Contact type high-temperature-resistant temperature sensor
By designing a contact-type high-temperature resistant temperature sensor, using the fixing method of copper shell and bent metal sheet, the problem of inconvenience in fixing of traditional temperature sensors is solved, high sensitivity and durability are achieved, and suitable for surface measurements such as complex working conditions and boilers.
Patent Information
- Application Number
- CN202421392364.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-18
AI Technical Summary
Traditional temperature sensors are inconvenient to fix the surface temperature, especially in boiler surface temperature measurements. The existing sensor design cannot directly adapt to various surface shapes and materials, resulting in unstable fixation or inconvenient use.
A contact-type high-temperature temperature sensor is designed, using a copper shell and a bent metal sheet to fix the temperature sensor on the mounting block, and the sensor chip is fixed in the inner convex groove of the copper shell through a glue pad to ensure the stable fixation of the sensor.
It realizes the characteristics of the temperature sensor to be highly sensitive, high temperature resistance, pull resistance and adapt to complex working conditions. At the same time, the sensor is firmly fixed in the circular measuring area such as boilers, which is easy to use and has a wide range of applications.
Smart Images
Figure CN222671250U_ABST
Abstract
Description
Technical Field
[0001] A contact high-temperature resistant temperature sensor provided by the utility model belongs to the technical field of temperature sensors. Background Art
[0002] A temperature sensor refers to a device used to sense temperature and convert it into an available output signal. As a key component of a temperature measuring instrument, temperature sensors have various classification methods. According to the measurement method, they can be divided into two categories: contact type and non-contact type. According to the characteristics of sensor materials and electronic components, they can be divided into two categories: thermal resistors and thermocouples. Traditional temperature sensors often face the problem of inconvenient fixation when measuring surface temperature, especially in some special application scenarios, such as measuring the surface temperature of boilers. The sensor needs to be firmly fixed on the target surface to ensure accurate temperature measurement. However, the existing sensor designs often cannot directly adapt to various surface shapes and materials, resulting in the need to use other methods for fixation in actual applications, which may lead to problems such as unstable fixation or inconvenient use. Therefore, this application proposes a solution to the problem of inconvenient fixation of temperature sensors in surface temperature measurement scenarios such as cooking robots and boilers. Content of the Utility Model
[0003] A contact high-temperature resistant temperature sensor provided by the utility model can solve the problem of inconvenient fixation of traditional temperature sensors.
[0004] To solve the above problems, the technical solution proposed by the utility model is as follows: On one side of the mounting block (1), a temperature sensor (2) body is installed. The temperature sensor (2) body has a copper shell. The temperature sensor (2) body is fixed to the mounting block (1) by bending three metal sheets extending from the copper shell (12). The pins (8) of the sensing chip (15) in the temperature sensor (2) body are connected to the electronic wire (18). The electronic wire is fixedly wound around the circular fixing hole (5) on the right side of the mounting block, passes through the circular fixing hole (5) and extends outward, and the wire end is stripped and tinned (10).
[0005] Preferably, the mounting block (1) has a "Lv" - shaped structure, and a groove (11) is provided at the intersection; the mounting block (1) is made of high-temperature resistant material; three oval fixing holes (3) are distributed in the middle of the mounting block (1), and three circular fixing holes (4), (5), and (6) are distributed around it.
[0006] Preferably, the temperature sensor (2) body is composed of a sensor chip (15), a copper shell (13), a heat-conducting medium and a rubber pad (14). The temperature sensor body structure is a copper material as a heat-conducting shell, and the copper shell has a specially made convex groove (16) inside. The size and depth of the convex groove (16) are equal to the size and thickness of the sensor chip (15). Therefore, the convex groove (16) can be filled with a heat-conducting medium to improve the heat conduction efficiency, and then the sensor chip (15) is tightly embedded in the convex groove by squeezing the rubber pad (14). Since the size of the rubber pad is larger than the length and width of the convex groove, and the rubber pad is soft, damage to the sensor chip due to excessive squeezing is avoided. Finally, the extended metal sheets (7) on the three sides of the bottom of the copper shell (13) are inserted into the three elliptical fixing holes (3) in the middle of the mounting block and bent (12). The copper shell (13) is fixed to the surface of the mounting block (1) by bending the copper shell metal sheet (12), thereby ensuring that the sensor chip (15) is squeezed and embedded in the convex groove (16) of the copper shell through the rubber pad (14).
[0007] Preferably, the sensor chip (15) is a square platinum resistor, the upper surface of which is in contact with the convex groove (16) of the copper shell (13) via thermally conductive silicone grease, and the lower surface of which is in contact with the rubber pad (14).
[0008] Preferably, the pin (8) of the sensor chip (15) and the electronic wire (18) are connected at the welding point (17) by laser welding. The pin (8) and the electronic wire (18) are placed inside a high-temperature sleeve (19), and the high-temperature sleeve (19) is fixed in a winding manner (20) at the groove (11), and finally extends through the circular fixing hole (5).
[0009] Preferably, the end of the electronic wire (18) is stripped and tinned (10).
[0010] Preferably, the glue-fixing area (21) at the intersection of the electronic wire and the circular fixing hole (5) is glue-fixed using silicone rubber.
[0011] Beneficial effects of the utility model:
[0012] The utility model fixes the sensor chip in the convex groove inside the copper shell by means of a rubber pad, and then fixes the temperature sensor to the mounting block by means of a metal sheet extending from the copper shell passing through the mounting block and being bent and fixed. The mounting block realizes winding fixation of the electronic wire through the hole groove. This makes the sensor have the characteristics of high sensitivity, high temperature resistance, pulling resistance, and adaptability to complex working conditions. And based on the two circular fixing holes of the mounting block, the temperature sensor is installed on an elastic clamp, etc., so that the sensor is firmly fixed in a circular measuring area such as a boiler, which is easy to use and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model is a structural schematic diagram of a contact type high temperature resistant temperature sensor.
[0014] Figure 2 It is a side sectional view of a contact-type high-temperature resistant temperature sensor of the utility model.
[0015] Figure 3 The utility model is a schematic diagram of the installation method of a contact type high temperature resistant temperature sensor in a boiler.
[0016] Legend: 1. Mounting block; 2. Temperature sensor body; 3. Elliptical fixing hole; 4-6. Circular fixing hole; 7. Metal sheet; 8. Pin; 9. High-temperature sleeve; 10. Wire stripping and tinning; 11. Groove; 12. Bending; 13. Copper shell; 14. Rubber pad; 15. Sensor chip; 16. Convex groove; 17. Welding point; 18:, electronic wire; 19. High-temperature sleeve; 20. Wrapping fixation; 21. Glue fixing area; 22. Fixed position; 23. Tray; 24. Boiler. DETAILED DESCRIPTION
[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following is attached Figure 1 and attached Figure 2 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0019] In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.
[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0021] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application 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 on the present application.
[0022] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" 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 communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0023] The following further describes the present utility model with reference to the drawings.
[0024] According to Figure 1 and Figure 2 As shown in
[0025] According to Figure 1 and Figure 2As shown, the utility model provides a contact-type high-temperature resistant temperature sensor: the mounting block (1) is provided with a temperature sensor (2) body on one side. The temperature sensor (2) body is composed of a sensor chip (15), a copper shell (13), a heat-conducting medium and a rubber pad (14). The structure of the temperature sensor body is a heat-conducting shell made of copper material, and the copper shell has a special convex groove (16) inside. The size and depth of the convex groove (16) are equal to the size and thickness of the sensor chip (15). Therefore, the convex groove (16) can be filled with a heat-conducting medium to improve the heat conduction efficiency, and then the sensor chip (15) can be tightly embedded in the convex groove by squeezing the rubber pad (14). Since the size of the rubber pad is larger than the length and width of the convex groove, and the rubber pad is soft in texture, damage to the sensor chip due to excessive squeezing can be avoided. Finally, the extended metal sheets (7) on the three sides of the bottom of the copper shell (13) are inserted into the three elliptical fixing holes (3) in the middle of the mounting block and bent (12). The copper shell (13) is fixed to the surface of the mounting block (1) by bending the copper shell metal sheet (12), thereby ensuring that the sensor chip (15) is squeezed and embedded in the convex groove (16) of the copper shell through the rubber pad (14).
[0026] according to Figure 1 and Figure 2 As shown, the utility model provides a contact-type high-temperature resistant temperature sensor: the pin (8) of the sensor chip (15) and the electronic wire (18) are connected at the welding point (17) by laser welding. The pin (8) and the electronic wire (18) are placed inside the high-temperature sleeve (19), fixed in a winding manner (20) at the groove (11), and finally extended through the circular fixing hole (5); the end of the electronic wire (18) is stripped and tinned (10); the glue fixing area (21) at the intersection of the electronic wire and the circular fixing hole (5) is glue fixed by silicone rubber.
[0027] according to Figure 3 As shown, the utility model is suitable for the application environment of boiler temperature detection of a cooking robot. The environment mainly includes two parts: a bottom tray (23) and a boiler (24). Through the fixing pins and the circular fixing holes (4) and (6), the mounting block (1) is firmly mounted on the fixed position (22) of the bottom tray. The boiler (24) is in contact with the tray (23), so that the temperature sensor body is precisely fitted on the surface of the boiler to achieve accurate temperature measurement. It should be made clear that this figure is only used to better demonstrate the use of the utility model and does not limit its scope of application.
[0028] Principle of the utility model:
[0029] During operation, bolts or fixing pins are passed through the circular fixing holes (4) and (6) of the mounting block (1) as required to fix the mounting block (1) to the environment to be measured, and the temperature sensor body (2) is attached to the measuring surface to collect temperature.
[0030] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A contact type high temperature resistant temperature sensor, comprising a mounting block (1), characterized in that: The installation block (1) has a temperature sensor (2) body mounted on one side. The temperature sensor (2) body has a copper shell. The temperature sensor (2) body is fixed to the installation block (1) by bending (12) three metal sheets extending from the copper shell. The pins (8) of the sensing chip (15) in the temperature sensor (2) body are connected to the electronic wire (18). The electronic wire is fixed to the circular fixing hole (5) on the right side of the installation block in a winding manner, passes through the circular fixing hole (5) and extends outwards, and has its end stripped and tinned (10).
2. A contact type high temperature resistant temperature sensor according to claim 1, characterized in that: The installation block (1) has a "Lv"-shaped structure with a groove (11) at the intersection. The installation block (1) is made of a high-temperature resistant material. Three oval fixing holes (3) are distributed in the middle of the installation block (1), and three circular fixing holes (4), (5), and (6) are distributed around it.
3. The contact-type high-temperature resistant temperature sensor according to claim 1, characterized in that: The temperature sensor (2) body is composed of a sensing chip (15), a copper shell (13), a heat-conducting medium, and a rubber pad (14). The structure of the temperature sensor body is such that the copper material is used as the heat-conducting shell. There is a special convex groove (16) inside the copper shell. The size and depth of the convex groove (16) are equal to the size and thickness of the sensing chip (15). Therefore, the heat-conducting medium can be filled in the convex groove (16) first to improve the heat conduction efficiency, and then the sensing chip (15) is tightly embedded in the convex groove by squeezing with the rubber pad (14). Finally, the extended metal sheets (7) on three sides of the bottom of the copper shell (13) are inserted into the three oval fixing holes (3) in the middle of the installation block and bent (12). The copper shell (13) is fixed to the surface of the installation block (1) by bending the metal sheets of the copper shell (12), thereby ensuring that the sensing chip (15) inside the copper shell (13) is embedded in the convex groove (16) of the copper shell by the squeezing of the rubber pad (14).
4. The contact-type high-temperature resistant temperature sensor according to claim 1, characterized in that: The pins (8) of the sensing chip (15) and the electronic wire (18) are connected by laser welding at the welding point (17). The pins (8) and the electronic wire (18) are placed inside the high-temperature sleeve (19). The high-temperature sleeve is fixed in a winding manner (20) at the groove (11), and finally extends through the circular fixing hole (5). The end of the electronic wire (18) is stripped and tinned (10). The glue-pointing fixing area (21) at the intersection of the electronic wire and the circular fixing hole (5) is fixed by glue-pointing with silicone rubber.