Structure for improving temperature conduction of temperature sensor
By using an array of corrugated hoses and a thermal grease structure, the problem of insufficient contact area of traditional temperature sensors on uneven or curved surfaces is solved, achieving more efficient temperature conduction and accurate temperature detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG NABO PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-21
AI Technical Summary
When traditional temperature sensors are applied to surfaces with unevenness or curvature, the effective contact area is significantly reduced, leading to decreased temperature conduction efficiency and increased measurement error.
It employs an array of corrugated hoses and thermal grease structures. Through the elastic deformation of the corrugated hoses and the fluidity of the thermal grease, it actively adapts to the unevenness of the surface of the object being tested, increasing the effective contact area. Through the combination of thermally conductive metal sheets and sensing contacts, it achieves effective heat transfer and accurate temperature detection.
It increases the contact range with uneven and curved surfaces, enhances temperature transfer efficiency, reduces measurement errors, and improves the accuracy and response speed of temperature detection.
Smart Images
Figure CN224151842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature sensor technology, and in particular to a structure for improving the temperature conduction of a temperature sensor. Background Technology
[0002] A temperature sensor is a device that converts temperature changes into electrical signals and is widely used in industrial testing, environmental monitoring and other fields. Traditional temperature sensors usually have a sensing element that comes into direct contact with the object being measured, or through a simple structure. Their working principle is based on the thermal conduction effect: the sensing element absorbs heat from the object being measured through the contact surface, generating a temperature-related electrical signal change.
[0003] However, traditional sensors mostly have a planar or single-point contact surface. When the surface of the object being measured has unevenness or curvature, the effective contact area is greatly reduced, resulting in reduced temperature conduction efficiency and increased measurement error.
[0004] Therefore, to address the above problems, a structure for improving the temperature conduction of a temperature sensor is proposed. This structure uses an array of corrugated hoses wrapped with thermally conductive silicone grease. By utilizing the elastic deformation of the corrugated hoses and the fluidity of the silicone grease, the structure actively adapts to the unevenness of the surface of the object being measured, thereby improving the temperature conduction efficiency. Utility Model Content
[0005] In order to overcome the problem that traditional temperature sensors have mostly flat or single-point contact surfaces, the effective contact area is greatly reduced when the surface of the object being measured has unevenness or curvature, which leads to reduced temperature conduction efficiency and increased measurement error.
[0006] The technical solution of this utility model is as follows: a structure for improving the temperature conduction of a temperature sensor, comprising a sensor body, a conduction component, a fastening component, an adjustment component, and a mounting component. The conduction component is disposed above the sensor body, and multiple sets of conduction components are arranged in a rectangular array. The fastening component is disposed below the sensor body, and the adjustment component is disposed inside the fastening component. The mounting component is disposed below the fastening component. The conduction component includes a sensing contact, thermal grease, a thermally conductive metal sheet, a corrugated hose, and a return spring. The sensing contact is disposed above the sensor body, and thermal grease is disposed above the sensing contact. A thermally conductive metal sheet is provided at the upper end of the thermally conductive grease, and a corrugated hose is provided on the outer side of the thermally conductive grease. A return spring is provided on the outer side of the corrugated hose. The two ends of the return spring are connected to the thermally conductive metal sheet and the sensor body, respectively. The fastening assembly includes a base plate, a fixing block, a first connecting rod, and a moving block. A base plate is provided below the sensor body, and a moving block is provided on the inner side of the base plate. There are two sets of moving blocks, and the two sets of moving blocks are slidably connected to the base plate. A fixing block is provided below the sensor body, and there are two sets of fixing blocks. A first connecting rod is provided on the inner side of the fixing block. The first connecting rod is rotatably connected to the fixing block and the moving block.
[0007] Preferably, the corrugated hoses and thermal grease distributed in an array adapt to the unevenness of the object surface, increasing the effective contact area. Heat is transferred to the thermal grease via a thermally conductive metal sheet, and then to the sensing contacts for temperature sensing. The gap between the corrugated hoses and the thermal grease compensates for the deformation caused by the expansion and contraction of the thermal grease. A return spring resets the position of the thermally conductive metal sheet when the device is idle, thus restoring the expansion and contraction deformation of the thermal grease and the corrugated hoses. Two sets of moving blocks move linearly along the inner side of the base plate, driving the first connecting rod to rotate. The rotation of the first connecting rod compresses the corrugated hoses and thermally conductive metal sheet to fit tightly against the object, increasing the contact pressure. This improves the contact range and temperature transfer efficiency when detecting the temperature of uneven and curved objects using the corrugated hose structure and thermal grease material.
[0008] Preferably, the adjustment assembly includes a first threaded rod and a second connecting rod. The first threaded rod is provided on the inner side of the base plate. The first threaded rod has two opposite threads. The first threaded rod is threadedly connected to the moving block. The two sets of moving blocks are respectively located on the opposite threads at both ends of the first threaded rod. The second connecting rod is provided at one end of the first threaded rod.
[0009] Preferably, the adjustment assembly also includes a connecting block and a handle, with a connecting block provided at one end of the second connecting rod and a handle provided on one side of the connecting block.
[0010] Preferably, the mounting assembly includes a mounting bracket and connecting rings. The mounting bracket is located below the base plate, and the connecting rings are located on the outer side of the mounting bracket. There are three sets of connecting rings, and the connecting rings and the mounting bracket are rotatably connected.
[0011] Preferably, the mounting assembly also includes a connecting plate and a threaded tube, with the connecting plate provided on one side of the connecting ring and the threaded tube provided on the inner side of the connecting plate.
[0012] Preferably, the mounting assembly also includes a second threaded rod and a connecting wheel. The second threaded rod is provided on the inner side of the threaded tube, and the second threaded rod and the threaded tube are threadedly connected. A connecting wheel is provided at one end of the second threaded rod.
[0013] Preferably, the mounting assembly also includes a bearing and a suction cup, with a bearing provided at one end of the second threaded rod and a suction cup provided above the bearing.
[0014] The beneficial effects of this utility model are:
[0015] The corrugated hoses and thermal grease, arranged in an array, adapt to the unevenness of the object's surface, increasing the effective contact area. Heat is transferred to the thermal grease via a thermally conductive metal sheet, and then to the sensing contacts for temperature sensing. The gap between the corrugated hoses and thermal grease compensates for the deformation caused by the expansion and contraction of the thermal grease. A return spring resets the position of the thermally conductive metal sheet when the device is idle, thus restoring the expansion and contraction deformation of the thermal grease and corrugated hoses. Two sets of moving blocks move linearly along the inner side of the base plate, causing the first connecting rod to rotate. The rotation of the first connecting rod compresses the corrugated hoses and thermally conductive metal sheet to fit tightly against the object, increasing the contact pressure. This improves the contact range and temperature transfer efficiency when detecting the temperature of uneven and curved surfaces using the corrugated hose structure and thermal grease material. Attached Figure Description
[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the temperature sensor structure for improving temperature conduction according to this utility model.
[0017] Figure 2 The diagram shown is a second three-dimensional structural schematic of the temperature sensor structure for improving temperature conduction according to this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the structure of the temperature sensor that improves temperature conduction according to this utility model.
[0019] Figure 4 The diagram shown is a partial cross-sectional view of the structure of the temperature sensor that improves temperature conduction according to this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Sensor body; 101. Sensing contact; 102. Thermal grease; 103. Thermally conductive metal sheet; 104. Corrugated hose; 105. Return spring; 201. Base plate; 202. Fixing block; 203. First connecting rod; 204. Moving block; 301. First threaded rod; 302. Second connecting rod; 303. Connecting block; 304. Handle; 401. Fixing frame; 402. Connecting ring; 403. Connecting plate; 404. Threaded tube; 405. Second threaded rod; 406. Connecting wheel; 407. Bearing; 408. Suction cup. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0022] Please see Figure 1 and Figure 2 This utility model provides an embodiment: a structure for improving the temperature conduction of a temperature sensor, including a sensor body 1, a conduction component, a fastening component, an adjustment component, and a mounting component. A conduction component is disposed above the sensor body 1, and multiple sets of conduction components are arranged in a rectangular array. A fastening component is disposed below the sensor body 1, and an adjustment component is disposed inside the fastening component. A mounting component is disposed below the fastening component. The conduction component includes a sensing contact 101, thermal grease 102, a thermally conductive metal sheet 103, a corrugated hose 104, and a return spring 105. The sensing contact 101 is disposed above the sensor body 1, and thermal grease 102 is disposed above the sensing contact 101. A thermally conductive metal sheet 103 is disposed at the upper end of the thermal grease 102. A corrugated hose 104 is provided on the outer side of 102, and a return spring 105 is provided on the outer side of the corrugated hose 104. The two ends of the return spring 105 are connected to the heat-conducting metal sheet 103 and the sensor body 1, respectively. The fastening assembly includes a base plate 201, a fixing block 202, a first connecting rod 203 and a moving block 204. The base plate 201 is provided below the sensor body 1, and the moving block 204 is provided on the inner side of the base plate 201. There are two sets of moving blocks 204, and the two sets of moving blocks 204 are slidably connected to the base plate 201. The fixing block 202 is provided below the sensor body 1. There are two sets of fixing blocks 202, and the first connecting rod 203 is provided on the inner side of the fixing block 202. The first connecting rod 203 is rotatably connected to the fixing block 202 and the moving block 204.
[0023] Please see Figure 3 and Figure 4In this embodiment, the adjustment assembly includes a first threaded rod 301 and a second connecting rod 302. The first threaded rod 301 is provided on the inner side of the base plate 201. The first threaded rod 301 has two opposite threads. The first threaded rod 301 is threadedly connected to the moving block 204. The two sets of moving blocks 204 are respectively located on the opposite threads at both ends of the first threaded rod 301. The second connecting rod 302 is provided at one end of the first threaded rod 301. The adjustment assembly also includes a connecting block 303 and a handle 304. The connecting block 303 is provided at one end of the second connecting rod 302. The handle 304 is provided on one side of the connecting block 303. In use, rotating the handle 304 drives the connecting block 303 to rotate. The rotation of the connecting block 303 drives the first threaded rod 301 to rotate. The rotation of the first threaded rod 301 drives the two sets of moving blocks 204 to move relatively linearly along the inner side of the base plate 201.
[0024] The mounting assembly includes a fixing frame 401 and a connecting ring 402. The fixing frame 401 is located below the base plate 201, and the connecting ring 402 is located on the outer side of the fixing frame 401. Three sets of connecting rings 402 are provided. The connecting rings 402 and the fixing frame 401 are rotatably connected. The mounting assembly also includes a connecting plate 403 and a threaded tube 404. The connecting plate 403 is located on one side of the connecting ring 402, and the threaded tube 404 is located on the inner side of the connecting plate 403. The mounting assembly also includes a second threaded rod 405 and a connecting wheel 406. The second threaded rod 405 is located on the inner side of the threaded tube 404, and the second threaded rod 405 and the threaded tube 404 are threadedly connected. One end of the second threaded rod 405 is provided with... The mounting assembly includes a connecting wheel 406, a bearing 407, and a suction cup 408. One end of the second threaded rod 405 is fitted with the bearing 407, and the suction cup 408 is positioned above the bearing 407. In use, rotating the connecting ring 402 rotates the connecting plate 403, thereby adjusting the position of the three suction cups 408. Rotating the connecting wheel 406 rotates the second threaded rod 405, which linearly advances the suction cups 408 along the threaded tube 404. The suction cups 408 are used to adhere to the surface of the object being measured. The three suction cups 408 can be adjusted to different angles and positions to adapt to surfaces on different horizontal planes.
[0025] During operation, the operator first rotates the connecting ring 402 to rotate the connecting plate 403, so that the suction cup 408 is initially aligned with the surface of the object to be measured. Then, the connecting wheel 406 is rotated to drive the second threaded rod 405 to move axially along the threaded tube 404, pushing the suction cup 408 to tightly adhere to the surface of the object to be measured, ensuring the overall stability of the device. After adsorption is completed, the connecting block 303 is rotated by rotating the handle 304, which drives the first threaded rod 301 to rotate. Since the first threaded rod 301 has bidirectional opposite threads, the two sets of moving blocks 204 move relatively linearly along the inner side of the base plate 201, driving the first connecting rod 203 to rotate. The first connecting rod 203 presses the corrugated hose 104 and the heat-conducting metal sheet 103, so that they initially contact the surface of the object to be measured, forming a pre-tightening pressure. At this time, the heat-conducting silicone grease 102 undergoes slight deformation under the constraint of the corrugated hose 104.
[0026] When the surface of the object being tested has macroscopic irregularities or curvature changes, the corrugated hose 104 is axially compressed under the lateral pressure applied by the moving block 204; the spiral structure of the corrugated hose 104 allows it to expand radially, and in conjunction with the fluidity of the thermal grease 102, the thermally conductive metal sheet 103 dynamically fills the irregularities on the surface of the object being tested; the thermally conductive metal sheet 103 undergoes local elastic bending under the constraint of the corrugated hose 104, further increasing the effective contact area;
[0027] The heat of the object being measured is transferred to the thermal grease layer 102 through the thermally conductive metal sheet 103. The grease forms a continuous heat conduction path between the corrugated hose 104 and the sensing contact 101. The sensor body 1 collects temperature signals through the array of sensing contacts 101. The gap between the corrugated hose 104 and the thermal grease 102 compensates for the volume change caused by the deformation of the grease, maintaining a stable heat conduction efficiency.
[0028] After a single test is completed, rotating the handle 304 in the reverse direction causes the first threaded rod 301 to retract, moving the moving block 204 back, and releasing the pressure of the first connecting rod 203 on the corrugated hose 104. The elastic force of the return spring 105 pushes the heat-conducting metal plate 103 back to its original position, the corrugated hose 104 returns to its natural spiral shape, and the thermal grease 102 redistributes under the action of surface tension, preparing for the next test.
[0029] Through the above steps, the elasticity of the arrayed corrugated hoses 104 and thermal grease 102 is utilized to adapt to the unevenness of the object surface, increasing the effective contact area. Heat is transferred from the thermally conductive metal sheet 103 to the thermally conductive grease 102, and then from the thermally conductive grease 102 to the sensing contact 101 for temperature sensing. The gap between the corrugated hoses 104 and the thermally conductive grease 102 compensates for the deformation caused by the expansion and contraction of the thermally conductive grease 102. A return spring 105 is used to return the thermally conductive metal sheet 103 when the device is idle. The position is reset, restoring the thermal grease 102 and the corrugated hose 104 from their expansion and contraction deformations. Two sets of moving blocks 204 move linearly along the inner side of the base plate 201, driving the first connecting rod 203 to rotate. The rotation of the first connecting rod 203 compresses the corrugated hose 104 and the thermally conductive metal sheet 103 to fit tightly against the object, increasing the contact pressure. This improves the contact range of the surface of the concave and convex objects and the temperature transfer efficiency when detecting the temperature of concave and convex objects and curved surfaces through the corrugated structure and the grease material.
[0030] Example 1
[0031] Optionally, in aluminum alloy die casting production, the mold cavity surface has complex textures and heat dissipation grooves; traditional planar sensors can only contact the protruding parts, resulting in the temperature monitoring value being 15%-20% lower than the actual mold cavity temperature, affecting the control of the casting solidification process; the structure of this utility model that improves the temperature conduction of the temperature sensor is used for monitoring the surface temperature of high-temperature metal casting molds; the specific steps include:
[0032] Step 1: Adsorb the three sets of suction cups 408 onto the non-working area of the outer wall of the mold. Rotate the connecting ring 402 to make the suction cups 408 distributed at 120°. Rotate the connecting wheel 406 to push the second threaded rod 405 forward. The suction cups 408 adhere tightly to the curved surface of the mold through vacuum adsorption.
[0033] Step 2: The operator rotates handle 304 clockwise to 270°, causing the first threaded rod 301 to drive the two sets of moving blocks 204 to move 12mm towards each other; the first connecting rod 203 pushes the heat-conducting metal plate 103 to generate 0.8 N / cm. 2 Contact pressure;
[0034] Step 3: When the mold is heated to 400℃, the array of corrugated hoses 104 undergo axial compression deformation under pressure. The compression rate of the central corrugated hose reaches 35%, while the compression rate of the edge part remains at 15%, adapting to the 0.5-2mm uneven texture on the mold cavity surface.
[0035] Step 4: Thermal grease 102 forms a continuous thermally conductive layer with a thickness of 0.2mm in the corrugated pipe deformation gap. The measured thermal resistance is reduced by 42% compared with the traditional structure, and the sensor response time is shortened from 8.5 seconds to 4.2 seconds.
[0036] Specific test data show that the measurement error of the mold temperature field after the improvement was reduced from ±12℃ to ±3℃, and the porosity defect rate of the casting decreased by 18%.
[0037] Example 2
[0038] Optionally, in the treatment of third-degree burns, the wound surface presents as an irregular crater-like depression. Traditional sensors suffer from poor contact, leading to a temperature detection deviation of 2-3℃, which affects the determination of necrotic tissue. This invention utilizes a structure that improves the temperature conduction of the temperature sensor to detect the temperature distribution of human burn wounds. Specific steps include:
[0039] Step 1: Adjust the suction cup 408 to a triangular layout by rotating the connecting ring 402 to fit the curved surface of the human joint;
[0040] Step 2: Gently rotate handle 304 to 90°, causing moving block 204 to move 3mm, generating 0.15N / cm. 2 Flexible pressure;
[0041] Step 3: When testing a wound with a depth of 2mm, the central corrugated tube 104 is fully compressed to fit the bottom of the depression, while the surrounding corrugated tubes maintain a 50% compression rate to adapt to the raised wound edge.
[0042] Step 4: A biocompatible thermal channel is formed using thermally conductive silicone grease 102, increasing the thermal conductivity to 8.5 W / (m·K), with a linearity error of less than 0.1℃ in the 37-42℃ range;
[0043] Specific test results are as follows: the improved structure increased the integrity of wound temperature distribution detection from 67% to 92%, and the sensitivity of deep tissue and epidermal temperature difference detection increased by 3 times, accurately identifying 0.5mm... 2 Survival tissue areas.
[0044] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A structure for improving temperature conduction of a temperature sensor, comprising a sensor main body (1), characterized in that: a heat conductive member (2) is provided on the sensor main body (1); and a heat conductive member (3) is provided on the heat conductive member (2). It also includes a conductive component, a fastening component, an adjusting component, and a mounting component. A conductive component is provided on the top of the sensor body (1), and multiple sets of conductive components are arranged in a rectangular array. A fastening component is provided on the bottom of the sensor body (1), and an adjusting component is provided inside the fastening component. A mounting component is provided below the fastening component. The conductive component includes a sensing contact (101), thermal grease (102), a thermally conductive metal sheet (103), a corrugated hose (104), and a return spring (105). A sensing contact (101) is provided on the top of the sensor body (1), and thermal grease (102) is provided on the top of the sensing contact (101). A thermally conductive metal sheet (103) is provided on the upper end of the thermal grease (102), and a corrugated hose (104) is provided on the outer side of the thermal grease (102). A return spring (105) is provided on the side. The two ends of the return spring (105) are connected to the heat-conducting metal sheet (103) and the sensor body (1) respectively. The fastening assembly includes a base plate (201), a fixing block (202), a first connecting rod (203) and a moving block (204). The base plate (201) is provided below the sensor body (1). The moving block (204) is provided on the inner side of the base plate (201). There are two sets of moving blocks (204). The two sets of moving blocks (204) are slidably connected to the base plate (201). The fixing block (202) is provided below the sensor body (1). There are two sets of fixing blocks (202). The first connecting rod (203) is provided on the inner side of the fixing block (202). The first connecting rod (203) is rotatably connected to the fixing block (202). The first connecting rod (203) is rotatably connected to the moving block (204).
2. The structure for improving temperature conduction of a temperature sensor according to claim 1, characterized by: The adjustment assembly includes a first threaded rod (301) and a second connecting rod (302). The first threaded rod (301) is provided on the inner side of the base plate (201). The first threaded rod (301) has two opposite threads. The first threaded rod (301) and the moving block (204) are threadedly connected. The two sets of moving blocks (204) are respectively located on the opposite threads at both ends of the first threaded rod (301). The second connecting rod (302) is provided at one end of the first threaded rod (301).
3. The structure for improving temperature conduction of a temperature sensor according to claim 2, characterized by: The adjustment assembly also includes a connecting block (303) and a handle (304). One end of the second connecting rod (302) is provided with the connecting block (303), and one side of the connecting block (303) is provided with the handle (304).
4. The structure for improving temperature conduction of a temperature sensor according to claim 1, characterized by: The mounting components include a mounting bracket (401) and a connecting ring (402). The mounting bracket (401) is located below the base plate (201), and the connecting ring (402) is located on the outside of the mounting bracket (401). There are three sets of connecting rings (402), and the connecting ring (402) and the mounting bracket (401) are rotatably connected.
5. The structure for improving temperature conduction of a temperature sensor according to claim 4, characterized by: The mounting assembly also includes a connecting plate (403) and a threaded tube (404). The connecting plate (403) is provided on one side of the connecting ring (402), and the threaded tube (404) is provided on the inner side of the connecting plate (403).
6. The structure for improving temperature conduction of a temperature sensor according to claim 5, characterized in that: The mounting assembly also includes a second threaded rod (405) and a connecting wheel (406). The second threaded rod (405) is provided on the inner side of the threaded tube (404). The second threaded rod (405) and the threaded tube (404) are threadedly connected. One end of the second threaded rod (405) is provided with a connecting wheel (406).
7. The structure for improving temperature conduction of a temperature sensor according to claim 6, wherein: The mounting assembly also includes a bearing (407) and a suction cup (408). One end of the second threaded rod (405) is provided with the bearing (407), and the suction cup (408) is provided above the bearing (407).