A sealed dustproof structure for a temperature sensor housing

Abstract

This utility model belongs to the field of temperature sensor protection, and in particular, it is a sealed and dustproof structure for a temperature sensor housing. Addressing the problem that dust easily enters the connection point between the connecting wire and the housing during long-term use of existing temperature sensors, and that dust accumulation affects the measurement accuracy of the internal temperature sensing element, and can even lead to damage to the element, the following solution is proposed. It includes a housing and a connecting wire. The housing has an inner core wound with fine platinum wire. The connecting wire connects to the internal temperature sensing element and extends outwards. For sealing and dustproofing, the rubber inner ring tightly fits the gap between the connecting wire and the housing, effectively preventing dust and other impurities from entering the housing, protecting the internal temperature sensing element from dust, ensuring the temperature sensor can accurately detect temperature signals, and improving the reliability of temperature measurement. At the same time, it facilitates disassembly and assembly when replacing or repairing the rubber inner ring.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor protection technology, and in particular to a sealed and dustproof structure for a temperature sensor housing. Background Technology

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. It has a wide range of applications in many fields such as industry, agriculture, medicine, and home appliances. It measures the thermal state of an object and converts the physical quantity of temperature into electrical signals, digital signals, and other forms that are easy to process and transmit, thereby realizing the monitoring, control, and regulation of temperature.

[0003] During long-term use, dust can easily enter the connection point between the temperature sensor's wiring and the housing. Dust accumulation can affect the measurement accuracy of the internal temperature-sensing element and even damage it. Therefore, a stable and reliable sealed dustproof structure is required. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where dust easily enters the connection between the connecting wire and the housing of a temperature sensor during long-term use. This dust accumulation can affect the measurement accuracy of the internal temperature sensing element and even lead to damage to the element. Therefore, this invention proposes a sealed and dustproof structure for the housing of a temperature sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealed and dustproof structure for a temperature sensor housing includes an outer shell and a connecting wire. The inner core of the outer shell is provided with a fine platinum wire wound inside. The connecting wire is connected to a temperature sensing element inside the outer shell and extends outward. A dust sealing mechanism for sealing and preventing dust from the temperature sensor is provided at the connection between the outer shell and the connecting wire.

[0007] In one possible design, the dust sealing mechanism includes a sleeve, a first threaded groove, a second threaded groove, two plates, two fixing posts, two threaded holes, and an inner ring. The second threaded groove is located on the inner wall of the sleeve, and the first threaded groove is located on the outer side of the outer shell and fits into the second threaded groove. The sleeve is threadedly connected to the outer shell through the first and second threaded grooves. The inner ring is fixedly located on the inner wall of the sleeve to seal the gap between the connecting line and the outer shell for dust prevention. The inner ring is made of rubber. One side of each of the two plates is fixedly connected to both sides of one end of the same sleeve. The two threaded holes are located on the two plates and fit into the two fixing posts. One end of each fixing post is threaded through the two threaded holes and is tightly attached to both sides of the same outer shell. The other end of each fixing post is fixedly connected to a rotating handle for easy rotation.

[0008] In one possible design, the outer side of the outer shell is provided with an annular groove to facilitate the stable installation of the sleeve, and one end of each of the two fixing posts extends into the same annular groove and is in close contact with the inner wall of the annular groove.

[0009] In one possible design, one end of each of the two fixed columns is fixedly connected to an anti-slip pad to increase friction and ensure the stability of the sleeve. Both anti-slip pads are in close contact with the inner wall of the same annular groove, and both anti-slip pads are made of rubber.

[0010] In one possible design, the outer side of the sleeve is provided with four grooves to facilitate holding and rotating the sleeve.

[0011] In one possible design, the inner walls of the four grooves are provided with anti-slip textures to increase friction.

[0012] In one possible design, the inner wall corner of the connection between the housing and the connecting wire is set as an arc-shaped edge to reduce friction damage between the connecting wire and the corner.

[0013] In this application, the sealing and dustproof structure of the temperature sensor housing mainly relies on the coordinated cooperation of various components to achieve the sealing and dustproof function during operation. The sleeve is put on the outer shell. Since the second threaded groove on the inner wall of the sleeve fits into the first threaded groove on the outer side of the outer shell, the sleeve is rotated to achieve a threaded connection with the outer shell. The rubber inner ring fixedly installed on the inner wall of the sleeve will fit tightly against the gap between the connecting line and the outer shell. By utilizing the elasticity and sealing properties of the rubber, dust and other impurities are effectively prevented from entering the interior of the outer shell from the gap.

[0014] After the sleeve is threaded to the outer shell, one end of each of the two fixing posts is threaded through the threaded holes on the two plates, and the anti-slip pad at one end of the fixing post extends into the annular groove on the outer side of the outer shell, where it is in close contact with the inner wall of the annular groove. By rotating the rotating handle at the other end of the fixing post, the position of the fixing post is adjusted so that it is in close contact with both sides of the outer shell. At the same time, the anti-slip pad increases the friction between the fixing post and the annular groove, further stabilizing the sleeve and preventing it from shaking under external force.

[0015] When installing or removing the sleeve, the operator can place their fingers against the groove on the outside of the sleeve. The anti-slip texture on the inner wall of the groove increases the friction between the fingers and the groove, preventing the fingers from slipping when rotating the sleeve and making it easier for the operator to rotate it. In addition, the inner corner of the connection between the outer shell and the connecting wire is set with a rounded edge. When the connecting wire moves at the connection, the rounded edge avoids direct contact between the connecting wire and the sharp corner, reducing friction damage between the connecting wire and the corner and extending the service life of the connecting wire.

[0016] The beneficial effects of this utility model are as follows:

[0017] In terms of sealing and dust prevention, the rubber inner ring can tightly fit the gap between the connecting wire and the outer shell, effectively blocking dust and other impurities from entering the inner shell, protecting the internal temperature sensing element from dust, ensuring that the temperature sensor can accurately detect the temperature signal, improving the reliability of temperature measurement, and facilitating disassembly and assembly when replacing or repairing the rubber inner ring.

[0018] The combination of the fixed column and the ring groove, along with the increased friction from the anti-slip pad, makes the connection between the sleeve and the outer shell more stable. Even when subjected to external forces, the sleeve will not easily shake, ensuring the durability of the sealing and dustproof effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3 This is an exploded view of the dust sealing structure of this utility model;

[0022] Figure 4 This is a partial exploded view of the structure of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Connecting wire; 3. Sleeve sleeve; 4. Groove; 5. Anti-slip texture; 6. Fixing post; 7. Ring groove; 8. Threaded groove one; 9. Arc edge; 10. Plate; 11. Inner ring; 12. Threaded groove two; 13. Anti-slip pad; 14. Threaded hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In one embodiment: Refer to Figures 1-4 A sealed dustproof structure includes a housing 1 and a connecting wire 2. The housing 1 has an inner core wound with fine platinum wire, which serves as the core temperature sensing part of the temperature sensor. The connecting wire 2 is connected to the temperature sensing element inside the housing 1 and extends outward to transmit the temperature signal detected by the temperature sensing element. At the connection between the housing 1 and the connecting wire 2, a dust sealing mechanism is provided to seal the temperature sensor and prevent dust and other impurities from entering the housing 1 and affecting the normal operation of the temperature sensing element.

[0026] The dust sealing mechanism includes a sleeve 3, a first threaded groove 8, a second threaded groove 12, two mounting plates 10, two fixing posts 6, two threaded holes 14, and an inner ring 11. The second threaded groove 12 is formed on the inner wall of the sleeve 3, and the first threaded groove 8 is located on the outer side of the outer shell 1. The first threaded groove 8 and the second threaded groove 12 fit together. During installation, the sleeve 3 is fitted onto the outer shell 1, and the sleeve 3 and the outer shell 1 are threadedly connected by the cooperation of the first threaded groove 8 and the second threaded groove 12. The inner ring 11 is fixedly set on the inner wall of the sleeve 3. Its material is rubber, which has good elasticity and sealing properties, and can protect the connecting wire 2 and the outer shell. The gap between the two plates 10 is sealed to prevent dust from entering the interior of the outer shell 1. One side of each of the two plates 10 is fixedly connected to one side of the same sleeve 3. Two threaded holes 14 are respectively opened on the two plates 10, and the threaded holes 14 are matched with the fixing posts 6. During installation, one end of each fixing post 6 is threaded through the two threaded holes 14, and one end of the fixing post 6 is tightly attached to the two sides of the same outer shell 1, thereby further fixing the sleeve 3 and preventing it from loosening. The other end of each fixing post 6 is fixedly connected to a rotating handle, which can be used to easily rotate the fixing post 6 for easy installation and disassembly.

[0027] This application can be used in the field of temperature sensors, or in other fields applicable to this application.

[0028] In another embodiment: Reference Figures 1-4 A sealed dustproof structure for a temperature sensor housing, comprising:

[0029] An annular groove 7 is provided on the outer side of the outer shell 1. The function of the annular groove 7 is to facilitate the stabilization of the sleeve 3. When the sleeve 3 is threadedly connected to the outer shell 1, one end of each of the two fixing posts 6 extends into the same annular groove 7 and is tightly attached to the inner wall of the annular groove 7. This can increase the stability of the connection between the sleeve 3 and the outer shell 1 and prevent the sleeve 3 from shaking when subjected to external force.

[0030] To further increase the friction between the fixed post 6 and the annular groove 7 and ensure the stability of the sleeve 3, anti-slip pads 13 are fixedly connected to one end of each of the two fixed posts 6. Both anti-slip pads 13 are in close contact with the inner wall of the same annular groove 7. The anti-slip pads 13 are made of rubber, which has good friction properties and can effectively prevent the fixed post 6 from sliding in the annular groove 7, thereby ensuring the stability of the sleeve 3.

[0031] Four grooves 4 are provided on the outer side of the sleeve 3. The purpose of these grooves 4 is to facilitate the holding and rotation of the sleeve 3. When it is necessary to install or remove the sleeve 3, the operator can place his / her fingers in the grooves 4 to rotate the sleeve 3 more conveniently.

[0032] To increase the friction between the fingers and the grooves 4 and prevent the fingers from slipping when rotating the sleeve 3, anti-slip textures 5 are provided on the inner walls of the four grooves 4. The anti-slip textures 5 can increase the contact area and friction between the fingers and the inner walls of the grooves 4, making it easier for the operator to rotate the sleeve 3.

[0033] The inner wall corner of the connection between the outer shell 1 and the connecting line 2 is set as an arc edge 9. This can reduce the friction damage between the connecting line 2 and the corner. When the connecting line 2 moves at the connection, the arc edge 9 can prevent the connecting line 2 from directly contacting the sharp corner, thereby reducing the risk of wear on the connecting line 2 and extending the service life of the connecting line 2.

[0034] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sealed and dustproof structure for a temperature sensor housing, characterized in that, It includes a housing (1) and a connecting wire (2). The housing (1) has an inner core wound with fine platinum wire inside. The connecting wire (2) is connected to the temperature sensing element inside the housing (1) and extends outward. The connection between the housing (1) and the connecting wire (2) is provided with a dust sealing mechanism for sealing and preventing dust from the temperature sensor.

2. The sealing and dustproof structure for a temperature sensor housing according to claim 1, characterized in that, The dust sealing mechanism includes a sleeve (3), a first threaded groove (8), a second threaded groove (12), two plates (10), two fixing posts (6), two threaded holes (14), and an inner ring (11). The second threaded groove (12) is located on the inner wall of the sleeve (3), and the first threaded groove (8) is located on the outer side of the outer shell (1) and fits into the second threaded groove (12). The sleeve (3) is threadedly connected to the outer shell (1) through the first threaded groove (8) and the second threaded groove (12). The inner ring (11) is fixedly located on the inner wall of the sleeve (3) for connecting the wires ( 2) The gap between the inner ring (1) and the outer shell (1) is sealed to prevent dust. The inner ring (11) is made of rubber. One side of the two plates (10) is fixedly connected to one side of the same sleeve (3). The two threaded holes (14) are respectively set on the two plates (10) and respectively fit with the two fixed posts (6). One end of the two fixed posts (6) is threaded through the two threaded holes (14) and respectively tightly attached to the two sides of the same outer shell (1). The other end of the two fixed posts (6) is fixedly connected with a rotating handle for easy rotation.

3. The sealing and dustproof structure for a temperature sensor housing according to claim 2, characterized in that, The outer side of the outer shell (1) is provided with an annular groove (7) to facilitate the stable installation of the sleeve (3). One end of each of the two fixing posts (6) extends into the same annular groove (7) and is in close contact with the inner wall of the annular groove (7).

4. The sealing and dustproof structure for a temperature sensor housing according to claim 2, characterized in that, One end of each of the two fixed columns (6) is fixedly connected to an anti-slip pad (13) to increase friction and ensure the stability of the sleeve (3). Both anti-slip pads (13) are in close contact with the inner wall of the same annular groove (7). Both anti-slip pads (13) are made of rubber.

5. The sealing and dustproof structure for a temperature sensor housing according to claim 2, characterized in that, The outer side of the sleeve (3) is provided with four grooves (4) to facilitate holding and rotating the sleeve (3).

6. The sealing and dustproof structure for a temperature sensor housing according to claim 5, characterized in that, The inner walls of the four grooves (4) are provided with anti-slip textures (5) to increase friction.

7. The sealing and dustproof structure for a temperature sensor housing according to claim 1, characterized in that, The inner wall corner of the connection between the outer shell (1) and the connecting line (2) is provided with an arc-shaped edge (9) to reduce the friction damage between the connecting line (2) and the corner.

Images