A temperature sensor assembly

Abstract

The utility model discloses a temperature sensor assembly relates to sensor technical field, and it is including: contact top cap, cover body, adjusting lever, connecting rod and signal acquisition subassembly, one end of cover body is equipped with contact top cap, and signal acquisition subassembly sets up in contact top cap inside, and the other end of cover body is equipped with adjusting lever, and contact top cap is used for with the object of detection contact, and contact top cap sets up the arc surface that protrudes outward, and the one end of adjusting lever away from cover body swing joint has connecting rod, and connecting rod is used for the fixed position of this sensor assembly. The utility model can reduce the error of heat conduction, insulate heat radiation, and then insulate the temperature acquisition deviation of the signal acquisition subassembly caused by the heat radiation in the oven, prolongs the service life of sensor in high temperature and high humidity environment, through the setting of adjusting lever and connecting rod, can play the role of contact top cap swing guide, has improved the accuracy and stability of the determination temperature, is applicable to a variety of scenes and uses.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically to a temperature sensor assembly. Background Technology

[0002] The operating status of an oven can be determined by measuring the temperature of its oven tray. Commonly, this is done using a temperature sensor.

[0003] However, all types of temperature sensors, whether contact, infrared non-contact, or built-in, suffer from low temperature measurement accuracy and poor contact stability, resulting in inaccurate temperature readings that fail to meet the accuracy requirements of practical applications. Utility Model Content

[0004] In view of this, the present invention provides a temperature sensor assembly to solve the problem that current temperature sensors are not accurate in measuring the temperature of oven trays.

[0005] According to a first aspect, embodiments of the present invention provide a temperature sensor assembly, comprising:

[0006] Contact top cap, outer cover, adjusting rod, connecting rod, and signal acquisition components;

[0007] The outer cover has a contact cap at one end, and the signal acquisition component is disposed inside the contact cap. The other end of the outer cover has an adjustment rod. The contact cap is used to contact the object to be detected. The contact cap is configured as an outwardly convex arc surface. The end of the adjustment rod away from the outer cover is movably connected to the connecting rod, which is used to fix the position of the sensor component.

[0008] In conjunction with the first aspect, in the first embodiment of the first aspect, the contact cap includes a cap body and a mounting tube fixedly connected to the cap body. The mounting tube is used to encapsulate the signal acquisition component. The mounting tube is connected to the outer cover body. The mounting tube is provided with a through hole for the wires of the signal acquisition component to pass through.

[0009] The outer cover includes:

[0010] The protective cover, sleeve, mounting cavity, and first through hole are provided. The protective cover and the sleeve are integrally formed. One end of the protective cover is provided with the contact cap, and the other end of the protective cover is provided with the sleeve. The sleeve is sleeved with the adjusting rod. The protective cover is provided with the mounting cavity for installing the mounting tube. The protective cover is provided with the first through hole that passes through the protective cover and the sleeve.

[0011] In conjunction with the first embodiment of the first aspect, in the second embodiment of the first aspect, the adjusting rod includes:

[0012] The rod body and the flange are sleeved together. The rod body is a hollow structure. The end of the rod body away from the sleeve is provided with a flange that surrounds the outside of the rod body and protrudes outward. The flange is slidably connected to the connecting rod.

[0013] In conjunction with the second embodiment of the first aspect, in the third embodiment of the first aspect, the connecting rod includes:

[0014] The rod body comprises an external thread, a receiving cavity, a spring, and a second through hole. The external thread is provided on the outside of the rod body, and the receiving cavity is provided inside the rod body. The flange is slidably connected to the receiving cavity. One end of the spring is disposed inside the receiving cavity, and the other end of the spring is in contact with the flange. The receiving cavity is provided with a second through hole that penetrates the receiving cavity.

[0015] In conjunction with the third embodiment of the first aspect, the fourth embodiment of the first aspect further includes:

[0016] A limiting cap is provided at the end of the rod that is close to the sleeve.

[0017] In conjunction with the fourth embodiment of the first aspect, in the fifth embodiment of the first aspect, the limiting cap includes:

[0018] An annular limiting disc is fixed to one end of the rod that is close to the sleeve.

[0019] In conjunction with the fifth embodiment of the first aspect, in the sixth embodiment of the first aspect, the limiting cap further includes:

[0020] The limiting disc body is provided with an annular sleeve protrusion, which is sleeved inside the receiving cavity.

[0021] In conjunction with the first embodiment of the first aspect, in the seventh embodiment of the first aspect, the protective cover and the sleeve are made of high-temperature resistant and corrosion-resistant materials.

[0022] In conjunction with the first aspect, in the eighth embodiment of the first aspect, the signal acquisition component adopts one of the following: a thermistor, a platinum resistance thermometer, a thermocouple, and a temperature switch.

[0023] In conjunction with the first aspect, in the ninth embodiment of the first aspect, the connection between the contact top cap and the outer cover, and the connection between the outer cover and the connecting rod, are both sealed.

[0024] The temperature sensor assembly of this utility model reduces heat conduction errors and isolates heat radiation through the outer casing, thereby preventing temperature acquisition deviations caused by heat radiation inside the oven. The outer casing also prevents oil, water vapor, and other contaminants from entering and causing short circuits or corrosion to the signal acquisition assembly, extending the sensor's service life in high-temperature and high-humidity environments. The non-planar contact cap ensures good contact with the object being detected at different angles, improving the stability of contact with the object. The adjustment rod and connecting rod guide the movement of the contact cap, allowing it to extend and retract within a certain range, improving the accuracy and stability of temperature measurement. It is suitable for use in various scenarios. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] in:

[0027] Figure 1 One of the structural schematic diagrams of the temperature sensor assembly provided by this utility model is shown;

[0028] Figure 2 This is a second schematic diagram of the structure of the temperature sensor assembly provided by this utility model;

[0029] Figure 3 A top view of the temperature sensor assembly provided by this utility model is shown;

[0030] Figure 4 It shows Figure 3 A cross-sectional view at point AA.

[0031] In the diagram: 10-Contact cap; 20-Outer cover; 21-Protective cover; 22-Sleeve; 23-Mounting cavity; 24-First through hole; 30-Adjusting rod; 31-Rod body; 32-Flange; 40-Connecting rod; 41-External thread; 42-Receiving cavity; 43-Spring; 44-Second through hole; 50-Limit cap; 51-Limit disc; 52-Sleeve protrusion; 60-Signal acquisition component. Detailed Implementation

[0032] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] It should be noted that similar reference numerals 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. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "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 this application based on the specific circumstances.

[0035] The operating status of an oven can be determined by measuring the temperature of its oven tray. Commonly, this is done using a temperature sensor.

[0036] However, all types of temperature sensors, whether contact, infrared non-contact, or built-in, suffer from low temperature measurement accuracy and poor contact stability, resulting in inaccurate temperature readings that fail to meet the accuracy requirements of practical applications.

[0037] Specifically, traditional contact temperature sensors measure temperature by directly contacting the tray with a metal probe, but this is prone to poor contact due to oven vibration, resulting in inaccurate temperature values. Infrared non-contact sensors are greatly affected by heat radiation inside the oven, causing the measurement results to deviate from the actual temperature value. Built-in fixed sensors have non-extendable temperature heads, which cannot adapt to the compaction requirements of trays of different thicknesses, and they lack heat radiation insulation design.

[0038] To address the aforementioned problems, a temperature sensor assembly is provided in this specification. For example... Figures 1 to 4 As shown, the sensor assembly includes:

[0039] The sensor assembly includes a contact cap 10, an outer cover 20, an adjusting rod 30, a connecting rod 40, and a signal acquisition component 60. The outer cover 20 has a contact cap 10 at one end, and the signal acquisition component 60 is housed inside the contact cap 10. The outer cover 20 reduces heat conduction errors and isolates heat radiation, thus preventing temperature acquisition deviations caused by heat radiation from inside the oven. The outer cover 20 also prevents oil and water vapor from entering and causing short circuits or corrosion to the signal acquisition component 60, providing waterproof and oil-proof protection and extending the sensor's lifespan in high-temperature and high-humidity environments. The other end of the outer cover 20 has an adjusting rod 30. The contact cap 10 is used to contact the object to be detected, such as an oven tray. The sensor assembly is used for temperature measurement. The contact cap 10 is designed with an outwardly convex arc surface. The non-planar design of the contact cap 10 ensures good contact with the object to be detected at different angles, improving the stability of contact with the object to be detected. The end of the adjusting rod 30 away from the outer cover 20 is movably connected to the connecting rod 40. The connecting rod 40 is used to fix the sensor assembly, for example, to fix the sensor assembly to the oven wall. The adjusting rod 30 is used to support the front end of the outer cover 20 and the contact cap 10 set on it. The adjusting rod 30 also serves as a guide, allowing the contact cap 10 to extend and retract within a certain stroke. The setting of the adjusting rod 30 and the connecting rod 40 improves the accuracy and stability of temperature measurement, making it suitable for use in various scenarios.

[0040] In this embodiment, the signal acquisition component 60 is encapsulated inside the contact top cap 10 and is used to acquire the temperature of the oven tray. Specifically, different temperature sensing elements such as thermistors, platinum resistance thermometers, thermocouples, and temperature switches can be used. The temperature sensing component of the signal acquisition component 60 can directly contact the contact top cap 10. In some special applications, such as when there are insulation withstand voltage requirements for the sensor component, the temperature sensing component of the signal acquisition component 60 contacts the contact top cap 10 through insulating media such as insulating glue or insulating film to meet the insulation withstand voltage requirements of the signal acquisition component 60.

[0041] Preferably, the temperature sensing element of the signal acquisition component 60 can be encapsulated inside the contact cap 10 using adhesive (such as epoxy resin, ceramic glue, etc.), or mechanical crimping can be used instead of adhesive encapsulation. After the temperature sensing element is connected to the wire, the wire is led out of the sensor component housing structure to the outside, and can be connected to the oven control board using a connector. Alternatively, it can be directly soldered to the oven control board.

[0042] More specifically, the contact cap 10 includes a cap body and a mounting tube fixedly connected to the cap body. The mounting tube is used to encapsulate the signal acquisition component 60. The mounting tube is connected to the outer cover 20, for example, by a threaded connection. The mounting tube has a through hole for the wires of the signal acquisition component 60 to pass through. The cap body is used to seal the outer cover 20.

[0043] More specifically, the outer cover 20 includes a protective cover 21, a sleeve 22, a mounting cavity 23, and a first through hole 24. The protective cover 21 and the sleeve 22 are integrally formed. One end of the protective cover 21 is provided with a contact cap 10, and the other end of the protective cover 21 is provided with a sleeve 22. The sleeve 22 is sleeved with the adjusting rod 30. The sleeve 22 and the adjusting rod 30 are sleeved in a manner that allows for... Figure 2 and Figure 4 The sleeve 22 shown is fitted onto the outside of the adjusting rod 30, or the sleeve 22 can be fitted onto the inside of the adjusting rod 30. The protective cover 21 is provided with an installation cavity 23 for installing the installation tube. The protective cover 21 is provided with a first through hole 24 that passes through the protective cover 21 and the sleeve 22. The first through hole 24 is used for the wire of the signal acquisition component 60 to pass through.

[0044] Preferably, the protective cover 21 and the sleeve 22 are made of high temperature and corrosion resistant materials, so that the outer cover 20 has sealing performance and reduces the error of heat conduction.

[0045] The adjusting rod 30 includes a rod body 31 and a flange 32. The rod body 31 serves as the main body of the adjusting rod 30 to ensure the structural strength of the adjusting rod 30. The rod body 31 is sleeved with the sleeve 22. The rod body 31 is hollow to allow the wires of the signal acquisition component 60 to pass through. The end of the rod body 31 away from the outer cover 20, i.e., the sleeve 22, is provided with a flange 32 that surrounds the outside of the rod body 31 and protrudes outward. The flange 32 is slidably connected to the connecting rod 40. The flange 32 improves the smoothness of the sliding process.

[0046] In this embodiment, the flange 32 also contacts and connects with the elastic component disposed inside the connecting rod 40. This allows the adjusting rod 30 to slide on the connecting rod 40 through the flange 32, and also allows the range of motion of the adjusting rod 30 to be limited and the adjusting rod 30 to be reset through the cooperation between the flange 32 and the elastic component.

[0047] The connecting rod 40 includes a rod body, an external thread 41, a receiving cavity 41, a spring 43, and a second through hole 44. The rod body, as the main body of the connecting rod 40, ensures the structural strength of the connecting rod 40. The external thread 31 is provided on the outside of the rod body, which can fix the position of the connecting rod 40 and also allows the connecting rod 40 to be separated from the fixed position. The receiving cavity 42 is provided inside the rod body, and the flange 32 is slidably connected to the receiving cavity 42. The spring 43 is the aforementioned elastic component. One end of the spring 43 is located inside the receiving cavity 42, and the other end of the spring 43 is in contact with the flange 32. Thus, when the rod body 31 of the adjusting rod 30 is squeezed or stretched, the rod body 31 will compress or release the spring 43 with the flange 32. This, combined with the sliding of the flange 32 and the receiving cavity 42, allows the adjusting rod 30 to slide at the connecting rod 40. Similarly, the receiving cavity 42 is provided with a second through hole 44 that passes through the receiving cavity 42. The second through hole 44 is used for the wire of the signal acquisition component 60 to pass through.

[0048] Specifically, one end of the spring 43 can be fixed inside the receiving cavity 42. This end of the spring 43 can also be limited by the mounting part provided inside the receiving cavity 42. For example, the opening of the receiving cavity 42 near the end of the spring 43 is gradually tightened, that is, the diameter of the end of the receiving cavity 42 is smaller than the diameter of the cavity body. In this way, one end of the spring 43 can be limited by the end of the receiving cavity 42 to prevent the spring 43 from coming out. The other end of the spring 43 can be fixed to the flange 32. This end of the spring 43 can also contact and connect with the flange 32 in the normal released state without external force. That is, the spring 43 will contact and connect with the flange 32 in the released state, i.e., the spring 43 abuts against the flange 32. When the spring 43 drives the flange 32 to slide in the receiving cavity 42 under the drive of the adjusting rod 30, the flange 32 squeezes the spring 43, and the spring 43 is compressed. The limit compression distance of the spring 43 is also the limit adjustment distance of the adjusting rod 30.

[0049] In this embodiment, the sensor assembly is also provided with a limiting cap 50. The limiting cap 50 is located at one end of the rod that is close to the outer cover 20. The limiting cap 50, together with the spring 43, restricts the range of motion of the adjusting rod 30. When the sleeve 22 of the outer cover 20 contacts the limiting cap 50, the ultimate compression of the spring 43 is limited.

[0050] More specifically, the limiting cap 50 includes an annular limiting disc 51, which is fixed to one end of the rod that is close to the sleeve 22. Therefore, when the sleeve 22 of the outer cover 20 contacts the limiting disc 51, the extreme compression of the spring 43 is limited. The annular shape ensures that the wire can pass through the center part of the limiting disc 51.

[0051] The limiting cap 50 also includes an annular socket protrusion 52 on the limiting disc 51. The annular design ensures that the wire can pass through the center of the socket protrusion 52. The socket protrusion 52 is fitted inside the receiving cavity 42. The socket protrusion 52 limits the travel of the flange 32 and the spring 43. When the flange 32 contacts the socket protrusion 52, it can limit the flange 32 and prevent the spring 43 from popping out.

[0052] In this embodiment, the end where the contact cap 10 is connected to the protective cover 21 (i.e., the connection point), the end where the sleeve 22 is connected to the rod body 32, and the end where the limiting disc 52 is connected to the sleeve 22 can be fixed by other welding methods such as brazing or by mechanical pressing and interference fit.

[0053] Considering the sealing of the connection and the waterproof and oil-proof effect of the outer cover 20, the connection between the top cap 10 and the protective cover 21, and the connection between the sleeve 22 and the rod body 32 are sealed. That is, the connection between the top cap 10 and the outer cover 20, and the connection between the outer cover 20 and the connecting rod 30 are all sealed.

[0054] The temperature sensor assembly of this utility model, through the setting of the outer cover 20, can reduce the error of heat conduction and avoid heat radiation, thereby isolating the temperature acquisition deviation caused by heat radiation inside the oven to the signal acquisition component 60. The setting of the outer cover 20 can also prevent oil, water vapor and other substances from entering and causing short circuits or corrosion of the signal acquisition component 60, thus extending the service life of the sensor in high temperature and high humidity environments. The non-planar setting of the contact top cap 10 ensures good contact with the object to be detected at different angles, improving the stability of contact with the object to be detected. Through the setting of the adjusting rod 30 and the connecting rod 40, the movement of the contact top cap can be guided, allowing the contact top cap 10 to extend and retract within a certain stroke, improving the accuracy and stability of temperature measurement, and making it suitable for use in a variety of scenarios.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A temperature sensor assembly, characterized in that, include: Contact top cap, outer cover, adjusting rod, connecting rod, and signal acquisition components; The outer cover has a contact cap at one end, and the signal acquisition component is located inside the contact cap. The other end of the outer cover has an adjustment rod. The contact cap is used to contact the object to be detected. The contact cap is configured as an outwardly convex arc surface. The end of the adjustment rod away from the outer cover is movably connected to the connecting rod, which is used to fix the position of the sensor component.

2. The temperature sensor assembly according to claim 1, characterized in that, The contact top cap includes a cap body and a mounting tube fixedly connected to the cap body. The mounting tube is used to encapsulate the signal acquisition component. The mounting tube is connected to the outer cover. The mounting tube has a through hole for the wires of the signal acquisition component to pass through. The outer cover includes: The protective cover, sleeve, mounting cavity, and first through hole are provided. The protective cover and the sleeve are integrally formed. One end of the protective cover is provided with the contact cap, and the other end of the protective cover is provided with the sleeve. The sleeve is sleeved with the adjusting rod. The protective cover is provided with the mounting cavity for installing the mounting tube. The protective cover is provided with the first through hole that passes through the protective cover and the sleeve.

3. The temperature sensor assembly according to claim 2, characterized in that, The adjusting rod includes: The rod body and the flange are sleeved together. The rod body is a hollow structure. The end of the rod body away from the sleeve is provided with a flange that surrounds the outside of the rod body and protrudes outward. The flange is slidably connected to the connecting rod.

4. The temperature sensor assembly according to claim 3, characterized in that, The connecting rod includes: The rod body comprises an external thread, a receiving cavity, a spring, and a second through hole. The external thread is provided on the outside of the rod body, and the receiving cavity is provided inside the rod body. The flange is slidably connected to the receiving cavity. One end of the spring is disposed inside the receiving cavity, and the other end of the spring is in contact with the flange. The receiving cavity is provided with a second through hole that penetrates the receiving cavity.

5. The temperature sensor assembly according to claim 4, characterized in that, Also includes: A limiting cap is provided at the end of the rod that is close to the sleeve.

6. The temperature sensor assembly according to claim 5, characterized in that, The limiting cap includes: An annular limiting disc is fixed to one end of the rod that is close to the sleeve.

7. The temperature sensor assembly according to claim 6, characterized in that, The limiting cap also includes: The limiting disc body is provided with an annular sleeve protrusion, which is sleeved inside the receiving cavity.

8. The temperature sensor assembly according to claim 2, characterized in that, The protective cover and the sleeve are made of high-temperature resistant and corrosion-resistant materials.

9. The temperature sensor assembly according to claim 1, characterized in that, The signal acquisition component uses one of the following: thermistor, platinum resistance thermometer, thermocouple, or temperature switch.

10. The temperature sensor assembly according to claim 1, characterized in that, The connection between the top cap and the outer cover, and the connection between the outer cover and the connecting rod are all sealed.

Images