High-precision reed pipe temperature sensor assembly

Abstract

The utility model belongs to the technical field of temperature sensors, and particularly relates to a high-precision reed pipe temperature sensor assembly, which comprises a shell and a sensing assembly arranged in the shell, the sensing assembly comprises a reed pipe fixed in the shell, a temperature sensing magnetic plate arranged on the outer side of the reed pipe, a sealing mechanism arranged at the end of the reed pipe and an inflation mechanism arranged on the sealing mechanism. The sealing mechanism comprises a positioning bolt fixed to the end of the shell and a spring connected to the inner side end of the positioning bolt. Through the sensing assembly, the lantern ring can be arranged at the outer side end of the positioning bolt in a sleeving mode, inert gas is filled into the through hole through inert gas supply equipment connected with the gas filling pipe, then the gas flows through the gas inlet hole to eject the sealing ring and the sealing plate open, the inert gas continuously enters the reed switch, gas supply is cut off after gas filling is completed, and the sealing ring and the sealing plate are sealed. And at the moment, the sealing plate and the sealing ring are reset under the action of the spring, sealing is completed, inflation is convenient, and the sealing effect is good.

Description

Technical Field

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

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety of types.

[0003] The reed switch in existing temperature sensor assemblies is cumbersome to fill with inert gas and is prone to leakage during subsequent use, affecting the normal operation of the reed switch. In addition, the response rate of the reed switch using conventional temperature-sensitive magnetic elements is low and the accuracy needs to be further improved. Therefore, we propose a high-precision reed switch temperature sensor assembly. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A high-precision reed switch temperature sensor assembly includes: a housing and a sensing component disposed within the housing; the sensing component includes a reed switch fixed within the housing, a temperature-sensing magnetic plate disposed outside the reed switch, a sealing mechanism disposed at the end of the reed switch, and an inflation mechanism disposed on the sealing mechanism; the sealing mechanism includes a positioning pin fixed to the end of the housing, a spring connected to the inner end of the positioning pin, a sealing plate connected to the end of the spring, a sealing ring fixed to the middle of the sealing plate, and a sealing groove correspondingly formed in the middle of the positioning pin; a spring sheet fixed to the middle of the sealing plate is connected inside the reed switch.

[0007] In a preferred embodiment, the present invention can be further configured such that the inflation mechanism includes an air inlet hole in the middle of the positioning bolt, a collar fitted on the outer end of the positioning bolt, a through hole in the collar, and an inflation tube connected to the collar.

[0008] In a preferred embodiment, the present invention can be further configured such that the inner side of the collar and the outer end of the positioning bolt are adapted tapered structures.

[0009] In a preferred embodiment, the present invention can be further configured such that a retaining plate for engaging the reed switch is fixed at the bottom of the housing.

[0010] In a preferred embodiment, the present invention can be further configured such that: a fixing seat is fixed to the top of the housing, and a fixing groove is provided in the fixing seat for the temperature-sensing magnetic plate to pass through.

[0011] In a preferred embodiment, the present invention can be further configured such that a thickened pad is provided on the outer side of the sealing ring.

[0012] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0013] 1. This utility model uses a sensing component to allow a collar to be placed on the outer end of the positioning bolt. An inert gas supply device connected to an inflation pipe fills the through hole with inert gas. The gas then flows through the air inlet to push open the sealing ring and sealing plate. The inert gas continuously enters the reed switch. When inflation is complete, the gas supply is cut off. At this time, the sealing plate and sealing ring reset under the action of the spring, completing the seal. This solution is convenient to inflate and has a good sealing effect.

[0014] 2. This utility model utilizes a sensing component, in which an adjustable temperature-sensing magnetic plate, which can be positioned within a fixed base, surrounds the outside of a reed switch. This allows the temperature-sensing magnetic plate to adjust its own magnetism according to changes in external temperature, thus affecting the on / off state of the reed switch. The use of a wrap-around temperature-sensing magnetic plate ensures high efficiency and accuracy in influencing the reed switch, thereby improving the practicality of the sensor. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the high-precision reed switch temperature sensor assembly of this utility model.

[0016] Figure 2 This is an enlarged view of section A of the high-precision reed switch temperature sensor assembly of this utility model;

[0017] Figure 3 This is a side sectional view of the high-precision reed switch temperature sensor assembly of this utility model.

[0018] Figure label:

[0019] 100. Shell;

[0020] 200. Sensing component; 210. Reed switch; 211. Spring; 212. Clamping plate; 213. Mounting base; 214. Mounting groove; 220. Temperature-sensing magnetic plate; 230. Positioning bolt; 240. Spring; 250. Sealing plate; 260. Sealing ring; 261. Thickened gasket; 270. Sealing groove;

[0021] 310. Air inlet; 320. Collar; 330. Through hole; 340. Inflation tube; Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of a high-precision reed switch temperature sensor assembly provided by this utility model.

[0025] Combination Figures 1-3 As shown, the present invention provides a high-precision reed switch temperature sensor assembly, comprising: a housing 100 and a sensing component 200 disposed within the housing 100.

[0026] The sensing component 200 includes a reed switch 210 fixed inside the housing 100, a temperature-sensitive magnetic plate 220 disposed outside the reed switch 210, a sealing mechanism disposed at the end of the reed switch 210, and an inflation mechanism disposed on the sealing mechanism. The sealing mechanism includes a positioning bolt 230 fixed to the end of the housing 100, a spring 240 connected to the inner end of the positioning bolt 230, a sealing plate 250 connected to the end of the spring 240, a sealing ring 260 fixed to the middle of the sealing plate 250, and a sealing ring 260 correspondingly formed in the housing 100. The positioning bolt 230 has a sealing groove 270 in the middle; the reed switch 210 is connected to a spring 211 fixed in the middle of the sealing plate 250. Through the sensing assembly 200, an adjustable temperature-sensing magnetic plate 220 can be arranged around the outside of the reed switch 210 within the fixing seat 213. This allows the temperature-sensing magnetic plate 220 to adjust its own magnetism according to changes in external temperature, thus affecting the on / off state of the reed switch 210. The use of a wrap-around temperature-sensing magnetic plate 220 makes the reed switch 210 highly efficient and accurate, thereby improving the practicality of the sensor.

[0027] It should be noted that the temperature-sensitive magnetic plate 220 uses permanent magnets or ferrite materials. Its magnetic properties, mainly coercivity or Curie point, change significantly with temperature. Magnets with a specific "Curie point" can also be used. Below the Curie point temperature, the magnet maintains strong magnetism; when the temperature reaches or exceeds its Curie point, the magnet will suddenly lose magnetism and demagnetize. Ferrite materials with permeability that change significantly with temperature can also be used.

[0028] Specifically, the inflation mechanism includes an air inlet 310 located in the middle of the positioning bolt 230, a collar 320 fitted onto the outer end of the positioning bolt 230, a through hole 330 located within the collar 320, and an inflation pipe 340 connected to the collar 320. Through the sensing component 200, the collar 320 can be fitted onto the outer end of the positioning bolt 230. An inert gas supply device connected to the inflation pipe 340 injects inert gas into the through hole 330. The gas then flows through the air inlet 310, pushing open the sealing ring 260 and the sealing plate 250. The inert gas continuously enters the reed switch 210. When inflation is complete, the gas supply is disconnected. At this time, the sealing plate 250 and the sealing ring 260 reset under the action of the spring 240, completing the seal. This design provides convenient inflation and a good sealing effect.

[0029] The inflation pipe 340 is connected to an inert gas storage device, which allows inert gas to be filled into the air inlet 310. The air inlet 310 is connected to the sealing groove 270 to allow inert gas to enter.

[0030] Furthermore, the inner side of the collar 320 and the outer end of the positioning bolt 230 are adapted to a conical structure, which allows the collar 320 to be easily fitted onto the outer end of the positioning bolt 230. After tightening, the positioning can be sealed without positioning, which greatly improves the inflation efficiency.

[0031] Furthermore, the bottom of the housing 100 is fixed with a clamping plate 212 for engaging the reed switch 210, which facilitates the fixing of the reed switch 210. The clamping plate 212 can be made of a material with certain deformation and strength, such as hard rubber, to facilitate fixing and protection.

[0032] On the other hand, a fixing seat 213 is fixed on the top of the housing 100, and a fixing groove 214 is provided in the fixing seat 213 for the temperature sensing magnetic plate 220 to pass through, which can adjust the angle of the temperature sensing magnetic plate 220 around the reed switch 210 as needed, and facilitates the installation and replacement of the temperature sensing magnetic plate 220.

[0033] Furthermore, a thickening pad 261 is provided on the outer side of the sealing ring 260. The thickening pad 261 can squeeze the sealing ring 260 after entering the sealing groove 270, thereby making the sealing ring 260 tightly wrap the spring sheet 211 and further improving the sealing effect.

[0034] The working principle and usage process of this utility model are as follows: First, the positioning bolt 230 is fixed to the end of the reed switch 210. Then, the sealing plate 250 and the spring 211 are inserted from the inside of the reed switch 210, with the spring 211 extending outward through the positioning bolt 230. Then, both ends of the reed switch 210 are sealed. During inflation, the collar 320 is placed on the outer end of the positioning bolt 230. Inert gas is injected into the through hole 330 by the inert gas supply device connected to the inflation pipe 340. Then, the gas flows through the air inlet 310, pushing open the sealing ring 260 and the sealing plate 250, allowing the inert gas to continuously... Entering the reed switch 210, after inflation is complete, the air supply is disconnected. At this time, the sealing plate 250 and sealing ring 260 are reset under the action of the spring 240. Then, the reed switch 210 is snapped into the clamping plate 212, and the temperature-sensitive magnetic plate 220 is fixed to the fixing base 213. Finally, the housing 100 is assembled so that the temperature-sensitive magnetic plate 220 is arranged around the outside of the reed switch 210. When the external temperature changes, the magnetism of the temperature-sensitive magnetic plate 220 changes accordingly, so that the reed 211 inside the reed switch 210 is magnetized or demagnetized according to the external magnetic field, thereby realizing the on / off state.

[0035] The terms "fixed," "installed," "connected," "set up," "open," "equipped with," "embedded," and "assembled" used in this manual to describe the position or relationship of components all refer to conventional physical connections or spatial configurations that can be understood and implemented by those skilled in the art based on the function of the relevant components, the context, and common knowledge. These relationships encompass, but are not limited to, specific forms such as welding, bonding, threaded fastening, snap-fit, interference fit, plug-in, sliding fit, hinge, integral molding, adjacent arrangement, and opening or slot accommodating. Their purpose is to clearly describe the relative positions, mating methods, and functional implementation paths between components, rather than limiting a single specific structural detail. To ensure a smooth and concise reading experience and ease of understanding, no separate explanation is provided after each term.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-precision reed switch temperature sensor assembly, characterized in that, include: A housing (100) and a sensing component (200) disposed within the housing (100); The sensing assembly (200) includes a reed switch (210) fixed inside the housing (100), a temperature-sensitive magnetic plate (220) disposed outside the reed switch (210), a sealing mechanism disposed at the end of the reed switch (210), and an inflation mechanism disposed on the sealing mechanism. The sealing mechanism includes a positioning bolt (230) fixed to the end of the housing (100), a spring (240) connected to the inner end of the positioning bolt (230), a sealing plate (250) connected to the end of the spring (240), a sealing ring (260) fixed to the middle of the sealing plate (250), and a sealing groove (270) correspondingly opened in the middle of the positioning bolt (230); The reed switch (210) is internally connected to a spring piece (211) fixed in the middle of the sealing plate (250).

2. The high-precision reed switch temperature sensor assembly according to claim 1, characterized in that, The inflation mechanism includes an air inlet (310) in the middle of the positioning bolt (230), a collar (320) fitted on the outer end of the positioning bolt (230), a through hole (330) in the collar (320), and an inflation tube (340) connected to the collar (320).

3. The high-precision reed switch temperature sensor assembly according to claim 2, characterized in that, The inner side of the collar (320) and the outer end of the positioning bolt (230) are fitted with a tapered structure.

4. The high-precision reed switch temperature sensor assembly according to claim 1, characterized in that, The bottom of the housing (100) is fixed with a clamping plate (212) for engaging the reed switch (210).

5. A high-precision reed switch temperature sensor assembly according to claim 1, characterized in that, The top of the housing (100) is fixed with a fixing seat (213), and the fixing seat (213) has a fixing groove (214) for the temperature sensing magnetic plate (220) to pass through.

6. The high-precision reed switch temperature sensor assembly according to claim 1, characterized in that, A thickened pad (261) is provided on the outer side of the sealing ring (260).

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