Automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer

Abstract

The present invention discloses an automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer, which belongs to the field of electromagnetic compatibility test technology. Its structure includes a fixed support device and an automatic key device. The fixed support device includes a fixed base, a rotatable support plate is arranged on the fixed base, and a support frame for carrying the test equipment is arranged on the support plate; the support frame includes a mounting plate and a bearing frame, and the inclination angle of the bearing frame is adjustable. The automatic key device includes an airbag, which is connected to an air pump, and a key device is arranged on the airbag. The key device corresponds to the key of the test equipment on the support frame, and the airbag and the key device are both made of insulating materials. The technical solution of the example of the present invention can improve the accuracy of the test results, ensure the reproducibility of the test, and improve the test efficiency. In addition, during the test, the test personnel do not need to enter the radio darkroom, which is safer.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic compatibility testing, in particular to electromagnetic compatibility testing of medical equipment, in particular to an automatic detection device for electromagnetic compatibility radiation immunity testing of infrared thermometers. Background Art

[0002] Electromagnetic compatibility refers to the ability of a device or system to work normally in its electromagnetic environment and not cause unbearable electromagnetic disturbance to anything in the environment; electromagnetic disturbance refers to any electromagnetic phenomenon that may cause the performance of devices, equipment and systems to degrade.

[0003] Most electronic devices will be affected by electromagnetic radiation under certain circumstances, such as small handheld radio transceivers used by operators, maintenance and security personnel, fixed radio broadcasts, TV station transmitters, vehicle-mounted radio transmitters and various industrial electromagnetic sources. These conventional sources frequently generate such radiation. The RF electromagnetic field radiation immunity test is to test the immunity of the equipment to electromagnetic radiation disturbance in the RF electromagnetic field of the required frequency range and test level.

[0004] For devices such as infrared thermometers, the general basic performance is to define the maximum allowable error within the temperature display range. The national standard GB / T21417.1-2008 "Medical Infrared Thermometer" stipulates that the maximum allowable error within the temperature display range is ±0.2℃; the maximum allowable error outside the temperature display range is ±0.3℃.

[0005] Regarding the operating procedures for electromagnetic compatibility radiation immunity test, the national standard GB / T17626.3-2016 "Electromagnetic compatibility test and measurement technology radio frequency electromagnetic field radiation immunity test" stipulates that the transmitting antenna should be tested on the four sides of the EUT (equipment under test) one by one. When the EUT can be placed in different directions for use, all sides should be tested, and each side of the EUT needs to be tested in two planned states of the transmitting antenna, once in the vertical polarization direction of the antenna and the other in the horizontal polarization direction of the antenna.

[0006] At present, when infrared thermometers are tested for radio frequency electromagnetic field radiation immunity in an anechoic chamber, during the entire test process, people hold the thermometer in the dark room and aim it at the black body for continuous measurement. This measurement method has the following disadvantages in actual operation:

[0007] First of all, infrared thermometers from different manufacturers have different measurement distances for black bodies. As a result, human errors during operation cannot be avoided, and it is difficult to ensure the reproducibility of the test and the accuracy of the measurement, which is not conducive to judging the test results.

[0008] Secondly, during the RF electromagnetic field radiation immunity test, the test level is 3V / m, and the test personnel cannot be exposed in the radio wave darkroom. Therefore, cumbersome protective steps are required during the test, which poses a hidden danger to the health of the test personnel.

[0009] In addition, when the test device needs to be detected in multiple directions, the manual hand-held test method requires manual movement of the fixed device carrying the test device to change the direction, which is labor-intensive and inefficient. Faced with a large demand gap, traditional detection devices and detection methods cannot meet the actual needs of large-scale detection in a short period of time, which limits the market supply of infrared thermometers.

[0010] Therefore, designing a device that can quickly, safely and accurately conduct electromagnetic compatibility radiation immunity tests on infrared thermometers is an urgent problem that needs to be solved. Summary of the invention

[0011] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide an automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers, which can improve the accuracy of test results, ensure the reproducibility of tests, and improve test efficiency.

[0012] The technical solution adopted by the present invention to solve the technical problem includes:

[0013] Provided is an automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer, comprising a fixed support device, the fixed support device comprising a fixed base, a support plate rotatable in a horizontal plane is arranged on the fixed base, a support frame for carrying a test device is arranged on the support plate, and the position of the support frame corresponds to the rotation axis of the support plate;

[0014] The support frame includes a mounting plate and a load-bearing frame, and the load-bearing frame includes a base plate, a load-bearing plate and a bracket. The base plate is connected to the mounting plate, and the load-bearing plate and the bracket are rotatably mounted on the base plate and can be constructed into a triangular structure together with the base plate. A plurality of card slots that are compatible with the top of the bracket are arranged in parallel on the back side of the load-bearing plate, and the bracket cooperates with different card slots to adjust the inclination angle of the load-bearing plate.

[0015] Furthermore, at least two bearing racks are arranged on each of the mounting plates. The bearing racks are symmetrically distributed on the mounting plates, and a fixing belt is connected between two adjacent bearing racks.

[0016] Furthermore, an adjustable limit baffle is provided on the mounting plate, and the limit baffle is close to the lower end of the bearing plate to support the bottom of the test equipment.

[0017] Furthermore, the support plate and the fixed base are connected via a bearing, and the inner ring and the outer ring of the bearing are respectively connected to the support plate and the fixed base to achieve relative rotation between the two.

[0018] Furthermore, a plurality of universal wheels are arranged on the bottom side of the support plate, and the universal wheels are symmetrically or evenly distributed on the bottom side of the support plate.

[0019] Furthermore, the support frame and the support plate are detachably connected;

[0020] and / or,

[0021] The support plate is provided with a scale.

[0022] Furthermore, it also includes an automatic key device used in conjunction with the fixed support device, the automatic key device includes an airbag, the airbag is connected to an air pump, a key device is provided on the airbag, the key device corresponds to the key of the test equipment on the support frame, and the airbag and the key device are both made of insulating materials.

[0023] Furthermore, the button device is a raised point protruding from the surface of the airbag or an insulating sheet flush with the surface of the airbag.

[0024] Furthermore, both ends of the airbag are provided with mutually cooperating adjustable connection structures.

[0025] Furthermore, the airbag is integrated into the support frame, and the airbag is in the shape of a belt. After passing through a fixing ring on the support frame, the airbag forms a strap to constrain the test device on the support frame.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention is provided with a support plate rotatable in a horizontal plane on a fixed base. The test device is placed on the support plate through a support frame. The support plate drives the test device to rotate and change its direction to achieve detection from multiple sides. There is no need to manually move the fixing device carrying the test device, which reduces the labor intensity of the test personnel and improves the test efficiency. At the same time, it ensures that the test surface is on a uniform field surface, thereby ensuring the validity of the test results.

[0028] 2. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention can adjust the inclination angle of the bearing plate carrying the test equipment to meet the test needs in different situations, has strong flexibility in use and a wide range of applications.

[0029] 3. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention is composed of at least two bearing frames, and a fixing belt is connected between two adjacent bearing frames. The test equipment is fixed by the fixing belt. The fixing belt has little blocking effect on the radiation signal, thereby ensuring the accuracy of the test result.

[0030] 4. In the automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention, the support plate and the fixed base are connected by bearings to facilitate the smooth transmission of rotation and reduce component wear.

[0031] 5. In the automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention, a plurality of universal wheels are arranged on the bottom side of the support plate. The universal wheels support the support plate to prevent the support plate around the bearing from being suspended in the air and causing the support plate to tilt. At the same time, the universal wheels can also ensure the smooth rotation of the support plate, thereby ensuring the reliability and service life of the detection device.

[0032] 6. In the automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention, the support frame and the support plate are detachably connected. The support frame can be removed when no test is carried out. The support frame and the fixed base can independently realize other functions, thereby improving the utilization rate of the device.

[0033] 7. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention is provided with a scale on the support plate. The reference scale can conveniently and intuitively realize the fixation of the position of the test equipment relative to the blackbody radiation source, eliminates the interference of human errors, and ensures the accuracy and rigor of the measurement results.

[0034] 8. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention is provided with an automatic key device to realize full automation of the entire test process, thereby avoiding exposure of test personnel to the radio darkroom, saving human resources, saving the steps of test personnel taking protective measures, further improving test efficiency, and at the same time avoiding the possible impact of the radio darkroom on the health of test personnel and eliminating safety hazards.

[0035] 9. In the automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention, the airbag and the button device of the automatic key device are both made of insulating materials, and metal materials are completely avoided in the constituent parts to prevent metal materials from affecting the uniformity of the electromagnetic field, thereby ensuring the accuracy of the detection results.

[0036] 10. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention is provided with a limit baffle, which supports the bottom end of the test device to prevent the test device from slipping off the support frame or the fixing belt, thereby ensuring the stability of the test device when placed and ensuring the accuracy and effectiveness of the test results; the distance between the limit baffle and the support plate can be adjusted to accommodate thermometers of different specifications and models, thereby ensuring the position requirement between the thermometer probe and the blackbody radiation source.

[0037] 11. In the automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention, both ends of the airbag are provided with adjustable connection structures that cooperate with each other, and the entire airbag forms a strap integrated on the support frame, which ensures the reliable cooperation between the test equipment and the automatic key device and increases the firmness of the fixation of the test equipment.

[0038] 12. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometers in the example of the present invention uses the same test equipment and the same fixture during the test layout to ensure the repeatability and traceability of future tests, which is conducive to the unification of future medical device supervision and random testing methods and ensures the effectiveness of medical product supervision. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0040] Figure 1 This is a schematic structural diagram of a fixed support device according to a first embodiment of the present invention;

[0041] Figure 2 This is a structural schematic diagram of the bottom surface of a support plate according to an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the structure of a support frame according to an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the structure of a carrier frame according to an embodiment of the present invention;

[0044] Figure 5 This is a structural schematic diagram of the back side of a carrier plate according to an embodiment of the present invention;

[0045] Figure 6 This is a schematic diagram of the structure of a bracket according to an embodiment of the present invention;

[0046] Figure 7 It is a schematic diagram of the partial structure of the fixing belt of the second embodiment of the present invention;

[0047] Figure 8 It is a schematic diagram of the partial structure of the airbag of the second embodiment of the present invention;

[0048] Fig. 9 for Figure 8 Bottom view of

[0049] Fig.10 This is a structural schematic diagram of the bottom surface of the support plate according to the third embodiment of the present invention;

[0050] Fig.11 It is a schematic diagram of the partial structure of the fixing belt of the fourth embodiment of the present invention;

[0051] Fig.12 This is a schematic diagram of the partial structure of the fixing belt of the fifth embodiment of the present invention;

[0052] Fig.13 It is a schematic structural diagram of a fixing support device according to a sixth embodiment of the present invention.

[0053] In the figure: 1 fixed base, 2 support plate, 3 mounting plate, 4 bearing frame, 5 bearing, 6 bottom plate, 7 bracket, 8 bearing plate, 9 fixing belt, 10 mounting hole, 11 slot, 12 insert, 13 fixing ring, 14 airbag, 15 raised point, 16 limit baffle, 17 universal wheel, 18 anti-skid pad, 19 positioning groove. DETAILED DESCRIPTION

[0054] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0055] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0056] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0060] Embodiment 1:

[0061] like Figure 1 As shown, this embodiment provides an automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer, including a fixed support device, the fixed support device includes a fixed base 1, the fixed base 1 is provided with a support plate 2 that can rotate in a horizontal plane, and the support plate 2 is provided with a support frame for carrying the test device. In order to ensure that the side of the test device is always aligned with the antenna of the test system in the radio wave darkroom after the rotation direction, the position of the support frame corresponds to the rotation axis of the support plate 2.

[0062] like Figure 3 , Figure 4 As shown, the support frame includes a mounting plate 3 and a bearing frame 4, the bearing frame 4 includes a bottom plate 6, a bearing plate 8 and a bracket 7, the bottom plate 6 is connected to the mounting plate 3, the bearing plate 8 and the bracket 7 are rotatably mounted on the bottom plate 6 and can be built together with the bottom plate 6 to form a triangular structure, such as Figure 5 As shown, the back of the carrier plate 8 is provided with a plurality of slots 11 adapted to the top of the bracket 7, as shown in FIG. Figure 6 As shown, an inserting piece 12 matched with the card slot 11 can be provided at the top of the bracket 7 , and the inserting piece 12 of the bracket 7 cooperates with different card slots 11 to adjust the tilt angle of the carrying plate 8 .

[0063] Specifically, the fixed base 1 is composed of a table top and a support foot, the support foot is located below the table top, the total vertical height of the fixed base 1 and the support plate 2 is 0.8 meters, the fixed base 1 and the support plate 2 and the support frame on its upper part are all made of non-metallic materials, such as hard polystyrene, etc., rather than a metal frame wrapped by an insulating layer. The use of non-metallic supports can prevent accidental grounding of the test equipment and field distortion, and can ensure that there is no distortion on site.

[0064] like Figure 2As shown, in this embodiment, the support plate 2 is connected to the fixed base 1 through the bearing 5, and the inner ring and outer ring of the bearing 5 are respectively connected to the support plate and the fixed base to achieve relative rotation between the two. Specifically, the inner ring of the bearing 5 can be connected to the support plate 2, and the outer ring can be connected to the fixed base 1; or the inner ring of the bearing 5 can be connected to the fixed base 1, and the outer ring can be connected to the support plate 2, as long as the relative rotation between the two can be achieved.

[0065] Optional, such as Figure 3 As shown, two bearing racks 4 are arranged on each mounting plate 3, and the bearing racks 4 are symmetrically distributed on the mounting plate 3, and a fixing belt 9 is connected between the two bearing racks 4. When in use, the test device is fixed on the fixing belt 9, and the change of the inclination angle of the bearing plate 8 will drive the synchronous change of the inclination angle of the fixing belt 9. However, when the present invention is implemented, the structural form of the support frame is not limited to the form described in this embodiment, and it can be set as a single bearing rack or other styles, as long as it can realize the bearing of the test device.

[0066] like Figure 3 In order to prevent the test device from slipping off the carrier 4 or the fixing belt 9 and ensure the stability of the test device when placed, an adjustable limit baffle 16 is provided on the mounting plate 3, and the limit baffle 16 is close to the lower end of the carrier plate 8 to support the bottom of the test device. Specifically, a plurality of slots can be provided on the mounting plate 3, and the vertical limit baffle 16 can be inserted into different slots to adjust the distance between the limit baffle 16 and the carrier 4 to adapt to thermometers of different specifications and models, thereby ensuring the position requirements between the thermometer probe and the black body radiation source.

[0067] Preferably, the support frame and the support plate 2 are detachably connected. Specifically, a column can be set on the support plate 2, and a mounting hole 10 can be set on the mounting plate 3 of the support frame. The connection between the two is achieved by inserting the mounting hole 10 onto the column, or corresponding mounting holes are set on the support plate 2 and the mounting plate 3, and the connection between the two is achieved by inserting a pin or screw made of insulating material into the mounting hole. The support frame is set in a detachable form, which can be removed when not being tested and used for other purposes to increase utilization. However, it is understandable that the support frame can also be set to be directly fixed on the support plate 2.

[0068] When this embodiment is in use, the device under test is placed on the support frame, the blackbody radiation source used for the test is placed at an appropriate position on the support plate 2, and the probe of the device under test is aimed at the blackbody radiation source. When multi-directional testing is required, by rotating the support plate 2, the support plate 2 drives the device under test and the blackbody radiation source to rotate and change their directions, so as to achieve detection on multiple sides. There is no need to manually move the fixing device carrying the device under test and the blackbody radiation source, which reduces the labor intensity of the test personnel and improves the test efficiency. At the same time, the device under test is located at the rotation axis of the support plate 2. When testing different surfaces of the device under test, it is ensured that the test surface is on the uniform field surface, and the validity of the test results is ensured.

[0069] Embodiment 2:

[0070] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The features of this embodiment that are different from the first embodiment are that this embodiment further includes an automatic key-pressing device used in conjunction with the fixed support device of the first embodiment, such as Figure 8 , Fig. 9 As shown, the automatic key device includes an airbag 14, which is connected to an air pump (not shown in the figure). A key device is provided on the airbag 14, and the key device corresponds to the key of the test equipment on the support frame. The airbag 14 and the key device are both made of insulating materials.

[0071] In this embodiment, the button device is a protruding point 15, which is generally set to be a cylindrical shape protruding from the surface of the airbag 14. The airbag 14 is connected to the air pump through a pipeline. The air pump is a dual-purpose air pump that can realize inflation and degassing. The dual-purpose air pump is an existing mature product that can be directly purchased from the market and has its own control system. Its specific structure is not repeated here.

[0072] In this embodiment, the button device is set as a protruding point 15, which is suitable for infrared thermometers with flat or concave buttons. For infrared thermometers with convex buttons, the button device can be set as an insulating sheet flush with the surface of the airbag 14, which can be a plastic sheet or the like.

[0073] Optionally, both ends of the airbag 14 are provided with mutually cooperating adjustable connection structures, such as Velcro, which can be bonded at different positions to adjust the size of the cavity surrounded by the airbag 14, thereby adapting to test devices of different sizes.

[0074] like Figure 7 As shown, the airbag 14 can also be integrated into the support frame, and the airbag 14 is set in a belt shape. A fixing ring 13 is set at the inner edge of the supporting plate 8 of the support frame. The airbag 14 passes through the fixing ring 13 on the support frame to form a strap to constrain the test device on the support frame.

[0075] Alternatively, the airbag 14 is integrated into the interior of the fixing belt 9, and the fixing belt 9 is lengthened to form a strap that can wrap and bind the test device. When the airbag is integrated into the interior of the fixing belt 9, the structure can refer to Figure 3 and Figure 7 That is, the fixing belt 9 is lengthened and passed around the fixing ring 13 on the bearing plate 8 to tie up the device under test, the inside of the fixing belt 9 is an air bag, and a raised point is set on the inner surface of the fixing belt 9 corresponding to the position of the button of the device under test to realize the button.

[0076] When this embodiment is in use, in addition to realizing the functions of the first embodiment, an automatic key function is also realized, specifically, the raised point 15 of the airbag 14 is fixed corresponding to the button of the test device, the air pump is started, and the air pump is controlled to inflate the airbag 14. The airbag 14 swells and drives the raised point 15 to press the button of the test device. When the air pump evacuates the airbag 14, the airbag 14 contracts, and the raised point 15 releases the button of the test device, thereby realizing automatic key pressing. During the test, the testing personnel are prevented from being exposed to the radio wave darkroom, thereby saving human resources.

[0077] When the key device is configured as an insulating sheet, the airbag 14 swells and drives the insulating sheet on the airbag wall to move toward the device under test, so that the insulating sheet contacts the raised key on the device under test, thereby realizing automatic key pressing.

[0078] Each component of the airbag of the automatic key device of this embodiment is also made of insulating materials to prevent metal components from affecting the uniformity of the electromagnetic field.

[0079] Embodiment three:

[0080] The features of this embodiment that are the same as those of the previous embodiment are not described in detail. The features of this embodiment that are different from those of the previous embodiment are as follows: Fig.10 As shown, in this embodiment, a plurality of universal wheels 17 are provided on the bottom side of the support plate 2. In this embodiment, four universal wheels 17 are symmetrically distributed on the bottom side of the support plate 2. In other embodiments, the number of universal wheels 17 may be increased or decreased, generally at least two. When the number increases, they may be evenly distributed along the edge of the support plate 2. The universal wheels 17 may also be replaced by universal ball bearings.

[0081] The diameter of the universal wheel 17 or the universal ball is equal to the height of the bearing 5. The universal wheel 17 supports the support plate 2 to prevent the support plate 2 around the bearing 5 from being suspended in the air and causing the support plate 2 to tilt. At the same time, the universal wheel 17 can also ensure the smooth rotation of the support plate 2, thereby ensuring the reliability and service life of the detection device.

[0082] In this embodiment, a positioning device, such as a positioning bolt, is preferably provided between the support plate 12 and the bottom plate of the fixed base 11. When the positioning bolt is tightened so that its lower end abuts against the table surface of the fixed base 11, the position of the support plate 12 is limited to prevent it from sliding on the table surface of the fixed base 1 under the action of the universal wheel 14 and causing angular deviation; when the positioning bolt is loosened, it will not affect the rotation of the support plate 12 when it is loosened from the table surface of the fixed base 11. The positioning bolt should be made of insulating material.

[0083] Embodiment 4:

[0084] The features of this embodiment that are the same as those of the previous embodiment are not described in detail. The features of this embodiment that are different from those of the previous embodiment are as follows: Fig.11 As shown, in this embodiment, in order to place the test device more stably and prevent it from slipping or falling on the support frame, an anti-skid pad 18 is provided on the contact surface between the fixing belt 9 of the support frame and the test device. Specifically, the anti-skid pad 18 is an insulating rubber pad with anti-skid patterns on the surface.

[0085] Embodiment five:

[0086] The features of this embodiment that are the same as those of the previous embodiment are not described in detail. The features of this embodiment that are different from those of the previous embodiment are as follows: Fig.12 As shown, in this embodiment, in order to place the test device more stably and prevent it from slipping or falling on the support frame, a positioning structure is provided on the contact surface between the fixing belt 9 of the support frame and the test device, and the positioning structure includes an insulating rubber pad, and the surface of the insulating rubber pad is provided with a positioning groove 19 for accommodating the test device.

[0087] Embodiment six:

[0088] The features of this embodiment that are the same as those of the previous embodiment are not described in detail. The features of this embodiment that are different from those of the previous embodiment are as follows: Fig.13 As shown, in this embodiment, a scale is provided on the support plate 2. The scale is provided on the support plate 2, and the reference scale can conveniently and intuitively realize the fixation of the position of the test device relative to the blackbody radiation source, eliminate the interference of human errors, and ensure the accuracy and rigor of the measurement results.

[0089] In the above embodiment, the shape of the table top of the support plate 2 and the fixed base 1 is preferably square, and the area and shape of the contact surface of the two are preferably consistent, or the support plate 2 is slightly smaller than the table top of the fixed base 1. The square support plate 2 and the bottom plate 6 can make it more intuitive to judge the standard of the rotation angle when rotating. It is preferred to install the bearing 5 and the support frame at the center of the support plate 2, so that after the support plate 2 rotates 90°, its edge is aligned or parallel to the edge of the table top of the fixed base 1 again. However, this shape and position do not constitute a limitation on the protection scope of the present invention. In specific implementation, its shape can also be changed, such as being set to a circle; the bearing 5 and the support frame can also be installed at a position off-center of the support plate 2. When the bearing 5 and the support frame deviate from the center of the support plate 2, it is preferred to increase the table top area of ​​the fixed base 1 to avoid the edge of the support plate 2 from being suspended after the rotation.

[0090] When the above embodiment is implemented, because it is necessary to ensure that the entire device has no metal parts, the rotation of the support plate 2 cannot use a driving mechanism with metal parts, and is generally rotated manually. Under the action of the bearing 5, the manual rotation greatly reduces the labor intensity and saves time compared to the traditional manual movement. After a side test is completed, before rotating the support plate 2, the test system is turned off to avoid electromagnetic waves affecting the test personnel.

[0091] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

[0092] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. An automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer, characterized in that: The fixed support device comprises a fixed base, the fixed base is provided with a support plate rotatable in a horizontal plane, the support plate is provided with a support frame for carrying the test device, and the position of the support frame corresponds to the rotation axis of the support plate; The support frame includes a mounting plate and a bearing frame, and the bearing frame includes a bottom plate, a bearing plate and a bracket. The bottom plate is connected to the mounting plate, and the bearing plate and the bracket are rotatably mounted on the bottom plate and can be built into a triangular structure together with the bottom plate. A plurality of card slots adapted to the top of the bracket are arranged in parallel on the back of the bearing plate, and the bracket cooperates with different card slots to adjust the inclination angle of the bearing plate; At least two bearing racks are arranged on each of the mounting plates, the bearing racks are symmetrically distributed on the mounting plates, and a fixing belt is connected between two adjacent bearing racks; An adjustable limit baffle is provided on the mounting plate, and the limit baffle is close to the lower end of the bearing plate to support the bottom of the test equipment; The support plate and the fixed base are connected via a bearing, and the inner ring and the outer ring of the bearing are respectively connected to the support plate and the fixed base to achieve relative rotation between the two; A plurality of universal wheels are arranged on the bottom side of the support plate, and the universal wheels are symmetrically or evenly distributed on the bottom side of the support plate.

2. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer according to claim 1 is characterized in that: The support frame and the support plate are detachably connected; and / or, The support plate is provided with a scale.

3. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer according to claim 1 is characterized in that: It also includes an automatic key device used in conjunction with the fixed support device, the automatic key device includes an airbag, the airbag is connected to an air pump, a key device is provided on the airbag, the key device corresponds to the key of the test equipment on the support frame, and the airbag and the key device are both made of insulating materials.

4. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer according to claim 3 is characterized in that: The button device is a raised point protruding from the surface of the airbag or an insulating sheet flush with the surface of the airbag.

5. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer according to claim 3 is characterized in that: Both ends of the airbag are provided with mutually matching adjustable connection structures.

6. The automatic detection device for electromagnetic compatibility radiation immunity test of infrared thermometer according to claim 5 is characterized in that: The airbag is integrated into the support frame. The airbag is in the shape of a belt. After passing through a fixing ring on the support frame, the airbag forms a strap to constrain the test device on the support frame.

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