Door and window heat preservation performance detection device

Abstract

The utility model belongs to door and window quality detection technical field, specifically provide a door and window heat preservation performance detection device, including detection box, heat -insulating clamp plate, clamping drive mechanism, refrigeration assembly, heating assembly and temperature detection element, the accommodating cavity of detection box is divided into two chambers through the heat insulation board of middle, temperature detection element is used for real -time detection temperature of corresponding position. Refrigeration assembly and heating assembly are installed to two chambers respectively. Clamping drive mechanism can drive two heat -insulating clamp plates to move, make two heat -insulating clamp plates can adhere to the left and right sides of test piece. Two heat -insulating clamp plates and mounting port cooperate together, can carry out clamping fixation to the bottom and both sides of test piece, and heat -insulating clamp plate slidingly arranged, can adapt to the door and window test piece of different length size. Such setting, only need to cut the heat preservation board of appropriate size to seal up the position between the top of test piece and the top wall of mounting port when using, can reduce the consumption of heat preservation board.

Description

Technical Field

[0001] This application belongs to the field of door and window quality testing technology, specifically a door and window thermal insulation performance testing device. Background Technology

[0002] Doors and windows are one of the basic units of a building envelope, and their thermal insulation performance affects the energy consumption of indoor heating and cooling equipment and indoor comfort. Current technology uses a calibrated hot box method to test the heat transfer coefficient of building exterior doors and windows. The testing principle is based on steady-state heat transfer. A hot box is placed on one side of the specimen to simulate the indoor temperature conditions of a heated building in winter, while a cold box is placed on the other side to simulate the outdoor temperature and airflow velocity in winter. The gaps in the specimen are sealed, and under stable air temperature, airflow velocity, and thermal radiation conditions on both sides of the specimen, the heat output per unit time of the heating device in the hot box is measured. Subtracting the heat loss through the hot box walls, specimen frame, filler plate, specimen, and the edges of the filler plate, and dividing by the product of the specimen area and the temperature difference between the two sides, the heat transfer coefficient K value of the specimen is obtained.

[0003] The above testing method is based on a door and window insulation performance testing device. This device is divided into a hot chamber and a cold chamber by a central partition with an installation opening. When installing the door and window test specimens, the door or window is placed centered in the installation opening, ensuring the bottom of the door or window fits snugly against the bottom wall of the opening. Foam insulation boards of different sizes are cut to fill the gaps between the door / window and the installation opening on the top, left, and right sides. Because different models of doors and windows have different dimensions, the size and shape of the space to be filled also vary. Each test requires cutting appropriately sized foam insulation boards, and the foam insulation boards removed after testing cannot be reused, resulting in significant waste. Utility Model Content

[0004] Based on the above-mentioned technical problems, this application provides a door and window thermal insulation performance testing device to solve the technical problem that the space required to be filled by foam insulation boards in the prior art is large and wasteful.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a door and window thermal insulation performance testing device, comprising: The testing box has a receiving cavity, and a heat insulation plate is provided in the middle of the receiving cavity. The heat insulation plate has an installation opening in the middle that extends through its own thickness direction. Two heat insulation plates are disposed opposite each other on both sides of the mounting opening, with the side of the heat insulation plate adjacent to the heat insulation plate in contact with the surface of the heat insulation plate; A clamping drive mechanism is provided in the receiving cavity to drive the two heat-insulating plates to move closer or further apart from each other, forming a clamping space between the two heat-insulating plates for accommodating the specimen. A refrigeration component is disposed within the receiving cavity and located on one side of the heat insulation plate; A heating component is disposed within the receiving cavity and located on the side of the heat insulation plate opposite to the cooling component; and Multiple temperature sensing elements are respectively disposed in the receiving cavity and are arranged opposite to the heat insulation plate.

[0006] In one possible implementation, the heat insulation plate is located in the middle of the receiving cavity, and the chambers on both sides of the heat insulation plate are defined as a hot chamber and a cold chamber, respectively. The refrigeration component is located in the cold chamber, and the heating component is located in the hot chamber. A dehumidifier is also provided in the hot chamber.

[0007] In one possible implementation, the top and bottom walls of the receiving cavity are respectively provided with grooves on one side of the heat insulation plate, and the grooves extend along the length of the heat insulation plate; the top of the heat insulation clamp slides in engagement with the upper groove, and the bottom of the heat insulation clamp slides in engagement with the lower groove.

[0008] In one possible implementation, the heat-insulating clamp has a clamping portion extending into the mounting port, the inner wall of the mounting port and the clamping portion together forming a clamping space for accommodating the specimen.

[0009] In one possible implementation, the top and bottom of the heat insulation clamp are respectively provided with adjustment holes, the adjustment holes extending along the length of the heat insulation clamp, and the adjustment holes are threaded holes; one of the heat insulation clamps is defined as the first clamp, and the other heat insulation clamp is defined as the second clamp; the clamping drive mechanism includes: Two lead screws are disposed vertically opposite each other within the receiving cavity. One lead screw is threadedly engaged with the first clamping plate and slidably engaged with the second clamping plate. The other lead screw is slidably engaged with the first clamping plate and threadedly engaged with the second clamping plate. Two drive motors are used to drive the two lead screws to rotate around their respective central axes.

[0010] In one possible implementation, the window and door insulation performance testing device further includes two guide plates, which are disposed opposite to each other on both sides of the insulation plate, and the area of ​​the guide plates is greater than or equal to the area of ​​the mounting opening; the temperature detection element is disposed in the space between the guide plates and the insulation plate.

[0011] In one possible implementation, the bottom of the deflector is provided with casters.

[0012] In one possible implementation, the testing box has an insulation layer within its wall thickness range, and the bottom of the testing box is provided with support legs.

[0013] In one possible implementation, the refrigeration component is a refrigeration unit, and the heating component is an electric heater.

[0014] In one possible implementation, multiple temperature sensing elements located on the same side of the insulation plate are arranged in a rectangular array.

[0015] Compared with the prior art, the beneficial effects of the door and window thermal insulation performance testing device provided in this application are: The window and door insulation performance testing device provided in this application includes a testing chamber, thermal insulation plates, a clamping drive mechanism, a refrigeration component, a heating component, and a temperature detection element. The receiving cavity of the testing chamber is divided into two chambers by a central thermal insulation plate. The temperature detection element is used to detect the temperature at the corresponding location in real time. The thermal insulation plate has an installation opening for accommodating the test specimen, with the bottom of the specimen fitting against the bottom wall of the installation opening. The refrigeration and heating components are installed in the two chambers respectively for refrigeration and heating, forming symmetrical cold and hot spaces about the thermal insulation plate and the test specimen. The clamping drive mechanism can drive the two thermal insulation plates to move, allowing them to fit against the left and right sides of the test specimen. The two thermal insulation plates and the installation opening work together to clamp and fix the bottom and sides of the test specimen. The thermal insulation plates are slidable to accommodate window and door test specimens of different lengths. With this design, only appropriately sized thermal insulation plates need to be cut to seal the space between the top of the test specimen and the top wall of the installation opening during use, reducing the consumption of thermal insulation plates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A perspective view of the door and window thermal insulation performance testing device provided in the embodiments of this application; Figure 2 A plan sectional view of the door and window thermal insulation performance testing device provided in the embodiments of this application; Figure 3 A perspective sectional view of the door and window thermal insulation performance testing device provided in the embodiments of this application; Figure 4 A perspective sectional view of the window and door thermal insulation performance testing device provided in this application embodiment without the test specimen installed; Figure 5 A perspective sectional view of the door and window thermal insulation performance testing device provided in this application embodiment when holding a test specimen; Figure 6 This is a schematic diagram of the structure of the heat insulation plate in the embodiment of this application; Explanation of reference numerals in the attached figures: 10. Testing box; 11. Insulation board; 111. Mounting port; 12. Slide groove; 13. Support leg; 20. Insulation clamp; 21. Clamping part; 22. Adjustment hole; 30. Clamping drive mechanism; 31. Lead screw; 32. Drive motor; 40. Refrigeration component; 50. Heating component; 60. Temperature detection element; 70. Dehumidifier; 80. Guide plate; 81. Casters; 90. Cut insulation board; 100. Specimen; Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] Please refer to the following: Figures 1 to 6 The following describes the door and window thermal insulation performance testing device provided in the embodiments of this application.

[0024] Please see Figures 1 to 6 The door and window thermal insulation performance testing device provided in this application includes a testing box 10, a thermal insulation plate 20, a clamping drive mechanism 30, a refrigeration component 40, a heating component 50, and a temperature detection element 60. The testing chamber 10 has a receiving cavity, in the middle of which is a heat insulation plate 11. The heat insulation plate 11 has a mounting opening 111 extending through its own thickness direction in the middle. Two heat insulation clamps 20 are arranged opposite each other on both sides of the mounting opening 111, with the side of the heat insulation clamp 20 adjacent to the heat insulation plate 11 in contact with the surface of the heat insulation plate 11. A clamping drive mechanism 30 is located in the receiving cavity and is used to drive the two heat insulation clamps 20 to move closer or further away from each other, forming a clamping space between the two heat insulation clamps 20 for accommodating the test specimen 100. A cooling component 40 is located in the receiving cavity and is situated on one side of the heat insulation plate 11. A heating component 50 is located in the receiving cavity and is situated on the side of the heat insulation plate 11 away from the cooling component 40. Multiple temperature sensing elements 60 are respectively located in the receiving cavity and are arranged opposite to the heat insulation plate 11.

[0025] Compared with the prior art, the beneficial effects of the door and window thermal insulation performance testing device provided in this application embodiment are: The window and door insulation performance testing device provided in this embodiment includes a testing box 10, heat insulation plates 20, a clamping drive mechanism 30, a cooling component 40, a heating component 50, and a temperature detection element 60. The receiving cavity of the testing box 10 is divided into two chambers by a central heat insulation plate 11. The temperature detection element 60 is used to detect the temperature at the corresponding location in real time. The heat insulation plate 11 has an installation port 111 for accommodating a test specimen 100, and the bottom of the test specimen 100 is attached to the bottom wall of the installation port 111. The cooling component 40 and the heating component 50 are respectively installed in the two chambers for cooling and heating, forming symmetrical cold and hot spaces about the heat insulation plate 11 and the test specimen 100. The clamping drive mechanism 30 can drive the two heat insulation plates 20 to move, so that the two heat insulation plates 20 can fit against the left and right sides of the test specimen 100. The two insulating clamps 20 and the mounting opening 111 work together to clamp and fix the bottom and sides of the specimen 100. The insulating clamps 20 are slidable to accommodate door and window specimens 100 of different lengths. With this design, only a suitable size of insulation board 90 needs to be cut to seal the space between the top of the specimen 100 and the top wall of the mounting opening 111, reducing the consumption of cut insulation board 90.

[0026] The testing box 10 is usually a square box with an internal cavity width (i.e., the length of the specimen 100 or the slide 12) of not less than 2.2m and a height of not less than 2.5m. The depth of the space on both sides of the heat insulation plate 11 is not less than 2m.

[0027] To reduce heat loss, the inner wall of the cavity of the testing chamber 10 should be equipped with an insulation layer made of thermal insulation material. The insulation layer, insulation board 11, and insulation clamping plate 20 should all be made of existing thermal insulation materials, such as polystyrene insulation board or other composite boards, and their thermal resistance should not be less than 3.5 m²·K / W. There are no restrictions on the specific thickness of the insulation layer, insulation board 11, and insulation clamping plate 20; users can set them according to their needs. The bottom of the testing chamber 10 is equipped with support legs 13 to support the testing chamber 10 at an appropriate height from the ground.

[0028] Multiple temperature sensing elements 60 are arranged opposite to the heat insulation plate 11, with multiple temperature sensors, for example, nine, on each side. The temperature sensing elements 60 are existing temperature sensors, and they should be positioned adjacent to the specimen 100 and the heat insulation plate 11. Multiple temperature sensors on the same side can be arranged in a circular or rectangular array. The temperature sensors can be attached to the surface of the specimen 100 or the heat insulation plate 11 using stickers, or they can be fixed to the space between the heat insulation plate 11 and the flow guide plate 80 (described below) using a bracket structure. The bracket structure can be made of plastic or metal rods, assembled using screws or other methods, and only needs to be able to mount the temperature sensors; its specific shape and size are not required.

[0029] The refrigeration component 40 can be a compressor refrigeration unit or other refrigeration equipment, and the heating component 50 can be an electric heater. The refrigeration unit is used to maintain the temperature on one side of the heat insulation plate 11 at -19℃ to -21℃, and the heating component 50 is used to maintain the temperature on the other side of the heat insulation plate 11 at 19℃ to 21℃.

[0030] The insulation board 11 has an installation opening 111, which is usually square. The length and height of the installation opening 111 are larger than the dimensions of the door and window specimen 100 to be tested. The bottom wall of the installation opening 111 should be at least 200mm above the bottom wall of the receiving cavity.

[0031] Two heat-insulating clamps 20 are positioned opposite each other about the mounting port 111. A clamping drive mechanism 30 drives the two heat-insulating clamps 20 to move closer or further apart, clamping and limiting the two sides of the specimen 100. The clamping drive mechanism 30 can be a cylinder, electric push rod, or other driving component found in the prior art, or it can be a gear and rack mechanism driven by a motor. The output shaft of the motor is equipped with a gear, and the heat-insulating clamps 20 have racks along their length, with the racks and gears meshing for transmission.

[0032] When installing the specimen 100, first place the specimen 100 centered on the bottom wall of the mounting opening 111, ensuring the bottom of the specimen 100 fits snugly against the bottom wall of the mounting opening 111. Then, control the clamping drive mechanism 30 to bring the two insulation plates 20 together towards the center, clamping the specimen 100 on the left and right sides respectively. Next, measure the dimensions of the top of the specimen 100 and the top wall of the mounting opening 111, and cut foam insulation boards 90 of corresponding dimensions to fill the gaps. Finally, use foam sealant, sealing stickers, etc., to seal the gaps between the insulation plates 20 and 11, between the insulation plates 20 and the specimen 100, between the insulation boards 11 and the specimen 100, and between the foam insulation board 90 and either the insulation plates 20 or 11, to prevent air leakage.

[0033] After specimen 100 is installed and fixed, temperature sensing element 60 is installed using adhesive or bracket fixation. Cooling assembly 40 and heating assembly 50 are then activated, and testing is conducted according to the operational requirements of the testing method. After completion, the thermal insulation coefficient K value of the doors and windows is calculated based on the test results. It should be noted that the testing and calculation methods for the thermal insulation performance of doors and windows are existing technologies and will not be elaborated upon here.

[0034] Please see Figure 2 and Figure 3 The chambers located on both sides of the insulation plate 11 are defined as a hot chamber and a cold chamber, respectively. The refrigeration component 40 is located in the cold chamber, and the heating component 50 is located in the hot chamber. To prevent condensation from forming on the side of the specimen 100 and the insulation plate 11 adjacent to the hot chamber, a dehumidifier 70 can be installed in the hot chamber. The dehumidifier 70 can be any commercially available indoor dehumidification equipment, and its specific specifications and models are not limited.

[0035] The heat insulation plate 20 can move left and right relative to the heat insulation plate 11. The surfaces of the heat insulation plate 20 and the heat insulation plate 11 are in contact. The gap between the heat insulation plate 20 and the heat insulation plate 11 should not be too large, otherwise it will cause air leakage and affect the accuracy of the test results.

[0036] To improve the positional accuracy of the insulation clamp 20 and prevent large displacements during movement that could lead to a larger gap between it and the insulation board 11, please refer to... Figure 2 and Figure 3 The top and bottom walls of the cavity are respectively provided with sliding grooves 12 on one side of the heat insulation plate 11, and the sliding grooves 12 extend along the length of the heat insulation plate 11; the top of the heat insulation plate 20 is slidably engaged with the upper sliding groove 12, and the bottom of the heat insulation plate 20 is slidably engaged with the lower sliding groove 12.

[0037] Considering that the height of the insulation panel 20 is usually over 2m, two vertically opposite sliding grooves 12 are provided to improve the stability of the insulation panel 20 during movement. The shape of the sliding groove 12 can be common, such as square, dovetail, T-shaped, or arc-shaped.

[0038] To further improve the sealing performance of the contact surfaces between the heat insulation plate 20 and the heat insulation board 11, protrusions and grooves can be provided on the side where the heat insulation plate 20 and the heat insulation board 11 are in contact with each other. This transforms the original planar contact surface into a tortuous contact surface, resulting in a stronger sealing effect. Specifically, grooves can be formed on the side of the heat insulation plate 20 where it is in contact with the heat insulation board 11. The grooves are arranged along the length of the slide groove 12, with multiple grooves evenly spaced from top to bottom. On the side of the heat insulation board 11 where it is in contact with the heat insulation plate 20, protrusions corresponding to the grooves are provided. The protrusions are elongated block structures parallel to the slide groove 12, and the protrusions and corresponding slide grooves 12 slide in a sliding fit.

[0039] Please see Figure 3 and Figure 6 In order to enable the bottom wall of the heat insulation plate 20 and the mounting opening 111 to simultaneously clamp the side of the door and window specimen 100, the heat insulation plate 20 has a clamping part 21 extending into the mounting opening 111. The inner wall of the mounting opening 111 and the clamping part 21 together enclose a clamping space for accommodating the specimen 100.

[0040] It should be noted that the thickness of the insulation board 11 and the insulation clamp 20 should be at least greater than the thickness of the door and window test piece 100, specifically, it can be two or three times or more the thickness of the door and window test piece 100.

[0041] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The top and bottom of the heat insulation plate 20 are respectively provided with adjustment holes 22, which are threaded holes that extend along the length of the heat insulation plate 20. One of the heat insulation plates 20 is defined as the first plate, and the other heat insulation plate 20 is defined as the second plate.

[0042] The clamping drive mechanism 30 includes lead screws 31 and drive motors 32. Two lead screws 31 are arranged vertically opposite each other in the receiving cavity. One lead screw 31 is threadedly engaged with the first clamping plate and slidably engaged with the second clamping plate. The other lead screw 31 is slidably engaged with the first clamping plate and threadedly engaged with the second clamping plate. Two drive motors 32 are used to drive the two lead screws 31 to rotate around their respective central axes.

[0043] In this embodiment, the horizontal position of the two heat-insulating clamping plates 20 is adjusted using a lead screw 31 and a drive motor 32. When the first clamping plate moves, the lead screw 31 threaded with it acts as a driving element, while the lead screw 31 slidably engaged with it acts as a guide rod, providing guidance. Similarly, when the second clamping plate moves, the lead screw 31 threaded with it acts as a driving element, driving the second clamping plate to move along the slide groove 12, while the lead screw 31 slidably engaged with it acts as a guide rod, providing guidance during movement.

[0044] Considering that the cooling component 40 or the heating component 50 may generate hot or cold airflows during operation, to prevent the airflow from directly blowing onto the surface of the specimen 100 and causing a large temperature difference, please refer to [the relevant documentation / reference]. Figure 2 and Figure 3 The window and door insulation performance testing device also includes two guide plates 80, which are positioned opposite each other on both sides of the insulation plate 11, and the area of ​​the guide plates 80 is greater than or equal to the area of ​​the mounting opening 111; the temperature detection element 60 is located in the space between the guide plates 80 and the insulation plate 11. The heating component 50 and the cooling component 40 are respectively located on the side of the corresponding guide plate 80 away from the test specimen 100.

[0045] For easier movement of the deflector 80, please refer to [link / reference]. Figure 2 and Figure 3 The bottom of the guide plate 80 is equipped with a movable wheel 81.

[0046] The distance between the deflector plate 80 and the specimen 100 can be 150-200mm. The function of the deflector plate 80 is to prevent direct airflow and ensure that a stable and uniform temperature field is formed between the door and window specimen 100 and the deflector plate 80, so as to obtain accurate thermal insulation performance test data.

[0047] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for testing the thermal insulation performance of doors and windows, characterized in that, include: The test box (10) has a receiving cavity, and a heat insulation plate (11) is provided in the middle of the receiving cavity. The heat insulation plate (11) has an installation port (111) that runs through its own thickness direction in the middle. Two heat insulation plates (20) are disposed opposite each other on both sides of the mounting opening (111), and the side of the heat insulation plate (20) adjacent to the heat insulation plate (11) is in contact with the surface of the heat insulation plate (11); A clamping drive mechanism (30) is provided in the receiving cavity for driving the two heat-insulating plates (20) to move closer or further away from each other, and a clamping space for accommodating the specimen (100) is formed between the two heat-insulating plates (20). A cooling assembly (40) is disposed within the receiving cavity and located on one side of the heat insulation plate (11); A heating assembly (50) is disposed within the receiving cavity and located on the side of the heat insulation plate (11) opposite to the cooling assembly (40); and Multiple temperature sensing elements (60) are respectively disposed in the receiving cavity and are arranged opposite to the heat insulation plate (11).

2. The door and window thermal insulation performance testing device according to claim 1, characterized in that, The chambers located on both sides of the heat insulation plate (11) are defined as a hot chamber and a cold chamber, respectively. The refrigeration component (40) is located in the cold chamber, and the heating component (50) is located in the hot chamber. A dehumidifier (70) is also provided in the hot chamber.

3. The door and window thermal insulation performance testing device according to claim 1, characterized in that, The top and bottom walls of the receiving cavity are respectively provided with sliding grooves (12) on one side of the heat insulation plate (11), and the sliding grooves (12) extend along the length direction of the heat insulation plate (11); the top of the heat insulation clamp (20) is slidably engaged with the upper sliding groove (12), and the bottom of the heat insulation clamp (20) is slidably engaged with the lower sliding groove (12).

4. The door and window thermal insulation performance testing device according to claim 1 or 3, characterized in that, The heat insulation plate (20) has a clamping part (21) extending into the mounting port (111), and the inner wall of the mounting port (111) and the clamping part (21) together enclose a clamping space for accommodating the specimen (100).

5. The door and window thermal insulation performance testing device according to claim 1 or 3, characterized in that, The top and bottom of the heat insulation clamp (20) are respectively provided with adjustment holes (22), the adjustment holes (22) are through along the length direction of the heat insulation clamp (20), and the adjustment holes (22) are threaded holes; one of the heat insulation clamps (20) is defined as the first clamp, and the other heat insulation clamp (20) is defined as the second clamp; the clamping drive mechanism (30) includes: Two lead screws (31) are disposed vertically opposite each other within the receiving cavity. One lead screw (31) is threadedly engaged with the first clamping plate and slidably engaged with the second clamping plate. The other lead screw (31) is slidably engaged with the first clamping plate and threadedly engaged with the second clamping plate. Two drive motors (32) are used to drive the two lead screws (31) to rotate around their respective central axes.

6. The door and window thermal insulation performance testing device according to claim 1, characterized in that, The door and window thermal insulation performance testing device also includes two guide plates (80), which are arranged opposite to each other on both sides of the heat insulation plate (11), and the area of ​​the guide plate (80) is greater than or equal to the area of ​​the mounting port (111); the temperature detection element (60) is located in the space between the guide plate (80) and the heat insulation plate (11).

7. The door and window thermal insulation performance testing device according to claim 6, characterized in that, The bottom of the guide plate (80) is provided with a moving wheel (81).

8. The door and window thermal insulation performance testing device according to claim 1, characterized in that, The testing box (10) has an insulation layer within its own wall thickness range, and the bottom of the testing box (10) is provided with support legs (13).

9. The door and window thermal insulation performance testing device according to claim 1, characterized in that, The refrigeration component (40) is a refrigeration unit, and the heating component (50) is an electric heater.

10. The door and window thermal insulation performance testing device according to claim 1, characterized in that, The multiple temperature sensing elements (60) located on the same side of the heat insulation plate (11) are arranged in a rectangular array.

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