Multi-layer heat insulation composite box body for thermal stress test box

Abstract

The utility model relates to the technical field of thermal stress test boxes, in particular to a multilayer heat insulation composite box body for a thermal stress test box, which comprises a box body, the upper end and the back of the box body are respectively connected with a temperature control box and an air circulation control chamber, and the front end of the box body is provided with a box door. An outer box layer and an inner box layer which are arranged in a sleeved mode are arranged on the box body, a phase change heat insulation layer is arranged on an interlayer between the outer box layer and the inner box layer, and a phase change material chamber is arranged in the phase change heat insulation layer. According to the multi-layer heat insulation composite box body for the thermal stress test box, the phase change heat insulation layer is arranged between the two heat insulation layers, heat conduction treatment between the inner box layer and the phase change heat insulation layer can be carried out through the heat conduction connecting columns, heat preservation and heat insulation treatment is carried out through the phase change heat insulation layer, and heat loss of the thermal stress test box is reduced; meanwhile, when the temperature of the thermal stress test box is reduced, the stability of the test temperature can be ensured through reverse heating of the thermal stress test box, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of thermal stress test chambers, specifically a multi-layer thermal insulation composite chamber for thermal stress test chambers. Background Technology

[0002] A thermal stress test chamber is a device used to simulate the performance of materials or products under different temperature conditions. It is widely used in industries such as electronics, automotive, and aerospace to evaluate the durability and stability of materials or components under extreme temperature changes. Through rapid temperature changes (thermal shock) or prolonged isothermal treatment, thermal stress test chambers help identify potential design flaws and reliability issues in products. Thermal insulation is crucial for ensuring efficient equipment operation, improving testing accuracy, and protecting the operating environment. The insulation structure is primarily concentrated on the chamber's body to reduce heat loss or ingress, thereby maintaining the stability of the internal environment.

[0003] Existing thermal stress test chambers use insulation materials to separate internal and external temperatures, reducing heat loss and mitigating the impact of external temperatures. However, when the internal temperature is too high, a cooling structure is required, and subsequent heating is necessary, resulting in high energy consumption and insufficient energy efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-layer thermal insulation composite chamber for thermal stress test chambers, in order to solve the problem mentioned in the background art that the thermal insulation structure of current thermal stress test chambers on the market can perform efficient thermal insulation treatment, but when the temperature inside the chamber is too high, a cooling structure needs to be set up, and subsequent heating is required, which results in high energy consumption and insufficient energy saving of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer thermal insulation composite chamber for a thermal stress test chamber, comprising a main body, a temperature control chamber and an air circulation control chamber connected to the upper end and back of the main body respectively, and a door installed at the front end of the main body. The main body has an outer chamber layer and an inner chamber layer nested together, and a phase change insulation layer is provided between the outer chamber layer and the inner chamber layer. A phase change material chamber is provided inside the phase change insulation layer. An outer insulation layer and an inner insulation layer are respectively filled between the phase change insulation layer and the outer chamber layer and the inner chamber layer. Thermally conductive connecting columns that are evenly spaced and locked between the phase change insulation layer and the inner chamber layer are also provided on opposite sides of the inner insulation layer. An air insulation layer is provided inside the door, and transparent plates with sealing fit are provided on both sides of the air insulation layer.

[0006] Preferably, the upper and lower back of the main body of the box are respectively sealed and fixed with a circulating air intake channel and a circulating air outlet channel, and the circulating air outlet channel is provided with a heat insulation plate that is engaged with the circulating air intake channel and the circulating air outlet channel.

[0007] Preferably, the heating mechanism of the temperature control box is installed in the air circulation channel through the air circulation control chamber, and the heat insulation plate is located between the heating mechanism of the temperature control box and the air circulation control mechanism of the air circulation control chamber.

[0008] Preferably, the inner casing layer and the phase change insulation layer are provided with corresponding positioning protrusions, and the thermally conductive connecting post is locked between the positioning protrusions and welded to the outside of the inner casing layer.

[0009] Preferably, the phase change insulation layer is fitted with support members at its upper and lower ends, and a support member is also fitted between the phase change insulation layer and the outer casing layer.

[0010] Preferably, the length of the thermally conductive connecting column is greater than the distance between the inner box layer and the phase change insulation layer.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This thermal stress test chamber uses a multi-layer insulated composite chamber with a phase change insulation layer between two insulation layers. Heat conduction between the inner chamber layer and the phase change insulation layer can be achieved through heat-conducting connecting columns. The phase change insulation layer provides thermal insulation, reducing heat loss from the thermal stress test chamber. Furthermore, when the temperature of the thermal stress test chamber decreases, reverse heating can be used to ensure the stability of the test temperature, achieving energy saving. The multi-layer insulated composite chamber has positioning protrusions on the opposite side of the inner chamber layer and the phase change insulation layer, which can securely fasten and position the heat-conducting connecting columns and increase the heat exchange area. The multi-layer insulated composite chamber combines insulation materials and phase change materials, effectively insulating and reducing heat loss. Attached Figure Description

[0012] Figure 1 This is a front view of a multi-layer thermal insulation composite box for a thermal stress test chamber according to this utility model;

[0013] Figure 2 This is a side view of a multi-layer thermal insulation composite box for a thermal stress test chamber according to the present invention.

[0014] Figure 3 This is a top view of a multi-layer thermal insulation composite box for a thermal stress test chamber according to this utility model.

[0015] In the diagram: 1. Main body of the enclosure; 2. Outer enclosure layer; 3. Inner enclosure layer; 4. Outer insulation layer; 5. Phase change insulation layer; 6. Inner insulation layer; 7. Phase change material chamber; 8. Thermally conductive connecting column; 9. Support component; 10. Circulating air intake channel; 11. Positioning protrusion; 12. Circulating air outlet channel; 13. Temperature control box; 14. Enclosure door; 15. Transparent panel; 16. Air insulation layer; 17. Insulation board; 18. Air circulation control chamber. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: a multi-layer heat-insulating composite box for a thermal stress test chamber, including a main body 1. A temperature control box 13 and an air circulation control chamber 18 are respectively connected to the upper end and back of the main body 1. A door 14, fitted with a high-temperature resistant sealing ring, is hinged to the front end of the main body 1. An outer box layer 2 and an inner box layer 3 are nested on the main body 1. A phase change insulation layer 5 is provided between the outer box layer 2 and the inner box layer 3, and a phase change material chamber 7 is provided within the phase change insulation layer 5. A circulating air intake channel 10 and a circulating air outlet channel 12 are sealed and fixed through the upper and lower back of the main body 1, respectively. A heat insulation plate 17, which engages with the circulating air intake channel 10 and the circulating air outlet channel 12, is provided within the circulating air outlet channel 12. The air circulation intake channel 10 and air circulation outlet channel 12 are connected to the air circulation control mechanism installed in the air circulation control chamber 18 to circulate the air within the main body 1 of the enclosure, ensuring uniform temperature throughout the enclosure. The heating mechanism of the temperature control box 13 is connected to the air circulation intake channel 10 via the air circulation control chamber 18, and the heat insulation plate 17 is located between the heating mechanism of the temperature control box 13 and the air circulation control mechanism of the air circulation control chamber 18. This structure further separates the air circulation control chamber 18 from the main body 1 of the enclosure and the heating mechanism of the temperature control box 13 through the heat insulation plate 17, ensuring that the heat dissipation of the internal structure of the air circulation control chamber 18 does not affect the internal temperature of the main body 1 of the enclosure, thus ensuring stable operation of all parts of the structure. The temperature control box 13... Heating the intake air allows for the heating of the main body 1 of the enclosure, ensuring the set temperature is reached. An outer insulation layer 4 and an inner insulation layer 6 are respectively filled between the phase change insulation layer 5, the outer casing layer 2, and the inner casing layer 3. The inner insulation layer 6 has evenly spaced heat-conducting connecting posts 8 on both sides, positioned between the phase change insulation layer 5 and the inner casing layer 3. Positioning protrusions 11 are correspondingly positioned on the inner casing layer 3 and the phase change insulation layer 5, and the heat-conducting connecting posts 8 are positioned between these protrusions. The heat-conducting connecting posts 8 are welded to the outside of the inner casing layer 3. This structure connects the inner casing layer 3 and the phase change insulation layer 5 via the heat-conducting connecting posts 8, enabling heat conduction between them. The positioning protrusions 11 are used for the heat-conducting connecting posts 8. For reliable positioning, support members 9 are respectively engaged at the upper and lower ends of the phase change insulation layer 5, and support members 9 are also engaged between the phase change insulation layer 5 and the outer casing layer 2. This structure ensures the stability of the structure between the phase change insulation layer 5 and the outer casing layer 2, making the main body 1 of the enclosure stable. An air insulation layer 16 is provided inside the door 14, and transparent plates 15 with sealing fit are respectively provided on both sides of the air insulation layer 16, so that the door 14 also has a heat insulation function and a visibility function. The length of the heat-conducting connecting column 8 is greater than the distance between the inner casing layer 3 and the phase change insulation layer 5. This structure, through the setting of the positioning protrusion 11, can also increase the heat conduction area and achieve efficient heat exchange. Through the phase change material, heat can be effectively absorbed, heat loss can be reduced, and the purpose of heat preservation can be achieved, which is more energy-efficient.Simultaneously, when the internal temperature of the main chamber 1 decreases, the phase change material can be heated in the reverse direction, acting as a temperature buffer to ensure that the internal temperature of the main chamber 1 meets the test requirements.

[0018] Working Principle: When using the multi-layer insulated composite chamber of this thermal stress test chamber, the main body 1 of the chamber first forms a double-layer structure through an outer chamber layer 2 and an inner chamber layer 3. A phase change insulation layer 5 is positioned between the outer chamber layer 2 and the inner chamber layer 3 via a support member 9. Phase change material is filled into the phase change material chamber 7. An outer insulation layer 4 and an inner insulation layer 6 are respectively installed in the gaps between the phase change insulation layer 5 and the outer chamber layer 2 and the inner chamber layer 3, allowing the outer insulation layer 4 to isolate heat from the outside. Meanwhile, thermally conductive connecting columns 8 are evenly spaced on both sides of the inner insulation layer 6. Positioning protrusions 11 are installed at corresponding positions on the inner chamber layer 3 and the phase change insulation layer 5 to achieve the desired insulation effect. The reliable positioning between layer 3 and phase change insulation layer 5 ensures that heat exchange can be carried out between inner box layer 3 and phase change insulation layer 5 through heat-conducting connecting column 8. When the main body of the box is used in conjunction with the temperature control structure in temperature control box 13 and the air circulation mechanism in air circulation control chamber 18, the air in the circulation intake channel 10 can be heated. The air discharged from the circulation outlet channel 12 passes through phase change insulation layer 5, which can reduce heat loss. The box door 14 adopts a heat insulation structure composed of double-layer transparent plate 15 and air insulation layer 16. The heat insulation plate 17 is used to prevent the cooling of the internal structure of air circulation control chamber 18 from affecting the main body of the box, thereby completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-layer thermally insulated composite chamber for a thermal stress testing chamber, comprising a main body (1), characterized in that: The upper end and back of the main body (1) of the box are respectively connected to a temperature control box (13) and an air circulation control chamber (18), and a box door (14) is installed at the front end of the main body (1). The main body (1) of the box is provided with an outer box layer (2) and an inner box layer (3) nested together. A phase change heat insulation layer (5) is provided between the outer box layer (2) and the inner box layer (3), and a phase change material chamber (7) is provided inside the phase change heat insulation layer (5). An outer heat insulation layer (4) and an inner heat insulation layer (6) are respectively filled between the phase change heat insulation layer (5) and the outer box layer (2) and the inner box layer (3). A heat-conducting connecting column (8) is evenly spaced on both sides of the inner heat insulation layer (6) and is clamped between the phase change heat insulation layer (5) and the inner box layer (3). An air heat insulation layer (16) is provided inside the box door (14), and a transparent plate (15) with a sealing fit is provided on both sides of the air heat insulation layer (16).

2. The multi-layer thermal insulation composite chamber for a thermal stress testing chamber according to claim 1, characterized in that: The main body of the box (1) has a circulating air intake channel (10) and a circulating air outlet channel (12) sealed and fixed on the upper and lower back respectively, and the circulating air outlet channel (12) is provided with a heat insulation plate (17) that is engaged with the circulating air intake channel (10) and the circulating air outlet channel (12).

3. The multi-layer thermal insulation composite chamber for a thermal stress testing chamber according to claim 2, characterized in that: The heating mechanism of the temperature control box (13) is set in the air circulation channel (10) through the air circulation control chamber (18), and the heat insulation plate (17) is located between the heating mechanism of the temperature control box (13) and the air circulation control mechanism of the air circulation control chamber (18).

4. The multi-layer thermal insulation composite chamber for a thermal stress testing chamber according to claim 1, characterized in that: The inner box layer (3) and the phase change heat insulation layer (5) are provided with corresponding positioning protrusions (11), and the heat-conducting connecting column (8) is stuck between the positioning protrusions (11), and the heat-conducting connecting column (8) is welded and fixed to the outside of the inner box layer (3).

5. The multi-layer thermal insulation composite chamber for a thermal stress testing chamber according to claim 1, characterized in that: The phase change insulation layer (5) has support members (9) engaged at its upper and lower ends, and support members (9) are also engaged between the phase change insulation layer (5) and the outer casing layer (2).

6. The multi-layer thermal insulation composite chamber for a thermal stress testing chamber according to claim 1, characterized in that: The length of the thermally conductive connecting column (8) is greater than the distance between the inner box layer (3) and the phase change insulation layer (5).

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