficult to cover concealed areas. Wiring is also costly and complex to maintain. Battery-powered wireless sensors have short lifespans, and batteries are prone to failure in high-temperature environments.

[0006] 4. Existing temperature patches lack electromagnetic shielding and data traceability functions, and adhesive patches cannot adapt to temporary testing or multi-point inspection needs, making it difficult to meet the needs of data center use.

[0007] 5. Thermal imagers are expensive and difficult to deploy on a large scale, which limits their widespread application in data centers. Furthermore, during detection, they are easily affected by the refraction of light from the smooth surface of metal, leading to loss of temperature detection accuracy. Utility Model Content

[0008] The purpose of this invention is to provide a fast-installation and disassembly wireless temperature monitoring patch that requires no battery power, has strong electromagnetic compatibility, dual verification, and low cost.

[0009] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0010] A quick-release wireless temperature monitoring patch comprises, from top to bottom, a protective layer, a thermochromic layer, a shielding layer, a substrate insulation layer, and a magnetic layer. An RFID passive temperature sensor is embedded in the thermochromic layer. The RFID passive temperature sensor is powered by electromagnetic wave energy emitted by a reader and interacts with the reader in real time.

[0011] Furthermore, the protective layer is a transparent fluorinated film, which is wear-resistant and anti-fouling.

[0012] Furthermore, the surface of the thermochromic layer includes a reversible thermochromic region and an irreversible thermochromic locking region.

[0013] Furthermore, the material used in the reversible thermochromic region is a WO3 composite dye. The response temperature range is 40~60℃.

[0014] Furthermore, the material used in the irreversible thermochromic locking zone is a melt indicator. The critical temperature of the melt indicator is 70°C. When the temperature reaches above 70°C, it will permanently turn red. Even if the temperature drops, it will still turn red to record the temperature that has been reached above 70°C for accident tracing.

[0015] Furthermore, the shielding layer is a copper foil layer electroplated on the upper surface of the substrate insulating layer. The shielding layer is used to suppress corona discharge interference and improve electromagnetic compatibility.

[0016] Furthermore, the magnetic layer includes a magnetic sheet array and thermally conductive silicone grease. The magnetic sheet array is distributed on the lower surface of the substrate insulating layer, and the thermally conductive silicone grease fills the gaps between the magnetic sheets in the magnetic sheet array. The magnetic sheet array is used to magnetically attach to the surface of the test piece to achieve rapid installation and removal, while the thermally conductive silicone grease ensures efficient heat transfer.

[0017] Furthermore, the magnetic sheets in the magnetic sheet array are samarium cobalt magnetic sheets.

[0018] Furthermore, the substrate insulation layer is made of polyimide. The substrate insulation layer provides structural support and electrical insulation properties.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. Dual Verification: The reliability of temperature monitoring is significantly improved through a dual verification system of local visualization and remote digitization. Local visualization adopts a collaborative mechanism of reversible color change (40-60℃ gradient) and irreversible locking (permanent marking at ≥70℃).

[0021] 2. Wireless and passive integration: The sensor is powered by an electromagnetic field, eliminating the need for batteries, further extending its lifespan and reducing costs.

[0022] 3. Magnetic design: The high-temperature resistant magnetic pad supports quick installation / removal and is suitable for multi-point inspection.

[0023] 4. Thermal-electric synergistic optimization: Copper foil shielding layer reduces electromagnetic interference, and thermal grease reduces thermal resistance.

[0024] 5. Electromagnetic compatibility: The shielding layer suppresses corona discharge interference at the contact points, ensuring reliable installation. Attached Figure Description

[0025] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort:

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 for Figure 1 The exploded view shown;

[0028] Figure 3 for Figure 2 The diagram shows the structure of the magnetic absorbing layer.

[0029] In the diagram: 1. Protective layer; 2. Thermochromic layer; 3. Shielding layer; 4. Substrate insulation layer; 5. Magnetic layer; 6. RFID passive temperature sensor; 7. Reversible thermochromic zone; 8. Irreversible thermochromic locking zone; 9. Magnetic array; 10. Thermal grease. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] like Figure 1 , 2 As shown, a quick-release wireless temperature monitoring patch includes, from top to bottom, a protective layer 1, a thermochromic layer 2, a shielding layer 3, a substrate insulation layer 4, and a magnetic layer 5. An RFID passive temperature sensor 6 is embedded in the thermochromic layer 2. The RFID passive temperature sensor 6 is powered by the electromagnetic wave energy emitted by the reader and interacts with the reader in real time.

[0033] In this embodiment, the protective layer 1 is a transparent fluorinated film, which has the characteristics of wear resistance and anti-fouling.

[0034] The surface of the thermochromic layer 2 includes a reversible thermochromic region 7 and an irreversible thermochromic locking region 8.

[0035] The material used in the reversible thermochromic zone 7 is a WO3 composite dye. The response temperature range is 40~60℃.

[0036] The material of the irreversible thermochromic locking zone 8 is a melting indicator. The critical temperature of the melting indicator is 70°C. When the temperature reaches above 70°C, it will turn red permanently. Even if the temperature drops, it will still turn red to record the temperature that has been reached above 70°C for accident tracing.

[0037] The shielding layer 3 is a copper foil layer electroplated on the upper surface of the substrate insulating layer 4. The shielding layer is used to suppress corona discharge interference and improve electromagnetic compatibility.

[0038] like Figure 3 As shown, the magnetic layer 5 includes a magnetic sheet array 9 and thermally conductive silicone grease 10. The magnetic sheet array 9 is distributed on the lower surface of the substrate insulating layer 4, and the thermally conductive silicone grease 10 fills the gaps between the magnetic sheets in the magnetic sheet array 9. The magnetic sheet array 9 is used to magnetically attach to the surface of the test piece to achieve rapid installation and removal, and the thermally conductive silicone grease 10 ensures efficient heat transfer. In this embodiment, the magnetic sheets in the magnetic sheet array 9 are samarium cobalt magnetic sheets.

[0039] The substrate insulation layer 4 is made of polyimide. The substrate insulation layer 4 is used to provide structural support and electrical insulation properties.

[0040] Working principle: This application is mainly used for data center circuit breakers. This application realizes real-time monitoring of the circuit breaker contacts in data centers through a collaborative mechanism of magnetic installation → temperature sensing → dual early warning → wireless transmission.

[0041] This utility model has the following features:

[0042] (1) Temperature sensing and visual early warning

[0043] Heat conduction path: contact heating → magnetic thermal grease layer → substrate layer → thermochromic color-changing layer (WO3 dye + melt indicator).

[0044] Reversible color change temperature: 40~60℃: WO3 dye changes its crystal structure with temperature. Within the range of 40~60℃, the color change process from low temperature to high temperature is blue→yellow→orange.

[0045] Irreversible locking (≥70℃): The melting indicator undergoes an irreversible chemical reaction, permanently turning red.

[0046] (2) Wireless passive temperature measurement

[0047] Energy acquisition: The reader transmits a signal → the antenna of the RFID passive temperature sensor couples energy → the chip is activated and the temperature is measured.

[0048] Data transmission: After the RFID passive temperature sensor encodes the temperature value, it reflects the signal to the reader through load modulation technology, with a transmission distance of ≥5m.

[0049] (3) Magnetic quick assembly and disassembly

[0050] Magnetic adsorption: The magnetic adsorption force of the magnetic sheet ensures that the patch will not fall off in a vibrating environment.

[0051] Quick installation and removal: Maintenance personnel can directly attach the patch to the test point, leaving no residue when removing it, and supporting the reuse of a single patch.

[0052] (4) Thermal-electric synergistic optimization

[0053] Electromagnetic shielding: The copper foil layer suppresses corona discharge and radio frequency interference, ensuring that the RFID signal-to-noise ratio meets the requirements.

[0054] Thermal design: The gaps between the magnetic pads are filled with thermally conductive silicone grease to ensure that the overall thermal resistance of the patch is less than the specified value, thus avoiding temperature measurement delay.

[0055] Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A quick detachable wireless temperature monitoring patch, characterized in that: From top to bottom, it includes a protective layer, a thermochromic layer, a shielding layer, a substrate insulation layer, and a magnetic layer. An RFID passive temperature sensor is embedded in the thermochromic layer. The RFID passive temperature sensor is powered by the electromagnetic wave energy emitted by the reader and interacts with the reader in real time.

2. The quick-release wireless temperature monitoring patch of claim 1, wherein: The protective layer is a transparent fluorinated film.

3. The quick-release wireless temperature monitoring patch of claim 1, wherein: The surface of the thermochromic layer includes a reversible thermochromic region and an irreversible thermochromic locking region.

4. The quick-release wireless temperature monitoring patch of claim 3, wherein: The material used in the reversible thermochromic zone is WO3 composite dye.

5. The quick-release wireless temperature monitoring patch of claim 3, wherein: The material used in the irreversible thermochromic locking zone is a melt indicator.

6. The quick-release wireless temperature monitoring patch of claim 1, wherein: The shielding layer is a copper foil layer electroplated on the upper surface of the substrate insulating layer.

7. The quick-release wireless temperature monitoring patch of claim 1, wherein: The magnetic layer includes a magnetic sheet array and thermal grease. The magnetic sheet array is distributed on the lower surface of the substrate insulating layer, and the thermal grease fills the gaps between the magnetic sheets in the magnetic sheet array.

8. The quick-release wireless temperature monitoring patch of claim 7, wherein: The magnetic sheets in the magnetic sheet array are samarium cobalt magnetic sheets.

9. The quick-release wireless temperature monitoring patch of claim 1, wherein: The insulating layer of the substrate is made of polyimide.

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