temperature transmitter

Abstract

The utility model relates to the technical field of transmitter, concretely is temperature transmitter, including transmitter body, the detection end fixedly connected with sensor of transmitter body, the outside of transmitter body is provided with anti -interference subassembly, the anti -interference subassembly includes the double -layer bellows of setting in the outside of transmitter body, one end of double -layer bellows is fixedly connected with fixed clamp, one end of fixed clamp is fixedly connected with shield cabin, double -layer bellows, fixed clamp and shield cabin combination form the closed cabin body and set up in the outside of sensor. Through the setting of anti -interference subassembly, through double -layer structure enhances the physical protection to sensor, utilizes bellows structure buffering outside vibration simultaneously, reduces mechanical interference and adopts metal material construction electromagnetic shield space simultaneously, further insulates outside electromagnetic radiation, and through the setting of conductive adhesive tape busbar assembly, is used for standardizing conductive adhesive tape trend, further avoids the signal interference caused by the line messy.

Description

Technical Field

[0001] This utility model relates to the field of transmitter technology, and in particular to temperature transmitters. Background Technology

[0002] This temperature transmitter uses imported pressure-sensitive sensors and employs computer-controlled laser trimming for temperature compensation. It features an integrated junction box design, dedicated wiring terminals, and a digital display, making installation, calibration, and maintenance convenient. This series of products is suitable for various enterprises and institutions in the petroleum, water conservancy, chemical, metallurgical, power, light industry, scientific research, and environmental protection sectors. It measures fluid pressure and is applicable to various all-weather environments and corrosive fluids.

[0003] Regarding the aforementioned technologies, the existing temperature transmitters have the following drawbacks: if the transmitter is subjected to severe external electromagnetic interference, the electromagnetic interference will be superimposed on the transmitter's input signal (such as voltage, current, resistance, and other signals transmitted by the sensor), causing the measured value to deviate from the true value. For example, in pressure transmitters, there may be a situation where the displayed pressure deviates significantly from the actual pressure, and the deviation is unstable and irregular.

[0004] Therefore, this utility model provides a temperature transmitter. Summary of the Invention

[0005] The purpose of this application is to provide a temperature transmitter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a temperature transmitter, including a transmitter body, a sensor fixedly connected to the detection end of the transmitter body, and an anti-interference component disposed on the outside of the transmitter body; the anti-interference component includes a double-layer corrugated pipe disposed on the outside of the transmitter body, a fixing clamp fixedly connected to one end of the double-layer corrugated pipe, and a shielding chamber fixedly connected to one end of the fixing clamp; the double-layer corrugated pipe, the fixing clamp, and the shielding chamber are combined to form a closed chamber and fitted onto the outside of the sensor; a conductive rubber strip busbar assembly is disposed on the outside of the shielding chamber.

[0007] Preferably, the conductive adhesive strip busbar assembly includes a first conduit disposed on the outside of the shielding chamber, a second conduit fixedly connected to the outside of the shielding chamber, and a third conduit fixedly connected to the outside of the shielding chamber, with one end of the first conduit, the second conduit, and the third conduit fixedly connected to the same connecting pipe.

[0008] Preferably, a manifold is fixedly connected to the outside of the connecting pipe, and a test terminal is provided on the outside of the manifold.

[0009] Preferably, a plurality of conductive rubber strips are fixedly connected to the outside of the shielding chamber, and the other end of the conductive rubber strips is connected to the outside of the transmitter body.

[0010] Preferably, a lead connector is provided on the outside of the transmitter body, and a magnetic bead is connected in series between the lead connector and the internal circuit.

[0011] Preferably, a conductive adhesive strip is fixedly connected to the output end of the sensor, and a double-lip silicone sealing ring is provided at the position where the sensor connects to the conductive adhesive strip.

[0012] In summary, the technical effects and advantages of this utility model are as follows: In this invention, the anti-interference component enhances the physical protection of the sensor through a double-layer structure, while the corrugated structure buffers external vibrations and reduces mechanical interference. At the same time, the electromagnetic shielding space is constructed with metal material to further isolate external electromagnetic radiation. Furthermore, the conductive strip busbar component is used to standardize the routing of the conductive strip and further avoid signal interference caused by messy wiring. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a first-view axial side view of the structure of this utility model; Figure 2 This is a schematic diagram of the second-view axial side structure of the present invention; Figure 3 This is a schematic diagram of the double-layer corrugated pipe and shielding chamber in this utility model; Figure 4 for Figure 1 A magnified structural diagram at point A.

[0015] In the diagram: 1. Transmitter body; 2. Lead connector; 3. Sensor; 4. Double-layer corrugated pipe; 5. Fixing clamp; 6. Shielding chamber; 7. First conduit; 8. Second conduit; 9. Third conduit; 10. Connecting pipe; 11. Manifold; 12. Conductive rubber strip. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Example: Reference Figure 1-4The temperature transmitter shown includes a transmitter body 1, which serves as the core control unit, responsible for receiving and converting sensor signals to ensure accurate temperature data output. A sensor 3 is fixedly connected to the sensing end of the transmitter body 1, allowing direct contact with the measured medium and sensing temperature changes, providing raw temperature information for the entire device. An anti-interference component is installed on the outside of the transmitter body 1 to block external electromagnetic signals from interfering with the internal circuitry, ensuring stable data transmission. This anti-interference component includes a double-layered bellows 4 on the outside of the transmitter body 1. The double-layered structure enhances physical protection for the sensor while the bellows structure buffers external vibrations, reducing mechanical interference. A fixing clip is fixedly connected to one end of the double-layered bellows 4. Hoop 5 is used to firmly connect the double-layer corrugated pipe to the shielding chamber, ensuring the airtightness of the sealed chamber. One end of the fixing clamp 5 is fixedly connected to the shielding chamber 6, which uses metal material to construct an electromagnetic shielding space to further isolate external electromagnetic radiation. The double-layer corrugated pipe 4, fixing clamp 5, and shielding chamber 6 combine to form a sealed chamber and are fitted onto the outside of the sensor 3, forming multiple protective barriers and improving the stability of the sensor's working environment. A conductive strip busbar assembly is set on the outside of the shielding chamber 6 to regulate the direction of the conductive strips and avoid signal interference caused by messy wiring. The conductive strip busbar assembly includes a first conduit 7 set on the outside of the shielding chamber 6 for passing through some of the signal conductive strips to achieve classified management of the wiring. A conductive strip busbar assembly is fixedly connected to the outside of the shielding chamber 6. The second conduit 8, which is interconnected, can independently accommodate conductive strips with specific functions, preventing signal crosstalk between different conductive strips. A third conduit 9, which is also interconnected, is fixedly connected to the outside of the shielding chamber 6, providing a channel for additional lines and enhancing the flexibility of equipment wiring. One end of the first conduit 7, the second conduit 8, and the third conduit 9 is fixedly connected to the same connecting pipe 10, consolidating the dispersed lines for centralized management and maintenance. A connecting busbar 11 is fixedly connected to the outside of the connecting pipe 10, achieving the final convergence of all conductive strips and reducing the number of line interfaces. Test terminals are provided on the outside of the busbar 11 for convenient signal detection and parameter adjustment during equipment operation. Multiple conductive strips are fixedly connected to the outside of the shielding chamber 6. Strip 12 is used to transmit electrical signals between the sensor and the transmitter body; the other end of the conductive strip 12 is connected to the outside of the transmitter body 1, forming a complete signal transmission path; a lead connector 2 is provided on the outside of the transmitter body 1, serving as the connection interface between the external circuit and the internal circuit; a magnetic bead is connected in series between the lead connector 2 and the internal circuit, utilizing the filtering characteristics of the magnetic bead to suppress high-frequency interference signals from entering the internal circuit through the lead; the output end of the sensor 3 is fixedly connected to the conductive strip 12, realizing the transmission of sensor signals to the conductive strip; a double-lip silicone sealing ring is provided at the connection position between the sensor 3 and the conductive strip 12, which enhances the waterproof and dustproof performance of the connection part through the double sealing structure, protecting the interface from external environmental corrosion.

[0019] In this embodiment, the shielding chamber 6 is tightly connected to the transmitter housing by conductive adhesive strip 12 and grounded at a single point. The signal lines and power lines are arranged separately inside the shielding chamber 6 to avoid power interference coupling to the signal circuit.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature transmitter, comprising a transmitter body (1), characterized in that: A sensor (3) is fixedly connected to the detection end of the transmitter body (1), and an anti-interference component is provided on the outside of the transmitter body (1). The anti-interference component includes a double-layer corrugated pipe (4) disposed on the outside of the transmitter body (1). One end of the double-layer corrugated pipe (4) is fixedly connected to a fixing clamp (5), and one end of the fixing clamp (5) is fixedly connected to a shielding chamber (6). The double-layer corrugated pipe (4), the fixing clamp (5) and the shielding chamber (6) are combined to form a closed chamber and are fitted on the outside of the sensor (3). A conductive rubber strip busbar assembly is disposed on the outside of the shielding chamber (6).

2. The temperature transmitter according to claim 1, characterized in that: The conductive adhesive strip busbar assembly includes a first conduit (7) disposed on the outside of the shielding chamber (6), a second conduit (8) fixedly connected to the outside of the shielding chamber (6), and a third conduit (9) fixedly connected to the outside of the shielding chamber (6). One end of the first conduit (7), the second conduit (8), and the third conduit (9) is fixedly connected to the same connecting pipe (10).

3. The temperature transmitter according to claim 2, characterized in that: The outer side of the connecting pipe (10) is fixedly connected to a manifold (11), and a test terminal is provided on the outer side of the manifold (11).

4. The temperature transmitter according to claim 1, characterized in that: Multiple conductive rubber strips (12) are fixedly connected to the outside of the shielding chamber (6), and the other end of the conductive rubber strips (12) is connected to the outside of the transmitter body (1).

5. The temperature transmitter according to claim 4, characterized in that: The transmitter body (1) is provided with a lead connector (2) on the outside, and a magnetic bead is connected in series between the lead connector (2) and the internal circuit.

6. The temperature transmitter according to claim 1, characterized in that: The output end of the sensor (3) is fixedly connected to a conductive rubber strip (12), and a double-lip silicone sealing ring is provided at the position where the sensor (3) is connected to the conductive rubber strip (12).

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