A thermal aging test chamber for cable detection

Abstract

The utility model relates to cable detection technical field, the utility model provides a kind of hot ageing test chamber for cable detection, including test chamber, the test chamber includes box, the inside of the box is provided with first empty groove and second empty groove.The utility model provides a kind of hot ageing test chamber for cable detection, by being set up in the air outlet extending to first empty groove above box, and being provided with the heat dissipation mechanism consisting of table body, cambered surface board, extension spring etc. in air outlet, and two side plates are symmetrically distributed in the two sides of air outlet, after test, can pull handle upwards to make table body slide, let heat dissipation port be completely exposed, external cold air is into first empty groove through air inlet, heat dissipation port and realizes quick heat dissipation, first fan can also be started to assist ventilation, realizes efficient cooling after test, solves the technical problem of slow heat dissipation efficiency in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, specifically to a thermal aging test chamber for cable testing. Background Technology

[0002] In the field of wire and cable production and quality inspection, in order to evaluate the performance stability of cable insulation, sheathing and other materials under long-term high-temperature environments, thermal aging tests are required to simulate the actual operating conditions of cables, thereby determining whether the materials meet industry standards and usage requirements. Thermal aging test chambers for cable testing, as core testing equipment, are widely used by wire and cable companies, quality inspection agencies, and research institutions. Their performance directly affects the accuracy and efficiency of test results.

[0003] Existing cable testing thermal aging chambers suffer from significant drawbacks in practical use, including low heat dissipation efficiency after testing. The reasons are as follows: Firstly, to ensure temperature stability during testing, the chamber requires excellent insulation. Therefore, a thick insulation layer is used between the inner and outer chambers, and the door employs a high-quality sealing strip. This makes it difficult for the large amount of heat accumulated inside the chamber to dissipate quickly after the test. Secondly, existing equipment relies solely on natural cooling. After the heating system is shut off, heat is slowly released through the chamber's own thermal conduction. However, the inner chamber volume is typically between 100-500L, resulting in a large internal air volume and high heat accumulation, leading to a prolonged cooling process. Therefore, improvements are needed. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this utility model provide a thermal aging test chamber for cable testing, which solves the technical problem of slow heat dissipation efficiency in related technologies.

[0005] According to one aspect, at least one embodiment of the present invention provides a thermal aging test chamber for cable testing, comprising a test chamber, the test chamber including a chamber body, the interior of the chamber body having a first empty slot and a second empty slot, an air outlet extending into the first empty slot being opened at the top of the chamber body, a heat dissipation mechanism being provided inside the air outlet, the heat dissipation mechanism including a platform slidably connected inside the air outlet, a first limiting plate welded to the lower end of the platform body located below the air outlet, and a second limiting plate welded to the upper end of the platform body located above the air outlet. A handle is welded to the top of the second limiting plate. Side plates located on both sides of the air outlet are welded to the top of the box body. A groove is formed on the inner side of the side plate. Movable grooves are formed on both sides of the platform body. A third limiting plate is slidably installed inside the movable groove. An arc panel extending into the groove is welded to the front end of the third limiting plate. A telescopic spring is elastically installed between the inner side of the movable groove and the inner side of the third limiting plate. An air inlet extending into the body of the platform body is formed on the lower side of the first limiting plate. Heat dissipation vents penetrating to the outer side of the platform body are formed on both sides of the air inlet.

[0006] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: a fixing mechanism provided on the inner side of the first empty slot, the fixing mechanism including a disc bolted to the inside of the first empty slot, a round rod rotatably mounted on the front end of the disc, a long plate uniformly welded to the outer side of the round rod, a rectangular plate welded to the front end of the round rod, two square plates welded to the front ends of the rectangular plate, a clamping plate provided below the upper square plate, a spiral shaft extending through to the top of the square plate welded above the clamping plate, and a knob welded above the spiral shaft.

[0007] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: a first fan bolted inside the chamber and located inside a second slot; a circulating air hole located above the first fan and extending into the first slot is provided inside the chamber; and the first fan is located below a side plate.

[0008] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: a second fan located inside a first empty slot is bolted to the inside of the chamber, and an electric heating tube is arranged above the second fan.

[0009] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: a door body provided on the front side of the first empty slot, an observation window provided on the surface of the door body, and a control panel provided on the front side of the second empty slot.

[0010] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: an external thread provided on the outer side of the spiral shaft, and an internal threaded hole adapted to the external thread of the spiral shaft being opened inside the upper square plate, wherein the spiral shaft and the square plate are connected by a threaded transmission.

[0011] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: the rear side of the disc is fixedly connected to the inner wall of the first empty groove by bolts, and the axis of the disc is parallel to the depth direction of the first empty groove; the rear end of the round rod is rotatably connected to the center position of the front end face of the disc, and the axis of the round rod is collinear with the axis of the disc; a plurality of long plates are evenly distributed along the outer peripheral wall of the round rod, and the length direction of the long plates is consistent with the radial direction of the round rod.

[0012] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: a second fan and an electric heating tube both located inside a first empty slot, with the second fan located directly below the electric heating tube; the outer peripheral wall of the second fan is fixedly connected to the inner side wall of the first empty slot by bolts, and the air outlet of the second fan faces upward; both ends of the electric heating tube are respectively fixedly connected to the inner walls of the two sides opposite to the first empty slot by brackets, and the axis of the electric heating tube is aligned with the center of the air outlet of the second fan.

[0013] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: one side of the door body is rotatably connected to the front side of the chamber body via a hinge, the other side of the door body is detachably connected to the front side of the chamber body via a door lock, and when the door body is closed, the rear end face of the door body is in contact with the edge of the front groove of the first empty groove; the observation window is embedded in the center position of the panel of the door body.

[0014] According to another aspect, at least one embodiment of the present invention also provides a thermal aging test chamber for cable testing, comprising: two side plates symmetrically distributed on the left and right sides of the air outlet, and the lower ends of the side plates being welded and fixed perpendicularly to the upper surface of the chamber.

[0015] The beneficial effects of this utility model are as follows: In this invention, an air outlet extending to the first empty slot is opened above the chamber, and a heat dissipation mechanism consisting of a platform, an arc panel, and a telescopic spring is set inside the air outlet. Two side plates are symmetrically distributed on both sides of the air outlet. After the test, the handle can be pulled upward to slide the platform, allowing the heat dissipation port to be fully exposed. Outside cold air enters the first empty slot through the air inlet and heat dissipation port to achieve rapid heat dissipation. The first fan can also be started to assist ventilation, achieving efficient cooling after the test. This solves the technical problems of slow heat dissipation efficiency and the need to wait a long time before the cable can be removed in the prior art after the test chamber is completed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the interior of the housing of this utility model; Figure 3 This is a schematic diagram of the housing of this utility model; Figure 4 This is a schematic diagram of the fixing mechanism of this utility model; Figure 5 This is a schematic diagram of the heat dissipation mechanism of this utility model; Figure 6 This is a vertical cross-sectional view of the heat dissipation mechanism of this utility model.

[0018] In the diagram: 1. Test chamber; 11. Chamber body; 12. First empty slot; 13. Second empty slot; 14. First fan; 15. Second fan; 16. Heating element; 17. Circulating air vent; 18. Air outlet; 2. Control panel; 3. Door; 4. Observation window; 5. Fixing mechanism; 51. Disc; 52. Round rod; 53. Long plate; 54. Rectangular plate; 55. Square plate; 56. Clamping plate; 57. Knob; 58. Screw shaft; 6. Heat dissipation mechanism; 61. Platform; 62. First limiting plate; 63. Second limiting plate; 64. Handle; 65. Heat dissipation vent; 66. Air inlet; 67. Side plate; 68. Groove; 69. Movable groove; 610. Arc panel; 611. Third limiting plate; 612. Telescopic spring. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0020] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] like Figures 1-6The diagram illustrates a cable testing thermal aging test chamber according to an embodiment of the present invention. The chamber includes a test chamber 1, which comprises a chamber body 11. The chamber body 11 has a first slot 12 and a second slot 13 inside. An air outlet 18 extending into the first slot 12 is provided above the chamber body 11. A heat dissipation mechanism 6 is provided inside the air outlet 18. The heat dissipation mechanism 6 includes a platform 61 slidably connected inside the air outlet 18. A first limiting plate 62 located below the air outlet 18 is welded to the lower end of the platform 61, and a second limiting plate 63 located above the air outlet 18 is welded to the upper end of the platform 61. A handle 64 is welded to the top of the box 11. Side plates 67 located on both sides of the air outlet 18 are welded to the top of the box 11. A groove 68 is provided on the inner side of the side plate 67. Movable grooves 69 are provided on both sides of the platform 61. A third limiting plate 611 is slidably installed inside the movable groove 69. An arc panel 610 extending into the groove 68 is welded to the front end of the third limiting plate 611. A telescopic spring 612 is elastically installed between the inner side of the movable groove 69 and the inner side of the third limiting plate 611. An air inlet 66 extending into the platform 61 is provided on the lower side of the first limiting plate 62. A heat dissipation vent 65 penetrating to the outer side of the platform 61 is provided on both sides of the air inlet 66.

[0026] When heat dissipation is needed, an upward force is applied to the handle 64, causing the platform 61 to slide upward along the air outlet 18. During the sliding process, the arc panel 610 is squeezed by the inner wall of the groove 68, causing the third limiting plate 611 to retract into the movable groove 69 and compress the telescopic spring 612 until the second limiting plate 63 contacts the upper surface of the box 11. At this time, the heat dissipation vent 65 is fully exposed. Outside cold air enters the platform 61 through the air inlet 66, and then enters the first empty groove 12 through the heat dissipation vent 65. After mixing with the hot air in the first empty groove 12, it is discharged from the heat dissipation vent 65, achieving rapid heat dissipation. When heat dissipation is not needed, a downward force is applied to the handle 64, causing the platform 61 to slide downward along the air outlet 18. Under the elastic force of the telescopic spring 612, the arc panel 610 extends out of the movable groove 69 and is locked into the groove 68, achieving the limiting and fixing of the platform 61.

[0027] By opening an air outlet 18 extending to the first empty slot 12 above the chamber 11, and setting a heat dissipation mechanism 6 consisting of a platform 61, an arc panel 610, and a telescopic spring 612 inside the air outlet 18, with two side plates 67 symmetrically distributed on both sides of the air outlet 18, after the test, the handle 64 can be pulled upward to slide the platform 61, allowing the heat dissipation port 65 to be fully exposed. Outside cold air enters the first empty slot 12 through the air inlet 66 and the heat dissipation port 65 to achieve rapid heat dissipation. The first fan 14 can also be started to assist ventilation, achieving efficient cooling after the test and solving the technical problems of slow heat dissipation efficiency and long waiting time before the cable can be removed in the prior art after the test chamber is completed.

[0028] like Figures 1-6As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. A fixing mechanism 5 is provided on the inner side of the first empty slot 12. The fixing mechanism 5 includes a disc 51 bolted inside the first empty slot 12. A round rod 52 is rotatably mounted on the front end of the disc 51. A long plate 53 is uniformly welded on the outer side of the round rod 52. A rectangular plate 54 is welded on the front end of the round rod 52. Two square plates 55 are welded on the front sides of both ends of the rectangular plate 54. A clamping plate 56 is provided below the upper square plate 55. A spiral shaft 58 extending through to the top of the square plate 55 is welded above the clamping plate 56. A knob 57 is welded above the spiral shaft 58.

[0029] In some examples, the sample to be tested is placed on the surface of the long plate 53, and the knob 57 is turned to drive the screw shaft 58 to rotate. The screw shaft 58 moves downward along the square plate 55 under the action of the thread, thereby pushing the clamping plate 56 closer to the long plate 53 until the clamping plate 56 and the long plate 53 cooperate to clamp the sample. When it is necessary to remove the sample, the knob 57 is turned in the opposite direction, and the screw shaft 58 drives the clamping plate 56 to move upward, releasing the clamping of the sample. At the same time, the position of the long plate 53 can be adjusted to meet different placement requirements by rotating the round rod 52 to drive the long plate 53 and the rectangular plate 54 to rotate.

[0030] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. The chamber body 11 is bolted with a first fan 14 located inside the second slot 13. The chamber body 11 has a circulation air hole 17 located above the first fan 14 and extending into the first slot 12. The first fan 14 is located below the side plate 53.

[0031] In some examples, the first fan 14 is activated, and the airflow generated by the first fan 14 flows upward and enters the first empty slot 12 through the circulation air hole 17, providing power for the air circulation in the first empty slot 12; at the same time, the airflow acts on the long plate 53 located above the first fan 14, which can drive the long plate 53 and the components connected to it to move, so that the sample in the first empty slot 12 can be in contact with the airflow and heat more evenly, improving the test effect.

[0032] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. A second fan 15 located inside the first slot 12 is bolted inside the chamber body 11, and an electric heating tube 16 is arranged above the second fan 15.

[0033] In some examples, the heating element 16 is activated, generating heat; at the same time, the second fan 15 is activated, generating an upward airflow. The airflow acts on the heat generated by the heating element 16, evenly delivering the heat to the inside of the first empty slot 12, causing the temperature inside the first empty slot 12 to rise rapidly and be maintained within a set range, providing a stable thermal aging environment for the sample.

[0034] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing, wherein a door 3 is provided on the front side of the first empty slot 12, an observation window 4 is provided on the surface of the door 3, and a control panel 2 is provided on the front side of the second empty slot 13.

[0035] In some examples, when it is necessary to place or remove a sample, the door 3 is opened, and after the operation is completed, the door 3 is closed. The door 3 is fixed to the chamber 11 by the door lock to ensure the sealing of the first empty slot 12. During the test, the state of the sample in the first empty slot 12 can be observed through the observation window 4. The test parameters can be set through the control panel 2, and the start and stop of the test chamber 1 can be controlled, while the operating status of the test chamber 1 is monitored.

[0036] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. The outer side of the spiral shaft 58 is provided with an external thread, and the interior of the upper square plate 55 is provided with an internal thread hole that matches the external thread of the spiral shaft 58. The spiral shaft 58 and the square plate 55 are connected by a threaded transmission.

[0037] In some examples, rotating the knob 57 drives the spiral shaft 58 to rotate. Since the outer thread of the spiral shaft 58 is adapted to the inner thread of the square plate 55, the spiral shaft 58 moves along the axial direction of the square plate 55 during rotation. When the spiral shaft 58 moves downward, it pushes the clamping plate 56 closer to the sample, thereby clamping the sample. When the spiral shaft 58 moves upward, it drives the clamping plate 56 away from the sample, thereby releasing the clamp. The stability of the movement of the clamping plate 56 and the controllability of the clamping force are ensured through the threaded transmission.

[0038] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. The rear side of the disc 51 is fixedly connected to the inner wall of the first empty groove 12 by bolts, and the axis of the disc 51 is parallel to the depth direction of the first empty groove 12; the rear end of the round rod 52 is rotatably connected to the center position of the front end face of the disc 51, and the axis of the round rod 52 is collinear with the axis of the disc 51; a plurality of long plates 53 are evenly distributed along the outer peripheral wall of the round rod 52, and the length direction of the long plates 53 is consistent with the radial direction of the round rod 52.

[0039] In some examples, the disc 51 is fixed to the inside of the first slot 12 by bolts to provide stable support for the round rod 52; the round rod 52 can rotate around the axis of the disc 51, and when the round rod 52 is rotated, it drives the long plate 53 and the rectangular plate 54 to rotate synchronously; since the long plate 53 is evenly distributed along the outer periphery of the round rod 52, and the length direction of the long plate 53 is consistent with the radial direction of the round rod 52, rotating the round rod 52 can adjust the spatial position of the long plate 53, which is convenient for placing multiple samples on the long plate 53, and ensures that the samples are subjected to uniform force and consistent heating.

[0040] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. The second fan 15 and the electric heating tube 16 are both located inside the first empty slot 12, and the second fan 15 is located directly below the electric heating tube 16. The outer peripheral wall of the second fan 15 is fixedly connected to the inner side wall of the first empty slot 12 by bolts, and the air outlet of the second fan 15 faces upward. The two ends of the electric heating tube 16 are respectively fixedly connected to the inner walls of the two sides opposite to the first empty slot 12 by brackets, and the axis of the electric heating tube 16 is aligned with the center of the air outlet of the second fan 15.

[0041] In some examples, the second fan 15 is fixed inside the first cavity 12 by bolts. After the second fan 15 is started, the air outlet of the second fan 15 outputs airflow upward. The electric heating tube 16 is fixed inside the first cavity 12 by a bracket and is located directly above the second fan 15. After the electric heating tube 16 heats up, the airflow generated by the second fan 15 acts directly on the electric heating tube 16, quickly and evenly dispersing the heat generated by the electric heating tube 16 to various areas of the first cavity 12, avoiding local temperature differences in the first cavity 12 and ensuring the stability of the test environment.

[0042] like Figures 1-6 As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing. One side of the door 3 is rotatably connected to the front side of the chamber 11 by a hinge, and the other side of the door 3 is detachably connected to the front side of the chamber 11 by a door lock. When the door 3 is closed, the rear end face of the door 3 is in contact with the edge of the front groove of the first slot 12. The observation window 4 is embedded in the center of the panel of the door 3.

[0043] In some examples, when it is necessary to open the door 3, the door lock is unlocked and the door 3 is rotated around the hinge to open it; when closing the door 3, the door 3 is rotated in the opposite direction so that the rear end face of the door 3 fits against the edge of the first empty groove 12, and then the door 3 is fixed by the door lock to ensure the sealing of the first empty groove 12; during the test, the changes of the sample in the first empty groove 12 can be directly observed through the observation window 4 without opening the door 3, thus avoiding affecting the temperature stability in the first empty groove 12.

[0044] like Figures 1-6As shown, on the other hand, this utility model also provides a thermal aging test chamber for cable testing, with two side plates 67 symmetrically distributed on the left and right sides of the air outlet 18, and the lower end of the side plates 67 being vertically welded and fixed to the upper surface of the chamber body 11.

[0045] In some examples, two side plates 67 are symmetrically fixed on both sides of the air outlet 18 to provide guidance and limit for the sliding of the platform 61. When the platform 61 slides along the air outlet 18, the side plates 67 can limit the left and right displacement of the platform 61 to ensure that the platform 61 always moves along the axial direction of the air outlet 18. At the same time, the groove 68 on the inner side of the side plate 67 cooperates with the arc panel 610 on the platform 61 to fix the platform 61 in different positions and ensure the stability of the heat dissipation or sealing state.

[0046] Working principle and usage process of this utility model: Pull the door 3 outward to reveal the first slot 12 inside the box 11. At this point, the bolted disc 51 and its matching fixing components inside the first slot 12 can be observed. Rotate the round rod 52 to rotate the uniformly welded long plate 53 on the outside to a horizontal position, facilitating sample placement. Simultaneously, confirm that the square plates 55 on the front sides of both ends of the rectangular plate 54 are stable, and the clamping plate 56 below the upper square plate 55 is initially open. Lay the pre-treated cable sample flat on the surface of the long plate 53, extending both ends of the sample between the clamping plate 56 and the square plate 55. Rotate the knob 57 clockwise to rotate the spiral shaft 58 welded below it. The spiral shaft 58 moves downward along the internal threads of the square plate 55. Push the clamping plate 56 downwards synchronously until the clamping plate 56 and the long plate 53 cooperate to clamp the cable sample, ensuring that the sample does not shift during the test; according to the number of samples, after confirming that the samples are fixed, close the door 3 to ensure that the door is sealed; through the control board 2 corresponding to the second empty slot 13 on the front side of the box 11, set the test parameters: input the target thermal aging temperature and aging time, and set the air circulation frequency according to the test standard; after the parameters are set, check whether the parameters displayed on the control board 2 are accurate, and proceed to the next step after confirming that they are correct; send the start command through the control board 2, and the equipment starts to run: first, the first fan 14 located inside the second empty slot 13 starts, and the air generated by the first fan 14 flows... The air enters the first empty slot 12 through the circulation vent 17 inside the housing 11, providing power for air circulation within the first empty slot 12. Simultaneously, the long plate 53 moves, causing it to rotate the round rod 52, which in turn causes the rectangular plate 54 to rotate the cable, increasing the cable's heating effect. The second fan 15 and the electric heating element 16 inside the first empty slot 12 start, the electric heating element 16 heats up, and the second fan 15 drives the hot airflow to diffuse evenly within the first empty slot 12, rapidly raising the temperature to the set value. The temperature control system monitors the temperature in real time and stabilizes the temperature within the first empty slot 12 within the set fluctuation range by controlling the start and stop of the electric heating element 16, meeting the requirements of the thermal aging test. Throughout the entire thermal aging test, the operator... The observation window 4 on the door 3 periodically observes the condition of the cable sample in the first empty slot 12 and records whether the sample shows discoloration, deformation, cracking, or other phenomena. At the same time, the temperature, running time, fan speed, and other parameters are viewed in real time through the control board 2 to ensure that the equipment operates stably according to the set program. If any abnormal parameters occur, the control board 2 will trigger an alarm, and the operator must stop the machine in time to check and troubleshoot. When the test reaches the set time, the control board 2 will automatically issue a stop command, and the heating tube 16, the first fan 14, and the second fan 15 will stop running in sequence, and the aging stage will end. The operator holds the handle 64 welded on the top of the platform 61 in the heat dissipation mechanism 6 and pulls the handle 64 upward, causing the platform 61 to slide upward along the air outlet 18.At this time, the arc panel 610 inside the movable grooves 69 on both sides of the platform 61 is squeezed by the inner wall of the groove 68, causing the third limiting plate 611 to retract into the movable groove 69, and continue to pull the platform 61 upward until the second limiting plate 63 at the lower end of the platform 61 contacts the upper surface of the box 11. At the same time, the arc panel 610 moves above the side panel 67, and the heat dissipation vent 65 on the platform 61 is fully exposed. Outside cold air enters the platform 61 through the air inlet 66, and then enters the first empty groove 12 of the box 11 through the heat dissipation vent 65. After mixing with the hot air in the first empty groove 12, it is discharged through the heat dissipation vent 65 to achieve rapid heat dissipation. At the same time, the first fan 14 can be started to assist in heat dissipation. The temperature change in the first empty groove 12 can be monitored through the control board 2. When the temperature drops to a safe range, heat dissipation is stopped. Pull the door 3 outwards, rotate the knob 57 counterclockwise to move the spiral shaft 58 upwards, and lift the clamping plate 56 to release the cable sample; remove the sample from the long plate 53 and place it in the designated container for subsequent performance testing; after removing the sample, rotate the round rod 52 to rotate the long plate 53 to a vertical storage state; press down the handle 64 to push the platform 61 to slide downwards along the air outlet 18. The arc panel 610 is squeezed by the side plate 67, pushing the third limit plate 611 to compress the telescopic spring 612 and enter the movable groove 69 until the platform 61 is fully embedded in the air outlet 18, the arc panel 610 re-locks in the groove 68, and the heat dissipation mechanism 6 resets; close the door 3, turn off the power to the control board 2, clean the surface of the equipment and the inside of the first empty groove 12, and complete the test operation.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the present invention.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A thermal aging test chamber for cable testing, comprising a test chamber (1), characterized in that: The test chamber (1) includes a chamber body (11), the chamber body (11) has a first slot (12) and a second slot (13) inside, and an air outlet (18) extending into the first slot (12) is provided on the top of the chamber body (11). A heat dissipation mechanism (6) is provided inside the air outlet (18), and the heat dissipation mechanism (6) includes a platform (61) slidably connected inside the air outlet (18). A first limiting plate (62) located below the air outlet (18) is welded to the lower end of the platform (61), and a second limiting plate (63) located above the air outlet (18) is welded to the upper end of the platform (61). A handle (64) is welded above the second limiting plate (63). Side plates (67) located on both sides of the air outlet (18) are welded on the top. The inner side of the side plate (67) is provided with a groove (68). Movable grooves (69) are provided on both sides of the platform (61). A third limiting plate (611) is slidably installed inside the movable groove (69). An arc panel (610) extending into the groove (68) is welded to the front end of the third limiting plate (611). A telescopic spring (612) is elastically installed between the inner side of the movable groove (69) and the inner side of the third limiting plate (611). An air inlet (66) extending into the platform (61) is provided on the lower side of the first limiting plate (62). A heat dissipation port (65) penetrating to the outside of the platform (61) is provided on both sides of the air inlet (66).

2. The thermal aging test chamber for cable testing according to claim 1, characterized in that: A fixing mechanism (5) is provided on the inner side of the first empty slot (12). The fixing mechanism (5) includes a disc (51) bolted inside the first empty slot (12). A round rod (52) is rotatably installed at the front end of the disc (51). A long plate (53) is uniformly welded on the outer side of the round rod (52). A rectangular plate (54) is welded to the front end of the round rod (52). Two square plates (55) are welded to the front sides of both ends of the rectangular plate (54). A clamping plate (56) is provided below the upper square plate (55). A spiral shaft (58) that penetrates to the top of the square plate (55) is welded above the clamping plate (56). A knob (57) is welded above the spiral shaft (58).

3. The thermal aging test chamber for cable testing according to claim 2, characterized in that: The box (11) is bolted to a first fan (14) located inside the second slot (13). The box (11) has a circulating air hole (17) located above the first fan (14) and extending into the first slot (12). The first fan (14) is located below a side plate (53).

4. The thermal aging test chamber for cable testing according to claim 1, characterized in that: The housing (11) is bolted to a second fan (15) located inside the first slot (12), and an electric heating tube (16) is provided above the second fan (15).

5. A thermal aging test chamber for cable testing according to claim 1, characterized in that: A door (3) is provided on the front side of the first slot (12), and an observation window (4) is provided on the surface of the door (3). A control panel (2) is provided on the front side of the second slot (13).

6. A thermal aging test chamber for cable testing according to claim 2, characterized in that: The outer side of the spiral shaft (58) is provided with an external thread, and the inner side of the upper square plate (55) is provided with an internal thread hole that matches the external thread of the spiral shaft (58). The spiral shaft (58) and the square plate (55) are connected by a threaded drive.

7. A thermal aging test chamber for cable testing according to claim 2, characterized in that: The rear side of the disc (51) is fixedly connected to the inner wall of the first slot (12) by bolts, and the axis of the disc (51) is parallel to the depth direction of the first slot (12); the rear end of the round rod (52) is rotatably connected to the center position of the front end face of the disc (51), and the axis of the round rod (52) is collinear with the axis of the disc (51); a plurality of long plates (53) are evenly distributed along the outer peripheral wall of the round rod (52), and the length direction of the long plates (53) is consistent with the radial direction of the round rod (52).

8. A thermal aging test chamber for cable testing according to claim 4, characterized in that: The second fan (15) and the electric heating tube (16) are both located inside the first empty slot (12), and the second fan (15) is located directly below the electric heating tube (16); the outer peripheral wall of the second fan (15) is fixedly connected to the inner side wall of the first empty slot (12) by bolts, and the air outlet of the second fan (15) faces upward; the two ends of the electric heating tube (16) are respectively fixedly connected to the inner walls of the two sides opposite to the first empty slot (12) by brackets, and the axis of the electric heating tube (16) is aligned with the center of the air outlet of the second fan (15).

9. A thermal aging test chamber for cable testing according to claim 5, characterized in that: One side of the door (3) is rotatably connected to the front side of the box (11) via a hinge, and the other side of the door (3) is detachably connected to the front side of the box (11) via a door lock. When the door (3) is closed, the rear end face of the door (3) is in contact with the front groove edge of the first slot (12). The observation window (4) is embedded in the center of the panel of the door (3).

10. A thermal aging test chamber for cable testing according to claim 1, characterized in that: The two side plates (67) are symmetrically distributed on the left and right sides of the air outlet (18), and the lower end of the side plate (67) is welded and fixed perpendicularly to the upper surface of the box (11).

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