Odor grade detection device and odor grade detection system

Abstract

The invention discloses an odor grade detection device and an odor grade detection system, and the odor grade detection device comprises a detection unit which comprises a detection cabin and a detection component, and the detection component is communicated with the detection cabin and is used for detecting gas in the detection cabin; the air suction unit is communicated with the detection cabin and is used for enabling the detection cabin to suck air; the analysis unit is in communication connection with the detection component and is used for analyzing and forming smell characteristic information; the smell grade detection device is provided with a detection gas inlet and a purging gas inlet, and the smell grade detection device further comprises a control unit which is used for controlling the communication states of the detection gas inlet and the purging gas inlet with the detection cabin respectively. Therefore, odor grade detection is carried out through the odor grade detection device, the detection efficiency can be improved, the high-frequency sampling inspection requirement of a part supplier can be met, the accuracy of the detection result can be improved, and the manufacturing cost of the vehicle can be reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle component product testing, and in particular to an odor level detection device and an odor level detection system having the odor level detection device. Background Technology

[0002] In related technologies, with the upgrading of vehicle consumption and the popularization of the concept of healthy travel, the volatile organic compounds and odors emitted by vehicle interior materials have become key indicators affecting the driving and riding experience. Harmful gases such as benzene and aldehydes released by component materials under high temperature and humidity environments not only cause user complaints but may also lead to health risks such as headaches and allergies. Therefore, building a scientific odor control system for interior components has become a strategic requirement for vehicle manufacturers to enhance product competitiveness and fulfill their social responsibilities.

[0003] Current methods for detecting odor levels rely on manual olfaction, where trained olfaction experts subjectively assess the odor levels of vehicle components and the entire vehicle cabin. This method is inefficient, failing to meet the high-frequency sampling requirements of component suppliers. Furthermore, its low accuracy affects the final results, potentially leading to defective components entering the production line and triggering mass vehicle recalls. Additionally, the high management costs of olfaction experts increase vehicle manufacturing costs. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide an odor level detection device that can improve detection efficiency, increase the accuracy of detection results, and reduce vehicle manufacturing costs.

[0005] The present invention further proposes an odor level detection system.

[0006] The odor level detection device according to the present invention comprises: The detection unit includes a detection chamber and detection components. The detection components are connected to the detection chamber and are used to detect the gas inside the detection chamber. The air intake unit is connected to the detection chamber and is used to draw gas into the detection chamber. The analysis unit is communicatively connected to the detection components and is used to analyze and generate odor characteristic information; The odor level detection device has a detection gas inlet and a purge gas inlet. The odor level detection device also includes a control unit, which is used to control the connection status of the detection gas inlet and the purge gas inlet with the detection chamber.

[0007] According to the odor level detection device of the present invention, odor level detection can be performed by the odor level detection device, which can improve the detection efficiency, help meet the high-frequency sampling inspection needs of parts suppliers, improve the accuracy of the detection results, and reduce the manufacturing cost of vehicles.

[0008] In some examples of the present invention, the odor level detection device includes a housing, at least one of a detection unit, a suction unit, a control unit, and an analysis unit disposed within the housing, and both the detection gas inlet and the purge gas inlet are exposed outside the housing.

[0009] In some examples of the present invention, the detection gas inlet and the purge gas inlet are located on the same side of the housing.

[0010] In some examples of the present invention, the detection chamber has an air inlet and an air outlet, the control unit includes a first control valve and a second control valve, the first control valve is used to control the opening and closing of the air inlet and the detection gas inlet, the second control valve is used to control the opening and closing of the air inlet and the purge gas inlet, and the suction unit is connected to the air outlet.

[0011] In some examples of the present invention, the odor level detection device includes a housing, a detection unit, an intake unit, and a control unit, all disposed within the housing. The housing is rectangular in shape, with a length greater than its width and a width greater than its thickness. The detection gas inlet and the purge gas inlet are both exposed on one side surface of the housing in the width direction and are spaced apart along the length direction of the housing. The first control valve and the second control valve are both located on the side of the detection unit near the detection gas inlet and the purge gas inlet along the width direction of the housing and are spaced apart along the length direction of the housing. The intake unit is located on one side of the detection unit along the length direction of the housing.

[0012] In some examples of the present invention, the air intake unit includes an air pump and a third control valve, wherein the inlet of the air pump is connected to the detection chamber through an air extraction pipe, and the third control valve is located in the air extraction pipe.

[0013] In some examples of the present invention, the odor level detection device further includes an exhaust pipe connected to the outlet of an air pump.

[0014] In some examples of the present invention, the detection chamber defines a detection cavity, the detection chamber has a detection port communicating with the detection cavity, the detection element is located outside the detection chamber and covers the detection port, and the detection element detects the gas to be detected in the detection chamber through the detection port.

[0015] In some examples of the present invention, there are multiple detection ports and multiple detection components, and the multiple detection components correspond one-to-one with the multiple detection ports.

[0016] In some examples of the present invention, multiple detection ports are located on different sides of the detection chamber, and multiple detection components are located on different sides of the detection chamber.

[0017] In some examples of the present invention, the odor level detection device includes a housing, which is rectangular in shape, with a length greater than its width and a width greater than its thickness. A detection unit, a control unit, and an intake unit are all disposed inside the housing. Multiple detection components are distributed on both sides of the detection chamber along the length direction of the housing. The detection chamber has an air inlet for connecting to a detection gas inlet and a purge gas inlet, and an air outlet for connecting to the intake unit. The air inlet and the air outlet are distributed on both sides of the detection chamber along the width direction of the housing.

[0018] In some examples of the present invention, the odor level detection device further includes: The heating unit works in conjunction with the detection chamber and is used to heat the detection chamber.

[0019] In some examples of the present invention, the odor level detection device further includes: The display screen is used to show the test results of the odor level detection device.

[0020] In some examples of the present invention, the odor level detection device includes a housing, which is rectangular in shape, with a length greater than its width and a width greater than its thickness. The two sides of the housing in the thickness direction are a first side and a second side, respectively. The display screen is displayed on the first side of the housing. The detection unit, the air intake unit, and the control unit are all disposed inside the housing and are all located on the side of the display screen closer to the second side.

[0021] In some examples of the present invention, the odor level detection device further includes: A power supply unit is electrically connected to the power consumption unit of the odor level detection device for supplying power to the power consumption unit. The power supply unit includes at least one of a power storage unit and a mains power connection.

[0022] The odor level detection system according to the present invention includes: Odor level detection device, wherein the odor level detection device is the odor level detection device described above; The odor level determination unit is communicatively connected to the analysis unit and is configured to determine the odor level of the gas to be detected based on odor characteristic information.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is a schematic diagram of an odor level detection device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of an odor level detection device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the detection chamber according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the detection chamber from another angle according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the detection chamber according to an embodiment of the present invention.

[0025] Figure label: Odor level detection device 100; Detection unit 10; Detection chamber 11; air inlet 111; air outlet 112; detection cavity 113; detection port 114; 12 testing components; Intake unit 20; Air pump 21; Third control valve 22; Suction pipe 23; Analysis Unit 30; Detection gas inlet 40; first air inlet pipe 41; purge gas inlet 50; second air inlet pipe 51; Control unit 60; First control valve 61; Second control valve 62; Housing 70; mounting space 71; mounting through hole 72; clearance hole 73; Exhaust pipe 80; Heating unit 90; Display screen 91; first connecting pipe 92; second connecting pipe 93; three-way structure 94. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The following is for reference. Figures 1-5 This invention describes an odor level detection device 100 according to an embodiment of the present invention. The odor level detection device 100 is used to detect the odor level of a gas. The odor level detection device 100 can detect the odor level of gases emitted by vehicle interior parts, but the present invention is not limited thereto. The odor level detection device 100 can also detect the odor level of gases emitted by other structural components. This application uses the odor level detection device 100 detecting the odor level of gases emitted by vehicle interior parts as an example for illustration.

[0028] like Figure 1 and Figure 2 As shown, the odor level detection device 100 according to an embodiment of the present invention includes: a detection unit 10, the detection unit 10 including a detection chamber 11 and a detection element 12, the detection element 12 being connected to the detection chamber 11 and used to detect the gas in the detection chamber 11; an intake unit 20, the intake unit 20 being connected to the detection chamber 11 and used to allow the detection chamber 11 to draw in gas; and an analysis unit 30, the analysis unit 30 being communicatively connected to the detection element 12 and used to analyze and form odor characteristic information; wherein, the odor level detection device 100 has a detection gas inlet 40 and a purge gas inlet 50, and the odor level detection device 100 also includes a control unit 60, the control unit 60 being used to control the communication state of the detection gas inlet 40 and the purge gas inlet 50 with the detection chamber 11 respectively.

[0029] The odor level detection device 100 includes a detection unit 10, an intake unit 20, and an analysis unit 30. The detection unit 10 includes a detection chamber 11 and a detection element 12. When the odor level detection device 100 detects a gas to be detected, the detection chamber 11 can store the gas to be detected. Since the detection element 12 is connected to the detection chamber 11, the detection element 12 can detect the gas to be detected in the detection chamber 11. After clean gas flows into the detection chamber 11, the detection element 12 can detect the clean gas. It should be noted that the detection element 12 can be directly connected to the detection chamber 11, or the detection element 12 can be indirectly connected to the detection chamber 11 through a connecting pipe. For example, the detection element 12 can be a MEMS sensor array, which is a detection structure that integrates multiple MEMS sensors in the same chip or module for simultaneous detection of multiple gases. However, the present invention is not limited to this; the detection element 12 can also be other structures, as long as they can perform the same function as the MEMS sensor array.

[0030] The suction unit 20 is connected to the detection chamber 11. The suction unit 20 can be directly connected to the detection chamber 11, or it can be indirectly connected to the detection chamber 11 through a connecting structure. When the suction unit 20 is working, it can draw gas into the detection chamber 11. For example, the suction unit 20 can be configured as a centrifugal pump.

[0031] The analysis unit 30 can be a circuit board structure. The analysis unit 30 is communicatively connected to the detection element 12. This communication can be wireless or via a wire harness. The analysis unit 30 receives the gas response electrical signal output by the detection element 12 when detecting the gas to be detected. After receiving the gas response electrical signal, the analysis unit 30 analyzes it and generates odor characteristic information, which can be an odor characteristic spectrum. The analysis unit 30 can also communicate with an odor level determination unit, transmitting the odor characteristic information to the odor level determination unit. The odor level determination unit can then determine the odor level of the gas to be detected based on the odor characteristic information.

[0032] The odor level detection device 100 has a detection gas inlet 40 and a purge gas inlet 50. As an example, the odor level detection device 100 may include a first inlet pipe 41 and a second inlet pipe 51, the first inlet pipe 41 defining the detection gas inlet 40 and the second inlet pipe 51 defining the purge gas inlet 50. As another example, the odor level detection device 100 may include a housing 70, the housing 70 having the detection gas inlet 40 and the purge gas inlet 50 formed thereon. Both the detection gas inlet 40 and the purge gas inlet 50 are selectively connected to the detection chamber 11. The odor level detection device 100 also includes a control unit 60, which controls whether the detection gas inlet 40 is connected to or disconnected from the detection chamber 11, and also controls whether the purge gas inlet 50 is connected to or disconnected from the detection chamber 11. Exemplarily, the control unit 60 may be a valve structure.

[0033] The specific method for detecting odor levels using the odor level detection device 100 is as follows.

[0034] Sample pretreatment: Place the sample to be tested in the first gas storage structure (e.g., gas storage bag, gas storage bottle, etc.), and place the gas storage structure containing the sample to be tested under a preset temperature environment for a preset time.

[0035] Odor level detection device 100 self-cleaning: The purge gas inlet 50 is connected to a second gas storage structure (e.g., gas storage bag, gas storage bottle, etc.) that stores clean gas (e.g., high-purity air). The detection element 12 is turned on. The control unit 60 controls the connection between the purge gas inlet 50 and the detection chamber 11. The control unit 60 controls the connection between the detection gas inlet 40 and the detection chamber 11. The suction unit 20 is turned on, so that the clean gas flows into the detection chamber 11 through the purge gas inlet 50. The clean gas flowing into the detection chamber 11 is sucked out by the suction unit 20, achieving the effect of cleaning the detection chamber 11. The odor level detection device 100 is ready for detection when the detection element 12 detects that the odor in the detection chamber 11 reaches the required value. The control unit 60 controls the connection between the purge gas inlet 50 and the detection chamber 11.

[0036] Gas collection and analysis: The detection gas inlet 40 is connected to the first gas storage structure. The control unit 60 controls the detection gas inlet 40 to connect to the detection chamber 11, and controls the purge gas inlet 50 to disconnect from the detection chamber 11. The suction unit 20 operates to draw the gas to be detected from the first gas storage structure into the detection chamber 11 through the detection gas inlet 40. The suction unit 20 continues to operate until the clean gas in the detection chamber 11 is fully extracted, and then stops operating. The control unit 60 controls the detection gas inlet 40 to disconnect from the detection chamber 11, and the detection element 12 makes full contact with the gas to be detected. The detection element 12 outputs a gas response electrical signal to the analysis unit 30. The analysis unit 30 automatically analyzes and forms odor characteristic information. The analysis unit 30 can transmit the odor characteristic information to the odor level determination unit. After receiving the odor characteristic information, the odor level determination unit matches it with multiple preset odor characteristic information in the database to determine the odor level of the received odor characteristic information. Furthermore, the odor level determination unit can output the odor level evaluation result and the detection data report. It should be noted that the multiple preset odor characteristic information correspond to different odor levels.

[0037] Odor level detection using the odor level detection device 100 of this application can replace manual odor identification, improve detection efficiency, meet the high-frequency sampling inspection needs of parts suppliers, and improve detection accuracy, thereby reducing the risk of defective parts entering the production line and thus reducing the risk of mass vehicle recalls. At the same time, it can greatly reduce the number of odor identification personnel, thereby reducing their salary costs and ultimately reducing vehicle manufacturing costs.

[0038] Therefore, odor level detection using the odor level detection device 100 can improve detection efficiency, meet the high-frequency sampling requirements of parts suppliers, improve the accuracy of detection results, and reduce vehicle manufacturing costs. The odor level detection device 100 of this application replaces the problems of poor consistency, high cost, low efficiency, occupational hazards, and insufficient control effectiveness caused by manual olfaction, solving the pain points of major automakers in the field of odor control.

[0039] In some examples of the present invention, such as Figure 1 and Figure 2 As shown, the odor level detection device 100 includes a housing 70, at least one of the following: a detection unit 10, a suction unit 20, a control unit 60, and an analysis unit 30 is disposed within the housing 70, and the detection gas inlet 40 and the purge gas inlet 50 are both exposed in the housing 70.

[0040] The odor level detection device 100 may include a housing 70, which may be a metal part or a non-metal part, and the shape of the housing 70 may be a cylinder, a cube, or the like. The housing 70 may define an installation space 71, which may be a closed space or an open space. Any one of the detection unit 10, the intake unit 20, the control unit 60, and the analysis unit 30 is disposed within the mounting space 71 of the housing 70; or any two of the detection unit 10, the intake unit 20, the control unit 60, and the analysis unit 30 are disposed within the mounting space 71 of the housing 70; or any three of the detection unit 10, the intake unit 20, the control unit 60, and the analysis unit 30 are disposed within the mounting space 71 of the housing 70; or all of the detection unit 10, the intake unit 20, the control unit 60, and the analysis unit 30 are disposed within the mounting space 71 of the housing 70. This application uses the example of all three of the detection unit 10, the intake unit 20, the control unit 60, and the analysis unit 30 being disposed within the mounting space 71 of the housing 70 for illustration. The housing 70 can accommodate the detection unit... 10. The intake unit 20, control unit 60, and analysis unit 30 are protected to reduce the risk of damage to the detection unit 10, intake unit 20, control unit 60, and analysis unit 30 by external objects. Furthermore, the detection unit 10, intake unit 20, control unit 60, and analysis unit 30 are housed within the housing 70, which can hide the detection unit 10, intake unit 20, control unit 60, and analysis unit 30 within the housing 70. This improves the structural compactness of the odor level detection device 100, thereby facilitating the miniaturization design of the odor level detection device 100. This makes the odor level detection device 100 easier to handle and carry, and allows for a portable structure, making it convenient for staff to carry the odor level detection device 100 to the detection location.

[0041] Both the detection gas inlet 40 and the purge gas inlet 50 are exposed within the housing 70. It should be noted that at least a portion of the structure of the detection gas inlet 40 and at least a portion of the structure of the purge gas inlet 50 are exposed within the housing 70. This arrangement allows the detection gas inlet 40 and the purge gas inlet 50 to be exposed within the housing 70, facilitating the connection between the detection gas inlet 40 and the first gas storage structure, as well as the connection between the purge gas inlet 50 and the second gas storage structure, thereby improving detection efficiency.

[0042] In some examples of the present invention, such as Figure 1 and Figure 2 As shown, the detection gas inlet 40 and the purge gas inlet 50 are located on the same side of the housing 70.

[0043] In the process of using the odor level detection device 100 to detect the odor level of the gas to be tested, by setting the detection gas inlet 40 and the purge gas inlet 50 on the same side of the housing 70, the detection gas inlet 40 can be connected to the first gas storage structure and the purge gas inlet 50 can be connected to the second gas storage structure on the same side of the housing 70. The operator does not need to adjust the orientation of the housing 70 to achieve the connection between the detection gas inlet 40 and the first gas storage structure and the purge gas inlet 50 and the second gas storage structure, which helps to simplify the detection steps of the odor level detection device 100 and further improve the detection efficiency.

[0044] In some examples of the present invention, such as Figures 2-5 As shown, the detection chamber 11 has an air inlet 111 and an air outlet 112. The control unit includes a first control valve 61 and a second control valve 62. The first control valve 61 is used to control the opening and closing of the air inlet 111 and the detection gas inlet 40, and the second control valve 62 is used to control the opening and closing of the air inlet 111 and the purge gas inlet 50. The suction unit 20 is connected to the air outlet 112.

[0045] The detection chamber 11 has an air inlet 111 and an air outlet 112. The control unit includes a first control valve 61 and a second control valve 62. The first control valve 61 can be a mechanical control valve or a solenoid valve. The second control valve 62 can be a mechanical control valve or a solenoid valve. This application uses the example where both the first control valve 61 and the second control valve 62 are solenoid valves for illustration.

[0046] As an example, the inlet of the first intake pipe 41 is the detection gas inlet 40, and the outlet of the first intake pipe 41 is connected to the intake port 111. The first control valve 61 is disposed in the first intake pipe 41, and the first control valve 61 controls the opening and closing of the intake port 111 and the detection gas inlet 40 by controlling the opening and closing of the first intake pipe 41. As another example, the valve inlet of the first control valve 61 is the detection gas inlet 40, and the valve outlet of the first control valve 61 is connected to the intake port 111. The opening or closing of the first control valve 61 controls the opening and closing of the intake port 111 and the detection gas inlet 40.

[0047] As an example, the inlet of the second intake pipe 51 is the purge gas inlet 50, and the outlet of the second intake pipe 51 is connected to the intake port 111. The second control valve 62 is disposed in the second intake pipe 51, and the second control valve 62 controls the opening and closing of the intake port 111 and the purge gas inlet 50 by controlling the opening and closing of the second intake pipe 51. As another example, the valve inlet of the second control valve 62 is the purge gas inlet 50, and the valve outlet of the second control valve 62 is connected to the intake port 111. The opening or closing of the second control valve 62 controls the opening and closing of the intake port 111 and the purge gas inlet 50.

[0048] In the above-mentioned technical direction, by setting the first control valve 61 and the second control valve 62, it is possible to control the opening and closing effect between the air inlet 111 and the detection gas inlet 40, and also to control the opening and closing effect between the air inlet 111 and the purge gas inlet 50. Furthermore, when the first control valve 61 and the second control valve 62 are solenoid valves, it is beneficial to the automated control of the first control valve 61 and the second control valve 62.

[0049] The air intake unit 20 is connected to the air outlet 112. The air intake unit 20 can be directly connected to the air outlet 112, or the air intake unit 20 can be indirectly connected to the air outlet 112 through a connecting structure. Through the connection between the air intake unit 20 and the air outlet 112, the air outlet 112 can connect the air intake unit 20 and the detection chamber 11, thus achieving the effect of connecting the air intake unit 20 and the detection chamber 11.

[0050] In some examples of the present invention, such as Figure 2 As shown, the odor level detection device 100 may further include: a first connecting pipe 92, which connects the first air inlet pipe 41 and the air inlet 111 to achieve the effect of connecting the first air inlet pipe 41 and the air inlet 111.

[0051] In some examples of the present invention, such as Figure 2 As shown, the odor level detection device 100 may further include: a second connecting pipe 93, which connects the second air inlet pipe 51 and the air inlet 111 to achieve the effect of connecting the second air inlet pipe 51 and the air inlet 111.

[0052] In some examples of the present invention, such as Figure 2 As shown, the odor level detection device 100 may further include a three-way structure 94, which has a first valve interface, a second valve interface, and a third valve interface. The first valve interface is connected to the first connecting pipe 92, the second valve interface is connected to the second connecting pipe 93, and the third valve interface is connected to the air inlet 111. The air inlet 111 is connected to both the first connecting pipe 92 and the second connecting pipe 93 through the same three-way valve, which helps to simplify the structure of the odor level detection device 100 and further improves the structural compactness of the odor level detection device 100.

[0053] In some examples of the present invention, such as Figure 1 and Figure 2 As shown, the odor level detection device 100 includes a housing 70, a detection unit 10, an intake unit 20, and a control unit 60, all of which are disposed within the housing 70. The housing 70 is rectangular in shape, with a length greater than its width and a width greater than its thickness. The detection gas inlet 40 and the purge gas inlet 50 are both exposed on one side of the housing 70 in the width direction and are spaced apart along the length direction of the housing 70. The first control valve 61 and the second control valve 62 are both located on the side of the detection unit 10 near the detection gas inlet 40 and the purge gas inlet 50 in the width direction of the housing 70 and are spaced apart along the length direction of the housing 70. The intake unit 20 is located on one side of the detection unit 10 in the length direction of the housing 70.

[0054] The odor level detection device 100 may include a housing 70, and the detection unit 10, the air intake unit 20, and the control unit 60 are all located inside the housing 70. This is beneficial to improving the structural compactness of the odor level detection device 100, thereby facilitating the miniaturization design of the odor level detection device 100. This makes it easier to pick up and carry the odor level detection device 100, and it is also beneficial to make the odor level detection device 100 a portable device, so that staff can carry the odor level detection device 100 to the detection location.

[0055] The housing 70 can be configured as a cuboid shape, such as... Figure 1 As shown, the length direction of the housing 70 is Figure 1 In the X direction, the width direction of the housing 70 is... Figure 1 In the Y direction, the thickness direction of the shell 70 is... Figure 1 In the Z direction. The length of the housing 70 is greater than the width of the housing 70, and the width of the housing 70 is greater than the thickness of the housing 70. This arrangement allows the housing 70 to be set into a flat structure, which makes it easier for staff to pick up and carry the odor level detection device 100, thus making the shape design of the housing 70 reasonable.

[0056] At least a portion of the detection gas inlet 40 and at least a portion of the purge gas inlet 50 are exposed outside the housing 70. Along the width direction of the housing 70, both the detection gas inlet 40 and the purge gas inlet 50 are exposed on one side surface of the housing 70. This allows the detection gas inlet 40 to be connected to the first gas storage structure and the purge gas inlet 50 to be connected to the second gas storage structure in the width direction of the housing 70. Operators do not need to adjust the orientation of the housing 70 to achieve the connection of the detection gas inlet 40 to the first gas storage structure and the purge gas inlet 50 to the second gas storage structure, which simplifies the detection steps of the odor level detection device 100 and further improves the detection efficiency.

[0057] The detection gas inlet 40 and the purge gas inlet 50 are spaced apart along the length of the housing 70. The detection gas inlet 40 and the purge gas inlet 50 can be directly opposite each other along the length of the housing 70, or they can be staggered along the length of the housing 70. Since the length of the housing 70 is greater than its thickness, if the detection gas inlet 40 and the purge gas inlet 50 are spaced apart along the thickness of the housing 70, the thickness of the housing 70 will be relatively small. This will easily cause interference between the first gas storage structure and the detection gas inlet 40 when they are connected, and similarly, interference between the second gas storage structure and the purge gas inlet 50 when they are connected. Therefore, by separating the detection gas inlet 40 and the purge gas inlet 50 along the length of the housing 70, and given the relatively large length of the housing 70, the spacing between the detection gas inlet 40 and the purge gas inlet 50 meets the usage requirements. This reduces the risk of interference between the first gas storage structure and the detection gas inlet 40 when they are connected, and also reduces the risk of interference between the second gas storage structure and the purge gas inlet 50 when they are connected.

[0058] Along the width of the housing 70, the detection unit 10 is located on the side of the first control valve 61 and the second control valve 62 away from the detection gas inlet 40 and the purge gas inlet 50. In other words, the detection gas inlet 40 and the purge gas inlet 50 are located on the side of the first control valve 61 and the second control valve 62 away from the detection unit 10, and the first control valve 61 and the second control valve 62 are spaced apart along the length of the housing 70. Along the length of the housing 70, the suction unit 20 is located on one side of the detection unit 10. The suction unit 20 and the detection unit 10 are arranged along the length of the housing 70, and the suction unit 20 and the detection unit 10 can be spaced apart. This arrangement allows the first control valve 61, the second control valve 62, the detection unit 10 and the suction unit 20 to be arranged in a reasonable position, which is conducive to the overall compact layout of the first control valve 61, the second control valve 62, the detection unit 10 and the suction unit 20, thereby facilitating the miniaturization of the housing 70 and reducing the size of the odor level detection device 100.

[0059] In some examples of the present invention, such as Figure 2 As shown, the air intake unit 20 includes an air pump 21 and a third control valve 22. The inlet of the air pump 21 is connected to the detection chamber 11 through the air extraction pipe 23, and the third control valve 22 is located in the air extraction pipe 23.

[0060] The suction unit 20 may include an air pump 21 and a third control valve 22. The air pump 21 can be a manual or electric air pump. This application uses an electric air pump as an example for illustration. The air pump 21 can be a vacuum pump. The suction pipe 23 can be installed inside the housing 70. One end of the suction pipe 23 is connected to the inlet of the air pump 21, and the other end of the suction pipe 23 is fitted to the outlet 112, so that the inlet of the air pump 21 is connected to the detection chamber 11 through the suction pipe 23, thereby achieving the effect of connecting the suction unit 20 and the detection chamber 11.

[0061] The third control valve 22 can be a mechanical control valve or a solenoid valve. This application uses a solenoid valve as an example for explanation. The third control valve 22 is located in the extraction pipe 23. The third control valve 22 can control the opening and closing of the extraction pipe 23. When the third control valve 22 is open, the extraction pipe 23 connects the air pump 21 and the detection chamber 11. When the third control valve 22 is closed, the extraction pipe 23 does not connect the air pump 21 and the detection chamber 11. When it is necessary for the detection chamber 11 to draw in gas, the third control valve 22 is opened, and the air pump 21 operates to draw in the gas to be tested or the clean gas into the detection chamber 11. The gas in the detection chamber 11 can be drawn out through the extraction pipe 23 and the air pump 21. When it is not necessary for the detection chamber 11 to draw in gas, the third control valve 22 is closed, and the air pump 21 stops working. By setting up an air pump 21 and a third control valve 22, when it is necessary to draw the gas to be tested or the clean gas into the detection chamber 11, the third control valve 22 is opened and the air pump 21 is turned on, so as to draw the gas to be tested or the clean gas into the detection chamber 11. At the same time, the gas in the detection chamber 11 can also be distributed through the air intake unit 20. After the gas to be tested is drawn into the detection chamber 11, during the detection process, the third control valve 22 is closed and the air pump 21 stops working, which can prevent the gas to be tested from flowing out of the detection chamber 11 and keep the detection chamber 11 with a sufficient amount of gas to be tested, thereby helping to maintain the detection accuracy.

[0062] In some examples of the present invention, the air intake unit 20 includes an air pump 21, which can be disposed at the air inlet 111. When the first control valve 61 is open and the second control valve 62 is closed, the air pump 21 can draw the gas to be tested into the detection chamber 11. When the first control valve 61 is closed and the second control valve 62 is open, the air pump 21 can draw clean gas into the detection chamber 11.

[0063] In some examples of the present invention, the air intake unit 20 includes two air pumps 21, one air pump 21 is disposed on the first connecting pipe 92, and the other air pump 21 is disposed on the second connecting pipe 93. When the air pump 21 on the first connecting pipe 92 is working, it can draw the gas to be tested into the detection chamber 11. When the air pump 21 on the second connecting pipe 93 is working, it can draw clean gas into the detection chamber 11.

[0064] In some examples of the present invention, the air intake unit 20 includes three air pumps 21, the first air pump 21 being disposed in the first connecting pipe 92, the second air pump 21 being disposed in the second connecting pipe 93, and the third air pump 21 being disposed in the air inlet 111.

[0065] In some examples of the present invention, such as Figure 2 As shown, the odor level detection device 100 also includes an exhaust pipe 80, which is connected to the outlet of the air pump 21.

[0066] The odor level detection device 100 may further include an exhaust pipe 80, at least a portion of which may be disposed within the housing 70. One end of the exhaust pipe 80 is connected to the outlet of the air pump 21. When the third control valve 22 is open and the air pump 21 is working, the gas in the detection chamber 11 is discharged from the odor level detection device 100 in sequence through the extraction pipe 23, the air pump 21, and the exhaust pipe 80, thereby achieving the effect of venting the gas in the detection chamber 11. This achieves the self-cleaning effect of the odor level detection device 100 and also enables the absorption of the gas to be tested into the detection chamber 11.

[0067] In some examples of the present invention, such as Figure 2 As shown, the housing 70 can be formed with a mounting through hole 72 communicating with the mounting space 71. The other end of the exhaust pipe 80 is fitted into the mounting through hole 72. The inner sidewall of the mounting through hole 72 can limit the exhaust pipe 80, reduce the risk of the exhaust pipe 80 moving, and thus improve the positional stability of the exhaust pipe 80.

[0068] In some examples of the present invention, such as Figures 2-5 As shown, the detection chamber 11 defines a detection cavity 113. The detection chamber 11 has a detection port 114 that communicates with the detection cavity 113. The detection element 12 is located outside the detection chamber 11 and covers the detection port 114. The detection element 12 detects the gas to be detected in the detection chamber 11 through the detection port 114.

[0069] The detection chamber 11 defines a detection cavity 113, and the detection chamber 11 has a detection port 114 that communicates with the detection cavity 113. A detection element 12 is located outside the detection chamber 11, and its detection end covers the detection port 114. The detection element 12 seals the detection port 114, effectively preventing gas from flowing out of the detection chamber 113 through the detection port 114, reducing the direction of gas leakage, and also effectively preventing gas from outside the detection chamber 11 from flowing into the detection cavity 113 through the detection port 114 and contaminating the gas inside the detection cavity 113. When the odor level detection device 100 detects the gas to be detected, the gas to be detected in the detection cavity 113 flows through the detection port 114 to the detection element 12, allowing the detection element 12 to fully contact the gas to be detected, thereby achieving the detection effect of the detection element 12.

[0070] In some examples of the present invention, such as Figures 2-5 As shown, there are multiple detection ports 114 and multiple detection components 12, with each detection component 12 corresponding to a different detection port 114.

[0071] The system includes multiple detection ports 114 and multiple detection components 12. The number of detection ports 114 and the number of detection components 12 are the same. The number of detection ports 114 and detection components 12 can be set to two, three, four, five, etc., and can be reasonably selected according to actual needs. This application uses two detection ports 114 and two detection components 12 as an example for illustration. All detection components 12 are communicatively connected to the analysis unit 30, with one detection component 12 corresponding to each detection port 114. By setting multiple detection ports 114 and multiple detection components 12, multiple detection components 12 can simultaneously detect the gas in the detection chamber 113, which is more conducive to improving the accuracy of the detection results.

[0072] In some examples of the present invention, such as Figure 2 As shown, multiple detection ports 114 are located on different sides of the detection chamber 11, and multiple detection components 12 are located on different sides of the detection chamber 11.

[0073] As one example, the detection chamber 11 has one detection port 114 on each side where the detection port 114 is located, and one detection element 12 on each side where the detection chamber 11 has one detection element 12. As another example, the detection chamber 11 has multiple detection ports 114 on at least one side where the detection port 114 is located, and multiple detection elements 12 on at least one side where the detection element 12 is located. The multiple detection elements 12 can detect the gas in the detection chamber 113 from different directions, detecting gas information at multiple locations within the detection chamber 113, further improving the accuracy of the detection results, and thus making the arrangement of the multiple detection elements 12 more reasonable. Furthermore, the multiple detection elements 12 are located on different sides of the detection chamber 11, reducing the risk of interference between the multiple detection elements 12, facilitating the assembly of the odor level detection device 100, and improving the assembly efficiency of the odor level detection device 100.

[0074] In some examples of the present invention, such as Figure 2 As shown, the odor level detection device 100 includes a housing 70, which is rectangular in shape. The length of the housing 70 is greater than its width and the width is greater than its thickness. The detection unit 10, the control unit 60, and the intake unit 20 are all located inside the housing 70. Multiple detection components 12 are distributed on both sides of the detection chamber 11 along the length direction of the housing 70. The detection chamber 11 has an air inlet 111 for connecting to the detection gas inlet 40 and the purge gas inlet 50, and an air outlet 112 for connecting to the intake unit 20. The air inlet 111 and the air outlet 112 are distributed on both sides of the detection chamber 11 along the width direction of the housing 70.

[0075] The odor level detection device 100 includes a housing 70 (i.e., the housing 70 in the above embodiment), and the detection unit 10, control unit 60, and intake unit 20 are all disposed within the housing 70. Figure 2 As shown, along the length of the housing 70, multiple detection components 12 are arranged on both sides of the detection chamber 11. As an example, there are two detection components 12, each arranged on one side of the detection chamber 11. As another example, there are three detection components 12, each arranged on one side of the detection chamber 11, with one component on one side and two components on the other side. The detection chamber 11 has an air inlet 111 (i.e., the air inlet 111 in the above embodiment), which is connected to both the detection gas inlet 40 and the purge gas inlet 50. The detection chamber 11 also has an air outlet 112 (i.e., the air outlet 112 in the above embodiment), which is connected to the suction unit 20. The air inlet 111 and the air outlet 112 are located on both sides of the detection chamber 11 along the width direction of the housing 70. With multiple detection components 12 arranged along the length of the housing 70 on both sides of the detection chamber 11, and the air inlet 111 and air outlet 112 arranged along the width of the housing 70 on both sides of the detection chamber 11, the odor level detection device 100 can further improve the structural compactness of the odor level detection device 100 after assembly, thereby helping to reduce the volume of the odor level detection device 100.

[0076] In some examples of the present invention, the odor level detection device 100 may further include a heating unit that cooperates with the detection chamber 11 and is used to heat the detection chamber 11.

[0077] For example, Figure 2 As shown, the heating unit is a heating plate located outside the detection chamber 11. The detection chamber 11 and the heating plate exchange heat through contact, and the heating unit heats the detection chamber 11 when it is working. However, the invention is not limited to this; the heating unit can also be a resistance wire heating structure, a ceramic heater, a quartz tube heating structure, etc., and can also be located inside the detection cavity 113 of the detection chamber 11. By setting up the heating unit, when the heating unit is working, the temperature inside the detection cavity 113 can be heated to a set temperature suitable for detection by the detection component 12, thereby placing the detection component 12 in a suitable temperature environment, which is beneficial to improving the sensitivity of the detection component 12 and thus improving the detection accuracy of the detection component 12. Furthermore, by setting up the heating unit, the temperature inside the detection chamber 11 can be controlled, keeping the detection cavity 113 at a constant temperature, and all gas components are detected under the same temperature conditions, eliminating detection deviations caused by changes in the external ambient temperature.

[0078] In some examples of the present invention, such as Figure 1 As shown, the odor level detection device 100 also includes a display screen 91, which is used to display the detection results of the odor level detection device 100.

[0079] The display screen 91 can be fixed to the housing 70. The display screen 91 can be fixed to the housing 70 by adhesive or by snap-fit. As an example, the display screen 91 is located outside and fixed to the housing 70. As another example, the housing 70 has a clearance hole 73 that communicates with the mounting space 71. The display screen 91 is disposed within the mounting space 71 and covers the clearance hole 73. The display screen 91 can communicate with the odor level determination unit. After the odor level determination unit outputs the odor level evaluation result and the test data report, the odor level determination unit can transmit the odor level evaluation result and the test data report to the display screen 91 for display, thereby facilitating the staff to obtain the odor level test results.

[0080] In some examples of the present invention, such as Figure 1 As shown, the odor level detection device 100 includes a housing 70, which is rectangular in shape. The length of the housing 70 is greater than its width and the width is greater than its thickness. The two sides of the housing 70 in the thickness direction are the first side and the second side, respectively. The display screen 91 is displayed on the first side of the housing 70. The detection unit 10, the air intake unit 20, and the control unit 60 are all located inside the housing 70 and are all located on the side of the display screen 91 closer to the second side.

[0081] The odor level detection device 100 includes a housing 70, which can be rectangular in shape. The length of the housing 70 is greater than its width, and the width is greater than its thickness. A display screen 91 is located on the first side of the housing 70. The detection unit 10, the suction unit 20, and the control unit 60 are all housed within the mounting space 71 of the housing 70, and are located on the side of the display screen 91 opposite to the first side. This arrangement allows the display screen 91 to be stacked with the detection unit 10, the suction unit 20, and the control unit 60, which helps reduce the thickness of the housing 70 and allows for a flatter structure, making it easier for staff to handle and carry the odor level detection device 100. This results in a more rational shape design for the housing 70.

[0082] In some examples of the present invention, the odor level detection device 100 further includes a power supply unit, which is electrically connected to the power consumption unit of the odor level detection device 100 for supplying power to the power consumption unit. The power supply unit includes at least one of a power storage unit and a mains power connection.

[0083] The odor level detection device 100 may further include a power supply unit (not shown in the figure), which is electrically connected to the power consumption unit of the odor level detection device 100. The power consumption unit may include components requiring power supply such as the detection element 12, air pump 21, third control valve 22, analysis unit 30, control unit 60, heating unit, and display screen 91. The power supply unit can be electrically connected to the power consumption unit via wires, and the power supply unit is used to supply power to the power consumption unit, thereby enabling the components requiring power supply such as the detection element 12, air pump 21, third control valve 22, analysis unit 30, control unit 60, heating unit, and display screen 91 to operate.

[0084] As an example, the power supply unit includes an energy storage unit. As another example, the power supply unit includes a mains connection. As yet another example, the power supply unit includes both an energy storage unit and a mains connection.

[0085] The energy storage unit can be an energy storage battery, which can be fixed to the housing 70. The energy storage battery can be located outside the housing 70 or inside the mounting space 71 of the housing 70. The energy storage battery is electrically connected to the power consumption unit to supply power to the power consumption unit. Furthermore, the odor level detection device 100 may also include a charging connector, which is electrically connected to the energy storage battery. After the charging connector is electrically connected to the charging cable harness, it can charge the energy storage unit.

[0086] The mains power connector can be an electrical connection wire, which is electrically connected to the power consumption unit. The end of the electrical connection wire away from the power consumption unit can be connected to an electrical plug. After the electrical plug is inserted into the socket, the odor level detection device 100 can be connected to the mains power and the power consumption unit of the odor level detection device 100 can be powered by the mains power.

[0087] With the power supply unit including a power storage unit and a mains connection, the odor level detection device 100 can be powered by dual power sources, selectively using mains power or the built-in power storage unit. The odor level detection device 100 can be taken into the vehicle for testing, facilitating the analysis of odor levels inside the vehicle.

[0088] like Figure 1 and Figure 2 As shown, the odor level detection system according to an embodiment of the present invention includes: an odor level detection device 100, which is the odor level detection device 100 of the above embodiment; an odor level determination unit, which is communicatively connected to the analysis unit 30; and the odor level determination unit is configured to determine the odor level of the gas to be detected based on odor characteristic information.

[0089] The odor level detection system according to embodiments of the present invention improves detection efficiency, facilitates meeting the high-frequency sampling inspection needs of component suppliers, enhances the accuracy of detection results, and reduces vehicle manufacturing costs. This odor level detection system replaces manual olfaction, addressing issues such as poor consistency, high cost, low efficiency, occupational hazards, and insufficient control effectiveness, thus resolving the current pain points of major automakers in odor control.

[0090] The following is based on Figure 2 Learn more about the specific methods for using an odor rating detection system to perform odor rating detection.

[0091] Sample pretreatment: Place the sample to be tested in the first gas storage structure, and place the gas storage structure containing the sample to be tested under the first preset temperature environment for a preset time.

[0092] Odor level detection device 100 self-cleaning: Before the odor level detection device 100 detects the gas to be tested, the purge gas inlet 50 is connected to the second gas storage structure containing clean gas, the detection element 12 is turned on, the control unit 60 controls the connection between the purge gas inlet 50 and the detection chamber 11, and the control unit 60 controls the detection gas inlet 40 to be disconnected from the detection chamber 11. The suction unit 20 is turned on, the third control valve 22 is opened, and the suction unit 20 is started, so that the clean gas flows into the detection chamber 11 through the purge gas inlet 50. The clean gas flowing into the detection chamber 11 is sucked out by the suction unit 20, which fully purges the gas path and the detection chamber 11, achieving the effect of cleaning the detection chamber 11. Until the detection element 12 detects that the odor of the clean gas in the detection chamber 11 reaches the required value, the odor level detection device 100 is ready to detect, and the odor level determination unit triggers the control unit 60 to control the purge gas inlet 50 to be disconnected from the detection chamber 11.

[0093] Gas collection and analysis: The heating unit heats the detection chamber 11 to a first preset temperature, maintaining a constant temperature in the detection cavity 113. The detection gas inlet 40 is connected to the first gas storage structure. The control unit 60 controls the connection between the detection gas inlet 40 and the detection chamber 11, and controls the disconnection between the purge gas inlet 50 and the detection chamber 11. The suction unit 20 operates, drawing the gas to be detected from the first gas storage structure into the detection chamber 11 through the detection gas inlet 40 for purging. The suction unit 20 continues to operate until the clean gas in the detection chamber 11 is fully extracted, at which point it stops operating. When the suction unit 20 stops operating, the third control valve 22 is closed, and the control unit... The gas inlet 40 is not connected to the detection chamber 11. The detection element 12 is in full contact with the gas to be detected. The detection element 12 outputs a gas response electrical signal to the analysis unit 30. The analysis unit 30 automatically analyzes and forms odor characteristic information (e.g., odor characteristic spectrum). The analysis unit 30 transmits the odor characteristic spectrum to the odor level determination unit (e.g., computer). The odor level determination unit determines the odor level of the gas to be detected based on the degree of matching between the odor characteristic spectrum of the gas to be detected and the standard odor level characteristic spectrum library in the cloud database. Thus, the odor level of the received odor characteristic information is determined. The odor level determination unit outputs the odor level evaluation result and the detection data report.

[0094] After the test is completed, the odor level detection system enters the self-cleaning program of the odor level detection device 100 (which can fully discharge the gas components that have been detected in the detection chamber 113 to avoid interference between the gas components that have been detected in the current sample and the gas to be detected in the next sample), and then waits for the detection of the next sample gas to begin.

[0095] It should be noted that the odor level determination unit can share the test results to the cloud. Testing users and downstream regulatory users can view the odor analysis data results of various samples and find odor level reports for relevant products according to their account permissions. The odor level detection system can integrate an intelligent control module, and the odor level detection device 100 can achieve functions such as automatic gas sampling and automatic self-cleaning.

[0096] The odor level detection device 100 of this application detects odor levels. The odor level detection device 100 of this application is small in size and light in weight, and is easy to carry. It realizes instrumental detection of odor control of vehicle parts, which can make up for the shortcomings of manual smelling, improve the efficiency and accuracy of vehicle odor control, reduce costs and risks, and the detection results of the odor level detection device 100 are more objective and have better consistency. It can be widely used for odor control of component assemblies in the vehicle supply chain and evaluation of the air quality level of the whole vehicle.

[0097] Other components of the odor level detection system according to embodiments of the present invention, such as control valves and their operation, are known to those skilled in the art and will not be described in detail here.

[0098] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0099] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An odor grade detection device, characterized by, The device comprises: a detection unit comprising a detection cabin and a detection component in communication with the detection cabin and configured to detect gas in the detection cabin; an air suction unit in communication with the detection cabin and configured to suck gas into the detection cabin; an analysis unit in communication with the detection component and configured to analyze and form odor characteristic information. The odor grade detection device has a detection gas inlet and a purge gas inlet, and further comprises a control unit configured to control the communication state of the detection gas inlet and the purge gas inlet with the detection cabin.

2. The odor level detection device according to claim 1, characterized by The odor grade detection device comprises a housing, at least one of the detection unit, the air suction unit, the control unit and the analysis unit is arranged in the housing, and the detection gas inlet and the purge gas inlet are exposed to the housing.

3. The odor level detection device according to claim 2, characterized by The detection gas inlet and the purge gas inlet are located on the same side of the housing.

4. The odor level detection apparatus according to claim 1, characterized by The detection cabin has a gas inlet and a gas outlet, the control unit comprises a first control valve and a second control valve, the first control valve is configured to control the on-off of the gas inlet and the detection gas inlet, the second control valve is configured to control the on-off of the gas inlet and the purge gas inlet, and the air suction unit is in communication with the gas outlet.

5. The odor level detection device according to claim 4, characterized by The odor grade detection device comprises a housing, the detection unit, the air suction unit and the control unit are arranged in the housing, the housing is in the shape of a rectangular parallelepiped, the length of the housing is greater than the width, and the width is greater than the thickness, the detection gas inlet and the purge gas inlet are exposed to one side surface of the housing in the width direction and are spaced apart in the length direction of the housing, the first control valve and the second control valve are located on the side of the detection unit close to the detection gas inlet and the purge gas inlet in the width direction of the housing and are spaced apart in the length direction of the housing, and the air suction unit is located on one side of the detection unit in the length direction of the housing.

6. The odor level detection apparatus according to claim 1, wherein The air suction unit comprises a gas pump and a third control valve, the inlet of the gas pump is in communication with the detection cabin through a suction pipe, and the third control valve is arranged in the suction pipe.

7. The odor level detection device according to claim 6, characterized by The odor grade detection device further comprises an exhaust pipe in communication with the outlet of the gas pump.

8. The odor level detection apparatus according to claim 1, characterized by The detection cabin defines a detection cavity, the detection cabin is formed with a detection port in communication with the detection cavity, the detection component is located outside the detection cabin and covers the detection port, and the detection component detects the to-be-detected gas in the detection cabin through the detection port.

9. The odor level detection device of claim 8, wherein The detection port and the detection component are both multiple, and the multiple detection components and the multiple detection ports are one-to-one corresponding.

10. The odor level detection device of claim 9, wherein Multiple detection ports are located on different sides of the detection cabin, and multiple detection components are located on different sides of the detection cabin.

11. The odor level detection device of claim 10, wherein The odor grade detection device comprises a shell, the shell is a cuboid shape, the length of the shell is greater than the width, and the width is greater than the thickness, the detection unit, the control unit and the air suction unit are arranged in the shell, a plurality of detection components are arranged on both sides of the detection cabin along the length direction of the shell, the detection cabin is provided with a gas inlet connected with the detection gas inlet and the purge gas inlet, and an air outlet connected with the air suction unit, and the gas inlet and the air outlet are arranged on both sides of the detection cabin along the width direction of the shell.

12. The odor level detection apparatus according to claim 1, wherein Further comprising: A heating unit matched with the detection cabin, the heating unit is used for heating the detection cabin.

13. The odor level detection apparatus according to claim 1, characterized by Further comprising: A display screen for displaying the detection results of the odor grade detection device.

14. The odor level detection device of claim 13, wherein The odor grade detection device comprises a shell, the shell is a cuboid shape, the length of the shell is greater than the width, and the width is greater than the thickness, the detection unit, the control unit and the air suction unit are arranged in the shell, a plurality of detection components are arranged on both sides of the detection cabin along the length direction of the shell, the detection cabin is provided with a gas inlet connected with the detection gas inlet and the purge gas inlet, and an air outlet connected with the air suction unit, and the gas inlet and the air outlet are arranged on both sides of the detection cabin along the width direction of the shell.

15. The odor level detection device of any one of claims 1-14, wherein, Further comprising: A power supply unit electrically connected with the power unit of the odor grade detection device, for supplying power to the power unit, the power supply unit comprises at least one of a power storage unit and a mains connection.

16. An odor level detection system characterized by, Including: An odor grade detection device according to any one of claims 1-15; An odor grade determination unit in communication connection with the analysis unit, the odor grade determination unit is configured to determine the odor grade of the gas to be detected according to the odor characteristic information.

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