Temperature and humidity sensor

Abstract

The utility model relates to a temperature and humidity sensor, and relates to the technical field of sensors. The humidity sensor is provided with a containing cavity and a shell of the containing cavity which are not communicated, a detection hole is formed in the shell, the detection hole is communicated with the containing cavity, the probe is arranged in the containing cavity, one end of the probe extends towards the detection hole, the other end of the probe is electrically connected with the display panel, and therefore the probe makes contact with the external environment through the detection hole. Therefore, the temperature value and the humidity value of the use environment of a user can be detected in real time, the other end of the probe is connected with the display panel, the measured temperature value and the measured humidity value can be displayed on the display panel, the backlight plate is arranged on the non-display side of the display panel, and light is projected to the display panel, so that displayed parameters are clearer. The backlight plate capable of heating is arranged in the accommodating cavity, and the probe is arranged in the accommodating cavity, so that the influence of heat generated by the backlight plate on the probe is reduced, and the measurement precision of the temperature and humidity sensor is improved.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and in particular to a temperature and humidity sensor. Background Technology

[0002] A temperature and humidity sensor is a sensor that measures the temperature and humidity in the air. It contains humidity-sensitive and temperature-sensitive elements. After measuring the temperature and humidity, it can convert the measured values ​​into electrical signals or other desired forms of information output according to a certain rule to meet diverse user needs. Due to its small size and stable performance, this sensor is widely used in many fields of production and daily life.

[0003] Currently, temperature and humidity sensors generate a lot of heat during operation, which adversely affects the measurement accuracy of temperature and humidity probes, causing deviations in the temperature and humidity measurement results. Utility Model Content

[0004] Based on this, this application provides a temperature and humidity sensor to improve the measurement accuracy of the temperature and humidity sensor.

[0005] This application provides a temperature and humidity sensor, which includes:

[0006] The housing has a non-communicating accommodating cavity and a receiving cavity; the housing has a detection hole that communicates with the accommodating cavity; the housing also has a light-transmitting area.

[0007] A display module is disposed within a receiving cavity. The display module includes a display panel and a backlight panel. The backlight panel is disposed on the non-display side of the display panel, and the display side of the display panel is disposed corresponding to the light-transmitting area.

[0008] The probe is placed inside the accommodating cavity, with one end extending toward the detection hole and the other end electrically connected to the display panel.

[0009] In one embodiment, the housing includes a first part and a second part connected to each other, the first part having a receiving cavity and a detection hole thereon; the second part having a receiving cavity.

[0010] In one embodiment, the temperature and humidity sensor further includes:

[0011] A first conductive part is disposed in the first part, and the first conductive part is electrically connected to the probe;

[0012] A second conductive part is disposed in the second part; one end of the second conductive part is in contact with the first conductive part so that the first conductive part and the second conductive part are electrically connected, and the other end of the second conductive part is electrically connected to the display panel.

[0013] In one embodiment, one of the first conductive part and the second conductive part is a spring-loaded terminal block, and the other is a copper sheet contact terminal block.

[0014] In one embodiment, the first part has a detection area and an installation area, and a first groove is formed on the first part. The first groove is located in the detection area, and a detection hole is formed on the bottom wall of the first groove.

[0015] In one embodiment, the first part and the second part are detachably connected.

[0016] In one embodiment, the temperature and humidity sensor further includes a limiting part and a mating part that cooperate with each other. The limiting part is disposed on one of the first part and the second part, and the mating part is disposed on the other part.

[0017] In one embodiment, the limiting part includes a buckle, and the mating part includes a slot.

[0018] In one embodiment, the first part has a middle region and an edge region surrounding the middle region, and the limiting part includes a protrusion disposed in the edge region; the mating part includes a limiting groove formed on the second part.

[0019] The temperature and humidity sensor also includes a force-applying component located in the edge area. The force-applying component is located on the side of the protrusion away from the middle area, and the force-applying direction of the force-applying component is parallel to the opening direction of the limiting groove.

[0020] In one embodiment, the temperature and humidity sensor further includes a magnetic element disposed within the accommodating cavity.

[0021] The aforementioned temperature and humidity sensor has a non-communicating accommodating cavity and a housing containing the cavity. A detection hole is provided on the housing, which communicates with the accommodating cavity. A probe is positioned within the accommodating cavity, with one end extending towards the detection hole and the other end electrically connected to the display panel. Thus, the probe contacts the external environment through the detection hole, enabling real-time detection of the temperature and humidity values ​​of the user's environment. Since the other end of the probe is connected to the display panel, the measured temperature and humidity values ​​can be displayed on the panel. A backlight is positioned on the non-display side of the display panel, projecting light onto the panel to make the displayed parameters clearer. Because the heat-generating backlight is located within the accommodating cavity, and the probe is also located within the accommodating cavity, the impact of the heat generated by the backlight on the probe is reduced, improving the measurement accuracy of the temperature and humidity sensor. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the temperature and humidity sensor in some embodiments of this application.

[0023] Figure 2 for Figure 1A schematic diagram of the exploded structure of the temperature and humidity sensor in the image.

[0024] Figure 3 for Figure 2 A three-dimensional structural diagram of the spring-loaded terminal block in the temperature and humidity sensor.

[0025] Figure 4 for Figure 2 A three-dimensional structural diagram of the copper contact terminal block in the temperature and humidity sensor.

[0026] Figure 5 for Figure 2 A schematic diagram of the exploded structure of the first part of the temperature and humidity sensor.

[0027] Figure 6 for Figure 2 A three-dimensional structural diagram of the second part of the temperature and humidity sensor.

[0028] The reference numerals in the detailed embodiments are as follows:

[0029] 100. Temperature and humidity sensor; 1. Housing; 11. First part; 12. Second part; A. Receiving cavity; R. Receiving cavity; K. Detection hole; TQ. Light-transmitting area; 2. Display module; 21. Display panel; 22. Backlight panel; 3. Probe; 41. First conductive part; 42. Second conductive part; 41a. Spring contact terminal block; 42a. Copper contact terminal block; C1. First groove; JQ. Detection area; EQ. Mounting area; 51a. Snap-on; 52a. Slot; 51b. Protrusion; 52b. Limiting groove; 6. Force-applying component; 7. Magnetic component; Z. Middle area; B. Edge area. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 This paper shows a three-dimensional structural schematic diagram of the temperature and humidity sensor 100 in some embodiments of this application. Figure 2 It shows Figure 1 An exploded view of the temperature and humidity sensor 100. The temperature and humidity sensor 100 provided in this application includes a housing 1, a display module 2, and a probe 3.

[0037] The housing 1 is the basis of the temperature and humidity sensor 100, and can be configured as any structure and shape that is easy to connect and move, such as plate or block. This application does not limit it.

[0038] The display module 2 includes a display panel 21 and a backlight panel 22. The display panel 21 has a display side and a non-display side. The display side of the display panel 21 can display the measured temperature and humidity values. The backlight panel 22 is located on the non-display side of the display panel 21 and emits light to the display panel 21, making the values ​​displayed on the display panel 21 clearer, brighter and easier to read.

[0039] Furthermore, the housing 1 has a light-transmitting area TQ, and the display side of the display panel 21 is set corresponding to the light-transmitting area TQ on the housing 1. The setting of the light-transmitting area TQ allows the operator to see the numerical parameters displayed on the display panel 21 inside the receiving cavity R of the housing 1 from the outside by means of the light-transmitting area TQ.

[0040] One end of the probe 3 extends toward the detection hole K, and the other end is electrically connected to the display panel 21. In this way, the probe 3 is in contact with the external environment through the detection hole K, thereby enabling real-time detection of the temperature and humidity values ​​of the user's environment. The other end of the probe 3 is connected to the display panel 21, allowing the measured temperature and humidity values ​​to be displayed on the display panel 21.

[0041] The probe 3 specifically includes a temperature probe 3 and a humidity probe 3. The temperature probe 3 is composed of temperature-sensing elements such as thermistors and thermocouples. For example, the resistance value of a thermistor will decrease or increase with rising temperature. By measuring the resistance change of these elements, the ambient temperature can be accurately determined. The humidity probe 3 is based on the principle of capacitive or resistive humidity sensors. Capacitive humidity sensors measure relative humidity by utilizing the property that water molecules adsorb on the dielectric layer, causing a change in capacitance; resistive humidity sensors measure ambient humidity by utilizing the effect of water molecules on the conductivity of the electrolyte. The probe 3 is housed within the accommodating cavity A, eliminating the need for exposure to the external environment, simplifying the installation of the temperature and humidity sensor 100 and improving its aesthetics.

[0042] In this application, the backlight panel 22 is housed in the receiving cavity R, and the probe 3 is housed in the receiving cavity A. The receiving cavity A and the receiving cavity R are not connected to each other, thus reducing the impact of the heat generated by the backlight panel 22 on the probe 3 and improving the measurement accuracy of the temperature and humidity sensor 100.

[0043] In some embodiments of this application, see further reference. Figure 1 and Figure 2 The housing 1 includes a first part 11 and a second part 12 connected to each other. The first part 11 has a receiving cavity A and a detection hole K is provided on the first part 11. The second part 12 has a receiving cavity R.

[0044] The system comprises two independent housings 1, a first part 11 and a second part 12, reducing the risk that damage to one part 11 or the second part 12 could directly affect the other, thus preventing a chain reaction of accidents. Compared to housing cavity A and cavity R within the same housing 1, the size and dimensions of cavity A and cavity R are not affected by the other, resulting in greater flexibility in the overall structure. During maintenance, the two independent housings 1 can be operated independently without affecting each other.

[0045] In some embodiments of this application, reference continues to be made to... Figure 1 and Figure 2 The temperature and humidity sensor 100 also includes a first conductive part 41 and a second conductive part 42. The first conductive part 41 is disposed in the first part 11, and the second conductive part 42 is disposed in the second part 12. The first conductive part 41 is electrically connected to the probe 3. One end of the second conductive part 42 is in contact with the first conductive part 41 so that the first conductive part 41 and the second conductive part 42 are electrically connected. The other end of the second conductive part 42 is electrically connected to the display panel 21.

[0046] Specifically, in this application, the first conductive part 41 and the second conductive part 42 are attached together, so that the first conductive part 41 and the second conductive part 42 are in contact and conduct electricity. This application also includes a power source, which can be disposed inside the housing 1 or outside the housing 1.

[0047] Compared to a physical wire connecting the probe 3 and the display panel 21, which is prone to loosening or breakage due to mechanical vibration, pulling, or long-term use, the contact connection using the first conductive part 41 and the second conductive part 42 is more stable and improves the reliability of equipment operation. Furthermore, without the constraint of a physical wire, the layout and installation of the probe 3 and the display panel 21 are more flexible, allowing for adjustments based on actual space and usage requirements. This flexibility is particularly prominent in situations with limited space or complex structures.

[0048] In some embodiments of this application, reference continues to be made to... Figure 1 and Figure 2 and in conjunction with reference Figure 3 and Figure 4 , Figure 3 It shows Figure 2 A three-dimensional structural diagram of the spring-loaded terminal block 41a in the temperature and humidity sensor 100. Figure 4 It shows Figure 2 A three-dimensional structural diagram of the copper sheet contact terminal block 42a in the temperature and humidity sensor 100. One of the first conductive part 41 and the second conductive part 42 is a spring-loaded terminal block 41a, and the other is a copper sheet contact terminal block 42a.

[0049] It is understandable that the first conductive part 41 can be configured as a spring-loaded terminal block 41a and the second conductive part 42 can be configured as a copper sheet contact terminal block 42a, or the first conductive part 41 can be configured as a copper sheet contact terminal block 42a and the second conductive part 42 can be configured as a spring-loaded terminal block 41a.

[0050] Among them, the "spring-loaded terminal block 41a" is a common electrical connection component, the core of which is the spring. The spring is usually made of a flexible metal material, such as phosphor bronze or beryllium bronze. These materials possess both good conductivity and a certain degree of mechanical strength and elasticity. The spring-loaded terminal block 41a comes in various shapes, commonly including insert type, hook type, and spring type structures. It achieves tight contact with the corresponding conductive part through the elastic deformation of the spring, thereby establishing a reliable electrical connection. The "copper sheet contact terminal block 42a" mainly uses copper sheets as conductive contacts. Copper sheets typically have good electrical and thermal conductivity. Its structure is relatively simple, generally consisting of a copper sheet fixed on an insulating base. The base material is often plastic, ceramic, or other materials with good insulating properties. The shape of the copper sheet can be designed in various forms, such as planar, cylindrical, or comb-shaped, to adapt to different connection requirements.

[0051] The elastic deformation of the spring generates sufficient contact pressure between the spring and the copper sheet, forming a good electrical contact. Current flows into the spring through the wire of the spring terminal block 41a, then through the contact surface between the spring and the copper sheet, and into the wire of the copper sheet contact terminal block 42a, thus realizing current conduction. This connection method has the advantages of simple connection, low contact resistance, and stable conductivity.

[0052] In some embodiments of this application, reference continues to be made to... Figure 1 and Figure 2 and in conjunction with reference Figure 5 , Figure 5 It shows Figure 2 A three-dimensional structural diagram of the first part 11 of the temperature and humidity sensor 100 is shown. The first part 11 has an installation area EQ and a detection area JQ. A first groove C1 is provided on the first part 11, and the first groove C1 is located in the detection area JQ. A detection hole K is opened on the bottom wall of the first groove C1.

[0053] The detection area JQ is the area where the detection hole K is opened. The area where the second part 12 is installed on the first part 11 is the mounting area EQ. A first groove C1 is provided on the first part 11.

[0054] In this way, the detection area JQ where the detection hole K is located is separated from the installation area EQ of the second part 12, which can effectively prevent the measurement error caused by the external force transmitted to the probe 3 during the installation of the second part 12. At the same time, it reduces the obstruction of the airflow of the detection hole K by the installation components, ensures the independence of the detection environment, and improves the detection accuracy of the temperature and humidity sensor 100.

[0055] In some embodiments of this application, reference continues to be made to... Figure 1 , Figure 2 and Figure 5 and in conjunction with reference Figure 6 , Figure 6 It shows Figure 2 A three-dimensional structural diagram of the second part 12 of the temperature and humidity sensor 100. The first part 11 and the second part 12 are detachably connected.

[0056] The detachable connection allows the first part 11 and the second part 12 to be separated when maintenance, repair, or replacement of components inside the first part 11 or the second part 12 is required, enabling independent maintenance of the components within the first part 11 or the second part 12. During transport of the temperature and humidity sensor 100, the first part 11 and the second part 12 can be disassembled and stored separately, saving space.

[0057] In some embodiments of this application, reference continues to be made to... Figures 1 to 6The temperature and humidity sensor 100 also includes a limiting part and a mating part that cooperate with each other. The limiting part is disposed on one of the first part 11 and the second part 12, and the mating part is disposed on the other.

[0058] In some embodiments of this application, reference continues to be made to... Figures 1 to 6 The temperature and humidity sensor 100 also includes a limiting part and a mating part that cooperate with each other. The limiting part is disposed on one of the first part 11 and the second part 12, and the mating part is disposed on the other.

[0059] Thus, the setting of the limiting part and the mating part can effectively reduce the risk of relative displacement or rotation of the first part 11 and the second part 12 after connection, thereby ensuring stable contact between the first conductive part 41 and the second conductive part 42 and improving the reliability of the temperature and humidity sensor 100.

[0060] In some other embodiments, a detachable connection, such as a threaded connection, may also be used.

[0061] In some embodiments of this application, reference continues to be made to... Figures 1 to 6 The limiting part includes a buckle 51a, and the mating part includes a slot 52a.

[0062] The design of the snap-fit ​​51a and the slot 52a allows for quick connection between the first part 11 and the second part 12. Simply align the snap-fit ​​51a with the slot 52a and apply appropriate pressure; the snap-fit ​​51a will automatically lock into the slot 52a, completing the connection. This design eliminates the need for additional tools or complex installation steps, greatly improving installation efficiency. Similarly, during disassembly, simply apply appropriate force to the snap-fit ​​51a to disengage it from the slot 52a, easily separating the first part 11 and the second part 12. This design is suitable for frequent disassembly and installation of the temperature and humidity sensor 100. Furthermore, the cooperation between the snap-fit ​​51a and the slot 52a effectively reduces the relative displacement and rotation between the first part 11 and the second part 12, resulting in more stable contact between the first conductive part 41 on the first part 11 and the second conductive part 42 on the second part 12. Furthermore, the structure of the buckle 51a and the slot 52a can be manufactured using injection molding, stamping and other manufacturing processes, and integrated with the first part 11 or the second part 12, which reduces the number of parts and assembly steps of the temperature and humidity sensor 100 and lowers the production cost.

[0063] In some embodiments of this application, reference continues to be made to Figures 1 to 6The first part 11 has a middle region Z and an edge region B surrounding the middle region Z. The limiting part includes a protrusion 51b, which is disposed in the edge region B. The mating part includes a limiting groove 52b, which is opened on the second part 12. The temperature and humidity sensor 100 also includes a force-applying member 6 disposed in the edge region B. The force-applying member 6 is disposed on the side of the protrusion 51b away from the middle region Z, and the force-applying direction of the force-applying member 6 is parallel to the opening direction of the limiting groove 52b.

[0064] This design facilitates the assembly and disassembly of the first part 11 and the second part 12. When installing the first part 11 and the second part 12, the force-applying component 6 applies force in a direction parallel to the opening direction of the limiting groove 52b. The force-applying component 6 provides an auxiliary thrust during connection, helping the protrusion 51b to more easily align and enter the limiting groove 52b. This not only makes the installation process of the first part 11 and the second part 12 smoother and improves installation efficiency, but also, during disassembly, the force-applying component 6 provides a force opposite to the installation direction, making it easier for the protrusion 51b to disengage from the limiting groove 52b. The force-applying component 6 helps the protrusion 51b overcome the friction or clamping force between the protrusion 51b and the sidewall of the limiting groove 52b, making the disassembly of the first part 11 and the second part 12 easier and more convenient.

[0065] Furthermore, after the force-applying component 6 helps the protrusion 51b accurately enter the limiting groove 52b during installation, it can continue to apply force to the first part 11 after the first part 11 and the second part 12 are connected, ensuring a tight fit between the protrusion 51b and the limiting groove 52b. This tight fit reduces the risk of the connection between the first part 11 and the second part 12 becoming loose due to external impact or vibration, thus improving the stability and reliability of the entire temperature and humidity sensor 100.

[0066] In some embodiments of this application, reference continues to be made to... Figures 1 to 6 The temperature and humidity sensor 100 also includes a magnetic element 7, which is disposed in the accommodating cavity A.

[0067] By incorporating a magnetic component 7 within the receiving cavity A—specifically, on the wall opposite to the receiving cavity R—the temperature and humidity sensor 100 can be easily magnetically attached to metal components in the external environment without the need for additional tools, resulting in efficient and flexible installation. This design is suitable for various metal surfaces, allows for quick position adjustment as needed, facilitates temporary or long-term monitoring, and provides stable installation, reducing the impact of vibration on measurements and improving data accuracy. Furthermore, it is easy to maintain and clean, enhancing the safety and reliability of the temperature and humidity sensor 100.

[0068] In addition, the temperature and humidity sensor 100 may also include components such as a controller and a connector. The connector is used to connect the conductive part and the display panel 21, and the controller is used to process the electrical signal of the probe 3 and display the temperature and humidity values ​​on the display panel 21.

[0069] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A temperature and humidity sensor, characterized in that, The temperature and humidity sensor includes: The housing has a non-communicating accommodating cavity and a receiving cavity; the housing has a detection hole that communicates with the accommodating cavity; the housing has a light-transmitting area. A display module is disposed within the receiving cavity. The display module includes a display panel and a backlight panel. The backlight panel is disposed on the non-display side of the display panel, and the display side of the display panel is disposed corresponding to the light-transmitting area. A probe is disposed within the accommodating cavity, with one end of the probe extending toward the detection hole and the other end electrically connected to the display panel.

2. The temperature and humidity sensor according to claim 1, characterized in that, The housing includes a first part and a second part connected to each other. The first part has the receiving cavity and the detection hole is formed on the first part. The second part has the receiving cavity.

3. The temperature and humidity sensor according to claim 2, characterized in that, The temperature and humidity sensor also includes: A first conductive part is disposed in the first part, and the first conductive part is electrically connected to the probe; A second conductive part is disposed in the second part; one end of the second conductive part is in contact with the first conductive part so that the first conductive part and the second conductive part are electrically connected, and the other end of the second conductive part is electrically connected to the display panel.

4. The temperature and humidity sensor according to claim 3, characterized in that, One of the first conductive part and the second conductive part is a spring-loaded terminal block, and the other is a copper sheet contact terminal block.

5. The temperature and humidity sensor according to claim 2, characterized in that, The first part has a detection area and an installation area. A first groove is formed on the first part, the first groove is located in the detection area, and the detection hole is formed on the bottom wall of the first groove.

6. The temperature and humidity sensor according to claim 2, characterized in that, The first part and the second part are detachably connected.

7. The temperature and humidity sensor according to claim 6, characterized in that, The temperature and humidity sensor also includes a limiting part and a mating part that cooperate with each other. The limiting part is disposed on one of the first part and the second part, and the mating part is disposed on the other part.

8. The temperature and humidity sensor according to claim 7, characterized in that, The limiting part includes a buckle, and the mating part includes a groove.

9. The temperature and humidity sensor according to claim 7, characterized in that, The first part has a middle region and an edge region surrounding the middle region, the limiting part includes a protrusion disposed in the edge region; the mating part includes a limiting groove formed on the second part; The temperature and humidity sensor also includes a force-applying component disposed in the edge region. The force-applying component is disposed on the side of the protrusion away from the middle region, and the force-applying direction of the force-applying component is parallel to the opening direction of the limiting groove.

10. The temperature and humidity sensor according to any one of claims 1 to 9, characterized in that, The temperature and humidity sensor also includes a magnetic component, which is disposed within the accommodating cavity.

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