Temperature sensor for explosion-proof platinum thermistor

Abstract

The utility model relates to the technical field of temperature sensors, in particular to a temperature sensor for an explosion-proof platinum thermistor, which comprises an explosion-proof shell, a detection probe, an isolating layer, a circuit board, a sliding rod, a folding frame and the like. A detection probe is arranged on one side of the explosion-proof shell, an isolation layer is arranged in the explosion-proof shell, a circuit board is installed in the isolation layer, one end of the detection probe extends into the isolation layer and is electrically connected with the circuit board, a sliding rod is fixedly connected to one side of the isolation layer, and a micro electric cylinder is installed on the sliding rod. According to the utility model, through the design of the micro electric cylinder, the folding frame, the baffle plate and the like, external air can smoothly enter the isolation layer to carry out heat dissipation and cooling on the circuit board, so that the heat dissipation efficiency is improved, and the stable operation of the circuit board in an extreme environment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field temperature sensor technical field especially relates to a temperature sensor for explosion -proof platinum resistance. BACKGROUND

[0002] In industrial production, petroleum chemical industry, coal mining and many other fields, accurate measurement of temperature is very important, so platinum resistance temperature sensor is widely used.

[0003] When the conventional platinum resistance temperature sensor detects that the environment temperature of the probe is increased, heat is easily transferred to the internal circuit board through various channels, the circuit board is very sensitive to temperature as its core control part, once heated, the performance of the internal electronic components will be affected, resulting in reduced measurement accuracy, even failure, which seriously affects the stability and safety of the production process. The heat dissipation mode of the conventional sensor is limited, and heat cannot be effectively dissipated under high temperature, further increasing the risk of the circuit board being affected by high temperature.

[0004] To solve the above problems, a temperature sensor for explosion -proof platinum resistance needs to be designed. UTILITY MODEL CONTENTS

[0005] In order to overcome the limitation of the heat dissipation mode of the conventional sensor, the heat cannot be effectively dissipated under high temperature, the purpose of the utility model is to provide a temperature sensor for explosion -proof platinum resistance.

[0006] The technical scheme of the utility model is: a temperature sensor for explosion -proof platinum resistance, comprising an explosion -proof shell, a detection probe, an isolation layer, a circuit board, a sliding rod, a folding frame, a connecting rod, a baffle, a micro electric cylinder and an instrument panel, the explosion -proof shell is provided with a detection probe on one side, the explosion -proof shell is provided with an isolation layer inside, the isolation layer is provided with a circuit board inside, one end of the detection probe extends into the isolation layer and is electrically connected with the circuit board, the isolation layer is fixedly connected with a sliding rod on one side, the sliding rod is provided with a micro electric cylinder, the piston rod of the micro electric cylinder is connected with a connecting rod, the sliding rod is provided with a folding frame, the connecting rod is rotatably connected with the folding frame, the folding frame is fixedly connected with a baffle, the explosion -proof shell is provided with an instrument panel on the top, and the instrument panel is connected with the circuit board by wires.

[0007] As a further preferred scheme, the explosion -proof shell is fixedly connected with an assembly part on the side away from the instrument panel.

[0008] As a further preferred scheme, a spring is arranged between the explosion -proof shell and the isolation layer.

[0009] As a further preferred scheme, one end of the folding frame is rotatably connected with the sliding rod, and the other end is slidably connected with the sliding rod.

[0010] As a further preferred scheme, the explosion-proof shell is fixedly connected with a connecting piece, and the connecting piece is threadedly connected with a protective cover.

[0011] As a further preferred scheme, the explosion-proof shell is fixedly connected with a connecting piece, and the connecting piece is threadedly connected with a protective cover.

[0012] Compared with the prior art, the utility model has the advantages that: 1, the utility model discloses a through the mini electric cylinder, folding frame and baffle etc.

[0013] 2, the utility model discloses a spring design makes the device when being impacted can through deformation absorption and consumption impact force, provides effective buffering action for the isolation layer and the circuit board in, helps to prevent the precision parts from being damaged due to the impact, improves the durability and stability of the device.

[0014] 3, the utility model discloses a fan design can accelerate the speed of air flow, to further enhance the heat dissipation effect, improves the heat dissipation efficiency and heat dissipation quality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the explosion drawing of the explosion-proof shell, connecting piece and isolation layer of the utility model.

[0017] Figure 3 It is the three-dimensional structure schematic diagram of the spring, slide bar and baffle of the utility model.

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the folding frame, connecting rod and mini electric cylinder of the utility model.

[0019] Mark name in drawing: 1-explosion-proof shell, 2-detecting probe, 3-connecting piece, 4-assembly, 5-spring, 6-isolation layer, 7-circuit board, 8-slide bar, 9-folding frame, 901-connecting rod, 10-baffle, 11-mini electric cylinder, 12-protective cover, 13-fan, 14-instrument panel. DETAILED DESCRIPTION

[0020] 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.

[0021] Example: A temperature sensor for explosion-proof platinum resistance thermometers, such as... Figures 1-4 As shown, the device includes an explosion-proof housing 1, a detection probe 2, an isolation layer 6, a circuit board 7, a slide rod 8, a folding frame 9, a connecting rod 901, a baffle 10, a miniature electric cylinder 11, and an instrument panel 14. The detection probe 2 is located on one side of the explosion-proof housing 1. An isolation layer 6 is located inside the explosion-proof housing 1, and the circuit board 7 is installed inside the isolation layer 6. One end of the detection probe 2 extends into the isolation layer 6 and is electrically connected to the circuit board 7. A slide rod 8 is fixedly connected to one side of the isolation layer 6, and a miniature electric cylinder 11 is mounted on the slide rod 8. The piston rod of the miniature electric cylinder 11 is connected to the connecting rod 901. A folding frame 9 is mounted on the slide rod 8, and the connecting rod 901 is rotatably connected to the folding frame 9. A baffle 10 is fixedly connected to the folding frame 9. An instrument panel 14 is mounted on the top of the explosion-proof housing 1 and is electrically connected to the circuit board 7. Here, one end of the folding frame 9 is rotatably connected to the slide rod 8, and the other end is slidably connected to the slide rod 8. The design of the instrument panel 14 allows for the intuitive display of the data measured by the device, facilitating workers' understanding of the specific situation and improving the flexibility of the device.

[0022] like Figures 1-2 As shown, the explosion-proof housing 1 is fixedly connected to the side facing away from the instrument panel 14 with the mounting accessory 4. Here, the design of the mounting accessory 4 allows workers to easily install the device in any position, effectively improving the flexibility and practicality of the device.

[0023] like Figures 2-3 As shown, a spring 5 is provided between the explosion-proof housing 1 and the isolation layer 6. Here, the spring 5 is designed to absorb and dissipate the impact force on the device through deformation when the device is impacted, thereby providing a buffer for the isolation layer 6 and the internal circuit board 7, preventing damage to the precision parts inside the device, and effectively improving the stability of the device.

[0024] like Figures 1-2 As shown, a connector 3 is fixedly connected to one side of the explosion-proof housing 1. The connector 3 is threadedly connected to a protective cover 12. The protective cover 12 is designed so that the device can be opened by simple rotation, which makes it convenient for workers to observe the circuit board 7 inside the device so that it can be replaced or repaired in a timely manner.

[0025] like Figure 2As shown, the explosion-proof housing 1 is provided with a through hole for the folding frame 9 and the single board to move, and the explosion-proof housing 1 is provided with a fan 13 near the through hole, wherein the fan 13 is designed to accelerate the speed of air flow, thereby further enhancing the heat dissipation effect, improving the heat dissipation efficiency and quality of the device.

[0026] When the device is used, the basic function of the temperature sensor is started, when the device is in a high temperature environment, the micro cylinder 11 is started, the piston rod of the micro cylinder 11 is retracted inward, the piston rod of the micro cylinder 11 exerts a pulling force on the connecting rod 901 during the retraction process, the connecting rod 901 drives the folding frame 9 to move towards the micro cylinder 11, so that the folding frame 9 is folded and retracted, when the folding frame 9 is retracted, the structure changes to cause the components of the connecting baffle 10 to move, thereby driving the baffle 10 to overturn, thereby removing the blocking effect of the baffle 10 on the isolation layer 6, so that external air can pass through the baffle 10 to enter the inside of the isolation layer 6, realizing air flow, cooling and heat dissipation of the circuit board 7 in the isolation, ensuring stable operation of the circuit board 7, and the work is completed.

[0027] Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A temperature sensor for use with an explosion-proof platinum resistance thermometer, comprising an explosion-proof housing (1), a detection probe (2), an isolation layer (6), and a circuit board (7), wherein the detection probe (2) is disposed on one side of the explosion-proof housing (1), the isolation layer (6) is disposed inside the explosion-proof housing (1), the circuit board (7) is installed inside the isolation layer (6), and one end of the detection probe (2) extends into the isolation layer (6) and is electrically connected to the circuit board (7), characterized in that, The sliding rod (8), the folding frame (9), the connecting rod (901), the baffle (10), the micro electric cylinder (11) and the instrument panel (14) are further included, one side of the isolation layer (6) is fixedly connected with the sliding rod (8), the micro electric cylinder (11) is installed on the sliding rod (8), the piston rod of the micro electric cylinder (11) is connected with the connecting rod (901), the folding frame (9) is arranged on the sliding rod (8), the connecting rod (901) is rotatably connected with the folding frame (9), the folding frame (9) is fixedly connected with the baffle (10), the instrument panel (14) is installed on the top of the explosion-proof shell (1), and the instrument panel (14) is electrically connected with the circuit board (7).

2. A temperature sensor for an explosion-proof platinum resistance according to claim 1, characterized in that The explosion-proof shell (1) is fixedly connected with the assembly part (4) on the side away from the instrument panel (14).

3. A temperature sensor for an explosion-proof platinum resistance according to claim 2, characterized in that The spring (5) is arranged between the explosion-proof shell (1) and the isolation layer (6).

4. A temperature sensor for an explosion-proof platinum resistance according to claim 3, characterized in that One end of the folding frame (9) is rotatably connected with the sliding rod (8), and the other end is slidably connected with the sliding rod (8).

5. A temperature sensor for an explosion-proof platinum resistance according to claim 4, characterized in that The connecting part (3) is fixedly connected on one side of the explosion-proof shell (1), and the protective cover (12) is threadedly connected with the connecting part (3).

6. A temperature sensor for an explosion-proof platinum resistance according to claim 5, characterized in that The through hole is arranged on the explosion-proof shell (1) and used for the movement of the folding frame (9) and the single board, and the fan (13) is installed on the explosion-proof shell (1) near the through hole.

Images