Temperature sensor with ground wire device

Abstract

A temperature sensor with a ground wire device relates to the technical field of sensors, and is characterized in that the temperature sensor comprises a thermistor, an epoxy resin layer, a probe, a brass ring, a female end, a cable and a wiring terminal, the thermistor is fixedly arranged on the inner side of the front end part of the epoxy resin layer, the epoxy resin layer is fixedly arranged inside the probe, and the female end is fixedly arranged inside the probe. The brass ring is fixedly arranged outside the probe, the female end is fixedly arranged outside the probe through the locking plate and located on one side of the brass ring, and the cables are fixedly connected between the female end and the wiring terminal and between the tail end of the probe and the wiring terminal. According to the utility model, through the innovative design of the ground wire device, the remarkable beneficial effects are brought in the aspects of enhancing the anti-interference capability, improving the measurement precision and stability, prolonging the service life, facilitating the installation and maintenance, improving the safety and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field, concretely is a temperature sensor with ground wire device. BACKGROUND

[0002] In industrial automation, environmental monitoring, medical devices, food processing and many other fields, temperature sensors play a crucial role as key detection components. These sensors need to accurately measure and transmit temperature data for use by control systems, monitoring equipment or data analysis software. However, in existing technology, temperature sensors often face many challenges in complex and variable working environments.

[0003] Firstly, electromagnetic interference is a common problem. In environments with dense electrical and electronic equipment, such as factory production lines, data centers or near high-voltage power lines, sensors are highly susceptible to electromagnetic radiation interference, leading to measurement data deviation or instability, affecting the accuracy and reliability of the system.

[0004] Secondly, environmental factors such as humidity, corrosive gases and particulate matter can also damage the sensor. The existing temperature sensor shell material and sealing design may not be sufficient to completely isolate these adverse factors, causing internal components of the sensor to be damaged, thereby shortening the service life of the sensor.

[0005] In addition, the convenience of installation and maintenance is also a problem that needs to be considered in existing technology. In some special or difficult-to-reach application scenarios, the installation and later maintenance of the sensor may require complex operation procedures, increasing the workload and cost of workers. INVENTION CONTENT

[0006] The purpose of the utility model is to provide a temperature sensor with ground wire device, aiming to enhance anti-interference ability, improve measurement accuracy and stability, prolong service life and improve the convenience of installation and maintenance.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A temperature sensor with ground wire device, characterized in that it comprises a thermistor, an epoxy resin layer, a probe, a brass ring, a female end, a cable and a terminal, the thermistor is fixedly arranged on the inner side of the front end of the epoxy resin layer, the epoxy resin layer is fixedly arranged in the interior of the probe, the brass ring is fixedly arranged on the exterior of the probe, the female end is fixedly arranged on the exterior of the probe and located on one side of the brass ring through a locking plate, and the cable is fixedly connected between the female end and the terminal and between the tail end of the probe and the terminal.

[0009] Preferably, an O-ring is fixed outside the probe between the brass ring and the thermistor.

[0010] Preferably, the probe is made of stainless steel and has a bullet shape.

[0011] Preferably, a fixing hole is fixed in the middle of the lock plate, the lock plate is fixed outside the probe through the fixing hole, and the two ends of the lock plate are provided with fixing connection holes.

[0012] Preferably, the lock plate is detachably connected to the female end in a plug-in manner.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] Enhanced anti-interference capability: by introducing a brass ring as a grounding device, a low-impedance grounding path is formed with the probe shell, effectively reducing the influence of external electromagnetic interference on the temperature sensor signal, improving the measurement accuracy and stability.

[0015] Improved measurement accuracy and stability: the thermistor as the core sensitive element has its measurement accuracy protected and supported by the epoxy resin layer, ensuring the accuracy of the measurement. At the same time, the sealing effect of the O-ring prevents external impurities from entering, further ensuring the measurement accuracy.

[0016] Prolonged service life: the probe made of stainless steel and the internal epoxy resin layer provide excellent corrosion resistance and structural strength, enabling stable operation in harsh environments and significantly prolonging the service life of the sensor.

[0017] Convenient installation and maintenance: the bullet-shaped probe design reduces insertion resistance, making installation and measurement easier. The detachable connection design of the lock plate and the female end makes it easier and faster to replace or maintain the cable and female end, improving the maintainability and flexibility of the equipment.

[0018] Improved safety: the design of the grounding device not only improves the anti-interference capability, but also enhances the safety of the equipment, effectively guiding static electricity and electromagnetic interference to the ground, reducing potential safety hazards.

[0019] In summary, the patent brings significant benefits in terms of enhanced anti-interference capability, improved measurement accuracy and stability, prolonged service life, convenient installation and maintenance, and improved safety through innovative grounding device design. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This utility model Figure 1 A partially enlarged structural diagram.

[0023] Figure 3 This is a schematic diagram of the probe and locking plate of this utility model.

[0024] Figure 4 This utility model Figure 3 A side view structural diagram.

[0025] Figure 5 This is a schematic diagram of the female end structure of this utility model.

[0026] Figure label annotations: 1-Thermistor, 2-Epoxy resin layer, 3-Probe, 4-Brass ring, 5-Female end, 6-Cable, 7-Terminal, 8-Locking plate, 9-O-ring, 81-Fixing hole, 82-Fixing connection hole. Detailed Implementation

[0027] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings and description, similar or identical parts are referred to by the same reference numerals. Furthermore, in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of the utility model. Any obvious modifications or alterations made to this utility model do not depart from its spirit and scope.

[0028] like Figures 1-5 As shown,

[0029] A temperature sensor with a grounding device includes a thermistor 1, an epoxy resin layer 2, a probe 3, a brass ring 4, a female terminal 5, a cable 6, and a terminal block 7. The thermistor 1 is fixedly disposed inside the front end of the epoxy resin layer 2, the epoxy resin layer 2 is fixedly disposed inside the probe 3, the brass ring 4 is fixedly disposed outside the probe 3, the female terminal 5 is fixedly disposed outside the probe 3 and located on one side of the brass ring 4 by a locking piece 8, and the cable 6 is fixedly connected between the female terminal 5 and the terminal block 7 and between the tail end of the probe 3 and the terminal block 7.

[0030] The outer side of the probe 3 is fixedly provided with an O-ring 9 located between the brass ring 4 and the thermistor 1. The probe 3 is made of stainless steel and has a bullet shape.

[0031] The middle position of the locking piece 8 is fixedly provided with a fixing hole 81, and the locking piece 8 is fixedly arranged on the outer side of the probe 3 through the fixing hole 81. The two ends of the locking piece 8 are provided with fixed connection holes 82. The locking piece 8 is detachably connected to the female end 5 in a plug-in manner.

[0032] The utility model discloses a temperature sensor adds ground device, can strengthen the anti -interference, improves the life.

[0033] Thermistor 1: as the core sensitive element of the temperature sensor, it changes its resistance value according to the change of the environment temperature, thereby realizing the measurement of the temperature.

[0034] Epoxy resin layer 2: wrapped around the thermistor 1, plays the role of insulation, protection and fixation of the thermistor, ensures the measurement accuracy and stability.

[0035] Probe 3 (stainless steel material, bullet shape): not only as the shell of the whole sensor, but also provides good corrosion resistance and structural strength through its stainless steel material. The bullet-shaped design may help to reduce the resistance during insertion, facilitate installation and measurement.

[0036] Brass ring 4: arranged on the outside of the probe 3, as part of the ground device, forms an electrical connection with the probe shell, provides a low-impedance grounding path, helps to reduce the influence of external electromagnetic interference on the sensor signal.

[0037] Female end 5 and cable 6: the female end 5 is fixed on the probe 3 through the locking piece 8, and the cable 6 connects the female end 5 and the terminal 7, as well as the probe tail end and the terminal 7, responsible for transmitting the temperature signal measured by the thermistor to the external equipment.

[0038] Terminal 7: provides a connection point with the external circuit, facilitates the output and processing of the temperature signal, and also provides a connection point for the ground wire.

[0039] O-ring 9: located between the brass ring 4 and the thermistor 1, can play a sealing role, prevent moisture, dust and other impurities in the external environment from entering the inside of the sensor, affect the measurement accuracy and service life.

[0040] The utility model discloses a thermistor 1 senses environmental temperature change, produces corresponding resistance value change, this change is transmitted to external processing equipment through cable line 6, and is converted into readable temperature value. Through the direct connection of brass ring 4 and probe 3 shell, a low impedance ground channel is formed. This design helps to guide static electricity, electromagnetic interference etc. on the sensor shell to the ground, reduces its interference to temperature measurement signal, improves measurement accuracy and stability. The probe 3 of stainless steel material and the epoxy resin layer 2 inside jointly provide good structural strength and protection performance, ensure that the sensor still can work stably under the harsh environment, prolongs the service life. The detachable connection design of lock sheet 8 and female end 5 makes the replacement or maintenance of cable line 6 and female end 5 become convenient and fast, improves the maintainability and flexibility of equipment.

[0041] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A temperature sensor having a ground device, characterized by, It includes a thermistor (1), an epoxy layer (2), a probe (3), a brass ring (4), a female end (5), a cable (6) and a terminal (7), the thermistor (1) is fixedly arranged in the front end of the epoxy layer (2), the epoxy layer (2) is fixedly arranged in the probe (3), the brass ring (4) is fixedly arranged outside the probe (3), the female end (5) is fixedly arranged outside the probe (3) and on one side of the brass ring (4) through a locking sheet (8), and the cable (6) is fixedly connected between the female end (5) and the terminal (7) and between the tail end of the probe (3) and the terminal (7).

2. The temperature sensor with ground device of claim 1, wherein, The outside of the probe (3) is fixedly provided with an O-ring (9), and the O-ring (9) is located between the brass ring (4) and the thermistor (1).

3. The temperature sensor with ground device of claim 1, wherein, The probe (3) is made of stainless steel and has a bullet shape.

4. The temperature sensor with ground device of claim 1, wherein, The middle position of the locking sheet (8) is fixedly provided with a fixing hole (81), the locking sheet (8) is fixedly arranged outside the probe (3) through the fixing hole (81), and both ends of the locking sheet (8) are provided with fixed connection holes (82).

5. A temperature sensor with ground according to any one of claims 1-4, characterized in that, The locking sheet (8) is detachably connected to the female end (5) in a plug-in mode.

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