Illumination intensity adjusting device of solar radiation test box

Abstract

The utility model discloses an illumination intensity adjusting device of a solar radiation test box. The illumination intensity adjusting device comprises a light filtering net, a light filtering net connecting rod, an electric execution valve, a first shaft sleeve, a first connecting shaft and a light source device, an electric execution valve is arranged on the front side of the light source device; the electric execution valve is connected with the front side of the filter screen through a first connecting shaft, a first shaft sleeve and a filter screen connecting rod in sequence; a bearing seat mounting bracket is arranged at the upper part of the rear side wall of the light source device; a bearing seat is arranged on the bearing seat mounting bracket; and the bearing seat is connected with the rear side of the filter screen through a second connecting shaft, a second shaft sleeve and a filter screen connecting rod in sequence. The solar radiation test box is scientific in structural design, the illumination intensity provided for objects placed in the solar radiation test box can be conveniently adjusted, the test requirements of users can be better met, normal proceeding of an aging characteristic test can be guaranteed, and the solar radiation test box has great practical significance.

Description

Technical Field

[0001] This utility model relates to the field of solar radiation test chamber technology, and in particular to a light intensity adjustment device for a solar radiation test chamber. Background Technology

[0002] Solar radiation test chambers are mainly used in laboratories to simulate the intensity of solar radiation on products under outdoor sunlight conditions, and then to conduct aging tests on items such as automotive parts, dyes, and decorative materials under simulated sunlight and light exposure.

[0003] However, existing solar radiation test chambers cannot easily adjust the light intensity provided to items placed inside, thus failing to better meet users' testing needs.

[0004] Therefore, there is an urgent need to develop a technology that can solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the technical deficiencies of existing technologies by providing a light intensity adjustment device for a solar radiation test chamber.

[0006] Therefore, this utility model provides a light intensity adjustment device for a solar radiation test chamber, which is suspended on the inner wall of the top of the hollow solar radiation test chamber;

[0007] The device includes a filter screen, a filter screen connecting rod, an electric actuator valve, a first bushing, a first connecting shaft, and a light source device.

[0008] An electric actuator valve is installed on the front side of the light source device;

[0009] The electric actuator valve is connected to the front side of the filter screen in sequence through the first connecting shaft, the first bushing, and the filter screen connecting rod;

[0010] A bearing seat mounting bracket is provided on the upper part of the rear side wall of the light source device;

[0011] The bearing housing is provided on the bearing housing mounting bracket;

[0012] The bearing housing is connected to the rear side of the filter screen in sequence via the second connecting shaft, the second bushing, and the filter screen connecting rod.

[0013] As can be seen from the technical solution provided by this utility model above, compared with the prior art, this utility model provides a light intensity adjustment device for a solar radiation test chamber. The device has a scientific structure design and can conveniently adjust the light intensity provided to the items placed in the solar radiation test chamber, better meet the user's test needs, and help ensure the normal conduct of aging characteristic tests. It has significant practical significance. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the light intensity adjustment device of a solar radiation test chamber provided by this utility model when it is in a non-working state.

[0015] Figure 2 A three-dimensional exploded disassembly diagram of the light intensity adjustment device of a solar radiation test chamber provided by this utility model when it is in a non-working state.

[0016] Figure 3 A front view of Embodiment 1 of the light intensity adjustment device for a solar radiation test chamber provided by this utility model when it is in a non-working state;

[0017] Figure 4 For along Figure 3 A cross-sectional view of the MM line shown;

[0018] Figure 5 A top view of the light intensity adjustment device of a solar radiation test chamber provided by this utility model when it is in a non-working state;

[0019] Figure 6 A three-dimensional structural diagram of the light intensity adjustment device of a solar radiation test chamber in working state, provided by this utility model;

[0020] Figure 7 A three-dimensional exploded disassembly diagram of the light intensity adjustment device of a solar radiation test chamber provided by this utility model when it is in working state.

[0021] Figure 8 A front view of the light intensity adjustment device for a solar radiation test chamber provided by this utility model when it is in working condition;

[0022] Figure 9 A right-side view of the light intensity adjustment device for a solar radiation test chamber provided by this utility model when it is in working condition;

[0023] Figure 10 A top view of the light intensity adjustment device for a solar radiation test chamber provided by this utility model when it is in working condition;

[0024] Figure 11 A front view of Embodiment 2 of the light intensity adjustment device for a solar radiation test chamber provided by this utility model when it is in a non-working state;

[0025] Figure 12 For along Figure 11 A cross-sectional view of the NN line shown;

[0026] Figure 13A schematic diagram of the working state of a solar radiation test chamber light intensity adjustment device provided by this utility model when it is installed on the inner side of the top of a test chamber body;

[0027] Figure 14 for Figure 13 An enlarged schematic diagram of part I shown;

[0028] Figure 15 A schematic diagram of the working state of another embodiment of the light intensity adjustment device for a solar radiation test chamber provided by this utility model when it is installed on the inner side of the top of a test chamber;

[0029] In the diagram, 1. Filter screen, 2. Filter screen connecting rod, 3. Electric actuator valve, 4. Counterweight, 5. Counterweight connecting rod;

[0030] 601, First bushing; 602, Second bushing; 7, First connecting shaft; 8, Bearing housing; 9, Electric actuator valve mounting bracket; 10, Bearing housing mounting bracket.

[0031] 11. Second connecting shaft, 12. Light source device, 13. Bracket, 14. Frame, 15. Test chamber body. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0034] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0035] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] See Figures 1 to 15 This utility model provides a light intensity adjustment device for a solar radiation test chamber, which is suspended on the inner wall of the top of the hollow solar radiation test chamber;

[0037] The device includes a filter screen 1, a filter screen connecting rod 2, an electric actuator valve 3, a first bushing 601, a first connecting shaft 7, and a light source device 12;

[0038] An electric actuator valve 3 is provided on the front side of the light source device 12;

[0039] It should be noted that the light source device 12 is used to emit light and perform the function of illumination, specifically to emit light in a direction directly downward.

[0040] The electric actuator valve 3 is connected to the front side of the filter screen 1 in sequence through the first connecting shaft 7, the first bushing 601 and the filter screen connecting rod 2;

[0041] A bearing seat mounting bracket 10 is provided on the upper part of the rear side wall of the light source device 12;

[0042] The bearing housing 8 is provided on the bearing housing mounting bracket 10;

[0043] The bearing housing 8 is connected to the rear side of the filter screen 1 in sequence through the second connecting shaft 11, the second bushing 602 and the filter screen connecting rod 2.

[0044] In this invention, specifically, the electric actuator valve 3 is used to drive the first connecting shaft 7 to rotate, thereby causing the first bushing 601, the filter screen connecting rod 2, and the filter screen 1 connected to the filter screen connecting rod 2 to rotate, so that the filter screen 1 filters the light emitted by the light source device 12, thereby adjusting the light intensity provided by the light source device 12 to the items (such as specific test objects for photoaging) placed inside the solar radiation test chamber.

[0045] In this invention, specifically, the items placed inside the solar radiation test chamber are located directly below the light source device 12.

[0046] In this invention, specifically, the top view shape of the filter screen 1 is rectangular.

[0047] In this utility model, specifically, an electric actuator valve mounting bracket 9 is provided on the upper part of the front side wall of the light source device 12;

[0048] An electric actuator valve 3 is mounted on the electric actuator valve mounting bracket 9;

[0049] In practice, the electric actuator valve mounting bracket 9 is L-shaped.

[0050] In practice, the shaft hole (i.e. the output shaft hole, which is an internal thread hole) on the electric actuator valve 3 is connected to one end of a first connecting shaft 7 (which has an external thread);

[0051] It should be noted that the first connecting shaft 77 is locked to the shaft hole on the electric actuator valve 3;

[0052] The other end of the first connecting shaft 7 is connected to the center position of the first bushing 601;

[0053] The first bushing 601 is also connected to one end of the two filter screen connecting rods 2, and the other end of the two filter screen connecting rods 2 is connected to one side of the filter screen 1.

[0054] Furthermore, the first bushing 601 and the first connecting shaft 7 are fastened together using a flat key, specifically by using a combination of a flat key and a keyway.

[0055] In practice, the electric actuator valve 3 is fixedly connected to the electric actuator valve mounting bracket 9 using bolts.

[0056] In practice, the electric actuator valve mounting bracket 9 is installed on the front side of the light source device 12 by bolts.

[0057] In specific implementation, the first bushing 601 is provided with two first connecting rod threaded holes;

[0058] The two first connecting rod threaded holes are respectively threaded to the two filter screen connecting rods 2.

[0059] It should be noted that when the two first connecting rod threaded holes are respectively threaded to the two filter connecting rods 2, thread sealant is applied to the threaded holes of the first connecting rods to ensure the tightness of the threaded connection.

[0060] Furthermore, a second connecting rod threaded hole is also provided on the first bushing 601;

[0061] The second connecting rod is threadedly connected to one end of a counterweight connecting rod 5;

[0062] A counterweight 4 is fixedly connected to the other end of the counterweight link 5.

[0063] It should be noted that thread sealant is applied to the threaded hole of the second connecting rod to ensure the tightness of the threaded connection.

[0064] In other words, three threaded holes are opened on the first bushing 601, which are respectively fastened to the two filter screen connecting rods 2 and the counterweight connecting rod 5, and the thread sealant is used to ensure the thread tightness.

[0065] Furthermore, for the two filter screen connecting rods 2 connected to the first bushing 601, these two filter screen connecting rods 2 are symmetrically distributed about the central axis of the counterweight connecting rod 5.

[0066] In this utility model, specifically, the central shaft hole on the bearing seat 8 is connected to one end of a second connecting shaft 11;

[0067] It should be noted that the second connecting shaft 11 is locked to the shaft hole on the bearing housing 8;

[0068] The other end of the first connecting shaft 7 is connected to the center of a second bushing 602;

[0069] The second bushing 602 is connected to one end of the two filter screen connecting rods 2, and the other end of the two filter screen connecting rods 2 is connected to the rear side of the filter screen 1.

[0070] In practice, the bearing housing mounting bracket 10 is L-shaped.

[0071] In practice, the bearing housing 8 is fixedly connected to the bearing housing mounting bracket 10 using bolts;

[0072] In practice, the second bushing 602 and the second connecting shaft 11 are fastened together using a flat key, specifically by using a combination of a flat key and a keyway.

[0073] In practice, the bearing housing mounting bracket 10 is installed on the rear side of the light source device 12 by bolts.

[0074] In specific implementation, the second bushing 602 is provided with two threaded holes for mating with the first connecting rod;

[0075] The two first connecting rod threaded holes are respectively threaded to the two filter screen connecting rods 2.

[0076] It should be noted that when the two first connecting rod threaded holes are respectively threaded to the two filter connecting rods 2, thread sealant is applied to the threaded holes of the first connecting rods to ensure the tightness of the threaded connection.

[0077] Furthermore, a second connecting rod mating threaded hole is also provided on the second bushing 602;

[0078] The second connecting rod is threadedly connected to one end of a counterweight connecting rod 5;

[0079] A counterweight 4 is fixedly connected to the other end of the counterweight link 5.

[0080] It should be noted that thread sealant is applied to the threaded hole of the second connecting rod to ensure the tightness of the threaded connection.

[0081] In other words, three threaded holes are opened on the second bushing 602, which are respectively fastened to the two filter screen connecting rods 2 and the counterweight connecting rod 5, and the thread sealant is used to ensure the thread tightness.

[0082] Similarly, for the two filter rods 2 connected to the second bushing 602, these two filter rods 2 are symmetrically distributed about the central axis of the counterweight rod 5.

[0083] In this utility model, specifically, the light source device 12 includes a light source and a dimming switch (i.e., a dimmer);

[0084] The light source is connected to the dimming switch (i.e., the dimmer);

[0085] In practice, the light source includes at least one halogen lamp;

[0086] In practice, the halogen lamp is connected to the halogen lamp dimming switch (i.e., the dimmer);

[0087] A halogen lamp dimmer switch (i.e., a dimmer) is used to adjust the light intensity of a halogen lamp.

[0088] Preferably, the halogen lamp is a metal halide lamp (also called a high-intensity ultraviolet halogen lamp).

[0089] It should be noted that the light source device 12 is a conventional component that is technically mature and widely used in solar radiation test chambers. It has a built-in light-emitting component (such as a halogen lamp) and a dimming switch (such as a halogen lamp dimming switch) for the light-emitting component.

[0090] In specific implementation, the light source device 12 may include a lamp tube and a lamp cover. The lamp tube can be a full-spectrum lamp tube manufactured by Osram. The model of the lamp tube can be selected according to the actual test conditions. For example, a lamp tube of model HMI 2500W or HMI 4000W can be used. The lamp cover is a self-made sheet metal part. The light source device 12 can be composed of a sheet metal lamp cover and a lamp tube of model HMI 2500W or HMI 4000W manufactured by Osram, and is used as a light source to simulate solar irradiation.

[0091] In specific implementation, the device of this utility model also includes a light sensor;

[0092] The light sensor is installed inside the solar radiation test chamber and is located directly below the light source device 12 (i.e., in the irradiation area directly below).

[0093] In practice, the light sensor is used to detect the light intensity inside the solar radiation test chamber and use the detection result as the light intensity received by the items placed inside the solar radiation test chamber (such as specific test objects for light aging), specifically the light intensity at the location where it is installed.

[0094] In a specific implementation, the device of this utility model may further include a control module;

[0095] A light sensor, connected to the control module, is used to send the light intensity it collects to the control module;

[0096] The control module is connected to the built-in dimming switch (i.e., dimmer) on the light source device 12. It is used to adjust the light intensity value output by the light source device 12 itself through the built-in dimming switch (i.e., dimmer) so that the light intensity collected by the light sensor (i.e., the light intensity received by the items placed inside the solar radiation test chamber) is equal to the target light intensity value preset by the user.

[0097] It should be noted that the control module can adjust the light intensity output value of the light source device 12 by sending an adjustment signal to the dimming switch (i.e., dimmer) of the light source device 12.

[0098] Furthermore, the control module is also connected to the control terminal of the electric actuator valve 3, and is used to control the rotation of the filter screen 1 by sending a control signal, so that the filter screen 1 is located below the light source device 12, thereby making the filter screen 1 filter the light emitted by the light source device 12, adjusting the actual light intensity value of the light from the light source device 12 after passing through the filter screen 1, so that the light intensity collected by the light sensor (i.e. the light intensity received by the items placed inside the solar radiation test chamber) is equal to the target light intensity value preset by the user.

[0099] It should be noted that, for this utility model, the light intensity output value of the light source device 12 can be adjusted by the dimming switch (i.e., dimmer) of the light source device 12, and the actual light intensity value of the light source device 12 after passing through the filter screen 1 can be further adjusted (e.g., further reduced) by controlling the rotation of the filter screen 1, that is, adjusting the light intensity collected by the light sensor (i.e., the light intensity received by the items placed inside the solar radiation test chamber).

[0100] For example, in this invention, the light intensity output value of the light source device 12 can be reduced by using a dimming switch (i.e., a dimmer) on the light source device 12. On the other hand, the actual light intensity value of the light source device 12 after passing through the filter screen 1 can be further reduced by controlling the rotation of the filter screen 1, that is, the light intensity collected by the light sensor (i.e., the light intensity received by the items placed inside the solar radiation test chamber) can be further reduced, so that the light intensity inside the solar radiation test chamber can meet the requirements of low intensity.

[0101] It should be noted that, in specific implementation, when a metal halide lamp is used as the light source in the light source device of this utility model, the metal halide lamp is used in conjunction with a dimmer, and the light intensity range can reach 500W / m. 2 ~1120W / m 2 Furthermore, by rotating and adjusting the position of the filter 1, this invention can further adjust the light intensity provided by the light source device 12 to the items placed inside the solar radiation test chamber, meeting the testing requirements for lower light intensity (for example, after the light-blocking operation of the filter 1, the light source device 12 can ultimately provide 50W / m² to the test items). 2 (light intensity).

[0102] In practice, the light sensor is placed at the center of the irradiation area directly below the light source device 12, and the control module can be a single-chip microcomputer control module or a PLC control module.

[0103] In this utility model, specifically, the first bushing 601 and the electric actuator 3 are respectively concentrically installed with the first connecting shaft 7, serving as the main drive mechanism;

[0104] The second bushing 602 and the bearing housing 8 are respectively installed concentrically with the second connecting shaft 11, serving as a driven mechanism.

[0105] In this utility model, specifically, the counterweight 4 is a solid stainless steel round bar with a central hole, and the central hole (i.e., threaded hole) of the counterweight 4 is threadedly fixedly connected to the counterweight connecting rod 5.

[0106] In this utility model, specifically, the filter screen 1 and the filter screen connecting rod 2 are fixedly connected by bolts and nuts;

[0107] In this utility model, specifically, the filter screen connecting rod 2 and the counterweight connecting rod 5 are both standard solid stainless steel round bars.

[0108] In this utility model, specifically, the bearing housing 8 is a standard double-cut-edge compact single bearing housing.

[0109] In this utility model, specifically, there are two counterweights 4 and two counterweight connecting rods 5; there are two sets of filter screen connecting rods 2, with two rods in each set.

[0110] In this utility model, specifically, the electric actuator valve 3 is a conventional electrical component with mature existing technology. It can be selected as a standard component from the market and used as a rotation drive element for the filter screen 1.

[0111] It should be noted that, in practice, the signal output of the electric actuator valve 3 is a switching signal with a voltage of DC24V, and the controllable rotation angle is 90°.

[0112] In practice, the electric actuator 3 is an electric damper actuator, which can be an electric damper actuator of the Bolimou brand, specifically the NM24AX electric damper actuator produced by Bolimou Automation Equipment Co., Ltd. It is used to rotate the first connecting shaft 7 by 90°. That is, after the electric actuator 3 is energized, it can be controlled by a switch to realize the operation of rotating the first connecting shaft 7 by 90° and resetting it.

[0113] For an electric actuator valve, the function of the shaft hole on the electric actuator valve 3 is to install shaft parts (such as the first connecting shaft 7). The shaft hole is a through hole with a right-angle groove inside. The shaft (such as the first connecting shaft 7) can be locked and fixed by tightening the bolts. This shaft hole can be rotated. After the electric actuator valve 3 receives the start signal, the right-angle groove inside the shaft hole can rotate the shaft (such as the first connecting shaft 7) by 90°.

[0114] In this utility model, specifically, the filter mesh 1 includes two layers of stainless steel mesh, which are formed by stacking the two layers of stainless steel mesh side by side. The two layers of stainless steel mesh are a 20-mesh steel wire mesh with a wire diameter of 0.4 mm and a 40-mesh steel wire mesh with a wire diameter of 0.25 mm, respectively.

[0115] It should be noted that, for this utility model, the filter screen 1 is made of two layers of stainless steel mesh stacked together and edged with stainless steel plates around the edges, assembled into an arc-shaped mesh, and two through holes (threaded holes) are opened on the front and rear sides of the filter screen 1 for fastening the filter screen connecting rod 2 with the threaded connection (the end of the filter screen connecting rod 2 has an external thread, so as to be threadedly connected with the through hole).

[0116] Based on the above, this utility model provides a light intensity adjustment device for a solar radiation test chamber. (See also...) Figures 11 to 15 , the present utility model also provides a solar radiation test chamber, which comprises a hollow test chamber body 15;

[0117] The light intensity adjusting device of the solar radiation test chamber as described above is suspended on the inner wall of the top of the test chamber body 15.

[0118] In the present utility model, specifically, the test chamber body is a sealed chamber.

[0119] In the present utility model, specifically, at the central position of the top of the light source device 12, it is connected to the inner wall of the top of the test chamber body through a vertically distributed connecting rod.

[0120] In the present utility model, specifically, a bracket 13 is provided on the upper part of the light source device 12;

[0121] The shape of the bracket 13 is "U" shaped;

[0122] Specifically, when there is no requirement for frequent removal of the light source device 12, the central position of the top of the bracket 13 is fixedly connected to the top of the test chamber body through a fastening bolt.

[0123] It should be noted that when there is no requirement for frequent removal of the light source device 12, it can be directly installed on the top plate of the test chamber through a fastening bolt (the fastening bolt passes through the top of the bracket 13 and the top of the test chamber body at the same time).

[0124] Specifically, when the light source device 12 needs to be frequently removed, the solar radiation test chamber further comprises a frame 14;

[0125] A plurality of light source devices 12 are installed on the frame 14.

[0126] The top of the frame 14 is fixedly connected to the top of the test chamber body.

[0127] Furthermore, the bracket 13 provided on the upper part of the light source device 12 is connected to the frame 14;

[0128] The two ends of the top of the frame 14 are respectively fixedly connected to the top of the test chamber (specifically, the external frame beam on the inner side of the top of the test chamber) above the top of the test chamber body 15 through two electric hoists.

[0129] It should be noted that when the light source device 12 needs to be frequently removed, multiple light source devices 12 can be installed on a frame 14. The frame is then hoisted to the inner side of the top of the test chamber by an electric hoist. The top of the electric hoist is connected to the top of the test chamber located above the test chamber 15 (specifically, the external frame beam on the inner side of the test chamber top). The lower hanging rope of the electric hoist passes vertically from top to bottom through the top plate of the test chamber 15 (with a reserved through hole) and is connected to the top of the frame 14 used to install the light source device 12.

[0130] It should be noted that electric hoists are a common type of small lifting equipment used for vertical lifting, and will not be discussed further here.

[0131] To better understand the technical solution of this utility model, the working principle of this utility model is explained below.

[0132] First, the light intensity adjustment device for the solar radiation test chamber provided by this utility model is installed inside the solar radiation test chamber;

[0133] Then, during the experiment, the light intensity inside the test chamber was monitored in real time using a light sensor;

[0134] For the light intensity received by items placed inside the solar radiation test chamber (i.e., the light intensity collected by the light sensor), when the target light intensity value required by the test and preset by the user is low (e.g., 50W / m²), 2 When the light intensity is greater than 50W / ㎡, the electric actuator valve 3 can be controlled by the control module to rotate 90°. During the rotation, the electric actuator valve 3 drives the first connecting shaft 7 and the first bushing 601 installed on the first connecting shaft 7 to rotate together. At this time, the first connecting shaft 7 acts as the driving shaft, and through the filter screen 1 as the intermediate medium, it drives the first connecting shaft 11, which acts as the driven shaft, to rotate. Finally, the operation of rotating the filter screen 1 and the counterweight 4 by 90° is achieved (i.e., from the light intensity). Figures 1 to 5 The state becomes Figures 6 to 10 In this state, the filter 1 filters the light intensity of the light source device 12. The control module can adjust the output value of the light intensity of the light source device 12 according to the real-time light intensity data collected by the light sensor, so that the light intensity received by the items placed inside the solar radiation test chamber (i.e. the light intensity collected by the light sensor) reaches the target light intensity value preset by the user.

[0135] For the light intensity received by items placed inside the solar radiation test chamber (i.e., the light intensity collected by the light sensor), when the test requires a user-preset target light intensity value of high intensity (e.g., 1000W / m²),2 When the light intensity is low, the control module controls the electric actuator valve 3 to rotate from 90° back to 0°, and the filter screen 1 no longer blocks the light emitted by the light source device 12, that is, it no longer filters the light. Furthermore, the control module adjusts the output value of the light intensity of the light source device 12 according to the real-time light intensity data collected by the light sensor, so that the light intensity received by the items placed inside the solar radiation test chamber (i.e., the light intensity collected by the light sensor) reaches the target light intensity value preset by the user.

[0136] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A light intensity adjustment device for a solar radiation test chamber, characterized in that, It includes a filter screen (1), a filter screen connecting rod (2), an electric actuator valve (3), a first bushing (601), a first connecting shaft (7), and a light source device (12); An electric actuator valve (3) is provided on the front side of the light source device (12); The electric actuator valve (3) is connected to the front side of the filter screen (1) in sequence through the first connecting shaft (7), the first bushing (601) and the filter screen connecting rod (2); A bearing seat mounting bracket (10) is provided on the upper part of the rear side wall of the light source device (12); A bearing housing (8) is provided on the bearing housing mounting bracket (10); The bearing housing (8) is connected to the rear side of the filter screen (1) in sequence through the second connecting shaft (11), the second bushing (602) and the filter screen connecting rod (2).

2. The light intensity adjustment device for the solar radiation test chamber as described in claim 1, characterized in that, The electric actuator valve (3) is used to drive the first connecting shaft (7) to rotate, thereby driving the first bushing (601) and the filter screen connecting rod (2) and the filter screen (1) connected to the filter screen connecting rod (2) to rotate, so that the filter screen (1) filters the light emitted by the light source device (12), thereby adjusting the light intensity provided by the light source device (12) to the items placed inside the solar radiation test chamber.

3. The light intensity adjustment device for the solar radiation test chamber as described in claim 1, characterized in that, The items placed inside the solar radiation test chamber are located directly below the light source device (12); And / or, The top view of the filter (1) is rectangular; And / or, An electric actuator valve mounting bracket (9) is provided on the upper part of the front side wall of the light source device (12); An electric actuator valve (3) is installed on the electric actuator mounting bracket (9).

4. The light intensity adjustment device for the solar radiation test chamber as described in claim 1, characterized in that, The shaft hole on the electric actuator valve (3) is connected to one end of a first connecting shaft (7); The other end of the first connecting shaft (7) is connected to the center position of the first bushing (601); The first bushing (601) is also connected to one end of two filter screen connecting rods (2), and the other end of the two filter screen connecting rods (2) is connected to one side of the filter screen (1).

5. The light intensity adjustment device for the solar radiation test chamber as described in claim 4, characterized in that, The first bushing (601) is also provided with a second connecting rod threaded hole; The second connecting rod is threadedly connected to one end of a counterweight connecting rod (5); A counterweight (4) is fixedly connected to the other end of the counterweight connecting rod (5); For the two filter rods (2) connected to the first bushing (601), the two filter rods (2) are symmetrically distributed with the central axis of the counterweight rod (5) as the axis of symmetry.

6. The light intensity adjustment device for the solar radiation test chamber as described in any one of claims 1 to 5, characterized in that, The central shaft hole on the bearing housing (8) is connected to one end of a second connecting shaft (11); The other end of the first connecting shaft (7) is connected to the center of a second bushing (602); The second bushing (602) is connected to one end of the two filter screen connecting rods (2), and the other end of the two filter screen connecting rods (2) is connected to the rear side of the filter screen (1).

7. The light intensity adjustment device for the solar radiation test chamber as described in claim 6, characterized in that, The second bushing (602) is also provided with a second connecting rod threaded hole; The second connecting rod is threadedly connected to one end of a counterweight connecting rod (5); A counterweight (4) is fixedly connected to the other end of the counterweight connecting rod (5); For the two filter rods (2) connected by the second bushing (602), the two filter rods (2) are symmetrically distributed with the central axis of the counterweight rod (5) as the axis of symmetry.

8. The light intensity adjustment device for the solar radiation test chamber as described in claim 1, characterized in that, The light source device (12) includes a light source and a dimming switch; The light source is connected to the dimming switch.

9. The light intensity adjustment device for the solar radiation test chamber as described in claim 1, characterized in that, It also includes a light sensor; the light sensor is located inside the solar radiation test chamber and directly below the light source device (12).

10. The light intensity adjustment device for the solar radiation test chamber as described in any one of claims 1 to 9, characterized in that, The device is suspended on the inner wall of the top of a hollow solar radiation test chamber.

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