Device for detecting organic volatile substances of automotive trim material

Abstract

The utility model discloses a device for detecting organic volatile substances of an automotive trim material, which comprises a spectrum detection part, a first detection part and a second detection part, the spectrum detection part comprises an open outer shell, a spectrum transmitter and a spectrum receiver are arranged at the bottom of the open outer shell, and a pair of first reflectors are arranged on the inner sides of the two end surfaces of the open outer shell; the gas collecting part comprises a convex inner shell, a pair of light ports are formed in the bottom of the convex inner shell, and a suction fan and an exhaust fan are arranged on the two sides of the convex inner shell respectively; wherein a plurality of second reflectors are arranged in the convex inner shell, so that the near-infrared light emitted by the spectrum emitter is reflected by the first reflector close to the spectrum emitter and then enters the convex inner shell through a light port; and the near-infrared light in the convex inner shell is reflected by the plurality of second reflectors, then is emitted out of the convex inner shell from the other light port, is reflected by the first reflector close to the spectrum receiver, and then is received by the spectrum receiver. The device can be used for rapidly and accurately detecting the organic volatile substances of the automotive trim material.

Description

Technical Field

[0001] The utility model relates to the field of volatile substance detection devices. More specifically, the utility model relates to a detection device for organic volatile substances in automotive interior materials. Background Art

[0002] The problem of in-vehicle air quality, especially in new vehicles, has attracted increasing attention. The content of VOC (volatile organic compounds, including benzene series, freon series, etc.) in new vehicle interior materials remains high. The reasons mainly include the following three points: First, a large amount of VOC appears in the production process of automobiles. For example, the content of VOC is relatively large in the painting workshop of automobiles. Second, the interior materials of new vehicles usually adopt plastic, leather, rubber, and fiber textile materials, which themselves contain a certain amount of VOC. Third, the adhesives used for bonding automotive interior materials also contain VOC. Organic volatile substances in automotive interior materials seriously affect the health of people in the vehicle. Currently, there are many devices for collecting volatile substances in automotive interior materials. For example, in the utility model with the publication number CN215339129U and the name of a convenient-to-carry device for collecting volatile substances in automotive interiors, a device for collecting volatile substances in automotive interiors is disclosed. Its structure is simple and it can effectively absorb volatile gases in the vehicle. However, there is still no detection device on the market that can quickly detect organic volatile substances in automotive interior materials. Summary of the Utility Model

[0003] An object of the utility model is to solve at least the above problems and provide at least the advantages described later.

[0004] Another object of the utility model is to provide a detection device for organic volatile substances in automotive interior materials, which can quickly and accurately detect organic volatile substances in automotive interior materials without disassembling the automotive interior.

[0005] To achieve these objects and other advantages according to the utility model, a detection device for organic volatile substances in automotive interior materials is provided, including:

[0006] A spectral detection unit, which includes an open outer housing with an upward opening. A spectral emitter and a spectral receiver are provided at the bottom of the open outer housing facing the opening direction. A pair of first reflectors are provided on the inner sides of the two end faces of the open outer housing.

[0007] A gas collection unit, which includes a convex inner housing. The reduced-diameter section of the convex inner housing is hermetically inserted into the open end of the open outer housing. A pair of light ports are provided at the bottom of the convex inner housing. An intake fan and an exhaust fan are respectively provided on both sides of the convex inner housing. Both the intake fan and the exhaust fan are communicated with the convex inner housing. A detachable air intake is provided outside the intake fan.

[0008] Among them, a plurality of second reflectors are provided inside the convex inner housing, so that the near-infrared light emitted by the spectral emitter is reflected by the first reflector close to the spectral emitter and then enters the convex inner housing through a light port. Inside the convex inner housing, the near-infrared light is reflected by the plurality of second reflectors and then exits the convex inner housing through another light port and is received by the spectral receiver after being reflected by the first reflector close to the spectral receiver.

[0009] Preferably, a vacuum pump communicating with the inner cavity of the open outer housing is provided on the open outer housing.

[0010] Preferably, a pair of sealing plates are provided inside the inner cavity of the convex inner housing, and the pair of sealing plates are respectively arranged close to the suction fan and the exhaust fan. Any one of the sealing plates includes a plurality of louver blades, an upper beam, and a louver motor. The plurality of louver blades are arranged in sequence along the width direction of the convex inner housing, and adjacent blades are in different states of being buckled or separated under the drive of the louver motor.

[0011] Preferably, a sealing strip is provided on the outer wall of the reduced-diameter section of the convex inner housing.

[0012] Preferably, a base is further provided at the bottom of the spectral detection part. The base includes a rubber layer and a hard plastic layer adhesively bonded from top to bottom. The Shore hardness A of the rubber layer is 70-90 degrees, and the Shore hardness D of the hard plastic layer is 70-90 degrees.

[0013] Preferably, the spectral emitter and the spectral receiver are symmetrically arranged with respect to the center of the bottom of the open outer housing, and a pair of first reflectors are respectively arranged at corresponding positions on both end faces of the open outer housing.

[0014] Preferably, a control board connected to the power supply is provided on the open outer housing, and the control board is electrically connected to the spectral emitter, the spectral receiver, the suction fan, the exhaust fan, and the louver motor of the sealing plate.

[0015] Preferably, a dust-proof net is provided along the width direction of the convex inner housing on one side of a pair of sealing plates respectively close to the suction fan and the exhaust fan.

[0016] The utility model has at least the following beneficial effects: The detection device for organic volatile substances of automotive interior materials provided by the utility model includes a spectral detection part and a gas collection part. The gas collection part is used to collect the air in the surrounding environment of the automotive interior materials, and the spectral detection part is used to quickly and accurately detect the air collected by the gas collection part, so as to quickly detect whether the organic volatile substances of the automotive interior materials meet the standards without disassembling the automotive interior; A detachable air inlet is equipped around the suction fan of the gas collection part, and the air inlet can enrich the organic volatile substances in the automotive interior materials to be tested into the air inlet, improving the accuracy of the detection of organic volatile substances of automotive interior materials. Different sizes of air inlets can also be set according to the size of the surrounding space of the automotive interior materials to be tested, improving the adaptability of the detection device for organic volatile substances of automotive interior materials; A pair of sealing plates are also arranged in the gas collection part, which can fix the air sucked by the suction fan in a certain sealed space, improving the accuracy of the detection of organic volatile substances of automotive interior materials; A vacuum pump communicating with the inner cavity of the open outer shell is arranged on the open outer shell, which can effectively remove the interfering gases in the detection device for organic volatile substances of automotive interior materials, and at the same time form a negative pressure in the detection device for organic volatile substances of automotive interior materials, which is beneficial for the suction fan to suck the surrounding air of the automotive interior materials to be tested into the detection device.

[0017] Other advantages, objectives and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the detection device for organic volatile substances of automotive interior materials in one technical solution of the utility model;

[0019] Figure 2 It is a schematic structural diagram of the detection device for organic volatile substances of automotive interior materials in one technical solution of the utility model;

[0020] Figure 3 It is a schematic structural diagram of the spectral detection part in another technical solution of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the gas collection part in another technical solution of the utility model. Detailed Description of the Embodiment

[0022] The following further detailed description of the utility model is made in conjunction with the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0023] It should be understood that terms such as "having", "comprising", and "including" as used herein do not preclude the presence or addition of one or more other elements or combinations thereof.

[0024] As Figures 1 to 4 shown, the present utility model provides a detection device for organic volatile substances in automotive interior materials, comprising:

[0025] A spectral detection unit, which includes an open housing 2 with an upward opening. A spectral emitter 6 and a spectral receiver 7 are provided at the bottom of the open housing 2 facing the open direction. A pair of first reflectors are provided on the inner sides of the two end faces of the open housing 2, so that Figure 1 from a perspective, the pair of first reflectors are respectively a first reflector 8 provided on the left side of the open housing 2 and a first reflector 9 provided on the right side of the open housing 2;

[0026] A gas collection unit, which includes a convex inner housing 3. The reduced-diameter section of the convex inner housing 3 is hermetically inserted into the open end of the open housing 2. A pair of light ports are provided at the bottom of the convex inner housing 3, which are respectively a light port 10 and a light port 20. An intake fan 4 and an exhaust fan 5 are respectively provided on both sides of the convex inner housing 3. Both the intake fan 4 and the exhaust fan 5 are communicated with the convex inner housing 3. A detachable air intake 19 is provided outside the intake fan 4;

[0027] Among them, a plurality of second reflectors are provided in the convex inner housing 3, so that the near-infrared light emitted by the spectral emitter 6 is reflected by the first reflector 9 close to the spectral emitter and then enters the convex inner housing 3 through a light port 10. In the convex inner housing 3, the near-infrared light is reflected by the plurality of second reflectors and then exits the convex inner housing 3 from the other light port 20 and is received by the spectral receiver 7 after being reflected by the first reflector 8 close to the spectral receiver 7.

[0028] In the above technical solution, the detection device for organic volatile substances in automotive interior materials includes a spectral detection unit and a gas collection unit. The gas collection unit is used to collect the ambient air around the automotive interior materials, and the spectral detection unit is used to detect the types and contents of organic volatile substances in the gas in the gas collection unit. The gas collection unit is partially inserted into the spectral detection unit from above the spectral detection unit and is hermetically connected to the spectral detection unit. The gas collection unit includes a convex inner housing 3 having a receiving cavity. The reduced-diameter section of the convex inner housing 3 is just hermetically inserted into the spectral detection unit. A pair of light ports are provided at the bottom (the surface inserted into the spectral detection unit) of the convex inner housing 3. The pair of light ports are respectively a light port 10 as a light inlet and a light port 20 as a light outlet. Suction fans 4 and exhaust fans 5 are respectively provided on both sides (the two end faces adjacent to the bottom) of the convex inner housing 3. The suction fan 4 is used to suck air into the inner cavity of the convex inner housing 3, and the exhaust fan 5 is used to discharge the gas in the inner cavity of the convex inner housing 3. A suction port 19 is detachably connected to the periphery of the suction fan 4. The suction port 19 and the suction fan 4 are detachably connected by an existing structure, such as a threaded connection. For the case of a small detection space, a suction port 19 with a smaller diameter can be connected to the periphery of the suction fan 4 through a threaded adapter. The function of the suction port 19 is to press against the surface of the automotive interior material to be tested, wait for the organic volatile substances in the automotive interior material to be released and temporarily fix them in the space formed between the suction port 19 and the surface of the automotive interior material to be tested. When the suction fan 4 is turned on, the air containing the organic volatile substances in the automotive interior material is sucked into the convex inner housing 3 for detection by the spectral detection unit. In order to ensure the sealing performance of the space formed between the suction port 19 and the surface of the automotive interior material to be tested, a sealing cushion layer is provided at the free end of the suction port 19. In order to prevent the adverse effect of the organic volatile substances in the sealing cushion layer on the detection result, the material of the sealing cushion layer cannot be selected as a rubber material and can be selected as a natural fiber material. A plurality of second reflectors are provided in the convex inner housing 3 to ensure that the light entering from the light port 10 is reflected by the plurality of second reflectors and then exits the convex inner housing through the light port 2. Figure 1 and Figure 2As can be seen, preferably, there are three second reflectors. One second reflector 11 is disposed at the middle of the bottom of the convex inner housing 3, and two second reflectors 12 and 13 are disposed at the top of the convex inner housing 3. The second reflectors 12 and 13 are symmetrically arranged relative to the second reflector 11 in the horizontal direction. Those skilled in the art can also set the number and position of the emitting mirrors according to needs. The spectral detection unit is disposed directly below the gas collection unit. The spectral detection unit includes an open housing 2. A spectral emitter 6 and a spectral receiver 7 are disposed at the bottom of the open housing 2. A pair of first reflectors are disposed on the inner sides of the two end faces of the open housing 2. The near-infrared light emitted from the spectral emitter 6 is reflected by the first reflector 9 disposed close to the spectral emitter 6 and then enters the light port 10. The near-infrared light emitted from the light port 20 is reflected by the first reflector 8 disposed close to the spectral receiver 7 and is just received by the spectral receiver 7. After the spectral receiver 7 receives the near-infrared light, it detects the types and contents of the organic volatile substances in the air in the convex inner housing 3, and further determines whether the content of the organic volatile substances in the measured automotive interior material meets the standard according to the detection data of the spectral detection unit. In the above technical solution, both the spectral emitter 6 and the spectral receiver 7 adopt existing spectral emitters and spectral receivers. By using the first reflector and the second reflector to reflect the near-infrared light, the volume of the detection device for the organic volatile substances in the automotive interior material can be effectively reduced. By using the spectral method to detect the organic volatile substances in the automotive interior material, the detection of the organic volatile substances in the automotive interior material can be directly completed without disassembling the automotive interior.

[0029] In the above technical solution, both the spectral emitter 6 and the spectral receiver 7 adopt existing structures. For example, in the patent with publication number CN117074359A and name "A Device and Method for Detecting Volatile Substances by Near-Infrared", an implementation structure of the spectral emitter 6 and the spectral receiver 7 is disclosed. The spectral emitter 6 includes a near-infrared light emitter, a diaphragm, and a collimating lens arranged coaxially in sequence. The near-infrared light emitter includes a halogen tungsten lamp and a condenser ring. The spectral receiver 7 includes a filter, a spectral sensor, and a micro control unit. The spectral sensor has multiple ones. The detection principle of using near-infrared spectroscopy to detect organic volatile substances is the same as that described in the invention patent with publication number CN117074359A, and no specific description is made in this application.

[0030] In the above technical solution, the usage method of the detection device for the organic volatile substances in the automotive interior material is as follows:

[0031] 1. Outside the vehicle, turn on the exhaust fan 5 to exhaust the original air inside the convex inner housing 3, and then turn off the exhaust fan 5. Then, place the detection device inside the vehicle and select an air suction port 19 with an appropriate diameter. Press the air suction port 19 against the surface of the vehicle interior to be tested. Turn on the suction fan 4 to suck air for 5 - 20 minutes. Turn on the spectral emitter 6 and the spectral receiver 7 to detect the organic volatile substances in the vehicle interior material. The detection result is used as blank control data.

[0032] 2. Take the detection device out of the vehicle, turn on the exhaust fan 5 to exhaust the air inside the convex inner housing 3, then turn off the exhaust fan 5 and place it back inside the vehicle.

[0033] 3. Press the air suction port 19 against the surface of the vehicle interior to be tested and wait for more than 16 hours for the organic volatile substances in the vehicle interior to volatilize, forming an enrichment area of organic volatile substances between the air suction port 19 and the vehicle interior to be tested.

[0034] 4. First, turn on the exhaust fan 5 to exhaust the air inside the convex inner housing 3 again, and then turn on the suction fan 4 to suck air for 5 - 20 minutes in the enrichment area of organic volatile substances. Turn on the spectral emitter 6 and the spectral receiver 7 to detect the organic volatile substances in the vehicle interior material and determine whether the content of organic volatile substances in the vehicle interior material to be tested meets the standard based on the difference between the detection value and the blank control data. The threshold for determining whether the content of organic volatile substances in the vehicle interior material to be tested meets the standard is related to factors such as the volatilization time and the air suction time.

[0035] In the above technical solution, to prevent the adverse effect of the organic volatile substances in the material of the detection device for organic volatile substances in the vehicle interior material on the detection result, as a preferred solution of this application, both the convex inner housing 3 and the open outer housing 2 are provided with sealable cavity doors. The size of the cavity doors is suitable for an adult's hand to reach in and take out. When the detection device for organic volatile substances in the vehicle interior material is not in use, adsorbent substances such as activated carbon are placed in the inner cavities of the convex inner housing 3 and the open outer housing 2 to eliminate the adverse effect of the organic volatile substances in the device's own material on the detection result. When the detection device for organic volatile substances in the vehicle interior material is in use, the activated carbon and other adsorbent substances are taken out.

[0036] In the above technical solution, in order to more accurately measure the volatile concentration of organic volatile substances in the automotive interior for more than 16 hours, the influence of the original organic volatile substances in the blank control should be reduced. Before conducting the blank control, some preparatory work should be done. First, the vehicle with the interior to be tested should be placed in a sampling environmental chamber (the sampling environmental chamber should comply with the sampling and determination standards for volatile organic compounds and aldehydes and ketones in vehicles). Second, the covering on the surface of the automotive interior to be tested should be removed and moved outside the sampling environmental chamber. Third, the doors and windows of the vehicle with the interior to be tested that can be opened should be fully opened, and it should be statically placed for no less than 6 hours, and then the blank control experiment in step 1 should be carried out. During the volatile time of the organic volatile substances in the automotive interior and when detecting the organic volatile substances in the automotive interior materials in step 4, all the doors and windows of the vehicle with the interior to be tested should be completely closed to ensure the airtightness of the whole vehicle.

[0037] As Figure 3 shown, in one of the technical solutions, a vacuum pump 17 communicating with the inner cavity of the open outer housing 2 is provided on the open outer housing 2. Figure 3 Among them, reference numeral 18 is a vacuum gauge of the vacuum pump. A vacuum pump 17 is provided on the open outer housing 2 to evacuate the inner cavities of the open outer housing 2 and the convex inner housing 3 to form a negative pressure. Before placing the detection device for organic volatile substances in automotive interior materials in the vehicle, the vacuum pump 17 is used to assist the exhaust fan 5 to first exhaust the original air in the inner cavities of the open outer housing 2 and the convex inner housing 3, remove the interfering gases, and ensure the accuracy of the detection. Before the suction fan 4 starts to suck air, the vacuum pump 17 is used to assist the exhaust fan 5 to exhaust the gases in the inner cavities of the open outer housing 2 and the convex inner housing 3 and form a negative pressure in the inner cavities of the open outer housing 2 and the convex inner housing 3, which is convenient for the suction operation of the suction fan 4.

[0038] As Figure 1 Or Figure 2 shown, in one of the technical solutions, a pair of sealing plates 16 are provided in the inner cavity of the convex inner housing 3. The pair of sealing plates 16 are respectively arranged close to the suction fan 4 and the exhaust fan 5. Any one of the sealing plates includes a plurality of louver blades, an upper beam 14, and a louver motor 15. The plurality of louver blades are arranged in sequence along the width direction of the convex inner housing 3. Driven by the louver motor, adjacent blades present different states of being buckled or separated from each other. The sealing plate 16 is configured in the structure of a louver window. When the exhaust fan 5 or the suction fan 4 is working, the louver window structure of the sealing plate 16 is opened to exhaust or suck air into the convex inner housing 3. When the exhaust fan 5 and the suction fan 4 finish working, the louver window structure of the sealing plate 16 is closed to form a closed space in the convex inner housing 3 to prevent the instability of the detection result caused by air leakage. Among them, the louver window structure of the sealing plate 16 is a prior art, and the present application does not make specific elaboration.

[0039] In one of the technical solutions, a sealing strip is provided on the outer wall of the reduced-diameter section of the convex inner housing 3, which is beneficial to the sealed connection between the convex inner housing 3 and the open outer housing 2.

[0040] As Figure 2 shown, in one of the technical solutions, a base 1 is further provided at the bottom of the spectral detection unit. The base 1 includes a rubber layer 101 and a hard plastic layer 102 adhesively bonded from top to bottom. The Shore hardness A of the rubber layer 101 is 70 to 90 degrees, and the Shore hardness D of the hard plastic layer 102 is 70 to 90 degrees. The setting of the base is beneficial to the stability of the device for detecting organic volatile substances in automotive interior materials. The upper layer of the base is provided with the rubber layer 101, which is beneficial to buffering the fine vibrations generated during the operation of the exhaust fan 5 and the suction fan 4, and the lower hard plastic layer 102 is beneficial to the stability of the device for detecting organic volatile substances in automotive interior materials.

[0041] As Figure 1 and Figure 2 shown, in one of the technical solutions, the spectral emitter 6 and the spectral receiver 7 are symmetrically arranged with respect to the center of the bottom of the open outer housing 2. A pair of first reflectors are respectively arranged at the corresponding positions on the two end faces of the open outer housing 2. As a preferred arrangement structure of the spectral emitter 6, the spectral receiver 7 and the first reflector, it is beneficial to reduce the size of the detection device and facilitate the direct detection of organic volatile substances in automotive interior materials inside the vehicle.

[0042] In one of the technical solutions, a control board connected to the power supply is provided on the open outer housing 2. The control board is communicatively connected to the spectral emitter 6, the spectral receiver 7, the suction fan 4, the exhaust fan 5, and the shutter motor 15 of the sealing plate. The volatilization of organic volatile substances in automotive interior materials takes time, and the automatic detection of organic volatile substances in automotive interior materials can be completed after setting the program.

[0043] In one of the technical solutions, a pair of dust-proof nets are provided on one side of a pair of sealing plates 16 close to the suction fan 4 and the exhaust fan 5 respectively, along the width direction of the convex inner housing, that is, the pair of dust-proof nets are provided between the suction fan 4 and one sealing plate, and between the exhaust fan 5 and the other sealing plate respectively, to prevent dust and the like from affecting the accuracy of spectral detection.

[0044] As described above, according to the present utility model, the present utility model at least includes the following beneficial effects: The detection device for organic volatile substances of automotive interior materials provided by the present utility model includes a spectral detection unit and a gas collection unit. The gas collection unit is used to collect the air in the surrounding environment of the automotive interior materials, and the spectral detection unit is used to quickly and accurately detect the air collected by the gas collection unit, so as to quickly detect whether the organic volatile substances of the automotive interior materials meet the standards without disassembling the automotive interior; A detachable air inlet is provided around the suction fan of the gas collection unit, and the air inlet can enrich the organic volatile substances in the automotive interior materials to be tested into the air inlet, improving the accuracy of the detection of organic volatile substances in automotive interior materials. Different sizes of air inlets can also be set according to the size of the surrounding space of the automotive interior materials to be tested, improving the adaptability of the detection device for organic volatile substances in automotive interior materials; A pair of sealing plates are also provided in the gas collection unit, which can fix the air sucked by the suction fan in a certain sealed space, improving the accuracy of the detection of organic volatile substances in automotive interior materials; A vacuum pump communicating with the inner cavity of the open outer shell is provided on the open outer shell, which can effectively remove the interfering gases in the detection device for organic volatile substances of automotive interior materials, and at the same time form a negative pressure in the detection device for organic volatile substances of automotive interior materials, which is beneficial for the suction fan to suck the surrounding air of the automotive interior materials to be tested into the detection device.

[0045] The equipment quantity and processing scale described here are used to simplify the description of the present utility model. The application, modification and variation of the detection device for organic volatile substances of automotive interior materials of the present utility model are obvious to those skilled in the art.

[0046] Although the embodiments of the present utility model have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present utility model is not limited to the specific details and the illustrated examples described here.

Claims

1. A device for detecting volatile organic substances in automobile interior materials, characterized in that: include: The spectrum detection unit comprises an open outer shell with an opening upwardly disposed, a spectrum transmitter and a spectrum receiver disposed facing the opening direction are disposed at the bottom of the open outer shell, and a pair of first reflectors are disposed on the inner sides of both end surfaces of the open outer shell; A gas collecting part, comprising a convex inner shell, a reduced diameter section of the convex inner shell is sealed and inserted into the open end of the open outer shell, a pair of light ports are provided at the bottom of the convex inner shell, a suction fan and an exhaust fan are respectively provided on both sides of the convex inner shell, the suction fan and the exhaust fan are both connected to the convex inner shell, and a detachable suction port is provided on the periphery of the suction fan; Among them, a plurality of second reflectors are provided in the convex inner shell body, so that the near-infrared light emitted by the spectrum emitter is reflected by the first reflector close to the spectrum emitter and then enters the convex inner shell body through a light port. In the convex inner shell body, the near-infrared light is reflected by the plurality of second reflectors and then emitted out of the convex inner shell body from another light port and is reflected by the first reflector close to the spectrum receiver and then received by the spectrum receiver.

2. The device for detecting volatile organic substances in automobile interior materials according to claim 1, characterized in that: The open outer shell is provided with a vacuum pump which is in communication with the inner cavity of the open outer shell.

3. The device for detecting volatile organic substances in automobile interior materials according to claim 2, characterized in that: A pair of sealing plates are provided in the inner cavity of the convex inner shell, and the pair of sealing plates are respectively arranged close to the suction fan and the exhaust fan. Any sealing plate includes a plurality of bottom louvers, an upper beam, and a louver motor. The plurality of louver blades are arranged in sequence along the width direction of the convex inner shell. Driven by the louver motor, adjacent blades are in different states of mutual locking or separation.

4. The device for detecting volatile organic substances in automobile interior materials as claimed in claim 3, characterized in that: The outer wall of the reduced diameter section of the convex inner shell is provided with a sealing strip.

5. The device for detecting volatile organic substances in automobile interior materials as claimed in claim 4, characterized in that: A base is also provided at the bottom of the spectrum detection unit. The base includes a rubber layer and a hard plastic layer bonded from top to bottom. The Shore A hardness of the rubber layer is 70 to 90 degrees, and the Shore D hardness of the hard plastic layer is 70 to 90 degrees.

6. The device for detecting volatile organic substances in automobile interior materials as claimed in claim 5, characterized in that: The spectrum transmitter and the spectrum receiver are symmetrically arranged relative to the center of the bottom of the open outer shell, and a pair of first reflectors are respectively arranged at corresponding positions on both end surfaces of the open outer shell.

7. The device for detecting volatile organic substances in automobile interior materials according to claim 6, characterized in that: The open outer shell is provided with a control panel connected to a power supply, and the control panel is electrically connected to the spectrum transmitter, the spectrum receiver, the suction fan, the exhaust fan, and the shutter motor of the sealing plate.

8. The device for detecting volatile organic substances in automobile interior materials according to claim 7, characterized in that: A pair of sealing plates are provided with dustproof nets arranged along the width direction of the convex inner shell on one side close to the suction fan and the exhaust fan respectively.

Images