Temperature sensor of a waterproof encapsulation structure

Abstract

The utility model discloses a temperature sensor of waterproof packaging structure, the utility model relates to sensor packaging technical field, including sensor shell, sealing seat and temperature sensing element, the sensor shell is fixedly installed with drive arrangement in, the one end of sensor shell is provided with the mounting groove, the sealing seat is provided with deformation cavity in, the sealing seat is installed in the mounting groove, and the even circumferential compression force is provided for temperature sensing element through drive arrangement and pulls the elastic sealing seat, and the axial displacement is converted into the radial clamping movement of compression block, the mechanical structure avoids the local stress that traditional thread locking can produce to make sealing pad layer can more effectively fill the gap to form stable sealing interface. The whole structure action is direct, reliable, and the sensor is convenient to the dismounting operation and maintenance.

Description

Technical Field

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

[0002] A temperature sensor is a sensing element that converts the physical quantity of temperature into a processable electrical signal. Its core component typically needs to be in direct and close contact with the measured medium or environment to achieve accurate temperature measurement. In practical applications, especially in industrial process control, outdoor equipment, or fluid pipeline monitoring, ensuring reliable sealing of the sensor element to prevent moisture and corrosive media from intruding and affecting its performance and lifespan is a critical technical issue.

[0003] Common sealing methods include threaded tightening, adhesive bonding, or interference fit. These methods may have problems such as excessive local stress leading to component damage, aging and failure of sealing materials due to uneven stress, or inconvenience in disassembly when maintenance is required.

[0004] To address the aforementioned issues, a sensor that allows for easy disassembly and maintenance and provides uniform sealing was designed to solve the technical problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a temperature sensor with a waterproof encapsulation structure, thus solving the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof encapsulated temperature sensor, comprising a sensor housing, a sealing seat, and a temperature sensing element. A driving device is fixedly installed inside the sensor housing. One end of the sensor housing has an installation groove. A deformation cavity is formed inside the sealing seat, which is installed within the installation groove. The telescopic end of the driving device passes through the sensor housing and the sealing seat and is connected to a transmission rod in the deformation cavity. A pressure head is fixedly installed at the end of the transmission rod. A pair of clamping blocks are connected outward from the sealing seat. The temperature sensing element is disposed between the clamping blocks and is encapsulated by the clamping blocks.

[0007] Preferably, the pressure head is fixedly connected to the inner wall of the sealing seat.

[0008] Preferably, the driving device is connected to a driving source.

[0009] Preferably, the front end of the clamping block is provided with an arc-shaped structure that cooperates with the temperature sensing element, and a sealing gasket is installed thereon.

[0010] Preferably, the clamping block forms a certain angle with the horizontal line when it is under normal stress.

[0011] Preferably, the outer wall surface of the sealing gasket is provided with anti-slip texture, and the sealing gasket is made of wear-resistant elastic rubber structure.

[0012] Beneficial effects This invention provides a temperature sensor with a waterproof encapsulation structure. The sensor uses a drive device to pull the elastic sealing seat, converting axial displacement into radial clamping motion of the clamping block, providing a uniform circumferential clamping force to the temperature sensing element. This mechanical structure avoids the localized stress that may occur with traditional threaded locking and allows the sealing gasket to more effectively fill gaps, thus forming a stable sealing interface. The entire structure operates directly and reliably, facilitating sensor assembly, disassembly, and maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the temperature sensor with the waterproof encapsulation structure described in this utility model.

[0014] In the diagram: 1. Sensor housing; 2. Drive unit; 3. Transmission rod; 4. Pressure head; 5. Sealing seat; 6. Clamping block; 7. Deformation cavity; 8. Sealing gasket; 9. Temperature sensing element; 10. Mounting groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1 This utility model provides a technical solution: a temperature sensor with a waterproof encapsulation structure, including a sensor housing 1, a sealing seat 5, and a temperature sensing element 9. A driving device 2 is fixedly installed inside the sensor housing 1. A mounting groove 10 is opened at one end of the sensor housing 1. A deformation cavity 7 is opened inside the sealing seat 5. The sealing seat 5 is installed in the mounting groove 10. The telescopic end of the driving device 2 passes through the sensor housing 1 and the sealing seat 5 and is connected to a transmission rod 3 into the deformation cavity 7. A pressure head 4 is fixedly installed at the end of the transmission rod 3. A pair of clamping blocks 6 are connected to the sealing seat 5 outward. The temperature sensing element 9 is disposed between the clamping blocks 6 and is clamped and encapsulated by the clamping blocks 6.

[0017] In this embodiment, the pressure head 4 is further configured to be fixedly connected to the inner wall of the sealing seat 5.

[0018] In this embodiment, the driving device 2 is further configured to be connected to a driving source.

[0019] In this embodiment, the front end of the clamping block 6 is provided with an arc-shaped structure that cooperates with the temperature sensing element 9, and a sealing gasket layer 8 is installed thereon.

[0020] In this embodiment, the clamping block 6 is set at a certain angle to the horizontal line when it is under normal stress.

[0021] In this embodiment, the outer wall surface of the sealing gasket layer 8 is provided with anti-slip texture, and the sealing gasket layer 8 adopts a wear-resistant elastic rubber structure.

[0022] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0023] Example: This example provides a temperature sensor with a waterproof encapsulation structure. It mainly consists of a sensor housing 1, a driving device 2, a transmission rod 3, a pressure head 4, a sealing seat 5, a clamping block 6, a sealing gasket layer 8, and a temperature sensing element 9.

[0024] The sensor housing 1 is typically made of robust and corrosion-resistant materials such as stainless steel or alumina ceramic. An internal cavity is formed to accommodate the drive unit 2. The drive unit 2 can be a miniature hydraulic cylinder or a compact electric actuator, which is fixed to the inner wall of the sensor housing 1 by screws or an interference fit. An external drive source (e.g., an external hydraulic station or DC power supply, not shown in the figure) provides power to the drive unit 2.

[0025] At one end of the sensor housing 1, an annular mounting groove 10 is machined. A sealing seat 5 made of elastic material is interference-fitted into this mounting groove 10. The interior of the sealing seat 5 has an annular deformable cavity 7 machined in.

[0026] The telescopic rod of the drive device 2, serving as the telescopic end, passes sequentially through the through holes at the bottom of the sensor housing 1 and the bottom of the sealing seat 5, extending into the aforementioned deformation cavity 7. One end of a transmission rod 3 is fixed to the end of the telescopic rod via a threaded connection or welding. The other end of the transmission rod 3 is fixedly connected to a pressure head 4. In this embodiment, the outer edge of the pressure head 4 is fixedly connected to the inner wall of the sealing seat 5 via welding or integral molding.

[0027] A pair of clamping blocks 6 are symmetrically arranged on the outer periphery of the sealing seat 5 and are connected to the outer wall of the sealing seat 5 by integral processing or welding. In the natural state (i.e., when the driving device 2 does not apply force), the opening of this pair of clamping blocks 6 is funnel-shaped, and its center line forms an angle of about 5° to 15° with the horizontal line. This structure facilitates the insertion of the temperature sensing element 9.

[0028] A sealing gasket layer 8 is firmly attached to the inner wall of the clamping block 6 using an adhesive. This sealing gasket layer 8 is preferably made of a rubber material with good elasticity, temperature resistance, and wear resistance, such as fluororubber or silicone rubber. To enhance the reliability of the seal, fine anti-slip textures or serrated grooves can be machined on the surface of the sealing gasket layer 8 that contacts the temperature sensing element 9.

[0029] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A temperature sensor with a waterproof encapsulation structure, comprising a sensor housing (1), a sealing base (5), and a temperature sensing element (9), characterized in that, A drive device (2) is fixedly installed inside the sensor housing (1). A mounting groove (10) is provided at one end of the sensor housing (1). A deformation cavity (7) is provided inside the sealing seat (5). The sealing seat (5) is installed in the mounting groove (10). The telescopic end of the drive device (2) passes through the sensor housing (1) and the sealing seat (5) and is connected to a transmission rod (3) in the deformation cavity (7). A pressure head (4) is fixedly installed at the end of the transmission rod (3). A pair of clamping blocks (6) are connected to the sealing seat (5) outward. The temperature sensing element (9) is disposed between the clamping blocks (6) and is clamped and sealed by the clamping blocks (6).

2. The temperature sensor with a waterproof encapsulation structure according to claim 1, characterized in that... The pressure head (4) is fixedly connected to the inner wall of the sealing seat (5).

3. The temperature sensor with a waterproof encapsulation structure according to claim 1, characterized in that... The driving device (2) is connected to a driving source.

4. The temperature sensor with a waterproof encapsulation structure according to claim 1, characterized in that... The front end of the clamping block (6) is provided with an arc surface structure that cooperates with the temperature sensing element (9), and a sealing gasket (8) is installed.

5. The temperature sensor with a waterproof encapsulation structure according to claim 1, characterized in that... The clamping block (6) is at a certain angle to the horizontal line under normal stress conditions.

6. The temperature sensor with a waterproof encapsulation structure according to claim 4, characterized in that... The outer wall of the sealing gasket (8) is provided with anti-slip texture, and the sealing gasket (8) adopts a wear-resistant elastic rubber structure.

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