A thermal shock test chamber

Abstract

This utility model discloses a thermal shock test chamber, which achieves rapid switching between high and low temperature environments for the test items through optimized structural design. The test chamber consists of a chamber body, a cooling chamber, and a heating chamber, which are separated by a barrier layer. A movable horizontal plate is installed in the heating chamber, and the slots on it can be controlled to move longitudinally by a drive component, realizing the alternating exposure of the items between hot and cold environments. The inner walls of the heating chamber and the cooling chamber are covered with insulation layers to reduce heat transfer and ensure temperature stability. The control panel is electrically connected to the temperature sensor and the thermal cycling system, which can monitor and adjust the test conditions in real time. The electric push rod is located on the outside of the chamber body to avoid the influence of extreme temperatures in the heating and cooling chambers, significantly extending the service life, while improving the stability and reliability of the test chamber, and enhancing the test efficiency and accuracy. It has high practicality and economy.

Description

Technical Field

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

[0002] Thermal shock test chambers are essential testing equipment in the metal, plastic, rubber, and electronics industries. They are used to test the degree to which material structures or composite materials can withstand continuous exposure to extremely high and low temperatures in an instant, allowing for the detection of chemical changes or physical damage to samples caused by thermal expansion and contraction in the shortest possible time.

[0003] Utility model patent CN210401114U discloses a thermal shock test chamber, which includes a heating chamber inside a protective shell, and a ceramic heating tube inside the heating chamber. A first temperature probe is provided on the top of the heating chamber, a barrier layer is provided on the top of the heating chamber, and a freezing chamber is provided on the top of the barrier layer. A second temperature probe is provided inside the freezing chamber, and an electric push rod is provided on the top of the inside of the freezing chamber. The output end of the electric push rod is provided with a placement seat.

[0004] This invention uses an electric push rod to move back and forth between the freezing chamber and the heating chamber to achieve thermal shock. However, placing the electric push rod, which is used for displacement, inside the freezing chamber will cause the lubrication performance of the electric push rod to decrease and the material to catalyze over time, which will easily cause damage to the electric push rod, thereby increasing the test cost. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a thermal shock test chamber, the purpose of which is to solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A thermal shock test chamber includes a chamber body. A cooling chamber is located on the upper side of the chamber body and is connected to an external cold circulation system. A heating chamber is located on the lower side of the chamber body and is connected to an external heat circulation system. The cooling chamber and the heating chamber are separated by a barrier layer. A horizontally movable plate is located inside the heating chamber. A driving assembly is located outside the chamber body corresponding to the movable plate, allowing it to slide longitudinally. A placement groove is located in the middle of the upper side of the movable plate. A clearance hole is located in the barrier layer corresponding to the placement groove. A sealing plate is located at the top of the placement groove corresponding to the clearance hole. When the driving assembly drives the movable plate downwards until the placement groove is located inside the heating chamber, the sealing plate seals the clearance hole.

[0008] Preferably, the drive assembly includes an electric push rod disposed on the top of the housing, the top of the electric push rod is provided with a first connecting rod laterally, the left and right ends of the first connecting rod are respectively provided with second connecting rods vertically, and the second connecting rods extend downward to the left and right ends of the movable cross plate and are fixedly connected thereto.

[0009] Preferably, the second connecting plate is located inside the left and right side walls of the housing and can slide longitudinally within the left and right side walls of the housing, and a limiting groove is longitudinally formed in the heating cavity corresponding to the second connecting rod.

[0010] Preferably, the second connecting rod has a connecting block at one end located in the limiting groove, and the moving horizontal plate has a fixing block that fits against the box at the corresponding connecting block. The connecting block can be fixed to the fixing block by bolts. A maintenance port is opened on the front side of the box at the corresponding moving horizontal plate, and a cover plate is hinged to the maintenance port.

[0011] Preferably, the inner walls of the heating chamber and the cooling chamber are respectively provided with heat insulation layers.

[0012] Preferably, the vertical distance between the bottom of the placement groove and the moving horizontal plate is consistent with the thickness of the barrier layer. When the moving horizontal plate moves upward to fit the bottom side of the barrier layer, the bottom of the placement groove and the upper side of the barrier layer are on the same horizontal plane.

[0013] Preferably, the front side of the housing is also provided with a control panel, and temperature sensors are respectively provided in the heating chamber and the cooling chamber. The control panel is electrically connected to the temperature sensors, the external heat circulation system and the external cold circulation system.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model provides a thermal shock test chamber. An electric push rod located at the top of the chamber moves longitudinally, driving a moving horizontal plate to move back and forth between the heating and cooling chambers. This allows objects placed in the grooves to undergo thermal shock testing. During this process, the electric push rod is located outside the chamber, preventing it from being affected by either the heating or cooling chambers, thus extending its service life. Simultaneously, a second connecting rod is located inside the side wall of the chamber, preventing the hot airflow in the heating chamber from merging with the cold airflow in the cooling chamber during longitudinal movement, improving the test chamber's effectiveness. Furthermore, with the control panel and temperature sensor, the test temperature can be adjusted in real time, broadening its applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a thermal shock test chamber according to the present invention;

[0017] Figure 2This is a schematic diagram of the internal structure of a thermal shock test chamber according to the present invention;

[0018] Figure 3 This is a schematic diagram of the movable horizontal plate and placement groove structure of a thermal shock test chamber according to this utility model.

[0019] In the diagram: 1. Housing; 2. Cooling chamber; 3. Heating chamber; 4. Barrier layer; 5. Moving horizontal plate; 6. Drive assembly; 61. Electric push rod; 62. First connecting rod; 63. Second connecting rod; 7. Placement slot; 8. Clearance hole; 9. Sealing plate; 10. Limiting slide; 11. Connecting block; 12. Fixing block; 13. Maintenance port; 14. Cover plate; 15. Insulation layer; 16. Control panel; 17. Temperature sensor. Detailed Implementation

[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] Please see Figure 1-3 This application proposes a thermal shock test chamber, which includes a chamber body 1. A cooling chamber 2 is provided on the upper side of the chamber body 1. The cooling chamber 2 is connected to an external cold circulation system to provide a low-temperature environment. A heating chamber 3 is provided on the lower side of the chamber body 1. The heating chamber 3 is connected to an external heat circulation system to provide a high-temperature environment. The cooling chamber 2 and the heating chamber 3 are separated by a barrier layer 4 to prevent mutual interference between the cold and hot airflows.

[0022] A horizontally movable plate 5 is provided inside the heating chamber 3. A placement slot 7 is provided in the middle of the upper side of the movable plate 5 for placing the item to be tested. A drive assembly 6 is provided outside the chamber 1 for driving the movable plate 5 to slide longitudinally. A clearance hole 8 is provided on the barrier layer 4 for the placement slot 7 to move longitudinally. When the movable plate 5 moves upward, the item in the placement slot 7 can enter the cooling chamber 2 through the clearance hole 8 for low-temperature testing; when the movable plate 5 moves downward, the item in the placement slot 7 can enter the heating chamber 3 through the clearance hole 8 for high-temperature testing. The movement of the movable plate 5 is precisely controlled by the drive assembly 6 to ensure the stability and repeatability of the testing process.

[0023] Furthermore, the drive assembly 6 includes an electric push rod 61 located on the top of the housing 1. The top of the electric push rod 61 is provided with a first connecting rod 62 horizontally. The left and right ends of the first connecting rod 62 are respectively provided with second connecting rods 63 vertically. The second connecting rods 63 extend downward to the left and right ends of the moving horizontal plate 5 and are fixedly connected thereto. This design allows the electric push rod 61 to precisely control the longitudinal movement of the moving horizontal plate 5 through the first connecting rod 62 and the second connecting rod 63.

[0024] Furthermore, the second connecting rod 63 is located inside the left and right side walls of the housing 1 and can slide longitudinally within the left and right side walls of the housing 1. A limiting groove 10 is longitudinally opened in the heating cavity 3 corresponding to the second connecting rod 63. The design of the limiting groove 10 ensures the stability of the second connecting rod 63 during movement and prevents it from shifting during movement. At the same time, this setting avoids the convergence of hot and cold air during longitudinal movement.

[0025] To further improve the stability of the moving horizontal plate 5, a connecting block 11 is provided at one end of the second connecting rod 63 located in the limiting slide groove 10. A fixing block 12 is provided at the corresponding position of the moving horizontal plate 5 to fit with the connecting block 11. The connecting block 11 can be fixed to the fixing block 12 by bolts. This design makes the connection between the moving horizontal plate 5 and the second connecting rod 63 more secure, and at the same time facilitates disassembly and maintenance.

[0026] Meanwhile, a maintenance port 13 is provided on the front side of the housing 1 corresponding to the movable horizontal plate 5, and a cover plate 14 is hinged to the maintenance port 13. The design of the maintenance port 13 facilitates the maintenance and repair of the movable horizontal plate 5 and the drive assembly 6, while the cover plate 14 ensures the airtightness of the housing 1.

[0027] To improve the insulation effect of the test chamber, insulation layers 15 are respectively attached to the inner walls of the heating chamber 3 and the cooling chamber 2. The insulation layers 15 can effectively reduce heat transfer, ensure the temperature stability in the heating chamber 3 and the cooling chamber 2, and improve the accuracy of the test.

[0028] Meanwhile, the vertical distance between the bottom of the placement slot 7 and the moving horizontal plate 5 is consistent with the thickness of the barrier layer 4. When the moving horizontal plate 5 moves upward to fit the bottom side of the barrier layer 4, the bottom of the placement slot 7 and the upper side of the barrier layer 4 are on the same horizontal plane. This design ensures that when the placement slot 7 enters the cooling chamber 2, the bottom of the placement slot 7 can effectively seal the clearance hole 8, preventing the convergence of hot and cold air currents.

[0029] Furthermore, a control panel 16 is also provided on the front side of the chamber 1. The control panel 16 is electrically connected to the temperature sensors 17 in the heating chamber 3 and the cooling chamber 2, as well as the external thermal circulation system and the external cold circulation system. Through the control panel 16, the operator can monitor and adjust the temperature inside the test chamber in real time to ensure the accuracy and stability of the test conditions.

[0030] When using this thermal shock test chamber, the item to be tested is first placed in the placement slot 7 of the moving horizontal plate 5. The required thermal shock test parameters, including temperature, time, and number of cycles, are set via the control panel 16. The electric push rod 61 drives the moving horizontal plate 5 to reciprocate between the heating chamber 3 and the cooling chamber 2 according to the set parameters, causing the item in the placement slot 7 to be alternately exposed to high and low temperature environments, thus completing the thermal shock test. The temperature sensor 17 monitors the temperature in the heating chamber 3 and the cooling chamber 2 in real time and feeds the data back to the control panel 16. The operator can adjust the test parameters as needed.

[0031] The external cold circulation system, external heat circulation system, control panel 16, and temperature sensor 17 mentioned above, as well as their connection methods and control methods, are all existing technologies and will not be described in detail here.

[0032] In summary, the thermal shock test chamber of this invention can effectively meet the requirements of thermal shock testing. Through reasonable structural design, it realizes rapid switching between high and low temperature environments for the test items, improving test efficiency and accuracy. The design of electric push rod 61 and limiting slide 10 ensures stable movement of the moving cross plate 5. The setting of insulation layer 15 and temperature sensor 17 further improves the performance and reliability of the test chamber. At the same time, the electric push rod 61 is located on the outside of the chamber 1, so it is not affected by the heating chamber 3 or the cooling chamber 2, thereby improving its service life and making it highly practical.

[0033] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] 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, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold and hot impact test chamber, comprising a chamber body (1), a refrigeration cavity (2) is formed in the upper side of the chamber body (1), a heating cavity (3) is formed in the lower side of the chamber body (1), a cold cycle system is communicated with the outside through the refrigeration cavity (2), a hot cycle system is communicated with the outside through the heating cavity (3), and the refrigeration cavity (2) and the heating cavity (3) are separated by a separation layer (4), characterized in that, The heating chamber (3) is provided with a horizontally movable horizontal plate (5). The box body (1) is provided with a driving component (6) that can drive the horizontal plate (5) to slide longitudinally. The middle of the upper side of the movable horizontal plate (5) is provided with a placement groove (7). The barrier layer (4) is provided with a clearance hole (8) corresponding to the placement groove (7). The top of the placement groove (7) is provided with a sealing plate (9) corresponding to the clearance hole (8). When the driving component (6) drives the movable horizontal plate (5) to move down to the placement groove (7) and it is located in the heating chamber (3), the sealing plate (9) seals the clearance hole (8).

2. The cold thermal shock test chamber of claim 1, wherein, The drive assembly (6) includes an electric push rod (61) located on the top of the housing (1). The top of the electric push rod (61) is provided with a first connecting rod (62) horizontally. The left and right ends of the first connecting rod (62) are respectively provided with second connecting rods (63) vertically. The second connecting rods (63) extend downward to the left and right ends of the movable horizontal plate (5) and are fixedly connected thereto.

3. A cold thermal shock test chamber as claimed in claim 2, wherein, The second connecting rod (63) is located inside the left and right side walls of the box (1) and can slide longitudinally inside the left and right side walls of the box (1). A limiting groove (10) is longitudinally opened in the heating cavity (3) corresponding to the second connecting rod (63).

4. A thermal shock test chamber according to claim 3, characterized in that, The second connecting rod (63) is provided with a connecting block (11) at one end in the limiting slide groove (10). The moving horizontal plate (5) is provided with a fixing block (12) that fits against the box at the corresponding position of the connecting block (11). The connecting block (11) can be fixed to the fixing block (12) by bolts. The front side of the box (1) is provided with a maintenance port (13) corresponding to the moving horizontal plate (5). A cover plate (14) is hinged to the maintenance port (13).

5. A thermal shock test chamber according to claim 1, characterized in that, The inner walls of the heating chamber (3) and the cooling chamber (2) are respectively provided with heat insulation layers (15).

6. A thermal shock test chamber according to claim 1, characterized in that, The vertical distance between the bottom of the placement groove (7) and the moving horizontal plate (5) is consistent with the thickness of the barrier layer (4). When the moving horizontal plate (5) moves upward to fit the bottom side of the barrier layer (4), the bottom of the placement groove (7) and the upper side of the barrier layer (4) are on the same horizontal plane.

7. A thermal shock test chamber according to any one of claims 1-6, characterized in that, The front side of the housing (1) is also provided with a control panel (16), and the heating chamber (3) and the cooling chamber (2) are respectively provided with temperature sensors (17). The control panel (16) is electrically connected to the temperature sensors (17), the external heat circulation system and the external cold circulation system.

Images