Single-sided partition THDS black body calibrator

Abstract

The utility model discloses a single-sided partitioned THDS black body calibrator, which is used as important equipment for ensuring railway traffic safety and is used for providing a stable and uniform temperature field so as to accurately calibrate a probe in a THDS probe box. The blackbody radiation source, the lithium battery, the temperature control assembly, the heat insulation assembly, the radiator and the PID temperature controller are arranged in the machine shell, and the display screen and the touch keyboard are arranged on the surface of the machine shell. The two blackbody radiation sources are used for simultaneous inspection and calibration, so that the probe temperature calibration efficiency is improved, and the maintenance time is shortened; aiming at the condition that the two blackbody radiation sources need to work at the same time, the internal structure and device arrangement of the instrument shell are optimally designed, and it is guaranteed that temperature rise and temperature drop of the two blackbody radiation sources do not affect each other and are not affected by other devices; and the whole structure is more compact, and especially under the condition that a lithium battery is introduced, the portable lithium battery charger also has a relatively small volume and is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of railway vehicle axle temperature intelligent detection systems, in particular to a single-sided partitioned THDS blackbody calibrator. Background Art

[0002] The Railway Car Axle Temperature Detection System (THDS) is used to monitor bearing temperatures, prevent thermal axle failures, and ensure railway safety. The probe box, a trackside component of the THDS, uses a built-in photon sensor to detect bearing temperature and other data, and transmits this data to a host computer.

[0003] To ensure the continued normal operation of the probes in the probe box in various open-air environments, such as those characterized by strong vibration, strong electrical interference, humidity, dust, high and low temperatures, the probe temperature measurement accuracy must be regularly calibrated. Currently, the calibration instruments used in field operations are primarily blackbody radiation sources, the accuracy of which directly affects the temperature measurement accuracy of the probes. When calibrating the probe box's temperature measurement accuracy after heating it with a blackbody radiation source, it is necessary to calibrate each of the four probes in the two probe boxes on the left and right sides of the track. This is time-consuming and labor-intensive, increasing maintenance time. Furthermore, the existing blackbody radiation source used for probe box calibration includes a 220V power cord, an unreasonable structural design, and is bulky and heavy, making it difficult to carry. Furthermore, it suffers from low temperature control accuracy and poor anti-interference capabilities, which in turn affects the accuracy of THDS detection results. Summary of the Invention

[0004] To address the aforementioned technical issues, the present invention provides a single-sided, partitioned THDS blackbody calibrator. To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is provided below. This summary is not intended to be a comprehensive review, identify key or important components, or delineate the scope of protection for these embodiments. Its sole purpose is to present some concepts in a simplified form, serving as a prelude to the detailed description that follows.

[0005] The utility model adopts the following technical solutions:

[0006] A single-sided partitioned THDS blackbody calibrator is provided, comprising: a casing and two blackbody radiation sources arranged inside the casing; a lithium battery, a temperature control component, a heat insulation component and a radiator are also arranged in the casing; a transverse partition is provided in the casing to separate the internal space of the casing into a control chamber and a working chamber located below the control chamber, two U-shaped isolation plates are symmetrically provided on the lower surface of the transverse partition, and the opening sides of the two U-shaped isolation plates face outward and are spaced a certain distance apart, the blackbody radiation source is arranged in the U-shaped isolation plate, and the temperature control component is arranged at the opening of the U-shaped isolation plate; a vertical isolation plate is also provided on the lower surface of the transverse partition, and the lithium battery is arranged between the vertical isolation plate and the front side wall of the casing; the radiator is arranged on the side of the temperature control component and the lithium battery.

[0007] Furthermore, a PID temperature controller is provided in the housing, and the PID temperature controller is provided in the control cavity; the lithium battery, the temperature control component, the blackbody radiation source and the radiator are provided in the working cavity.

[0008] Furthermore, the single-sided partitioned THDS blackbody calibrator also includes: a display screen and a touch keyboard, and the display screen and the touch keyboard are arranged on the top plate of the casing; a radiation passage window is opened on the bottom plate of the casing at the positions corresponding to the two blackbody radiation sources.

[0009] Furthermore, the two U-shaped isolation plates are spaced a certain distance apart to form a spacing channel, and the vertical isolation plate is spaced a certain distance apart from the U-shaped isolation plate to form an outlet channel connected to the spacing channel; ventilation holes are provided on the back wall panel of the casing at positions corresponding to the spacing channels, and the channel openings at both ends of the outlet channel face the radiator.

[0010] Furthermore, the thermal insulation assembly includes: a U-shaped thermal insulation board and a vertical thermal insulation board; the U-shaped thermal insulation board is arranged on the inner wall of the U-shaped isolation board, and the vertical thermal insulation board is arranged on the side of the vertical isolation board facing the lithium battery.

[0011] Furthermore, the thermal insulation assembly also includes: an insulation layer pad, which is arranged on the upper surface of the transverse partition; a mounting bracket is also provided on the upper surface of the transverse partition, and the insulation layer pad has a long groove at a position corresponding to the mounting bracket, and the PID temperature controller is arranged on the mounting bracket.

[0012] Furthermore, the thermal insulation component also includes: a thermal insulation gasket, which is arranged between the blackbody radiation source and the radiation passing window.

[0013] Furthermore, harness guide grooves are provided in the spacing channel and the lead-out channel.

[0014] The beneficial effects brought by the utility model are:

[0015] 1. The blackbody calibrator of this application uses two blackbody radiation sources to perform inspection and calibration simultaneously, which improves the efficiency of probe temperature calibration and reduces maintenance time;

[0016] 2. To address the need for two blackbody radiation sources to operate simultaneously, this application optimizes the internal structure and device layout of the instrument housing. Furthermore, partitions are created using transverse partitions, U-shaped partitions, and vertical partitions. This ensures that the temperature rise and fall of the two blackbody radiation sources do not affect each other or other components, thereby ensuring the temperature control accuracy of the blackbody radiation sources.

[0017] 3. The internal device layout of the blackbody calibrator of the present application is more reasonable, making the overall structure more compact while ensuring the heat dissipation and heat insulation effects. Especially when a lithium battery is introduced, it can also have a relatively small volume and be easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the external structure of a single-sided partitioned THDS blackbody calibrator of the utility model;

[0020] Figure 2 This is a bottom schematic diagram of a single-sided partitioned THDS blackbody calibrator of the utility model;

[0021] Figure 3 This is a schematic diagram of the layout of the working chamber of the utility model;

[0022] Figure 4 This is a schematic diagram of the layout of the control chamber of the utility model;

[0023] Figure 5 It is a cross-sectional schematic diagram of a single-side partitioned THDS blackbody calibrator of the present invention. DETAILED DESCRIPTION

[0024] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the embodiments described are only a portion of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0025] like Figure 1-5 As shown, in some illustrative embodiments, a single-sided partitioned THDS blackbody calibrator is provided. As an important device for ensuring railway traffic safety, it is used to provide a stable and uniform temperature field to accurately calibrate the probes in the THDS probe box. The blackbody calibrator of the present application specifically includes: a housing 1, a blackbody radiation source 2 disposed within the housing 1, a lithium battery 3, a temperature control component 4, a thermal insulation component, a radiator 5, a PID temperature controller 6, a display screen 7 disposed on the surface of the housing 1, and a touch keyboard 8.

[0026] Casing 1 is constructed from high-strength, high-temperature-resistant engineering plastic to ensure the blackbody calibrator's long-term stable operation in harsh environments. Preferably, the surface of casing 1 is treated with a black coating. This coating has low reflectivity and effectively absorbs external stray light, thereby preventing optical interference during calibration. Sealing strips are also provided at the joints of casing 1, ensuring both adequate sealing and protection against external environmental influences on internal components.

[0027] The top panel of the housing 1 is provided with a display screen 7 and a touch keyboard 8. Display screen 7, which can be an LCD or LED display, displays information such as the device's operating status, temperature data, and calibration progress. Touch keyboard 8 is used for user input of commands, such as setting the temperature and initiating the calibration procedure. Radiation windows 101 are provided on the bottom panel of the housing 1 at locations corresponding to the two blackbody radiation sources 2. These windows are circular, with an inner diameter of 10 mm.

[0028] Temperature control assembly 4 consists of a heater, a cooling plate, and a temperature sensor. The heater can be a resistance heater or an infrared heater, used to increase the temperature of blackbody radiation source 2; the cooling plate can be a semiconductor cooling plate, used to cool blackbody radiation source 2; and the temperature sensor can be a platinum resistance or thermocouple, used to measure the temperature of blackbody radiation source 2 and provide feedback to PID temperature controller 6. PID temperature controller 6 uses an existing controller and accurately controls the temperature of blackbody radiation source 2 using a PID algorithm to ensure temperature stability and repeatability.

[0029] There are two blackbody radiation sources 2, each corresponding to a corresponding temperature control component. The temperature control components are connected to the blackbody radiation sources 2 and are used to increase or decrease the temperature of the blackbody radiation sources 2 according to the control instructions of the PID temperature controller 6. Both temperature control components are connected to the control output of the PID temperature controller 6. That is, the PID temperature controller 6 controls the two blackbody radiation sources 2 simultaneously by controlling two temperature channels. This allows the operator to set two different temperatures simultaneously during field operation. The two temperature control components each increase or decrease the temperature according to the control instructions, so that the blackbody radiation sources 2 reach the set temperature. Simultaneously, the temperature sensors in the temperature control components monitor the temperature of the blackbody radiation sources 2 in real time, and the PID temperature controller 6 performs closed-loop control to ensure temperature stability.

[0030] When in use, the blackbody calibrator of the present application is placed on the top of the detection box, and the two radiation through windows 101 at the bottom are respectively aligned with the probes in the two detection ports of the detection box. Then, a human-computer interactive dialogue is conducted through the display screen 7 and the touch keyboard 8 to enter the test project. After entering the test parameters, the PID temperature controller 6 is used to automatically control the temperature of the blackbody radiation source 2. The radiation through windows 101 corresponding to the two blackbody radiation sources 2 are located on the same surface, and two independent areas are formed for heat source radiation. Therefore, the two probes of the probe box on one side of the rail can be inspected and calibrated at the same time, which improves the efficiency of probe temperature calibration and reduces maintenance time.

[0031] The existing calibrator used in field operations is equipped with a 220V power cord. The built-in lithium battery 3 in this application provides power for the entire device, which can keep the surface temperature of the blackbody for more than 45 minutes, eliminating the tedious on-site connection of a 220V power supply or configuration of a UPS power supply. Each time the railway line is operated, the calibration of the probe at different temperatures can be completed quickly, and a DC charging power supply is provided for the lithium battery 3.

[0032] A partition 102, made of a high-temperature-resistant material with excellent insulation properties, is installed within the housing 1. This partition divides the interior space of the housing 1 into two independent upper and lower chambers: a control chamber 103 and a working chamber 104. The working chamber 104 is located below the control chamber 103. A PID temperature controller 6 is located within the control chamber 103, receiving temperature commands input by the user and adjusting the temperature of the blackbody radiation source 2 by precisely controlling the temperature control assembly 4. The working chamber 104 is the core working area of ​​the calibrator, housing the lithium battery 3, temperature control assembly 4, blackbody radiation source 2, and radiator 5. The partition 102 separates the control and working areas, optimizing the layout of internal components and improving space efficiency. Furthermore, the separation of the control chamber 103 from the working chamber 104 helps reduce heat conduction, protecting electronic components within the control area from high temperatures and ensuring the temperature control accuracy of the blackbody radiation source 2.

[0033] Two U-shaped isolation panels 105 are symmetrically positioned on the lower surface of the transverse partition 102. These panels 105 are U-shaped, with their open sides facing outward, forming a semi-enclosed space for housing and enclosing the blackbody radiation source 2. The two U-shaped isolation panels 105 are spaced a certain distance apart to ensure sufficient space around the two blackbody radiation sources 2 for thermal insulation. The blackbody radiation sources 2 are positioned within the U-shaped isolation panels 105, effectively isolating them from other components within the working chamber 104. This not only provides a uniform thermal environment, improving the stability and uniformity of the blackbody radiation, but also effectively reduces the impact of heat generated by the lithium battery on the blackbody radiation source 2, eliminating the need for additional space for the lithium battery. The temperature control assembly 4 is positioned within the opening of the U-shaped isolation panels 105, allowing for direct temperature control of the blackbody radiation source 2. The opening of the U-shaped isolation panels 105 also facilitates installation and maintenance of the temperature control assembly 4.

[0034] A vertical isolation plate 106 is also provided on the lower surface of the transverse partition 102. The lithium battery 3 is arranged between the vertical isolation plate 106 and the front side wall of the casing, which can effectively utilize the space while maintaining a certain distance between the battery and the high-temperature area to reduce heat exchange. The vertical isolation plate 106 is arranged perpendicular to the transverse partition 102, and combined with two U-shaped isolation plates 105, the working chamber 104 is further divided into multiple small areas to improve the layout rationality and thermal management efficiency of the internal components. The radiator 5 is arranged on the side of the temperature control component 4 and the lithium battery 3 to achieve simultaneous heat dissipation for the temperature control component 4 and the lithium battery 3, thereby improving the heat dissipation efficiency and reducing the overall thermal load of the equipment.

[0035] Two U-shaped isolation plates 105 are spaced a certain distance apart to form an isolation channel 9. A vertical isolation plate 106 is spaced a certain distance apart from the U-shaped isolation plates 105 to form an outlet channel 10 connected to the isolation channel 9. Ventilation holes 107 are provided on the back wall of the housing at locations corresponding to the isolation channels 9. The two ends of the outlet channel 10 face the radiator 5. When the radiator 5 is operating, air flows through the ventilation holes 107 into the isolation channel 9, then flows through the outlet channel 10 and finally reaches the radiator 5 and is discharged outside the device. This airflow path effectively removes internal heat and optimizes the heat flow path. This structural design not only improves thermal management efficiency, allowing heat to be quickly and effectively removed from the heat source, but also achieves thermal isolation between the two blackbody radiation sources 2 and between the lithium battery and the blackbody radiation source 2, preventing heat exchange between different components and ensuring that each component operates at its optimal operating temperature without interfering with each other.

[0036] A wire harness guide groove 11 is provided in the spacing channel 9 and the outlet channel 10, and is usually arranged along the bottom or side of the channel. The provision of the wire harness guide groove 11 ensures that the wire harness does not occupy the space of other functional components, thereby improving the utilization efficiency of the internal space.

[0037] The heat insulation assembly includes: a U-shaped heat insulation board 201 , a vertical heat insulation board 202 , a heat insulation layer pad 203 , and a heat insulation gasket 204 .

[0038] A U-shaped thermal insulation board 201 is positioned on the inner wall of the U-shaped isolation board 105, and a vertical thermal insulation board 202 is positioned on the side of the vertical isolation board 106 facing the lithium battery 3. The design of the U-shaped thermal insulation board 201 and the vertical thermal insulation board 202 effectively isolates the heat exchange between the blackbody radiation source 2 and other components, reducing thermal fluctuations and thereby improving the calibration accuracy of the blackbody calibrator. A thermal insulation pad 203 is positioned on the upper surface of the transverse partition 102 to prevent mutual interference between the components below and above the transverse partition 102. In addition to thermal isolation, the thermal insulation pad 203 also provides a certain degree of mechanical buffering. A thermal insulation gasket 204 is positioned between the blackbody radiation source 2 and the radiation passage window 101. The thermal insulation gasket 204 is used to achieve thermal isolation between the housing 1 and the blackbody radiation source 2.

[0039] A mounting bracket 108 is also provided on the upper surface of the diaphragm 102, and an elongated groove is provided on the thermal insulation layer pad 203 at a position corresponding to the mounting bracket 108. The PID temperature controller 6 is provided on the mounting bracket 108. The elongated groove allows the mounting bracket 108 to pass through the thermal insulation layer pad 203, so that the PID temperature controller 6 can be installed on the upper surface of the diaphragm 102 while maintaining the integrity of the thermal insulation layer pad 203.

[0040] This application effectively manages the internal temperature and reduces thermal fluctuations, thereby improving the calibration accuracy of the blackbody calibrator, thereby ensuring the temperature measurement accuracy of the probe and ensuring that the axle temperature detection accuracy is true and effective, which is of great significance to ensuring driving safety. In addition, this application improves the temperature control accuracy and is also more lightweight and miniaturized. The chassis volume is: 220×200×100mm, and the equipment weight is: 4.2Kg.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A single-sided partitioned THDS blackbody calibrator, comprising: A housing and a blackbody radiation source disposed inside the housing, wherein the number of the blackbody radiation sources is two; The housing is also provided with a lithium battery, a temperature control component, a heat insulation component and a radiator; A transverse partition is provided in the casing to separate the internal space of the casing into a control chamber and a working chamber located below the control chamber. Two U-shaped isolation plates are symmetrically provided on the lower surface of the transverse partition, and the opening sides of the two U-shaped isolation plates face outward and are spaced a certain distance apart. The blackbody radiation source is provided in the U-shaped isolation plate, and the temperature control component is provided at the opening of the U-shaped isolation plate; a vertical isolation plate is also provided on the lower surface of the transverse partition, and the lithium battery is provided between the vertical isolation plate and the front side wall plate of the casing; the radiator is provided on the side of the temperature control component and the lithium battery.

2. A single-sided partitioned THDS blackbody calibrator according to claim 1, characterized in that: A PID temperature controller is also provided in the housing, and the PID temperature controller is provided in the control cavity; the lithium battery, the temperature control component, the blackbody radiation source and the radiator are provided in the working cavity.

3. A single-sided partitioned THDS blackbody calibrator according to claim 2, characterized in that: Also includes: A display screen and a touch keyboard are provided on the top plate of the housing; and radiation passing windows are provided on the bottom plate of the housing at positions corresponding to the two blackbody radiation sources.

4. The single-sided partitioned THDS blackbody calibrator according to claim 3, characterized in that: The two U-shaped isolation plates are spaced a certain distance apart to form a spacing channel, and the vertical isolation plate is spaced a certain distance apart from the U-shaped isolation plate to form an outlet channel connected to the spacing channel; ventilation holes are provided on the back wall of the casing at positions corresponding to the spacing channels, and the channel openings at both ends of the outlet channel face the radiator.

5. The single-sided partitioned THDS blackbody calibrator according to claim 4, characterized in that: The heat insulation assembly includes: a U-shaped heat insulation board and a vertical heat insulation board; the U-shaped heat insulation board is arranged on the inner wall of the U-shaped isolation board, and the vertical heat insulation board is arranged on the side of the vertical isolation board facing the lithium battery.

6. The single-sided partitioned THDS blackbody calibrator according to claim 5, characterized in that: The thermal insulation assembly also includes: an insulation layer pad, which is arranged on the upper surface of the transverse partition; a mounting bracket is also provided on the upper surface of the transverse partition, and the insulation layer pad has a long groove at a position corresponding to the mounting bracket, and the PID temperature controller is arranged on the mounting bracket.

7. The single-sided partitioned THDS blackbody calibrator according to claim 6, characterized in that: The thermal insulation component further includes a thermal insulation gasket, which is arranged between the blackbody radiation source and the radiation passing window.

8. The single-sided partitioned THDS blackbody calibrator according to claim 7, characterized in that: Wire harness guide grooves are provided in the spacing channel and the lead-out channel.

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